Shop Best Cnc Milling Services in HONSCN
In Honscn Co.,Ltd, the cnc milling services is the star product. It is the concentration of our advanced production technique, standard manufacturing, and stringent quality control. All these are keys for its excellent performance and wide but specific applications. 'The users are attracted by its looking and functions,' said one of our purchasers, 'With increasing sales, we would like to order much more to guarantee the supply sufficiency.'
We have made HONSCN a great success. Our secret is to narrow our audience focus when branding our business to improve our competitive advantage. Identifying the target audience for our products is an exercise that we employ, which has greatly contributed to our marketing efforts and our accumulation of accurate customers.
To provide satisfactory service at Honscn, we have employed a dedicated in-house team of product engineers, quality and testing engineers with extensive experience in this industry. They are all well-trained, qualified, and given the tools and authority to make decisions, providing the best services for customers.
Shenzhen Honscn is a professional manufacturer of CNC Machine Parts, Auto Lathe Machine Parts, and Screw Fasteners. We offer OEM and ODM service with any related products for customers. We have a professional team of product design and engineers, as well as a professional QC team, our sales and documentation and logistics departments can finish the requirements of presentation of documents under various payment methods and different transportation modes.
• We can make offcial drawings based on customer request, or customer will provide their drawings for us to quote price and make samples for approval.
• After receiving the samples, customers will do a test for the material, size and tolerance. If customer need to change the size or material, we can arrange second samples for approval. Until customer approved the samples, then we will confirm large order.
Meantime, we will test it before shipping samples. And all tests are strictly carried out according to industry standards.
• If confirmed the sample okay, the customer needs us to provide the Mill Test Crtificate of this product conforming to EU standards, such as CE, RoHS, REACH before placing order. All of our products are in accordance with all the European certification, such as CE, RoHS, REACH, etc., and all of them have prepared standard documents for customers checking.
• We start to prepare the order materials when customer confirm all the details such as material, size, tolerance, surface finish and other details of the final sample.
After the package such as qty, label, shipping mark etc. are provided by customer, we starts to arrange the mass production. After all the goods finished, send pictures to customer for approval. We promise the packag is same as customer requested, mass products are exactly the same as the final samples. The following photos of the shipment, the passing rate of the third-party inspection of our company is 100%.
• After receiving shipment of whole order, customer put it on the market immediately and became the most popular product in the market quickly, no matter from the traditional market, the market of high-end professional fasteners or the online sales in Amazon. We always pay much attention to the quality of our products, which is recognized by customers and repurchased constantly.
• We can make offcial drawings based on customer request, or customer will provide their drawings for us to quote price and make samples for approval.
• After receiving the samples, customers will do a test for the material, size and tolerance. If customer need to change the size or material, we can arrange second samples for approval. Until customer approved the samples, then we will confirm large order.
Meantime, we will test it before shipping samples. And all tests are strictly carried out according to industry standards.
• If confirmed the sample okay, the customer needs us to provide the Mill Test Crtificate of this product conforming to EU standards, such as CE, RoHS, REACH before placing order. All of our products are in accordance with all the European certification, such as CE, RoHS, REACH, etc., and all of them have prepared standard documents for customers checking.
• We start to prepare the order materials when customer confirm all the details such as material, size, tolerance, surface finish and other details of the final sample.
After the package such as qty, label, shipping mark etc. are provided by customer, we starts to arrange the mass production. After all the goods finished, send pictures to customer for approval. We promise the packag is same as customer requested, mass products are exactly the same as the final samples. The following photos of the shipment, the passing rate of the third-party inspection of our company is 100%.
• After receiving shipment of whole order, customer put it on the market immediately and became the most popular product in the market quickly, no matter from the traditional market, the market of high-end professional fasteners or the online sales in Amazon. We always pay much attention to the quality of our products, which is recognized by customers and repurchased constantly.
With the advent of the Industry 4.0 era, CNC processing technology is also changing step by step, in addition to the pursuit of quality breakthroughs, many entrepreneurs are also pursuing automated production! Automation is a future trend in manufacturing. However, as we all know, the cost of manufacturing machine iteration is very expensive, under normal circumstances, the same series of machines do not appear the quality of the general process span will not be iterated machine. So we can avoid the heavy way to improve the production capacity and efficiency of CNC machine tools, and then take a look!
With the change of the development process environment, today's CNC machining machine tool technology has been constantly improving, today's we are already different from yesterday's we, the new era has put forward new challenges to us. What do we need to change to meet the challenge? What is needed is for us to continuously improve our perceptions, our capabilities, our methods and our actions.
1
/
The importance of product processing technology
The process of the internal structure of the product is closely related to the processing cost. The processing technology used by the product directly determines the production cost, and the processing efficiency and production capacity will also be affected by it.
From the perspective of product design, if the manufacturing threshold of processing technology can be fundamentally reduced, on this basis, certain processing costs can be reduced, and the processing CT time of CNC machine tools can be shortened, and the processing quality and processing quality can be improved. Efficiency can be improved. Can greatly improve the CNC machining capacity.
2
/
Tool life management control in CNC machining
The life management control of the tool by the CNC system is to calculate the number of tool machining, or to determine the processing time. Therefore, when the tool life reaches the expected number of machining times or time of the system, the CNC automatically stops the action. It is assumed that when manual supervision is not in place, or when the tool is not able to stop changing in the expected situation, the CNC machining process will be affected. Therefore, tool life is a key factor affecting CNC production capacity.
Especially when the CNC machining process of a workpiece is too much, the processing amount is cumbersome, and the dimensional accuracy of the processing is relatively strict, the tools to be used will be more. At this time, the CNC tool library automatically changes the tool, and the knife action is more frequent, and the tool wear is larger, so that the manual tool change and machine adjustment are more frequent.
Therefore, tool wear is an important indicator that affects the normal production rhythm and capacity of CNC. Through technical measures to improve the process, improve the overall life of the tool, not only can save the cost of the tool, but more importantly, can reduce the stopping time of the CNC spindle, so as to improve the efficiency of CNC processing, improve the production quality and capacity.
3
/
CNC optimization program and process parameters
In the process of confirming the product processing technology, it is necessary to fully consider all the functions of CNC CNC machine tools, to shorten the processing route, reduce the number of tool walking and tool changing times, so as to ensure that the processing capacity is improved.
By choosing a reasonable and appropriate cutting amount, give full play to the cutting performance of the tool, optimize the processing parameters of the CNC, ensure the high-speed machining of the spindle, reduce the CT time of parts processing, and ultimately improve the processing efficiency of the product and improve the production quality.
4
/
CNC machining process improvement
When writing CNC machining process, it is not only necessary to focus on the feasibility of processing, but also to consider whether the process of the processing process will have a negative effect on the processing efficiency. Effectively shorten the processing time of CNC CT and improve production capacity can be achieved by arranging a reasonable processing sequence and reducing the number of tool changes.
5
/
The production site is strictly controlled
The development and strict implementation of production SOP is an indispensable part of CNC machining production process. Manual operation behavior should be reasonably standardized to reduce employees' negative emotions and unnecessary waste of time efficiency. Formulate incentive policies to improve the enthusiasm of technicians, so as to achieve the purpose of improving production capacity and product processing quality.
6
/
CNC machining abnormal problem elimination
The inspection work needs to be comprehensive, such as the use of the cylinder, solenoid valve, motor and other electrical parts in the oil environment on the equipment and fixture condition, and the investigation of these parts before the operation can effectively avoid the situation that the production of CNC spindle is forced to stop, so as to improve the utilization rate of the spindle.
Machine iteration is expensive, but there are other methods we can use to do it at a very small cost in exchange for a high yield.
The high-quality management of CNC machining production should be put in the first place, and the above six points can effectively improve the production performance and capacity of the machine tool.
Six industries that rely on cnc machining
Modern CNC (computer numerical control) machines enable the manufacture of precision parts quickly and efficiently. CNC machines manufacture millions of parts around the world every day. All of these parts vary in size, material and purpose.
CNC machining is often used for metal parts and assemblies with complex designs and tight tolerances. Because of the precision and capability of CNC machining, it is one of the most demanding manufacturing methods.
These industries rely heavily on CNC machined parts: automotive, Aerospace & Defense, medical, construction equipment, Power & Energy, and industrial. In this article, we will share how each industry uses precision machined parts.
Automobile industry
The automotive and transportation industry is one of the largest users of CNC machined parts. Cars, trucks, vans and motorcycles all use precision metal parts. Vehicles require thousands of parts, which require high precision and durability.
CNC machining is ideal for many automotive parts because the parts need to be the same and made of hard metals such as steel and stainless steel. Many engine and transmission parts are CNC machined. Few manufacturing processes can match the precision and repeatability offered by CNC machining.
Electric vehicles play an important role in the development of CNC machining, as they require a large number of precision-machined parts.
Medical industry
Similar to the automotive industry, the medical industry requires parts with extremely tight tolerances. There is no room for error in the manufacture of life-saving equipment.
CNC machining provides the medical industry with precision parts, required materials, and fast manufacturing. CNC machines can use specific materials required by the medical industry, such as stainless steel, titanium and copper parts.
CNC machining is also an ideal choice to support crisis response. In early 2020, many CNC workshops shifted part of their work to manufacturing basic medical equipment such as parts for ventilators. CNC machines have a wide range of functions and can be easily programmed to make new parts.
Industrial equipment industry
CNC machines make parts for other manufacturing operations. The industrial sector includes packaging equipment, electronics and other general industrial equipment. Overall, the industry accounts for about 25% of CNC machined parts.
Industrial equipment often requires high-precision parts that can operate in high-stress environments. The consistency and custom machining capabilities offered by CNC machining are necessary for the industry.
Aerospace and defense industries
The aerospace industry is worth an estimated $300 billion and shows no signs of slowing down. We usually think of aerospace as = airplanes, but there are also thousands of satellites and rockets that require thousands of precision parts.
The aerospace and defense industry relies on CNC machining to manufacture complex precision parts that leave no margin for error. The tight tolerances, rapid prototyping and scalability of CNC machines are ideally suited to meet the needs of this industry.
Construction industry
The construction industry needs reliable, high-strength parts that can operate in harsh environments. CNC machine tools can process large and small metal parts needed for construction equipment.
CNC machining is the best manufacturing method for difficult metal alloys. High-strength steel alloys are commonly used to make parts for cranes, lifting equipment, bulldozers and other construction equipment. Gears, pump equipment, and high-strength fasteners are just a few examples of NC machined parts.
Energy industry
The gas, oil and energy industry is another huge market that relies on many #CNC machined components. Precision valves, bushings and sensor devices all require precision machined parts.
To keep vital energy infrastructure operating at peak efficiency, components need to fit perfectly together.
Parts used in harsh environments require high precision and high corrosion and heat resistance. Salt water and chemicals can destroy many metal parts, so the industry needs metals such as Hastelloy, which often require modern CNC machine tool cutting tools.
In general, CNC machining process plays an irreplaceable role in modern manufacturing industry, and its high precision, high efficiency and flexibility bring great development opportunities and competitive advantages to all walks of life. With the continuous progress of technology and the continuous expansion of applications, CNC machining technology will continue to play an important role in the future manufacturing industry, and make new contributions to the progress and development of human society.#Honscn #cnc
With the change of the development process environment, today's CNC machining machine tool technology has been constantly improving, today's we are already different from yesterday's we, the new era has put forward new challenges to us. What do we need to change to meet the challenge? What is needed is for us to continuously improve our perceptions, our capabilities, our methods and our actions.
1
/
The importance of product processing technology
The process of the internal structure of the product is closely related to the processing cost. The processing technology used by the product directly determines the production cost, and the processing efficiency and production capacity will also be affected by it.
From the perspective of product design, if the manufacturing threshold of processing technology can be fundamentally reduced, on this basis, certain processing costs can be reduced, and the processing CT time of CNC machine tools can be shortened, and the processing quality and processing quality can be improved. Efficiency can be improved. Can greatly improve the CNC machining capacity.
2
/
Tool life management control in CNC machining
The life management control of the tool by the CNC system is to calculate the number of tool machining, or to determine the processing time. Therefore, when the tool life reaches the expected number of machining times or time of the system, the CNC automatically stops the action. It is assumed that when manual supervision is not in place, or when the tool is not able to stop changing in the expected situation, the CNC machining process will be affected. Therefore, tool life is a key factor affecting CNC production capacity.
Especially when the CNC machining process of a workpiece is too much, the processing amount is cumbersome, and the dimensional accuracy of the processing is relatively strict, the tools to be used will be more. At this time, the CNC tool library automatically changes the tool, and the knife action is more frequent, and the tool wear is larger, so that the manual tool change and machine adjustment are more frequent.
Therefore, tool wear is an important indicator that affects the normal production rhythm and capacity of CNC. Through technical measures to improve the process, improve the overall life of the tool, not only can save the cost of the tool, but more importantly, can reduce the stopping time of the CNC spindle, so as to improve the efficiency of CNC processing, improve the production quality and capacity.
3
/
CNC optimization program and process parameters
In the process of confirming the product processing technology, it is necessary to fully consider all the functions of CNC CNC machine tools, to shorten the processing route, reduce the number of tool walking and tool changing times, so as to ensure that the processing capacity is improved.
By choosing a reasonable and appropriate cutting amount, give full play to the cutting performance of the tool, optimize the processing parameters of the CNC, ensure the high-speed machining of the spindle, reduce the CT time of parts processing, and ultimately improve the processing efficiency of the product and improve the production quality.
4
/
CNC machining process improvement
When writing CNC machining process, it is not only necessary to focus on the feasibility of processing, but also to consider whether the process of the processing process will have a negative effect on the processing efficiency. Effectively shorten the processing time of CNC CT and improve production capacity can be achieved by arranging a reasonable processing sequence and reducing the number of tool changes.
5
/
The production site is strictly controlled
The development and strict implementation of production SOP is an indispensable part of CNC machining production process. Manual operation behavior should be reasonably standardized to reduce employees' negative emotions and unnecessary waste of time efficiency. Formulate incentive policies to improve the enthusiasm of technicians, so as to achieve the purpose of improving production capacity and product processing quality.
6
/
CNC machining abnormal problem elimination
The inspection work needs to be comprehensive, such as the use of the cylinder, solenoid valve, motor and other electrical parts in the oil environment on the equipment and fixture condition, and the investigation of these parts before the operation can effectively avoid the situation that the production of CNC spindle is forced to stop, so as to improve the utilization rate of the spindle.
Machine iteration is expensive, but there are other methods we can use to do it at a very small cost in exchange for a high yield.
The high-quality management of CNC machining production should be put in the first place, and the above six points can effectively improve the production performance and capacity of the machine tool.
Six industries that rely on cnc machining
Modern CNC (computer numerical control) machines enable the manufacture of precision parts quickly and efficiently. CNC machines manufacture millions of parts around the world every day. All of these parts vary in size, material and purpose.
CNC machining is often used for metal parts and assemblies with complex designs and tight tolerances. Because of the precision and capability of CNC machining, it is one of the most demanding manufacturing methods.
These industries rely heavily on CNC machined parts: automotive, Aerospace & Defense, medical, construction equipment, Power & Energy, and industrial. In this article, we will share how each industry uses precision machined parts.
Automobile industry
The automotive and transportation industry is one of the largest users of CNC machined parts. Cars, trucks, vans and motorcycles all use precision metal parts. Vehicles require thousands of parts, which require high precision and durability.
CNC machining is ideal for many automotive parts because the parts need to be the same and made of hard metals such as steel and stainless steel. Many engine and transmission parts are CNC machined. Few manufacturing processes can match the precision and repeatability offered by CNC machining.
Electric vehicles play an important role in the development of CNC machining, as they require a large number of precision-machined parts.
Medical industry
Similar to the automotive industry, the medical industry requires parts with extremely tight tolerances. There is no room for error in the manufacture of life-saving equipment.
CNC machining provides the medical industry with precision parts, required materials, and fast manufacturing. CNC machines can use specific materials required by the medical industry, such as stainless steel, titanium and copper parts.
CNC machining is also an ideal choice to support crisis response. In early 2020, many CNC workshops shifted part of their work to manufacturing basic medical equipment such as parts for ventilators. CNC machines have a wide range of functions and can be easily programmed to make new parts.
Industrial equipment industry
CNC machines make parts for other manufacturing operations. The industrial sector includes packaging equipment, electronics and other general industrial equipment. Overall, the industry accounts for about 25% of CNC machined parts.
Industrial equipment often requires high-precision parts that can operate in high-stress environments. The consistency and custom machining capabilities offered by CNC machining are necessary for the industry.
Aerospace and defense industries
The aerospace industry is worth an estimated $300 billion and shows no signs of slowing down. We usually think of aerospace as = airplanes, but there are also thousands of satellites and rockets that require thousands of precision parts.
The aerospace and defense industry relies on CNC machining to manufacture complex precision parts that leave no margin for error. The tight tolerances, rapid prototyping and scalability of CNC machines are ideally suited to meet the needs of this industry.
Construction industry
The construction industry needs reliable, high-strength parts that can operate in harsh environments. CNC machine tools can process large and small metal parts needed for construction equipment.
CNC machining is the best manufacturing method for difficult metal alloys. High-strength steel alloys are commonly used to make parts for cranes, lifting equipment, bulldozers and other construction equipment. Gears, pump equipment, and high-strength fasteners are just a few examples of NC machined parts.
Energy industry
The gas, oil and energy industry is another huge market that relies on many #CNC machined components. Precision valves, bushings and sensor devices all require precision machined parts.
To keep vital energy infrastructure operating at peak efficiency, components need to fit perfectly together.
Parts used in harsh environments require high precision and high corrosion and heat resistance. Salt water and chemicals can destroy many metal parts, so the industry needs metals such as Hastelloy, which often require modern CNC machine tool cutting tools.
In general, CNC machining process plays an irreplaceable role in modern manufacturing industry, and its high precision, high efficiency and flexibility bring great development opportunities and competitive advantages to all walks of life. With the continuous progress of technology and the continuous expansion of applications, CNC machining technology will continue to play an important role in the future manufacturing industry, and make new contributions to the progress and development of human society.#Honscn #cnc
Thread machining is one of the very important applications of CNC machining center. The machining quality and efficiency of thread will directly affect the machining quality of parts and the production efficiency of machining center.With the improvement of the performance of CNC machining center and the improvement of cutting tools, the method of thread machining is also improving, and the accuracy and efficiency of thread machining are also gradually improving. In order to enable technicians to reasonably select thread processing methods in processing, improve production efficiency and avoid quality accidents, several thread processing methods commonly used in CNC machining center are summarized as follows:1. Tap processing method
1.1 classification and characteristics of tap processingUsing tap to process threaded hole is the most commonly used processing method. It is mainly applicable to threaded holes with small diameter (d30) and low requirements for hole position accuracy.
In the 1980s, the flexible tapping method was adopted for threaded holes, that is, the flexible tapping collet was used to clamp the tap. The tapping collet can be used for axial compensation to compensate the feed error caused by the non synchronization between the axial feed of the machine tool and the spindle speed, so as to ensure the correct pitch. The flexible tapping collet has complex structure, high cost, easy damage and low processing efficiency. In recent years, the performance of CNC machining center Gradually, the rigid tapping function has become the basic configuration of CNC machining center.
Therefore, rigid tapping has become the main method of thread machining.That is, the tap is clamped with a rigid spring collet, and the feed of the spindle is consistent with the spindle speed controlled by the machine tool.Compared with the flexible tapping chuck, the spring chuck has the advantages of simple structure, low price and wide application. In addition to holding the tap, it can also hold the end milling cutter, drill bit and other tools, which can reduce the tool cost. At the same time, the rigid tapping can be used for high-speed cutting, improve the use efficiency of the processing center and reduce the manufacturing cost.
1.2 determination of threaded bottom hole before tappingThe processing of threaded bottom hole has a great impact on the life of tap and the quality of thread processing. Generally, the diameter of threaded bottom hole drill is close to the upper limit of the diameter tolerance of threaded bottom hole,For example, the bottom hole diameter of M8 threaded hole is 6.7 0.27mm, select the drill bit diameter as 6.9mm. In this way, the machining allowance of tap can be reduced, the load of tap can be reduced, and the service life of tap can be improved.
1.3 selection of tapWhen selecting taps, first of all, the corresponding taps must be selected according to the processed materials. The tool company produces different types of taps according to different processing materials, and special attention should be paid to the selection.
Because the tap is very sensitive to the processed materials compared with the milling cutter and boring cutter. For example, using the tap for processing cast iron to process aluminum parts is easy to cause thread dropping, disorderly threading and even tap breaking, resulting in workpiece scrapping. Secondly, pay attention to the difference between the through-hole tap and the blind hole tap. The front-end guide of the through-hole tap is long, and the chip removal is the front-end chip. The front-end guide of the blind hole is short, and the chip removal is the front-end It is the back chip. Machining the blind hole with a through-hole tap cannot guarantee the thread machining depth. Moreover, if a flexible tapping collet is used, it should also be noted that the diameter of the tap handle and the width of the four sides should be the same as that of the tapping collet; the diameter of the tap handle for rigid tapping should be the same as that of the spring jacket. In short, only a reasonable selection of the tap can ensure the smooth machining.
1.4 NC programming of tap machiningThe programming of tap machining is relatively simple. Now the machining center generally solidifies the tapping subroutine and only needs to assign values to various parameters. However, it should be noted that the meaning of some parameters is different due to different NC systems and different subroutine formats.For example, the programming format of Siemens 840C control system is g84 x_y_r2_r3_r4_r5_r6_r7_r8_r9_r10_r13_. Only these 12 parameters need to be assigned during programming.
2. Thread milling method2.1 characteristics of thread millingThread milling adopts thread milling tool and three-axis linkage of machining center, that is, x-axis and y-axis arc interpolation and z-axis linear feed.
Thread milling is mainly used to process large hole threads and threaded holes of difficult to process materials. It mainly has the following characteristics:(1) high processing speed, high efficiency and high processing precision. The tool material is generally cemented carbide, with fast tool walking speed. The manufacturing precision of the tool is high, so the milling thread precision is high.(2) the milling tool has a wide range of application. As long as the pitch is the same, whether it is left-hand thread or right-hand thread, one tool can be used, which is conducive to reducing the tool cost.
(3) milling is easy to remove chips and cool, and the cutting condition is better than that of tap. It is especially suitable for thread processing of difficult to process materials such as aluminum, copper and stainless steel, especially for thread processing of large parts and components of precious materials, which can ensure the thread processing quality and workpiece safety.(4) because there is no tool front-end guide, it is suitable for machining blind holes with short thread bottom holes and holes without tool return grooves.2.2 classification of thread milling tools
Thread milling tools can be divided into two types, one is the machine clamp cemented carbide blade milling cutter, and the other is the integral cemented carbide milling cutter. The machine clamp cutter has a wide range of applications. It can process holes with thread depth less than the blade length or holes with thread depth greater than the blade length. The integral cemented carbide milling cutter is generally used to process holes with thread depth less than the tool length.2.3 NC programming of thread millingThe programming of thread milling tool is different from that of other tools. If the processing program is wrong, it is easy to cause tool damage or thread processing error. The following points should be paid attention to during programming:
(1) firstly, the threaded bottom hole shall be processed well, the small diameter hole shall be processed with a drill, and the larger hole shall be bored to ensure the accuracy of the threaded bottom hole.(2) when cutting in and cutting out the tool, the arc path shall be adopted, usually 1 / 2 turn, and 1 / 2 pitch shall be traveled in the z-axis direction to ensure the thread shape. The tool radius compensation value shall be brought in at this time.(3) the x-axis and y-axis circular arc shall be interpolated for one week, and the main shaft shall travel a pitch along the z-axis direction, otherwise the threads will be buckled disorderly.
(4) specific example program: the diameter of thread milling cutter is 16. The threaded hole is M48 1.5, the depth of threaded hole is 14.The processing procedure is as follows:(the procedure of threaded bottom hole is omitted, and the bottom hole shall be bored) G0 G90 g54 x0 y0g0 Z10 m3 s1400 m8g0 z-14.75 feed to the deepest thread G01 G41 x-16 Y0 F2000 move to the feed position, add radius compensation G03 x24 Y0 z-14 I20 J0 f500 cut in with 1 / 2 circle of arc G03 x24 Y0 Z0 I-24 J0 F400 cut the whole thread G03 x-16 Y0 z0.75 I-20 J0 f500 cut out with 1 / 2 circle of arc G01 G40 x0 Y0 return to the center and cancel radius compensation G0 Z100M30
3. Snap method3.1 characteristics of snap methodLarge threaded holes can sometimes be encountered on box parts. In the absence of tap and thread milling cutter, the method similar to lathe pick-up can be adopted.
Install the thread turning tool on the boring bar to bore the thread.The company once processed a batch of parts with m52x1.5 thread and 0.1mm positional degree (see Figure 1). Because of the high positional requirements and large thread hole, it is impossible to process with tap and there is no thread milling cutter. After the test, the thread picking method is adopted to ensure the processing requirements.3.2 precautions for buckle picking method
(1) after the spindle is started, there shall be a delay time to ensure that the spindle reaches the rated speed.(2) during tool retraction, if it is a hand ground thread tool, because the tool cannot be grinded symmetrically, reverse tool retraction cannot be adopted. The spindle orientation must be adopted, the tool moves radially, and then the tool retraction.(3) the manufacturing of the cutter bar must be accurate, especially the position of the cutter slot must be consistent. If it is inconsistent, multiple cutter bars cannot be used for processing, otherwise it will cause disorderly buckle.
(4) even if it is a very fine buckle, it cannot be picked with one knife, otherwise it will cause tooth loss and poor surface roughness. At least two knives shall be divided.(5) the processing efficiency is low, which is only applicable to single piece, small batch, special pitch thread and no corresponding tool.3.3 specific procedures
N5 G90 G54 G0 X0 Y0N10 Z15N15 S100 M3 M8
N20 G04 X5 delay to make the spindle reach the rated speedN25 G33 z-50 K1.5 turnbuckleN30 M19 spindle orientation
N35 G0 X-2 cutterN40 G0 z15 tool retractionEditing: JQ
1.1 classification and characteristics of tap processingUsing tap to process threaded hole is the most commonly used processing method. It is mainly applicable to threaded holes with small diameter (d30) and low requirements for hole position accuracy.
In the 1980s, the flexible tapping method was adopted for threaded holes, that is, the flexible tapping collet was used to clamp the tap. The tapping collet can be used for axial compensation to compensate the feed error caused by the non synchronization between the axial feed of the machine tool and the spindle speed, so as to ensure the correct pitch. The flexible tapping collet has complex structure, high cost, easy damage and low processing efficiency. In recent years, the performance of CNC machining center Gradually, the rigid tapping function has become the basic configuration of CNC machining center.
Therefore, rigid tapping has become the main method of thread machining.That is, the tap is clamped with a rigid spring collet, and the feed of the spindle is consistent with the spindle speed controlled by the machine tool.Compared with the flexible tapping chuck, the spring chuck has the advantages of simple structure, low price and wide application. In addition to holding the tap, it can also hold the end milling cutter, drill bit and other tools, which can reduce the tool cost. At the same time, the rigid tapping can be used for high-speed cutting, improve the use efficiency of the processing center and reduce the manufacturing cost.
1.2 determination of threaded bottom hole before tappingThe processing of threaded bottom hole has a great impact on the life of tap and the quality of thread processing. Generally, the diameter of threaded bottom hole drill is close to the upper limit of the diameter tolerance of threaded bottom hole,For example, the bottom hole diameter of M8 threaded hole is 6.7 0.27mm, select the drill bit diameter as 6.9mm. In this way, the machining allowance of tap can be reduced, the load of tap can be reduced, and the service life of tap can be improved.
1.3 selection of tapWhen selecting taps, first of all, the corresponding taps must be selected according to the processed materials. The tool company produces different types of taps according to different processing materials, and special attention should be paid to the selection.
Because the tap is very sensitive to the processed materials compared with the milling cutter and boring cutter. For example, using the tap for processing cast iron to process aluminum parts is easy to cause thread dropping, disorderly threading and even tap breaking, resulting in workpiece scrapping. Secondly, pay attention to the difference between the through-hole tap and the blind hole tap. The front-end guide of the through-hole tap is long, and the chip removal is the front-end chip. The front-end guide of the blind hole is short, and the chip removal is the front-end It is the back chip. Machining the blind hole with a through-hole tap cannot guarantee the thread machining depth. Moreover, if a flexible tapping collet is used, it should also be noted that the diameter of the tap handle and the width of the four sides should be the same as that of the tapping collet; the diameter of the tap handle for rigid tapping should be the same as that of the spring jacket. In short, only a reasonable selection of the tap can ensure the smooth machining.
1.4 NC programming of tap machiningThe programming of tap machining is relatively simple. Now the machining center generally solidifies the tapping subroutine and only needs to assign values to various parameters. However, it should be noted that the meaning of some parameters is different due to different NC systems and different subroutine formats.For example, the programming format of Siemens 840C control system is g84 x_y_r2_r3_r4_r5_r6_r7_r8_r9_r10_r13_. Only these 12 parameters need to be assigned during programming.
2. Thread milling method2.1 characteristics of thread millingThread milling adopts thread milling tool and three-axis linkage of machining center, that is, x-axis and y-axis arc interpolation and z-axis linear feed.
Thread milling is mainly used to process large hole threads and threaded holes of difficult to process materials. It mainly has the following characteristics:(1) high processing speed, high efficiency and high processing precision. The tool material is generally cemented carbide, with fast tool walking speed. The manufacturing precision of the tool is high, so the milling thread precision is high.(2) the milling tool has a wide range of application. As long as the pitch is the same, whether it is left-hand thread or right-hand thread, one tool can be used, which is conducive to reducing the tool cost.
(3) milling is easy to remove chips and cool, and the cutting condition is better than that of tap. It is especially suitable for thread processing of difficult to process materials such as aluminum, copper and stainless steel, especially for thread processing of large parts and components of precious materials, which can ensure the thread processing quality and workpiece safety.(4) because there is no tool front-end guide, it is suitable for machining blind holes with short thread bottom holes and holes without tool return grooves.2.2 classification of thread milling tools
Thread milling tools can be divided into two types, one is the machine clamp cemented carbide blade milling cutter, and the other is the integral cemented carbide milling cutter. The machine clamp cutter has a wide range of applications. It can process holes with thread depth less than the blade length or holes with thread depth greater than the blade length. The integral cemented carbide milling cutter is generally used to process holes with thread depth less than the tool length.2.3 NC programming of thread millingThe programming of thread milling tool is different from that of other tools. If the processing program is wrong, it is easy to cause tool damage or thread processing error. The following points should be paid attention to during programming:
(1) firstly, the threaded bottom hole shall be processed well, the small diameter hole shall be processed with a drill, and the larger hole shall be bored to ensure the accuracy of the threaded bottom hole.(2) when cutting in and cutting out the tool, the arc path shall be adopted, usually 1 / 2 turn, and 1 / 2 pitch shall be traveled in the z-axis direction to ensure the thread shape. The tool radius compensation value shall be brought in at this time.(3) the x-axis and y-axis circular arc shall be interpolated for one week, and the main shaft shall travel a pitch along the z-axis direction, otherwise the threads will be buckled disorderly.
(4) specific example program: the diameter of thread milling cutter is 16. The threaded hole is M48 1.5, the depth of threaded hole is 14.The processing procedure is as follows:(the procedure of threaded bottom hole is omitted, and the bottom hole shall be bored) G0 G90 g54 x0 y0g0 Z10 m3 s1400 m8g0 z-14.75 feed to the deepest thread G01 G41 x-16 Y0 F2000 move to the feed position, add radius compensation G03 x24 Y0 z-14 I20 J0 f500 cut in with 1 / 2 circle of arc G03 x24 Y0 Z0 I-24 J0 F400 cut the whole thread G03 x-16 Y0 z0.75 I-20 J0 f500 cut out with 1 / 2 circle of arc G01 G40 x0 Y0 return to the center and cancel radius compensation G0 Z100M30
3. Snap method3.1 characteristics of snap methodLarge threaded holes can sometimes be encountered on box parts. In the absence of tap and thread milling cutter, the method similar to lathe pick-up can be adopted.
Install the thread turning tool on the boring bar to bore the thread.The company once processed a batch of parts with m52x1.5 thread and 0.1mm positional degree (see Figure 1). Because of the high positional requirements and large thread hole, it is impossible to process with tap and there is no thread milling cutter. After the test, the thread picking method is adopted to ensure the processing requirements.3.2 precautions for buckle picking method
(1) after the spindle is started, there shall be a delay time to ensure that the spindle reaches the rated speed.(2) during tool retraction, if it is a hand ground thread tool, because the tool cannot be grinded symmetrically, reverse tool retraction cannot be adopted. The spindle orientation must be adopted, the tool moves radially, and then the tool retraction.(3) the manufacturing of the cutter bar must be accurate, especially the position of the cutter slot must be consistent. If it is inconsistent, multiple cutter bars cannot be used for processing, otherwise it will cause disorderly buckle.
(4) even if it is a very fine buckle, it cannot be picked with one knife, otherwise it will cause tooth loss and poor surface roughness. At least two knives shall be divided.(5) the processing efficiency is low, which is only applicable to single piece, small batch, special pitch thread and no corresponding tool.3.3 specific procedures
N5 G90 G54 G0 X0 Y0N10 Z15N15 S100 M3 M8
N20 G04 X5 delay to make the spindle reach the rated speedN25 G33 z-50 K1.5 turnbuckleN30 M19 spindle orientation
N35 G0 X-2 cutterN40 G0 z15 tool retractionEditing: JQ
1 Tool change of hat type magazineThe fixed address tool change mode is mostly adopted, and the tool number is fixed corresponding to the tool seat number. The tool change action is realized by the lateral movement of the tool magazine and the up and down movement of the spindle, which is referred to as the spindle tool change mode for short. Because it has no tool change manipulator, the tool selection action cannot be preselected before the tool change action. The tool change instruction and tool selection instruction are generally written in the same program segment, and the instruction format is as follows:M06 T
When the command is executed, the tool magazine first turns the tool holder corresponding to the tool number on the spindle to the tool change position, and switches the tool on the spindle back to the tool holder, and then the tool magazine turns the tool specified in the command to the tool change position and changes the spindle.For this tool magazine, even if TX x is executed before M06, the tool cannot be preselected, * the action of final tool selection is still executed when M06 is executed. If there is no TX X in front of M06, the system will give an alarm.2 Tool change of disc and chain magazine
Most of them use random address tool change mode. The corresponding relationship between tool number and tool seat number is random, but its corresponding relationship can be remembered by NC system. The tool change of this tool magazine depends on the manipulator. The action of the command and tool change is: the tool command TX controls the rotation of the tool magazine and turns the selected tool to the tool change working position, while the tool change command M06 controls the action of the tool change manipulator to realize the tool exchange between the spindle tool and the tool change position of the tool magazine. The tool selection command and tool change command can be in the same program segment or written separately. The actions corresponding to tool selection and tool change command can also be operated simultaneously or separately. The instruction format is as follows:
Tx x M06;When the command is executed, the tool magazine first turns the TX tool to the tool change position, and then the manipulator exchanges the tool of the tool magazine with the tool of the spindle to realize the purpose of changing the TX tool to the spindle.After reading the above two methods, it can be seen that method 2 overlaps the tool selection action with the machining action, so that when changing the tool, it is not necessary to select the tool and change the tool directly, which improves the work efficiency.
As mentioned earlier, the tool change command of the tool magazine is related to the machine tool manufacturer. For example, some tool magazines require that not only the Z axis must return to the tool change point, but also the Y axis must return to the tool change point. The program format is as follows:
When writing the instructions of tool selection and tool change in the same program section, the execution rules of tools from different manufacturers may also be different. If any, regardless of the writing order, the rules of tool selection and tool change shall be followed. Some rules stipulate that the tool selection command must be written before the tool change command is executed. Otherwise, the action is to change the tool first and then select the tool, as shown in the above program. In this case, if the tool selection command is not written before the M06 command is executed, the system will give an alarm.
When the command is executed, the tool magazine first turns the tool holder corresponding to the tool number on the spindle to the tool change position, and switches the tool on the spindle back to the tool holder, and then the tool magazine turns the tool specified in the command to the tool change position and changes the spindle.For this tool magazine, even if TX x is executed before M06, the tool cannot be preselected, * the action of final tool selection is still executed when M06 is executed. If there is no TX X in front of M06, the system will give an alarm.2 Tool change of disc and chain magazine
Most of them use random address tool change mode. The corresponding relationship between tool number and tool seat number is random, but its corresponding relationship can be remembered by NC system. The tool change of this tool magazine depends on the manipulator. The action of the command and tool change is: the tool command TX controls the rotation of the tool magazine and turns the selected tool to the tool change working position, while the tool change command M06 controls the action of the tool change manipulator to realize the tool exchange between the spindle tool and the tool change position of the tool magazine. The tool selection command and tool change command can be in the same program segment or written separately. The actions corresponding to tool selection and tool change command can also be operated simultaneously or separately. The instruction format is as follows:
Tx x M06;When the command is executed, the tool magazine first turns the TX tool to the tool change position, and then the manipulator exchanges the tool of the tool magazine with the tool of the spindle to realize the purpose of changing the TX tool to the spindle.After reading the above two methods, it can be seen that method 2 overlaps the tool selection action with the machining action, so that when changing the tool, it is not necessary to select the tool and change the tool directly, which improves the work efficiency.
As mentioned earlier, the tool change command of the tool magazine is related to the machine tool manufacturer. For example, some tool magazines require that not only the Z axis must return to the tool change point, but also the Y axis must return to the tool change point. The program format is as follows:
When writing the instructions of tool selection and tool change in the same program section, the execution rules of tools from different manufacturers may also be different. If any, regardless of the writing order, the rules of tool selection and tool change shall be followed. Some rules stipulate that the tool selection command must be written before the tool change command is executed. Otherwise, the action is to change the tool first and then select the tool, as shown in the above program. In this case, if the tool selection command is not written before the M06 command is executed, the system will give an alarm.
CNC machining refers to any process that uses a CNC machine. This could be for routing, milling, drilling, or other types of work that is done with metal, wood or other materials. This is a manufacturing process that uses the automatic opportunity from the computer to create shapes or forms that must be precise.
Raw materials are used and they are put into a CNC machine that uses cutting tools to make these shapes. The CNC machining process involves computers that have at least one microprocessor and several units for storage. With CAD or CAM software systems added to CNC the computer can be programmed to produce the precise movements that are able to create the part.
In CNC machining the process is automated which saves the operator time and saves the business money. The operator is able to load the materials, program the machine and then the machine can work without attention when set up properly; the amount of time it is run without attention is also programmed in.
An important aspect of any CNC machining is for the operator to know the machine well. CNC is an addition to the general aspects of the machine. As an example, if you are doing routing, adding CNC to the process only automates it. However, for the operator, it means that they must understand the machine, how to put in codes or use CAD or CAM and how to operate the machine; they must also understand how basic routing works.
Another area that is important in order to understand CNC machining is the basic components of the machine. It is important to know how these machines operate in order to fix them if something goes wrong. This also allows the operator to understand the limitations and the capabilities of the machine to get the most out of its use.
As CNC machining becomes a project the operator is in charge defining five areas. They will first think about the project they want to design and plan it out. This is where sitting down and drawing out plans will be a good idea.
The next area is to understand CAD to translate the drawing into the computer and then an understanding of CAM to translate the CAD information into machine language. In the final area the individual must understand the Controlling function in order to make the machine do what is required. When all these areas are fulfilled properly they allow the individual to create the project in the way they saw it in their drawing.
CNC machining was traditionally only done in commercial settings with very large CNC machines. Today, there are mini-CNC machines that allow the process to be done on a smaller scale in a home workshop. This has allowed the smaller business to be able to take advantage of building a variety of parts and products that were not previously available except on a larger scale.
CNC machining can produce both simple and complex designs and can be used on a variety of materials including aluminum, foam, wood and other metals.
Raw materials are used and they are put into a CNC machine that uses cutting tools to make these shapes. The CNC machining process involves computers that have at least one microprocessor and several units for storage. With CAD or CAM software systems added to CNC the computer can be programmed to produce the precise movements that are able to create the part.
In CNC machining the process is automated which saves the operator time and saves the business money. The operator is able to load the materials, program the machine and then the machine can work without attention when set up properly; the amount of time it is run without attention is also programmed in.
An important aspect of any CNC machining is for the operator to know the machine well. CNC is an addition to the general aspects of the machine. As an example, if you are doing routing, adding CNC to the process only automates it. However, for the operator, it means that they must understand the machine, how to put in codes or use CAD or CAM and how to operate the machine; they must also understand how basic routing works.
Another area that is important in order to understand CNC machining is the basic components of the machine. It is important to know how these machines operate in order to fix them if something goes wrong. This also allows the operator to understand the limitations and the capabilities of the machine to get the most out of its use.
As CNC machining becomes a project the operator is in charge defining five areas. They will first think about the project they want to design and plan it out. This is where sitting down and drawing out plans will be a good idea.
The next area is to understand CAD to translate the drawing into the computer and then an understanding of CAM to translate the CAD information into machine language. In the final area the individual must understand the Controlling function in order to make the machine do what is required. When all these areas are fulfilled properly they allow the individual to create the project in the way they saw it in their drawing.
CNC machining was traditionally only done in commercial settings with very large CNC machines. Today, there are mini-CNC machines that allow the process to be done on a smaller scale in a home workshop. This has allowed the smaller business to be able to take advantage of building a variety of parts and products that were not previously available except on a larger scale.
CNC machining can produce both simple and complex designs and can be used on a variety of materials including aluminum, foam, wood and other metals.
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