What Is Cemented Carbide Mold Parts Cnc Turned Parts?
cemented carbide mold parts cnc turned parts brings rising popularity and reputation to Honscn Co.,Ltd. We have experienced designers in the field. They have been keeping an eye on the industry dynamics, learning advanced creativity skills, and generating pioneering thinking. Their endless efforts result in the appealing appearance of the product, attracting many specialists to visit us. Quality guarantee is the other advantage of the product. It is designed conforming to the international standard and quality system. It is found that it has passed the ISO 9001 certification.
Quality is at the core of HONSCN's culture. Our team has deep expertise in providing the high quality products. Based upon a proven track record, we have been praised by customers in the industry, which helps foster our growth. We continue to work with different companies to acquire new concepts of products, creating higher customer satisfaction.
With a team of professional designers, we are able to design cemented carbide mold parts cnc turned parts and other products as requested. And we always confirm the design before producing. Customers will surely get what they want from Honscn.
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General steps of plastic parts designPlastic parts are designed on the basis of industrial modeling. First, see whether there are similar products for reference, and then carry out detailed functional decomposition of products and parts to determine the main process problems such as parts folding, wall thickness, demoulding slope, transition treatment between parts, connection treatment and strength treatment of parts.1. Similar reference
Before design, first look for similar products of the company and peers, what problems and deficiencies have occurred in the original products, and refer to the existing mature structure to avoid problematic structural forms.2. Determine the part discount, transition, connection and clearance treatment between partsUnderstand the modeling style from the modeling drawing and effect drawing, cooperate with the functional decomposition of the product, determine the number of parts (different surface states are either divided into different parts, or there must be over treatment between different surfaces), determine the over treatment between parts' surfaces, and determine the connection mode and fit clearance between parts.
3. Determination of part strength and connection strengthDetermine the wall thickness of the part body according to the product size. The strength of the part itself is determined by the wall thickness of the plastic part, the structural form (the plastic part in the shape of a flat plate has the worst strength), the stiffener and the stiffener. While determining the single strength of parts, the connection strength between parts must be determined. The methods to change the connection strength include: adding screw column, adding stop, adding buckle position and adding reinforcing bone against top and bottom.4. Determination of demoulding slope
The demoulding slope shall be comprehensively determined according to the material (PP, PE silica gel and rubber can be demoulded forcibly), surface state (the slope of decorative grain shall be greater than that of smooth surface, and the slope of etched surface shall be 0.5 degrees greater than that required by the template as far as possible, so as to ensure that the etched surface will not be damaged and improve the yield of products), transparency or not determines the demoulding slope of parts (the transparent slope shall be greater).Material types recommended by different product series of the companySurface treatment of plastic parts
Wall thickness selection of plastic partsFor plastic parts, the uniformity of wall thickness is required, and the workpiece with uneven wall thickness will have shrinkage traces. It is required that the ratio of stiffener to main wall thickness should be less than 0.4, and the maximum ratio should not exceed 0.6.Demoulding slope of plastic parts
In the construction of stereoscopic drawing, where the appearance and assembly are affected, the slope needs to be drawn, and the slope is generally not drawn for stiffeners.The demoulding slope of plastic parts is determined by the material, surface decoration status and whether the parts are transparent or not. The demoulding slope of hard plastic is greater than that of soft plastic. The higher the part, the deeper the hole, and the smaller the slope.Recommended demoulding slope for different materials
Numerical values of different accuracy in different size rangesDimensional accuracy of plastic partsGenerally, the accuracy of plastic parts is not high. In practical use, we mainly check the assembly dimensions, and mainly mark the overall dimensions, assembly dimensions and other dimensions that need to be controlled on the plan.
In practice, we mainly consider the consistency of dimensions. The edges of the upper and lower covers need to be aligned.Economic accuracy of different materialsNumerical values of different accuracy in different size ranges
Surface roughness of plastics1) The roughness of the etched surface cannot be marked. Where the plastic surface finish is particularly high, circle this range and mark the surface state as mirror.2) The surface of plastic parts is generally smooth and bright, and the surface roughness is generally ra2.5 0.2um.
3) The surface roughness of plastic mainly depends on the surface roughness of mold cavity. The surface roughness of mold is required to be one to two levels higher than that of plastic parts. The mold surface can reach ra0.05 by ultrasonic and electrolytic polishing.FilletThe fillet value of injection molding is determined by the adjacent wall thickness, generally 0.5 1.5 times of the wall thickness, but not less than 0.5mm.
The position of the parting surface shall be carefully selected. There is a fillet on the parting surface, and the fillet part shall be on the other side of the die. It is difficult to make, and there are fine trace lines at the fillet. However, fillet is required when anti cutting hand is required.Stiffener problemThe injection molding process is similar to the casting process. The non-uniformity of wall thickness will produce shrinkage defects. Generally, the wall thickness of reinforcement is 0.4 times of the main body thickness, and the maximum is no more than 0.6 times. The spacing between bars is greater than 4T, and the height of bars is less than 3T. In the method of improving the strength of parts, it is generally reinforced without increasing the wall thickness.
The reinforcement of the screw column shall be at least 1.0mm lower than the end face of the column, and the reinforcement shall be at least 1.0mm lower than the part surface or the parting surface.When multiple bars intersect, pay attention to the non-uniformity of wall thickness caused by the intersection.Design of stiffeners for plastic parts
Bearing surfacePlastic is easy to deform. In terms of positioning, it should be classified as the positioning of wool embryo. In terms of positioning area, it should be small. For example, the support of plane should be changed into small convex points and convex rings.Oblique roof and row position
The inclined top and row position move in the parting direction and perpendicular to the parting direction. The inclined top and row position shall be perpendicular to the parting direction, and there shall be sufficient movement space, as shown in the following figure:Treatment of plastic limit process problems1) Special treatment of wall thickness
For particularly large workpieces, such as the shell of toy cars, the wall thickness can be relatively thin by using the method of multi-point glue feeding. The local glue position of the column is thick, which is treated as shown in the following figure.Special treatment of wall thickness2) Treatment of small slope and vertical surface
The die surface has high dimensional accuracy, high surface finish, small demoulding resistance and small demoulding slope. In order to achieve this purpose, the parts with small inclination of the workpiece are inserted separately, and the inserts are processed by wire cutting and grinding, as shown in the figure below.To ensure that the side wall is vertical, the running position or inclined top is required. There is an interface line at the running position. In order to avoid obvious interface, the wiring is generally placed at the junction of fillet and large surface.Treatment of small slope and vertical surface
To ensure that the side wall is vertical, the running position or inclined top is required. There is an interface line at the running position. In order to avoid obvious interface, the wiring is generally placed at the junction of fillet and large surface.Problems often to be solved for plastic parts1) Transition processing problem
The accuracy of plastic parts is generally not high. There must be transition treatment between adjacent parts and different surfaces of the same part.Small grooves are generally used for transition between different surfaces of the same part, and small grooves and high-low staggered surfaces can be used between different parts, as shown in the figure.Surface over treatment
2) Clearance value of plastic partsParts are directly assembled without movement, generally 0.1mm;The seam is generally 0.15mm;
The minimum clearance between parts without contact is 0.3mm, generally 0.5mm.3) The common forms and clearance of plastic parts are shown in the figureCommon forms and clearance taking method of stop of plastic parts
Before design, first look for similar products of the company and peers, what problems and deficiencies have occurred in the original products, and refer to the existing mature structure to avoid problematic structural forms.2. Determine the part discount, transition, connection and clearance treatment between partsUnderstand the modeling style from the modeling drawing and effect drawing, cooperate with the functional decomposition of the product, determine the number of parts (different surface states are either divided into different parts, or there must be over treatment between different surfaces), determine the over treatment between parts' surfaces, and determine the connection mode and fit clearance between parts.
3. Determination of part strength and connection strengthDetermine the wall thickness of the part body according to the product size. The strength of the part itself is determined by the wall thickness of the plastic part, the structural form (the plastic part in the shape of a flat plate has the worst strength), the stiffener and the stiffener. While determining the single strength of parts, the connection strength between parts must be determined. The methods to change the connection strength include: adding screw column, adding stop, adding buckle position and adding reinforcing bone against top and bottom.4. Determination of demoulding slope
The demoulding slope shall be comprehensively determined according to the material (PP, PE silica gel and rubber can be demoulded forcibly), surface state (the slope of decorative grain shall be greater than that of smooth surface, and the slope of etched surface shall be 0.5 degrees greater than that required by the template as far as possible, so as to ensure that the etched surface will not be damaged and improve the yield of products), transparency or not determines the demoulding slope of parts (the transparent slope shall be greater).Material types recommended by different product series of the companySurface treatment of plastic parts
Wall thickness selection of plastic partsFor plastic parts, the uniformity of wall thickness is required, and the workpiece with uneven wall thickness will have shrinkage traces. It is required that the ratio of stiffener to main wall thickness should be less than 0.4, and the maximum ratio should not exceed 0.6.Demoulding slope of plastic parts
In the construction of stereoscopic drawing, where the appearance and assembly are affected, the slope needs to be drawn, and the slope is generally not drawn for stiffeners.The demoulding slope of plastic parts is determined by the material, surface decoration status and whether the parts are transparent or not. The demoulding slope of hard plastic is greater than that of soft plastic. The higher the part, the deeper the hole, and the smaller the slope.Recommended demoulding slope for different materials
Numerical values of different accuracy in different size rangesDimensional accuracy of plastic partsGenerally, the accuracy of plastic parts is not high. In practical use, we mainly check the assembly dimensions, and mainly mark the overall dimensions, assembly dimensions and other dimensions that need to be controlled on the plan.
In practice, we mainly consider the consistency of dimensions. The edges of the upper and lower covers need to be aligned.Economic accuracy of different materialsNumerical values of different accuracy in different size ranges
Surface roughness of plastics1) The roughness of the etched surface cannot be marked. Where the plastic surface finish is particularly high, circle this range and mark the surface state as mirror.2) The surface of plastic parts is generally smooth and bright, and the surface roughness is generally ra2.5 0.2um.
3) The surface roughness of plastic mainly depends on the surface roughness of mold cavity. The surface roughness of mold is required to be one to two levels higher than that of plastic parts. The mold surface can reach ra0.05 by ultrasonic and electrolytic polishing.FilletThe fillet value of injection molding is determined by the adjacent wall thickness, generally 0.5 1.5 times of the wall thickness, but not less than 0.5mm.
The position of the parting surface shall be carefully selected. There is a fillet on the parting surface, and the fillet part shall be on the other side of the die. It is difficult to make, and there are fine trace lines at the fillet. However, fillet is required when anti cutting hand is required.Stiffener problemThe injection molding process is similar to the casting process. The non-uniformity of wall thickness will produce shrinkage defects. Generally, the wall thickness of reinforcement is 0.4 times of the main body thickness, and the maximum is no more than 0.6 times. The spacing between bars is greater than 4T, and the height of bars is less than 3T. In the method of improving the strength of parts, it is generally reinforced without increasing the wall thickness.
The reinforcement of the screw column shall be at least 1.0mm lower than the end face of the column, and the reinforcement shall be at least 1.0mm lower than the part surface or the parting surface.When multiple bars intersect, pay attention to the non-uniformity of wall thickness caused by the intersection.Design of stiffeners for plastic parts
Bearing surfacePlastic is easy to deform. In terms of positioning, it should be classified as the positioning of wool embryo. In terms of positioning area, it should be small. For example, the support of plane should be changed into small convex points and convex rings.Oblique roof and row position
The inclined top and row position move in the parting direction and perpendicular to the parting direction. The inclined top and row position shall be perpendicular to the parting direction, and there shall be sufficient movement space, as shown in the following figure:Treatment of plastic limit process problems1) Special treatment of wall thickness
For particularly large workpieces, such as the shell of toy cars, the wall thickness can be relatively thin by using the method of multi-point glue feeding. The local glue position of the column is thick, which is treated as shown in the following figure.Special treatment of wall thickness2) Treatment of small slope and vertical surface
The die surface has high dimensional accuracy, high surface finish, small demoulding resistance and small demoulding slope. In order to achieve this purpose, the parts with small inclination of the workpiece are inserted separately, and the inserts are processed by wire cutting and grinding, as shown in the figure below.To ensure that the side wall is vertical, the running position or inclined top is required. There is an interface line at the running position. In order to avoid obvious interface, the wiring is generally placed at the junction of fillet and large surface.Treatment of small slope and vertical surface
To ensure that the side wall is vertical, the running position or inclined top is required. There is an interface line at the running position. In order to avoid obvious interface, the wiring is generally placed at the junction of fillet and large surface.Problems often to be solved for plastic parts1) Transition processing problem
The accuracy of plastic parts is generally not high. There must be transition treatment between adjacent parts and different surfaces of the same part.Small grooves are generally used for transition between different surfaces of the same part, and small grooves and high-low staggered surfaces can be used between different parts, as shown in the figure.Surface over treatment
2) Clearance value of plastic partsParts are directly assembled without movement, generally 0.1mm;The seam is generally 0.15mm;
The minimum clearance between parts without contact is 0.3mm, generally 0.5mm.3) The common forms and clearance of plastic parts are shown in the figureCommon forms and clearance taking method of stop of plastic parts
As a machine tool mainly used to process box and shell parts, the machining center is worth hundreds of thousands to millions. It is generally the key equipment in the key processes of the enterprise. Once the machine is shut down, the loss is often great. Therefore, in order to give full play to the benefits of the machine tool, we must pay attention to the maintenance and repair work. Because most of the daily electrical faults of CNC machine tools are electrical faults, electrical maintenance and repair are more important.1) CNC system control part2) Servo motor and spindle motor
Focus on noise and temperature rise. If the noise or temperature rise is too large, find out whether it is a mechanical problem such as bearing or the parameter setting of its matching amplifier, and take corresponding measures to solve it. For example, if there is abnormal sound during the movement of the servo shaft, and there is no obvious parameter change after verification, it is suspected that the mechanical noise may be caused by the lead screw, coupling and non concentricity with the servo motor. Disconnect the motor from the coupling and operate the motor separately. If the motor still has noise, adjust the speed loop gain and position loop gain appropriately, Make the motor silent. If there is no noise, judge that it is the concentricity between the lead screw and the coupling, re correct the concentricity, and then connect with the motor. The problem can be eliminated.
3) Measurement feedback elementIncluding encoder, grating ruler, etc., check whether the connection of detection elements is loose and whether they are polluted by oil or dust.4) Electrical control part
Check whether the three-phase power supply voltage is normal; Check whether the electrical components are well connected; Check whether various switches are effective with the aid of CRT display diagnosis screen; Check whether all relays and contactors work normally and whether the contacts are in good condition; Whether the thermal relay, arc suppressor and other protective elements are effective; Check whether the temperature of components inside the electrical cabinet is too high. For poor contact of contactor contact, the contactor can be disassembled, the high-temperature oxide on the contact surface can be scraped off with a small file, then the sundries can be wiped out with absorbent cotton and alcohol, reassembled, and then the contact can be conducted with a multimeter.
5) Improve utilization
If the machining center is idle for a long time, when it needs to be used, first of all, each moving link of the machine tool will affect its static and dynamic transmission performance due to grease solidification, dust and even rust, reduce the accuracy of the machine tool, and the blockage of the oil circuit system is a big trouble; From the electrical point of view, the electrical control system hardware is composed of tens of thousands of electronic components, and their performance and life are very discrete. If it is not used for a long time, when power is suddenly transmitted, the components will be damaged in high current and strong voltage. Therefore, in a period of time without machining task, it is best to run the machine tool at a low speed, and at least power on the NC system frequently, or even every day.
I have encountered this situation: a horizontal machining center, using FANUC system. After running the warm-up program, it processed and found that the qualified parts were processed in the morning, and the processed parts were unqualified by noon. After inspection by the on-site processing personnel, the positioning and fixture on the machine tool are not deformed or loose. However, when the spindle box is not processed and stationary, it will deviate downward by 0.1mm along the direction of the gravity axis. The technician judges that the temperature compensation fails or the temperature sensor has poor contact. However, the phenomenon still occurs after replacing the temperature sensor and temperature module and re entering CNC parameters and temperature compensation parameters. After expert consultation, it was finally found that it was not the sensor problem, but that there was a 2-meter-long and 1-meter-wide skylight facing the main shaft and column on the machine tool. At noon, the sun directly shines on the main shaft and column, resulting in thermal deformation. After the skylight is covered, the spindle box returns to normal. This is a typical maintenance error caused by improper maintenance. Therefore, proper daily maintenance provides convenience for overall maintenance in the future.
Focus on noise and temperature rise. If the noise or temperature rise is too large, find out whether it is a mechanical problem such as bearing or the parameter setting of its matching amplifier, and take corresponding measures to solve it. For example, if there is abnormal sound during the movement of the servo shaft, and there is no obvious parameter change after verification, it is suspected that the mechanical noise may be caused by the lead screw, coupling and non concentricity with the servo motor. Disconnect the motor from the coupling and operate the motor separately. If the motor still has noise, adjust the speed loop gain and position loop gain appropriately, Make the motor silent. If there is no noise, judge that it is the concentricity between the lead screw and the coupling, re correct the concentricity, and then connect with the motor. The problem can be eliminated.
3) Measurement feedback elementIncluding encoder, grating ruler, etc., check whether the connection of detection elements is loose and whether they are polluted by oil or dust.4) Electrical control part
Check whether the three-phase power supply voltage is normal; Check whether the electrical components are well connected; Check whether various switches are effective with the aid of CRT display diagnosis screen; Check whether all relays and contactors work normally and whether the contacts are in good condition; Whether the thermal relay, arc suppressor and other protective elements are effective; Check whether the temperature of components inside the electrical cabinet is too high. For poor contact of contactor contact, the contactor can be disassembled, the high-temperature oxide on the contact surface can be scraped off with a small file, then the sundries can be wiped out with absorbent cotton and alcohol, reassembled, and then the contact can be conducted with a multimeter.
5) Improve utilization
If the machining center is idle for a long time, when it needs to be used, first of all, each moving link of the machine tool will affect its static and dynamic transmission performance due to grease solidification, dust and even rust, reduce the accuracy of the machine tool, and the blockage of the oil circuit system is a big trouble; From the electrical point of view, the electrical control system hardware is composed of tens of thousands of electronic components, and their performance and life are very discrete. If it is not used for a long time, when power is suddenly transmitted, the components will be damaged in high current and strong voltage. Therefore, in a period of time without machining task, it is best to run the machine tool at a low speed, and at least power on the NC system frequently, or even every day.
I have encountered this situation: a horizontal machining center, using FANUC system. After running the warm-up program, it processed and found that the qualified parts were processed in the morning, and the processed parts were unqualified by noon. After inspection by the on-site processing personnel, the positioning and fixture on the machine tool are not deformed or loose. However, when the spindle box is not processed and stationary, it will deviate downward by 0.1mm along the direction of the gravity axis. The technician judges that the temperature compensation fails or the temperature sensor has poor contact. However, the phenomenon still occurs after replacing the temperature sensor and temperature module and re entering CNC parameters and temperature compensation parameters. After expert consultation, it was finally found that it was not the sensor problem, but that there was a 2-meter-long and 1-meter-wide skylight facing the main shaft and column on the machine tool. At noon, the sun directly shines on the main shaft and column, resulting in thermal deformation. After the skylight is covered, the spindle box returns to normal. This is a typical maintenance error caused by improper maintenance. Therefore, proper daily maintenance provides convenience for overall maintenance in the future.
Plastic parts are produced through a process known as custom plastic extraction. This is a manufacturing process where raw plastic materials are melted down and formed into the desired plastic parts. Before you choose a manufacturer for your custom parts, you must consider things like capabilities and production capacitates because they can vary greatly from one manufacturer to the other. Here are some of the factors you should consider.
Strategic Plan You should consider whether or not you are looking for a long term relationship. You need to locate a good cultural and strategic fit. Do your due diligence and take your time in uncovering a manufacturers professional reputation in that industry. During your research, don't just look at the positive reviews to determine how good they are, look for the red flags and see how bad things can get.
The Process Type Different manufacturers use different manufacturing processes that include extrusion, co-extrusion, tri-extrusion as well as crosshead extrusion coatings.
The Plastic Materials The plastic extrusion materials are used in different applications and each of them has their unique properties. One of the most important aspects of hiring a manufacturer is considering the extrusion materials they use for the custom parts. You have to be sure that the parts will be manufactured successfully and will perform as properly as is expected. In case you are not sure about the kind of plastic extrusion materials that would be best for your parts, an engineer can assist you in that area. There are also numerous grade types for the extrudable materials so you should choose a company that can produce the grade you need.
Capabilities If you have a significant production volume requirement, it is essential to know the production capabilities of the manufacturer. The manufacturer should also be able to provide you with extensive capabilities in terms of the design, tooling and fabrication. With these plastic extrusion capabilities, a manufacturer is able to produce high quality custom parts that meet the requirements of their customers. The finishes should be considered as well as they could be matt, glossy or textured. That means your custom plastic parts manufacturer should know about the latest finishes in the market.
Tooling Custom plastic extrusion needs tooling, which is a lot cheaper compared to injection molding. A quality extrusion manufactures ought to offer you state of the art tooling capabilities. They should have an experienced team that designs, engineers and tests all tooling. This will improve productivity, efficiency, safety and reduce costs.
Customer Service When working with any manufacturer, the process will become easier if they have working customer services that communicate effectively. A great manufacturing company is determined by the quality of customer services they offer. If for instance you have any last minute requests or want to change your order, you need to know that someone will be there to attend to you and support you. This will be more important if you are looking for a long term relationship. For it to be successful custom plastic parts manufacturer there needs to be helpful and pleasant customer service.
Conclusion You must consider these things when you are looking for the right manufacturer. As long as you evaluate their previous work and ensure they can provide you with all your requirements at a reasonable price, you will find a good company to work with.
Strategic Plan You should consider whether or not you are looking for a long term relationship. You need to locate a good cultural and strategic fit. Do your due diligence and take your time in uncovering a manufacturers professional reputation in that industry. During your research, don't just look at the positive reviews to determine how good they are, look for the red flags and see how bad things can get.
The Process Type Different manufacturers use different manufacturing processes that include extrusion, co-extrusion, tri-extrusion as well as crosshead extrusion coatings.
The Plastic Materials The plastic extrusion materials are used in different applications and each of them has their unique properties. One of the most important aspects of hiring a manufacturer is considering the extrusion materials they use for the custom parts. You have to be sure that the parts will be manufactured successfully and will perform as properly as is expected. In case you are not sure about the kind of plastic extrusion materials that would be best for your parts, an engineer can assist you in that area. There are also numerous grade types for the extrudable materials so you should choose a company that can produce the grade you need.
Capabilities If you have a significant production volume requirement, it is essential to know the production capabilities of the manufacturer. The manufacturer should also be able to provide you with extensive capabilities in terms of the design, tooling and fabrication. With these plastic extrusion capabilities, a manufacturer is able to produce high quality custom parts that meet the requirements of their customers. The finishes should be considered as well as they could be matt, glossy or textured. That means your custom plastic parts manufacturer should know about the latest finishes in the market.
Tooling Custom plastic extrusion needs tooling, which is a lot cheaper compared to injection molding. A quality extrusion manufactures ought to offer you state of the art tooling capabilities. They should have an experienced team that designs, engineers and tests all tooling. This will improve productivity, efficiency, safety and reduce costs.
Customer Service When working with any manufacturer, the process will become easier if they have working customer services that communicate effectively. A great manufacturing company is determined by the quality of customer services they offer. If for instance you have any last minute requests or want to change your order, you need to know that someone will be there to attend to you and support you. This will be more important if you are looking for a long term relationship. For it to be successful custom plastic parts manufacturer there needs to be helpful and pleasant customer service.
Conclusion You must consider these things when you are looking for the right manufacturer. As long as you evaluate their previous work and ensure they can provide you with all your requirements at a reasonable price, you will find a good company to work with.
Keeping your manufacturing and operational cost the minimum is the key to sustain in high competitive market and stay profit making. Equally, you've to supply your customers with the finest quality products that can challenge your rivals. Managing all these prerequisites is really challenging for small to big businesses today, and this is where most manufacturing units think of outsourcing CNC machining services from specialist shops. Being in manufacturing or fabrication business with great clientele counting aerospace, mining, defense, shipping, engineering and others, outsourcing your day to day CNC machining necessities generates a solid business prospect. When you're focused on different business and require CNC machined parts as a part of your manufacturing need, it doesn't make sense to owning a CNC machine with huge investment or hire expertise; instead, think of hiring CNC machining services, the way the business world thinks today. Why Outsource CNC Machines Services? Accessing Expertise The biggest benefit of outsourcing CNC machining services that inspires MNCs to SMEs is its easy access to expertise with no special investment for machineries or manpower. Contextually, here you're basically tapping and incorporating the know-how of a CNC machining shop in your supplies to make them superior. The machining shop uses the sophisticated series of CNC or Computer Numerical Control which can manipulate everything like milling, lathing, drilling, pressing, or finishing with the help of computerized system ensuring accuracy, speed, and uniformity of product finishes. Outsourcing expert services, thus, ensures you to execute supplies exactly as per the specs your customers require. Upholding Accuracy and Speed Maintaining absolute accuracy has been crucial to keep your customers satisfied since most industries today cannot even spare even a negligible error, which is obvious with human labors. CNC is designed to continue accuracy level by .99999 % once the design and program is fed into computer by a skilled CNC technician. Minimal fault during production means no wastage while you can cater any volume of supply and within the delivery schedule to your customers prepared with your CNC machining services. Reduced Labor Cost and Peaceful Production With CNC machining services, you don't have to depend on manual labor oriented companies or employ indoor labors. First of all, this helps you save a lot on labor cost while you get complete finishing solution including shearing, welding, framing, cutting or punching holes expending minimum on fabrication. Those who are still depended on manual labors know; how challenging it is to maintaining customer services with issues like labors on leave, sick, on vacation or labor disputes etc. No denying, your clients are least bothered about your labor issues and wants their deliveries on time with best finishes. Versatility with Increased Market All you need from your specialist CNC machining services is precision components as per your clients need. The biggest benefit of working with a CNC machine shop is they are masters to dispense any kind of sheet metal, fiber, or plastic finishes irrespective of how complex is the shape or design and amount of your order. Since everything is done by CNC machines, once the specs of your order is programmed and fed, the job is virtually finished. With increased versatility and capability , you can go ahead with new market possibilities.
It is said that in the career of a machine tool worker, no matter how careful it is, it is impossible to avoid a knife collision accident.This has nothing to do with whether the worker is serious and practical and stable, just like a person can not avoid mistakes in the growth process, in the growth process of a machine tool worker, the knife seems to be a hurdle that cannot be bypassing.
Bumping tool, refers to the tool in the process of moving with the workpiece, chuck or tailstock accidental collision machine accident, is the most likely accident for CNC lathe operation novices.
Knife collision will cause workpiece scrap, tool damage, serious damage to the accuracy of the machine tool, destroy the machine parts, and even endanger the personal safety of the machine tool processing personnel.
The occurrence of knife collision accidents is mainly caused by programming errors in the programming process or workers' operational errors in the processing link.
For workers, the general programming link is not easy to make mistakes, and many people have knife collision accidents, often caused by mistakes in the process of machine tool operation.
Because the CNC machining center is locked by software, in the simulation processing, when the automatic operation button is pressed, it is not intuitive to see whether the machine is locked in the simulation interface.
There is often no tool in the simulation, and if the machine tool is not locked to run, it is easy to bump the knife.
Therefore, before the simulation processing should go to the running interface to confirm whether the machine is locked.
Why do CNC machining centers bump knives?
1. Forget to turn off the empty running switch during processing.
Because in the program simulation, in order to save time, the empty run switch is often turned on.
Empty operation means that all moving axes of the machine are running at the speed of G00.
If the operation switch is not turned off during the processing time, the machine tool ignores the given feed speed, and runs at the speed of G00, resulting in knife and machine tool accidents.
2. No reference point is returned after running the simulation empty.
In the verification program when the machine is locked motionless, and the tool relative to the workpiece processing in the simulation operation (absolute coordinates and relative coordinates change), then the coordinates do not match the actual position, must use the method of returning the reference point to ensure that the mechanical zero coordinates are consistent with the absolute and relative coordinates.
If the machining operation is carried out without finding the problem after the verification procedure, it will cause the collision of the tool.
3. The direction of overshoot release is not correct.
When the machine overruns, it should press and hold the overruns release button, and move in the opposite direction manually or by hand, that is, it can be eliminated.
However, if the direction of lifting is reversed, it will cause damage to the machine tool.
Because when the overrange release is pressed, the overrange protection of the machine tool will not work, and the stroke switch of the overrange protection is already at the end of the stroke.
At this time, it is possible to cause the workbench to continue to move in the direction of excess, and eventually pull the lead screw, causing damage to the machine tool.
4. The cursor position of the specified line is incorrect.
When a specified line is run, it is usually executed downward from the cursor position.
For the lathe, it is necessary to call the tool offset value of the tool used, if the tool is not called, the tool running the program segment may not be the desired tool, and it is very likely to cause a collision accident due to different tools.
Of course, in the machining center, CNC milling machine must first call the coordinate system such as G54 and the length compensation value of the knife.
Because the length compensation value of each knife is not the same, it is possible to cause knife collision if it is not called.
As a high-precision machine tool, anti-collision is very necessary, requiring the operator to develop the habit of being careful and careful, operating the machine tool according to the correct method, and reducing the occurrence of machine tool collision.
With the development of technology, advanced technologies such as tool damage detection, machine tool anti-impact detection, and machine tool adaptive processing have emerged during processing, which can better protect CNC machine tools.
There are 9 reasons for this:
(1) Programming error
The process arrangement is wrong, the process undertaking relationship is not carefully considered, and the parameter setting is wrong.
Example :
A. The coordinate is set to zero at the base, but the top is 0 in practice;
B. The safety height is too low, resulting in the tool can not completely lift out the workpiece;
C. The second opening margin is less than the previous knife;
D. After the program is written, the path of the program should be analyzed and checked;
(2) Program single remarks error
Example:
A. The number of unilateral touches is written in four sides;
B. The clamping distance of the vise or the protruding distance of the workpiece is wrong;
C. The extension length of the tool is unknown or wrong, resulting in knife collision;
D. Procedure sheet should be as detailed as possible;
E. The principle of new for old should be adopted when the procedure is changed:Destroy the old program.
(3) Tool measurement error
Example:
A. The tool bar is not considered in the tool data input;
B. The tool is too short;
C. Tool measurement should use scientific methods, as far as possible with more accurate instruments;
D. The length of the tool should be 2-5mm longer than the actual depth.
(4) Program transmission error
Program number call error or program modification, but still use the old program processing; The site processor must check the detailed data of the program before processing; For example, the time and date the program was written and simulated with bear.
(5) Wrong knife selection
(6) the blank exceeds expectations, and the blank is too large and does not conform to the blank set by the program
(7) The workpiece material itself has defects or high hardness
(8) clamping factors, pad interference and the procedure is not considered
(9) Machine tool failure, sudden power failure, lightning strike caused tool collision, etc
Honscn has more than ten years of cnc machining experience, specializing in cnc machining, hardware mechanical parts processing, automation equipment parts processing. Robot parts processing, UAV parts processing, bicycle parts processing, medical parts processing, etc. It is one of the high-quality suppliers of cnc machining. At present, the company has more than 20 sets of cnc machining centers, grinding machines, milling machines, high-quality high-precision testing equipment, to provide customers with precision and high-quality cnc spare parts processing services.
Bumping tool, refers to the tool in the process of moving with the workpiece, chuck or tailstock accidental collision machine accident, is the most likely accident for CNC lathe operation novices.
Knife collision will cause workpiece scrap, tool damage, serious damage to the accuracy of the machine tool, destroy the machine parts, and even endanger the personal safety of the machine tool processing personnel.
The occurrence of knife collision accidents is mainly caused by programming errors in the programming process or workers' operational errors in the processing link.
For workers, the general programming link is not easy to make mistakes, and many people have knife collision accidents, often caused by mistakes in the process of machine tool operation.
Because the CNC machining center is locked by software, in the simulation processing, when the automatic operation button is pressed, it is not intuitive to see whether the machine is locked in the simulation interface.
There is often no tool in the simulation, and if the machine tool is not locked to run, it is easy to bump the knife.
Therefore, before the simulation processing should go to the running interface to confirm whether the machine is locked.
Why do CNC machining centers bump knives?
1. Forget to turn off the empty running switch during processing.
Because in the program simulation, in order to save time, the empty run switch is often turned on.
Empty operation means that all moving axes of the machine are running at the speed of G00.
If the operation switch is not turned off during the processing time, the machine tool ignores the given feed speed, and runs at the speed of G00, resulting in knife and machine tool accidents.
2. No reference point is returned after running the simulation empty.
In the verification program when the machine is locked motionless, and the tool relative to the workpiece processing in the simulation operation (absolute coordinates and relative coordinates change), then the coordinates do not match the actual position, must use the method of returning the reference point to ensure that the mechanical zero coordinates are consistent with the absolute and relative coordinates.
If the machining operation is carried out without finding the problem after the verification procedure, it will cause the collision of the tool.
3. The direction of overshoot release is not correct.
When the machine overruns, it should press and hold the overruns release button, and move in the opposite direction manually or by hand, that is, it can be eliminated.
However, if the direction of lifting is reversed, it will cause damage to the machine tool.
Because when the overrange release is pressed, the overrange protection of the machine tool will not work, and the stroke switch of the overrange protection is already at the end of the stroke.
At this time, it is possible to cause the workbench to continue to move in the direction of excess, and eventually pull the lead screw, causing damage to the machine tool.
4. The cursor position of the specified line is incorrect.
When a specified line is run, it is usually executed downward from the cursor position.
For the lathe, it is necessary to call the tool offset value of the tool used, if the tool is not called, the tool running the program segment may not be the desired tool, and it is very likely to cause a collision accident due to different tools.
Of course, in the machining center, CNC milling machine must first call the coordinate system such as G54 and the length compensation value of the knife.
Because the length compensation value of each knife is not the same, it is possible to cause knife collision if it is not called.
As a high-precision machine tool, anti-collision is very necessary, requiring the operator to develop the habit of being careful and careful, operating the machine tool according to the correct method, and reducing the occurrence of machine tool collision.
With the development of technology, advanced technologies such as tool damage detection, machine tool anti-impact detection, and machine tool adaptive processing have emerged during processing, which can better protect CNC machine tools.
There are 9 reasons for this:
(1) Programming error
The process arrangement is wrong, the process undertaking relationship is not carefully considered, and the parameter setting is wrong.
Example :
A. The coordinate is set to zero at the base, but the top is 0 in practice;
B. The safety height is too low, resulting in the tool can not completely lift out the workpiece;
C. The second opening margin is less than the previous knife;
D. After the program is written, the path of the program should be analyzed and checked;
(2) Program single remarks error
Example:
A. The number of unilateral touches is written in four sides;
B. The clamping distance of the vise or the protruding distance of the workpiece is wrong;
C. The extension length of the tool is unknown or wrong, resulting in knife collision;
D. Procedure sheet should be as detailed as possible;
E. The principle of new for old should be adopted when the procedure is changed:Destroy the old program.
(3) Tool measurement error
Example:
A. The tool bar is not considered in the tool data input;
B. The tool is too short;
C. Tool measurement should use scientific methods, as far as possible with more accurate instruments;
D. The length of the tool should be 2-5mm longer than the actual depth.
(4) Program transmission error
Program number call error or program modification, but still use the old program processing; The site processor must check the detailed data of the program before processing; For example, the time and date the program was written and simulated with bear.
(5) Wrong knife selection
(6) the blank exceeds expectations, and the blank is too large and does not conform to the blank set by the program
(7) The workpiece material itself has defects or high hardness
(8) clamping factors, pad interference and the procedure is not considered
(9) Machine tool failure, sudden power failure, lightning strike caused tool collision, etc
Honscn has more than ten years of cnc machining experience, specializing in cnc machining, hardware mechanical parts processing, automation equipment parts processing. Robot parts processing, UAV parts processing, bicycle parts processing, medical parts processing, etc. It is one of the high-quality suppliers of cnc machining. At present, the company has more than 20 sets of cnc machining centers, grinding machines, milling machines, high-quality high-precision testing equipment, to provide customers with precision and high-quality cnc spare parts processing services.
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