1.High-Precision Components: CNC machining offers the ability to create small, high-precision components integral to the functioning of 3C electronics, such as sensors, microcontrollers, and small mechanical parts.

2.Customized Modifications: For repair or modification purposes, CNC machining can produce replacement parts or customized modifications for older or discontinued electronic devices that might not have readily available parts.

3.Quality and Consistency: CNC machining ensures high-quality production and consistency in electronic components, meeting tight tolerances and specifications required by the 3C industry.

4..Mass Production: Once the design is finalized, CNC machining can be employed for mass production of custom components in the 3C electronics industry, ensuring each piece meets exact specifications.

Overall, CNC custom machining plays a pivotal role in the 3C electronics industry by enabling the creation of precise, customized, and high-quality components necessary for modern electronic devices. For custom CNC production services, please choose us and we will provide you with the best quality service and the most competitive price. Let us jointly promote the innovation and development of the 3C Electronics manufacturing industry!

In the field of machining, after CNC machining process methods and division of processes, the main content of the process route is to rationally arrange these processing methods and processing sequence. In general, CNC machining of mechanical parts includes cutting, heat treatment and auxiliary processes such as surface treatment, cleaning and inspection. The sequence of these processes directly affects the quality, production efficiency and cost of the parts. Therefore, when designing CNC machining routes, the order of cutting, heat treatment and auxiliary processes should be reasonably arranged, and the connection problem between them should be solved.

In addition to the basic steps mentioned above, factors such as material selection, fixture design and equipment selection need to be considered when developing a CNC machining route. Material selection is directly related to the final performance of parts, different materials have different requirements for cutting parameters; The fixture design will affect the stability and accuracy of the parts in the process of processing; Equipment selection needs to determine the type of machine tool suitable for its production needs according to the characteristics of the product.

1, the processing method of precision machinery parts should be determined according to the characteristics of the surface. On the basis of familiar with the characteristics of various processing methods, mastering the processing economy and surface roughness, the method that can ensure the processing quality, production efficiency and economy is selected.

2, select the appropriate drawing positioning reference, according to the principle of crude and fine reference selection to reasonably determine the positioning reference of each process.

3, When developing the machining process route of the parts, it is necessary to divide the rough, semi-fine and finishing stages of the parts on the basis of the analysis of the parts, and determine the degree of concentration and dispersion of the process, and reasonably arrange the processing sequence of the surfaces. For complex parts, several schemes can be considered first, and the most reasonable processing scheme can be selected after comparison and analysis.

4, determine the processing allowance and process size and tolerance of each process.

5, select machine tools and workers, clips, quantities, cutting tools. The selection of mechanical equipment should not only ensure the quality of processing, but also be economical and reasonable. Under the conditions of mass production, general machine tools and special jigs should generally be used.

6, Determine the technical requirements and inspection methods of each major process.Determining the cutting amount and time quota of each process is usually decided by the operator for a single small batch production plant. It is generally not specified in the machining process card. However, in the medium batch and mass production plants, in order to ensure the rationality of production and the balance of rhythm, it is required that the cutting amount must be specified, and must not be changed at will.

First rough and then fine

The processing accuracy is gradually improved according to the order of rough turning - semi-fine turning - fine turning. The rough lathe can remove most of the machining allowance of the workpiece surface in a short time, thereby increasing the metal removal rate and meeting the requirement of the uniformity of the allowance. If the residual amount left after the rough turning does not meet the finishing requirements, it is necessary to arrange a semi-finishing car for finishing. The fine car needs to ensure that the outline of the part is cut according to the drawing size to ensure the processing accuracy.

Approach first and then far

Under normal circumstances, the parts close to the tool should be processed first, and then the parts far away from the tool to the tool should be processed to shorten the moving distance of the tool and reduce the empty travel time. In the process of turning, it is beneficial to maintain the stiffness of the blank or semi-finished product and improve its cutting conditions.

The principle of internal and external intersection

For parts that have both an inner surface (inner cavity) and an outer surface to be processed, when arranging the processing sequence, the inner and outer surfaces should be roughed first, and then the inner and outer surfaces should be finished. Must not be part of the surface of the part (outer surface or inner surface) after processing, then processing other surfaces (inner surface or outer surface).

Base first principle

Priority should be given to the surface used as the finishing reference. This is because the more accurate the surface of the positioning reference, the smaller the clamping error. For example, when machining shaft parts, the center hole is usually machined first, and then the outer surface and end face are machined with the center hole as the precision basis.

The principle of the first and the second

The main working surface and assembly base surface of the parts should be processed first, so as to find out the modern defects on the main surface in the blank early. The secondary surface can be interspersed, placed on the main machined surface to a certain extent, before the final finishing.

The principle of the face before the hole

The plane outline size of the box and bracket parts is large, and the plane is generally processed first, and then the hole and other sizes are processed. This arrangement of processing sequence, on the one hand with the processed plane positioning, stable and reliable; On the other hand, it is easy to process the hole on the machined plane, and can improve the processing accuracy of the hole, especially when drilling, the axis of the hole is not easy to deviate.

When developing the machining process of parts, it is necessary to select the appropriate processing method, machine tool equipment, clamp measuring tools, blank and technical requirements for workers according to the production type of parts.

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.

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

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Numerical control drilling is a method of drilling using digital control technology. It has the characteristics of high precision, high efficiency and high repeatability. By pre-programming to set the drilling position, depth, speed and other parameters, CNC machine tools can automatically complete complex drilling operations.

CNC drilling machine is usually composed of control system, drive system, machine body and auxiliary device. The control system is the core, responsible for processing and sending instructions; The drive system realizes the movement of each axis of the machine tool; The machine body provides drilling platform and structural support; Auxiliary devices include cooling system, chip removal system, etc., to ensure the smooth process.In the manufacturing industry, CNC drilling is widely used in aerospace, automotive, mold manufacturing and other fields, which can meet the demand for high-precision drilling of parts and improve production efficiency and product quality.

The processing principle of CNC drilling technology mainly includes the following steps:

1. Programming: The designed drilling pattern and parameters are converted into CNC machine tool identifiable processing program, through the keyboard on the operation panel or input machine to send digital information to the CNC device.

2. Signal processing: The CNC device performs a series of processing on the input signal, sends the feed servo system and other execution commands, and sends S, M, T and other command signals to the programmable controller.

3. Machine tool execution: After the programmable controller receives S, M, T and other command signals, it controls the machine tool body to execute these commands immediately, and feedbacks the execution of the machine tool body to the CNC device in real time.

4. Displacement control: After the servo system receives the feed execution command, the coordinate axes of the main body of the drive machine tool (feed mechanism) are accurately displaced in strict accordance with the requirements of the instruction, and the processing of the workpiece is automatically completed.

5. Real-time feedback: In the process of displacement of each axis, the detection feedback device will quickly feedback the measured value of the displacement to the numerical control device, so as to compare with the command value, and then issue compensation instructions to the servo system at a very fast speed until the measured value is consistent with the command value.

6. Over-range protection: in the process of displacement of each axis, if the phenomenon of "over-range" occurs, the limiting device can send some signals to the programmable controller or directly to the numerical control device, the numerical control system on the one hand sends an alarm signal through the display, on the other hand, it sends a stop command to the feed servo system to implement over-range protection.

CNC drilling technology has the following processing characteristics:

1. High degree of automation: the whole processing process is controlled by a pre-prepared program, reducing manual intervention and improving production efficiency.

2. High accuracy: It can realize high-precision drilling, accurate positioning, and the size and shape accuracy of the hole are guaranteed.

3. Good processing consistency: as long as the procedure is unchanged, the product quality is stable and the repeatability is high.

4, complex shape processing ability: can process a variety of complex shapes and structures of the workpiece to meet diverse needs.

5. Wide range of adaptation: suitable for drilling of a variety of materials, including metal, plastic, composite materials, etc.

6. High production efficiency: fast automatic tool change system and continuous processing ability, greatly shortening the processing time.

7. Easy to adjust and modify: the parameters and process of drilling can be adjusted by modifying the program, and the flexibility is strong.

8. Multi-axis linkage can be realized: drilling can be carried out in multiple directions at the same time, improving the complexity and accuracy of processing.

9. Intelligent monitoring: It can monitor various parameters in the processing process in real time, such as cutting force, temperature, etc., find problems in time and adjust them.

10. Good human-computer interaction: the operator can easily operate and monitor through the operation interface.

The machining accuracy of CNC drilling technology is mainly ensured through the following aspects:

1. Machine tool accuracy: the selection of high-precision CNC drilling machine tools, including the structural design of the machine tool, manufacturing process and assembly accuracy. High-quality guide rails, lead screws and other transmission components can reduce motion errors.

2. Control system: The advanced CNC system can accurately control the movement trajectory and speed of the machine tool to achieve high-precision positioning and interpolation operations, so as to ensure the accuracy of the drilling position and depth.

3. Tool selection and installation: Select the appropriate drill bit and ensure its installation accuracy. The quality, geometry and wear of the tool all affect the machining accuracy.

4. Cooling and lubrication: A good cooling and lubrication system can reduce the generation of cutting heat, reduce tool wear, maintain the stability of the processing process, and help to improve accuracy.

5. Programming accuracy: Accurate programming is the basis for ensuring machining accuracy. Reasonable setting of drilling coordinates, feed speed, cutting depth and other parameters to avoid programming errors.

6. Measurement and compensation: Through the measurement equipment to detect the workpiece after processing, the measurement results are fed back to the numerical control system for error compensation, so as to further improve the processing accuracy.

7. Fixture positioning: to ensure the accurate and reliable positioning of the workpiece on the machine tool, reduce the impact of the clamping error on the machining accuracy.

8. Processing environment: stable temperature, humidity and clean working environment help to maintain the accuracy and stability of the machine tool, so as to ensure the processing accuracy.

9. Regular maintenance: Regular maintenance of the machine tool, including checking and adjusting the accuracy of the machine tool, replacing the worn parts, etc., to ensure that the machine tool is always in good working condition.

In CNC drilling technology, the surface quality of drilling can be improved by the following methods:

1. Choose the right tool: According to the processing material and drilling requirements, choose high quality, sharp and geometrically optimized drill bits. For example, the use of coated drill bits can reduce friction and wear and improve surface quality.

2. Optimize cutting parameters: set cutting speed, feed rate and cutting depth reasonably. Higher cutting speed and proper feed usually help to obtain a better surface finish, but care should be taken to avoid excessive tool wear or machining instability due to improper parameters.

3. Full cooling and lubrication: The use of effective cooling lubricant, timely take away the cutting heat, reduce the cutting temperature, reduce tool wear and the formation of chip tumors, thereby improving the surface quality.

4. Control the processing allowance: before drilling, reasonably arrange the pre-processing process, control the allowance of the drilling part, and avoid excessive or uneven impact on the surface quality.

5. Improve the accuracy and stability of the machine tool: maintain and calibrate the machine tool regularly to ensure the motion accuracy and rigidity of the machine tool, and reduce the impact of vibration and error on the surface quality.

6. Optimize the drilling path: adopt reasonable feeding and retracting methods to avoid burrs and scratches at the hole opening.

7. Control the processing environment: keep the processing environment clean, constant temperature and humidity, reduce the interference of external factors on the processing accuracy and surface quality.

8. Using step-by-step drilling: for holes with larger diameters or high precision requirements, the method of step-by-step drilling can be used to gradually reduce the aperture and improve the surface quality.

9. Hole wall treatment: After drilling, if necessary, polishing, grinding and other subsequent treatment methods can be used to further improve the surface quality of the hole.

CNC drilling technology has been widely used in the following fields:

1. Aerospace field: Components used in the manufacture of aircraft and spacecraft, such as wing structures, engine components, etc., have high requirements for precision and quality.

2. Automobile manufacturing industry: drilling and processing of automobile engine cylinder block, transmission shell, chassis parts, etc., to ensure the accurate coordination of parts.

3. Electronic equipment manufacturing: It plays an important role in the drilling of printed circuit boards (PCB) to ensure the accuracy of circuit connections.

4. Mold manufacturing: high-precision drilling for all kinds of molds such as injection mold, stamping die, etc., to meet the complex structure and high-precision requirements of the mold.

5. Medical device field: precision parts for the production of medical devices, such as surgical instruments, prosthetic parts, etc.

6. Energy industry: including wind power generation equipment, petrochemical equipment and other parts drilling.

7. Marine manufacturing: drilling and processing of Marine engine parts, hull structural parts, etc.

8. Military industry: parts manufacturing of weapons and equipment to ensure their performance and reliability.

In short, CNC drilling technology has an indispensable position in all fields of modern industry because of its high precision, high efficiency and flexibility.

The development trend of CNC drilling technology is mainly reflected in the following aspects:

1. Higher accuracy and speed: With the continuous improvement of product quality and production efficiency requirements of the manufacturing industry, CNC drilling technology will develop in the direction of higher positioning accuracy, repeat accuracy and faster drilling speed.

2. Intelligence and automation: the integration of artificial intelligence, machine learning and other technologies to achieve automatic programming, automatic optimization of processing parameters, automatic fault diagnosis and automatic error compensation functions, further reduce manual intervention, improve processing efficiency and quality stability.

3. Multi-axis linkage and composite machining: The development of multi-axis linkage drilling technology can complete the drilling of complex shapes and multi-angles in a single clamping. At the same time, with other processing processes such as milling, grinding, etc., to achieve a multi-machine energy, improve processing efficiency and accuracy.

4. Green environmental protection: Focus on energy saving and consumption reduction, using more efficient drive systems and energy-saving technologies to reduce energy consumption. At the same time, the use and treatment of cutting fluid is optimized to reduce the impact on the environment.

5. Miniaturization and large-scale: on the one hand, it meets the high precision and high stability needs of micro-parts drilling; On the other hand, it can deal with large-scale drilling of large structural parts such as ships and Bridges.

6. Network and remote control: Through the network to achieve the interconnection between equipment, remote monitoring, diagnosis and maintenance, improve the efficiency and convenience of production management.

7. New material adaptability: can adapt to new materials such as superalloy, composite materials and other drilling processing, develop the corresponding tools and processes.

8. Optimization of human-computer interaction: a more friendly and convenient human-computer interaction interface makes it easier for operators to program, operate and monitor.

As an important processing method in modern manufacturing industry, CNC drilling technology has many advantages and wide application fields. The machining principle realizes high precision drilling through programming, signal processing, machine tool execution and other steps. In terms of characteristics, it has the advantages of high degree of automation, high precision, good consistency and wide range of adaptation. In order to ensure machining accuracy, it depends on many factors such as machine tool accuracy, control system and tool selection. The quality of drilling surface can be improved by selecting cutting tools and optimizing cutting parameters. In the future, the development trend of CNC drilling technology will move towards higher precision and speed, intelligence and automation, multi-axis linkage and composite processing, green environmental protection, miniaturization and large-scale, networking and remote control, new material adaptability and human-computer interaction optimization. It is foreseeable that CNC drilling technology will continue to innovate and develop, providing more powerful support for the progress of the manufacturing industry.