High Precision CNC Machining Parts Manufacturers

In terms of CNC programming, what advanced technologies and tools do CNC precision parts manufacturers have to ensure the precise processing of parts?

1. Advanced CAD/CAM software
CAD (Computer-Aided Design) software:
CAD software is used to draw three-dimensional models and two-dimensional engineering drawings of parts. Through precise dimension input and graphic design, CAD software can generate high-precision part models.
Commonly used CAD software includes AutoCAD, SolidWorks, Inventor, etc., which provide powerful design functions and precise dimension control capabilities.
CAM (Computer-Aided Manufacturing) software:
CAM software is used to convert CAD models into machining codes (G codes) recognizable by CNC machine tools. CAM software can simulate the machining process, optimize tool paths, and improve machining accuracy and efficiency.
Commonly used CAM software includes Mastercam, SolidCAM, Fusion 360, etc. These software support a variety of CNC machine tools and tools, and can generate efficient and accurate machining paths.
2. High-precision CNC machine tools
Machine tool accuracy:
The accuracy of CNC machine tools directly affects the accuracy of machined parts. High-precision CNC machine tools have better positioning accuracy, repeat positioning accuracy and processing stability.
Manufacturers will regularly calibrate and maintain machine tools to ensure that their accuracy meets processing requirements.
Machine tool stability:
Stable machine tool structure can reduce vibration and deformation during processing, thereby improving processing accuracy.
High-precision CNC machine tools usually use high-quality materials and advanced manufacturing processes to ensure their stability and durability.
3. High-precision cutting tools and tool management system
Cutting tool selection:
Manufacturers will select suitable cutting tools according to the material, shape and processing requirements of the parts. For example, for hard materials, tools with high hardness and wear resistance will be selected; for precision processing, tools with tiny cutting edges and good surface finish will be selected.
Tool management system:
The tool management system can automatically identify and replace tools, reducing human errors and downtime. At the same time, the system can also monitor the wear of the tools and replace severely worn tools in time to ensure processing accuracy.
4. Process optimization and quality control
Process optimization:
Manufacturers will continuously optimize the processing technology, including the reasonable selection of cutting parameters (such as cutting speed, feed speed, cutting depth, etc.), the reasonable arrangement of processing sequence and clamping method, etc., to improve processing accuracy and efficiency.
Quality inspection:
During and after processing, manufacturers will use high-precision measuring equipment and tools to perform dimensional inspection and surface quality evaluation on parts. This helps to timely discover and correct problems in processing and ensure that the quality of parts meets the requirements.
5. Environmental control and chip management
Environmental control:
The processing workshop needs to have good environmental control facilities, such as constant temperature and humidity equipment, shock absorption devices, etc., to reduce the impact of environmental factors on processing quality.
Chip management:
Always clean the edges of chips or accumulations and prevent them from contacting the workpiece to avoid rough and uneven surfaces. This helps to improve the surface finish and processing accuracy of parts.

How do CNC machining precision parts suppliers control environmental factors such as temperature and vibration during CNC machining to ensure machining accuracy?
1. Temperature control
Set reasonable processing environment temperature and humidity
Temperature control: The ambient temperature of the CNC lathe should be less than 30 degrees, and the relative humidity should be less than 80%. Excessive temperature and humidity will reduce the life of the control system components and cause more failures, and will also increase the adhesion of dust in the integrated circuit board, causing short circuits.
Constant temperature facilities: The workshop adopts constant temperature facilities to maintain the accuracy and machining accuracy of precision machine tools, although the energy consumption is large. This helps to reduce the thermal deformation of the machine tool and workpiece caused by temperature fluctuations, thereby affecting the machining accuracy.
Optimize the internal heat dissipation of the machine tool
Heat dissipation design: Components such as CNC electric control boxes are usually equipped with exhaust fans or cooling fans to keep the operating temperature of electronic components, especially processors, constant or with little temperature difference.
Foundation heat dissipation: The foundation of the precision CNC machine tool should be away from the underground heating pipeline to prevent the leakage of heat sources from affecting the machine tool. At the same time, the open workshop environment is conducive to the temperature balance of the workshop.
Heat source isolation and distribution management
Heat source isolation: The heat generated by motors such as spindle motors and feed servo motors has an adverse effect on components such as spindles and ball screws, and measures should be taken to isolate them.
Heat source distribution optimization: By rationally arranging the internal heat sources of the machine tool, the direct impact of the heat source on the entire machine tool or key components can be reduced, and the risk of thermal deformation can be reduced.
2. Vibration control
Cutting tool and tool holder selection and optimization
Tool selection: Select tools suitable for the processing material and processing method, such as using sharp cutting edges and light-load grooves to reduce cutting forces and vibrations.
Tool holder system: Using a tool holder system with high rigidity and stability, such as the Coromant Capto® modular tool holder system, can assemble tools of the required length while maintaining high stability and minimum runout.
Cutting parameters and tool path optimization
Cutting parameter adjustment: Adjust cutting parameters such as cutting speed, feed rate and cutting depth according to tool length and processing material to reduce vibration tendencies.
Tool path planning: Reasonably plan the tool path to avoid processing in directions where the workpiece is not fully supported to reduce vibration.
Machine tool status inspection and maintenance
Spindle and feed mechanism inspection: Regularly check the status of the spindle bearings and feed mechanism to ensure that they are in good working condition and avoid vibration caused by excessive wear.
Stability diagram application: Use the stability diagram to describe the stable cutting area of ​​the machine tool spindle, select the appropriate speed and cutting parameters, and avoid processing in the unstable area.
Fixture and workpiece support
Fixture design: Design a fixture with good rigidity and ensure that the fixture is in close contact with the machine tool worktable to reduce vibration during processing.
Workpiece support: For thin-walled or poorly rigid workpieces, support structures should be added or special fixtures should be used for processing to improve the rigidity and stability of the workpiece.