Introduction
In the field of machining, ensuring machining accuracy is of great importance for the quality of the workpiece. The accuracy of machining directly affects the surface finish and dimensional accuracy of machining parts. In the process of machining, due to the influence of various factors, when the machining accuracy is not up to the requirements, various processing errors will appear, such as scratches, scratches and burrs in machining parts, which will affect the performance of products. Therefore, improving the accuracy of machining is particularly important.
1. Selection of machining tools
In the machining process, the accuracy of machining parts is mainly determined by the precision of cutting tools, drilling tools and grinding tools. For example, when cutting with milling machine, the precision of cutting tools and cutting parameters will directly affect the machining accuracy of workpieces. When turning workpieces with CNC lathe, not only the material, geometry and hardness of cutting tools, but also the speed and feed of lathe need to be rationalized, otherwise the machining accuracy will be affected.
2. Optimization of machining parameters
The optimization of machining parameters can improve the machining accuracy of parts. The machining parameters include such parameters as cutting speed, feed speed, cutting depth, clamping force and cutting fluid. To ensure the accuracy of parts machining, reasonable selection of these parameters is essential. The cutting speed of cutting tools determines the material removal rate in the cutting process, and its reasonable selection can increase the stability of cutting process, reduce the vibration of cutting tools and improve the machining accuracy of parts.
3. Selection of quality machine tools
In the machining process, the quality of machine tools directly affects the machining accuracy of the parts, especially for the processing of high-precision parts, the selection of machine tools has an important impact on the machining quality. Therefore, in the selection of machine tools for precision machining, the quality of machine tool structure and design should be paid attention to, and the machine tool should be selected from reliable manufacturers.
4. Improve chip removal
In the machining process, the cutting of cutting tools is hindered by chip accumulation, which will directly affect the machining accuracy of parts. Therefore, measures should be taken to improve the chip removal effect. According to the characteristics of workpiece material, appropriate cutting parameters and cutting fluids can be selected to improve the cutting effect and chip removal effect, so as to reduce the influence of chip accumulation on machining accuracy.
5. High precision multi-axis linkage machining
For parts with complex profiles, multi-axis linkage machining is adopted in the machining process to improve the machining accuracy of parts. The multi-axis linkage machining system is composed of several different axes of CNC machine tools, and the linkage movement and real-time data exchange between these axes can improve the machining accuracy of parts. For example, in order to ensure the machining accuracy of inner hole parts, multi-axis CNC machine tools can be used for three-axis simultaneous machining, which can ensure the precision of positional repeatability and position accuracy, and ensure the machining accuracy of parts.
Conclusion
In conclusion, improving the machining accuracy of parts is a complex task, which requires concerted efforts in selecting machining tools, optimizing machining parameters, selecting quality machine tools, improving chip removal and using multi-axis linkage machining. Therefore, in order to ensure the machining accuracy of parts, we must systematically analyze and study the influence of various factors, make reasonable and scientific use of cutting tools, choose high-quality machine tools with reasonable parameters, reasonably select cutting fluids, and control the cutting process to ensure the machining accuracy of parts.
