CNC high speed precision parts processing process

CNC high-speed precision parts processing mainly refers to the use of digital information recorded on the media to control the machine tool, so that it can automatically carry out the specified processing tasks. Numerical control machining can ensure the products to achieve high machining accuracy and stable processing quality; the operation process is easy to realize automation; the productivity is high and the production cycle is short; it can greatly reduce the process equipment, adapt to the needs of product rapid update; it is usually closely linked with CAD to realize the transformation of design ideas to the final product. In the whole process of CNC high-speed precision parts processing, students should focus on the relationship between the processes and the significance of each step. In a broad sense, the whole process consists of product analysis, graphic design, process planning, path generation, path simulation, path output, processing and inspection. In this section, a specific case is demonstrated, focusing on understanding the connection of each link. The case processing material is double color plate or plexiglass.

1. Product analysis through product analysis should obtain certain composition information and some specific processing requirements.
2. Graphic design the graphic design should be based on the detailed analysis of the product. For example, for the processing of the seal, we should determine the font, text size, seal type by analyzing the processing requirements.
3. Process planning is based on the analysis of the appearance and processing requirements of the workpiece products in the early stage, so as to reasonably establish each processing step from the overall processing situation.
4. In fact, the process of path generation is to realize the process planning through software, and optimize the tool path by setting parameters.
5. After the path simulation path is generated, we generally have no intuitive sense of its final performance on the machine tool. Here we can check the possible problems through path simulation, thus reducing the actual processing scrap rate. The general inspection focuses on the effect of workpiece appearance, whether it is overcut or undercut, and whether the process planning of the path is reasonable.
6. Path output path output is a necessary step for software design and programming to realize on the machine tool. Through the path output, the relationship between the two can be established by the intermediate reference. If the students have the professional background of numerical control, they can also understand it as the post-processing of tool path.