CNC precision machining utilizes computer numerical control mechanical machining, which uses digital automation information to control the processing and motion processes of mechanical machining. It can also refer to an automated machine tool equipped with control system programs. The main division of CNC precision machining processes is as follows:
1. CNC machining of surface before hole:
For components such as shells, brackets, and connecting rods, parallel surfaces should be machined by CNC before producing CNC machining holes. This enables precise positioning of production and processing holes on parallel surfaces, ensuring the precision of the positions of parallel surfaces and holes, and providing convenience for the production and processing of holes on parallel surfaces.
2. CNC machining reference plane first:
During the production process of components, the outer surface that serves as a precise positioning reference should be first processed by CNC, providing a precise reference for the subsequent production and processing steps.
3. Smooth surface CNC machining:
The CNC precision machining of the main outer surface should be carried out at the end of the processing process planning stage. The outer surface roughness after production processing should be above Ra0.9um, and slight impact can damage the outer surface. Generally, protective measures should be taken with velvet cloth, and it is strictly prohibited to directly contact the product workpiece with hands or other objects to prevent damage to the outer surface of the smooth production processing due to transportation and assembly between steps.
4. Differentiate production CNC processing steps:
The outer surface of CNC precision machining products with high quality standards can be divided into production and processing stages, usually including rough machining, semi precision milling, and precision milling. Mainly to ensure the quality of production and processing products; Beneficial for the rational use of machinery and equipment; Convenient and reasonable arrangement of heat treatment process steps; It is also convenient to detect hair defects as soon as possible.
