According to the characteristics of NC machine tool processing, it can be seen that the parts most suitable for NC processing include parts with multiple varieties and small batch production or parts in the trial production of new products;
1. Parts with complex geometry;
2. Parts that must be processed in multiple processes during processing;
3. Parts that require expensive tooling equipment (tools, fixtures and molds) when processed with ordinary machine tools;
4. The tolerance must be strictly controlled, and parts with high accuracy requirements:
5. Parts whose process design needs to be modified many times;
6. Key parts that are expensive and cannot be scrapped during processing:
7. Parts requiring the shortest production cycle.
General layout of CNC milling machine
CNC milling machine is a kind of machine tool with a wide range of uses. It is divided into vertical and horizontal types according to the layout of the spindle, and can complete the milling of straight lines, oblique lines and curves. At present, three-axis CNC milling machines account for a large proportion, and can carry out three-axis linkage processing: if only any two of the three-axis linkage can be carried out, it is usually called two and a half axis CNC milling machines. Two and a half axis CNC milling machine can realize the contour processing of plane curves, such as cams, templates, profiling, arc grooves, etc.
