CNC lathe machining sequence

In the process of CNC lathe processing, the processing object is complex, especially the shape and position of some contour curves have changed, plus different materials and batches increase the difficulty of processing. Therefore, when developing the processing sequence of specific parts, specific analysis and difference treatment should be carried out first, and flexible processing should be carried out. This can ensure the order and rationality of processing. Thus improve production efficiency and harvest quality products. In the programming to fully consider two levels of problems, one is the processing order, the second is the parameters, such as speed, feed, depth of cutting.

The processing sequence is generally: first drilling, after the flat end. This prevents shrinkage when drilling; First rough processing, after finishing; Machining large tolerances first, then machining small tolerances.

Orders should normally be executed according to the following principles:

1, the processing of the previous process can not affect the positioning and clamping of the next process, and the processing technology of the general lathe should also be considered comprehensively.

2, advanced line cavity processing sequence, after forming processing technology.

3, in the same installation of multiple processes, should first arrange the process of the workpiece rigidity damage.

4, the same positioning, clamping method or the same tool processing technology should be connected first to reduce the number of repeated positioning, the number of tool changes and the number of plate moves.

5, the internal and external cross for the inner surface (inner cavity), the outer surface for the parts to be processed, should be arranged for the processing sequence, the first internal and external surface roughing, after the internal and external surface finishing.