The entire processing of the CNC lathe is completed by executing the processing program of the workpiece. Therefore, the quality of the processing program directly affects the final processing accuracy and processing efficiency of the workpiece. The prerequisite for workpiece processing programming is the approval of process design. This article will briefly introduce the process principles that CNC lathes should follow for efficient CNC machining. I hope it will be of some help to us. We know that CNC lathes are highly complex processing equipment. Before programming the easy to machine aluminum program, the processing technology must be confirmed according to the planning requirements and processing content of the drawings. Generally speaking, the recognition principles of processing technology should follow the following basic principles:
1. The machining principle of roughing first and then finishing. Generally, in order to ensure the final processing quality of the workpiece, we divide the workpiece processing into two stages: rough machining and finishing. For workpieces with higher machining accuracy, a semi-finishing stage is also added. . This principle should also be followed when performing CNC machining on CNC lathes. When rough machining the workpiece with a CNC lathe, it can quickly remove most of the machining allowance, reduce the number of tool passes as much as possible, and shorten the rough machining time; when finishing, the first priority is to ensure the accuracy and surface quality of the workpiece, so generally the final result of the workpiece during finishing is The outline should be formed by continuous finishing in one pass.
2. The principle of one-time clamping and positioning. Completing multi-process delrin cnc machining of workpieces in one clamping is the fundamental processing feature of CNC lathes. Therefore, when confirming the workpiece processing technology, each processing process should be concentrated to the maximum extent. Reduce the number of clamping times as much as possible to reduce unnecessary positioning errors and repeated clamping processes.
3. The principle of processing inside first, then outside. When the workpiece to be processed has both inner and outer surfaces that need to be processed, when arranging the processing sequence, the inner surface of the workpiece should be processed first and then the outer surface. If processing is performed in stages, The inner and outer surfaces should also be rough machined first, and then the inner and outer surfaces should be finished.
4. The processing principle of face first and then hole. As we said before, the CNC lathe processing technology is a composite processing machine tool. It can not only perform turning but also boring processing. When the workpiece to be processed has both a flat surface and a hole, the flat surface should be machined first and then boring. Since the cutting force is larger when the flat surface is turned, the workpiece is prone to deformation. The surface should be machined first and then bored to allow it some time to recover. , wait until the deformation is restored before boring, which will help ensure the machining accuracy of the hole.