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1. CNC machining route should ensure the accuracy and surface roughness of the workpiece processed by CNC.
2. Design the CNC machining route to reduce the idle travel time and improve the CNC machining efficiency.
3. Simplify numerical calculations and reduce program segments, reducing programming effort.
4. According to the shape of the workpiece, the stiffness, the CNC machining allowance, the rigidity of the machine tool system, etc., determine the number of cycles CNC machining.
5. Reasonably design the direction of cutting and cutting of the tool. The unidirectional approach positioning method is adopted to avoid the positioning error caused by the backlash of the transmission system.
6. Reasonable selection of milling or up-cut milling in milling CNC machining. Generally speaking, CNC machine tools use ball screws with small movement clearance, so the advantage of down-cut milling is more than that of up-cut milling.
The main task of CNC lathe processing design
Determine the specific CNC machining content, cutting amount, process equipment, positioning and installation method and tool movement trajectory of the process, and prepare for the preparation process. Among them, the setting of CNC machining route is a very important link. The CNC machining route is the movement track of the tool position relative to the workpiece during the cutting CNC machining. It not only includes the contents of the CNC machining process, but also reflects the arrangement of the CNC machining sequence. Therefore, the CNC machining route is an important basis for the preparation of CNC machining programs. Principles for determining CNC machining routes