What aspects should be paid attention to when determining the clamping method of workpieces for CNC machining

When determining the positioning reference and clamping scheme, the following three points should be noted:

1. Strive for consistency in design, process, and programming calculations.

2. Try to minimize the number of clamping times and achieve CNC machining of all the surfaces to be machined after one positioning.

3. Avoid using manual adjustment plans that occupy the machine.

4. The fixture should be open and its positioning and clamping mechanism should not affect the tool path in CNC machining (such as collision). When encountering such situations, it can be clamped using pliers or adding bottom plate screws.