Three elements of tooling design: 1. Benchmark 2. Size 3. Clamping
Benchmark: Design drawing benchmark and process processing benchmark. Tooling and fixture design is designed on the basis of design drawings. It can also be designed on process benchmark. Of course, the process benchmark is higher than the basic design requirements.
Size: The design size of the fixture can not be designed according to the size of the drawing, which means: the size of the fixture design should be stricter than the size of the drawing, generally 1/3.
Clamping: Do not destroy the positioning position of the workpiece during clamping and ensure that the shape and size of the product meet the requirements of the drawing. It can neither allow the workpiece to loosen and slip, nor make the restraint of the workpiece too large and produce a larger restraint stress.