A commonly used types of clamps:
CNC milling jig used generally have the following:
1, universal modular fixture. Suitable for small, small parts or small batch production were developed when milling on CNC milling machine.
2, special milling fixture. It is specifically designed for a one or several similar workpieces made fixtures, usually in annual output is large or when the research can not necessarily be used. Fix the structure, only the specific processes used in a specific part, should strive to simplify this type of fixture design, the manufacturing time is as short as possible.
3, multi-fixture. Simultaneously clamping several workpieces can reduce the number of tool changes, easy side has been processed, side loading and unloading, help shorten the auxiliary time, improve productivity, it is more suitable for mass production. Pneumatic or hydraulic grips. Suitable for production of larger quantities of occasions, and particularly the use of other fixtures of work, laborious piece, can reduce labor intensity and increase productivity, but this type of fixture structure is more complex, the cost is often high and long manufacturing cycle.
4, Universal Milling fixture. With universal adjustable clamp, vice, dividing head and jaw chuck and the like.
Second, CNC milling fixture selection principle:
1, in the selection of the fixture, generally need to consider the production volume, production efficiency, quality assurance and economy;
2, in a small production or research, should be widely used universal modular fixture, only ten can not be resolved in modular fixture before considering the use of other fixtures.
3, small batch or mass-produced special fixtures ten could be considered, but it should be as simple as possible.
4, in the production of larger quantities can be considered multi-position clamps and pneumatic, hydraulic fixture.