How to choose the fixture of CNC milling machine?

Release time:

2022-06-25

How to choose the fixture of CNC milling machine?

Types of 1. commonly used fixtures: CNC milling commonly used fixtures are roughly the following:

1. Universal combination fixture. Suitable for small batch production or development of small and medium-sized workpieces in CNC milling machine for milling.

2. Special milling fixture. This is a fixture designed and manufactured for one or several similar workpieces, and is generally used when the annual output is large or the development is necessary. Its structure is fixed, only used in a specific part of the specific process, this type of fixture design should strive to simplify, so that the manufacturing time as short as possible.

3. Multi-station fixture. Multiple workpieces can be clamped at the same time, which can reduce the number of tool changes. It is convenient for one-side processing and one-side loading and unloading of workpieces, which is beneficial to shorten the auxiliary time, improve productivity and is more suitable for medium batch production. Pneumatic or hydraulic clamps. Suitable for the production of large quantities of occasions, the use of other fixtures and special labor-intensive, laborious workpiece, can reduce the labor intensity of workers and improve productivity, but this kind of fixture structure is more complex, the cost is often very high, and the manufacturing cycle is long.

4. Universal milling fixture. There are universal adjustable clamps, vise, dividing head and three-jaw chuck, etc.

2. CNC milling machine fixture selection principle:

1. When choosing a fixture, it is usually necessary to consider the production volume, production efficiency, quality assurance and economy of the product;

2, in the production of small or development, should be widely used universal combination fixture, only in the combination fixture can not solve ten to consider the use of other fixtures.

3, small batch or batch production can consider the use of special fixtures, but should be as simple as possible.

4, in the production of large quantities can consider the use of multi-station fixture and pneumatic, hydraulic fixture.

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