Shenzhen precision parts
when batch processing, how to ensure the position precision of shenzhen is now the pearl river delta where machining
industry is concentrated.
Machining factory in mass production, will use a special machine tool for processing, such as CNC lathe, CNC milling machine, automatic lathe, so can not only ensure the quality of the precision parts processing, can also improve production efficiency.
In mechanical processing plants, the shape and structure simpler precision parts and components, workpiece clamping easier and convenient processing, only USES three jaw, four jaw chuck, flat pliers.
But for the structure shape more complex, precision machinery parts processing parts and more time, we can't use general fixture clamping, then you need to design special machine tool fixture.
Machine tool fixture is home machinery factory, an important component part of the process system, a process in order to ensure the workpiece machining requirements, must make precision parts processing, can be relatively tool on the machine tool cutting or shaping movement in the relative position of accurate.
When using fixture clamping a batch of workpieces, is through the jig to implement this requirement.
And to achieve this requirement, must satisfy three conditions: 1.
A batch of workpiece in the fixture has the correct processing position;
The accurate position of the clamping fixture in the machine;
The position of the cutter relative jig.
Here involves the relationship between three levels, namely, relatively jig and fixture relative to the machine tool parts, parts relative to the machine tool.
Precision parts machining accuracy is ultimately obtained by relative to the machine tool parts, so the position also involves three layer relations, positioning of workpiece on the fixture, jig relative to the positioning of the machine tool, relative to the machine tool and workpiece positioning is indirectly through fixture to ensure that, after the workpiece positioning must pass a certain device fixed clamping force of the workpiece, keep the artifacts in the position of accurate positioning, otherwise, due to cutting force in the process of precision parts processing, the role of the inertial force and other force and change position or cause vibration, destroyed the original accurate positioning, there is no guarantee that precision machining requirements, the produce of the clamping force device is clamping device.
The above advice from shenzhen hardware mechanical processing factory Xavier company.
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