Precision metal processing in the application of flexible fixture in precision metal processing, need more working procedure to finish processing, so it needs to be done on multiple devices, but many times the clamping, would lead to repeated positioning error, a great influence on the form a error of precision machining
, sometimes, even because repeated positioning error caused by circumstances beyond precision parts
Repeat positioning error is mainly from the following two aspects: 1.
Artifacts when the flow between different machine installation error: in the process of precision metal processing from the ordinary machine tools into nc machine tools, the need to install, so that the repetitive positioning error of workpiece is inevitable, if you need to edm, such as repeated positioning error will increase.
Artifacts on the same machine tool clamping error many times: when using ordinary machine tool precision metal parts processing, if you need to process several surface, you need a few times the clamping installation, the repetitive positioning error will be the installation error and many times.
Flexible fixture is a kind of high degree of standardization, seriation, generalization process equipment, it is installed on the machine tool's fixture of standard interface, and the other in advance make good all kinds of different shape, different specifications, different sizes, standard components, the combination of a complete interchangeability flow standard components with the workpiece when machining.
In the process of precision metal processing, can be carried out on the workpiece online testing, implementation of quality control in production process.
Therefore, the application of flexible fixture is very important.
Using the flexible fixture, ensure that the error of the second clamping workpiece: in processing need to use the equipment, installation of a unified flexible fixture products, workpiece through the tray, to flow in the different devices, tray with nails, can join in flexible fixture.
The unity of the locating datum is the theoretical basis of the flexible manufacturing in a ladder shaft processing, for example, rough machining on the ordinary lathe, and semi-finishing on nc lathe, and finishing on the grinding machine is complete, all machining operations on both ends of the top hole for the locating datum, and the second clamping, won't produce repeated positioning error, such processing has the prototype of the flexible manufacturing.
The above information is from guangdong precision metal processing factory Xavier precision components co. , LTD. , for more information please click on the link to see http://www.
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