Fixture for machining noncoaxial hole of part

Abstract

The invention discloses a fixture for machining a nonaxial hole of a part. The fixture substantially mainly comprises a flange, a clamping mechanism and a balance block, wherein the clamping mechanismand the balance block are fixedly arranged on the flange through screws, and the fixture can be rapidly arranged on a lathe spindle through the flange; a clamping sleeve can be screwed to squeeze a clamping jaw at the front end of a clamping sleeve shaft to clamp the part to be machined; an index plate and a positioning rod can be matched to rapidly switch the machined surface of the part; the balance block can be used for balancing an eccentric moment of the clamping mechanism during rotation of the fixture to ensure stable rotation of the whole fixture as well as the machining accuracy of an inner hole in the part. According to the fixture, the aims of machining the nonaxial hole of the part on an ordinary lathe and ensuring higher machining accuracy are fulfilled.

Description

technical field [0001] The invention relates to fixture manufacturing technology, in particular to a fixture for processing non-coaxial holes of parts. Background technique [0002] Because of the fixed machining axis, the ordinary lathe can only process the inner hole of the same axis under the premise of one-time clamping of the part. When the part has multiple non-coaxial holes to be processed, each non-coaxial hole needs to be reinstalled. Clamp parts, and the repeated clamping process of parts will inevitably reduce the processing accuracy and processing efficiency. [0003] The existing technology can use the multi-axis machining center to process non-coaxial holes of parts, which can reduce the operation process and ensure the machining accuracy, but the equipment cost of the machining center is relatively high, and the training of technical personnel also needs to invest a certain amount of cost. Therefore, designing a set of fixtures that can be used on ordinary la...

AI Technical Summary

Problems solved by technology

However, for parts with different shapes or inner holes with different angles, the positioning parts in the fixture need to be specially designed. Therefore, the main disadvantage of the fixture body is that it is impossible to clamp different shapes without changing the fixture parts For the parts, the fixtures are not universal. If you need to process a variety of parts with different shapes and sizes, it is more conducive to improving production efficiency to use multiple sets of special fixtures that match the shape of the parts. In addition, the number of parts in the fixture is large, which affects the positioning accuracy There are many factors, and the machining of the clamping parts still cannot reach the machining accuracy of the machining center

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