High-precision hard and brittle material coil skeleton turning and milling composite processing technology and tooling

Abstract

The invention relates to a turning and milling compound machining process and tool for high-precision hard and brittle material coil skeletons; and the turning and milling compound machining method isapplied to machining of the high-precision hard and brittle material coil skeletons, so that the bottom machining quality of outer ring grooves of parts can be prominently improved. A traditional process flow is optimized; a traditional machining process of finishing machining of inner hole and outer ring grooves of the parts in sequence through twice clamping is optimized to finish machining ofthe inner holes and the outer ring grooves of the parts in sequence through reverse pressing of plates in once clamping; and the machining tool is designed. The optimized process and the machining tool can prominently reduce the machining difficulty of the parts, meanwhile, can prominently improve the machining efficiency and the machining precision of the parts, and reduce the manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of precision machining of gyroscope coil skeletons, in particular to a turning-milling composite processing technology and tooling for high-precision hard and brittle material coil skeletons. Background technique [0002] The coil skeleton of the core part of the high-precision, high-resolution three-float gyroscope is made of hard and brittle material machinable ceramics. The eight bosses of the circle are partially fixed. In order to ensure the positioning accuracy of the coil, the indexing accuracy of the evenly distributed bosses on the outer circle of the part is relatively high, and the bottom surface of the outer circle around the bosses requires a smooth transition, which further increases the difficulty of its processing. figure 1 Shown is a schematic diagram of the three-dimensional structure of the part. [0003] At present, the line groove around the boss of this part is completed by turning an...

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is: since the inner hole is used as the reference when the grooves around the outer circular boss are processed, in order to ensure the indexing accuracy of the boss relative to the axis of the inner hole after subsequent milling and the smooth transition with the circular groove in the turning direction , put forward higher requirements for the dimensional accuracy of the inner hole of the part and the coaxiality of the inner hole and the outer ring groove during turning, and also increase the processing difficulty

When milling, it is necessary not only to control the gap between the inner hole of the part and the outer circle of the tooling, but also to ensure that the center of the tooling coincides with the center of the turntable, which not only increases the difficulty of processing, but also puts forward higher requirements for the processing of the tooling

In addition, the machining efficiency is relatively low because the outer circumferential wire groove and the axial wire groove are processed by two clamping operations

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