A measuring method and device during the processing of annular semi-closed thin-walled parts

Abstract

The invention discloses a measuring method and device of an annular semi-closed thin-wall part in machining process. The wall thickness measurement of the annular semi-closed region part which is inconvenient to measure is transferred to the outer side of the part, and whether the wall thickness is qualified or not is judged by measuring the surface distance between the extending surface of an inner surface and the extending surface of an outer surface of the wall thickness of the part to be measured. According to the measuring method and the device, the problem that the wall thickness of theannular semi-closed region is not easy to measure in the machining process is solved, so that the wall thickness measuring work can be completed without detaching the part from a clamping clamp. Furthermore, the clamp for clamping the part is used as a foundation, a support surface which is coplanar with the outer surface of the wall thickness of the part to be measured is extended on the clamp toserve as a reference surface, and a comparison surface of a measuring clamping plate which is parallel to the inner surface of the wall thickness of the part to be measured is matched, then the distance between the inner surface and the outer surface can be measured, and therefore the wall thickness can be measured.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a measuring method and device for measuring the actual wall thickness value of an annular semi-closed part to determine the feed amount when it is processed on a machine tool. Background technique [0002] like figure 1 As shown, part 2 is an annular semi-closed thin-walled part, and its outer edge has a vertical edge, which forms an annular semi-closed area with the bottom surface of the part, and the bottom surface connected to this edge is the position to be processed. The wall thickness of the position determines the machining feed rate. Since the part 2 is clamped on the fixture main body 1, its bottom surface is attached to the upper surface of the fixture main body 1 (as a supporting surface), so its thickness is measured in real time during the processing (the part 2 must be removed from the fixture main body 1 Accurate measurement can only be done after d...

AI Technical Summary

Problems solved by technology

Since the part 2 is clamped on the fixture main body 1, its bottom surface is attached to the upper surface of the fixture main body 1 (as a supporting surface), so its thickness is measured in real time during the processing (the part 2 must be removed from the fixture main body 1 Accurate measurement can only be done after disassembly), the efficiency of this processing method is low, and it affects the processing quality

[0003] However, there are still many cases where the wall thickness cannot be measured during the processing of the existing annular semi-closed thin-walled parts, so there is an urgent need for a method and device that can measure the wall thickness in real time during the processing

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