Conical surface thickness measuring device and method

Abstract

The invention discloses a conical surface thickness measuring device and method. The measuring device comprises a horizontally-U-shaped positioning frame and two movable measuring rods which are coaxially arranged on two arms of the positioning frame respectively, the middle section of the horizontally-U-shaped positioning frame is a positioning section, the inner side surface of the positioning section of the horizontally-U-shaped positioning frame can be fit to the reference plane of a taper part, the main body of each movable measuring rod is cylindrical, the ends, opposite to each other, of the movable measuring rods are semicircular, the distance between the axis of each movable measuring rod to the inner side surface of the horizontally-U-shaped positioning frame equals the distancefrom a to-be-measured part of the taper part to the reference plane of the same. Thus, the time and cost of using a special instrument for detection are reduced, the structure is simple, measurement is convenient, the part can be detected in the processing process, the quality problem caused by clamping for multiple times is overcome, and the processing quality and efficiency are improved.

Description

technical field [0001] The invention relates to a size measuring device and method, in particular to a tapered surface thickness dimension measuring device and method. Background technique [0002] Taper surface processing is common in machining. The taper surface angle and thickness of most tapered parts can be measured with cone gauges and micrometers. However, some parts have complex shapes and are very inconvenient to measure the size of their tapered surfaces. Conventional micrometers are used. It is difficult to measure accurately, neither can guarantee the quality, and the efficiency is not high. It is too cumbersome and uneconomical to detect each product on a large tool microscope or three-dimensional coordinates during the grinding process, which has caused certain difficulties in mass production, and reprocessing without processing in place due to repeated Clamping has a great influence on accuracy. [0003] If existing tapered parts (see figure 1 ), in order t...

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Problems solved by technology

[0002] Taper surface processing is common in machining. The taper surface angle and thickness of most tapered parts can be measured with cone gauges and micrometers. However, some parts have complex shapes and are very inconvenient to measure the size of their tapered surfaces. Conventional micrometers are used. Difficult to measure accurately, can neither guarantee quality nor high efficiency

It is too cumbersome and uneconomical to detect each product on a large tool microscope or three-dimensional coordinates during the grinding process, which has caused certain difficulties in mass production, and reprocessing without processing in place due to repeated Clamping has a great influence on accuracy

[0003] If existing tapered parts (see figure 1 ), in order to ensure the machining accuracy, the machining process needs to ensure the accuracy of the cone surface angle α, β and the cone surface thickness D dimension (the cross-sectional dimension at the distance between the two cone surfaces and the datum plane H dimension), where the cone surface angle α, β can be conical The gauge is used for measurement, and the processing angle is guaranteed by the machine tool. Generally, the same batch will not change unless it is a special case. It only needs to be measured once, or re-inspected after a certain amount of processing. It is not necessary to measure each piece, but for the cone The surface thickness D dimension needs to be measured by professional equipment. The process is cumbersome and complicated, which is not conducive to mass production and processing.

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