Automobile differential planet bevel gear spherical surface height detection gauge

Abstract

The invention discloses an automobile differential planet bevel gear spherical surface height detection gauge. The detection tool is composed of a tooth die, a flat plate, a pedestal, a vertical rod, a horizontal rod and a meter tool. The pedestal is a 90-degree V-shaped block. One side of the flat plate is fixedly connected on the horizontally-arranged pedestal. The V-shaped surface of the pedestal is vertical with the upper flat surface of the flat plate to form measurement reference. The top surface of the pedestal is connected with a position-adjustable measuring end which is composed of the vertical rod, the horizontal rod and the meter tool. The tooth die is a section of a coaxial step round sleeve which is small in the upper portion and big in the lower portion. The top surface and the bottom surface of the vertically-positioned tooth die are parallel, and the top surface is provided with an inner tooth ring which is matched with a workpiece to be detected. Tooth part positioning reference adopted in the detection tool is consistent with design reference, so that the installation is free of positioning errors, and the detection precision is high. Moreover, as an open-type detection structure is adopted, the workpiece can be assembled and disassembled conveniently, the detection efficiency is high, and the detection tool is especially suitable to be used in production sites.

Description

technical field [0001] The invention relates to a checking tool for measuring relative dimensions of mechanical parts, in particular, the invention relates to a checking tool for spherical height of a planetary bevel gear of an automobile differential. Background technique [0002] The planetary bevel gear of automobile differential is a kind of transmission part. The back of its bevel gear is a spherical surface. The spherical surface cooperates with the supporting parts and has high requirements for shape and position accuracy. Due to the special structure, precision forging technology has been widely used in this industry to realize forming and manufacturing, and then position the finishing axle hole and spherical surface through the tooth surface. The horizontal height from the spherical surface to the tooth surface is a relative dimension, and it is difficult to directly measure it with the existing general inspection tools. In production, only items such as pallets and...

AI Technical Summary

Problems solved by technology

The horizontal height from the spherical surface to the tooth surface is a relative dimension. It is not easy to measure directly with the existing general inspection tools. Only clamps, templates and other items can be used for qualitative inspection in production.

The production site lacks the necessary quantitative inspection tools, and the size out-of-tolerance problem cannot be found and corrected in time, which may cause batch scrapping

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