Gear ring length dimension gauge

Abstract

The invention discloses a gear ring length dimension gauge. The gauge comprises a base, a slider, a shaft seat, an instrument and an instrument frame. The instrument frame is mounted on the base and consists of a vertical rod and a horizontal rod which are intersected with each other; the instrument is assembled at the end of the horizontal rod. An internal open groove is formed in a plate surface of the base; the two sides of the open groove are provided with upward bevels. The bottom surface of the slider is matched with the upward bevels on the two sides of the open groove of the base to form a straight rail structure; the inner side surface of one upwards-bent side is provided with a V-shaped groove vertical to the straight rail. A circular bead is arranged at the top end of the shaft seat and has clearance fit with an inner hole of a work-piece; the shaft seat is moved so that the outer wall of a main shaft section is located close to the bevel of the vertical V-shaped groove of the slider. The gear ring length dimension gauge disclosed by the invention belongs to mechanical measurement and is low in requirements on detection condition, quite simple in structure but precise in measurement results, convenient to operate and especially suitable for being arranged in a production field. One-line detection is beneficial for finding out quality deviation in time, and occurrence of batch scrap accidents is prevented.

Description

technical field [0001] The invention relates to a checking tool, in particular to a length checking tool, especially a checking tool for measuring the length of a thin-walled ring gear. Background technique [0002] The ring gear in the automobile gearbox is a transmission part with many structural elements and high requirements for shape and dimensional accuracy. Its manufacturing quality affects the transmission quality of the whole vehicle. Due to the weak rigidity of the thin-walled ring gear, slight improper clamping and cutting during the manufacturing process will cause deformation. Therefore, the quality inspection of the ring gear in the production line is very important. If the operator lacks effective inspection tools, Qualitative testing cannot detect deviations in time, resulting in batch quality accidents. Some length dimensions in the inner hole of the ring gear are matched with the matching base parts. These internal length dimensions are related to the oute...

AI Technical Summary

Problems solved by technology

Due to the weak rigidity of the thin-walled ring gear, slight improper clamping and cutting during the manufacturing process will cause deformation. Therefore, the quality inspection of the ring gear in the production line is very important. If the operator lacks effective inspection tools, Qualitative testing cannot find deviations in time, resulting in batch quality accidents

Some length dimensions in the inner hole of the ring gear are matching dimensions with the matching base parts. These internal length dimensions are related to the outer wall of the ring gear. Due to the misalignment of the measurement base, it cannot be directly detected with conventional measuring tools, and the quality cannot be guaranteed by indirect measurement.

In actual production, the industry only uses three-coordinate measuring instruments for quantitative testing when doing type inspections. Although three-coordinate measuring instruments can achieve accurate measurements, there are shortcomings such as high testing conditions, time-consuming, and high cost.

In addition, this kind of off-line detection is not conducive to the quality management of the production site, and the untimely detection may easily lead to accidents of size and batch out-of-tolerance

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