Tool for detecting size from internal annular groove of axle hole of half axle gear to outer end surface

Abstract

The invention discloses a tool for detecting the size from an internal annular groove of an axle hole of a vehicle half axle gear to the outer end surface. An axle die is paired with an axle wedge to form an axle whose cross section is circular, and the axle cooperates with the work-piece axle hole. The outer circular wall of the axle die is provided with a segment of annular ridge which cooperates with the internal annular groove of the work-piece axle hole, and a bottom plane of the axle die is an inclined plane whose axial inclination angle alpha equals 3-7 degree. The axle wedge is a piece whose cross section is semicircular, a bottom plane of the axle wedge is also an inclined plane whose axial inclination angle alpha equals 3-7 degree, the inclination angle alpha of the inclined plane of the axle wedge is opposite to that of the inclined plane of the axle die. The end, in the work-piece axle hole, of the axle wedge is provided with a pull bar which extends outwardly. The annular groove to be measured in the work-piece axle hole is converted into an outer measuring structure via the axle die, such structure provides convenience for accurate measurement by general measuring tools, and the detection efficiency is high. The tool of the structure has no special requirements for detection conditions, detection is carried out directly, and the tool is especially suitable for online detection.

Description

technical field [0001] The invention relates to a checking tool for measuring mechanical parts, in particular, the invention relates to a checking tool for the distance from the outer end surface of the built-in ring groove of the shaft hole of the axle gear of the vehicle. Background technique [0002] The side gear is the transmission part that directly transmits the torque in the automobile differential. In addition to the axial inner spline, there is usually a ring groove in the shaft hole. Due to the tolerance requirements for the size of the built-in ring groove from the outer end face, corresponding detection means must be equipped in the manufacturing process to achieve the expected quality. Due to the small volume of vehicle gears, the internal shaft hole is usually not larger than φ20mm, and commercially available general measuring tools cannot be inserted into the shaft hole for measurement. For this practical problem, most manufacturers in this industry only use...

AI Technical Summary

Problems solved by technology

In general, the existing quantitative detection equipment can achieve accurate measurement, but it has high requirements for detection conditions and low detection efficiency. It is only suitable for product quality type inspection in a specific environment, and is not suitable for on-line detection on the production site.

Due to the lack of quantitative inspection tools at the production site, batch out-of-tolerance accidents are prone to occur during the production process

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