关键词: 同步器齿毂；滑块槽对称度；检测装置；汽车同步器

Abstract: In the actual production, the existing detection methods, such as vernier caliper and three coordinates, have the disadvantages of large detection error, or low detection efficiency. In view of these detection shortcomings, through the technical requirements of the symmetry, the structural characteristics of the spline outside the involute and the actual processing error of the slide groove are analyzed, and a special measuring device that can quickly and accurately measure the symmetry of the groove of the automobile synchronizer is designed. After the field use verification, the inspection tool is reasonable design, small structure, simple and practical, and can achieve the measurement accuracy of 0.001 mm, which solves the accurate measurement problem of the symmetry of the synchronous tooth hub slide groove in the production.

Key words: Synchronizer tooth hub; Slide groove symmetry; Detection device; Automobile synchronizer