一种角接触球轴承内圈沟径测量装置

本发明涉及轴承测量技术领域，具体地说是一种角接触球轴承内圈沟径测量装置，包括底板、背板及测量部件，背板垂直设置于底板的上方，测量部件设置于背板上，测量部件包括下测量组件及上测量组件。下测量组件包括下滑板及由下滑板带动的两个下定位辊，上测量组件包括上滑板及由上滑板带动的上定位辊。上定位辊与两个下定位辊组成用于测量工件轴承内圈的外周面沟道直径的测量定位三点定位工装。本发明通过工件轴承内圈的沟道形状与各定位辊的配合，并通过恒定弹簧力形成柔性接触，实现沟径本身自为基准定位的同时取得测量结果，测量效果准确性高，测量稳定性强，且实现了角接触球轴承内圈沟径自动测量，同时提高了测量效率和准确性。

The present invention relates to the technical field of bearing measurement, and specifically refers to a groove diameter measuring device for the inner ring of angular contact ball bearings. The device comprises a base plate, a back plate and a measuring component. The back plate is vertically arranged above the base plate, and the measuring component is mounted on the back plate. The measuring component includes a lower measuring assembly and an upper measuring assembly. The lower measuring assembly comprises a lower slide plate and two lower positioning rollers driven by the lower slide plate, while the upper measuring assembly comprises an upper slide plate and an upper positioning roller driven by the upper slide plate. The upper positioning roller and the two lower positioning rollers form a three-point positioning fixture for measuring the groove diameter of the outer peripheral surface of the inner ring of the bearing workpiece. Through the cooperation between the groove shape of the inner ring of the bearing workpiece and each positioning roller, and the formation of flexible contact via constant spring force, the present invention achieves self-reference positioning of the groove diameter itself while obtaining measurement results. The device features high measurement accuracy and strong measurement stability, realizes automatic measurement of the groove diameter of the inner ring of angular contact ball bearings, and simultaneously improves measurement efficiency and accuracy.