Device for testing characteristics of junction surfaces between roll balls and roller paths

Abstract

The invention discloses a d device for testing characteristics of junction surfaces between roll balls and roller paths. The device comprises the two less-half-cylindrical roller paths which are arranged in a perpendicular mode. The roll balls are arranged in the roller paths. The roller paths are arranged on test pieces. The test pieces are connected with a displacement sensor and a force sensor. The test pieces comprise an upper test piece and a lower test piece. The upper test piece and the lower test piece are both of a cylinder shape and are arranged coaxially. The two less-half-cylindrical roller paths are arranged in the middle position of the upper test piece and the middle position of the lower test piece respectively. The displacement sensor and the force sensor are connected with the upper test piece. According to the device for testing the characteristics of the junction surfaces between the roll balls and the roller paths, the two roller paths which are arranged in the perpendicular mode are used for restraining the movement of the roll balls, the problem that the roll balls are difficult to position in the testing process is solved, and therefore the characteristic data of the junction surfaces between the roll balls and the roller paths can be obtained. The device for testing the characteristics of the junction surfaces between the roll balls and the roller paths not only can provide a basis for the analysis of the characteristics of a junction part of guide rails, but also has significance in examining the correctness of a characteristic model of the junction surfaces between the roll balls and the roller paths.

Description

technical field [0001] The invention belongs to the technical field of mechanical design and manufacture, and in particular relates to a test device for the characteristics of the joint surface of a ball and a raceway. Background technique [0002] The rolling linear guideway pair is to place rolling elements (balls or rollers) between the guide rail block and the guide rail bar (supporting guide rail), so as to realize the extremely low (rolling) friction transmission between the guide rail block and the guide rail bar, so the rolling linear guide rail pair is widely used. It is used in CNC equipment such as CNC machine tools and robots, and is the main functional component for low-friction feed of moving parts in CNC equipment. The part between the guide rail block and the guide rail bar is called the joint of the rolling linear guide rail. The stiffness of the joint of the rolling linear guide directly affects the static and dynamic performance of the machine tool struct...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a test device for the characteristics of the joint surface of the ball and the raceway, which solves the problem of difficulty in testing the contact characteristics of the joint surface composed of the ball and the raceway in the prior art

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