Rolling linear guide rail pair walking precision measuring device and measuring method

Abstract

The invention discloses a rolling linear guide rail pair walking precision measuring device and measuring method, and the device comprises a bed body part which is used for supporting a to-be-measuredrolling linear guide rail pair and other parts, and providing a measurement reference; an air floatation driving part which is used for driving the sliding block driving part to move in the axial direction of a guide rail of the to-be-tested rolling linear guide rail pair; a sliding block driving part which is used for driving a sliding block of the rolling linear guide rail pair to be measured and the guide rail pair measuring part to move along the axial direction of the guide rail; and a guide rail pair measuring part which is used for measuring the walking precision of the sliding block in the moving process. The method is achieved based on the device, and the height and size deviation of the sliding block top face relative to the guide rail bottom face benchmark and the width and size deviation of the sliding block side face relative to the guide rail side face benchmark in the rolling linear guide rail pair can be obtained. The device provided by the invention is simple in structure and measurement method, small in friction force in a part movement process, relatively small in influence of environmental factors on a measurement mode, small in error of a final measurement result and high in precision, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of precision detection of a rolling linear guide rail pair, in particular to a measuring device and a measuring method for the running accuracy of a rolling linear guide rail pair. Background technique [0002] The rolling linear guide is a linear drive unit with high precision, high efficiency and long service life. It is widely used in the fields of machine tools, automobiles and aerospace. Its walking accuracy has a great influence on the performance. In order to improve the product performance of domestic rolling linear guides, it is necessary to test the walking accuracy of rolling linear guides. [0003] There are two main methods of measuring the walking accuracy of rolling linear guideways: manual measurement and automatic measurement. The manual measurement method has high requirements on the accuracy and roughness of the detection platform, high requirements on the operation of the testers, low detection ef...

AI Technical Summary

Problems solved by technology

However, because its measuring device is a non-contact laser displacement sensor, it is greatly affected by environmental factors, such as temperature, oil pollution, etc., so the error caused is also large, and it is driven by a linear motor stator mover, the design is more complicated and the cost is high.

Images