Measuring device and method for traveling accuracy of rolling linear guide rail pair

Abstract

The invention discloses a rolling linear guide rail pair walking accuracy measuring device and a measuring method. The device includes a bed body part, which is used to support the rolling linear guide rail pair to be measured and other parts, and provides a measurement reference; an air-floating drive part is used to drive the The slider driving part moves axially along the guide rail of the rolling linear guide pair to be tested; the slider driving part is used to drive the slider of the rolling linear guide pair to be tested and the guide rail pair measuring part moves along the guide rail axial direction; the guide rail pair measures Components used to measure the walking accuracy of the slider during motion. The method is realized based on the above-mentioned device, and the height and size deviation of the top surface of the slider relative to the bottom surface of the guide rail in the rolling linear guide pair, and the width and size deviation of the side of the slider relative to the side reference of the guide rail can be obtained. The device structure and the measurement method of the invention are simple, and the friction force is small during the movement of the parts, the measurement method is less affected by environmental factors, the error of the final measurement result is small, the precision is high, and it has broad application prospects.

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.

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