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Method for measuring straightness of super-long guide rail

A straightness and guide rail technology, which is applied to measuring devices, instruments, and optical devices, can solve problems such as low measurement accuracy, large errors, complex data processing and calculation, and achieve simple data processing, short test time, and data analysis. and the effect of simple experimental operation

Inactive Publication Date: 2013-04-03
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method for measuring the straightness of an ultra-long guide rail in order to solve the problems of low measurement accuracy, large error, and complex data processing and calculation in the existing measurement method

Method used

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  • Method for measuring straightness of super-long guide rail
  • Method for measuring straightness of super-long guide rail
  • Method for measuring straightness of super-long guide rail

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specific Embodiment approach 1

[0019] Specific implementation mode 1. Combination Figure 1 to Figure 3 Describe this embodiment, a method for measuring the straightness of an ultra-long guide rail, wherein the device involved in the method mainly includes a laser tracker 1, an ultra-long guide rail 2, a spherical fixed reflector 3, a reflector base 4, and a guide rail slide 5 ; The specific process of this method is:

[0020] 1. Plan test points; plan several test sampling points on the super-long guide rail 2 at equal intervals;

[0021] 2. Adjust the optical path; attach the reflector base 4 (magnetic) to the guide rail slide seat 5, and attach the spherical fixed reflector 3 to the reflector base 4. Due to the magnetic adsorption, the connection between the three is very After the connection is completed, adjust the optical path so that the laser tracker 1 is aligned with the first test point. Since the guide rail slide 5 is parallel to the super-long guide rail surface, measure the fluctuation of poin...

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Abstract

The invention relates to a method for measuring the straightness of a guide rail and particularly relates to a method for measuring the straightness of a super-long guide rail, which aims to solve the problems that the conventional measuring method is low in measurement precision and has large errors, and the data processing and operation are complex. According to the method, a plurality of data points on the super-long guide rail are measured and acquired through a laser tracker, the data points are subjected to spatial straight line fitting, and data information of the acquired N tested sampling points is subjected to straightness calculation by a least square fitting algorithm, thereby obtaining the straightness of the guide rail. The method provided by the invention has the beneficial effects of easiness and convenience in data analysis and experimental operation, short testing time, simplicity data processing, low testing cost and high testing efficiency.

Description

technical field [0001] The invention relates to a method for measuring the straightness of a guide rail, especially an extra-long guide rail. Background technique [0002] With the continuous development of industrial technology, super-length guide rails are being used in more and more fields, such as machine tools, transmission devices, railway tracks, etc. The straightness is the most important technical index of the guide rail, and its precision is directly related to the accuracy, reliability and stability of the equipment. [0003] At present, there are many methods for testing the straightness of guide rails. Generally, there are three methods, namely level measurement method, autocollimator measurement method and laser interferometer measurement method. [0004] The level meter measurement method is a traditional straightness measurement method, which is simple to operate, convenient to use, and low in cost. But its measurement accuracy is low, generally only up to ...

Claims

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Application Information

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IPC IPC(8): G01B11/27
Inventor 王孝坤
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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