An automatic posture adjustment device for residual stress testing

Abstract

The invention provides an automatic posture adjustment device for residual stress testing, which includes a mobile platform, a lifting mechanism, a parallelogram-like transmission mechanism, a test probe and a plurality of distance measuring sensors. The lifting mechanism is installed on the mobile platform, similar to The parallelogram transmission mechanism is installed on the lifting mechanism; the parallelogram-like transmission mechanism can rotate around an axis perpendicular to the axis of the lifting mechanism as a whole; the test probe and a plurality of distance measuring sensors are fixed on the parallelogram-like transmission mechanism, The test probe and the plurality of distance measuring sensors are on the same plane, and the distance measuring sensors all point to a specific point coaxial with the test probe. Compared with the prior art, the present invention has the following advantages: the automatic adjustment of the attitude of the residual stress test probe is realized; the measurement and debugging process is simplified, the test cost is reduced, and the test time is saved; unmanned testing can be realized to avoid radiation.

Description

technical field [0001] The invention belongs to the technical field of testing equipment, and in particular relates to an automatic attitude adjustment device for residual stress testing. Background technique [0002] The residual stress testing equipment calculates the residual stress value through the formula according to the difference of the X-ray emission angle of the material. During the test, a beam of X-rays is used to irradiate the measured surface from different directions, and the reflected X-rays are received by the ray sensor for analysis and processing. Finally, after applying some known material performance parameters, the distribution of the residual stress stress field on the surface of the part can be measured, and the degree of surface strengthening of the part can be determined. important part of the assessment. [0003] The test head of the existing equipment is fixed to the horizontal platform through the mounting bracket, and the test probe is vertica...

AI Technical Summary

Problems solved by technology

In the process of use, there are the following disadvantages: 1. Since the test probe is required to be perpendicular to the surface of the tested part before subsequent measurement can be performed, it is necessary to manually adjust the posture of the tested part so that the tested surface is perpendicular to the probe, which consumes a lot of testing 2. For some curved surface parts, it is difficult to realize the verticality of the test probe and the tested part by manpower, which makes it impossible to test such parts; 3. Since the test head and the horizontal platform are fixed, mobile and portable measurement cannot be realized, which limits scope of use

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