Full range accuracy detection device for shaft angle encoder based on reciprocal rotation angle

Abstract

The invention discloses a full-scale accuracy detection device for a shaft angle encoder based on reciprocal rotation angles, which includes a housing, an inner rotating platform rotor, an inner rotating platform stator, an outer rotating platform rotor, a rotating main shaft, a reflector, and an outer rotating platform stator , Autocollimator; the shell of the tested shaft-angle encoder is fixed on the shell, and the main shaft of the tested shaft-angle encoder is coaxially fixedly connected with the stator of the inner rotating platform and the rotor of the outer rotating platform through the connecting piece; the inner rotating platform The rotor is fixedly connected to the rotating shaft; the rotor of the outer rotating platform is fixedly connected to the stator of the inner rotating platform; the stator of the outer rotating platform is fixed on the casing; The centers of the light holes are located on the center line of the light pipe of the autocollimator.

Description

technical field [0001] The invention relates to the technical field of precision shaft angle measurement precision detection, in particular to a shaft angle encoder precision detection device, which belongs to the technical field of angle measurement. Background technique [0002] Angle measurement accuracy is an important technical indicator of the shaft angle encoder. At present, the common detection method for the accuracy of the shaft angle encoder is: connect the polyhedral prism with the shaft angle encoder to be tested coaxially, and then use the autocollimator to measure the polyhedron Each surface of the body is self-aligned and measured, and the difference operation is performed with the output data of the shaft angle encoder to obtain the error value. However, this detection method has defects such as limited detection points, long detection cycle, and cumbersome operation. A better detection method for the accuracy of the shaft encoder has always been the researc...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that the accuracy of the reference encoder used determines the overall accuracy of the detection device, and this method is not applicable in the technical field of high-precision encoder detection

However, the defects exposed by this method are also obvious: high device cost, difficult optical debugging, high environmental requirements, long detection cycle, difficult to adapt to efficient industrial production sites

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