Telecentric light path fine tuning device and method for measuring shaft workpiece

Abstract

The invention relates to a telecentric light path fine tuning device and method for measuring a shaft workpiece. The telecentric light path fine tuning device comprises a base, the front part of the base is a measuring position for fixing the shaft workpiece, a telecentric light source is installed on the base at one side of the measuring position, a prism refraction mechanism corresponding to the telecentric light source is installed on the base at the other side of the measuring position, a measuring mechanism capable of adjusting a light path is installed on the base; and the measuring mechanism and the prism refraction mechanism are arranged adjacent to each other and correspond to each other. According to the telecentric light path fine tuning device and method for measuring the shaft workpiece, a front and back adjusting mechanism and a locking mechanism are arranged on the base, so that high-precision guiding and light path adjustment are realized; and (2) a prism folding mode is adopted, so that the width direction of the telecentric measurement structure is reduced, the space size in the depth direction of equipment is effectively utilized, and the size of the equipment is reduced.

Description

technical field [0001] The invention relates to a telecentric optical path fine-tuning device and method for measuring shaft workpieces, and relates to the field of measurement. Background technique [0002] When the telecentric lens is used for measurement, its disadvantages are: the difficulty of inaccurate positioning of the working distance of the telecentric lens; the large size of the telecentric lens makes it difficult to achieve fine-tuning of wire-level displacement; It is very long, and the equipment cannot be miniaturized; the traditional line scan camera and the telecentric lens are connected by threads, which will cause the back intercept of the camera to be inaccurate, resulting in blurred imaging. [0003] The adjustment method of the existing patent CN110160445B telecentric lens is mainly realized by adjusting the working distance of the workpiece to be measured. Experience requirements are high. In the present invention, by adjusting during the manufacturi...

AI Technical Summary

Problems solved by technology

[0002] When the telecentric lens is used for measurement, its disadvantages are: the difficulty of inaccurate positioning of the working distance of the telecentric lens; the large size of the telecentric lens makes it difficult to achieve fine-tuning of wire-level displacement; It is very long, and the equipment cannot be miniaturized; the traditional line scan camera and the telecentric lens are connected by threads, which will cause the back intercept of the camera to be inaccurate, resulting in blurred imaging

[0003] The adjustment method of the existing patent CN110160445B telecentric lens is mainly realized by adjusting the working distance of the workpiece to be measured. higher experience requirement

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