Periscopic image measurement instrument

Abstract

The invention discloses a periscopic image measurement instrument. The periscopic image measurement instrument takes a triaxial CNC (Computerized Numerical Control) moving working table as a main body and is provided with a microscope, a periscope eyepiece, a CCD (Charge Coupled Device), a lighting system, an electrical control card and a personal computer. The triaxial moving working table can be controlled by the computer to be driven by the electrical control card to realize programmed control. The personal computer is provided with an image acquisition card to receive a workpiece image acquired by an optical imaging system comprising the microscope and the CCD. The periscope eyepiece is arranged at the lower end of the microscope and comprises a connecting pipe, a prism assembly and a transmission assembly. The prism assembly takes a prism as a main body and is externally provided with fixed, connected and rotated parts. The transmission assembly comprises a micromotor and a gear, the main body of the micromotor is fixed with the connecting pipe, a drive gear is fixed on a motor shaft, and the drive gear is directly engaged with the gear of the prism assembly. The micromotor drives the prism assembly to rotate to adjust orientation of a reflecting surface of the prism when the micromotor is rotated.

Description

technical field [0001] The invention is a special image measuring instrument, which solves the problem that ordinary image measuring instruments cannot measure the side wall of a workpiece and the inner wall of a hole by adopting a periscope objective lens, and greatly broadens the application range of the image measuring instrument. Background technique [0002] The image measuring instrument is an emerging geometric quantity measuring instrument, which can efficiently complete the measurement of two-dimensional dimensions. Compared with the traditional contact coordinate measuring machine, the image measuring instrument has absolute advantages in the measurement of two-dimensional plane dimensions, but due to It is limited to two-dimensional measurement and simple height measurement, which seriously limits the application range of the image measuring instrument. [0003] At present, the image measuring instrument needs to use auxiliary means such as prisms to measure the s...

AI Technical Summary

Problems solved by technology

[0002] The image measuring instrument is an emerging geometric quantity measuring instrument, which can efficiently complete the measurement of two-dimensional dimensions. Compared with the traditional contact coordinate measuring machine, the image measuring instrument has absolute advantages in the measurement of two-dimensional plane dimensions, but due to It is limited to two-dimensional measurement and simple height measurement, which severely limits the application range of image measuring instruments

[0003] At present, the image measuring instrument needs to use auxiliary means such as prisms to measure the side wall. This method has great limitations. It is necessary to place prisms at various positions to be measured, and it cannot realize the measurement of the inner wall of the hole.

[0004] In the literature in recent years, no reports have been found to solve this problem

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