Multifunctional standard device for precision calibration of precision parts and equipment

Abstract

The invention belongs to the technical field of precision testing, and provides a multifunctional standard device for precision calibration of precision parts and equipment. The multifunctional standard device is of an overall symmetrical structure, a middle main body part is a solid cuboid with a rectangular groove, two radial reference cylindrical surfaces and two center holes are formed in the two ends of the middle main body part, and grinding wheel grinding undercuts are formed between the radial reference cylindrical surfaces and the cuboid. The multifunctional standard device provided by the invention integrates various calibration parameters, can realize measurement of surface straightness, planeness and perpendicularity errors of precision parts, and also can measure radial circle run-out of a center on equipment, coaxiality of the center, and parallelism between the motion direction of a measuring head or a tool rest and the rotation axis of a main shaft; the problem that an existing cylindrical inspection rod is single in function and precise in manufacturing can be solved, the economical efficiency and using portability of error measurement are remarkably improved, and the cylindrical inspection rod is suitable for occasions such as precise part measurement, measuring instrument calibration and equipment delivery inspection and has good market application scenes and popularization value.

Description

technical field [0001] The invention belongs to the technical field of precision testing and provides a multifunctional standard used for precision calibration of precision parts and equipment. Background technique [0002] Straightness, flatness, parallelism, perpendicularity, and coaxiality are the most common form and position tolerances of parts, which are mostly tested by three-coordinate measuring instruments, optical or laser measuring systems, standard measuring tools or inspection sticks. [0003] The three-coordinate measuring instrument can obtain the coordinates of each measuring point on the measured object by placing the measured object in the three-coordinate measurement space. After calculation, the geometric size and shape error of the measured object can be obtained, and the geometric size of the workpiece can be realized. , Precise detection of shape and position errors; but the three-coordinate measuring instrument is large, not portable, expensive, and c...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of single function and precision manufacturing of the existing cylindrical test rods, the present invention proposes a multifunctional standard for precision calibration of precision parts and equipment, which can be used for precision parts and equipment straightness, flatness, parallelism, perpendicularity Detection of errors such as accuracy, radial runout of the upper top, and coaxiality of the top

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