Automatic measurement method for working edge straightness of knife-edge ruler

Abstract

The invention discloses a method for automatically measuring the straightness of the working edge of a knife-edge ruler, which comprises the following steps: S1, leveling the ground ruler; S2, manually placing the knife-edge ruler; S3, adjusting the standard knife-edge Adjust the gap between the ruler and the standard gauge block; S4, clamp and position the knife-edge ruler and the standard knife-edge ruler; S5, adjust the position of the laser and the spectrometer; S6, respectively adjust the standard knife-edge ruler and the knife-edge S7, the mobile device drives the light measuring device to return to the initial position; S8, drives the knife-edge straightedge and the standard knife-edge straightedge to rotate, and then moves and measures. The invention enables the knife-edge ruler and the standard knife-edge ruler to realize movement detection respectively, and can feed back the detection signal to the control system, realize the calculation of the detection data through the control system, compare it with the standard data, and then automatically distinguish The straightness of the working edge of the knife-edge ruler.

Description

technical field [0001] The invention relates to the technical field of precision measurement, and more particularly relates to a method for automatically measuring the straightness of the working edge of a knife-edge ruler. Background technique [0002] Knife-edge straightedge is a kind of measuring instrument whose measuring surface is edge-shaped and used to measure the plane shape error of workpieces. It is widely used in the flatness and straightness detection fields of flat plates, flat rulers, machine tool tables, guide rails and precision workpieces. , has the advantages of simple structure, light weight, no rust, convenient operation, and high measurement efficiency. 400mm, 500mm and other specifications. [0003] The verification basis of the knife-edge ruler is JJG 63-2007 "Knife-edge ruler" verification regulations. The straightness of the working edge of the knife-edge ruler is verified by using a grinding surface with an effective length not less than the lengt...

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved in the present invention is to provide a method for automatically measuring the straightness of the working edge of a knife-edge ruler, so as to solve the problem that the traditional calibration method for the straightness of the working edge of a knife-edge ruler has a long time for building and disassembling the standard gap, Human factors have great influence, low verification efficiency, easily affected verification results, and low detection efficiency, so as to avoid relying on human eye observation and experience to judge the straightness of the working edge of the knife-edge ruler, so as to improve detection accuracy and detection efficiency. Efficiency, in order to achieve the purpose of automatic verification

Images