Tilt sensor based straightness measuring instrument and method

Abstract

The invention discloses a tilt sensor based straightness measuring instrument which comprises a measuring platform and a controlling device. The invention further discloses a tilt sensor based straightness measuring method. When a stepping motor rotates to drive a belt pulley to rotate anticlockwise, measuring bridge plates are driven to move right linearly along a guide slot of a guide rail; when magnetic switches on the measuring bridge plate pass by the position of each magnetic column, the magnetic switches actuate once, the switching value signals generated due to the actuation of the magnetic switches are received by a lower computer, and the position tilt angle picked up by using the tile sensor at the moment is collected at the same time, thus the data of a series of coordination points can be obtained; and when the measuring bridge plates move right and contact limiting switches, the measurement in one position finishes, the lower computer finishes collecting data and transmits the data to an upper computer so that the data is processed by measuring software, thus the straightness evaluation result of the measured straight line section is obtained.

Description

technical field [0001] The invention belongs to the technical field of measurement, and relates to a straightness measuring instrument based on an inclination sensor, and also relates to a method for measuring straightness by using the device. Background technique [0002] Straightness measurement is one of the most basic items in the field of geometric measurement. It is the basis for measurement of geometric quantities such as flatness, parallelism, and coaxiality. It is also known as dimensional accuracy, roundness, and surface roughness, which affect product quality. It is one of the four major elements of production and is highly valued in production practice. Straightness measurement is mainly to measure the straightness error of the generatrix of the cylinder and the cone, the straightness error of the guide rail surface of the machine tool and other machines, and the linear guide surface of the workpiece, etc. [0003] Straightness measurement is one of the importan...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a straightness measuring instrument based on an inclination sensor, which solves the problems of low measurement efficiency, low degree of measurement automation, and large influence of human factors on measurement results in the existing straightness measurement technology.

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