Full-automatic contact type measuring equipment and method

Abstract

The invention relates to full-automatic contact type measuring equipment and method. The full-automatic contact type measuring equipment comprises a test bench, a longitudinal sliding table and a cross beam, wherein the longitudinal sliding table is longitudinally and slidably arranged on the test bench and can be used for fixedly placing a measured workpiece, the cross beam is suspended above thetest bench, and at least one measuring arm which can move back and forth along the cross beam is arranged on the cross beam. Compared with the prior art, the equipment in the invention is the equipment specially for rapid and high-precision measurement of the geometric dimension of the large-size workpieces with pores and burrs on the surface, the size of the workpiece is measured by means of a contact type displacement sensor, the defects of the existing measuring method are avoided, so that the influence of the pores and burrs on the surface of the workpiece on precision can be avoided by the measuring equipment, the measurement of the large-size workpiece is more efficient and accurate, relatively complicated workpiece shapes can be adapted to, various dimensions of the thickness, theperpendicularity, the parallelism, the flatness and the like can be measured; meanwhile, the cost of the measuring equipment is lower, and the maintenance and the calibration are simpler and more convenient.

Description

technical field [0001] The invention belongs to the technical field of part surface dimension measurement, and relates to a fully automatic contact measurement device and method. Background technique [0002] It is usually difficult to ensure the accuracy and efficiency of multi-point measurement of length, width, height and other dimensions of large-scale porous material workpieces with rough surfaces. In the actual production of such workpieces, most of them use manual measurement. The disadvantages are that the human measurement error is large, the measurement efficiency is low, and the labor intensity is high. Generally, only random inspection can be realized, and there is a risk of quality loss. In addition, the traditional three-coordinate measuring equipment obtains the size of the workpiece by recording the position where the sensor touches the workpiece, which requires the equipment itself to ensure high dimensional accuracy at each measurement position, making trad...

AI Technical Summary

Problems solved by technology

[0004] 1. There are usually pores and burrs on the surface of the workpiece, which interfere with the optical measurement results;

[0005] 2. This solution can only scan the upper surface of the workpiece, and cannot measure the side and bottom surfaces, so it cannot fully reflect the geometric dimensions of the workpiece

In addition, defects at the edge of the upper surface can interfere with optical measurements

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