Circumference measuring instrument

Abstract

The invention relates to a circumference measuring instrument which comprises Y shafts, a cable protective chain, a rotary motor, a workpiece positioning jig, a planetary speed reducer, an auger X shaft, a CCD camera, a displacement sensor, a carrier module and an operation table. During actual use, an operator fixes a workpiece to be tested through the workpiece positioning jig, then the carrier module drives the workpiece to move inward along one Y shaft, meanwhile, the CCD camera and the displacement sensor on the auger X shaft move to the position above the side, carrying the workpiece, of the carrier module, when the workpiece is right in the measurement range of the CCD camera and the displacement sensor, the rotary motor drives the workpiece to rotate, the workpiece starts to be measured, the carrier module on the Y shaft on the other side is moved to the front end of the operation table, the operator can conveniently place the workpiece in the measuring instrument, the steps are repeated, and the Y shafts on the two sides are used for measuring alternatively.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a circumference measuring instrument. Background technique [0002] Electronic technology is an emerging technology developed at the end of the nineteenth century and the beginning of the twentieth century. It developed the fastest and was most widely used in the twentieth century, becoming an important symbol of the development of modern science and technology. [0003] The first generation of electronic products centered on the electron tube. At the end of the 1940s, the first semiconductor triode was born in the world. With the characteristics of small size, light weight, power saving, and long life, it was quickly used by various countries and replaced electronic tubes in a large range. In the late 1950s, the first integrated circuit appeared in the world, which integrated many transistors and other electronic components on a silicon chip, making electronic products m...

AI Technical Summary

Problems solved by technology

The detection of the outer diameter of circular products is becoming more and more important, but the corresponding detection equipment has not been improved. At present, there is no one that uses the principle of equidistant between the boundary of circular products and the center of the circle, and combines rotation and displacement detection methods with a simple structure. , An easy-to-use circumference measurement device that uses CCD and 2D laser displacement sensors to assist in measurement

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