External diameter rapid detection device

Abstract

The invention relates to the technical field of detection equipment, in particular to an outer diameter rapid detection device which comprises a base, a lower base body, a shaft core and a measuring assembly. The lower base body is a regular triangular prism, the lower end is vertically fixed on the base, the upper end is fixedly connected with the shaft core, and each side vertical face of the regular triangular prism is provided with a sliding rail parallel to the bottom edge of the regular triangular prism; the number of the measuring assemblies is the same as that of the side vertical faces of the lower base body, each measuring assembly is composed of a measuring block, a sliding groove and a sensor, the measuring block is composed of a left half part and a right half part, the back face of the left half part is matched with the corresponding sliding rail through the sliding groove, and the left half part and the right half part are separated by an upper expansion joint and a lower expansion joint and are connected into a whole through a middle suport. A positioning opening is formed in the top end of the expansion joint on the upper side, a detection opening is formed in the bottom of the expansion joint on the lower side, a sensor is fixed at the lower end of the left half part, an output interface of the sensor is electrically connected with an upper computer, and a measuring head of the sensor horizontally extends into the detection opening and is aligned with the right half part on the right side of the detection opening.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to a rapid detection device for outer diameter. Background technique [0002] The three-ball joint is the most commonly used axial sliding constant velocity joint, which is widely used on the front and rear drive shafts of automobiles. The tripod is a basic component of the tripod joint, and the outer diameter of the tripod journal is an important indicator of assembly reliability. The existing method of measuring the outer diameter is usually measured with a micrometer. The outer diameter of the tripod pin assembly is usually measured with a micrometer after the assembly is assembled. In mass production and batch inspection, this measurement method has a slow measurement speed, and the differences in workers' operation methods and proficiency will affect the measurement data, so this measurement method is not conducive to the inspection of mass products. Contents of ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned background technology, aiming at the characteristics of the product structure of the three-ball pin and the three-pin frame, to provide a fast detection device for outer diameter, to solve the slow measurement speed and the difference in operation methods in mass production The problem of measurement error caused by

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