A kind of projection welding bolt torque detection device and its detection method

Abstract

The invention discloses a projection welding bolt torque detection device and a detection method thereof, which belong to the field of automobile body manufacturing and detection. In order to solve the problem of time-consuming and labor-intensive detection methods, increase the labor intensity of detection personnel, increase the detection cost, and fail to detect welded bolts. The problem of the projection welding bolt, a projection welding bolt torque detection device, the device includes a fixture connected with the threaded end of the projection welding bolt, a sleeve set on the fixture, and a tapered block set on the sleeve , the distance measuring wrench matched with the conical block, the lock nut set on the sleeve and the spring set on the sleeve and connected to the conical block and the lock nut at both ends; it can detect the welded projection welding bolts, Cooperating with different fixtures can easily detect the torque of various parts; it can quickly and batch detect whether the torque of projection welding bolts meets the requirements.

Description

technical field [0001] The invention belongs to the field of automobile body production and detection, and relates to a detection device, in particular to a projection welding bolt torque detection device and a detection method thereof. Background technique [0002] In the automobile manufacturing industry, the connection of components is generally completed by solder joints, weld seams, bolts and glue. Because of the reliability and practicability of projection welding bolt connection, it is widely used in automobile body and chassis. After the projection welding bolts are welded, it is necessary to ensure the welding quality of the projection welding bolts. Generally, the welding quality is detected by detecting the torque of the projection welding bolts. At present, there are two methods for detecting the torque of projection welding bolts. One is to weld the projection welding bolts on the specified sheet metal parts, and use destructive means such as wrench tapping to...

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Problems solved by technology

[0003] According to the deficiencies of the prior art above, the technical problem to be solved by the present invention is to propose a projection welding bolt torque detection device and its detection method, the set torque is set by the lock nut, and the friction transmission torque between the tapered block and the tapered shaft , which solves the problem that the existing detection methods are time-consuming and laborious, increases the labor intensity of the detection personnel, increases the detection cost, and cannot detect the welded projection welding bolts. The invention can detect the welded projection welding bolts, and it can be conveniently detected with different fixtures The torque of various parts; it can quickly and batch detect whether the torque of projection welding bolts meets the requirements

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