Projection welding bolt torque detection device and detection method thereof

Abstract

The invention discloses a projection welding bolt torque detection device and a detection method thereof and belongs to the field of automobile body production, manufacturing and detection.The device and method aim to solve the problems that an existing detection means wastes time and labor, the labor intensity of detection personnel is increased, detection cost is increased, and a welded projection welding bolt can not be detected.The projection welding bolt torque detection device comprises a clamp connected with the threaded end of a projection welding bolt, a sleeve arranged on the clamp in a sleeving mode, a conical block arranged on the sleeve in the sleeving mode, a ranging wrench matched with the conical block, a locking nut arranged on the sleeve, and a spring arranged on the sleeve, wherein the two ends of the spring are connected with the conical block and the locking nut respectively.The device can detect the welded projection welding bolt and can be matched with different clamps so that torques of various parts can be conveniently detected, and whether the torque of projection welding bolts meets requirements or not can be quickly detected on a large scale.

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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