Bolt following rotation preventing device

Abstract

The invention relates to the technical field of locking devices, and discloses a bolt following rotation preventing device which comprises a sliding plate, a mounting plate and two plate sleeves. The plate sleeves are provided with sleeved connection parts, sleeve holes are formed in the sleeved connection parts, mounting holes and sliding grooves are formed in the mounting plate, the sleeved connection parts are inserted into the mounting holes, fixing pieces are inserted into the sliding grooves, the fixing pieces can slide along the sliding grooves, the fixing pieces are connected with the plate sleeves and the sliding plate, a clamping groove is formed in the sliding plate, and a limiting hole is formed in the position, corresponding to the clamping groove, of the mounting plate. A rotating shaft sequentially penetrates through the clamping groove and the limiting hole, the two ends of the rotating shaft are connected with the sliding plate and the mounting plate correspondingly, the clamping groove is provided with a limiting part and an unloading part which communicate with each other, the unloading part communicate extends towards the two sides of the limiting part, the rotating shaft is provided with an abutting connection part connected with the limiting part, the abutting connection part and the limiting part can be disconnected or connected by driving the rotating shaft to rotate, and the abutting connection part is connected in the unloading part in a sliding manner. According to the technical scheme, the bolt following rotation preventing device can avoid bolt following rotation, and the potential safety hazards that hands are pinched and people are hurt are avoided.

Description

technical field [0001] The invention relates to the technical field of locking devices, in particular to a bolt anti-rotation device. Background technique [0002] At present, the direct-drive electric constant torque gun has been widely used in various bolt and nut tightening occasions due to its advantages of high-precision torque control and intelligence. The through-bolt connection structure (bolt holes are smooth holes, which need to be tightened with bolts and nuts at the same time) is widely used in various assembly occasions such as automobile assembly. Because of the working principle of the direct drive electric constant torque gun, when the nut is tightened with the direct drive electric constant torque gun, the bolt will rotate, and it takes a lot of torque to clamp the bolt to prevent the rotation, which cannot be used by hand. The wrench clamps the bolt to prevent rotation. In order to prevent the bolt from rotating, two methods are generally adopted: [000...

AI Technical Summary

Problems solved by technology

[0006] 1. When manually using the extended wrench to clamp the bolt to prevent rotation, it is necessary to increase the number of operators who specialize in clamping the bolt to prevent rotation, thereby increasing the production cost; the safety hazard of pinching and injuring people is large; the labor intensity of the operation is high;

[0007] 2. When using a specially designed direct-drive electric constant-torque gun with non-standard tooling to prevent rotation, the overall structure of the direct-drive electric constant-torque gun is complex and the manufacturing cost is high; the direct-drive electric constant-torque gun is bulky and inconvenient to operate ;The direct-drive electric fixed torque gun has poor versatility, and it is very easy to interfere with the workpiece and cannot be used; in the process of use, it is impossible to avoid the safety hazard of pinching hands and hurting people

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