Tighten the wrench suspension mechanism

Abstract

The invention discloses a tightening wrench suspension mechanism which comprises a connecting seat, a connecting shaft and a swing assembly, wherein the connecting seat is of a disk shape; the middle position of the connecting seat is provided with a step hole; the upper end of the connecting seat is used for being fixedly connected with a telescopic suspension rod; the connecting shaft is of a step shape; the connecting shaft is rotatably sleeved with the step hole; the swing assembly is formed by hinging an upper connecting plate, a lower connecting plate, a left connecting rod and a right connecting rod end to end into a parallelogram frame; the upper connecting plate is fixedly connected with the lower end of the connecting shaft; and the lower connecting plate is used for being fixedly connected with a tightening wrench. The tightening wrench suspension mechanism has a reasonable and simple structure and can regulate the position of the wrench for the second time when a bolt is operated and controlled to be matched with a screw cap; the electric wrench is conveniently and easily sleeved with the bolt or a nut; the tightening wrench suspension mechanism has a wide application range and is convenient and labor-saving to operate and control.

Description

technical field [0001] The invention relates to the field of engine assembly, in particular to a tightening wrench suspension mechanism. Background technique [0002] In the assembly process of the engine, it is necessary to use various electric tightening wrenches to tighten bolts and nuts of different specifications to assemble various parts. Tightening the wrench will produce a reaction torque equal to that of tightening the bolt, which increases the labor intensity and difficulty of operation for the operator. It is necessary to hang the large torque electric wrench for manipulation, and use a telescopic suspension rod to offset the reaction generated when the electric wrench tightens the bolt. moment. [0003] Generally, the suspension methods of electric wrench include wire rope suspension type, telescopic rod suspension type, and mechanical mechanism clamping type. It is necessary to additionally design an anti-torque mechanism to counteract the anti-torque generate...

AI Technical Summary

Problems solved by technology

[0003] Generally, the suspension methods of electric wrench include wire rope suspension type, telescopic rod suspension type, and mechanical mechanism clamping type. It is necessary to additionally design the anti-torque mechanism to counteract the anti-torque generated when the bolt is tightened

When using the telescopic rod suspension method, a well-shaped (or H-shaped) slide rail needs to be installed above the wrench. The telescopic suspension rod is installed on the slide rail, and the wrench is suspended through the telescopic rod. Back, left, right, up, and down in all directions, the telescopic rod can bear the reaction torque generated on the tightening wrench and the size of the tightening bolt, and there is no need to design an additional reaction torque mechanism. However, according to ergonomics, the operator When operating the electric wrench to move left and right, it is relatively laborious, and the wrench needs to be moved repeatedly every day, which increases the labor intensity of the operator

In particular, when assembling components, it is necessary to manipulate the tightening sleeve on the electric wrench to insert the bolt or nut to be tightened. Generally, the electric wrench is first manipulated to move to a position close to the bolt head and then stops, and the sleeve is aligned with the bolt. , and then move the electric wrench slightly again to put the sleeve on the electric wrench into the bolt head. In this process, it is difficult for the operator to control the force. The force should not be too large or too small. It is easy to push the wrench over the head, thereby increasing the labor intensity of the operator. Long-term operation is prone to fatigue and various occupational diseases such as frozen shoulder and lumbar spondylosis.

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