Reaction force arm for fixed torque wrench

A technology of reaction force arm and constant torque, applied in the directions of wrenches, screwdrivers, manufacturing tools, etc., can solve the problems of increasing labor intensity and reducing work efficiency, and achieve the effect of improving work efficiency, strength and overall strength.

Inactive Publication Date: 2014-06-11
江苏金立电子机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The length of the traditional reaction arm is fixed and has no adjustment function. It is limited by the length of the arm. Under different working conditions, it is necessary to replace the arm of different lengths, which increases the labor intensity of the work and reduces the work efficiency.

Method used

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  • Reaction force arm for fixed torque wrench
  • Reaction force arm for fixed torque wrench

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Embodiment Construction

[0021] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0022] like figure 1 and figure 2 As shown, a reaction arm for a constant torque wrench includes a "乁"-shaped main arm body 1, a positioning ring gear 3 is opened on the plane arm body of the main arm body 1, and an oblique arm body of the main arm body 1 There is a dovetail groove 4 on the top, and a positioning hole 7 is opened at the bottom of the dovetail groove 4. The reaction arm also includes a dovetail-shaped moving arm body 2 that matches the dovetail groove 4. There is a dovetail in the middle of the moving arm body 2. The positioning installation hole 5 is equipped with an elastic positioning device 6, and the upper end side of the moving arm body 2 is provided with a threaded groove 8 and a locking knob 9 matching the threaded groove 8. The moving arm body 2 A baffle 10 is provided on one side of the lower end.

[0023] ...

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Abstract

The invention discloses a reaction force arm for a fixed torque wrench and belongs to the field of equipment tools. The arm comprises an L-shaped main arm body, a location gear ring is arranged on a planar arm body of the main arm body, a dovetail groove is formed in an inclined arm body of the main arm body, and a location hole is formed in the bottom of the dovetail groove. The reaction force arm further comprises a dovetail moving arm body meshed with the dovetail groove, a location installation hole is formed in the middle of the moving arm body, an elastic location device is installed in the location installation hole, a threaded groove and a locking knob matched with the threaded groove are formed in one side of the upper end of the moving arm body, and a baffle is arranged on one side of the lower end of the moving arm body. The reaction force arm adopts the dovetail groove structure design, the length of the force arm is adjusted by stretching and retreating of the moving arm body to adapt to different work conditions, and the working efficiency is improved. The tooth shape is designed by adopting a 30-degree pressure angle, so that the gear strength is improved. The main arm body adopts the flexible arc anti-torque design, so that the torque accuracy is improved.

Description

technical field [0001] The invention belongs to the field of equipment tools, and in particular relates to a reaction arm of a constant torque wrench. Background technique [0002] The constant torque wrench is widely used in the assembly line with strict requirements on the tightening process, so that the torque value of each fastener of the product is consistent, and the quality of the produced product is guaranteed. The length of the traditional reaction arm is fixed and has no adjustment function. Due to the limitation of the length of the arm, it is necessary to replace the arm with different lengths under different working conditions, which increases the labor intensity of the work and reduces the work efficiency. Contents of the invention [0003] The object of the present invention is to solve the deficiencies in the prior art, and to provide a reaction arm for a constant torque wrench that can be telescopically adjusted to adjust the length of the arm. [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B23/00
CPCB25B23/0078
Inventor 方士君魏绍明
Owner 江苏金立电子机械科技有限公司
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