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Wrench tool and bend manufacture procedure thereof

A tool and working end technology, applied in the field of wrenches with greatly reduced thickness, can solve the problems of high cost, high production cost, unable to reduce the selling price, etc., and achieve the effect of reducing the thickness and flattening the arrangement

Active Publication Date: 2011-01-05
TOPEAK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the socket groove 92A can be formed into various shapes by forging, the production cost of forging is high, and it will cost more to produce hexagonal wrenches 90A of various sizes by forging, so the existing The forging method to form the socket groove 92A cannot effectively reduce the cost, and thus the price cannot be reduced

Method used

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  • Wrench tool and bend manufacture procedure thereof
  • Wrench tool and bend manufacture procedure thereof
  • Wrench tool and bend manufacture procedure thereof

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Experimental program
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Effect test

Embodiment Construction

[0036] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0037] refer to figure 1 , is the manufacturing flowchart of the bending tool of the present invention. The bending process of the pulling tool of the present invention includes the following steps:

[0038] preparing a rod of predetermined length having a working end and a connecting end;

[0039] flattening one end of the rod into a flat portion such that the thickness of the flat portion is smaller than the thickness of the rod;

[0040] cutting off the remaining material extending outward from the flat part, so that the two sides of the flat part are connected and extended with the corresponding two sides of the working end;

[0041] The flat part is bent to form a socket part, so as to obtain a finished product bent by the wrench tool.

[0042] refer to figure 2 and image 3 , the bar is a bar...

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PUM

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Abstract

The invention discloses a wrench tool and a bend manufacture procedure thereof. The bend manufacture procedure comprises the following steps of: preparing a bar with a predetermined length, wherein the bar comprises a working end and connecting end; flattening the connecting end of the bar into a flat part to make the thickness of the flat part smaller than that of the working end; cutting the outwards extending remnant of the flat part to make both sides of the flat part and both sides corresponding to the working end connected and extend; and bending the flat part to form a muff-coupling part so as to obtain a finished product bent by the wrench tool. Therefore, the thickness of the finished product bent by the wrench tool can be greatly reduced.

Description

technical field [0001] The invention relates to a wrench tool and its bending process, especially a wrench capable of greatly reducing the thickness. Background technique [0002] refer to Figure 14 , which is a structure of bending a hexagonal wrench in the prior art, which is formed by bending one end of a hexagonal wrench 90 into a set of connecting grooves 91 to be pivotally connected to the tool seat, and multiple hexagonal wrenches can be connected to the tool seat 90 to form a tool combination. [0003] However, there are still many deficiencies in the prior art. The cross-section of the existing hexagonal wrench is hexagonal. The hexagonal cross-section is not easy to bend because of the corners of the bent part during bending and forming, and causes relatively large stress. And it is easy to break during the bending process, so the defective rate of production cannot be effectively reduced, especially for large-sized hexagonal wrenches. [0004] Furthermore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D7/00B25B13/00
Inventor 庄士文
Owner TOPEAK