Special disassembly tool for withdrawing bolt

A technology of special tools and bolts, applied in the field of assembly and disassembly tools in machining, to achieve the effect of convenient use and compact structure

Active Publication Date: 2014-10-29
HUBEI XUYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] According to the search, there is no patent application identical to the present invention in China

Method used

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  • Special disassembly tool for withdrawing bolt
  • Special disassembly tool for withdrawing bolt
  • Special disassembly tool for withdrawing bolt

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Embodiment Construction

[0028] Further description is given below in conjunction with the reference signs:

[0029] figure 1 It is a schematic diagram of the overall structure of the present invention

[0030] The special tools include: a screw drill 1, a rotating rod 2, a connecting nut 3, a clamping handle 4, a compression spring 5, a pressure regulating nut 6, a pressure regulating spring 7, a stop steel ball 8 and a locking nut 9. Thread-removing drill 1 is the main part of this set of special tools for bolt-removing. The thread-removing drill is different from ordinary drills. Its cutting edge has three parts, which respectively play the role of drilling centering, hooking bolts and increasing the rotational torque. role. When disassembling the bolts that are broken in the workpiece due to excessive pre-tightening force, apply positive pressure on the bolts through the thread unwinding drill 1 to generate sufficient dismounting torque. Its other end is fixed on the rotary connecting rod 2, an...

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Abstract

The invention discloses a special disassembly tool for withdrawing a bolt. The special tool comprises a thread removing drill used for being connected with and hooking the bolt, and the cutting edge of the thread removing drill are provided with three parts which achieve the effects of drilling and centering, bolt hooking and rotation torque increasing respectively. The other end of the thread removing drill is placed in a hole of a rotary connecting rod, and a locking nut on the rotary connecting rod is used for conducting fastening and locating on the thread removing drill. The rotary connecting rod is in directional connection with a clamping handle through a connecting nut and threads and is used for limiting the rotary connecting rod. A stop steel ball, a pressure adjusting spring and a pressure adjusting nut are installed on the clamping handle. Through adjustment of the pressure adjusting nut, the pressure adjusting spring can generate positive pressure on the stop steel ball. The stop steel ball and the rotary connecting rod are matched in thread. The special disassembly tool for withdrawing the bolt is convenient to use, is not limited by disassembly places or the sizes of workpieces and can be used for disassembling bolts of various specifications by changing the specification of the thread removing drill. The special disassembly tool for withdrawing the bolt is compact in structure, has the self-locking overload protection function and can conduct overload protection on operators.

Description

technical field [0001] The invention relates to a dismantling tool for assembling in mechanical processing, in particular to a special dismantling tool for the dismantling of various bolt heads caused by excessive pre-tightening force during the assembling process. Background technique [0002] A product is assembled from components, and the components are assembled from various parts. During the assembly process, various bolts of different specifications and types are used for connection, although the sizes of various bolts have been designed. Check, but there are still many bolts shearing or twisting the bolt head during the assembly process. In the slightest, it will affect the assembly progress of the entire production line, and in severe cases, the parts or components will be charged. Under normal circumstances, the operator will use a sharp wedge to knock the bolt to withdraw the bolt, which is time-consuming and laborious, and the work efficiency is not high. Sometim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/18B25B23/157
CPCB25B27/18
Inventor 戴雄李有红
Owner HUBEI XUYANG IND & TRADE
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