Bolt clipper with replaceable cutting edge

A technology of bolt cutters and cutting edges, applied in the field of bolt cutters

Active Publication Date: 2011-11-23
ZHANGJIAGANG ZHONGTIANDA TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common bolt cutters have the following problems: 1. The cutting edge is easily damaged. Once damaged, the entire product will be scrapped. Even if it is repaired, the entire head must be replaced. The parts need to be replaced. Replacement cannot ensure that the blade clearance is adjusted reasonably, resulting in that the service life of the replaced head cannot be guaranteed
After forging, annealing is required before machining. After processing, the overall quenching and tempering heat treatment is required, and then the cutting edge is induction quenched and then tempered at low temperature to improve the hardness of the cutting edge. The process is complicated and the cost is high.
3. After the heat treatment of the blade edge, the hardness, depth of hardened layer and structure cannot be directly detected
The cost of inspection is high, the number of random inspections is small, and the efficiency is low, and it is necessary to be equipped with precision inspection equipment such as microhardness testers and metallographic microscopes, as well as professional and qualified inspection personnel.

Method used

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  • Bolt clipper with replaceable cutting edge
  • Bolt clipper with replaceable cutting edge
  • Bolt clipper with replaceable cutting edge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be described in further detail below through specific examples.

[0015] A type of bolt cutter with replaceable blades, such as figure 1 , figure 2 and image 3 As shown, it includes a cutter head 1 and two pliers handles 2. The cutter head 1 is a split structure, including two cutter head bodies 11 and two blades 12, and each cutter head body 11 is correspondingly arranged At the head of a pliers handle 2, each of the blades 12 is in the shape of a regular triangular prism, at least two edges of the regular triangular prism are set as cutting edges 121, and a cutting edge 121 is collapsed. Replace the installation surface of blade 12, make another cutting edge 121 of blade 12 as working edge, like this, one blade 12 has more than one cutting edge 121 and just prolongs the service life of doubling. Therefore, in the present invention, the three edges of the regular triangular prism are all set as the cutting edges 121, so that the two bla...

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PUM

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Abstract

The invention discloses a bolt clipper with a replaceable cutting edge, and the bolt clipper comprises a cutter bit, wherein the cutter bit is in a split type structure and comprises two cutter bit bodies and two blades, each blade is in a regular triangular prism shape, at least two prisms of the regular triangular prism are shearing edges, each cutter bit body is provided with a mounting slot used for containing the blades, and each blade is detachably mounted into a corresponding mounting slot by virtue of a pressing plate. The blade of the bolt clipper with a replaceable cutting edge disclosed by the invention can be repeatedly used and is convenient to replace, thus the service life is prolonged and the cost is reduced.

Description

technical field [0001] The invention relates to a bolt cutter, in particular to a bolt cutter with a replaceable blade. Background technique [0002] Bolt cutters are used to cut round steel or flat steel with different hardness and diameter. The cutting edge is required to have high hardness and good toughness, and it will not collapse or collapse during use. Common bolt cutters have the following problems: 1. The cutting edge is easily damaged. Once damaged, the entire product will be scrapped. Even if it is repaired, the entire head must be replaced. The parts need to be replaced. Replacement cannot guarantee that the cutting edge clearance is adjusted reasonably, resulting in that the service life of the replaced head cannot be guaranteed. 2. When producing the bolt cutter head, in order to meet the requirements of high hardness and good toughness of the cutting edge, an alloy structural steel with high carbon content is selected. After forging, annealing is required ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D35/00
Inventor 张理宋虎
Owner ZHANGJIAGANG ZHONGTIANDA TOOLS CO LTD
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