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Screw tap with replaceable cutter head

A technology of taps and cutter heads, which is applied in the field of replaceable head taps, can solve the problems of inconvenience for enterprises, high grinding costs, high production costs, etc., and achieve the effect of reducing the cost of use

Inactive Publication Date: 2014-12-03
苏州锑玛精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The processing method when processing the thread is to use a suitable drill to process the thread bottom hole first, and then use the tap to tap the thread. The grinding cost of the cemented carbide tap is high after wear, so it is usually not used for grinding, but directly scrapped. , leading to higher production costs and causing a lot of inconvenience to enterprises

Method used

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  • Screw tap with replaceable cutter head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] like figure 1 As shown, the replaceable head tap of this embodiment includes a blade portion 1 and a shank portion 2, the key point is that a through hole is provided in the center of the blade portion 1, and the blade portion 1 passes through a screw passing through the through hole. 3 is fixedly connected with handle 2.

[0017] The center of the end of the blade portion 1 is concave, so that after the screw 3 is installed, the screw 3 will be hidden in the end, so as to avoid affecting the normal operation of the tap.

[0018] The contact surface 4 between the blade portion 1 and the shank portion 2 is serrated, so that precise positioning can be realized, thereby ensuring the performance of the tap.

[0019] After long-term use causes the blade portion 1 to wear and tear, the blade portion 1 can be removed and replaced with a new blade portion 1, so that the original handle 2 does not need to be scrapped, which saves the use cost.

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PUM

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Abstract

The invention aims at providing a screw tap with a replaceable cutter head, which can reduce the use cost of customers. The screw tap with the replaceable cutter head comprises a blade part and a handle part, and is characterized in that the center of the blade part is provided with a through hole, and the blade part is fixedly connected with the handle part by virtue of a screw which penetrates through the through hole. The screw tap has the advantage that after the screw tap is used for a long time, and the blade part is abraded, the blade part is detached and is replaced by a new blade part, so the discard of original handle part is avoided, and the use cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of cutter manufacturing, and in particular relates to a screw tap with a replaceable cutter head. [0002] Background technique [0003] The processing method when processing the thread is to use a suitable drill to process the thread bottom hole first, and then use the tap to tap the thread. The grinding cost of the cemented carbide tap is high after wear, so it is usually not used for grinding, but directly scrapped. , leading to higher production costs and causing a lot of inconvenience to enterprises. [0004] Contents of the invention [0005] The purpose of the present invention is to provide a replaceable head tap, so as to reduce the use cost of customers. [0006] The replaceable head tap of the present invention includes a blade and a shank. The key point is that a through hole is provided in the center of the blade, and the blade is fixedly connected to the shank through a screw passing throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G5/06
Inventor 李振丰周攀科周东阳
Owner 苏州锑玛精密机械有限公司