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Spiral tap

A technology of spiral taps and taps, applied in thread cutting tools, drilling/drilling equipment, drilling tool accessories, etc., can solve the problems of poor positioning effect, low processing hole precision, low processing efficiency, etc., to avoid repeated processing , reduce production costs, and have a strong ability to withstand pressure

Inactive Publication Date: 2015-02-18
常州华尔澜工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when processing threaded holes, two processes need to be adopted, first drilling with a drill bit, and then tapping through a tap; but the above-mentioned processing process has the following problems: 1) Due to the need to repeatedly change the tool and set the tool during processing, the error during processing The reamer is large, which eventually leads to low precision of the processed hole after processing and becomes a waste product; 2) Due to the need for repeated tool changes, the processing efficiency is low; 3) The current installation of the tap clamping part is positioned by counterbore, and the positioning effect is not good , and the clamping part will crack under the condition of large force

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0017] see Figure 1-Figure 4 As shown, the spiral tap includes a clamping portion 1, a handle 2 connected to the clamping portion, and a cutter head 3 connected to the handle; the front end of the clamping portion is conical, and the conical clamping portion has a Positioning function, and the clamping part is solid, its ability to withstand pressure is strong, which can effectively avoid the cracking of the clamping part, so that the service life of the spiral tap is longer; the cutter head includes the drilling part of the second half 4, and the tap part 5 of the first half; the tap part circumferential surface is uniformly distributed with tapping blades 6 in the axial direction, and can be drilled through the drilling part of the second half of the cutter head, and through the tap part of the cutter head Uniformly distributed tapping blades for tapping, so as to ensure drilling and tapping at the same time, avoid repeated processing, and reduce production costs; the tap p...

Embodiment 2

[0019] On the basis of the foregoing embodiment 1, the clamping part and the knife handle are integrally formed, and both are made of No. 45 steel; the knife handle is welded to the cutter head, and the cutter head is made of hard alloy. Because the cutter head is made of hard alloy, the hard alloy has strong wear resistance and heat resistance, thereby ensuring the wear resistance and heat resistance of the cutter head; while the clamping part and handle are made of 45 steel, because the cost of 45 steel is low, Thereby reducing the production cost of the spiral tap.

Embodiment 3

[0021] On the basis of the foregoing embodiment 1, the outer surface of the cutter head is coated with three layers of coatings, which are titanium alloy layer inner coating 9, titanium nitride layer 10 and aluminum nitride titanium outer coating 11 from the inside to the outside. . Three kinds of coatings are coated on the outer surface of the cutter head so that the outer surface of the cutter head has the characteristics of high hardness, good toughness, good wear resistance, stable chemical properties, heat resistance and oxidation resistance, and small friction coefficient, especially in ultra-high cutting It can exhibit excellent performance in hard and other difficult-to-machine materials.

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PUM

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Abstract

The invention relates to the technical field of cutting tools, and particularly relates to a spiral tap. The spiral tap comprises a clamping part, a knife handle and a tool bit, wherein the knife handle is connected with the clamping part; the tool bit is connected with the knife handle. The spiral tap is characterized in that the front end of the clamping part is in a conical shape; the tool bit comprises a drilling part on the rear half section, and a tap part on the front half section; tapping blades are evenly distributed on the circular surface of the tap part along the axial direction; a chip groove is also formed in the tap part, extends in a spiral shape and penetrates through the tapping blades; a drill tip is arranged at the tail end of the drilling part; the spiral tap can be processed and molded at one step; the processing efficiency is low; the clamping part is prevented from being cracked.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a spiral tap. Background technique [0002] At present, when processing threaded holes, two processes need to be adopted, first drilling with a drill bit, and then tapping through a tap; but the above-mentioned processing process has the following problems: 1) Due to the need to repeatedly change the tool and set the tool during processing, the error during processing The reamer is large, which eventually leads to low precision of the processed hole after processing and becomes a waste product; 2) Due to the need for repeated tool changes, the processing efficiency is low; 3) The current installation of the tap clamping part is positioned by counterbore, and the positioning effect is not good , and the clamping part will crack under the condition of large force. Contents of the invention [0003] The object of the present invention is to provide a spiral tap that can be ...

Claims

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Application Information

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IPC IPC(8): B23G5/20B23B51/08
CPCB23G5/20B23G2200/143B23G2200/146B23G2225/28B23G2225/48B23G2225/60B23G2240/08
Inventor 许媛
Owner 常州华尔澜工具有限公司
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