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 eventu

Method used

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  • Spiral tap
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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1

[0017] See Figure 1-Figure 4 As shown, the spiral tap includes a clamping part 1, a tool shank 2 connected to the clamping part, and a tool head 3 connected to the tool shank; the front end of the clamping part is conical, because the head end of the conical clamping part has Positioning function, and the clamping part is solid, its ability to withstand pressure is strong, the clamping part can be effectively avoided from cracking, and the service life of the spiral tap is longer; the cutter head includes the second half of the drilling part 4, and the first half of the tap part 5; the tap part has a tapping edge 6 uniformly distributed along the axial direction on the circumferential surface, and the hole can be drilled through the hole in the second half of the bit. The evenly distributed tapping blades are used for tapping to ensure that drilling and tapping are performed at the same time, avoiding repeated processing and reducing production costs; the tap...

Example Embodiment

[0018] Example 2

[0019] On the basis of the foregoing embodiment 1, the clamping part and the knife handle are integrally formed, and both use 45 gauge steel; the knife handle is welded to the knife head, and the knife head is made of cemented carbide. Because the cutter head is made of cemented carbide, the cemented carbide has strong wear resistance and heat resistance, so as to ensure the wear and heat resistance of the cutter head; and the clamping part and the knife handle use 45 steel, because the cost of 45 steel is low, Thereby reducing the production cost of spiral taps.

Example Embodiment

[0020] Example 3

[0021] On the basis of the foregoing embodiment 1, the outer surface of the cutter head is coated with three layers of coatings, from the inside to the outside, there are a titanium alloy layer inner coating 9, a titanium nitride layer 10, and an aluminum titanium nitride outer coating 11. . 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 low friction coefficient, especially in ultra-high cutting. Excellent performance in hard-to-process 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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