Taper shank twist drill

A twist drill and taper shank technology, which is applied in twist drills, drill repairs, drill accessories, etc., can solve problems such as splashing workers, affecting the service life of tools, and dirtying the working environment

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] When the twist drill is drilling, the working part of the twist drill will generate a lot of heat. The general heat dissipation method is to dissipate heat through the cooling liquid.

Method used

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  • Taper shank twist drill

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Effect test

Embodiment Construction

[0011] As shown in the figure, the taper shank twist drill includes a drill body and a taper shank 3. The drill body includes a drill working part 2 and a drill shank 1. The taper shank 3 is sleeved on the drill shank 1. The taper shank 3 is structured to facilitate utilization The principle of friction force can transmit a certain torque, and because the taper shank 3 and the fixture are taper, it can be easily disassembled. The working part 2 of the drill bit is equipped with three spiral cutting edges 4, and there is a row between the two spiral cutting edges 4. Chip flute 5, chip flute 5 is provided with a cleaning edge 11, chip flute 5 is equipped with a transverse chip edge 6, drill working part 2 is tapered, the lower end of the drill working part 2 has a diameter of 6mm and an upper end of 10mm, It can drill holes of different sizes, which expands the practical range of the drill. The drill shank 1 and the taper shank 3 are connected by threads, which facilitates the use...

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Abstract

The invention relates to the technical field of tools, in particular to a taper shank twist drill. The taper shank twist drill comprises a drill bit body and a taper shank, wherein the drill bit body comprises a drill bit working part and a drill bit shank part; the taper shank is arranged on the drill bit shank part in a sleeving manner; the taper shank twist drill is characterized in that the drill bit working part is provided with three spiral cutting edges, wherein a chip discharge groove is formed between every two spiral cutting edges; a transverse chip cutting edge is arranged in each chip discharge groove; the drill bit working part is taper; the drill bit shank part is connected with the taper shank through threads; a radiating component is arranged in the upper part of the taper shank; the taper shank below the radiating component is provided with a clamping groove; a supporting plate is clamped on the clamping groove; a communicating through hole is formed between the supporting plate and the bottom of the drill bit working part; the radiating component is fixedly arranged on the supporting plate and comprises an aluminum radiating cylinder; the radiating cylinder is uniformly provided with radiating fins; the taper shank on the outer side of the radiating cylinder is provided with a plurality of ventilation holes. The twist drill has the advantages of good machining efficiency, good chip discharge effect, contribution to clamping and low cost.

Description

Technical field [0001] The invention relates to the technical field of cutting tools, in particular to a taper shank twist drill. Background technique [0002] When drilling a twist drill, the working part of the twist drill will generate a lot of heat. The general heat dissipation method is to dissipate the heat through the coolant. The splash of the coolant will not only stain the working environment, but also splash the staff. On the body, if the tool is not radiated, it will affect the service life of the tool. Summary of the invention [0003] In order to overcome the deficiencies of the above technical problems, the present invention provides a twist drill with good processing efficiency, good chip removal effect, good heat dissipation effect, long service life, easy clamping and low cost. [0004] The technical solutions to solve the above technical problems are as follows: [0005] The taper shank twist drill includes a drill bit body and a taper shank. The drill bit body in...

Claims

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Application Information

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IPC IPC(8): B23B51/02B23B51/06B23B51/12
CPCB23B51/02B23B51/06B23B51/12B23B2251/127B23B2251/242B23B2251/408
Inventor 许媛
Owner 常州华尔澜工具有限公司
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