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Twist bit with lubricating oil guide holes

A technology of twist drill bit and lead-in hole, which is applied in twist drill, drilling/drilling equipment, drill repairing, etc., and can solve the problems of inconvenient adding and adding lubricating oil

Inactive Publication Date: 2015-02-11
JIANGSU TIANGONG TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that it is very inconvenient to add lubricating oil to the twist drill during use
A twist drill with a lubricating oil introduction hole of the present invention solves the problem of adding lubricating oil to the twist drill during use through the setting of the lubricating oil introduction hole. It is simple and convenient, and neither affects the use nor the work of the twist drill. strength, very practical

Method used

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  • Twist bit with lubricating oil guide holes

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Embodiment Construction

[0011] The preferred technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] As shown in the figure, a twist drill with a lubricating oil introduction hole of the present invention includes a drill body 1, the upper part of the drill body 1 is a handle 2 for clamping, the lower part is a working part 3, and the working part 3 includes an upper guide part 4 and a lower cutting part 5, two spiral chip flutes 6 are arranged on the outer surface of the guide part 4, and two A lubricating oil introduction hole 7 communicates with the upper end of the chip flute 6, wherein the diameter of the lubricating oil introduction hole 7 is 2-5mm.

[0013] A twist drill with a lubricating oil introduction hole of the present invention is provided with a lubricating oil introduction hole, and the lubricating oil introduction hole is connected to the chip groove, so that the oil can be inserted from the lubricating o...

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Abstract

The invention discloses a twist bit with lubricating oil guide holes. The twist bit comprises a bit body; the upper portion of the bit body is a handle used for clamping, the lower portion is an operating portion, the operating portion comprises an upper guide portion and a lower cutting portion, the surface of the outer side of the guide portion is provided with a plurality of spiral chip grooves, and a plurality of lubricating oil guide holes are formed in the circumference of the upper end of the guide portion evenly and are communicated with the chip grooves. The twist bit has the advantages that the problem that lubricating oil is fed during usage of the twist bit is solved by adopting the lubricating oil guide holes, the twist bit is simple and convenient to use, the usage is not affected, the work intensity of the twist bit is not affected, and the twist bit is practical.

Description

technical field [0001] The invention relates to a twist drill, in particular to a twist drill with lubricating oil introduction holes. Background technique [0002] The twist drill needs to be lubricated on its outer surface during use, and also needs to be lubricated during storage, and placed in a special tool box to avoid collisions. Under normal circumstances, when the twist drill is not in use, it is more convenient to apply lubricating oil and put it in the tool box, but it is still a laborious thing to add lubricating oil during use, and it is necessary to stop working or even put the twist drill Remove the drill bit to add it. Contents of the invention [0003] The technical problem to be solved by the present invention is that it is very inconvenient to add lubricating oil to the twist drill during use. [0004] In order to solve the above technical problems, the present invention provides a twist drill with a lubricating oil introduction hole, which inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/02B23B51/06
CPCB23B51/02B23B51/06
Inventor 朱小坤何建国
Owner JIANGSU TIANGONG TOOLS CO LTD
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