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Straight fluted drill

A technology of straight groove drilling and groove bottom, which is applied in the direction of drill repairing, drilling tool accessories, drilling/drilling equipment, etc. It can solve the problems of large contact area, increased processing cost, easy breakage of drill bit, etc., and achieves a large chip space , Improve processing efficiency, good guiding effect

Inactive Publication Date: 2012-07-11
锑玛(苏州)精密工具股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During processing, the contact area between the front end and the workpiece is large, and the drill bit is easy to break when it is subjected to a sudden increase in resistance, which has a negative impact on processing efficiency and processing quality, thus increasing processing costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Such as figure 1 As shown, the straight flute drill shank 2 and the cutting edge 1 of this embodiment, the cutting edge 1 is provided with a side edge 3 and a chip flute 4 along its own axial direction, and the bottom of the chip flute 4 is provided with a platform 5 . This special groove design has more space for chips under the premise of ensuring a large core thickness. At the same time, the double edges formed by the platform have good guidance, which can better ensure the quality of the processed products.

[0013] The groove angle of the chip flute 4 is 105°, and the taper of the core thickness positive taper of the straight flute drill is 1:16, so as to ensure that the straight flute drill has a larger core thickness and more chip space.

[0014] The special structural design greatly improves the processing efficiency, and the tool has a longer life. The production cost is further saved.

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Abstract

The invention aims to provide a straight fluted drill, which is long in service life so that production cost is reduced. The straight fluted drill comprises a handle and an edge, a side edge and a chip flute are axially arranged at the edge, and pivotally, a platform is arranged at the bottom of the chip flute. By the aid of the special fluted design, on the premise of ensuring a large core thickness, more chip containing spaces are available, double edges formed by the platform are fine in guidance, and the quality of a machined product can be ensured more effectively. The straight fluted drill is ingenious in structural design, large in core thickness, large in chip containing space and fine in guidance, and a drill bit cannot break, so that production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of cutter manufacturing, and in particular relates to a straight groove drill. Background technique [0002] As an important part of machining tools, drill bits are mainly used for rough machining of holes. With the development of the machinery industry, users have put forward higher requirements for product processing quality, processing reliability, processing efficiency, and tool delivery time. The flute angle of traditional straight flute drilling is generally 90°, and the chip space is small. During processing, the contact area between the front end and the workpiece is large, and the drill bit is easily broken when subjected to a sudden increase in resistance, which has a negative impact on processing efficiency and processing quality, and thus increases processing costs. Contents of the invention [0003] The object of the present invention is to propose a straight flute drill with a long service ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/06
Inventor 李振丰孔小波周攀科周东阳
Owner 锑玛(苏州)精密工具股份有限公司
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