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Combined tool with cooling function for machining stepped holes

A technology of combining cutting tools and cooling holes, which is applied in the direction of step drilling, manufacturing tools, metal processing equipment, etc., can solve the problems of large investment in equipment and cutting tools, low production efficiency, long working hours, etc., and achieve good cooling effect.

Inactive Publication Date: 2021-10-26
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above two processing methods have problems such as low production efficiency, relatively large investment in equipment and tools, long working hours, high cost, and poor cooling effect.

Method used

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  • Combined tool with cooling function for machining stepped holes
  • Combined tool with cooling function for machining stepped holes
  • Combined tool with cooling function for machining stepped holes

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0019] Refer to attached Figure 1~3 , according to the number of cutting edges and edge grooves of the milling cutter (1), select the adjusting bushing (2) of different height and diameter, and screw the thread on the threaded straight shank (3-2) of the twist drill (3) into the milling cutter In the thread (1-6) of the cutter (1) until it is fastened, when working, the coolant flows through the cooling hole (1-1) of the milling cutter (1) to the relief groove (1-5), and through the twist drill The two cooling holes (3-1) on (3) flow out of the cooling hole, and the chips are discharged through the edge groove of the twist drill (3) and the edge groove of the millin...

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PUM

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Abstract

The invention belongs to metal cutting tools, and particularly relates to a combined tool for machining stepped holes. The combined tool comprises a milling cutter (1) with an inner cooling hole, an adjusting shaft sleeve (2) and a twist drill (3) with an inner cooling hole. The milling cutter (1) with the inner cooling hole is in threaded fit with the twist drill (3) with the inner cooling hole, the stepped holes of different types and sizes are machined, the investment of equipment and tools for machining the stepped holes is reduced, machining procedures and auxiliary working hours are reduced, the inner cooling holes are formed, cutting fluid flows in the tool, and the cooling effect of the tool is improved.

Description

technical field [0001] The invention belongs to metal cutting tools, in particular to a combined tool for step hole processing. Background technique [0002] Step hole is a common process structure in mechanical parts. There are two main types. One is that the end face of the transition is flat, and the other is that the transition is chamfered. These two kinds of stepped holes correspond to larger sizes, which can be processed by turning tools. For smaller sizes, first use twist drills to process small holes, and then use milling cutters or reamers to process large holes. There are also special tools that can be processed at one time. Stepped holes, but only fixed-diameter stepped holes can be processed, and the cooling method generally adopts external cooling. [0003] The above two processing methods have problems such as low production efficiency, relatively large investment in equipment and tools, long working hours, high cost, and poor cooling effect. Contents of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00B23B51/06B23B51/08
CPCB23B51/009B23B51/06B23B51/08
Inventor 姚继权尹晶侯锋罗晶谷金
Owner LIAONING TECHNICAL UNIVERSITY
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