Milling cutter

A technology for milling cutters and cutting inserts, applied in milling cutters, manufacturing tools, milling machine equipment, etc., can solve the problems of low machining accuracy, poor rigidity, and large cutting vibration, and achieve simple assembly, improved rigidity, and improved surface processing quality. Effect

Active Publication Date: 2018-01-12
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, because the hole of the positioning cylinder positioning hole is close to the surface of the tool handle, that is, at the other end of the cutting insert, not only the tool connection strength is low and the rigidity is poor, especially in the milling process with large overhang and intermittent cutting, the actual cutting of the tool The size deviates from the non-cutting size, the cutting vibration is large, and the machining accuracy is low

Method used

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  • Milling cutter
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like Figure 1 to Figure 3 As shown, the milling tool of the present embodiment comprises a handle 4, a cutter body 1 and a cutting blade 2, and one end of the cutter body 1 is provided with a blade groove 11, and the cutting blade 2 is fixed in the blade groove 11 by a fastening screw 3, and the cutter body 1. The other end is the positioning end face 15. The positioning end face 15 is provided with a threaded connection hole 13 and a positioning hole 14 in sequence along the axial direction. The threaded connection hole 13 communicates with the positioning hole 14. The part 41 and the positioning part 42 matched with the positioning hole 14.

[0029] In this embodiment, when the knife body 1 is installed and connected with the knife handle 4, the positioning part 42 of the knife handle 4 first cooperates with the positioning hole 14 for positioning, and then the threaded part 41 of the knife handle 4 is tightened and fitted with the threaded connection hole 13 to real...

Embodiment 2

[0037] like Figure 4 and Figure 5 As shown, this embodiment is basically the same as Embodiment 1, the only difference is:

[0038] In this embodiment, the positioning hole 14 is a blind hole. The wrench groove 12 adopts five waist-shaped holes to be evenly arranged on the end face of the cutter body 1 .

[0039]In this embodiment, since the internal cooling channel 16 is provided on the cutter body 1 , the positioning hole 14 is set as a blind hole, that is, the positioning hole 14 does not penetrate through the cutter body 1 . Such an arrangement is beneficial to realize the internal cooling of the tool, so that there are fewer internal cooling parts and a simple structure.

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PUM

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Abstract

The invention discloses a milling cutter. The milling cutter comprises a cutter handle, a cutter body and cutting blades, wherein one end of the cutter body is provided with blade grooves, each cutting blade is fixed in the corresponding blade groove through a fastening screw, and the other end of the cutter body is provided with a positioning end face; and a threaded connecting hole and a positioning hole are sequentially formed in the positioning end face in the axial direction, the threaded connecting hole communicates with the positioning hole, and the cutter handle is provided with a threaded portion which is matched with the threaded connecting hole and a positioning portion which is matched with the positioning hole. The milling cutter has the advantages that the axial length of thecutter can be shortened, the rigidity of the cutter can be improved, and vibration of the cutter can be reduced.

Description

technical field [0001] The present invention relates to metal cutting tools, in particular to a milling tool. Background technique [0002] In metal cutting, the rigidity of the cutting tool is an important factor to ensure the cutting quality, and increasing the rigidity of the cutting tool is an effective way to improve the service life of the cutting tool. Especially for some milling cutters whose diameter is not very large (less than 80mm), the influence of the system rigidity on the processing quality is particularly obvious. In the prior art, the milling tool with a diameter of 40mm to 80mm basically adopts the common cylindrical positioning hole and screw connection method in the industry with the tool holder, and relies on the key to transmit the torque. The cylindrical positioning hole on the tool holder and the cutting tool The clearance between the holes on the tool is positioned with a single screw at the center of rotation of the tool to fasten the tool handle ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B23C5/22
Inventor江爱胜向兴东王社权刘敏
OwnerZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD