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Positionable milling cutter

A technology of indexing and milling cutters, applied in milling cutters, milling machine equipment, manufacturing tools, etc., can solve the problems of stress concentration, chipping, and shortening the service life of the blade, so as to improve the service life, excellent processing performance, and avoid rotation. Effect

Inactive Publication Date: 2004-04-21
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to process absolutely flat facets in the sipes during processing, so the cooperation between the blade and the small planes in the sipes is actually a small range of point contact, which cannot completely solve the problem of the above-mentioned milling inserts in the sipes. Due to the problem of self-rotation, local stress or stress concentration will still be generated during cutting, which will easily cause chipping and greatly reduce the service life of the blade

Method used

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] An indexable milling cutter 1 is composed of an indexable milling insert 2, a tool handle 3 with a matching sipe 4 and a fastening screw 9, such as figure 1 shown.

[0019] The indexable milling insert 2 comprises an upper cutting surface 15, a bottom surface 5 and a side surface 6, the upper cutting surface 15 intersects with the side surface 6 to form the cutting edge 7 of the insert, see Figure 2-5 . On the side surface 6 of the blade 2, there are several anti-rotation angles 10 evenly distributed, preferably 6-8. The anti-rotation angle 10 is formed by stretching a group of V-shaped curves 16 symmetrically distributed with respect to the center of the blade on the bottom surface 5 in the direction of the upward cutting surface 15 and intersecting with the side surface 6. Incline to the outside of the side surface 6 at a certain angle C, f...

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PUM

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Abstract

An indexing milling tool features that a certain number of convex anti-turning angles is made on the lateral surface of circular milling cutter and a certain number of concave anti-turning surfaces engaged with said anti-turning angles is uniformly arranged on the lateral supporting surface of tool holding notch. Said anti-turning angle is formed by the intersection of V-shaped curve to the lateral surface. The included angled is 110-150 deg. for V-shaped curve and 150-180 deg. for two anti-turning angles. Its advantages are long service life of milling tool and high quality of machined surface.

Description

technical field [0001] The invention relates to an indexable milling cutter, in particular to an indexable milling cutter composed of an indexable circular milling blade and a tool handle matched with it. Background technique [0002] The indexable milling cutter composed of the indexable circular milling insert and the matching tool holder can realize multi-functional milling, greatly reduce tool change, improve efficiency and save cost. However, during the cutting process, due to the torque generated by the angular deviation between the feed direction of the workpiece and the cutting force, the circular milling insert is prone to self-rotation in the tool groove of the tool handle, resulting in the loosening of the screw that fixes the insert, and the insert is Axial vibration will be generated in the tool groove, which will cause local scratches on the surface of the workpiece, thereby reducing the surface quality of the processed workpiece, and even causing the blade to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/20
Inventor 汤爱民李屏王社权谭水华欧文辉李明刘敏
Owner ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD