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Multifunctional turning blade integrating coarse machining with fine machining and cutting tool

A technology for multi-functional vehicles and cutting tools, applied to cutting blades, tools for lathes, turning equipment, etc., can solve the problems of limited cutting efficiency, poor economy, poor clamping stability, etc., to improve the quality of the machined surface, cutting High efficiency and low cutting load

Pending Publication Date: 2019-11-05
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The four corners of this type of blade are divided into two groups of tool points, each group of tool points is composed of two acute angles and two obtuse angles, and the acute and obtuse angles are arranged alternately in the circumferential direction, of which only the group of acute angles The above technical effects can be achieved, but compared with the triangular turning insert, this type of insert is less economical
At the same time, because the cutting area of ​​the sharp-edged tool tip is far away from the center clamping hole, the clamping stability is not good, the machined surface is not ideal, and the cutting efficiency is also greatly limited.
In order to solve the problem of cost-effectiveness of turning inserts, the industry sets the 35° cutting angle at the three corners of the triangle, so that the insert has three cutting capabilities. However, due to the poor strength of the 35° cutting angle inserts, it is only suitable for small applications. Cutting depth, small feed cutting, the application is subject to certain restrictions

Method used

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  • Multifunctional turning blade integrating coarse machining with fine machining and cutting tool
  • Multifunctional turning blade integrating coarse machining with fine machining and cutting tool
  • Multifunctional turning blade integrating coarse machining with fine machining and cutting tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1 to Figure 5 As shown, the multifunctional turning insert with integrated roughing and finishing in this embodiment includes an insert body 1, the insert body 1 is provided with a corner cutting unit 51 and a core cutting unit 52, and the corner cutting unit 51 protrudes relative to the core cutting unit 52 The distance is H, H>0, the diameter of the corner circumscribed circle 501 of the corner cutting unit 51 is D1, the diameter of the core circumscribed circle 502 of the core cutting unit 52 is D2, H=(D1-D2) / 2. That is, because the lengths of the protruding parts of the corner cutting unit 51 and the core cutting unit 52 are inconsistent, they will contact the workpiece successively during cutting, so that the cutting areas of the corner cutting unit 51 and the core cutting unit 52 are different, and layered cutting can be realized. When turning, if the corner cutting unit 51 is in front, then the corner cutting unit 51 cuts off a small part, and the...

Embodiment 2

[0052] Such as Figure 6 to Figure 8 As shown, the multifunctional turning insert with integrated roughing and finishing of the present embodiment, compared with embodiment 1, differs in that:

[0053] In this embodiment, the blade is not a symmetrical structure up and down. The side 4 is divided into an upper side 45 and a lower side 46, the corner side 41, the core side 42 and the transition side 43 are located on the upper side 45, and only the upper surface 2 has the corner cutting unit 51 and the core cutting unit 52. , in order to ensure that the corner cutting unit 51 and the core cutting unit 52 have the cutting ability, the corner side surface 41 and the core side surface 42 have relief angles λ1 and λ2, 5°≤λ1≤15°, 5°≤λ2≤15°, in this embodiment , preferably, λ1=11°, λ2=7°.

[0054] In this embodiment, the positioning side 8 is on the lower side 46, and the positioning side 8 is formed by the part of the lower side 46 in the area of ​​two adjacent corner cutting unit...

Embodiment 3

[0061] Such as Figure 9 to Figure 11 As shown, the cutting tool of this embodiment also includes the turning insert in the first embodiment above. The cutter body 10 is provided with a sipe 12 , and the turning insert is installed in the sipe 12 and fixed by the fastening assembly 11 .

[0062]A spacer 13 is arranged between the turning insert and the sipe 12, and the side positioning surface 8 is composed of two corner straight faces 411 and two core straight faces 421 between adjacent corner cutting units 51, and the two corner straight faces 411 and two core straight faces 421 and the knife The side surfaces of the groove 12 form a V-shaped side contact with one convex and one concave. The fastening assembly 11 comprises a fastening screw 101 and an L-shaped lever 102. The vertical part of the L-shaped lever 102 is passed through the clamping hole 9 of the blade. It is located in the receiving hole 121 and locked by the elastic piece 14 . The fastening screw 101 is inser...

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Abstract

The invention discloses a multifunctional turning blade integrating coarse machining with fine machining and a cutting tool. The turning blade comprises a blade body, wherein the blade body is provided with a corner cutting unit and a core cutting unit, the protruding distance, relative to the core cutting unit, of the corner cutting unit is H, and H > 0. The cutting tool comprises a cutter body,wherein a cutter groove is formed in the cutter body, and the turning blade is clamped in the cutter groove. According to the turning blade, the cutting area of the corner cutting unit and the cuttingarea of the core cutting unit are different so that the layered cutting effect can be realized, the corner cutting unit can independently complete the cutting treatment if the small cutting depth isrequired, and the core cutting unit is not needed for the cutting treatment; if the small cutting depth is required, the corner cutting unit can complete fine machining, and if the large cutting depthis required, the corner cutting unit and the core cutting unit can simultaneously participate in the cutting treatment to complete fine machining and coarse machining of a workpiece respectively, sothat the turning tool has the coarse machining-fine machining integrated function, and when the corner cutting unit and the core cutting unit simultaneously participate in the cutting treatment, the blade has the advantages of being stable in cutting effect and high in cutting efficiency.

Description

technical field [0001] The invention relates to a metal cutting tool, in particular to a multifunctional turning insert and a cutting tool with integrated roughing and finishing. Background technique [0002] In general turning processing, parallelogram turning inserts such as 35° rhombus have sharper tip and wide processing space, and are widely used in turning of outer circle, end face and root cleaning. The four corners of this type of blade are divided into two groups of tool points, each group of tool points is composed of two acute angles and two obtuse angles, and the acute and obtuse angles are arranged alternately in the circumferential direction, of which only the group of acute angles The above technical effects can be achieved, but compared with the triangular turning insert, this type of insert is less economical. At the same time, because the cutting area of ​​the sharp-angled tool tip is far away from the center clamping hole, the clamping stability is not go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/00
CPCB23B27/005B23B2200/048
Inventor 江爱胜王社权刘敏吴火飞
Owner ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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