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Tool and cutting insert for the fine turning of grooves in workpieces

A technology of cutting inserts and tools, applied in the direction of tools, cutting inserts, manufacturing tools, etc. for lathes

Inactive Publication Date: 2006-04-12
SANDVIK INTPROP AB +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the finishing operation requires a very large number (14 or more in certain cases) of different tools with different, increasing sizes and these tools need to be individually set and fixed as the machining operation progresses, making this problem becomes more pronounced

Method used

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  • Tool and cutting insert for the fine turning of grooves in workpieces
  • Tool and cutting insert for the fine turning of grooves in workpieces
  • Tool and cutting insert for the fine turning of grooves in workpieces

Examples

Experimental program
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Embodiment Construction

[0023] In Figures 1 and 2, a tool in the form of a turning tool is shown, comprising a base body 1 and a cutting insert 2 detachably mounted on the base body. In this example, the base body 1 has a cylindrical main part 3, from its rear side extending a connecting element 4 capable of being fixed in a machine tool (not shown). On the front, the basic body has a carrier, indicated overall at 5 , which has a seat 6 in which the cutting insert 2 can be fastened. The bracket has a narrow neck 7 and a support 8 protruding laterally from the neck.

[0024] The cutting insert 2 will be further described in detail below with reference to FIGS. 7-10 .

[0025] Reference is now also made to FIGS. 3-6 , which together with FIGS. 1 and 2 illustrate in detail the design for the bracket 5 . In Fig. 6 it is shown how the relatively thin neck 7 is bounded by two flat, opposing side surfaces 9, 10, which are preferably parallel to each other. The support part 8 only protrudes from one of th...

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Abstract

The invention relates to a tool for the fine turning of rotationally symmetrical grooves in workpieces. The tool comprises a basic body (1) and a cutting insert (2), which is possible to fix in a cutting seat (6) on a bracket (5) included in the basic body, which bracket includes a narrow neck part (7) and a support part (8) protruding laterally from the same with the purpose of supporting a portion of the cutting insert (2) protruding laterally in relation to the neck part with the purpose of enabling, in a workpiece, the turning of internal shoulder surfaces of a hollow space countersunk inside a gap of the groove and having a greater width than the gap. According to the invention, the cutting insert (2) is indexable by including two spaced-apart, convexly arched and alternately applicable cutting edges (31), and has a hole (35) for a screw (28) by means of which the same can be clamped and fixed in the cutting seat (6) on the bracket. The cutting seat (6) has means (40a, 40b) that in co-operation with analogous means on the bottom side of the cutting insert prevent angular displacement of the cutting insert in relation to the cutting seat.

Description

technical field [0001] In a first aspect, the invention relates to a tool for finish turning a groove of the rotationally symmetrical type in a workpiece, the tool comprising a base body and a cutting insert consisting of an upper side, a lower side and at least one gap therebetween and can be fixed in a seat on a bracket included in the base, the bracket having a narrow neck and a support protruding laterally from said neck for supporting the opposite Projecting laterally from the neck to enable turning in the workpiece the portion of the inner shoulder surface of the hollow space countersunk inside the narrow indentation of the groove and having a greater width than said indentation. [0002] In a second aspect, the invention also relates to a cutting insert for use in a tool according to the invention. Background technique [0003] In workpieces with a rotationally symmetrical, for example cylindrical or conical, enveloping surface, recesses with a substantially dovetail...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/06B23B27/16B23B27/10
CPCB23B2220/12B23B2205/12B23B27/10B23B27/06B23B2200/161Y10T407/23Y10T407/14Y10T407/2274
Inventor 英厄马尔·赫斯曼肯尼斯·伦德贝里奥韦·伦德卡尔-戈兰·彼得松安德斯·弗雷特兰德
Owner SANDVIK INTPROP AB
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