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Metal cutting tool and cutting plate provided in the shape of a donut

A cutting tool and clamping groove technology, applied in the direction of tools for lathes, accessories of tool holders, milling cutters, etc., can solve the problem of insert stress, lack of clamping force, and no positive factors integrated in one device, etc. question

Inactive Publication Date: 2012-12-12
CERAMTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this flat insert surface technology is the lack of clamping force for a form-fit connection to the tool holder
In the case of inserts with clamping grooves, although there is a form-fit connection, the insert is clamped in the clamping groove and is subjected to very strong clamping forces on a relatively small surface, which can lead to stresses in the insert or even fractures
Furthermore, not all possible positive factors are combined in one device in current fixture devices

Method used

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  • Metal cutting tool and cutting plate provided in the shape of a donut
  • Metal cutting tool and cutting plate provided in the shape of a donut
  • Metal cutting tool and cutting plate provided in the shape of a donut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] figure 1 A cutter head or insert 10 is shown as an indexable insert for machining metal workpieces. The center of the blade 10 has a circular clamping groove 11, wherein a spherical or circular protrusion 12 is arranged in the center. The clamping groove 11 and the projection 12 serve to fix the blade in a mating receptacle, also referred to as a blade seat, to a suitable blade holder.

[0037] figure 2 A perspective view of the blade 10 clamped on the tool holder 13 is shown. Special attention should be paid to the pressure block 14 at this time (see also image 3 ), which has a corresponding shape on the underside to the aforementioned clamping groove on the insert. The clamping force generated by tightening the fastening screw 17 is transmitted to the blade 10 via the clamping plate 16 . As a special feature, the clamping plate has a spherical projection 18 on the bottom surface on the blade, which protrudes into a spherical depression 19 of the pressure piece ...

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PUM

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Abstract

The present invention relates to a blade with a clamping trough (11), which is characterized in that the clamping trough (11) is circular and has a spherical or circular protrusion (12) in the center, and the spherical or circular protrusion (12) is arranged above the clamping trough bottom and below the blade surface.

Description

[0001] This application is a divisional application of the invention patent application whose original application number is 02814759.6, the invention name is "metal cutting tool and baking mold shape blade", and the application date is July 19, 2002. technical field [0002] The invention relates to an insert with a clamping groove and a metal cutting tool. Background technique [0003] The state of the art for inserts, in particular indexable inserts made of ceramics, are inserts with flat surfaces or various clamping grooves, which are clamped on tool holders for machining metallic materials. A disadvantage of this technology for flattening the insert surface is the lack of clamping force for the form-fit connection to the tool holder. In the case of inserts with clamping grooves, although there is a form-fit connection, the insert is clamped in the clamping groove and is subjected to very strong clamping forces on a relatively small surface, which can lead to stresses in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B27/16
CPCB23B27/1644B23B27/1629
Inventor O·埃德W·兹茨拉夫
Owner CERAMTEC