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Enhanced cutter holder for clamping indexable cutter blade

An indexable insert and reinforced technology, applied in the direction of tools for lathes, accessories of tool holders, tool holders, etc., can solve the problems of uncontrollable size of workpieces, insufficient clamping length, and broken blade 3. , to achieve the effect of improving clamping stability and processing safety, improving compression strength, and avoiding fracture or cracking

Active Publication Date: 2010-04-21
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the contact length between the clamping surface of the clamping part on the blade 3 and the groove body 2 is very small. Compared with the length of the upper positioning groove of the blade 3, it does not exceed the first half of the positioning groove, or even exceeds 1 / 3 of the length. , that is to say, the second half of the upper positioning groove of the blade 3, or even 2 / 3 of the rear end length is not in contact with any clamping surface of the tool holder body 1, which is far from enough in the clamping length
During the processing, because the blade 3 is affected by the axial force, the blade 3 is easy to take the small section where the upper positioning groove of the blade 3 is in contact with the clamping surface of the tool holder as the center of rotation, and the blade 3 is easily moved, resulting in the workpiece being processed The uncontrollable size may even cause the blade 3 to break and the product to be scrapped, etc.

Method used

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  • Enhanced cutter holder for clamping indexable cutter blade
  • Enhanced cutter holder for clamping indexable cutter blade
  • Enhanced cutter holder for clamping indexable cutter blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as Figure 1 to Figure 4 As shown, the reinforced tool holder for clamping the indexable blade of the present invention includes a tool holder body 1, the tool holder body 1 is divided into a neck 11, an upper clamping part 12 and a lower support part 13, and the neck 11 1. The upper clamping part 12 and the lower support part 13 enclose a tank body 2, the tank body 2 is divided into a blade clamping section 21 and an extension section 22 extending to the neck, and the knife holder body 1 is equipped with a hole that runs through the tank body 2 The compression screw 4 of the extension section 22, the upper clamping part 12 includes a front clamping part 122 and a rear clamping part 121, the rear clamping part 121 is provided with an elastic groove 123, and the elastic groove 123 makes the rear clamping part 121 have an independent Elasticity and deformation space, through the elastic deformation of the rear clamping part 121, the compression strength of t...

Embodiment 2

[0027] Embodiment 2: as Figure 5 As shown, this embodiment is basically the same as Embodiment 1, the only difference is that the angle difference α is set between the front clamping surface 124 and the rear clamping surface 125, and 0°<α<90°, in this embodiment α=15 °, because a reasonable clamping angle difference is set between the front clamping surface 124 and the rear clamping surface 125, the pressing forces of the front clamping surface 124, the rear clamping surface 125 and the blade 3 are reasonably distributed, so that The front and rear ends of the upper and lower clamping grooves of the blade 3 are in contact with the corresponding clamping surfaces on the tool holder body 1 to achieve an ideal clamping effect, so that the blade 3 is stably fixed on the tool holder body 1 from beginning to end.

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PUM

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Abstract

The invention discloses an enhanced cutter holder for clamping an indexable cutter blade, which comprises a cutter holder body. The cutter holder body comprises a neck part, an upper chucking part and a lower supporting part. The neck part, the upper chucking part and the lower supporting part enclose into a tank body. The tank body comprises a cutter blade clamping segment and an extension segment extending to the neck part. The upper chucking part comprises a front chucking part and a rear chucking part. The rear chucking part is provided with an elastic groove. The enhanced cutter holder for clamping the indexable cutter blade has the advantages of enhancing the chucking power and improving processing safety and stability.

Description

technical field [0001] The invention relates to the technical field of metal cutting, in particular to a tool holder for clamping an indexable insert. Background technique [0002] In the metal turning process, it is often encountered that it is necessary to turn narrow grooves in the workpiece or to cut off the workpiece. The metal cutting tools used for such work are usually made of more expensive hard materials. In order to save cost, the tool is made into two parts: the blade and the tool holder. The blade is made of hard material, has a cutting edge and a certain installation and positioning structure, and can be installed and fixed by the clamping force provided by external forces such as screw compression. When the cutting edge is worn, the insert can be removed from the holder and replaced with another insert to continue cutting. Because the blade is mostly a structure with a relatively small width and a relatively large aspect ratio, it is difficult to fully compre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B29/04B23B29/12B23B27/16
Inventor 王云志刘敏张京王社权
Owner ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD