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Tool holder equipped with a damping means

A shock absorber, tool holder technology, applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc.

Active Publication Date: 2009-10-14
EPB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, this damping device can only act on the stiffness of the shaft at its ends, so that the damping tends to occur in the axial direction and thus cannot be optimal

Method used

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  • Tool holder equipped with a damping means
  • Tool holder equipped with a damping means

Examples

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Embodiment Construction

[0015] Figures 1 to 3 Shown as an example is a tool holder 1 in the form of a reaming head, which is provided with an elongated shock absorber 2 arranged in a housing 3 at the end of the tool holder 1, which has a corresponding shape and size and It is closed at its ends by a body 4 for receiving a reaming head. It is known that the end of the chamber 3 of the tool holder 1 is closed by directly screwing the body 4 for receiving the reaming head with the centering device 41, or by fitting the body 4 in the end of the chamber with screws to achieve. Figures 1 to 3 An example of an embodiment of the invention is shown, but it is obvious that the invention can also be applied, for example, in milling cutter holders.

[0016] It is known that the housing 3 of the tool holder 1 is made in such a way that, relative to a solid cylinder, at most only a 5% loss of static stiffness occurs and the depth of the housing is equal to twice the diameter of the tool holder 1. times. In t...

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Abstract

The present invention relates to a tool holder, such as a reaming head (1), or a milling arbor, provided with a damping means (2) in the form of an elongated body, which is arranged in an end compartment (3) of the tool holder (1), which compartment is of appropriate shape and size, and closed at end thereof by a body (4) for receiving a reaming head or by a milling element. Tool holder characterized in that the damping means (2) is of the type presenting only radial absorption, and is provided with at least one elastically deformable means (5), at least close to each end, where said elastically deformable means (5) extend between the envelope of the damping means (2) and the wall of the compartment (3) of the tool holder (1), and are clamped between the wall of the compartment (3) and the damping means (2), and where the ends of the damping means extend in the compartment (3) without stress. The invention is applicable more particularly in the field of accessories for machine tools, with digital control, machining centers, flexible cells and workshops.

Description

technical field [0001] The invention relates to accessories of machine tools such as numerical control machine tools, machining centers, flexible units and workshops, and relates to a tool holder provided with a shock absorber. Background technique [0002] The tool holder tends to vibrate due to its special structure, which has a certain influence on the inherent function of the tool holder. This tendency to vibrate is increased by the ever-increasing operating speeds of today's machine tools. [0003] In order to avoid these defects, someone has proposed a tool holder with a shock absorber to adapt its rigidity to the working conditions. [0004] For this purpose, such a device is currently known, see especially US-A-3 447 402, which essentially consists of a shock-absorbing weight mounted in an axial housing and clamped in elastically deformable Retained in the axial housing between the bodies, the adjustment of stiffness is carried out by means of spring-loaded abutmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B21/00
CPCB23B29/022B23B2226/33F16F7/108Y10T409/304312Y10T408/76
Inventor 马蒂厄·奥斯特曼阿兰·弗雷尔穆斯
Owner EPB
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