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Clamping device

A technology of clamping device and connecting device, which is applied to the accessories of tool holders, couplings, manufacturing tools, etc., and can solve problems such as clamping that no longer guarantees safety

Inactive Publication Date: 2007-11-28
SCHUNK GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, a disadvantage has also been found. With the extremely high speed of more than 100,000 rpm, the clamping device has a tendency to loosen under the influence of the acting centrifugal force, so that a safe clamping is no longer guaranteed.

Method used

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Examples

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Embodiment Construction

[0017] Figures 1 and 2 show an exemplary embodiment of a clamping device 1 according to the invention, which can be configured, for example, as a chuck for clamping tool heads on a working spindle of a machine tool, or can be integrated directly into the machine tool in the working spindle. The clamping device 1 comprises a chassis 2 with a polygonal outer contour, in which a central socket 3 for the part to be clamped is arranged. Sector-shaped or kidney-shaped cavities 4 are provided in the chassis 2 around the sockets 3 , which each extend over a circumferential area of ​​approximately 100° and can be inserted into the chassis 2 , for example by means of an etching or milling process. At the same time, webs 2 a remain between the cavities 4 , via which the wall regions of the chassis 2 outside the cavities 4 can be connected to the wall regions inside the cavities 4 . FIG. 1 and FIG. 2 likewise show that the cavity 4 is connected to the socket 3 by a radial cutout 9 , whic...

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PUM

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Abstract

The invention relates to a clamping device which comprises a base (2), having a center holding fixture (3) for a structural component to be clamped and a plurality of cavities (4) arranged around said holding fixture (3). The base (2) can be elastically deformed in such a manner by radial compressive forces (F) applied from the outside in the area of the cavities (3) that a structural component to be clamped can be inserted in the holding fixture (3) and can be elastically returned to its former shape by reducing or releasing the radial compressive forces, thereby establishing a pressure connection with the structural component to be clamped. The invention is characterized in that centrifugal counterweights (5) are provided inside the cavities (4).

Description

technical field [0001] The invention relates to a clamping device with a base plate which has a central socket for a part to be clamped and has a plurality of cavities around the socket, wherein the base plate can The radial pressure is elastically deformed in such a way that the part to be clamped can be inserted into the socket and can be elastically restored to its original shape by reducing or increasing the radial pressure so that the pressure with the part to be clamped The connection is established. Background technique [0002] A clamping device of this type is known, for example, from DE 198 34 739 C1. In this type of clamping device, the clamping device is configured as a polygon and can be rounded by the application of radial pressure. During this process, the region of the chassis between the points of application of the force is deformed in such a way that the socket is enlarged and can be inserted into the tool holder. When the radial force is reduced or inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D1/08B23B31/30
CPCY10T279/247B23B31/02B23B31/14Y10T279/17418F16D1/0805B23B31/1177Y10T279/32Y10T279/17316F16D1/0858B23B31/141
Inventor 托马斯·雷茨巴赫
Owner SCHUNK GMBH & CO KG
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