Tool holder and measuring sensor having a tool holder

Details Tool holder and measuring sensor having a tool holder Tool holder and measuring sensor having a tool holder

2011-05-24

2011-05-24

Gates, Eric A (Department: 3726)

Chucks or sockets

Accessory or component

Protection means; e.g., cover, seal, overstress prevention,...

C279S142000, C279S158000, C409S232000, C356S623000, C702S094000

Reexamination Certificate

active

07946595

ABSTRACT:
A tool holder, in particular for a measuring sensor, with an interface to a spindle of a machine tool is proposed. The tool holder comprises, as seen from the interface for the spindle, a material portion which differs from the customary basic material of a tool holder in a lower coefficient of linear expansion α and/or in a lower heat conductivity λ. According to the invention, the material portion affords thermal decoupling between the tool-side portion of the tool holder and a tool received therein from the tool spindle for reducing a length change on account of an introduction of heat coming from a comparatively hot tool spindle.

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