Clamping device for a tool on a machine tool
AssigneeIvoclar Vivadent AG
InventorsMarkus Lichtensteiger, Vadim Bogdan
Life of this patent
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Abstract
The invention relates to a clamping device (10) for a tool (18) on a machine tool having a holder block (12) with at least 2, in particular a multiplicity of, apertures (16) for receiving clamping sleeves (14), wherein at least two clamping sleeves (14) are received in the apertures (16). Each clamping sleeve (12) has a clamping element (36), with which a tool (18), in particular a shaft (20) of a tool (18), can be clamped. The clamping sleeve (14) at least partially passes through in each case the aperture (16) in the holder block (12) and has, at its end opposite the clamping element (36), the rear end, an expansion element (34) which engages behind the holder block (12) or a counter-support element (30) of the holder block (12).
Claims17
A clamping device for a tool on a machine tool comprising
- a holder block (12), having at least two apertures for receiving clamping sleeves,
- wherein the clamping sleeves comprise at least two clamping sleeves each of which are received in an aperture of the at least two apertures,
- wherein each of the at least two clamping sleeves (14) has a clamping element (36) with which a tool (18) can be clamped, and
- wherein each of the at least two clamping sleeves (14) at least partially passes through an aperture of the at least two apertures (16) in the holder block (12) and each of the at least two clamping sleeves, has, at an end opposite the clamping element (36), an expansion element (34) which engages behind the holder block (12) or at a counter-support element (30) of the holder block (12),
- wherein a compression spring (26) extends between each of the at least two clamping sleeves (14) and the counter-support element (30) of an aperture of the at least two apertures (16) is configured to urge an abutment shoulder (46) of the expansion element (34) against the counter-support element (30) of the holder block (12).
A machine tool comprising
- a clamping device for a tool on the machine tool,
- a holder block having at least two apertures for receiving clamping sleeves,
- wherein each of the clamping sleeves are received in an aperture of the at least two apertures,
- wherein each clamping sleeve (14) has a clamping element (36), with which a tool (18) or a shaft (20) of the tool (18), can be clamped, and
- wherein each clamping sleeve (14) passes through a counter-support element (30) of the holder block (12) or an aperture of the at least two apertures (16) in the holder block (12) and has, at an end opposite the clamping element (36), an expansion element (34) which engages behind a counter-support element (30) of the holder block (12),
- wherein a compression spring (26) extends between each clamping sleeve (14) and the counter-support element (30) of the holder block (12), an aperture of the at least two apertures (16) is configured to urge an abutment shoulder (46) of the expansion element (34) against the counter-support element (30) of the holder block (12).
Dependencies are inferred from the claim text.