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US 7,261,024 B2Granted
Device for clamping a workpiece along a rotatably driven longitudinal axis
AssigneeVollmer Werke Maschinenfabrik GmbH
InventorsPeter Bailer, Siegfried Veil
Life of this patent
Estimating the term…
Abstract
The device is constructed with a tensioning spindle (12), a counter-holder (14) and a carrier (30), at least the tensioning spindle (12) being mounted such that it is rotatable about the longitudinal axis, and the carrier (14) being fixed to the tensioning spindle (12) and, when the workpiece (50) is clamped between the tensioning spindle (12) and the counter-holder (14), being capable of being brought into engagement with the workpiece (50) in such a way that it transmits a rotary movement of the tensioning spindle (12) to the workpiece (50). The device furthermore provides for the carrier to have a spring element (30) which can be coupled to the workpiece (50) under prestress to transmit a torque.
Claims16
A device (10;
- 110) for clamping a workpiece (50, 50a, 50b, 50c 50d;
- 150d) on a rotatably drivable longitudinal axis having:
- a tensioning spindle (12;
- 112)
- a counter-holder (14;
- 114) and
- a carrier,
- at least the tensioning spindle (12;
- 112) being mounted such that it is rotatable about the longitudinal axis (A), and
- the carrier being fixed to the tensioning spindle (12;
- 112) and, when the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) is clamped between the tensioning spindle (12;
- 112) and the counter-holder (14;
- 114), being capable of being brought into engagement with the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) in such a way that it transmits a rotary movement of the tensioning spindle (12;
- 112) to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d),
- the carrier having a spring element (30;
- 130),
- characterised by an adapter element (58;
- 158) which is constructed to be fixed to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) and which cooperates with the tensioning spindle (12;
- 112) to clamp the workpiece (50, 50a, 50b, 50c, 50d;
- 150d), the spring element (30;
- 130) acting on the adapter element (58, 58a, 58b, 58c, 58d;
- 158d) under prestress to transmit a torque or being capable of being brought into engagement with said adapter element.
23 more elements
A device (10;
- 110) for clamping a workpiece (50, 50a, 50b, 50c 50d;
- 150d) on a rotatably drivable longitudinal axis having:
- a tensioning spindle (12;
- 112)
- a counter-holder (14;
- 114) and
- a carrier,
- at least the tensioning spindle (12;
- 112) being mounted such that it is rotatable about the longitudinal axis (A), and
- the carrier being fixed to the tensioning spindle (12;
- 112) and, when the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) is clamped between the tensioning spindle (12;
- 112) and the counter-holder (14;
- 114 being capable of being brought into engagement with the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) in such a way that it transmits a rotary movement of the tensioning spindle (12;
- 112) to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d).
- the carrier having a spring element (30;
- 130),
- characterised by an adapter element (58;
- 158) which is constructed to be fixed to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) and which cooperates with the tensioning spindle (12;
- 112) to clamp the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) the sprint element (30;
- 130) acting on the adapter element (58, 58a, 58b, 58c, 58d;
- 158d) under prestress to transmit a torque or being capable of being brought into engagement with said adapter element;
- and,
- characterised in that the spring element comprises a leaf spring (30;
- 130) which, at one end, is fixed to the tensioning spindle (12;
- 112) and, at its free end, is constructed with an engagement element (36;
- 136), the engagement element (36;
- 136) being capable of deflection and of being brought into torsion-resistant engagement with the workpiece (50, 50a, 50b, 50c, 50d;
- 150d).
30 more elements
A device (10;
- 110) for clamping a workpiece (50, 50a, 50b, 50c, 50d;
- 150d) on a rotatably drivable longitudinal axis having:
- a tensioning spindle (12;
- 112)
- a counter-holder (14;
- 114) and
- a carrier,
- at least the tensioning spindle (12;
- 112) being mounted such that it is rotatable about the longitudinal axis (A), and
- the carrier being fixed to the tensioning spindle (12;112) and, when the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) is clamped between the tensioning spindle (12;
- 112) and the counter-holder (14:114) being capable of being brought into engagement with the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) in such a way that it transmits a rotary movement of the tensioning spindle (12;
- 112) to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d),
- the carrier having a spring element (30;
- 130),
- characterised by an adapter element (58;
- 158) which is constructed to be fixed to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) and which cooperates with the tensioning spindle (12;
- 112) to clamp the workpiece (50, 50a, 50b, 50c, 50d;
- 150d), the spring element (30;
- 130) acting on the adapter element (58, 58a, 58b, 58c, 58d;
- 158d) under prestress to transmit a torque or being capable of being brought into engagement with said adapter element,
- in that the spring element comprises a pressure spring which, at its free end, is constructed with an engagement body,
- characterised in that the pressure spring and the engagement body are at least partially received in a receiving bore in the tensioning spindle or the counter-holder and are displaceable in said receiving bore with compression of the pressure spring.
23 more elements
A device (10;
- 110) for clamping a workpiece (50, 50a, 50b, 50c, 50d;
- 150d) on a rotatably drivable longitudinal axis having:
- a tensioning spindle (12;
- 112)
- a counter-holder (14;
- 114) and
- a carrier,
- at least the tensioning spindle (12;
- 112) being mounted such that it is rotatable about the longitudinal axis (A), and
- the carrier being fixed to the tensioning spindle (12;
- 112) and, when the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) is clamped between the tensioning spindle (12;
- 112) and the counter-holder (14;
- 114), being capable of being brought into engagement with the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) in such a way tat it transmits a rotary movement of the tensioning spindle (12;
- 112) to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d),
- the carrier having a spring element (30;
- 130),
- characterised by an adapter element (58;
- 158) which is constructed to be fixed to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) and which cooperates with the tensioning spindle (12;
- 112) to clamp the workpiece (50, 50a, 50b, 50c, 50d;
- 150d), the spring element (30;
- 130) acting on the adapter element (58, 58a, 58b, 58c, 58d;
- 158d) under prestress to transmit a torque or being capable of being brought into engagement with said adapter element,
- characterised in that the adapter element (58;
- 158) has an engagement groove (70;
- 170) which can be brought into torque-transmitting engagement with the engagement element (36;
- 136) or engagement body.
27 more elements
A device (10;
- 110) for clamping a workpiece (50, 50a, 50b, 50c, 50d;
- 150d) on a rotatably drivable longitudinal axis having:
- a tensioning spindle (12;
- 112)
- a counter-holder (14;
- 114) and
- a carrier,
- at least the tensioning spindle (12;
- 112) being mounted such that it is rotatable about the longitudinal axis (A), and
- the carrier being fixed to the tensioning spindle (12;
- 112) and, when the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) is clamped between the tensioning spindle (12;
- 112) and the counter-holder (14;
- 114), being capable of being brought into engagement with the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) in such a way tat it transmits a rotary movement of the tensioning spindle (12;
- 112) to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d),
- the carrier having a spring element (30;
- 130).
- characterised by an adapter element (58;
- 158) which is constructed to be fixed to the workpiece (50, 50a, 50b, 50c, 50d;
- 150d) and which cooperates with the tensioning spindle (12;
- 112) to clamp the workpiece (50, 50a, 50b, 50c, 50d;
- 150d), the spring element (30;
- 130) acting on the adapter element (58, 58a, 58b, 58c, 58d;
- 158d) under prestress to transmit a torque or being capable of being brought into engagement with said adapter element,
- characterised in that, at its outer circumference, the adapter element (58;
- 158) is constructed with a gripper channel (68;
- 168) in which an external gripper can engage to transport the adapter element (58;
- 158).
27 more elements
Dependencies are inferred from the claim text.