A device for holding a workpiece, the device comprising a base, a first jaw member, a movable jaw member, and features which allow the movable jaw member to be moved in large increments relative to the first jaw member in addition to features which allow the movable jaw member to be moved in smaller
A device for holding a workpiece, the device comprising a base, a first jaw member, a movable jaw member, and features which allow the movable jaw member to be moved in large increments relative to the first jaw member in addition to features which allow the movable jaw member to be moved in smaller increments. The device can include a drive member operably engaged with the base and the movable jaw member such that the operation of the drive member can move the movable jaw member in small increments. The movable jaw member can include a connection member, or claw, which can operatively engage the movable jaw member with the drive member. The connection member can be moved between first and second positions to disengage the movable jaw member from the drive member such that the movable jaw member can be slid relative to the first jaw member in large increments.
대표청구항▼
1. A workholding apparatus comprising: a base;a longitudinal member comprising an array of engagement portions;a drive member operably engaged with said longitudinal member;a first jaw member;a second jaw member slidably engaged with and supported by said base, said second jaw member comprising a li
1. A workholding apparatus comprising: a base;a longitudinal member comprising an array of engagement portions;a drive member operably engaged with said longitudinal member;a first jaw member;a second jaw member slidably engaged with and supported by said base, said second jaw member comprising a link movable between a disengaged position in which said link is operatively disengaged from said longitudinal member and an engaged position in which said link is engaged with said longitudinal member;a selectively operable motor, wherein said motor is configured to move said drive member and said second jaw member relative to said first jaw member when said link is engaged with said longitudinal member, and wherein said second jaw member is movable relative to said first jaw member and said drive member when said link is disengaged from said longitudinal member; anda socket, wherein said motor comprises a rotatable shaft, and wherein said socket rotatably couples said rotatable shaft to said drive member. 2. The workholding apparatus of claim 1, wherein said socket comprises a drive aperture, wherein said drive member comprises a drive head positioned within said drive aperture, and wherein said drive head is configured to translate within said drive aperture. 3. The workholding apparatus of claim 2, wherein said drive head is threadably engaged with said drive aperture. 4. A workholding apparatus comprising: a base;a longitudinal member comprising an array of engagement portions;a drive member operably engaged with said longitudinal member, wherein said drive member is slidably retained to said base;a first jaw member;a second jaw member slidably engaged with and supported by said base, said second jaw member comprising a link movable between a disengaged position in which said link is operatively disengaged from said longitudinal member and an engaged position in which said link is engaged with said longitudinal member; anda selectively operable motor, wherein said motor is configured to move said drive member and said second jaw member relative to said first jaw member when said link is engaged with said longitudinal member, and wherein said second jaw member is movable relative to said first jaw member and said drive member when said link is disengaged from said longitudinal member. 5. The workholding apparatus of claim 4, wherein said drive member comprises a drive pin, wherein said base comprises a longitudinal slot, and wherein said drive pin is configured to traverse said longitudinal slot when said motor moves said drive member. 6. The workholding apparatus of claim 4, wherein said base defines a motor cavity, wherein said motor is positioned within said motor cavity, and wherein said motor is contained within said base. 7. A workholding apparatus comprising: a base;a longitudinal member comprising an array of engagement portions;a drive member operably engaged with said longitudinal member;a first jaw member;a second jaw member slidably engaged with and supported by said base, said second jaw member comprising a link movable between a disengaged position in which said link is operatively disengaged from said longitudinal member and an engaged position in which said link is engaged with said longitudinal member; anda selectively operable motor, wherein said motor is configured to move said drive member and said second jaw member relative to said first jaw member when said link is engaged with said longitudinal member, and wherein said second jaw member is movable relative to said first jaw member and said drive member when said link is disengaged from said longitudinal member;wherein said longitudinal member comprises a first longitudinal member, wherein said workholding apparatus comprises a second longitudinal member, and wherein said motor is mounted to said base intermediate said first longitudinal member and said second longitudinal member. 8. The workholding apparatus of claim 4, wherein said motor comprises a DC gear motor. 9. A workholding apparatus, comprising: a base comprising a workpiece support surface;a rack comprising an array of engagement members;a drive member operably engaged with said rack;a first jaw member; anda second jaw member slidably engaged with and supported by said base, wherein said second jaw member comprises a connector movable between a disengaged position in which said connector is operatively disengaged from said rack and an engaged position in which said connector is engaged with said rack; andan electric motor configured to move said drive member, said rack, and said second jaw member relative to said first jaw member when said connector is engaged with said rack, and wherein said second jaw member is movable relative to said drive member, said rack, and said first jaw member when said connector is disengaged from said rack. 10. The workholding apparatus of claim 9, further comprising a socket, wherein said electric motor comprises a rotatable shaft, and wherein said socket rotatably couples said rotatable shaft to said drive member. 11. The workholding apparatus of claim 10, wherein said socket comprises a drive aperture, wherein said drive member comprises a drive head positioned within said drive aperture, and wherein said drive head is configured to translate within said drive aperture. 12. The workholding apparatus of claim 11, wherein said drive head is threadably engaged with said drive aperture. 13. The workholding apparatus of claim 9, wherein said drive member is slidably retained to said base. 14. The workholding apparatus of claim 13, wherein said drive member comprises a drive pin, wherein said base comprises a longitudinal slot, and wherein said drive pin is configured to traverse said longitudinal slot when said electric motor moves said drive member. 15. The workholding apparatus of claim 9, wherein said base defines a motor cavity, wherein said electric motor is positioned within said motor cavity, and wherein said electric motor is contained within said base. 16. The workholding apparatus of claim 9, wherein said rack comprises a first rack, wherein said workholding apparatus comprises a second rack, and wherein said motor is mounted to said base intermediate said first rack and said second rack. 17. The workholding apparatus of claim 9, wherein said motor comprises a DC gear motor. 18. A workholding apparatus, comprising: a base;a drive member;a first jaw member;a second jaw member slidably engaged with and supported by said base;connection means for selectively engaging said second jaw member with said drive member and for selectively disengaging said second jaw member from said drive member; andmotor means for moving said second jaw member relative to said first jaw member when said second jaw member is engaged with said drive member, and wherein said second jaw member is movable relative to said first jaw member and said drive member when said connection means is disengaged from said drive member.
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