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 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 comprising a workpiece support surface;a first lateral member comprising a first bottom surface and a first array of engagement members defined in said first bottom surface;a second lateral member comprising a second bottom surface and a second array of
1. A workholding apparatus, comprising: a base comprising a workpiece support surface;a first lateral member comprising a first bottom surface and a first array of engagement members defined in said first bottom surface;a second lateral member comprising a second bottom surface and a second array of engagement members defined in said second bottom surface;a drive member operably engaged with said first lateral member and said second lateral member, wherein said drive member is configured to move said first lateral member and said second lateral member simultaneously;a first jaw member; anda second jaw member slidably engaged with and supported by said base, said second jaw member comprising: a first lateral link movable between a disengaged position in which said first lateral link is operatively disengaged from said first lateral member and an engaged position in which said first lateral link is engaged with said first lateral member; anda second lateral link movable between a disengaged position in which said second lateral link is operatively disengaged from said second lateral member and an engaged position in which said second lateral link is engaged with said second lateral member, wherein said drive member is configured to move said second jaw member relative to said first jaw member when at least one of said first lateral link is engaged with said first lateral member and said second lateral link is engaged with said second lateral member, and wherein said second jaw member is movable relative to said first jaw member and said drive member when said first lateral link is disengaged from said first lateral member and said second lateral link is disengaged from said second lateral member. 2. The workholding apparatus of claim 1, further comprising a spring configured to bias said first lateral link into engagement with said first lateral member and said second lateral link into engagement with said second lateral member. 3. The workholding apparatus of claim 2, wherein said second jaw member further comprises a housing including an internal cavity, and wherein said spring is positioned within said internal cavity. 4. The workholding apparatus of claim 3, wherein said first lateral link is connected to said second lateral link by a connecting member, and wherein said spring is configured to transmit a biasing force to said first lateral link and said second lateral link through said connecting member in order to position said first lateral link in its said engaged position and said second lateral link in its said engaged position. 5. The workholding apparatus of claim 4, wherein said connecting member comprises a plate, wherein said spring is positioned intermediate said second jaw member housing and said plate, wherein said plate is mounted to said first lateral link and said second lateral link, wherein said spring is configured to apply said biasing force to said plate, and wherein said plate is configured to transmit said biasing force to said connection member. 6. The workholding apparatus of claim 1, wherein said first lateral link is connected to said second lateral link by a connecting member extending through said second jaw member, wherein said connecting member is rotatably supported by said second jaw member, and wherein said connecting member is configured to transmit movement between said first lateral link and said second lateral link. 7. The workholding apparatus of claim 6, wherein said first lateral link and said second lateral link are configured to pivot about a common axis. 8. The workholding apparatus of claim 1, wherein said first lateral member and said second lateral member are positioned below said workpiece support surface. 9. The workholding apparatus of claim 1, wherein said second jaw member further comprises a housing comprising: a first lateral side;a first lateral recess defined in said first lateral side, wherein at least a portion of said first lateral link is positioned within said first lateral recess;a second lateral side; anda second lateral recess defined in said second lateral side, wherein at least a portion of said second lateral link is positioned within said second lateral recess. 10. The workholding apparatus of claim 1, wherein said first jaw member is engaged with said drive member. 11. A workholding apparatus, comprising: a base comprising a workpiece support surface;a first lateral member comprising a first bottom surface and a first array of engagement members defined in said first bottom surface;a second lateral member comprising a second bottom surface and a second array of engagement members defined in said second bottom surface;a drive member operably engaged with said first lateral member and said second lateral member, wherein said drive member is configured to move said first lateral member and said second lateral member simultaneously;a first jaw member; anda second jaw member slidably engaged with and supported by said base, said second jaw member comprising: a housing comprising a cavity;a biasing member positioned within said cavity;a first lateral connector movable between a disengaged position in which said first lateral connector is operatively disengaged from said first lateral member and an engaged position in which said first lateral connector is engaged with said first lateral member, wherein said first lateral connector extends into said cavity, and wherein said biasing member is configured to apply a biasing force to said first lateral connector to position said first lateral connector in said engaged position; anda second lateral connector movable between a disengaged position in which said second lateral connector is operatively disengaged from said second lateral member and an engaged position in which said second lateral connector is engaged with said second lateral member, wherein said second lateral connector extends into said cavity, wherein said biasing member is configured to apply a biasing force to said second lateral connector to position said second lateral connector in said engaged position, wherein said drive member is configured to move said second jaw member relative to said first jaw member when at least one of said first lateral connector is engaged with said first lateral member and said second lateral connector is engaged with said second lateral member, and wherein said second jaw member is movable relative to said first jaw member and said drive member when said first lateral connector is disengaged from said first lateral member and said second lateral connector is disengaged from said second lateral member. 12. The workholding apparatus of claim 11, wherein said first lateral connector is connected to said second lateral connector by a connecting member, and wherein said biasing member is configured to transmit said biasing force to said first lateral connector and said second lateral connector through said connecting member in order to position said first lateral connector in its said engaged position and said second lateral connector in its said engaged position. 13. The workholding apparatus of claim 12, wherein said connecting member comprises a plate, wherein said biasing member is positioned intermediate said housing and said plate, wherein said plate is mounted to said first lateral connector and said second lateral connector, wherein said spring is configured to apply said biasing force to said plate, and wherein said plate is configured to transmit said biasing force to said connecting member. 14. The workholding apparatus of claim 10, wherein said first lateral connector is connected to said second lateral connector by a connecting member extending through said housing, wherein said connecting member is rotatably supported by said housing, and wherein said connecting member is configured to transmit movement between said first lateral connector and said second lateral connector. 15. The workholding apparatus of claim 14, wherein said first lateral connector and said second lateral connector are configured to pivot about a common axis. 16. The workholding apparatus of claim 11, wherein said first lateral member and said second lateral member are positioned below said workpiece support surface. 17. The workholding apparatus of claim 11, wherein said housing further comprises: a first lateral side;a first lateral recess defined in said first lateral side, wherein at least a portion of said first lateral connector is positioned within said first lateral recess;a second lateral side; anda second lateral recess defined in said second lateral side, wherein at least a portion of said second lateral connector is positioned within said second lateral recess. 18. The workholding apparatus of claim 11, wherein said first jaw member is engaged with said drive member. 19. A workholding apparatus, comprising: a base comprising a workpiece support surface;a first lateral member comprising a first bottom surface and a first array of engagement members defined in said first bottom surface;a second lateral member comprising a second bottom surface and a second array of engagement members defined in said second bottom surface;a drive member operably engaged with said first lateral member and said second lateral member, wherein said drive member is configured to move said first lateral member and said second lateral member simultaneously;a first jaw member; anda second jaw member slidably engaged with and supported by said base, said second jaw member comprising: a housing;first selectively rotatable connection means for selectively disengaging said second jaw member from said first array of engagement members of said first lateral member; andsecond selectively rotatable connection means for selectively disengaging said second jaw member from said second array of engagement members of said second lateral member, wherein said first selectively rotatable connection means is configured to rotate concurrently with said second selectively rotatable connection means to operably disengage said second jaw member from said drive member.
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