IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0897157
(2007-08-29)
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| 등록번호 |
US-8109494
(2012-02-07)
|
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
- Chick Workholding Solutions, Inc.
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
10 인용 특허 :
113 |
초록
▼
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
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1. A workholding apparatus, comprising: a base, comprising: a support portion comprising a longitudinal axis, first longitudinal side, and a second longitudinal side;a first longitudinal rack movably mounted to said support portion along said first longitudinal side;a second longitudinal rack movabl
1. A workholding apparatus, comprising: a base, comprising: a support portion comprising a longitudinal axis, first longitudinal side, and a second longitudinal side;a first longitudinal rack movably mounted to said support portion along said first longitudinal side;a second longitudinal rack movably mounted to said support portion along said second longitudinal side; anda crossbar engaged with said first longitudinal rack and said second longitudinal rack;a drive member operably engaged with said crossbar, wherein said drive member is configured to move said crossbar along said longitudinal axis;a first jaw member; anda second jaw member slidably engaged with said base and supported by said support portion, wherein said crossbar is engaged with said second jaw member, said second jaw member comprising: a first lateral claw movable between a disengaged position in which said first lateral claw is operatively disengaged from said first longitudinal rack and an engaged position in which said first lateral claw is engaged with said first longitudinal rack;a second lateral claw movable between a disengaged position in which said second lateral claw is operatively disengaged from said second longitudinal rack and an engaged position in which said second lateral claw is engaged with said second longitudinal rack, 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 claw is engaged with said first longitudinal rack and said second lateral claw is engaged with said second longitudinal rack, and wherein said second jaw member is movable relative to said first jaw member and said drive member when said first lateral claw is in said second position disengaged from said first longitudinal rack and said second lateral claw is disengaged from said second longitudinal rack. 2. The workholding apparatus of claim 1, further comprising a first spring configured to bias said first lateral claw into engagement with said first longitudinal rack and a second spring configured to bias said second lateral claw into engagement with said second longitudinal rack. 3. The workholding apparatus of claim 1, further comprising a first biasing member configured to move said first lateral claw between its said disengaged position and said engaged position and a second member configured to move said first lateral claw between its said disengaged position and said engaged position. 4. The workholding apparatus of claim 1, wherein said second jaw member further includes a first pivot about which said first lateral claw can be rotated and a second pivot about which said second lateral claw can be rotated, and wherein said first pivot and said second pivot lie along a line. 5. The workholding apparatus of claim 4, wherein said first pivot defines a first pivot axis, wherein said second pivot defines a second pivot axis, wherein said drive member defines a displacement axis along which said second jaw is displaced, and wherein said displacement axis is not parallel to said first pivot axis and said second pivot axis. 6. The workholding apparatus of claim 4, wherein said second jaw member includes a housing, and wherein said first pivot includes a first pivot pin rotatably connecting said first lateral claw to said housing and said second pivot includes a second pivot pin rotatably connecting said second lateral claw to said housing. 7. The workholding apparatus of claim 1, wherein said first longitudinal rack includes a first plurality of recesses, wherein said second longitudinal rack includes a second plurality of recesses, wherein said first lateral claw includes a first projection configured to be received within at least one of said recesses and secure said second jaw member to said first longitudinal rack when said first lateral claw is in said engaged position, and wherein said second lateral claw includes a second projection configured to be received within at least one of said recesses and secure said second jaw member to said second longitudinal rack when said second lateral claw is in said engaged position. 8. The workholding apparatus of claim 7, wherein said first projection is not received within one of said recesses when said first lateral claw is in said disengaged position, and wherein said second projection is not received within one of said recesses when said second lateral claw is in said disengaged position. 9. The workholding apparatus of claim 1, wherein said support portion comprises a workpiece support surface, and wherein said first longitudinal rack and said second longitudinal rack are positioned below said workpiece support surface. 10. The workholding apparatus of claim 1, wherein said second jaw member 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 claw 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 claw is positioned within said second lateral recess. 11. The workholding apparatus of claim 2, wherein said first spring is positioned within said first lateral claw, and wherein said second spring is positioned within said second lateral claw. 12. 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 said base, said second jaw comprising: 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 the concurrent disengagement of said first selectively rotatable connection means and the second selectively rotatable connection means is required to operably disengage said second jaw member from said driver member. 13. The workholding apparatus of claim 12, further comprising first biasing means for biasing said first selectively rotatable connection means into operative engagement with said first lateral member and second biasing means for biasing said second selectively rotatable connection means into operative engagement with said second lateral member. 14. A workholding apparatus, comprising: a base, comprising: a support portion comprising a longitudinal axis, first longitudinal side, and a second longitudinal side;a first longitudinal rack movably mounted to said support portion along said first longitudinal side;a second longitudinal rack movably mounted to said support portion along said second longitudinal side; anda crossbar engaged with said first longitudinal rack and said second longitudinal rack;a drive member operably engaged with said crossbar, wherein said drive member is configured to move said crossbar along said longitudinal axis;a first jaw member; anda second jaw member slidably engaged with said base and supported by said support portion, wherein said crossbar is engaged with said second jaw member, said second jaw member comprising: a first lateral connector movable between a disengaged position in which said first lateral connector is operatively disengaged from said first longitudinal rack and an engaged position in which said first lateral connector is engaged with said first longitudinal rack;a second lateral connector movable between a disengaged position in which said second lateral connector is operatively disengaged from said second longitudinal rack and an engaged position in which said second lateral connector is engaged with said second longitudinal rack, 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 longitudinal rack and said second lateral connector is engaged with said second longitudinal rack, 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 longitudinal rack and said second lateral connector is disengaged from said second longitudinal rack. 15. The workholding apparatus of claim 14, further comprising a first spring configured to bias said first lateral connector into engagement with said first longitudinal rack and a second spring configured to bias said second lateral connector into engagement with said second longitudinal rack. 16. The workholding apparatus of claim 15, wherein said first spring is positioned within said first lateral claw, and wherein said second spring is positioned within said second lateral claw. 17. The workholding apparatus of claim 14, further comprising a first biasing member configured to move said first lateral connector between its said disengaged position and said engaged position and a second member configured to move said first lateral connector between its said disengaged position and said engaged position. 18. The workholding apparatus of claim 14, wherein said second jaw member further includes a first pivot about which said first lateral connector can be rotated and a second pivot about which said second lateral connector can be rotated, and wherein said first pivot and said second pivot lie along a line. 19. The workholding apparatus of claim 18, wherein said first pivot defines a first pivot axis, wherein said second pivot defines a second pivot axis, wherein said drive member defines a displacement axis along which said second jaw is displaced, and wherein said displacement axis is not parallel to said first pivot axis and said second pivot axis. 20. The workholding apparatus of claim 18, wherein said second jaw member includes a housing, and wherein said first pivot includes a first pivot pin rotatably connecting said first lateral connector to said housing and said second pivot includes a second pivot pin rotatably connecting said second lateral connector to said housing. 21. The workholding apparatus of claim 14, wherein said first longitudinal rack includes a first plurality of recesses, wherein said second longitudinal rack includes a second plurality of recesses, wherein said first lateral connector includes a first projection configured to be received within at least one of said recesses and secure said second jaw member to said first longitudinal rack when said first lateral connector is in said engaged position, and wherein said second lateral connector includes a second projection configured to be received within at least one of said recesses and secure said second jaw member to said second longitudinal rack when said second lateral connector is in said engaged position. 22. The workholding apparatus of claim 21, wherein said first projection is not received within one of said recesses when said first lateral connector is in said disengaged position, and wherein said second projection is not received within one of said recesses when said second lateral connector is in said disengaged position. 23. The workholding apparatus of claim 14, wherein said support portion comprises a workpiece support surface, and wherein said first longitudinal rack and said second longitudinal rack are positioned below said workpiece support surface. 24. The workholding apparatus of claim 14, wherein said second jaw member 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.
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