Flexible tooling apparatus

• US 5,722,646 A
• Filed: 08/29/1995
• Issued: 03/03/1998
• Est. Priority Date: 08/29/1995
• Status: Expired due to Term

• Current Assignee: CNA Manufacturing Systems Incorporated
• Original Assignee: CNA Manufacturing Systems Incorporated
• Inventors: Thomas, Robert J., Soderberg, Mark S., Starr, Robert A., Cook, Larry R.
• Primary Examiner(s): Watson, Robert C.
• Application Number:
  US08/520,446
• Time in Patent Office: 917 Days
• Field of Search: 269/20, 269/21, 269/77, 269/266, 269/267, 269/289 R, 269/329, 279/3, 279/4.03, 279/4.07, 279/2.02, 279/2.07
• US Class Current: 269/20
• CPC Class Codes: B23Q 1/035 with an array of longitudinally movable rods defining a reconfigurable support surface
• CPC Class Codes: B25B 11/005 Vacuum work holders
• CPC Class Codes: Y10T 29/49998 Work holding

Abstract

A flexible tooling system includes a support table with multiple openings adapted to removably accept a self-contained actuator. Each opening of the support table provides vacuum and air supply lines as well as a bus interface so that each position may be uniquely addressed and commanded separately from any other openings. The self-contained actuator has corresponding connectors for receiving the vacuum and air supply as well as for interfacing with the bus. An actuator may be placed at a particular location by insertion into the receptacle at the opening in the support table aperture. The actuator may be commanded to raise, lower, lock in position and supply vacuum separate from any other actuator.

Claims

1. A dynamic tooling system comprising:

a support table having a plurality of receiving positions thereon, ones of said receiving positions including a quick-change interface providing a pneumatic supply and an addressable bus interconnection; and

an actuator mechanism adapted to be received in at least one of said plurality of receiving positions and for interfacing with said interface and extending and retracting as powered by said pneumatic supply in response to commands received via said addressable bus interconnection.

2. A dynamic tooling system according to claim 1 wherein said interface further comprises a vacuum supply, and wherein said actuator mechanism supplies vacuum to a portion of said actuator mechanism via said interface in response to commands received via said addressable bus interconnection.

3. A dynamic tooling system according to claim 1 wherein said actuator mechanism comprises piston means having an extend side and a retract side, and valve means operative in response to commands received via said addressable bus interconnection for directing said pneumatic supply to the extend side of said piston means or to the retract side of said piston means to effect extension or retraction of said actuator mechanism as directed by said commands.

4. A dynamic tooling system according to claim 1 wherein said actuator mechanism comprises locking means for locking said actuator in a current position and valve means operative in response to commands received via said addressable bus interconnection for directing said locking means to be in either a locked state or an unlocked state.

5. A dynamic tooling system according to claim 1 wherein said actuator mechanism comprises a normally locked locking means for locking said actuator in a current position.

6. A dynamic tooling system according to claim 5 wherein said normally locked locking means comprises a collet member in interference fit with an extensible portion of said actuator mechanism.

7. A dynamic tooling system according to claim 6 further comprising a hydraulic system for hydraulically expanding said collet member to relieve the interference fit with the extensible portion of said actuator mechanism, thereby enabling said extensible portion to extend or retract.

8. A dynamic tooling system according to claim 1 further comprising damping means for governing the extension/contraction speed of said actuator mechanism.

9. A dynamic tooling system according to claim 8 wherein said damping means comprises speed control means for providing at least two governing speeds to said actuator mechanism.

10. A dynamic tooling system according to claim 1 further comprising a hydraulic system which comprises a relatively low volume/high pressure side and a relatively high volume/low pressure side and further comprising resupplying means for resupplying hydraulic fluid to the high pressure side from the low pressure side.

15. A dynamic tooling system according to claim 4 wherein said locking means comprises hydraulic locking means and wherein hydraulic fluid is supplied thereto via an internal supply channel in a body of said actuator mechanism, thereby reducing likelihood of leaking as no external plumbing is employed.

16. A dynamic tooling system according to claim 1 wherein said actuator mechanism includes an actuator interface that releasably snaps onto the interface of said one of said receiving positions so as to provide one-step engagement of the actuator with the support table.

17. A dynamic tooling system according to claim 1 wherein said interface includes an addressing unit.

11. A dynamic tooling system comprising:

a support table having a plurality of apertures therein;

pneumatic supply for providing pneumatic pressure at a plurality of positions at said support table;

vacuum supply for providing vacuum at a plurality of positions at said support table;

bus means for providing data and electrical supply at a plurality of positions at said support table; and

an actuator mechanism adapted to be removably received within at least one of said plurality of apertures, skid actuator mechanism comprising;

a quick-change interface that provides one-step engagement of the actuator with the support table;

an extensible member;

a collet means for clamping said extensible member in a given position;

hydraulic means for effecting clamping and unclamping of said collet means;

a hydraulic intensifier driving said hydraulic means;

pneumatic means for driving said hydraulic intensifier, and providing clamp/unclamp control to said collet means; and

valve means directing application of said pneumatic means in response to data provided by said bus means.

13. A dynamic tooling system according to claim 11 further comprising adapter means for attachment to said actuator mechanism as positioned in one of said plurality of apertures, said adapter means providing an end effector intermediate between said one of said plurality of apertures and an adjacent aperture thereto.

14. A dynamic tooling system according to claim 11 wherein said hydraulic intensifier drives said hydraulic means via an internal supply channel in a body of said actuator mechanism, thereby reducing likelihood of leaking as no external plumbing is employed.

12. A dynamic tooling system comprising:

a support table having a plurality of apertures therein;

pneumatic supply for providing pneumatic pressure at a plurality of positions at said support table;

vacuum supply for providing vacuum at a plurality of positions at said support table;

bus means for providing data and electrical supply at a plurality of positions at said support table; and

an actuator mechanism adapted to be removably received within at least one of said plurality of apertures, said actuator mechanism comprising;

an extensible member;

a collet means for clamping said extensible member in a given position;

hydraulic means for effecting clamping and unclamping of said collet means;

a hydraulic intensifier driving said hydraulic means;

pneumatic means for driving said hydraulic intensifier, and providing clamp/unclamp control to said collet means;

valve means directing application of said pneumatic means in response to data provided by said bus means; and

second valve means operative in response to data provided by said bus means for providing pneumatic pressure to an extend side or a retract side of said extensible member as dictated by said data for causing said extensible member to extend or retract.

18. A dynamic tooling system comprising:

a support table having a plurality of receiving positions thereon, ones of said receiving positions including an interface providing a self sealing pneumatic supply and an addressable bus interconnection, said self sealing pneumatic supply self sealing upon removal of an actuator mechanism from said one of said receiving positions; and

an actuator mechanism adapted to be received in at least one of said plurality of receiving positions and for interfacing with said interface and extending and retracting as powered by said pneumatic supply in response to commands received via said addressable bus interconnection.

19. A dynamic tooling system comprising:

a support table having a plurality of receiving positions thereon, ones of said receiving positions including an interface providing a pneumatic supply and an addressable bus interconnection; and

an actuator mechanism adapted to be received in at least one of said plurality of receiving positions and for interfacing with said interface and extending and retracting as powered by said pneumatic supply in response to commands received via said addressable bus interconnection, wherein said actuator mechanism includes a linear transducer.