Portable automatic fastener delivery system

• US 6,688,489 B2
• Filed: 08/16/2001
• Issued: 02/10/2004
• Est. Priority Date: 08/16/2001
• Status: Expired due to Term

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Bloch, Daniel D., Sitton, Kevin J., McCoy, David, Oswald, Ernst A., Fiekert, Edward E., Barr, Roy L.
• Primary Examiner(s): Noland, Kenneth W.
• Application Number:
  US09/931,501
• Publication Number:
  US 20030034355A1
• Time in Patent Office: 908 Days
• Field of Search: 221/3, 221/7, 221/9, 221/15, 221/88, 221/211, 221/124, 221/169, 227/112, 227/233
• US Class Current: 221/88
• CPC Class Codes: B21J 15/32 Devices for inserting or holding rivets in position with or without feeding arrangements
• CPC Class Codes: B23P 19/001 Article feeders for assembling machines screws or nuts being carried by a disposable strip or disc B25B23/045
• CPC Class Codes: B23P 19/003 Escapement mechanisms used therewith

Abstract

A portable fastener delivery system is provided that comprises an automated unloading mechanism that removes fasteners from a fastener storage device and delivers the fasteners through a delivery conduit to a work station. Generally, the portable fastener delivery system is mobile throughout a production facility so that fasteners may be delivered to a plurality of work stations. In operation, a signal is transmitted to a control system requesting a specific fastener configuration, and the control system causes positioning of the unloading mechanism adjacent the fastener storage device. A pneumatic source is then activated to cause the unloading mechanism to remove a fastener from the fastener storage device using a vacuum generator, and once the fastener is removed, the fastener is transported through a delivery conduit to the work station using pressurized air from the pneumatic source through a flexible fastener delivery tube.

Claims

1. An apparatus for delivering fasteners comprising:

a portable platform;

at least one fastener storage device disposed on the portable platform;

at least one unloading mechanism in communication with the fastener storage device;

a control system that regulates delivery of the fasteners; and

at least one delivery conduit in communication with the unloading mechanism,

wherein when a signal is transmitted to the control system requesting at least one fastener, the control system activates the unloading mechanism to retrieve at least one fastener from the fastener storage device, thereby causing the fastener to be transported through the delivery conduit.

2. The apparatus of claim 1, wherein the control system further comprises a pneumatic source that causes the fastener to be removed from the fastener storage device and transported through the delivery conduit.

3. The apparatus of claim 2 further comprising a proximity sensor disposed along the delivery conduit, wherein when the fastener is transported past the proximity sensor, the control system activates the pneumatic source to provide pressurized air to deliver the fastener.

4. The apparatus of claim 3, wherein the delivery conduit further comprises:

a fixed fastener delivery tube disposed within the portable platform; and

a flexible fastener delivery tube in communication with the fixed fastener delivery tube that extends to a work station,

wherein the unloading mechanism delivers the fastener to the fixed fastener delivery tube and the fastener is transported through the fixed fastener delivery tube by gravity, and the fastener is transported through the flexible fastener delivery tube by the pneumatic source after the fastener is transported beyond the proximity sensor.

5. The apparatus of claim 4, wherein the fixed fastener delivery tube and the flexible fastener delivery tube are connected using a fitting comprising flexible prongs, wherein the fitting is secured to the fixed fastener delivery tube, and the flexible fastener delivery tube is inserted between the flexible prongs.

6. The apparatus of claim 5 further comprising an adhesive tape that is wrapped around the fitting to further secure and seal the connection between the fixed fastener delivery tube and the flexible fastener delivery tube.

7. The apparatus of claim 2, wherein the unloading mechanism further comprises:

at least one extractor tool having an upper end and a lower end;

at least one vacuum generator disposed at the upper end of the extractor tool; and

an extractor catcher disposed at the lower end of the extractor tool,

wherein when the control system activates the unloading mechanism, the extractor tool is positioned adjacent the fastener storage device and the pneumatic source activates the vacuum generator to cause a fastener to abut the extractor catcher for removal of the fastener from the fastener storage device.

8. The apparatus of claim 7, wherein the fastener storage device houses a plurality of fasteners and when the pneumatic source activates the vacuum generator, the plurality of fasteners are drawn up into the extractor catcher, and when a top fastener abuts the extractor catcher, the remaining fasteners are dropped back down into the fastener storage device.

9. The apparatus of claim 8, wherein the fastener storage device further comprises at least one fastener cassette that houses at least one fastener storage tube that houses the plurality of fasteners.

10. The apparatus of claim 9, wherein the fastener storage tube is in a coiled configuration.

11. The apparatus of claim 9 further comprising a fastener tube cartridge that houses the fastener storage tube, wherein the fastener tube cartridge is removable.

12. The apparatus of claim 9 further comprising an upper plate and a lower plate that house the fastener storage tube.

13. The apparatus of claim 12, wherein the upper plate and the lower plate are removable.

14. The apparatus of claim 9, wherein the fastener storage device further comprises at least one seal disposed adjacent the fastener storage tube such that when the extractor tool is positioned adjacent the fastener storage device, the extractor catcher abuts the seal, thereby providing a sealed connection between the fastener storage tube and the extractor catcher and preventing the fastener from swinging out of a vertical position.

15. The apparatus of claim 9, wherein the unloading mechanism further comprises an extractor shroud disposed around the extractor catcher.

16. The apparatus of claim 1, wherein the control system further comprises a positioning device that positions the unloading mechanism adjacent the fastener storage device for removal of the fastener and adjacent the delivery conduit for delivery of the fastener.

17. The apparatus of claim 16, wherein the positioning device comprises a linear X-Y positioner.

18. The apparatus of claim 16, wherein the positioning device comprises a vertical axis positioner.

19. The apparatus of claim 1, wherein the control system further comprises a computing device having control software, wherein system parameters are stored in the computing device and are processed by the control software.

20. The apparatus of claim 19, wherein the control software further comprises a database that stores the system parameters.

21. The apparatus of claim 20, wherein the system parameters further comprise portable fastener delivery system parameters and fastener parameters.

22. The apparatus of claim 21, wherein the portable fastener delivery system parameters further comprise fastener cassette parameters.

23. The apparatus of claim 19, wherein the computing device further comprises a touch screen, wherein the request for a fastener is made using the touch screen.

24. The apparatus of claim 19, wherein the computing device is in communication with a computer screen that displays a digital image of an assembly.

25. The apparatus of claim 1, wherein the fastener storage device is removable.

26. The apparatus of claim 25 further comprising a fastener cassette cradle, wherein the fastener storage device is slidably disposed along the fastener cassette cradle.

27. The apparatus of claim 25, wherein the fastener storage device further comprises at least one handle to install, transport, and remove the fastener storage device.

28. The apparatus of claim 1, wherein the fastener storage device further comprises a smart cassette in communication with the control system, wherein the smart cassette maintains current information relating to the fasteners within the fastener storage device.

29. The apparatus of claim 1 further comprising a locating system that communicates proper positioning of the fastener storage device to the control system.

30. The apparatus of claim 29, wherein the locating system further comprises:

a position switch disposed on the portable platform adjacent one end of the fastener storage device; and

a pivoted latch disposed on the portable platform adjacent another end of the fastener storage device,

wherein when the fastener storage device is properly positioned, the position switch is activated and the pivoted latch engages the fastener storage device.

31. The apparatus of claim 30 further comprising a second position switch disposed on the pivoted latch, wherein the second position switch communicates to the control system that the fastener storage device is locked in place.

32. The apparatus of claim 1, wherein the portable platform further comprises a mobile cart.

33. The apparatus of claim 1, wherein the delivery conduit further comprises a drop station, wherein the unloading mechanism transports the fastener from the fastener storage device to the drop station for transportation of the fastener through the delivery conduit.

34. The apparatus of claim 33, wherein the drop station further comprises at least one drop plate, the drop plate comprising at least one chute having a size that corresponds with a specific fastener configuration.

35. The apparatus of claim 34, wherein the chute is tapered.

36. The apparatus of claim 1, wherein the signal is transmitted using an input device.

37. The apparatus of claim 36, wherein the input device is a touch screen.

38. The apparatus of claim 36, wherein the input device is a microphone.

39. The apparatus of claim 36, wherein the input device is an auto identification system.

40. The apparatus of claim 36, wherein the input device is a grip length checker.

41. The apparatus of claim 36, wherein the input device transmits the signal using a hard-wired connection.

42. The apparatus of claim 36, wherein the input device transmits the signal using radio frequency signals.

43. The apparatus of claim 36, wherein the input device transmits the signal using optical signals.

44. The apparatus of claim 36, wherein the input device transmits the signal using voice-activated signals.

45. The apparatus of claim 1 further comprising a protective cover.

46. The apparatus of claim 1, wherein the fastener storage device is stackable.

47. The apparatus of claim 1, wherein the control system further comprises a computing device having control software, wherein system parameters are stored in the computing device and are processed by the control software.

48. The apparatus of claim 47, wherein the control software further comprises a database that stores the system parameters.

49. The apparatus of claim 1, wherein the signal is transmitted using an input device.

50. The apparatus of claim 49, wherein the input device is a touch screen.

51. The apparatus of claim 49, wherein the input device is a microphone.

52. The apparatus of claim 49, wherein the input device is an auto identification system.

53. The apparatus of claim 49, wherein the input device transmits the signal using a hard-wired connection.

54. The apparatus of claim 49, wherein the input device transmits the signal using radio frequency signals.

55. The apparatus of claim 49, wherein the input device transmits the signal using optical signals.

56. The apparatus of claim 49, wherein the input device transmits the signal using voice-activated signals.

57. A method for delivering fasteners comprising the steps of:

(a) transmitting a signal to a control system of a portable fastener delivery system, the signal comprising a request for at least one fastener;

(b) positioning an unloading mechanism adjacent a fastener storage device;

(c) removing at least one fastener from the fastener storage device and securing the fastener within the unloading mechanism;

(d) positioning the unloading mechanism adjacent at least one delivery conduit; and

(e) causing the control system to deliver the fastener through the delivery conduit.

58. The method of claim 57 further comprising the step of activating a pneumatic source to remove the fastener from the fastener storage device and deliver the fastener through the delivery conduit.

59. The method of claim 58 further comprising the steps of:

(a) activating at least one vacuum generator to remove the fastener from the fastener storage device;

(b) holding the fastener within the unloading mechanism with the vacuum generator while the unloading mechanism is being positioned adjacent the delivery conduit;

(c) deactivating the vacuum generator when the unloading mechanism is positioned adjacent the delivery conduit, causing the fastener to drop into the delivery conduit; and

(d) activating the pneumatic source to deliver the fastener using pressurized air.

60. The method of claim 59, wherein a plurality of fasteners stored within the fastener storage device are drawn up when the vacuum generator is activated and are dropped down when a top fastener engages an extractor catcher disposed within unloading mechanism.

61. The method of claim 58 further comprising the steps of

(a) dropping the fastener from the unloading mechanism into a fixed fastener delivery tube, wherein the fastener is transported through the fixed fastener delivery tube by gravity;

(b) sensing the position of the fastener within the fixed fastener delivery tube with a proximity sensor; and

(c) activating the pneumatic source to provide pressurized air to deliver the fastener through a flexible fastener delivery tube once the proximity sensor senses the position of the fastener.

62. An apparatus for delivering fasteners comprising:

a mobile platform;

at least one fastener storage device disposed on the mobile platform;

at least one unloading mechanism in communication with the fastener storage device;

at least one delivery conduit in communication with the unloading mechanism;

a positioning device that positions the unloading mechanism adjacent the fastener storage device for removal of the fastener from the fastener storage device and adjacent the delivery conduit for delivery of the fastener;

a pneumatic source in communication with the unloading mechanism that causes removal of the fastener from the fastener storage device and delivery of the fastener through the delivery conduit; and

a control system that communicates with the positioning device and the pneumatic source to regulate delivery of the fasteners;

wherein when a signal is transmitted to the control system requesting at least one fastener, the control system activates the positioning device and the pneumatic source, thereby causing the fastener to be removed from the fastener storage device and transported through the delivery conduit.

63. The apparatus of claim 62 further comprising a proximity sensor disposed along the delivery conduit, wherein when the fastener is transported beyond the proximity sensor, the control system activates the pneumatic source to provide pressurized air to deliver the fastener.

64. The apparatus of claim 63, wherein the delivery conduit further comprises:

a fixed fastener delivery tube disposed within the portable platform; and

a flexible fastener delivery tube in communication with the fixed fastener delivery tube,

wherein the unloading mechanism delivers the fastener to the fixed fastener delivery tube and the fastener is transported through the fixed fastener delivery tube by gravity, and the fastener is transported through the flexible fastener delivery tube by the pneumatic source after the fastener is transported beyond the proximity sensor.

65. The apparatus of claim 62, wherein the unloading mechanism further comprises:

at least one extractor tool having an upper end and a lower end;

at least one vacuum generator disposed at the upper end of the extractor tool; and

an extractor catcher disposed at the lower end of the extractor tool,

wherein when the control system activates the unloading mechanism, the extractor tool is positioned adjacent the fastener storage device and the pneumatic source activates the vacuum generator to cause a fastener to abut the extractor catcher for removal of the fastener from the fastener storage device.

66. The apparatus of claim 65, wherein the fastener storage device houses a plurality of fasteners and when the pneumatic source activates the vacuum generator, the plurality of fasteners are drawn up into the extractor catcher, and when a top fastener abuts the extractor catcher, the remaining fasteners drop back down into the fastener storage device.

67. The apparatus of claim 66, wherein the fastener storage device further comprises:

at least one fastener storage tube that houses the plurality of fasteners.

68. The apparatus of claim 67, wherein the fastener storage tube is in a coiled configuration.

69. The apparatus of claim 67, wherein the fastener storage device further comprises at least one seal disposed adjacent the fastener storage tube such that when the extractor tool is positioned adjacent the fastener storage device, the extractor catcher abuts the seal, thereby providing a sealed connection between the fastener storage tube and the extractor catcher.

70. The apparatus of claim 62, wherein the positioning device further comprises a linear X-Y positioner.

71. The apparatus of claim 62, wherein the positioning device further comprises a vertical axis positioner.

72. The apparatus of claim 62, wherein the control system further comprises a computing device having control software, wherein system parameters are stored in the computing device and processed by the control software.

73. An apparatus for delivering components comprising:

a portable platform;

at least one component storage device disposed on the portable platform;

at least one unloading mechanism in communication with the component storage device;

a control system that regulates delivery of the components; and

at least one delivery conduit in communication with the unloading mechanism,

wherein when a signal is transmitted to the control system requesting at least one component, the control system activates the unloading mechanism to retrieve at least one component from the component storage device, thereby causing the component to be transported through the delivery conduit.

74. The apparatus of claim 73, wherein the control system further comprises a pneumatic source that causes the component to be removed from the component storage device and transported through the delivery conduit.

75. The apparatus of claim 73, wherein the component is a fastener.