Modular manufacturing chain including a vertical lift device and method of operation thereof

• US 20090277754A1
• Filed: 05/09/2008
• Published: 11/12/2009
• Est. Priority Date: 05/09/2008
• Status: Active Grant

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Dietz, Mark E., Spangler, John M.
• Granted Patent: US 7,900,767 B2
• Time in Patent Office: Days
• US Class Current: 198/617
• CPC Class Codes: B05B 13/0264 Overhead conveying means, i.e. the object or other work being suspended from the conveying means; Details thereof, e.g. hanging hooks
• CPC Class Codes: B05C 9/10 the auxiliary operation being performed before the application B05C9/14 takes precedence
• CPC Class Codes: B05C 9/14 the auxiliary operation involving heating or cooling
• CPC Class Codes: B65G 2207/30 Modular constructions
• CPC Class Codes: B65G 49/0477 with lifting means for circuit parts

Abstract

A manufacturing chain includes a building defining a manufacturing area and having a planar floor. A plurality of modular manufacturing stations are positioned in series within the manufacturing area and above the planar floor. An article transportation system includes a plurality of carrier tracks defining a transportation path, having at least one vertical discontinuity, through the plurality of modular manufacturing stations. A first vertical lift device moves a first carrier track, adjacent the vertical discontinuity, in a vertical direction relative to the transportation path.

Claims

1. A manufacturing chain, comprising:

a building defining a manufacturing area and having a planar floor;

a plurality of modular manufacturing stations positioned in series within the manufacturing area and above the planar floor;

an article transportation system including a plurality of carrier tracks defining a transportation path through the modular manufacturing stations, wherein the transportation path includes at least one vertical discontinuity; and

a first vertical lift device for moving a first carrier track in a vertical direction relative to the transportation path, wherein the first carrier track is adjacent the vertical discontinuity.

2. The manufacturing chain of claim 1, further including at least one control system in communication with the first vertical lift device and configured to issue a raise signal and a lower signal.

3. The manufacturing chain of claim 2, wherein the transportation path includes a first transport height vertically spaced from a second transport height, wherein the first vertical lift device is configured to move the first carrier track from the first transport height to the second transport height in response to the raise signal.

4. The manufacturing chain of claim 3, further including a second vertical lift device for moving a second carrier track in a vertical direction relative to the transportation path, wherein the second carrier track is adjacent a second vertical discontinuity of the transportation path.

5. The manufacturing chain of claim 4, wherein the control system is in communication with the second vertical lift device, wherein the second vertical lift device is configured to move the second carrier track from the second transport height to the first transport height in response to the lower signal.

6. The manufacturing chain of claim 5, wherein the control system includes a first station control system in communication with the first vertical lift device and a second station control system in communication with the second vertical lift device, wherein each of the first station control system and the second station control system is configured to issue the raise signal and the lower signal.

7. The manufacturing chain of claim 6, wherein the control system further includes a main control system in communication with at least one of the first and second station control systems and the first and second vertical lift devices, wherein the main control system is configured to independently issue one of the raise signal and the lower signal to the at least one of the first and second station control systems and the first and second vertical lift devices.

8. A manufacturing module, comprising:

a plurality of beams forming a skeleton and defining an entry and an exit of the manufacturing module, wherein the manufacturing module is positioned above a planar floor;

at least one modular manufacturing station disposed between the entry and the exit, wherein the modular manufacturing station includes an article transportation device supported by at least one of the beams and a first vertical lift device;

wherein the article transportation device includes a plurality of carrier tracks defining a transportation path through the modular manufacturing station, wherein the transportation path includes at least one vertical discontinuity;

wherein the first vertical lift device is configured to move a first carrier track in a vertical direction relative to the transportation path, wherein the first carrier track is adjacent the vertical discontinuity; and

a control system in communication with the first vertical lift device and configured to issue a raise signal and a lower signal.

9. The manufacturing module of claim 8, wherein the transportation path includes a first transport height vertically spaced from a second transport height, wherein the first vertical lift device is configured to move the first carrier track from the first transport height to the second transport height in response to one of the raise signal and the lower signal.

10. The manufacturing module of claim 9, further including a second vertical lift device for moving a second carrier track in a vertical direction relative to the transportation path.

11. The manufacturing module of claim 10, wherein the control system includes a first station control system in communication with the first vertical lift device and a second station control system in communication with the second vertical lift device, wherein each of the first station control system and the second station control system is configured to issue the raise signal and the lower signal.

12. The manufacturing module of claim 11, wherein the control system further includes a main control system in communication with at least one of the first and second station control systems and the first and second vertical lift devices, wherein the main control system is configured to independently issue one of the raise signal and the lower signal to the at least one of the first and second station control systems and the first and second vertical lift devices.

13. The manufacturing module of claim 12, further including at least one piece of manufacturing equipment, wherein the second vertical lift device is configured to move the second carrier track relative to the manufacturing equipment.

14. The manufacturing module of claim 8, further including a second modular manufacturing station disposed between the entry and the exit, wherein the second modular manufacturing station includes an article transportation device supported by at least one of the beams and having a plurality of carrier tracks.

15. A method for operating a manufacturing chain having a plurality of modular manufacturing stations, comprising:

locating the modular manufacturing stations above a planar floor of a manufacturing area;

advancing at least one carrier from a beginning of the manufacturing chain to an end of the manufacturing chain along a transportation path; and

wherein the advancing step includes transporting the carrier through a vertical discontinuity of the transportation path by moving a first carrier track of an article transportation system in a vertical direction relative to the transportation path.

16. The method of claim 15, wherein the advancing step further includes moving the first carrier track in the vertical direction using a first vertical lift device.

17. The method of claim 16, wherein the advancing step further includes moving a second carrier track in the vertical direction using a second vertical lift device.

18. The method of claim 17, wherein the advancing step further includes activating at least one of the first vertical lift device and the second vertical lift device in response to one of a raise signal and a lower signal received from at least one of a station control system and a main control system.

19. The method of claim 18, wherein the advancing step further includes raising the second carrier track in response to the raise signal and lowering the second carrier track in response to the lower signal.

20. The method of claim 19, wherein the advancing step further includes moving the second carrier track according to a unique operation pattern including raising and lowering the second carrier track relative to a piece of manufacturing equipment.