Modular Manufacturing Line Including Work Tool Having Work Tool Spray Nozzle And Method Of Operation Therefor

• US 20130026002A1
• Filed: 09/28/2012
• Published: 01/31/2013
• Est. Priority Date: 05/09/2008
• Status: Active Grant

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Spangler, John M.
• Granted Patent: US 8,800,745 B2
• Time in Patent Office: Days
• US Class Current: 198/340
• 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: B05B 13/0452 the conveyed articles being vehicle bodies
• CPC Class Codes: B65G 35/063 the traction element being a rotating bar or tube
• CPC Class Codes: B65G 35/066 the bar or the tube being provided with a helical or annular channel

Abstract

A modular manufacturing line includes first and second modular manufacturing stations. Each station includes a framework defining a manufacturing space, and an overhead friction drive system supported on the framework for moving a suspended article through the manufacturing space. A control system is in communication with each drive system and is configured to simultaneously control a first article at the first station according to one operation pattern and control a second article at the second station according to a different operation pattern. A work tool including a work tool spray nozzle is positioned at the first station and is movable along a floor mounted work tool support track. The first article moves through an article pathway volume that intersects with a work tool pathway volume defined by the work tool movement.

Claims

1. A modular manufacturing line, comprising:

a first modular manufacturing station including a first framework defining a first manufacturing space, and a first overhead friction drive system supported on the first framework and configured to move a first suspended article through the first manufacturing space;

a second modular manufacturing station including a second framework defining a second manufacturing space, and a second overhead friction drive system supported on the second framework and configured to move a second suspended article through the second manufacturing space;

wherein the first and second overhead friction drive systems are operationally aligned to define a transportation path through the modular manufacturing line;

a control system in control communication with the first and second overhead friction drive systems and configured to simultaneously control the first suspended article according to a first operation pattern and control the second suspended article according to a second operation pattern that is different than the first operation pattern; and

a work tool including a work tool spray nozzle operationally positioned at the first modular manufacturing station and movable along a floor mounted work tool support track;

wherein the first suspended article occupies an article pathway volume during movement through the first manufacturing space, wherein the article pathway volume corresponds to an article footprint and a length of the first modular manufacturing station;

wherein the work tool occupies a work tool pathway volume during movement through the first manufacturing space, wherein the work tool pathway volume corresponds to a work tool footprint and a width of the first modular manufacturing station;

wherein the article pathway volume and the work tool pathway volume intersect.

2. The modular manufacturing line of claim 1, wherein the work tool is movable between a first work tool position on a first opposing side of the article pathway volume and a second work tool position on a second opposing side of the article pathway volume.

3. The modular manufacturing line of claim 2, wherein the control system is configured to move the first suspended article between an operational position at least partially within the work tool pathway volume and a work tool transfer position outside of the work tool pathway volume.

4. The modular manufacturing line of claim 3, further including a position tracking device configured to transmit a position signal to the control system indicative of a detection of the operational position, wherein the control system is configured to activate the work tool responsive to the detection of the operational position.

5. The modular manufacturing line of claim 3, further including a position tracking device configured to transmit a position signal to the control system indicative of a detection of the work tool transfer position, wherein the control system is configured to transfer the work tool from the first work tool position to the second work tool position responsive to the detection of the work tool transfer position.

6. The modular manufacturing line of claim 2, further including a carrier supporting the first suspended article and including identification information corresponding to the first suspended article, wherein the carrier communicates the identification information to the work tool.

7. The modular manufacturing line of claim 1, wherein the floor mounted work tool support track is linear and is perpendicular to the transportation path.

8. The modular manufacturing line of claim 1, wherein the floor mounted work tool support track is linear and is oriented at an angle between 0 degrees and 90 degrees relative to the transportation path.

9. The modular manufacturing line of claim 1, wherein the floor mounted work tool support track is curved.

10. The modular manufacturing line of claim 1, wherein the modular manufacturing line includes exactly one work tool including the work tool spray nozzle.

11. A method of operating a modular manufacturing line, wherein the modular manufacturing line includes:

a first modular manufacturing station including a first framework defining a first manufacturing space and supporting a first overhead friction drive system;

a second modular manufacturing station including a second framework defining a second manufacturing space and supporting a second overhead friction drive system;

wherein the first and second overhead friction drive systems are operationally aligned to define a transportation path through the modular manufacturing line;

a control system in control communication with the first and second overhead friction drive systems; and

a work tool including a work tool spray nozzle operationally positioned at the first modular manufacturing station, the method comprising steps of;

supporting a first suspended article from the first overhead friction drive system;

supporting a second suspended article from the second overhead friction drive system;

transmitting first control signals from the control system to the first overhead friction drive system and transmitting second control signals from the control system to the second overhead friction drive system;

simultaneously moving the first suspended article within the first manufacturing space according to a first operation pattern responsive to the first control signals and moving the second suspended article within the second manufacturing space according to a second operation pattern that is different than the first operation pattern responsive to the second control signals;

occupying an article pathway volume with the first suspended article during the step of moving the first suspended article, wherein the article pathway volume corresponds to an article footprint and a length of the first modular manufacturing station; and

moving the work tool along a floor mounted work tool support track and through the article pathway volume.

12. The method of claim 11, further including occupying a work tool pathway volume with the work tool during movement through the first manufacturing space, wherein the work tool pathway volume corresponds to a work tool footprint and a width of the first modular manufacturing station.

13. The method of claim 12, further including:

moving the first suspended article to an operational position at least partially within the work tool pathway volume while the work tool is at a first work tool position on a first opposing side of the article pathway volume; and

activating the work tool while the work tool is at the first work tool position and the first suspended article is at the operational position.

14. The method of claim 13, further including:

transmitting a position signal indicative of a detection of the operational position from a position tracking device to the control system; and

activating the work tool responsive to the detection of the operational position.

15. The method of claim 13, further including:

supporting the first suspended article with a carrier;

communicating identification information corresponding to the first suspended article from the carrier to the work tool; and

moving the work tool spray nozzle according to a work tool program corresponding to the identification information.

16. The method of claim 13, further including:

moving the first suspended article from the operational position to a work tool transfer position outside of the work tool pathway volume; and

transferring the work tool from the first work tool position to a second work tool position on a second opposing side of the article pathway volume while the first suspended article is in the work tool transfer position.

17. The method of claim 16, further including:

transmitting a position signal indicative of a detection of the work tool transfer position from a position tracking device to the control system; and

transferring the work tool responsive to the detection of the work tool transfer position.

18. The method of claim 16, further including:

returning the first suspended article to the operational position while the work tool is at the second work tool position; and

activating the work tool while the work tool is at the second work tool position and the first suspended article is at the operational position.

19. The method of claim 11, wherein moving the work tool includes moving the work tool along a linear path that is perpendicular to the transportation path.

20. The method of claim 11, wherein moving the work tool includes moving the work tool along a curved path.