Video aid system for automatic display of electronic manufacturing drawings

• US 6,600,476 B2
• Filed: 08/23/2001
• Issued: 07/29/2003
• Est. Priority Date: 08/24/2000
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Mathis, Dennis R., Jackson, Dana B.
• Primary Examiner(s): Shankar, Vijay
• Assistant Examiner(s): Patel, Nitin
• Application Number:
  US09/938,054
• Publication Number:
  US 20020051008A1
• Time in Patent Office: 705 Days
• Field of Search: 345/121, 345/123, 345/145, 345/156, 345/2, 700/95, 700/108, 700/111, 700/96, 700/115, 434/118
• US Class Current: 345/156
• CPC Class Codes: G05B 19/41805 characterised by assembly
• CPC Class Codes: G05B 2219/31041 Machine balancing, distribute articles evenly over machines
• CPC Class Codes: G05B 2219/31047 Display image of finished workpiece on screen, show how, where to mount next part
• CPC Class Codes: G05B 2219/31048 Project on workpiece, image of finished workpiece, info or a spot
• CPC Class Codes: G06F 2200/1637 Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer
• CPC Class Codes: G06F 3/002 Specific input/output arrangements not covered by G06F3/01 - G06F3/16 other optical apparatus G02B27/00
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The present invention is a video aid to assembly system and methods of using the system for providing production personnel access to manufacturing drawing information with minimum user intervention. The system scrolls manufacturing drawings automatically as a monitor is moved relative to a workpiece so that the manufacturing drawing corresponds with the identical location on the workpiece. The system also eliminates the need to store, retrieve, and maintain individual hardcopy drawings. In addition, the color capabilities of the system improve detailed part recognition and provide the ability to highlight items that require special attention. Moreover, mark-ups, such as build instructions or modifications, can be electronically overlaid on the drawing without modifying the original assembly drawing.

Claims

1. A visual aid apparatus for providing assembly instructions of a workpiece, comprising:

a computer having a memory device;

a monitor operatively connected to the computer wherein at least one of said monitor and the workpiece are movable relative to the other; and

a position-sensing device operatively connected to the monitor, wherein the position-sensing device is capable of determining the position of the monitor relative to the workpiece and sending the relative position to the computer, the computer being capable of determining assembly instructions according to the relative position and providing the assembly instructions for display on the monitor.

2. A visual aid apparatus according to claim 1, wherein the assembly instructions include a plurality of colors assigned to various components of the workpiece to assist an operator in assembly thereof.

3. A visual aid apparatus according to claim 2, wherein similar components of the workpiece are assigned a similar color.

4. A visual aid apparatus according to claim 1, further comprising an elongated rail extending lengthwise proximate the workpiece.

5. A visual aid apparatus according to claim 4, wherein the monitor is movable along the rail by an operator.

6. A visual aid apparatus according to claim 1, further comprising bins capable of storing at least fasteners for the workpiece.

7. A visual aid apparatus according to claim 1, further comprising hardware controls operable to control the monitor display.

8. A visual aid apparatus according to claim 1, wherein the position-sensing device includes a timing belt and a timing belt pulley that move relative to the monitor such that the position of the monitor can be determined by a corresponding rotational position of the timing belt pulley.

9. A visual aid apparatus according to claim 1, wherein the position-sensing device includes a position sensor selected from the group consisting of a laser range finder, linear transducer, and cable encoder, the position sensor capable of measuring the position of the monitor relative to the workpiece.

10. A visual aid apparatus according to claim 1, wherein the assembly instructions include an original assembly drawing and at least one mark-up instruction that provides at least one revision to the original assembly drawing.

11. A visual aid apparatus according to claim 1, wherein the position-sensing device includes a feedback axis with vertical relative repositioning of the workpiece relative to the monitor.

12. A visual aid apparatus according to claim 1, wherein the position-sensing device includes a feedback axis with rotational relative repositioning of the workpiece relative to the monitor.

13. A visual aid apparatus according to claim 1, further comprising hardware controls that enable an operator to measure distances between features of the workpiece.

14. A visual aid apparatus according to claim 1, wherein the computer is able to detect an end of a first sheet of assembly drawings and automatically displaying a second sheet of assembly drawings such that the first and second sheets of assembly drawings are a single sheet of assembly drawings.

15. A visual aid apparatus according to claim 1, wherein the computer is capable of including other information with the assembly instructions displayed on the monitor, the other information selected from at least one of the group consisting of additional instructions, warnings, and corrections to the assembly instructions.

16. A visual aid apparatus for providing assembly instructions of a workpiece, comprising:

a computer having a memory device;

a video projector operatively connected to the computer wherein at least one of the video projector and the workpiece are movable relative to the other; and

a position-sensing device operatively connected to the monitor, wherein the position-sensing device is capable of determining the positioning of the video projector relative to the workpiece and sending the relative position to the computer, the computer being capable of determining assembly instructions according to the relative position and providing the assembly instructions for projection toward the workpiece by the video projector.

17. A visual aid apparatus according to claim 16, wherein the video projector projects the assembly drawings directly onto the workpiece.

18. A visual aid apparatus according to claim 16, wherein the assembly instructions include a plurality of colors assigned to various components of the workpiece to assist an operator in assembly thereof.

19. A visual aid apparatus according to claim 16, wherein the video projector is movable relative to the workpiece by an operator.

20. A method of providing a visual aid for assembling workpieces, comprising:

determining a position of a monitor positioned relative to a workpiece;

determining a corresponding position of an assembly drawing for the workpiece; and

displaying the corresponding position of the assembly drawing.

21. A method according to claim 20, wherein the monitor position determining step includes determining a rotational position of a timing belt pulley that is operably connected to the monitor.

22. A method according to claim 20, wherein the assembly drawing determining step includes sending the position of the monitor from a position-sensing device to a computer, the computer being capable of selecting corresponding assembly instructions according to the relative position and providing the assembly instructions for display on the monitor.

23. A method according to claim 20, further comprising alerting an operator to resolve ambiguous information present in the assembly drawing when assembling the workpiece.

24. A method according to claim 20, further comprising moving the monitor relative to the workpiece such that the corresponding position of the assembly drawing is displayed while the monitor is moving.

25. A method according to claim 20, further comprising revising the assembly drawing and storing the revisions.

26. A method according to claim 20, wherein the assembly drawing displaying step includes displaying warnings to an operator such that the operator is alerted to ambiguous or important information in the drawings.

27. A method according to claim 20, wherein the displaying step includes displaying the assembly drawing in a plurality of colors.

28. A method according to claim 20, further comprising positioning the workpiece on a conveyor and determining the position of the workpiece relative to the monitor.