Hand assisted lamination system

• US 6,045,651 A
• Filed: 09/07/1993
• Issued: 04/04/2000
• Est. Priority Date: 09/07/1993
• Status: Expired due to Fees

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Kline, William T., Neilson, George V., Mittelstadt, Robert F.
• Primary Examiner(s): Mayes, Curtis
• Application Number:
  US08/118,368
• Time in Patent Office: 2,401 Days
• Field of Search: 16/350, 16/358, 16/360, 16/556, 16/563, 16/285
• US Class Current: 156/285
• CPC Class Codes: B29C 70/342 using isostatic pressure
• CPC Class Codes: B29C 70/38 Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns application heads for tyres B29D30/28
• CPC Class Codes: B29C 70/541 Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement positioning inserts in moulds B29C33/12; lay-up on a mould B29C70/30
• CPC Class Codes: B29C 70/543 Fixing the position or configuration of fibrous reinforcements before or during moulding for non-woven fabrics D04H3/08

Abstract

A hand assisted lamination apparatus (1) for use in making a laminated composite article, the apparatus (1) including:

(a) a lay-up tool (31) for receiving plies of a composite laminating material;

(b) a support table (34) for supporting the lay-up tool (31);

(c) a vacuum/compressed air system for drawing a vacuum through the support table (34) and for feeding compressed air through the support table (34);

(d) a laser projection system (72) for outlining the location of a ply of the composite laminating material to guide the human operator of the hand assisted lamination apparatus, the laser projection system being capable of projecting a laser beam (30) onto the lay-up tool (31) whereby the laser beam (30) traces the ply outline defined by a data set;

(e) a forming/compaction bag system (35) for forming and compacting a ply of composite laminating material laid on the lay-up tool (31); and

(f) an electronic control system (47) for controlling the vacuum/compressed air system, for controlling the laser projection system (72), and for controlling the forming/compaction bag system (35).

Claims

1. A hand assisted process for making a laminated composite article, said process comprising:

(a) providing a support table;

(b) providing a lay-up tool, and positioning said lay-up tool on said support table;

(c) outlining the location of a ply by projecting a laser beam onto said lay-up tool at the points defined by a data set;

(d) manually laying down a ply of a composite laminating material on said lay-up tool in said location outlined by said laser beam;

(e) forming and compacting said ply on said lay-up tool by using a forming/compaction bag and by drawing a vacuum through said support table; and

(f) repeating steps (c)-(e) until said laminated composite article is complete.

2. The process of claim 1 wherein said laminated composite article has a three-dimensional contoured shape, said lay-up tool has a three-dimensional contoured surface, and said data set is a three-dimensional data set.

3. The process of claim 1 wherein a computer controls said laser beam, said forming/compaction bag, and said drawing of a vacuum.

4. A hand assisted process for making a laminated composite article, said process comprising:

(a) providing a support table having a plurality of reference sensors for providing positional data;

(b) providing a lay-up tool, and positioning said lay-up tool on said support table;

(c) outlining the location of a ply by projecting a laser beam onto said lay-up tool at the points defined by a data set;

(d) manually laying down a ply of a composite laminating material on said lay-up tool in said location outlined by said laser beam;

(e) forming and compacting said ply on said lay-up tool by using a forming/compaction bag and by drawing a vacuum through said support table; and

(f) repeating steps (c)-(e) until said laminated composite article is complete.

5. The process of claim 4 wherein said laminated composite article has a three-dimensional contoured shape, said lay-up tool has a three-dimensional contoured surface, and said data set is a three-dimensional data set.

6. The process of claim 4 wherein a computer controls said laser beam, said forming/compaction bag, and said drawing of a vacuum.

7. A hand assisted process for making a laminated composite article, said process comprising:

(a) providing a support table;

(b) providing a lay-up tool having a plurality of co-operative targets for providing positional data, and positioning said lay-up tool on said support table;

(c) outlining the location of a ply by projecting a laser beam onto said lay-up tool at the points defined by a data set;

(d) manually laying down a ply of a laminating material on said lay-up tool in said location outlined by said laser beam;

(e) forming and compacting said ply on said lay-up tool by using a forming/compaction bag and by drawing a vacuum through said support table; and

(f) repeating steps (c)-(e) until said laminated composite article is complete.

8. The process of claim 7 wherein said laminated composite article has a three-dimensional contoured shape, said lay-up tool has a three-dimensional contoured surface, and said data set is a three-dimensional data set.

9. The process of claim 7 wherein a computer controls said laser beam, said forming/compaction bag, and said drawing of a vacuum.

10. A hand assisted process for making a laminated composite article, said process comprising:

(a) providing a support table being capable of vertical height adjustment under the control of an electronic control system;

(b) providing a lay-up tool, and positioning said lay-up tool on said support table;

(c) manually marking the location of a ply on said lay-up tool by using a hand lay-up template;

(d) laying down a ply of a composite laminating material in said location marked on said lay-up tool in the location indicated by said marking;

(e) forming and compacting said ply on said lay-up tool by using a forming/compaction bag under the control of said electronic control system, by moving said support table vertically under the control of said electronic control system against said compaction bag, and by drawing a vacuum through said support table under the control of said electronic control system; and

(f) repeating steps (c)-(e) until said laminated composite article is complete.

11. The process of claim 10 wherein said laminated composite article has a three-dimensional contoured shape and said lay-up tool has a three-dimensional contoured surface.

12. The process of claim 10 wherein said electronic control system is a programmable logic controller.

13. A hand assisted lamination apparatus for use in making a laminated composite article, said apparatus comprising:

(a) a lay-up tool for receiving plies of a composite laminating material;

(b) a support table for supporting said lay-up tool;

(c) a vacuum/compressed air system for drawing a vacuum through said support table and for feeding compressed air through said support table;

(d) a laser projection system for outlining the location of a ply of said composite laminating material to guide the human operator of said hand assisted lamination apparatus, said laser projection system being capable of projecting a laser beam onto said lay-up tool whereby said laser beam will trace the ply outline defined by a data set;

(e) a forming/compaction bag system for forming and compacting a ply of composite laminating material laid on said lay-up tool; and

(f) an electronic control system for controlling said vacuum/compressed air system, for controlling said laser projection system, and for controlling said forming/compaction bag system.

14. The apparatus of claim 13 wherein said laminated composite article has a three-dimensional contoured shape, said lay-up tool has a three-dimensional contoured surface, and said data set is a three-dimensional data set.

15. The apparatus of claim 13 wherein said electronic control system is a programmed computer control system.

16. A hand assisted lamination apparatus for use in making a laminated composite article, said apparatus comprising:

(a) a lay-up tool for receiving plies of a composite laminating material;

(b) a support table for supporting said lay-up tool, said support table having a plurality of reference sensors located thereon;

(c) a vacuum/compressed air system for drawing a vacuum through said support table and for feeding compressed air through said support table;

(d) a laser projection system for outlining the location of a ply of said composite laminating material to guide the human operator of said hand assisted lamination apparatus, said laser projection system being capable of projecting a laser beam onto said lay-up tool whereby said laser beam will trace the ply outline defined by a data set,

said plurality of reference sensors having the same coordinate system as said data set of said beam tracing said ply outline;

(e) a forming/compaction bag system for forming and compacting a ply of composite laminating material laid on said lay-up tool; and

(f) an electronic control system for controlling said vacuum/compressed air system, for controlling said laser projection system, and for controlling said forming/compaction bag system.

17. The apparatus of claim 16 wherein said laminated composite article has a three-dimensional contoured shape, said lay-up tool has a three-dimensional contoured surface, and said data set is a three-dimensional data set.

18. The apparatus of claim 16 wherein said electronic control system is a programmed computer control system.

19. A hand assisted lamination apparatus for use in making a laminated composite article, said apparatus comprising:

(a) a lay-up tool for receiving plies of a composite laminating material, said lay-up tool having a plurality of co-operative targets located thereon;

(b) a support table for supporting said lay-up tool;

(c) a vacuum/compressed air system for drawing a vacuum through said support table and for feeding compressed air through said support table;

(d) a laser projection system for outlining the location of a ply of said composite laminating material to guide the human operator of said hand assisted lamination apparatus, said laser projection system being capable of projecting a laser beam onto said lay-up tool whereby said laser beam will trace the ply outline defined by a data set,

said plurality of co-operative targets having the same coordinate system as said data set of said laser beam tracing said ply outline;

(e) a forming/compaction bag system for forming and compacting a ply of composite laminating material laid on said lay-up tool; and

(f) an electronic control system for controlling said vacuum/compressed air system, for controlling said laser projection system, and for controlling said forming/compaction bag system.

20. The apparatus of claim 19 wherein said laminated composite article has a three-dimensional contoured shape, said lay-up tool has a three-dimensional contoured surface, and said data set is a three-dimensional data set.

21. The apparatus of claim 19 wherein said electronic control system is a pro-grammed computer control system.

22. A hand assisted lamination apparatus for use in making a laminated composite article, said apparatus comprising:

(a) a lay-up tool for receiving plies of a composite laminating material;

(b) a support table for supporting said lay-up tool, said support table being capable of vertical height adjustment;

(c) a vacuum/compressed air system for drawing a vacuum through said support table and for feeding compressed air through said support table;

(d) a forming/compaction bag system for forming and compacting a ply of composite laminating material laid on said lay-up tool;

(e) an electronic control system for controlling said support table, for controlling said vacuum/compressed air system, and for controlling said forming/compaction bag system; and

(f) a visual display screen for displaying the status of machine operations so that the human operator may monitor said machine operations and for displaying operational instructions to guide the human operator of said hand assisted lamination apparatus.

23. The apparatus of claim 22 wherein said laminated composite article has a three-dimensional contoured shape and said lay-up tool has a three-dimensional contoured surface.

24. The apparatus of claim 22 wherein said electronic control system is a programmable logic controller.