EP0346816A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for assembling vehicle body
Assignee: Nissan Motor Co Ltd
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Filing: 1989-06-12
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Granted: —
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Expires: 2009-06-12
Abstract
Abstract A flexible manufacturing system for assembling various types of vehicle bodies is disclosed. The system includes a work supply means by which corresponding works for the various types of vehicle bodies are supplied, a main body assembling device which includes a plurality of locating and welding robots of numerical control type and control means for controlling operation of the robots in a programmed manner so that the various types of vehicle bodies are continuously assembled in order. A method for controlling the system comprises (a) sensing a trouble which would occur in any of the robots, (b) stopping the robot in trouble, and (c) controlling operation of the other robots in such a manner that at least one of the types of vehicle bodies is assembled by the remaining robots.
Inventors
- 👤 Kazuhiko Yazaki
- 👤 Hiroyuki Ono
- 👤 Kaoru Okuyama
- 👤 Hiroyuki Nissan Zama-Ryou A-304 Kanno
- 👤 Hiroshi Sasaoka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 22:31
CPC Classifications
B; B62; B62D; B62D65/00; B62D65/02; B23; B23K; B23K31/00; B23K37/00; B23K37/02; B23K37/0211; B23K37/0229; B23K37/04; B23K37/047; B25; B25J; B25J9/00; B25J9/0084; B25J9/02; B25J9/023; B25J9/026; G; G05; G05B; G05B19/00; G05B19/02; G05B19/418; G05B19/41835; G05B19/4184; B23P; B23P2700/00; B23P2700/50; G05B2219/00; G05B2219/30; G05B2219/31; G05B2219/31355; G05B2219/31363; G05B2219/31364; Y; Y02; Y02P; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
133 words
In a flexible manifacturing system for assembling various types of vehicle bodies, said system including a work supply means by which corresponding works for the various types of vehicle bodies are supplied, a main body assembling device which includes a plurality of locating and welding robots of numerical control type and control means for controlling operation of said robots in a programmed manner so that the various types of vehicle bodies are continuously assembled in order, a method for controlling said flexible manifacturing system, comprising by steps: (a) sensing a trouble which would occur in any of said robots; (b) stopping said robot in trouble; and (c) controlling operation of the other robots in such a manner that at least one of the types of vehicle bodies is assembled by the remaining robots.
Claim 2
Dependent Claim
133 words
In a flexible manifacturing system for assembling various types of vehicle bodies, said system including a work supply means by which corresponding works for the various types of vehicle bodies are supplied, a main body assembling device which includes a plurality of locating and welding robots of numerical control type and control means for controlling operation of said robots in a programmed manner so that the various types of vehicle bodies are continuously assembled in order, a method for controlling said flexible manifacturing system, comprising by steps: (a) sensing a trouble which would occur in any of said robots; (b) stopping said robot in trouble; and (c) controlling operation of the other robots in such a manner that at least one of the types of vehicle bodies is assembled by the remaining robots.
Claim 3
Dependent Claim
30 words
A method as claimed in Claim 1, further comprising (e) returning the operation of the robots to their originally programmed modes when repairing of said robot in trouble is achieved.
Claim 4
Dependent Claim
27 words
A method as claimed in Claim 2, in which when a trouble of the robot is sensed, a predetermined program for controlling the other robots is executed.
Claim 5
Dependent Claim
75 words
A vehicle body assembling device comprising: a conveyer for conveying a work along a given way; a frame structure mounted over said conveyer; a plurality of locating robots; a plurality of welding robots; and a rail structure which is mounted on said frame structure and extends in parallel with said given way, wherein at least one of said locating robots and at least one of said welding robots are slidably guided by said rail structure.
Claim 6
Dependent Claim
75 words
A vehicle body assembling device comprising: a conveyer for conveying a work along a given way; a frame structure mounted over said conveyer; a plurality of locating robots; a plurality of welding robots; and a rail structure which is mounted on said frame structure and extends in parallel with said given way, wherein at least one of said locating robots and at least one of said welding robots are slidably guided by said rail structure.
Claim 7
Dependent Claim
22 words
A vehicle body assembling device as claimed in Claim 4, in which said rail structure is arranged outside of said frame structure.
Claim 8
Dependent Claim
20 words
A vehicle body assembling device as claimed in Claim 5, in which said rail structure comprises two first parallel rails.
Claim 9
Dependent Claim
35 words
A vehicle body assembling device as claimed in Claim 6, in which each of said locating and welding robots is equipped at its base portion with sliders which are operatively engaged with said two rails.
Claim 10
Dependent Claim
31 words
A vehicle body assembling device as claimed in Claim 7, further comprising first electrically driving means for moving each of said locating and welding robots along said rails upon energization thereof.
Claim 11
Dependent Claim
42 words
A vehicle body assembling device as claimed in Claim 8, in which an axially movable arm is slidably supported by said base portion of said robot, said arm being arranged to move toward and away from the interior of said frame structure.
Claim 12
Dependent Claim
53 words
A vehicle body assembling device as claimed in Claim 9, further comprising: two second parallel rails mounted to said axially movable arm, said second parallel rails extending perpendicular to said first parallel rails; and sliders held by said base portion of the robot, said sliders being operatively engaged with said second parallel rails.
Claim 13
Dependent Claim
30 words
A vehicle body assembling device as claimed in Claim 10, further comprising second electrically driving means for moving said axially movable arm along said second parallel rails upon energization thereof.
Claim 14
Dependent Claim
32 words
A vehicle body assembling as claimed in Claim 11, in which an inward end of said axially movable arm is equipped with a vertically movable member which is equipped with a manipulator.
Claim 15
Dependent Claim
56 words
A vehicle body assembling device as claimed in Claim 12, further comprising: two third parallel rails secured to said inward end of said axially movable arm, said third parallel rails being perpendicular to both said first and second parallel rails; and sliders held by said vertically movable member and operatively engaged with said third parallel rails.
Claim 16
Dependent Claim
29 words
A vehicle body assembling device as claimed in Claim 13, further comprising third electrically driving means for moving said vertically movable member along said third rails upon energization thereof.
Claim 17
Dependent Claim
22 words
A vehicle body assembling device as claimed in Claim 14, in which said vertically movable member is arranged within said frame structure.
Claim 18
Dependent Claim
42 words
A vehicle body assembling device as claimed in Claim 15, in which each of said first, second and third electrically driving means comprises: a servomotor; a threaded shaft rotated by said servomotor; and a ball nut operatively engaged with said threaded shaft.
Claim 19
Dependent Claim
20 words
A vehicle body assembling device as claimed in Claim 4, in which said frame structure comprises two hollow metal members.
Claim 20
Dependent Claim
90 words
A vehicle assembling device as claimed in Claim 17, further comprising: an electric source for generating power to actuate a welding gun; control means for controlling movements of said locating and welding robots; a plurality of wires connecting said control means with electrically actuator means of said locating and welding robots; and a primary cable connecting said electric source to said welding gun, wherein said plurality of wires are installed in one of said two hollow metal members and said primary cable is installed in the other hollow metal member.
Claim 21
Dependent Claim
33 words
A vehicle body assembling device as claimed in Claim 13, in which said first, second and third parallel rails are each covered with a cover member to be protected from spattering of welding.
References Cited (Backward Citations)
No citation records indexed.
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