CA1337862C - Method for transporting vehicle bodies in vehicle body welding line - Google Patents
Method for transporting vehicle bodies in vehicle body welding lineInfo
- Publication number
- CA1337862C CA1337862C CA 610734 CA610734A CA1337862C CA 1337862 C CA1337862 C CA 1337862C CA 610734 CA610734 CA 610734 CA 610734 A CA610734 A CA 610734A CA 1337862 C CA1337862 C CA 1337862C
- Authority
- CA
- Canada
- Prior art keywords
- vehicle body
- station
- assembly station
- welding line
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 38
- 230000000694 effects Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/18—Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Automatic Assembly (AREA)
- Resistance Welding (AREA)
Abstract
The present invention provides a method for transporting a vehicle body in a vehicle body welding line, comprising transporting the vehicle body from a vehicle body assembly station in which the vehicle body for an automobile is assembled, to a discharging station located in front of the vehicle body assembly station by transfer means which is reciprocally movable between the vehicle body assembly station and the discharging station, and transporting the vehicle body from the discharging station to a succeeding welding line, wherein a distance larger than one vehicle body is provided between the vehicle body assembly station and the discharging station, so that the vehicle body is normally transported from the vehicle body assembly station directly to the discharging station, and during line-stopping of the succeeding of the welding line, the advancing movement of the transfer means to the discharging station is stopped in its path to place the vehicle body on standby in an intermediate position between the vehicle body assembly station and the discharging station.
Description
1 33~862 The present invention relates to a method for transporting vehicle bodies in an automobile body welding line.
Vehicle body welding lines are known in which a vehicle body is assembled by welding and attaching a floor, a roof and side panels which form a vehicle body of an automobile at a vehicle body assembly station (hereinafter referred to the assembly station), the resulting vehicle body is transported from the assembly station to the discharging station in front thereof by transfer means moveable between the both stations, and the vehicle body is then transported from the discharging station to an additional welding line where additional welding for the vehicle body is performed.
A large number of welding robots having welding guns carried thereon are disposed in the additional welding line, and line-stopping of the additional welding line for a short time may often occur due to a small problem such as the escape of a pressurized air in the welding gun.
When the line-stopping of the additional welding line occurs the transportation of the vehicle body from the discharging station to the additional welding line is also stopped, making it impossible to transport the vehicle body from the assembly station to the discharging station. Thus, the assembled vehicle body cannot be discharged and remains in the assembly station and hence, assembling of a next vehicle body cannot be performed in the assembly station, causing the stopping of the whole of a vehicle body welding line.
Japanese Unexamined Patent Application Publication No.
63576/88 discloses a vehicle body welding line in which a shunting station for a replacing carriage for welding ~igs is provided at the middle between the assembly station and the discharging station, with a longer distance provided therebetween, so that a replacement carriage may be introduced s 1 337862 from the shunting station to the assembly station to replace welding jigs of a welding machine disposed in the assembly station, and a vehicle body receiver is provided in the shunting station so that the vehicle ~odies may be sequentially S transported from the assembly station to the discharging station through the shunting station. Even with this welding line, when the line-stopping of the additional welding line occurs, the transporting of the vehicle body from each of the discharging station and the shunting station is stopped and as a result, eiection of the assembled vehicle body from the assembly station cannot be perfonmed, causing the stoppi~g of the whole of a vehicle body welding line.
The present invention provides a method for transporting vehicle bodies, wherein even if the line-stopping of the additional welding line for a short t~me occurs, any influence cannot be exerted on the assembly station, thereby increasing the operating efficiency and improving the productivity.
According to the present invention, there is provided a vehicle body welding line, which comprises an assembly station in which a vehicle body for an automobile may be assembled, a discharge station located further down the line from the assembly station, a transfer bar reciprocally movable between the assembly station and the discharge station so as to be capable of moving a vehicle body from the assembly station to the discharge station, the transfer bar being mounted moveably on the movable frame by means of at least one link mechanism comprising a first link pi~otally connected to the movable frame and a second link pivotally connected to the transfer bar so that the transfer bar may be raised and lowered with respect to the movable frame, and means for transporting a vehicle body from the discharge station to a succeeding additional welding line, wherein the assembly station and the discharge station are .~ .
-1 337~3~2 _ spaced from each other by a distance greater than thelength of the vehicle to be welded, and the transfer means is also capable of transferring a vehicle body to an intermediate position between the assembly station and the discharge station.
With this, even if the line-stopping of the additional welding line occurs to cause the stopping of the transportation of a vehicle body from discharging station, the vehicle body assembled in the assembly station is discharged from the assembly station and transported to the intermediate position between the assembly and discharging stations by the transfer means and can be placed on standby, so that the assembling operation for a next vehicle body can be performed in the assembly station.
When the line-stopping of the additional welding line has been released and the vehicle body has been transported from the discharging station, the vehicle body on the standby in the intermediate position is transferred to the discharging station and thereafter, the transporting of the vehicle body from the assembly station to the discharging station is perfonmed synchronously with the transporting of the vehicle body from the discharging station.
The line-stopping of the additional welding line occurring sometimes in the additional welding line is for a short ti~e and in many cases, may be due to recoverable light troubles.
Up to the time when the assembling operation for the next vehicle body on standby in the intermediate position is completed in the assembly station, the line-stopping is released and thus, the whole of a vehicle body welding line can be hardly stopped due to the line-stopping of the additional welding line.
The present invention will be further illustrated by way of the accompanying drawings in which:-~ ig. 1 is a plan view of a section between an assemblystation and a discharging station in a welding line to which the present invention is applied;
~3 ~ 337~2 Fig. 2 is a side view taken along line II-II in Fig. l;
Fig. 3 is a front view of the assembly station during assembling of a vehicle body;
Fig. 4 is an enlarged longitudinal sectional view of an essential portion of transfer means;
Fig. 5 is a laterally cross-sectional view taken along a line V-V in Fig. 4;
Fig. 6 is a side view of the welding line, similar to Fig. 2, during transporting of a replacing carriage; and Fig. 7 is a front view of the assembly station during replacing of ~igs.
Referring to Figs. 1 and 2 , the reference character A
designates an assembly station, and the character B denotes a dlscharging station located in front of the assembly station. An automatic welding machine 2 is disposed at each of opposite sides of the assembly station A and includes a welding ~ig 1 having various welding guns la carried thereon for welding and attaching a floor, a roof and side panels which are components for a vehicle body, as shown in Fig. 3, and a transfer bar 4 as transfer means is mounted on a central track 3 extending forwardly from the assembly station A. Thus, a vehicle body W
assembled by welding and attaching the floor, the roof and the side panels in the assembly station A is transported to the discharging station B by the transfer bar 4 and placed onto a vehicle body receiver 5 disposed in the discharging station, and the vehicle body W is then transported from the discharging station to a succeeding additional welding line by transporting means such as a hanger.
As shown in Figs. 4 and 5, the transfer bar 4 is liftably supported on a movable frame 6 through two sets of front and rear link mechanism 7, 7 each of which comprises a lower link 7a pivotally connected to the moveable frame 6 and an upper link 7b pivotally connected to the transfer bar 4, so that it can be raised and lowered in a horizontal attitude in such a manner to synchronously operate the both link mechanisms 7, 7 by a cylinder 7c through a synchronous rod 7d. The movable frame 6 is moveably supported on a pair of left and right guide rails 3a, 3a on the central track 3 through a plurality of sets of rollers 6a, which are disposed as to be longitudinally spaced one another. A
travelling motor 6c is carried on the movable frame 6 and has a pinion 6b provided on an output shaft and meshing with a rack 3b on the central track 3, so that the movable frame 6 and thus the transfer bar 4 can be longitudinally moved by the motor 6c. When the movable frame 6 has been moved to a retreated position in which it is restrained by a stopper 3c mounted on a portion of the central track 3 closer to the assembly station A, a rear end of the transfer bar 4 projecting rearwardly from the movable frame 6 is inserted into a lower side of the vehicle body W held between the welding jigs 1, 1 in the assembly station A, and the transfer bar 4 is raised to support the vehicle body W by a support member 4a mounted on an upper surface of the rear end of the transfer bar 4. Then, the movable frame 6 is advanced to an advanced position in which it is restrained by a stopper 3d at a front end of the central track 3, and the transfer bar 4 is then lowered, thereby transporting and placing the vehicle body W onto the vehicle body receiver 5 on the discharging station s.
It should be noted that when line-stopping of the additional welding line occurs, the transporting of the vehicle body from the discharging station to the additional welding line is also stopped, so that the vehicle body W which has been earlier transported to the discharging station B remains in the discharging station B, and a next vehicle body cannot be transported to the discharging station s.
" 1 337862 Thereupon, in the present embodiment, the discharging station s is provided at a space larger than one vehicle body in front of the assembly station A, so that when the vehicle body W
has been incapable of being discharged from the discharging station s upon the line-stopping of the additional welding line, the transfer bar 4 is stopped in the course of the advancing movement to the discharging station s, and the vehicle body W
which has been assembled in the assembly station A is transported to and placed on standby in an intermediate position between the assembly station A and the discharging station B, as shown by a phantom line in Fig. 2. ThiS enables the assembling operation for the next vehicle body to be performed in the assembly station A. When the line-stopping of the additional welding line has been released to restart the transporting of the vehicle body from the discharging station B, the vehicle body on standby in the intermediate position is transported to the discharging station B.
In Figures, the reference numeral 8 designates a replacing carriage for the welding jigs 1. Supporting frames 8b are carried on the replacing carriage 8 and have two sets of left and right grasping members 8a mounted thereon in correspondence to the welding machines 2, 2 at the opposite sides of the assembly station A for grasping the welding jig 1 in docking members lb mounted in a projecting manner on the welding jig as shown in Figs. 6 and 7. Therefore the welding jigs 1, 1 may be replaced between the welding machines 2, 2 at the opposite sides when the replacing carriage 8 is transferred into the assembly station A.
The replacing carriage 8 is transported from a shunting station C provided between the assembly and discharging stations A and B to the assembly station A. More specifically disposed on each of opposite sides of the central track 3 are travelling rails 9, 9 for replacing carriage 8, which extend from the shunting station C to the assembly station A, and a pair of replacing rails 10, lO extending laterally at each of opposite sides of the shunting station C. Shunting rails 11 are provided at intersection portions between each of the travelling rails 9 and each of the replacing rails 10 which are located at four corners of the shunting station C and is turnable by a cylinder lla between a longitudinally directed position in which it is aligned with the travelling rail g and a laterally directed position in which it is aligned with the replacing rail 10. with the shunting rails 11 in their laterally directed positions, the replacing carriage 8 can be moved through the replacing rail 10 into and out of the shunting station C, and with the shunting rails 11 in their longitudinally directed positions, the replacing carriage 8 can be moved reciprocally between the shunting station C, and the assembly station A.
The replacing carriage 8 is provided, at four corners on its lower surface, with casters 8c each of which is turnable about a vertical axis to follow turning of the corresponding shunting rail 11. Further, an engage portion 4b is mounted to the rear end of the transfer bar 4 and can be brought sideways into and out of engagement with the front end of the replacing carriage 8. With the transfer bar 4 moved to the front of the shunting station C, the front end of the replacing carriage 8 is brought into engagement with the engage portion 4b by introducing the replacing carriage 8 through the replacing rail 10 into the shunting station C, so that the replacing carriage 8 may be reciprocally moved between the shunting station C and the assembly station A by the transfer bar 4.
In replacing the jigs, the empty replacing carriage 8 is first introduced through the replacing rails 10 at one side into the shunting station C and transported to the assembly station A where the used welding jigs 1, 1 are shifted onto the replacing carriage 8, following which such replacing carriage is moved back to the shunting station C and taken out to the replacing rail 10 at the one side. Then, the replacing carriage 8 carried the welding jigs 1, 1 to be subsequently used thereon is introduced through the replacing rails 10 at the other side and transported to the assembly station A where such welding jigs 1,1 are shifted onto the welding machines 2, 2 following which the replacing carriage 8 is moved back to the shunting station C
and taken out to the replacing rails at the other side, thus completing the replacing operation.
As discussed above, according to the present invention, even if the transporting of the vehicle body from the discharging station is stopped due to the line-stopping of the additional welding line, the assembling operation for a next vehicle body can be performed in the assembly station by transporting the vehicle body assembled in the assembly station to the intermediate position between the assembly and discharging stations and placing it on standby and thus, an influence due to the line stopping occurring sometimes for a short time in the additional welding line cannot be exerted on the assembly station. This leads to effects of an increase in operating efficiency of the entire line and an improvement in productivity.
Vehicle body welding lines are known in which a vehicle body is assembled by welding and attaching a floor, a roof and side panels which form a vehicle body of an automobile at a vehicle body assembly station (hereinafter referred to the assembly station), the resulting vehicle body is transported from the assembly station to the discharging station in front thereof by transfer means moveable between the both stations, and the vehicle body is then transported from the discharging station to an additional welding line where additional welding for the vehicle body is performed.
A large number of welding robots having welding guns carried thereon are disposed in the additional welding line, and line-stopping of the additional welding line for a short time may often occur due to a small problem such as the escape of a pressurized air in the welding gun.
When the line-stopping of the additional welding line occurs the transportation of the vehicle body from the discharging station to the additional welding line is also stopped, making it impossible to transport the vehicle body from the assembly station to the discharging station. Thus, the assembled vehicle body cannot be discharged and remains in the assembly station and hence, assembling of a next vehicle body cannot be performed in the assembly station, causing the stopping of the whole of a vehicle body welding line.
Japanese Unexamined Patent Application Publication No.
63576/88 discloses a vehicle body welding line in which a shunting station for a replacing carriage for welding ~igs is provided at the middle between the assembly station and the discharging station, with a longer distance provided therebetween, so that a replacement carriage may be introduced s 1 337862 from the shunting station to the assembly station to replace welding jigs of a welding machine disposed in the assembly station, and a vehicle body receiver is provided in the shunting station so that the vehicle ~odies may be sequentially S transported from the assembly station to the discharging station through the shunting station. Even with this welding line, when the line-stopping of the additional welding line occurs, the transporting of the vehicle body from each of the discharging station and the shunting station is stopped and as a result, eiection of the assembled vehicle body from the assembly station cannot be perfonmed, causing the stoppi~g of the whole of a vehicle body welding line.
The present invention provides a method for transporting vehicle bodies, wherein even if the line-stopping of the additional welding line for a short t~me occurs, any influence cannot be exerted on the assembly station, thereby increasing the operating efficiency and improving the productivity.
According to the present invention, there is provided a vehicle body welding line, which comprises an assembly station in which a vehicle body for an automobile may be assembled, a discharge station located further down the line from the assembly station, a transfer bar reciprocally movable between the assembly station and the discharge station so as to be capable of moving a vehicle body from the assembly station to the discharge station, the transfer bar being mounted moveably on the movable frame by means of at least one link mechanism comprising a first link pi~otally connected to the movable frame and a second link pivotally connected to the transfer bar so that the transfer bar may be raised and lowered with respect to the movable frame, and means for transporting a vehicle body from the discharge station to a succeeding additional welding line, wherein the assembly station and the discharge station are .~ .
-1 337~3~2 _ spaced from each other by a distance greater than thelength of the vehicle to be welded, and the transfer means is also capable of transferring a vehicle body to an intermediate position between the assembly station and the discharge station.
With this, even if the line-stopping of the additional welding line occurs to cause the stopping of the transportation of a vehicle body from discharging station, the vehicle body assembled in the assembly station is discharged from the assembly station and transported to the intermediate position between the assembly and discharging stations by the transfer means and can be placed on standby, so that the assembling operation for a next vehicle body can be performed in the assembly station.
When the line-stopping of the additional welding line has been released and the vehicle body has been transported from the discharging station, the vehicle body on the standby in the intermediate position is transferred to the discharging station and thereafter, the transporting of the vehicle body from the assembly station to the discharging station is perfonmed synchronously with the transporting of the vehicle body from the discharging station.
The line-stopping of the additional welding line occurring sometimes in the additional welding line is for a short ti~e and in many cases, may be due to recoverable light troubles.
Up to the time when the assembling operation for the next vehicle body on standby in the intermediate position is completed in the assembly station, the line-stopping is released and thus, the whole of a vehicle body welding line can be hardly stopped due to the line-stopping of the additional welding line.
The present invention will be further illustrated by way of the accompanying drawings in which:-~ ig. 1 is a plan view of a section between an assemblystation and a discharging station in a welding line to which the present invention is applied;
~3 ~ 337~2 Fig. 2 is a side view taken along line II-II in Fig. l;
Fig. 3 is a front view of the assembly station during assembling of a vehicle body;
Fig. 4 is an enlarged longitudinal sectional view of an essential portion of transfer means;
Fig. 5 is a laterally cross-sectional view taken along a line V-V in Fig. 4;
Fig. 6 is a side view of the welding line, similar to Fig. 2, during transporting of a replacing carriage; and Fig. 7 is a front view of the assembly station during replacing of ~igs.
Referring to Figs. 1 and 2 , the reference character A
designates an assembly station, and the character B denotes a dlscharging station located in front of the assembly station. An automatic welding machine 2 is disposed at each of opposite sides of the assembly station A and includes a welding ~ig 1 having various welding guns la carried thereon for welding and attaching a floor, a roof and side panels which are components for a vehicle body, as shown in Fig. 3, and a transfer bar 4 as transfer means is mounted on a central track 3 extending forwardly from the assembly station A. Thus, a vehicle body W
assembled by welding and attaching the floor, the roof and the side panels in the assembly station A is transported to the discharging station B by the transfer bar 4 and placed onto a vehicle body receiver 5 disposed in the discharging station, and the vehicle body W is then transported from the discharging station to a succeeding additional welding line by transporting means such as a hanger.
As shown in Figs. 4 and 5, the transfer bar 4 is liftably supported on a movable frame 6 through two sets of front and rear link mechanism 7, 7 each of which comprises a lower link 7a pivotally connected to the moveable frame 6 and an upper link 7b pivotally connected to the transfer bar 4, so that it can be raised and lowered in a horizontal attitude in such a manner to synchronously operate the both link mechanisms 7, 7 by a cylinder 7c through a synchronous rod 7d. The movable frame 6 is moveably supported on a pair of left and right guide rails 3a, 3a on the central track 3 through a plurality of sets of rollers 6a, which are disposed as to be longitudinally spaced one another. A
travelling motor 6c is carried on the movable frame 6 and has a pinion 6b provided on an output shaft and meshing with a rack 3b on the central track 3, so that the movable frame 6 and thus the transfer bar 4 can be longitudinally moved by the motor 6c. When the movable frame 6 has been moved to a retreated position in which it is restrained by a stopper 3c mounted on a portion of the central track 3 closer to the assembly station A, a rear end of the transfer bar 4 projecting rearwardly from the movable frame 6 is inserted into a lower side of the vehicle body W held between the welding jigs 1, 1 in the assembly station A, and the transfer bar 4 is raised to support the vehicle body W by a support member 4a mounted on an upper surface of the rear end of the transfer bar 4. Then, the movable frame 6 is advanced to an advanced position in which it is restrained by a stopper 3d at a front end of the central track 3, and the transfer bar 4 is then lowered, thereby transporting and placing the vehicle body W onto the vehicle body receiver 5 on the discharging station s.
It should be noted that when line-stopping of the additional welding line occurs, the transporting of the vehicle body from the discharging station to the additional welding line is also stopped, so that the vehicle body W which has been earlier transported to the discharging station B remains in the discharging station B, and a next vehicle body cannot be transported to the discharging station s.
" 1 337862 Thereupon, in the present embodiment, the discharging station s is provided at a space larger than one vehicle body in front of the assembly station A, so that when the vehicle body W
has been incapable of being discharged from the discharging station s upon the line-stopping of the additional welding line, the transfer bar 4 is stopped in the course of the advancing movement to the discharging station s, and the vehicle body W
which has been assembled in the assembly station A is transported to and placed on standby in an intermediate position between the assembly station A and the discharging station B, as shown by a phantom line in Fig. 2. ThiS enables the assembling operation for the next vehicle body to be performed in the assembly station A. When the line-stopping of the additional welding line has been released to restart the transporting of the vehicle body from the discharging station B, the vehicle body on standby in the intermediate position is transported to the discharging station B.
In Figures, the reference numeral 8 designates a replacing carriage for the welding jigs 1. Supporting frames 8b are carried on the replacing carriage 8 and have two sets of left and right grasping members 8a mounted thereon in correspondence to the welding machines 2, 2 at the opposite sides of the assembly station A for grasping the welding jig 1 in docking members lb mounted in a projecting manner on the welding jig as shown in Figs. 6 and 7. Therefore the welding jigs 1, 1 may be replaced between the welding machines 2, 2 at the opposite sides when the replacing carriage 8 is transferred into the assembly station A.
The replacing carriage 8 is transported from a shunting station C provided between the assembly and discharging stations A and B to the assembly station A. More specifically disposed on each of opposite sides of the central track 3 are travelling rails 9, 9 for replacing carriage 8, which extend from the shunting station C to the assembly station A, and a pair of replacing rails 10, lO extending laterally at each of opposite sides of the shunting station C. Shunting rails 11 are provided at intersection portions between each of the travelling rails 9 and each of the replacing rails 10 which are located at four corners of the shunting station C and is turnable by a cylinder lla between a longitudinally directed position in which it is aligned with the travelling rail g and a laterally directed position in which it is aligned with the replacing rail 10. with the shunting rails 11 in their laterally directed positions, the replacing carriage 8 can be moved through the replacing rail 10 into and out of the shunting station C, and with the shunting rails 11 in their longitudinally directed positions, the replacing carriage 8 can be moved reciprocally between the shunting station C, and the assembly station A.
The replacing carriage 8 is provided, at four corners on its lower surface, with casters 8c each of which is turnable about a vertical axis to follow turning of the corresponding shunting rail 11. Further, an engage portion 4b is mounted to the rear end of the transfer bar 4 and can be brought sideways into and out of engagement with the front end of the replacing carriage 8. With the transfer bar 4 moved to the front of the shunting station C, the front end of the replacing carriage 8 is brought into engagement with the engage portion 4b by introducing the replacing carriage 8 through the replacing rail 10 into the shunting station C, so that the replacing carriage 8 may be reciprocally moved between the shunting station C and the assembly station A by the transfer bar 4.
In replacing the jigs, the empty replacing carriage 8 is first introduced through the replacing rails 10 at one side into the shunting station C and transported to the assembly station A where the used welding jigs 1, 1 are shifted onto the replacing carriage 8, following which such replacing carriage is moved back to the shunting station C and taken out to the replacing rail 10 at the one side. Then, the replacing carriage 8 carried the welding jigs 1, 1 to be subsequently used thereon is introduced through the replacing rails 10 at the other side and transported to the assembly station A where such welding jigs 1,1 are shifted onto the welding machines 2, 2 following which the replacing carriage 8 is moved back to the shunting station C
and taken out to the replacing rails at the other side, thus completing the replacing operation.
As discussed above, according to the present invention, even if the transporting of the vehicle body from the discharging station is stopped due to the line-stopping of the additional welding line, the assembling operation for a next vehicle body can be performed in the assembly station by transporting the vehicle body assembled in the assembly station to the intermediate position between the assembly and discharging stations and placing it on standby and thus, an influence due to the line stopping occurring sometimes for a short time in the additional welding line cannot be exerted on the assembly station. This leads to effects of an increase in operating efficiency of the entire line and an improvement in productivity.
Claims (2)
1. According to the present invention, there is provided a vehicle body welding line, which comprises an assembly station in which a vehicle body for an automobile may be assembled, a discharge station located further down the line from the assembly station, a transfer bar reciprocally movable between the assembly station and the discharge station so as to be capable of moving a vehicle body from the assembly station to the discharge station, the transfer bar being mounted moveably on the movable frame by means of at least one link mechanism comprising a first link pivotally connected to the movable frame and a second link pivotally connected to the transfer bar so that the transfer bar may be raised and lowered with respect to the movable frame, and means for transporting a vehicle body from the discharge station to a succeeding additional welding line, wherein the assembly station and the discharge station are spaced from each other by a distance greater than the length of the vehicle to be welded, and the transfer means is also capable of transferring a vehicle body to an intermediate position between the assembly station and the discharge station.
2. A vehicle body welding line according to claim 1 wherein the transfer means is mounted on a track extending from the assembly station to the discharge station.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63223442A JPH0275475A (en) | 1988-09-08 | 1988-09-08 | Method for conveying car body of car body welding line |
| JP223442/1988 | 1988-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1337862C true CA1337862C (en) | 1996-01-02 |
Family
ID=16798208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 610734 Expired - Fee Related CA1337862C (en) | 1988-09-08 | 1989-09-08 | Method for transporting vehicle bodies in vehicle body welding line |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0275475A (en) |
| CA (1) | CA1337862C (en) |
| GB (1) | GB2225294B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2817508B2 (en) * | 1992-04-09 | 1998-10-30 | 日産自動車株式会社 | Work assembly device |
| JP3205659B2 (en) * | 1994-02-25 | 2001-09-04 | 本田技研工業株式会社 | Vehicle manufacturing method |
| JP4566564B2 (en) * | 2002-02-20 | 2010-10-20 | デュル システムズ ゲーエムベーハー | Apparatus and method for processing a workpiece, particularly a vehicle chassis |
| CN104668801B (en) * | 2015-02-12 | 2017-01-04 | 浙江杨明斯金属制品有限公司 | A kind of diamond plate logistic car base sealing wire |
| CN111843271B (en) * | 2020-09-23 | 2021-02-19 | 广州松合智能科技有限公司 | Equipment for three-dimensional combined welding of sheet metal parts |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2402665C2 (en) * | 1974-01-21 | 1984-11-08 | Digitron AG, Brügg, Bern | Manufacturing facility with self-propelled transport units |
| FR2578464B1 (en) * | 1985-03-06 | 1987-04-30 | Steelweld France | VEHICLE BODY PARTS ASSEMBLY INSTALLATION |
-
1988
- 1988-09-08 JP JP63223442A patent/JPH0275475A/en active Pending
-
1989
- 1989-09-07 GB GB8920229A patent/GB2225294B/en not_active Expired - Lifetime
- 1989-09-08 CA CA 610734 patent/CA1337862C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2225294B (en) | 1992-05-06 |
| JPH0275475A (en) | 1990-03-15 |
| GB2225294A (en) | 1990-05-30 |
| GB8920229D0 (en) | 1989-10-18 |
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