JP3053240B2 - Panel manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a panel constituting a housing unit. For example, the present invention can be used for an apparatus for manufacturing a wife panel composed of two pillars and two short side beams connecting between upper end portions and lower end portions of these two pillars.

[0002]

BACKGROUND ART Housing units that make up unit housing are:
Place the ceiling and floor panels horizontally, up and down,
A pair of wife panels are arranged between the ceiling panel and the floor panel, and they are connected to form a box shape. Usually, the wife panel consists of two square tubular columns,
It is composed of two short-sided beams having a U-shaped cross section that connect between the upper end and the lower end of these two columns.

[0003]

In manufacturing a wife panel, two pillars are arranged parallel to each other at a predetermined interval, and a U-shaped cross section is provided between the upper end and the lower end of the two pillars. Are arranged in a predetermined positional relationship with respect to the column, more specifically, in a state where the outer surface of the column coincides with the web surface of the beam, the entire U-shaped end of each beam is It is necessary to manufacture a rectangular frame-shaped end panel by welding the periphery to a pillar.

[0004] At this time, if all of these operations are manually performed by the operator, the burden on the operator is large,
In addition, since it is inefficient, automation of welding work by a welding robot or the like is required. However, this requires that a beam be temporarily attached between the upper end and the lower end of the two columns to form a rectangular frame, and that the frame be transported to the welding robot position. Therefore, it takes time and effort to carry it.

[0005] Further, in the temporary attachment of the frame, there is a case where it is necessary to temporarily attach the frame with the welding surface facing downward due to the positioning relationship between the column and the beam. In such a case,
Even if the frame is carried into the welding robot in the same posture,
Since the welding surface cannot be welded with the welding head facing downward, the frame needs to be turned upside down. However, there is a problem that a great deal of time and labor is required to invert the frame.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a panel manufacturing apparatus which solves the conventional disadvantages as described above, reduces the burden on an operator as much as possible, and enables efficient and continuous production of panels. It is in.

[0007]

Therefore, in the panel manufacturing apparatus of the present invention, two columns located on both sides in the transport direction are provided.
A transport device for circulating and transporting a bogie for forming a rectangular frame by temporarily attaching two beams located between the ends of the two pillars with the welding surface thereof facing downward; A frame which is lifted by lifting the frame on the carriage transported by the transport device, turning the front and back, and turning 90 degrees in the horizontal direction.
A chain conveyer for transporting the frame body turned and turned by the panel reversing and turning apparatus in a horizontal posture in which the two columns are positioned back and forth and while supporting the two columns; and A welding robot installed on both sides of the chain conveyor for welding a joint between the two columns and the two beams.

[0008]

First, two columns are arranged parallel to each other at a predetermined interval on a carriage being conveyed by a conveyance device, and a beam is arranged between each end of the two columns. In (2), the end of each beam is temporarily attached to a pillar to form a rectangular frame. Therefore, since the frame can be formed on the carriage during transportation, labor and time for transportation can be saved.
At this time, the two pillars are arranged on both sides of the transfer device in the transfer direction.
So that the column is fed in the longitudinal direction,
It can be loaded on top, and the loading of pillars is easy. Frame on the dolly that has been conveyed by the conveying apparatus, the panel anti
After being lifted by the turning and turning device and turned upside down,
Conveyed on a chain conveyor. In other words, since the welding surface is turned upside down and then conveyed by the chain conveyor, when the beam ends are then welded by the welding robot, the welding is performed with the welding head facing down. be able to. Moreover, the panel reversing swing device
Frame that is lifted up by turning
And the two pillars located before and after the chain conveyor
Transported while being supported by the
Carry with the welded parts protruding from both sides of the chain conveyor.
During the transport, other processes such as melting
Rust prevention treatment and the like after contact can be easily performed. Therefore, the burden on the operator can be reduced as much as possible, and the panels can be efficiently and continuously produced.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a housing unit 5 (see FIGS. 2 and 3).
FIG. 2 is a block diagram showing the production process of FIG.
FIG. 3 is an assembled perspective view of the housing unit 5. The housing unit 5 is assembled in a box shape by a ceiling panel 1, a floor panel 2, and two wife panels 3.

The ceiling panel 1 carries the long-side beams 11 produced on the long-side beam production line 21 into the ceiling panel production line 22, where the two long-side beams 11 are produced.
Are arranged in parallel, the bezel 12 is connected therebetween, and the ceiling panel 13 is attached.

The floor panel 2 carries the long side beams 11 produced on the long side beam production line 21 into the floor panel production line 23, and the two long side beams 11 are arranged in parallel on this production line 23. It is made by connecting joists (not shown) between them and attaching the floor panel 14.

The wife panel 3 carries the pillars 15 produced on the pillar production line 24 and the short side beams 16 produced on the short side beam production line 25 into the wife panel production line 26, respectively.
In this production line 26, the two columns 15 are arranged in parallel, and the short side beams 16 are connected between both ends thereof. A connection 17 is attached to each end of each pillar 15 in a direction perpendicular to the short side beam 16.

The ceiling panel 1, the floor panel 2 and the wife panel 3 are carried into the total assembly line 27, respectively.
In this total assembly line 27, the wife panel 3 is arranged on both sides of the ceiling panel 1 and the floor panel 2 which are arranged vertically in parallel, and each connection 17 is formed by each long side beam 11 of the ceiling panel 1 and the floor panel 2. The housing unit 5 (see FIG. 3) is assembled by being welded to both ends of the housing unit 5 in a fitted state.

The housing unit 5 is sent to an outer wall panel mounting line 28, where the outer wall panel is mounted at a predetermined position on the outer surface.
Then, a staircase unit, a kitchen unit, a bath unit, and the like are attached to a predetermined position in the interior, thereby completing the process. A plurality of completed housing units 5 are transported to a building site by truck or the like, and a unit house can be built by combining these units.

FIG. 4 is a block diagram showing detailed steps of the wife panel production line 26. In the production line 26,
A first transport device 41 for circulating and transporting a bogie 57 for temporarily attaching the two columns 15 and the short-side beams 16 to form a rectangular frame 18; and a frame 18 on the bogie 57. A panel reversing / rotating device 42 for lifting and reversing the front / back and turning 90 degrees in the horizontal direction, and the frame 18 thus turned and rotated in a horizontal posture in which the two pillars 15 are located in front and back, and the two A second transfer device 43 for transferring the column 15 while supporting it, and two welding robots 44A and 44B installed on both sides of the second transfer device 43 for welding a joint between the column 15 and the short side beam 16 And a third transporting device 45 that transports the frame 18 after welding while stocking the frame 18 into the total assembly line 27.

FIG. 5 shows the first transfer device 41. The transport device 41 includes lifters 51 and 52 that can be moved up and down at the front and rear portions in the transport direction, and the lifters 51 and 52.
Lifter conveyors 53 and 54 provided above, and a transport conveyor 55 for connecting the front and rear lifter conveyors 53 and 54 with the lifters 51 and 52 raised.
A return conveyor 56 that connects the front and rear lifter conveyors 53 and 54 with the lifters 51 and 52 lowered.
After transporting the plurality of carts 57 from the lifter conveyor 53 to the lifter conveyor 54 via the transport conveyor 55, the carriages 57 are circulated and transported to the lifter conveyor 53 via the return conveyor 56.

FIGS. 6 to 9 show the panel reversing turning device 42.
Is shown. As shown in FIG. 6, the panel reversing and turning device 42 includes a structure 61 that is framed on both sides of the first and second transfer devices 41 and 43 so as to straddle them.
A support frame 63 is supported on the upper part of the structure 61 through two rails 62A and 62B so as to be able to travel in a substantially horizontal direction and in a direction parallel to the transfer direction of the first and second transfer devices 41 and 43. Have been. The hoist 64 is supported by the support frame 63 so as to be able to travel over a predetermined range in the longitudinal direction of the support frame 63.

The hoist 64 is provided with a motor 66 capable of automatically winding and rewinding the lifting chain 65. A guide rail 67 is supported by the lifting chain 65 so as to be substantially horizontal and pivotable in the horizontal direction. Guide rail 67
The upper end portions of the pair of support arms 68A, 68B are supported so as to be able to travel, respectively, and an interval adjusting mechanism 69 that allows the pair of support arms 68A, 68B to travel at equal distances in directions approaching and separating from each other. Is provided.

The interval adjusting mechanism 69 includes a pair of sprockets 70A provided at both ends of the guide rail 67.
An endless chain 71 provided so as to be able to rotate in a direction parallel to the longitudinal direction of the guide rail 67 via a guide rail 70B.
A connecting member 72A for connecting the one support arm 68A to one side (upper side) of the chain 71; and the other support arm 68 to the other side (lower side) of the chain 71.
And a connecting member 72B for connecting B. Therefore, when the chain 71 is driven to rotate, the pair of support arms 68A and 68B are moved in directions approaching and separating from each other, so that the interval therebetween is adjusted.

At the lower end of each of the support arms 68A, 68B, a rotating shaft 73 is provided so as to protrude on the same horizontal axis and toward the inner surface, and through the rotating shaft 73, the reversing arms 74A, 74B. Are supported rotatably (see FIG. 7). Each support arm 68
A, 68B and each reversing arm 74A, 74B,
A lock mechanism 75 for locking the reversing arms 74A and 74B in a substantially horizontal state is provided.

As shown in FIG. 8, the lock mechanism 75 includes engagement cylinders 76, 77 provided on both sides of the rotation shaft 73 of the reversing arms 74A, 74B, and the support arms 68, respectively.
A, 78B, a bracket 78 protruding in the horizontal direction from one side of the lower end, and one end of the bracket 78 is provided so as to be able to advance and retreat in the axial direction of the rotary shaft 73, Engagement pin 7 selectively engaged with 77
9.

At both ends of each of the reversing arms 74A and 74B, there are provided engaging portions 81 for engaging with the frame 18 temporarily attached in a rectangular shape. As shown in FIG. 9, each engaging portion 81 includes a bracket 82 projecting from both ends of each of the reversing arms 74A and 74B at right angles to the longitudinal direction thereof.
A guide cylinder 83 integrally fixed to the end of each bracket 82, and an engaging pin 84 provided on the guide cylinder 83 so as to be able to advance and retreat in the axial direction of the rotating shaft 73 and engaging with a hole of the connection 17. It is composed of

FIGS. 10 to 14 show the second transfer device 43.
The detailed structure of is shown. FIG.
As shown in FIG. 12, side frame frames 91A and 91B are provided on both sides.
Is provided. Each side frame 91A, 9
1B, chain conveyors 93A and 93B are respectively connected to the side frame frames 91 via a plurality of sprockets.
Guide frames 94A and 94B are provided along the longitudinal direction of the chain conveyors A and 91B and support the upper transport side of each of the chain conveyors 93A and 93B from below.

At predetermined intervals between the guide frames 94A and 94B and the side frame frames 91A and 91B, the conveying surfaces of the chain conveyors 93A and 93B are vertically moved up and down via the guide frames 94A and 94B. An elevating mechanism 95 is provided. As shown in FIGS. 13 and 14, the elevating mechanism 95 is fixed to a predetermined position on the machine body 92 side, and has an inclined table 96 having an inclined surface whose upper surface gradually increases as it goes in the transport direction, and each of the guide frames 94A, 94B. A roller 98 provided at a predetermined position on the side of the vehicle via a bracket 97 and mounted on the inclined surface of the inclined table 96, a main body is connected to the body 92 side, and the tip of a piston rod is connected to the guide frames 94A, 94B. And a cylinder 99 connected to the side.

Further, between the side frame frames 91A and 91B, on both sides on the positioning line L connecting the centers of the welding robots 44A and 44B on both sides, and on both sides of the positioning line L in the front and rear positions in the transport direction. Receiving members 101A, 101B, 1B that support the column 15 of the frame 18 in a state of being separated from the conveying surface when the conveying surface of the chain conveyors 93A, 93B is lowered by the elevating mechanism 95.
02A, 102B, 103A and 103B are provided respectively. Here, these receiving members 101A-110
3B constitutes a first positioning mechanism for positioning the frame 18 in the vertical direction.

The receiving members 101B, 102B, 1103 are provided outside the one side frame 91B.
At positions facing B, stoppers 104, 105, and 106 for restricting one side of the frame body 18 in the width direction are provided. Outside the other side frame 91A,
At the front and rear positions in the transport direction with the positioning line L interposed therebetween, the frame 1
Pushers 107 and 108 are provided for pressing the stopper 8 toward the stoppers 104, 105 and 106, respectively. Here, the stoppers 104, 105, 106 and the pushers 107, 108 constitute a second positioning mechanism 109 for positioning the frame 18 in a width direction orthogonal to the transport direction.

Also, the receiving members 101A, 10 on both sides are provided.
Between 1B, third positioning mechanisms 110A and 110B for positioning the frame body 18 in the transport direction are provided. The third positioning mechanisms 110A and 110B are provided with a stopper 111 provided so as to be able to move up and down in a vertical direction at a position slightly forward of the positioning line L, a cylinder 113 for making the stopper 111 come and go, and a swingable rocker. It comprises a clamp piece 112 for pressing the column 15 positioned by the positioning line L against the stopper 111, and a cylinder 114 for swinging the clamp piece 112.

Next, the working procedure in the wife panel production line 26 will be described. First, the two columns 15 produced by the column production line 24 and the two short side beams 16 produced by the short side beam production line 25 are transferred to the first transfer device 4.
It is carried into the carriage 57 on the first lifter 51 and arranged as shown in FIG. That is, the two pillars 15 are arranged on the horizontal upper surface of the bogie 57 with the surface on which the connection 17 is attached facing upward and at a predetermined distance from each other in parallel with the transport direction. A short side beam 16 having a U-shaped cross section is disposed between the ends with the U-shaped groove facing upward.

By the time the carriage 57 advances from the lifter conveyor 53 to the transfer conveyor 55 and transfers to the lifter conveyor 54, several portions of the U-shaped end of each short-side beam 16 are placed on the pillar 15.
To form a rectangular frame 18. Therefore, with reference to the upper surface of the bogie 57, one outer surface of the column 15 and the web surface of the short side beam 16 are positioned so as to coincide with each other, and in this state, the column 15 and the beam 16 are connected. Temporary attachment can be accurately performed in a predetermined positional relationship. By the time the tacking work is completed and the truck 57 is transferred to the lifter conveyor 54, the frame body 18 is lifted up by the panel reversing and turning device 42, turned over, and turned 90 degrees in the horizontal direction (FIG. 15).

For this, the support frame 63 is connected to the rail 62
A and 62B are made to run and it is located on the trolley 57. Here, the motor 66 of the hoist 64 is driven to rewind the lifting chain 65, and the pair of reversing arms 74A, 74
After matching B with the height position of the frame 18 on the trolley 57,
The interval between the pair of reversing arms 74A and 74B is made to correspond to the width of the frame 18 by the interval adjusting mechanism 69.

Thereafter, the engaging pins 84 of the engaging portions 81 provided at both ends of each of the reversing arms 74A and 74B are pushed into the holes of the opening 17 of the frame 18 and then the hoist 64
Is driven to wind up the lifting chain 65.
Then, the frame 18 is lifted from the carriage 57. Thereafter, the support frame 63 is moved forward by a predetermined distance along the rails 62A and 62B and stopped. Here, the engagement pin 79 of the lock mechanism 75 is connected to one of the engagement cylinders 76 and 7.
7 and then pull out both reversing arms 74A and 74B
When rotated by 80 degrees, the front and back of the frame 18 are reversed. At this time, since the two reversing arms 74A and 74B rotate about the rotation shaft 73, the frame body 18 can be reversed with a relatively light force.

Thereafter, when the reversing arms 74A, 74B return to the horizontal position, the engaging pin 79 of the lock mechanism 75 is moved to the engaging cylinder 7 of one of the reversing arms 74A, 74B.
6 and 77 to lock the reversing arms 74A and 74B in a horizontal state.
7 is turned 90 degrees in the horizontal direction to turn the frame 18. At this time, since the reversing arms 74A and 74B are locked in a horizontal state, the turning in the horizontal direction is safe. Thereafter, the support frame 63 is moved forward along the rails 62A, 62B to move the frame 18 to the second transport device 43.
Carry in.

The frame 18 carried on the second conveyor 42 is conveyed by driving the chain conveyors 93A and 93B on both sides in a horizontal posture in which the two pillars 15 are located in front and rear. Eventually, when the axis of the front end column 15 reaches the positioning line L connecting the centers of the welding robots 44A and 44B, the driving of the chain conveyors 93A and 93B is stopped (see FIG. 15). Here, when the cylinder 99 of the elevating mechanism 95 is driven, the roller 98 descends along the inclined surface of the inclined table 96, so that the guide frames 94A, 9
4B is lowered.

Thus, the chain conveyors 93 on both sides are provided.
When the transport surface of A, 93B is lowered, the frame 18 supported on the transport surface is also lowered, and the columns 15 before and after the frame 18 are supported by the receiving members 101A, 101B, 102A, 102B. That is, the frame 18 is connected to the chain conveyor 9.
3A and 93B are separated from the conveying surface, and the receiving members 101A, 101B, 102A and 102B perform vertical positioning.

Here, when the pusher 107 of the second positioning mechanism 109 is driven, the frame body 18 is regulated by the stoppers 104 and 105 while moving in the width direction. That is, positioning in the width direction is performed. After the stopper 111 of the third positioning mechanism 110 is projected, the clamp piece 1
When the clamp 12 is operated, the pillar 15 in front of the frame 18 is moved.
Is positioned in the transport direction in a state where is held between the stopper 111 and the clamp piece 112.

After the positioning in the vertical direction, the width direction, and the transport direction is performed in this manner, as shown in FIG. 12, the entire welding end face of the column 15 and the short side beam 16 is welded by the welding robots 44A and 44B on both sides. Weld the circumference continuously. First,
After the welding heads of the welding robots 44A and 44B are positioned inside, welding is performed while moving upward, then welding is performed while moving the upper wall outward, and finally welding is performed while moving downward. . Thereby, short side beam 1
6, the entire periphery of the U-shaped end face can be continuously welded from the outside thereof, with the welding head always facing downward.

Thereafter, the positioning mechanisms 109 and 110 are released, and the guide frame 9 is moved by the elevating mechanism 95.
After raising 4A and 94B, the chain conveyors 93A and 93B on both sides are driven. Thus, when the axis of the column 15 on the rear end side of the frame 18 reaches the positioning line L connecting the centers of the welding robots 44A and 44B, the driving of the chain conveyors 93A and 93B is stopped. Here, in the same manner as described above, after positioning in the vertical direction, the width direction, and the transport direction, the welding robots 44A and 44B on both sides are positioned.
Thereby, the entire periphery of the joint end face between the column 15 and the short side beam 16 is continuously welded. In this way, the frame body 18 on which all welding has been completed is carried by the third carrying device 45, and is carried into the total assembly line 27 therefrom.

Therefore, according to this embodiment, in the wife panel production line 26, the two columns 15 and the two short side beams 16 are provided.
And a panel reversing turn for lifting the frame 18 to turn it upside down and to turn horizontally in a first transfer device 41 for circulating and transporting a carriage 57 for temporarily forming the rectangular frame 18. A second transporting device 43 for transporting the frame 18 in a horizontal position with the two columns 15 positioned back and forth and supporting the two columns 15, and the column 15 of the frame 18. Since two welding robots 44A and 44B for welding the joint with the short side beam 16 are provided, the two pillars 15 and 2 are provided.
Since the welding from the temporary welding with the short side beam 16 of the book to the entire circumference welding can be continuously performed in the flow work, the burden on the worker is reduced as much as possible and the wife panel 3 is efficiently and continuously produced. be able to.

In the first transporting device 41, the two columns 15 are arranged in parallel at a predetermined distance from each other on the trolley 57 to be circulated and transported. The short-side beam 16 having a U-shaped cross section is disposed with the U-shaped groove facing upward, and is tack-welded in this state. Since the side and the web surface of the short side beam 16 are temporarily welded in a state where they are aligned with each other, the column 15 and the short side beam 16 can be temporarily temporarily attached in a predetermined positional relationship.

Since the frame 18 conveyed by the first conveying device 41 is turned upside down before being conveyed by the second conveying device 43, the short side of the frame 18 is formed. After changing the U-shaped groove of the beam 16 from the upward posture to the downward posture, the beam can be transported by the second transport device 43. When the U-shaped groove of the short side beam 16 faces downward, welding can be continuously performed along the U-shaped end of the short side beam 16 with the welding head always facing downward from outside.
The welding operation by the welding robots 44A and 44B can also be performed efficiently.

At this time, the frame 18 is moved horizontally by 9 mm.
After turning by 0 degrees and changing the posture in which the two columns 15 constituting the frame 18 are located before and after in the transport direction, the second transport device 43 transports the two columns 15.
3 is a simple chain conveyor 93A, 93B
Can be configured by In other words, since it is only necessary to carry while supporting the two pillars 15 located at the front and rear, the chain conveyors 93A and 93B which are structurally simpler than the first transporting device 41 having a structure for transporting the cart are used. Can be.

Further, guide frames 94A and 94B for supporting the transfer surfaces of the chain conveyors 93A and 93B constituting the second transfer device 43 are provided so as to be able to move up and down.
An elevating mechanism 95 is provided for elevating the conveying surfaces of the chain conveyors 93A, 93B via elevating the guide frames 94A, 94B. When the conveying surfaces of the chain conveyors 93A, 93B are lowered by the elevating mechanism 95, the frame 18 is moved. Receiving members 101A to 103B for positioning the frame 18 in the vertical direction in a state of being separated from the transport surface, and positioning mechanisms 109 and 1 for positioning the frame body 18 in the width direction and the transport direction.
When the frame 18 is conveyed to the welding position by the chain conveyors 93A and 93B, when the conveying surface of the chain conveyors 93A and 93B is lowered by the elevating mechanism 95, the frame 18 is separated from the conveying surface. In this state, it is supported by the receiving members 101A to 103B and positioned vertically.

At the same time, after positioning by the positioning mechanisms 109 and 110 in the width direction and the transport direction, the welding can be performed by the welding robots 44A and 44B. Can be kept. If the conveying surfaces of the chain conveyors 93A and 93B are raised by the elevating mechanism 95 after welding is completed, the chains can be immediately conveyed, so that efficient welding can be performed.

The panel reversing and turning device 42 includes a hoisting chain 65 of a hoist 64 supported by a support frame 63.
The guide rail 67 is supported horizontally and horizontally so as to be rotatable.
A and 68B are provided so that they can run freely, and the intermediate portions of reversing arms 74A and 74B having engaging portions 81 at both ends at the lower ends of the support arms 68A and 68B are rotatably supported. Frame 1 by joint 81
8 is held, the reversing arms 74A and 74B are
When the guide rail 67 is turned, the frame 1 can be turned upside down.
8 can be turned horizontally. Therefore, the burden on the worker is small, and the posture of the frame 18 can be changed efficiently.

In addition, a pair of reversing arms 74A, 74B
Are moved in directions approaching and moving away from each other, and the interval adjusting mechanism 69 for adjusting the interval is provided. Therefore, even if the frame body 18 is of various sizes having different width dimensions, the frame body 18 can be efficiently inverted and turned. In addition, each support arm 68A, 6A
8B and the reversing arms 74A, 74B, a lock mechanism 75 for locking the reversing arms 74A, 74B in a substantially horizontal state is provided. Since the operation can be performed in a state where the 74A and 74B are locked in a substantially horizontal state, safety of work can be ensured.

Further, the frame 18 conveyed by the second conveying device 43 is conveyed by the third conveying device 45 in the same posture, that is, the two pillars 15 are positioned in front and rear. Since the short side beam 16 is protruded outward from both sides of the third conveyance device 45 because the short side beam 16 is conveyed in a posture that has been adjusted, other processing such as rust prevention processing after welding is performed during the conveyance. And so on.

In the above embodiment, the first transport device 4
1 is turned upside down by the panel reversing and rotating device 42, and the frame 18 is turned 90 degrees in the horizontal direction.
The first transport device 4
If the two pillars 15 constituting the frame 18 are transported in the posture of being located in front and rear by 1, it is not necessary to turn the panel 18 horizontally by 90 degrees by the panel inversion turning device 42.

In the above embodiment, the wife panel was described. However, the present invention is not limited to this.
It can be widely used in general for architectural panels composed of two pillars 15 and two beams.

[0049]

As described above, according to the present invention, the burden on the operator can be reduced as much as possible, and the panel can be efficiently and continuously produced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a production process of a housing unit to which the present invention is applied.

FIG. 2 is an exploded perspective view of a housing unit manufactured by the production process of FIG.

FIG. 3 is an assembled perspective view of a housing unit manufactured by the production process of FIG. 1;

FIG. 4 is a block diagram showing detailed steps of a wife panel production line 26 shown in FIG.

FIG. 5 is a schematic view showing a first transfer device 41 shown in FIG.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 4;

FIG. 7 is a view as seen from the direction of arrow VII in FIG. 6;

8 is a sectional view taken along line VIII-VIII in FIG.

9 is a sectional view taken along line IX-IX in FIG. 7;

FIG. 10 is a plan view showing a second transfer device 43 shown in FIG.

11 is a front view showing a second transfer device 43 shown in FIG.

FIG. 12 is a sectional view taken along line XII-XII of FIG.

FIG. 13 is a front view showing the lifting mechanism 95 shown in FIG. 11;

FIG. 14 is a plan view showing a main part of FIG. 13;

15 is a diagram showing a work procedure in the wife panel production line 26 shown in FIG.

[Explanation of symbols]

 3 Wife panel 15 Pillar 16 Short side beam 18 Frame 41 First transfer device 42 Panel reversing turning device (panel reversing device) 44A, 44B Welding robot 57 Bogie 93A, 93B Chain conveyor

Continued on the front page (56) References JP-A-51-213976 (JP, A) JP-A-59-151664 (JP, U) JP-A-54-145875 (JP, U) (58) Fields investigated (Int) .Cl. ⁷ , DB name) B23P 21/00 302

Claims (1)

(57) [Claims] 1. Two pillars located on both sides in the transport direction and
A transport device for circulating and transporting a bogie for forming a rectangular frame by temporarily attaching two beams positioned between the respective ends of the two pillars with the welding surface thereof facing downward; A panel that lifts the frame on the trolley transported by this transport device, turns it upside down, and turns it 90 degrees horizontally.
Reversing turning device and reversing by this panel reversing turning device
And a chain conveyor for transporting the swiveled frame body in a horizontal position in which the two columns are positioned back and forth while supporting the two columns, and two columns installed on both sides of the chain conveyor. And a welding robot for welding a joint with the beam.