JPH05115968A - Automatic welding equipment for steel sheet panel - Google Patents

Abstract

PURPOSE:To perform high precision automatic welding on both steel sheet and reinforcing members by providing detaining mechanisms to a conveyor carriage of the steel sheet, a positioning and sandwiching mechanism of the reinforcing members and a welding torch. CONSTITUTION:The equipment to perform automatic welding of the reinforcing members 3 on the steel sheet 2 is provided with the carriage 5 which sandwiches the steel sheet 2 and moves along a conveyor 4, the detaining mechanisms 6 which detain and pressurize the steel sheet 2 and abut it on the carriage 5, the sandwiching mechanism 8 which positions the reinforcing members 3 in the longitudinal and cross directions and sandwiches and pressurizes the reinforcing members 3 to weld these to the steel sheet with pressure and the welding torch to continuously weld the reinforcing members 3 on the steel sheet 2. Consequently, the reinforcing members 3 can be automatically welded with excellent precision on the steel sheet 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for welding a plurality of rod-shaped reinforcing members as reinforcing members on the surface of a steel plate in parallel with each other.

[0002]

2. Description of the Related Art For example, in the case of constructing a hull, a method is generally adopted in which a hull block is manufactured by dividing an outer plate, a deck, a partition wall and the like of the hull, and the hull blocks are assembled.

Conventionally, when manufacturing a hull block of a flat portion, as shown in FIG. 12, a steel plate 81 is marked with an assembling position of a reinforcing member (longe) 82, and the reinforcing member 82 is manually placed at the marking position. After mounting by work, a method of welding the reinforcing member 82 to a steel plate to form the panel block 83 is used. This method requires many steps before welding as described above. It requires a high degree of skill, and the work is extremely complicated, resulting in poor workability.

Then, the transformer 84 is assembled to the panel block 83 to manufacture the hull block 85. To assemble the transformer 84, a large notch is previously formed in the slot 86 of the transformer 84 as shown in FIG. 12, the reinforcement member 82 is inserted into the notch 87 of the slot 86 while the transformer 84 is being hung from above by using a crane or the like, and then the notch 87 is formed into a collar as shown in FIG. The method of closing with the plate 88 was adopted. However, this method has a problem that the mounting work and the welding work of the color plate 88 must be performed manually.

Therefore, as shown in FIG. 14, the transformer 84 has a slit type slot 89 without a color plate.
When the transformer 84 is formed and the transformer 84 is assembled, the distal end portion 82 of the reinforcing member 82 is moved while moving the transformer 84 in the horizontal direction (longitudinal direction of the reinforcing member 82) as shown in FIG.
It has been considered that the slit 90 of the slot 89 is inserted into a and assembled.

[0006]

However, in order to adopt the above-mentioned transformer assembling method, the reinforcing member 82 is used.
Is required to be welded to the steel plate 81 with higher accuracy, and as described above, many steps are required before welding, a high degree of skill is required, work is extremely complicated, and workability is poor. There has been a problem that more time and labor have to be spent to perform welding with higher accuracy.

Therefore, it is an object of the present invention to employ a conventional method of welding a steel plate and a reinforcing member, which requires many steps before welding, requires a high degree of skill, is extremely complicated, and has poor workability. Another object of the present invention is to provide a steel plate panel automatic welding device capable of automatically welding a reinforcing member onto a steel plate with good accuracy.

[0008]

In order to achieve the above object, a steel plate panel automatic welding apparatus of the present invention is an apparatus for welding a plurality of rod-shaped reinforcing members to a surface of a steel plate in a mutually parallel state. A conveyor that carries the steel sheet and conveys it along the welding direction, and a carriage that is provided on a side portion of the conveyor and that holds the end portion of the steel sheet and moves along the conveyor,
A locking mechanism that locks and presses the end surface of the steel plate on the side opposite to the trolley to bring the steel plate into contact with the trolley, and the reinforcing member that is temporarily arranged on the steel plate is pressed from the tip end surface to reinforce the reinforcing member. Longitudinal positioning mechanism for positioning the member in the longitudinal direction, and the reinforcing member passing along with the steel plate in a state of being temporarily arranged on the steel plate is sandwiched from both sides to position the reinforcing member in the width direction and the positioning is performed. A holding machine that presses the reinforcing member from above while maintaining a state and press-contacts the steel plate, and the reinforcing member held by the holding machine and press-contacted to the steel plate is continuously welded to the steel plate according to the convey of the conveyor. And a welding torch.

[0009]

When the reinforcing member is welded onto the steel plate by the steel plate panel automatic welding apparatus of the present invention, first, the steel plate is mounted on the conveyor between the carriage and the locking mechanism, and the end surface of the steel plate is fixed by the locking mechanism. The steel plate is brought into contact with the carriage by locking and pressing. In this way, the end portion of the steel plate is held by the carriage while being positioned in the width direction. Then, a plurality of reinforcing members are arranged on the steel plate in this state at substantially temporary positions, and the conveyor is driven. Then, the steel sheet is conveyed by the conveyor while traveling on the carriage holding the end portion thereof (that is, while maintaining the positioning state) and reaches a predetermined position. Then, in this state, each reinforcing member temporarily arranged on the steel plate is pressed from the tip end surface by the longitudinal positioning mechanism to position the reinforcing member in the longitudinal direction, and each of the reinforcing members is clamped from both sides by the gripper. The positioning in the width direction is performed, and the reinforcing member is pressed from above so as to be pressed against the steel plate so that a gap or the like does not occur at the abutting portion of the reinforcing member with the steel plate. Then, by driving the conveyor in this state, the reinforcing member is conveyed while maintaining the positioning state with respect to the steel plate, and the welding torch continuously welds the reinforcing member to the steel plate in accordance with this conveyance. become. Therefore, the reinforcing member can be welded to the steel plate automatically and accurately.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A steel plate panel automatic welding apparatus according to an embodiment of the present invention will be described below with reference to FIGS.

The steel plate panel automatic welding apparatus 1 of this embodiment is
As shown in FIG. 11, a plurality of (five in this embodiment) rod-shaped reinforcing members 3 are welded to the surface of a steel plate 2 in parallel with each other, and FIG. In addition, the steel plate 2 is mounted on the upper surface, and is provided on the side of the conveyor 4 and the conveyor 4 that conveys along the welding direction thereof.
A trolley 5 that holds the end of the steel plate 2 and moves along the conveyor 4, and a locking mechanism 6 that locks and presses the end face of the steel plate 2 on the side opposite to the trolley to bring the steel plate 2 into contact with the trolley 5. A longitudinal positioning mechanism 7 (see FIG. 2) that presses each reinforcing member 3 temporarily arranged on the steel plate 2 from the tip end surface to position the reinforcing member 3 in the longitudinal direction, and a steel plate provided on the conveyor 4 Two
Each reinforcing member 3 that passes together with the steel plate 2 in a state of being temporarily arranged above is clamped from both sides to position the reinforcing member 3 in the width direction, and while maintaining this positioning state, the reinforcing member 3 is pressed from above. A holding machine 8 that presses the steel plate 2 against the steel plate 2, and a welding torch 9 that continuously welds the reinforcing member 3 pressed against the steel plate 2 by the holding machine 8 to the steel plate 2 as the conveyor 4 conveys it (see FIG. 9). A control device S for controlling these is provided.

In this embodiment, the steel plate 2 is a flat plate having a relatively long length, and the reinforcing member 3 is a shaped steel strip having substantially the same length as the steel plate 2 (in this embodiment, the upper plate portion 3a). And a T-shaped steel consisting of the substrate portion 3b) is used. Then, a plurality of the reinforcing members 3 are placed along the longitudinal direction of the steel sheet 2 so as to stand vertically, and are installed in parallel with each other. 2 is fillet welded.

Next, each of the above configurations will be described. In the present embodiment, the conveyor 4 shown in FIG.
Also, as shown in FIG. 2, a roller conveyor in which a plurality of rollers 10 are arranged in parallel is applied.
By driving a chain 11 wound between 0s with a motor 12, each roller 10 is rotated to convey the steel sheet 2 substantially linearly along the longitudinal direction. The length of the conveyor 4 is set to be a predetermined amount larger than twice the length of the largest steel plate 2 to be handled, and its width is set to be a predetermined amount larger than the width of the largest steel plate 2 to be handled.

The carriage 5 is, as shown in FIGS.
It is provided on one side of the conveyor 4 along the carrying direction, and a plurality of (6 in this embodiment) are connected along the carrying direction so as to have a length corresponding to approximately half the length of the conveyor 4. Is placed in the initial state on the front half of the conveyor 4 (the side on which the steel plate 2 is initially mounted, that is, the front side of FIG. 1, hereinafter the same), and the movement of the steel plate 2 by the drive of the conveyor 4 is performed. Along with this, the conveyor 4 is moved toward the latter half portion side (the opposite side to the former half portion, that is, the portion on the far side in FIG. 1, hereinafter the same). Here, each of the connected carts 5 has substantially the same length as the conveyor 4 and the base 13 provided on the side portion and the base 13 laid on the base 13 are substantially the same. It is possible to move along the conveyor by the two pairs of guides 14 having the length of and parallel to each other (see FIG. 4). These guides 14 are provided with a traveling body 15 to which the truck 5 is fixed on the upper surface, and a rail 16 whose lower surface is fixed to the base 13 and on which the traveling body 15 travels above. The position of the traveling body 15 with respect to the rail 16 is always kept within a predetermined accuracy except in the traveling direction. Further, a plurality of traveling bodies 15 of both guides 14 are fixed to the lower surface of each carriage 5 in order to stabilize the movement thereof.

Further, on each carriage 5, the end portion 2a of the steel plate 2 is
A clamp 17 for holding the upper and lower surfaces is provided. The clamp 17 has a shape that opens toward the conveyor 4, and an upper claw portion 20 that moves up and down by a clamping cylinder 18 to hold the steel plate 2 between it and a lower claw portion 19, which will be described later, and a conveyor. 4 has a lower claw portion 19 which is provided at substantially the same height as the upper end of the roller 10 and is fixed to the carriage 5 so as to face the upper claw portion 20. Further, on the front side of each clamp 17 in the transport direction, an abutting portion 21 having a height higher than the lower claw portion 19 by a predetermined amount is provided in proximity to the steel plate 2.
By being pressed by the locking mechanism 6 and brought into contact with the contact surface 21a of the contact portion 21 on the conveyor 4 side, the width direction of the contact portion 21 is positioned. In addition, in this embodiment, the clamp 17 is attached to each of the carriages 5.
The contact surfaces 21a of all the contact portions 21 are accurately arranged in the same plane. Therefore, the steel plate 2 that moves on the conveyor 4 while being held by the carriage 5.
Is always positioned in the width direction regardless of the position on the conveyor 4.

As shown in FIGS. 1 to 3, a plurality of locking mechanisms 6 are provided between the predetermined rollers 10 in the front half of the conveyor 4 so as to be substantially parallel to the rollers 10 (in this embodiment, four locations). Each locking mechanism 6 is provided on the side of the conveyor 4 opposite to the carriage 5 and has a projecting piece 22 that projects upward from the upper end of each roller 10 and below the upper end of each roller 10. Is located on the projecting piece 22 by driving the motor 23 by using, for example, a rack and pinion.
And a slide mechanism 24 for moving the vehicle toward the carriage 5.

The longitudinal positioning mechanism 7 is provided between the rollers 10 at a substantially intermediate position of the conveyor 4 so as to be orthogonal to the conveying direction. As shown in FIG. A mounting member 25 provided on the mounting member 25, a vertically-moving cylinder 26 mounted on the mounting member 25, and a plurality of guide pins 27 slidably mounted on the mounting member 25 so as to be parallel to the cylinder 26.
And the upper ends of the guide pins 27 and the cylinder 26.
It has a moving part 28 which is fixed to the protruding tip end part of the cylinder 26 and moves up and down by the stroke of the cylinder 26, and a positioning cylinder 29 which is provided on the moving part 28 and strokes along the conveying direction of the conveyor 4.

Here, when the cylinder 26 does not advance upward (inoperative state), the upper end of the longitudinal positioning mechanism 7 is located below the upper end of each roller 10 of the conveyor 4. Therefore, it does not interfere with the conveyance of the steel plate 2. Then, when the state in which the front end portion of the steel plate 2 is arranged at a predetermined position is detected by a limit switch or the like (not shown), the conveyance by the conveyor 4 is temporarily stopped by a command from the control device S, and the positioning cylinder 29 is operated. Thus, the front end surface 3 of the reinforcing member 3 (which will be described later) that is temporarily arranged with the front end protruding from the steel plate 2
By pressing d, the reinforcing member 3 is pushed back to a predetermined position, thereby positioning the reinforcing member 3 with respect to the steel plate 2 in the longitudinal direction. In this way, by providing the longitudinal positioning mechanism 7 on the leading end side in the transport direction, it is possible to deal with various works in which the longitudinal dimensions of the steel plate 2 and the reinforcing member 3 are different without setup change. You can do it. That is, if the longitudinal positioning mechanism 7 having the above structure is provided on the rear end side in the transport direction, the position must be changed every time the longitudinal dimensions of the steel plate 2 and the reinforcing member 3 differ.

As shown in FIG. 6 and the like, the holding machine 8 has a number of mobile units 30A to 30F (6 units in this embodiment) which is one more than the maximum number of the reinforcing members 3 to be welded, and the mobile units 30A. The mobile unit 30A for traversing
Each of the horizontal members 31 to 30F is provided (see FIG. 7), and is provided above the substantially central position in the longitudinal direction of the conveyor by the traveling frame 32. Here, the traveling frame 32 connects the pillars 33 installed on the floors on both sides of the conveyor 4 and the upper ends of both pillars 33 and separates them from the conveyor 4 by a predetermined amount in the conveying direction of the conveyor 4. The support beam 34 extends orthogonally, and the surface portion 34a of the support beam 34 on the side facing the front half of the conveyor 4 is parallel to each other and extends in the same direction as the support beam 34. Two transverse guides 35 are laid. A rack gear 36 extending in the same direction as the support beam 34 is fixed to the upper surface of the support beam 34.

Each of the transverse guides 35, as shown in FIG.
The support beam 34 extends in the same direction as the support beam 34.
Rail 37 fixed to the surface portion 34a of the
7 and the traveling body 37 that travels on the traveling body 7, and the transverse member 31 is fixed to the traveling bodies 38 of both the transverse guides 35. The support beam 3 is provided on the traverse member 31.
4 is provided with a pinion gear 39 that meshes with the rack gear 36 of No. 4 and an NC control traverse servomotor 40 that drives the pinion gear 39. By driving the traverse servomotor 40, the traverse member 31 extends in the extending direction of the support beam 34. It is designed to move along. As with the guide 14, the traverse guide 35 is designed such that its traveling body 38 is always maintained within a predetermined accuracy with respect to the rail 37 except in the traveling direction. Three
A plurality of traveling bodies 38 of both transverse guides 35 are fixed to the vehicle 1 to stabilize its movement.

Further, the anti-support beam 34 of each traverse member 31
The mobile units 30A to 30F are movably supported on the side surface portion 31a via two elevating guides 41 that are parallel to each other. These lifting guides 41
Is a rail 42 that is fixed to the surface portion 31a of the traverse member 31 so as to extend vertically, and a traveling body 4 that travels on the rail 42 and to which each of the mobile units 30A to 30F is fixed.
3 and 3. It should be noted that, like the guide 14 and the traverse guide 35, the lift guide 41 also has its traveling body 4
The position of the rail 3 is always kept within a predetermined accuracy with respect to the rail 42 except for the traveling direction. Further, the respective mobile units 30A to 30F have both lift guides 41 for stabilizing the movement. The plurality of running bodies 43 are fixed.

Further, on the upper part of each of the mobile units 30A to 30F, there are provided lifting jacks 44 which can be vertically stroked and stopped at arbitrary positions. The lower end tips of the lifting jacks 44 on the projecting side. Are attached to the upper ends of the traverse members 31, respectively. Then, by driving these lifting jacks 44, each mobile unit 30A
.About.30F move up and down with respect to each transverse member 31.

Each of the mobile units 30A to 30F has a main body 45 on which the traveling body 43 of the elevating guide 41 and the like are provided, and, as shown in FIG. 6, reinforcements provided at the lower end of the main body 45 and temporarily arranged on the steel plate 2. A holding mechanism 46 for holding the base plate portion 3b of the member 3 from both sides, and a pressing mechanism 47 for pressing the reinforcing member 3 from above are provided. Since the mobile stations 30A to 30F located at both ends 30A and 30F are slightly different from the mobile stations 30B to 30E located in the middle, first,
The mobile devices 30B to 30E located in the middle will be described.
Only the differences between 30A and 30F will be described later.

As shown in FIGS. 6 and 9, each of the intermediate mobile units 30B to 30E has a fixed arm fixed to the main body 45 extending from the lower end thereof in the direction opposite to the carriage 5 (leftward in FIG. 6). 48, and a reference roller 49 provided at the lower end of the fixed arm 48 and having a rotation shaft extending vertically.
A detachable auxiliary roller 50 provided at the top end of the fixed arm 48 is provided. Here, the reference roller 4
9 is the side opposite to the bogie 5 (left side in FIGS. 6 and 9)
Of the auxiliary roller 5 serves as a reference for positioning the reinforcing member 3 in the width direction when the reinforcing member 3 is clamped.
0 is for further improving the squareness and the like when the height of the reinforcing member 3 is high, and it is coaxial with the reference roller 49 and the position of the tip end portion on the side opposite to the carriage 5 is the same as that of the reference roller 49. It is provided so as to be in a position.

At the lower end of each main body 45 of the mobile units 30B to 30E, the pressing roller 5 is arranged so as to be almost at the same height as the reference roller 49 of the mobile unit adjacent to the carriage 5.
1 is provided at the lower end of the sliding arm 52 with the rotation axis extending vertically, and a similar auxiliary roller 53 is provided at the upper end of the sliding arm 52 for the same purpose as the auxiliary roller 50. There is. Here, the sliding arm 52 is slidably provided in the moving machine body 45 so as to advance the pressing roller 51 by a hydraulic telescopic cylinder 54 that strokes in parallel with the sliding arm 52. The fixed arm 48 and the reference roller 49 described above, and the pressing roller 51, the sliding arm 54, and the hydraulic telescopic cylinder 54, which are opposed to the fixed arm 48 and the reference roller 49, form a holding mechanism 46. In addition, in this embodiment, each of the mobile devices 30B to 30E
As shown in FIG. 7, the holding mechanism 46 is provided in parallel with the front and rear sides of the steel plate 2 and the reinforcing member 3 in two rows.

Further, as shown in FIG. 10, vertical movement guides 55 extending vertically are provided on the side surface 45a of the main body 45 of each of the mobile units 30B to 30E on the side opposite to the carriage 5, as shown in FIG. Has been. Similar to the above, these vertical movement guides 55 are also provided with rails 56 fixed to the moving machine main body 45 so as to extend vertically and a traveling body 57 traveling on the rails 56. A vertical moving member 58 is fixed to the traveling body 57. And
A jack 59 that strokes up and down and can be stopped at an arbitrary position is provided on the upper part of the mobile units 30B to 30E, and the tip end of the jack 59 on the protruding side is attached to the up-and-down moving member 58. 58 is adapted to move up and down by the stroke of the jack 59. In the present embodiment, the vertical movement member 58 is provided with the pressing mechanism 47 located on the front half side of the conveyor 4.

The pressing mechanism 47 has a cylinder 61 that strokes up and down, a vertically extending support member 62 that is provided in parallel with the cylinder 61, and is attached to the tip of the protruding side of the cylinder 61 at an intermediate portion and has one end. Includes a swing member 64 supported by a fulcrum 63 of the support member 62, and a roller 65 rotatably supported by the other end of the swing member 64 and having a rotation axis orthogonal to the transport direction,
When the cylinder 61 is operated and moved forward, the swinging member 64 swings around the fulcrum 63, the roller 65 provided at the other end is moved downward, and the reinforcing member 3 is pressed from above.

Here, due to the pressing by the pressing mechanism 47 and the holding by the holding mechanism 46, the reinforcing member 3 is restricted from moving in a direction other than the conveying direction (that is, is positioned in the width direction) and is against the steel plate 2. The steel sheet 2 is conveyed on the conveyor 4 integrally with the steel plate 2 without being displaced in the conveying direction.

Since the reinforcing member 3 is inserted between the mobile units 30A to 30F, the mobile units 30A to 3F are to be inserted.
Of 0F, the mobile device 30A located closest to the trolley 5 is
The pressing roller 51 of the holding mechanism 46, the sliding arm 52 and the hydraulic telescopic cylinder 54 are not provided, and
For the same reason as above, the mobile unit 30F located closest to the trolley 5 is not provided with the fixed arm 48 of the holding mechanism 46, the reference roller 49, and the pressing mechanism 47. And
The mobile units 30A and 30F have substantially the same configuration as the mobile units 30B to 30E except for the above points.

The welding torch 9 is of a so-called floating type, and as shown in FIGS. 9 and 10,
The lower end of the base plate portion 3b of the reinforcing member 3 pressed against the steel plate 2 by the sandwiching machine 8 is provided on the second half of the conveyer side of each of the mobile units 30A to 30F so as to fillet weld the steel plate 2 from both sides. Has been. Therefore, mobile units 30 at both ends
A and 30F do not have the outer one respectively.

In the present embodiment, when the carriage 5 holding the steel plate 2 moves by the drive of the conveyor 4 and reaches a predetermined position, the steel plate 2 is held to perform the above-mentioned positioning and other operations. A carriage clamp mechanism (not shown) is provided for clamping the moving carriage 5 to the non-movable portion of the conveyor 4.

A method of welding a plurality of reinforcing members 3 to the surface of the steel plate 2 by the steel plate panel automatic welding apparatus 1 thus constructed will be described below.

First, the sandwiching machine 8 provided in the substantially center of the conveyor 4 is prepared in an appropriate standby state in accordance with the number of reinforcing members 3, the welding pitch and the height thereof. That is, according to the number of reinforcing members 3 to be welded to the steel plate 2, the mobile device 30A
A usage number of ~ 30F will be selected. In the present embodiment, the case where all of the mobile units 30A to 30F are used will be described as an example (when some of the mobile units 30A to 30F are not used, they do not interfere with the transported reinforcing member 3). Will be moved to the position).

The traverse member 31 is moved along the traverse guide 35 by driving the pinion gear 39 of each of the mobile units 30A to 30F by the traverse servo motor 40.
Along with this, the reference roller 49 is arranged at the corresponding position so as to arrange the reinforcing member 3 at the predetermined welding position.
At this time, the pressing roller 51 located at a position facing the reference roller 49 does not operate the hydraulic telescopic cylinder 54 and is not advanced.

Further, the moving machines 30A to 30F can move to a proper position with respect to the traverse member 31 through the elevating guide 41 by operating the elevating jacks 44 and moving them forward by a predetermined amount, and hold the state. it can. That is, the upper and lower positions of the holding mechanism 46 and the welding torch 9 are properly arranged. Then, in this state, the jack 59 of the pressing mechanism 47 of each of the mobile units 30A to 30E excluding the mobile unit 30F located on the side opposite to the bogie 5 is operated according to the height of the reinforcing member 3 to operate the vertical movement member 58 as a reinforcing member. It is arranged to stop at a predetermined height according to the height of 3 or the like.

The steel sheet panel automatic welding apparatus 1 arranged in the above state is loaded with the steel sheet 2 at a substantially initial loading position of the conveyor 4 by using a crane or the like. In this case, the steel plate 2 has a longitudinal direction in the front half of the conveyor 4,
Since the vehicle may be mounted so that the width direction thereof falls within a relatively rough range between the carriage 5 and the protruding piece 22 of the locking mechanism 6,
The initial mounting work can be performed very easily, and the labor and time required for this work can be greatly reduced.

Next, the motor 23 is operated to move the protruding piece 22 by the slide mechanism 24 in order to lock and press the end surface of the steel plate 2 on the side opposite to the trolley 5 with the protruding piece 22 of the locking mechanism 6 from the outside. The end portion 2a of the steel plate 2 on the trolley 5 side is inserted into the clamp 17 of the trolley 5 in the open state and brought into contact with the contact portion 21 to position the steel plate 2 in the width direction. Then, by operating the clamping cylinder 18 of the clamp 17 in this state, the upper and lower surfaces of the end portion 2a of the steel plate 2 are held by the upper claw portion 20 and the lower claw portion 19. By adopting such a widthwise positioning method for the steel plates 2, even when handling steel plates 2 having different widthwise dimensions, work such as setup change becomes unnecessary. In addition, a plurality of carriages 5 are connected, and each carriage is clamped by the clamp 1.
Since a plurality of steel plates 7 are provided, work such as setup change is not necessary even when handling steel plates 2 having different longitudinal dimensions. That is, if the steel plate 2 has a length equal to or more than the distance between the two closest ones of the plurality of clamps 17, any one of the clamps 17 can be clamped by two or more and can be positioned.

Then, the reinforcing members 3 are provisionally arranged on the steel plate 2 in such a state. Here, this temporary arrangement is on the extension line along the conveyance direction inside the reference roller 49 and the auxiliary roller 50 of each of the moving machines 30B to 30F of the holding machine 8 and in the state of being maximally separated from this (that is, the hydraulic telescopic cylinder 54). (In the non-operating state) between the inner side of the pressing roller 51 and the auxiliary roller 53 and the extension line along the transport direction, the front end portion of the substrate portion 3b of each reinforcing member 3 on the transport direction side is positioned, Further, the tip portion is projected within the range of the stroke amount of the positioning cylinder 29 of the longitudinal positioning mechanism 7 (that is, the range in which the longitudinal positioning mechanism 7 can push back). Therefore, it is not necessary to arrange the reinforcing member 3 in accordance with the marking as well, and it is sufficient to arrange the reinforcing member 3 so as to fall within the relatively rough range as described above. The labor and time required for the work can be greatly reduced. In this example,
Since the T-shaped steel is used as the reinforcing member 3, a temporary jig (not shown) that keeps the reinforcing member 3 substantially upright until it is held by the holding machine 8 is used.

Next, the steel plate 2 on which the reinforcing members 3 are temporarily arranged as described above is conveyed by the rotation of the roller 10 by driving the motor 12 of the conveyor 4. Here, the carriage 5 holding the end portion 2a of the steel plate 2 moves along the guide 14 by the conveyance of the steel plate 2, so that the steel plate 2 can be conveyed while always maintaining its positioning in the width direction. It is said that. And, for example, the steel plate 2
The position of the tip of the conveyor is detected by a limit switch (not shown) or the like, and when it is determined that the tip has reached a predetermined position, the driving of the conveyor 4 is temporarily stopped and the carriage is clamped by a carriage (not shown). Is clamped on the non-movable part of the conveyor 4. This position is the reference position in the longitudinal direction of the steel plate 2.

Then, in this state, the cylinder 26 is actuated to move the moving portion 28 upward with respect to the tip surface 3d of the reinforcing member 3 which is temporarily arranged by projecting the tip portion from the steel plate 2 as described above. The positioning cylinder 29 of the longitudinal positioning mechanism 7 pushes the reinforcing member 3 back to a predetermined position (a position matching the tip of the steel plate in this embodiment) to position the reinforcing member 3 with respect to the steel plate 2 in the longitudinal direction.

Further, each of the mobile units 30A to 30F of the holding unit 8
The hydraulic telescopic cylinder 54 of the holding mechanism 46 is operated to advance the pressing roller 51 and the auxiliary roller 53, and the substrate portion of the reinforcing member 3 is interposed between the pressing roller 51 and the auxiliary roller 53 and the reference roller 49 and the auxiliary roller 50. The reinforcing member 3 is positioned in the width direction by sandwiching the vicinity of the tip of 3b from both sides. Then, the cylinder 61 of the pressing mechanism 47 located above is operated to bring the roller 65 into contact with the vicinity of the tip of the upper plate portion 3a of the reinforcing member 3 and press downward to bring the reinforcing member 3 into pressure contact with the steel plate 2. ..

From the above state, the carriage 5 and the non-movable portion of the conveyor 4 are released from the clamp by a carriage clamp mechanism (not shown), and the conveyor 4 is driven to convey the steel plate 2 and the reinforcing member 3. Then, each reinforcing member 3 passing through the sandwiching machine 8 is positioned in the width direction by the sandwiching machine 8 and is maintained in the longitudinal direction with respect to the steel plate 2 while maintaining the state in which the reinforcing member 3 is conveyed along with the steel plate 2. Move to
In accordance with this movement, each of the mobile devices 30A to 3A of the holding device 8
The respective welding torches 9 respectively provided on the facing surface portions of 0F continuously fillet the lower end portions of the substrate portions 3b of the reinforcing members 3 from both sides. As described above, the welding torches 9 are provided at positions close to each other in the carrying direction of the holding mechanism 46 and the pressing mechanism 47 of the holding machine 8, so that the steel plate 2 and the reinforcing member 3 are welded with high accuracy. You will be able to do it. In addition, each reinforcing member 3
Will be welded in a state of being pressed against the steel plate 2 by the pressing mechanism 47, so that no gap will be created between them and welding defects due to this will not occur.

When the welding of the steel plate 2 and the reinforcing member 3 is completed and these reach the latter half of the conveyor 4, the carriage 5
By deactivating the clamping cylinder 18 of the clamp 17, the upper claw portion 20 is separated from the lower claw portion 19, and the holding of the steel plate 2 is released. In addition, when the gripping of the steel plate 2 is released, the carriage 5 returns to the initial position in order to grip the next steel plate 2.

The steel plate 2 to which the reinforcing member 3 is welded will be sent to the next step such as assembling of a transformer, if necessary. According to the steel plate panel automatic welding apparatus 1 of this embodiment, As described above, since the squareness of the steel plate 2 and the reinforcing member 3 can be accurately welded, a slit-shaped slot without a color plate is formed in the transformer so that the transformer is horizontal (longitudinal direction of the reinforcing member). It is possible to adopt a method in which the transformer is assembled by inserting the slit of the slot into the distal end portion of the reinforcing member while moving it to. Therefore, the work of assembling the transformer is facilitated, and the labor and time required for the work can be significantly reduced.

In this embodiment, since the positioning of each mobile unit of the holding machine is performed by NC control, the setup change such as the placement position of the reinforcing member placed on the steel plate is input in advance. This can be done only by reading and executing the program, and workability and work efficiency will be greatly improved.

Also in the welding torch, when the reinforcing member has an intermittent portion such as a hole, it is possible to stop the welding while passing through the portion.

[0047]

As described in detail above, according to the steel plate panel automatic welding apparatus of the present invention, the steel plate is mounted on the conveyor between the carriage and the locking mechanism, and the locking mechanism holds the end surface of the steel plate. Stop and press this steel plate against the trolley, hold the end of the steel plate with the trolley in the state of being positioned in the width direction in this way, and then place a plurality of reinforcing members on the steel plate in this state in a substantially temporary manner. When the conveyor is placed at the position of, the steel plate is conveyed by the conveyor while the carriage holding the end of the steel plate travels (that is, while maintaining the positioning state) and reaches the predetermined position. Then, each reinforcing member temporarily placed on the steel plate is pressed from the tip end surface by the longitudinal positioning mechanism to position it in the longitudinal direction, and by a holding machine, each reinforcing member is clamped from both sides and When positioning In the meantime, the reinforcing member is pressed against the steel plate from above so that a gap or the like does not occur in the abutting portion of the reinforcing member with the steel plate, and is pressed against the steel plate, and by driving the conveyor in this state, the reinforcing member is against the steel plate. The reinforcing member is conveyed while maintaining the positioning state, and the reinforcing member is continuously welded to the steel plate by the welding torch in accordance with the conveyance. Therefore, the reinforcing member can be automatically welded onto the steel plate with good accuracy.

Moreover, since the steel plate may be mounted such that the longitudinal direction thereof is within the front half of the conveyor and the width direction thereof is within the range where the carriage and the locking mechanism can press and lock, the initial mounting work is extremely difficult. Will be easy to do,
The time required for this work can be greatly reduced.

Further, it is not necessary to dispose the reinforcing member in accordance with the marking either, and the tip portion thereof may be slightly protruded from the steel plate and may be arranged in a rough position such that it is aligned with the opening portion of the holding mechanism. The time required for this work can be greatly reduced.

Further, since the steel plate is locked from the outside by the locking mechanism and brought into contact with the carriage to be positioned in the width direction, and the carriage holds the steel plate in this state, the dimension in the width direction is reduced. Even when handling different steel plates, work such as setup change becomes unnecessary.

Further, when the transformer is assembled to the steel plate and the reinforcing member thus welded, a slit-shaped slot without a color plate is formed in the transformer so that the transformer is horizontally (longitudinal direction of the reinforcing member). It is possible to adopt a method in which the transformer is assembled by inserting the slit of the slot into the tip of the reinforcing member while moving. Therefore, the work for assembling the transformer is also facilitated, and the labor and time required for the work can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a steel plate panel automatic welding apparatus according to an embodiment of the present invention.

FIG. 2 shows a steel plate panel automatic welding apparatus according to an embodiment of the present invention, and is a plan view of a first half portion of a conveyor thereof.

FIG. 3 shows a steel plate panel automatic welding apparatus according to an embodiment of the present invention, and is a partially enlarged view of a carriage, a locking mechanism, and the like.

FIG. 4 shows a steel plate panel automatic welding apparatus according to an embodiment of the present invention, and is a cross-sectional view of a carriage thereof.

FIG. 5 is a sectional view of a longitudinal positioning mechanism of the automatic steel plate panel welding apparatus according to an embodiment of the present invention.

FIG. 6 is a view showing an automatic welding apparatus for steel plate panels according to an embodiment of the present invention, and is a view of the holding machine seen from the rear side in the conveying direction of the conveyor.

FIG. 7 shows a steel plate panel automatic welding apparatus according to an embodiment of the present invention, and is a plan view of a holding machine thereof.

8 shows a steel plate panel automatic welding apparatus according to an embodiment of the present invention, and is a side view of the holding machine viewed from the X direction shown in FIG. 6. FIG.

FIG. 9 is a partially enlarged view showing a steel plate panel automatic welding apparatus according to an embodiment of the present invention and showing a holding mechanism and the like of the holding machine.

FIG. 10 shows an automatic welding apparatus for steel plate panels according to an embodiment of the present invention, and is a side view of a mobile machine of the holding machine except for the leftmost one in FIG. 6 viewed from the Y direction in the same figure. It is a figure.

FIG. 11 is a perspective view showing a steel plate and a reinforcing member welded by the steel plate panel automatic welding apparatus according to the embodiment of the present invention.

FIG. 12 is a perspective view schematically showing a conventional method of welding a steel plate panel.

FIG. 13 is a cross-sectional view showing a conventional slot.

FIG. 14 is a cross-sectional view showing a slit type slot.

FIG. 15 is a perspective view schematically showing a method of manufacturing a hull block when a slit type slot is adopted.

[Explanation of symbols]

 1 Automatic Steel Plate Panel Welding Device 2 Steel Plate 2a End 3 Reinforcing Member 3d Tip Surface 4 Conveyor 5 Carriage 6 Locking Mechanism 7 Longitudinal Positioning Mechanism 8 Clamping Machine 9 Welding Torch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ryo Endo Ryo Endo 3-15-15 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. Toni Technical Center (72) Inventor Nobuo Izu Kudan Minami, Chiyoda-ku, Tokyo 4-7-15 Ishi Kawashima System Technology Co., Ltd. (72) Inventor Naofumi Ito 4-7-15 Kudan Minami, Chiyoda-ku, Tokyo Ishi Kawashima System Technology Co., Ltd.

Claims (1)

[Claims] 1. A device for welding a plurality of rod-shaped reinforcing members to a surface of a steel plate in a mutually parallel state, comprising: a conveyor that carries the steel plate and conveys it along the welding direction; and a side part of the conveyor. A trolley that is provided to hold the end of the steel plate and moves along the conveyor; and a locking mechanism that locks and presses the end surface of the steel plate on the side opposite to the trolley to bring the steel plate into contact with the trolley. A longitudinal positioning mechanism that presses the reinforcing member that is temporarily arranged on the steel plate from the tip surface to position the reinforcing member in the longitudinal direction, and passes with the steel plate in a state where the reinforcing member is temporarily arranged on the steel plate. A sandwiching machine that sandwiches the reinforcing member from both sides to position the reinforcing member in the width direction and presses the reinforcing member from above while pressing the reinforcing member while maintaining this positioning state, and a sandwiching machine that sandwiches the reinforcing member. The steel A steel plate panel automatic welding apparatus, comprising: a welding torch for continuously welding the reinforcing member pressed against the plate to the steel plate as it is conveyed by the conveyor.