JP3184577B2 - Automatic steel plate panel welding 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 welding a plurality of rod-shaped reinforcing members as reinforcing members to a surface of a steel sheet in a mutually parallel state.

[0002]

2. Description of the Related Art For example, when a hull is constructed, a method is generally employed in which a hull block is manufactured by dividing an outer plate, a deck, a bulkhead, and the like of the hull, and the hull blocks are assembled.

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

Then, a hull block 85 is manufactured by assembling a transformer 84 with the panel block 83. To assemble the transformer 84, as shown in FIG. 12, a reinforcing member 82 is inserted into the notch 87 of the slot 86 while the transformer 84 is suspended from above using a crane or the like, and then the notch 87 is A method of closing with a plate 88 has been adopted. However, this method has a problem that the work of attaching and welding the color plate 88 must be performed manually.

For this reason, as shown in FIG. 14, a transformer 84 has a slit-type slot 89 without a color plate.
When assembling the transformer 84, as shown in FIG. 15, the distal end 82 of the reinforcing member 82 is moved while moving the transformer 84 in the horizontal direction (the longitudinal direction of the reinforcing member 82).
It has been considered that a slit 90 of a slot 89 is inserted through a.

[0006]

However, in order to adopt the above-mentioned transformer assembling method, the reinforcing member 82 is required.
Need 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, the work is extremely complicated, and the reinforcing member 82 to the steel plate 81 with poor workability is required. There is a problem that more labor and time must be spent to perform welding with higher accuracy.

Accordingly, an object of the present invention is to employ a conventional method of welding a steel plate to 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 sheet panel automatic welding apparatus capable of automatically welding a reinforcing member on a steel sheet with good accuracy and automatically.

[0008]

In order to achieve the above object, an automatic welding apparatus for a steel sheet panel according to the present invention is an apparatus for welding a plurality of rod-shaped reinforcing members to a surface of a steel sheet in a mutually parallel state. A conveyor mounted with the steel plate and transported along the welding direction thereof, and a trolley provided on a side of the conveyor and sandwiching an end of the steel plate and moving along the conveyor,
A locking mechanism that locks and presses the end surface of the steel plate on the opposite side of the bogie and presses the steel plate against the bogie, and presses the reinforcing member temporarily disposed on the steel plate from the front end surface to perform the reinforcement. A longitudinal positioning mechanism for positioning the member in the longitudinal direction; and a positioning member for temporarily positioning the reinforcing member that passes along with the steel plate while being placed on the steel plate, for positioning the reinforcing member in the width direction. A holding machine for pressing the reinforcing member from above while pressing against the steel sheet while maintaining the state, and continuously welding the reinforcing member held by the holding machine and pressed against the steel sheet to the steel sheet according to the conveyance of the conveyor. and a welding torch, the pinching machine
During the welding with the welding torch,
And presses the reinforcing member from above to press against the steel plate.
In the contacted state, with respect to the conveying direction of the conveyor
The position is fixed .

[0009]

When a reinforcing member is to be welded on a steel plate by the automatic steel plate panel welding apparatus of the present invention, first, the steel plate is mounted on a conveyor between a carriage and a locking mechanism, and the end face of the steel plate is locked by the locking mechanism. The steel plate is brought into contact with the carriage by locking and pressing. The end of the steel plate is clamped by the bogie while being positioned in the width direction in this manner. Then, a plurality of reinforcing members are arranged at substantially temporary positions on the steel plate in this state, and the conveyor is driven. Then, the steel sheet is conveyed by the conveyor while traveling on the bogie holding the end thereof (that is, while maintaining the positioning state), and reaches the predetermined position. Then, in this state, each reinforcing member temporarily placed on the steel plate is pressed from the distal end face by a longitudinal positioning mechanism to position the reinforcing member in the longitudinal direction, and each reinforcing member is clamped from both sides by a clamping machine. In addition to positioning in the width direction, the reinforcing member is pressed from above and 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. 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 reinforcing member is continuously welded to the steel plate with a welding torch according to this conveyance. become. Therefore, the reinforcing member is automatically and accurately positioned on the steel plate.
And can be welded. In addition, the clamping machine is
During welding with a pier, the reinforcing member is sandwiched from both sides to
When the material is pressed from above and pressed against the steel plate,
Fixed, so that the holding machine holds the reinforcing member
The gripper is less likely to be displaced than when it is moved.
As a result, the reinforcing members to be sandwiched are less likely to be displaced.
No.

[0010]

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

An automatic welding apparatus 1 for a steel sheet panel according to the present embodiment
As shown in FIG. 11, a plurality of (five in this embodiment) rod-shaped reinforcing members 3 are welded in parallel to each other on the surface of a steel plate 2, and the overall configuration is shown in FIG. A conveyor 4 on which the steel plate 2 is mounted on the upper surface and which is conveyed along the welding direction, provided on a side portion of the conveyor 4,
A carriage 5 which holds the end of the steel plate 2 and moves along the conveyor 4; a locking mechanism 6 which locks and presses the end surface of the steel plate 2 on the side opposite to the carriage to press the steel plate 2 against the carriage 5; A longitudinal positioning mechanism 7 (see FIG. 2) for pressing the reinforcing members 3 temporarily disposed on the steel plate 2 from the front end surface to position the reinforcing members 3 in the longitudinal direction; 2
Each reinforcing member 3 passing along with the steel plate 2 while being temporarily disposed on the upper side is sandwiched from both sides to position the reinforcing member 3 in the width direction, and the reinforcing member 3 is positioned from above while maintaining this positioning state. A clamping device 8 for pressing and pressing against the steel plate 2; a welding torch 9 (see FIG. 9) for continuously welding the reinforcing member 3 pressed against the steel plate 2 by the clamping device 8 to the steel plate 2 as the conveyor 4 is conveyed; A control device S for controlling these components is provided.

In this embodiment, the steel plate 2 is a flat plate having a comparatively long length, and the reinforcing member 3 is formed of 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-section steel comprising the substrate portion 3b). A plurality of the reinforcing members 3 are attached to the longitudinal direction of the steel plate 2 and are set up vertically so as to be parallel to each other. 2 is to be fillet welded.

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

The cart 5 is, as shown in FIGS.
It is provided on one side of the conveyor 4 along the transport direction, and a plurality of (six in this embodiment) are connected along the transport direction so as to have a length corresponding to substantially half the length of the conveyor 4. The conveyor 4 is disposed in an initial state on a first half portion (a side on which the steel plate 2 is initially mounted, that is, a portion on the front side in FIG. 1, the same applies hereinafter) of the conveyor 4, and the conveyor 4 is driven by the movement of the steel plate 2. Accordingly, the conveyor 4 moves toward the rear half portion (the side opposite to the front half portion, that is, the rear side portion in FIG. 1, the same applies hereinafter). Here, each of the connected carts 5 has a length substantially equal to the length of the conveyor 4, and a base 13 provided on the side portion, and a base 13 laid on the base 13. Are movable along the conveyor by two pairs of guides 14 having a length in parallel with each other (see FIG. 4). Note that these guides 14 include a traveling body 15 on which the carriage 5 is fixed on the upper surface, and a rail 16 on which the lower surface is fixed to the base 13 and on which the traveling body 15 travels. The position of the traveling body 15 is always maintained within predetermined accuracy with respect to the rail 16 except for the traveling direction. 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.

Further, on each carriage 5, an end 2a of the steel plate 2 is provided.
A clamp 17 is provided for clamping the upper and lower surfaces. The clamp 17 has a shape that opens toward the conveyor 4 side, and is moved up and down by a clamping cylinder 18 to clamp the steel plate 2 with a lower claw 19 described later; 4 has the lower claw portion 19 which is provided substantially equal to the height of the upper end of the roller 10 and is fixed to the carriage 5 so as to face the upper claw portion 20. A contact portion 21 having a height higher than the lower claw portion 19 by a predetermined amount is provided close to the front side in the transport direction of each clamp 17.
Is pressed by the locking mechanism 6 and is brought into contact with the contact surface 21a of the contact portion 21 on the side of the conveyor 4, whereby positioning in the width direction is performed. In this embodiment, the clamp 17 is connected to each of the carts 5.
Each of the contact portions 21 has a structure in which two or three contact portions are provided, and the contact surfaces 21a of all the contact portions 21 are accurately arranged in the same plane. Therefore, the steel plate 2 moving on the conveyor 4 while being sandwiched by the cart 5
Will always be maintained 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 predetermined rollers 10 in the first half of the conveyor 4 so as to be substantially parallel to the rollers 10 (four in this embodiment). Each locking mechanism 6 is provided on the opposite side of the conveyor 5 of the conveyor 4 and has a protruding piece 22 having a shape protruding above the upper end of each roller 10, and a lower portion than the upper end position of each roller 10. The protruding piece 22 is driven by the motor 23 by using, for example, a rack and pinion.
And a slide mechanism 24 for moving the.

The longitudinal positioning mechanism 7 is provided between the rollers 10 at a substantially intermediate position of the conveyor 4 at right angles to the conveying direction, and as shown in FIG. , A vertically-stroke 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 end of these guide pins 27 and the cylinder 26
And a positioning cylinder 29 provided on the moving part 28 and stroked along the conveying direction of the conveyor 4.

Here, when the cylinder 26 does not advance upward (non-operating state), the upper end of the longitudinal positioning mechanism 7 is located below the upper end of each roller 10 of the conveyor 4. So that it does not interfere with the conveyance of the steel plate 2. When the state in which the tip end of the steel plate 2 is disposed at a predetermined position is detected by a limit switch (not shown) or the like, the conveyance by the conveyor 4 is temporarily stopped by a command from the control device S, and the positioning cylinder 29 is operated. Then, the distal end surface 3 of the reinforcing member 3 (to be described later) provisionally arranged in a state where the distal end portion protrudes from the steel plate 2.
By pressing d, the reinforcing member 3 is pushed back to a predetermined position, whereby positioning of the reinforcing member 3 with respect to the steel plate 2 in the longitudinal direction is performed. By providing the longitudinal positioning mechanism 7 on the leading end side in the transport direction in this manner, it is possible to cope with various works having different longitudinal dimensions of the steel plate 2 and the reinforcing member 3 without changing the setup. 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 each time the longitudinal dimensions of the steel plate 2 and the reinforcing member 3 are different.

As shown in FIG. 6 and the like, the number of the holding machines 8 is one more than the maximum number of the reinforcing members 3 to be welded (six in this embodiment) and 30A to 30F. Mobile device 30A for traversing through 30F
30F and 30F (see FIG. 7), and are 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 support portions 33 installed on the floors on both sides of the conveyor 4 and the upper end portions of the both support portions 33 and separates the support frames 33 by a predetermined amount from the conveyor 4 in the transport direction of the conveyor 4. And a support beam 34 extending orthogonally. A surface 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 traversing 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 traversing guide 35 is, 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 a traversing member 31 is fixed to a traveling body 38 of both traversing guides 35. A support beam 3 is provided above the traversing member 31.
4 is provided with a pinion gear 39 meshing with the rack gear 36 and an NC-controlled traversing servomotor 40 for driving the pinion gear 39. By driving the traversing servomotor 40, the traversing member 31 moves in the direction in which the support beam 34 extends. It is designed to move along. It should be noted that, similarly to the guide 14, the traversing guide 35 is configured such that the position of the traveling body 38 is always maintained within a predetermined accuracy with respect to the rail 37 except for the traveling direction. 3
A plurality of traveling bodies 38 of both transverse guides 35 are fixed to 1 to stabilize the movement.

The anti-support beam 34 of each traversing member 31
The mobile units 30A to 30F are supported on the side surface part 31a via two elevating guides 41 which are parallel to each other so as to be vertically movable. These lifting guides 41
Is a rail 42 fixed to the surface 31a of the traversing member 31 so as to extend up and down, and a traveling body 4 traveling on the rail 42 and fixing each of the mobile units 30A to 30F.
And 3. The lifting guide 41 also has its running body 4 similar to the guide 14 and the traversing guide 35.
3 always keeps its position within a predetermined accuracy except in the running direction with respect to the rail 42. Each of the mobile units 30A to 30F is provided with two lifting guides 41 for stabilizing its movement. Are fixed.

Elevating jacks 44 are provided at the upper portions of the mobile units 30A to 30F so that they can be stroked up and down and can be stopped at arbitrary positions. Are attached to the upper end of the traversing member 31, respectively. By driving these lifting jacks 44, each mobile unit 30A
-30F move up and down with respect to each traversing 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. A holding mechanism 46 for holding the substrate portion 3b of the member 3 from both sides and a pressing mechanism 47 for pressing the reinforcing member 3 from above are provided. Note that, among the mobile units 30A to 30F, the units 30A and 30F located at both ends are slightly different from the units 30B to 30E located in the middle.
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 FIG. 6 and FIG. 9, each of the mobile units 30B to 30E positioned in the middle has a fixed arm fixed to the main body 45 extending from the lower end thereof in the direction opposite to the bogie 5 (left direction in FIG. 6). 48, a reference roller 49 provided at the lower end of the fixed arm 48 and having a vertically extending rotation axis,
A detachable auxiliary roller 50 provided at the upper end of the fixed arm 48 is provided. Here, the reference roller 4
9 is the opposite side of the bogie 5 (the left side in FIGS. 6 and 9)
Is used as a reference for positioning the reinforcing member 3 in the width direction when the front end of the supporting member 3 sandwiches the reinforcing member 3.
Numeral 0 is for further improving the squareness or the like when the height of the reinforcing member 3 is high, and is coaxial with the reference roller 49, and the position of the tip end on the side opposite to the bogie 5 is the same as that of the reference roller 49. It is provided so that it may become a position.

At the lower end of each main body 45 of these mobile units 30B to 30E, a pressing roller 5 is provided so that the height of the reference roller 49 of the mobile unit adjacent to the carriage 5 is substantially the same.
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. I have. Here, the sliding arm 52 is slidably provided on the moving device main 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 opposed thereto constitute a clamping mechanism 46. In the present embodiment, each of the mobile devices 30B to 30E
As shown in FIG. 7, a holding mechanism 46 is provided in two rows in front and rear along the conveying direction of the steel plate 2 and the reinforcing member 3.

Further, 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 bogie 5, as shown in FIG. 10, vertically moving guides 55 extending vertically are provided so as to be parallel to each other. Have been. As described above, these vertical movement guides 55 also include a rail 56 fixed to the mobile device main body 45 so as to extend vertically and a traveling body 57 running on the rail 56. A vertically moving member 58 is fixed to the traveling body 57. And
A jack 59 is provided on the upper part of each of the mobile units 30B to 30E so that the jack 59 can be moved up and down and stopped at an arbitrary position. A protruding end of the jack 59 is attached to a vertical moving member 58, and a vertical moving member 58 is provided. Numeral 58 moves up and down by stroke of the jack 59. In the present embodiment, the vertically moving member 58 is provided with a pressing mechanism 47 located on the first half side of the conveyor 4.

The pressing mechanism 47 includes a vertically extending cylinder 61, a vertically extending supporting member 62 provided in parallel with the cylinder 61, and an intermediate portion attached to the protruding end of the cylinder 61 at one end. Has a swing member 64 supported at a fulcrum 63 of a support member 62, and a roller 65 rotatably supported at 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 to move the roller 65 provided at the other end downward, thereby pressing the reinforcing member 3 from above.

Here, by the pressing by the pressing mechanism 47 and the holding by the holding mechanism 46 described above, the movement of the reinforcing member 3 in the direction other than the transport direction is restricted (that is, the reinforcing member 3 is positioned in the width direction). The sheet is conveyed on the conveyor 4 integrally with the steel sheet 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 30F are inserted.
Of the mobile device 30A, the mobile device 30A located closest to the bogie 5 is
The pressing roller 51, the sliding arm 52, and the hydraulic telescopic cylinder 54 of the holding mechanism 46 are not provided.
The mobile unit 30F located closest to the bogie 5 does not include the fixed arm 48 and the reference roller 49 of the holding mechanism 46 and the pressing mechanism 47 for the same reason as described above. And
These 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.
The lower end of the substrate portion 3b of the reinforcing member 3 pressed against the steel plate 2 by the clamping device 8 is provided on the rear half of the conveyor on the opposite surface side of each of the mobile units 30A to 30F so as to fillet-weld the steel plate 2 from both sides. Have been. Therefore, mobile unit 30 at both ends
A and 30F each do not have an outer one.

In this embodiment, when the carriage 5 holding the steel plate 2 is moved by the drive of the conveyor 4 and reaches a predetermined position, the carriage 5 holds the steel plate 2 in order to perform the above-described positioning and other operations. A carriage clamping mechanism (not shown) for clamping the carriage 5 on the non-movable portion of the conveyor 4 is provided.

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

First, the clamping device 8 provided substantially at the center of the conveyor 4 is set in an appropriate standby state according to the number of the reinforcing members 3, the welding pitch, the height thereof, and the like. That is, first, according to the number of the reinforcing members 3 to be welded to the steel plate 2, the mobile device 30A
The number of use of ~ 30F will be selected. In this embodiment, a case where all the mobile units 30A to 30F are used will be described as an example. (If any of the mobile units 30A to 30F is not used, it does not interfere with the reinforcing member 3 to be conveyed. Position).

Then, the respective mobile units 30A to 30F are driven by the respective traversing servomotors 40 to drive the pinion gear 39, whereby the traversing members 31 are moved along the traversing guide 35.
And the reference roller 49 is arranged at a corresponding position to arrange the reinforcing member 3 at a 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.

The mobile units 30A to 30F can be moved to a proper position with respect to the traversing member 31 via the lifting / lowering guide 41 by operating the lifting / lowering jack 44 and moving forward by a predetermined amount to maintain 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 except for the mobile unit 30F located on the opposite side of the bogie 5 according to the height of the reinforcing member 3 is operated to change the vertical moving member 58 to the reinforcing member. 3 to stop at a predetermined height according to the height or the like.

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

Next, the motor 23 is operated to lock and press the end face of the steel plate 2 on the side opposite to the carriage 5 from the outside with the protruding piece 22 of the locking mechanism 6, and the protruding piece 22 is moved by the slide mechanism 24. Then, the end 2a of the steel plate 2 on the side of the truck 5 is inserted into the clamp 17 in the open state of the truck 5 to make contact with the contact portion 21, thereby positioning the steel plate 2 in the width direction. By operating the clamping cylinder 18 of the clamp 17 in this state, the upper and lower surfaces of the end portion 2 a of the steel plate 2 are clamped by the upper claw portion 20 and the lower claw portion 19. By adopting such a method of positioning the steel plate 2 in the width direction, even in the case of handling the steel plate 2 having different dimensions in the width direction, work such as setup change becomes unnecessary. A plurality of trolleys 5 are connected, and each trolley is
Since a plurality of steel plates 7 are provided, work such as setup change is not required even when handling steel plates 2 having different longitudinal dimensions. That is, if the steel plate 2 has a length equal to or longer than the distance between the two closest clamps 17 out of the plurality of clamps 17, any one of the clamps 17 can be clamped by two or more clamps, and positioning can be performed.

Then, the respective reinforcing members 3 are temporarily arranged on the steel plate 2 in such a state. Here, the provisional arrangement is based on the extension line along the transport direction inside the reference roller 49 and the auxiliary roller 50 of each of the mobile units 30B to 30F of the clamping unit 8 and a state in which the unit is maximally separated from the extension line (that is, the hydraulic telescopic cylinder 54). Between the pressing roller 51 and the auxiliary roller 53 that are in the non-operating state) and on the extension line along the transport direction inside the pressing roller 51 and the auxiliary roller 53, so that the leading end of the substrate portion 3b of each of the reinforcing members 3 is located on the transport direction. In addition, the distal end is protruded within the range of the stroke amount of the positioning cylinder 29 of the longitudinal positioning mechanism 7 (that is, the range that can be pushed back by the longitudinal positioning mechanism 7). Therefore, it is not necessary to arrange the reinforcing member 3 in accordance with the marking, and it is sufficient to arrange the reinforcing member 3 within the relatively rough range as described above. The labor and time required for the work can be greatly reduced. In this embodiment,
Since the T-shaped steel is used as the reinforcing member 3, a temporary jig (not shown) for maintaining the reinforcing member 3 in an almost upright state until the reinforcing member 3 is clamped by the clamping device 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 rollers 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 transported while always maintaining the positioning state in the width direction. That is. And, for example, steel plate 2
Is detected by a limit switch or the like (not shown), and when it is determined that the tip has reached a predetermined position, the drive of the conveyor 4 is temporarily stopped and the bogie is clamped by a bogie clamp mechanism (not shown). To the non-movable part of the conveyor 4. This position is a reference position in the longitudinal direction of the steel plate 2.

In this state, as described above, the distal end face 3d of the reinforcing member 3, which is temporarily disposed with the distal end protruding from the steel plate 2, is moved by moving the cylinder 26 upward by operating the cylinder 26. The positioning cylinder 29 of the longitudinal positioning mechanism 7 pushes the reinforcing member 3 back to a predetermined position (in this embodiment, a position matching the front end of the steel plate) to position the reinforcing member 3 with respect to the steel plate 2 in the longitudinal direction.

Each of the mobile units 30A to 30F of the clamping unit 8
The pressing roller 51 and the auxiliary roller 53 are advanced by operating the hydraulic telescopic cylinder 54 of the clamping mechanism 46, and the substrate portion of the reinforcing member 3 is interposed between the pressing roller 51, the auxiliary roller 53, the reference roller 49, and the auxiliary roller 50. The reinforcing member 3 is positioned in the width direction by holding the vicinity of the tip of 3b from both sides. Then, the cylinder 65 of the pressing mechanism 47 located above is actuated 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 press the reinforcing member 3 against the steel plate 2. .

Then, from the above state, the clamp between the carriage 5 and the non-movable portion of the conveyor 4 by the carriage clamping mechanism (not shown) is released, 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 clamping device 8 is positioned in the width direction by the clamping device 8 and is maintained in the state of being displaced in the longitudinal direction with respect to the steel plate 2 while being transported together with the steel plate 2. Go to
According to this movement, each of the mobile units 30A to 30A of the clamping unit 8
The lower ends of the substrate portions 3b of the reinforcing members 3 are continuously welded from both sides by the welding torches 9 provided on the opposing surface portions of the OF. As described above, since each welding torch 9 is provided at a position close to the leading end side in the transport direction of the holding mechanism 46 and the pressing mechanism 47 of the holding machine 8, the steel sheet 2 and the reinforcing member 3 can be welded with high precision. Will be able to do that. In addition, each reinforcing member 3
Are welded in a state of being pressed against the steel plate 2 by the pressing mechanism 47, so that there is no gap between them and no welding failure due to this is caused.

Then, when the welding of the steel plate 2 and the reinforcing member 3 is completed and they reach the rear half of the conveyor 4, the bogie 5
By disabling the clamping cylinder 18 of the clamp 17, the upper pawl 20 is separated from the lower pawl 19, and the holding of the steel plate 2 is released. When the holding of the steel plate 2 is released, the carriage 5 returns to the initial position to hold the next steel plate 2.

The steel plate 2 to which the reinforcing member 3 has been welded is sent to the next step, for example, assembling a transformer, if necessary. According to the automatic steel plate panel welding apparatus 1 of the present embodiment, As described above, since the steel plate 2 and the reinforcing member 3 can be accurately welded to each other at a right angle or the like, a slit-type slot without a color plate is formed in the transformer, and the transformer is moved in the horizontal direction (longitudinal direction of the reinforcing member). It is possible to adopt a method in which the slit is inserted through the slot of the reinforcing member while the transformer is moved, and the transformer is assembled. Therefore, the transformer assembling work is also facilitated, and the labor and time required for the work can be greatly reduced.

In the present embodiment, since the positioning of each mobile unit of the clamping machine is performed by NC control, the setup change of the reinforcing member to be disposed on the steel plate is input in advance. This can be performed only by reading and executing the program, and the workability and work efficiency are greatly improved.

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

[0047]

As described above in detail, according to the automatic steel plate panel welding apparatus of the present invention, the steel plate is mounted on the conveyor between the trolley and the locking mechanism, and the locking mechanism engages the end face of the steel plate. The steel plate is stopped and pressed to bring the steel plate into contact with the bogie, and the end of the steel plate is sandwiched by the bogie in the state of being positioned in the width direction in this manner. When the conveyor is driven at a position indicated by the arrow, the steel sheet is transported by the conveyor while traveling on the carriage holding the end thereof (that is, while maintaining the positioning state), and reaches a predetermined position. Then, each reinforcing member temporarily disposed on the steel plate is pressed from the front end face by a longitudinal positioning mechanism to position the reinforcing member in the longitudinal direction, and each reinforcing member is clamped from both sides by a clamping machine, and the longitudinal direction thereof is adjusted. When positioning is performed In particular, the reinforcing member is pressed from above so as to press against the steel plate so that no gap or the like is generated at a portion where the reinforcing member abuts with the steel plate, and the steel plate is pressed against the steel plate. It is conveyed while maintaining the positioning state, and the reinforcing member is continuously welded to the steel plate by the welding torch according to this conveyance. Therefore, the steel plate and reinforcement
After positioning in the width and width directions, the positioning
Since the welding is performed while moving while maintaining the condition , the reinforcing member can be automatically welded on the steel plate with good accuracy. Moreover, the clamping machine is welding by welding torch
In the middle, hold the reinforcing member from both sides and push the reinforcing member from above.
The position is fixed when pressed and pressed against the steel plate.
To move the holding machine while holding the reinforcing member
Is less likely to cause a misalignment of the clamper, as a result,
Further restrains the displacement of the sandwiched reinforcing members with respect to the steel plate
it can. Therefore, further attachment of steel plates and reinforcing members
Accuracy can be improved.

Moreover, the steel plate may be mounted so that its longitudinal direction is within the front half of the conveyor and its width direction is within the range in which the carriage and the locking mechanism can be pressed. Can be done easily,
The time required for this operation can be greatly reduced.

Also, there is no need to dispose the reinforcing member in accordance with the marking, and the work can be performed very easily because the tip of the reinforcing member may be slightly protruded from the steel plate and may be arranged in a rough manner so as to fit the opening of the clamping mechanism. However, the time required for this operation can be greatly reduced.

Further, since the steel plate is locked from the outside by the locking mechanism and abutted against the bogie to position the steel plate in the width direction, and in this state, the bogie holds the steel plate. Even when handling different steel plates, work such as setup change becomes unnecessary.

Further, when assembling a transformer to the steel plate and the reinforcing member thus welded, a slit-type slot without a color plate is formed in the transformer so that the transformer can be moved in the horizontal direction (the longitudinal direction of the reinforcing member). It is possible to adopt a method of assembling the transformer by moving the slit of the slot into the front end of the reinforcing member while moving. Therefore, the transformer assembling work is also facilitated, and the labor and time required for the work can be greatly reduced.

[Brief description of the drawings]

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

FIG. 2 is a plan view of a first half of a conveyor of the automatic steel plate panel welding apparatus according to one embodiment of the present invention.

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

FIG. 4 is a cross-sectional view of a bogie of the automatic steel plate panel welding apparatus according to one embodiment of the present invention.

FIG. 5 is a cross-sectional view of a longitudinal positioning mechanism of an 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 a steel plate panel according to an embodiment of the present invention, and is a view of the clamping machine as viewed from a rear side in a conveying direction of a conveyor.

FIG. 7 is a plan view of an automatic welding apparatus for a steel sheet panel according to an embodiment of the present invention, showing a clamping machine thereof.

FIG. 8 is a side view of an automatic welding apparatus for a steel sheet panel according to an embodiment of the present invention, as seen from the X direction shown in FIG. 6 of the clamping machine.

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

FIG. 10 shows an automatic steel plate panel welding apparatus according to one embodiment of the present invention, in which, among the mobile machines of the clamping machines, the mobile machines except those at the left end in FIG. 6 are viewed from the Y direction shown in FIG. FIG.

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

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

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

FIG. 14 is a 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 employed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic steel plate panel welding apparatus 2 Steel plate 2a End part 3 Reinforcement member 3d Tip surface 4 Conveyor 5 Truck 6 Locking mechanism 7 Longitudinal positioning mechanism 8 Clamping machine 9 Welding torch

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ryo Endo 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawa-jima-Harima Heavy Industries, Ltd.Higashiji Technical Center (72) Inventor Nobuo Izuuchi Kudanminami, Chiyoda-ku, Tokyo No. 4-7-15 Ishikawajima System Technology Co., Ltd. (72) Inventor Naofumi Ito 4-7-15 Kudanminami, Chiyoda-ku, Tokyo Ishikawajima System Technology Co., Ltd. (56) References JP-A-59-179481 (JP) JP-A-50-125494 (JP, A) JP-A-49-2296 (JP, A) JP-A-59-19096 (JP, A) JP-A-50-10742 (JP, A) 62-159995 (JP, U) Actually open 57-144948 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B23K 9/00 B23K 9/12 B23K 9/127 B23K 37 / 04

Claims (1)

(57) [Claims] An apparatus for welding a plurality of bar-shaped reinforcing members to a surface of a steel sheet in a mutually parallel state, comprising: a conveyor for mounting the steel sheet and conveying the steel sheet along the welding direction; and a side part of the conveyor. A trolley, which is provided at 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 press the steel plate against the trolley; A longitudinal positioning mechanism that presses the reinforcing member temporarily disposed on the steel plate from a front end surface to position the reinforcing member in a longitudinal direction, and passes along with the steel plate in a state where the reinforcing member is temporarily disposed on the steel plate. A clamping device for clamping the reinforcing member from both sides and positioning the reinforcing member in the width direction, and pressing the reinforcing member from above while pressing the reinforcing member against the steel plate while maintaining the positioning state; The steel A welding torch for continuously welding the reinforcing member pressed into contact with the plate to the steel plate in accordance with the conveyance of the conveyor , wherein the holding device is configured to perform the reinforcement during welding by the welding torch.
Hold the member from both sides and press the reinforcing member from above to
When the conveyor is pressed against the steel sheet,
An automatic steel plate panel welding apparatus characterized in that the position is fixed in the direction .