CN219703979U - Assembly welding equipment and assembly welding system - Google Patents

Abstract

The utility model provides a pair of welding equipment and a pair of welding system, wherein the pair of welding equipment comprises a movable portal frame, a part to be welded positioning bin and a robot group, and the movable portal frame comprises a portal frame and a traveling drive connected at two ends of the portal frame to drive the movable portal frame to move along a track; the positioning bin of the to-be-welded piece is arranged on the movable portal frame to accommodate the to-be-welded piece; the robot group is installed on the mobile portal frame, and the robot group comprises a carrying robot for carrying the to-be-welded piece from the to-be-welded piece positioning bin and a welding robot for welding the to-be-welded piece. The utility model can effectively improve the working efficiency and the safety, so that the partition plates and the rib plates of the box girder can be automatically welded, and the automatic production of the box girder is realized.

Description

Assembly welding equipment and assembly welding system

Technical Field

The utility model relates to the technical field of welding, in particular to a pair of welding equipment and a pair of welding system.

Background

The box girder mainly comprises a cover plate, a web plate, a partition plate, a rib plate, a bottom plate and the like. The box girder has the characteristics of strong bearing capacity, strong structural stability and the like, and is widely applied to the fields of engineering machinery and hoisting and transporting machinery.

Currently, manual work is commonly used in the industry for assembly and welding of internal partitions and ribs of box beams. The mode has low production efficiency, the positioning precision and the welding seam quality are completely dependent on the experience of operators, the precision is poor, the operation intensity is high, the operation efficiency is low and the mode has certain danger.

In order to improve the operation efficiency and the safety, a new welding device needs to be developed.

Disclosure of Invention

The utility model aims to solve the problem of low welding efficiency of a box Liang Jinban and a partition plate. In view of the foregoing, embodiments of the present utility model are directed to providing a pair of welding apparatuses, which can effectively improve the working efficiency and the safety.

In order to solve the problems, in a first aspect, the utility model provides a pair of welding equipment, which comprises a movable portal frame, a to-be-welded piece positioning bin and a robot group, wherein the movable portal frame comprises a portal frame and a traveling drive connected to two ends of the portal frame to drive the movable portal frame to move along a track; the positioning bin of the to-be-welded piece is arranged on the movable portal frame to accommodate the to-be-welded piece; the robot group is installed on the mobile portal frame, and the robot group comprises a carrying robot for carrying the to-be-welded piece from the to-be-welded piece positioning bin and a welding robot for welding the to-be-welded piece.

In yet another embodiment, the travel drive employs a servo travel mechanism.

In yet another embodiment, the positioning bin for the workpieces to be welded comprises a primary positioning table for accommodating the workpieces to be welded and a secondary positioning table for accommodating a plurality of the workpieces to be welded, wherein the secondary positioning table is used for positioning the workpieces to be welded transferred from the primary positioning table again.

In yet another embodiment, the primary positioning stage includes a first rough positioning stage for receiving a first material in the part to be welded; the first rough positioning platform comprises a plate-shaped first positioning platform main body and a plurality of first stops which are arranged on the first positioning platform main body and simultaneously limit the movement of a first material from the transverse direction and the longitudinal direction.

In yet another embodiment, the primary positioning table includes a second rough positioning platform for accommodating a second material in the workpiece to be welded, and the second rough positioning platform includes a plurality of second bar-shaped stoppers arranged in parallel and at intervals, and third bar-shaped stoppers disposed at two ends of the second bar-shaped stoppers.

In yet another embodiment, the secondary positioning stage includes a plate-like body, and opposite ends of the plate-like body in a first direction are not equal in size from the moving gantry.

In yet another embodiment, a strip-shaped fourth stop and a strip-shaped fifth stop which are vertically intersected are arranged on the workbench surface of the secondary positioning table, wherein the fifth stop is located at one end, close to the supporting surface of the secondary positioning table, of the workbench surface of the secondary positioning table in the first direction, and the fourth stop is located at one end, in the second direction, of the secondary positioning table.

In yet another embodiment, a sixth stop and a receiving groove surrounding the sixth stop are provided on the table surface of the secondary positioning table to match the second material having the center hole, and one end of the receiving groove in the first direction is stopped at the fifth stop, and one end of the receiving groove in the second direction is stopped at the fourth stop.

In yet another embodiment, the transfer robot has an electromagnetic gripper and/or the pair of welding apparatuses comprises a hold-down mechanism comprising a laterally forced lateral hold-down assembly and/or a vertically forced vertical hold-down assembly.

The second aspect of the utility model provides a pairing welding system, which comprises the pairing welding equipment and two rails arranged in parallel, wherein the travelling drive of the mobile portal frame rides on the rails.

Through the arrangement, the movable portal frame is used as an external shaft of the robot and is combined with the carrying robot and the welding robot, when one piece to be welded is welded, the movable portal frame can move along the extending direction of the length of the track matched with the traveling drive under the driving of the traveling drive, and when the movable portal frame moves to a set position, the carrying robot and the welding robot weld the next piece to be welded, and the self-determined welding is completed by analogy; the automatic assembling and welding device can automatically assemble and weld the rib plates and the partition plates inside the box girder, achieves full-automatic production of the box girder, effectively improves productivity and improves safety.

Drawings

Fig. 1 is a schematic structural diagram of a pair of welding apparatuses according to an embodiment of the present utility model.

Fig. 2 is a partial enlarged view of fig. 1.

Fig. 3 is a schematic structural diagram of a pair of welding systems according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

For a better understanding of the present utility model, the present utility model will be described below with reference to specific examples and drawings. In the present utility model, "lateral" refers to the length extension direction of the track 200; "longitudinal" refers to the extension length direction of the main beam 111; "vertical" refers to a direction that points vertically to the support surface of the mobile gantry 1, typically the ground, with the "first direction" and the "second direction" being perpendicular.

Referring to fig. 1-3, in a first aspect, the present utility model provides a pair of welding apparatus,

the pair of welding apparatuses includes: the movable portal frame 1, the workpiece positioning bin 2 to be welded and the robot group 3 the movable portal frame 1 comprises a portal frame 11 and a traveling drive 12 connected to two ends of the portal frame 11 to drive the movable portal frame 1 to move along the track 200; the to-be-welded piece positioning bin 2 is arranged on the movable portal frame 1 to accommodate to-be-welded pieces; the robot group 3 is mounted on the moving gantry 1, and the robot group 3 includes a transfer robot 31 that transfers the workpiece to be welded from the workpiece positioning magazine 2 and a welding robot 32 for performing a welding operation.

In the utility model, the movable portal frame is used as an external shaft of the robot and is combined with the carrying robot and the welding robot, when one piece to be welded is welded, the movable portal frame can move along the extending direction of the length of the track matched with the walking drive under the driving of the walking drive, and when the movable portal frame moves to a set position, the carrying robot and the welding robot weld the next piece to be welded, and the self-determined welding is completed by analogy; the assembly welding equipment can complete automatic assembly welding of the rib plates and the partition plates in the box girder, realizes full-automatic production of the box girder, effectively improves the productivity and simultaneously improves the safety.

In yet another embodiment, the travel drive 12 includes a servo travel mechanism. By adopting the servo traveling mechanism, the servo positioning can be performed, and the moving gantry 1 moves according to the set track under the drive of the traveling drive 12, so that high-precision motion control can be realized.

In still another embodiment, a pair of welding robots 32 are provided on both lateral sides of the transfer robot 31 to improve welding speed and welding quality. For example, in welding the separator 405 shown in fig. 3, double-sided welding is generally required, and by providing a pair of welding robots 32, welding can be performed simultaneously from both sides of the separator 405, so that welding deformation of the separator 405 can be reduced.

In yet another embodiment, the positioning bin 2 for workpieces to be welded includes a primary positioning stage 21 for accommodating the workpieces to be welded and a secondary positioning stage 22, wherein the primary positioning stage 21 is used for accommodating a plurality of workpieces to be welded, and the secondary positioning stage 22 is used for positioning the workpieces to be welded transferred from the primary positioning stage 21 again. Referring to fig. 1, the positioning bin 2 for workpieces to be welded can accommodate a plurality of workpieces to be welded at the same time, the secondary positioning table 22 accommodates one workpiece to be welded at a time, during welding, a workpiece to be welded is firstly conveyed from the positioning bin 2 for workpieces to be welded to the working table of the secondary positioning table 22 by the conveying robot 31, then self-positioning is performed under the action of gravity, and then the conveying robot 31 grabs the workpiece to be welded from the secondary positioning table 22 to a position to be welded again, and welding is completed under the action of the welding robot 32.

In yet another embodiment, the primary positioning stage 21 includes a first rough positioning stage 211 for receiving a first material in the part to be welded; the first rough positioning stage 211 includes a plate-shaped first positioning stage main body 2111 and a plurality of first stoppers 2112 provided on the first positioning stage main body 2111 to simultaneously define a first material movement from the lateral direction and the longitudinal direction. Referring to fig. 1 and 3, the first rough-positioning platform 211 is used for storing a first material to be welded, the first stopper 2112 is a plurality of bars mounted on the first positioning platform body 2111 in a vertical direction, and the plurality of first stoppers 2112 are arranged according to an outer contour shape of the partition 405. At least two of the plurality of first stops 2112 laterally constrain the bulkhead 405 to be welded and at least two longitudinally constrain the bulkhead 405 to be welded.

In yet another embodiment, the primary positioning table 21 includes a second rough positioning platform 212 for accommodating a second material in the workpiece to be welded, and the second rough positioning platform 212 includes a plurality of strip-shaped second stoppers 2121 arranged in parallel and spaced apart, and strip-shaped third stoppers 2122 disposed at two ends of the second stoppers 2121. Referring to fig. 1 and 3, the second material is a rib plate 404, and the rib plate 404 has two plate structures perpendicular to each other, for example, the rib plate 404 is angle steel or T-steel, when the rib plate 404 is placed on the second rough-fixing platform 212, a plurality of rib plates 404 are arranged in a row side by side along the longitudinal direction, and due to the gap between any two adjacent second stops 2121, one of the two perpendicular plate structures of the rib plate 404 is vertically inserted into the gap, and the other rib plate structure is supported on the second stop 2121 and is parallel to the working surface of the second rough-fixing platform 212.

In yet another embodiment, the secondary positioning table 22 includes a plate-shaped body 220, and two opposite ends of the plate-shaped body 220 in the first direction are different in size from the moving gantry 1. Referring to fig. 2, the secondary positioning table 22 includes a leg between the plate-shaped body 220 and the moving gantry 1, and the table surface of the secondary positioning table 22 for supporting the workpiece to be welded is located on a side of the plate-shaped body 220 away from the leg, the leg includes a high leg 226 and a low leg 225, and the low leg 225 is close to the transfer robot 31 in the first direction. By the arrangement, when the second material is automatically positioned under the action of gravity and then is closer to the transfer robot 31, corresponding work can be completed under the condition that the arm of the transfer robot 31 is not lengthened, and cost and space can be saved.

In yet another embodiment, a strip fourth stop 221 and a strip fifth stop 222 are disposed on the table surface of the secondary positioning table 22, where the fifth stop 222 is located at an end of the table surface of the secondary positioning table 22 near the supporting surface of the secondary positioning table 22 in the first direction, and the fourth stop 221 is located at an end of the secondary positioning table 22 in the second direction.

In still another embodiment, a sixth stopper 223 and a receiving groove 224 surrounding the sixth stopper 223 are provided on the table surface of the secondary positioning table 22 to match the second material having the center hole, wherein the sixth stopper 223 is for stopping the second material from the center hole side of the second material and guiding the second material, and one end of the receiving groove 224 in the first direction is stopped at the fifth stopper 222 and one end of the receiving groove 224 in the second direction is stopped at the fourth stopper 221.

In yet another embodiment, the transfer robot 31 has an electromagnetic gripper 311. According to the utility model, the primary positioning table 21 and the secondary positioning table 22 are arranged on the movable portal frame 1, and the carrying robot 31 adopts the electromagnetic gripper 311, so that the working efficiency and the blanking and initial placement fault tolerance of the workpieces to be welded are effectively improved.

In yet another embodiment, the assembly welding apparatus includes a hold-down mechanism including a laterally-applied lateral hold-down assembly 91 and/or a vertically-applied vertical hold-down assembly 92.

The welding piece is to be flattened from the transverse direction by arranging the transverse compression assembly 91, and referring to fig. 3, the welding piece comprises a box beam left side plate 401, a box beam right side plate 402 and a box beam bottom plate 403 which are welded with a partition plate 405, and the box beam left side plate 401 and the box beam right side plate 402 can be flattened by arranging the transverse compression assembly 91. The vertical compression assembly 92 is arranged to level the box girder bottom plate 403, so that the flatness of the box girder left side plate 401, the box girder right side plate 402 and the box girder bottom plate 403 is guaranteed, the automatic assembly positioning precision is improved, and the welding quality can be improved.

In yet another embodiment, the lateral hold-down assembly 91 and/or the vertically forced vertical hold-down assembly 92 employ pneumatic hold-down rollers.

In yet another embodiment, the mast 11 comprises a main girder 111 and a connecting girder 112, the two connecting girders 112 being respectively located at both ends of the main girder 111 in the lateral direction, the connecting girder 112 being located between the main girder 111 and the travel drive 12 in the vertical direction.

In the embodiment of the present utility model, the main beam 111 may further be provided with a wire barrel 5 and a wire hanger 6 for feeding the welding wire to the welding robot 32.

In yet another embodiment, the first control cabinet 7 of the transfer robot 31 for control is also mounted on the main beam 111.

In a further embodiment, a second control cabinet 8 for controlling the welding robot 32 is also mounted on the main beam 111.

In yet another embodiment, the assembly welding apparatus comprises a drag chain 13 for pulling the cable, one end of the drag chain 13 being connected to the mobile gantry 1 and the other end being connected to the power supply.

A second aspect of the present utility model provides a pair of welding systems comprising the pair of welding apparatus described above, and further comprising two parallel arranged rails 200, the travelling drive 12 of the mobile gantry 1 riding on the rails 200.

In yet another embodiment, the assembly welding system includes a box beam 400 and a fastening device 300 that secures the box beam 400. The plurality of fastening devices 300 are uniformly distributed and pressed on both lateral ends of the bottom plate 403 of the box girder 400 in the length direction of the box girder.

In this embodiment, the partitions 405 are arranged at intervals along the length direction of the box girder 400, and a rib plate 404 is disposed between two adjacent partitions 405, and the rib plate adopts angle steel. The spacer 405 includes a plate-shaped spacer body having a central aperture.

For a more detailed description of the present utility model, a simple description of a welding process for the box beam 400 is described below: referring to fig. 3, the box girder 400 includes a box girder bottom plate 403 extending in a longitudinal direction, a box girder left side plate 401 and a box girder right side plate 402 disposed around both sides of the box girder bottom plate 403 in a transverse direction, and a spacer 405 disposed at intervals in the longitudinal direction and a rib plate 404 disposed between two adjacent spacer 405.

Before production, a partition plate 405 is arranged on the first rough-fixing platform 211 and the rib plate 404 is arranged on the second rough-fixing platform 212, a welding wire barrel 5 is arranged at the position shown in fig. 1, a welding gun 321 of a welding robot 32 supplies welding wires, and the welding wire barrel 5 ensures hanging of the welding wires in the operation of the assembly welding equipment; the box beam left side plate 401, the box beam right side plate 402 and the box beam bottom plate 403 are symmetrically arranged on the bearing tools arranged in the middle of the track 200 along the center of the movable portal frame 1; the traveling drive 12 drives the movable portal frame 1 to be positioned at the initial position of the box beam 400, the pressing mechanism stretches out, the movable portal frame 1 travels along the track 200, and the left side plate 401, the right side plate 402 and the bottom plate 403 of the box beam are pressed in a rolling manner along the length direction of the box beam 400, so that the flatness is ensured.

After the rolling compaction is finished, the travelling drive 12 drives the movable portal frame 1 to travel to the line drawing position positioned on the partition plate 405 and the rib plate 404, the transfer robot 31 and the electromagnetic gripper 311 act to take out the first material in the first rough positioning platform 211, namely the partition plate 405 before welding or the second material in the second rough positioning platform 212, namely the rib plate 404 before welding, and the first material or the second material is placed on the secondary positioning platform 22 to perform secondary positioning, and the secondary positioning is realized by the gravity of the welding part; the secondarily positioned welded piece is taken out and placed at the corresponding position of the box beam 400 through the carrying robot 31 and the electromagnetic gripper 311, the welding robot 32 is matched with the welding fixing … …, and the above process is repeated until all rib plates 404 and partition plates 405 are welded.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. In addition, the character "/" herein generally indicates that the associated object is an "or" relationship, but may also indicate an "and/or" relationship, and may be understood by referring to the context.

In the present utility model, "a plurality of" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c or a-b-c, wherein a, b, c can be single or multiple.

It should be understood that, in various embodiments of the present utility model, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present utility model.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is to be construed as including any modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A pair of welding apparatus, comprising:

the movable portal frame (1) comprises a portal frame (11) and a traveling drive (12) connected to two ends of the portal frame (11) to drive the movable portal frame (1) to travel along a track (200);

the to-be-welded piece positioning bin (2) is arranged on the movable portal frame (1) to accommodate to-be-welded pieces;

the robot group (3) is installed on the movable portal frame (1), and the robot group (3) comprises a carrying robot (31) for carrying the to-be-welded piece from the to-be-welded piece positioning bin (2) and a welding robot (32) for welding the to-be-welded piece.

2. The assembly welding apparatus according to claim 1, wherein the travel drive (12) employs a servo travel mechanism.

3. Assembly welding device according to claim 1, characterized in that the positioning magazine (2) for the pieces to be welded comprises a primary positioning table (21) for accommodating the pieces to be welded and a secondary positioning table (22), wherein the primary positioning table (21) is intended for accommodating a plurality of pieces to be welded and the secondary positioning table (22) is intended for repositioning the pieces to be welded transported from the primary positioning table (21).

4. A pairing welding apparatus according to claim 3, wherein the primary positioning station (21) comprises a first rough positioning station (211) for containing a first material in the pieces to be welded; the first rough positioning platform (211) comprises a plate-shaped first positioning platform main body (2111) and a plurality of first stops (2112) which are arranged on the first positioning platform main body (2111) and used for limiting the movement of a first material from the transverse direction and the longitudinal direction at the same time.

5. A pairing welding apparatus according to claim 3, wherein the primary positioning stage (21) comprises a second rough positioning stage (212) for receiving a second material in the piece to be welded, the second rough positioning stage (212) comprising a plurality of parallel spaced apart strip-shaped second stops (2121) and strip-shaped third stops (2122) arranged at both ends of the second stops (2121).

6. A pairing welding apparatus according to claim 3, wherein the secondary positioning stage (22) comprises a plate-like body (220), the opposite ends of the plate-like body (220) being of unequal size from the moving gantry (1) in the first direction.

7. The assembly welding equipment according to claim 6, wherein a strip-shaped fourth stop (221) and a strip-shaped fifth stop (222) which are vertically intersected are arranged on the working surface of the secondary positioning table (22), wherein the fifth stop (222) is positioned at one end, close to the supporting surface of the secondary positioning table (22), of the working surface of the secondary positioning table (22) in the first direction, and the fourth stop (221) is positioned at one end, in the second direction, of the secondary positioning table (22).

8. The assembly welding apparatus according to claim 7, wherein a sixth stopper (223) and a receiving groove (224) surrounding the outside of the sixth stopper (223) are provided on the table top of the secondary positioning table (22) to match the second material having the center hole, and one end of the receiving groove (224) in the first direction is stopped at the fifth stopper (222), and one end of the receiving groove (224) in the second direction is stopped at the fourth stopper (221).

9. The assembly welding apparatus according to claim 1, characterized in that the handling robot (31) has an electromagnetic gripper (311) and/or that the assembly welding apparatus comprises a hold-down mechanism comprising a laterally forced lateral hold-down assembly (91) and/or a vertically forced vertical hold-down assembly (92).

10. A pairing welding system, characterized by comprising a pairing welding device according to any one of claims 1-9 and two parallel arranged tracks (200), the travelling drive (12) of the mobile portal frame (1) riding on the tracks (200).