Cooling device and method for heavy-load workshop box type steel structure welding

Abstract

The invention relates to the technical field of steel structure welding, in particular to a cooling device for heavy load workshop box type steel structure welding and a method thereof.The cooling device comprises a table body, a water storage tank is mounted in a mounting cavity, a water inlet pipe is mounted on the water storage tank, a first hollow rod is mounted on the water inlet pipe, and a first piston rod is inserted into the first hollow rod; a water outlet pipe is mounted on the first hollow rod; the water outlet pipe is provided with a first water collecting box, the table body is provided with a plurality of cooling pipes, one end of each cooling pipe is fixedly provided with a second water collecting box, and the first piston rod is controlled by a driving assembly to move transversely in a reciprocating mode. When a steel structure is welded, the steel structure can be placed on the multiple cooling pipes, then the driving assembly controls the cooling liquid in the water storage tank to be intermittently introduced into the multiple cooling pipes, circulation is achieved, in the circulation process of the cooling liquid, heat generated by a welding part can be absorbed, and the rapid cooling effect is achieved; the cooling effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure welding, and in particular to a cooling device and a method thereof for welding a box-type steel structure in a heavy-duty workshop. Background Art

[0002] In order to facilitate the support of buildings, on-site spliced ​​box-type steel structures are often used as reinforcement tools at construction sites. These steel structures need to be welded by welding devices. During the welding process, a large amount of heat will be generated at the welding parts. If they cannot be cooled in time and effectively, it is easy to cause cracks, deformation and other quality problems in the welding area, affecting the strength and stability of the steel structure. Therefore, it is necessary to cool the welding parts of the steel structure by cooling devices.

[0003] When existing cooling devices cool the welding parts of steel structures, most of them use air cooling, that is, blowing air towards the welding parts of the steel structure. This method has low cooling efficiency, and during the air cooling process, some waste chips generated during the welding process may be blown everywhere, making it difficult to clean. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art. When cooling the welding parts of steel structures, the existing cooling devices mostly use air cooling, that is, blowing air towards the welding parts of the steel structure. The cooling efficiency of this method is low, and during the air cooling process, some of the waste chips generated during the welding process may be blown everywhere, making it difficult to clean. A cooling device and method for welding box-type steel structures in heavy-duty workshops are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cooling device for welding box-type steel structures in a heavy-duty workshop comprises a platform, a welding mechanical arm is fixedly installed on the back of the platform, an installation cavity is opened in the platform, a through hole connected to the installation cavity is opened on the back of the platform, a door cover is rotatably installed in the through hole, a water storage tank is fixedly installed in the installation cavity, the water storage tank is filled with coolant, a water inlet pipe connected to the water storage tank is fixedly installed on the side wall of the water storage tank, a first hollow rod with one end designed as a closed end is fixedly installed on one end of the water inlet pipe located outside the water storage tank, a first piston rod is inserted in a sliding seal in the first hollow rod, a water outlet pipe is fixedly installed on the upper surface of the first hollow rod, and a first one-way valve is provided in both the water inlet pipe and the water outlet pipe;

[0007] A first water collecting box connected to the water outlet pipe is fixedly installed on the top of the water outlet pipe, and a plurality of water outlets are provided on the upper surface of the first water collecting box. A plurality of U-shaped cooling pipes are fixedly installed on the upper surface of the platform body, and both ends of the cooling pipes are inserted into the installation cavity. One end of the plurality of cooling pipes respectively covers a plurality of water outlets, and a second water collecting box connected to the water outlet pipe is fixedly installed on the other end. The second water collecting box is connected to the water storage tank through a return pipe, and the first piston rod is controlled to move back and forth horizontally through a driving assembly.

[0008] Preferably, the drive assembly includes a drive motor fixedly mounted on the side wall of the platform, a reciprocating screw and a slide plate threadedly sleeved on the reciprocating screw, the output shaft of the drive motor passes through the mounting cavity and is fixedly connected to the reciprocating screw, and one end of the first piston rod is fixedly connected to the surface of the slide plate.

[0009] Preferably, an L-shaped mounting plate is fixedly mounted on the upper surface of the platform, a cavity is defined in the mounting plate, a mist nozzle connected to the cavity is fixedly mounted on the lower surface of the mounting plate, and a water supply assembly is provided in the mounting cavity for spraying the coolant in the water tank in the form of mist from the mist nozzle.

[0010] Preferably, the water supply assembly includes a liquid inlet pipe, a liquid outlet pipe, a second hollow rod with a closed end, and a second piston rod with a sliding seal inserted in the second hollow rod. The liquid inlet pipe is fixedly mounted on the side wall of the water tank and is connected to the inside of the water tank. The end of the liquid inlet pipe located outside the water tank is fixedly connected to the closed end of the second hollow rod. One end of the second piston rod is fixedly connected to the surface of the slide plate. Both ends of the liquid outlet pipe are fixedly connected to the second hollow rod and the mounting plate, and are respectively connected to the inside of the second hollow rod and the cavity. A second one-way valve is provided in both the liquid inlet pipe and the liquid outlet pipe.

[0011] Preferably, a sliding opening is provided on the surface of one end of the cooling pipe connected to the first water collecting box, and a baffle for covering the water outlet is horizontally slidably inserted in the sliding opening, and the baffle is controlled to move laterally by a pressing component.

[0012] Preferably, the pressing assembly includes an inclined plate fixedly mounted at one end of the baffle, an inclined opening opened on the surface of the inclined plate, an I-shaped block slidably arranged in the inclined opening, and an L-shaped connecting plate fixedly mounted on the surface of the I-shaped block, and the plurality of connecting plates are respectively located directly below the plurality of cooling pipes, a force-bearing rod is fixedly mounted on the upper surface of the connecting plate, a through opening is vertically opened on the upper surface of the cooling pipe and passes through the top of the platform body, and the plurality of force-bearing rods are respectively vertically slidably and sealingly inserted in the through opening, and are connected to the wall of the installation cavity through a telescopic component.

[0013] Preferably, the telescopic component comprises a telescopic spring sleeved on the force-bearing rod, and two ends of the telescopic spring are respectively fixedly connected to the upper surface of the connecting plate and the top wall of the installation cavity.

[0014] Preferably, a display component is provided in the water tank, and the display component is used to display the horizontal height of the cooling liquid in the water tank outside the platform.

[0015] Preferably, the display component includes a U-shaped water pipe, a first mounting port is opened on the surface of the water tank, a second mounting port is opened on the surface of the platform, the first mounting port and the second mounting port are located on the same horizontal line, the water pipe is fixedly installed in the first mounting port and the second mounting port, the two ends of the water pipe are respectively located in the water tank and outside the platform, a water inlet is opened horizontally on the bottom surface of the water pipe located in the water tank, and the water pipe is made of transparent material.

[0016] A method for a cooling device for welding box-type steel structures in a heavy-duty workshop. First, a steel structure to be welded is placed on the upper surface of a plurality of cooling pipes. After welding is completed, a first piston rod can be controlled by a driving component to move back and forth laterally. During the movement, the volume in the first hollow rod will continuously change from small to large and then from large to small. When the volume in the first hollow rod increases, the pressure decreases, and the coolant in the water storage tank will enter the first hollow rod from the water inlet pipe. When the volume in the first hollow rod decreases, the pressure increases, and the coolant in the first hollow rod will enter the first water collecting box from the water outlet pipe, and then enter the plurality of cooling pipes. The coolant will flow in the cooling pipe, and then enter the second water collecting box, and finally enter the water storage tank from the return pipe, thereby achieving a water circulation effect. When the coolant circulates in the cooling pipe, it can absorb the heat generated by the welding part, thereby achieving a rapid cooling effect.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When welding steel structures, the steel structures can be placed on multiple cooling pipes, and then the coolant in the water tank can be controlled by the drive component to intermittently pass into the multiple cooling pipes and circulate. During the circulation process, the coolant can absorb the heat generated by the welding part, achieving a rapid cooling effect with good cooling effect;

[0019] 2. When the coolant circulates in the cooling pipe, part of the coolant in the water tank will be sprayed out from the mist nozzle in the form of mist. The mist coolant will also cool the welding station that is not in contact with the cooling pipe, thereby accelerating the overall cooling efficiency of the welding station.

[0020] 3. With the cooperation between the pressing assembly and the baffle, when the steel structure is placed on multiple cooling pipes, the cooling pipes not in contact with the steel structure will be in a closed state, while the cooling pipes in contact with the steel structure will be in an open state, that is, the cooling pipes not in contact with the steel structure will not be filled with coolant, thus avoiding the coolant from doing useless work and improving the utilization rate of the coolant;

[0021] 4. The operator can quickly know the height of the coolant level in the water tank through the display component outside the platform, so as to judge whether coolant needs to be added. There is no need to open the door cover to observe the amount of coolant in the water tank, so as to avoid the failure to cool the welding part normally due to untimely addition of coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0023] Figure 2 It is a top view of the three-dimensional structure of the present invention;

[0024] Figure 3 It is a side view stereoscopic structural schematic diagram of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the front part of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the bottom-up part of the present invention;

[0027] Figure 6 It is a schematic diagram of a partial three-dimensional structure of a plurality of cooling tubes, a reciprocating screw rod, a first hollow rod and a second hollow rod in the present invention;

[0028] Figure 7 It is a partial three-dimensional structural schematic diagram of the baffle and the pressing assembly in the present invention;

[0029] Figure 8 It is a partial three-dimensional structural schematic diagram of the first water collecting box in the present invention;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the water pipe in the present invention;

[0031] Fig.10 for Figure 1 The enlarged structural diagram at A in the middle;

[0032] Fig.11 for Figure 4 The enlarged structural diagram at B in the middle;

[0033] Fig.12 for Figure 5 Enlarged structural diagram at point C in the middle.

[0034] In the figure: 1 body, 2 welding robot arm, 3 installation cavity, 4 door cover, 5 water storage tank, 6 water inlet, 7 water inlet pipe, 8 first hollow rod, 9 first piston rod, 10 water outlet pipe, 11 first water collecting box, 12 cooling pipe, 13 second water collecting box, 14 return pipe, 15 drive motor, 16 reciprocating screw rod, 17 slide plate, 18 placement plate, 19 mist nozzle, 20 liquid inlet pipe, 21 liquid outlet pipe, 22 second hollow rod, 23 second piston rod, 24 sliding mouth, 25 baffle, 26 inclined plate, 27 inclined mouth, 28 I-shaped block, 29 connecting plate, 30 force rod, 31 telescopic spring, 32 water pipe. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figure 1-Figure 12 A cooling device for welding box-type steel structures in heavy-load workshops comprises a platform 1, a welding robot arm 2 is fixedly installed on the back of the platform 1, an installation cavity 3 is opened in the platform 1, a through port connected to the installation cavity 3 is opened on the back of the platform 1, a door cover 4 is rotatably installed in the through port, a water tank 5 is fixedly installed in the installation cavity 3, the water tank 5 is filled with coolant, a water inlet pipe 7 connected to the water tank 5 is fixedly installed on the side wall of the water tank 5, a first hollow rod 8 with one end designed to be closed is fixedly installed on one end of the water inlet pipe 7 located outside the water tank 5, a first piston rod 9 is inserted in the first hollow rod 8 in a sliding seal, a water outlet pipe 10 is fixedly installed on the upper surface of the first hollow rod 8, and a first one-way valve is provided in both the water inlet pipe 7 and the water outlet pipe 10.

[0037] The top of the water outlet pipe 10 is fixedly installed with a first water collecting box 11 connected to the water outlet pipe 10. The conducting direction of the first one-way valve in the water inlet pipe 7 is from the water storage tank 5 to the first hollow rod 8. The conducting direction of the first one-way valve in the water outlet pipe 10 is from the first hollow rod 8 to the first water collecting box 11. A plurality of water outlets are opened on the upper surface of the first water collecting box 11. A plurality of U-shaped cooling pipes 12 are fixedly installed on the upper surface of the platform 1. Both ends of the cooling pipes 12 are inserted into the installation cavity 3. One end of the plurality of cooling pipes 12 respectively covers a plurality of water outlets. The first piston rod 9 is connected to the water storage tank 5 through a return pipe 14. The first piston rod 9 is controlled to move back and forth laterally through a driving assembly. The driving assembly includes a driving motor 15 fixedly mounted on the side wall of the platform 1, a reciprocating screw 16 and a slide plate 17 threadedly sleeved on the reciprocating screw 16. The output shaft of the driving motor 15 penetrates into the mounting cavity 3 and is fixedly connected to the reciprocating screw 16. One end of the first piston rod 9 is fixedly connected to the surface of the slide plate 17.

[0038] First, place the steel structure to be welded on the upper surface of multiple cooling tubes 12. After welding, the drive motor 15 can be started. The output shaft of the drive motor 15 will drive the reciprocating screw 16 to rotate, and the slide plate 17 threadedly sleeved on the reciprocating screw 16 will drive the first piston rod 9 to move back and forth laterally. During the movement, the volume inside the first hollow rod 8 will continue to change from small to large, and then from large to small. When the volume inside the first hollow rod 8 increases, the pressure decreases, and the coolant in the water tank 5 will enter the first hollow rod 8 from the water inlet pipe 7. A hollow rod 8 is formed, and when the volume inside the first hollow rod 8 becomes smaller, the pressure will increase, and the coolant in the first hollow rod 8 will enter the first water collecting box 11 from the water outlet pipe 10, and then enter the multiple cooling pipes 12. The coolant will flow in the cooling pipe 12, and then enter the second water collecting box 13, and finally enter the water storage tank 5 from the return pipe 14, thereby achieving a water circulation effect. When the coolant circulates in the cooling pipe 12, it can absorb the heat generated by the welding part, achieving a rapid cooling effect, and the cooling effect is good.

[0039] An L-shaped mounting plate 18 is fixedly mounted on the upper surface of the platform 1, a cavity is opened in the mounting plate 18, a mist nozzle 19 connected to the cavity is fixedly mounted on the lower surface of the mounting plate 18, a water supply assembly for spraying the coolant in the water storage tank 5 from the mist nozzle 19 in a mist form is arranged in the mounting cavity 3, the water supply assembly includes a liquid inlet pipe 20, a liquid outlet pipe 21, a second hollow rod 22 with a closed end and a second piston rod 23 inserted in the second hollow rod 22 with a sliding seal, the liquid inlet pipe 20 is fixedly mounted on the side wall of the water storage tank 5 and is connected to the water storage tank 5, the liquid inlet pipe One end of 20 located outside the water tank 5 is fixedly connected to the closed end of the second hollow rod 22, one end of the second piston rod 23 is fixedly connected to the surface of the slide plate 17, and both ends of the liquid outlet pipe 21 are fixedly connected to the second hollow rod 22 and the placement plate 18, respectively, and are respectively connected to the second hollow rod 22 and the cavity, and a second one-way valve is provided in the liquid inlet pipe 20 and the liquid outlet pipe 21. The conducting direction of the second one-way valve in the liquid inlet pipe 20 is from the water tank 5 to the second hollow rod 22, and the conducting direction of the second one-way valve in the liquid outlet pipe 21 is from the second hollow rod 22 to the cavity.

[0040] When the slide plate 17 moves laterally back and forth, it will carry the second piston rod 23 to move laterally back and forth in the second hollow rod 22, and the volume in the second hollow rod 22 will continuously change from small to large and then from large to small. When the volume in the second hollow rod 22 increases, the pressure decreases, and the coolant in the water tank 5 will enter the second hollow rod 22 from the liquid inlet pipe 20. When the volume in the second hollow rod 22 decreases, the pressure increases, and the coolant in the second hollow rod 22 will enter the cavity from the liquid outlet pipe 21, and then be sprayed out in the form of mist from the mist nozzle 19. The mist coolant will also cool the welding station that is not in contact with the cooling pipe 12, thereby accelerating the overall cooling efficiency of the welding station.

[0041] A sliding opening 24 is provided on the surface of one end of the cooling pipe 12 connected to the first water collecting box 11, and a baffle 25 for covering the water outlet is horizontally slidably inserted in the sliding opening 24, and the baffle 25 is controlled to move horizontally by a pressing component. The pressing component includes an inclined plate 26 fixedly installed at one end of the baffle 25, an inclined opening 27 provided on the surface of the inclined plate 26, an I-shaped block 28 slidably arranged in the inclined opening 27, and an L-shaped connecting plate 29 fixedly installed on the surface of the I-shaped block 28. The plurality of connecting plates 29 are respectively located directly below the plurality of cooling pipes 12, and a force-bearing rod 30 is fixedly installed on the upper surface of the connecting plate 29. A through opening that passes through the top of the platform 1 is vertically provided on the upper surface of the cooling pipe 12, and the plurality of force-bearing rods 30 are respectively vertically slidably and sealingly inserted in the through opening, and are connected to the wall of the installation cavity 3 through a telescopic component, and the telescopic component includes a telescopic spring 31 sleeved on the force-bearing rod 30, and the two ends of the telescopic spring 31 are respectively fixedly connected to the upper surface of the connecting plate 29 and the top wall of the installation cavity 3.

[0042] When there is no steel structure to be welded on the cooling pipe 12, the multiple stress-bearing rods 30 will not be pressed by the steel structure, so the top of the stress-bearing rod 30 will be at the highest point under the elastic potential energy of the telescopic spring 31. At this time, the multiple I-shaped blocks 28 will be at the top of the multiple bevels 27 respectively, and the multiple baffles 25 will be located in the multiple sliding openings 24 respectively, and cover the multiple water outlets. When a steel structure is placed on the multiple cooling pipes 12, the stress-bearing plates 30 that are partially against the steel structure will move downward under the gravity of the steel structure. During the downward movement, the I-shaped blocks 28 will also slide in the bevels 27 and slide to the bevels. At the bottom of 27, under the action of the inclined surface, the baffle 25 will move laterally, so that the water outlet covered by the end of the cooling pipe 12 in contact with the steel structure is in an open state, and the coolant entering the first water collecting box 11 from the water storage tank 5 will enter the multiple cooling pipes 12 in contact with the steel structure from the water outlet in the open state, while the cooling pipes 12 not in contact with the steel structure will not be passed into the coolant, that is, only the cooling pipes 12 in contact with the steel structure will be passed into the coolant, while the cooling pipes 12 not in contact with the steel structure will not be passed into the coolant, thereby avoiding the coolant from doing useless work and improving the utilization rate of the coolant.

[0043] A display component is provided in the water tank 5, and the display component is used to display the horizontal height of the coolant in the water tank 5 outside the platform 1. The display component includes a U-shaped water pipe 32. A first mounting port is opened on the surface of the water tank 5, and a second mounting port is opened on the surface of the platform 1. The first mounting port and the second mounting port are located on the same horizontal line. The water pipe 32 is fixedly installed in the first mounting port and the second mounting port. The two ends of the water pipe 32 are respectively located in the water tank 5 and outside the platform 1. A water inlet 6 is opened horizontally on the bottom surface of the water pipe 32 located in the water tank 5, and the water pipe 32 is made of transparent material.

[0044] The operator can quickly know the height of the coolant level in the water tank 5 by observing the coolant level in the end of the water pipe 32 located outside the platform 1, so as to judge whether coolant needs to be added, without opening the door cover 4 to observe the amount of coolant in the water tank 5, so as to avoid the failure to cool the welding part normally due to untimely addition of coolant.

[0045] In the present invention, the steel structure to be welded is first placed on the upper surface of multiple cooling tubes 12. After welding, the first piston rod 9 can be controlled by the driving assembly to move back and forth laterally. During the movement, the volume in the first hollow rod 8 will continuously change from small to large and then from large to small. When the volume in the first hollow rod 8 increases, the pressure decreases, and the coolant in the water storage tank 5 will enter the first hollow rod 8 from the water inlet pipe 7. When the volume in the first hollow rod 8 decreases, the pressure increases, and the coolant in the first hollow rod 8 will enter the first water collecting box 11 from the water outlet pipe 10, and then enter the multiple cooling tubes 12. The coolant will flow in the cooling tube 12, and then enter the second water collecting box 13, and finally enter the water storage tank 5 from the return pipe 14, thereby achieving a water circulation effect. When the coolant circulates in the cooling tube 12, it can absorb the heat generated by the welding part, achieving a rapid cooling effect, and the cooling effect is good.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cooling device for welding box-type steel structures in heavy-duty workshops, comprising a platform (1), characterized in that: A welding robot arm (2) is fixedly installed on the back of the platform (1), a mounting cavity (3) is provided in the platform (1), a through hole connected to the mounting cavity (3) is provided on the back of the platform (1), a door cover (4) is rotatably installed in the through hole, a water tank (5) is fixedly installed in the mounting cavity (3), the water tank (5) is filled with cooling liquid, a water inlet pipe (7) connected to the water tank (5) is fixedly installed on the side wall, a first hollow rod (8) with a closed end is fixedly installed at one end of the water inlet pipe (7) located outside the water tank (5), a first piston rod (9) is inserted in a sliding seal in the first hollow rod (8), a water outlet pipe (10) is fixedly installed on the upper surface of the first hollow rod (8), and a first one-way valve is provided in both the water inlet pipe (7) and the water outlet pipe (10); A first water collecting box (11) connected to the water outlet pipe (10) is fixedly installed at the top end thereof, and a plurality of water outlets are provided on the upper surface of the first water collecting box (11). A plurality of U-shaped cooling pipes (12) are fixedly installed on the upper surface of the platform (1), and both ends of the cooling pipes (12) are inserted into the installation cavity (3). One end of the plurality of cooling pipes (12) respectively covers the plurality of water outlets, and a second water collecting box (13) connected to the water outlet pipe (10) is fixedly installed at the other end thereof. The second water collecting box (13) is connected to the water storage tank (5) via a return pipe (14), and the first piston rod (9) is controlled to move back and forth horizontally via a driving assembly.

2. A cooling device for welding box-type steel structures in heavy-duty workshops according to claim 1, characterized in that: The driving assembly comprises a driving motor (15) fixedly mounted on the side wall of the platform (1), a reciprocating screw (16) and a slide plate (17) threadedly sleeved on the reciprocating screw (16); the output shaft of the driving motor (15) penetrates into the mounting cavity (3) and is fixedly connected to the reciprocating screw (16); one end of the first piston rod (9) is fixedly connected to the surface of the slide plate (17).

3. A cooling device for welding box-type steel structures in heavy-duty workshops according to claim 2, characterized in that: An L-shaped mounting plate (18) is fixedly mounted on the upper surface of the platform (1), a cavity is formed in the mounting plate (18), a mist nozzle (19) connected to the cavity is fixedly mounted on the lower surface of the mounting plate (18), and a water supply component for spraying the cooling liquid in the water storage tank (5) in the form of mist from the mist nozzle (19) is provided in the mounting cavity (3).

4. A cooling device for welding box-type steel structures in heavy-duty workshops according to claim 3, characterized in that: The water supply assembly comprises a liquid inlet pipe (20), a liquid outlet pipe (21), a second hollow rod (22) with a closed end, and a second piston rod (23) inserted in the second hollow rod (22) with a sliding seal. The liquid inlet pipe (20) is fixedly mounted on the side wall of the water storage tank (5) and communicated with the inside of the water storage tank (5). The end of the liquid inlet pipe (20) located outside the water storage tank (5) is fixedly connected to the closed end of the second hollow rod (22). One end of the second piston rod (23) is fixedly connected to the surface of the slide plate (17). The two ends of the liquid outlet pipe (21) are respectively fixedly connected to the second hollow rod (22) and the placement plate (18), and are respectively communicated with the inside of the second hollow rod (22) and the cavity. Second one-way valves are provided in both the liquid inlet pipe (20) and the liquid outlet pipe (21).

5. The cooling device for welding box-type steel structures in heavy-duty workshops according to claim 4 is characterized in that: A sliding opening (24) is provided on the surface of one end of the cooling pipe (12) connected to the first water collecting box (11), and a baffle (25) for covering the water outlet is inserted into the sliding opening (24) for horizontal sliding movement, and the baffle (25) is controlled to move horizontally by a pressing component.

6. A cooling device for welding box-type steel structures in heavy-duty workshops according to claim 5, characterized in that: The pressing assembly comprises an inclined plate (26) fixedly mounted on one end of the baffle (25), an inclined opening (27) opened on the surface of the inclined plate (26), an I-shaped block (28) slidably arranged in the inclined opening (27), and an L-shaped connecting plate (29) fixedly mounted on the surface of the I-shaped block (28), wherein a plurality of the connecting plates (29) are respectively located directly below a plurality of cooling tubes (12), a force-bearing rod (30) is fixedly mounted on the upper surface of the connecting plate (29), a through opening vertically opened on the upper surface of the cooling tube (12) and penetrating the top of the platform (1), and a plurality of the force-bearing rods (30) are respectively vertically slidably and sealingly inserted in the through opening, and are connected to the wall of the installation cavity (3) through a telescopic component.

7. A cooling device for welding box-type steel structures in a heavy-duty workshop according to claim 6, characterized in that: The telescopic component comprises a telescopic spring (31) sleeved on a force-bearing rod (30), and two ends of the telescopic spring (31) are respectively fixedly connected to the upper surface of the connecting plate (29) and the top wall of the installation cavity (3).

8. The cooling device for welding box-type steel structures in heavy-duty workshops according to claim 7 is characterized in that: A display component is provided in the water storage tank (5), and the display component is used to display the level of the cooling liquid in the water storage tank (5) outside the platform body (1).

9. A cooling device for welding box-type steel structures in a heavy-duty workshop according to claim 8, characterized in that: The display component comprises a U-shaped water pipe (32); a first mounting opening is provided on the surface of the water storage tank (5); a second mounting opening is provided on the surface of the platform (1); the first mounting opening and the second mounting opening are located on the same horizontal line; the water pipe (32) is fixedly installed in the first mounting opening and the second mounting opening; two ends of the water pipe (32) are located in the water storage tank (5) and outside the platform (1), respectively; a water inlet (6) is provided horizontally on the bottom surface of the water pipe (32) located in the water storage tank (5); and the water pipe (32) is made of a transparent material.

10. A method for cooling a box-type steel structure welding device in a heavy-duty workshop according to claim 9, characterized in that: First, the steel structure to be welded is placed on the upper surface of a plurality of cooling pipes (12). After welding is completed, the first piston rod (9) can be controlled by a driving assembly to move back and forth laterally. During the movement, the volume inside the first hollow rod (8) will continuously change from small to large and then from large to small. When the volume inside the first hollow rod (8) increases, the pressure decreases, and the coolant in the water tank (5) enters the first hollow rod (8) from the water inlet pipe (7). When the volume inside the first hollow rod (8) decreases, the pressure decreases. , the pressure will increase, and the coolant in the first hollow rod (8) will enter the first water collecting box (11) from the water outlet pipe (10), and then enter the plurality of cooling pipes (12). The coolant will flow in the cooling pipe (12), and then enter the second water collecting box (13), and finally enter the water storage tank (5) from the return pipe (14), thereby achieving a water circulation effect. When the coolant circulates in the cooling pipe (12), it can absorb the heat generated by the welding part, thereby achieving a rapid cooling effect.

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