Automatic welding equipment for fabricated building steel structure

Abstract

The invention relates to the technical field of steel welding, in particular to assembly type building steel structure automatic welding equipment which comprises a bearing plate, mounting plates are symmetrically arranged on the bearing plate front and back, first sliding grooves are formed in the end faces of the mounting plates, and a limiting part used for limiting a box column bottom plate is arranged between the two mounting plates. According to the box column welding device, alignment and abutting work on a box column can be achieved before welding work, the cross-shaped plate moves downwards to drive the side plates to be close synchronously, it is guaranteed that steel plates are always in a mutual abutting state before welding work, when the welding part is used for welding a seam, the welding efficiency is improved, and the welding quality is improved. The position of the alignment section of the L-shaped bearing plate is adjusted through movement of the electric sliding block, the abutting force between the side plate and the welding point positions of the bottom plate and the partition plate in the welding process is improved, free deformation of a workpiece is limited, then welding deformation is reduced, and meanwhile the situation that when single abutting is conducted, other parts are subjected to external force, and consequently position deviation occurs is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of steel welding, and particularly relates to an automatic welding device for steel structures of prefabricated buildings. Background Art

[0002] The steel structure of a prefabricated building refers to a building method in which prefabricated and welded steel structure components are quickly assembled on site. This building method has many advantages compared with the traditional cast-in-place concrete structure, such as faster construction speed, higher quality control level, and better environmental adaptability, etc.

[0003] There are various types of steel commonly used in the steel of prefabricated buildings, and different steel structures can be selected according to actual building needs. To ensure the overall stability and safety of the building, the selection of the main beam steel structure in prefabricated buildings is particularly important. Common steel structures that can be used as main beams include box columns, precast concrete beams, and composite beams, etc. Among the steel structures that can be used as main beams mentioned above, box columns are more common than other main beams.

[0004] The box column (as Figure 13 shown) is usually welded by four steel plates to form a rectangular or trapezoidal cross-section. In the existing welding work of box columns, usually, the four steel plates are gradually assembled by hoisting, and the joints are welded manually or by a welding device.

[0005] There are still certain drawbacks in the existing welding methods: during the assembly process of the box column welded by four steel plates, due to its long length, it is impossible to ensure the uniformity and consistency of the welds between the joints of the four steel plates. Therefore, it is easy to cause quality problems such as insufficient weld build-up during the subsequent welding process. At the same time, during the welding process of the box column composed of multiple steel plates welded together, due to the phenomenon of thermal expansion and contraction, the heating area will deform, resulting in dimensional deviations before and after welding. Summary of the Invention

[0006] In view of the above problems, the embodiments of the present application provide an automatic welding device for steel structures of prefabricated buildings to solve the problems existing in the welding process of box columns.

[0007] To achieve the above object, the embodiments of the present application provide the following technical solution: an automatic welding device for steel structures of prefabricated buildings, including a supporting plate, on which mounting plates with sliding grooves one opened at the end faces are symmetrically arranged front and back. A limiting portion for limiting the bottom plate of the box column is arranged between the two mounting plates, and a welding portion is arranged above the limiting portion and between the two mounting plates.

[0008] The upper end surface of the supporting plate is provided with an arc-shaped groove in the left-right direction. An arc-shaped supporting plate is slidably arranged inside the arc-shaped groove. An arc-shaped through groove is provided in the side wall of the arc-shaped supporting plate in the left-right direction. A plurality of rectangular grooves extending in the left-right direction are provided on the upper end surface of the arc-shaped supporting plate in a front-back symmetric manner. Telescopic stoppers with inclined surfaces for the telescopic sections are fixedly arranged inside the rectangular grooves. The inclined surfaces of the two telescopic stoppers opposite to each other in the front and back have opposite inclination directions.

[0009] The limiting part includes L-shaped supporting plates slidably arranged symmetrically in the front and back. A driving group for driving them to move relative to each other is arranged below the two L-shaped supporting plates. An auxiliary part one is arranged on the front side wall of the front L-shaped supporting plate. An auxiliary part two for cooperating with the auxiliary part one to work is also arranged below the two L-shaped supporting plates.

[0010] The L-shaped supporting plate is divided into a horizontal alignment section and a vertical pushing section slidably arranged on the alignment section. The side walls of the two alignment sections close to each other are provided with inclined surfaces that cooperate with the inclined surfaces of the telescopic stoppers. A plurality of sliding grooves are provided on the upper end surface of the alignment section in the left-right direction. A plurality of round rollers are arranged between adjacent sliding grooves. The pushing section is arranged on the alignment section through a plurality of springs fixed in the sliding grooves. A plurality of telescopic vertical plates with inclined upper ends are arranged in a staggered manner on the side walls of the two pushing sections close to each other.

[0011] Preferably, support plates are fixedly arranged on the lower end surface of the supporting plate in a front-back symmetric manner. A connecting plate is fixedly arranged between the two support plates. Rectangular through grooves and installation grooves are symmetrically provided on the upper end surface of the supporting plate and on the left and right sides of the arc-shaped supporting plate. A strip-shaped through groove is also provided on the upper end surface of the supporting plate. There are two strip-shaped through grooves, which are arranged in a staggered manner on the front and back sides of the arc-shaped supporting plate. A rectangular baffle is fixedly arranged on the upper end surface of the right side of the supporting plate. An avoidance groove with a vertical plate inside is provided on the lower end surface of the right side of the supporting plate.

[0012] Preferably, the driving group includes a rotary motor fixedly arranged on the upper end surface of the connecting plate. The outer wall of the output shaft of the rotary motor is fixedly provided with an adjusting gear rotatably connected to the supporting plate. Rack bars that slide on the lower end surface of the supporting plate and are always meshed with the adjusting gear are arranged on the left and right sides of the adjusting gear. The two rack bars are respectively fixedly connected to the corresponding L-shaped supporting plates through connecting telescopic blocks penetrating the strip-shaped through grooves.

[0013] Preferably, a plurality of teeth are fixedly arranged along the arc-shaped outer wall at one end of the arc-shaped bearing plate corresponding to the avoidance groove. A reciprocating motor is fixedly arranged below the teeth through an L-shaped plate. The output shaft of the reciprocating motor is rotatably connected to the vertical plate, and a driving gear that is always engaged with the teeth is fixedly arranged on the outer wall of the output shaft of the reciprocating motor. A plurality of groups of auxiliary rollers are further arranged on the upper end surface of the arc-shaped bearing plate in the left-right direction. Each group of auxiliary rollers includes three auxiliary rollers, and the auxiliary rollers are located between two opposite front and rear telescopic stoppers. Two roller shafts I are arranged in the arc-shaped through groove, and both ends of the roller shaft I are fixedly connected to the supporting plate.

[0014] Preferably, a second sliding groove communicating with the first sliding groove is further opened in the mounting plate in the up-down direction. Trapezoidal grooves are opened on the left and right side walls of the second sliding groove, and the inclined surfaces of the two trapezoidal grooves are opposite to each other. A wedge-shaped top block with an inclined lower end surface is slidably arranged in the second sliding groove. Telescopic trapezoidal blocks are fixedly arranged on the left and right side walls of the wedge-shaped top block corresponding to the second sliding groove. A rolling shaft matched with the second sliding groove is arranged on the inclined surface below the telescopic trapezoidal block.

[0015] Preferably, the first auxiliary part includes a square block slidably arranged in the first sliding groove through an electric slider. A telescopic plate is fixedly arranged on one side wall of the square block close to the L-shaped bearing plate. The other end of the telescopic plate is fixedly connected to the L-shaped bearing plate. An auxiliary block penetrating through the square block and the mounting plate and fixedly connected to the L-shaped bearing plate is arranged above the telescopic plate. A roller shaft II matched with the wedge-shaped top block is rotatably arranged on the side of the auxiliary block far from the L-shaped bearing plate. The first auxiliary part further includes a telescopic push rod fixedly arranged inside the front auxiliary block. The telescopic section of the telescopic push rod penetrates through the auxiliary block and the L-shaped bearing plate, and a strip-shaped push plate is fixedly arranged at the end of the telescopic section.

[0016] Preferably, the welding part includes a cross-shaped plate slidably arranged in the two first sliding grooves through electric sliders. Electromagnets are arranged on the side walls of the two cross-shaped plates away from each other. Two sliding through grooves I extending in the left-right direction and a sliding through groove II extending in the front-rear direction are opened on the upper end surface of the cross-shaped plate. The sliding through groove II penetrates through the two sliding through grooves I. Two sliding blocks are slidably arranged in the sliding through groove II in a front-rear symmetric manner. A material receiving bucket for containing electroslag is arranged on the upper end surface of the sliding block. A material guiding frustum communicating with the material receiving bucket is arranged below the sliding block. Two telescopic arc-shaped plates are fixedly arranged on the lower end surface of the material guiding frustum. The two telescopic arc-shaped plates are combined into a complete annular shell. A welding head is further arranged at the lower end of the material guiding frustum.

[0017] Preferably, the second auxiliary part includes a hydraulic push rod fixedly arranged on the upper end face of the connecting plate. The telescopic section of the hydraulic push rod is fixedly provided with a U-shaped frame with an upward opening. The two vertical sections of the U-shaped frame are respectively located in two rectangular through grooves. The second auxiliary part also includes a plurality of roller shafts three rotatably arranged in the installation groove in the left-right direction.

[0018] Preferably, the rack penetrates through the strip-shaped through groove and is rigidly connected with the L-shaped bearing plate through a connecting telescopic block, and the meshing direction of the adjusting gear and the rack is opposite.

[0019] Preferably, a blanking groove is formed in the end face of the material guiding frustum along the circumference. The blanking groove is located in the annular shell formed by the telescopic arc-shaped plates. The welding head is located at the center of the annular shell and completes the welding of the partition pre-welding holes through electro-slag welding.

[0020] Compared with the prior art, the embodiment of the present invention has the following beneficial effects:

[0021] 1. The present invention can drive the L-shaped bearing plates on both sides to approach synchronously through the reciprocating motor to perform the alignment and clamping work on the box-shaped column before the welding work, ensuring that it does not shift in position during the subsequent welding process. At the same time, the present invention can drive the L-shaped bearing plates to approach synchronously by the downward movement of the cross-shaped plate, ensuring that the bottom plate, partition plate, and side plates are always in a mutually clamped state before the welding work, thereby improving the quality of the subsequent welding work.

[0022] 2. When the welding part welds the joints of the bottom plate, partition plate, and side plates, the present invention can drive the square block to move synchronously with the welding point through the electric sliders on both sides of the square block, and by adjusting the position of the alignment section of the L-shaped bearing plate, improve the clamping force at the welding points of the side plate with the bottom plate and partition plate during welding, limit the free deformation of the workpiece, thereby reducing the welding deformation, and at the same time avoiding the situation that other parts are affected by external forces and shift in position during single clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 is a planar structural schematic diagram of the present invention after removing the cross-shaped plate.

[0025] Figure 3 is a three-dimensional structural schematic diagram of the present invention after removing the welding part.

[0026] Figure 4 is a schematic diagram of the positional relationship between the supporting plate and the arc-shaped bearing plate in the present invention.

[0027] Figure 5 is a schematic diagram of the upper part structure of the arc-shaped bearing plate.

[0028] Figure 6 It is a schematic diagram of the first position structure of the drive group in the present invention.

[0029] Figure 7 It is a schematic diagram of the second position structure of the drive group in the present invention.

[0030] Figure 8 It is a cross-sectional view of the auxiliary part one in the present invention.

[0031] Figure 9 It is a three-dimensional structure schematic diagram of the lower end of the supporting plate in the present invention.

[0032] Figure 10 It is a schematic diagram of the positional relationship between the mounting plate and the cross-shaped plate in the present invention.

[0033] Figure 11 It is a three-dimensional structure schematic diagram of the welding part in the present invention.

[0034] Figure 12 is Figure 11 a partial enlarged view of part A in

[0035] Figure 13 It is a schematic diagram of the product after the bottom plate, partition plate and side plate are welded in the present invention.

[0036] Figure 14 It is a three-dimensional structure schematic diagram of the box column partition plate.

[0037] Reference numerals in the figure: 1, supporting plate; 11, arc groove; 12, arc supporting plate; 121, arc through groove; 122, telescopic stop block; 123, tooth; 124, reciprocating motor; 125, driving gear; 126, auxiliary roller; 13, support plate; 131, connecting plate; 14, rectangular through groove; 15, installation groove; 16, strip through groove; 17, rectangular baffle; 18, vertical plate; 19, avoidance groove; 2, mounting plate; 21, sliding groove one; 22, sliding groove two; 23, wedge-shaped top block; 24, telescopic trapezoidal block; 3, limiting part; 31, L-shaped supporting plate; 311, sliding groove; 312, round roller; 313, telescopic vertical plate; 32, drive group; 321, rotating motor; 322, adjusting gear; 323, rack; 33, auxiliary part one; 331, square block; 332, telescopic plate; 333, auxiliary block; 334, roller two; 335, telescopic push rod; 336, strip push plate; 34, auxiliary part two; 341, hydraulic push rod; 342, C-shaped frame; 343, roller three; 4, welding part; 41, cross-shaped plate; 42, sliding through groove one 42; 43, sliding through groove two; 44, sliding block; 45, material receiving bucket; 46, guide material round table; 461, blanking groove; 462, telescopic arc plate; 47, welding head; 5, bottom plate. Detailed implementation manners

[0038] The following is combined with the attachedFigure 1-14 Further detailed description of this application is provided as follows.

[0039] Please refer to Figure 1 and Figure 13 , an automatic welding device for the steel structure of prefabricated buildings, including a supporting plate 1. On the supporting plate 1, mounting plates 2 with sliding grooves 21 opened at the end faces are symmetrically arranged in the front and rear. Between the two mounting plates 2, a limiting part 3 for limiting the bottom plate 5 of the box column is arranged. Above the limiting part 3 and between the two mounting plates 2, a welding part 4 is arranged.

[0040] Please refer to Figure 3 , Figure 5 , Figure 6 and Figure 7 , the lower end face of the supporting plate 1 is fixedly provided with supporting plates 13 symmetrically in the front and rear. Between the two supporting plates 13, a connecting plate 131 is fixedly provided. The upper end face of the supporting plate 1 is provided with an arc-shaped groove 11 in the left-right direction. An arc-shaped supporting plate 12 is slidably arranged inside the arc-shaped groove 11. An arc-shaped through groove 121 is opened in the side wall of the arc-shaped supporting plate 12 in the left-right direction. On the upper end face of the supporting plate 1 and symmetrically on the left and right sides of the arc-shaped supporting plate 12, rectangular through grooves 14 and installation grooves 15 are opened. The upper end face of the supporting plate 1 is also provided with strip-shaped through grooves 16. There are two strip-shaped through grooves 16, which are arranged staggeredly on the front and rear sides of the arc-shaped supporting plate 12. The upper end face of the right side of the supporting plate 1 is fixedly provided with a rectangular baffle 17. An avoidance groove 19 with a vertical plate 18 arranged inside is opened on the lower end face of the right side of the supporting plate 1.

[0041] Please refer to Figure 5 , on the upper end face of the arc-shaped supporting plate 1, a number of rectangular grooves extending in the left-right direction are symmetrically opened in the front and rear. Inside the rectangular grooves, telescopic stoppers 122 with inclined telescopic sections are fixedly arranged. The inclined directions of the inclined surfaces of the two opposite telescopic stoppers 122 in the front and rear are opposite. On the upper end face of the arc-shaped supporting plate 1, a number of groups of auxiliary rollers 126 are also arranged in the left-right direction. Each group of auxiliary rollers 126 includes three auxiliary rollers 126, and the auxiliary rollers 126 are located between the two opposite telescopic stoppers 122 in the front and rear. Two roller shafts 1 are arranged in the arc-shaped through groove 121, and the two ends of the roller shaft 1 are respectively fixedly connected with the supporting plate 1.

[0042] During specific operation, first, the bottom plate 5 of the box column is pushed along the arc-shaped supporting plate 1 by an external conveying device. Through the rotation of a number of groups of auxiliary rollers 126 arranged on the arc-shaped supporting plate 1, the resistance of the bottom plate 5 moving to the right is reduced, and finally the right end of the bottom plate 5 contacts the rectangular baffle 17.

[0043] Please refer to Figure 6 , Figure 8 and Figure 9, the limiting part 3 includes L-shaped bearing plates 31 slidably arranged on the supporting plate 1 in a front-back symmetric manner. Below the two L-shaped bearing plates 31, there is a driving group 32 for driving the L-shaped bearing plates 31 to approach and move away from each other. On the front side wall of the front L-shaped bearing plate 31, there is an auxiliary part 33 for installing the side plate of the box column. Below the two L-shaped bearing plates 31, there is also an auxiliary part 34 that cooperates with the auxiliary part 33 to work.

[0044] Please refer to Figure 7 and Figure 8 , the L-shaped bearing plate 31 is divided into a horizontal alignment section and a vertical pushing section slidably arranged on the alignment section. On the side walls of the two alignment sections close to each other, they are arranged in an inclined shape that matches the inclined surface of the telescopic stopper 122. And on the upper end surface of the alignment section, there are a number of sliding grooves 311 opened in the left-right direction. Between adjacent two sliding grooves 311, there are a number of round rollers 312. The pushing section is arranged on the alignment section through a number of springs fixed inside the sliding grooves 311. On the side walls of the two pushing sections close to each other, there are a number of telescopic vertical plates 313 with inclined upper ends arranged in a staggered manner. The inclined directions of the telescopic vertical plates 313 on the same pushing section are the same.

[0045] Please refer to Figure 6 and Figure 7 , the driving group 32 includes a rotary motor 321 fixedly arranged on the upper end surface of the connecting plate 131. On the outer wall of the output shaft of the rotary motor 321, there is an adjusting gear 322 rotatably connected to the supporting plate 1. On the left and right sides of the adjusting gear 322, there are racks 323 slidably arranged on the lower end surface of the supporting plate 1 and always meshing with the adjusting gear 322. The two racks 323 are respectively fixedly connected to the corresponding L-shaped bearing plates 31 through connecting telescopic blocks penetrating through the strip-shaped through slots 16.

[0046] When the right end of the bottom plate 5 abuts against the rectangular baffle 17, continue to place the two side plates of the box column on the alignment sections of the L-shaped bearing plates 31 respectively through an external conveying device and push them to the right as well. At this time, under the action of the round rollers 312 on the pushing sections of the L-shaped bearing plates 31, the side plates reduce the frictional resistance and also contact the right rectangular baffle 17.

[0047] Control the rotation of the rotating motor 321 to drive the adjusting gear 322 to rotate. When the adjusting gear 322 rotates, the rack bars 323 on both sides drive the connected L-shaped bearing plates 31 to slide along the strip-shaped through groove 16 and approach each other. The alignment section of the L-shaped bearing plate 31 makes the telescopic stop block 122 retract through the abutting fit between the inclined surface and the auxiliary roller 126 on the telescopic stop block 122. Then, the alignment sections of the L-shaped bearing plates 31 on both sides come into contact with the front and rear side walls of the bottom plate 5, and the bottom plate 5 is synchronously pushed and aligned by the alignment sections of the L-shaped bearing plates 31. At this time, several telescopic vertical plates 313 arranged on the pushing sections of the two L-shaped bearing plates 31 are staggered above the bottom plate 5, and then the partitions of the box-shaped column are sequentially placed between the two telescopic vertical plates 313.

[0048] It should be noted that referring to Figure 14 , the upper and lower side walls of the box-shaped column partition are symmetrically provided with U-shaped grooves with opposite openings, and a first circular groove is provided at the center position of the end face of the partition. Four second circular grooves are also provided along the circumferential direction on the end face of the partition, and the four second circular grooves are arranged around the first circular groove. When placing the partition between the two telescopic vertical plates 313, the two U-shaped grooves should be located on the upper and lower sides of the partition, and the lower U-shaped groove should be in close contact with the bottom plate 5.

[0049] Please refer to Figure 8 , a second sliding groove 22 communicating with the first sliding groove 21 is further provided inside the mounting plate 2 in the up and down direction. Trapezoidal grooves are provided on the left and right side walls of the second sliding groove 22, and the inclined surfaces of the two trapezoidal grooves are opposite in position. A wedge-shaped top block 23 with an inclined surface at the lower end is slidably arranged inside the second sliding groove 22. Telescopic trapezoidal blocks 24 are fixedly arranged on the left and right side walls of the wedge-shaped top block 23 corresponding to the second sliding groove 22. A rolling shaft cooperating with the second sliding groove 22 is provided on the inclined surface below the telescopic trapezoidal block 24.

[0050] Please refer to Figure 2 and Figure 8 , the first auxiliary part 33 includes a square block 331 slidably arranged inside the first sliding groove 21 through an electric slider. A telescopic plate 332 is fixedly arranged on one side wall of the square block 331 close to the L-shaped bearing plate 31. The other end of the telescopic plate 332 is fixedly connected to the L-shaped bearing plate 31. An auxiliary block 333 passing through the square block 331 and the mounting plate 2 and fixedly connected to the L-shaped bearing plate 31 is arranged above the telescopic plate 332. A second roller shaft 334 cooperating with the wedge-shaped top block 23 is rotatably arranged on the side of the auxiliary block 333 away from the L-shaped bearing plate 31.

[0051] Please refer to Figure 10 , Figure 11 and Figure 12, the welding part 4 includes a cross-shaped plate 41 slidably arranged inside two first sliding grooves 21 through an electric slider. Electromagnets are arranged on the outer side walls of the two cross-shaped plates 41 away from each other. Two first sliding through grooves 42 extending in the left-right direction and a second sliding through groove 43 extending in the front-back direction are formed on the upper end surface of the cross-shaped plate 41. The second sliding through groove 43 penetrates through the two first sliding through grooves 42. Two sliding blocks 44 are slidably arranged in the second sliding through groove 43 in a front-back symmetric manner. A material receiving bucket 45 for holding electroslag is arranged on the upper end surface of the sliding block 44. A material guiding frustum 46 communicated with the material receiving bucket 45 is arranged below the sliding block 44. A plurality of blanking grooves 461 are formed on the end surface of the material guiding frustum 46 along the circumferential direction. Two telescopic arc-shaped plates 462 are fixedly arranged on the lower end surface of the material guiding frustum 46. The two telescopic arc-shaped plates 462 are combined into a complete annular shell. The plurality of blanking grooves 461 are located inside the annular shell. A welding head 47 with multi-degree-of-freedom rotation at the lower end surface is also fixedly arranged at the central position of the material guiding frustum 46. The welding head 47 is also located in the annular shell.

[0052] Please refer to Figure 4 , Figure 6 and Figure 9 , a plurality of teeth 123 are fixedly arranged along the arc-shaped outer wall at one end of the arc-shaped bearing plate 12 corresponding to the avoidance groove 19. A reciprocating motor 124 is fixedly arranged below the teeth 123 through an L-shaped plate. The output shaft of the reciprocating motor 124 is rotatably connected to the vertical plate 18. A driving gear 125 that is always meshed with the teeth 123 is fixedly arranged on the outer wall of the output shaft of the reciprocating motor 124.

[0053] When the two L-shaped bearing plates 31 on both sides approach each other, they will drive the corresponding auxiliary blocks 333 to move synchronously, and make the two auxiliary blocks 333 on both sides be respectively located in the corresponding second sliding grooves 22. Then, the power supply of the electromagnet on the cross-shaped plate 41 is turned on, and the two ends of the cross-shaped plate 41 are respectively fixed to the wedge-shaped top blocks 23 by magnetic attraction. The electric sliders on both sides are controlled to slide downward along the first sliding grooves 21. At this time, through the cooperation of the rolling shaft arranged on the telescopic trapezoidal block 24 and the trapezoidal groove, the telescopic trapezoidal block 24 retracts and disengages from the trapezoidal groove. When the two wedge-shaped top blocks 23 move downward, they will simultaneously push the roller shafts 334 on the auxiliary blocks 333, and make the two auxiliary blocks 333 on both sides drive the pushing sections of the L-shaped bearing plates 31 to approach synchronously.

[0054] When the pushing sections on both sides approach synchronously, the side plates placed on their respective L-shaped bearing plates 31 also approach each other and cooperate with the bottom plate 5 and the side plates to be tightly pressed. Immediately afterwards, the welding head 47 with multiple degrees of freedom is controlled to first spot-weld the joints between the bottom plate 5 and the partition plate, and between the partition plate and the side plates. While welding, the electric sliders on both sides of the square block 331 are controlled to move upwards synchronously. By adjusting the pushing positions of the L-shaped bearing plate 31's alignment section against the box column, the pressing force at different spot-welding positions is changed, thereby ensuring the connection strength after welding. At the same time, it also avoids the situation where other parts are affected by external forces and shift in position when there is a single pressing force.

[0055] After the welding head 47 finishes spot-welding, control the rotation motor 321 to reverse and make the L-shaped bearing plates 31 on both sides move away from each other. At the same time, control the electric slider to drive the cross-shaped plate 41 and the wedge-shaped top block 23 to move upwards, and make the wedge-shaped top block 23 snap into the trapezoidal grooves on both sides. At this time, cut off the power supply of the electromagnet, and continue to drive the cross-shaped plate 41 to move downwards by the electric slider.

[0056] Control the reciprocating motor 124 to drive the driving gear 125 to rotate. When the driving gear 125 rotates, it meshes with the arc-shaped bearing plate 12, making the arc-shaped bearing plate 12 rotate along the arc-shaped through groove 121 within the arc-shaped groove 11. When the bottom plate 5, partition plate, and side plates that have completed spot-welding stop rotating the arc-shaped bearing plate 12 after flipping a certain angle, at this time, control the upper welding head 47 to complete the welding of the inner corner of the left side plate and the bottom plate 5 and the outer corner of the right side plate and the bottom plate 5. Immediately afterwards, control the reciprocating motor 124 to drive the driving gear 125 to reverse, and make the bottom plate 5, partition plate, and side plates above the arc-shaped bearing plate 12 flip to the other direction. Finally, repeat the above welding steps to complete the welding work of the bottom plate 5, partition plate, and side plates.

[0057] It should be noted that after the L-shaped bearing plates 31 on both sides move away from each other, the compressed telescopic stop block 122 resets, and the limiting work of the bottom plate 5 is realized during the rotation of the arc-shaped bearing plate 12, ensuring that it will not slip during the welding process.

[0058] Please refer to Figure 5 、 Figure 6 、 Figure 8 and Figure 9, the auxiliary part one 33 further includes a telescopic push rod 335 fixedly arranged inside the front auxiliary block 333. The telescopic section of the telescopic push rod 335 penetrates through the auxiliary block 333 and the L-shaped bearing plate 31, and a strip-shaped push plate 336 is fixedly arranged at the end of the telescopic section. The auxiliary part two 34 includes a hydraulic push rod 341 fixedly arranged on the upper end surface of the connecting plate 131. The telescopic section of the hydraulic push rod 341 is fixedly provided with a U-shaped frame 342 with an upward opening. The two vertical sections of the U-shaped frame 342 are respectively located in the two rectangular through grooves 14. The auxiliary part two 34 further includes a plurality of roller shafts three 343 rotatably arranged in the installation groove 15 in the left-right direction.

[0059] After the bottom plate 5, partition plate and side plates of the box column are all welded, control the reciprocating motor 124 to drive the arc-shaped bearing plate 12 to rotate to the initial position. Then, push the cover of the box column to the two welded side walls through an external conveying device, and make the right end of the cover abut against the rectangular baffle 17. Then, control the rotating motor 321 to drive the adjusting gear 322 to rotate. At this time, the two L-shaped bearing plates 31 on both sides approach synchronously and make the cover align with the welded part of the box column through a plurality of telescopic vertical plates 313. Continue to control the welding heads 47 on both sides to synchronously weld and fix the joint between the cover and the side plate.

[0060] It should be noted that when the two welding heads 47 slide along their respective sliding grooves one 21 and weld the joint between the cover plate and the partition plate, the welding heads 47 skip the partition plate position during welding and leave pre-welding holes.

[0061] After the cover plate and the side plate are welded, start the rotating motor 321 to reverse and make the two L-shaped bearing plates 31 move away from each other. Then, control the hydraulic push rod 341 arranged on the connecting plate 131 to drive the U-shaped frame 342 to extend. The two vertical sections of the U-shaped frame 342 extend synchronously and lift the box column upward, making the box column gradually tilt and flip. When the box column flips to a certain angle, control the telescopic push rod 335 to drive the strip-shaped push plate 336 to extend and push the box column, thereby assisting the box column to complete a 90-degree flip.

[0062] Immediately control the two L-shaped bearing plates 31 to approach synchronously again to complete the centering alignment work of the box column. Control the welding head 47 to move to directly above the pre-welding hole, and make the annular shell contact and cooperate with the end face of the box column by moving the electric slider downward, and make the pre-welding hole located in the annular shell. At this time, the two welding heads 47 move downward respectively and fall into the corresponding pre-welding holes. Open the material receiving barrel 45 and pour the electroslag into the pre-welding holes through the material dropping groove 461. Finally, weld the partition plate with the bottom plate 5 and the cover plate by electroslag welding. Repeat the above steps to complete the welding work of multiple partition plates.

[0063] It should be noted that when the box column is being flipped, the telescopic stop block 122 at the rear side can prevent the box column from slipping. At the same time, during the flipping process of the box column, the rotation motor 321 is started to drive the two L-shaped bearing plates 31 to slowly approach each other, and the position of the box column on the arc-shaped bearing plate 12 is adjusted by the telescopic vertical plates 313 on both sides, ensuring that the box column is still located at the exact center position of the arc-shaped bearing plate 12 after the flipping is completed.

[0064] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, the meanings of "multiple", "multiple roots", and "multiple groups" are two or more.

[0065] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0066] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic welding device for assembled building steel structure, comprising a supporting plate, characterized in that: The support plate is symmetrically provided with mounting plates with a sliding groove on the end surface, a limiting portion for limiting the bottom plate of the box-type column is provided between the two mounting plates, and a welding portion is provided above the limiting portion and between the two mounting plates; The upper end surface of the supporting plate is provided with an arc groove along the left-right direction, an arc supporting plate is slidably arranged inside the arc groove, and the side wall of the arc supporting plate is provided with an arc through groove along the left-right direction. The upper end surface of the arc supporting plate is provided with a plurality of rectangular grooves extending along the left-right direction in a front-to-back symmetrical manner, and a telescopic stopper with a telescopic section as an inclined surface is fixedly arranged inside the rectangular groove, and the inclined surfaces of the two telescopic stoppers facing each other front and back are inclined in opposite directions; The limiting part includes an L-shaped support plate that is symmetrically slidably arranged in the front and rear directions, a driving group for driving the two L-shaped support plates to move relative to each other is arranged below the two L-shaped support plates, an auxiliary part 1 is arranged on the front side wall of the front L-shaped support plate, and an auxiliary part 2 that cooperates with the auxiliary part 1 is also arranged below the two L-shaped support plates; The L-shaped supporting plate is divided into a horizontal alignment section and a vertical pushing section slidably arranged on the alignment section. A side wall close to the two alignment sections is arranged as an inclined surface matching the inclined surface of the telescopic stopper. A plurality of sliding grooves are opened on the upper end surface of the alignment section along the left and right directions. A plurality of round rollers are arranged between adjacent sliding grooves. The pushing section is arranged on the alignment section through a plurality of springs fixed in the sliding groove. A plurality of telescopic vertical plates with inclined upper ends are staggeredly arranged on a side wall close to the two pushing sections.

2. The automatic welding equipment for assembled building steel structure according to claim 1 is characterized in that: A support plate is fixedly arranged on the lower end surface of the support plate in a front-to-back symmetrical manner, a connecting plate is fixedly arranged between the two support plates, and a rectangular through groove and an installation groove are symmetrically provided on the upper end surface of the support plate and on the left and right sides of the arc-shaped support plate, and a strip through groove is also provided on the upper end surface of the support plate, and two strip through grooves are provided and are staggered on the front and back sides of the arc-shaped support plate, a rectangular baffle is fixedly arranged on the upper end surface of the right side of the support plate, and an avoidance groove with a vertical plate arranged inside is provided on the lower end surface of the right side of the support plate.

3. The automatic welding equipment for assembled building steel structure according to claim 2 is characterized by: The driving group includes a rotating motor fixedly arranged on the upper end surface of the connecting plate, an adjusting gear rotatably connected to the supporting plate is fixedly arranged on the outer wall of the output shaft of the rotating motor, and racks sliding on the lower end surface of the supporting plate and always meshing with the adjusting gear are arranged on the left and right sides of the adjusting gear, and the two racks are fixedly connected to the corresponding L-shaped supporting plate through connecting telescopic blocks passing through the strip-shaped through grooves.

4. The automatic welding equipment for assembled building steel structure according to claim 2 is characterized in that: A plurality of teeth are fixedly provided along the arc-shaped outer wall of one end of the arc-shaped supporting plate corresponding to the avoidance groove, a reciprocating motor is fixedly provided below the teeth through an L-shaped plate, the output shaft of the reciprocating motor is rotatably connected to the vertical plate, and a driving gear which is always meshed with the teeth is fixedly provided on the outer wall of the output shaft of the reciprocating motor, the upper end surface of the arc-shaped supporting plate is also provided with a plurality of groups of auxiliary rollers along the left and right directions, each group of auxiliary rollers includes three auxiliary rollers, and the auxiliary rollers are located between two opposite telescopic blocks at the front and rear, and two roller shafts 1 are provided in the arc-shaped through groove, and the two ends of the roller shaft 1 are respectively fixedly connected to the supporting plate.

5. The automatic welding equipment for assembled building steel structure according to claim 1 is characterized by: Inside the mounting plate, a second sliding groove communicating with the first sliding groove is further formed in the vertical direction. Trapezoidal grooves are formed in the left and right side walls of the second sliding groove, and the inclined surfaces of the two trapezoidal grooves are opposite to each other. A wedge-shaped top block with an inclined surface at the lower end is slidably arranged inside the second sliding groove. Telescopic trapezoidal blocks are fixedly arranged on the left and right side walls of the wedge-shaped top block corresponding to the second sliding groove. A rolling shaft matching with the second sliding groove is arranged on the inclined surface below the telescopic trapezoidal block.

6. The automatic welding equipment for assembled building steel structure according to claim 1 is characterized by: The first auxiliary part includes a square block slidably arranged inside the first sliding groove through an electric slider. A telescopic plate is fixedly arranged on one side wall of the square block close to the L-shaped bearing plate. The other end of the telescopic plate is fixedly connected to the L-shaped bearing plate. Above the telescopic plate, there is an auxiliary block passing through the square block and the mounting plate and fixedly connected to the L-shaped bearing plate. A second roller shaft matching with the wedge-shaped top block is rotatably arranged on the side of the auxiliary block away from the L-shaped bearing plate. The first auxiliary part further includes a telescopic push rod fixedly arranged inside the front auxiliary block. The telescopic section of the telescopic push rod passes through the auxiliary block and the L-shaped bearing plate, and a strip-shaped push plate is fixedly arranged at the end of the telescopic section.

7. The automatic welding equipment for assembled building steel structure according to claim 1 is characterized by: The welding part includes a cross-shaped plate slidably arranged inside the two first sliding grooves through electric sliders. Electromagnets are arranged on the side walls of the two cross-shaped plates away from each other. Two sliding through grooves one extending in the left-right direction and one sliding through groove two extending in the front-back direction are formed on the upper end surface of the cross-shaped plate. The sliding through groove two penetrates through the two sliding through grooves one. Two sliding blocks are slidably arranged in a front-back symmetric manner inside the sliding through groove two. A material receiving bucket for containing electroslag is arranged on the upper end surface of the sliding block. A material guiding frustum communicating with the material receiving bucket is arranged below the sliding block. Two telescopic arc-shaped plates are fixedly arranged on the lower end surface of the material guiding frustum. The two telescopic arc-shaped plates are combined into a complete annular shell. A welding head is further arranged at the lower end of the material guiding frustum.

8. The automatic welding equipment for assembled building steel structure according to claim 2 is characterized by: The second auxiliary part includes a hydraulic push rod fixedly arranged on the upper end surface of the connecting plate. The telescopic section of the hydraulic push rod is fixedly provided with a U-shaped frame with an upward opening. The two vertical sections of the U-shaped frame are respectively located in the two rectangular through grooves. The second auxiliary part further includes a plurality of third roller shafts rotatably arranged in the left-right direction inside the mounting groove.

9. The automatic welding equipment according to claim 3, characterized in that: The rack penetrates through the strip-shaped through groove and is rigidly connected to the L-shaped bearing plate through a connecting telescopic block. The meshing direction of the adjusting gear and the rack is opposite.

10. The automatic welding equipment according to claim 7, characterized in that: A blanking groove is formed in the circumferential direction of the end surface of the material guiding frustum. The blanking groove is located inside the annular shell formed by the telescopic arc-shaped plates. The welding head is located at the center of the annular shell and completes the welding of the partition pre-welding hole through electroslag welding.

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