An automatic welding equipment for prefabricated building steel structures

Abstract

This invention relates to the field of steel welding technology, and particularly to an automatic welding equipment for prefabricated building steel structures. The equipment includes a support plate with mounting plates symmetrically arranged front and rearwards, each with a sliding groove on its end face. A limiting part for positioning the bottom plate of a box-shaped column is located between the two mounting plates. A welding part is located above the limiting part and between the two mounting plates. This invention enables the alignment and clamping of the box-shaped column before welding. The downward movement of the cross-shaped plate causes the side plates to move closer synchronously, ensuring that the steel plates are always in a mutually clamping state before welding. When welding at the joint, the position of the L-shaped support plate alignment section is adjusted by the movement of an electric slider, increasing the clamping force between the side plates and the bottom plate and partition plates during welding, limiting the free deformation of the workpiece, and thus reducing welding deformation. It also avoids situations where other parts are subjected to external forces and shift during single clamping.

Description

Technical Field

[0001] This invention relates to the field of steel welding technology, and in particular to an automatic welding equipment for prefabricated building steel structures. Background Technology

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

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

[0004] Box columns (such as) Figure 13 As shown, it is usually made of four steel plates welded together to form a rectangular or trapezoidal cross section. In the existing welding work of box columns, the four steel plates are usually assembled step by step by hoisting and the joints are welded manually or by welding equipment.

[0005] The existing welding methods still have certain drawbacks: When assembling a box column made of four steel plates, the long length of the column makes it difficult to ensure the uniformity and consistency of the welds at the joints of the four steel plates. This can easily lead to quality problems such as insufficient weld overlay during the later welding process. In addition, the box column, which is composed of multiple steel plates, will deform in the heated area due to thermal expansion and contraction during the welding process, which will cause dimensional deviations before and after welding. Summary of the Invention

[0006] In view of the above problems, this application provides an automatic welding equipment for prefabricated building steel structures to solve the problems existing in the welding process of box columns.

[0007] To achieve the above objectives, the present application provides the following technical solution: an automatic welding equipment for prefabricated steel structures, including a support plate, on which mounting plates with sliding grooves on their end faces are symmetrically arranged front and back, and a limiting part for limiting the bottom plate of a box column is provided between the two mounting plates, and a welding part is provided above the limiting part and between the two mounting plates.

[0008] The upper end face of the support plate is provided with an arc-shaped groove in the left and right direction. An arc-shaped support plate is slidably arranged inside the arc-shaped groove. The side wall of the arc-shaped support plate is provided with an arc-shaped through groove in the left and right direction. The upper end face of the arc-shaped support plate is provided with several rectangular grooves extending in the left and right direction in a symmetrical manner. A telescopic block with an inclined surface is fixedly arranged inside the rectangular groove. The inclined surfaces of two telescopic blocks that are opposite to each other are inclined in opposite directions.

[0009] The limiting part includes L-shaped support plates that are symmetrically slidably arranged front and back. A drive group for driving the two L-shaped support plates to move relative to each other is provided below the two L-shaped support plates. An auxiliary part one is provided on the front side wall of the front L-shaped support plate. An auxiliary part two that works in conjunction with the auxiliary part one is also provided below the two L-shaped support plates.

[0010] The L-shaped support plate is divided into a horizontal alignment section and a vertical pushing section that is slidably set on the alignment section. The side wall of the two alignment sections that are close to each other is set as an inclined surface that cooperates with the inclined surface of the telescopic stop. The upper end surface of the alignment section is provided with several sliding grooves in the left and right direction. Several round rollers are set between adjacent sliding grooves. The pushing section is set on the alignment section by several springs fixed in the sliding grooves. Several telescopic vertical plates with inclined surfaces at the top are staggered on the side wall of the two pushing sections that are close to each other.

[0011] Preferably, the lower end face of the support plate is fixedly provided with a support plate in a symmetrical manner, and a connecting plate is fixedly provided between the two support plates. The upper end face of the support plate is symmetrically provided with a rectangular through groove and an installation groove on the left and right sides of the arc-shaped support plate. The upper end face of the support plate is also provided with a strip-shaped through groove. There are two strip-shaped through grooves, which are staggered on the front and rear sides of the arc-shaped support plate. A rectangular baffle is fixedly provided on the upper end face of the right side of the support plate, and a clearance groove for setting an upright plate is provided on the lower end face of the right side of the support plate.

[0012] Preferably, the drive assembly includes a rotary motor fixedly mounted on the upper surface of the connecting plate. An adjusting gear that is rotatably connected to the support plate is fixedly mounted on the outer wall of the output shaft of the rotary motor. Racks that slide on the lower surface of the support plate and are always engaged with the adjusting gear are provided on the left and right sides of the adjusting gear. The two racks are respectively fixedly connected to the corresponding L-shaped support plate through a connecting telescopic block that passes through the strip groove.

[0013] Preferably, one end of the arc-shaped support plate corresponding to the clearance groove is fixedly provided with a number of teeth along its arc-shaped outer wall. A reciprocating motor is fixedly provided below the teeth via an L-shaped plate. The output shaft of the reciprocating motor is rotatably connected to the vertical plate, and a drive gear that always meshes with the teeth is fixedly provided on the outer wall of the output shaft of the reciprocating motor. The upper end face of the arc-shaped support plate is also provided with a number of sets of auxiliary rollers along the left and right direction. Each set of auxiliary rollers includes three auxiliary rollers, and the auxiliary rollers are located between two opposing telescopic blocks. Two roller shafts are provided in the arc-shaped through groove, and the two ends of the roller shafts are fixedly connected to the support plate respectively.

[0014] Preferably, the mounting plate also has a sliding groove two connected to the sliding groove one along the vertical direction inside. The left and right side walls of the sliding groove two have trapezoidal grooves with the inclined surfaces of the two trapezoidal grooves facing each other. A wedge-shaped top block with an inclined surface at the lower end is slidably disposed inside the sliding groove two. Telescopic trapezoidal blocks are fixedly disposed on the left and right side walls of the wedge-shaped top block corresponding to the sliding groove two. A rolling shaft that cooperates with the sliding groove two is disposed on the inclined surface below the telescopic trapezoidal block.

[0015] Preferably, the auxiliary part one includes a square block that is slidably disposed inside the sliding groove one by an electric slider. A telescopic plate is fixedly disposed on the side wall of the square block near the L-shaped support plate. The other end of the telescopic plate is fixedly connected to the L-shaped support plate. An auxiliary block is disposed above the telescopic plate, penetrating the square block and the mounting plate and fixedly connected to the L-shaped support plate. A roller shaft two that cooperates with the wedge-shaped top block is rotatably disposed on the side of the auxiliary block away from the L-shaped support plate. The auxiliary part one also includes a telescopic push rod fixedly disposed inside the front auxiliary block. The telescopic section of the telescopic push rod penetrates the auxiliary block and the L-shaped support plate, and a strip push plate is fixedly disposed at the end of the telescopic section.

[0016] Preferably, the welding part includes a cross-shaped plate slidably disposed inside two sliding grooves 1 via an electric slider. The side walls of the two cross-shaped plates that are far apart are provided with electromagnets. The upper end face of the cross-shaped plate is provided with two sliding through grooves 1 extending in the left-right direction and one sliding through groove 2 extending in the front-back direction. The sliding through groove 2 passes through the two sliding through grooves 1. Two sliding blocks are slidably disposed in the sliding through groove 2 in a front-back symmetrical manner. The upper end face of the sliding block is provided with a material receiving bucket for holding slag. The lower end face of the sliding block is provided with a guide frustum communicating with the material receiving bucket. The lower end face of the guide frustum is fixedly provided with two telescopic arc plates. The two telescopic arc plates are combined to form a complete annular shell. The lower end of the guide frustum is also provided with a welding head.

[0017] Preferably, the auxiliary part two includes a hydraulic push rod fixedly mounted on the upper surface of the connecting plate. The telescopic section of the hydraulic push rod is fixedly mounted with an upward-facing C-shaped frame. The two vertical sections of the C-shaped frame are respectively located in two rectangular through slots. The auxiliary part two also includes several rollers three that are rotatably mounted inside the mounting slot in the left-right direction.

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

[0019] Preferably, the end face of the guide frustum is provided with a material dropping groove along the circumference. The material dropping groove is located inside the annular shell composed of telescopic arc plates. The welding head is located at the center of the annular shell and the welding of the pre-welded hole of the partition is completed by electroslag welding.

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

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

[0022] 2. When the welding part of the present invention is used to weld the joint of the bottom plate, partition and side plate, the square block can be driven by the electric slider on both sides of the square block to move synchronously with the welding point. By adjusting the position of the L-shaped bearing plate alignment section, the clamping force between the side plate and the welding point of the bottom plate and partition is increased, the free deformation of the workpiece is restricted, thereby reducing welding deformation. At the same time, it avoids the situation where other parts are subjected to external force and thus shift position when clamping alone. Attached Figure Description

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

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

[0025] Figure 3 This is a three-dimensional structural diagram of the present invention after the welding part has been removed.

[0026] Figure 4 This is a schematic diagram showing the positional relationship between the support plate and the arc-shaped support plate in this invention.

[0027] Figure 5 This is a schematic diagram of the upper part of the curved bearing plate.

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

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

[0030] Figure 8 This is a cross-sectional view of auxiliary part one in this invention.

[0031] Figure 9 This is a three-dimensional structural diagram of the lower end of the support plate in this invention.

[0032] Figure 10 This is a schematic diagram showing the positional relationship between the mounting plate and the cross-shaped plate in this invention.

[0033] Figure 11 This is a three-dimensional structural diagram of the welded part in this invention.

[0034] Figure 12 yes Figure 11 Enlarged view of a portion of point A in the middle.

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

[0036] Figure 14 This is a three-dimensional structural diagram of a box-shaped column partition.

[0037] Figure reference numerals: 1. Support plate; 11. Arc-shaped groove; 12. Arc-shaped support plate; 121. Arc-shaped through groove; 122. Telescopic stop block; 123. Tooth; 124. Reciprocating motor; 125. Drive gear; 126. Auxiliary roller; 13. Support plate; 131. Connecting plate; 14. Rectangular through groove; 15. Mounting groove; 16. Strip through groove; 17. Rectangular baffle; 18. Vertical plate; 19. Clearance 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 support plate; 311. Sliding groove; 312. Circular roller; 313. Telescopic vertical... 32. Plate; 321. Drive group; 322. Rotary motor; 323. Adjusting gear; 324. Rack; 335. Auxiliary part one; 34. Square block; 35. Telescopic plate; 36. Auxiliary block; 37. Roller two; 38. Telescopic push rod; 39. Strip push plate; 30. Auxiliary part two; 31. Hydraulic push rod; 32. C-shaped frame; 33. Roller three; 4. Welding part; 42. Cross-shaped plate; 43. Sliding through groove one; 44. Sliding through groove two; 45. Sliding block; 46. Material receiving bucket; 47. Guide frustum; 48. Drop chute; 49. Telescopic arc plate; 40. Welding head; 5. Base plate. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-14 This application will now be described in further detail.

[0039] Please refer to the reference. Figure 1 and Figure 13 An automatic welding equipment for prefabricated building steel structure includes a support plate 1. The support plate 1 has mounting plates 2 with sliding grooves 21 on their end faces arranged symmetrically in front and behind. A limiting part 3 for limiting the bottom plate 5 of the box column is provided between the two mounting plates 2. A welding part 4 is provided above the limiting part 3 and between the two mounting plates 2.

[0040] Please refer to the reference. Figure 3 , Figure 5 , Figure 6 and Figure 7 The support plate 1 has a support plate 13 fixedly installed on its lower end face in a symmetrical manner. A connecting plate 131 is fixedly installed between the two support plates 13. The upper end face of the support plate 1 has an arc-shaped groove 11 in the left-right direction. An arc-shaped support plate 12 is slidably installed inside the arc-shaped groove 11. The side wall of the arc-shaped support plate 12 has an arc-shaped through groove 121 in the left-right direction. The upper end face of the support plate 1 and the left and right sides of the arc-shaped support plate 12 have rectangular through grooves 14 and mounting grooves 15 symmetrically installed. The upper end face of the support plate 1 also has a strip-shaped through groove 16. There are two strip-shaped through grooves 16, which are staggered on the front and rear sides of the arc-shaped support plate 12. A rectangular baffle 17 is fixedly installed on the upper end face of the right side of the support plate 1. The lower end face of the right side of the support plate 1 has a clearance groove 19 with an internal vertical plate 18.

[0041] Please refer to the reference. Figure 5 The upper surface of the arc-shaped support plate 12 is provided with several rectangular grooves extending in the left and right directions in a symmetrical manner. The rectangular grooves are fixedly provided with telescopic blocks 122 whose telescopic sections are inclined. The inclined directions of the two front and rear opposite telescopic blocks 122 are opposite. The upper surface of the arc-shaped support plate 12 is also provided with several sets of auxiliary rollers 126 in the left and right directions. Each set of auxiliary rollers 126 includes three auxiliary rollers 126, and the auxiliary rollers 126 are located between two front and rear opposite telescopic blocks 122. The arc-shaped through groove 121 is provided with two roller shafts, and the two ends of the roller shafts are fixedly connected to the support plate 1.

[0042] In actual operation, the bottom plate 5 of the box column is first pushed along the arc-shaped support plate 12 by the external conveying equipment. The resistance to the bottom plate 5 moving to the right is reduced by several sets of rotating auxiliary rollers 126 set on the arc-shaped support plate 12, and finally the right end of the bottom plate 5 comes into contact with the rectangular baffle 17.

[0043] Please refer to the reference. Figure 6 , Figure 8 and Figure 9The limiting part 3 includes L-shaped support plates 31 that are slidably arranged on the support plate 1 in a front-to-back symmetrical manner. A drive group 32 for driving the L-shaped support plates 31 to move closer and further apart is provided below the two L-shaped support plates 31. An auxiliary part 33 for installing the box-shaped column side plate is provided on the front side wall of the front L-shaped support plate 31. An auxiliary part 34 for cooperating with the auxiliary part 33 is also provided below the two L-shaped support plates 31.

[0044] Please refer to the reference. Figure 7 and Figure 8 The L-shaped support plate 31 is divided into a horizontal alignment section and a vertical pushing section that is slidably set on the alignment section. The side wall of the two alignment sections that are close to each other is set in an inclined shape to cooperate with the inclined surface of the telescopic stop 122. Several sliding grooves 311 are opened in the left and right direction on the upper end surface of the alignment section. Several round rollers 312 are arranged between two adjacent sliding grooves 311. The pushing section is set on the alignment section by several springs fixed inside the sliding grooves 311. Several telescopic vertical plates 313 with inclined surfaces at the top are staggered on the side wall of the two pushing sections. The telescopic vertical plates 313 on the same pushing section have the same inclination direction.

[0045] Please refer to the reference. Figure 6 and Figure 7 The drive assembly 32 includes a rotary motor 321 fixedly mounted on the upper surface of the connecting plate 131. An adjusting gear 322 rotatably connected to the support plate 1 is fixedly mounted on the outer wall of the output shaft of the rotary motor 321. Racks 323 are mounted on the left and right sides of the adjusting gear 322, which slide on the lower surface of the support plate 1 and are always meshed with the adjusting gear 322. The two racks 323 are respectively fixedly connected to the corresponding L-shaped support plate 31 through the connecting telescopic block that passes through the strip groove 16.

[0046] After the right end of the base plate 5 is pressed against the rectangular baffle 17, the two side plates of the box column are placed on the alignment section of the L-shaped support plate 31 by the external conveying equipment and pushed to the right. At this time, the side plates reduce frictional resistance under the action of the round roller 312 on the pushing section of the L-shaped support plate 31 and also come into contact with the rectangular baffle 17 on the right side.

[0047] The control rotary motor 321 drives the adjusting gear 322 to rotate. When the adjusting gear 322 rotates, the racks 323 on both sides drive the L-shaped bearing plates 31 connected to each other to slide along the strip groove 16 and move closer to each other. The alignment section of the L-shaped bearing plate 31 is engaged with the auxiliary roller 126 on the telescopic block 122 through the contact of the inclined surface, causing the telescopic block 122 to retract. Then, the alignment section of the L-shaped bearing plates 31 on both sides contacts the front and rear side walls of the bottom plate 5. The bottom plate 5 is synchronously pushed and aligned by the alignment section of the L-shaped bearing plate 31. At this time, several telescopic vertical plates 313 set on the pushing section of the two L-shaped bearing plates 31 are staggered above the bottom plate 5. Then, the partition of the box column is placed between the two telescopic vertical plates 313 in sequence.

[0048] It should be noted that, for reference Figure 14 The upper and lower side walls of the box-shaped column partition are symmetrically provided with U-shaped grooves with openings facing away from each other, and a circular groove 1 is provided at the center of the end face of the partition. The end face of the partition is also provided with four circular grooves 2 along the circumference. The four circular grooves 2 are arranged around the circular groove 1. When the partition is placed between the two telescopic vertical plates 313, the two U-shaped grooves should be located on the upper and lower sides of the partition, so that the U-shaped groove on the lower side is in close contact with the bottom plate 5.

[0049] Please refer to the reference. Figure 8 The mounting plate 2 is further provided with a sliding groove 22 connected to the sliding groove 21 along the vertical direction. The left and right side walls of the sliding groove 22 are provided with trapezoidal grooves, and the inclined surfaces of the two trapezoidal grooves are opposite to each other. A wedge-shaped top block 23 with an inclined surface at the lower end is slidably arranged inside the sliding groove 22. The left and right side walls of the wedge-shaped top block 23 are fixedly provided with telescopic trapezoidal blocks 24 corresponding to the sliding groove 22. The inclined surface below the telescopic trapezoidal block 24 is provided with a rolling shaft that cooperates with the sliding groove 22.

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

[0051] Please refer to the reference. Figure 10 , Figure 11 and Figure 12The welding part 4 includes a cross-shaped plate 41 slidably disposed inside two sliding grooves 21 via an electric slider. The sidewalls of the two cross-shaped plates 41 that are far apart are equipped with electromagnets. The upper surface of each cross-shaped plate 41 has two sliding through grooves 42 extending in the left-right direction and one sliding through groove 43 extending in the front-back direction. The sliding through groove 43 passes through both sliding through grooves 42. Two sliding blocks 44 are slidably disposed symmetrically in the sliding through groove 43. The upper surface of each sliding block 44 is provided with a discharge-holding mechanism. Below the slag receiving bucket 45, a guide frustum 46 communicating with the receiving bucket 45 is provided. The end face of the guide frustum 46 is provided with several material dropping grooves 461 along the circumferential direction. Two telescopic arc plates 462 are fixedly provided on the lower end face of the guide frustum 46. The two telescopic arc plates 462 are combined to form a complete annular shell. The several material dropping grooves 461 are located inside the annular shell. A welding head 47 with multiple degrees of freedom of rotation on the lower end face is also fixedly provided at the center of the guide frustum 46. The welding head 47 is also located in the annular shell.

[0052] Please refer to the reference. Figure 4 , Figure 6 and Figure 9 A plurality of teeth 123 are fixedly provided along the arc-shaped outer wall of one end of the arc-shaped support plate 12 corresponding to the clearance groove 19. A reciprocating motor 124 is fixedly provided below the teeth 123 by an L-shaped plate. The output shaft of the reciprocating motor 124 is rotatably connected to the vertical plate 18, and a drive gear 125 that always meshes with the teeth 123 is fixedly provided on the outer wall of the output shaft of the reciprocating motor 124.

[0053] When the 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 auxiliary blocks 333 on both sides respectively located in the corresponding sliding grooves 22. Then, the power supply of the electromagnet on the cross plate 41 is turned on, and the two ends of the cross plate 41 are fixed to the wedge-shaped top block 23 by magnetic attraction. The electric sliders on both sides are controlled to slide down along the sliding groove 21. At this time, through the cooperation of the rolling shaft 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 down, they will push the roller shaft 334 on the auxiliary block 333 synchronously, and make the auxiliary blocks 333 on both sides drive the pushing section of the L-shaped bearing plate 31 to move closer synchronously.

[0054] When the pushing sections on both sides approach each other 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 abut. Then, the welding head 47, which controls the multiple degrees of freedom, first performs spot welding on the joints between the bottom plate 5 and the partition, and between the partition and the side plate. At the same time as welding, the electric sliders on both sides of the square block 331 are controlled to move upward synchronously. By adjusting the different pushing positions of the L-shaped bearing plate 31 against the box column, the abutting 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 subjected to external forces and thus shift position when a single abutting is applied.

[0055] After the spot welding of the welding head 47 is completed, the control rotary motor 321 is reversed and the L-shaped bearing plates 31 on both sides are moved away from each other. At the same time, the control electric slider drives the cross plate 41 and the wedge top block 23 to move upward, so that the wedge top block 23 is stuck in the trapezoidal grooves on both sides. At this time, the power supply of the electromagnet is disconnected, and the electric slider continues to drive the cross plate 41 to move downward.

[0056] The reciprocating motor 124 drives the drive gear 125 to rotate. When the drive gear 125 rotates, it meshes with the arc-shaped support plate 12, causing the arc-shaped support plate 12 to rotate along the arc-shaped through groove 121 within the arc-shaped groove 11. After the base plate 5, partition plate, and side plate that have been spot-welded have rotated to a certain angle, the rotation of the arc-shaped support plate 12 stops. At this time, the upper welding head 47 is controlled to complete the welding of the inner corner of the left side plate and the outer corner of the right side plate and the base plate 5. Then, the reciprocating motor 124 drives the drive gear 125 to reverse, causing the base plate 5, partition plate, and side plate above the arc-shaped support plate 12 to rotate to another direction. Finally, the above welding steps are repeated to complete the welding of the base plate 5, partition plate, and side plate.

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

[0058] Please refer to the reference. Figure 5 , Figure 6 , Figure 8 and Figure 9The auxiliary part 33 further includes a telescopic push rod 335 fixedly installed inside the front auxiliary block 333. The telescopic section of the telescopic push rod 335 passes through the auxiliary block 333 and the L-shaped support plate 31, and a strip-shaped push plate 336 is fixedly installed at the end of the telescopic section. The auxiliary part 34 includes a hydraulic push rod 341 fixedly installed on the upper surface of the connecting plate 131. The telescopic section of the hydraulic push rod 341 is fixedly installed with an upward-facing C-shaped frame 342. The two vertical sections of the C-shaped frame 342 are respectively located in two rectangular through slots 14. The auxiliary part 34 also includes several rollers 343 that are rotatably installed inside the mounting slot 15 in the left and right direction.

[0059] After the base plate 5, partition plate and side plate of the box column are all welded, the reciprocating motor 124 is controlled to drive the arc-shaped support plate 12 to rotate to the initial position. Then, the cover of the box column is pushed to the two side walls that have been welded through the external conveying equipment, so that the right end of the cover is in contact with the rectangular baffle 17. Then, the rotary motor 321 is controlled to drive the adjusting gear 322 to rotate. At this time, the L-shaped support plates 31 on both sides approach each other synchronously and the cover is aligned with the part of the box column that has been welded through several telescopic vertical plates 313. Then, the welding heads 47 on both sides are controlled to weld and fix the joint between the cover and the side plate synchronously.

[0060] It should be noted that when the welding heads 47 on both sides slide along their respective sliding grooves 21 and weld at the joint between the cover plate and the partition, the welding heads 47 skip the partition position and leave a pre-weld hole.

[0061] After the cover plate and side plate are welded, the rotary motor 321 is started to reverse and make the L-shaped support plates 31 on both sides move away from each other. Then, the hydraulic push rod 341 on the connecting plate 131 is controlled to drive the C-shaped frame 342 to extend. The two vertical sections of the C-shaped frame 342 extend synchronously and push the box column upward, causing the box column to gradually tilt and flip. When the box column flips to a certain angle, the telescopic push rod 335 is controlled to drive the strip push plate 336 to extend and push the box column, thereby assisting the box column to complete a 90-degree flip.

[0062] Next, the L-shaped support plates 31 on both sides are brought closer together again to complete the centering and alignment of the box column. The welding head 47 is moved to the top of the pre-welding hole and moved downward by the electric slider so that the annular shell and the end face of the box column make contact and fit, and the pre-welding hole is located in the annular shell. At this time, the welding heads 47 on both sides move downward and fall into the corresponding pre-welding holes. The material receiving bucket 45 is opened and the electroslag is guided into the pre-welding hole through the material drop chute 461. Finally, the partition is welded to the bottom plate 5 and the cover plate by electroslag welding. Repeating the above steps can complete the welding of multiple partitions.

[0063] It should be noted that when the box column is flipped, the telescopic stop 122 located on the rear side can prevent the box column from slipping. At the same time, during the flipping process, the rotary motor 321 is started to drive the L-shaped support plates 31 on both sides to slowly move closer to each other. The telescopic vertical plates 313 on both sides adjust the position of the box column on the arc support plate 12 to ensure that the box column is still located in the center of the arc support plate 12 after the flipping is completed.

[0064] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, in the description of the present invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0065] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0066] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic welding equipment for prefabricated building steel structures, comprising a support plate, characterized in that: The support plate is symmetrically provided with mounting plates with sliding grooves on the end face. A limiting part for limiting the bottom plate of the box column is provided between the two mounting plates. A welding part is provided above the limiting part and between the two mounting plates. The upper end face of the support plate is provided with an arc-shaped groove in the left and right direction. An arc-shaped support plate is slidably arranged inside the arc-shaped groove. The side wall of the arc-shaped support plate is provided with an arc-shaped through groove in the left and right direction. The upper end face of the arc-shaped support plate is provided with several rectangular grooves extending in the left and right direction in a symmetrical manner. A telescopic block with an inclined surface is fixedly arranged inside the rectangular groove. The inclined surfaces of two telescopic blocks that are opposite to each other in the front and back are inclined in opposite directions. The limiting part includes L-shaped support plates that are symmetrically slidably arranged in front and back. A drive group for driving them to move relative to each other is provided below the two L-shaped support plates. An auxiliary part one is provided on the front side wall of the front L-shaped support plate. An auxiliary part two that works in conjunction with the auxiliary part one is also provided below the two L-shaped support plates. The L-shaped support plate is divided into a horizontal alignment section and a vertical pushing section that is slidably set on the alignment section. The side wall of the two alignment sections that are close to each other is set as an inclined surface that cooperates with the inclined surface of the telescopic stop block. The upper end surface of the alignment section is provided with several sliding grooves in the left and right direction. Several round rollers are set between adjacent sliding grooves. The pushing section is set on the alignment section by several springs fixed in the sliding grooves. Several telescopic vertical plates with inclined surfaces at the top are staggered on the side wall of the two pushing sections that are close to each other. The mounting plate is further provided with a sliding groove two that is connected to the sliding groove one along the vertical direction. The left and right side walls of the sliding groove two are provided with trapezoidal grooves, 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 sliding groove two. Telescopic trapezoidal blocks are fixedly arranged on the left and right side walls of the wedge-shaped top block corresponding to the sliding groove two. A rolling shaft that cooperates with the sliding groove two is provided on the inclined surface below the telescopic trapezoidal block. The auxiliary part one includes a square block that is slidably disposed inside a sliding groove one via an electric slider. A telescopic plate is fixedly disposed on one side wall of the square block near the L-shaped support plate. The other end of the telescopic plate is fixedly connected to the L-shaped support plate. An auxiliary block is disposed above the telescopic plate, penetrating the square block and the mounting plate and fixedly connected to the L-shaped support plate. A roller shaft two that cooperates with a wedge-shaped top block is rotatably disposed on the side of the auxiliary block away from the L-shaped support plate. The auxiliary part one also includes a telescopic push rod fixedly disposed inside the front auxiliary block. The telescopic section of the telescopic push rod penetrates the auxiliary block and the L-shaped support plate, and a strip push plate is fixedly disposed at the end of the telescopic section.

2. The automatic welding equipment for prefabricated building steel structures according to claim 1, characterized in that: The lower end face of the support plate is fixedly provided with a support plate in a symmetrical manner. A connecting plate is fixedly provided between the two support plates. The upper end face of the support plate is symmetrically provided with a rectangular through groove and an installation groove on the left and right sides of the arc-shaped support plate. The upper end face of the support plate is also provided with a strip-shaped through groove. There are two strip-shaped through grooves, which are staggered on the front and rear sides of the arc-shaped support plate. A rectangular baffle is fixedly provided on the upper end face of the right side of the support plate. The lower end face of the right side of the support plate is provided with a clearance groove for setting an upright plate inside.

3. The automatic welding equipment for prefabricated building steel structures according to claim 2, characterized in that: The drive assembly includes a rotary motor fixedly mounted on the upper surface of the connecting plate. An adjusting gear that is rotatably connected to the support plate is fixedly mounted on the outer wall of the output shaft of the rotary motor. On the left and right sides of the adjusting gear, racks that slide on the lower surface of the support plate and are always engaged with the adjusting gear are provided. The two racks are respectively fixedly connected to the corresponding L-shaped support plate through a connecting telescopic block that passes through the strip groove.

4. The automatic welding equipment for prefabricated steel structures according to claim 2, characterized in that: The arc-shaped support plate has several teeth fixedly arranged along its arc-shaped outer wall at one end corresponding to the clearance groove. A reciprocating motor is fixedly arranged below the teeth via an L-shaped plate. The output shaft of the reciprocating motor is rotatably connected to the vertical plate, and a drive gear that always meshes with the teeth is fixedly arranged on the outer wall of the output shaft of the reciprocating motor. Several sets of auxiliary rollers are also arranged on the upper end face of the arc-shaped support plate along the left and right direction. Each set of auxiliary rollers includes three auxiliary rollers, and the auxiliary rollers are located between two opposing telescopic blocks. Two roller shafts are arranged in the arc-shaped through groove, and the two ends of the roller shafts are fixedly connected to the support plate respectively.

5. The automatic welding equipment for prefabricated building steel structures according to claim 1, characterized in that: The welding section includes a cross-shaped plate slidably disposed inside two sliding grooves via an electric slider. The side walls of the two cross-shaped plates that are far apart are provided with electromagnets. The upper end face of the cross-shaped plate has two sliding through grooves extending in the left-right direction and one sliding through groove extending in the front-back direction. The sliding through groove 2 passes through the two sliding through grooves. Two sliding blocks are slidably disposed in the sliding through groove 2 in a front-back symmetrical manner. The upper end face of the sliding block is provided with a material receiving bucket for holding slag. The lower end face of the sliding block is provided with a guide frustum communicating with the material receiving bucket. The lower end face of the guide frustum is fixedly provided with two telescopic arc plates. The two telescopic arc plates are combined to form a complete annular shell. The lower end of the guide frustum is also provided with a welding head.

6. The automatic welding equipment for prefabricated building steel structures according to claim 2, characterized in that: The auxiliary part two includes a hydraulic push rod fixedly mounted on the upper surface of the connecting plate. The telescopic section of the hydraulic push rod is fixedly mounted with an upward-facing C-shaped frame. The two vertical sections of the C-shaped frame are respectively located in two rectangular through slots. The auxiliary part two also includes several rollers three that are rotatably mounted inside the mounting slot in the left-right direction.

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

8. The automatic welding equipment according to claim 5, characterized in that: The end face of the guiding frustum is provided with a material dropping groove along the circumference. The material dropping groove is located inside the annular shell composed of telescopic arc plates. The welding head is located at the center of the annular shell and the welding of the pre-welded hole of the partition plate is completed by electroslag welding.

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