Fabricated steel structure building weld joint welding equipment

Abstract

The invention relates to the technical field of building steel structure welding, in particular to assembly type steel structure building weld joint welding equipment which comprises a standby frame, a center installation mechanism is arranged on the inner side of the equipment frame, the centers of the two ends of the center installation mechanism are rotationally connected with the equipment frame, and two parallel shafts are rotationally installed on the center installation mechanism in a penetrating mode; wherein the outer side of one parallel shaft is provided with a suction cup supporting mechanism capable of adsorbing and fixing materials, the suction cup supporting mechanism is communicated with the interiors of the parallel shafts connected with the suction cup supporting mechanism, the parallel shafts connected with the suction cup supporting mechanism are communicated with an air exhaust mechanism for inflating the interiors of the parallel shafts, and the outer side of the other parallel shaft is provided with an upper supporting frame. The positions of the placed steel structures can be fixed through suction force through the suction cup supporting mechanism, the center mounting mechanism is controlled to rotate by half cycle to turn over, the suction cup supporting mechanism is controlled to rotate to be separated from the steel structures, welding seams on the other sides of the steel structures can be welded, and welding seams among the multiple steel structures can be welded at a time.

Description

Technical Field

[0001] This invention relates to the technical field of welding of building steel structures, and in particular to a welding equipment for welded seams in prefabricated steel structure buildings. Background Technology

[0002] Steel structure construction is a new type of building system that breaks down the boundaries between the real estate, construction, and metallurgical industries, integrating them into a new industrial system. Compared to traditional concrete buildings, steel structure buildings use steel plates or profiles instead of reinforced concrete, resulting in higher strength and better earthquake resistance. Because components can be factory-fabricated and installed on-site, construction time is significantly reduced. Furthermore, the reusability of steel greatly reduces construction waste, making it more environmentally friendly. During the assembly and construction of steel structure buildings, the butt joints of steel components such as profiles need to be welded, thus requiring the use of plasma arc welding equipment.

[0003] Plasma arc welding is a welding process that uses a plasma arc as a heat source. The arc passes through a water-cooled nozzle channel and is subjected to mechanical compression, thermal contraction, and magnetic contraction effects, forcing the arc column cross-section to shrink, increasing the current density, and enhancing the arc column ionization, thereby obtaining a more concentrated ionic arc with temperatures reaching 10,000 to 30,000℃. Plasma arc welding is mainly used for welding carbon steel, low-temperature steel, heat-resistant steel, stainless steel, copper and its alloys, and nickel and its alloys.

[0004] Chinese patent CN120190565A discloses an automatic welding equipment for prefabricated steel structures, including a support plate. The support plate has 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 provided 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 tightening 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 tightened state before welding. When welding the joint using the welding part, the alignment section of the L-shaped support plate is adjusted by moving an electric slider. The position of the side plate increases the clamping force at the welding points of the side plate, bottom plate, and partition plate during welding, restricting the free deformation of the workpiece and thus reducing welding deformation. It also avoids situations where other parts are subjected to external forces and thus shift in position when clamped alone. The above-mentioned related technologies have the following defects: In the welding of building steel structures, a large number of steel structures are fixed by welding at one time, and the welding angle between steel structures varies depending on the requirements. In the welding of existing technologies, two steel structures are generally fixed and welded by clamping equipment, and then welded at the end. The welding efficiency is slow, and it is inconvenient to clamp steel structures with different angles and it is inconvenient to perform double-sided welding. Summary of the Invention

[0005] In order to place and fix steel structures with different angles that need to be welded in one go, the present invention provides a welding equipment for prefabricated steel structure buildings.

[0006] The present invention provides a welding equipment for prefabricated steel structure buildings, which adopts the following technical solution: it includes an equipment frame, a central mounting mechanism is provided on the inner side of the equipment frame, the two ends of the central mounting mechanism are rotatably connected to the center of the equipment frame, a power mechanism for driving the rotation of the central mounting mechanism is installed on the outer side of the equipment frame, and two parallel shafts are rotatably installed through the central mounting mechanism.

[0007] One of the parallel shafts has a suction cup support mechanism installed on its outer side, which can adsorb and fix the material. The suction cup support mechanism has a cavity inside and is connected to the parallel shaft. The parallel shaft connected to the suction cup support mechanism is connected to an air pumping mechanism that inflates the inside of the shaft. The other parallel shaft has an upper support frame installed on its outer side, and the central mounting mechanism has a transmission mechanism that controls the rotation of the parallel shaft.

[0008] Optionally, the central mounting mechanism includes two side plates and two central shafts. The two central shafts are fixedly installed at the center of the two side plates at their respective ends, which are far apart from each other. The two central shafts are coaxially arranged, and the two ends of the parallel shaft are rotatably connected to the two side plates respectively. The two central shafts rotate through the inner wall of the equipment frame at their respective ends, and the power mechanism is coaxially fixed with one of the central shafts.

[0009] Optionally, the suction cup support mechanism includes a support box, which is fixedly sleeved on the outer surface of adjacent parallel shafts. The support box is located between two side plates and is connected to the parallel shafts. A hollow suction cup is provided on the side of the support box near the central shaft, and the hollow suction cup and the connecting mechanism are connected and installed in communication with the support box.

[0010] Optionally, the transmission mechanism includes a worm gear meshing assembly and a gear. The worm gear meshing assembly is mounted on the surface of an adjacent side plate. One end of the parallel shaft is coaxially mounted with the worm gear portion of the corresponding worm gear meshing assembly. The gear is coaxially mounted with the worm portion of the worm gear meshing assembly. A toothed plate meshes with the side plate near the toothed plate. An elastic telescopic rod is fixed at the axis of the toothed plate, and the other end of the elastic telescopic rod is mounted on the outer surface of an adjacent side plate.

[0011] Optionally, a round rod is coaxially mounted on the end of the toothed plate away from the center of the equipment frame, and an arc-shaped top plate is provided on the inner side of the equipment frame. A horizontal telescopic rod is fixed to the end of the arc-shaped top plate away from the center of the equipment frame. The horizontal telescopic rod is fixedly installed with the equipment frame. The arc-shaped top plate is located on the side of the round rod away from the center of the equipment frame, and the arc axis of the arc-shaped top plate is coaxial with the central axis.

[0012] Two round rods are evenly distributed in a circular array around the central axis, and the distance between the axis of the round rod and the axis of the central axis is equal to the distance between the center of the arc top plate and the axis of the central axis.

[0013] Optionally, the air extraction mechanism includes an air pump and an air transmission cylinder. One end of the air transmission cylinder is rotatably connected to an adjacent parallel shaft, and the other end of the air transmission cylinder is connected to the air pump. A partition is provided inside the air transmission cylinder, and an eccentric through hole is eccentrically opened on the end face of the partition. An eccentric circular hole is eccentrically opened on the end face of the parallel shaft located inside the air transmission cylinder. The distance between the eccentric circular hole and the axis of the parallel shaft is equal to the distance between the eccentric through hole and the axis of the parallel shaft. The air transmission cylinder is connected to an adjacent side plate.

[0014] Optionally, the two side plates are arranged in an isosceles trapezoidal recess on the side away from each other, and a pressure push plate is provided on the side of the two side plates away from each other. A trapezoidal support block is provided on the inner side of the trapezoidal recess of the side plate. The trapezoidal support block is fixed to the adjacent pressure push plate. A power telescopic rod is fixed on the side of the pressure push plate away from the side plate, and the other end of the power telescopic rod is fixed to the equipment frame.

[0015] Optionally, both the support box and the upper support frame are fixed with an extended force plate near the end of the arc top plate. The side plates adjacent to the arc top plate are provided with bent support plates on both the upper and lower sides. The distance between the bent support plate and the corresponding side plate is equal to the thickness of the extended force plate. The bent support plate is fixed with the connected pressure push plate.

[0016] Optionally, the connecting mechanism includes an inner tube and an outer tube. The outer tube is installed through the support box on the side near the central axis. One end of the inner tube is slidably inserted into the inside of the outer tube, and the other end of the inner tube is connected to the hollow suction cup. The inner tube and the outer tube are elastically connected. The hollow suction cup has a through hole at its axis. The outer tube has multiple ventilation slots at one end inside the support box. The outer ring surface of the inner tube has multiple connecting slots that communicate with the interior. The multiple connecting slots and the multiple ventilation slots are arranged vertically in a one-to-one correspondence.

[0017] Optionally, a lever plate is provided between the arc top plate and the adjacent side plate, and the lever plate is fixedly installed with the adjacent pressure push plate.

[0018] In summary, the present invention has the following beneficial technical effects:

[0019] 1. This invention, by setting up a central mounting mechanism, a suction cup support mechanism, and an upper support frame, allows for the welding of disparate steel structures together. The steel structures to be welded are placed on the upper side of the suction cup support mechanism according to their shape. The suction cup support mechanism uses suction to fix the placed steel structures in position. After welding one side of the steel structure, the upper support frame is controlled by a transmission mechanism to press the upper side of the steel structure firmly. The central mounting mechanism is controlled to rotate half a revolution and flip, and the suction cup support mechanism is controlled to rotate and detach from the steel structure, allowing welding to be performed on the other side of the steel structure. This enables the simultaneous welding of welds between multiple steel structures.

[0020] 2. By setting up components such as an extended load-bearing plate, a bent support plate, and a trapezoidal support block, the present invention controls the cooperation between the trapezoidal support block and the side plate during welding to support the side plate and provide stable horizontal support for the side plate. At the same time, it drives the bent support plate to support the extended load-bearing plate, thereby supporting the support box and the upper support frame, and providing stable horizontal support for the steel structure.

[0021] 3. This invention, by setting up components such as an arc-shaped top plate, a round rod, and a lever plate, allows the toothed plate corresponding to the round rod, which does not contact the arc-shaped top plate, to drive the connected support box and upper support frame to a horizontal state through gear meshing and worm gear meshing components under the action of the elastic telescopic rod. When the side plate is horizontal, the support box and upper support frame remain horizontal when they are below the side plate. When the support box and upper support frame are above the side plate, they rotate within the range above the side plate, allowing the welding structure to weld to the steel structure above the support box or upper support frame. Before the side plate rotates, the pressure push plate is controlled to move away from the corresponding side plate, and the lever plate moves the arc-shaped top plate away from the round rod. During the rotation of the side plate, the upper support frame and support box remain horizontal, limiting the steel structure between them.

[0022] 4. This invention, by setting up components such as an outer tube, an inner tube, a connecting groove, and a ventilation groove, allows the steel structure to be placed on the upper side of the support box. The steel structure applies pressure to the hollow suction cups it contacts, pushing the corresponding inner tube to move inward toward the inner side of the outer tube. Under the pressure of the steel structure, the inner tube moves downward, causing the connecting groove and the ventilation groove to connect, allowing the hollow suction cups to adhere to the upper steel structure. The hollow suction cups that are not in contact with the steel structure do not leak air due to the elastic connection between the corresponding inner and outer tubes, while the hollow suction cups that are in contact with the steel structure have sufficient suction force to apply stable adsorption to the steel structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection between the parallel shaft and the side plate in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the distribution of eccentric through holes and eccentric circular holes in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the bent support plate structure in an embodiment of the present invention;

[0027] Figure 5 This is a front view schematic diagram of some structures in an embodiment of the present invention;

[0028] Figure 6 This is a side view schematic diagram of some structures in an embodiment of the present invention;

[0029] Figure 7This is a schematic diagram of the distribution of the dial plate and the arc top plate in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the connection between the inner tube and the outer tube in an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the connection between the toothed plate and the elastic telescopic rod in an embodiment of the present invention.

[0032] Reference numerals: 1. Equipment frame; 2. Parallel shaft; 3. Central mounting mechanism; 31. Side plate; 311. Pressure push plate; 312. Trapezoidal support block; 313. Power telescopic rod; 314. Extended load-bearing plate; 315. Bending support plate; 32. Central shaft; 4. Power mechanism; 5. Suction cup support mechanism; 51. Support box; 52. Hollow suction cup; 53. Connecting mechanism; 531. Inner tube; 532. Outer tube; 533. Ventilation slot; 534. Connecting slot; 6. Upper support frame; 7. Air extraction mechanism; 71. Air pump; 72. Air transmission cylinder; 73. Partition plate; 74. Eccentric circular hole; 75. Eccentric through hole; 8. Transmission mechanism; 81. Worm gear meshing assembly; 82. Gear; 83. Gear plate; 84. Elastic telescopic rod; 85. Round rod; 86. Arc top plate; 861. Pulley plate; 87. Horizontal telescopic rod. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0034] This invention discloses a welding device for welded seams in prefabricated steel structure buildings. For example... Figures 1-9 As shown, the device includes a frame 1, with equipment legs mounted on both sides of the frame 1 to suspend it. A central mounting mechanism 3 is provided on the inner side of the frame 1, with the center of both ends of the central mounting mechanism 3 rotatably connected to the frame 1. A power mechanism 4 is installed on the outer side of the frame 1 to drive the central mounting mechanism 3 to rotate. Two parallel shafts 2 are rotatably installed through the central mounting mechanism 3.

[0035] The central mounting mechanism 3 includes two side plates 31 and two central shafts 32. The two central shafts 32 are fixedly installed at the center of the two side plates 31 at their respective ends. The two central shafts 32 are coaxially arranged. The two ends of the parallel shaft 2 are rotatably connected to the two side plates 31. The two central shafts 32 rotate through the inner wall of the equipment frame 1 at their respective ends. The power mechanism 4 is coaxially fixed with one of the central shafts 32. The power mechanism 4 is preferably a motor. The motor is installed on the outside of the equipment frame 1. The output end of the motor is connected to the central shaft 32 through a coupling. Each time the motor is started, it drives the central shaft 32 to rotate half a revolution, causing the side plate 31 to flip once.

[0036] A plasma arc welding head is provided on the upper side of the equipment frame 1. A drive mechanism is installed on the upper side of the equipment frame 1 to control the up and down movement and the movement within the planar space of the plasma arc welding head. The plasma arc welding head can rotate to weld seams on different sides, and the arc welding head can move within the space on the upper side of the equipment frame 1, which can be used to weld seams on the upper side and off-side of the steel structure.

[0037] One of the parallel shafts 2 has a suction cup support mechanism 5 installed on its outer side, which can adsorb and fix materials. The suction cup support mechanism 5 can generate suction force to fix the steel structure it contacts. The suction cup support mechanism 5 has a hollow cavity inside and is connected to the interior of the connected parallel shaft 2. The suction cup support mechanism 5 includes a support box 51, which is fixedly sleeved on the outer surface of the adjacent parallel shaft 2. The support box 51 is located between two side plates 31 and is connected to the connected parallel shaft 2. A hollow suction cup 52 is provided on the side of the support box 51 near the central shaft 32. The hollow suction cup 52 and the connecting mechanism 53 are connected and installed to the support box 51. The hollow suction cup 52 generates suction force to fix the steel structure it contacts. Before the first welding of the steel structure, the steel structure to be welded is placed on the upper side of the support box 51 according to the required shape. After the hollow suction cup 52 generates suction force, it can fix the position of all the steel structures at the same time, so that the welding mechanism can weld one side of all the steel structures at one time.

[0038] The connecting mechanism 53 includes an inner tube 531 and an outer tube 532. The outer tube 532 is installed through the support box 51 near the central axis 32. One end of the inner tube 531 is slidably inserted into the outer tube 532, and the other end of the inner tube 531 is connected to the hollow suction cup 52. The inner tube 531 and the outer tube 532 are elastically connected. The elastic connection between the inner tube 531 and the outer tube 532 is preferably a telescopic rod or spring that can elastically extend and retract, which has the tendency to push the inner tube 531 to move upward relative to the outer tube 532. The elasticity between the inner tube 531 and the outer tube 532 can only support the hollow suction cup 52 and the inner tube 531. After the steel structure is placed on the upper side of the hollow suction cup 52, the steel... The structure can press the hollow suction cup 52 to the lowest side. The hollow suction cup 52 has a through hole at its axis. The outer tube 532 is located inside the support box 51 and has multiple ventilation slots 533 at one end. The outer ring surface of the inner tube 531 has multiple connecting slots 534 that connect to the interior. The multiple connecting slots 534 and the multiple ventilation slots 533 are arranged vertically in a one-to-one correspondence. After the inner tube 531 moves to the lowest side of the outer tube 532, the connecting slots 534 can connect with the corresponding connecting slots 534 on the lower side. The corresponding hollow suction cup 52 can adsorb the steel structure it contacts, while the hollow suction cups 52 that do not contact the steel structure do not connect with the interior of the support box 51, ensuring that there is sufficient suction force inside the support box 51.

[0039] A suction mechanism 7 for inflating the parallel shaft 2, which is connected to the suction cup support mechanism 5, is installed in the parallel shaft 2. The suction mechanism 7 includes an air pump 71 and an air transmission cylinder 72. One end of the air transmission cylinder 72 is rotatably connected to the adjacent parallel shaft 2, and the other end of the air transmission cylinder 72 is connected to the air pump 71. A partition 73 is provided inside the air transmission cylinder 72. An eccentric through hole 75 is eccentrically opened on the end face of the partition 73. An eccentric circular hole 74 is eccentrically opened on the end face of the parallel shaft 2 located inside the air transmission cylinder 72. The distance between the eccentric circular hole 74 and the axis of the parallel shaft 2 is equal to the distance between the eccentric through hole 75 and the axis of the parallel shaft 2. The air transmission cylinder 72 is connected to the adjacent side plate 31. When the support box 51 is parallel to the side plate 31, the eccentric circular hole 74 is connected to the eccentric through hole 75. The air pump 71 provides suction to the corresponding parallel shaft 2 through the air transmission cylinder 72, the eccentric through hole 75, and the eccentric circular hole 74.

[0040] Another parallel shaft 2 has an upper support frame 6 installed on its outer side, and a transmission mechanism 8 for controlling the rotation of the parallel shaft 2 is installed in the central mounting mechanism 3.

[0041] The transmission mechanism 8 includes a worm gear meshing assembly 81 and a gear 82. The worm gear meshing assembly 81 is mounted on the surface of an adjacent side plate 31. The worm gear meshing assembly 81 consists of a meshing worm wheel and a worm. One end of the parallel shaft 2 is coaxially mounted with the worm wheel portion of the corresponding worm gear meshing assembly 81. The gear 82 is coaxially mounted with the worm portion of the worm gear meshing assembly 81. A toothed plate 83 is meshed on the side of the toothed plate 83 near the side plate 31. An elastic telescopic rod 84 is fixed at the axis of the toothed plate 83. The other end of the elastic telescopic rod 84 is mounted on the outer surface of an adjacent side plate 31. The elastic telescopic rod 84 has a tendency to elastically extend. Then, the toothed plate 83 meshes with the gear 82. Through the transmission of the worm gear meshing assembly 81, the upper support frame 6 and the support box 51 connected to it are driven to be parallel to the side plate 31 via the parallel shaft 2.

[0042] A round rod 85 is coaxially mounted on the toothed plate 83 at one end away from the center of the equipment frame 1. An arc-shaped top plate 86 is provided on the inner side of the equipment frame 1. One end of the arc-shaped top plate 86 is rounded, allowing the round rod 85 to slide from the rounded corner of the arc-shaped top plate 86 to the end face of the arc-shaped top plate 86. A horizontal telescopic rod 87 is fixed to the end of the arc-shaped top plate 86 away from the center of the equipment frame 1. The horizontal telescopic rod 87 is fixedly installed to the equipment frame 1 and has a tendency to elastically extend, tending to push the arc-shaped top plate 86 closer to the adjacent side plate 31. The elasticity of the horizontal telescopic rod 87 is greater than that of the elastic telescopic rod 84. When the round rod 85 moves to the end face of the arc-shaped top plate 86, it can... The circular rod 85 pushes the connected toothed plate 83. The arc top plate 86 is located on the side of the circular rod 85 away from the center of the equipment frame 1. The arc axis of the arc top plate 86 is coaxial with the central axis 32. As the side plate 31 drives the circular rod 85 to rotate around the central axis 32, the circular rod 85 can move to the end face of the arc top plate 86. When the circular rod 85 moves to the end face of the arc top plate 86, it can push the corresponding toothed plate 83 to compress the corresponding elastic telescopic rod 84. Through the worm gear meshing assembly 81 and the corresponding parallel shaft 2, it can drive the support box 51 or the upper support frame 6 on the upper side of the side plate 31 to rotate out of the upper range of the side plate 31, which is convenient for the arc welding head to perform welding processing.

[0043] Both side plates 31 have isosceles trapezoidal recesses on their opposite sides. Each side plate 31 has a pressure push plate 311 on its opposite side. A trapezoidal support block 312 is fitted on the inner side of the trapezoidal recess of the side plate 31. The trapezoidal support block 312 is fixed to the adjacent pressure push plate 311. A power telescopic rod 313 is fixed on the side of the pressure push plate 311 away from the side plate 31. The power telescopic rod 313 is an electric telescopic rod with a hydraulic cylinder that can extend and retract. It controls the pressure push plate 311 to move parallel to the side plate 31. During welding, it controls the pressure push plate 311 to push the trapezoidal support block 312 to cooperate with the trapezoidal recess of the side plate 31. The pressure push plate 311 assists in supporting the side plate 31 through the trapezoidal support block 312, improving the stability of the steel structure support. The other end of the power telescopic rod 313 is fixed to the equipment frame 1.

[0044] After the weld on one side of the assembled steel structure is completed, the side plate 31 is flipped half a turn, and the support box 51 rotates to the upper side of the steel structure. The upper support 6 on the lower side supports the steel structure. Since one side of the assembled steel structure has been welded, it is not easy to move relative to the upper support 6 under the weight of the steel structure. The weld head can stably weld to the other side of the assembled steel structure.

[0045] Two round rods 85 are evenly distributed in a circular array around the central axis 32. The distance between the axis of the round rod 85 and the axis of the central axis 32 is equal to the distance between the center of the arc top plate 86 and the axis of the central axis 32.

[0046] Both the support box 51 and the upper support frame 6 are fixed with an extended force-bearing plate 314 near the end of the arc-shaped top plate 86. The side plate 31 adjacent to the arc-shaped top plate 86 is provided with bent support plates 315 on both its upper and lower sides. The distance between the bent support plate 315 and the corresponding side plate 31 is equal to the thickness of the extended force-bearing plate 314. The bent support plate 315 is fixed to the connected pressure push plate 311. During welding, the trapezoidal support block 312 cooperates with the trapezoidal recessed structure of the side plate 31. At the same time, the pressure push plate 311 supports the extended force-bearing plate 314 on the lower side of the side plate 31 through the bent support plate 315, thus improving the upper support frame 6 connected to the corresponding lower extended force-bearing plate 314. The support box 51 provides stable support for the steel structure. A lever plate 861 is provided between the arc top plate 86 and the adjacent side plate 31. The lever plate 861 is fixedly installed with the adjacent pressure push plate 311. After welding one side, the pressure push plate 311 is controlled to move away from the corresponding side plate 31. The lever plate 861 moves the arc top plate 86 away from the round rod 85. The toothed plate 83 moves under the elastic telescopic rod 84, controlling the support box 51 or the upper support frame 6 located on the upper side of the side plate 31 to rotate parallel to the side plate 31. As the side plate 31 rotates with the central axis 32, the upper support frame 6 and the support box 51 can drive the steel structure between them to rotate half a turn.

[0047] The working principle is as follows: In the initial state, the suction cup support mechanism 5 is controlled to be horizontally positioned at the lower side, while the upper support frame 6 is controlled to rotate out of the upper position of the suction cup support mechanism 5. The steel structure to be welded is placed on the upper side of the suction cup support mechanism 5 according to its shape. The suction mechanism 7 provides suction to the suction cup support mechanism 5. The suction cup support mechanism 5 fixes the position of the placed steel structure with suction and welds on one side of the steel structure. After the welding of one side of the steel structure is completed, the transmission mechanism 8 controls the upper support frame 6 to rotate to a horizontal position to block the upper side of the steel structure. As the central mounting mechanism 3 rotates, the suction cup support mechanism 5 and the upper support frame 6 drive the steel structure to flip. The suction mechanism 7 is controlled to stop providing suction to the suction cup support mechanism 5, and the suction cup support mechanism 5 is controlled to rotate and detach from the steel structure, so that the weld on the other side of the steel structure can be welded.

[0048] The above are all 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. A welding equipment for prefabricated steel structure buildings, comprising an equipment frame (1), characterized in that: The equipment frame (1) is provided with a central mounting mechanism (3) on the inner side. The two ends of the central mounting mechanism (3) are rotatably connected to the equipment frame (1). The equipment frame (1) is provided with a power mechanism (4) that drives the central mounting mechanism (3) to rotate on the outer side. The central mounting mechanism (3) is rotatably connected with two parallel shafts (2). One of the parallel shafts (2) is equipped with a suction cup support mechanism (5) that can adsorb and fix the material. The suction cup support mechanism (5) is hollow inside. The suction cup support mechanism (5) is connected to the parallel shaft (2). The parallel shaft (2) connected to the suction cup support mechanism (5) is equipped with an air pumping mechanism (7) that inflates the inside. The other parallel shaft (2) is equipped with an upper support frame (6). The central mounting mechanism (3) is equipped with a transmission mechanism (8) that controls the rotation of the parallel shaft (2).

2. The welding equipment for prefabricated steel structure building welds according to claim 1, characterized in that: The central mounting mechanism (3) includes two side plates (31) and two central shafts (32). The two central shafts (32) are fixedly installed at the center of the two side plates (31) at their respective ends. The two central shafts (32) are coaxially arranged. The two ends of the parallel shaft (2) are rotatably connected to the two side plates (31). The two central shafts (32) rotate through the inner wall of the equipment frame (1) at their respective ends. The power mechanism (4) is coaxially fixed with one of the central shafts (32).

3. The welding equipment for prefabricated steel structure building welds according to claim 2, characterized in that: The suction cup support mechanism (5) includes a support box (51), which is fixedly sleeved on the outer surface of the adjacent parallel shaft (2). The support box (51) is located between two side plates (31). The support box (51) is connected to the parallel shaft (2). A hollow suction cup (52) is provided on the side of the support box (51) near the central shaft (32). The hollow suction cup (52) and the connecting mechanism (53) are connected and installed in the support box (51).

4. The welding equipment for prefabricated steel structure building welds according to claim 3, characterized in that: The transmission mechanism (8) includes a worm gear meshing assembly (81) and a gear (82). The worm gear meshing assembly (81) is mounted on the surface of an adjacent side plate (31). One end of the parallel shaft (2) is coaxially mounted with the worm gear part of the corresponding worm gear meshing assembly (81). The gear (82) is coaxially mounted with the worm part of the worm gear meshing assembly (81). A toothed plate (83) is meshed on the side of the toothed plate (31). An elastic telescopic rod (84) is fixed at the axis of the toothed plate (83). The other end of the elastic telescopic rod (84) is mounted on the outer surface of an adjacent side plate (31).

5. The welding equipment for prefabricated steel structure building welds according to claim 4, characterized in that: A round rod (85) is coaxially installed at one end of the toothed plate (83) away from the center of the equipment frame (1). An arc-shaped top plate (86) is provided on the inner side of the equipment frame (1). A horizontal telescopic rod (87) is fixed at one end of the arc-shaped top plate (86) away from the center of the equipment frame (1). The horizontal telescopic rod (87) is fixedly installed with the equipment frame (1). The arc-shaped top plate (86) is located on the side of the round rod (85) away from the center of the equipment frame (1). The arc axis of the arc-shaped top plate (86) is coaxial with the central axis (32). Two round rods (85) are evenly distributed in a circular array around the central axis (32). The distance between the axis of the round rod (85) and the axis of the central axis (32) is equal to the distance between the center of the arc top plate (86) and the axis of the central axis (32).

6. The welding equipment for prefabricated steel structure building welds according to claim 2, characterized in that: The air extraction mechanism (7) includes an air pump (71) and an air transmission cylinder (72). One end of the air transmission cylinder (72) is rotatably connected to the adjacent parallel shaft (2), and the other end of the air transmission cylinder (72) is connected to the air pump (71). A partition plate (73) is provided inside the air transmission cylinder (72). An eccentric through hole (75) is eccentrically opened on the end face of the partition plate (73). An eccentric circular hole (74) is eccentrically opened on the end face of the parallel shaft (2) located inside the air transmission cylinder (72). The distance between the eccentric circular hole (74) and the axis of the parallel shaft (2) is equal to the distance between the eccentric through hole (75) and the axis of the parallel shaft (2). The air transmission cylinder (72) is connected to the adjacent side plate (31).

7. The welding equipment for prefabricated steel structure building welds according to claim 5, characterized in that: The two side plates (31) are arranged in an isosceles trapezoidal concave shape on the side away from each other. A pressure push plate (311) is provided on the side away from each other of the two side plates (31). A trapezoidal support block (312) is provided on the inner side of the trapezoidal concave side of the side plate (31). The trapezoidal support block (312) is fixed to the adjacent pressure push plate (311). A power telescopic rod (313) is fixed on the side of the pressure push plate (311) away from the side plate (31). The other end of the power telescopic rod (313) is fixed to the equipment frame (1).

8. The welding equipment for prefabricated steel structure building welds according to claim 7, characterized in that: The support box (51) and the upper support frame (6) are both fixed with an extended force plate (314) near the end of the arc top plate (86). The side plate (31) adjacent to the arc top plate (86) is provided with a bent support plate (315) on both the upper and lower sides. The distance between the bent support plate (315) and the corresponding side plate (31) is equal to the thickness of the extended force plate (314). The bent support plate (315) is fixed with the connected pressure push plate (311).

9. The welding equipment for prefabricated steel structure building welds according to claim 3, characterized in that: The connecting mechanism (53) includes an inner tube (531) and an outer tube (532). The outer tube (532) is installed through the support box (51) on the side near the central axis (32). One end of the inner tube (531) is slidably inserted into the inside of the outer tube (532). The other end of the inner tube (531) is connected to the hollow suction cup (52). The inner tube (531) and the outer tube (532) are elastically connected. The hollow suction cup (52) has a through hole at its axis. The outer tube (532) has multiple ventilation slots (533) at one end inside the support box (51). The outer ring surface of the inner tube (531) has multiple connecting slots (534) that are connected to the inside. The multiple connecting slots (534) and the multiple ventilation slots (533) are vertically arranged in a one-to-one correspondence.

10. The welding equipment for prefabricated steel structure building welds according to claim 8, characterized in that: A lever plate (861) is provided between the arc top plate (86) and the adjacent side plate (31), and the lever plate (861) is fixedly installed with the adjacent pressure push plate (311).

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