Intelligent welding system for roof cantilever structure

Abstract

The invention relates to the technical field of building steel structure welding, and discloses a roof cantilever structure intelligent welding system which comprises a welding unit and a replacing unit, the welding unit comprises a machine box, one side of the outer surface of the machine box is fixedly connected with a cable, and the end, away from the machine box, of the cable is fixedly connected with a welding gun; the replacing unit comprises a storage barrel fixedly connected to the side edge of the welding gun, an inner barrel is rotationally connected into the storage barrel, clamping blocks are distributed on the outer surface of the inner barrel in an annular matrix mode, and a channel is formed in the connecting position of the storage barrel and the welding gun in a penetrating mode. The inner barrel can be driven to rotate through rotation of the rotary knob, the clamping block clamped with the welding rod is moved to the position corresponding to the channel, the welding rod can slide into the cavity from the channel, the purpose of automatically replacing the welding rod is achieved, the multiple welding rods are stored in the storage barrel at a time, continuous welding work is facilitated, and the welding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding of building steel structures, and particularly to an intelligent welding system for a roof cantilever structure. Background Art

[0002] In modern house structures, in order to enrich the house shape, the roof is often designed as a parapet cantilever structure. The lowest part of the cantilever structure is generally lower than the roof slab, and it is impossible to embed an I-beam in the roof slab. Instead, a steel embedded part is embedded in the wall / side beam of the roof layer. After the concrete strength reaches the requirement, bolts and I-beams are installed with the embedded part as the formwork support for the roof parapet cantilever structure. After installing the main beam I-beam, horizontal steel pipes need to be laid, and a welding device is used to weld the position where the horizontal steel pipe intersects with the cantilever main beam to improve the support strength.

[0003] After retrieval, a Chinese patent application with the publication number CN113210913A: A mobile electric welding device for building construction, including a housing. Spring plates are fixedly connected to the left and right sides above the housing. A welding plate is fixedly connected above the spring plates. A welding head is fixedly connected in the middle of the welding plate. A material control component is arranged right below the welding head. Rollers are arranged at the bottom of the housing. An explosion component is connected by gears above the rollers. A ground gripping component is arranged in the middle of the housing. The explosion component includes a dust suction box and a detonation box. The detonation box and the dust suction box are connected by a pipeline. The detonation box includes a friction wheel and a conductive sheet. A coil is arranged inside the friction wheel. A pulley is arranged in the middle of the friction wheel. The dust suction box includes a floating piece and a telescopic wheel. The telescopic wheel is connected by a crawler with the pulley. The telescopic wheel is fixedly connected with the floating piece, and it has the characteristics of automatic positioning of the welding point and strong grip on slopes. However, when the above technical solution is implemented, there are still the following deficiencies; During the process of welding the cantilever structure on the roof, a welding rod is required to perform spot welding at the connection. Then the welding rod is continuously consumed. Each time the welding rod is consumed, it needs to be manually replaced. However, the welding rod is electrified during the welding process and has a high temperature. Manual replacement needs to wait until the temperature drops and cools down before replacement, which is time-consuming and results in low welding efficiency. Therefore, an intelligent welding system for a roof cantilever structure needs to be designed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to propose an intelligent welding system for a roof cantilever structure to solve the deficiencies existing in the prior art.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: An intelligent welding system for a roof cantilever structure, including a welding unit and a replacement unit; Among them, the welding unit includes a chassis, one side of the outer surface of the chassis is fixedly connected with a cable, one end of the cable far away from the chassis is fixedly connected with a welding gun, an electric welding pliers is arranged on the other side of the outer surface of the chassis, a welding head is arranged at the end of the welding gun, and a handle is arranged at the lower part of the welding gun; Among them, the replacement unit includes a storage cylinder fixedly connected to the side of the welding gun, an inner cylinder is rotatably connected inside the storage cylinder, clamping blocks are distributed in a circular matrix on the outer surface of the inner cylinder, and a channel is penetrated and opened at the connection between the storage cylinder and the welding gun; Among them, a trigger assembly is arranged inside the inner cylinder, and a transmission assembly is arranged at the end of the storage cylinder; Among them, an adjusting unit is arranged on the side of the welding gun far away from the storage cylinder.

[0006] As a preferred technical solution of the present invention, a knob is movably inserted into one end of the storage cylinder, one end of the knob extending into the storage cylinder is fixedly connected with the inner cylinder, the end of the storage cylinder far away from the knob is set as an open end, and a cylinder cover is arranged inside the open end.

[0007] As a preferred technical solution of the present invention, the trigger assembly includes a limiting plate arranged inside the inner cylinder, a top plate is fixedly connected to the outer surface of the limiting plate, a sliding groove is penetrated and opened on the outer surface of the inner cylinder, the sliding groove penetrates through the middle of the clamping block, and the top plate slides inside the sliding groove.

[0008] As a preferred technical solution of the present invention, a spring is fixedly connected to the outer surface of the limiting plate, one end of the spring far away from the limiting plate is fixedly connected to the inner wall of the inner cylinder, and the spring is in a stretched state.

[0009] As a preferred technical solution of the present invention, the adjusting unit includes a pushing assembly arranged on the side of the welding gun far away from the storage cylinder, an opening and closing assembly based on the pushing assembly, and a positioning assembly arranged inside the welding gun.

[0010] As a preferred technical solution of the present invention, the pushing assembly includes a side box fixedly connected to the side of the welding gun far away from the storage cylinder, a motor is arranged at the end of the side box, a lead screw is fixedly connected to the driving end of the motor, a sliding seat is threadedly connected to the outer surface of the lead screw, one end of the sliding seat extending into the welding gun is fixedly connected with a central block, and a cavity is arranged inside the welding gun.

[0011] As a preferred technical solution of the present invention, the opening and closing assembly includes threaded cylinders rotatably connected to the upper and lower ends of the central block, threaded rods are threadedly connected inside the threaded cylinders, one end of the threaded rod extending into the central block is fixedly connected with a clamping block, a guiding groove is opened inside the central block, a guiding rod is fixedly connected to the side of the threaded rod, and the guiding rod is limited to slide inside the guiding groove.

[0012] As a preferred technical solution of the present invention, positioning grooves are provided on the inner walls of the upper and lower sides of the cavity. Rack bars are fixedly connected to the inner walls of the upper and lower positioning grooves. Four rack bars are provided and symmetrically arranged at both ends of the upper and lower positioning grooves. A gear is fixedly sleeved on the outer surface of the threaded cylinder, and the gear is meshed with the rack bar.

[0013] As a preferred technical solution of the present invention, the positioning assembly includes a positioning rod slidably connected in the positioning groove. A positioning ring is provided in the middle of the positioning rod. An opening is provided on the side of the positioning ring. A slideway is fixedly connected to the outer surface of the open end of the positioning ring. The slideway is aligned with the channel. An elastic cord is fixedly connected to the side of the positioning rod, and the end of the elastic cord away from the positioning rod is fixedly connected to the outer surface of the central block.

[0014] As a preferred technical solution of the present invention, the transmission assembly includes a worm that is movably inserted through the side of the welding gun. A worm gear is meshed with the outer surface of the worm. The worm gear is fixedly connected to the end of the knob. A ratchet wheel is fixedly connected to the end of the worm extending into the welding gun. A slot is provided on the lower side of the central block, and a ratchet pawl is provided inside the slot. The ratchet wheel is meshed with the ratchet pawl.

[0015] The present invention has the following beneficial effects: 1. By providing a replacement unit, the rotation of the knob can drive the inner cylinder to rotate, move the block clamping the welding rod to a position corresponding to the channel, and the welding rod can slide into the cavity from the channel, achieving the purpose of automatically replacing the welding rod. And multiple welding rods are stored in the storage cylinder at one time, facilitating the continuous progress of welding work and improving the welding efficiency; 2. By providing a triggering assembly and a transmission assembly, during the movement of the central block, the ratchet pawl meshes with the ratchet wheel and drives the ratchet wheel to rotate, and then uses the worm and worm gear transmission to realize the transmission of the action. After the position of the block is replaced, the spring rebounds to pull the limiting plate to move, applying a thrust to the welding rod in the block, forcing the welding rod to necessarily slide into the channel and enter the cavity, achieving the effect of automatic replacement; 3. By providing a pushing assembly and a positioning assembly, by driving the screw rod to rotate by a motor, the central block can be driven to move, thus achieving the effect of automatically pushing the welding rod. And when installing the welding rod, the gear rotates under the limit of the rack bar and pushes the clamping block to clamp the welding rod. After the welding rod is used up, the gear rotates in the reverse direction under the limit of the rack bar, and the clamping block will loosen the welding rod, and the used-up welding rod will automatically fall off; 4. By providing a positioning assembly, after the welding rod enters the cavity, it will enter the slideway and move along the slideway until it enters the middle of the positioning ring, realizing the locking of the position of the welding rod, making the welding rod in the center of the cavity, which is convenient for the central block to clamp and position the end of the welding rod. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 2 It is a schematic diagram of the structure of the welding gun of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 3 It is a schematic diagram of the structure of the first perspective of the replacement unit of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 4 It is a schematic diagram of the structure of the second perspective of the replacement unit of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 5 It is a schematic diagram of the structure of the trigger assembly of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 6 It is a schematic diagram of the internal structure of the welding gun of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 7 It is a schematic diagram of the structure of the adjustment unit of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 8 It is a schematic diagram of the structure of the pushing assembly and the opening and closing assembly of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 9 It is a schematic diagram of the structure of the opening and closing assembly of the intelligent welding system for the roof cantilever structure proposed by the present invention; Figure 10 For the present invention Figure 6 The enlarged view at position A in.

[0017] In the figure: 101, chassis; 102, cable; 103, welding gun; 104, welding head; 105, grip; 106, welding clamp; 201, storage cylinder; 202, cylinder cover; 203, inner cylinder; 204, knob; 205, block; 206, channel; 301, limit plate; 302, top plate; 303, chute; 304, spring; 401, worm; 402, worm gear; 403, ratchet; 404, slot; 405, pawl; 501, side box; 502, motor; 503, lead screw; 504, slide seat; 505, center block; 506, cavity; 601, threaded cylinder; 602, threaded rod; 603, clamping block; 604, gear; 605, positioning groove; 606, rack; 607, guide groove; 608, guide rod; 701, positioning rod; 702, positioning ring; 703, slideway; 704, elastic cord. Detailed Description of the Invention

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Referring to Figures 1 to 10 , the intelligent welding system for the roof cantilever structure includes a welding unit and a replacement unit; Among them, the welding unit includes a chassis 101. One side of the outer surface of the chassis 101 is fixedly connected with a cable 102. One end of the cable 102 away from the chassis 101 is fixedly connected with a welding gun 103. An electric welding clamp 106 is arranged on the other side of the outer surface of the chassis 101. A welding head 104 is arranged at the end of the welding gun 103, and a grip 105 is arranged below the welding gun 103; The operator clamps the electric welding clamp 106 on the object to be welded, starts the power button on the chassis 101, installs the welding rod in the welding gun 103 and extends it from the welding head 104, and holds the grip 105 to align the welding head 104 with the welding part for welding.

[0020] Referring to Figure 2 and Figure 4 , the replacement unit includes a storage cylinder 201 fixedly connected to the side of the welding gun 103. An inner cylinder 203 is rotatably connected inside the storage cylinder 201. Clamping blocks 205 are distributed in a circular matrix on the outer surface of the inner cylinder 203. A channel 206 is penetrated and opened at the connection between the storage cylinder 201 and the welding gun 103. One end of the storage cylinder 201 is movably inserted with a knob 204. One end of the knob 204 extending into the storage cylinder 201 is fixedly connected with the inner cylinder 203. One end of the storage cylinder 201 away from the knob 204 is set as an open end, and a cylinder cover 202 is arranged inside the open end; During the process of driving the knob 204 to rotate, the inner cylinder 203 is driven to rotate, realizing the switching of the clamping blocks 205 on the outer surface of the inner cylinder 203, moving the empty clamping blocks 205 away, and moving the clamping blocks 205 clamped with welding rods to the positions corresponding to the channels 206. The welding rods can slide into the cavity 506 from the channels 206, achieving the purpose of automatically replacing the welding rods without manual replacement. Moreover, multiple welding rods are stored in the storage cylinder 201 at one time, facilitating the continuous progress of the welding work and improving the welding efficiency.

[0021] Referring to Figure 2 and Figure 5, the triggering component includes a limiting plate 301 arranged inside the inner cylinder 203. The outer surface of the limiting plate 301 is fixedly connected with a top plate 302. A sliding groove 303 is formed through the outer surface of the inner cylinder 203, and the sliding groove 303 penetrates through the middle of the clamping block 205. The top plate 302 slides inside the sliding groove 303. The outer surface of the limiting plate 301 is fixedly connected with a spring 304. One end of the spring 304 away from the limiting plate 301 is fixedly connected to the inner wall of the inner cylinder 203, and the spring 304 is in a stretched state; When the clamping block 205 clamped with the welding rod moves to a position corresponding to the channel 206, the spring 304 that has been in a stretched state will rebound, and then it will pull the limiting plate 301 to move. The limiting plate 301 pushes the top plate 302 to slide inside the sliding groove 303, and applies a thrust to the welding rod in the clamping block 205, forcing the welding rod to slide into the channel 206 and enter the cavity 506 inevitably.

[0022] Refer to Figures 6 to 9 , the adjusting unit includes a pushing component arranged on the side of the welding gun 103 away from the storage cylinder 201, an opening and closing component based on the pushing component, and a positioning component arranged inside the welding gun 103; The pushing component includes a side box 501 fixedly connected to the side of the welding gun 103 away from the storage cylinder 201. A motor 502 is arranged at the end of the side box 501. The driving end of the motor 502 is fixedly connected with a lead screw 503. A sliding seat 504 is threadedly connected to the outer surface of the lead screw 503. One end of the sliding seat 504 extending into the welding gun 103 is fixedly connected with a central block 505. A cavity 506 is arranged inside the welding gun 103; The motor 502 drives the lead screw 503 to rotate. The sliding seat 504 is threadedly connected to the outer surface of the lead screw 503, so the sliding seat 504 will move along the axial direction of the lead screw 503. One end of the sliding seat 504 extending into the electric welding gun is connected to the central block 505, so the central block 505 will slide synchronously inside the cavity 506, and then push the welding rod, so that the welding rod always extends out from the welding head 104, and the extending speed is controlled to be the same as the welding speed, achieving the effect of automatically pushing the welding rod.

[0023] Refer to Figures 7 to 9, the opening and closing assembly includes threaded cylinders 601 rotatably connected to the upper and lower ends of the central block 505. A threaded rod 602 is threadedly connected inside the threaded cylinder 601. One end of the threaded rod 602 extending into the central block 505 is fixedly connected to a clamping block 603. A guiding groove 607 is formed inside the central block 505. A guiding rod 608 is fixedly connected to the side of the threaded rod 602. The guiding rod 608 is slidably limited inside the guiding groove 607. Positioning grooves 605 are formed on the upper and lower inner walls of the cavity 506. Rack bars 606 are fixedly connected to the inner walls of the upper and lower positioning grooves 605. There are four rack bars 606 symmetrically arranged at both ends of the upper and lower two positioning grooves 605. A gear 604 is fixedly sleeved on the outer surface of the threaded cylinder 601. The gear 604 is meshed with the rack bar 606; During the sliding process of the central block 505 inside the positioning groove 605, when the gear 604 is meshed with the rack bar 606, the gear 604 rotates and drives the threaded cylinder 601 to rotate. Since both sides of the threaded rod 602 are slidably limited inside the guiding groove 607 through the guiding rod 608, the threaded rod 602 will drive the clamping block 603 to move along the vertical direction. When approaching the end near the motor 502, the welding rod will be clamped, and when approaching the end near the welding head 104, the welding rod will be released. Then, the consumed welding rod will automatically fall off.

[0024] Refer to Figure 7 and Figure 8 , the positioning assembly includes a positioning rod 701 slidably connected inside the positioning groove 605. A positioning ring 702 is arranged in the middle of the positioning rod 701. An opening is arranged on the side of the positioning ring 702. A slideway 703 is fixedly connected to the outer surface of the open end of the positioning ring 702. The slideway 703 is aligned with the channel 206. A elastic cord 704 is fixedly connected to the side of the positioning rod 701. One end of the elastic cord 704 away from the positioning rod 701 is fixedly connected to the outer surface of the central block 505; After the welding rod enters the cavity 506, it will enter the slideway 703 and move along the slideway 703 until it enters the middle of the positioning ring 702, realizing the locking of the position of the welding rod, making the welding rod in the central part of the cavity 506, which is convenient for the central block 505 to clamp and position the end of the welding rod.

[0025] Refer to Figure 3 , Figure 4 , Figure 6 and Figure 10 , the transmission assembly includes a worm 401 movably inserted through the side of the welding gun 103. A worm gear 402 is meshed on the outer surface of the worm 401. The worm gear 402 is fixedly connected to the end of the knob 204. One end of the worm 401 extending into the welding gun 103 is fixedly connected to a ratchet wheel 403. A slot 404 is formed on the lower side of the central block 505. A ratchet pawl 405 is arranged inside the slot 404. The ratchet wheel 403 is meshed with the ratchet pawl 405; During the movement of the center block 505, the pawl 405 meshes with the ratchet 403 and drives the ratchet 403 to rotate, thereby driving the worm 401 to rotate. During the rotation of the worm 401, the worm wheel 402 is driven to rotate, thereby realizing the transmission of the action, promoting the replacement of the welding rod, and achieving the effect of automatic replacement.

[0026] The specific working principle of the present invention is as follows: The roof cantilever structure intelligent welding system proposed in the present invention is mainly composed of a chassis 101, a welding gun 103 and an electric welding clamp 106. In the construction of the roof cantilever structure, the steel pipe needs to be welded after being laid on the I-beam. The operator and the device are transported to the designated position by a hanging basket. The operator clamps the electric welding clamp 106 on the object to be welded, activates the power button on the chassis 101, and the welding rod is installed in the welding gun 103 and extends from the welding head 104. The operator holds the grip 105 and aligns the welding head 104 with the welding part to weld. Before welding, open the barrel cover 202, put the welding rod into each block 205 accordingly, and then close the barrel cover 202. During the welding process, since the size of the welding rod is constantly shortened, the welding rod needs to be pushed. Since the switch on the grip 105 controls the start and stop of the welding gun 103 and the motor 502 at the same time, the motor 502 is also in operation during welding. The motor 502 drives the screw rod 503 to rotate, and the slide 504 is threadedly connected to the outer surface of the screw rod 503, so the slide 504 will move along the axial direction of the screw rod 503. The end of the slide 504 extending into the welding gun is connected to the center block 505, so the center block 505 will synchronously slide in the cavity 506, and then push the welding rod, so that the welding rod continues to extend outward from the welding head 104, and the extension speed is controlled to be the same as the welding speed. , the effect of automatically pushing the welding rod is achieved, and when the welding rod is about to be used up, the center block 505 also moves to the position of the cavity 506 close to the welding head 104, at this time, the gear 604 is meshed with the rack 606, and as the movement proceeds, the gear 604 rotates and drives the threaded barrel 601 to rotate. Since the two sides of the threaded rod 602 are limited and slide in the guide groove 607 by the guide rod 608, the threaded barrel 601 will drive the threaded rod 602 to move into the threaded barrel 601 during the rotation of the threaded barrel 601, and then the two clamping blocks 603 will be pulled away, so that the welding rod clamped in the clamping blocks 603 loses its limit, and then the consumed welding rod will automatically fall off, and then the motor 502 is controlled to rotate the motor 502 in the reverse direction, which can drive the slide 504 to move in the direction of the motor 502, and drive the center block 505 to move to the innermost side of the cavity 506; After the central block 505 is reset, the motor 502 is controlled to rotate forward again. The same as the above driving process, during the movement of the central block 505, the pawl 405 meshes with the ratchet 403 and drives the ratchet 403 to rotate. When the central block 505 moves in the reverse direction, the pawl 405 slides relative to the ratchet 403 and cannot transmit power, achieving the effect of one-way transmission. Then, the worm 401 is driven to rotate. During the rotation of the worm 401, the worm wheel 402 is driven to rotate, thus realizing the transmission of motion. The knob 204 drives the inner cylinder 203 to rotate as the worm wheel 402 rotates. The self-locking principle of the worm wheel 402 and the worm 401 can ensure the stability of the inner cylinder 203, realize the switching of the clamping blocks 205 on the outer surface of the inner cylinder 203, transfer the empty clamping blocks 205 away, and move the clamping blocks 205 with welding electrodes to the positions corresponding to the channels 206. The welding electrodes can slide into the cavity 506 through the channels 206, achieving the purpose of automatic replacement of welding electrodes without manual replacement. Moreover, multiple welding electrodes are stored in the storage cylinder 201 at one time, facilitating the continuous progress of welding work and improving the welding efficiency. When the clamping block 205 with a welding electrode moves to the position corresponding to the channel 206, the spring 304 that has been in a stretched state will rebound, and then pull the limiting plate 301 to move. The limiting plate 301 pushes the top plate 302 to slide in the chute 303 and applies a thrust to the welding electrode in the clamping block 205, forcing the welding electrode to surely slide into the channel 206 and enter the cavity 506. After the welding electrode enters the cavity 506, it will enter the slideway 703 and move along the slideway 703 until it enters the middle of the positioning ring 702, realizing the locking of the position of the welding electrode and making the welding electrode located at the central part of the cavity 506, which is convenient for the central block 505 to clamp and position the end of the welding electrode. When the central block 505 continues to move, it will wrap the end of the welding electrode. At this time, the gear 604 meshes with the rack 606, driving the threaded cylinder 601 to rotate, and then driving the threaded rod 602 to push the clamping block 603 to wrap and clamp the welding electrode, ensuring the stability of the welding electrode during the welding process.

[0027] As mentioned above, the above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. The intelligent welding system for roof cantilever structure is characterized by: Includes welding unit and replacement unit; The welding unit comprises a chassis (101), a cable (102) is fixedly connected to one side of an outer surface of the chassis (101), a welding gun (103) is fixedly connected to one end of the cable (102) away from the chassis (101), an electric welding clamp (106) is provided on the other side of the outer surface of the chassis (101), a welding head (104) is provided at the end of the welding gun (103), and a handle (105) is provided at the bottom of the welding gun (103); The replacement unit comprises a storage cylinder (201) fixedly connected to a side of the welding gun (103); an inner cylinder (203) is rotatably connected to the interior of the storage cylinder (201); blocks (205) are distributed in a ring matrix on the outer surface of the inner cylinder (203); and a channel (206) is provided through the connection between the storage cylinder (201) and the welding gun (103); Wherein, a trigger assembly is arranged inside the inner cylinder (203), and a transmission assembly is arranged at the end of the storage cylinder (201); Wherein, an adjustment unit is provided on a side of the welding gun (103) away from the storage cylinder (201).

2. The intelligent welding system for cantilevered roof structure according to claim 1 is characterized in that: A knob (204) is movably inserted into one end of the storage tube (201); the end of the knob (204) extending into the storage tube (201) is fixedly connected to the inner tube (203); the end of the storage tube (201) away from the knob (204) is arranged as an open end; a tube cover (202) is arranged inside the open end.

3. The intelligent welding system for cantilevered roof structure according to claim 1 is characterized in that: The trigger assembly comprises a limit plate (301) arranged inside the inner cylinder (203); the outer surface of the limit plate (301) is fixedly connected to a top plate (302); a slide groove (303) is provided through the outer surface of the inner cylinder (203); the slide groove (303) passes through the middle of the clamping block (205); and the top plate (302) slides inside the slide groove (303).

4. The intelligent welding system for cantilevered roof structure according to claim 3 is characterized in that: A spring (304) is fixedly connected to the outer surface of the limiting plate (301); one end of the spring (304) away from the limiting plate (301) is fixedly connected to the inner wall of the inner cylinder (203); and the spring (304) is in a stretched state.

5. The intelligent welding system for cantilevered roof structure according to claim 1 is characterized in that: The adjustment unit comprises a pushing component arranged on a side of the welding gun (103) away from the storage cylinder (201), an opening and closing component arranged based on the pushing component, and a positioning component arranged inside the welding gun (103).

6. The intelligent welding system for cantilevered roof structure according to claim 5 is characterized in that: The pushing assembly comprises a side box (501) fixedly connected to a side of the welding gun (103) away from the storage cylinder (201); a motor (502) is arranged at the end of the side box (501); a screw rod (503) is fixedly connected to the driving end of the motor (502); a slide seat (504) is threadedly connected to the outer surface of the screw rod (503); an end of the slide seat (504) extending into the welding gun (103) is fixedly connected to a center block (505); and a cavity (506) is arranged inside the welding gun (103).

7. The intelligent welding system for cantilevered roof structure according to claim 6 is characterized in that: The opening and closing assembly comprises a threaded cylinder (601) rotatably connected to the upper and lower ends of the center block (505); the internal thread of the threaded cylinder (601) is connected to a threaded rod (602); one end of the threaded rod (602) extending into the center block (505) is fixedly connected to a clamping block (603); a guide groove (607) is provided inside the center block (505); a guide rod (608) is fixedly connected to the side of the threaded rod (602); and the guide rod (608) is limitedly slidable inside the guide groove (607).

8. The intelligent welding system for cantilevered roof structure according to claim 7 is characterized in that: The upper and lower inner walls of the cavity (506) are provided with positioning grooves (605), and the inner walls of the upper and lower positioning grooves (605) are fixedly connected with racks (606). The racks (606) are provided with four pieces, which are symmetrically arranged at the two ends of the upper and lower positioning grooves (605). The outer surface of the threaded cylinder (601) is fixedly sleeved with a gear (604), and the gear (604) is meshingly connected with the racks (606).

9. The intelligent welding system for cantilevered roof structure according to claim 5 is characterized in that: The positioning assembly comprises a positioning rod (701) slidably connected in the positioning groove (605); a positioning ring (702) is arranged in the middle of the positioning rod (701); an opening is arranged on the side of the positioning ring (702); a slideway (703) is fixedly connected to the outer surface of the open end of the positioning ring (702); the slideway (703) is arranged to align with the channel (206); an elastic rope (704) is fixedly connected to the side of the positioning rod (701); and one end of the elastic rope (704) away from the positioning rod (701) is fixedly connected to the outer surface of the center block (505).

10. The intelligent welding system for cantilevered roof structure according to claim 6, characterized in that: The transmission assembly comprises a worm (401) movably inserted into the side of the welding gun (103); the outer surface of the worm (401) is meshingly connected with a worm wheel (402); the worm wheel (402) is fixedly connected to the end of a knob (204); one end of the worm (401) extending into the welding gun (103) is fixedly connected with a ratchet (403); a slot (404) is provided on the lower side of the center block (505); a pawl (405) is provided inside the slot (404); and the ratchet (403) is meshingly connected with the pawl (405).

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