Automatic welding machine for sheet metal welding production line

Abstract

The utility model discloses an automatic welding machine for a sheet welding thin metal sheet production line, which comprises a power part and an electric connecting piece, and further comprises a base assembly, the base assembly is movably connected with a plurality of walking welding mechanisms, the walking welding mechanisms are arranged according to the welding positions of metal sheets, and each walking welding mechanism comprises a welding head and a first suction cup; comprising a conveying mechanism used for conveying plates. Comprising a side positioning mechanism and a front positioning mechanism which are symmetrically arranged on the two sides of a conveying mechanism, and the side positioning mechanism is in sliding connection with the base; comprising a material supporting assembly provided with a material supporting cushion block, and in the plate conveying process, the material supporting cushion block is located below a plate; when a plate material and a metal sheet are welded, the plate material and the metal sheet are clamped by the material supporting cushion block and the first suction cup; according to the utility model, the automation of welding thin metal sheets on plates is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate material processing, and in particular relates to an automatic welding machine for a plate material welding thin metal sheet production line. Background Art

[0002] In the field of sheet metal processing or assembly, metal sheets, usually thin stainless steel sheets, are manually attached near the process holes on the sheet metal using tape. Due to manual attachment, problems such as unstable quality control and unreliable bonding may occur. In addition, when there are many process holes, the time required for a worker to complete a product is doubled. When unreliable bonding occurs, the metal sheet may fall off during the subsequent foaming agent injection process, causing problems such as foaming agent overflow. Utility Model Content

[0003] In order to solve the problems in the above-mentioned background technology, the utility model discloses an automatic welding machine for a sheet metal welding thin metal sheet production line, comprising a power component, a power component control module and an electrical connector, and also comprising a base assembly, wherein the base assembly is movably connected to a plurality of walking welding mechanisms, the walking welding mechanisms are arranged according to the welding positions of the metal sheets, and the walking welding mechanisms comprise a welding head and a first suction cup;

[0004] It includes a conveying mechanism for conveying sheet materials;

[0005] It includes a positioning mechanism for limiting the position of the sheet material and movably connected to the base, the positioning mechanism includes a side positioning mechanism and a front positioning mechanism symmetrically arranged on both sides of the conveying mechanism, and the side positioning mechanism is slidably connected to the base;

[0006] It includes a supporting assembly provided with a supporting pad, and when the sheet material is being transported, the supporting pad is located below the sheet material;

[0007] When the plate material and the metal sheet are welded, the support pad and the first suction cup clamp the plate material and the metal sheet.

[0008] Preferably, the base assembly includes a base plate, the base plate is fixedly connected with a first guide rail, a second guide rail and a first rack, the first guide rail is slidably connected to a walking welding mechanism, the walking welding mechanism includes a first gear, and the first gear is connected to the first rack; the first guide rail is slidably connected to a side positioning mechanism.

[0009] Preferably, the walking welding mechanism comprises a base, the base is bolted with a first power component, and is fixedly connected with a bracket, the bracket is movably connected with a welding assembly, and the welding assembly comprises a material taking system, a galvanometer welding machine, and a detection assembly;

[0010] The bracket is fixedly connected with the third guide rail and the second rack, and the welding assembly is respectively slidably connected with the third guide rail and the second rack and connected with the gear.

[0011] Preferably, the welding assembly comprises a first plate body slidably connected to the third guide rail and bolted with a second power component, a second plate body equipped with a material taking system, a galvanometer welding machine and a detection assembly, and a ball screw;

[0012] The third guide rail and the second rack are not in the same plane.

[0013] The first plate body is fixedly connected with the fourth guide rail, the fourth guide rail is slidably connected with the second plate body, the first plate body is fixedly connected with the first fixing piece provided with a through hole, the second plate body is fixedly connected with the second fixing piece provided with a through hole, and the ball screws penetrate through and are threadedly connected with the first fixing piece and the second fixing piece.

[0014] The second power component includes a first motor and a second motor. The output end of the second motor is connected to a second gear 29. The second gear is connected to the second rack gear. The first motor drives the ball screw.

[0015] Preferably, the detection assembly includes a detection camera and a ring-shaped light source located below the detection camera, and the projection of the detection camera lens all falls into the through hole of the light source. When the detection function is used, the light source is opposite to the weld.

[0016] Preferably, the material taking system comprises a material bin for holding metal sheets and a third power component, and the output end of the third power component is fixedly connected to the rotating arm;

[0017] The rotating arm is fixedly connected with a material picking assembly, which includes a pressure plate with a channel and a slot, a fixed plate with a linear bearing passing through it, a sealing plate and a guide rod. The guide rod passes through the linear bearing and both ends are fixedly connected to the pressure plate and the sealing plate. An elastic body connected to the pressure plate and the fixed plate is provided between the pressure plate and the fixed plate, and the elastic body is a spring. A suction cup assembly fixedly connected to the fixed plate is provided between the pressure plate and the fixed plate. The suction cup assembly includes a first suction cup and a rod body passing through the channel. Both ends of the rod body are fixedly connected to each fixed plate respectively. When picking up materials, the first suction cup located below the silo fits with the metal sheet. The first suction cup is an industrial sponge. The fixed plate is fixedly connected to the rotating arm. When welding, the laser of the galvanometer welding machine passes through the slot to complete the welding.

[0018] Preferably, the silo is a hollow structure and is provided with a discharge port, the maximum projection area of ​​the metal sheet is larger than the discharge port area, and in the material taking state, the discharge port of the silo is located directly above the pressure plate, and a material level detector is provided in the silo cavity.

[0019] It includes a bottom plate and two L-shaped plates located opposite to each other. One end of each L-shaped plate is perpendicular to and fixedly connected to the bottom plate. The silo is a through structure. The through opening of the silo is symmetrically provided with baffles to form a discharge port. When the metal sheet is inside the silo, the metal sheet fits against the baffle.

[0020] Preferably, the conveying mechanism is a motor-driven belt conveying mechanism, the conveying mechanism comprises a first conveying assembly and a second conveying assembly which are parallel to each other, and a fourth power component driving the first conveying assembly and the second conveying assembly, and the first conveying assembly and the second conveying assembly both comprise a support body provided with a screw hole;

[0021] The support assembly includes 1 first support assembly and 4 second support assemblies. The first support assembly is located between the first conveying assembly and the second conveying assembly. The second support assembly is fixedly connected to the side positioning mechanism. The first support assembly and the second support assembly both include support pads. The support pads are telescopically driven toward the sheet material direction by a moving cylinder.

[0022] It includes a second suction cup located between the first conveying assembly and the second conveying assembly, fixedly connected to the base and driven by the cylinder.

[0023] When the sheet material is being conveyed, the supporting pad and the second suction cup are both located below the sheet material;

[0024] Preferably, the side positioning mechanism includes a plurality of third fixing members provided with insertion holes and fixedly connected to the support body, a plurality of first positioning plates and a strip connector fixedly connected to the support body, and the connector simultaneously passes through the insertion holes and is fixedly connected to the support body.

[0025] It includes a fifth power component and a forward and reverse lead screw penetrating through the screw hole and cooperating with the support body thread, and the fifth power component drives the forward and reverse lead screw;

[0026] When the positions of both sides of the sheet material are appropriate, the first positioning plates are both in contact with the sheet material.

[0027] Preferably, the front positioning mechanism includes a second positioning plate equipped with a diffuse reflection photoelectric switch and a proximity switch for detecting material positioning, and the second positioning plate is driven by a front positioning cylinder telescopic assembly. When the sheet material enters the detection distance of the diffuse reflection photoelectric switch, the fourth power component reduces the conveyor belt transportation speed after receiving the signal of the diffuse reflection photoelectric switch, and when the sheet material triggers the proximity switch, the fourth power component stops running after receiving the signal of the proximity switch.

[0028] The front positioning mechanism is provided with a front positioning bracket, the front positioning bracket is fixedly connected to the front positioning cylinder telescopic assembly, and the output end of the front positioning cylinder telescopic assembly is fixedly connected to the strip-shaped second positioning plate.

[0029] Preferably, the front positioning bracket is fixedly connected to the bracket of the frontmost walking welding mechanism.

[0030] Preferably, the base is fixedly connected to a front positioning bracket support body, and the front positioning bracket is fixedly connected to the front positioning bracket support body.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] The utility model is designed with a first rack and a first gear to realize the movement of the galvanometer welding machine in the X-axis direction; the utility model is designed with a second rack and a second gear to realize the movement of the galvanometer welding machine in the Y-axis direction, and is designed with a second plate body, a second plate body, and a ball screw to realize the movement of the galvanometer motor in the Z-axis direction.

[0033] Multiple groups of walking welding mechanisms can meet the needs of multiple welding points of the sheet material, and according to the weld positions of different products, the correspondence between the galvanometer welder and the weld position can be achieved by moving the walking welding mechanism on the X-axis, Y-axis, and Z-axis.

[0034] The utility model is designed with a conveying mechanism and a positioning mechanism. By adjusting the positive and negative wires, the first conveying assembly and the second conveying assembly are moved in opposite or opposite directions at the same time. Because the first positioning plate is fixedly connected to the conveying assembly, the first positioning plate of the side positioning mechanism will move with the conveying assembly, thereby realizing the centering positioning of the material plate. A front positioning mechanism is designed, and the second positioning plate of the front positioning mechanism positions the position of the material according to the detection of the detector, thereby front positioning the material plate.

[0035] The utility model is designed with a material taking component, wherein the first suction cup is an industrial sponge, and the material taking action is completed by the rotation of the rotating arm and the upward movement of the second plate body, and the relative movement of the pressing plate and the fixing plate to compress the industrial sponge.

[0036] The utility model is designed with a detection component, which provides sufficient brightness for a detection camera according to a light source, confirms the welding seam, and improves the accuracy of the butt joint position between the plate material and the metal sheet.

[0037] The use of the utility model:

[0038] Running in X direction: the first power component of the walking welding mechanism drives the first gear to mesh with the first gear, and the walking welding mechanism includes a welding component and a detection component, so that the welding head and the detection component can move on the X-direction linear guide rail;

[0039] Running in the Y direction: the second motor of the walking welding mechanism drives the second gear and the second rack to mesh, because the second motor is installed on the first plate body, and the first plate body is connected to the second plate body, the welding assembly and the detection assembly are both installed on the second plate body, so that the welding head and the detection assembly can move on the Y-direction linear guide rail;

[0040] Operation in Z direction: The first motor of the walking welding mechanism drives the ball screw to rotate and move upward and downward through the second plate body. Since the welding assembly and the detection assembly are both installed on the second plate body, the welding head and the detection assembly can be raised and lowered on the Z guide rail;

[0041] Material picking action: The third power component directly drives the rotating arm to rotate, the first suction cup rotates to the top, and the Z-axis lifts and the first suction cup sucks air to complete the material picking action. The first suction cup rotates to the bottom, and the Z-axis lifts and the first suction cup deflates to complete the material discharge action.

[0042] Sheet conveying: It is achieved through the conveying mechanism of the motor-driven belt conveyor mechanism.

[0043] Front positioning of the material plate: Move the front positioning mechanism to the set position, and the front positioning cylinder telescopic assembly drives the second positioning plate to move. The second positioning plate is equipped with diffuse reflection photoelectric and proximity switches. When the diffuse reflection photoelectric detects the sheet material, it transmits the signal to the fourth power component to reduce the conveyor belt transportation speed. When the sheet material contacts the second positioning plate, the fourth power component stops running and the front positioning is completed.

[0044] Lateral centering positioning of the material plate: the fifth power component drives the forward and reverse screws to rotate, and the rotation of the forward and reverse screws drives the first conveying assembly and the second conveying assembly to approach or move away at the same time. The side positioning mechanism has a first positioning plate. When the positions of both sides of the sheet are appropriate, the first positioning plate is in contact with the sheet to achieve centering positioning of the sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0046] Figure 2 It is a three-dimensional structural schematic diagram of the base assembly, the conveying mechanism and the positioning mechanism;

[0047] Figure 3 It is a three-dimensional structural diagram of the walking welding mechanism when taking materials;

[0048] Figure 4 It is a three-dimensional structural diagram of the walking welding mechanism during material discharge;

[0049] Figure 5 It is a schematic diagram of the three-dimensional structure of the back of the walking welding mechanism;

[0050] Figure 6 This is a schematic diagram of the installation of the material taking system, the galvanometer welding machine and the detection component on the second plate body;

[0051] Figure 7 This is a schematic diagram of the three-dimensional structure of the material taking system after removing the silo;

[0052] Figure 8 It is a schematic diagram of the three-dimensional structure of the front positioning mechanism.

[0053] 1-base assembly; 2-travel welding mechanism; 11-bottom plate; 12-first guide rail; 13-second guide rail; 14-first rack; 21-first power component; 22-first gear; 23-bracket; 24-welding assembly; 241-second power component; 2411-first motor; 2412-second motor; 242-first plate; 243-second plate; 244-ball screw; 245-fourth guide rail; 246-feeding system; 2461-third power component; 2462-rotating arm; 2463-pressing plate; 2464-fixing plate; 2465-sealing plate; 2466-guide rod; 2467-elastic body; 2468-first suction cup; 2469-notch; 247-galvanometer welding machine; 248-detection assembly; 2481-detection camera; 2482-ring light Source; 249-first fixing member; 2410-second fixing member; 25-third guide rail; 26-second rack; 28-bin; 281-level detector; L-shaped plate 282; 29-second gear; 3-conveying mechanism; 31-first conveying assembly; 32-second conveying assembly; 33-support body; 34-fourth power component; 4-positioning mechanism; 41-side positioning mechanism; 411-third fixing member; 412-first positioning plate; 413-connecting body; 414-fifth power component; 41-positive and negative screw; 42-front positioning mechanism; 421-diffuse reflection photoelectric switch; 422-proximity switch; 423-second positioning plate; 5-support assembly; 501-support pad; 502-moving cylinder; 51-first support assembly; 52-second support assembly; 53-second suction cup. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0055] An automatic welding machine for a sheet metal welding thin metal sheet production line, comprising a power component, a power component control module and an electrical connector, and also comprising a base assembly 1, wherein the base assembly 1 is movably connected to five walking welding mechanisms 2, the walking welding mechanisms 2 are arranged according to the welding positions of the metal sheets, and the walking welding mechanisms 2 include a welding head and a first suction cup 6821;

[0056] It includes a conveying mechanism 3 for conveying the sheet material;

[0057] It includes a positioning mechanism 4 for limiting the position of the sheet and movably connected to the base, the positioning mechanism 4 includes a side positioning mechanism 41 and a front positioning mechanism 42 symmetrically arranged on both sides of the conveying mechanism 3, and the side positioning mechanism 41 is slidably connected to the base;

[0058] It includes a material supporting assembly 55 provided with a material supporting pad 501. When the sheet material is being transported, the material supporting pad 501 is located below the sheet material;

[0059] When the plate material and the metal sheet are being welded, the support pad 501 and the first suction cup 2468 clamp the plate material and the metal sheet.

[0060] Preferably, the base assembly 1 is movably connected with eight traveling welding mechanisms 22 .

[0061] Preferably, the base assembly 1 includes a base plate 11, to which a first guide rail 12, a second guide rail 13 and a first rack 14 are fixedly connected; the first guide rail 12 is slidably connected to a walking welding mechanism 2; the walking welding mechanism 2 includes a first gear 22, which is connected to the first rack 14; the first guide rail 12 is slidably connected to a side positioning mechanism 41.

[0062] Preferably, the walking welding mechanism 2 includes a base, the base is bolted with a first power component 21, and is fixedly connected with a bracket 23, the bracket 23 is movably connected with a welding assembly 24, and the welding assembly 24 includes a material taking system 246, a galvanometer welding machine 247, and a detection assembly 248;

[0063] The bracket 23 is fixedly connected with the third guide rail 25 and the second rack 26 , and the welding assembly 24 is respectively slidably connected and gear-connected with the third guide rail 25 and the second rack 26 .

[0064] Preferably, the welding assembly 24 includes a first plate 242 slidably connected to the third guide rail 25 and bolted with a second power component 241, a second plate 243 equipped with a material taking system 246, a galvanometer welding machine 247 and a detection assembly 248, and a ball screw 244;

[0065] The third guide rail 25 and the second rack 26 are not in the same plane.

[0066] The first plate 242 is fixedly connected to a fourth guide rail 245, which is slidably connected to the second plate 243. The first plate 242 is fixedly connected to a first fixing member 249 with a through hole, and the second plate 243 is fixedly connected to a second fixing member 2410 with a through hole. The ball screw 244 penetrates through and is threadedly connected to the first fixing member 249 and the second fixing member 2410.

[0067] The second power component 241 includes a first motor 2411 and a second motor 2412 . The output end of the second motor 2412 is connected to the second gear 29 . The second gear 29 is gear-connected to the second rack 26 . The first motor 2411 drives the ball screw 244 .

[0068] Preferably, the detection component 248 includes a detection camera 2481 and a ring-shaped light source 2482 located below the detection camera 2481. The projection of the detection camera 2481 lens all falls into the through hole of the light source 2482. When the detection function is used, the light source 2482 is opposite to the weld.

[0069] Preferably, the material taking system 246 comprises a material bin 28 for holding metal sheets and a third power component 2461, and the output end of the third power component 2461 is fixedly connected to a rotating arm 2462;

[0070] The rotating arm is fixedly connected to a material taking assembly, which includes a pressing plate 2463 with a channel and a notch 2469, a fixing plate 2464 with a linear bearing, a sealing plate 2465 and a guide rod 2466, the guide rod 2466 passes through the linear bearing and both ends are fixedly connected to the pressing plate 2463 and the sealing plate 2465, a spring body 2467 connected to the pressing plate 2463 and the fixing plate 2464 is provided between the pressing plate 2463 and the fixing plate 2464, and the spring body 2467 is a spring. 4 is provided with a suction cup assembly fixedly connected to the fixed plate 2464, the suction cup assembly includes a first suction cup 2468 and a rod body that runs through the channel, both ends of the rod body are fixedly connected to each fixed plate 2464 respectively, when taking materials, the first suction cup 2468 located below the silo 28 fits with the metal sheet, the first suction cup 2468 is an industrial sponge, the fixed plate 2464 is fixedly connected to the rotating arm 2462, when welding, the laser of the galvanometer welding machine passes through the notch 2469 to complete the welding.

[0071] Preferably, the silo 28 is a hollow structure and is provided with a discharge port. The maximum projection area of ​​the metal sheet is larger than the discharge port area. In the material taking state, the discharge port of the silo 28 is located directly above the pressure plate 2463, and a material level detector 281 is provided in the cavity of the silo 28.

[0072] It includes a bottom plate, two L-shaped plates 282 located opposite to each other, one end of each L-shaped plate is perpendicular to the bottom plate and fixedly connected, the silo 28 is a through structure, and the through opening of the silo 28 is symmetrically provided with baffles 283 to form a discharge port. When the metal sheet is inside the silo 28, the metal sheet fits with the baffle.

[0073] Preferably, the conveying mechanism 33 is a motor-driven belt conveying mechanism, and the conveying mechanism 3 includes a first conveying assembly 31 and a second conveying assembly 32 which are parallel to each other, and a fourth power component 34 driving the first conveying assembly 31 and the second conveying assembly 32, and the first conveying assembly 31 and the second conveying assembly 32 both include a support body 33 provided with a screw hole;

[0074] The support assembly 5 includes a first support assembly 51 and four second support assemblies 52. The first support assembly 5 is located between the first conveying assembly 31 and the second conveying assembly 32. The second support assembly 5 is fixedly connected to the side positioning mechanism 41. The first support assembly 5 and the second support assembly 5 both include support pads 501. The support pads 501 are telescopically driven toward the sheet material direction by the moving cylinder 502.

[0075] It includes a second suction cup 53 located between the first conveying assembly 31 and the second conveying assembly 32, fixedly connected to the base and telescopically driven by a cylinder.

[0076] When the sheet material is being conveyed, the supporting pad 501 and the second suction cup 53 are both located below the sheet material;

[0077] Preferably, the side positioning mechanism 41 includes three third fixing members 411 provided with insertion holes and fixedly connected to the support body 33, four first positioning plates 412 fixedly connected to the support body, and a strip-shaped connecting body 413, which simultaneously passes through the insertion holes and is fixedly connected to the support body 33.

[0078] Preferably, the side positioning mechanism 41 includes 5 third fixing members 411 provided with insertion holes and fixedly connected to the support body 33, 5 first positioning plates 412 fixedly connected to the support body, and a strip-shaped connecting body 413, which simultaneously passes through the insertion holes and is fixedly connected to the support body 33.

[0079] It includes a fifth power component 414 and a forward and reverse screw 415 that passes through the screw hole and is threadedly matched with the support body 33, and the fifth power component 414 drives the forward and reverse screw 415;

[0080] When the positions of both sides of the sheet material are appropriate, the first positioning plates 412 are both in contact with the sheet material.

[0081] Preferably, the front positioning mechanism 4 includes a second positioning plate 423 equipped with a diffuse reflection photoelectric switch 421 and a proximity switch 422 for detecting material positioning. The second positioning plate 423 is driven by a front positioning cylinder telescopic assembly 424. When the sheet material enters the detection distance of the diffuse reflection photoelectric switch 421, the fourth power component 34 reduces the conveyor belt transportation speed after receiving the signal of the diffuse reflection photoelectric switch 421. When the sheet material triggers the proximity switch 422, the fourth power component 34 stops running after receiving the signal of the proximity switch 422.

[0082] The front positioning mechanism 4 is provided with a front positioning bracket 425 , the front positioning cylinder telescopic assembly 424 is fixedly connected to the front positioning bracket 425 , and the output end of the front positioning cylinder telescopic assembly 424 is fixedly connected to the strip-shaped second positioning plate 423 .

[0083] Preferably, the front positioning bracket is fixedly connected to the bracket of the frontmost walking welding mechanism 2.

[0084] Preferably, the base is fixedly connected to a front positioning bracket support body, and the front positioning bracket 425 is fixedly connected to the front positioning bracket support body.

[0085] The working principle and use process of this utility model:

[0086] Before the sheet material comes in, the telescopic assembly of the front positioning cylinder is in an extended state, and the distance between the two sides of the side positioning mechanism 41 on both sides of the conveyor is slightly wider than the sheet material to ensure that the sheet material can enter smoothly. The center of the detection camera 2481 of each walking welding assembly 24 is facing the weld of the sheet material. After the material taking assembly takes the metal sheet, it is at the lower end ready to discharge the material. The telescopic cylinder of the supporting assembly 5 is adjusted to the set position by the walking welding mechanism 2 and the fixed cylinder is extended to lock it. After the sheet material comes in, the front positioning mechanism 4 is used for front positioning first, and then the side positioning mechanism 41 is used for side positioning. After positioning is completed, the detection camera 2481 detects whether the injection hole is in the set area. If not, the error value will be fed back, and the system controls the first power component 21 or the second motor 2412 to act, and then repeats the detection of the detection camera 2481. If yes, the next step is taken.

[0087] After adjusting the position, the galvanometer welder and the detection assembly 248 move a fixed distance in the Y direction, align the center of the galvanometer welder with the weld, and at the same time, the telescopic cylinder of the support assembly 5 extends to lift the sheet material, and then the Z axis descends, the first suction cup 2468 presses the metal sheet onto the sheet material, and continues to compress the sheet material and the metal sheet for a distance. Since the support material is supported by a telescopic cylinder below, the gas can be compressed with the pressure reducing valve to adjust the thrust, and a buffering effect can be achieved. After the compression is completed, the laser of the galvanometer welder passes through the notch 2469 to start welding.

[0088] After welding is completed, the Z axis rises, the telescopic cylinder of the support assembly 5 falls, and the inspection camera 2481 comes back to take pictures to inspect the welding quality. After taking the pictures, the conveyor belt conveys the sheet material out, completing the welding of a sheet material and a metal sheet.

[0089] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic welding machine for sheet metal welding thin metal sheet production line, including a power component, characterized in that: It also includes a base assembly, the base assembly is movably connected to a plurality of walking welding mechanisms, the walking welding mechanisms are arranged according to the welding positions of the metal sheets, and the walking welding mechanisms include a welding head and a first suction cup; It includes a conveying mechanism for conveying sheet materials; It includes a positioning mechanism for limiting the position of the sheet material and movably connected to the base, the positioning mechanism includes a side positioning mechanism and a front positioning mechanism symmetrically arranged on both sides of the conveying mechanism, and the side positioning mechanism is slidably connected to the base; It comprises a material supporting assembly provided with a material supporting pad, and when the sheet material is being transported, the material supporting pad is located below the sheet material; When the plate material and the metal sheet are welded, the support pad and the first suction cup clamp the plate material and the metal sheet.

2. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 1, characterized in that: The base assembly includes a base plate, the base plate is fixedly connected with a first guide rail, a second guide rail and a first rack, the first guide rail is slidably connected to the walking welding mechanism, the walking welding mechanism includes a first gear, the first gear is connected to the first rack; the first guide rail is slidably connected to the side positioning mechanism.

3. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 1, characterized in that: The walking welding mechanism includes a base, the base is bolted with a first power component and fixedly connected with a bracket, the bracket is movably connected with a welding assembly, and the welding assembly includes a material taking system, a galvanometer welding machine, and a detection assembly; The bracket is fixedly connected with a third guide rail and a second rack, and the welding assembly is respectively slidably connected and gear-connected with the third guide rail and the second rack.

4. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 3, characterized in that: The welding assembly comprises a first plate body which is slidably connected to the third guide rail and bolted with a second power component, a second plate body which is installed with a material taking system, a galvanometer welding machine and a detection assembly, and a ball screw; The third guide rail and the second rack are not in the same plane, The first plate is fixedly connected with a fourth guide rail, the fourth guide rail is slidably connected with the second plate, the first plate is fixedly connected with a first fixing member with a through hole, the second plate is fixedly connected with a second fixing member with a through hole, the ball screws penetrate and are threadedly connected with the first fixing member and the second fixing member, The second power component includes a first motor and a second motor, the output end of the second motor is connected to a second gear, the second gear is connected to the second rack gear, and the first motor drives the ball screw.

5. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 4, characterized in that: The detection component includes a detection camera and a ring-shaped light source located below the detection camera. The projection of the detection camera lens all falls into the through hole of the light source. When the detection function is used, the light source is opposite to the weld.

6. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 4 is characterized in that , the material taking system includes a material bin for holding metal sheets and a third power component, and the output end of the third power component is fixedly connected to a rotating arm; The rotating arm is fixedly connected with a material picking assembly, which includes a pressure plate provided with a channel and a slot, a fixed plate penetrated by a linear bearing, a sealing plate and a guide rod, the guide rod penetrates the linear bearing and both ends are fixedly connected to the pressure plate and the sealing plate, an elastic body connected to the pressure plate and the fixed plate is arranged between the pressure plate and the fixed plate, the elastic body is a spring, a suction cup assembly fixedly connected to the fixed plate is arranged between the pressure plate and the fixed plate, the suction cup assembly includes a first suction cup and a rod body penetrating the channel, the two ends of the rod body are respectively fixedly connected to each of the fixed plates, when picking up materials, the first suction cup located below the silo fits with the metal sheet, the first suction cup is an industrial sponge, and the fixed plate is fixedly connected to the rotating arm.

7. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 6, characterized in that: The silo is a hollow structure and is provided with a discharge port. The maximum projection area of ​​the metal sheet is larger than the area of ​​the discharge port. In the material taking state, the discharge port of the silo is located directly above the pressure plate. A material level detector is provided in the cavity of the silo.

8. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 1, characterized in that: The conveying mechanism is a motor-driven belt conveying mechanism, and the conveying mechanism includes a first conveying assembly and a second conveying assembly that are parallel to each other, and a fourth power component that drives the first conveying assembly and the second conveying assembly, and the first conveying assembly and the second conveying assembly both include a support body provided with a screw hole; The material supporting assembly includes a plurality of first material supporting assemblies and a plurality of second material supporting assemblies, wherein the first material supporting assembly is located between the first conveying assembly and the second conveying assembly, and the second material supporting assembly is fixedly connected to the side positioning mechanism, and the first material supporting assembly and the second material supporting assembly both include the material supporting pad, and the material supporting pad is driven to extend and retract toward the sheet material direction by a moving cylinder. It includes a second suction cup located between the first conveying assembly and the second conveying assembly, fixedly connected to the base and telescopically driven by a cylinder; When the sheet material is being conveyed, the supporting pad and the second suction cup are both located below the sheet material.

9. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 8, characterized in that: The side positioning mechanism includes a plurality of third fixing members provided with insertion holes and fixedly connected to the support body, a plurality of first positioning plates fixedly connected to the support body, and a strip-shaped connecting body, wherein the connecting body simultaneously passes through the insertion holes and is fixedly connected to the support body. It comprises a fifth power component and a forward and reverse screw that passes through the screw hole and is threadedly matched with the support body, and the fifth power component drives the forward and reverse screw; When the positions of both sides of the sheet material are appropriate, the first positioning plates are both in contact with the sheet material.

10. The automatic welding machine for sheet metal welding thin metal sheet production line according to claim 8, characterized in that: The front positioning mechanism includes a second positioning plate equipped with a diffuse reflection photoelectric switch and a proximity switch for detecting material positioning. The second positioning plate is driven by a front positioning cylinder telescopic assembly. When the sheet material enters the detection distance of the diffuse reflection photoelectric switch, the fourth power component reduces the conveyor belt transportation speed after receiving the signal of the diffuse reflection photoelectric switch. When the sheet material triggers the proximity switch, the fourth power component stops running after receiving the signal of the proximity switch.

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