An automatic welding platform for the outer shell of a freezer

Abstract

The present invention provides an automatic welding platform for a freezer shell, which relates to the technical field of automatic welding platforms and includes a conveying platform. Along the conveying direction above it are a first welding station, a second welding station, and a filling station in sequence; a filling component is provided at the filling station; a corner butt joint piece, which includes an angle plate, a middle connecting block, an outer arc block, and an outer baffle; a first double-seam welding component, which is symmetrically arranged on both sides of the first welding station. The first double-seam welding component includes a first position adjusting component, a first laser welding gun, a first grasping component, a first storage component, and a first welding gun cleaning component; a second double-seam welding component; in the present invention, a reinforcing cover and a corner butt joint piece are reserved outside the freezer inner liner, which can effectively improve the docking efficiency and docking strength of the exterior panel. The entire welding process is automatically completed, with high welding efficiency and no need for manual positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic welding platforms, and more particularly to an automatic welding platform for a freezer shell. Background Art

[0002] Freezer shells are usually made of stainless steel. The freezer shell is arranged outside the freezer inner liner to protect the freezer inner liner. The freezer shell has good corrosion resistance and can resist the erosion of substances such as moisture and food juice, which makes the freezer not easy to rust during long-term use. For example, in some commercial freezers, various seafood, meats and other ingredients with salt and corrosive components are often contacted, and the stainless steel shell can effectively prevent the freezer from being corroded;

[0003] When welding the freezer shell, the following deficiencies exist:

[0004] 1. There are four sides of the freezer shell that need to be welded. It is necessary to repeatedly install and disassemble the positioning fixture to ensure that each exterior panel is outside the freezer, resulting in low welding efficiency of the freezer shell;

[0005] 2. There is a lack of connection buffer between the freezer shell and the freezer inner liner. As a result, the connection strength between the shell and the inner liner is insufficient, and when the shell is impacted, the inner liner will be damaged accordingly, and the protection ability of the freezer shell is limited. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides an automatic welding platform for a freezer shell, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] An automatic welding platform for a freezer shell includes a conveying platform. Along the conveying direction above it are a first welding station, a second welding station, and a filling station in sequence. A plurality of bearing components are installed on the top of the conveying platform. The bearing component includes a base. A plurality of bases are arranged on the conveying platform. A first motor is provided in the middle of the surface of the base. The output end of the first motor is connected to a support plate. A plurality of support rods are provided at the edge of the support plate. A closing plate is provided at the top of the plurality of support rods. The support plate is used to support the heat preservation inner liner from the bottom. The closing plate is sleeved on the outer wall bottom of the heat preservation inner liner, and the closing plate is placed above the side drain hole of the heat preservation inner liner; a filling component is provided at the filling station;

[0009] Corner docking part, which includes an angle plate, a middle connecting block, an outer arc block and an outer baffle. The side cross-section of the angle plate is a right angle. The angle plate is installed at the corner of the inner liner of the freezer by bolts. The length of the angle plate is the same as the height of the inner liner of the freezer. A middle connecting block is provided at the side wall corner of the angle plate. An outer arc block is provided at the outer end of the middle connecting block. The two sides of the outer arc block are the first docking planes. The outer wall of the outer arc block is an inverted arc chamfer surface. The middle of the inverted arc chamfer surface is a chamfer surface. The two sides of the inverted arc chamfer surface are the second docking planes. The second docking planes are vertically distributed with the first docking planes. Both the first docking plane and the second docking plane are welding surfaces; an outer baffle is vertically provided at the end of the angle plate; a chamfer protection plate is snap-fitted on the outside of the outer arc block. The chamfer protection plate is used to shield and protect the weld seam of the corner docking part;

[0010] The first double-seam welding assembly is symmetrically arranged on both sides of the first welding station. The first double-seam welding assembly includes a first position adjusting component, a first laser welding gun, a first grasping component, a first storage component and a first welding gun cleaning component. The first position adjusting component is slidably installed on the conveying platform. The first position adjusting component is used to drive the first laser welding gun and the first grasping component to act. The first position adjusting component is located above the first storage component and the first welding gun cleaning component; the first storage component is used to stack and store multiple groups of reinforcement covers;

[0011] The second double-seam welding assembly is symmetrically arranged on both sides of the second welding station. The second double-seam welding assembly includes a second position adjusting component, a second laser welding gun, a second grasping component, a second storage component and a second welding gun cleaning component. The second position adjusting component is slidably installed on the conveying platform. The second position adjusting component is used to drive the second laser welding gun and the second grasping component to act. The second position adjusting component is located above the second storage component and the second welding gun cleaning component; the second storage component is used to stack and store multiple groups of exterior decorative plates;

[0012] The welding platform includes the following states:

[0013] In the first state, the first grasping component grabs the reinforcement cover and automatically fits it on the outer wall of the heat preservation inner liner on all four sides. The first laser welding gun welds the reinforcement cover on the outer wall of the heat preservation inner liner. There are heat preservation cavities on both sides of the reinforcement cover; after welding, the first welding gun cleaning component cleans the impurities on the protective lens and the barrel end of the first laser welding gun;

[0014] In the second state, the second grasping component adsorbs and grabs the exterior decorative plate and automatically fits it on the outer wall of multiple groups of reinforcement covers. The exterior decorative plate is pre-positioned and snap-fitted with the reinforcement cover. The exterior decorative plate is placed between the first docking planes of two groups of corner docking parts. The second laser welding gun welds both ends of the exterior decorative plate; after welding, the second welding gun cleaning component cleans the impurities on the protective lens and the barrel end of the second laser welding gun;

[0015] In the third state, the filling component fills the heat preservation cavity with heat preservation agent.

[0016] Further, the reinforcing cover includes a U-shaped cover. Connecting plates are symmetrically arranged on both sides of the U-shaped cover. A partition plate is arranged above the interior of the U-shaped cover. Card holes are formed above and below the outer wall of the U-shaped cover, and the two groups of card holes are respectively located above and below the partition plate; in the first state, the top end of the reinforcing cover is flush with the top end of the heat preservation inner container, and a flow-through gap is left between the bottom end of the reinforcing cover and the closing plate; in the third state, the heat preservation agent fills below the partition plates of each reinforcing cover along the flow-through gap.

[0017] Further, a plurality of card columns are arranged on the inner wall of the exterior decorative plate. The card columns relatively penetrate through the card holes. Elastic pieces are symmetrically arranged on the outer wall of the card columns, and the elastic pieces are cooperatively stopped on the inner side of the U-shaped cover; a ring-shaped cover plate is cooperatively covered on the top of the heat preservation inner container and the heat preservation cavity. A plurality of claws are vertically arranged on the bottom surface of the ring-shaped cover plate, and the claws are clamped at the inner ends of the card columns.

[0018] Further, the first position adjusting component includes a first support rod, a first longitudinal guide rail, a first vertical guide rail, and a first transverse guide rail; the first grasping component includes a first driving rod, a back plate, and a clamping plate; two groups of first support rods are symmetrically arranged. The first support rods are vertically and slidably installed on the conveying platform. A first longitudinal guide rail is vertically arranged at the top end of the first support rod. A first vertical guide rail is slidably installed on the inner wall of the first longitudinal guide rail. A first vertical groove and a second vertical groove are formed on the inner wall of the first vertical guide rail. A first moving block is vertically and slidably installed inside the first vertical groove. A first transverse guide rail is rotatably installed between the two first moving blocks, and a second motor is installed at the rotating connection. A first driving rod is horizontally and slidably installed on the bottom surface of the first transverse guide rail. The output end of the first driving rod is rotatably connected to the back plate, and a switching motor is installed at the rotating connection. The clamping plate is slidably installed in an opening and closing manner on the inner wall of the back plate. The clamping plate is used for clamping the middle part of the end of the reinforcing cover. The switching motor drives the back plate to rotate, so that the opening of the reinforcing cover faces the heat preservation inner container; a second moving block is vertically and slidably installed inside each second vertical groove. A second transverse guide rail is rotatably installed inside the second moving block, and a third motor is installed at the rotating connection. A third moving block is slidably installed on the side wall of the second transverse guide rail. The side wall of the third moving block is rotatably connected to a first laser welding torch, and a fourth motor is installed at the rotating connection.

[0019] Further, the first storage component includes a first storage box. A first storage box is installed between the two first support rods. A plurality of reinforcing covers with upward openings are stacked inside the first storage box. A first push plate is vertically and slidably installed at the bottom inside the first storage box; first side boxes are slidably installed at the top of both side surfaces of the first storage box. Flux is stored inside the first side boxes. The top of the first side box is connected to a first lead-out pipe. The first lead-out pipe is horizontally arranged above the first storage box. Discharge holes are formed on the bottom surface of the first lead-out pipe.

[0020] Further, the first welding torch cleaning component includes a recovery cylinder, an outer grinding component, and an inner cleaning component. A vertical guide plate is installed inside the recovery cylinder. One side of the vertical guide plate is a recovery chamber, and an impurity extraction fan is installed in the recovery chamber. On the other side of the vertical guide plate, a fifth motor is slidably installed. The top output end of the fifth motor is connected to a main branch pipe. The top end of the main branch pipe is connected to the inner cleaning component. The inner cleaning component extends into the nozzle of the first laser welding torch and is used to clean the protective lens and the inner wall of the nozzle. An outer grinding component is provided at the top of the recovery cylinder. The outer grinding component is sleeved on the outer wall of the outlet end of the nozzle and is used to clean the impurities on the outer wall of the nozzle. The recovery chamber is used to recover the impurities cleaned by the inner cleaning component and the outer grinding component.

[0021] Further, a restraint plate is provided at the inner top of the main branch pipe. An inner pipe body vertically slides through the restraint plate. An upper ring body is provided on the outer wall of the top end of the inner pipe body. The top end of the inner pipe body slides out of the main branch pipe. Lifting drive wheels are installed on both sides of the inner pipe body. The inner top of the inner pipe body is an open structure. A sealing plate is provided at the inner bottom of the inner pipe body. Above the sealing plate is a receiving cavity. Below the sealing plate is a communicating air pipe. The air pipe penetrates through the main branch pipe and is connected to an air pump. The air pump is provided below the fifth motor. The top end of the main branch pipe is hermetically connected to a barrier airbag. A winding wheel is installed inside the receiving cavity. A traction rope is wound around the outer wall of the winding wheel. The traction end of the traction rope is connected to the barrier airbag. Scrapers are symmetrically and rotatably installed at the top end of the main branch pipe. A cleaning cotton pad is provided on the upper surface of the scraper. Brush hairs are embedded at the outer end of the scraper. The inner cleaning component includes the following working steps:

[0022] S1. The scraper rotates downward and folds up. The inner pipe body retracts into the main branch pipe. The barrier airbag deflates and retracts into the receiving cavity. The main branch pipe and the scraper extend into the nozzle.

[0023] S2. The scraper rotates and unfolds to the horizontal and fits against the protective lens. The main branch pipe rotates, and the cleaning cotton pad wipes and cleans the protective lens.

[0024] S3. The main branch pipe rotates and descends. The brush hairs clean the inner wall of the nozzle. At the same time, the inner pipe body extends out, and the barrier airbag expands into a circle and forms a barrier above the scraper to prevent dust from floating upward to the protective lens.

[0025] Further, the outer grinding component includes a lower cover body. An upper pipe body is rotatably provided at the top of the lower cover body. A sixth motor for driving the upper pipe body to rotate self is provided on the outer wall of the lower cover body. Multiple groups of grinding strips are provided on the inner wall of the upper pipe body. The shape of the grinding strips is adapted to the outer wall shape of the nozzle. Inner discharge holes and outer discharge holes are opened on the bottom surface of the lower cover body. The inner discharge holes are relatively communicated with the nozzle. The outer discharge holes are located outside the grinding strips. A ring cover is provided on the bottom surface of the lower cover body. The ring cover is communicated with the recovery chamber.

[0026] Further, the second storage component includes a second storage box, inside which multiple groups of exterior panels are stacked, and a second push plate is vertically slidably installed at the inner bottom of the second storage box; second side boxes are slidably installed at the tops of both sides of the second storage box, flux is stored inside the second side boxes, the tops of the second side boxes are connected to second outlet pipes, and the second outlet pipes are relatively arranged at the welded surfaces at both ends of the exterior panels.

[0027] Further, the filling assembly includes a moving hanging plate, a waste box, and longitudinal moving guide rails. The longitudinal moving guide rails are symmetrically arranged above the filling station. A moving hanging plate is slidably installed between the two groups of longitudinal moving guide rails. A waste box is arranged at one end of the filling station. Multiple liquid discharge heads are arranged at the front end of the bottom surface of the moving hanging plate. The liquid discharge heads are used to fill the heat preservation agent into the heat preservation cavity. A first material suction hole and a second material suction hole are formed at the rear end of the moving hanging plate. A material guiding plate and a material shoveling plate are arranged at the bottom of the first material suction hole. A material suction cover is arranged at the bottom of the second material suction hole. A first material guiding pipe is arranged above the first material suction hole. A second material guiding pipe is arranged above the second material suction hole. The outlet ends of the first material guiding pipe and the second material guiding pipe are connected in parallel to a material suction pipe, and a cutting knife is installed inside the first material guiding pipe.

[0028] The present invention provides an automatic welding platform for a freezer shell. Compared with the prior art, it has the following beneficial effects:

[0029] 1. The setting of the bearing component can achieve the following effects: The operator can place the processed parts on the pallet, and then the base moves along the conveying platform and drives the heat preservation inner container to move, realizing automatic transfer; the first motor can drive the heat preservation inner container to rotate self - sufficiently to complete the processing of different sides; the design of the closing plate can position and restrain the heat preservation inner container from the bottom, making the turnover of the heat preservation inner container more stable and reliable. The closing plate can also close the area below the reinforcing cover from the bottom. The closing plate and the outer baffle cooperate to form a left - right closed structure. In this way, it is convenient for the stable filling of the polyurethane foam heat preservation agent to flow; the closing plate can also prevent the heat preservation agent from blocking the drain hole, enabling the heat preservation agent to foam above the drain hole.

[0030] 2. The setting of the corner butt joint parts can achieve the following effects: The angle plates are pre - installed at the four corners of the heat preservation inner container. In this way, the first butt joint surface and the second butt joint surface of the outer arc block are convenient for the subsequent butt joint welding positioning of the exterior panels; the outer arc block can be used as a connecting structure for adjacent exterior panels and can form a complete external protection structure; the outer arc block can be used as a connecting reserved structure for the chamfer protection plate, facilitating the clamping and positioning of the chamfer protection plate.

[0031] 3. The setting of the reinforcing cover can achieve the following effects: The reinforcing cover can support the exterior panel from the inside, making the exterior panel have strong impact resistance; the reinforcing cover can be pre - positioned and connected with the exterior panel, facilitating the preliminary positioning of the exterior panel and improving the welding accuracy and efficiency of the exterior panel; the reinforcing cover can also be used as a reserved structure for the ring cover plate, facilitating the clamping of the ring cover plate, enabling the ring cover plate to quickly close on the exterior panel and the heat preservation inner container.

[0032] 4. The setting of the first double-seam welding assembly can achieve the following effects: it can automatically grasp the reinforcement cover and make the reinforcement cover fit on the outer wall of the heat preservation inner container; it can automatically weld the two side edges of the reinforcement cover to fix the reinforcement cover on the heat preservation inner container; after welding, the first welding torch cleaning component can clean the nozzle of the first laser welding torch. In this way, after welding, impurities on the protective lens can be removed, the service life of the protective lens can be extended, and the outlet end of the nozzle can be polished to reduce the accumulation of impurities at the nozzle outlet and avoid heat accumulation.

[0033] 5. The setting of the second double-seam welding assembly can achieve the following effects: it can automatically grasp the exterior panel and make the exterior panel fit on the outer wall of the reinforcement cover; it can automatically weld the two side edges of the exterior panel to place the exterior panel between the corner butt joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 Shows a schematic structural diagram of an automatic welding platform for a freezer shell of the present invention;

[0036] Figure 2 Shows a schematic structural diagram of the welded freezer shell of the present invention;

[0037] Figure 3 Shows a schematic structural diagram of the first double-seam welding assembly of the present invention;

[0038] Figure 4 Shows a schematic structural diagram of the clamping plate of the present invention;

[0039] Figure 5 Shows a schematic structural diagram of the welding state of the first double-seam welding assembly of the present invention;

[0040] Figure 6 Shows a schematic internal structure diagram of the first storage box of the present invention;

[0041] Figure 7 Shows a schematic structural diagram of the first welding torch cleaning component of the present invention;

[0042] Figure 8 Shows a schematic structural diagram of the internal cleaning component of the present invention;

[0043] Figure 9 Shows a schematic structural diagram of the external grinding component of the present invention;

[0044] Figure 10 Shows the schematic structural diagram of the corner docking part of the present invention;

[0045] Figure 11 Shows the schematic structural diagram of the docking of the corner docking part of the present invention with the exterior trim panel;

[0046] Figure 12 Shows the schematic structural diagram of the reinforcement cover of the present invention;

[0047] Figure 13 Shows the schematic structural diagram of the load-bearing structure of the load-bearing component of the present invention;

[0048] Figure 14 Shows Figure 13 The enlarged structural diagram at position A of

[0049] Figure 15 Shows the schematic structural diagram of the snap-fitting structure of the ring cover plate of the present invention;

[0050] Figure 16 Shows the schematic structural diagram of the second double-seam welding assembly of the present invention;

[0051] Figure 17 Shows the schematic structural diagram of the welding state of the second double-seam welding assembly of the present invention;

[0052] Figure 18 Shows Figure 16 The enlarged structural diagram at position B of

[0053] Figure 19 Shows the schematic structural diagram of the filling component of the present invention;

[0054] As shown in the figure: 1. Conveyor platform, 11. Bearing component, 111. Base, 112. First motor, 113. Pallet, 114. Support rod, 115. Enclosure plate, 2. First double-seam welding assembly, 21. First support rod, 22. First longitudinal guide rail, 23. First vertical guide rail, 24. First transverse guide rail, 241. Second motor, 25. First driving rod, 26. First storage component, 261. First storage box, 262. First push plate, 263. First side box body, 264. First outlet pipe, 27. Second transverse guide rail, 271. Third motor, 272. Fourth motor, 28. First laser welding gun, 281. Nozzle, 282. Protective lens, 29. Back plate, 291. Clamping plate, 292. Switching motor, 3. First welding gun cleaning component, 31. Recovery cylinder, 311. Vertical guide plate, 312. Recovery cavity, 313. Impurity extraction fan, 314. Fifth motor, 315. Air pump, 32. External grinding component, 321. Lower cover body, 3211. Inner outlet hole, 3212. Outer outlet hole, 322. Upper pipe body, 323. Grinding strip, 324. Sixth motor, 325. Ring cover, 33. Main branch pipe, 331. Constraint plate, 34. Inner pipe body, 341. Upper ring body, 342. Sealing plate, 343. Air pipe, 35. Take-up wheel, 351. Traction rope, 36. Lifting drive wheel, 37. Barrier airbag, 38. Scraper, 381. Cleaning cotton pad, 382. Brush hair, 4. Second double-seam welding assembly, 41. Second support rod, 42. Second longitudinal guide rail, 43. Second vertical guide rail, 44. Third transverse guide rail, 441. Sixth motor, 45. Second driving rod, 451. Adsorption plate, 46. Second laser welding gun, 47. Second welding gun cleaning component, 48. Second storage component, 481. Second storage box, 482. Second push plate, 483. Second side box body, 484. Second outlet pipe, 49. Fourth transverse guide rail, 491. Seventh motor, 492. Eighth motor, 5. Corner docking component, 51. Angle plate, 52. Outer baffle, 53. Middle connecting block, 54. Outer arc block, 6. Reinforcement cover, 61. U-shaped cover, 62. Connecting plate, 63. Partition plate, 64. Card hole, 7. Exterior decoration plate, 71. Card column, 711. Elastic piece, 8. Filling component, 81. Moving hanging plate, 811. First suction hole, 812. Second suction hole, 82. Drainage head, 83. Guide plate, 84. Shoveling plate, 85. Suction hood, 86. Cutting knife, 87. Suction pipe, 871. First guide pipe, 872. Second guide pipe, 88. Longitudinal movement guide rail, 89. Waste box, 9. Heat preservation inner liner, 91. Drainage hole, 9a. Corner guard plate, 9b. Ring cover plate, 91b. Claw. Detailed implementation mode

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0056] To solve the technical problems in the background art, the following automatic welding platform for a freezer shell is provided:

[0057] Combined with Figures 1 - 19 As shown, an automatic welding platform for a freezer shell provided by the present invention includes a conveying platform 1. Above it, in the conveying direction, there are a first welding station, a second welding station, and a filling station in sequence. A plurality of sets of bearing components 11 are installed on the top of the conveying platform 1. The bearing component 11 includes a base 111. A plurality of sets of bases 111 are arranged on the conveying platform 1. A first motor 112 is provided in the middle of the surface of the base 111. The output end of the first motor 112 is connected to a support plate 113. A plurality of sets of support rods 114 are provided at the edge of the support plate 113. A closing plate 115 is provided at the top of the plurality of sets of support rods 114. The support plate 113 is used to support the heat preservation inner container 9 from the bottom. The closing plate 115 is sleeved on the outer wall bottom of the heat preservation inner container. The closing plate 115 is placed above the side drainage hole 91 of the heat preservation inner container 9; a filling component 8 is provided at the filling station;

[0058] The corner docking part 5 includes an angle plate 51, a middle connection block 53, an outer arc block 54, and an outer baffle 52. The side cross-section of the angle plate 51 is a right angle. The angle plate 51 is installed at the corner of the freezer inner container 9 by bolts. The length of the angle plate 51 is the same as the height of the freezer inner container 9. A middle connection block 53 is provided at the side wall corner of the angle plate 51. An outer arc block 54 is provided at the outer end of the middle connection block 53. The two sides of the outer arc block 54 are first docking planes. The outer wall of the outer arc block 54 is an inverted arc angle surface. The middle of the inverted arc angle surface is a chamfered surface. The two sides of the inverted arc angle surface are second docking planes. The second docking plane and the first docking plane are perpendicularly distributed. Both the first docking plane and the second docking plane are welding surfaces; an outer baffle 52 is vertically provided at the end of the angle plate 51; a chamfer protection plate 9a is snap-fitted and connected to the outside of the outer arc block 54. The chamfer protection plate 9a is used to shield and protect the weld seam of the corner docking part;

[0059] The first double-seam welding assembly 2 is symmetrically arranged on both sides of the first welding station. The first double-seam welding assembly 2 includes a first position adjustment component, a first laser welding gun 28, a first grasping component, a first storage component 26, and a first welding gun cleaning component 3. The first position adjustment component is slidably mounted on the conveying platform 1. The first position adjustment component is used to drive the first laser welding gun 28 and the first grasping component to act. The first position adjustment component is located above the first storage component 26 and the first welding gun cleaning component. The first storage component 26 is used to stack and store multiple groups of reinforcement covers 6.

[0060] The second double-seam welding assembly 4 is symmetrically arranged on both sides of the second welding station. The second double-seam welding assembly 4 includes a second position adjustment component, a second laser welding gun 46, a second grasping component, a second storage component 48, and a second welding gun cleaning component 47. The second position adjustment component is slidably mounted on the conveying platform 1. The second position adjustment component is used to drive the second laser welding gun 46 and the second grasping component to act. The second position adjustment component is located above the second storage component 48 and the second welding gun cleaning component 47. The second storage component 48 is used to stack and store multiple groups of exterior decorative panels 7.

[0061] The welding platform includes the following states:

[0062] In the first state, the first grasping component grasps the reinforcement cover 6 and automatically fits it on the outer wall of the heat preservation inner container on all four sides. The first laser welding gun 28 welds the reinforcement cover 6 to the outer wall of the heat preservation inner container. Both sides of the reinforcement cover 6 are heat preservation cavities. After welding, the first welding gun cleaning component 3 cleans the protective lens 282 of the first laser welding gun 28 and the impurities at the end of the gun barrel.

[0063] In the second state, the second grasping component adsorbs and grasps the exterior decorative panel 7 and automatically fits it on the outer wall of multiple groups of reinforcement covers 6. The exterior decorative panel 7 is pre-positioned and clamped with the reinforcement cover 6. The exterior decorative panel 7 is placed between the first docking planes of two groups of corner docking parts 5. The second laser welding gun welds both ends of the exterior decorative panel 7. After welding, the second welding gun cleaning component cleans the protective lens 282 of the second laser welding gun 28 and the impurities at the end of the gun barrel.

[0064] In the third state, the filling component 8 fills the heat preservation cavity with heat preservation agent.

[0065] In the above solution:

[0066] 1. The setting of the bearing component can achieve the following effects: The operator can place the processed part on the pallet, and then the base moves along the conveying platform and drives the heat preservation inner container to move, realizing automatic transfer; The first motor can drive the heat preservation inner container to rotate, completing the processing of different sides; The design of the closing plate can position and restrain the heat preservation inner container from the bottom, making the turnover of the heat preservation inner container more stable and reliable. The closing plate can also close the bottom of the reinforcing cover from the bottom. The closing plate and the outer baffle cooperate to form a left-right closed structure. In this way, it is convenient for the stable filling of the polyurethane foam heat preservation agent to flow; The closing plate can also prevent the heat preservation agent from blocking the drain hole, enabling the heat preservation agent to foam above the drain hole;

[0067] 2. The setting of the corner docking component can achieve the following effects: The angle plates are pre-installed at the four corners of the heat preservation inner container. In this way, the first docking surface and the second docking surface of the outer arc block are convenient for the docking and welding positioning of the subsequent exterior decoration plates; The outer arc block can serve as the connection structure of adjacent exterior decoration plates and can form a complete external protection structure; The outer arc block can serve as the connection reserved structure of the chamfer protection plate, facilitating the clamping and positioning of the chamfer protection plate;

[0068] 3. The setting of the reinforcing cover can achieve the following effects: The reinforcing cover can support the exterior decoration plate from the inside, making the exterior decoration plate have strong impact resistance; The reinforcing cover can be pre-positioned and connected with the exterior decoration plate, facilitating the preliminary positioning of the exterior decoration plate and improving the welding accuracy and efficiency of the exterior decoration plate; The reinforcing cover can also serve as the reserved structure of the ring cover plate, facilitating the clamping of the ring cover plate, enabling the ring cover plate to quickly close on the exterior decoration plate and the heat preservation inner container;

[0069] 4. The setting of the first double-seam welding assembly can achieve the following effects: It can automatically grab the reinforcing cover and make the reinforcing cover fit on the outer wall of the heat preservation inner container; It can automatically weld the two side edges of the reinforcing cover, making the reinforcing cover welded and fixed on the heat preservation inner container; After welding, the first welding torch cleaning component can clean the nozzle of the first laser welding torch. In this way, after welding, impurities on the protective lens can be removed, extending the service life of the protective lens. It can also polish the outlet end of the nozzle, reducing the accumulated impurities at the nozzle outlet and avoiding heat accumulation;

[0070] 5. The setting of the second double-seam welding assembly can achieve the following effects: It can automatically grab the exterior decoration plate and make the exterior decoration plate fit on the outer wall of the reinforcing cover; It can automatically weld the two side edges of the exterior decoration plate, making the exterior decoration plate placed between the corner docking components.

[0071] In this embodiment, the reinforcing cover 6 includes a U-shaped cover 61. Connecting plates 62 are symmetrically arranged on both sides of the U-shaped cover 61. A partition plate 63 is arranged above the interior of the U-shaped cover 61. Card holes 64 are formed above and below the outer wall of the U-shaped cover 61, and the two groups of card holes 64 are respectively located above and below the partition plate 63. In the first state, the top end of the reinforcing cover 6 is flush with the top end of the heat preservation inner container, and a flow gap is left between the bottom end of the reinforcing cover 6 and the closing plate 115. In the third state, the heat preservation agent is filled below the partition plate 63 of each reinforcing cover 6 along the flow gap.

[0072] In the above solution: The structure of the U-shaped cover can stably support the exterior decoration plate. The design of the partition plate can separate the interior of the U-shaped cover, so that when filling the heat preservation agent subsequently, the heat preservation agent can only be filled below and will not be filled above. In this way, the upper part of the partition plate is a cavity, which is convenient for the ring cover plate to be clamped.

[0073] In this embodiment, a plurality of card columns 71 are arranged on the inner wall of the exterior decoration plate 7. The card columns 71 penetrate through the card holes 64 relatively. Elastic pieces 711 are symmetrically arranged on the outer wall of the card columns 71, and the elastic pieces 711 cooperate to stop against the inner side of the U-shaped cover 61. A ring cover plate 9b is cooperatively covered on the top of the heat preservation inner container and the heat preservation cavity. A plurality of claws 91b are vertically arranged on the bottom surface of the ring cover plate 9b, and the claws 91b are clamped to the inner ends of the card columns 71.

[0074] In the above solution: When the exterior decoration plate is docked with the reinforcing cover, the card columns are cooperatively inserted into the card holes, and the elastic pieces can stop the card columns from the inside to realize the clamping and positioning of the exterior decoration plate. The inner ends of the card columns can be cooperatively clamped with the claws of the ring cover plate to realize the stable positioning of the card columns.

[0075] In order to realize the automatic material taking and transfer in place of the reinforcing cover, the following implementation scheme is given:

[0076] In this embodiment, the first position adjustment component includes a first support rod 21, a first longitudinal guide rail 22, a first vertical guide rail 23, and a first transverse guide rail 24; the first grabbing component includes a first driving rod 25, a back plate 29 and a clamping plate 291; the first support rod 21 is symmetrically provided with two groups, the first support rod 21 is vertically slidably installed on the conveying platform 1, the top of the first support rod 21 is vertically provided with a first longitudinal guide rail 22, the inner wall of the first longitudinal guide rail 22 is slidably installed with a first vertical guide rail 23, the inner wall of the first vertical guide rail 23 is provided with a first vertical groove and a second vertical groove, the interior of the first vertical groove is vertically slidably installed with a first moving block, the first transverse guide rail 24 is rotatably installed between the two groups of first moving blocks, and a second motor 241 is installed at the rotating connection, the first transverse guide rail A first driving rod 25 is installed on the bottom surface of 24 for horizontal sliding, and the output end of the first driving rod 25 is rotatably connected to the back plate 29 and a switching motor 292 is installed at the rotating connection. A clamping plate 291 is installed on the inner wall of the back plate 29 for opening and closing sliding. The clamping plate 291 is used to clamp the middle part of the end of the reinforcement cover 6. The switching motor 292 drives the back plate 29 to rotate so that the opening of the reinforcement cover 6 faces the thermal insulation liner; a second moving block is installed vertically for sliding inside each group of second vertical grooves, a second horizontal guide rail 27 is rotatably installed inside the second moving block, and a third motor 271 is installed at the rotating connection, a third moving block is slidably installed on the side wall of the second horizontal guide rail 27, and the side wall of the third moving block is rotatably connected to the first laser welding gun 28 and a fourth motor 272 is installed at the rotating connection.

[0077] In the above scheme: when grabbing the reinforcement cover, the first driving rod is adjusted to extend vertically downward, the first vertical guide rail moves along the first longitudinal guide rail, the clamping plate clamps the reinforcement cover at the top, and then the first driving rod is retracted, thereby driving the reinforcement cover to move upward and disengage from the first storage component, the first vertical guide rail moves longitudinally along the first longitudinal guide rail, the second motor drives the first transverse guide rail to rotate, so that the first driving rod and the reinforcement cover rotate to a vertical state, and then the motor is switched to drive the back plate to rotate, so that the opening of the reinforcement cover faces the thermal insulation liner, and then the first driving rod is extended outward, so that the reinforcement cover is attached to the outer wall of the thermal insulation liner, and during the welding process, the clamping plate always clamps and positions the reinforcement cover at the top, and the design of the U-shaped cover can be used as an embedding area for the clamping plate, so that the clamping plate will not conflict with the thermal insulation liner.

[0078] In this embodiment, the first storage component 26 includes a first storage box 261. The first storage box 261 is installed between two groups of first support rods 21. Inside the first storage box 261, multiple groups of reinforcing covers 6 with upward openings are stacked. A first push plate 262 is vertically slidably installed at the inner bottom of the first storage box 261. At the top of both side faces of the first storage box 261, first side boxes 263 are slidably installed. Inside the first side boxes 263, flux is stored. The top of the first side box 263 is connected to a first discharge pipe 264. The first discharge pipe 264 is placed parallel above the first storage box 261. Discharge holes are formed in the bottom surface of the first discharge pipe 264.

[0079] In the above solution: during replenishment, the first push plate moves upward, thereby pushing the reinforcing cover upward, causing the reinforcing covers to be replenished one by one upward; both ends of the first storage box are of an open structure, and the open structure facilitates the insertion of the clamping plate; before taking materials, the first side box moves along the first storage box, and the flux in the first storage box is discharged downward through the first discharge pipe and then downward through the discharge holes, so that the flux is evenly applied to the connecting plate of the reinforcing cover, realizing the automatic application of the flux and facilitating subsequent welding.

[0080] To clean the nozzle of the laser welding gun, the following solution is given in this embodiment:

[0081] In this embodiment, the first welding gun cleaning component 3 includes a recovery cylinder 31, an external grinding component 32, and an internal cleaning component. Inside the recovery cylinder 31, a vertical guide plate 311 is installed. One side of the vertical guide plate 311 is a recovery chamber 312. An impurity extraction fan 313 is installed in the recovery chamber 312. On the other side surface of the vertical guide plate 311, a fifth motor 314 is slidably installed. The top output end of the fifth motor 314 is connected to a main branch pipe 33. The top end of the main branch pipe 33 is connected to the internal cleaning component. The internal cleaning component extends into the nozzle 281 of the first laser welding gun 28. The internal cleaning component is used to clean the protective lens 282 and the inner wall of the nozzle 281. An external grinding component 32 is provided at the top of the recovery cylinder 31. The external grinding component 32 is sleeved on the outer wall of the outlet end of the nozzle 281. The external grinding component 32 is used to clean the impurities on the outer wall of the nozzle 281. The recovery chamber 312 is used to recover the impurities cleaned by the internal cleaning component and the external grinding component 32.

[0082] In the above solution, after welding is completed, the third motor drives the second horizontal guide rail to rotate downward, the fourth motor drives the first laser welding gun to face vertically downward, and then the second moving block slides downward along the second vertical groove, so that the nozzle of the first laser welding gun is sleeved on the recovery cylinder, the main branch pipe and the internal cleaning component are inserted into the nozzle, and the external grinding component is sleeved on the end of the nozzle. In this way, the internal cleaning component and the external grinding component can work synchronously to perform synchronous grinding and cleaning inside and outside.

[0083] In this embodiment, a constraint plate 331 is provided at the inner top of the main branch pipe 33. An inner pipe body 34 vertically slides through the constraint plate 331. An upper ring body 341 is provided on the outer wall of the top end of the inner pipe body 34. The top end of the inner pipe body 34 slides out of the main branch pipe 33. Lifting drive wheels 36 are installed on both sides of the inner pipe body 34. The inner top of the inner pipe body 34 is of an open structure. A sealing plate 342 is provided at the inner bottom of the inner pipe body 34. An accommodation cavity is above the sealing plate 342. A gas pipe 343 communicates below the sealing plate 342. The gas pipe 343 penetrates the main branch pipe 33 and is connected to an air pump 315. The air pump 315 is arranged below a fifth motor 314; the top end of the main branch pipe 33 is hermetically connected with a barrier airbag 37. A winding wheel 35 is installed inside the accommodation cavity. A traction rope 351 is wound around the outer wall of the winding wheel 35. The traction end of the traction rope 351 is connected to the barrier airbag 37; the top end of the main branch pipe 33 is symmetrically and rotatably installed with a scraping plate 38. A cleaning cotton pad 381 is provided on the upper surface of the scraping plate 38. A brush hair 382 is embedded at the outer end of the scraping plate 38; the inner cleaning component includes the following working steps:

[0084] S1. The scraping plate 38 rotates downward and folds up. The inner pipe body 34 is retracted into the main branch pipe 33. The barrier airbag 37 deflates and is retracted into the accommodation cavity; the main branch pipe 33 and the scraping plate 38 extend into the spray pipe 281;

[0085] S2. The scraping plate 38 rotates and unfolds to be horizontal and fits with the protective lens 282; the main branch pipe 33 rotates, and the cleaning cotton pad 381 wipes and cleans the protective lens 282;

[0086] S3. The main branch pipe 33 rotates and descends. The brush hair 382 cleans the inner wall of the spray pipe 281. At the same time, the inner pipe body 34 extends out, and the barrier airbag 37 expands into a circle and forms a barrier above the scraping plate 38 to prevent dust from floating upward to the protective lens 282.

[0087] In the above solution:

[0088] 1. In S1, both the scraping plate and the inner pipe body are retracted, which is convenient for the inner cleaning component to be inserted into the spray pipe;

[0089] 2. In S2, the inner pipe body remains retracted and the scraping plate unfolds. In this way, the cleaning cotton pad can contact the protective lens. The retracted inner pipe body and the retracted barrier airbag will not affect the contact of the cleaning cotton pad. Thus, when the main branch pipe rotates, the cleaning cotton pad can be driven to wipe and clean the protective lens;

[0090] 3. In S3, the inner tube body extends outwards, thus blocking the outward extension of the barrier airbag, facilitating the deployment of the barrier airbag. The air pump supplies high-pressure gas into the recovery chamber, and then the high-pressure gas fills the barrier airbag, causing the barrier airbag to fully expand and deploy. The inflated barrier airbag can form a barrier above the scraper. In this way, secondary pollution to the protective lens can be avoided when cleaning the impurities on the inner wall of the nozzle subsequently. When the main branch pipe rotates, it can drive the scraper and the inflated barrier airbag to rotate. In this way, the bristles can scrape and clean the inner wall of the nozzle, achieving the cleaning inside the nozzle.

[0091] 4. After the cleaning is completed, the air in the accommodation chamber is deflated, the barrier airbag is retracted, and the winding wheel winds the traction rope, which can drive the barrier airbag to be retracted into the accommodation chamber, realizing the automatic storage of the barrier airbag. Subsequently, the inner tube body descends and retracts, and the upper ring body stops against the top end of the main branch pipe.

[0092] In this embodiment, the outer polishing component 32 includes a lower cover body 321. The upper tube body 322 is rotatably provided at the top of the lower cover body 321. The outer wall of the lower cover body 321 is provided with a sixth motor 324 for driving the upper tube body 322 to rotate self - sufficiently. The inner wall of the upper tube body 322 is provided with multiple groups of polishing strips 323. The shape of the polishing strips 323 is adapted to the outer wall shape of the nozzle 281. The bottom surface of the lower cover body 321 is provided with an inner discharge hole 3211 and an outer discharge hole 3212. The inner discharge hole 3211 is in relative communication with the nozzle 281. The outer discharge hole 3212 is located outside the polishing strips 323. The bottom surface of the lower cover body 321 is provided with an annular cover 325, and the annular cover 325 is in communication with the recovery chamber 312.

[0093] In the above solution: The sixth motor can drive the upper tube body to rotate, and then drive the polishing strips to rotate. The polishing strips can polish the end of the nozzle. The polished impurities are discharged from the outer discharge hole to the annular cover, and the impurities cleaned by the inner cleaning component are discharged to the annular cover through the inner discharge hole. Finally, the impurities in the annular cover are discharged to the recovery chamber by the impurity extraction fan, realizing the recovery of impurities.

[0094] In this embodiment, the second storage component 48 includes a second storage box 481. Inside the second storage box 481, multiple groups of exterior decorative panels 7 are stacked. At the inner bottom of the second storage box 481, a second push plate 482 is slidably installed vertically; on the top of both side faces of the second storage box 481, second side boxes 483 are slidably installed. Inside the second side boxes 483, flux is stored. At the top of the second side boxes 483, second outlet pipes 484 are connected. The second outlet pipes 484 are relatively arranged at the welding surfaces at both ends of the exterior decorative panel 7. The first position adjustment component includes a second support rod 41, a second longitudinal guide rail 42, a second vertical guide rail 43, and a third transverse guide rail 44; the first grasping component includes a second driving rod 45 and an adsorption plate 451; there are two groups of second support rods 41 symmetrically arranged. The second support rods 41 are slidably installed vertically on the conveying platform 1. At the top end of the second support rods 41, a second longitudinal guide rail 42 is vertically provided. Inside the inner wall of the second longitudinal guide rail 42, a second vertical guide rail 43 is slidably installed. Inside the inner wall of the second vertical guide rail 43, a third vertical groove and a fourth vertical groove are provided. Inside the third vertical groove, a fourth moving block is slidably installed vertically. Between the two groups of fourth moving blocks, a third transverse guide rail 44 is rotatably installed, and a sixth motor 441 is installed at the rotation connection. On the bottom surface of the third transverse guide rail 44, a second driving rod 45 is slidably installed horizontally. The output end of the second driving rod 45 is connected to the adsorption plate 451; inside each group of fourth vertical grooves, a fifth moving block is slidably installed vertically. Inside the fifth moving block, a fourth transverse guide rail 49 is rotatably installed, and a seventh motor 491 is installed at the rotation connection. On the side wall of the fourth transverse guide rail 49, a sixth moving block is slidably installed. The side wall of the sixth moving block is rotatably connected to a second laser welding gun 46, and an eighth motor 492 is installed at the rotation connection. In the above solution, automatic adsorption, automatic fitting, and automatic welding of the exterior decorative panel can be achieved, and the working principle is similar to that of the first double-slit welding assembly.

[0095] After welding, in order to further improve the heat preservation effect of the freezer shell, the following solution is given:

[0096] In this embodiment, the filling component 8 includes a movable hanging plate 81, a waste box 89, and a longitudinal moving guide rail 88. The longitudinal moving guide rails 88 are symmetrically arranged above the filling station. A movable hanging plate 81 is slidably installed between the two groups of longitudinal moving guide rails 88. At one end of the filling station, a waste box 89 is provided. At the front end of the bottom surface of the movable hanging plate 81, multiple liquid discharge heads 82 are provided. The liquid discharge heads 82 are used to fill the heat preservation agent into the heat preservation cavity. At the rear end of the movable hanging plate 81, a first material suction hole 811 and a second material suction hole 812 are provided. At the bottom of the first material suction hole 811, a material guiding plate 83 and a material shoveling plate 84 are provided. At the bottom of the second material suction hole 812, a material suction cover 85 is provided. Above the first material suction hole 811, a first material guiding pipe 871 is provided. Above the second material suction hole 812, a second material guiding pipe 872 is provided. The outlet ends of the first material guiding pipe 871 and the second material guiding pipe 872 are connected in parallel to a material suction pipe 87. A cutting knife 86 is installed inside the first material guiding pipe 871.

[0097] In the above solution: when the heat preservation inner container moves to the filling station, the moving suspension plate moves above the heat preservation inner container, and the liquid discharging head discharges the heat preservation agent into each heat preservation cavity. However, after the foaming is completed, the moving suspension plate moves along the longitudinal moving guide rail, the material shoveling plate contacts the surface of the heat preservation inner container, the material shoveling plate scrapes off the foaming convex part, and then the excess material enters the first material suction hole through the material guiding plate and the material shoveling plate. The cutting knife reciprocates to cut up the excess material for subsequent suction. Subsequently, the suction hood passes above the heat preservation inner container, the suction hood attracts the excess waste, and the excess waste and the broken waste are discharged to the waste box through the suction pipe.

[0098] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0099] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic welding platform for refrigerator shell, characterized in that: include: A conveying platform, above which are arranged in sequence along the conveying direction a first welding station, a second welding station and a filling station, a plurality of groups of bearing components are installed on the top of the conveying platform, the bearing components include a base, the plurality of groups of bases are arranged on the conveying platform, a first motor is arranged in the middle of the surface of the base, the output end of the first motor is connected to a support plate, a plurality of groups of support rods are arranged at the edge of the support plate, a closing plate is arranged at the top of the plurality of groups of support rods, the support plate is used to support the thermal insulation liner from the bottom, the closing plate is sleeved on the bottom of the outer wall of the thermal insulation liner, and the closing plate is placed above the drainage hole on the side of the thermal insulation liner; a filling assembly is arranged on the filling station; The corner joint piece includes a corner plate, a middle joint block, an outer arc block and an outer baffle plate. The side section of the corner plate is a right angle. The corner plate is installed at the corner of the thermal insulation liner by bolts. The length of the corner plate is the same as the height of the thermal insulation liner. A middle joint block is provided at the corner of the side wall of the corner plate. An outer arc block is provided at the outer end of the middle joint block. The outer wall of the outer arc block is a chamfered angle surface. The middle part of the chamfered angle surface is a chamfered surface. The two sides of the chamfered surface symmetrical to the middle joint block are second joint planes. The two side walls of the outer arc block symmetrical to the middle joint block are first joint planes. The second joint plane is vertically distributed with the first joint plane. Both the first joint plane and the second joint plane are welding surfaces. An outer baffle plate is vertically provided at the end of the corner plate. The outer side of the outer arc block is snap-fitted and connected to the chamfered guard plate. The chamfered guard plate is used to shield and protect the weld of the corner joint piece. A first double-seam welding assembly is symmetrically arranged on both sides of the first welding station. The first double-seam welding assembly includes a first position adjustment component, a first laser welding gun, a first grabbing component, a first storage component and a first welding gun cleaning component. The first position adjustment component is slidably mounted on the conveying platform. The first position adjustment component is used to drive the first laser welding gun and the first grabbing component to move. The first position adjustment component is located above the first storage component and the first welding gun cleaning component. The first storage component is used to stack and store multiple groups of reinforcement covers. A second double-seam welding assembly is symmetrically arranged on both sides of the second welding station. The second double-seam welding assembly includes a second position adjustment component, a second laser welding gun, a second grabbing component, a second storage component and a second welding gun cleaning component. The second position adjustment component is slidably mounted on the conveying platform. The second position adjustment component is used to drive the second laser welding gun and the second grabbing component to move. The second position adjustment component is located above the second storage component and the second welding gun cleaning component. The second storage component is used to stack and store multiple sets of exterior panels. The welding platform includes the following states: In the first state, the first grabbing component grabs the reinforcing cover and automatically fits it to the four sides of the outer wall of the thermal insulation inner tank, and the first laser welding gun welds the reinforcing cover to the outer wall of the thermal insulation inner tank, and the two sides of the reinforcing cover are thermal insulation cavities; after welding is completed, the first welding gun cleaning component cleans the impurities of the protective lens and the end of the barrel of the first laser welding gun; In the second state, the second gripping component absorbs and grips the exterior panel and automatically fits it to the outer walls of the multiple sets of reinforcement covers. The exterior panel and the reinforcement cover are pre-positioned and clamped, and the exterior panel is placed between the first docking planes of the two sets of corner docking parts. The second laser welding gun welds the two ends of the exterior panel; after welding, the second welding gun cleaning component cleans the impurities on the protective lens and the end of the barrel of the second laser welding gun; In the third state, the filling component fills the heat preservation chamber with the heat preservation agent.

2. The automatic welding platform for refrigerator shell according to claim 1, characterized in that: The reinforced cover comprises a U-shaped cover, connecting plates are symmetrically provided on both sides of the U-shaped cover, a partition is provided on the upper part of the interior of the U-shaped cover, and clamping holes are opened on the upper and lower parts of the outer wall of the U-shaped cover, and the two groups of clamping holes are respectively located at the upper and lower parts of the partition; in the first state, the top of the reinforced cover is flush with the top of the thermal insulation liner, and a flow gap is left between the bottom end of the reinforced cover and the closing plate; in the third state, the thermal insulation agent is filled along the flow gap to the bottom of the partition of each reinforced cover.

3. The automatic welding platform for refrigerator shell according to claim 2, characterized in that: The inner wall of the exterior panel is provided with multiple groups of clamping columns, which relatively penetrate the clamping holes, and the outer wall of the clamping column is symmetrically provided with spring plates, which cooperate to stop the inner side of the U-shaped cover; the top of the insulation liner and the insulation cavity is covered with a ring cover plate, and the bottom surface of the ring cover plate is vertically provided with multiple claws, which are engaged with the inner ends of the clamping columns.

4. The automatic welding platform for refrigerator shell according to claim 3 is characterized in that: The first position adjustment component includes a first support rod, a first longitudinal guide rail, a first vertical guide rail, and a first transverse guide rail; the first grabbing component includes a first driving rod, a back plate and a clamping plate; the first support rod is symmetrically provided with two groups, the first support rod is vertically slidably installed on the conveying platform, the top of the first support rod is vertically provided with a first longitudinal guide rail, the inner wall of the first longitudinal guide rail is slidably installed with a first vertical guide rail, the inner wall of the first vertical guide rail is provided with a first vertical groove and a second vertical groove, the first moving block is vertically slidably installed inside the first vertical groove, the first transverse guide rail is rotatably installed between the two groups of first moving blocks, and a second motor is installed at the rotating connection, and the bottom of the first transverse guide rail is provided with a first longitudinal guide rail. A first driving rod is installed on the surface for horizontal sliding, and the output end of the first driving rod is rotatably connected to the back plate and a switching motor is installed at the rotating connection. A clamping plate is installed on the inner wall of the back plate for opening and closing sliding, and the clamping plate is used to clamp the middle part of the end of the reinforcement cover. The switching motor drives the back plate to rotate so that the opening of the reinforcement cover faces the thermal insulation liner; a second moving block is installed vertically for sliding inside each group of second vertical grooves, a second horizontal guide rail is rotatably installed inside the second moving block and a third motor is installed at the rotating connection, a third moving block is slidably installed on the side wall of the second horizontal guide rail, and the side wall of the third moving block is rotatably connected to the first laser welding gun and a fourth motor is installed at the rotating connection.

5. The automatic welding platform for refrigerator shell according to claim 4, characterized in that: The first storage component includes a first storage box, which is installed between two groups of first support rods, and multiple groups of reinforcement covers with openings facing upward are stacked inside the first storage box, and a first push plate is vertically slidably installed on the bottom of the interior of the first storage box; first side box bodies are slidably installed on the top of both sides of the first storage box, and flux is stored in the first side box bodies. The top of the first side box body is connected to a first export pipe, and the first export pipe is placed parallel to the top of the first storage box, and a discharge hole is opened on the bottom of the first export pipe.

6. The automatic welding platform for refrigerator shell according to claim 5, characterized in that: The first welding gun cleaning component includes a recovery tube, an external grinding component and an internal cleaning component. A vertical guide plate is installed inside the recovery tube. One side of the vertical guide plate is a recovery chamber. The recovery chamber is equipped with an impurity extraction fan. The other side of the vertical guide plate is slidably equipped with a fifth motor. The top output end of the fifth motor is connected to the main branch pipe. The top of the main branch pipe is connected to the internal cleaning component. The internal cleaning component extends into the nozzle of the first laser welding gun. The internal cleaning component is used to clean the protective lens and the inner wall of the nozzle. An external grinding component is provided on the top of the recovery tube. The external grinding component is mounted on the outer wall of the outlet end of the nozzle. The external grinding component is used to clean impurities on the outer wall of the nozzle. The recovery chamber is used to recover impurities cleaned by the internal cleaning component and the external grinding component.

7. The automatic welding platform for refrigerator shell according to claim 6, characterized in that: The top of the main branch pipe is provided with a constraint plate, and the inner part of the constraint plate vertically slides through the inner tube body, the outer wall of the top end of the inner tube body is provided with an upper ring body, the top end of the inner tube body slides outwardly and extends the main branch pipe, and lifting drive wheels are installed on both sides of the inner tube body. The inner top of the inner tube body is an open structure, and the inner bottom of the inner tube body is provided with a sealing plate, and the upper part of the sealing plate is a accommodating chamber, and the lower part of the sealing plate is connected to the air pipe, which passes through the main branch pipe and is connected to the air pump, and the air pump is arranged below the fifth motor; the top of the main branch pipe is sealed and connected with a barrier airbag, and a winding wheel is installed inside the accommodating chamber, and a traction rope is wound around the outer wall of the winding wheel, and the traction end of the traction rope is connected to the barrier airbag; a scraper is symmetrically rotatably installed on the top of the main branch pipe, and a cleaning cotton pad is provided on the upper surface of the scraper, and bristles are embedded in the outer end of the scraper; the internal cleaning component includes the following working steps: S1, the scraper is rotated downward and folded, the inner tube body is retracted into the main branch pipe, the air blocking airbag is deflated and retracted into the receiving chamber; the main branch pipe and the scraper are extended into the nozzle; S2. The scraper rotates and unfolds to a horizontal position and fits the protective lens; the main branch pipe rotates and the cleaning cotton pad wipes and cleans the protective lens; S3. The main branch pipe rotates and descends, and the bristles clean the inner wall of the nozzle. At the same time, the inner tube extends outward, and the barrier airbag expands into a round shape and forms a barrier above the scraper to prevent dust from floating upward to the protective lens.

8. The automatic welding platform for refrigerator shell according to claim 7, characterized in that: The external grinding component includes a lower cover body, an upper tube body is rotatably provided on the top of the lower cover body, a sixth motor for driving the upper tube body to rotate is provided on the outer wall of the lower cover body, a plurality of groups of grinding strips are provided on the inner wall of the upper tube body, the shape of the grinding strips is adapted to the shape of the outer wall of the nozzle, an inner lead-out hole and an outer lead-out hole are provided on the bottom surface of the lower cover body, the inner lead-out hole is relatively connected with the nozzle, the outer lead-out hole is located on the outside of the grinding strip, and an annular cover is provided on the bottom surface of the lower cover body, which is connected with the recovery chamber.

9. The automatic welding platform for refrigerator shell according to claim 8, characterized in that: The second storage component includes a second storage box, multiple groups of exterior panels are stacked inside the second storage box, and a second push plate is vertically slidably installed on the bottom of the interior of the second storage box; second side box bodies are slidably installed on the top of both side surfaces of the second storage box, and flux is stored inside the second side box bodies. The top of the second side box bodies is connected to a second export pipe, and the second export pipe is relatively arranged on the two end welding surfaces of the exterior panels.

10. The automatic welding platform for refrigerator shell according to claim 9, characterized in that: The filling assembly includes a movable hanging plate, a waste box and a longitudinal guide rail. The longitudinal guide rail is symmetrically arranged above the filling station. A movable hanging plate is slidably installed between two sets of longitudinal guide rails. A waste box is provided at one end of the filling station. A plurality of drainage heads are provided at the front end of the bottom of the movable hanging plate. The drainage heads are used to fill the insulation agent into the insulation cavity. A first suction hole and a second suction hole are opened at the rear end of the movable hanging plate. A guide plate and a shovel plate are provided at the bottom of the first suction hole. A suction cover is provided at the bottom of the second suction hole. A first guide pipe is provided above the first suction hole. A second guide pipe is provided above the second suction hole. The outlet ends of the first guide pipe and the second guide pipe are connected in parallel with the suction pipe, and a cutting knife is installed inside the first guide pipe.

Images