Meter box body welding apparatus and method

Abstract

The present application relates to the technical field of metering box production, and discloses metering box body welding equipment, which comprises a table top, a support frame arranged on the table top, two adjusting assemblies arranged on opposite sides of the table top, a pair of baffles slidingly adjusted in each adjusting assembly, an adjusting and limiting assembly arranged in the middle of the table top, four limiting plates driven to move and adjust, and four opposite surfaces of the limiting plates respectively abutting against opposite surfaces of the baffles, and a pushing assembly arranged on the table top and used to push the box body side plates stored between the baffles to the direction of the limiting plates. The metering box body welding equipment and method can realize automatic splicing of the U-shaped box shell and the box body side plates, avoid splicing misplacement caused by manual assistance, automatically weld the horizontal and vertical gaps formed by splicing between the U-shaped box shell and the box body side plates through the moving welding assembly, ensure the welding effect, and improve the welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of metering box manufacturing technology, specifically to metering box body welding equipment and methods. Background Technology

[0002] A metering box is a collection of metering instruments and auxiliary equipment necessary for measuring electrical energy. It includes electricity meters, voltage and current transformers and their secondary circuits, electricity metering panels, cabinets, boxes, etc. Metering boxes can be installed in a suspended or floor-mounted manner. To ensure installation quality, the suspended box must be fixed with built-in expansion bolts. The bolt size must meet the requirements of safety and firmness and outdoor installation conditions.

[0003] The metering box consists of a U-shaped shell, two side panels, and a door panel. During production, the side panels are manually assembled with the opposite openings on both sides of the U-shaped shell. First, spot welding is performed at the joints. After spot welding, the gaps are welded manually or using welding equipment. As can be seen, the existing welding technology involves cumbersome steps and relies on manual assistance. The assembly and welding efficiency is low, and operational errors are prone to occur, affecting the quality of the formed box. Therefore, we propose a welding equipment and method for the metering box to solve the existing technical defects. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a welding device and method for metering box bodies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metering box welding equipment, including a table and a support frame disposed on the table, and further comprising:

[0006] Two adjustment components are respectively located on opposite sides of the platform, and each adjustment component has a pair of baffles that can be slidably adjusted.

[0007] An adjustment limiting component is located in the middle of the platform, which drives four limiting plates to move and adjust, with the four limiting plates respectively abutting the opposite surfaces of the baffles on both sides;

[0008] A material pushing component, located on the platform, pushes the side panels of the box stored between the baffles toward the limiting plate;

[0009] A perforation is provided in the middle of the platform, located between the two baffles on both sides, to allow the movable carrier plate to pass through;

[0010] An electric push rod is positioned between the support frames to move the movable carrier plate.

[0011] A clamping roller assembly is mounted on the movable carrier plate to clamp the U-shaped box frame;

[0012] The displacement component and the vacuuming component are both located on the adjustment and limiting component, which drive the two hollow seats to move. Multiple suction cups are connected to the hollow seats, which work with the vacuuming component to adsorb and move the side panels of the storage box on both sides and form a splice with the box frame.

[0013] A movable welding assembly is placed on the platform and moves the welding gun to weld the joint seam.

[0014] Furthermore, the adjustment assembly includes two sets of adjustment slots, multiple adjustment screws, and adjustment nuts;

[0015] Two sets of adjustment slots are respectively located on the left and right sides of the upper surface of the platform. A pair of baffles slide in each set of adjustment slots. The baffles are locked into the adjustment slots by the multiple adjustment screws and the adjustment nuts through threaded engagement.

[0016] Using the above method, the baffle slides in the adjustment groove so that the distance between the baffles is equal to the length of the side plate of the box. After adjustment, the adjusting nut on the adjusting screw is tightened to fix the baffle after adjustment, which facilitates the limiting placement of the side plate of the box after adjustment.

[0017] Furthermore, the adjustment and limiting assembly includes a bracket, a limiting sliding hole, a servo motor, a bidirectional threaded rod, and a pair of movable frames;

[0018] A bracket is located between the front and rear sides of the middle part of the platform, above the middle part of the through hole, and has the limiting sliding hole thereon;

[0019] A servo motor is located at one end of the top of the bracket, driving the bidirectional threaded rod to rotate. The bidirectional threaded rod is connected to the other end of the top of the bracket for rotation. The bidirectional threaded rod has a forward thread groove and a reverse thread groove on both sides of the center.

[0020] A pair of movable frames are threadedly connected to the forward-rotating threaded groove and the reverse-rotating threaded groove respectively, and they pass through the limiting sliding hole. The two ends of each movable frame are connected to the limiting plate respectively.

[0021] Using the above scheme, a servo motor drives a bidirectional threaded rod to rotate. The forward and reverse threaded grooves are threadedly connected to the moving frame, and the limiting sliding hole limits the sliding of the moving frame. This allows the moving frame to move in opposite directions. The movement of the moving frame drives the limiting plate to move synchronously. The limiting plate moves and fits against the baffle to block and limit the side panel of the storage box. When the limiting plate moves and separates from the baffle, the suction cup can easily pick up the side panel of the box.

[0022] Furthermore, the material pushing assembly includes two electric push rods respectively disposed on the left and right sides of the table surface. The push rod ends of the electric push rods are provided with push plates, and the two push plates are respectively located between the baffles on both sides.

[0023] Using the above solution, after storing and retrieving the box side panels, the electric push rod 2 pushes the push plate to move, which in turn moves the box side panels stored between the baffles until the box side panels are in contact with the push plate. This allows the box side panels to be vertically stacked and stored between the baffles, ensuring that the box side panels adsorbed by the suction cup are in a vertical state, which facilitates the subsequent movement of the adsorbed box side panels and precise splicing with the U-shaped box shell.

[0024] Furthermore, the clamping roller assembly includes a pair of linear electric guide rails, a plurality of directional grooves, clamping plates, and a plurality of clamping rollers;

[0025] A pair of linear electric guide rails are respectively located on the front and rear sides of the upper surface of the mobile carrier plate based on the center of the mobile carrier plate. The guide rail slide is provided with the clamping plate, and the opposite sides of the clamping plate are respectively provided with a plurality of clamping rollers.

[0026] Multiple directional slides are arranged in two groups on the movable carrier plate, and the two groups of directional slides are slidably connected to the clamping plate respectively.

[0027] Using the above scheme, the linear electric guide rail drives the clamping plate and clamping rollers to move within the directional slide groove, thereby centered the U-shaped box shell on the moving carrier plate. At the same time, the clamping rollers cooperate to roll and clamp the U-shaped box shell, so that when the adsorbed box side plate moves and splices with the U-shaped box shell, the U-shaped box shell moves synchronously, ensuring that the spliced ​​U-shaped box shell and box side plate are located in the middle of the moving carrier plate.

[0028] Furthermore, the left and right sides of the upper surface of the movable carrier plate are provided with welding pre-reserved grooves that extend from front to back.

[0029] The above-mentioned solution, with its pre-reserved welding groove, facilitates the movement of the welding gun within the groove, enabling the welding of the transverse gaps between the U-shaped shell and the side panels.

[0030] Furthermore, the displacement assembly includes an electric push rod three, a loading seat, and a pair of electric push rods four;

[0031] Electric push rod three is located at the top center of the bracket, and the loading seat is provided at the push rod end;

[0032] A pair of electric push rods are respectively located on the left and right sides of the loading seat, and their push rod ends are respectively connected to the hollow seat.

[0033] Using the above scheme, the electric push rod pushes the hollow seat to move, so that the hollow seats on both sides move toward the side panels of the storage box on both sides, so that the suction cups adhere to and adsorb the side panels of the storage box, and at the same time facilitate the movement of the adsorbed side panels of the box to splice with the openings on both sides of the U-shaped box shell.

[0034] The installation of the third electric push rod ensures that after the splicing is completed, while the first electric push rod moves the moving carrier plate downward, the third electric push rod simultaneously moves the adsorbed box side panel downward, realizing the synchronous downward movement of the spliced ​​U-shaped box shell and the box side panel as a whole.

[0035] Furthermore, the vacuum assembly includes a vacuum pump, a suction tube, a straight tube, and a pair of spring hoses;

[0036] A vacuum pump is located at the top of the bracket, and its suction port is connected to the suction tube.

[0037] A straight tube is connected to the straw, and its two ends are respectively connected to one end of the spring hose, and the other end of the spring hose is respectively connected to the hollow seat.

[0038] Using the above scheme, the vacuum pump operates, and by utilizing the interconnection between the vacuum pump, suction tube, straight tube, spring hose, hollow seat, and suction cup, a vacuum process is achieved between the suction cup and the side panel of the box, enabling the suction cup to adhere to the side panel of the box.

[0039] Furthermore, the movable welding assembly includes a pair of linear electric guide rails, an electric push rod, a hinge seat, and a drive motor.

[0040] A pair of linear electric guide rails are located at the bottom of the platform, on the left and right sides of the through hole respectively and arranged in parallel with each other, and the electric push rod is provided at the guide rail slide.

[0041] A hinge seat is located at the push rod end of the electric push rod five, and a drive motor is provided outside the hinge seat. The drive motor drives the welding gun to rotate within the hinge seat.

[0042] Using the above scheme, after the U-shaped box shell and the side panels of the box are assembled and spliced, the entire structure is moved downward by the moving carrier plate until the horizontal splicing gap between the U-shaped box shell and the side panels of the box aligns with the side of the welding gun. At the same time, the drive motor drives the welding gun to rotate and adjust the welding angle. The linear electric guide rail 2 drives the welding gun to move horizontally and the electric push rod 5 pushes the welding gun to move, thereby realizing the welding of the horizontal splicing gap. In addition, after the horizontal splicing gap is welded, the welding gun moves horizontally to align with the side of the vertical splicing gap. With the moving carrier plate moving downward and the electric push rod 5 pushing the welding gun to move, the welding gun automatically welds the vertical splicing gap.

[0043] The welding method for the metering box body includes the following steps:

[0044] S1. Based on the length of the processed box side panel, adjust the baffle to move in the adjustment groove so that the distance between the baffles is equal to the length of the box side panel, and ensure that the baffles are symmetrically distributed front and back based on the center of the table. In addition, start the servo motor to drive the bidirectional threaded rod to rotate. Utilize the threaded connection between the forward and reverse threaded grooves and the moving frame, as well as the limiting sliding hole to limit the sliding of the moving frame, to realize the adjustment of the moving frame to move in opposite directions, driving the limiting plate to move synchronously and respectively to fit the baffle, ensuring that the baffle, the limiting plate and the push plate form an enclosed storage space. Then, the stacked box side panels are vertically stored in the two storage spaces on both sides.

[0045] S2, start the electric push rod to move the moving carrier plate through the perforation and down to the bottom, place the formed U-shaped box shell between the clamping plates on the moving carrier plate, and simultaneously start the linear electric guide rail to move the clamping plates in the directional slide groove in the same direction, so that the length between the clamping rollers on both sides is equal to the width of the U-shaped box shell, and clamp the U-shaped box shell. After clamping, start the electric push rod again to push the moving carrier plate up and ensure that the upper surface of the moving carrier plate is parallel to the upper surface of the table.

[0046] S3, activate electric push rod three to move the loading seat downwards, positioning the hollow seat at the center of the side panel of the box. Then, activate electric push rod four to move the suction cups on the hollow seat to fit against the side panels of the box stored on both sides. Next, activate the vacuum pump. Utilizing the interconnection between the vacuum pump, suction tube, straight tube, spring hose, hollow seat, and suction cups, a vacuum is created between the suction cups and the side panels of the box, allowing the suction cups to adhere to the side panels. After adhesion is complete, according to step S, activate the servo motor to drive the bidirectional threaded rod to rotate in the opposite direction, separating the limiting plate from the baffle. After separation, activate electric push rod four to move the side panels of the box adhered on both sides synchronously, allowing the side panels of the box to... Move towards the clamped U-shaped shell until the side panels of the box on both sides are spliced ​​with the U-shaped shell to seal the openings on both sides of the U-shaped shell. During the splicing process of the side panels, they come into contact with the U-shaped shell. Under the rolling clamping of the clamping rollers, the U-shaped shell adaptively moves and adjusts its position so that the side panels and the U-shaped shell are assembled as a whole in the middle of the moving carrier plate. After splicing, the servo motor is started to reset the limit plate to block and limit the stored side panels, and the electric push rod is started to push the push plate to move, pushing the stored side panels to move so that the side panels are vertically stacked and clamped between the limit plate and the push plate, which facilitates the adsorption and retrieval of the side panels next time.

[0047] S4. After the U-shaped box shell and the side panel of the box are assembled and spliced, the electric push rod one is activated to move the moving carrier plate and the whole body down until the horizontal splicing gap between the U-shaped box shell and the side panel of the box is aligned with the side of the welding gun. At the same time, the drive motor drives the welding gun to rotate and adjust the welding angle. The linear electric guide rail two drives the welding gun to move laterally and the electric push rod five pushes the welding gun to move into the welding reserved groove to realize the welding of the horizontal splicing gap. In addition, after the horizontal splicing gap is welded, the welding gun moves laterally to align with the side of the vertical splicing gap. With the moving carrier plate moving down and the electric push rod five pushing the welding gun to move, the welding gun automatically welds the vertical splicing gap.

[0048] S5. After welding is completed, start the linear electric guide rail to drive the clamping rollers to separate from the welding box, and remove the box to complete the unloading. Repeat the above steps SS to perform the next welding operation.

[0049] Compared with the prior art, the present invention provides a welding device and method for metering box bodies, which has the following beneficial effects:

[0050] 1. The metering box welding equipment and method adjusts the distance between the baffles by adjusting the components, so that the distance between them is equal to the length of the box side panels. With the help of the limiting plate and the pushing component, the stacked box side panels are stored in the enclosed space between the baffles, limiting plate and pushing component on both sides. The electric push rod drives the moving carrier plate to the bottom, so that the U-shaped box shell can be placed on the moving carrier plate. At the same time, the relative openings of the moving carrier plate face the box side panels on both sides. The clamping roller assembly clamps the U-shaped box shell in the center. After clamping, the moving carrier plate moves up to the top and is aligned with the upper surface of the table. With the help of the adjusting limiting component, the limiting plate is separated from the baffle. The displacement component and the vacuum component drive the suction cup on the hollow seat to move and adhere to the box side panels stored on both sides and attract them. At the same time, the box side panels move and splice with the openings on both sides of the U-shaped box shell, realizing the automatic splicing of the U-shaped box shell and the box side panels, avoiding splicing misalignment caused by manual assistance.

[0051] 2. The metering box body welding equipment and method, after the splicing is completed, uses an electric push rod to drive the moving carrier plate to move down, and the displacement component simultaneously drives the hollow seat to move down, so that the spliced ​​U-shaped box shell and the box body side plate move down synchronously without splicing displacement. At the same time, the moving welding component automatically welds the horizontal and vertical gaps formed by the splicing between the U-shaped box shell and the box body side plate, ensuring the welding effect and improving the welding efficiency. Attached Figure Description

[0052] Figure 1 This is a perspective view of the present invention;

[0053] Figure 2 This is a top view of the present invention;

[0054] Figure 3 This is a bottom-view perspective view of the present invention;

[0055] Figure 4 This is a partial three-dimensional view of the structure of the present invention;

[0056] Figure 5 This is a perspective view of the assembled structure of the box side panel and the U-shaped box shell of the present invention.

[0057] In the diagram: 1. Tabletop; 2. Support frame; 3. Adjustment groove; 4. Baffle; 5. Adjustment screw; 6. Adjustment nut; 7. Bracket; 8. Limiting slide hole; 9. Servo motor; 10. Bidirectional threaded rod; 11. Moving frame; 12. Limiting plate; 13. Electric push rod II; 14. Push plate; 15. Through hole; 16. Electric push rod I; 17. Moving carrier plate; 18. Directional slide groove; 19. Clamping plate; 20. Clamping roller; 21. Linear electric guide rail I; 22. Welding reserved groove; 23. Electric push rod III; 24. Loading seat; 25. Electric push rod IV; 26. Hollow seat; 27. Suction cup; 28. Vacuum pump; 29. ​​Suction tube; 30. Straight tube; 31. Spring hose; 32. Linear electric guide rail II; 33. Electric push rod V; 34. Hinge seat; 35. Drive motor; 36. Welding gun. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] Please see Figures 1 to 2 The metering box body welding equipment includes a table 1 and a support frame 2 for fixing the bottom of the table 1, as well as an adjustment component, an adjustment limit component, a material pushing component, a clamping roller component, a displacement component, a vacuuming component and a moving welding component, which are used to automatically assemble and splice the U-shaped box shell with the box side plates on both sides, and automatically weld the horizontal and vertical gaps formed by the splicing, so as to realize the automated production of the metering box body.

[0060] Specifically, the platform 1 is a rectangular flat plate structure, which serves as the installation base for the entire equipment. A through hole 15 is provided in the middle of the platform 1. The through hole 15 is a rectangular through hole located between the baffles 4 on both sides, allowing the movable carrier plate 17 to pass through. The support frame 2 is a portal frame structure, which is fixedly installed on the lower surface of the platform 1.

[0061] Two adjustment components are respectively set on the left and right opposite sides of the tabletop 1 (i.e., the left and right areas of the upper surface of the tabletop 1). Each adjustment component includes a set of adjustment grooves 3, multiple adjustment screws 5 and adjustment nuts 6. The two sets of adjustment grooves 3 are respectively set on the left and right sides of the upper surface of the tabletop 1. Each set of adjustment grooves 3 is a long strip-shaped through groove (preferably two parallel grooves) extending along the front and back direction of the tabletop 1. A pair of baffles 4 are slidably installed in each set of adjustment grooves 3. The baffles 4 are vertically set rectangular plates with sliding protrusions at their bottom that are embedded in the adjustment grooves 3. Each baffle 4 is fixed in the adjustment grooves 3 by multiple adjustment screws 5 passing through the adjustment grooves 3 and being threadedly locked in the adjustment grooves 3 with the adjustment nuts 6. The preferred number of adjustment screws 5 is two. By loosening the adjustment nuts 6, the baffles 4 can be slid along the adjustment grooves 3 to adjust the distance between the two baffles 4 in the same set to accommodate side panels of different lengths of the box. After adjustment, tightening the adjustment nuts 6 will fix the baffles.

[0062] An adjustment limit assembly is located in the middle of the platform 1 to drive four limit plates 12 to move and adjust. The four limit plates 12 respectively abut the opposite surfaces of the two side baffles 4. Specifically, the adjustment limit assembly includes a bracket 7, a limit sliding hole 8, a servo motor 9, a bidirectional threaded rod 10, and a pair of moving frames 11. The bracket 7 has an inverted U-shaped frame structure and is fixedly installed between the front and rear sides of the middle of the platform 1, located above the middle of the through hole 15. A limit sliding hole 8 is opened on the top crossbeam of the bracket 7. The limit sliding hole 8 is an elongated through hole extending in the front-rear direction. The servo motor 9 is fixedly installed at the front end of the top of the bracket 7, and its output shaft is fixedly connected to the front end of the bidirectional threaded rod 10 through a coupling. The other side of the bidirectional threaded rod 10... The end is rotatably mounted on the rear end of the bracket 7 via a bearing. The bidirectional threaded rod 10 has a forward thread groove and a reverse thread groove on its front and rear sides respectively. A pair of movable frames 11 are inverted T-shaped, with their upper ends threaded to the forward thread groove and the reverse thread groove respectively, and their lower ends extending downward through the limiting sliding hole 8. Each movable frame 11 has a limiting plate 12 fixedly connected to its left and right ends respectively, that is, each movable frame 11 has a limiting plate 12 connected to each end, for a total of four limiting plates 12. When the servo motor 9 drives the bidirectional threaded rod 10 to rotate, the two movable frames 11 move towards or away from each other under the guidance of the limiting sliding hole 8, driving the limiting plates 12 to move synchronously, so as to achieve the contact or separation of the limiting plates 12 and the baffle 4.

[0063] The pushing assembly is set on the table 1 and is used to push the box side panels stored between the baffles 4 toward the limiting plate 12. Specifically, the pushing assembly includes electric push rods 13 respectively set on the left and right sides of the table 1. Each electric push rod 13 has a push plate 14 fixedly connected to its push rod end. The two push plates 14 are respectively located between the baffles 4 on both sides (that is, within the space enclosed by the baffles 4 and the limiting plate 12). When the push rod of the electric push rod 13 extends, it pushes the push plate 14 toward the limiting plate 12, pushing the box side panels stacked between the baffles 4 toward the limiting plate 12, so that the side panels are kept vertically and neatly arranged.

[0064] Please see Figures 3 to 5 The clamping roller assembly is mounted on the movable carrier plate 17 to clamp the U-shaped box frame. The movable carrier plate 17 is a rectangular plate with a size equal to that of the through hole 15, allowing it to move up and down within the through hole 15. Welding pre-reserved grooves 22 are provided on both the left and right sides of the upper surface of the movable carrier plate 17, allowing the welding gun 36 to extend into them for welding. The movable carrier plate 17 also has multiple sets of directional sliding grooves 18 (preferably two sets, located on the front and rear sides respectively). The clamping roller assembly includes a pair of linear electric guide rails 21, a clamping plate 19, and multiple clamping rollers 20. The pair of linear electric guide rails 21 are respectively located on the front and rear sides of the upper surface of the movable carrier plate 17 based on the center of the movable carrier plate 17. (i.e., one in front and one behind), the guide rail slides are arranged opposite each other, and each guide rail slide is fixedly connected with a clamping plate 19. The clamping plate 19 is a long strip plate extending in the left and right direction. Multiple clamping rollers 20 are evenly installed on the opposite surfaces of the two clamping plates 19 along their length direction (e.g., 3-5 rollers are installed on each clamping plate 19). The clamping rollers 20 are freely rotating rollers used to roll and clamp the U-shaped box shell. Two sets of directional slides 18 are slidably connected to the two clamping plates 19 respectively, providing guidance for the movement of the clamping plates 19. When a pair of linear electric guide rails 21 run synchronously, the two clamping plates 19 move towards or away from each other, changing the distance between the clamping rollers 20 to adapt to U-shaped box shells of different widths.

[0065] Both the displacement component and the vacuuming component are mounted on the adjustment and limiting component (i.e., mounted on the bracket 7) to move the two hollow seats 26 and to adsorb the side panels of the box through the suction cup 27.

[0066] The displacement assembly includes an electric push rod 23, a loading seat 24, and a pair of electric push rods 25. The electric push rod 23 is fixedly installed at the top center of the bracket 7, with its push rod extending vertically downwards. The end of the push rod is fixedly connected to the loading seat 24. The pair of electric push rods 25 are fixedly installed on the left and right sides of the loading seat 24, respectively, with their push rods extending horizontally (the left one extends to the left, and the right one extends to the right). The end of the push rod of each electric push rod 25 is fixedly connected to a hollow seat 26. The hollow seat 26 is a plate-shaped or block-shaped structure with a hollow interior. Multiple suction cups 27 (preferably 4-6 evenly distributed) are connected to the side of the box body facing the side panel (i.e., the outer side). The suction cups 27 are rubber suction cups used to adsorb the surface of the box body side panel.

[0067] The vacuum assembly includes a vacuum pump 28, a suction tube 29, a straight tube 30, and a pair of spring hoses 31. The vacuum pump 28 is fixedly installed on the top of the bracket 7. Its suction port is connected to the suction tube 29, and the other end of the suction tube 29 is connected to the straight tube 30. Both ends of the straight tube 30 are connected to a spring hose 31. The other ends of the two spring hoses 31 are connected to the internal cavities of the hollow seats 26 on the left and right sides, respectively. When the vacuum pump 28 is started, a negative pressure is generated at the suction cup 27 through the suction tube 29, the straight tube 30, the spring hoses 31, and the hollow seats 26, causing the suction cup 27 to adhere to the side plate of the box. The spring hoses 31 are elastic and can adapt to the length changes when the electric push rod 25 pushes the hollow seats 26 to move.

[0068] A mobile welding assembly is mounted on the table 1 to move the welding gun 36 to weld the joint. Specifically, the mobile welding assembly includes a pair of linear electric guide rails 32, an electric push rod 33, a hinge seat 34, and a drive motor 35. The pair of linear electric guide rails 32 are fixedly installed on the bottom of the table 1, located on the left and right sides of the through hole 15 respectively, and are arranged relatively parallel to each other. An electric push rod 33 is fixedly connected to the guide rail slide of each linear electric guide rail 32. The push rod end of the electric push rod 33 is fixedly connected to the hinge seat 34. The hinge seat 34 is a rotatable joint structure. A drive motor 35 is fixedly installed on its front surface. The output shaft of the drive motor 35 is connected to the rotation shaft of the hinge seat 34 to drive the welding gun 36 to rotate around the horizontal axis within the hinge seat 34 to adjust the welding angle. The welding gun 36 is fixedly installed on the movable end of the hinge seat 34, and its welding nozzle faces the direction of the joint to be welded.

[0069] The electric push rod 16 is fixedly installed on the crossbeam of the support frame 2. Its push rod extends vertically upward and its end is fixedly connected to the center of the movable carrier plate 17, which is used to push the movable carrier plate 17 to move up and down in the through hole 15.

[0070] The welding method for the metering box body includes the following steps:

[0071] Step S1: First, according to the length of the side panel of the box to be processed, loosen the adjusting nut 6 and slide the baffle 4 along the adjusting groove 3 so that the distance between the two baffles 4 in the same group is equal to the length of the side panel of the box, and ensure that the baffles 4 are symmetrically distributed back and forth based on the center of the table 1. Then tighten the adjusting nut 6 to fix it, start the servo motor 9, drive the bidirectional threaded rod 10 to rotate in the forward direction, use the threaded connection between the forward and reverse threaded grooves and the moving frame 11, and the limiting sliding hole 8 to limit the sliding of the moving frame 11, so that the two moving frames 11 move towards each other, and drive the limiting plate 12 to move synchronously until they respectively fit the opposite surfaces of the two side baffles 4. At this time, the baffle 4, the limiting plate 12 and the pusher plate 14 together form two storage spaces on the left and right, and store the stacked side panels of the box (multiple side panels stacked vertically) vertically in the storage spaces on both sides.

[0072] Step S2: Activate the electric push rod 16 to push the movable carrier plate 17 through the perforation 15 and move it down to the bottom position (i.e., below the lower surface of the table 1). Place the pre-formed U-shaped box shell (U-shaped opening facing upwards) between the two clamping plates 19 on the movable carrier plate 17. Simultaneously activate a pair of linear electric guide rails 21 to drive the two clamping plates 19 to move synchronously towards each other in the directional slide 18, so that the distance between the clamping rollers 20 on both sides is equal to the width of the U-shaped box shell. The clamping rollers 20 are in contact with the front and rear outer walls of the U-shaped box shell to roll and clamp the U-shaped box shell. After clamping is completed, activate the electric push rod 16 again to push the movable carrier plate 17 upwards until the upper surface of the movable carrier plate 17 is flush with the upper surface of the table 1, so that the left and right openings of the U-shaped box shell are respectively facing the side panels of the box stored on both sides.

[0073] Step S3: Activate electric push rod 23 to push loading seat 24 down, aligning the height of hollow seat 26 with the center of the side panel of the box. Activate electric push rod 25 to push the hollow seats 26 on both sides outwards, ensuring the suction cup 27 is tightly attached to the outer surface of the box side panels. Activate vacuum pump 28 to evacuate the space between suction cup 27 and the box side panels through suction pipe 29, straight pipe 30, spring hose 31, and hollow seat 26, ensuring the suction cup 27 firmly adheres to the box side panels. After adsorption, activate servo motor 9 to rotate in the reverse direction, separating limit plate 12 from baffle 4. Then, activate electric push rod 25 to move in the reverse direction, causing the adsorbed box side panels on both sides to move synchronously towards the U-shaped box shell until the box side panels on both sides are aligned with the U-shaped box shell. The left and right openings of the U-shaped box shell are joined together to form a complete box frame. During the movement and splicing of the box side panels, when the side panels come into contact with the U-shaped box shell, the U-shaped box shell can adaptively and slightly adjust its left and right positions under the rolling support of the clamping rollers 20, so that the box side panels and the U-shaped box shell are located at the center of the moving carrier plate 17 after the overall assembly. After the splicing is completed, the servo motor 9 is started to rotate in the forward direction, so that the limiting plate 12 is reset to fit with the baffle 4, blocking and limiting the box side panels to be stored later. The electric push rod 13 is started to push the pusher plate 14 to move towards the limiting plate 12, pushing the stored box side panels to one side of the limiting plate 12, so that the remaining box side panels are clamped between the limiting plate 12 and the pusher plate 14, keeping them vertically and neatly arranged for the next adsorption and retrieval.

[0074] Step S4: After the U-shaped box shell and the side panel are assembled and spliced, start the electric push rod 16 to move the moving carrier plate 17 and the whole body down until the lateral splicing gap between the side panel and the U-shaped box shell (i.e., the gap between the lower edge of the side panel and the bottom wall of the U-shaped box shell) corresponds laterally to the welding nozzle of the welding gun 36. Drive the motor 35 to drive the welding gun 36 to rotate within the hinge seat 34 and adjust it to a suitable welding angle. A pair of linear electric guide rails 32 drive the electric push rod 33 and the welding nozzle to rotate. The welding gun 36 moves laterally in the left-right direction, while the electric push rod 33 pushes the welding gun 36 upward into the welding pre-reserved groove 22 to continuously weld the horizontal splicing gap. After the horizontal gap is welded, the welding gun 36 moves laterally to correspond to the vertical splicing gap (i.e., the gap between the front and rear edges of the side plate and the front and rear side walls of the U-shaped box shell). The moving carrier plate 17 continues to move downward, and the electric push rod 33 pushes the welding gun 36 to the vertical gap to automatically weld the vertical splicing gap.

[0075] Step S5: After welding is completed, stop welding, reset welding gun 36, start a pair of linear electric guide rails 21 to run in reverse, drive clamping plate 19 and clamping rollers 20 to separate from welding box, and the operator removes the welded metering box from moving carrier plate 17 to complete unloading. Repeat the above steps S1-S5 to carry out the next welding operation.

[0076] To achieve fully automated operation, this equipment is also equipped with a programmable logic controller (PLC) control system. This control system is electrically connected to all actuators, including servo motor 9, electric push rod 213, electric push rod 16, linear electric guide rail 11, electric push rod 33, electric push rod 45, vacuum pump 28, linear electric guide rail 22, electric push rod 53, drive motor 35, and welding power supply. Multiple position sensors (such as photoelectric switches or proximity switches) are installed on the table 1 to detect the lifting position of the moving carrier plate 17, the movement position of the limit plate 12, and the adsorption status of the suction cup 27. Based on the preset process program and sensor feedback signals, the PLC automatically executes the following control functions:

[0077] After the operator inputs parameters such as the length and width of the side panel of the box through the human-machine interface, the PLC automatically controls the sequential actions of each servo motor and electric push rod to realize a fully automatic cycle from side panel positioning, U-shaped box clamping, side panel adsorption, splicing assembly to welding and unloading, without the need for manual intervention.

[0078] The PLC automatically switches the welding current, welding speed, and welding torch angle according to the welding position (horizontal or vertical gap) to ensure consistent weld quality in different directions.

[0079] The PLC automatically records data such as welding parameters, welding time, and splicing accuracy for each workpiece, facilitating quality traceability and production management.

[0080] Summary of beneficial effects:

[0081] By adjusting the coordinated operation of the limiting components, displacement components, and vacuum components, the automatic adsorption, transfer, and splicing of the box side panels are achieved, ensuring precise docking with the U-shaped box shell. This avoids splicing misalignment caused by manual operation and improves assembly accuracy.

[0082] While clamping the U-shaped box shell, the clamping roller 20 allows the box to be slightly adjusted and moved in the left and right directions during splicing, ensuring that the side panels of the box and the U-shaped box shell are automatically aligned during the splicing process, thus improving the adaptability of splicing.

[0083] After the mobile welding assembly is assembled, it automatically performs continuous welding on the horizontal and vertical joints, eliminating the need for manual spot welding and secondary positioning, which greatly improves welding efficiency and ensures the consistency of weld quality.

[0084] Integrating functions such as side panel storage, box clamping, automatic splicing, and automatic welding into one unit, the equipment has a small footprint, a high degree of automation, and is suitable for mass production.

[0085] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0086] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metering box welding equipment, comprising a table and a support frame disposed on the table, characterized in that, Also includes: Two adjustment components are respectively located on opposite sides of the platform, and each adjustment component has a pair of baffles that can be slidably adjusted. An adjustment limiting component is located in the middle of the platform, which drives four limiting plates to move and adjust, with the four limiting plates respectively abutting the opposite surfaces of the baffles on both sides; A material pushing component, located on the platform, pushes the side panels of the box stored between the baffles toward the limiting plate; A perforation is provided in the middle of the platform, located between the two baffles on both sides, to allow the moving carrier plate to pass through; An electric push rod is positioned between the support frames to move the movable carrier plate. A clamping roller assembly is mounted on the movable carrier plate to clamp the U-shaped box frame; The displacement component and the vacuuming component are both located on the adjustment and limiting component, which drive the two hollow seats to move. Multiple suction cups are connected to the hollow seats, which work with the vacuuming component to adsorb and move the side panels of the storage box on both sides and form a splice with the box frame. A movable welding assembly is placed on the platform and moves the welding gun to weld the joint seam.

2. The metering box welding equipment according to claim 1, characterized in that: The adjustment assembly includes two sets of adjustment slots, multiple adjustment screws, and adjustment nuts; Two sets of adjustment slots are respectively located on the left and right sides of the upper surface of the platform. A pair of baffles slide in each set of adjustment slots. The baffles are locked into the adjustment slots by the multiple adjustment screws and the adjustment nuts through threaded engagement.

3. The metering box welding equipment according to claim 1, characterized in that: The adjustment and limiting assembly includes a bracket, a limiting sliding hole, a servo motor, a bidirectional threaded rod, and a pair of movable frames; A bracket is located between the front and rear sides of the middle part of the platform, above the middle part of the through hole, and has the limiting sliding hole thereon; A servo motor is located at one end of the top of the bracket, driving the bidirectional threaded rod to rotate. The bidirectional threaded rod is connected to the other end of the top of the bracket for rotation. The bidirectional threaded rod has a forward thread groove and a reverse thread groove on both sides of the center. A pair of movable frames are threadedly connected to the forward-rotating threaded groove and the reverse-rotating threaded groove respectively, and they pass through the limiting sliding hole. The two ends of each movable frame are connected to the limiting plate respectively.

4. The metering box welding equipment according to claim 1, characterized in that: The material pushing assembly includes two electric push rods respectively located on the left and right sides of the table. The push rod ends of the electric push rods are provided with push plates, and the two push plates are respectively located between the baffles on both sides.

5. The metering box welding equipment according to claim 1, characterized in that: The clamping roller assembly includes a pair of linear electric guide rails, a plurality of directional slides, clamping plates, and a plurality of clamping rollers. A pair of linear electric guide rails are respectively located on the front and rear sides of the upper surface of the mobile carrier plate based on the center of the mobile carrier plate. The guide rail slide is provided with the clamping plate, and the opposite sides of the clamping plate are respectively provided with a plurality of clamping rollers. Multiple directional slides are arranged in two groups on the movable carrier plate, and the two groups of directional slides are slidably connected to the clamping plate respectively.

6. The metering box welding equipment according to claim 1, characterized in that: The upper surface of the movable carrier plate is provided with welding grooves that extend from front to back on both the left and right sides.

7. The metering box welding equipment according to claim 3, characterized in that: The displacement assembly includes an electric push rod three, a loading seat, and a pair of electric push rods four; Electric push rod three is located at the top center of the bracket, and the loading seat is provided at the push rod end; A pair of electric push rods are respectively located on the left and right sides of the loading seat, and their push rod ends are respectively connected to the hollow seat.

8. The metering box welding equipment according to claim 3, characterized in that: The vacuum assembly includes a vacuum pump, a suction tube, a straight tube, and a pair of spring hoses; A vacuum pump is located at the top of the bracket, and its suction port is connected to the suction tube. A straight tube is connected to the straw, and its two ends are respectively connected to one end of the spring hose, and the other end of the spring hose is respectively connected to the hollow seat.

9. The metering box welding equipment according to claim 1, characterized in that: The mobile welding assembly includes a pair of linear electric guide rails, an electric push rod, a hinged seat, and a drive motor. A pair of linear electric guide rails are located at the bottom of the platform, on the left and right sides of the through hole respectively and arranged in parallel with each other, and the electric push rod is provided at the guide rail slide. A hinge seat is located at the push rod end of the electric push rod five, and a drive motor is provided outside the hinge seat. The drive motor drives the welding gun to rotate within the hinge seat.

10. A method for welding the body of a metering box, characterized in that, Includes the following steps: S1. Based on the length of the processed box side panel, adjust the baffle to move in the adjustment groove so that the distance between the baffles is equal to the length of the box side panel, and ensure that the baffles are symmetrically distributed front and back based on the center of the table. In addition, start the servo motor to drive the bidirectional threaded rod to rotate. Utilize the threaded connection between the forward and reverse threaded grooves and the moving frame, as well as the limiting sliding hole to limit the sliding of the moving frame, to realize the adjustment of the moving frame to move in opposite directions, driving the limiting plate to move synchronously and respectively to fit the baffle, ensuring that the baffle, the limiting plate and the push plate form an enclosed storage space. Then, the stacked box side panels are vertically stored in the two storage spaces on both sides. S2, start the electric push rod to move the moving carrier plate through the perforation and down to the bottom, place the formed U-shaped box shell between the clamping plates on the moving carrier plate, and simultaneously start the linear electric guide rail to move the clamping plates in the directional slide groove in the same direction, so that the length between the clamping rollers on both sides is equal to the width of the U-shaped box shell, and clamp the U-shaped box shell. After clamping, start the electric push rod again to push the moving carrier plate up and ensure that the upper surface of the moving carrier plate is parallel to the upper surface of the table. S3, activate electric push rod three to move the loading seat downwards, positioning the hollow seat at the center of the side panel of the box. Then, activate electric push rod four to move the suction cups on the hollow seat to fit against the side panels of the box stored on both sides. Next, activate the vacuum pump. Utilizing the interconnection between the vacuum pump, suction tube, straight tube, spring hose, hollow seat, and suction cups, a vacuum is created between the suction cups and the side panels of the box, allowing the suction cups to adhere to the side panels. After adhesion is complete, according to step S, activate the servo motor to drive the bidirectional threaded rod to rotate in the opposite direction, separating the limiting plate from the baffle. After separation, activate electric push rod four to move the side panels of the box adhered on both sides synchronously, allowing the side panels of the box to... Move towards the clamped U-shaped shell until the side panels of the box on both sides are spliced ​​with the U-shaped shell to seal the openings on both sides of the U-shaped shell. During the splicing process of the side panels, they come into contact with the U-shaped shell. Under the rolling clamping of the clamping rollers, the U-shaped shell adaptively moves and adjusts its position so that the side panels and the U-shaped shell are assembled as a whole in the middle of the moving carrier plate. After splicing, the servo motor is started to reset the limit plate to block and limit the stored side panels, and the electric push rod is started to push the push plate to move, pushing the stored side panels to move so that the side panels are vertically stacked and clamped between the limit plate and the push plate, which facilitates the adsorption and retrieval of the side panels next time. S4. After the U-shaped box shell and the side panel of the box are assembled and spliced, the electric push rod one is activated to move the moving carrier plate and the whole body down until the horizontal splicing gap between the U-shaped box shell and the side panel of the box is aligned with the side of the welding gun. At the same time, the drive motor drives the welding gun to rotate and adjust the welding angle. The linear electric guide rail two drives the welding gun to move laterally and the electric push rod five pushes the welding gun to move into the welding reserved groove to realize the welding of the horizontal splicing gap. In addition, after the horizontal splicing gap is welded, the welding gun moves laterally to align with the side of the vertical splicing gap. With the moving carrier plate moving down and the electric push rod five pushing the welding gun to move, the welding gun automatically welds the vertical splicing gap. S5. After welding is completed, start the linear electric guide rail to drive the clamping rollers to separate from the welding box, and remove the box to complete the unloading. Repeat the above steps SS to perform the next welding operation.

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