A welding equipment for explosion-proof control boxes

Abstract

This invention relates to the field of box welding technology, specifically an explosion-proof control box welding equipment, including a base and a robotic arm, wire feeding module, clamping module, and wire cleaning and cutting module mounted on the base. The robotic arm has a support plate, on which a fixed pipe is fixedly mounted. Each end of the fixed pipe has a positioning mechanism for clamping the welding wire. A bidirectional lead screw is rotatably mounted on one side of the support plate, and two symmetrically arranged movable blocks threaded to the bidirectional lead screw are mounted on it. Clamping force is provided by a cylindrical spring, and the compression of the cylindrical spring automatically matches the thickness of the welding wire. This avoids the problem of mismatch between the thickness of the welding wire and the clamping force, preventing thinner welding wires from developing indentations, scratches, or even plastic deformation due to excessive clamping force, and preventing thicker welding wires from slipping or experiencing fluctuations in wire feeding speed due to insufficient clamping force, thus ensuring welding effect and final product quality.

Description

Technical Field

[0001] This invention relates to the field of enclosure welding technology, specifically to an explosion-proof control enclosure welding device. Background Technology

[0002] In the manufacturing process of explosion-proof control boxes, welding is a critical step, and its quality directly affects the safety performance and sealing reliability of the box in flammable and explosive environments. Explosion-proof control boxes are typically constructed by welding high-strength steel plates, and the welds must meet stringent requirements for mechanical strength and airtightness, which places extremely high demands on the stability of the welding process.

[0003] To ensure welding continuity, welding equipment is generally equipped with a wire feeding mechanism to automatically replenish the welding wire. A common structure is a roller-type wire feeder: the welding wire is held by two rollers with V-shaped or U-shaped grooves. Driven by a servo motor, the two rollers rotate synchronously in opposite directions, relying on friction to continuously feed the welding wire to the end of the welding torch. This structure is simple and reliable and has become the mainstream configuration in the industry.

[0004] However, variations in welding wire specifications are common in actual production. For different plate thicknesses or welding positions, welding wires ranging from φ0.8mm to φ2.0mm need to be used, with diameter spans exceeding two times. Existing wire feeding mechanisms mostly use fixed spring loading or manual adjustment based on operator experience to control the clamping force, lacking an adaptive adjustment mechanism for the welding wire diameter. When thinner welding wires are subjected to excessive clamping force, it can cause indentations, scratches, or even plastic deformation on the wire surface, not only contaminating the weld metal and increasing the risk of porosity defects, but also causing abnormal wear of the contact tip and poor wire feeding due to cross-sectional distortion. Conversely, if thicker welding wires are not clamped forcefully, slippage and fluctuations in wire feeding speed can easily occur, resulting in unstable arcs and uneven weld formation. Under the high-standard weld requirements of explosion-proof enclosures, such defects may lead to insufficient density, leaving safety hazards. Summary of the Invention

[0005] The purpose of this invention is to provide an explosion-proof control box welding device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A welding equipment for explosion-proof control box includes a base and a robotic arm, a wire feeding module, a clamping module and a wire cleaning and cutting module mounted on the base. The robotic arm is equipped with a support plate, on which a fixed pipe is fixedly mounted. At each end of the fixed pipe is a positioning mechanism for clamping the welding wire. A bidirectional lead screw is rotatably mounted on one side of the support plate, and two moving blocks that are threadedly connected to the bidirectional lead screw are symmetrically mounted on the bidirectional lead screw. Among them, the two moving blocks are respectively connected to two sets of positioning mechanisms, the wire feeding module is provided on the support plate with two sets, and is respectively connected to the two moving blocks. The wire feeding module includes two wire feeding rollers movably set on the support plate, and the two wire feeding rollers are connected to the assembly mechanism set on the support plate. The clamping module is used to clamp and fix the explosion-proof enclosure and can drive the explosion-proof enclosure to perform rotation. A wire feeding wheel for winding welding wire is rotatably installed on the base. The welding wire on the wire feeding wheel passes between two wire feeding rollers and passes through the guide mechanism on the support plate into the welding gun on the robotic arm.

[0007] The explosion-proof control box welding equipment described above: the assembly mechanism includes an assembly base fixed to the support plate and hollow inside, and a guide column fixed in the assembly base. The guide column is connected to two wire feeding rollers respectively through two sets of elastic elements.

[0008] The explosion-proof control box welding equipment described above: the elastic element includes a cylindrical spring sleeved on the outer periphery of the guide post and a first slider and a second slider slidably disposed in the assembly seat and slidably connected to the guide post, wherein the two ends of the cylindrical spring are respectively connected to the first slider and the second slider; The first slider and the moving block are provided with a sliding fit structure, the second slider is connected to a drive component located on the side of the mounting base, the wire feeding roller is rotatably mounted on the second slider, and the drive component is used to drive the two wire feeding rollers to rotate synchronously and in opposite directions.

[0009] The explosion-proof control box welding equipment as described above: the drive assembly includes a rotating shaft rotatably mounted on the side of the mounting base and two sleeves rotatably mounted on the sides of the two second sliders and slidably fitted with the rotating shaft. The sleeves are connected to the rotating shaft of the wire feeding roller through a transmission component. The side of the mounting base is also equipped with a drive motor whose output end is connected to the rotating shaft. Two strip-shaped protrusions are formed on the outer wall of the rotating shaft, and two strip-shaped grooves that are adapted to the strip-shaped protrusions are provided on the inner wall of the sleeve.

[0010] The explosion-proof control box welding equipment described above: the positioning mechanism includes multiple positioning columns that are slidably connected to the fixed pipe fitting, the ends of the positioning columns are provided with ball bearings, and the axial direction of the multiple positioning columns is consistent with the radial direction of the fixed pipe fitting. The positioning mechanism further includes a ring body slidably sleeved on the fixed pipe fitting. The moving block is fixed to the ring body through a first connecting arm. A connecting rod is provided between the ring body and the positioning post. The two ends of the connecting rod are respectively hinged to the ring body and the positioning post.

[0011] The explosion-proof control box welding equipment described above: the sliding fit structure includes a follower arm fixedly connected to the moving block via a second connecting arm and two drive columns fixed to the bottom of the follower arm, and a driven plate fixed to the side of the first slider; The driven plate is inclinedly provided with a through groove adapted to the drive column. The drive column passes through the through groove and is slidably connected to the driven plate. When the moving block drives the follower arm to move toward the mounting base, the drive column can cause the first slider to move away from the second slider through the through groove.

[0012] The explosion-proof control box welding equipment described above: the guiding mechanism includes a fixed seat fixedly mounted on the support plate and a guide tube fixed to the fixed seat. The guide tube is bent and one end away from the fixed seat is fixed to the inlet of the welding gun.

[0013] The explosion-proof control box welding equipment described above includes a clamping module comprising a swing arm mounted on the base and capable of swinging motion, and a clamping plate mounted on the swing arm. The clamping plate is driven by a rotating base mounted on the swing arm to rotate the explosion-proof box. The clamping plate is provided with a fastening mechanism for fixing the explosion-proof box.

[0014] The explosion-proof control box welding equipment described above: the side of the rotating base is provided with an installation chamber, an air chiller is installed in the installation chamber, and the air chiller is connected to a plurality of nozzles provided on the clamping plate through an air pipe, and the plurality of nozzles are distributed at equal intervals along the circumference.

[0015] The explosion-proof control box welding equipment described above: the cleaning gun and wire cutting module includes a cleaning gun box installed on the base, the cleaning gun box is provided with a first waste collection box and a second waste collection box, two opposing wire cutting blades are movably arranged above the second waste collection box, and two second cylinders are fixed in the cleaning gun box, the movable ends of the two second cylinders are respectively fixed to the two wire cutting blades; A first cylinder is fixed to the side of the cleaning gun box, and a lifting plate is fixed to the movable end of the first cylinder. The lifting plate is located above the first waste collection box, and a cleaning gun tube is rotatably installed on the lifting plate. The cleaning gun tube can be driven to rotate by a rotary motor installed at the bottom of the lifting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention provides a plurality of positioning pins that can move radially along the fixed pipe to position the welding wire, thereby improving the stability of the wire feeding process. The positioning action of the positioning pins on the welding wire is driven by the opposite movement of two moving blocks. During positioning, the movement of the moving blocks can synchronously adjust the distance between the first slider and the second slider, i.e., the compression of the cylindrical spring. Therefore, the compression of the cylindrical spring can automatically match the thickness of the current welding wire, which can avoid the problem of mismatch between the thickness of the welding wire and the clamping force it receives. It prevents thinner welding wires from being indented, scratched or even plastically deformed due to excessive clamping force, and prevents thicker welding wires from slipping or fluctuating in wire feeding speed due to insufficient clamping force. It meets the high standard weld requirements of explosion-proof enclosures, and ensures welding effect and final product quality. This wire positioning method, which automatically adjusts the compression of the cylindrical spring based on the movement of the positioning column, ensures that the welding wires of different thicknesses are always at the same height, keeping the wire's path constant. Compared to wire feeding wheels with multiple grooves of different sizes along the axial direction, this method avoids deviations in the height of the path caused by changes in the wire's thickness, thus preventing adverse effects on the smoothness of wire feeding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one embodiment of an explosion-proof control box welding equipment.

[0018] Figure 2 This is a schematic diagram of the wire feeding module in one embodiment of an explosion-proof control box welding equipment.

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the clamping module in one embodiment of the explosion-proof control box welding equipment.

[0021] Figure 5 This is a schematic diagram of the wire feeding module from another angle in one embodiment of the explosion-proof control box welding equipment.

[0022] Figure 6 for Figure 5 Enlarged view of the structure at point B.

[0023] Figure 7 This is a schematic diagram of the positioning mechanism in one embodiment of an explosion-proof control box welding equipment.

[0024] Figure 8 An exploded view of the assembly mechanism in one embodiment of an explosion-proof control box welding equipment.

[0025] Figure 9 for Figure 8 A structural diagram from another angle.

[0026] Figure 10 This is a schematic diagram of the structure of the cleaning gun and wire cutting module in one embodiment of the explosion-proof control box welding equipment.

[0027] Figure 11 An exploded view of the structure of the cleaning gun and wire cutting module in one embodiment of the explosion-proof control box welding equipment.

[0028] In the diagram: 1. Base; 2. Wire feeding reel; 3. Cross-shaped moving module; 4. Movable seat; 5. Robotic arm; 6. Swing arm; 7. Rotating base; 8. Air pipe; 9. Nozzle; 10. Clamping plate; 11. Welding torch; 12. First waste collection box; 13. Second waste collection box; 14. Cleaning torch box; 15. First cylinder; 16. Lifting plate; 17. Cleaning torch tube; 18. Second cylinder; 19. Wire cutter; 20. Support plate; 2001. Fixed seat; 21. Fixed fitting; 22. Ring body; 23. Positioning post; 24. Connecting... 25. Rod; 26. Double-acting lead screw; 27. Moving block; 28. First connecting arm; 29. ​​Second connecting arm; 20. Follower arm; 21. Drive column; 22. Wire feed roller; 33. Assembly seat; 34. Guide column; 35. First slider; 36. Second slider; 37. Cylindrical spring; 38. Driven plate; 39. Through slot; 40. Drive motor; 41. Rotating shaft; 32. Strip protrusion; 32. Sleeve; 33. Bevel gear set; 44. Toothed belt; 45. Drive shaft; 46. Guide tube. Detailed Implementation

[0029] 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.

[0030] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0031] Please see Figures 1-11 In this embodiment, an explosion-proof control box welding equipment includes a base 1 and a robotic arm 5, a wire feeding module, a clamping module and a wire cleaning and cutting module mounted on the base 1. The robotic arm 5 is provided with a support plate 20, and a fixed pipe fitting 21 is fixedly provided on the support plate 20. Each end of the fixed pipe fitting 21 is provided with a positioning mechanism for clamping the welding wire. A bidirectional lead screw 25 is rotatably installed on one side of the support plate 20. Two moving blocks 26 are symmetrically provided on the bidirectional lead screw 25 and threadedly connected to the bidirectional lead screw 25. Among them, the two moving blocks 26 are respectively connected to two sets of positioning mechanisms. The wire feeding module is provided on the support plate 20 in two sets, and is respectively connected to the two moving blocks 26. The wire feeding module includes two wire feeding rollers 28 movably provided on the support plate 20. The two wire feeding rollers 28 are connected to the assembly mechanism provided on the support plate 20. The clamping module is used to clamp and fix the explosion-proof box and can drive the explosion-proof box to perform rotation. A wire feeding wheel 2 for winding welding wire is rotatably installed on the base 1. The welding wire on the wire feeding wheel 2 passes between two wire feeding rollers 28 and passes through the guide mechanism on the support plate 20 and enters the welding gun 11 on the robotic arm 5.

[0032] When the wire feeding wheel 2 is installed on the base 1, multiple guide wheels (not shown in the figure) are also provided on the base 1 during actual operation. The multiple guide wheels plan the route of the welding wire so that the welding wire can pass smoothly between the two wire feeding rollers 28 and be replenished along a specific path. In another embodiment of the present invention, the wire feeding wheel 2 can be mounted on the support plate 20; It should be further explained that the robotic arm 5 is an application of existing technology, including multiple movable arms. When performing welding work, it can perform joint-like movements to control the welding torch 11 to align with the weld seam and complete the welding operation. Furthermore, a cross-shaped moving module 3 is also installed on the base 1. A movable seat 4 is movably provided on the cross-shaped moving module 3. The movable seat 4 can move along the X and Y directions on the cross-shaped moving module 3. Secondly, the base 1 is also equipped with a drive motor (not labeled in the figure) for driving the wire feeding wheel 2 to rotate. During the welding process, the drive motor drives the wire feeding wheel 2 to rotate, thereby releasing the wound welding wire. At the same time, the two wire feeding rollers 28 rotate synchronously but in opposite directions, which can transport the welding wire and realize the automatic replenishment function of welding wire during the welding process.

[0033] As a further embodiment of the present invention, please refer again. Figures 6-9The assembly mechanism includes an assembly base 29 fixed to the support plate 20 and hollow inside, and a guide post 30 fixed in the assembly base 29. The guide post 30 is connected to two wire feeding rollers 28 respectively through two sets of elastic elements. The elastic elements include a cylindrical spring 33 sleeved on the outer periphery of the guide post 30, and a first slider 31 and a second slider 32 slidably disposed in the assembly base 29 and slidably connected to the guide post 30. The two ends of the cylindrical spring 33 are respectively connected to the first slider 31 and the second slider 32. The first slider 31 and the moving block 26 are provided with a sliding fit structure. The second slider 32 is connected to a drive assembly located on the side of the mounting base 29. The wire feeding roller 28 is rotatably mounted on the second slider 32. The drive assembly is used to drive the two wire feeding rollers 28 to rotate synchronously and in opposite directions.

[0034] In this embodiment, with attachment Figure 6 Taking the state shown as an example, the cylindrical spring 33 is in a compressed state. Under the elastic support of the cylindrical spring 33, the second slider 32 can drive the wire feeding roller 28 to apply a certain clamping force to the welding wire. When the drive component is working, it will drive the two wire feeding rollers 28 to rotate synchronously and in opposite directions. Therefore, the two wire feeding rollers 28 can realize the feeding and replenishment of the welding wire.

[0035] As a further embodiment of the present invention, please refer again. Figure 6 and Figure 9 The drive assembly includes a rotating shaft 36 rotatably mounted on the side of the mounting base 29 and two sleeves 37 rotatably mounted on the sides of the two second sliders 32 and slidably fitted with the rotating shaft 36. The sleeves 37 are connected to the rotating shaft of the wire feeding roller 28 through a transmission component. The side of the mounting base 29 is also equipped with a drive motor 35 whose output end is connected to the rotating shaft 36. Two strip-shaped protrusions 3601 are formed on the outer wall of the rotating shaft 36, and two strip-shaped grooves adapted to the strip-shaped protrusions 3601 are provided on the inner wall of the sleeves 37.

[0036] In this embodiment, specifically, the transmission component includes a transmission shaft 40 rotatably mounted on the side of the second slider 32. The transmission shaft 40 is connected to the sleeve 37 via a bevel gear set 38 and also connected to the rotation shaft of the wire feeding roller 28 via a toothed belt 39. Further, the bevel gear set 38 includes a first bevel gear fixed on the sleeve 37 and a second bevel gear fixed on the transmission shaft 40, and the second bevel gear meshes with the first bevel gear. It should be emphasized that in order to achieve the effect of synchronous but opposite rotation of the two wire feeding rollers 28, the two sets of transmission components are symmetrically distributed. When feeding the welding wire, the drive motor 35 drives the rotating shaft 36 to rotate. The rotating shaft 36 can drive the sleeve 37 to rotate through the strip protrusion 3601 and the strip groove on the inner wall of the sleeve 37. Then, the sleeve 37 can drive the transmission shaft 40 to rotate through the bevel gear set 38. The transmission shaft 40 drives the wire feeding roller 28 to rotate through the toothed belt 39. The sleeve 37 ensures smooth transmission of the two wire feeding rollers 28 while allowing the wire feeding rollers 28 to move along the length of the mounting base 29. This allows the elastic support force of the cylindrical spring 33 to be effectively transmitted, and the wire feeding rollers 28 to apply clamping force to the welding wire smoothly. Compared to using two separate drive sources, the present invention achieves synchronous and non-directional rotation of the two wire feeding rollers 28 by setting the rotating shaft 36 and the sleeve 37, using only one drive motor 35. This effectively ensures the consistency of the rotation of the two wire feeding rollers 28 and avoids the problem of difficult wire feeding due to deviations in the order of movement caused by using different drive sources.

[0037] As a further embodiment of the present invention, please refer again. Figure 7 and Figure 8 The positioning mechanism includes multiple positioning pins 23 slidably connected to the fixed pipe fitting 21. The ends of the positioning pins 23 are provided with ball bearings, and the axial direction of the multiple positioning pins 23 is consistent with the radial direction of the fixed pipe fitting 21. The positioning mechanism also includes a ring body 22 slidably sleeved on the fixed pipe fitting 21. The moving block 26 is fixed to the ring body 22 through a first connecting arm 2601. A connecting rod 24 is provided between the ring body 22 and the positioning pins 23. The two ends of the connecting rod 24 are respectively hinged to the ring body 22 and the positioning pins 23.

[0038] In this embodiment, before welding begins, the welding wire on the feed roller 2 is pulled out from the feed roller 2, passing through the two feed rollers 28 and then through the fixed tube 21. Then, the bidirectional lead screw 25 is rotated, and the two moving blocks 26 simultaneously slide and move away from each other with the bidirectional lead screw 25. Furthermore, the moving blocks 26 drive the ring body 22 to slide axially along the fixed tube 21 via the first connecting arm 2601. The ring body 22 pushes the positioning post 23 radially toward the center of the fixed tube 21 via the connecting rod 24 until the ball bearing at the end of the positioning post 23 contacts the welding wire, thus achieving effective positioning of the welding wire and ensuring the stability of the welding wire feeding.

[0039] As a further embodiment of the present invention, the sliding fit structure includes a follower arm 27 fixedly connected to the moving block 26 via a second connecting arm 2602 and two drive columns 2701 fixed to the bottom of the follower arm 27. A driven plate 34 is fixed to the side of the first slider 31. The driven plate 34 is provided with an inclined through groove 3401 adapted to the drive column 2701. The drive column 2701 passes through the through groove 3401 and is slidably connected to the driven plate 34. When the moving block 26 drives the follower arm 27 to move toward the mounting base 29, the drive column 2701 can cause the first slider 31 to move away from the second slider 32 through the through groove 3401, so that the compression of the column spring 33 gradually decreases, and correspondingly, the clamping force of the wire feeding roller 28 on the welding wire decreases.

[0040] As can be seen from the above, when the two moving blocks 26 move away from each other, the positioning column 23 positions the welding wire while the clamping force of the wire feeding roller 28 on the welding wire gradually decreases. Furthermore, during the process from the start to the end of the positioning of the welding wire, if the diameter of the welding wire is smaller, then the movement stroke of the moving block 26 is larger, the movement distance of the drive column 2701 in the through groove 3401 is larger, the movement stroke of the first slider 31 away from the second slider 32 is larger, that is, the compression of the column spring 33 is smaller, and the clamping force of the wire feeding roller 28 on the welding wire is smaller. In this regard, the compression of the column spring 33 can automatically match the thickness of the current welding wire, that is, the clamping force of the wire feeding roller 28 on the welding wire can automatically adapt to the thickness of the welding wire, preventing the thinner welding wire from being indented, scratched or even plastically deformed due to excessive clamping force, and preventing the thicker welding wire from slipping and fluctuating the wire feeding speed due to insufficient clamping force.

[0041] In this embodiment, the two moving blocks 26 move away from each other, causing the positioning column 23 to slide radially toward the center of the fixed tube 21. During this process, the moving block 26 drives the follower arm 27 toward the mounting base 29 via the second connecting arm 2602. Then, the driving column 2701 slides with the driven plate 34 through the through groove 3401, causing the driven plate 34 to drive the first slider 31 to slide away from the second slider 32 in the mounting base 29. Correspondingly, the compression of the column spring 33 decreases. Therefore, this invention provides multiple positioning posts 23 that can move radially along the fixed pipe 21 to position the welding wire, improving the stability of the wire feeding process. The positioning action of the positioning posts 23 on the welding wire is driven by the opposing movement of two moving blocks 26. During positioning, the movement of the moving blocks 26 can synchronously adjust the distance between the first slider 31 and the second slider 32, i.e., the compression of the cylindrical spring 33. Therefore, the compression of the cylindrical spring 33 can automatically match the thickness of the current welding wire, avoiding the problem of mismatch between the thickness of the welding wire and the clamping force it receives. This prevents thinner welding wires from being indented, scratched, or even plastically deformed due to excessive clamping force, and prevents thicker welding wires from slipping or fluctuating in wire feeding speed due to insufficient clamping force. This meets the high standard weld requirements of the explosion-proof enclosure, ensuring the welding effect and the final product quality.

[0042] As a further embodiment of the present invention, please refer again. Figure 5 The guiding mechanism includes a fixed base 2001 fixed on the support plate 20 and a guide tube 41 fixed to the fixed base 2001. The guide tube 41 is bent and one end away from the fixed base 2001 is fixed to the inlet of the welding gun 11.

[0043] In this embodiment, it should be noted that the diameter of the guide tube 41 is slightly larger than that of the welding wire to ensure that the guide tube 41 can smoothly guide the welding wire.

[0044] As a further embodiment of the present invention, please refer again. Figure 4 The clamping module includes a swing arm 6 mounted on the base 1 and capable of swinging, and a clamping plate 10 mounted on the swing arm 6. The clamping plate 10 can be driven by a rotating base 7 mounted on the swing arm 6 to rotate the explosion-proof enclosure. The clamping plate 10 is provided with a fastening mechanism for fixing the explosion-proof enclosure.

[0045] In this embodiment, it should be noted that the fastening mechanism is an application of existing technology. The explosion-proof box can be clamped and fixed on the clamping plate 10 by driving the locking block with an electric telescopic rod. During the welding process, the swing arm 6 swings, the rotating base 7 drives the clamping plate 10 to rotate the explosion-proof box, and at the same time, the robotic arm 5 adjusts the position of the welding gun 11, so that the welding operation can be carried out smoothly.

[0046] As a further embodiment of the present invention, the side of the rotating base 7 is provided with an installation chamber, an air cooler is installed in the installation chamber, and the air cooler is connected to a plurality of nozzles 9 provided on the clamping plate 10 through an air pipe 8, and the plurality of nozzles 9 are distributed at equal intervals along the circumference.

[0047] In this embodiment, the clamping plate 10 is further provided with an air pump located on the air pipe 8. During the welding process, the pump body pumps cold air to the explosion-proof box through the air pipe 8 and the nozzle 9 to cool the welding of the explosion-proof box. This cycle is repeated so that each weld is immediately cooled by air to prevent deformation caused by large-area welding.

[0048] As a further embodiment of the present invention, please refer again. Figure 10 and Figure 11 The gun cleaning and wire cutting module includes a gun cleaning box 14 installed on the base 1. The gun cleaning box 14 is provided with a first waste collection box 12 and a second waste collection box 13. Two opposing wire cutting blades 19 are movably arranged above the second waste collection box 13. Two second cylinders 18 are fixed in the gun cleaning box 14. The movable ends of the two second cylinders 18 are respectively fixed to the two wire cutting blades 19. A first cylinder 15 is fixed to the side of the cleaning box 14. A lifting plate 16 is fixed to the movable end of the first cylinder 15. The lifting plate 16 is located above the first waste collection box 12, and a cleaning tube 17 is rotatably mounted on the lifting plate 16. The cleaning tube 17 can be driven to rotate by a rotary motor installed at the bottom of the lifting plate 16.

[0049] In this embodiment, after the explosion-proof enclosure is welded as a whole, it is manually removed from the clamping plate 10. Then, the robotic arm 5 moves, causing the welding torch 11 to move above the cleaning tube 17. The first cylinder 15 and the rotary motor are activated, and the cleaning tube 17 rotates and rises to clean the impurities at the nozzle of the welding torch 11 at the end where the welding wire comes out. The impurities fall into the first waste collection box 12. Then, the welding torch 11 moves between the two wire cutters 19, and the two second cylinders 18 are activated, driving the two wire cutters 19 to move closer to each other and cut the welding wire. The cut welding wire falls into the second waste collection box 13. Thus, for each product, the torch can be automatically cleaned and the wire cutters can be cut, ensuring the welding quality and the consistency of the product welding.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding equipment for explosion-proof control boxes, comprising a base and a robotic arm, a wire feeding module, a clamping module and a wire cleaning and cutting module mounted on the base; Its features are, The robotic arm is equipped with a support plate, on which a fixed pipe is fixedly mounted. At each end of the fixed pipe is a positioning mechanism for clamping the welding wire. A bidirectional lead screw is rotatably mounted on one side of the support plate, and two moving blocks that are threadedly connected to the bidirectional lead screw are symmetrically mounted on the bidirectional lead screw. Among them, the two moving blocks are respectively connected to two sets of positioning mechanisms, the wire feeding module is provided on the support plate with two sets, and is respectively connected to the two moving blocks. The wire feeding module includes two wire feeding rollers movably set on the support plate, and the two wire feeding rollers are connected to the assembly mechanism set on the support plate. The clamping module is used to clamp and fix the explosion-proof enclosure and can drive the explosion-proof enclosure to perform rotation. A wire feeding wheel for winding welding wire is rotatably installed on the base. The welding wire on the wire feeding wheel passes between two wire feeding rollers and passes through the guide mechanism on the support plate into the welding gun on the robotic arm. The assembly mechanism includes an assembly base fixed to a support plate and hollow inside, and a guide column fixed in the assembly base. The guide column is connected to two wire feeding rollers through two sets of elastic elements. The elastic element includes a cylindrical spring sleeved on the outer periphery of the guide post and a first slider and a second slider slidably disposed in the mounting base and slidably connected to the guide post. The two ends of the cylindrical spring are respectively connected to the first slider and the second slider. The first slider and the moving block are provided with a sliding fit structure, the second slider is connected to a drive assembly located on the side of the mounting base, the wire feeding roller is rotatably mounted on the second slider, and the drive assembly is used to drive the two wire feeding rollers to rotate synchronously and in opposite directions. The positioning mechanism includes multiple positioning pins that are slidably connected to the fixed pipe fitting. The ends of the positioning pins are provided with balls, and the axial direction of the multiple positioning pins is consistent with the radial direction of the fixed pipe fitting. The positioning mechanism also includes a ring body that is slidably sleeved on the fixed pipe fitting. The moving block is fixed to the ring body through the first connecting arm. A connecting rod is provided between the ring body and the positioning post. The two ends of the connecting rod are respectively hinged to the ring body and the positioning post. The sliding fit structure includes a follower arm that is fixedly connected to the moving block via a second connecting arm and two drive columns fixed to the bottom of the follower arm. A driven plate is fixed to the side of the first slider. The driven plate is inclinedly provided with a through groove adapted to the drive column. The drive column passes through the through groove and is slidably connected to the driven plate. When the moving block drives the follower arm to move toward the mounting seat, the drive column can cause the first slider to move away from the second slider through the through groove.

2. The explosion-proof control box welding equipment according to claim 1, characterized in that, The drive assembly includes a rotating shaft rotatably mounted on the side of the mounting base and two sleeves rotatably mounted on the sides of the two second sliders and slidably fitted with the rotating shaft. The sleeves are connected to the rotating shaft of the wire feeding roller through a transmission component. The side of the mounting base is also equipped with a drive motor whose output end is connected to the rotating shaft. Two strip-shaped protrusions are formed on the outer wall of the rotating shaft, and two strip-shaped grooves that are adapted to the strip-shaped protrusions are provided on the inner wall of the sleeve.

3. The explosion-proof control box welding equipment according to claim 1, characterized in that, The guiding mechanism includes a fixed base fixedly mounted on the support plate and a guide tube fixed to the fixed base. The guide tube is bent and one end away from the fixed base is fixed to the inlet of the welding gun.

4. The explosion-proof control box welding equipment according to claim 1, characterized in that, The clamping module includes a swing arm mounted on the base and capable of swinging motion, and a clamping plate mounted on the swing arm. The clamping plate can be driven by a rotating base mounted on the swing arm to rotate the explosion-proof enclosure. The clamping plate is provided with a fastening mechanism for fixing the explosion-proof enclosure.

5. The explosion-proof control box welding equipment according to claim 4, characterized in that, The rotating base has an installation chamber on its side, and an air cooler is installed in the installation chamber. The air cooler is connected to multiple nozzles on the clamping plate through air pipes. The multiple nozzles are distributed at equal intervals along the circumference.

6. The explosion-proof control box welding equipment according to claim 1, characterized in that, The gun cleaning and wire cutting module includes a gun cleaning box installed on the base. The gun cleaning box is provided with a first waste collection box and a second waste collection box. Two opposing wire cutting blades are movably arranged above the second waste collection box. Two second cylinders are fixed in the gun cleaning box, and the movable ends of the two second cylinders are respectively fixed to the two wire cutting blades. A first cylinder is fixed to the side of the cleaning gun box, and a lifting plate is fixed to the movable end of the first cylinder. The lifting plate is located above the first waste collection box, and a cleaning gun tube is rotatably installed on the lifting plate. The cleaning gun tube can be driven to rotate by a rotary motor installed at the bottom of the lifting plate.

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