Power distribution cabinet body welding device

Abstract

The invention discloses a power distribution cabinet body welding device, and relates to the technical field of welding devices, the power distribution cabinet body welding device comprises a workbench and a plate part, a support frame is fixedly mounted on the left side of the top of the workbench, and a welding assembly for welding the plate part is arranged on the support frame. According to the power distribution cabinet body welding device, when a lifting base drives a welding machine to move downwards for welding, a pulley on a movable frame is matched with a trapezoidal rod, a full gear is meshed with a second toothed bar, and a half gear is triggered to be intermittently meshed with a first toothed bar, so that a friction plate moves up and down in a reciprocating mode in the welding process, and the welding position is polished in real time; according to the linkage polishing mechanism, burrs and impurities generated during welding can be removed in time when the burrs and the impurities are not completely hardened, the influence on subsequent procedures is avoided, and the flatness and smoothness of the welding surface are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a welding device for a power distribution cabinet. Background Technology

[0002] In the field of power facilities, distribution cabinets, as key equipment, undertake important functions such as distributing electrical energy and controlling circuits. The welding quality of their cabinets directly affects the structural strength, electrical performance stability, and service life of the distribution cabinets, playing a decisive role in the safe and reliable operation of the power system. Therefore, the research and development and improvement of distribution cabinet welding devices have always been the focus of industry attention. At present, the existing distribution cabinet welding devices on the market have relatively simple positioning methods during the welding process. Most devices only fix the plate parts from a limited direction, such as using simple clamps to hold the sides of the plate parts. This single-dimensional positioning method is difficult to effectively cope with the various forces generated during the welding process when facing complex welding operations. During the welding process, the plate parts are easily shaken or displaced due to factors such as welding thermal stress and mechanical vibration, which leads to deviations in the welding position, making it impossible to guarantee the accuracy of the welding position, seriously affecting the welding quality, and reducing the structural precision and stability of the distribution cabinet.

[0003] Meanwhile, existing technologies have significant shortcomings in improving welding quality. Traditional grinding methods are usually performed after welding, which has many drawbacks. Burrs and impurities generated during welding harden rapidly after welding, and it is difficult to completely remove them by post-weld grinding, resulting in poor surface smoothness and gloss. Moreover, post-weld grinding cannot detect and deal with defects such as pores and cracks generated during welding in a timely manner. These defects will seriously affect the performance of the welded joint, reduce the overall quality of the distribution cabinet, and increase safety hazards during product use. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a welding device for power distribution cabinets, which solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a power distribution cabinet welding device, comprising a workbench and plate parts, a support frame fixedly installed on the top left side of the workbench, and a welding component for welding the plate parts provided on the support frame;

[0006] The welding assembly includes a first fixed plate and a second fixed plate fixedly installed on both sides of the support frame. The first fixed plate and the second fixed plate are slidably connected to a lifting seat in the vertical direction. A welding machine for welding sheet metal parts is fixedly installed at the bottom of the lifting seat. A movable frame is slidably connected to the top of the lifting seat in the horizontal direction. A movable plate is set on the top of the movable frame. A friction plate for grinding the weld joint is fixedly installed on the side of the movable plate near the sheet metal parts.

[0007] As a further preferred embodiment of this technical solution, a connecting rod is fixedly connected to the end of the movable frame away from the plate component, and positioning rods are slidably connected to both sides of the connecting rod. A sliding seat is fixedly connected to the end of the positioning rod, and the sliding seat is slidably mounted on the first fixed plate in the vertical direction. A first damping spring sleeved on the positioning rod is provided between the sliding seat and the connecting rod.

[0008] As a further preferred embodiment of this technical solution, pulleys are provided on both sides of the movable frame, and trapezoidal rods are fixedly installed on both sides of the first fixed plate near the plate component. The top of the trapezoidal rods is inclined, and the surface of the pulleys slides in contact with the surface of the trapezoidal rods.

[0009] As a further preferred embodiment of this technical solution, a servo motor is fixedly installed on the top of the support frame, and a lead screw is fixedly connected to the output end of the servo motor, with the lifting seat threadedly connected to the lead screw.

[0010] As a further preferred embodiment of this technical solution, the top of the movable frame is rotatably connected to a rotating rod, and full gears are fixedly installed on both sides of the rotating rod. A second toothed rod fixedly installed on a second fixed plate is meshed with one side of the full gear. A half gear is fixedly connected at the center of the rotating rod, and a first toothed rod fixedly installed on the movable plate is meshed with one side of the half gear. Fixed rods are fixedly installed on both sides of the surface of the movable frame, and the movable plate is slidably installed on the fixed rods. A second damping spring sleeved on the fixed rods is provided between the movable plate and the movable frame.

[0011] As a further preferred embodiment of this technical solution, a second cylinder is fixedly installed on both sides of the second fixed plate, and a movable frame is fixedly connected to the output end of the second cylinder. The movable frame is slidably installed on the second fixed plate in the vertical direction. A pressure plate is fixedly installed on the other end of the movable frame. The pressure plate is located directly above the top of one corner of the plate part, and a pressure plate is fixedly installed at the bottom of the pressure plate. The pressure plate is in contact with the inner wall of one corner of the plate part.

[0012] As a further preferred embodiment of this technical solution, two rectangular blocks are fixedly installed on the top of the pressure plate, and the two rectangular blocks are perpendicular to the axis of the pressure plate. A rectangular groove is opened on the surface of the rectangular block, and a second slide rod is fixedly installed inside the rectangular groove. A slider is slidably connected to the second slide rod, and the slider is slidably installed in the rectangular groove. A third damping spring is provided inside the slider and sleeved on the second slide rod. A limit roller is provided at the bottom of the slider, and the limit roller is located outside the contact block. A protruding rod is provided at the top of the slider. An adjusting motor is fixedly installed at the axis of the top of the pressure plate. A rotating frame is fixedly connected to the output end of the adjusting motor. Two arc-shaped blocks are fixedly connected to the inner wall of the rotating frame, and the inner wall of the arc-shaped blocks slides in contact with the protruding rod.

[0013] As a further preferred embodiment of this technical solution, a disc and a rotating disk are rotatably connected on the worktable. A rectangular groove is opened on the surface of the disc, and a rectangular platform is set at the rectangular groove. A placement groove is set between the rectangular platform and the placement groove, and the specifications of the placement groove are compatible with those of the sheet metal part. A first sliding rod is slidably installed on the rotating disk around the bottom of the rectangular platform. A first cylinder is fixedly installed at the top axis of the rotating disk, and the output end of the first cylinder is fixedly connected to the rectangular platform. A rotating motor is fixedly installed on the worktable, and the output end of the rotating motor is fixedly connected to the rotating disk.

[0014] Compared with existing technologies, it has the following advantages:

[0015] Process integration reduces changeover time

[0016] In traditional power distribution cabinet production, welding and grinding are usually carried out as two separate processes. After welding is completed, the cabinet needs to be transferred to the grinding station, which involves workpiece handling, equipment adjustment and other operations, which consumes a lot of time and manpower. This device innovatively integrates welding and grinding functions into one, eliminating the need to frequently transfer workpieces between different processes, greatly shortening the production cycle and significantly improving overall production efficiency.

[0017] Precise positioning ensures welding accuracy

[0018] Multi-dimensional positioning structure: The device adopts a unique positioning structure. The second cylinder drives the moving frame, pressure plate, bonding block and limiting roller to move synchronously to achieve clamping and positioning of the inner and outer walls of the sheet metal part. At the same time, the pressure plate presses down and the rectangular stage clamps the upper and lower ends of the sheet metal part. This multi-dimensional positioning method can accurately fix the sheet metal part from multiple directions, effectively avoiding welding deviations caused by shaking and displacement of the sheet metal part during the welding process, and ensuring accurate welding position.

[0019] Adjustable positioning function: The adjustable motor drives the rotating frame and arc block to rotate, pushing the convex rod, slider and limit roller to move to one side of the plate part. It can be flexibly adjusted according to the size of different specifications of plate parts to ensure the accuracy and stability of positioning. Whether it is a small distribution cabinet or a large cabinet, it can achieve precise positioning, laying the foundation for high-quality welding.

[0020] Real-time grinding improves welding quality

[0021] Linked grinding mechanism: While the lifting seat moves the welding machine downwards for welding, the pulleys on the movable frame cooperate with the trapezoidal rod, and the meshing of the full gear and the second rack triggers the intermittent meshing of the half gear and the first rack, causing the friction plate to move up and down reciprocally during the welding process, grinding the weld in real time. This linked grinding mechanism can remove burrs and impurities generated during welding in time before they are fully hardened, avoiding the impact on subsequent processes and effectively improving the flatness and smoothness of the welded surface.

[0022] Comprehensive and meticulous polishing effect: Under the action of the second damping spring, the friction plate can maintain close contact with the weld joint. As the welding machine moves, the weld joint is thoroughly and meticulously polished. Compared with the traditional post-processing polishing method, real-time polishing can better ensure the welding quality, reduce the generation of welding defects such as porosity and cracks, and improve the overall quality of the product.

[0023] Precise positioning ensures initial welding accuracy: The disc on the workbench has a specific rectangular groove, and the rectangular platform on it has a placement slot that perfectly matches the specifications of the sheet metal parts. This precise fitting design allows the sheet metal parts to be inserted into the placement slot without any deviation. In the welding of the sheet metal parts of the distribution cabinet, the initial positioning of the sheet metal is crucial. Even a slight deviation may lead to problems such as misalignment and uneven gaps in subsequent welding, affecting the overall structural strength and sealing of the cabinet. This placement slot provides a precise positioning reference for the sheet metal parts from the bottom, ensuring that the sheet metal parts are accurately positioned in the horizontal direction, laying a solid foundation for subsequent welding operations.

[0024] Stable support to prevent displacement: When the sheet metal parts are fitted into the placement slot, the rectangular platform provides stable support for the bottom of the sheet metal parts. During the welding process, the sheet metal parts are subjected to various external forces, such as the electromagnetic force generated by the welding current and the impact force of the welding rod or welding wire. Without stable support, the sheet metal parts are easily displaced or shaken under the action of these external forces, resulting in a decrease in welding quality. The stable support of the rectangular platform effectively avoids this situation, ensuring that the sheet metal parts maintain a stable position in subsequent operations and guaranteeing the initial accuracy of welding. Attached Figure Description

[0025] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional structural diagram of the workbench in this invention;

[0027] Figure 3 This is a schematic diagram of the support frame and welding assembly in this invention;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic diagram of the structure of the four-component sensor, welding machine, and movable frame in this invention;

[0030] Figure 6 This is a schematic diagram of the structure of the second fixed plate, lifting seat, movable frame, and moving frame in this invention;

[0031] Figure 7 This is a schematic diagram of the structure of the movable frame, movable plate, and friction plate in this invention;

[0032] Figure 8 This is a schematic diagram of the structure of the pressure plate, bonding block, and limiting roller in this invention;

[0033] Figure 9 This is a schematic diagram of the structure of the pressure plate, bonding block, limiting roller and sheet metal parts in this invention.

[0034] In the diagram: 1. Workbench; 2. Sheet metal part; 3. Support frame; 4. Welding assembly; 11. Disc; 12. Rectangular platform; 13. Placement slot; 14. First slide bar; 15. Rotary disc; 16. First cylinder; 17. Rotary motor; 41. Servo motor; 42. Lead screw; 43. First fixed plate; 44. Second fixed plate; 45. Lifting seat; 46. Welding machine; 47. Movable frame; 48. Sliding seat; 49. Positioning rod; 410. Connecting rod; 411. First damping spring; 412. Pulley; 413. Trapezoidal rod; 41 4. Rotating rod; 415. Full gear; 416. Half gear; 417. Fixed rod; 418. Movable plate; 419. Friction plate; 420. Second damping spring; 421. First rack; 422. Second cylinder; 423. Moving frame; 424. Pressure plate; 425. Adhesive block; 426. Rectangular block; 427. Second slide rod; 428. Slider; 429. Third damping spring; 430. Limiting roller; 431. Protruding rod; 432. Adjusting motor; 433. Rotating frame; 434. Arc block; 435. Second rack. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] Example 1: Combining Figures 1-9 As shown, the present invention provides a technical solution: a power distribution cabinet welding device, including a workbench 1 and a plate component 2. The plate component 2 is precisely welded into a power distribution cabinet that meets the design requirements. The workbench 1 serves as a load-bearing platform for the entire welding process. A support frame 3 is stably fixedly installed on the top left side of the workbench 1. The support frame 3 provides solid support for the installation and operation of the subsequent welding components 4. The welding components 4 for welding the plate component 2 are carefully set on the support frame 3. This component is the key to realizing the welding function of the entire device.

[0037] The welding assembly 4 includes a first fixing plate 43 and a second fixing plate 44 fixedly installed on both sides of the support frame 3. The first fixing plate 43 and the second fixing plate 44 provide a stable reference for the installation of other components. A lifting seat 45 is slidably connected between the first fixing plate 43 and the second fixing plate 44 in the vertical direction. The lifting seat 45 can move freely in the vertical direction along the first fixing plate 43 and the second fixing plate 44. A welding machine 46 for welding the plate parts 2 is fixedly installed at the bottom of the lifting seat 45. The welding machine 46 is the core equipment for performing welding operations and can accurately weld the plate parts 2 together.

[0038] A servo motor 41 is fixedly installed on the top of the support frame 3. The servo motor 41 serves as the power source for the lifting seat 45. Its output end is fixedly connected to a lead screw 42, and the lifting seat 45 is threadedly connected to the lead screw 42. When the servo motor 41 is turned on, it will cause the lead screw 42 to rotate synchronously. Due to the threaded connection between the lead screw 42 and the lifting seat 45, the rotation of the lead screw 42 will be converted into the up and down movement of the lifting seat 45, thereby achieving precise control of the height of the welding machine 46 to meet the welding requirements of the plate parts 2 in different positions and welding needs.

[0039] A movable frame 47 is slidably connected to the top of the lifting seat 45. The movable frame 47 can move horizontally on the lifting seat 45, providing flexible movement space for subsequent grinding operations. A movable plate 418 is provided on the top of the movable frame 47. The movable plate 418 is the carrier for installing the friction plate 419. The friction plate 419 for grinding the weld is fixedly installed on the side of the movable plate 418 near the plate part 2. The function of the friction plate 419 is to grind the weld in time during the welding process, remove burrs and impurities generated by welding, and improve the welding quality.

[0040] A connecting rod 410 is fixedly connected to the end of the movable frame 47 away from the plate component 2. Positioning rods 49 are slidably connected to both sides of the connecting rod 410. A sliding seat 48 is fixedly connected to the end of the positioning rod 49. The sliding seat 48 is slidably mounted on the first fixed plate 43 in the vertical direction. A first damping spring 411 is provided between the sliding seat 48 and the connecting rod 410 and is sleeved on the positioning rod 49. The first damping spring 411 has a certain elastic force. Under the elastic force of the first damping spring 411, the connecting rod 410 will be pushed to move on the positioning rod 49 away from the plate component 2, so that the connecting rod 410 drives the movable frame 47 and the pulley 412 to move away from the plate component 2.

[0041] The movable frame 47 is provided with pulleys 412 on both sides. The first fixed plate 43 is fixedly installed with trapezoidal rods 413 on both sides near the end of the plate part 2. The top of the trapezoidal rods 413 is inclined, and the surface of the pulleys 412 slides in contact with the surface of the trapezoidal rods 413. This design allows the pulleys 412 to move along the surface of the trapezoidal rods 413 when the lifting seat 45 moves the movable frame 47 downward in sync. When the pulleys 412 move from the inclined surface of the trapezoidal rods 413 to the vertical surface, the full gear 415 will form a corresponding meshing relationship with the second gear 435. This is the key trigger point for realizing the subsequent grinding operation.

[0042] A rotating rod 414 is rotatably connected to the top of the movable frame 47. Full gears 415 are fixedly installed on both sides of the rotating rod 414, and a second toothed rod 435 fixedly installed on the second fixed plate 44 is meshed with one side of the full gear 415. When the lifting seat 45 drives the movable frame 47 to continue to move downward, and the full gear 415 and the second toothed rod 435 form a meshing relationship, the full gear 415 will rotate under the action of the second toothed rod 435. Since the full gear 415 is fixedly connected to the rotating rod 414, the rotation of the full gear 415 will drive the rotating rod 414 to rotate synchronously.

[0043] A half-gear 416 is fixedly connected to the center of the rotating rod 414. A first toothed rod 421, fixedly mounted on the movable plate 418, is meshed with one side of the half-gear 416. Fixed rods 417 are fixedly mounted on both sides of the surface of the movable frame 47, and the movable plate 418 is slidably mounted on the fixed rods 417. A second damping spring 420, sleeved on the fixed rods 417, is provided between the movable plate 418 and the movable frame 47. When the half-gear 416 rotates to mesh with the first toothed rod 421, the rotation of the half-gear 416 will drive the first toothed rod 421 to move downward. This causes the movable plate 418 and friction plate 419 to move downwards and compress the second damping spring 420. When the half gear 416 rotates to the point where it is no longer engaged with the first toothed rod 421, under the elastic force of the second damping spring 420, the movable plate 418, friction plate 419, and first toothed rod 421 can move upwards to reset. This process repeats, allowing the friction plate 419 to move up and down repeatedly as the welding machine 46 moves downwards during the continuous welding process. This enables a comprehensive and meticulous grinding process on the welded joint of the plate part 2, effectively improving the welding quality.

[0044] During the welding process, precise positioning of the plate component 2 is a key step to ensure welding quality. The second cylinder 422 is fixedly installed on both sides of the second fixed plate 44. The second cylinder 422 serves as the power source for the positioning structure, and its output end is fixedly connected to the movable frame 423. The movable frame 423 is slidably installed on the second fixed plate 44 in the vertical direction. This design ensures that the movable frame 423 can move stably in the vertical direction under the drive of the second cylinder 422.

[0045] A pressure plate 424 is fixedly installed at the other end of the movable frame 423, and the pressure plate 424 is located directly above the top of one corner of the plate part 2. A bonding block 425 is fixedly installed at the bottom of the pressure plate 424, and the bonding block 425 is bonded to the inner wall of one corner of the plate part 2. This design can position the plate part 2 from the inside. Two rectangular blocks 426 are fixedly installed at the top of the pressure plate 424, and the two rectangular blocks 426 are set vertically with the axis of the pressure plate 424. A rectangular groove is opened on the surface of the rectangular block 426, and a second slide rod 427 is fixedly installed inside the rectangular groove. A slider 428 is slidably connected to the second slide rod 427, and the slider 428 is slidably installed in the rectangular groove. A third damping spring 429 is provided inside the slider 428 and sleeved on the second slide rod 427. The third damping spring 429 provides elastic restoring force for the movement of the slider 428.

[0046] A limiting roller 430 is provided at the bottom of the slider 428, and the limiting roller 430 is located on the outside of the contact block 425. A protruding rod 431 is provided at the top of the slider 428. An adjusting motor 432 is fixedly installed at the top axis of the pressure plate 424. A rotating frame 433 is fixedly connected to the output end of the adjusting motor 432. Two arc-shaped blocks 434 are fixedly connected to the inner wall of the rotating frame 433, and the inner wall of the arc-shaped blocks 434 slides in contact with the protruding rod 431.

[0047] In the specific implementation of this invention, by activating the second cylinder 422, the moving frame 423, pressure plate 424, bonding block 425, and limiting roller 430 are moved downwards synchronously, thereby moving the bonding block 425 to the inner side of the top corner of the plate part 2, and simultaneously moving the pressure plate 424 to the top corner of the plate part 2, so that the bottom of the pressure plate 424 is in contact with the bottom of the plate part 2. Then, the second cylinder 422 is closed. Next, by activating the adjusting motor 432, the rotating frame 433 and arc block 434 are rotated synchronously. When the arc block 434 rotates, it can push the protruding rod 431. The slider 428 and the limiting roller 430 move to one side of the plate part 2 and compress the third damping spring 429, so that the limiting roller 430 is in contact with the outer wall of the plate part 2. Then the adjusting motor 432 is turned off. In this way, the inner and outer walls of the plate part 2 can be clamped and positioned by the bonding block 425 and the limiting roller 430. At the same time, the pressure plate 424 is pressed down, so that the pressure plate 424 and the rectangular stage 12 clamp and position the upper and lower ends of the plate part 2, thereby providing a stable and accurate positioning guarantee for subsequent welding processing, ensuring that the welding process can proceed smoothly and improving the accuracy and quality of welding. The second cylinder 422 and the regulating motor 432 drive the relevant components to achieve precise positioning of the sheet metal part 2, ensuring that the sheet metal part 2 remains stable during the welding process. Then, the servo motor 41 is turned on, which drives the lifting seat 45 downward through the lead screw 42, thereby bringing the welding machine 46 close to the sheet metal part 2 for welding operations. During the descent of the lifting seat 45, the engagement of the pulley 412 and the trapezoidal rod 413 on the movable frame 47, as well as the meshing of the full gear 415 and the second rack 435, triggers the intermittent meshing of the half gear 416 and the first rack 421, causing the friction plate 419 to... During the welding process, the device can move up and down repeatedly to perform real-time grinding on the weld joint. This integrated design has many significant advantages. On the one hand, integrating welding and grinding functions into one device reduces process changeover time and improves production efficiency. On the other hand, the precise positioning structure and automated grinding function effectively ensure welding quality, reduce the probability of welding defects, and improve the overall quality of the product. In addition, the device is compact, easy to operate, and easy to automate, meeting the demands of modern industrial production for efficient and high-quality welding.

[0048] Example 2: Combination Figure 2As shown, based on Embodiment 1, a disc 11 and a rotating disk 15 are mounted on the workbench 1 via a rotating connection structure. This rotating connection ensures that the two can rotate flexibly and stably relative to the workbench 1. The surface of the disc 11 is carefully designed with a receiving groove of a specific size and shape. This receiving groove provides precise positioning and space for the subsequent installation of key components. A rectangular platform 12 is cleverly set in the receiving groove of the disc 11. There is a close relationship between the rectangular platform 12 and the placement groove 13. The placement groove 13 is specially set here, and the specifications of the placement groove 13 are completely compatible with the plate part 2. This compatibility design allows the plate part 2 to be accurately embedded in the placement groove 13 when placed, providing a reliable guarantee for subsequent positioning and welding operations. The bottom of the rectangular platform 12 is evenly distributed with first sliding rods 14 that are slidably mounted on the rotating disk 15. These first sliding rods 14 not only support the rectangular platform 12, but also ensure that the rectangular platform 12 can slide smoothly and steadily on the rotating disk 15, thereby realizing the function of vertical movement.

[0049] A first cylinder 16 is fixedly installed at the top axis of the rotating disk 15. The first cylinder 16 serves as one of the power sources, and its output end is firmly connected to the rectangular platform 12. Through the extension and retraction of the first cylinder 16, the vertical movement distance and speed of the rectangular platform 12 can be precisely controlled. A rotary motor 17 is also fixedly installed on the worktable 1. The output end of the rotary motor 17 is tightly connected to the rotating disk 15. The rotary motor 17 provides power to the entire rotating system and can drive the rotating disk 15 to rotate at a predetermined angle.

[0050] In the specific implementation of the present invention, the installation and positioning operation of the plate component 2 is first carried out. The operator carefully engages the bottom end of the plate component 2 into the placement groove 13. At this time, the rectangular platform 12 can provide a stable support for the bottom of the plate component 2. The unique design of the placement groove 13 enables the bottom of the plate component 2 to be accurately engaged in it, achieving reliable positioning and ensuring that the plate component 2 will not shift or shake during subsequent operations.

[0051] When welding is required on the sheet metal part 2, the critical clamping stage begins. The pressure plate 424 is controlled to move downward under the action of a preset drive mechanism, precisely bringing the pressure plate 424 into contact with the top of the sheet metal part 2. Subsequently, the first cylinder 16 is activated, and the output end of the first cylinder 16 extends upward, driving the rectangular platform 12 to move upward. At the same time, through a carefully designed linkage control mechanism, the pressure plate 424 is controlled to move upward synchronously with the rectangular platform 12. During this process, the rectangular platform 12 continuously pushes the sheet metal part 2 upward, so that the top of the sheet metal part 2 gradually comes into contact with the bottom of the pressure plate 424. When the appropriate position is reached, the bottom of the sheet metal part 2 is exactly at the top horizontal plane of the disc 11. At this time, the rectangular platform 12 and the pressure plate 424 form a stable clamp on the sheet metal part 2 from both the top and bottom directions. This clamping method not only ensures that the sheet metal part 2 remains absolutely stable during the welding process, but also provides ideal conditions for the welding operation, effectively avoiding welding dead angles in the vertical direction and ensuring welding quality.

[0052] After one corner of the plate component 2 is welded, the welding position needs to be switched. First, control the pressure plate 424 to move downwards, temporarily separating it from the top of the plate component 2. Then, activate the first cylinder 16, causing its output end to retract downwards, driving the plate component 2 downwards until the bottom of the plate component 2 re-enters the placement slot 13. At this point, control the pressure plate 424 to move upwards to a position where it does not contact the plate component 2, preparing for the rotation operation. Then, activate the rotation motor 17, which drives the rotating disk 15 to rotate precisely 90 degrees according to a preset program. Since the rectangular platform 12 is closely connected to the plate component 2 and forms a stable connection with the rotating disk 15 through the first slide rod 14, the rotation of the rotating disk 15 will synchronously drive the rectangular platform 12 and the plate component 2 to rotate 90 degrees. In this way, the welding position is switched, allowing the other corner of the plate component 2 to be welded. This operation process is repeated to weld all four corners of the plate component 2 in turn, ultimately forming a complete and reliable power distribution cabinet.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for a power distribution cabinet, comprising a workbench (1) and sheet metal parts (2), characterized in that: A support frame (3) is fixedly installed on the top left side of the workbench (1), and a welding assembly (4) for welding the sheet metal parts (2) is provided on the support frame (3). The welding assembly (4) includes a first fixed plate (43) and a second fixed plate (44) fixedly installed on both sides of the support frame (3). The first fixed plate (43) and the second fixed plate (44) are slidably connected in the vertical direction to a lifting seat (45). A welding machine (46) for welding the plate part (2) is fixedly installed at the bottom of the lifting seat (45). A movable frame (47) is slidably connected in the horizontal direction at the top of the lifting seat (45). A movable plate (418) is provided at the top of the movable frame (47). A friction plate (419) for grinding the weld is fixedly installed on the side of the movable plate (418) near the plate part (2).

2. The distribution cabinet welding device according to claim 1, characterized in that: A connecting rod (410) is fixedly connected to the end of the movable frame (47) away from the plate component (2). A positioning rod (49) is slidably connected to both sides of the connecting rod (410). A sliding seat (48) is fixedly connected to the end of the positioning rod (49). The sliding seat (48) is slidably installed on the first fixed plate (43) in the vertical direction. A first damping spring (411) is provided between the sliding seat (48) and the connecting rod (410) and sleeved on the positioning rod (49).

3. The distribution cabinet welding device according to claim 2, characterized in that: The movable frame (47) is provided with pulleys (412) on both sides. The first fixed plate (43) is fixedly installed with trapezoidal rods (413) on both sides near the plate component (2). The top of the trapezoidal rods (413) is inclined, and the surface of the pulleys (412) slides in contact with the surface of the trapezoidal rods (413).

4. The distribution cabinet welding device according to claim 3, characterized in that: A servo motor (41) is fixedly installed on the top of the support frame (3). A lead screw (42) is fixedly connected to the output end of the servo motor (41), and the lifting seat (45) is threadedly connected to the lead screw (42).

5. The distribution cabinet welding device according to claim 4, characterized in that: The top of the movable frame (47) is rotatably connected to the rotating rod (414). A full gear (415) is fixedly installed on both sides of the rotating rod (414), and a second toothed rod (435) fixedly installed on the second fixed plate (44) is meshed on one side of the full gear (415). A half gear (416) is fixedly connected at the center of the rotating rod (414), and a first toothed rod (421) fixedly installed on the movable plate (418) is meshed on one side of the half gear (416). A fixed rod (417) is fixedly installed on both sides of the surface of the movable frame (47), and the movable plate (418) is slidably installed on the fixed rod (417). A second damping spring (420) sleeved on the fixed rod (417) is provided between the movable plate (418) and the movable frame (47).

6. The distribution cabinet welding device according to claim 5, characterized in that: The second fixed plate (44) has a second cylinder (422) fixedly installed on both sides. The output end of the second cylinder (422) is fixedly connected to a movable frame (423), and the movable frame (423) is slidably installed on the second fixed plate (44) in the vertical direction. The other end of the movable frame (423) is fixedly installed with a pressure plate (424), and the pressure plate (424) is located directly above the top of one corner of the plate part (2). The bottom of the pressure plate (424) is fixedly installed with a pressure plate (424), and the pressure plate (424) is in contact with the inner wall of one corner of the plate part (2).

7. The distribution cabinet welding device according to claim 6, characterized in that: Two rectangular blocks (426) are fixedly installed on the top of the pressure plate (424), and the two rectangular blocks (426) are set perpendicularly to the axis of the pressure plate (424). A rectangular groove is opened on the surface of the rectangular block (426), and a second slide rod (427) is fixedly installed inside the rectangular groove. A slider (428) is slidably connected to the second slide rod (427), and the slider (428) is slidably installed in the rectangular groove. A third damping spring (429) is sleeved on the second slide rod (427) inside the slider (428). The bottom of the slider (428) is provided with a limiting roller (430), and the limiting roller (430) is located on the outside of the bonding block (425). The top of the slider (428) is provided with a protruding rod (431). An adjusting motor (432) is fixedly installed at the top axis of the pressure plate (424). The output end of the adjusting motor (432) is fixedly connected to a rotating frame (433). Two arc-shaped blocks (434) are fixedly connected to the inner wall of the rotating frame (433), and the inner wall of the arc-shaped block (434) slides in contact with the protruding rod (431).

8. The distribution cabinet welding device according to claim 7, characterized in that: A disc (11) and a rotating disk (15) are rotatably connected on the workbench (1). A rectangular groove is provided on the surface of the disc (11), and a rectangular platform (12) is provided in the rectangular groove. A placement groove (13) is provided between the rectangular platform (12) and the placement groove (13), and the specifications of the placement groove (13) are compatible with those of the plate part (2). A first sliding rod (14) is provided around the bottom of the rectangular platform (12) and is slidably installed on the rotating disk (15). A first cylinder (16) is fixedly installed at the top axis of the rotating disk (15). The output end of the first cylinder (16) is fixedly connected to the rectangular platform (12). A rotating motor (17) is fixedly installed on the workbench (1), and the output end of the rotating motor (17) is fixedly connected to the rotating disk (15).

Images