Clamping and welding device for power distribution cabinet machining

Abstract

The invention relates to the technical field of equipment machining, and discloses a clamping and welding device for power distribution cabinet machining, the clamping and welding device comprises a machining table, an auxiliary mechanism, a driving device, an outer side clamping mechanism, a linkage mechanism and an inner side supporting mechanism, the machining table is provided with a cross-shaped groove and a rectangular groove, and the inner side supporting mechanism and the outer side clamping mechanism are contained in the cross-shaped groove and the rectangular groove correspondingly; after starting, a telescopic air cylinder of the driving device pushes the driving clamping assembly to move, and a fluted disc rack of the linkage mechanism drives the driven clamping assembly to synchronously clamp the outer side of the cabinet body. The fluted disc simultaneously drives a rotary disc of the inner side supporting mechanism to rotate, so that an inner side supporting plate and an L-shaped supporting sliding block expand along a T-shaped groove to abut against the inner wall of the cabinet body; a limiting block of the auxiliary mechanism is embedded into a sliding rail of the clamping assembly to ensure that the cabinet body is vertical; the device achieves synchronous action of outer clamping and inner supporting through a single power source, six-face fixing is formed, and welding deformation and shaking are prevented; the device is accurate in positioning, efficient in operation and capable of being matched with cabinets of different sizes, and the welding quality and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of equipment processing technology, and more specifically to a clamping and welding device for processing power distribution cabinets. Background Technology

[0002] As a core supporting equipment in the power system, the machining accuracy of the distribution cabinet shell directly affects the installation stability and power safety of electrical components, and the clamping and positioning in the welding process is the key link that determines the shell accuracy. With the development of the power industry, distribution cabinets are developing towards multiple specifications and high strength, which puts forward higher requirements for the adaptability and stability of welding clamping devices.

[0003] Existing welding clamping devices for distribution cabinets have several significant drawbacks: First, the clamping methods are limited, often employing single- or double-sided rigid clamping without adequate internal support. This makes the casing prone to warping and deformation during welding due to uneven stress, especially for thin-walled cabinets, where the deformation rate can exceed 15%, significantly increasing processing costs during subsequent correction. Second, the coordination between internal and external mechanisms is poor. The external clamping and internal support are often driven independently, requiring repeated manual adjustments and positioning. This is not only cumbersome but also prone to positioning errors, leading to misaligned joints and a welding pass rate of less than 85%. Third, the compatibility is narrow. Most devices are designed only for cabinets of fixed specifications. Changing the processing model requires disassembling and replacing the clamping components, with adjustment times reaching 1-2 hours, making it difficult to meet the needs of mass production. Fourth, the limiting structure is inadequate, causing the cabinet to tilt or slide during clamping, resulting in poor molten pool stability during welding and defects such as porosity and slag inclusions.

[0004] To address the aforementioned issues, there is an urgent need to develop a welding clamping device that can achieve synchronous internal and external clamping, precise positioning, and strong adaptability, in order to improve the processing efficiency and quality of power distribution cabinets and reduce production costs. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a clamping and welding device for processing power distribution cabinets, so as to solve the problems existing in the background art.

[0006] The present invention provides the following technical solution: a clamping and welding device for processing power distribution cabinets, including a processing table, auxiliary mechanisms are fixedly connected to the left and right sides of the upper surface of the processing table, a driving device is fixedly connected inside the processing table, an outer clamping mechanism is fixedly connected to the upper surface of the driving device, a linkage mechanism is movably connected to the upper part of the outer clamping mechanism, and an inner support mechanism is movably connected to the upper part of the linkage mechanism. Furthermore, the upper surface of the processing table is provided with a cross-shaped groove at its center, and rectangular grooves are provided on both the left and right sides of the upper surface of the processing table. The inner support mechanism is located in the cross-shaped groove, and the outer clamping mechanism is located in the rectangular groove.

[0007] Furthermore, the auxiliary mechanism consists of two symmetrically distributed L-shaped support frames. Each L-shaped support frame is fixedly connected to the upper surface of the processing table. Each L-shaped support frame has a sliding column movably connected inside. Each L-shaped support frame has a square central frame fixedly connected to it. The sliding column passes through the interior of each square central frame. Each square central frame has a first hinge at each of its four corners. Each first hinge has a connecting rod movably connected inside it. The other end of each connecting rod is movably connected to a second hinge. A limit block is fixedly connected to the bottom of each second hinge.

[0008] Furthermore, the driving device is composed of a support plate, with both sides of the support plate fixedly connected to the inside of the processing table. A square groove is provided on one side of the bottom of the support plate, and an adjusting base is fixedly connected to the other side of the bottom of the support plate. A rotating block is movably connected inside the adjusting base, and a telescopic cylinder is fixedly connected to the bottom of the rotating block. The piston rod of the telescopic cylinder is fixedly connected to a groove connecting shaft.

[0009] Furthermore, the outer clamping mechanism comprises a square base, strip bases, an active clamping assembly, and a driven clamping assembly. The bottom of the square base is fixedly connected to the center of the upper surface of the supporting plate. A rotating shaft is fixedly connected to the center of the upper surface of the square base. The strip bases are fixedly connected to the left and right sides of the upper surface of the supporting plate. Clamping supports are fixedly connected to the four corners of the upper surface of the square base. Clamping supports are fixedly connected to the front and rear sides of the upper surface of each strip base. A sliding rod is fixedly connected inside the clamping support. The sliding rod is fixedly connected to the four clamping supports on the front and rear sides. The bottom of the sliding rod is movably connected to the active clamping assembly on one side of the square sliding groove. The other side of the sliding rod is movably connected to the active clamping assembly, which is composed of a first sliding plate. The first sliding plate is movably connected to the sliding rods on the front and rear sides. A first mounting post is fixedly connected to the center of the upper surface of the first sliding plate. A first support frame is fixedly connected to the front and rear sides of the upper part of the first mounting post. A first outer clamping plate is fixedly connected to the other side of the first support frame. The lower part of the first outer clamping plate... The first longitudinal box-shaped placement block is fixedly connected to both the front and rear sides of the inner surface of the first outer clamping plate. Two horizontally distributed first limiting slide rails are fixedly connected to the bottom back of the first outer clamping plate. Two obliquely distributed first limiting slide rails are fixedly connected to the upper back of the first outer clamping plate. A cylinder mounting support is fixedly connected to the middle of the lower surface of the first slide plate. The cylinder mounting support passes through a square slide groove and is movably connected to the slide groove connecting shaft. The driven clamping assembly is composed of a second slide plate. The second slide plate is movably connected to the slide rods on the front and rear sides. A second mounting post is fixedly connected to the middle of the upper surface of the second slide plate. A second support frame is fixedly connected to both the front and rear sides of the upper part of the second mounting post. A second outer clamping block is fixedly connected to the other side of the second support frame. A second longitudinal box-shaped placement block is fixedly connected to both the front and rear sides of the inner surface of the lower surface of the second outer clamping block. Two horizontally distributed second limiting slide rails are fixedly connected to the bottom back of the second outer clamping block. Two obliquely distributed second limiting slide rails are fixedly connected to the upper back of the second outer clamping block. The limiting block is movably connected to the first limiting slide rail and the second limiting slide rail.

[0010] Furthermore, the linkage mechanism consists of a gear plate, a rack, a fixing block, and a limiting hole. The bottom of the gear plate is movably connected to a rotating shaft. Two centrally symmetrical racks are movably connected to the front and rear sides of the gear plate. A fixing block is fixedly connected to one end of each rack. A limiting hole is provided at the other end of each fixing block. Another rack passes through the limiting hole at the other end of each fixing block. The outer middle part of the fixing block is fixedly connected to the inner middle part of the first mounting post. The outer middle part of the other fixing block is fixedly connected to the inner middle part of the second mounting post.

[0011] Furthermore, the inner support mechanism is composed of a turntable, the bottom of which is fixedly connected to a gear plate. The turntable has four centrally symmetrical arc-shaped grooves inside. A cross-shaped block is movably connected to the upper part of the turntable. The cross-shaped block has T-shaped grooves both horizontally and vertically inside. Mounting sliders are movably connected to the front and rear sides of the longitudinal direction inside the T-shaped grooves. Each mounting slider has a first limiting post at its bottom, and each first limiting post is located in an arc-shaped groove. An inner support plate is fixedly connected to the upper part of each mounting slider. Two symmetrically distributed transverse box-shaped placement blocks are fixedly connected to the left and right sides of the bottom of each inner support plate. L-shaped support sliders are movably connected to the left and right sides of the transverse direction inside the T-shaped grooves. Each L-shaped support slider has a second limiting post at its bottom, and each second limiting post is located in an arc-shaped groove.

[0012] The technical effects and advantages of this invention are as follows: 1. This invention fundamentally solves the industry problem of shell shaking and deformation during welding by using a synergistic structure of "symmetrical external clamping + four-way internal support," providing core assurance for high-precision welding. Regarding external fixation, when the drive device moves the active clamping component, the driven clamping component moves synchronously towards the center through the gear and rack transmission of the linkage mechanism, forming a symmetrical clamping force and avoiding shell displacement caused by traditional single-sided clamping. Simultaneously, the longitudinal box-shaped placement block on the lower surface of the clamping plate is embedded into the bottom edge of the shell, achieving both horizontal limiting and longitudinal support to prevent the bottom of the shell from denting and deforming due to the high temperature of welding.

[0013] The inner support mechanism starts synchronously with the outer clamping mechanism. The rotation of the gear disc drives the turntable to rotate. The arc-shaped groove pushes the mounting slider and the L-shaped support slider outward along the T-shaped groove of the cross-shaped block through the limiting post. It presses against the inner wall of the shell from four directions: front, back, left, and right, forming a balanced force state of "outer clamping and inner support", effectively resisting shell warping caused by welding stress. The limiting block of the auxiliary mechanism is embedded in the slide rail of the clamping assembly. Through the cooperation of lateral and oblique guides, it ensures that the clamping plate is always perpendicular to the processing table, further ensuring the verticality of the shell sidewall and keeping the weld straightness error within a very small range.

[0014] 2. This invention achieves synchronized action of multiple mechanisms through mechanical linkage, significantly simplifying the operation process and improving processing efficiency. Traditional devices require separate control of the outer clamping and inner support mechanisms, which is cumbersome and prone to asynchronous operation. In this invention, the extension of the telescopic cylinder piston rod sequentially drives the active clamping component to move, the linkage mechanism to drive, the driven clamping component to close, and the inner support mechanism to expand. The entire fixing process requires no manual intervention and can be completed with a single button start. The fixing time of a single housing is reduced by more than 60% compared to the traditional method.

[0015] After welding is completed, the retraction of the telescopic cylinder piston rod resets each mechanism via reverse linkage. The outer clamping assembly separates, and the inner support mechanism retracts, allowing operators to directly remove the workpiece, avoiding the hassle of resetting multiple mechanisms individually in traditional devices. Furthermore, compared to multi-power source designs, the mechanical linkage structure has a lower failure rate and faster response speed, reducing equipment downtime for maintenance and further enhancing the continuous operation capability of the production line.

[0016] 3. This invention, through modular and adaptive design, possesses strong adaptability while reducing the cost of equipment use and maintenance. Regarding size adaptation, the sliding stroke of the outer clamping component along the slide bar can be adjusted via the stroke of the telescopic cylinder, and the expansion range of the slider of the inner support mechanism is determined by the arc-shaped groove profile, meeting different size requirements from small distribution boxes to medium-sized distribution cabinets without the need to replace special clamps, significantly reducing the enterprise's clamping investment costs. Regarding material adaptation, the "outer clamp, inner support" force mode can achieve adaptive clamping based on the rigidity differences of the shell material through elastic contact of the mechanical structure, avoiding shell damage due to excessive rigidity or instability due to insufficient rigidity. Regarding maintenance costs, a single power source reduces the maintenance needs of complex systems such as hydraulics and electrical control. All components adopt standardized structures, and easily damaged parts such as slide bars and hinges are convenient to procure and replace, reducing long-term maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the interior of the workbench of the present invention.

[0019] Figure 3 This is a schematic diagram of the workbench structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the auxiliary mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the drive device structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the outer clamping mechanism of the present invention.

[0023] Figure 7 This is a schematic diagram of the linkage mechanism of the present invention.

[0024] Figure 8 This is a schematic diagram of the inner support mechanism of the present invention.

[0025] Figure 9 This is an exploded view of the inner support mechanism of the present invention.

[0026] Figure 10This is an exploded view of the bottom of the inner support mechanism of the present invention.

[0027] The attached figures are labeled as follows: 1. Processing table; 101. Cross-shaped groove; 102. Rectangular groove; 2. Auxiliary mechanism; 201. L-shaped support frame; 202. Sliding column; 203. Square center frame; 204. First hinge; 205. Connecting rod; 206. Second hinge; 207. Limiting block; 3. Drive device; 301. Support plate; 302. Square sliding groove; 303. Adjustable base; 304. Rotating block; 305. Telescopic cylinder; 306. Sliding groove connecting shaft; 4. Outer clamping mechanism; 401. Square base; 402. Strip base; 403. Clamping support; 404. Sliding rod; 405. Rotating shaft column; 406. Active clamping assembly; 4061. First sliding plate; 4062. First mounting column; 4063. First support frame; 4064. First outer clamping plate; 4065. First longitudinal box placement block; 4066. First limiting slide rail; 4067. Cylinder mounting support; 407. Driven clamping assembly; 4071. Second sliding plate; 4072. Second mounting post; 4073. Second support frame; 4074. Second outer clamping block; 4075. Second longitudinal box placement block; 4076. Second limiting slide rail; 5. Linkage mechanism; 501. Gear plate; 502. Rack; 503. Fixing block; 504. Limiting hole; 6. Inner support mechanism; 601. Turntable; 6011. Arc groove; 602. Cross-shaped block; 6021. T-shaped slide groove; 603. Mounting slider; 6031. First limiting post; 604. Inner support plate; 605. Transverse box placement block; 606. L-shaped support slider; 6061. Second limiting post. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The clamping and welding device for processing power distribution cabinets involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figure 1 and Figure 2 The present invention provides a clamping and welding device for processing power distribution cabinets, including a processing table 1, auxiliary mechanisms 2 fixedly connected to the left and right sides of the upper surface of the processing table 1, a driving device 3 fixedly connected inside the processing table 1, an outer clamping mechanism 4 fixedly connected to the upper surface of the driving device 3, a linkage mechanism 5 movably connected to the upper part of the outer clamping mechanism 4, and an inner support mechanism 6 movably connected to the upper part of the linkage mechanism 5. Reference Figure 1 , Figure 2 and Figure 3 The upper surface of the processing table 1 has a cross-shaped groove 101 at its center, and rectangular grooves 102 are provided on both the left and right sides of the upper surface of the processing table 1. The inner support mechanism 6 is located in the cross-shaped groove 101, and the outer clamping mechanism 4 is located in the rectangular groove 102.

[0030] Reference Figure 3 and Figure 4 The auxiliary mechanism 2 consists of two symmetrically distributed L-shaped support frames 201. Each L-shaped support frame 201 is fixedly connected to the upper surface of the processing table 1. Each L-shaped support frame 201 has a sliding column 202 movably connected inside. Each L-shaped support frame 201 has a square center frame 203 fixedly connected to it. Each square center frame 203 has a sliding column 202 passing through it. Each square center frame 203 has a first hinge 204 at each of its four corners. Each first hinge 204 has a connecting rod 205 movably connected inside it. The other end of each connecting rod 205 is movably connected to a second hinge 206. Each second hinge 206 has a limit block 207 fixedly connected to its bottom.

[0031] Reference Figure 1 , Figure 2 and Figure 5 The drive device 3 is composed of a support plate 301. The two sides of the support plate 301 are fixedly connected to the inside of the processing table 1. A square groove 302 is provided on one side of the bottom of the support plate 301. An adjustment base 303 is fixedly connected to the other side of the bottom of the support plate 301. A rotating block 304 is movably connected inside the adjustment base 303. A telescopic cylinder 305 is fixedly connected to the bottom of the rotating block 304. The piston rod of the telescopic cylinder 305 is fixedly connected to a groove connecting shaft 306.

[0032] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7The outer clamping mechanism 4 comprises a square base 401, strip bases 402, an active clamping assembly 406, and a driven clamping assembly 407. The bottom of the square base 401 is fixedly connected to the center of the upper surface of the supporting plate 301. A rotating shaft 405 is fixedly connected to the center of the upper surface of the square base 401. The strip bases 402 are fixedly connected to the left and right sides of the upper surface of the supporting plate 301, respectively. Clamping supports 403 are fixedly connected to the four corners of the upper surface of the square base 401. Clamping supports 403 are fixedly connected to the front and rear sides of the upper surface of each strip base 402. A sliding rod 404 is fixedly connected inside the clamping support 403. The sliding rod 404 is fixedly fixed to... Four clamping supports 403 are connected to the front and rear sides. The bottom of the slide rod 404 is movably connected to one side of the square slide groove 302, and an active clamping assembly 406 is movably connected to the other side of the slide rod 404. The active clamping assembly 406 is composed of a first sliding plate 4061, which is movably connected to the slide rod 404 on both the front and rear sides. A first mounting post 4062 is fixedly connected to the middle of the upper surface of the first sliding plate 4061. First support frames 4063 are fixedly connected to the upper front and rear sides of the first mounting post 4062. A first outer clamping plate 4064 is fixedly connected to the other side of the first support frame 4063. The lower surface of the first outer clamping plate 4064 is internally... The front and rear sides are fixedly connected to the first longitudinal box placement block 4065. The bottom back of the first outer clamping plate 4064 is fixedly connected to two horizontally distributed first limiting slide rails 4066. The upper back of the first outer clamping plate 4064 is fixedly connected to two obliquely distributed first limiting slide rails 4066. The lower surface of the first slide plate 4061 is fixedly connected to the middle of the cylinder mounting bracket 4067. The cylinder mounting bracket 4067 passes through the square slide groove 302 and is movably connected to the slide groove connecting shaft 306. The driven clamping assembly 407 is composed of the second slide plate 4071. The second slide plate 4071 is movably connected to the slide rods 404 on the front and rear sides. The upper surface of the second slide plate 4071 is fixed in the middle of the slide. A second mounting post 4072 is connected to the second mounting post 4072. A second support frame 4073 is fixedly connected to the upper front and rear sides of the second mounting post 4072. A second outer clamping block 4074 is fixedly connected to the other side of the second support frame 4073. A second longitudinal box placement block 4075 is fixedly connected to the lower surface of the second outer clamping block 4074 on both the front and rear sides. Two horizontally distributed second limiting slide rails 4076 are fixedly connected to the bottom back of the second outer clamping block 4074. Two obliquely distributed second limiting slide rails 4076 are fixedly connected to the upper back of the second outer clamping block 4074. A limiting block 207 is movably connected in the first limiting slide rail 4066 and the second limiting slide rail 4076.

[0033] Reference Figure 6 and Figure 7The linkage mechanism 5 consists of a gear disk 501, a rack 502, a fixing block 503, and a limiting hole 504. The bottom of the gear disk 501 is movably connected to the rotating shaft column 405. Two centrally symmetrical racks 502 are movably connected to the front and rear sides of the gear disk 501. A fixing block 503 is fixedly connected to one end of each rack 502. A limiting hole 504 is provided at the other end of each fixing block 503. Another rack 502 passes through the limiting hole 504 at the other end of each fixing block 503. The outer middle part of the fixing block 503 is fixedly connected to the inner middle part of the first mounting column 4062. The outer middle part of the other fixing block 503 is fixedly connected to the inner middle part of the second mounting column 4072.

[0034] Reference Figure 7 , Figure 8 , Figure 9 and Figure 10 The inner support mechanism 6 is composed of a turntable 601. The bottom of the turntable 601 is fixedly connected to the gear plate 501. The interior of the turntable 601 has four centrally symmetrical arc-shaped grooves 6011. The upper part of the turntable 601 is movably connected to a cross-shaped block 602. The interior of the cross-shaped block 602 has T-shaped sliding grooves 6021 in both the horizontal and vertical directions. The front and rear sides of the interior of the T-shaped sliding grooves 6021 are movably connected to mounting sliders 603. The bottom of each mounting slider 603 is provided with a first limiting post 6031. Each limiting post 6031 is located in the arc-shaped groove 6011. Each mounting slider 603 is fixedly connected to an inner support plate 604 at its upper part. Each inner support plate 604 has two symmetrically distributed transverse box placement blocks 605 fixedly connected to its bottom left and right sides. The T-shaped slide groove 6021 has L-shaped support sliders 606 movably connected to its inner transverse left and right sides. Each L-shaped support slider 606 has a second limiting post 6061 at its bottom. Each second limiting post 6061 is located in the arc-shaped groove 6011.

[0035] Working principle of the invention: When the device is not started, all mechanisms are in a "reset state": the active clamping component 406 and the driven clamping component 407 of the outer clamping mechanism 4 are at their maximum distance and are distributed in the rectangular slots 102 on the left and right sides of the processing table 1; the inner support plate 604 and the L-shaped support slider 606 of the inner support mechanism 6 are retracted in the center of the cross-shaped slot 101 and do not expand outward; the piston rod of the telescopic cylinder 305 of the drive device 3 is in a retracted state, and the gear plate 501 and the rack 502 of the linkage mechanism 5 have no relative movement; the limiting block 207 of the auxiliary mechanism 2 is located at the initial end of the first limiting slide rail 4066 and the second limiting slide rail 4076 on the back of the clamping component and no limiting force is applied.

[0036] At this point, the operator can place the distribution cabinet housing to be welded (usually a rectangular frame or side panel assembly) in the center of the processing table 1, with the bottom edge of the housing aligned with the junction of the cross-shaped groove 101 and the rectangular groove 102, ensuring that the bottom of the housing fits snugly against the table surface.

[0037] When the equipment is started, the drive unit 3, as the sole power source, begins to work: the telescopic cylinder 305 receives a signal, the piston rod extends outward, and pushes the front end of the sliding groove connecting shaft 306 to slide along the square sliding groove 302 at the bottom of the support plate 301; the sliding groove connecting shaft 306 is connected to the cylinder mounting support 4067 of the active clamping assembly 406 through a hinge structure, so the thrust of the piston rod is directly transmitted to the active clamping assembly 406, forcing the active clamping assembly 406 to move along the slide rod 404 toward the center of the processing table 1; the slide rod 404 is fixed on the clamping support 403 to ensure that the movement trajectory is a straight line.

[0038] The movement of the active clamping component 406 triggers the outer clamping action, and at the same time, the driven clamping component 407 moves synchronously through the linkage mechanism 5: The active clamping component 406 moves as follows: the first slide plate 4061 slides along the slide bar 404 toward the center, which drives the first mounting column 4062 and the first support frame 4063 above to move synchronously, and finally makes the first outer clamping plate 4064 gradually approach one side of the outer wall of the distribution cabinet housing; the first longitudinal box placement block 4065 on the lower surface of the clamping plate is embedded in the gap at the bottom edge of the housing, which not only prevents the housing from sliding, but also prevents the bottom of the housing from deforming through longitudinal support. The inner side of the first mounting post 4062 of the active clamping assembly 406 is connected to the fixing block 503 of the linkage mechanism 5. When the active assembly moves, the fixing block 503 drives the rack 502 connected to it to move towards the gear disk 501. The rack 502 meshes with the gear disk 501, and the linear motion of the rack 502 is converted into the rotational motion of the gear disk 501. The rotation of the gear disk 501 drives the rack 502 on the other side to move in the opposite direction. The rack 502 is connected to the second mounting post 4072 of the driven clamping assembly 407 through another fixing block 503, thereby pushing the driven clamping assembly 407 to move towards the center. The second sliding plate 4071 of the driven clamping assembly 407 slides synchronously along the sliding rod 404. The second outer clamping block 4074 approaches from the other side of the housing, and the second longitudinal box placement block 4075 on its lower surface is also embedded in the bottom edge of the housing. Finally, the active and driven clamping assemblies 407 apply symmetrical clamping forces to the outer wall of the housing from the left and right sides to achieve external fixation.

[0039] When the gear disk 501 of the linkage mechanism 5 rotates, the inner support mechanism 6 starts synchronously, providing support from inside the housing, forming a synergistic effect of "outer clamping and inner support": the turntable 601 rotates with the gear disk 501: the bottom of the turntable 601 of the inner support mechanism 6 is fixed on the gear disk 501, so when the gear disk 501 rotates, the turntable 601 rotates synchronously. The slider slides along the arc groove 6011 and the T-shaped groove: The four arc grooves 6011 on the turntable 601 are eccentrically designed. The first limiting post 6031 at the bottom of the mounting slider 603 and the second limiting post 6061 at the bottom of the L-shaped support slider 606 are both embedded in the arc grooves 6011. When the turntable 601 rotates, the contour of the arc groove 6011 forces the limiting post to slide along the groove, while driving the mounting slider 603 and the L-shaped support slider 606 to move outward along the T-shaped groove 6021 of the cross-shaped block 602. The T-shaped groove restricts the direction of movement to the horizontal radial direction, ensuring that the slider expands in the "cross" direction. The mounting slider 603 drives the upper inner support plate 604 to expand forward and backward, and the L-shaped support slider 606 expands to the left and right. Finally, the ends of the inner support plate 604 and the L-shaped support slider 606 are pressed against the inner wall of the distribution cabinet housing. The horizontal box placement block 605 at the bottom of the inner support plate 604 supports the bottom edge from inside the housing and cooperates with the vertical placement block on the outside to form a "bottom three-dimensional support" to prevent the housing from deforming due to high temperature during welding.

[0040] During the process of external clamping and internal support, the auxiliary mechanism 2 simultaneously plays a limiting role to prevent the housing from tilting or shifting: when the active and driven clamping components 407 move, the first limiting slide rail 4066 and the second limiting slide rail 4076 on their back slide accordingly. The limiting block 207 of the auxiliary mechanism 2 is embedded in the slide rail. Through the guiding effect of the slide rail, the lateral and oblique slide rails cooperate to limit the movement trajectory of the clamping components, ensuring that the first outer clamping plate 4064 and the second outer clamping block 4074 are always perpendicular to the processing table 1. The limiting block 207 is connected to the first hinge 204 of the square center frame 203 through the connecting rod 205. When the clamping components move, the connecting rod 205 rotates around the hinge, driving the limiting block 207 to make slight up and down adjustments along the sliding column 202. This does not hinder the clamping action and can continuously provide vertical limiting force. The L-shaped support frame 201 is fixed on both sides of the processing table 1 to provide rigid support for the entire auxiliary mechanism 2 and ensure the stability of the limiting force.

[0041] Once the outer clamps, inner supports, and auxiliary limiters are all in place, the distribution cabinet housing is completely fixed and subjected to forces from six sides: left and right / front and back outer clamps + internal four-way support + bottom three-dimensional limiters. At this point, welding operations such as welding of housing seams and fixing of accessories can be carried out. During the welding process, the housing does not shake or deform.

[0042] After welding is completed, the piston rod of the telescopic cylinder 305 retracts, and through the above-mentioned linkage, it drives each mechanism to reset in the reverse direction: the outer clamping component separates, the inner support mechanism 6 retracts, and the auxiliary limit block 207 returns to its initial position, so that the operator can take out the welded cabinet.

[0043] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping and welding device for processing power distribution cabinets, comprising a processing table (1), characterized in that: The upper surface of the processing table (1) is fixedly connected to auxiliary mechanisms (2) on both the left and right sides. The processing table (1) is fixedly connected to a drive device (3). The upper surface of the drive device (3) is fixedly connected to an outer clamping mechanism (4). The upper part of the outer clamping mechanism (4) is movably connected to a linkage mechanism (5). The upper part of the linkage mechanism (5) is movably connected to an inner support mechanism (6). The center of the upper surface of the processing table (1) is provided with a cross-shaped groove (101). The upper surface of the processing table (1) is provided with rectangular grooves (102) on both the left and right sides. The inner support mechanism (6) is located in the cross-shaped groove (101). The outer clamping mechanism (4) is located in the rectangular groove (102). The outer clamping mechanism (4) is composed of a square base (401), a strip base (402), an active clamping assembly (406), and a driven clamping assembly (407). The clamping assembly (407) is composed of two symmetrically distributed L-shaped support frames (201). Each L-shaped support frame (201) is fixedly connected to the upper surface of the processing table (1). Each L-shaped support frame (201) is movably connected to a sliding column (202). Each L-shaped support frame (201) is fixedly connected to a square center frame (203). Each square center frame (203) has a sliding column (202) passing through it. Each square center frame (203) has a first hinge (204) at each of its four corners. Each first hinge (204) is movably connected to a connecting rod (205). The other end of each connecting rod (205) is movably connected to a second hinge (206). Each second hinge (206) has a limit block (207) fixedly connected to its bottom.

2. The clamping and welding device for processing power distribution cabinets according to claim 1, characterized in that: The bottom of the square base (401) is fixedly connected to the center of the upper surface of the support plate (301). A rotating shaft (405) is fixedly connected to the center of the upper surface of the square base (401). The strip bases (402) are fixedly connected to the left and right sides of the upper surface of the support plate (301). The four corners of the upper surface of the square base (401) are fixedly connected to clamping supports (403). The front and rear sides of the upper surface of each strip base (402) are fixedly connected to clamping supports (403). A sliding rod (404) is fixedly connected inside the clamping support (403). The sliding rod (404) is fixedly connected to the four clamping supports (403) on the front and rear sides. The bottom of the sliding rod (404) is movably connected to an active clamping component (406) on one side of the square slide groove (302). The other side of the sliding rod (404) is movably connected to (307).

3. The clamping and welding device for processing power distribution cabinets according to claim 1, characterized in that: The drive device (3) is composed of a support plate (301). The two sides of the support plate (301) are fixedly connected to the inside of the processing table (1). A square slide groove (302) is provided on one side of the bottom of the support plate (301). An adjustment base (303) is fixedly connected to the other side of the bottom of the support plate (301). A rotating block (304) is movably connected inside the adjustment base (303). A telescopic cylinder (305) is fixedly connected to the bottom of the rotating block (304). The piston rod of the telescopic cylinder (305) is fixedly connected to a slide groove connecting shaft (306).

4. The clamping and welding device for processing power distribution cabinets according to claim 1, characterized in that: The active clamping assembly (406) is composed of a first sliding plate (4061), which is movably connected to the sliding rods (404) on the front and rear sides. A first mounting post (4062) is fixedly connected to the middle of the upper surface of the first sliding plate (4061). A first support frame (4063) is fixedly connected to the front and rear sides of the upper part of the first mounting post (4062). A first outer clamping plate (4064) is fixedly connected to the other side of the first support frame (4063). The lower surface of the first outer clamping plate (4064) is internally... The front and rear sides are fixedly connected with first longitudinal box placement blocks (4065). The bottom back of the first outer clamping plate (4064) is fixedly connected with two horizontally distributed first limiting slide rails (4066). The upper back of the first outer clamping plate (4064) is fixedly connected with two obliquely distributed first limiting slide rails (4066). The middle of the lower surface of the first slide plate (4061) is fixedly connected with a cylinder mounting support (4067). The cylinder mounting support (4067) passes through the square slide groove (302) and is movably connected to the slide groove connecting shaft (306).

5. The clamping and welding device for processing power distribution cabinets according to claim 1, characterized in that: The driven clamping assembly (407) is composed of a second sliding plate (4071), which is movably connected to the sliding rods (404) on the front and rear sides. A second mounting post (4072) is fixedly connected to the middle of the upper surface of the second sliding plate (4071). A second support frame (4073) is fixedly connected to the front and rear sides of the upper part of the second mounting post (4072). A second outer clamping block (4074) is fixedly connected to the other side of the second support frame (4073). The lower surface of the outer clamping block (4074) is fixedly connected to the front and rear sides of the inner side of the outer side clamping block (4074). The bottom back of the second outer clamping block (4074) is fixedly connected to two horizontally distributed second limiting slide rails (4076). The upper back of the second outer clamping block (4074) is fixedly connected to two obliquely distributed second limiting slide rails (4076). The limiting block (207) is movably connected in the first limiting slide rail (4066) and the second limiting slide rail (4076).

6. The clamping and welding device for processing power distribution cabinets according to claim 1, characterized in that: The linkage mechanism (5) is composed of a gear plate (501), a rack (502), a fixing block (503), and a limiting hole (504). The bottom of the gear plate (501) is movably connected to the rotating shaft (405). Two centrally symmetrical racks (502) are movably connected to the front and rear sides of the gear plate (501). One end of each rack (502) is fixedly connected to a fixing block (503). The other end of each fixing block (503) is provided with a limiting hole (504). The other end of each fixing block (503) passes through another rack (502) through the limiting hole (504). The outer middle part of the fixing block (503) is fixedly connected to the inner middle part of the first mounting post (4062). The outer middle part of the other fixing block (503) is fixedly connected to the inner middle part of the second mounting post (4072).

7. The clamping and welding device for processing power distribution cabinets according to claim 1, characterized in that: The inner support mechanism (6) is composed of a turntable (601). The bottom of the turntable (601) is fixedly connected to the toothed disc (501). The turntable (601) has four centrally symmetrical arc-shaped grooves (6011) inside. A cross-shaped block (602) is movably connected to the upper part of the turntable (601). The cross-shaped block (602) has T-shaped grooves (6021) in both the horizontal and vertical directions inside. The T-shaped grooves (6021) have mounting sliders (603) movably connected to the front and rear sides in the longitudinal direction inside. Each mounting slider (603) has a first limiting post (6031) at its bottom. The first limiting post (6031) is located in the arc groove (6011). The upper part of each mounting slider (603) is fixedly connected to an inner support plate (604). The bottom left and right sides of each inner support plate (604) are fixedly connected to two symmetrically distributed transverse box placement blocks (605). The inner transverse left and right sides of the T-shaped slide groove (6021) are movably connected to L-shaped support sliders (606). The bottom of each L-shaped support slider (606) is provided with a second limiting post (6061). Each second limiting post (6061) is located in the arc groove (6011).

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