Laser welding device for manufacturing power distribution cabinet

Abstract

The invention relates to the technical field of welding devices, and provides a power distribution cabinet manufacturing laser welding device which comprises a workbench, a connecting frame is fixed to the top of the workbench, an electric sliding rail is fixed to the front side of the connecting frame, and a sliding plate is installed at the moving end of the electric sliding rail; a welding machine is installed on the front side of the sliding plate, a conveying device is fixed to the top of the workbench, a fixing support is fixed to the top of the workbench, an annular support is fixed to the top of the fixing support, a disc is fixed to the top of the annular support, and a motor is fixed to the inner wall of the fixing support. A rotating shaft is fixed to the output end of the motor, and a rotating table is fixed to the top of the rotating shaft. By means of the technical scheme, the technical problems that in the prior art, deviation is prone to occurring when a machined part is welded, the stability of the machined part is difficult to guarantee, and therefore the production quality is prone to being reduced are solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of welding devices, and more specifically, to a laser welding device for manufacturing power distribution cabinets. Background Art

[0002] During the production of power distribution cabinets, hinges, as key components connecting the cabinet doors and the cabinets, their welding quality directly affects the smooth opening and closing, sealing performance, and service life of the cabinet doors.

[0003] The patent with the publication number CN215280674U relates to a rotary automatic welding device for welding household appliance hinge parts, belonging to the technical field of welding devices, including a machine base, a turntable mechanism, a positioning tooling, two sets of sliding drive mechanisms, and two sets of welding torches. The turntable mechanism is fixedly arranged on the machine base, the positioning tooling is multiple groups and fixedly connected to the top of the turntable mechanism, the two sets of sliding drive mechanisms are connected to the machine base through a fixing plate, and the two sets of welding torches are respectively slidably connected to the two sets of sliding drive mechanisms; this patent aligns two sets of oppositely arranged welding torches with the household appliance hinge on the same positioning tooling and simultaneously welds both sides of the household appliance hinge, realizing single-station one-time welding forming of the household appliance hinge, eliminating the need to set up multiple stations for welding processing, saving the cost of the welding device, improving the welding processing efficiency, avoiding the tensile stress generated after the material melts and solidifies during single-sided welding from deforming the workpiece, and improving the welding processing accuracy. However, this device is prone to deviation during welding of the workpiece to be processed, making it difficult to ensure the stability of the workpiece during processing, thus easily reducing the production quality. Therefore, a laser welding device for manufacturing power distribution cabinets is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] To overcome the above defects, embodiments of the present invention provide a laser welding device for manufacturing power distribution cabinets, solving the technical problem in the prior art that during welding of the workpiece to be processed, it is prone to deviation, making it difficult to ensure the stability of the workpiece during processing, and thus easily reducing the production quality.

[0005] According to one aspect, at least one embodiment of the present invention provides a laser welding device for manufacturing a power distribution cabinet, including a workbench. A connecting frame is fixed on the top of the workbench. An electric slide rail is fixed on the front side of the connecting frame. A sliding plate is installed on the moving end of the electric slide rail. A welding machine is installed on the front side of the sliding plate. A conveying device is fixed on the top of the workbench. A fixed bracket is fixed on the top of the workbench. An annular bracket is fixed on the top of the fixed bracket. A disc is fixed on the top of the annular bracket. A motor is fixed on the inner wall of the fixed bracket. A rotating shaft is fixed on the output end of the motor. A rotating table is fixed on the top of the rotating shaft. A fixing plate is fixed on the top of the rotating table. During installation, the motor drives the moving plate to automatically reinforce the workpiece, ensuring that the position of the hinge is consistent during each welding, thus guaranteeing the accuracy of the welding points and the consistency of the weld seams, helping to improve the welding quality, reducing welding defects caused by position deviation, reducing welding quality problems caused by vibration or displacement, and improving the consistency and reliability of the product; An elastic telescopic column is installed on one side of the fixing plate close to the annular bracket. A connecting plate is fixed on the elastic telescopic end of the elastic telescopic column. An L-shaped rod is slidably connected to the inner wall of the rotating table. A moving plate is fixed on the top of the L-shaped rod. A pulley one is fixed on the top of the L-shaped rod. A transportation bracket is fixed on the top of the fixed bracket; While clamping, the movement of the moving plate will elastically clamp the workpiece through cooperation with the connecting plate, ensuring that stable clamping force can be provided for hinges of different specifications, improving the versatility and adaptability of the fixture, reducing the situation of frequently replacing the fixture due to hinge size differences, and also preventing the hinge from shifting or deforming during the welding process, ensuring the stability and accuracy of welding, and reducing the possibility of generating welding defects; A pressing mechanism for pressing the workpiece is arranged on the top of the rotating table. An auxiliary mechanism for assisting welding is arranged on the inner wall of the rotating table; The conveying device is fixedly connected to the inner wall of the transportation bracket, and the conveying device is used to achieve automatic feeding. The welding machine is used to weld and press the workpiece. The circumferential surface of the rotating shaft contacts the inner wall of the fixed bracket. The circumferential surface of the rotating shaft contacts the inner wall of the annular bracket. The bottom of the moving plate contacts the top of the rotating table. An arc-shaped chute is opened on the inner wall of the disc. The circumferential surface of the pulley one contacts the arc-shaped chute on the inner wall of the disc, and the movement track of the pulley one is consistent with the inner wall chute of the disc.

[0006] For example, in a laser welding device for manufacturing a power distribution cabinet provided by at least one embodiment of the present invention, the pressing mechanism includes a pressing rod, and two pulleys are installed on both sides of the pressing rod. A guiding plate is fixedly connected to the top of the rotating table. While elastically clamping, the moving plate drives the pressing rod to press the welded part, avoiding displacement of the hinge due to external force during the welding process, thereby ensuring the accuracy of the welding position, ensuring that the weld seam can be accurately formed at the designed position, improving the consistency and stability of the welding quality, also improving the strength and density of the welded joint, reducing the possibility of welding defects such as pores and slag inclusions, and improving the quality and reliability of the welded joint.

[0007] According to another aspect, at least one embodiment of the present invention further provides a laser welding device for manufacturing a power distribution cabinet. A hinge block is fixedly connected to the front of the sliding plate, and a telescopic rod is hinged to the inner wall of the hinge block. Sliding tracks are fixedly connected to both sides of the fixed bracket, and a protective plate is slidably connected to the inner wall of the sliding track. When adjusting the welding machine, the sliding plate moves to drive the protective plate to protect the workpiece being welded, reducing pollution to the working environment. At the same time, it also prevents spatter from falling onto the surface of the already processed hinge, causing surface damage or affecting the appearance quality, reducing the harm to the eyes and skin of the operator, improving the safety during the operation of the equipment, and making the work more stable; the pressing rod is fixedly connected to both sides of the moving plate, an arc-shaped chute is opened in the inner wall of the guiding plate, the second pulley contacts the arc-shaped chute in the inner wall of the guiding plate, and the movement track of the second pulley is consistent with the arc-shaped chute. The bottom of the telescopic rod is hinged to both sides of the protective plate, and the protective plate contacts the outer surface of the fixed bracket, and the protective plate is used for protection during welding.

[0008] For example, in a laser welding device for manufacturing a power distribution cabinet provided by at least one embodiment of the present invention, the auxiliary mechanism includes a U-shaped knocking rod. An arc plate is fixedly connected to the outer surface of the U-shaped knocking rod, and a spring is fixedly connected to the top of the arc plate. While pressing, the pressing rod drives the U-shaped knocking rod to knock the workpiece. Knocking the workpiece can prompt these gases to escape, reduce internal defects such as pores, improve the density and quality of the weld seam, and enable the slag on the surface of the workpiece to be knocked off after processing. There is some slag adhering to the surface of the workpiece, which improves the overall quality of the workpiece; Trapezoidal plates are fixedly connected to both sides of the protective plate, positioning blocks are fixedly connected to both sides of the fixed bracket, and a clamping plate is rotatably connected to the inner wall of the positioning block through a torsion spring. While the protective plate provides protection, the protective plate drives the clamping plate to cooperate with the trapezoidal plate to lock the protective plate self-locking. The self-locking function enables the protective shell to require no additional fixing measures or manual support after installation, facilitating the welding operation for the operator, improving work efficiency, making the protective plate more stable during operation, preventing the protective plate from loosening during operation, and improving the safety of the equipment; The inner wall of the rotating table is slidably connected to the U-shaped knocking rod, the bottom of the spring is fixedly connected to the top of the rotating table, and the trapezoidal plate moves on the movement track of the clamping plate.

[0009] The beneficial effects of the embodiments of the present invention are as follows: In the present invention, through the coordinated operation of the workbench, connecting frame, electric slide rail 1, sliding plate, conveying device, welding device, fixed bracket, motor, annular bracket, rotating shaft, rotating table, fixing plate, elastic telescopic rod, connecting plate, moving plate, L-shaped rod, pulley 1, and disc, during installation, the motor drives the moving plate to automatically reinforce the workpiece, ensuring that the position of the hinge is the same each time welding is performed, thereby guaranteeing the accuracy of the welding point and the consistency of the weld seam, helping to improve the welding quality, reducing welding defects caused by position deviation, reducing welding quality problems caused by vibration or displacement, and improving the consistency and reliability of the product; While clamping, the movement of the moving plate will elastically clamp the workpiece through cooperation with the connecting plate, ensuring that stable clamping force can be provided for hinges of different specifications, improving the versatility and adaptability of the fixture, reducing the need to frequently replace the fixture due to differences in hinge sizes, and also preventing the hinge from shifting or deforming during the welding process, ensuring the stability and accuracy of welding, and reducing the possibility of generating welding defects.

[0010] In the present invention, through the coordinated operation among the pressure rod, pulley II, and guide plate, while elastically clamping, the moving plate drives the pressure rod to press the welded part, preventing the hinge from shifting due to external forces during the welding process, thus ensuring the accuracy of the welding position, ensuring that the weld seam can be precisely formed at the designed position, improving the consistency and stability of the welding quality, also enhancing the strength and density of the welded joint, reducing the possibility of welding defects such as porosity and slag inclusions, and improving the quality and reliability of the welded joint.

[0011] In the present invention, through the coordinated operation among the hinge block, telescopic rod, protective plate, and sliding track, when adjusting the welding machine, the sliding plate moves to drive the protective plate to protect the workpiece being welded, reducing the pollution of the working environment. At the same time, it also prevents the spatter from falling onto the surface of the already processed hinge, causing surface damage or affecting the appearance quality, reducing the harm to the eyes and skin of the operator, improving the safety during the operation of the equipment, and making the work more stable.

[0012] In the present invention, through the coordinated operation among the U-shaped knocking rod, arc plate, and spring, while pressing, the pressure rod drives the U-shaped knocking rod to knock the workpiece. Knocking the workpiece can prompt these gases to escape, reducing internal defects such as porosity, improving the density and quality of the weld seam, enabling the slag on the surface of the workpiece to be knocked off after processing, and there is some slag adhering to the surface of the workpiece, improving the overall quality of the workpiece.

[0013] In the present invention, through the coordinated operation among the trapezoidal plate, positioning block, and clamping plate, while the protective plate is protecting, the protective plate drives the clamping plate to cooperate with the trapezoidal plate to lock the protective plate self-locked. The self-locking function enables the protective shell not to require additional fixing measures or manual support after installation, facilitating the welding operation of the operator, improving the work efficiency, making the protective plate more stable during work, preventing the protective plate from loosening during work, and improving the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present invention and these drawings.

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the rotating table of the present invention; Figure 3 is for the present invention Figure 2 enlarged view of the structure at A in Figure 4 Schematic diagram of the disc structure of the present invention; Figure 5 Schematic diagram of the pressure bar structure of the present invention; Figure 6 Schematic diagram of the protective plate structure of the present invention; Figure 7 Schematic diagram of the U-shaped knocking rod structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure at position B in; Figure 9 Schematic diagram of the clamping plate structure of the present invention.

[0016] In the figure: 1, workbench; 2, connecting frame; 3, electric slide rail; 4, sliding plate; 5, conveying device; 6, welding machine; 7, pressing mechanism; 71, pressure bar; 72, pulley II; 73, guide plate; 74, hinge block; 75, telescopic rod; 76, protective plate; 77, sliding track; 8, auxiliary mechanism; 81, U-shaped knocking rod; 82, arc plate; 83, spring; 84, trapezoidal plate; 85, positioning block; 86, clamping plate; 9, fixed bracket; 10, motor; 11, annular bracket; 12, rotating shaft; 13, rotating table; 14, fixing plate; 15, elastic telescopic column; 16, connecting plate; 17, moving plate; 18, L-shaped rod; 19, pulley I; 20, disc; 21, transportation bracket. Detailed implementation manners The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0017] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0018] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0019] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0020] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0021] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be construed as indicating or implying relative importance.

[0022] As Figures 1 to 9 shown, it shows a laser welding device for manufacturing a power distribution cabinet in an embodiment of the present invention, including a workbench 1. A connecting frame 2 is fixed on the top of the workbench 1. An electric slide rail 3 is fixed on the front side of the connecting frame 2. A sliding plate 4 is installed on the moving end of the electric slide rail 3. A welding machine 6 is installed on the front side of the sliding plate 4. A conveying device 5 is fixed on the top of the workbench 1. A fixed bracket 9 is fixed on the top of the workbench 1. A circular bracket 11 is fixed on the top of the fixed bracket 9. A disc 20 is fixed on the top of the circular bracket 11. A motor 10 is fixed on the inner wall of the fixed bracket 9. A rotating shaft 12 is fixed on the output end of the motor 10. A rotating table 13 is fixed on the top of the rotating shaft 12. A fixing plate 14 is fixed on the top of the rotating table 13; When pressure welding the hinge, the robotic arm can be started through the main console to place the workpiece on the top of the turntable 13. At this time, the conveying device 5 is started through the main console to work. The conveying device 5 includes a screw conveying component and a conveying pipeline. When the screw blade in the screw conveying component rotates, it conveys the parts upward and transports them to one end of the conveying pipeline. The conveying pipeline is arranged obliquely and the other end is located above the turntable 13. The parts on the conveying pipeline move towards the turntable 13 in an inclined state, so as to send the components to the workpiece. After placing, the motor 10 is started through the main console to work. The motor 10 drives the rotating shaft 12 to rotate through the output end. The rotating shaft 12 drives the turntable 13 to rotate. The turntable 13 drives the workpiece on the top to the corresponding position. After reaching the corresponding position, the electric slide rail 3 can be started through the main console to work. The electric slide rail 3 works to drive the sliding plate 4 to adjust the position through the mobile end. The sliding plate 4 drives the welding machine 6 to move to the welding position, so as to weld the workpiece on the top of the turntable 13. At the same time, when the turntable 13 rotates, the turntable 13 drives the L-shaped rod 18 to rotate. The L-shaped rod 18 drives the pulley one 19 to rotate. The pulley one 19 rotates and contacts the inner wall of the disc 20 through the circumferential surface. Thus, the inner wall of the disc 20 and the chute drive the pulley one 19 to move. The pulley one 19 drives the L-shaped rod 18 to move. The L-shaped rod 18 drives the moving plate 17 to move, so that the moving plate 17 automatically strengthens the workpiece. When it rotates one circle, it will be automatically released through the inner wall chute of the disc 20, ensuring that the position of the hinge is the same every time welding is performed, thus ensuring the accuracy of the welding point and the consistency of the weld seam, helping to improve the welding quality, reducing welding defects caused by position deviation, reducing welding quality problems caused by vibration or displacement, and improving the consistency and reliability of the product.

[0023] In some examples, an elastic telescopic column 15 is installed on one side of the fixed plate 14 close to the annular bracket 11. A connecting plate 16 is fixed to the elastic telescopic end of the elastic telescopic column 15. An L-shaped rod 18 is slidably connected to the inner wall of the turntable 13. A moving plate 17 is fixed to the top of the L-shaped rod 18. A pulley one 19 is fixed to the top of the L-shaped rod 18. A transport bracket 21 is fixed to the top of the fixed bracket 9; a pressing mechanism 7 for pressing the workpiece is arranged on the top of the turntable 13, and an auxiliary mechanism 8 for assisting welding is arranged on the inner wall of the turntable 13; the conveying device 5 is fixedly connected to the inner wall of the transport bracket 21, and the conveying device 5 is used to achieve automatic feeding. The welding machine 6 is used to weld and press the workpiece. The circumferential surface of the rotating shaft 12 contacts the inner wall of the fixed bracket 9, the circumferential surface of the rotating shaft 12 contacts the inner wall of the annular bracket 11, the bottom of the moving plate 17 contacts the top of the turntable 13, an arc-shaped chute is opened on the inner wall of the disc 20, and the circumferential surface of the pulley one 19 contacts the arc-shaped chute on the inner wall of the disc 20, and the movement track of the pulley one 19 is consistent with the inner wall chute of the disc 20; While clamping the workpiece to be processed, the moving plate 17 moves to clamp the workpiece through cooperation with the connecting plate 16. During clamping, the elastic clamping of the workpiece is achieved through the elastic telescopic end of the elastic telescopic column 15, enabling the moving plate 17 to fit welding parts of more sizes, ensuring stable clamping force for hinges of different specifications, improving the versatility and adaptability of the fixture, reducing the need to frequently replace the fixture due to differences in hinge sizes, preventing the hinge from shifting or deforming during the welding process, ensuring the stability and accuracy of welding, and reducing the possibility of welding defects.

[0024] For example, as Figures 1 to 9 shown, during installation, the motor 10 drives the moving plate 17 to automatically reinforce the workpiece to be processed, ensuring that the position of the hinge is the same every time welding is performed, thus ensuring the accuracy of the welding points and the consistency of the weld seams, and helping to improve the welding quality. While clamping, the moving plate 17 moves to elastically clamp the workpiece through cooperation with the connecting plate 16, preventing the hinge from shifting or deforming during the welding process, ensuring the stability and accuracy of welding, and reducing the possibility of welding defects.

[0025] As Figures 1 to 9 shown, it shows that in another embodiment of the present invention, the pressing mechanism 7 includes a pressing rod 71, with pulleys II 72 installed on both sides of the pressing rod 71, and a guide plate 73 fixedly connected to the top of the rotating table 13; While elastically clamping the welding part, the moving plate 17 moves to drive the pressing rod 71 to move. The pressing rod 71 drives the pulley II 72 to move. The pulley II 72 moves and contacts the inner wall chute of the guide plate 73 through its circumferential surface. The movement trajectory of the pulley II 72 is consistent with the inner wall chute of the guide plate 73, thereby driving the pulley II 72 to rotate. The pulley II 72 drives the pressing rod 71 to rotate, so that the pressing rod 71 presses the welding part, avoiding the hinge from shifting due to external forces during the welding process, thus ensuring the accuracy of the welding position, ensuring that the weld seam can be accurately formed at the designed position, improving the consistency and stability of the welding quality, also improving the strength and tightness of the welded joint, reducing the possibility of welding defects such as pores and slag inclusions, and improving the quality and reliability of the welded joint. In some examples, a hinge block 74 is fixedly connected to the front of the sliding plate 4. An expansion link 75 is hinged to the inner wall of the hinge block 74. Sliding rails 77 are fixedly connected to both sides of the fixed bracket 9. A protective plate 76 is slidably connected to the inner wall of the sliding rails 77. The pressure rod 71 is fixedly connected to both sides of the moving plate 17. An arc-shaped chute is formed in the inner wall of the guide plate 73. The second pulley 72 contacts the arc-shaped chute in the inner wall of the guide plate 73, and the movement track of the second pulley 72 is consistent with that of the arc-shaped chute. The bottom of the expansion link 75 is hinged to both sides of the protective plate 76. The protective plate 76 contacts the outer surface of the fixed bracket 9, and the protective plate 76 is used for protection during welding. When adjusting the welding machine 6, the movement of the sliding plate 4 drives the hinge block 74 to move. The movement of the hinge block 74 pushes the expansion link 75 to move through the hinge point. The movement of the expansion link 75 drives the protective plate 76 to move on the inner wall of the sliding rails 77 through the hinge point. When the protective plate 76 moves onto the fixed bracket 9, the protective plate 76 will protect the workpiece being welded, reduce the pollution of the working environment, prevent the spatter from falling onto the surface of the already processed hinge, causing surface damage or affecting the appearance quality, reduce the harm to the eyes and skin of the operator, improve the safety during the operation of the equipment, and make the work more stable.

[0026] For example, as Figures 1 to 9 shown, while elastically clamping, the moving plate 17 drives the pressure rod 71 to tightly press the welded part, avoiding the displacement of the hinge due to external forces during the welding process, thus ensuring the accuracy of the welding position and improving the quality and reliability of the welding joint. When adjusting the welding machine 6, the movement of the sliding plate 4 drives the protective plate 76 to protect the workpiece being welded, reduce the harm to the eyes and skin of the operator, improve the safety during the operation of the equipment, and make the work more stable.

[0027] The auxiliary mechanism 8 includes a U-shaped knocking rod 81. An arc plate 82 is fixedly connected to the outer surface of the U-shaped knocking rod 81. A spring 83 is fixedly connected to the top of the arc plate 82. While tightly pressing the workpiece, the rotation of the pressure rod 71 will contact the top of the U-shaped knocking rod 81 through the contact surface at the bottom, thereby driving the U-shaped knocking rod 81 to move. The U-shaped knocking rod 81 drives the arc plate 82 to move. The movement of the arc plate 82 will compress the spring 83. When the workpiece is processed, the rotating table 13 rotates one circle. At this time, the pressure rod 71 opens, and the U-shaped knocking rod 81 will release the limit on the spring 83, causing the spring 83 to drive the U-shaped knocking rod 81 to reset, thereby driving the U-shaped knocking rod 81 to knock the workpiece. Knocking the workpiece can prompt these gases to escape, reduce internal defects such as pores, improve the density and quality of the weld seam, and enable the removal of the welding slag on the surface of the workpiece after processing. There is some welding slag adhering to the surface of the workpiece, improving the overall quality of the workpiece. On both sides of the protective plate 76, trapezoidal plates 84 are fixedly connected. On both sides of the fixing bracket 9, positioning blocks 85 are fixedly connected. The inner wall of the positioning block 85 is rotatably connected with a clamping plate 86 through a torsion spring; the inner wall of the rotating table 13 is slidably connected with a U-shaped knocking rod 81. The bottom of the spring 83 is fixedly connected to the top of the rotating table 13. The trapezoidal plate 84 moves on the movement track of the clamping plate 86; While the protective plate 76 is providing protection, the protective plate 76 drives the trapezoidal plate 84 to move. The trapezoidal plate 84 moves and contacts the top inclined surface of the clamping plate 86 through the inclined surface at the bottom. One end of the torsion spring is installed on the inner wall of the clamping plate 86, and the other end of the torsion spring is installed on the inner wall of the positioning block 85. When the trapezoidal plate 84 enters the inner wall of the clamping plate 86, the clamping plate 86 will be reset through the torsion spring, so that the clamping plate 86 cooperates with the trapezoidal plate 84 to lock the protective plate 76. The self-locking function enables the protective shell not to require additional fixing measures or manual support after installation, facilitating the welding operation for the operator, improving work efficiency, making the protective plate 76 more stable during operation, preventing the protective plate 76 from loosening during operation, and enhancing the safety of the equipment.

[0028] While pressing, the pressing rod 71 drives the U-shaped knocking rod 81 to knock the workpiece. Knocking the workpiece can prompt these gases to escape, reduce internal defects such as pores, and improve the density and quality of the weld seam; while the protective plate 76 is providing protection, the protective plate 76 drives the clamping plate 86 to cooperate with the trapezoidal plate 84 to lock the protective plate 76. The self-locking function enables the protective shell not to require additional fixing measures or manual support after installation, facilitating the welding operation for the operator and improving work efficiency.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A laser welding device for manufacturing a power distribution cabinet, comprising a workbench (1), characterized in that: A connecting frame (2) is fixed to the top of the workbench (1). An electric slide rail (3) is fixed to the front side of the connecting frame (2). A sliding plate (4) is installed on the moving end of the electric slide rail (3). A welding machine (6) is installed on the front side of the sliding plate (4). A conveying device (5) is fixed to the top of the workbench (1). A fixing bracket (9) is fixed to the top of the workbench (1). An annular bracket (11) is fixed to the top of the fixing bracket (9). A disc (20) is fixed to the top of the annular bracket (11). A motor (10) is fixed to the inner wall of the fixing bracket (9). A rotating shaft (12) is fixed to the output end of the motor (10). A rotating table (13) is fixed to the top of the rotating shaft (12). A fixing plate (14) is fixed to the top of the rotating table (13). An elastic telescopic column (15) is installed on one side of the fixing plate (14) close to the annular bracket (11). A connecting plate (16) is fixed to the elastic telescopic end of the elastic telescopic column (15). An L-shaped rod (18) is slidably connected to the inner wall of the rotating table (13). A moving plate (17) is fixed to the top of the L-shaped rod (18). A pulley one (19) is fixed to the top of the L-shaped rod (18). A transport bracket (21) is fixed to the top of the fixing bracket (9).

2. The laser welding device for manufacturing a power distribution cabinet according to claim 1, wherein: A pressing mechanism (7) for pressing the workpiece is arranged on the top of the rotating table (13), and an auxiliary mechanism (8) for assisting welding is arranged on the inner wall of the rotating table (13).

3. The laser welding device for manufacturing a power distribution cabinet according to claim 2, characterized in that: The conveying device (5) is fixedly connected to the inner wall of the transport bracket (21), and the conveying device (5) is used to realize automatic feeding. The welding machine (6) is used to weld and press the workpiece. The circumferential surface of the rotating shaft (12) contacts the inner wall of the fixing bracket (9). The circumferential surface of the rotating shaft (12) contacts the inner wall of the annular bracket (11). The bottom of the moving plate (17) contacts the top of the rotating table (13). An arc-shaped chute is formed in the inner wall of the disc (20). The circumferential surface of the pulley one (19) contacts the arc-shaped chute in the inner wall of the disc (20), and the movement track of the pulley one (19) is consistent with the inner wall chute of the disc (20).

4. A laser welding device for manufacturing a power distribution cabinet according to claim 3, characterized in that: The pressing mechanism (7) includes a pressing rod (71). Pulley two (72) is installed on both sides of the pressing rod (71). A guide plate (73) is fixedly connected to the top of the rotating table (13).

5. A laser welding device for manufacturing a power distribution cabinet according to claim 4, characterized in that: A hinge block (74) is fixedly connected to the front surface of the sliding plate (4). A telescopic rod (75) is hinged to the inner wall of the hinge block (74). Sliding tracks (77) are fixedly connected to both sides of the fixing bracket (9). A protective plate (76) is slidably connected to the inner wall of the sliding tracks (77).

6. The laser welding device for manufacturing a power distribution cabinet according to claim 5, characterized in that: The pressing rod (71) is fixedly connected to both sides of the moving plate (17). An arc-shaped chute is formed in the inner wall of the guide plate (73). The pulley two (72) contacts the arc-shaped chute in the inner wall of the guide plate (73), and the movement track of the pulley two (72) is consistent with the arc-shaped chute.

7. A laser welding device for manufacturing a power distribution cabinet according to claim 6, characterized in that: The bottom of the telescopic rod (75) is hinged to both sides of the protection plate (76). The protection plate (76) contacts the outer surface of the fixed bracket (9), and the protection plate (76) is used for protection during welding.

8. A laser welding device for manufacturing a power distribution cabinet according to claim 7, characterized in that: The auxiliary mechanism (8) includes a U-shaped knocking rod (81). An arc plate (82) is fixedly connected to the outer surface of the U-shaped knocking rod (81), and a spring (83) is fixedly connected to the top of the arc plate (82).

9. A laser welding device for manufacturing a power distribution cabinet according to claim 8, characterized in that: Trapezoidal plates (84) are fixedly connected to both sides of the protection plate (76). Positioning blocks (85) are fixedly connected to both sides of the fixed bracket (9). A clamping plate (86) is rotatably connected to the inner wall of the positioning block (85) through a torsion spring.

10. A laser welding device for manufacturing a power distribution cabinet according to claim 9, characterized in that: The inner wall of the rotating table (13) is slidably connected to the U-shaped knocking rod (81). The bottom of the spring (83) is fixedly connected to the top of the rotating table (13). The trapezoidal plate (84) moves on the movement track of the clamping plate (86).

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