Welding device for production and continuous processing of power distribution cabinet

Abstract

The invention discloses a welding device for production and continuous processing of a power distribution cabinet, and relates to the technical field of welding, the welding device comprises a workbench, the top of the workbench is provided with a clamp mounting seat, the bottom of a connecting frame plate is provided with a calibration welding piece, and a positioning pipe is provided with a corner clamping piece connected with the calibration welding piece. According to the welding device, the calibration welding piece is arranged, a second motor and a third motor are started, and a rectangle defined by a second guide roller and a first guide roller is equal to the power distribution cabinet back plate in length and width through operation of the second motor and the third motor, so that a welding gun is close to the edge of the power distribution cabinet back plate; meanwhile, a reset spring is extruded to contract, a first telescopic air cylinder can drive a positioning ring to rotate by 360 degrees when stretching, a welding gun is made to conduct complete welding on the edge of the power distribution cabinet back plate, and therefore fixed connection between the power distribution cabinet back plate and the four power distribution cabinet side plates is achieved; in this way, welding of power distribution cabinets of different sizes is achieved, and welding continuity is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and specifically to a welding device for continuous processing in the production of distribution cabinets. Background Art

[0002] Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets. They are the end - level equipment of the power distribution system and are collectively referred to as the motor control center. Distribution cabinets are used in occasions where the load is relatively dispersed and the number of circuits is small; the motor control center is used in occasions where the load is concentrated and the number of circuits is large. They distribute the electric energy of a certain circuit of the upper - level power distribution equipment to the nearby loads.

[0003] When assembling a distribution cabinet, four side plates and one back plate need to be welded. At this time, the side plates need to be arranged in a rectangle, and then the back plate is placed on the side plates. Subsequently, the back plate is fixed to the four side plates by welding the edges of the back plate, and further fixed by welding the joints between the side plates. When processing and welding the distribution cabinet, since there are many welding points, it is necessary for workers to repeatedly adjust the position of the distribution cabinet and then weld the joints, which is cumbersome and has low welding efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for continuous processing in the production of distribution cabinets to solve the problem that the joints between the back plate and side plates of the distribution cabinet cannot be continuously welded.

[0005] To achieve the above - mentioned purpose, the present invention provides the following technical solution: A welding device for continuous processing in the production of distribution cabinets, including a workbench. A fixture mounting seat is installed on the top of the workbench. A positioning fixture is arranged on the top of the fixture mounting seat. The distribution cabinet side plates are fixed on the top of the fixture mounting seat through the positioning fixture. The distribution cabinet back plate that fits the top of the distribution cabinet side plates is placed on the top of the fixture mounting seat through the positioning fixture. A controller is installed on one side of the workbench. The bottom of the workbench is rotationally connected through a bearing to a rotating coupling shaft. Second transmission bevel gears are installed at both ends of the rotating coupling shaft. A first motor is arranged on one side of the workbench, and the output end of the first motor is connected to the rotating coupling shaft. Adjusting distance lead screws are arranged on the top of the workbench on both sides of the fixture mounting seat. A first transmission bevel gear that meshes with the second transmission bevel gear is installed at the bottom end of the adjusting distance lead screw. A U - shaped frame is sleeved on the adjusting distance lead screw. A guiding column is inserted into the top of the U - shaped frame. A connecting plate is arranged at the bottom end of the guiding column inside the U - shaped frame. A calibration welding part is arranged at the bottom of the connecting plate. A welding torch mounting seat is connected to the bottom of the connecting plate through the calibration welding part. A welding torch is installed at the bottom of the welding torch mounting seat. A positioning tube is installed inside the connecting plate. A corner positioning part connected to the calibration welding part is arranged on the positioning tube.

[0006] As a further solution of the present invention: The calibration welding part includes a clamping frame installed at the bottom of the connecting frame plate. A compensation plate is installed at the bottom of the clamping frame. A second motor is installed on the outer wall of the clamping frame. The output end of the second motor is connected to a first bidirectional lead screw. Two first sliding blocks that are slidably connected to the clamping frame are movably sleeved on the first bidirectional lead screw. One end of the first sliding block is installed with a first guide roller located inside the clamping frame. A second bidirectional lead screw that forms a 90-degree angle with the first bidirectional lead screw is installed on the outer wall of the clamping frame. A third motor connected to the first bidirectional lead screw is installed on the outer wall of the clamping frame. Two first sliding blocks that are slidably connected to the clamping frame are arranged on the second bidirectional lead screw. One side of the first sliding block is installed with a second guide roller located inside the clamping frame and arranged in a crosswise intersection with the first guide roller. A transmission spur gear is installed on the top of the connecting frame plate. A connecting shaft that penetrates the positioning tube is arranged at the bottom of the transmission spur gear. The bottom end of the connecting shaft is provided with a positioning ring located below the positioning tube. A first telescopic rod is installed on the outer wall of the positioning ring. The end of the first telescopic rod away from the positioning ring is installed with a pressure wheel. The welding torch mounting seat is connected to the pressure wheel. A reset spring connected to the positioning ring is arranged on one side at the top of the pressure wheel. A first telescopic cylinder is installed on one side of the connecting frame plate. The output end of the first telescopic cylinder is connected to a shifting rack that meshes with the transmission spur gear.

[0007] As a further solution of the present invention: The center of the transmission spur gear is coaxial with the center of the positioning ring. The center of the positioning ring is coaxial with the center of the clamping frame and the center of the fixture mounting seat.

[0008] As a further solution of the present invention: Two first guide rollers are arranged on one side of the first sliding block, and the two first guide rollers are symmetrically arranged along the horizontal central axis of the second guide roller.

[0009] As a further solution of the present invention: The number of teeth on the side of the shifting rack is equal to the number of tooth grooves of the transmission spur gear. The extension length of the first telescopic cylinder is equal to the length of the shifting rack.

[0010] As a further solution of the present invention: The corner clamping member includes a positioning ring installed on the outer wall of the positioning tube and located on the positioning ring. An annular sliding groove is formed on the outer wall of the positioning ring. An arc-shaped slider is slidably connected to the outside of the positioning ring through the annular sliding groove. A trapezoidal block is installed on the side of the arc-shaped slider away from the positioning ring. A jack penetrating through the bottom of the trapezoidal block is formed on the top of the trapezoidal block. A second telescopic rod is installed at one end of the trapezoidal block away from the arc-shaped slider. Guide rails are formed on the inner sides of the second guide roller and the first guide roller. A rectangular movable block is slidably connected to the inside of the guide rail. The rectangular movable block is located at the overlapping position of the first guide roller and the second guide roller. The rectangular movable block is slidably connected to the second guide roller and the first guide roller through the guide rail. A third telescopic cylinder located on both sides of the positioning tube is arranged inside the connecting frame plate. The output end of the third telescopic cylinder is connected to a pressing ring located above the positioning ring. A towing frame is installed on the top of the trapezoidal block. A plug rod is inserted into the top of the towing frame. A third telescopic spring connected to the towing frame is arranged on the plug rod. A sleeve is arranged on the positioning ring. A second telescopic spring is arranged at the bottom of the inner wall of the sleeve. The top end of the second telescopic spring is connected to a second pushing rod extending to the top of the sleeve. A second contact piece is arranged on one side of the second pushing rod. A first pushing rod extending to the top of the sleeve is inserted into the inside of the sleeve. A first contact piece is installed at the bottom of the first pushing rod. A first telescopic spring connected to the inner wall of the sleeve is arranged on the first pushing rod. A second telescopic cylinder located on one side of the guide post is installed on the top of the U-shaped frame. The output end of the second telescopic cylinder is connected to a towing rope connected to the top of the connecting frame plate.

[0011] As a further solution of the present invention: The number of the rectangular movable blocks is four, and the four rectangular movable blocks are all arranged at the overlapping position of the first guide roller and the second guide roller.

[0012] As a further solution of the present invention: The first contact piece is electrically connected to the first telescopic cylinder through a wire, and the second contact piece is electrically connected to the controller through a wire.

[0013] As a further solution of the present invention: Ball beads are rotatably connected to the tops of the first pushing rod and the second pushing rod through rotating shafts.

[0014] As a further solution of the present invention: The diameter of the bottom of the plug rod is equal to that of the jack, and the bottom of the plug rod is flush with the bottom of the trapezoidal block when the third telescopic cylinder is fully extended.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a calibration welding piece, start the second motor and the third motor. Through the operation of the second motor and the third motor, make the rectangle formed between the second guide roller and the first guide roller equal to the length and width of the back panel of the power distribution cabinet, so as to make the welding torch close to the edge of the back panel of the power distribution cabinet. At the same time, the reset spring is compressed and contracts. Start the welding torch and the first telescopic cylinder. When the first telescopic cylinder extends, it will drive the positioning ring to rotate 360 degrees, so that the welding torch completely welds the edge of the back panel of the power distribution cabinet, thereby realizing the fixed connection between the back panel of the power distribution cabinet and the four side panels of the power distribution cabinet, realizing the welding of power distribution cabinets of different sizes, realizing the continuity of welding, and improving the welding efficiency at the same time; 2. By setting up a corner clamping piece, when adjusting the second guide roller and the first guide roller, the rectangular movable block will move back and forth and left and right along with the movement of the first guide roller and the second guide roller. When the second guide roller and the first guide roller are adjusted to align with the edge of the back panel of the power distribution cabinet, the rectangular movable block will move to a position aligned with the corner of the back panel of the power distribution cabinet. By contracting the first telescopic cylinder, the positioning ring rotates in the reverse direction. When the first pushing rod is inserted into the jack and the first telescopic cylinder is powered off, the welding torch will then align with the corner of the back panel of the power distribution cabinet. After that, start the welding torch and the second telescopic cylinder to weld the connection between two adjacent side panels of the power distribution cabinet. Repeating this can weld the connection between adjacent side panels of the power distribution cabinet without adjusting the position of the assembled power distribution cabinet. The operation is simple, and the welding accuracy is improved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a splicing schematic diagram of the back panel of the power distribution cabinet and the side panel of the power distribution cabinet of the present invention; Figure 3 is a schematic diagram of the inner structure of the clamping frame of the present invention; Figure 4 is a connection schematic diagram of the first guide roller and the second guide roller of the present invention; Figure 5 is a connection schematic diagram of the first guide roller and the pressure wheel of the present invention; Figure 6 is a connection schematic diagram of the positioning ring and the pressure wheel of the present invention; Figure 7 is a schematic diagram of the inner structure of the sleeve of the present invention; Figure 8 is a connection schematic diagram of the positioning ring and the trapezoidal block of the present invention.

[0017] In the figure: 1, workbench; 2, controller; 3, fixture mounting base; 4, positioning fixture; 5, back panel of power distribution cabinet; 6, side panel of power distribution cabinet; 701, first motor; 702, first driving bevel gear; 703, second driving bevel gear; 704, distance-adjusting lead screw; 705, clamping frame; 706, compensating plate; 707, U-shaped frame; 708, second motor; 709, first bidirectional lead screw; 710, third motor; 711, first telescopic cylinder; 712, shifting rack; 713, driving spur gear; 714, connecting frame plate; 715, first guide roller; 716, positioning tube; 717, second guide roller; 718, first sliding block; 719, second bidirectional lead screw; 720, positioning ring; 721, pressing wheel; 722, welding torch mounting base; 723, return spring; 724, first telescopic rod; 725, coupling shaft; 726, first sliding block; 727, rotating coupling shaft; 801, second telescopic cylinder; 802, towing rope; 803, guide post; 804, third telescopic cylinder; 805, rectangular movable block; 806, guide rail; 807, second telescopic rod; 808, pressing ring; 809, sleeve; 810, first pushing rod; 811, second pushing rod; 812, first telescopic spring; 813, first contact piece; 814, second telescopic spring; 815, second contact piece; 816, jack; 817, arc-shaped sliding block; 818, positioning ring; 819, annular sliding groove; 820, trapezoidal block; 821, towing bracket; 822, third telescopic spring; 823, inserting rod; 9, welding torch. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, 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. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" 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 elements. 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. The following describes the embodiments according to the overall structure of the present invention. Embodiment

[0020] Please refer to Figures 1 to 8 In an embodiment of the present invention, a welding device for continuous processing in the production of a power distribution cabinet includes a workbench 1. A fixture mounting seat 3 is installed on the top of the workbench 1. A positioning fixture 4 is provided on the top of the fixture mounting seat 3. A power distribution cabinet side plate 6 is fixed on the top of the fixture mounting seat 3 through the positioning fixture 4. A power distribution cabinet back plate 5 that fits the top of the power distribution cabinet side plate 6 is placed on the top of the fixture mounting seat 3 through the positioning fixture 4. A controller 2 is installed on one side of the workbench 1. The bottom of the workbench 1 is rotationally connected through a bearing to a rotating coupling shaft 727. Second transmission bevel gears 703 are installed at both ends of the rotating coupling shaft 727. A first motor 701 is provided on one side of the workbench 1. The output end of the first motor 701 is connected to the rotating coupling shaft 727. Adjusting screw rods 704 are provided on the top of the workbench 1 on both sides of the fixture mounting seat 3. A first transmission bevel gear 702 that meshes with the second transmission bevel gear 703 is installed at the bottom end of the adjusting screw rod 704. A U-shaped frame 707 is sleeved on the adjusting screw rod 704. A guide post 803 is inserted into the top of the U-shaped frame 707. A connecting plate 714 is provided at the bottom end of the guide post 803 inside the U-shaped frame 707. A calibration welding part is provided at the bottom of the connecting plate 714. A welding torch mounting seat 722 is connected to the bottom of the connecting plate 714 through the calibration welding part. A welding torch 9 is installed at the bottom of the welding torch mounting seat 722. A positioning tube 716 is installed inside the connecting plate 714. An angular positioning part connected to the calibration welding part is provided on the positioning tube 716.

[0021] In this embodiment, first, the positioning fixture 4 is installed according to the sizes of the side plate 6 and the back plate 5 of the distribution cabinet. Subsequently, the back plate 5 and the side plate 6 of the distribution cabinet are installed on the top of the fixture mounting seat 3 through the positioning fixture 4, such that the center of the back plate 5 of the distribution cabinet is aligned with the center of the fixture mounting seat 3. Then, the first motor 701 is started. The first motor 701 drives the rotation of the rotating coupling shaft 727. The rotating coupling shaft 727 drives the distance-adjusting lead screw 704 to rotate through the second transmission bevel gear 703 and the first transmission bevel gear 702, thereby enabling the U-shaped frame 707 to move vertically along the distance-adjusting lead screw 704, so as to move the welding torch 9 to a height equal to that of the connection gap between the back plate 5 and the side plate 6 of the distribution cabinet. Subsequently, the welding torch 9 is moved to the connection gap between the back plate 5 and the side plate 6 of the distribution cabinet by operating the calibration welding member. Then, the welding torch 9 performs welding treatment on the connection between the back plate 5 and the side plate 6 of the distribution cabinet through the operation of the calibration welding member, thereby realizing the fixed connection between the back plate 5 and the side plate 6 of the distribution cabinet. After that, the welding torch 9 performs welding treatment on the connection between adjacent side plates 6 of the distribution cabinet by operating the corner positioning member. Embodiment

[0022] Please refer specifically to Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6, the calibration welding part includes a clamping frame 705 installed at the bottom of the connecting frame plate 714. A compensation plate 706 is installed at the bottom of the clamping frame 705. A second motor 708 is installed on the outer wall of the clamping frame 705. The output end of the second motor 708 is connected to a first bidirectional lead screw 709. Two first sliding blocks 726 that are slidably connected to the clamping frame 705 are movably sleeved on the first bidirectional lead screw 709. One end of the first sliding block 726 is installed with a first guide roller 715 located inside the clamping frame 705. A second bidirectional lead screw 719 that forms a 90-degree angle with the first bidirectional lead screw 709 is installed on the outer wall of the clamping frame 705. A third motor 710 connected to the first bidirectional lead screw 709 is installed on the outer wall of the clamping frame 705. Two first sliding blocks 718 that are slidably connected to the clamping frame 705 are arranged on the second bidirectional lead screw 719. One side of the first sliding block 718 is installed with a second guide roller 717 located inside the clamping frame 705 and arranged in a crosswise manner with the first guide roller 715. A driving spur gear 713 is installed on the top of the connecting frame plate 714. A connecting shaft 725 that penetrates the positioning tube 716 is arranged at the bottom of the driving spur gear 713. A positioning ring 720 located below the positioning tube 716 is arranged at the bottom end of the connecting shaft 725. A first telescopic rod 724 is installed on the outer wall of the positioning ring 720. One end of the first telescopic rod 724 away from the positioning ring 720 is installed with a pressing wheel 721. The welding torch mounting seat 722 is connected to the pressing wheel 721. A return spring 723 connected to the positioning ring 720 is arranged on one side of the top of the pressing wheel 721. A first telescopic cylinder 711 is installed on one side of the connecting frame plate 714. The output end of the first telescopic cylinder 711 is connected to a shifting rack 712 that meshes with the driving spur gear 713; The center of the driving spur gear 713 is coaxial with the center of the positioning ring 720. The center of the positioning ring 720 is coaxial with the center of the clamping frame 705 and the center of the fixture mounting seat 3. By setting this structure, when the driving spur gear 713 rotates, the welding torch 9 rotates along the center of the power distribution cabinet back panel 5, so that the welding torch 9 moves along the edge of the power distribution cabinet back panel 5, thereby realizing the rapid connection between the power distribution cabinet back panel 5 and the power distribution cabinet side panel 6; Two first guide rollers 715 are arranged on one side of the first sliding block 726. The two first guide rollers 715 are symmetrically arranged along the horizontal central axis of the second guide roller 717. By setting this structure, it is prevented that the second guide roller 717 and the first guide roller 715 are blocked during the movement process; The number of teeth on one side of the shifting rack 712 is equal to the number of tooth grooves of the driving spur gear 713. The extension length of the first telescopic cylinder 711 is equal to the length of the shifting rack 712. By setting this structure, after the first telescopic cylinder 711 is fully extended, the driving spur gear 713 drives the positioning ring 720 to rotate 180 degrees, so as to prevent the welding torch 9 from welding the welded part repeatedly.

[0023] In this embodiment, the second motor 708 is started, and the operation of the second motor 708 causes the two first sliding blocks 726 on the first bidirectional screw rod 709 to move toward each other, so that the first guide roller 715 moves toward the center of the positioning frame 705, so that the distance between the two first sliding blocks 726 is adjusted according to the width of the back plate 5 of the distribution cabinet. Similarly, the operation of the third motor 710 causes the first sliding block 718 to move with the second guide roller 717, so that the distance between the two second guide rollers 717 is adjusted according to the length of the back plate 5 of the distribution cabinet, so that the rectangle enclosed by the second guide roller 717 and the first guide roller 715 is equal to the length and width of the back plate 5 of the distribution cabinet, so that the welding gun 9 is close to the edge of the back plate 5 of the distribution cabinet, and at the same time, the pressure wheel 721 is affected by the second guide roller 717 during the movement of the second guide roller 717 and the first guide roller 715. Or the first guide roller 715 is squeezed and moves toward the center of the positioning ring 720. At this time, the return spring 723 is squeezed and contracts, starting the welding gun 9 and the first telescopic cylinder 711. When the first telescopic cylinder 711 is extended, the transmission spur gear 713 is rotated through the shifting rack 712, so that the positioning ring 720 drives the pressure wheel 721 to rotate. In this process, the pressure wheel 721 is subjected to the thrust applied by the return spring 723. When the positioning ring 720 rotates, the pressure wheel 721 will always be in a fit state with the second guide roller 717 or the first guide roller 715, so that the welding gun 9 moves along the edge of the back plate 5 of the distribution cabinet. When the positioning ring 720 rotates 360 degrees, the welding gun 9 completely welds the edge of the back plate 5 of the distribution cabinet, so as to achieve a fixed connection between the back plate 5 of the distribution cabinet and the four side plates 6 of the distribution cabinet, thereby achieving welding continuity and improving welding efficiency. Example

[0024] Please refer to Figures 1 to 8, the corner clamping member includes a positioning ring 818 installed on the outer wall of the positioning tube 716 and located on the positioning ring 720. An annular sliding groove 819 is formed on the outer wall of the positioning ring 818. An arc-shaped slider 817 is slidably connected to the outside of the positioning ring 818 through the annular sliding groove 819. A trapezoidal block 820 is installed on the side of the arc-shaped slider 817 away from the positioning ring 818. A jack 816 penetrating through the bottom of the trapezoidal block 820 is formed at the top of the trapezoidal block 820. A second telescopic rod 807 is installed at one end of the trapezoidal block 820 away from the arc-shaped slider 817. Guide rails 806 are formed on the inner sides of both the second guide roller 717 and the first guide roller 715. A rectangular movable block 805 is slidably connected to the inner side of the guide rail 806. The rectangular movable block 805 is located at the overlapping position of the first guide roller 715 and the second guide roller 717. The rectangular movable block 805 is slidably connected to the second guide roller 717 and the first guide roller 715 through the guide rail 806. Third telescopic cylinders 804 located on both sides of the positioning tube 716 are arranged inside the connecting frame plate 714. The output end of the third telescopic cylinder 804 is connected to a pressing ring 808 located above the positioning ring 818. A towing frame 821 is installed at the top of the trapezoidal block 820. A plug rod 823 is inserted into the top of the towing frame 821. A third telescopic spring 822 connected to the towing frame 821 is arranged on the plug rod 823. A sleeve 809 is arranged on the positioning ring 720. A second telescopic spring 814 is arranged at the bottom of the inner wall of the sleeve 809. The top end of the second telescopic spring 814 is connected to a second pushing rod 811 extending to the top of the sleeve 809. A second contact piece 815 is arranged on one side of the second pushing rod 811. A first pushing rod 810 extending to the top of the sleeve 809 is inserted into the sleeve 809. A first contact piece 813 is installed at the bottom of the first pushing rod 810. A first telescopic spring 812 connected to the inner wall of the sleeve 809 is arranged on the first pushing rod 810. A second telescopic cylinder 801 located on one side of the guide post 803 is installed at the top of the U-shaped frame 707. The output end of the second telescopic cylinder 801 is connected to a towing rope 802 connected to the top of the connecting frame plate 714; The number of the rectangular movable blocks 805 is set to four, and the four rectangular movable blocks 805 are all arranged at the overlapping position of the first guide roller 715 and the second guide roller 717. By setting this structure, after the second guide roller 717 and the first guide roller 715 are adjusted, the four rectangular movable blocks 805 are respectively aligned with the four corners of the back panel 5 of the power distribution cabinet, and then the connection part of the adjacent power distribution cabinet side plates 6 is welded by cooperating with the operation of the welding torch 9; The first contact piece 813 is electrically connected to the first telescopic cylinder 711 through a wire, and the second contact piece 815 is electrically connected to the controller 2 through a wire. By setting this structure, when the first contact piece 813 contacts the second contact piece 815, the first telescopic cylinder 711 is powered on, and then the controller 2 operates to control the expansion and contraction of the first telescopic cylinder 711, so as to accurately control the stop operation timing of the first telescopic cylinder 711; At the tops of the first pushing rod 810 and the second pushing rod 811, balls are rotatably connected through rotating shafts. By setting this structure, the frictional force between the second pushing rod 811, the first pushing rod 810 and the trapezoidal block 820 is reduced, thereby increasing the service life of the device; The diameter of the bottom of the insertion rod 823 is equal to that of the insertion hole 816. When the third telescopic cylinder 804 is fully extended, the bottom of the insertion rod 823 is flush with the bottom of the trapezoidal block 820. By setting this structure, when the third telescopic cylinder 804 is fully extended, the insertion rod 823 seals the insertion hole 816, so that when the sleeve 809 moves when the third telescopic cylinder 804 is fully extended, the first pushing rod 810 and the second pushing rod 811 rise and fall synchronously.

[0025] In this embodiment, when adjusting the second guide roller 717 and the first guide roller 715, the rectangular movable block 805 will move back and forth and left and right along with the movement of the first guide roller 715 and the second guide roller 717. During the movement of the rectangular movable block 805, the arc-shaped slider 817 will slide along the inner wall of the annular chute 819 as the position of the rectangular movable block 805 changes. At the same time, the second telescopic rod 807 will also expand and contract as the position of the rectangular movable block 805 changes. When the second guide roller 717 and the first guide roller 715 are adjusted to align with the edge of the back panel 5 of the power distribution cabinet, the rectangular movable block 805 will move to a position aligned with the corner of the back panel 5 of the power distribution cabinet. Before the first telescopic cylinder 711 extends, the third telescopic cylinder 804 is started, and the bottom of the insertion rod 823 is pushed down by the third telescopic cylinder 804 to block the insertion hole 816. At this time, when the positioning ring 720 rotated by the extension of the first telescopic cylinder 711, the first contact piece 813 and the second contact piece 815 are always in a fitting state. After the welding torch 9 welds the edge of the back panel 5 of the power distribution cabinet, the third telescopic cylinder 804 is started, and the bottom of the insertion rod 823 is separated from the insertion hole 816 by the contraction of the third telescopic cylinder 804. Then the welding torch 9 is turned off and the first telescopic cylinder 711 is contracted. The positioning ring 720 is rotated in the reverse direction by the contraction of the first telescopic cylinder 711. When the first pushing rod 810 and the second pushing rod 811 contact the trapezoidal block 820, the first pushing rod 810 and the second pushing rod 811 will move to the lower part of the trapezoidal block 820 under the guidance of the inclined surface of the trapezoidal block 820. During this process, the first pushing rod 810 and the second pushing rod 811 move down synchronously relative to the sleeve 809. When the first pushing rod 810 is aligned with the insertion hole 816, the first pushing rod 810 is inserted into the insertion hole 816 under the action of the elastic restoring force of the first telescopic spring 812. At this time, the first contact piece 813 and the second contact piece 815 are separated, and at the same time, the first telescopic cylinder 711 is powered off. At this time, the welding torch 9 will be aligned with the corner of the back panel 5 of the power distribution cabinet. Then the welding torch 9 and the second telescopic cylinder 801 are started. The second telescopic cylinder 801 extends, and the connecting frame plate 714 moves down under the action of gravity, so that the welding torch 9 welds the connection between two adjacent side panels 6 of the power distribution cabinet. When the supplementary plate 706 contacts the fixture mounting seat 3, the welding torch 9 is turned off, and at the same time, the second telescopic cylinder 801 is controlled to contract, so that the welding torch 9 moves to the corner again. Then the insertion rod 823 is extended by the third telescopic cylinder 804 to push the first pushing rod 810 out of the insertion hole 816, so that the first telescopic cylinder 711 continues to contract. Then the insertion hole 816 is unblocked by the contraction of the third telescopic cylinder 804. In this way, when the welding torch 9 moves to another corner of the back panel 5 of the power distribution cabinet, the first telescopic cylinder 711 stops operating. Similarly, by starting the welding torch 9 and the second telescopic cylinder 801, the connection between two adjacent side panels 6 of the power distribution cabinet can be welded.By repeating this process, the connection points of the adjacent side plates 6 of the distribution cabinets can be welded, thus realizing the continuity of the welding of the distribution cabinets and improving the welding accuracy at the same time.

[0026] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A welding device for continuous processing of power distribution cabinets, comprising a workbench (1), characterized in that: A fixture mounting seat (3) is installed on the top of the workbench (1), and a positioning fixture (4) is arranged on the top of the fixture mounting seat (3). A distribution cabinet side panel (6) is fixed to the top of the fixture mounting seat (3) through the positioning fixture (4). A distribution cabinet back panel (5) that is in contact with the top of the distribution cabinet side panel (6) is placed on the top of the fixture mounting seat (3) through the positioning fixture (4). A controller (2) is installed on one side of the workbench (1). A rotating shaft (727) is rotatably connected to the bottom of the workbench (1) through a bearing. Second transmission bevel gears (703) are installed at both ends of the rotating shaft (727). A first motor (701) is arranged on one side of the workbench (1), and the output end of the first motor (701) is connected to the rotating shaft (727). A gear located on the fixture mounting seat (3) is arranged on the top of the workbench (1). The pitch-adjusting screw rods (704) on both sides are provided with a first transmission bevel gear (702) meshing with a second transmission bevel gear (703) at the bottom end of the pitch-adjusting screw rods (704); a U-shaped frame (707) is sleeved on the pitch-adjusting screw rods (704); a guide column (803) is inserted at the top of the U-shaped frame (707); a connecting frame plate (714) located inside the U-shaped frame (707) is provided at the bottom end of the guide column (803); a calibration weldment is provided at the bottom of the connecting frame plate (714); a welding gun mounting seat (722) is connected to the bottom of the connecting frame plate (714) via the calibration weldment; a welding gun (9) is installed at the bottom of the welding gun mounting seat (722); a positioning tube (716) is installed on the inside of the connecting frame plate (714); and a corner positioning member connected to the calibration weldment is provided on the positioning tube (716).

2. A welding device for continuous processing of power distribution cabinets according to claim 1, characterized in that: The calibration weldment comprises a positioning frame (705) installed at the bottom of the connecting frame plate (714), a filling plate (706) is installed at the bottom of the positioning frame (705), a second motor (708) is installed on the outer wall of the positioning frame (705), an output end of the second motor (708) is connected to a first bidirectional screw rod (709), two first sliding blocks (726) slidably connected to the positioning frame (705) are movably sleeved on the first bidirectional screw rod (709), and the first sliding blocks (726) are slidably connected to the positioning frame (705). ) is installed at one end thereof with a first guide roller (715) located inside the locking frame (705); a second bidirectional screw rod (719) arranged at a ninety-degree angle with the first bidirectional screw rod (709) is installed on the outer wall of the locking frame (705); a third motor (710) connected to the first bidirectional screw rod (709) is installed on the outer wall of the locking frame (705); two first sliding blocks (718) slidably connected to the locking frame (705) are arranged on the second bidirectional screw rod (719); the first sliding blocks (718) are A second guide roller (717) is installed on one side of the connecting frame (705) and is arranged in a cross-staggered manner with the first guide roller (715). A transmission spur gear (713) is installed on the top of the connecting frame plate (714). A connecting shaft (725) penetrating the positioning tube (716) is installed at the bottom of the connecting shaft (725). A positioning ring (720) located below the positioning tube (716) is installed at the bottom end of the connecting shaft (725). A first telescopic rod ( 724), a pressure wheel (721) is installed at one end of the first telescopic rod (724) away from the positioning ring (720), the welding gun mounting seat (722) is connected to the pressure wheel (721), a return spring (723) connected to the positioning ring (720) is arranged on one side of the top of the pressure wheel (721), and a first telescopic cylinder (711) is installed on one side of the connecting frame plate (714), and the output end of the first telescopic cylinder (711) is connected to a shifting rack (712) meshing with a transmission spur gear (713).

3. A welding device for continuous processing of power distribution cabinets according to claim 2, characterized in that: The center of the transmission spur gear (713) is coaxial with the center of the positioning ring (720), and the center of the positioning ring (720) is coaxial with the center of the positioning frame (705) and the center of the clamp mounting seat (3).

4. A welding device for continuous processing of power distribution cabinets according to claim 2, characterized in that: Two first guide rollers (715) are arranged on one side of the first sliding block (726), and the two first guide rollers (715) are symmetrically arranged along the transverse center axis of the second guide roller (717).

5. A welding device for continuous processing of power distribution cabinets according to claim 2, characterized in that: The number of teeth on one side of the shifting rack (712) is equal to the number of tooth grooves of the transmission spur gear (713), and the extension length of the first telescopic cylinder (711) is equal to the length of the shifting rack (712).

6. A welding device for continuous processing of power distribution cabinets according to claim 2, characterized in that: The corner retaining member comprises a positioning ring (818) mounted on the outer wall of the positioning tube (716) and located on the positioning ring (720); an annular groove (819) is provided on the outer wall of the positioning ring (818); an arc-shaped slider (817) is slidably connected to the outer side of the positioning ring (818) via the annular groove (819); a trapezoidal block (820) is mounted on the side of the arc-shaped slider (817) away from the positioning ring (818); a plug hole (816) is provided on the top of the trapezoidal block (820) and extends to the bottom of the trapezoidal block (820); a second extension is mounted on the end of the trapezoidal block (820) away from the arc-shaped slider (817); The second guide roller (717) and the first guide roller (715) are provided with guide rails (806) on their inner sides. A rectangular movable block (805) is slidably connected to the inner side of the guide rail (806). The rectangular movable block (805) is located at the overlap of the first guide roller (715) and the second guide roller (717). The rectangular movable block (805) is slidably connected to the second guide roller (717) and the first guide roller (715) through the guide rails (806). A third telescopic cylinder (804) is provided on the inner side of the connecting frame plate (714) and is located on both sides of the positioning tube (716). The third telescopic cylinder (804) is provided on the inner side of the connecting frame plate (714). The output end of the trapezoidal block (820) is connected to a pressure ring (808) located above the positioning ring (818); a carriage (821) is installed on the top of the trapezoidal block (820); a plug rod (823) is inserted on the top of the carriage (821); a third telescopic spring (822) connected to the carriage (821) is arranged on the plug rod (823); a sleeve (809) is arranged on the positioning ring (720); a second telescopic spring (814) is arranged at the bottom of the inner wall of the sleeve (809); a second push rod (811) extending to the top of the sleeve (809) is connected to the top of the second telescopic spring (814); the second push rod (811) is connected to the top of the sleeve (809); A second contact piece (815) is provided on one side of the sleeve (811), a first push rod (810) extending to the top of the sleeve (809) is inserted into the interior of the sleeve (809), a first contact piece (813) is installed at the bottom of the first push rod (810), a first telescopic spring (812) connected to the inner wall of the sleeve (809) is provided on the first push rod (810), a second telescopic cylinder (801) located on one side of the guide column (803) is installed on the top of the U-shaped frame (707), and the output end of the second telescopic cylinder (801) is connected to a traction rope (802) connected to the top of the connecting frame plate (714).

7. A welding device for continuous processing of power distribution cabinets according to claim 6, characterized in that: The number of the rectangular movable blocks (805) is four, and the four rectangular movable blocks (805) are all arranged at the overlapping position of the first guide roller (715) and the second guide roller (717).

8. A welding device for continuous processing of power distribution cabinets according to claim 6, characterized in that: The first contact piece (813) is electrically connected to the first telescopic cylinder (711) via a wire, and the second contact piece (815) is electrically connected to the controller (2) via a wire.

9. A welding device for continuous processing of power distribution cabinets according to claim 6, characterized in that: The tops of the first pushing rod (810) and the second pushing rod (811) are both rotatably connected to balls via a rotating shaft.

10. A welding device for continuous processing of power distribution cabinets according to claim 6, characterized in that: The bottom of the insertion rod (823) is equal in diameter to the insertion hole (816), and when the third telescopic cylinder (804) is fully extended, the bottom of the insertion rod (823) is flush with the bottom of the trapezoidal block (820).

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