Automatic welding equipment for bus duct and copper bar of high-low voltage switch cabinet

Abstract

The invention discloses high-low voltage switch cabinet bus duct copper bar automatic welding equipment in the technical field of bus duct copper bar welding, which comprises an L-shaped connecting plate, the lower end of the L-shaped connecting plate is fixedly connected with a plurality of supporting legs, the L-shaped connecting plate is internally provided with an L-shaped guide cavity, the upper end and the lower end of the L-shaped connecting plate are each internally provided with two avoiding cavities, and the supporting legs are fixedly connected with the L-shaped guide cavity. The interior of the receding cavity communicates with the L-shaped guide cavity, the interior of the receding cavity is movably connected to a detection connecting mechanism, and a grinding mechanism is arranged in the detection connecting mechanism. The copper bar is pushed into the L-shaped guide cavity through the feeding port, the cutting end of the copper bar is pushed to the position of the grinding mechanism through the pushing mechanism, the grinding mechanism conducts movable grinding along the cut-off end of the copper bar, the detection connecting mechanism detects the movement condition of the grinding mechanism during grinding, and when the movement amplitude of the grinding mechanism during grinding is large, the grinding mechanism conducts grinding on the copper bar. And when the movement amplitude is small, the deviation of the cutting position is small.

Description

Technical Field

[0001] The invention relates to the technical field of busbar copper bar welding, and in particular to automatic welding equipment for busbar copper bars of high and low voltage switch cabinets. Background Art

[0002] Busbar duct is a busbar system composed of a protective casing, conductive bars, insulating materials and related accessories. It has the ability to collect and distribute electricity and is used to transmit electrical energy. Busbar duct has the advantages of strong current carrying capacity, convenient installation and tapping, excellent fire resistance and heat dissipation performance, and simple operation and maintenance. Therefore, more and more high and low voltage switchgear choose to use busbar products to replace traditional transmission cables.

[0003] For example, the Chinese patent with the announcement number CN118162793B discloses a dense busbar copper busbar welding device, including: two conveying rails perpendicular to each other, the track surfaces of the conveying rails are coplanar and symmetrically arranged, and are used to convey the copper busbar; side rails are provided on both sides of the conveying rails, one end of the side rails is vertically connected to the conveying rails, and the side rails are slidably fitted with pressure plates, which are used to limit the copper busbar on the conveying rails.

[0004] However, the above solution has the following deficiencies: in the above patent, the positioning of copper bars of different models on the conveyor track is achieved by a pressure plate, and the copper bars are moved by a conveyor belt to align the welding ends of the copper bars, and the copper bars are fixed by a pressure block so that the copper bars will not move during welding by the welding gun. However, the above patent lacks a mechanism for detecting the angle of the copper bar cutting. This means that when the angle deviation of the cutting point is large, the contact between the two copper bars will not be completely fitted. At this time, the contact between the two copper bars cannot be completely welded during the welding process. For this reason, we have introduced an automatic welding device for copper bars of bus ducts of high and low voltage switch cabinets. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic welding device for busbar copper bars of high and low voltage switch cabinets to solve the problems raised in the above background technology.

[0006] The object of the present invention is achieved as follows: an automatic welding device for copper bars of bus ducts of high and low voltage switch cabinets, comprising an L-shaped connecting plate, a plurality of supporting legs fixedly connected to the lower end of the L-shaped connecting plate, an L-shaped guide cavity provided in the L-shaped connecting plate, two clearance cavities provided in the upper and lower ends of the L-shaped connecting plate, the clearance cavities being connected to the L-shaped guide cavity, the clearance cavities being movably connected to a detection connection mechanism, the detection connection mechanism being provided with a grinding mechanism, the grinding mechanism being used to grind the copper bar welding point, and the detection connection mechanism being used to detect the angle of the copper bar welding point; The upper and lower ends of the L-shaped connecting plate are provided with welding mechanisms, and the contact points of the two copper bars are welded by the welding mechanisms. Two pushing mechanisms are provided in the L-shaped guide cavity, and the copper bars are pushed to move by the pushing mechanisms. One side of the L-shaped connecting plate is movably connected to the first push rod and has two feed ports, and the other side is movably connected to the two second push rods and has a discharge port.

[0007] Preferably, the detection connection mechanism includes a connecting plate, which is arranged in the clearance cavity, and both ends of the connecting plate are fixedly connected with T-blocks, and the T-blocks are slid into the T-slots. Both ends of the clearance cavity are provided with T-slots, and a connecting spring is fixedly connected in the T-slots, and the other end of the connecting spring is fixedly connected to the T-block.

[0008] Preferably, a push switch is fixedly installed at the left end of the T-slot, and a displacement sensor is fixedly connected to the right end. A limiting through slot is provided at the upper end of the connecting plate, and a grinding mechanism is provided in the limiting through slot.

[0009] Preferably, the grinding mechanism includes an I-shaped grinding wheel, which is arranged between two connecting plates, and the upper and lower ends of the I-shaped grinding wheel are respectively movably connected to the slider, and the slider is slid into the limiting groove, and a first screw rod is screwed in the upper slider, and both ends of the first screw rod are respectively movably connected to the support plate, and the support plate is fixedly connected to the upper end of the connecting plate, and a first motor is fixedly installed on one side of the support plate, and the output end of the first motor is fixedly connected to the first screw rod, and the lower end of the lower slider is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the lower end of the I-shaped grinding wheel.

[0010] Preferably, the welding mechanism includes a limit frame, which is fixedly connected to the L-shaped connecting plate, a welding gun is slidably connected to the inner side of the limit frame, a second screw rod is threaded in the welding gun, both ends of the second screw rod are movably connected in the limit frame, one end of the limit frame is fixedly connected to a third motor, and the output end of the third motor is fixedly connected to the second screw rod.

[0011] Preferably, the pushing mechanism includes a T-shaped push plate, which is slidably connected in the L-shaped guide cavity, and the upper end of the T-shaped push plate passes through the connecting groove and is connected to the third screw rod, and the connecting groove is opened in the upper end of the L-shaped connecting plate, and the two ends of the third screw rod are respectively movably connected in the mounting plate, and the mounting plate is fixedly connected to the upper end of the L-shaped connecting plate, and one end of the third screw rod is fixedly connected to the output end of the connecting motor, and the connecting motor is fixedly connected to one side of the mounting plate.

[0012] Preferably, a first sensor and a second sensor are respectively provided between the two mounting plates, and the first sensor and the second sensor are both fixedly connected to the upper end of the L-shaped connecting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the present invention pushes the copper bar into the L-shaped guide cavity through the feed port, pushes the cut end of the copper bar to the position of the grinding mechanism through the pushing mechanism, moves and grinds along the cut end of the copper bar through the grinding mechanism, and detects the movement of the grinding mechanism during grinding by the detection connection mechanism. When the grinding mechanism moves a large range during grinding, it can be judged that the angle deviation at the cutting point of the copper bar is large. When the movement range is small, it can be judged that the deviation at the cutting point is small. The pushing mechanism continues to push the copper bar to the position of the welding mechanism for welding, thereby realizing angle detection of the cutting point of the copper bar and preventing incomplete welding of the two copper bars due to large angle deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the top structure of the present invention.

[0016] Figure 2 It is a schematic diagram of a partial top-sectional structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the main structure of the present invention.

[0018] Figure 4 This is a schematic cross-sectional view of the connection relationship between the T-block and the T-slot of the present invention.

[0019] In the figure: 1. L-shaped connecting plate; 2. Mounting plate; 3. Third screw rod; 4. T-shaped push plate; 5. Connecting motor; 6. Connecting slot; 7. Slider; 8. Connecting plate; 9. Support plate; 10. First motor; 11. Displacement cavity; 12. First push rod; 13. Third motor; 14. Second screw rod; 15. Welding gun; 16. Limit frame; 17. First screw rod; 18. Feed port; 19. Second push rod; 20. I-shaped grinding wheel; 21. T-shaped block; 22. Limiting slot; 23. T-shaped slot; 24. Displacement sensor; 25. Press switch; 26. Connecting spring; 27. Support leg; 28. Second motor; 29. ​​Discharge port; 30. Second sensor; 31. First sensor; 32. L-shaped guide cavity. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1-4 As shown, the present invention provides a technical solution: Example 1: An automatic welding device for copper busbars in high- and low-voltage switchgear busbars includes an L-shaped connecting plate 1, a plurality of support legs 27 being fixedly connected to the lower end of the L-shaped connecting plate 1, an L-shaped guide cavity 32 being defined within the L-shaped connecting plate 1, and limiting and guiding the copper busbar through the L-shaped guide cavity 32, wherein the thickness of the L-shaped guide cavity 32 is equal to that of the copper busbar. Two clearance cavities 11 are defined within the upper and lower ends of the L-shaped connecting plate 1, the clearance cavities 11 being connected to the L-shaped guide cavity 32, and the clearance cavities 11 being movably connected to a detection connection mechanism, wherein a grinding mechanism is provided within the detection connection mechanism, and the grinding mechanism is used to grind the copper busbar weld, and the detection connection mechanism is used to detect the angle of the copper busbar weld. The upper and lower ends of the L-shaped connecting plate 1 are provided with a welding mechanism, which includes a limit frame 16, which is fixedly connected to the L-shaped connecting plate 1, a welding gun 15 is slidably connected to the inner side of the limit frame 16, and a second screw rod 14 is screwed into the welding gun 15. Both ends of the second screw rod 14 are movably connected to the limit frame 16, and one end of the limit frame 16 is fixedly connected to a third motor 13. The output end of the third motor 13 is fixedly connected to the second screw rod 14. The two third motors 13 are started and drive the second screw rod 14 to rotate. The second screw rod 14 is rotated to drive the welding gun 15 to move, and the contact points of the two copper bars are welded by the two welding guns 15; Two pushing mechanisms are provided in the L-shaped guide cavity 32, which push the copper bar to move. One side of the L-shaped connecting plate 1 is movably connected to the first push rod 12 and has two feed ports 18. The length of the feed port 18 is slightly larger than the length of the copper bar. The other side is movably connected to two second push rods 19 and has a discharge port 29. The feed port 18 and the discharge port 29 are staggered to prevent the copper bar from entering the L-shaped guide cavity 32 through the feed port 18 and then being discharged from the discharge port 29.

[0022] Example 2: On the basis of Example 1, in order to be able to detect whether the angle of the cutting of the copper busbar is greatly deviated, the detection connection mechanism includes a connecting plate 8, the connecting plate 8 is arranged in the give way cavity 11, and both ends of the connecting plate 8 are fixedly connected with T-blocks 21, the T-blocks 21 are slidably connected in the T-slot 23, and both ends of the give way cavity 11 are provided with T-slots 23, and the T-slots 23 are fixedly connected with connecting springs 26, and the other end of the connecting spring 26 is fixedly connected to the T-block 21. In actual use, the connecting spring 26 with appropriate elastic force can be used according to the use situation to prevent the grinding force of the I-shaped grinding wheel 20 from being too large when the elastic force is large; A push switch 25 is fixedly installed at the left end of the T-slot 23. The push switch 25 can be selected in appropriate size and model during actual use. A displacement sensor 24 is fixedly connected to the right end. The specific model of the displacement sensor 24 is the SLC-S laser displacement sensor produced by Shenzhen Sanming Electric Co., Ltd. The displacement sensor 24 detects the movement of the T-block 21; a limiting through slot 22 is provided at the upper end of the connecting plate 8, and a grinding mechanism is provided in the limiting through slot 22.

[0023] The grinding mechanism includes an I-shaped grinding wheel 20, which is arranged between the two connecting plates 8. The upper and lower ends of the I-shaped grinding wheel 20 are respectively movably connected to the slider 7, and the slider 7 is slidably connected to the limiting through groove 22. A first screw rod 17 is screwed in the upper slider 7, and both ends of the first screw rod 17 are respectively movably connected to the support plate 9. The support plate 9 is fixedly connected to the upper end of the connecting plate 8. A first motor 10 is fixedly installed on one side of the support plate 9, and the output end of the first motor 10 is fixedly connected to the first screw rod 17. The lower end of the lower slider 7 is fixedly connected to the second motor 28, and the output end of the second motor 28 is fixedly connected to the lower end of the I-shaped grinding wheel 20. When the I-shaped grinding wheel 20 moves backward, the second motor 28 will drive the I-shaped grinding wheel 20 to rotate counterclockwise, and when the I-shaped grinding wheel 20 moves forward, the second motor 28 will drive the I-shaped grinding wheel 20 to rotate clockwise; The pushing mechanism includes a T-shaped push plate 4, which is slidably connected to the L-shaped guide cavity 32. The upper end of the T-shaped push plate 4 passes through the connecting groove 6 and is connected to the third screw rod 3. The connecting groove 6 is opened in the upper end of the L-shaped connecting plate 1. The two ends of the third screw rod 3 are respectively movably connected to the mounting plate 2. The mounting plate 2 is fixedly connected to the upper end of the L-shaped connecting plate 1. One end of the third screw rod 3 is fixedly connected to the output end of the connecting motor 5, and the connecting motor 5 is fixedly connected to one side of the mounting plate 2.

[0024] A first sensor 31 and a second sensor 30 are respectively provided between the two mounting plates 2. The first sensor 31 and the second sensor 30 are fixedly connected to the upper end of the L-shaped connecting plate 1. The specific models of the first sensor 31 and the second sensor 30 are LQD-LD61NS laser photoelectric switch sensors produced by Losda Sensor (Dongguan) Co., Ltd.

[0025] Working principle: when in use, two copper bars to be welded are sequentially placed into the L-shaped guide cavity 32 through the corresponding feed ports 18. During the placement process, the cut ends of the two copper bars are placed toward the position of the welding gun 15. After the copper bars enter the L-shaped guide cavity 32, the third screw rod 3 is driven to rotate by turning on the connecting motor 5. The rotation of the third screw rod 3 drives the T-shaped push plate 4 to move, and the copper bars are pushed to move by the T-shaped push plate 4. When the upper end of the T-shaped push plate 4 moves to the position of the first sensor 31, the connecting motor 5 will be self-locking, and the first motor 10 will start to rotate at the same time. The first motor 10 rotates to drive the first screw rod 17 to rotate, and the upper slider 7 is driven to move by the first screw rod 17. At the same time, the I-shaped grinding wheel 20 moves with the slider 7. When the I-shaped grinding wheel 20 contacts the cut end of the copper plate, as the I-shaped grinding wheel 20 moves, the connecting plate 8 moves along the give way cavity 11. At this time, the connecting spring 26 is squeezed by the T-shaped block 21, and the T-shaped block 21 cancels the pressing of the press switch 25. After the press switch 25 is canceled, the processor controls the second motor 28 and the displacement sensor 24 to start. The second motor 28 starts to drive the I-shaped grinding wheel 20 to rotate, and the cut part of the copper bar is polished by the rotation of the I-shaped grinding wheel 20. After the displacement sensor 24 is activated, it detects the movement of the T-block 21. Since the angle between the connection plate 8 and the L-shaped connection plate 1 is 45 degrees, after the copper bar enters the L-shaped guide cavity 32, the cutting part of the copper bar is parallel to the connection plate 8. Therefore, when the cutting part of the copper bar is at a standard 45-degree angle, the I-shaped grinding wheel 20 will not move during the grinding movement. When the cutting part of the copper bar is too large or too small, the displacement sensor 24 will detect that the T-block 21 is moving. When it is detected that the T-block 21 does not move during the grinding process, after the I-shaped grinding wheel 20 moves to the other side, it will move under the elastic force of the connecting spring 26 and press the press switch 25 at another position. At this time, the displacement sensor 24 and the first motor 10 will stop moving, and the connecting motor 5 will start again, so that the T-shaped push plate 4 pushes the polished copper bar to continue moving. Otherwise, the connecting motor 5 will not start. At this time, the copper bar can be pushed into the feed port 18 for discharge by pushing the second push rod 19. When the upper end of the T-shaped push plate 4 moves to the position of the second sensor 30, the connecting motor 5 will be in a self-locking state, and the cut ends of the two copper bars will contact each other. At this time, the two third motors 13 will start and drive the second screw rod 14 to rotate. The rotation of the second screw rod 14 drives the welding gun 15 to move, and the contact points of the two copper bars are welded by the two welding guns 15. After welding is completed, the welding gun 15 and the T-shaped push plate 4 will return to their initial positions. At this time, the welded copper bars can be pushed into the discharge port 29 for removal by pushing the first push rod 12.

[0026] The above embodiments are only intended to help understand the method and core concept of the present invention. It should be noted that, without departing from the principles of the present invention, a number of improvements and modifications may be made to the present invention by those skilled in the art, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic welding device for busbar copper bars of high and low voltage switch cabinets, comprising an L-shaped connecting plate, the lower end of which is fixedly connected to a plurality of supporting legs, characterized in that: An L-shaped guide cavity is provided in the L-shaped connecting plate, and two clearance cavities are provided in the upper and lower ends of the L-shaped connecting plate. The clearance cavity is connected to the L-shaped guide cavity, and the clearance cavity is movably connected to the detection connection mechanism. The detection connection mechanism is provided with a grinding mechanism, and the copper busbar welding position is ground by the grinding mechanism, and the angle of the copper busbar welding position is detected by the detection connection mechanism. The upper and lower ends of the L-shaped connecting plate are provided with welding mechanisms, and the contact points of the two copper bars are welded by the welding mechanisms. Two pushing mechanisms are provided in the L-shaped guide cavity, and the copper bars are pushed to move by the pushing mechanisms. One side of the L-shaped connecting plate is movably connected to the first push rod and has two feed ports, and the other side is movably connected to the two second push rods and has a discharge port.

2. The automatic welding equipment for bus duct copper bars of high and low voltage switch cabinets according to claim 1 is characterized in that: The detection connection mechanism includes a connecting plate, which is arranged in the clearance cavity. Both ends of the connecting plate are fixedly connected with T-blocks, and the T-blocks are slid into the T-slots. Both ends of the clearance cavity are provided with T-slots, and a connecting spring is fixedly connected in the T-slots. The other end of the connecting spring is fixedly connected to the T-block.

3. The automatic welding equipment for bus duct copper bars of high and low voltage switch cabinets according to claim 2 is characterized in that: A push switch is fixedly installed at the left end of the T-slot, and a displacement sensor is fixedly connected to the right end. A limit slot is provided at the upper end of the connecting plate, and a grinding mechanism is provided in the limit slot.

4. The automatic welding equipment for bus duct copper bars of high and low voltage switch cabinets according to claim 3 is characterized by: The grinding mechanism includes an I-shaped grinding wheel, which is arranged between two connecting plates. The upper and lower ends of the I-shaped grinding wheel are respectively movably connected to the slider, and the slider is slid into the limiting groove. A first screw rod is screwed in the upper slider, and both ends of the first screw rod are respectively movably connected to the support plate, and the support plate is fixedly connected to the upper end of the connecting plate. A first motor is fixedly installed on one side of the support plate, and the output end of the first motor is fixedly connected to the first screw rod. The lower end of the slider on the lower side is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the lower end of the I-shaped grinding wheel.

5. The automatic welding equipment for bus duct copper bars of high and low voltage switch cabinets according to claim 1 is characterized in that: The welding mechanism includes a limit frame, which is fixedly connected to the L-shaped connecting plate. A welding gun is slidably connected to the inner side of the limit frame. A second screw rod is threaded in the welding gun. Both ends of the second screw rod are movably connected to the limit frame. One end of the limit frame is fixedly connected to a third motor, and the output end of the third motor is fixedly connected to the second screw rod.

6. The automatic welding equipment for bus duct copper bars of high and low voltage switch cabinets according to claim 1 is characterized in that: The pushing mechanism includes a T-shaped push plate, which is slidably connected to the L-shaped guide cavity. The upper end of the T-shaped push plate passes through the connecting groove and is connected to the third screw rod. The connecting groove is opened in the upper end of the L-shaped connecting plate. The two ends of the third screw rod are respectively movably connected to the mounting plate. The mounting plate is fixedly connected to the upper end of the L-shaped connecting plate. One end of the third screw rod is fixedly connected to the output end of the connecting motor, and the connecting motor is fixedly connected to one side of the mounting plate.

7. The automatic welding equipment for bus duct copper bars of high and low voltage switch cabinets according to claim 6 is characterized in that: A first sensor and a second sensor are respectively provided between the two mounting plates, and the first sensor and the second sensor are both fixedly connected to the upper end of the L-shaped connecting plate.

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