A high-low voltage switch cabinet bus duct copper bar automatic welding equipment

Abstract

The application discloses a 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, a plurality of supporting legs are fixedly connected to the lower end of the L-shaped connecting plate, an L-shaped guide cavity is formed in the L-shaped connecting plate, two letting-position cavities are formed in the upper and lower ends of the L-shaped connecting plate, the letting-position cavities are in communication with the L-shaped guide cavity, a detection connecting mechanism is movably connected in the letting-position cavity, and a polishing mechanism is arranged in the detection connecting mechanism. The copper bar is pushed into the L-shaped guide cavity through a feeding port, the cutting end of the copper bar is pushed to the position of the polishing mechanism through a pushing mechanism, the polishing mechanism is moved along the cutting end of the copper bar for polishing, the detection connecting mechanism detects the movement of the polishing mechanism during polishing, when the movement amplitude of the polishing mechanism during polishing is large, it can be judged that the angle deviation of the cutting position of the copper bar is large, and when the movement amplitude is small, it can be judged that the deviation of the cutting position is small.

Description

Technical Field

[0001] This invention relates to the field of busbar copper busbar welding technology, and in particular to an automatic welding equipment for high and low voltage switchgear busbar copper busbars. Background Technology

[0002] Busbar trunking is a busbar system composed of a protective casing, conductive bars, insulating materials, and related accessories. It has the ability to collect and distribute power for the transmission of electrical energy. Busbar trunking has advantages such as 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 are choosing to use busbar products to replace traditional power transmission cables.

[0003] For example, Chinese patent CN118162793B discloses a dense busbar copper busbar welding equipment, including: two conveying tracks that are perpendicular to each other, with the track surfaces of the conveying tracks being coplanar and symmetrically arranged, for conveying copper busbars; and side tracks located on both sides of the conveying tracks, with one end of the side tracks vertically connected to the conveying tracks, and each side track having a sliding pressure plate for limiting the position of the copper busbars on the conveying tracks.

[0004] However, the above solution has the following shortcomings. The above patent uses a pressure plate to position different types of copper busbars on the conveyor track, and moves the copper busbars by a conveyor belt to align the welding ends of the copper busbars. The pressure block fixes the copper busbars so that they do not shift during welding. However, the above patent lacks a mechanism for detecting the angle of the copper busbar cutting point. This means that when the angle deviation at the cutting point is large, the contact point between the two copper busbars will not be completely fitted. At this time, it is impossible to completely weld the contact point between the two copper busbars during the welding process. Therefore, we have introduced an automatic welding equipment for copper busbars in high and low voltage switchgear busbar trunking. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic welding equipment for copper busbars in high and low voltage switchgear, in order to solve the problems mentioned in the background section.

[0006] The objective of this invention is achieved as follows: An automatic welding device for copper busbars in high and low voltage switchgear includes an L-shaped connecting plate. Several supporting legs are fixedly connected to the lower end of the L-shaped connecting plate. An L-shaped guide cavity is formed inside the L-shaped connecting plate. Two clearance cavities are formed at both the upper and lower ends of the L-shaped connecting plate, and these clearance cavities communicate with the L-shaped guide cavity. A detection and connection mechanism is movably connected within the clearance cavities. The detection and connection mechanism includes a grinding mechanism, which grinds the copper busbar welding area and detects the angle of the copper busbar welding area. The L-shaped connecting plate is equipped with welding mechanisms at both the upper and lower ends. The welding mechanisms are used to weld the contact points of the two copper busbars. The L-shaped guide cavity is equipped with two pushing mechanisms, which push the copper busbars to move. One side of the L-shaped connecting plate is movably connected to the first push rod and has two feed ports. The other side is movably connected to two second push rods and has a discharge port.

[0007] Preferably, the detection connection mechanism includes a connecting plate disposed in the relief cavity. T-shaped blocks are fixedly connected to both ends of the connecting plate. The T-shaped blocks slide in the T-shaped grooves. T-shaped grooves are provided at both ends of the relief cavity. A connecting spring is fixedly connected in the T-shaped grooves. The other end of the connecting spring is fixedly connected to the T-shaped block.

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

[0009] Preferably, the grinding mechanism includes an I-shaped grinding wheel, which is disposed between two connecting plates. The upper and lower ends of the I-shaped grinding wheel are movably connected to a slider, which slides in a limiting groove. A first lead screw is screwed into the upper slider, and both ends of the first lead screw are movably connected to a support plate. The support plate is fixedly connected to the upper end of the connecting plate. A first motor is fixedly installed on one side of one of the support plates, and the output end of the first motor is fixedly connected to the first lead screw. A second motor is fixedly connected to the lower end of the lower slider, 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 limiting frame, which is fixedly connected to an L-shaped connecting plate. A welding gun is slidably connected to the inside of the limiting frame, and a second lead screw is screwed into the welding gun. Both ends of the second lead screw are movably connected to the limiting frame. A third motor is fixedly connected to one end of the limiting frame, and the output end of the third motor is fixedly connected to the second lead screw.

[0011] Preferably, the pushing mechanism includes a T-shaped push plate, which is slidably connected to an L-shaped guide cavity. The upper end of the T-shaped push plate passes through a connecting groove and is connected to a third lead screw. The connecting groove is opened in the upper end of the L-shaped connecting plate. The two ends of the third lead screw are respectively movably connected to a mounting plate. The mounting plate is fixedly connected to the upper end of the L-shaped connecting plate. One end of the third lead screw is fixedly connected to the output end of a connecting motor. 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 both the first sensor and the second sensor are 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 as follows: The present invention pushes the copper busbar into the L-shaped guide cavity through the feed port, and pushes the cut end of the copper busbar to the position of the grinding mechanism through the pushing mechanism. The grinding mechanism moves and grinds along the cut end of the copper busbar. The detection and connection mechanism detects the movement of the grinding mechanism during grinding. When the movement amplitude of the grinding mechanism is large during grinding, it can be determined that the angle deviation at the cut point of the copper busbar is large. When the movement amplitude is small, it can be determined that the deviation at the cut point is small. The pushing mechanism continues to push the copper busbar to the position of the welding mechanism for welding. This realizes the angle detection of the cut point of the copper busbar and prevents incomplete welding of the two copper busbars due to large angle deviation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a top view of the structure of the present invention.

[0016] Figure 2 This is a partial top-section structural diagram of the present invention.

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

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

[0019] In the diagram: 1. L-shaped connecting plate; 2. Mounting plate; 3. Third lead screw; 4. T-shaped push plate; 5. Connecting motor; 6. Connecting groove; 7. Slider; 8. Connecting plate; 9. Support plate; 10. First motor; 11. Relief cavity; 12. First push rod; 13. Third motor; 14. Second lead screw; 15. Welding gun; 16. Limiting frame; 17. First lead screw; 18. Feed port; 19. Second push rod; 20. I-shaped grinding wheel; 21. T-block; 22. Limiting through groove; 23. T-groove; 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 Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort 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 includes an L-shaped connecting plate 1. Several support legs 27 are fixedly connected to the lower end of the L-shaped connecting plate 1. An L-shaped guide cavity 32 is formed inside the L-shaped connecting plate 1 to limit and guide the copper busbar. The thickness of the L-shaped guide cavity 32 is equal to that of the copper busbar. Two clearance cavities 11 are formed at both the upper and lower ends of the L-shaped connecting plate 1. The clearance cavities 11 are connected to the L-shaped guide cavities 32. The clearance cavities 11 are movably connected to a detection connection mechanism. The detection connection mechanism is equipped with a grinding mechanism to grind the welding joint of the copper busbar. The detection connection mechanism detects the angle of the welding joint of the copper busbar. Welding mechanisms are provided at both the upper and lower ends of the L-shaped connecting plate 1. The welding mechanism includes a limiting 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 limiting frame 16. A second lead screw 14 is screwed into the welding gun 15. Both ends of the second lead screw 14 are movably connected to the limiting frame 16. A third motor 13 is fixedly connected to one end of the limiting frame 16. The output end of the third motor 13 is fixedly connected to the second lead screw 14. The two third motors 13 are started and drive the second lead screw 14 to rotate. The rotation of the second lead screw 14 drives the welding gun 15 to move. The two welding guns 15 weld the contact points of the two copper busbars. The L-shaped guide cavity 32 is equipped with two pushing mechanisms, which drive the copper busbar to move. The L-shaped connecting plate 1 is movably connected to the first push rod 12 on one side and has two feed ports 18. The length of the feed port 18 is slightly larger than the length of the copper busbar. 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 busbar 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: Based on Example 1, in order to detect whether the angle of the cut of the copper busbar is deviated too much, the detection connection mechanism includes a connecting plate 8, which is set in the relief cavity 11. T-blocks 21 are fixedly connected to both ends of the connecting plate 8. The T-blocks 21 slide in the T-groove 23. T-grooves 23 are opened at both ends of the relief cavity 11. A connecting spring 26 is fixedly connected in the T-groove 23. 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 elasticity can be used according to the usage situation to prevent the grinding force of the I-shaped grinding wheel 20 from being too large when the elasticity is too large. A push-button switch 25 is fixedly installed on the left end of the T-slot 23. The push-button 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 type laser displacement sensor produced by Shenzhen Sanming Electric Co., Ltd. The movement of the T-block 21 is detected by the displacement sensor 24. A limit groove 22 is opened on the upper end of the connecting plate 8. A grinding mechanism is provided in the limit groove 22.

[0023] The grinding mechanism includes an I-shaped grinding wheel 20, which is disposed between two connecting plates 8. The upper and lower ends of the I-shaped grinding wheel 20 are movably connected to the slider 7, which is slidably connected to the limiting groove 22. A first lead screw 17 is screwed into the upper slider 7, and both ends of the first lead screw 17 are 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 one support plate 9, and the output end of the first motor 10 is fixedly connected to the first lead screw 17. A second motor 28 is fixedly connected to the lower end of the lower slider 7, 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. 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 slides in 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 lead screw 3. The connecting groove 6 is opened in the upper end of the L-shaped connecting plate 1. The two ends of the third lead screw 3 are respectively movably connected in 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 lead screw 3 is fixedly connected to the output end of the connecting motor 5. 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 both 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 type laser photoelectric switch sensors produced by Loshida Sensors (Dongguan) Co., Ltd.

[0025] Working principle: During use, two copper busbars to be welded are sequentially placed into the L-shaped guide cavity 32 through the corresponding feed ports 18. During placement, the cut ends of the two copper busbars are positioned towards the welding gun 15. After the copper busbars enter the L-shaped guide cavity 32, the connecting motor 5 is turned on to drive the third lead screw 3 to rotate. The rotation of the third lead screw 3 drives the T-shaped push plate 4 to move. The T-shaped push plate 4 pushes the copper busbars to move. 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-locked, and the first motor 10 will start to rotate. The first motor 10 rotates, driving the first lead screw 17 to rotate. The lead screw 17 drives the upper slider 7 to move, and 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, the connecting plate 8 moves along the relief cavity 11 as the I-shaped grinding wheel 20 moves. At this time, the connecting spring 26 is squeezed by the T-shaped block 21, and the T-shaped block 21 releases the pressure on the push switch 25. After the push switch 25 is released, the processor controls the second motor 28 and the displacement sensor 24 to start. The second motor 28 starts and drives the I-shaped grinding wheel 20 to rotate, and the rotation of the I-shaped grinding wheel 20 polishes the cut part of the copper busbar. After the displacement sensor 24 is activated, it detects the movement of the T-block 21. Since the angle between the setting position of the connecting plate 8 and the L-shaped connecting plate 1 is 45 degrees, after the copper busbar enters the L-shaped guide cavity 32, the cutting point of the copper busbar is parallel to the connecting plate 8. Therefore, when the cutting point of the copper busbar is a standard 45 degrees, the I-shaped grinding wheel 20 will not move when it performs grinding. When the cutting point angle of the copper busbar is too large or too small, the displacement sensor 24 will detect that the T-block 21 has moved. When it is detected that the T-block 21 has not moved during the grinding process, the I-shaped grinding wheel 20 will move to the other side and move under the elastic force of the connecting spring 26, and press the push 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 ground copper busbar to continue moving. Otherwise, the connecting motor 5 will not start. At this time, the copper busbar can be discharged by pushing the second push rod 19 to push one end into the feed port 18. 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 busbars will come into contact. At this time, the two third motors 13 will start and drive the second lead screw 14 to rotate. The rotation of the second lead screw 14 will drive the welding gun 15 to move. The two welding guns 15 will weld the contact points of the two copper busbars. After the welding is completed, the welding gun 15 and the T-shaped push plate 4 will return to the initial position. At this time, the welded copper busbars can be pushed into the discharge port 29 for removal by pushing the first push rod 12.

[0026] The above description of the embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An automatic welding equipment for copper busbars in high and low voltage switchgear, comprising an L-shaped connecting plate, wherein a plurality of support legs are fixedly connected to the lower end of the L-shaped connecting plate, characterized in that: The L-shaped connecting plate has an L-shaped guide cavity, and two clearance cavities are opened at the upper and lower ends of the L-shaped connecting plate. The clearance cavities are connected to the L-shaped guide cavity. A detection connection mechanism is movably connected in the clearance cavity. The detection connection mechanism is equipped with a grinding mechanism. The grinding mechanism grinds the copper busbar welding joint, and the detection connection mechanism detects the angle of the copper busbar welding joint. The L-shaped connecting plate is equipped with welding mechanisms at both the upper and lower ends. The welding mechanisms are used to weld the contact points of the two copper busbars. The L-shaped guide cavity is equipped with two pushing mechanisms, which push the copper busbars to move. One side of the L-shaped connecting plate is movably connected to the first push rod and has two feed ports. The other side is movably connected to the two second push rods and has a discharge port. The detection connection mechanism includes a connecting plate, which is disposed in the relief cavity. T-blocks are fixedly connected to both ends of the connecting plate. The T-blocks slide in the T-grooves. T-grooves are opened at both ends of the relief cavity. A connecting spring is fixedly connected in the T-grooves. The other end of the connecting spring is fixedly connected to the T-block. A push switch is fixedly installed at the left end of the T-slot, and a displacement sensor is fixedly connected at the right end. A limit slot is opened at the upper end of the connecting plate, and a grinding mechanism is provided in the limit slot. The grinding mechanism includes an I-shaped grinding wheel, the upper and lower ends of which are movably connected to a slider. The slider slides in a limiting groove. A first lead screw is screwed into the upper slider. The two ends of the first lead screw are movably connected to a support plate. The support plate is fixedly connected to the upper end of a connecting plate. A first motor is fixedly installed on one side of the support plate. The output end of the first motor is fixedly connected to the first lead screw. A second motor is fixedly connected to the lower end of the lower slider. The output end of the second motor is fixedly connected to the lower end of the I-shaped grinding wheel. The angle between the connecting plate and the L-shaped connecting plate is 45 degrees.

2. The automatic welding equipment for copper busbars of high and low voltage switchgear according to claim 1, characterized in that: The welding mechanism includes a limiting frame, which is fixedly connected to an L-shaped connecting plate. A welding gun is slidably connected to the inside of the limiting frame, and a second lead screw is screwed into the welding gun. Both ends of the second lead screw are movably connected to the limiting frame. A third motor is fixedly connected to one end of the limiting frame, and the output end of the third motor is fixedly connected to the second lead screw.

3. The automatic welding equipment for copper busbars of high and low voltage switchgear according to claim 1, characterized in that: The pushing mechanism includes a T-shaped push plate, which slides in an L-shaped guide cavity. The upper end of the T-shaped push plate passes through a connecting groove and is connected to a third lead screw. The connecting groove is located inside the upper end of the L-shaped connecting plate. Both ends of the third lead screw are movably connected to a mounting plate. The mounting plate is fixedly connected to the upper end of the L-shaped connecting plate. One end of the third lead screw is fixedly connected to the output end of a connecting motor. The connecting motor is fixedly connected to one side of the mounting plate.

4. The automatic welding equipment for copper busbars of high and low voltage switchgear according to claim 3, characterized in that: A first sensor and a second sensor are respectively provided between the two mounting plates, and both the first sensor and the second sensor are fixedly connected to the upper end of the L-shaped connecting plate.

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