A multi-station automatic welding device for switch cabinet production line

Abstract

The application relates to the technical field of switch cabinet production welding, in particular to a multi-station automatic welding equipment for a switch cabinet production line, which comprises two L-shaped frames, the top of each L-shaped frame is fixedly connected with a guide rail, two arranging mechanisms are arranged between the two guide rails in a sliding mode, the arranging mechanism comprises a carrier plate, the two ends of the carrier plate are fixedly connected with two connecting rods, and one end of each connecting rod is slidingly connected with an L-shaped block one used for adsorbing and fixing a steel plate. In the application, the multiple L-shaped blocks one on the arranging mechanism abut to the inner side of the four sides of a rectangular plate frame, the L-shaped block one can push the steel plates at the two ends of the rectangular plate frame outward, the welding positions of the adjacent steel plates are adjusted into the style of the butt joint or the fillet joint, the arranging mechanism with the rectangular plate frame is lowered to the welding mechanism to complete the welding, so that the steel plates are automatically spliced into the style of the rectangular plate frame and are automatically welded according to the fillet joint or the butt joint.

Description

Technical Field

[0001] This invention relates to the field of welding technology in switchgear manufacturing, specifically a multi-station automatic welding equipment for switchgear production lines. Background Technology

[0002] Switchgear is an electrical device in a power system that distributes, controls, and protects electrical energy. It is usually composed of a metal shell (such as steel plate) and internal electrical components (such as circuit breakers, disconnect switches, etc.). The metal shell is composed of a rectangular metal frame and front and rear baffles. For larger metal frames, multiple steel plates usually need to be spliced ​​and welded together. There are two main welding methods: butt welds and fillet welds. Butt welds are mainly used for welding thick steel plates on high-voltage distribution cabinets with high structural strength requirements, while fillet welds are mainly used for welding thin steel plates on low-voltage distribution cabinets with low structural strength requirements.

[0003] Commonly used welding equipment typically uses robotic arms to automatically weld steel plates with laser welding heads. While this type of equipment can improve welding efficiency by replacing manual welding, it cannot automatically arrange the position of the steel plates and switch the welding mode according to the different strength requirements of the high and low voltage switchgear for the welded structure, thus preventing the two steel plates from completing butt welds or fillet welds. Furthermore, before welding, it is usually necessary to manually pick up and place the steel plates and splice and fix them together, resulting in a low degree of automation. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-station automatic welding equipment for switchgear production lines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multi-station automatic welding equipment for a switchgear production line includes:

[0007] Two L-shaped frames, with guide rails fixed to the top of the L-shaped frames;

[0008] Two arrangement mechanisms are slidably connected between two guide rails. The arrangement mechanism can arrange steel plates into a pattern of butt welds or fillet welds. The arrangement mechanism includes a carrier plate. Two connecting rods are fixed at both ends of the carrier plate. One end of the connecting rod is slidably connected to an L-shaped block. Both ends of the carrier plate are rotatably connected to shafts that drive the L-shaped block to move.

[0009] The connecting plate is fixed to the two carrier plates;

[0010] Electric hoists are used to move two traction mechanisms up and down.

[0011] The splicing mechanism is fixed to two L-shaped frames, and the splicing mechanism can splice multiple steel plates into a rectangular frame.

[0012] Multiple welding mechanisms enable automated welding of steel plates at multiple workstations. Each welding mechanism includes an arc-shaped track, with a laser welding head slidably engaged on the inner side of the arc-shaped track.

[0013] Furthermore, the wire rope on the electric hoist is fixed to one of the carrier plates, and both sides of the carrier plate are fixed with sliders that are slidably connected to the guide rail.

[0014] Furthermore, a suction cup is embedded inside the L-shaped block one, and an L-shaped block two is fixed to one end of the L-shaped block one.

[0015] Furthermore, the splicing mechanism includes a support frame fixedly connected to two L-shaped frames, and cylinders two capable of driving the steel plate to move are fixed around the support frame, and cylinders three for supporting the steel plate are fixed around the support frame.

[0016] Furthermore, the output end of the cylinder three is fixed with a support plate capable of supporting the steel plate, and the support plate is slidably connected to the support frame.

[0017] Furthermore, the arrangement mechanism also includes two fixed seats, both of which are fixed to the carrier plate, and the shaft is rotatably connected to the fixed seats.

[0018] Furthermore, a dual-axis motor is fixed to the bottom of the carrier plate, and the two output ends of the dual-axis motor drive the corresponding shaft to rotate. The two ends of the shaft are respectively screwed into the corresponding L-shaped block.

[0019] Furthermore, both output ends of the dual-axis motor are fixed with connecting shafts, one end of the connecting shaft is fixed with a worm gear, and the outer side of the shaft is fixed with a worm wheel that meshes with the worm gear for transmission.

[0020] Furthermore, the welding mechanism also includes a movable seat that slides and engages with the arc-shaped track. The movable seat is screwed and fixed to the arc-shaped track with bolts. An electric push rod capable of driving the laser welding to move is installed inside the movable seat.

[0021] Furthermore, a double-headed cylinder is fixed to the outer side of the L-shaped frame, and a transmission frame that drives the moving seat to move along the arc-shaped track is fixed to both output ends of the double-headed cylinder.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. A slidable arrangement mechanism is connected between two guide rails. Four steel plates are spliced ​​into a rectangular frame by a splicing mechanism and enclosed on the outside of the arrangement mechanism. Multiple L-shaped blocks on the arrangement mechanism can simultaneously extend and push the steel plates outward. As needed, the edge welding joints of two adjacent steel plates can be adjusted to a butt weld or fillet weld state to be welded. Then, multiple suction cups on the L-shaped blocks can adsorb and fix the steel plates after position adjustment onto the arrangement mechanism. The arrangement mechanism moves down with the rectangular frame of steel plates to the welding mechanism position. The welding mechanism can automatically weld two adjacent steel plates, thereby realizing the automatic welding of steel plates by adjusting them into butt weld or fillet weld states as needed, meeting the welding requirements of high and low voltage switchgear.

[0024] 2. A support frame is fixed between two guide rails. The support frame is shaped like a chamfer, and a tray is slidably connected to the bottom of the chamfer part of the support frame. The space between the tray and the chamfer part of the support frame is convenient for storing multiple steel plates to be welded. When the steel plates are spliced ​​into a rectangular frame, the output end of cylinder two can push the steel plate with a circular plate, so that the steel plates arranged around the support frame can be automatically spliced ​​into a rectangular frame. At the same time, under the push of multiple cylinders two, the rectangular frame can be made to abut against multiple L-shaped blocks one, so that multiple suction cups on the L-shaped blocks one can initially fix the spliced ​​rectangular frame, thereby realizing automatic splicing of rectangular metal frames, eliminating manual handling and splicing of steel plates, and improving the efficiency of automatic splicing of steel plates.

[0025] 3. By setting up two arrangement mechanisms (referred to as the upper arrangement mechanism and the lower arrangement mechanism), the two arrangement mechanisms can pass through the splicing mechanism from top to bottom and fix a rectangular plate frame. When the lower arrangement mechanism moves down and passes through the welding mechanism to complete the welding, the upper arrangement mechanism can simultaneously fall to the middle of the splicing mechanism to fix another rectangular plate frame. This allows one arrangement mechanism to carry the rectangular plate frame for welding, while the other arrangement mechanism can fix the other rectangular plate frame for welding and standby, achieving the effect of cyclic feeding and welding. After the metal plate frame is welded, the suction cup can release the metal plate frame, allowing the metal plate frame to fall automatically under its own gravity, eliminating the need for manual handling of the welded metal plate frame and improving the efficiency of welding and unloading the switch cabinet metal plate frame. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the invention and the steel plate;

[0027] Figure 2 This is a schematic diagram of the downward movement structure of the arrangement mechanism in this invention;

[0028] Figure 3 This is a schematic diagram of the arrangement mechanism releasing the rectangular metal frame structure in this invention;

[0029] Figure 4This is a schematic diagram of the overall external structure of the guide rail in this invention;

[0030] Figure 5 This is a schematic diagram of the splicing mechanism structure in this invention;

[0031] Figure 6 This is a schematic diagram of the arrangement mechanism and connecting plate structure in this invention;

[0032] Figure 7 This is a schematic diagram of the welding mechanism's welding fillet weld state structure in this invention;

[0033] Figure 8 This is a schematic diagram of the welding mechanism's welding butt weld state structure in this invention.

[0034] In the diagram: 100, L-shaped frame; 110, guide rail; 120, double-headed cylinder; 121, transmission frame; 200, arrangement mechanism; 210, carrier plate; 211, slider; 220, connecting rod; 230, L-shaped block one; 231, suction cup; 232, L-shaped block two; 233, L-shaped block three; 240, shaft; 250, fixed seat; 260, dual-axis motor; 270, worm gear; 280, worm wheel; 300, connecting plate; 400, electric hoist; 500, splicing mechanism; 510, support frame; 511, fixed block; 520, cylinder two; 521, circular plate; 530, cylinder three; 531, pallet; 600, welding mechanism; 610, arc track; 620, moving seat; 621, positioning shaft; 630, laser welding head. Detailed Implementation

[0035] 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.

[0036] Example 1, please refer to Figure 1 - Figure 8In this embodiment of the invention, a multi-station automatic welding equipment for a switchgear production line includes two L-shaped frames 100. A guide rail 110 is fixedly connected to the top of each L-shaped frame 100. Two slidable arrangement mechanisms 200 are arranged between the two guide rails 110. Each slidable arrangement mechanism 200 includes a carrier plate 210. Two connecting rods 220 are fixedly connected to both ends of each carrier plate 210. One end of each connecting rod 220 is slidably connected to an L-shaped block 230 for adsorbing and fixing a steel plate. Both ends of each carrier plate 210 are rotatably connected to shafts 240 that drive the L-shaped block 230 to move. The two carrier plates 210 are fixedly connected... There is a connecting plate 300. An electric hoist 400 is installed above the arranging mechanism 200. The electric hoist 400 is used to pull the two arranging mechanisms 200 to move up and down. A splicing mechanism 500 is fixedly connected between the two L-shaped frames 100. The splicing mechanism 500 can splice multiple steel plates into a rectangular frame. Two welding mechanisms 600 are fixedly connected to the outside of the L-shaped frame 100. Multiple welding mechanisms 600 realize multi-station automatic welding of steel plates. The welding mechanism 600 includes an arc-shaped track 610 fixedly connected to the L-shaped frame 100. A laser welding head 630 is slidably engaged on the inner side of the arc-shaped track 610.

[0037] Specifically, a splicing mechanism 500 is fixed between two guide rails 110. The splicing mechanism 500 can automatically splice four steel plates into a rectangular frame, replacing manual labor. The spliced ​​rectangular frame is then pushed to the arrangement mechanism 200. The arrangement mechanism 200 uses multiple L-shaped blocks 230 to abut against the inner perimeter of the rectangular frame. The L-shaped blocks 230 can push the steel plates at both ends of the rectangular frame outward, causing the welding positions of adjacent steel plates to be adjusted to butt welds or fillet welds, meeting the welding requirements of high and low voltage switchgear and thick and thin steel plates. The arrangement mechanism 200 moves the rectangular frame down through multiple welding mechanisms 600. The multiple welding mechanisms 600 simultaneously weld different positions of the rectangular frame from different locations, thereby realizing the automatic splicing of steel plates into a rectangular frame and automatic welding according to fillet welds or butt welds as needed. This meets the welding requirements of high and low voltage switchgear while improving the welding efficiency of switchgear.

[0038] like Figure 1 , Figure 4 and Figure 6 As shown, in this embodiment, the wire rope on the electric hoist 400 is fixedly connected to one of the carrier plates 210, specifically the carrier plate 210 on the arrangement mechanism 200 above the guide rail 110. Both sides of the carrier plate 210 are fixed with sliders 211 that are slidably connected to the guide rail 110.

[0039] In this embodiment, in the initial state, referencing Figure 1The electric hoist 400 pulls two arranging mechanisms 200. The lower arranging mechanism 200 arranges the rectangular plate frame on the arranging and splicing mechanism 500. Then refer to... Figure 2 The electric hoist 400 releases the wire rope, the upper arrangement mechanism 200 moves down to the splicing mechanism 500 to arrange another rectangular plate frame, and the lower arrangement mechanism 200 moves down through multiple welding mechanisms 600 to complete the laser welding of the metal plate frame on the lower arrangement mechanism 200. Then, refer to... Figure 3 The lower arrangement mechanism 200 releases the welded metal frame, and finally the upper arrangement mechanism 200 moves down again with another rectangular frame, passes through the welding mechanism 600 for welding, and releases the welded metal frame.

[0040] In this embodiment, the electric hoist 400 is a prior art component, and its working principle will not be described in detail. The electric hoist 400 can be fixed to an external beam to complete the suspension function. The entire welding process does not require the use of multiple robotic arms to move the laser welding head 630 with multiple degrees of freedom. Instead, the rectangular plate frame is actively suspended to the position of the laser welding head 630 for automatic welding, which helps to reduce industrial welding costs.

[0041] like Figure 6 As shown, in this embodiment, a prior art suction cup 231 is embedded inside the L-shaped block 230, and suction cups 231 are installed at different positions on the outside of the L-shaped block 230. After the L-shaped block 230 is moved to the inner side of the rectangular plate frame, the two vertical sides of the L-shaped block 230 can be close to the inner side of the steel plate at different positions. Then, the suction cups 231 can work to adsorb and fix the steel plate to the outside of the L-shaped block 230. Multiple L-shaped blocks 230 work together to fix the rectangular metal plate frame.

[0042] like Figure 4-6 As shown, in this embodiment, two L-shaped blocks 230 are fixed to each other at their close ends. L-shaped blocks 233 are fixed to the top of multiple L-shaped blocks 230 on the arrangement mechanism 200 above the guide rail 110. The splicing mechanism 500 includes a support frame 510 fixedly connected to two L-shaped frames 100. Cylinders 2520 capable of driving the steel plate are fixed around the support frame 510. Cylinders 3530 for supporting the steel plate are fixed around the support frame 510. A support plate 531 capable of supporting the steel plate is fixed to the output end of the cylinder 3530. The support plate 531 is slidably connected to the support frame 510.

[0043] In this embodiment, during the vertical movement of the vertical arrangement mechanism 200, L-shaped block 232 and L-shaped block 333 can be alternately arranged around the inner perimeter of the support frame 510. At the same time, the support plate 531 supports the bottom of the steel plate, so that the spare steel plates arranged in rows inside the multiple support frames 510 will not leave the splicing mechanism 500. When the arrangement mechanism 200 moves down with the arranged metal plate frame, the output end of cylinder 3 530 moves the support plate 531 outward by the thickness of one steel plate, so that the arrangement mechanism 200 can carry the metal plate frame through the support plate 531, and the support plate 531 can still support the remaining spare steel plates.

[0044] like Figure 4 and Figure 5 As shown, in this embodiment, the bottom of the support frame 510 is fixedly connected with a fixing block 511 that is slidably connected to the corresponding support plate 531. The second cylinder 520 and the third cylinder 530 are both embedded and fixedly fixed to the L-shaped frame 100. The output end of the second cylinder 520 is fixedly connected with a circular plate 521. When it is necessary to move the steel plate to the position where it contacts the first L-shaped block 230, the output end of the second cylinder 520 can push the steel plate with the circular plate 521, so that the steel plate moves to the outside of the first L-shaped block 230, causing the suction cup 231 on the first L-shaped block 230 to adhere to the fixed steel plate.

[0045] like Figure 6 As shown, in this embodiment, the arrangement mechanism 200 also includes two fixed seats 250 that are fixedly connected to the carrier plate 210. The shaft 240 is rotatably connected to the fixed seats 250. A dual-axis motor 260 is fixed to the bottom of the carrier plate 210. A connecting shaft is fixed to both output ends of the dual-axis motor 260. A worm gear 270 is fixed to one end of the connecting shaft. A worm wheel 280 that meshes with the worm gear 270 is fixed to the outside of the shaft 240. The two ends of the shaft 240 are respectively screwed to the corresponding L-shaped block 230.

[0046] In this embodiment, when arranging and adjusting the position of the steel plates, both output ends of the dual-axis motor 260 drive the worm gear 270 to rotate. The worm gear 270 drives the worm wheel 280 to rotate, causing the shaft 240 to rotate. The rotation of the shaft 240 causes the two L-shaped blocks 230 that are screwed to it to slide in opposite directions along the connecting rod 220. This allows the L-shaped blocks 230 to push the steel plates at both ends of the rectangular frame away from the steel plates on both sides, making it convenient to adjust the welding position of the adjacent steel plates to a butt weld arrangement.

[0047] like Figure 2 and Figure 4 As shown, in this embodiment, the welding mechanism 600 further includes a movable seat 620 that is slidably engaged with the arc-shaped track 610. The movable seat 620 and the arc-shaped track 610 are screwed together and fixed with bolts. An electric push rod capable of driving the laser welding head 630 to move is installed inside the movable seat 620.

[0048] In this embodiment, the movable seat 620 can slide and adjust to different positions along the arc-shaped track 610, so that the laser welding head 630 faces the weld seam. The bolt can fix the movable seat 620 to the adjusted position on the arc-shaped track 610. The extension or shortening of the output end of the electric push rod helps to adjust the laser welding head 630 to a suitable position at the weld seam. The laser welding head 630 welding is a prior art technology, and the specific welding principle will not be described in detail.

[0049] like Figure 1 As shown, in this embodiment, a mounting plate is fixedly connected between the bottoms of the two L-shaped frames 100, and the mounting plate can be fixedly connected to the ground by expansion bolts.

[0050] Example 2, based on Example 1, in order to enable the laser welding head 630 of the welding mechanism 600 to automatically adjust its position to complete fillet weld welding and butt weld welding.

[0051] like Figure 7 and Figure 8 As shown, in this embodiment, a double-headed cylinder 120 is fixed on the outer side of the L-shaped frame 100. Both output ends of the double-headed cylinder 120 are fixedly connected to a transmission frame 121. A positioning shaft 621 is fixedly connected to the top of the movable seat 620. The positioning shaft 621 is slidably connected to the transmission frame 121.

[0052] In this embodiment, refer to Figure 7 When welding steel plates with fillet welds, the laser welding head 630 is directly facing the fillet weld position. Then, as the rectangular frame moves down, the weld position can pass through the laser welding head 630 from bottom to top, thus welding the metal frame plate with fillet welds. This welding method is mainly used for low-voltage switchgear or thinner steel plates, where the structural strength requirements are not high.

[0053] In this embodiment, refer to Figure 8 When welding is required on the steel plate with butt weld seam arrangement, the two output ends of the double-headed cylinder 120 extend, causing the transmission frame 121 to move away from the L-shaped frame 100 along the positioning shaft 621. This causes the positioning shaft 621 to move away from the L-shaped frame 100 along the arc track 610, thereby allowing the laser welding head 630 to weld directly onto the butt weld seam. This welding method is mainly used for high-voltage switchgear or steel plates with high structural strength requirements.

[0054] In this embodiment, an arc-shaped moving block is fixedly connected to one end of the movable seat 620. The moving block is slidably engaged with the inner side of the arc-shaped track 610, so that the movable seat 620 can adjust its position along the arc-shaped track 610 according to the arc trajectory.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-station automatic welding equipment for a switchgear production line, characterized in that, include: Two L-shaped frames (100), with guide rails (110) fixed to the top of the L-shaped frames (100). Two arrangement mechanisms (200) are slidably connected between two guide rails (110). The arrangement mechanism (200) can arrange steel plates into a pattern of butt welds or fillet welds. The arrangement mechanism (200) includes a carrier plate (210). Two connecting rods (220) are fixed at both ends of the carrier plate (210). One end of the connecting rod (220) is slidably connected to an L-shaped block (230). Both ends of the carrier plate (210) are rotatably connected to shafts (240) that drive the L-shaped block (230) to move. A connecting plate (300) is fixed to two carrier plates (210); An electric hoist (400) is used to move up and down with two traction mechanisms (200); The splicing mechanism (500) is fixed to two L-shaped frames (100). The splicing mechanism (500) can splice multiple steel plates into a rectangular frame. Multiple welding mechanisms (600) enable multi-station automatic welding of steel plates. The welding mechanism (600) includes an arc-shaped track (610), and a laser welding head (630) is slidably engaged on the inner side of the arc-shaped track (610).

2. The multi-station automatic welding equipment for switchgear production line according to claim 1, characterized in that, The wire rope on the electric hoist (400) is fixed to one of the carrier plates (210), and both sides of the carrier plate (210) are fixed with sliders (211) that are slidably connected to the guide rail (110).

3. The multi-station automatic welding equipment for switchgear production line according to claim 1, characterized in that, A suction cup (231) is embedded inside the L-shaped block one (230), and an L-shaped block two (232) is fixed to one end of the L-shaped block one (230).

4. The multi-station automatic welding equipment for switchgear production line according to claim 1, characterized in that, The splicing mechanism (500) includes a support frame (510) fixedly connected to two L-shaped frames (100). The support frame (510) is fixed with cylinders (520) that can drive the steel plate to move, and cylinders (530) for supporting the steel plate are fixed with cylinders (530) on all four sides of the support frame (510).

5. The multi-station automatic welding equipment for switchgear production line according to claim 4, characterized in that, The output end of cylinder three (530) is fixed with a support plate (531) that can support the steel plate, and the support plate (531) is slidably connected to the support frame (510).

6. The multi-station automatic welding equipment for switchgear production line according to claim 1, characterized in that, The arrangement mechanism (200) also includes two fixed seats (250) that are fixed to the carrier plate (210), and the shaft (240) is rotatably connected to the fixed seats (250).

7. The multi-station automatic welding equipment for switchgear production line according to claim 6, characterized in that, A dual-axis motor (260) is fixed at the bottom of the carrier plate (210). The two output ends of the dual-axis motor (260) drive the corresponding shaft (240) to rotate. The two ends of the shaft (240) are respectively screwed into the corresponding L-shaped block (230).

8. The multi-station automatic welding equipment for switchgear production line according to claim 7, characterized in that, The two output ends of the dual-shaft motor (260) are fixed with connecting shafts. One end of the connecting shaft is fixed with a worm (270), and the outside of the shaft (240) is fixed with a worm wheel (280) that meshes with the worm (270) for transmission.

9. The multi-station automatic welding equipment for switchgear production line according to claim 1, characterized in that, The welding mechanism (600) also includes a movable seat (620) that is slidably engaged with the arc-shaped track (610). The movable seat (620) and the arc-shaped track (610) are screwed together and fixed with bolts. An electric push rod capable of driving the laser welding head (630) to move is installed inside the movable seat (620).

10. The multi-station automatic welding equipment for switchgear production line according to claim 1 or 9, characterized in that, A double-headed cylinder (120) is fixed on the outside of the L-shaped frame (100), and a transmission frame (121) is fixed on both output ends of the double-headed cylinder (120) to drive the moving seat (620) to move along the arc track (610).

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