Multi-station automatic welding equipment for switch cabinet production line

Abstract

The invention relates to the technical field of switch cabinet production welding, in particular to switch cabinet production line multi-station automatic welding equipment which comprises two L-shaped frames, guide rails are fixedly connected to the tops of the L-shaped frames, two arranging mechanisms are slidably arranged between the two guide rails, and each arranging mechanism comprises a carrier plate; the two ends of the carrying plate are each fixedly connected with two connecting rods, and one end of each connecting rod is slidably connected with a first L-shaped block used for adsorbing and fixing the steel plate. According to the welding device, a plurality of first L-shaped blocks on the arranging mechanism abut against the periphery of the inner side of the rectangular plate frame, the first L-shaped blocks can push steel plates at the two ends of the rectangular plate frame outwards, the welding positions of the adjacent steel plates are adjusted to be in a butt welding seam or fillet welding seam mode, and the arranging mechanism drives the rectangular plate frame to move downwards to the welding mechanism to complete welding; therefore, the steel plates are automatically spliced into a rectangular plate frame pattern and are automatically welded according to fillet welds or butt welds as required.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinet production welding, in particular to multi-station automatic welding equipment for a switch cabinet production line. Background Art

[0002] Switchgear is an electrical device used to distribute, control, and protect electrical energy in power systems. It is typically composed of a metal casing (e.g., steel plate) and internal electrical components (e.g., circuit breakers, disconnectors, etc.). The metal casing consists of a rectangular metal frame and front and rear baffles. Larger metal frames typically require multiple steel plates to be spliced and welded. There are two main methods for splicing and welding: butt welds and fillet welds. Butt welds are primarily used for welding thick steel plates on high-voltage distribution cabinets, which require higher structural strength. Fillet welds are primarily used for welding thin steel plates on low-voltage distribution cabinets, which require lower structural strength. Commonly used welding equipment generally uses a robot with a laser welding head to automatically weld steel plates. Although this type of equipment can replace manual welding to improve welding efficiency, it cannot automatically arrange the position of steel plates and switch welding methods according to the different requirements of high and low voltage switchgear for welding structure strength during welding, so as to complete butt welds or fillet welds between two steel plates. In addition, manual picking and placement of steel plates and splicing and fixing of steel plates are usually required before welding, resulting in a low degree of automation. Summary of the Invention

[0003] The object of the present invention is to provide a multi-station automatic welding device for a switch cabinet production line to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A multi-station automatic welding equipment for a switch cabinet production line, comprising: Two L-shaped frames, with guide rails fixed on top of the L-shaped frames; Two arrangement mechanisms are slidably connected between the two guide rails. The arrangement mechanisms can arrange the steel plates into a butt weld or fillet weld pattern. The arrangement mechanisms include 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, and both ends of the carrier plate are rotatably connected to a shaft that drives the L-shaped block to move. Connecting plate, fixed to two carrier plates; Electric hoist, used to move up and down with the traction of the two marshaling mechanisms; A splicing mechanism, fixed to the two L-shaped frames, capable of splicing multiple steel plates into a rectangular plate frame pattern; Multiple welding mechanisms are used to realize multi-station automatic welding of steel plates. The welding mechanisms include arc-shaped tracks, and a laser welding head is slidably engaged on the inner side of the arc-shaped tracks.

[0005] The invention further comprises: a steel wire rope on the electric hoist is fixed to one of the carrier plates, and sliders slidably connected to the guide rails are fixed on both sides of the carrier plate.

[0006] Furthermore, a suction cup is embedded in the interior of the L-shaped block 1, and an L-shaped block 2 is fixed to one end of the L-shaped block 1.

[0007] Furthermore, the splicing mechanism includes a support frame fixedly connected to two L-shaped frames, and cylinders 2 capable of driving the steel plates to move are fixed on all four sides of the support frame, and cylinders 3 for supporting the steel plates are fixed on all four sides of the support frame.

[0008] Furthermore, a supporting plate capable of supporting the steel plate is fixed to the output end of the cylinder three, and the supporting plate is slidably connected to the support frame.

[0009] Furthermore, the arrangement mechanism further includes two fixing seats both fixed to the carrier plate, and the shaft is rotatably connected to the fixing seats.

[0010] Furthermore, a dual-axis motor is fixed to the bottom of the carrier plate, and two output ends of the dual-axis motor respectively drive the shafts at corresponding positions to rotate, and two ends of the shafts are respectively screwed and connected to the L-shaped blocks at corresponding positions.

[0011] Furthermore, a connecting shaft is fixed to both output ends of the dual-shaft motor, a worm is fixed to one end of the connecting shaft, and a worm wheel meshing with the worm is fixed to the outer side of the shaft.

[0012] Furthermore, the welding mechanism also includes a movable seat that is slidably engaged with the arc track, a bolt is screwed and fixed between the movable seat and the arc track, and an electric push rod that can drive the laser welding to move is installed inside the movable seat.

[0013] Furthermore, a double-headed cylinder is fixed on the outer side of the L-shaped frame, and a transmission frame for driving the movable seat to move along the arc track is fixed on both output ends of the double-headed cylinder.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. A layout mechanism is slidably connected between two guide rails. Four steel plates are spliced into a rectangular plate frame by a splicing mechanism and surrounded outside the layout mechanism. Multiple L-shaped blocks I on the layout mechanism can simultaneously expand outwards to push the steel plates. According to requirements, the welded joints of the edges of adjacent two steel plates can be adjusted to the welded state of butt welds or fillet welds. Then, multiple existing technology suction cups on the L-shaped blocks I can adsorb and fix the steel plates after position adjustment on the layout mechanism. The layout mechanism moves the multiple steel plates in the form of a rectangular plate frame down to the position of the welding mechanism, and the welding mechanism can automatically weld adjacent two steel plates, thereby realizing automatic welding by adjusting the steel plates into the form of butt welds or fillet welds according to requirements, meeting the welding needs of high and low voltage switch cabinets.

[0015] 2. A support frame is fixed between two guide rails. The four sides of the support frame are in the shape of a C. And a support plate is slidably connected below the C-shaped part of the support frame. The space between the support plate and the C-shaped part of the support frame is convenient for storing multiple steel plates to be welded. When splicing the steel plates into the form of a rectangular plate frame, the output end of the cylinder II can push the circular plate to push the steel plates, enabling the steel plates arranged around the support frame to be automatically spliced into the form of a rectangular frame plate. At the same time, under the push of multiple cylinders II, the rectangular frame plate as a whole can abut against multiple L-shaped blocks I, prompting multiple suction cups on the L-shaped blocks I to initially fix the spliced rectangular plate frame, thereby realizing the automatic splicing of the rectangular metal plate frame, eliminating manual picking up, placing and splicing of steel plates, and being beneficial to improving the efficiency of automatic splicing of steel plates.

[0016] 3. By setting two layout mechanisms (denoted as the upper layout mechanism and the lower layout mechanism), the two layout mechanisms can successively pass through the splicing mechanism from top to bottom and fix a rectangular plate frame. When the lower layout mechanism moves down through the welding mechanism to complete welding, the upper layout mechanism can synchronously drop to the middle of the splicing mechanism to fix another rectangular plate frame, thereby realizing that one of the two layout mechanisms welds with a rectangular plate frame, and the other layout mechanism can fix another rectangular plate frame for standby welding, achieving the effect of cyclic feeding and welding. After the metal plate frame is welded, the suction cups can release the metal plate frame, enabling the metal plate frame to automatically fall under its own gravity, eliminating manual picking up and placing of the welded metal plate frame, and being beneficial to improving the efficiency of welding and blanking of the metal plate frame of the switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present invention and the steel plate; Figure 2 is the structural schematic diagram of the layout mechanism moving down in the present invention; Figure 3 is the structural schematic diagram of the layout mechanism releasing the rectangular metal plate frame in the present invention; Figure 4 is the overall structural schematic diagram outside the guide rail in the present invention; Figure 5 It is a schematic diagram of the splicing mechanism structure of the present invention; Figure 6 It is a schematic diagram of the arrangement mechanism and the connecting plate structure of the present invention; Figure 7 This is a schematic structural diagram of the fillet weld state of the welding mechanism in the present invention; Figure 8 It is a structural diagram of the butt weld state of the welding mechanism in the present invention.

[0018] In the figure: 100, L-shaped frame; 110, guide rail; 120, double-headed cylinder; 121, transmission frame; 200, arranging 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; 280, worm gear; 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, support plate; 600, welding mechanism; 610, curved track; 620, moving seat; 621, positioning axis; 630, laser welding head. DETAILED DESCRIPTION

[0019] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] For example 1, please refer to Figure 1 - Figure 8In an embodiment of the present invention, a multi-station automatic welding device for a switch cabinet production line includes two L-shaped frames 100, the top of the L-shaped frame 100 is fixedly connected to a guide rail 110, and two arrangement mechanisms 200 are slidably arranged between the two guide rails 110. The arrangement mechanism 200 includes a carrier plate 210, both ends of the carrier plate 210 are fixedly connected to two connecting rods 220, one end of the connecting rod 220 is slidably connected to an L-shaped block 230 for adsorbing and fixing the steel plate, and both ends of the carrier plate 210 are rotatably connected to a shaft 240 that drives the L-shaped block 230 to move, and the two carrier plates 210 are fixedly connected. There is a connecting plate 300, and an electric hoist 400 is arranged above the arranging mechanism 200. The electric hoist 400 is used to pull the two arranging mechanisms 200 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 plate frame pattern. 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 track 610 fixedly connected to the L-shaped frame 100, and a laser welding head 630 is slidably clamped on the inner side of the arc track 610.

[0021] Specifically, by fixing a splicing mechanism 500 between the two guide rails 110, the splicing mechanism 500 can automatically splice the four steel plates into a rectangular plate frame instead of manual labor, and push the spliced rectangular plate frame to the position of the arrangement mechanism 200. The arrangement mechanism 200 is abutted against the inner sides of the rectangular plate frame through multiple L-shaped blocks 230. The L-shaped blocks 230 can push the steel plates at both ends of the rectangular plate frame outward, prompting the welding positions of adjacent steel plates to be adjusted to the pattern of butt welds or fillet welds, meeting the welding requirements of high and low voltage switchgear and thick and thin steel plates. The rectangular plate frame is moved downward by the arrangement mechanism 200 through multiple welding mechanisms 600. Multiple welding mechanisms 600 simultaneously weld different positions of the rectangular plate frame from different positions, thereby realizing automatic splicing of the steel plates into a rectangular plate frame pattern and automatic welding according to fillet welds or butt welds as needed, meeting the welding needs of high and low voltage switchgear while improving the efficiency of switchgear welding.

[0022] 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, and sliders 211 slidingly connected to the guide rail 110 are fixed on both sides of the carrier plate 210.

[0023] In this embodiment, in the initial state, refer to Figure 1The electric hoist 400 pulls the two arrangement mechanisms 200, and the lower arrangement mechanism 200 arranges the rectangular plate frame on the splicing mechanism 500, and then refers to Figure 2 , the electric hoist 400 releases the wire rope, the upper weaving mechanism 200 moves down to the splicing mechanism 500 position to weave another rectangular plate frame, the lower weaving mechanism 200 moves down through multiple welding mechanisms 600, so that the metal plate frame on the lower weaving mechanism 200 is completed by laser welding, and then refer to Figure 3 , the lower arrangement mechanism 200 releases the welded metal plate frame, and finally the upper arrangement mechanism 200 moves down again with another rectangular plate frame to pass through the welding mechanism 600 for welding and releases the welded metal plate frame.

[0024] In this embodiment, the electric hoist 400 is a component of the existing technology, and its working principle will not be elaborated. 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 manipulators to move the laser welding head 630 with multiple degrees of freedom for welding. 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.

[0025] like Figure 6 As shown, in this embodiment, the interior of the L-shaped block 230 is embedded with a suction cup 231 of the prior art, 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 position of the four sides of the rectangular plate frame, the two vertical sides of the L-shaped block 230 can be abutted against the inner sides of the steel plates in different positions, and then the suction cups 231 can work to adsorb and fix the steel plates on the outside of the L-shaped block 230. Multiple L-shaped blocks 230 work together to fix the rectangular metal plate frame.

[0026] like Figure 4-6 As shown, in this embodiment, an L-shaped block 232 is fixed to one end of the two L-shaped blocks 230 that are close to each other, and an L-shaped block 3 233 is 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 the two L-shaped frames 100, and a cylinder 2 520 capable of driving the steel plate to move is fixed on all four sides of the support frame 510. A cylinder 3 530 for supporting the steel plate is fixed on all four sides of the support frame 510, and a support plate 531 capable of supporting the steel plate is fixed to the output end of the cylinder 3 530, and the support plate 531 is slidably connected to the support frame 510.

[0027] In this embodiment, during the up and down movement of the upper and lower position arrangement mechanism 200, the L-shaped block two 232 and the L-shaped block three 233 can be alternately arranged around the inner side of the support frame 510, and at the same time, the support plate 531 is supported on the bottom of the steel plate, so that the spare steel plates arranged in a row 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 the cylinder three 530 moves outward with the support plate 531 by the thickness of a 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.

[0028] like Figure 4 and Figure 5 As shown, in this embodiment, the bottom of each of the four sides of the support frame 510 is fixedly connected with a fixed block 511 that is slidably connected to the corresponding position support plate 531, and the cylinder two 520 and the cylinder three 530 are both embedded and fixed with the L-shaped frame 100. The output end of the cylinder two 520 is fixedly connected with a circular plate 521. When it is necessary to move the steel plate to a position in contact with the L-shaped block one 230, the output end of the cylinder two 520 can be used to push the steel plate with the circular plate 521, so that the steel plate moves toward the outside of the L-shaped block one 230, prompting the suction cup 231 on the L-shaped block one 230 to be adsorbed on the fixed steel plate.

[0029] like Figure 6 As shown, in this embodiment, the arrangement mechanism 200 also includes two fixed seats 250, both of which are fixedly connected to the carrier plate 210, the shaft 240 is rotatably connected to the fixed seats 250, and a dual-axis motor 260 is fixed to the bottom of the carrier plate 210. Both output ends of the dual-axis motor 260 are fixed with connecting shafts, one end of the connecting shaft is fixed with a worm 270, and the outer side of the shaft 240 is fixed with a worm wheel 280 that meshes with the worm 270 for transmission, and the two ends of the shaft 240 are respectively screwed together with the corresponding position L-shaped block 230.

[0030] In this embodiment, when arranging and adjusting the position of the steel plate, the two output ends of the dual-axis motor 260 both drive the worm 270 to rotate, and the worm 270 drives the worm wheel 280 to rotate to rotate the shaft 240. The rotation of the shaft 240 causes the two relatively positioned L-shaped blocks 230 that are screwed with it to slide in opposite directions along the connecting rod 220, so that the L-shaped block 230 can push the steel plates at both ends of the rectangular plate 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 state.

[0031] like Figure 2 and Figure 4 As shown, in this embodiment, the welding mechanism 600 also includes a movable seat 620 that is slidably engaged with the arc track 610, and bolts are screwed and fixed between the movable seat 620 and the arc track 610. An electric push rod that can drive the laser welding head 630 to move is installed inside the movable seat 620.

[0032] In this embodiment, the movable seat 620 can be slid and adjusted to different positions along the arc track 610, so that the laser welding head 630 is oriented towards the welding seam position. The bolts can fix the movable seat 620 at the adjusted position on the arc track 610. The output end of the electric push rod is extended or shortened, which helps to adjust the laser welding head 630 to a position suitable for the weld seam. The welding of the laser welding head 630 is an existing technology, and the specific welding principle will not be described in detail.

[0033] 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 via expansion bolts.

[0034] Embodiment 2, based on embodiment 1, is 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.

[0035] like Figure 7 and Figure 8 As shown, in this embodiment, a double-headed cylinder 120 is fixed to the outside of the L-shaped frame 100, and the two output ends of the double-headed cylinder 120 are fixedly connected to the transmission frame 121. The top of the movable seat 620 is fixedly connected to the positioning shaft 621, and the positioning shaft 621 is slidably connected to the transmission frame 121.

[0036] In this embodiment, referring to Figure 7 When welding the steel plates with corner welds, the laser welding head 630 is facing the corner weld position. Then, during the downward movement of the rectangular plate frame, the weld position can pass through the laser welding head 630 from bottom to top, thereby realizing the welding of the metal frame plate with corner welds. This welding method is mainly used for low-voltage switchgear or thinner steel plates, and does not require high structural strength.

[0037] In this embodiment, referring to Figure 8 When it is necessary to weld the steel plates arranged with butt welds, the two output ends of the double-headed cylinder 120 extend to make the transmission frame 121 move with the positioning shaft 621 in the direction away from the L-shaped frame 100, so that the positioning shaft 621 moves with the moving seat 620 along the arc track 610 away from the L-shaped frame 100, and then the laser welding head 630 is welded directly at the position of the butt weld, so as to realize the welding of the metal frame plate arranged with butt welds. This welding method is mainly used for high-voltage switchgear or later steel plates, which have higher requirements on structural strength.

[0038] In this embodiment, one end of the moving base 620 is fixedly connected to an arc-shaped moving block, and the moving block is slidably engaged with the inner side of the arc track 610, so that the moving base 620 can adjust its position along the arc track 610 according to the arc trajectory.

[0039] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A multi-station automatic welding equipment for a switch cabinet production line, characterized in that: include: Two L-shaped frames (100), with guide rails (110) fixed to the tops of the L-shaped frames (100); Two arrangement mechanisms (200) are slidably connected between the two guide rails (100). The arrangement mechanism (200) can arrange the steel plates into a butt weld or fillet weld pattern. 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 a shaft (240) that drives the L-shaped block (230) to move. A connecting plate (300) fixed to the two carrier plates (210); An electric hoist (400) is used to pull the two arrangement mechanisms (200) up and down; A splicing mechanism (500) is fixed to the two L-shaped frames (100), and the splicing mechanism (500) is capable of splicing multiple steel plates into a rectangular plate frame pattern; A plurality of welding mechanisms (600) are used to realize multi-station automatic welding of steel plates. The welding mechanism (600) comprises 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 switch cabinet production line according to claim 1 is characterized in that: The steel wire rope on the electric hoist (400) is fixed to one of the carrier plates (210), and sliders (211) slidably connected to the guide rails (110) are fixed on both sides of the carrier plate (210).

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

4. The multi-station automatic welding equipment for switch cabinet 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), a second cylinder (520) capable of driving the steel plate to move is fixed on all four sides of the support frame (510), and a third cylinder (530) for supporting the steel plate is fixed on all four sides of the support frame (510).

5. The multi-station automatic welding equipment for switch cabinet production line according to claim 4 is characterized in that: A supporting plate (531) capable of supporting the steel plate is fixed to the output end of the third cylinder (530), and the supporting plate (531) is slidably connected to the support frame (510).

6. The multi-station automatic welding equipment for switch cabinet production line according to claim 1, characterized in that: The arrangement mechanism (200) further comprises two fixing seats (250) both fixed to the carrier plate (210), and the shaft (240) is rotatably connected to the fixing seats (250).

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

8. The multi-station automatic welding equipment for switch cabinet production line according to claim 7, characterized in that: A connecting shaft is fixed to both output ends of the dual-axis motor (260), a worm (270) is fixed to one end of the connecting shaft, and a worm wheel (280) meshing with the worm (270) is fixed to the outside of the shaft (240).

9. The multi-station automatic welding equipment for switch cabinet production line according to claim 1, characterized in that: The welding mechanism (600) further comprises a movable seat (620) slidably engaged with the arc track (610), a bolt being screwed and fixed between the movable seat (620) and the arc track (610), and an electric push rod capable of driving the laser welding member (630) to move is installed inside the movable seat (620).

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

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