A laser welding device for membrane structure carport production

Abstract

The application relates to the technical field of laser welding, in particular to a laser welding device for film structure carport production, which comprises a frame body, a plate adding mechanism, a plate pushing mechanism, an inclined synchronous mechanism and an inclined plate placing mechanism, the outer walls on the two sides of the frame body are fixedly connected with welding supports, the inner walls of the two welding supports are provided with laser welding guns, the top of a transmission belt is provided with a steel beam body, and the top outer wall of the frame body is fixedly connected with a cross beam. The inclined synchronous mechanism can position the inclination angle at any time, and the plate placing mechanism can rotate at the same angle as the inclined synchronous mechanism when the plate is placed, so that the supporting plate can still closely adhere to the outer wall when being welded at the arc-shaped range of the steel beam body. After the welding is completed, the positioning seat is reset through the abutting of the abutting rod and the inclined sliding groove, and the positioning seat will naturally return to the state of being flush with the added plate pushing mechanism during the upward movement. The device is suitable for the welding of the steel beam body with any curved angle, and the precision of the supporting plate welding is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser welding, and in particular to a laser welding device for membrane structure carport production. BACKGROUND

[0002] The membrane structure carport is light in self weight, has good stress characteristics and becomes one of main forms of large-span space structures. The planning and construction of the carport become important parts of modern city planning and will become more and more important in future construction. The membrane structure carport is a kind of building of a space structure form which is covered by a plurality of high-strength film materials and reinforcing members (steel frames, steel columns or steel cables) and has a certain pre-tension stress in the interior to form a certain space shape and can bear certain external load.

[0003] The existing technology still has some problems in the welding of the steel beam of the membrane structure carport. The steel beam is generally in a shape with a vertical bottom and a gradually curved top. Support plates need to be welded at a distance on both sides of the steel beam to improve the stability. However, when the support plates are welded at the curved part, the angle needs to be manually found so that the support plates can fit the curvature of the steel beam. The welding of the support plates on both sides needs to be done, and the uniformity and accuracy of the welding of the support plates on both sides cannot be guaranteed. Therefore, the laser welding device for membrane structure carport production is proposed to solve the above problems. SUMMARY

[0004] The purpose of the application is to solve the problems in the background art and provide a laser welding device for membrane structure carport production.

[0005] In order to achieve the above purpose, the application adopts the following technical scheme:

[0006] The laser welding device for membrane structure carport production comprises a frame body, two transmission rollers are rotationally connected to the inner wall of the frame body, the outer wall of the two transmission rollers is sleeved with a transmission belt, the inner side of the transmission belt is provided with a bearing seat, the bearing seat is fixedly connected with the frame body, the outer wall of the frame body is fixedly connected with a driving motor one, the output shaft of the driving motor one is fixedly connected with one of the transmission rollers, the outer walls of both sides of the frame body are fixedly connected with welding supports, the inner walls of the two welding supports are provided with laser welding guns, the top outer wall of the frame body is fixedly connected with two center limiting plates, the top of the transmission belt is provided with a steel beam body, the top outer wall of the frame body is fixedly connected with a cross beam, the inner wall of the cross beam is slidingly connected with a mounting rod, the inner wall of the mounting rod is fixedly connected with a second motor, the output shaft of the second motor is fixedly connected with a second bevel gear, and the laser welding device further comprises:

[0007] A plate adding mechanism is arranged on the mounting rod to feed the support plates to be welded.

[0008] The plate pushing mechanism is used to cooperate with the plate adding mechanism. The support plate to be welded is placed on the steel beam body, and the plate pushing mechanism is installed on the plate adding mechanism.

[0009] The tilt synchronization mechanism is used to fit the curvature of the outer wall of the steel beam body, and the tilt synchronization mechanism is installed on the mounting rod;

[0010] And the inclined plate placing mechanism can be consistent with the angle of the inclined synchronization mechanism when it is extended in conjunction with the pushing plate mechanism, and can be restored to be parallel to the beam when it is retracted, so as to facilitate the adding of plates by the adding plate mechanism. The inclined plate placing mechanism is installed on the pushing plate mechanism.

[0011] Preferably, the adding plate mechanism includes a threaded rod, an adding piece push plate, a first bevel gear, a connecting bracket, a support seat, a limiting rod and a slider, the first bevel gear is meshed with the second bevel gear, the threaded rod is fixedly connected to the first bevel gear through a set shaft, the slider is threadedly connected to the threaded rod, the connecting bracket is fixedly connected to the slider, the adding piece push plate is fixedly connected to the connecting bracket, the support seat is fixedly connected to the mounting rod, the limiting rod is fixedly connected to the mounting rod, and the slider is slidably connected to the limiting rod.

[0012] Preferably, the adding plate mechanism also includes a storage box, a pushing slide, a first spring and two guide plates. The storage box is fixedly connected to the mounting rod, the pushing slide is slidingly connected to the inner wall of the storage box, the first spring is fixedly connected between the pushing slide and the storage box, and the two guide plates are fixedly connected to the outer wall of the storage box.

[0013] Preferably, the pushing plate mechanism includes a positioning rod, a positioning seat, a clamping seat, a second spring, a support plate, two clamping springs and two clamping plates, the positioning seat is slidingly connected to the inner wall of the support seat, the second spring is fixedly connected between the positioning seat and the mounting rod, the positioning rod is fixedly connected to the positioning seat, the clamping seat is rotatably connected to the positioning seat through a set shaft, the two clamping plates are slidingly connected to the inner wall of the clamping seat, the two clamping plates are symmetrically distributed, the two clamping springs are respectively fixedly connected between the two clamping plates and the clamping seat, and the support plate is arranged between the two clamping plates.

[0014] Preferably, the tilt synchronization mechanism includes a transmission shaft, an obstruction ring plate, a baffle, a rotating bracket and two positioning wheels, the baffle is fixedly connected to the mounting rod, the transmission shaft is rotatably connected to the mounting rod, the obstruction ring plate is fixedly connected to the transmission shaft, the rotating bracket is fixedly connected to the transmission shaft, and both positioning wheels are rotatably connected to the rotating bracket.

[0015] Preferably, the tilt synchronization mechanism also includes a chain, a fixed rod, a first rotating shaft and two transmission gears, the fixed rod is fixedly connected to the support seat, the first rotating shaft is rotatably connected to the fixed rod, the two transmission gears are respectively fixedly connected to the transmission shaft and the first rotating shaft, and the chain is sleeved on the outer walls of the two transmission gears.

[0016] Preferably, the tilting plate placement mechanism includes a connecting rod, a reset disk, a mounting disk and two elastic ropes, the connecting rod is fixedly connected to the reset disk, the end of the connecting rod away from the reset disk is fixedly connected to the fixed rod, the mounting disk is fixedly connected to the first rotating shaft, and the two elastic ropes are fixedly connected to the mounting disk.

[0017] Preferably, the tilting plate placing mechanism also includes a second mounting plate, two resistance rods and two inclined slide grooves. The second mounting plate is fixedly connected to the clamping seat through an arranged shaft rod, and the two resistance rods are distributed in a circular array. The two resistance rods are fixedly connected to the second mounting plate, and the two inclined slide grooves are opened at the bottom of the reset plate, and the two inclined slide grooves are distributed in a circular array.

[0018] Preferably, there are two of each of the plate adding mechanism, the plate pushing mechanism, the tilt synchronization mechanism and the tilt plate placing mechanism.

[0019] Compared with the existing technology, the present invention has the following beneficial effects:

[0020] The present invention can always locate the inclination angle through the tilt synchronization mechanism, and at the same time cooperate with the tilt plate placement mechanism, which can rotate to the same angle as the tilt synchronization mechanism when placing the plate, ensuring that the support plate can still be close to the outer wall when welding in the arc range of the steel beam body. After the welding is completed, the positioning seat will be reset through the resistance rod and the inclined slide groove, and will naturally return to a state flush with the added push plate during the upward movement. This device is suitable for welding steel beam bodies with any bending angle, ensuring the accuracy of support plate welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the material storage box of the present invention;

[0023] Figure 3 This invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 4 This invention Figure 2 A schematic diagram of the partially enlarged structure at point B in the middle;

[0025] Figure 5 This invention Figure 2 A schematic diagram of the partially enlarged structure at point C in the middle;

[0026] Figure 6 is the structure schematic diagram of the plate adding mechanism and the plate placing mechanism of the present application;

[0027] Figure 7 is the structure schematic diagram of the tilt synchronous mechanism and the tilt plate placing mechanism of the present application;

[0028] Figure 8 is the structure schematic diagram of the inside of the clamping plate of the present application;

[0029] Figure 9 is the structure schematic diagram of the inside of the clamping plate of the present application; Figure 8 is the structure schematic diagram of the inside of the clamping plate of the present application;

[0030] In the figure: 1, welding support; 2, frame body; 3, center limiting plate; 4, steel beam body; 5, bearing seat; 6, transmission roller; 7, transmission belt; 8, laser welding gun; 9, storage box; 10, cross beam; 11, mounting rod; 12, driving motor one; 13, pushing slide plate; 14, positioning rod; 15, positioning seat; 16, threaded rod; 17, transmission shaft rod; 18, transmission gear; 19, chain; 20, adding piece pushing plate; 21, blocking ring plate; 22, baffle; 23, rotating support; 24, first spring; 25, guide plate; 26, clamping seat; 27, second spring; 28, first bevel gear; 29, second bevel gear; 30, second motor; 31, connecting support; 32, support plate; 33, connecting rod; 34, elastic rope; 35, reset disc; 36, support seat; 37, limiting rod; 38, fixed rod; 39, sliding block; 40, first rotating shaft; 41, positioning wheel; 42, clamping spring; 43, clamping plate; 44, mounting disc two; 45, abutting rod; 46, inclined chute; 47, mounting disc one; 101, plate adding mechanism; 202, pushing plate mechanism; 303, tilt synchronous mechanism; 404, tilt plate placing mechanism. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] With reference to Figure 1 -Figure 9 The utility model provides a kind of laser welding device for membrane structure carport production, including frame body 2, the inner wall of frame body 2 is rotatably connected with two transmission rollers 6, the outer wall of two transmission rollers 6 is equipped with transmission belt 7, the inner side of transmission belt 7 is provided with bearing seat 5, bearing seat 5 is fixedly connected with frame body 2, the outer wall of frame body 2 is fixedly connected with drive motor one 12, the output shaft of drive motor one 12 is fixedly connected with one of transmission roller 6, the outer wall of both sides of frame body 2 is fixedly connected with welding support 1, the inner wall of two welding supports 1 is provided with laser welding gun 8, the top outer wall of frame body 2 is fixedly connected with two center limit plates 3, the top of transmission belt 7 is provided with steel beam body 4, the top outer wall of frame body 2 is fixedly connected with crossbeam 10, the inner wall of crossbeam 10 is slidably connected with mounting rod 11, the inner wall of mounting rod 11 is fixedly connected with second motor 30, the output shaft of second motor 30 is fixedly connected with second bevel gear 29, further comprising:

[0034] Plate adding mechanism 101 is used to feed the support plate to be welded, and plate adding mechanism 101 is installed on mounting rod 11;

[0035] Push plate mechanism 202 is used to cooperate with plate adding mechanism 101, and the support plate to be welded is placed on steel beam body 4, and push plate mechanism 202 is installed on plate adding mechanism 101;

[0036] Inclined synchronous mechanism 303 is used to match the arc of the outer wall of steel beam body 4, and inclined synchronous mechanism 303 is installed on mounting rod 11;

[0037] And inclined plate placing mechanism 404 cooperates with push plate mechanism 202 to extend and be consistent with the angle of inclined synchronous mechanism 303, and is restored to parallel with crossbeam 10 when retracting, so that plate adding mechanism 101 can add plates, and inclined plate placing mechanism 404 is installed on push plate mechanism 202.

[0038] Among them, plate adding mechanism 101 includes threaded rod 16, adding piece push plate 20, first bevel gear 28, connecting bracket 31, support seat 36, limiting rod 37 and sliding block 39, first bevel gear 28 is engaged with second bevel gear 29, threaded rod 16 is fixedly connected with first bevel gear 28 through the shaft rod, sliding block 39 is threadedly connected with threaded rod 16, connecting bracket 31 is fixedly connected with sliding block 39, adding piece push plate 20 is fixedly connected with connecting bracket 31, support seat 36 is fixedly connected with mounting rod 11, limiting rod 37 is fixedly connected with mounting rod 11, and sliding block 39 is slidably connected with limiting rod 37.

[0039] The plate adding mechanism 101 further comprises a storage box 9, a pushing slide plate 13, a first spring 24 and two guide plates 25, the storage box 9 is fixedly connected with the mounting rod 11, the pushing slide plate 13 is slidably connected with the inner wall of the storage box 9, the first spring 24 is fixedly connected between the pushing slide plate 13 and the storage box 9, and the two guide plates 25 are fixedly connected with the outer wall of the storage box 9.

[0040] In the embodiment, when in use, the driving motor one 12 is intermittently rotated, and one support plate 32 is welded on each side of the steel beam body 4 each time the driving motor one 12 stops. First, the steel beam body 4 is placed between the two center limiting plates 3 to ensure the accurate position of the steel beam body 4, and the two positioning wheels 41 are arranged to be tightly attached to the outer wall of the steel beam body 4. When the positioning wheels 41 move along the vertical range of the steel beam body 4, the driving motor one 12 stops rotating, the second motor 30 drives the second bevel gear 29 to start rotating, the first bevel gear 28 drives the threaded rod 16 to rotate, the sliding block 39 drives the connecting bracket 31 and the adding piece pushing plate 20 to move towards the mounting rod 11, and the storage box 9 is provided with a plurality of support plates 32. Therefore, the inclined surface of the adding piece pushing plate 20 pushes the first support plate 32 into the two clamping plates 43 in the clamping seat 26, so that the first support plate 32 is elastically clamped by the two clamping springs 42.

[0041] The pushing plate mechanism 202 comprises a positioning rod 14, a positioning seat 15, a clamping seat 26, a second spring 27, a support plate 32, two clamping springs 42 and two clamping plates 43. The positioning seat 15 is slidably connected with the inner wall of the support seat 36, the second spring 27 is fixedly connected between the positioning seat 15 and the mounting rod 11, the positioning rod 14 is fixedly connected with the positioning seat 15, the clamping seat 26 is rotatably connected with the positioning seat 15 through a shaft rod, the two clamping plates 43 are slidably connected with the inner wall of the clamping seat 26, the two clamping plates 43 are symmetrically distributed, the two clamping springs 42 are fixedly connected between the two clamping plates 43 and the clamping seat 26 respectively, and the support plate 32 is arranged between the two clamping plates 43.

[0042] In the embodiment, then the sliding block 39 moves downwards to above the positioning seat 15, and the positioning seat 15 is pressed downwards, so that the positioning seat 15 drives the clamping seat 26 and the clamped support plate 32 to tightly attach to the outer wall of the steel beam body 4 through the positioning rod 14. At this time, the support plate 32 is welded on both sides of the steel beam body 4 by using the laser welding gun 8, and manual alignment of the support plate 32 is not required. Then the second motor 30 is reversed, so that the device is reset, and the driving motor one 12 is waited to stop again, so that new welding of the support plate 32 is performed again, and the first spring 24 in the storage box 9 pushes the next support plate 32.

[0043] The tilt synchronous mechanism 303 comprises a transmission shaft rod 17, an obstacle ring plate 21, a baffle 22, a rotating support 23 and two positioning wheels 41. The baffle 22 is fixedly connected with the mounting rod 11. The transmission shaft rod 17 is rotatably connected with the mounting rod 11. The obstacle ring plate 21 is fixedly connected with the transmission shaft rod 17. The rotating support 23 is fixedly connected with the transmission shaft rod 17. The two positioning wheels 41 are rotatably connected with the rotating support 23.

[0044] The tilt synchronous mechanism 303 further comprises a chain 19, a fixed rod 38, a first rotating shaft 40 and two transmission gears 18. The fixed rod 38 is fixedly connected with the support seat 36. The first rotating shaft 40 is rotatably connected with the fixed rod 38. The two transmission gears 18 are fixedly connected with the transmission shaft rod 17 and the first rotating shaft 40 respectively. The chain 19 is sleeved on the outer walls of the two transmission gears 18.

[0045] In the embodiment, when moving to the arc range of the steel beam body 4, the two positioning wheels 41 are naturally rotated counterclockwise as shown due to the fact that the obstacle ring plate 21 on the rotating support 23 is blocked by the baffle 22, and the support mounting rod 11 is correspondingly moved upward. At this time, the two positioning wheels 41 are still close to the steel beam body 4. At this time, the rotating support 23 moves the first rotating shaft 40 through the transmission shaft rod 17, the transmission gear 18 and the chain 19, and the first rotating shaft 40 moves the mounting disc one 47. Figure 4

[0046] The tilt plate placing mechanism 404 comprises a connecting rod 33, a reset disc 35, a mounting disc one 47 and two elastic ropes 34. The connecting rod 33 is fixedly connected with the reset disc 35. The end of the connecting rod 33, which is away from the reset disc 35, is fixedly connected with the fixed rod 38. The mounting disc one 47 is fixedly connected with the first rotating shaft 40. The two elastic ropes 34 are fixedly connected with the mounting disc one 47.

[0047] The tilt plate placing mechanism 404 further comprises a mounting disc two 44, two abutting rods 45 and two inclined sliding grooves 46. The mounting disc two 44 is fixedly connected with the clamping seat 26 through the arranged shaft rod. The two abutting rods 45 are distributed in a circular array. The two abutting rods 45 are fixedly connected with the mounting disc two 44. The two inclined sliding grooves 46 are arranged on the bottom of the reset disc 35. The two inclined sliding grooves 46 are distributed in a circular array.

[0048] The plate adding mechanism 101, the plate pushing mechanism 202, the tilt synchronous mechanism 303 and the tilt plate placing mechanism 404 are all provided with two.

[0049] ​In this embodiment, after the support plate 32 is pushed into the clamping seat 26 by the accessory pushing plate 20 again, when the positioning seat 15 moves towards the rotating support 23, since the installation disc one 47 is consistent with the rotating direction at the arc range of the steel beam body 4 at this time, when the abutting rod 45 is out of the limitation of the inclined sliding groove 46, after moving downward for a distance, the two elastic ropes 34 will be stretched, and due to the elastic force of the two elastic ropes 34, the reset disc 35 and the installation disc one 47 will be gradually pulled to the same angle by the elastic rope 34, so that the two side outer walls of the support plate 32 can still fit the outer wall of the steel beam body 4 at this time, and after welding is completed, the positioning seat 15 moves upward, the elastic rope 34 is gradually not stretched and becomes relaxed, since the inclined sliding groove 46 is inclined, as long as the abutting rod 45 abuts against the inclined sliding groove 46, the upward movement will naturally return to the state of being flush with the accessory pushing plate 20, facilitating the next time that the accessory pushing plate 20 pushes the support plate 32 into the clamping seat 26, and the device is suitable for welding of the steel beam body 4 with any curved angle, and the precision of the welding of the support plate 32 is ensured.

[0050] The specific working principle and use method of the present application will be explained in detail as follows: when in use, the driving motor one 12 is intermittently rotated, and the driving motor one 12 stops once to weld a support plate 32 on both sides of the steel beam body 4, first, the steel beam body 4 is placed between the two center limiting plates 3 to ensure the accurate position of the steel beam body 4, and at the same time, the two positioning wheels 41 are arranged to be in close contact with the outer wall of the steel beam body 4, when the positioning wheel 41 moves along the vertical range of the steel beam body 4, when the driving motor one 12 stops rotating, the second motor 30 drives the second bevel gear 29 to start rotating, so that the first bevel gear 28 drives the threaded rod 16 to rotate, the sliding block 39 drives the connecting support 31 and the accessory pushing plate 20 to move towards the installation rod 11, and a plurality of support plates 32 are placed in the storage box 9, so that the inclined surface of the accessory pushing plate 20 pushes the first support plate 32 into the two clamping plates 43 in the clamping seat 26, so that it is elastically clamped by the two clamping springs 42.

[0051] Then the sliding block 39 moves downward to the upper side of the positioning seat 15, and the positioning seat 15 is pressed downward, so that the positioning seat 15 drives the clamping seat 26 and the clamped support plate 32 to be in close contact with the outer wall of the steel beam body 4 through the positioning rod 14, at this time, the support plate 32 is welded on both sides of the steel beam body 4 by using the laser welding gun 8, and manual alignment of the support plate 32 is not required. Then the second motor 30 is reversed to reset the device, and the next support plate 32 is pushed in by the first spring 24 in the storage box 9 when the driving motor one 12 stops again for the new support plate 32 welding.

[0052] When the vehicle moves to the arc range of the steel beam body 4, since the blocking ring plate 21 on the rotating bracket 23 is blocked by the baffle 22, the two positioning wheels 41 are squeezed by the outer wall of the steel beam body 4 and naturally move as shown in FIG. Figure 4 As shown, it rotates counterclockwise, and the supporting mounting rod 11 will move up accordingly. At this time, the two positioning wheels 41 are still close to the steel beam body 4. At this time, the rotating bracket 23 drives the first rotating shaft 40 to move through the transmission shaft 17, the transmission gear 18 and the chain 19, and the first rotating shaft 40 drives the mounting plate 47 to move.

[0053] When the adding push plate 20 pushes the support plate 32 into the clamping seat 26 again, the positioning seat 15 moves in the direction close to the rotating bracket 23. At this time, since the mounting plate 1 47 is already in the same rotation direction as the arc range of the steel beam body 4, when the contact rod 45 is released from the restriction of the inclined slide groove 46 and moves down a certain distance, the two elastic ropes 34 will be stretched. Due to the elastic force of the two elastic ropes 34, the reset plate 35 and the mounting plate 1 47 will gradually be pulled to the same angle by the elastic ropes 34, so that the outer walls of the two sides of the support plate 32 are aligned with the The old one can fit the outer wall of the steel beam body 4. After welding is completed, the positioning seat 15 moves up, and the elastic rope 34 is gradually not stretched and becomes relaxed. Since the inclined slide groove 46 is inclined, no matter what the rotation angle of the mounting plate 24 is, as long as the contact rod 45 contacts the inclined slide groove 46, it will naturally return to a state flush with the adding piece push plate 20 during the upward movement, so that the next time the adding piece push plate 20 pushes the support plate 32 into the clamping seat 26, this device is suitable for welding of steel beam bodies 4 with any bending angle, ensuring the accuracy of the welding of the support plate 32.

[0054] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser welding device for producing a membrane structure carport, comprising a frame (2), the inner wall of the frame (2) being rotatably connected to two transmission rollers (6), the outer walls of the two transmission rollers (6) being sleeved with a transmission belt (7), the inner side of the transmission belt (7) being provided with a bearing seat (5), the bearing seat (5) being fixedly connected to the frame (2), the outer wall of the frame (2) being fixedly connected to a drive motor (12), the output shaft of the drive motor (12) being fixedly connected to one of the transmission rollers (6), the outer walls of both sides of the frame (2) being fixedly connected to welding supports The frame (1) is provided with a laser welding gun (8) on the inner walls of the two welding brackets (1), the top outer wall of the frame body (2) is fixedly connected to two center limit plates (3), the top of the transmission belt (7) is provided with a steel beam body (4), the top outer wall of the frame body (2) is fixedly connected to a crossbeam (10), the inner wall of the crossbeam (10) is slidably connected to a mounting rod (11), the inner wall of the mounting rod (11) is fixedly connected to a second motor (30), and the output shaft of the second motor (30) is fixedly connected to a second bevel gear (29), characterized in that Also includes: A plate adding mechanism (101) is used to load the support plate to be welded, and the plate adding mechanism (101) is installed on the mounting rod (11); The plate pushing mechanism (202) is used to cooperate with the plate adding mechanism (101), the support plate to be welded is placed on the steel beam body (4), and the plate pushing mechanism (202) is installed on the plate adding mechanism (101); A tilt synchronization mechanism (303) is used to fit the curvature of the outer wall of the steel beam body (4), and the tilt synchronization mechanism (303) is installed on the installation rod (11); And the inclined plate placing mechanism (404) can be consistent with the angle of the inclined synchronization mechanism (303) when it is extended in conjunction with the pushing plate mechanism (202), and can be restored to be parallel to the beam (10) when it is retracted, so as to facilitate the adding of plates by the adding plate mechanism (101). The inclined plate placing mechanism (404) is installed on the pushing plate mechanism (202).

2. The laser welding device for membrane structure carport production according to claim 1 is characterized in that: The plate adding mechanism (101) comprises a threaded rod (16), a piece adding push plate (20), a first bevel gear (28), a connecting bracket (31), a support seat (36), a limiting rod (37) and a slider (39), wherein the first bevel gear (28) is meshed with the second bevel gear (29), the threaded rod (16) is fixedly connected to the first bevel gear (28) via a provided shaft, the slider (39) is threadedly connected to the threaded rod (16), the connecting bracket (31) is fixedly connected to the slider (39), the piece adding push plate (20) is fixedly connected to the connecting bracket (31), the support seat (36) is fixedly connected to the mounting rod (11), the limiting rod (37) is fixedly connected to the mounting rod (11), and the slider (39) is slidably connected to the limiting rod (37).

3. The laser welding device for membrane structure carport production according to claim 2, characterized in that: The plate adding mechanism (101) further comprises a material storage box (9), a pushing slide (13), a first spring (24) and two guide plates (25); the material storage box (9) is fixedly connected to the mounting rod (11); the pushing slide (13) is slidably connected to the inner wall of the material storage box (9); the first spring (24) is fixedly connected between the pushing slide (13) and the material storage box (9); and the two guide plates (25) are fixedly connected to the outer wall of the material storage box (9).

4. The laser welding device for producing a membrane structure carport according to claim 3, characterized in that: The push plate mechanism (202) includes a positioning rod (14), a positioning seat (15), a clamping seat (26), a second spring (27), a support plate (32), two clamping springs (42) and two clamping plates (43), wherein the positioning seat (15) is slidably connected to the inner wall of the support seat (36), the second spring (27) is fixedly connected between the positioning seat (15) and the mounting rod (11), the positioning rod (14) is fixedly connected to the positioning seat (15), the clamping seat (26) is rotatably connected to the positioning seat (15) via a set shaft, the two clamping plates (43) are slidably connected to the inner wall of the clamping seat (26), the two clamping plates (43) are symmetrically distributed, the two clamping springs (42) are respectively fixedly connected between the two clamping plates (43) and the clamping seat (26), and the support plate (32) is arranged between the two clamping plates (43).

5. The laser welding device for producing a membrane structure carport according to claim 4, characterized in that: The tilt synchronization mechanism (303) comprises a transmission shaft (17), an obstruction ring plate (21), a baffle (22), a rotating bracket (23) and two positioning wheels (41), wherein the baffle (22) is fixedly connected to the mounting rod (11), the transmission shaft (17) is rotationally connected to the mounting rod (11), the obstruction ring plate (21) is fixedly connected to the transmission shaft (17), the rotating bracket (23) is fixedly connected to the transmission shaft (17), and both positioning wheels (41) are rotationally connected to the rotating bracket (23).

6. The laser welding device for producing a membrane structure carport according to claim 5, characterized in that: The tilt synchronization mechanism (303) further includes a chain (19), a fixed rod (38), a first rotating shaft (40) and two transmission gears (18), wherein the fixed rod (38) is fixedly connected to the support seat (36), the first rotating shaft (40) is rotationally connected to the fixed rod (38), the two transmission gears (18) are respectively fixedly connected to the transmission shaft (17) and the first rotating shaft (40), and the chain (19) is sleeved on the outer walls of the two transmission gears (18).

7. The laser welding device for producing a membrane structure carport according to claim 6, characterized in that: The tilting plate placement mechanism (404) comprises a connecting rod (33), a reset disk (35), a mounting disk (47) and two elastic ropes (34), wherein the connecting rod (33) is fixedly connected to the reset disk (35), an end of the connecting rod (33) away from the reset disk (35) is fixedly connected to the fixing rod (38), the mounting disk (47) is fixedly connected to the first rotating shaft (40), and the two elastic ropes (34) are fixedly connected to the mounting disk (47).

8. The laser welding device for producing a membrane structure carport according to claim 7, characterized in that: The tilting plate placement mechanism (404) further includes a second mounting plate (44), two abutting rods (45) and two inclined sliding grooves (46), wherein the second mounting plate (44) is fixedly connected to the clamping seat (26) via a set shaft, the two abutting rods (45) are distributed in a circular array, the two abutting rods (45) are fixedly connected to the second mounting plate (44), and the two inclined sliding grooves (46) are opened at the bottom of the reset plate (35), and the two inclined sliding grooves (46) are distributed in a circular array.

9. The laser welding device for producing a membrane structure carport according to claim 8, characterized in that: The plate adding mechanism (101), the plate pushing mechanism (202), the tilting synchronization mechanism (303) and the tilting plate placing mechanism (404) are each provided with two.

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