Welding device for machining daylighting smoke exhaust skylight

Abstract

The invention discloses a welding device for machining a daylighting and smoke discharging skylight, and relates to the technical field of daylighting and smoke discharging skylight welding. The plurality of placing tables are fixedly connected to the rack; a first profile is arranged on each placing table; second section bars are arranged on the two movable frames; through the process that the two moving frames get close to each other, a second sectional material can be conveyed, meanwhile, even if the first sectional material on the placing table is placed irregularly, the position of the first sectional material can be adjusted through the linkage mechanism, avoiding with the first sectional material is achieved after the position of the first sectional material is adjusted, and therefore interference between the first sectional material and the second sectional material is avoided; besides, the first section bar can be passively clamped and fixed along with the movement of the movable frame, the connection stability between the second section bar and the first section bar is improved, welding operation can be conveniently carried out, and the problem that a skylight frame is welded firstly, so that reinforcing ribs cannot be put into the frame to be welded is also avoided.

Description

Technical Field

[0001] The invention relates to the technical field of lighting and smoke exhaust skylight welding, in particular to a welding device used for processing lighting and smoke exhaust skylights. Background Art

[0002] ‌Lighting and smoke exhaust skylight is a roof ventilation device that integrates lighting and smoke exhaust functions. It is usually installed on the roof of a building. It can effectively improve indoor lighting and ventilation conditions. At the same time, it can quickly exhaust indoor smoke and harmful gases in emergency situations such as fires to ensure the safety of personnel. Lighting and smoke exhaust skylights use transparent or translucent lighting materials (such as PC boards, FRP lighting boards or glass) to make window sashes or rain shields to introduce natural light into the room, reduce the use of artificial lighting, and reduce electricity consumption. It uses the principle of natural ventilation to promote efficient air circulation through the thermal pressure difference and wind pressure difference between indoor and outdoor, improve indoor air quality, and reduce humidity and odor. In emergency situations such as fires, the lighting and smoke exhaust skylight can be quickly opened to form a smoke and heat exhaust channel to exhaust smoke and harmful gases, providing conditions for personnel evacuation and fire rescue.

[0003] For example, the publication number is CN212350848U, the publication date is January 15, 2021, and the name is "Welding device for processing skylights for lighting and smoke exhaust", which includes a feeding mechanism for conveying, a width adjustment mechanism for adjusting the welding spacing of window frames, and a clamping force adjustment mechanism for adapting to window frames of different widths. The width adjustment mechanism is provided at the lower inner end of the feeding mechanism, a clamping mechanism is provided on the width adjustment mechanism, the clamping force adjustment mechanism is provided on one side of the clamping mechanism, and a welding mechanism is provided on the upper side of the clamping mechanism. The utility model utilizes a width adjustment mechanism to adjust the spacing between two groups of outer fixing frames and inner fixing frames to adapt to window frames of different spacings, utilizes a clamping force adjustment mechanism to adjust the spacing between the outer fixing frame and the inner fixing frame to adapt to window frames of different thicknesses, utilizes the cooperation of a feeding mechanism, a clamping mechanism, and a welding mechanism, and utilizes automation for welding, thereby improving processing efficiency.

[0004] In the prior art such as the above patent, when welding a skylight for lighting and smoke exhaust, four profiles are usually welded together to form a rectangular or square skylight frame. However, in actual use, in order to ensure the structural strength of the skylight, it is also necessary to weld reinforcing ribs inside the skylight frame. When welding the reinforcing ribs, since the frame has been welded and the length of the reinforcing ribs is close to the distance between the two inner sides of the frame, it is difficult to place the reinforcing ribs inside the skylight frame. Summary of the invention

[0005] The purpose of the present invention is to provide a welding device for processing a lighting and smoke exhaust skylight to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a welding device for processing a lighting and smoke exhaust skylight, comprising: frame; A plurality of placement tables, which are fixedly connected to the frame; each placement table is provided with a first profile, and both ends of each placement table are provided with a clamping mechanism for clamping and fixing the first profile thereon; Two moving frames are symmetrically slidably connected to the frame; the two moving frames are both provided with a second profile; the two moving frames are both provided with a plurality of linkage mechanisms cooperating with the clamping mechanism; The two moving frames have centering stroke, clamping stroke and welding station when they approach each other; Centering stroke: The two moving frames respectively drive the linkage mechanisms thereon to move synchronously, and each linkage mechanism respectively contacts the end of each first profile, driving each first profile to slide on its corresponding placement table, so that each first profile is located at the center position of its corresponding placement table; Clamping stroke: driving each linkage mechanism to avoid the end of the first profile corresponding to it, and making each clamping mechanism located at both ends of the placement table clamp the first profile on the placement table corresponding to it; Welding station: The side surfaces of the two second profiles are in contact with the ends of the first profiles.

[0007] Furthermore, the linkage mechanism includes a fixed plate fixedly connected to the movable frame, the fixed plate is fixedly connected to a sliding rod, the sliding rod is slidably connected to the frame, the fixed plate is rotatably connected to a rotating plate, a torsion spring is arranged between the rotating plate and the fixed plate, a telescopic plate is transversely slidably connected in the rotating plate, the telescopic plate abuts against the end of the first profile, a first spring is arranged between the telescopic plate and the inner wall of the fixed plate, an oblique groove is opened on the telescopic plate, a lifting rod is vertically slidably connected in the rotating plate, the lifting rod is slidably connected in the oblique groove, a locking plate is fixedly connected to the lifting rod, an arc plate is fixedly connected to the fixed plate, the locking plate passes through the rotating plate and is plugged into the fixed plate, and the end of the locking plate abuts against the arc plate.

[0008] Furthermore, the clamping mechanism includes two rotating shafts fixedly connected to the placing table, and clamping jaws are rotatably connected to the two rotating shafts respectively. A second spring is arranged between the two clamping jaws, and abutment rods are fixedly connected to the two clamping jaws. A lower pressure plate is vertically slidably connected to the frame, and the lower pressure plate is slidably abutted with the arc plate. Two clamping grooves are opened on the lower pressure plate, and the two abutment rods are slidably abutted with the two clamping grooves respectively and one by one.

[0009] Furthermore, a reset mechanism is provided between two adjacent fixed plates on the same movable frame, and each reset mechanism includes a cross bar fixedly connected between the two adjacent fixed plates, and a reset plate is fixedly connected to the frame, and the reset plate and the cross bar are slidably abutted.

[0010] Furthermore, the reset plate has a contact inclined surface and a vertical plane.

[0011] Furthermore, the invention also comprises a driving mechanism, which comprises a turntable rotatably connected to the frame, two connecting rods rotatably connected to the turntable, and two sliding rods respectively located at the central positions on the two moving frames are rotatably connected to the ends of the two connecting rods.

[0012] Furthermore, a through slot for the slide bar to slide is provided on the frame.

[0013] Furthermore, the movable frame has a plurality of supporting planes for supporting the second profile.

[0014] Furthermore, the placement table is arranged in a U-shape, and is provided with a plurality of rollers which are rotatably abutted with the first profile.

[0015] Furthermore, a blind groove for the lifting rod to slide and a vertical groove for the locking plate to slide are provided on the rotating plate.

[0016] In the above technical scheme, the welding device for processing skylights for lighting and smoke exhaust provided by the present invention can transport the second profile by the process of two movable frames approaching each other. At the same time, even if the first profile on the placement table is not neatly placed, the position of the first profile can be adjusted through the linkage mechanism, and after the position of the first profile is adjusted, the first profile can be avoided to avoid interference between the two; in addition, the first profile can be passively clamped and fixed as the movable frame moves, thereby improving the connection stability between the second profile and the first profile, facilitating welding operations, and avoiding the problem that the skylight frame is welded first, so that the reinforcing ribs cannot be put into the frame for welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure of a first viewing angle provided by an embodiment of the present invention; Figure 2 A schematic diagram of a structure from another perspective provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a moving frame, a linkage mechanism, a reset mechanism, and a driving mechanism provided in an embodiment of the present invention; Figure 4 A schematic diagram of the internal structure of a mobile frame and a linkage mechanism provided in an embodiment of the present invention; Figure 5 Schematic cross-sectional structure diagram of the rotating plate provided by the embodiment of the present invention; Figure 6 Schematic bottom view and drive mechanism structure diagram of the frame provided by the embodiment of the present invention; Figure 7 Schematic structure diagram of the placement table and clamping mechanism provided by the embodiment of the present invention; Figure 8 Schematic diagram of the enlarged partial structure at B provided by the embodiment of the present invention; Fig. 9 Schematic diagram of the enlarged partial structure at A provided by the embodiment of the present invention.

[0019] Explanation of reference numerals: 1. Frame; 11. Through groove; 2. Placement table; 3. Moving frame; 31. Support plane; 4. Linkage mechanism; 41. Fixed plate; 42. Slide bar; 43. Rotating plate; 431. Blind groove; 432. Vertical groove; 44. Telescopic plate; 441. Inclined groove; 45. First spring; 46. Lifting rod; 47. Locking plate; 48. Arc plate; 5. Clamping mechanism; 51. Rotating shaft; 52. Claw; 53. Second spring; 54. Abutting rod; 55. Lower pressing plate; 551. Clamping groove; 6. Reset mechanism; 61. Cross bar; 62. Reset plate; 621. Abutting inclined plane; 622. Vertical plane; 7. Drive mechanism; 71. Turntable; 72. Connecting rod. Detailed implementation manners

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Please refer to Figure 1-9 , the welding device for processing daylighting and smoke exhaust skylights provided by the embodiment of the present invention includes: a frame 1; a plurality of placement tables 2 fixedly connected to the frame 1; a first profile is provided on each placement table 2, and a clamping mechanism 5 for clamping and fixing the first profile is provided at both ends of each placement table 2.

[0022] As a preferred embodiment: the placement table 2 is arranged in a U shape, and the U-shaped opening is arranged vertically upward, the first profile is arranged inside the U-shaped opening, and a plurality of rollers that are rotationally abutted and cooperated with the first profile are arranged on the placement table 2; it can be understood that the rollers are arranged inside the U-shaped opening and below the first profile. By the rotation of the rollers, the friction between the first profile and the placement table 2 can be reduced, so as to facilitate the movement of the first profile and make the first profile located at the center position of the placement table 2, and adjust the position of the first profile for the subsequent welding of the frame and reinforcing ribs of the daylighting and smoke exhaust skylight.

[0023] Two mobile racks 3 are symmetrically slidably connected to the frame 1; the two mobile racks 3 are both provided with a second profile; the two mobile racks 3 are both provided with a plurality of linkage mechanisms 4 cooperating with the clamping mechanism 5; the mobile racks 3 have a plurality of supporting planes 31 for supporting the second profile.

[0024] Those skilled in the art will understand that: Figure 2 In the state shown, the two outermost first profiles and the two second profiles of the two movable frames 3 are connected, so that the two first profiles and the two second profiles form the frame of the light and smoke exhaust skylight, and the remaining other first profile located in the middle position is a reinforcement rib, which is welded synchronously with the frame of the light and smoke exhaust skylight while the welding operation is in progress, thereby avoiding the problem that the frame of the light and smoke exhaust skylight is welded first, which makes it difficult to put the reinforcement ribs into the frame of the light and smoke exhaust skylight, and then causes difficulty in welding the reinforcement ribs.

[0025] The two moving frames 3 have a centering stroke, a clamping stroke, and a welding station when they approach each other; Centering stroke: the two moving frames 3 respectively drive the linkage mechanisms 4 thereon to move synchronously, and each linkage mechanism 4 respectively contacts the end of each first profile, driving each first profile to slide on its corresponding placement table 2, so that each first profile is located at the center position of its corresponding placement table 2; Clamping stroke: driving each linkage mechanism 4 to avoid the end of the first profile corresponding to it, and making each clamping mechanism 5 located at both ends of the placement table 2 clamp the first profile on the placement table 2 corresponding to it; Welding station: The side surfaces of the two second profiles are in contact with the ends of the first profiles.

[0026] Those skilled in the art can understand that the two movable frames 3 have a reset stroke in the process of moving away from each other; the reset stroke drives the rotating plate 43 to rotate 90 degrees clockwise around the rotation axis between it and the fixed plate 41, so that the rotating plate 43 is reset from the horizontal state to the vertical standing state in the initial state.

[0027] In the embodiment of the present invention: the linkage mechanism 4 includes a fixed plate 41 fixedly connected to the mobile frame 3, a slide bar 42 fixedly connected to the fixed plate 41, and the slide bar 42 is slidably connected to the frame 1; specifically, a through slot 11 for the slide bar 42 to slide is opened on the frame 1, and the opening direction of the through slot 11 is perpendicular to the mobile frame 3; a rotating plate 43 is rotatably connected to the fixed plate 41, and a torsion spring is arranged between the rotating plate 43 and the fixed plate 41; in the drawings of the specification, the torsion spring is not shown; as shown in FIG. Figure 4In the state shown, at this time, the torsion spring is in an elastic deformation state, and the elastic force of the torsion spring to restore the elastic deformation drives the rotating plate 43 to rotate 90 degrees counterclockwise around the rotation axis between it and the fixed plate 41, so that the rotating plate 43 rotates from a vertical state to a horizontal state. The vertical height of the rotating plate 43 after the rotation is reduced, and the interference between the rotating plate 43 and the end of the first profile can be avoided during the movement of the mobile frame 3; a telescopic plate 44 is horizontally slidably connected in the rotating plate 43, and the telescopic plate 44 abuts against the end of the first profile, and a first spring 45 is provided between the telescopic plate 44 and the inner wall of the fixed plate 41; specifically, the first spring 4 5 is a compression spring; the first spring 45 undergoes elastic deformation, driving the telescopic plate 44 to slide toward the inner direction of the fixed plate 41; the telescopic plate 44 is provided with an oblique groove 441, and a lifting rod 46 is vertically slidably connected in the rotating plate 43, and the lifting rod 46 is slidably connected in the oblique groove 441, and a locking plate 47 is fixedly connected to the lifting rod 46, and an arc plate 48 is fixedly connected to the fixed plate 41, and the locking plate 47 penetrates the rotating plate 43 and is plugged and matched with the fixed plate 41, and the end of the locking plate 47 is abutted and matched with the arc plate 48; it can be understood that a plug-in groove is provided on the fixed plate 41, and the plug-in groove is plug-matched with the end of the locking plate 47.

[0028] Specifically, the rotating plate 43 is provided with a blind groove 431 for the lifting rod 46 to slide, and a vertical groove 432 for the locking plate 47 to slide.

[0029] It should be pointed out that: through the setting of the arc plate 48, after the locking plate 47 is pulled out from the plug-in slot of the fixed plate 41, the rotating plate 43 is then rotated 90 degrees counterclockwise about its rotation axis. As the rotation proceeds, the end of the locking plate 47 slides and abuts against a side of the arc plate 48 close to the rotating plate 43. It is also through the abutment and cooperation between the locking plate 47 and the arc plate 48 that when the rotating plate 43 is rotated 90 degrees clockwise for reset, the end of the locking plate 47 can slide along the arc surface of the arc plate 48 and slide into the plug-in slot on the fixed plate 41, thereby completing the reset.

[0030] The clamping mechanism 5 includes two rotating shafts 51 fixedly connected to the placing table 2, and the two rotating shafts 51 are respectively rotatably connected with clamping claws 52, a second spring 53 is arranged between the two clamping claws 52, and abutment rods 54 are fixedly connected to the two clamping claws 52. A lower pressure plate 55 is vertically slidably connected to the frame 1, and the lower pressure plate 55 is slidably abutted with the arc plate 48. Two clamping grooves 551 are opened on the lower pressure plate 55, and the two abutment rods 54 are slidably abutted with the two clamping grooves 551 respectively and one by one.

[0031] It is worth mentioning that a fixed foundation (not shown in the figure) is provided on the frame 1 for the vertical lifting and lowering of the lower pressure plate 55; when the lower pressure plate 55 moves vertically downward, the two clamping jaws 52 are driven to rotate through the cooperation of the clamping groove 551 and the abutment rod 54, and the ends of the two clamping jaws 52 jointly clamp the first profile, thereby fixing the first profile and providing a stable welding environment for the subsequent welding operation.

[0032] The working principle of the linkage mechanism 4 and the clamping mechanism 5 is as follows: Figure 1 , Figure 2 The moving frame 3 drives the fixed plate 41 to move together. Figure 1 The first profile is placed randomly, and the ends of the first profile are no longer on the same straight line, that is, the first profile is not located at the center position of the placement table 2; as the moving frame 3 moves, the telescopic plate 44 first contacts the end of the first profile, and through the cooperation of the rollers on the placement table 2 and the first profile, the two telescopic plates 44 simultaneously move and limit the first profile, driving the first profile to move to the center position on the placement table 2; then, since the moving frame 3 is still continuing to slide, and the first profile is already in the center position of the placement table 2, the abutment force between the telescopic plate 44 and the first profile will drive the telescopic plate 44 to slide toward the inside of the rotating plate 43, and squeeze the first spring 45, and cooperate with the lifting rod 46 through the inclined groove 441 and the blind groove 431, driving the lifting rod 46 and the locking plate 47 to move vertically upward synchronously, so that the end of the locking plate 47 is released from the fixed plate 41 When the movable frame 3 is pulled out from the insertion slot, the torsion spring between the rotating plate 43 and the fixed plate 41 recovers its elastic deformation, driving the rotating plate 43 to rotate 90 degrees counterclockwise, so that the rotating plate 43 changes from a vertical state to a horizontal state, thereby reducing the height of the rotating plate 43 and being able to avoid the first profile. As the movable frame 3 continues to slide, the arc plate 48 will abut against the lower pressure plate 55. It should be noted that: with the midpoint of the arc line of the arc plate 48 as the boundary, the arc plate 48 is divided into an upward oblique section and a downward oblique section. At this time, the downward oblique section of the arc plate 48 abuts against the lower pressure plate 55, driving the lower pressure plate 55 to move vertically downward, thereby driving the two clamps 52 to clamp the first profile together. As the movable frame 3 continues to move, until the end of the first profile abuts against the side of the second profile, the welding device welds the connection position of the first profile and the second profile. Among them, the welding device is a prior art and will not be described in detail again.

[0033] In an embodiment of the present invention: a reset mechanism 6 is provided between two adjacent fixed plates 41 located on the same movable frame 3, and the reset mechanism 6 is used to drive the rotating plate 43 to rotate and reset. Each reset mechanism 6 includes a cross bar 61 fixedly connected between two adjacent fixed plates 41, and a reset plate 62 is fixedly connected to the frame 1, and the reset plate 62 is slidably abutted against the cross bar 61.

[0034] Specifically, the reset plate 62 has an abutting inclined surface 621 and a vertical plane 622.

[0035] It must be pointed out that in order to avoid interference between the moving frame 3 and the reset plate 62 during the movement of the moving frame 3, a U-shaped structure (not shown in the figure) is adopted at the position of the moving frame 3 corresponding to the reset plate 62, and the opening of the U-shaped structure is arranged downward. When the moving frame 3 moves to the position of the reset plate 62, the reset plate 62 is located inside the opening of the U-shaped structure, and can avoid interference with the U-shaped structure of the moving frame 3.

[0036] When the moving frame 3 slides back in the reverse direction, by abutting the cross bar 61 against the abutting inclined surface 621 and the vertical plane 622, the cross bar 61 can drive the rotating plate 43 to rotate and reset. During the rotation and reset process of the rotating plate 43, the end of the locking plate 47 slides from the arc surface of the arc plate 48 into the insertion slot of the fixing plate 41, thereby completing the rotation and reset of the rotating plate 43.

[0037] In the embodiment of the present invention: there is also a driving mechanism 7, which is used to drive the moving frame 3 to slide along the first direction and the second direction respectively; it includes a turntable 71 rotatably connected to the frame 1, and two connecting rods 72 are rotatably connected to the turntable 71. The two sliding rods 42 located at the central positions of the two moving frames 3 are respectively rotatably connected to the ends of the two connecting rods 72.

[0038] Specifically, in the embodiment of the present invention, there is also a driving source for driving the turntable 71 to rotate forward and backward. The driving source is a motor, and the output end of the motor is fixedly connected to the turntable 71.

[0039] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A welding device for processing lighting and smoke exhaust skylights, characterized in that: include: frame; A plurality of placement tables, which are fixedly connected to the frame; each placement table is provided with a first profile, and both ends of each placement table are provided with a clamping mechanism for clamping and fixing the first profile thereon; Two moving frames are symmetrically slidably connected to the frame; the second profile is arranged on both moving frames; and a plurality of linkage mechanisms cooperating with the clamping mechanism are arranged on both moving frames; The two moving frames have centering stroke, clamping stroke and welding station when they approach each other; Centering stroke: The two moving frames respectively drive the linkage mechanisms thereon to move synchronously, and each linkage mechanism respectively contacts the end of each first profile, driving each first profile to slide on its corresponding placement table, so that each first profile is located at the center position of its corresponding placement table; Clamping stroke: driving each linkage mechanism to avoid the end of the first profile corresponding to it, and making each clamping mechanism located at both ends of the placement table clamp the first profile on the placement table corresponding to it; Welding station: The side surfaces of the two second profiles are in contact with the ends of the first profiles.

2. The welding device for processing lighting and smoke exhaust skylights according to claim 1 is characterized in that: The linkage mechanism includes a fixed plate fixedly connected to the mobile frame, a sliding rod fixedly connected to the fixed plate, the sliding rod is slidably connected to the frame, a rotating plate is rotatably connected to the fixed plate, a torsion spring is arranged between the rotating plate and the fixed plate, a telescopic plate is transversely slidably connected in the rotating plate, the telescopic plate abuts against the end of the first profile, a first spring is arranged between the telescopic plate and the inner wall of the fixed plate, an oblique groove is opened on the telescopic plate, a lifting rod is vertically slidably connected in the rotating plate, the lifting rod is slidably connected in the oblique groove, a locking plate is fixedly connected to the lifting rod, an arc plate is fixedly connected to the fixed plate, the locking plate passes through the rotating plate and is plugged into the fixed plate, and the end of the locking plate abuts against the arc plate.

3. The welding device for processing lighting and smoke exhaust skylights according to claim 2 is characterized in that: The clamping mechanism includes two rotating shafts fixedly connected to the placing table, and clamping claws are rotatably connected to the two rotating shafts respectively. A second spring is arranged between the two clamping claws, and abutment rods are fixedly connected to the two clamping claws. A lower pressure plate is vertically slidably connected to the frame, and the lower pressure plate is slidably abutted with the arc plate. Two clamping grooves are opened on the lower pressure plate, and the two abutment rods are slidably abutted with the two clamping grooves respectively and one by one.

4. The welding device for processing lighting and smoke exhaust skylights according to claim 2 is characterized in that: A reset mechanism is arranged between two adjacent fixed plates on the same mobile frame. Each reset mechanism comprises a cross bar fixedly connected between the two adjacent fixed plates. A reset plate is fixedly connected to the frame, and the reset plate and the cross bar are slidably abutted and matched.

5. The welding device for processing lighting and smoke exhaust skylights according to claim 4 is characterized in that: The reset plate is provided with a contact inclined surface and a vertical plane.

6. The welding device for processing lighting and smoke exhaust skylights according to claim 2 is characterized in that: It also includes a driving mechanism, which includes a turntable rotatably connected to the frame, two connecting rods rotatably connected to the turntable, and two sliding rods located at the central positions of the two moving frames are rotatably connected to the ends of the two connecting rods.

7. The welding device for processing lighting and smoke exhaust skylights according to claim 2 is characterized in that: The frame is provided with a through slot for the slide bar to slide.

8. The welding device for processing lighting and smoke exhaust skylights according to claim 1 is characterized in that: The moving frame has a plurality of supporting planes for supporting the second profile.

9. The welding device for processing a skylight for lighting and smoke exhaust according to claim 1, characterized in that: The placement table is arranged in a U-shape, and is provided with a plurality of rollers which are rotatably abutted with the first profile.

10. The welding device for processing lighting and smoke exhaust skylights according to claim 2, characterized in that: The rotating plate is provided with a blind groove for the lifting rod to slide, and a vertical groove for the locking plate to slide.

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