Bridge steel formwork welding tool and welding method

Abstract

The invention discloses a bridge steel formwork welding tool and a welding method, belongs to the technical field of welding tools, and particularly relates to a bridge steel formwork welding tool which comprises a supporting table and a bearing plate. The tops of the moving plates slidably penetrate through the bearing plate, extend to the position above the bearing plate and are fixedly provided with clamping plates. After a to-be-welded steel formwork is placed on the placing table, the to-be-welded steel formwork can be limited through the clamping plates synchronously and reversely moving on the two sides, manual supporting is not needed, and meanwhile the to-be-welded steel formwork is limited through the clamping plates; the pressing roller assembly is used for knocking a frame plate and a face plate in the steel formwork to be welded and then forcing the frame plate and the face plate to be tightly attached, the gap problem caused by unevenness of components is solved, and then the situation that the levelness of the steel formwork to be welded is inclined when clamping plates on the two sides are extruded and limited can be prevented; and the influence on the subsequent welding quality is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding tooling, in particular to a welding tooling for bridge steel formwork and a welding method. Background Art

[0002] Bridge steel formwork is an indispensable construction equipment in bridge construction. It is mainly used for the forming of concrete structures. Through precise design and processing, it ensures that the concrete can form the required shape and size during the pouring process. The bridge steel formwork is mainly composed of panels, frame plates and grid reinforcement plates. Because of its high strength, high rigidity, high turnover times and high forming precision, it is widely used in highway, railway, municipal and other bridge projects. During the production and processing of steel formwork, it is necessary to weld the panels, frame plates and grid reinforcement plates. The traditional welding method is to use manual welding. During manual welding, one hand is required to hold the steel formwork for positioning and fitting. Due to the poor positioning of manual operation, there is a certain error in the accuracy of welding, which is not conducive to improving the quality of workpiece welding. Therefore, we proposed a bridge steel formwork welding tool and welding method to solve the above problems. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a bridge steel formwork welding tool and a welding method, which solve the problems raised in the above-mentioned background technology.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0008] Furthermore, the pressure roller assembly includes two connecting blocks fixed on one side wall of the clamping plate, and a connecting plate is fixed on the top of each connecting block. The two connecting plates are rotatably connected to the limited pressure roller through a bearing.

[0009] Furthermore, a rotating shaft 1 is rotatably connected between the two connecting blocks via a bearing, two cams are fixed to the surface of the rotating shaft 1, a mounting plate fixed to a side wall of the clamping plate is provided between the two cams, guide blocks are fixed to both side walls of the mounting plate, lifting frames are slid inside the through holes opened in the tops of the guide blocks, spring 1 is fixed to the bottom inner wall of the lifting frames, the top ends of the spring 1 are fixedly connected to the corresponding guide blocks respectively, the side walls of the lifting frames are rotatably connected to the rotating shaft 2 via bearings, and two annular sleeves are fixed to the surface of the rotating shaft 2.

[0010] Furthermore, two gears 1 are fixed on the surface of the rotating shaft 2, and racks 1 are fixed on both side walls of the supporting plate, and the gears 1 are respectively meshed and connected with the corresponding racks 1.

[0011] Furthermore, it also includes an ejection assembly for jacking up the steel formwork after welding, and the ejection assembly includes two lifting plates arranged under the support platform, and the two side walls of the two lifting plates are fixed with lifting frames, and the tops of the lifting frames slide through the support platform and the load-bearing plate and extend above the two, and the tops of the lifting plates are fixed with two springs 2, and the tops of the springs 2 are fixedly connected to the bottom of the support platform.

[0012] Furthermore, one side of the two jacking plates is provided with a U-shaped plate fixed to the bottom of the support platform, and the U-shaped plates are rotatably connected to the rotating shaft three through bearings, and two flip plates for lifting the jacking plate are fixed on the surface of the rotating shaft three, and two guide rails are fixed to the bottom of the support platform, and two racks two are slidingly connected on the guide rails, one end of the rack two is fixed with a spring three, and the other end of the spring three is fixedly connected to the corresponding guide rail, and a gear two is fixed on the surface of the rotating shaft three, and the gear two is meshed with the corresponding rack two, and a push block is fixed on one side wall of the rack two, and two push plates are fixed on the surface of the two clamping plates.

[0013] Furthermore, a universal ball assembly is installed on the top of the placement table, and the number of the universal ball assemblies is four.

[0014] Furthermore, two T-shaped guide slots are provided on the top of the support platform, and two T-shaped guide sliding blocks adapted to the T-shaped guide slots are fixed on the bottom of the movable plate.

[0015] A welding method for a bridge steel formwork welding tool comprises the following steps:

[0016] S1: First, place the panel and frame of the steel formwork to be welded on the placement table, and then drive the two clamping plates to move closer to each other through the driving mechanism. When the two clamping plates move closer to each other, they can limit the clamping of the panel and frame. At this time, after the two are positioned, the welding operation can be carried out;

[0017] S2: When the clamping plates on both sides approach each other, they will drive the pressure roller assembly to move synchronously. At this time, the pressure roller assembly can realize reciprocating knocking on the panel and frame and limit their upper position, thereby preventing the two from tilting horizontally after being clamped by the clamping plates;

[0018] S3: After welding is completed, when the two clamping plates move away from each other and continue to move after resetting, the clamping plates can drive the ejection assembly to work, and after the ejection assembly works, the welded steel formwork can be lifted to a certain height, so that the staff can remove the welded steel formwork later.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the present invention provides a bridge steel formwork welding tool and welding method, which has the following beneficial effects:

[0021] The present invention places the steel template to be welded on a placement table, and then uses the clamping plates that move synchronously in opposite directions on both sides to limit its position, without the need for manual support. While the clamping plates limit the steel template to be welded, the provided pressure roller assembly can be used to knock the frame plate and the panel in the steel template to be welded and force the two to fit tightly together, thereby solving the gap problem caused by uneven components. Secondly, it can prevent the steel template to be welded from tilting in the horizontal direction when it is squeezed and limited by the clamping plates on both sides, thereby avoiding affecting the subsequent welding quality. In addition, when the steel template is welded, the ejection assembly can automatically eject it to a certain height to facilitate its subsequent removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0024] Figure 3 This is a structural diagram of the load-bearing plate of the present invention;

[0025] Figure 4 This is a schematic diagram of the support platform structure from a first perspective of the present invention;

[0026] Figure 5 This is a schematic diagram of the support platform structure of the present invention from a second viewing angle;

[0027] Figure 6 This is a schematic structural diagram of the pressure roller assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the placement table of the present invention;

[0029] Figure 8 It is a schematic diagram of the movable plate structure of the present invention.

[0030] In the figure: 1. Support table; 2. Moving plate; 3. Clamping plate; 4. Placing table; 5. Driving mechanism; 501. Transmission shaft; 502. Transmission rod; 503. Connecting rod; 504. Motor; 6. Press roller assembly; 601. Connecting block; 602. Connecting plate; 603. Positioning roller; 604. Rotating shaft 1; 605. Cam; 606. Mounting plate; 607. Guide block; 608. Lifting frame; 609. Spring 1; 610. Rotating shaft 2; 611. Annular sleeve; 612, gear one; 613, rack one; 7, ejector assembly; 701, lifting plate; 702, lifting frame; 703, spring two; 704, U-shaped plate; 705, rotating shaft three; 706, flip plate; 707, guide rail; 708, rack two; 709, spring three; 710, gear two; 711, push block; 712, push plate; 8, universal ball assembly; 9, T-type guide groove; 10, T-type guide slider; 11, load-bearing plate. DETAILED DESCRIPTION

[0031] 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8As shown, a bridge steel formwork welding fixture proposed in one embodiment of the present invention includes a support platform 1 and a bearing plate 11. The top of the support platform 1 is limitedly slidably connected to two movable plates 2. The tops of the movable plates 2 slide through the bearing plate 11 and extend above it and are fixed with clamping plates 3. Two T-shaped guide slots 9 are provided on the top of the support platform 1, and two T-shaped guide sliders 10 are fixed on the bottom of the movable plate 2 to match the T-shaped guide slots 9. Through the cooperation of the T-shaped guide slots 9 and the T-shaped guide sliders 10, the movable plate 2 can be provided with auxiliary support, so that it will be more stable during the movement. A placing platform 4 fixed to the top of the bearing plate 11 is provided between the two clamping plates 3. A universal ball assembly 8 is installed on the top of the placing platform 4. The universal ball assembly 8 There are four groups of them. The universal balls in the universal ball assembly 8 are limitedly installed inside their mounting seats so that the universal balls will not fall off. By using the set universal ball assembly 8, the staff can place the steel template to be welded on the top of the placement table 4 and move it at a close distance with less effort, and can reduce the friction between the steel template to be welded and the placement table 4. At the same time, when the two clamping plates 3 are clamping the steel template to be welded, the center position of the steel template to be welded will deviate when it is placed. At this time, when the clamping plates 3 on both sides squeeze the steel template to be welded and move it, it can also avoid the friction between the steel template to be welded and the placement table 4. The steel template to be welded is placed on the top of the placement table 4, and a useful A driving mechanism 5 is used to drive the two clamping plates 3 to move synchronously in opposite directions. The driving mechanism 5 includes a transmission shaft 501 rotatably connected to the support platform 1 through a bearing. A transmission rod 502 is fixed to the surface of the transmission shaft 501. Both ends of the transmission rod 502 are rotatably connected to a connecting rod 503 through a pin shaft. The other ends of the connecting rod 503 are rotatably connected to the corresponding movable plate 2 through a pin shaft. A motor 504 is fixed to the bottom of the support platform 1. The output end of the motor 504 is fixedly connected to the bottom end of the transmission shaft 501. A pressure roller assembly 6 for top limiting the steel formwork to be welded is installed on one side wall of the clamping plate 3. When using this bridge steel formwork welding fixture, when welding the steel formwork, the panel and the frame plate are usually welded first, and then the grid reinforcement plate is welded. , Therefore, the steel formwork to be welded placed on the placement table 4 consists of a panel and a frame plate. When the welding of the two is completed, the staff can move the clamping plate 3 to reset, and then place the grid reinforcement plate inside the frame plate and continue welding. As shown in the figure, after the panel and the frame plate are placed on the top of the placement table 4, the motor 504 with a self-locking speed regulation function is started to drive the transmission shaft 501 to rotate, and the transmission shaft 501 will drive the transmission rod 502 to rotate after the rotation, and the transmission rod 502 will drive the two connecting rods 503 to rotate after the rotation. At this time, with the cooperation of the two connecting rods 503, the two clamping plates 3 can be driven to approach each other. When the two clamping plates 3 are close to each other, the placed panel and frame plate can be limited and clamped, and due to the shape setting of the two clamping plates 3,The two can be used to clamp panels and frame plates of different sizes. Then, when the clamping plate 3 moves, it will drive the pressure roller assembly 6 to move. Then, after the pressure roller assembly 6 moves, it will reciprocate and knock the panel and frame plate and limit them. At this time, the two can be tightly fitted to avoid the horizontal tilt after the two are clamped. Subsequently, when the steel template to be welded is limited and clamped, the steel template can be welded by manual or automatic welding equipment. After the welding is completed, the clamping plates 3 on both sides are moved and reset, and then continue to move to drive the ejection assembly 7 to lift the welded steel template to a certain height, thereby making it convenient for the staff to remove the welded steel template.

[0034] like Figure 1 、 Figure 3 and Figure 6As shown, in some embodiments, the pressure roller assembly 6 includes two connecting blocks 601 fixed to one side wall of the clamping plate 3, and a connecting plate 602 is fixed on the top of each connecting block 601. The two connecting plates 602 are rotatably connected to the limited pressure roller 603 through a bearing, and a rotating shaft 1 604 is rotatably connected between the two connecting blocks 601 through a bearing. Two cams 605 are fixed on the surface of the rotating shaft 1 604, and a mounting plate 606 fixed to one side wall of the clamping plate 3 is provided between the two cams 605. Guide blocks 607 are fixed to both side walls of the mounting plate 606, and a lifting frame 608 is slidably provided inside the through hole opened in the top of the guide block 607. A spring 1 609 is fixed to the inner wall of the bottom of the lifting frame 608, and the top of the spring 1 609 is respectively engaged with the corresponding guide block 607 is fixedly connected, and the side walls of the lifting frame 608 are rotatably connected to the rotating shaft 2 610 through bearings. Two annular sleeves 611 are fixed on the surface of the rotating shaft 2 610, and two gears 1 612 are fixed on the surface of the rotating shaft 2 610. Rack 1 613 is fixed on the two side walls of the carrying plate 11, and gear 1 612 is respectively engaged with the corresponding rack 1 613. When in use, when the clamping plate 3 moves, it will drive the connecting block 601 to move. After the connecting block 601 moves, it will drive the limiting pressure rollers 603 on the two connecting plates 602 to squeeze the frame plate, so that the frame plate and the panel are closely fitted. And when the clamping plate 3 drives the connecting block 601 to move, with the cooperation of gear 1 612 and rack 1 613, the driving shaft can be realized at this time. When the shaft 604 rotates, the two cams 605 on its surface rotate, and the cams 605 rotate to drive the lifting frame 608 to move up. When the cams 605 release the squeeze on the lifting frame 608, the lifting frame 608 can be driven to reset under the reset force of the spring 1 609. Therefore, the lifting frame 608 can drive the annular sleeve 611 to knock back and forth the frame plate in the steel template to be welded, forcing the frame plate and the panel to fit tightly, avoiding gaps when the two are fitted due to burrs on the surface of the two, thereby reducing defects such as cold welding and air holes that may occur during welding, providing better basic conditions for subsequent welding operations, and when limiting the frame plate, it is first performed by knocking the frame plate and then by limiting the position. The pressure roller 603 presses them tightly and fits them together. At this time, after the frame plate and the panel are knocked together, the upper position of them is limited directly by the limiting pressure roller 603 to avoid the two being not tightly fitted. In order to prevent the annular sleeve 611 from causing damage to the frame plate of the steel template during the knocking process, it can be made of plastic. In addition, since the limiting pressure roller 603 rotates between the two connecting plates 602, and the annular sleeve 611 is fixed on the surface of the second rotating shaft 610, the two can rotate. Therefore, when the frame plate is moved after being knocked and limited, the limiting pressure roller 603 and the annular sleeve 611 roll while limiting the frame plate, so that the moving friction generated after the two contact the frame plate is converted into rolling friction, so as to protect the frame plate.

[0035] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6As shown, in some embodiments, a ejection assembly 7 for jacking the steel template after welding is further included. The ejection assembly 7 includes two jacking plates 701 arranged below the support platform 1. Both side walls of the two jacking plates 701 are fixed with jacking frames 702. The tops of the jacking frames 702 slide through the support platform 1 and the load-bearing plate 11 and extend above the two. Two springs 703 are fixed on the tops of the jacking plates 701. The tops of the springs 703 are fixed to the bottom of the support platform 1. One side of the two jacking plates 701 is provided with a U-shaped plate 704 fixed to the bottom of the support platform 1. The U-shaped plate 704 is rotatably connected to the rotating shaft 3 705 through a bearing. The surface of the rotating shaft 3 705 is fixed with two springs 703 for The flip plate 706 that lifts the jacking plate 701, the bottom of the support platform 1 is fixed with two guide rails 707, and the guide rails 707 are both connected with two racks 708 in a limited sliding manner, one end of the rack 708 is fixed with a spring 3 709, and the other end of the spring 3 709 is fixedly connected with the corresponding guide rail 707, the surface of the rotating shaft 3 705 is fixed with a gear 2 710, and the gear 2 710 is respectively meshed with the corresponding rack 2 708, and a push block 711 is fixed to one side wall of the rack 2 708, and the surface of the two clamping plates 3 is fixed with two push plates 712. When in use, when the two clamping plates 3 move closer to each other, the push plates 712 on both sides will be driven closer to each other, but at this time The movement of the pushing plate 712 does not push the pushing block 711 to move. When the two clamping plates 3 move away from each other, the pushing plates 712 on both sides will also be driven to move. At this time, the pushing plates 712 on both sides will move away from each other and will respectively drive the pushing blocks 711 to move. After the pushing blocks 711 move, they will drive the rack 2 708 to move. After the rack 2 708 moves, the spring 3 709 is in a stretched state, and when the rack 2 708 moves, it will drive the gear 2 710 to rotate. When the gear 2 710 rotates, it can drive the rotating shaft 3 705 to rotate. At this time, when the rotating shafts 3 705 on both sides rotate synchronously in opposite directions, they will respectively drive the flip plate 706 to rotate. After the flip plate 706 rotates, it will push the lifting plate 701 to move up. After the lifting plate 701 moves up, spring two 703 will be in a compressed state, and when the lifting plate 701 moves up, it will drive the lifting frame 702 to move up. At this time, under the action of the lifting frame 702, the welded steel formwork can be lifted to a certain height, so that the staff can remove it. After the welded steel formwork is removed, the clamping plates 3 on both sides can be driven to move and reset. When the clamping plates 3 move and reset to the initial position, under the action of spring three 709, the rack two 708 can be driven to reset, and then the flip plates 706 on both sides can be rotated and reset. Under the action of spring two 703, the lifting plate 701 can be reset, and then the lifting frame 702 can be reset, so as to facilitate the next lifting work.

[0036] A welding method for a bridge steel formwork welding tool comprises the following steps:

[0037] S1: First, place the panel and frame of the steel formwork to be welded on the placement table 4, and then drive the two clamping plates 3 to move closer to each other through the driving mechanism 5. When the two clamping plates 3 move closer to each other, they can limit and clamp the panel and frame. At this time, after the two are positioned, the welding operation can be carried out;

[0038] S2: When the clamping plates 3 on both sides approach each other, they will drive the pressure roller assembly 6 to move synchronously. At this time, the pressure roller assembly 6 can realize reciprocating knocking on the panel and frame and limit their upper position, thereby preventing the two from tilting horizontally after being clamped by the clamping plates 3;

[0039] S3: After welding is completed, when the two clamping plates 3 move away from each other and continue to move after resetting, the clamping plates 3 can drive the ejection assembly 7 to work, and after the ejection assembly 7 works, the welded steel formwork can be lifted to a certain height, so that the staff can remove the welded steel formwork later.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bridge steel formwork welding tool, comprising a support platform (1) and a bearing plate (11), characterized in that: The top of the support platform (1) is limitedly slidably connected to two movable plates (2), the tops of the movable plates (2) are all slidably passed through the carrier plate (11) and extended to the top thereof and fixed with a clamping plate (3), a placement platform (4) fixed to the top of the carrier plate (11) is provided between the two clamping plates (3), a steel template to be welded is placed on the top of the placement platform (4), and a driving mechanism (5) for driving the two clamping plates (3) to move synchronously in opposite directions is provided on the top of the support platform (1), the driving mechanism (5) includes a transmission mechanism rotatably connected to the support platform (1) through a bearing. A driving shaft (501) is provided, and a driving rod (502) is fixed on the surface of the driving shaft (501), and both ends of the driving rod (502) are rotatably connected to connecting rods (503) through pins, and the other ends of the connecting rods (503) are rotatably connected to the corresponding moving plates (2) through pins, and a motor (504) is fixed to the bottom of the support platform (1), and the output end of the motor (504) is fixedly connected to the bottom end of the driving shaft (501), and a pressure roller assembly (6) for top limiting the steel template to be welded is installed on one side wall of the clamping plate (3).

2. A bridge steel formwork welding tool according to claim 1, characterized in that: The pressure roller assembly (6) comprises two connecting blocks (601) fixed to a side wall of the clamping plate (3), a connecting plate (602) being fixed to the top of each connecting block (601), and a limited pressure roller (603) being rotatably connected between the two connecting plates (602) via a bearing.

3. A bridge steel formwork welding tool according to claim 2, characterized in that: A rotating shaft (604) is rotatably connected between the two connecting blocks (601) via a bearing. Two cams (605) are fixed on the surface of the rotating shaft (604). A mounting plate (606) fixed to a side wall of the clamping plate (3) is provided between the two cams (605). Guide blocks (607) are fixed on both side walls of the mounting plate (606). A lifting frame (608) slides inside the through hole opened at the top of the guide block (607). A spring (609) is fixed on the bottom inner wall of the lifting frame (608). The top end of the spring (609) is fixedly connected to the corresponding guide block (607). The side walls of the lifting frame (608) are rotatably connected to the rotating shaft (610) via a bearing. Two annular sleeves (611) are fixed on the surface of the rotating shaft (610).

4. A bridge steel formwork welding tool according to claim 3, characterized in that: Two gears 1 (612) are fixed on the surface of the rotating shaft 2 (610), and racks 1 (613) are fixed on both side walls of the supporting plate (11), and the gears 1 (612) are respectively meshed and connected with the corresponding racks 1 (613).

5. The bridge steel formwork welding tool according to claim 1, characterized in that: The invention also includes an ejection assembly (7) for jacking up the steel template after welding, and the ejection assembly (7) includes two jacking plates (701) arranged below the support platform (1), and the two side walls of the two jacking plates (701) are fixed with jacking frames (702), and the tops of the jacking frames (702) slide through the support platform (1) and the bearing plate (11) and extend above the two. The tops of the jacking plates (701) are fixed with two springs (703), and the tops of the springs (703) are fixedly connected to the bottom of the support platform (1).

6. The bridge steel formwork welding tool according to claim 5, characterized in that: One side of each of the two lifting plates (701) is provided with a U-shaped plate (704) fixed to the bottom of the support platform (1), and the U-shaped plate (704) is rotatably connected to a rotating shaft (705) through a bearing, and the surface of the rotating shaft (705) is fixed with two flip plates (706) for lifting the lifting plate (701), and the bottom of the support platform (1) is fixed with two guide rails (707), and the guide rails (707) are both limitedly slidably connected to two racks (708). One end of the rack gear 2 (708) is fixed with a spring 3 (709), and the other end of the spring 3 (709) is fixedly connected to the corresponding guide rail (707). The surface of the rotating shaft 3 (705) is fixed with a gear 2 (710), and the gear 2 (710) is meshed with the corresponding rack gear 2 (708). A push block (711) is fixed to one side wall of the rack gear 2 (708), and two push plates (712) are fixed to the surfaces of the two clamping plates (3).

7. The bridge steel formwork welding tool according to claim 1, characterized in that: A universal ball assembly (8) is installed on the top of the placement platform (4), and the number of the universal ball assemblies (8) is four.

8. The bridge steel formwork welding tool according to claim 1, characterized in that: Two T-shaped guide slots (9) are provided on the top of the support platform (1), and two T-shaped guide slide blocks (10) adapted to the T-shaped guide slots (9) are fixed on the bottom of the movable plate (2).

9. A welding method for a bridge steel formwork welding tool according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, the panel and frame of the steel template to be welded are placed on the placement table (4), and then the two clamping plates (3) can be driven to approach each other by the driving mechanism 5. When the two clamping plates (3) are moved to approach each other, the panel and frame can be clamped in a limited position. At this time, after the two are positioned, the welding operation can be carried out; S2: When the clamping plates (3) on both sides approach each other, they will drive the pressure roller assembly (6) to move synchronously. At this time, the pressure roller assembly (6) can achieve reciprocating knocking on the panel and the frame and limit the upper position thereof, thereby preventing the two from tilting horizontally after being clamped by the clamping plates (3); S3: After the welding is completed, when the two clamping plates 3 move away from each other after being reset, the clamping plates 3 can drive the ejection assembly (7) to work, and the ejection assembly (7) can lift the welded steel template to a certain height after working, so that the staff can remove the welded steel template later.

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