Special-shaped EPS top plate steel lining structure welding device

Abstract

The invention is suitable for the technical field of welding devices, and provides a special-shaped EPS top plate steel lining structure welding device which comprises a C-shaped fixing plate and a notch formed in the side wall of the C-shaped fixing plate and further comprises a follow-up plate connected with an elastic telescopic mechanism through an annular moving mechanism in the C-shaped fixing plate. The annular moving mechanism is used for driving the elastic telescopic mechanism and the follower plate to rotate in the C-shaped fixing plate, and the elastic telescopic mechanism is used for driving the follower plate to move towards the axis of the C-shaped fixing plate; two groups of fixing mechanisms are arranged in the C-shaped fixing plate and are used for respectively fixing two sections of steel linings to be welded; guide wheels are rotationally connected to the positions, located at the four corners of the follow-up plate, of the follow-up plate. The pressure spring pushes the telescopic block to move, the telescopic block drives the follow-up plate to move, the follow-up plate drives the four guide wheels to abut against the side wall of the steel lining, the follow-up plate drives the welding head to be perpendicular to the side wall of the steel lining all the time, then the welding quality of the steel lining is guaranteed, and the welding degree of welding seams of the steel lining is consistent.

Description

Technical Field

[0001] The invention belongs to the technical field of welding devices, and in particular relates to a welding device for a special-shaped EPS top plate steel lining structure. Background Art

[0002] Special-shaped EPS roof is a roof made of expandable polystyrene (EPS) material, which is wrapped with a steel lining, which plays a role in bearing weight and enhancing structural stability. The shape and size of the steel lining can be customized according to specific needs. Common steel liners include rectangular steel pipes and circular steel pipes.

[0003] To facilitate the transportation of the steel lining, the steel lining will be cut into certain lengths. During the production of special-shaped EPS top panels, the steel lining needs to be welded, which facilitates the production of special-shaped EPS top panels of different lengths. During the welding process of the steel lining, workers generally hold a welding device to weld the surrounding side of the steel lining. To improve the welding effect, a clamping device can be used to clamp the welding device, and then the rotating mechanism drives the welding device to weld the surrounding side of the steel lining.

[0004] In actual production, the above-mentioned device can only weld circular steel pipes. When the welding device rotates in a circle, the welding head always faces the center of rotation, so that the welding head and the side wall of the circular steel pipe are always kept perpendicular. When welding rectangular steel pipes, there is a problem that the welding head and the side wall of the rectangular steel pipe cannot always remain perpendicular, causing the angle between the welding head and the side wall of the rectangular steel pipe to change, affecting the welding effect and causing differences in welding quality. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide a welding device for a special-shaped EPS top plate steel lining structure, aiming to solve the problem that when the existing device welds a rectangular steel pipe, the angle between the welding head and the side wall of the rectangular steel pipe changes, resulting in differences in welding quality.

[0006] The present invention is achieved in this way. A welding device for a special-shaped EPS top plate steel lining structure comprises a C-shaped fixed plate, a notch arranged on the side wall of the C-shaped fixed plate, and also comprises: a follower plate connected by an annular moving mechanism and an elastic telescopic mechanism in the C-shaped fixed plate; the annular moving mechanism is used to drive the elastic telescopic mechanism and the follower plate to rotate in the C-shaped fixed plate, and the elastic telescopic mechanism is used to drive the follower plate to move toward the axis of the C-shaped fixed plate; two groups of fixing mechanisms are arranged in the C-shaped fixed plate, and the two groups of fixing mechanisms respectively fix two sections of steel lining to be welded; guide wheels are rotatably connected at the four corners of the follower plate on the follower plate, and balance tension springs are fixed at the four corners of the follower plate on the follower plate, and the ends of the four balance tension springs are fixed on the elastic telescopic mechanism; a welding head is arranged at the center of the follower plate, and a welding distance control component is arranged on the follower plate, and the welding distance control component is used to control the welding distance of the welding head to be the same.

[0007] A further technical solution is that the annular moving mechanism includes an annular guide groove 1 arranged on the inner wall of the C-shaped fixed plate, a C-shaped rotating plate 1 is slidably connected in the annular guide groove 1, an annular guide groove 2 is arranged on the inner wall of the C-shaped rotating plate 1, a C-shaped rotating plate 2 is slidably connected in the annular guide groove 2, the elastic telescopic mechanism is arranged on the inner wall of the C-shaped rotating plate 2, a rotating assembly and a transmission assembly are arranged on the C-shaped fixed plate, the rotating assembly is used to drive the C-shaped rotating plate 1 to rotate in the annular guide groove 1, when the C-shaped rotating plate 1 rotates, the transmission assembly drives the C-shaped rotating plate 2 to rotate in the annular guide groove 2, and the rotation direction of the C-shaped rotating plate 2 is the same as the rotation direction of the C-shaped rotating plate 1.

[0008] According to a further technical solution, the rotating assembly includes a motor fixed on the side wall of a C-shaped fixed plate, a gear 1 is fixed to the rotating end of the motor, an outer gear ring 1 is embedded and fixed on one side wall of the C-shaped rotating plate, the outer gear ring 1 is meshed with gear 1, and a notch is provided on the outer gear ring 1.

[0009] A further technical solution is that the transmission assembly includes a fixed plate fixed on the inner wall of the C-shaped fixed plate, and the fixed plate is rotatably connected with gear 2 and gear 3 that are meshed with each other, an inner gear ring is fixed on the inner wall of the C-shaped rotating plate 1, and gear 2 is meshed with the inner gear ring, an outer gear ring 2 is fixed on the side wall of the C-shaped rotating plate 2, and the outer gear ring 2 is meshed with gear 3, and both the inner gear ring and the outer gear ring 2 are provided with notches.

[0010] A further technical solution is that the elastic telescopic mechanism includes a fixed block fixed to the second inner wall of the C-shaped rotating plate, a guide groove is provided in the fixed block, a telescopic block is slidably connected in the guide groove, one end of the telescopic block is connected to a compression spring, the compression spring is located in the guide groove, and the other end of the telescopic block extends into the fixed block and is rotatably connected to the follower plate.

[0011] A further technical solution is that the fixing mechanism includes two guide sleeves evenly fixed in a C-shaped fixing plate, both guide sleeves are slidably connected with a V-shaped clamping rod, both guide sleeves are rotatably connected with a screw rod, the two screw rods are respectively threadedly connected to the two V-shaped clamping rods, and one end of the two screw rods extends out of the C-shaped fixing plate.

[0012] A further technical solution is that the welding distance control assembly includes a movable plate, two guide shafts are slidably connected to the movable plate, one end of the two guide shafts are fixed on the follower plate, a tension spring is arranged between the follower plate and the movable plate, the two ends of the tension spring are respectively fixedly connected to the follower plate and the movable plate, two mounting rods are fixed on the movable plate, the ends of the two mounting rods pass through the follower plate and are rotatably connected to the distance control wheel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The compression spring pushes the telescopic block to move, the telescopic block drives the follower plate to move, the follower plate drives the four guide wheels to rest against the side wall of the steel lining, and the follower plate drives the welding head to always be perpendicular to the side wall of the steel lining, thereby ensuring the welding quality of the steel lining and making the welding degree of the steel lining consistent;

[0015] 2. When the follower plate moves to the corner of the steel lining, the distance between the corner of the steel lining and the follower plate will change, causing the distance between the welding head and the side wall of the steel lining to change. At this time, under the tension of the tension spring, the distance control wheel also rests on the side wall of the steel lining. The distance control wheel controls the distance between the end of the welding head and the side wall of the steel lining through the mounting rod and the movable plate, thereby keeping the distance between the side wall of the steel lining and the welding head unchanged, thereby making the welding degree of the surrounding side of the steel lining the same and improving the welding quality of the steel lining. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a welding device for a special-shaped EPS top plate steel lining structure provided by the present invention;

[0017] Figure 2 The present invention provides Figure 1 Structural diagram of the main viewing angle;

[0018] Figure 3 The present invention provides Figure 2 Schematic diagram of the cross-sectional structure from the middle AA perspective;

[0019] Figure 4 The present invention provides Figure 3 A schematic diagram of the enlarged structure of B;

[0020] Figure 5 The present invention provides Figure 1Structural schematic diagram of the middle follower plate in different welding positions;

[0021] Figure 6 The present invention provides Figure 1 A schematic diagram of the structure of the elastic telescopic mechanism;

[0022] Figure 7 The present invention provides Figure 6 Schematic diagram of the internal structure of the fixed block;

[0023] Figure 8 The present invention provides Figure 6 Schematic diagram of the structure of the welding distance control component.

[0024] In the accompanying drawings: C-shaped fixed plate 101, notch 102, follower plate 103, guide wheel 104, balance tension spring 105, welding head 106, annular moving mechanism 2, annular guide groove 1 201, C-shaped rotating plate 1 202, annular guide groove 2 203, C-shaped rotating plate 2 204, rotating assembly 3, outer gear ring 1 301, gear 1 302, motor 303, transmission assembly 4, fixed plate 401, gear 2 402, gear 3 403, inner gear ring 404, outer gear ring 2 405, fixing mechanism 5, guide sleeve 501, V-shaped clamping rod 502, screw rod 503, elastic telescopic mechanism 6, fixed block 601, telescopic block 602, compression spring 603, guide groove 604, welding distance control assembly 7, movable plate 701, guide shaft 702, tension spring 703, mounting rod 704, distance control wheel 705. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] like Figure 1-Figure 8As shown, a welding device for a special-shaped EPS top plate steel lining structure provided by an embodiment of the present invention includes a C-shaped fixed plate 101, and a notch 102 set on the side wall of the C-shaped fixed plate 101, and also includes: a follower plate 103 connected by an annular moving mechanism 2 and an elastic telescopic mechanism 6 in the C-shaped fixed plate 101; the annular moving mechanism 2 is used to drive the elastic telescopic mechanism 6 and the follower plate 103 to rotate in the C-shaped fixed plate 101, and the elastic telescopic mechanism 6 is used to drive the follower plate 103 to move toward the axis of the C-shaped fixed plate 101; The C-shaped fixed plate 101 is provided with two sets of fixing mechanisms 5, and the two sets of fixing mechanisms 5 respectively fix the two sections of steel lining to be welded; the following plate 103 is rotatably connected with guide wheels 104 at the four corners of the following plate 103, and the following plate 103 is fixed with balance springs 105 at the four corners of the following plate 103, and the ends of the four balance springs 105 are fixed on the elastic telescopic mechanism 6; the center of the following plate 103 is provided with a welding head 106, and the welding head 106 is connected to the welding device. 3 is provided with a welding distance control component 7, the welding distance control component 7 is used to control the welding distance of the welding head 106, the elastic telescopic mechanism 6 includes a fixed block 601 fixed to the inner wall of the C-shaped rotating plate 204, a guide groove 604 is provided in the fixed block 601, a telescopic block 602 is slidably connected in the guide groove 604, one end of the telescopic block 602 is connected to a compression spring 603, the compression spring 603 is located in the guide groove 604, and the other end of the telescopic block 602 extends into the fixed block 601 and rotates with the follower plate 103 The welding distance control assembly 7 comprises a movable plate 701, on which two guide shafts 702 are slidably connected, one end of each of the two guide shafts 702 is fixed on a follower plate 103, a tension spring 703 is arranged between the follower plate 103 and the movable plate 701, and both ends of the tension spring 703 are respectively fixedly connected to the follower plate 103 and the movable plate 701, and two mounting rods 704 are fixed on the movable plate 701, and the ends of the two mounting rods 704 both penetrate the follower plate 103 and are rotatably connected to a distance control wheel 705.

[0028] In the embodiment of the present invention, in the initial state, the balance tension springs 105 on both sides of the follower plate 103 pull the follower plate 103, thereby keeping the follower plate 103 and the telescopic block 602 in a vertical state. When the guide wheel 104 is not in contact with the side wall of the steel liner, the balance tension spring 105 can also pull the follower plate 103 to restore the initial state; when the two sections of the steel liner need to be welded and connected, the two sections of the steel liner are respectively sent into the C-shaped fixed plate 101 from the two ends or the notch 102 of the C-shaped fixed plate 101, and the two sets of fixing mechanisms 5 respectively fix the two sections of the steel liner to be welded, so that the two sections of the steel liner are fixed in appropriate positions, the compression spring 603 pushes the telescopic block 602 to move, the telescopic block 602 drives the follower plate 103 to move, the follower plate 103 drives the four guide wheels 104 to rest on the side wall of the steel liner, the annular moving mechanism 2 drives the fixed block 601 to revolve in the C-shaped fixed plate 101, and the fixed block 601 drives The telescopic block 602 revolves, and during the revolution of the telescopic block 602, the follower plate 103 rotates relative to the telescopic block 602, so that the follower plate 103 drives the welding head 106 to always be perpendicular to the side wall of the steel lining, thereby ensuring the welding quality of the steel lining and making the welding degree of the weld of the steel lining consistent; when the follower plate 103 moves to the corner of the steel lining, the distance between the corner of the steel lining and the follower plate 103 will change, causing the distance between the welding head 106 and the side wall of the steel lining to change. At this time, under the tension of the tension spring 703, the distance control wheel 705 also rests on the side wall of the steel lining. The distance control wheel 705 controls the distance between the end of the welding head 106 and the side wall of the steel lining through the mounting rod 704 and the movable plate 701, thereby making the distance between the side wall of the steel lining and the welding head 106 unchanged, thereby making the welding degree of the surrounding side of the steel lining the same, thereby improving the welding quality of the steel lining.

[0029] like Figure 1-Figure 4As shown, as a preferred embodiment of the present invention, the annular moving mechanism 2 includes an annular guide groove 101 arranged on the inner wall of the C-shaped fixed plate 101, a C-shaped rotating plate 202 is slidably connected in the annular guide groove 101, an annular guide groove 203 is arranged on the inner wall of the C-shaped rotating plate 102, a C-shaped rotating plate 204 is slidably connected in the annular guide groove 203, the elastic telescopic mechanism 6 is arranged on the inner wall of the C-shaped rotating plate 204, a rotating assembly 3 and a transmission assembly 4 are arranged on the C-shaped fixed plate 101, the rotating assembly 3 is used to drive the C-shaped rotating plate 202 to rotate in the annular guide groove 101, when the C-shaped rotating plate 102 rotates, the transmission assembly 4 drives the C-shaped rotating plate 204 to rotate in the annular guide groove 203, and the rotation direction of the C-shaped rotating plate 204 is the same as the rotation direction of the C-shaped rotating plate 102 The same direction; the rotating component 3 includes a motor 303 fixed on the side wall of the C-shaped fixed plate 101, and a gear 1 302 is fixed to the rotating end of the motor 303. An outer gear ring 1 301 is embedded and fixed on the side wall of the C-shaped rotating plate 102, and the outer gear ring 1 301 is meshed with the gear 1 302, and a notch is provided on the outer gear ring 1 301. The transmission component 4 includes a fixed plate 401 fixed on the inner wall of the C-shaped fixed plate 101, and a gear 2 402 and a gear 3 403 that are meshed with each other are rotatably connected on the fixed plate 401, an inner gear ring 404 is fixed on the inner wall of the C-shaped rotating plate 102, and the gear 2 402 is meshed with the inner gear ring 404, and an outer gear ring 2 405 is fixed on the side wall of the C-shaped rotating plate 204, and the outer gear ring 2 405 is meshed with the gear 3 403, and notches are provided on the inner gear ring 404 and the outer gear ring 2 405.

[0030] In the embodiment of the present invention, when welding two sections of steel lining, the motor 303 drives the gear 1 302 to rotate, the gear 1 302 drives the outer gear ring 1 301 to rotate, the outer gear ring 1 301 drives the C-shaped rotating plate 1 202 to rotate, and then the C-shaped rotating plate 1 202 rotates on the C-shaped fixed plate 101, and the C-shaped rotating plate 1 202 drives the inner gear ring 404 to move relative to the gear 2 402, the inner gear ring 404 drives the gear 2 402 to rotate, and the gear 2 402 drives the gear The gear 3 403 is reversed, and the gear 3 403 drives the outer gear ring 2 405 to rotate, and the outer gear ring 2 405 drives the C-shaped rotating plate 2 204 to rotate, so that the C-shaped rotating plate 2 204 and the C-shaped rotating plate 1 202 rotate in the same direction, so that when the C-shaped rotating plate 1 202 rotates half a circle relative to the C-shaped fixed plate 101, the C-shaped rotating plate 2 204 rotates one circle relative to the C-shaped fixed plate 101, and the C-shaped rotating plate 2 204 drives the fixed block 601 to rotate one circle.

[0031] like Figure 1-Figure 3As shown, as a preferred embodiment of the present invention, the fixing mechanism 5 includes two guide sleeves 501 evenly fixed in a C-shaped fixing plate 101, and the two guide sleeves 501 are both slidably connected with a V-shaped clamping rod 502, and the two guide sleeves 501 are both rotatably connected with a screw rod 503, the two screw rods 503 are respectively threadedly connected to the two V-shaped clamping rods 502, and one end of the two screw rods 503 extends out of the C-shaped fixing plate 101.

[0032] In the embodiment of the present invention, when two sections of steel lining need to be welded and connected, the two sections of steel lining are respectively sent into the C-shaped fixing plate 101 from the two ends of the C-shaped fixing plate 101 or the notch 102, and the screw rod 503 is rotated. The screw rod 503 adjusts the distance between the two V-shaped clamping rods 502 relative to each other through thread transmission, so that the two V-shaped clamping rods 502 fix the steel lining, so that the two sections of steel lining are fixed in appropriate positions; after the welding of the two sections of steel lining is completed, the screw rod 503 is reversed, so that the V-shaped clamping rod 502 loosens the welded steel lining.

[0033] The above embodiment of the present invention provides a welding device for a special-shaped EPS top plate steel lining structure. When two sections of steel lining need to be welded and connected, the two sections of steel lining are respectively fed into the C-shaped fixing plate 101 from the two ends or the notch 102 of the C-shaped fixing plate 101, and the screw rod 503 is rotated. The screw rod 503 adjusts the distance between the two V-shaped clamping rods 502 by thread transmission, so that the two V-shaped clamping rods 502 fix the steel lining, so that the two sections of steel lining are fixed in a suitable position, and the compression spring 603 pushes the telescopic block 602 to move, and the telescopic block 602 The follower plate 103 is driven to move, and the follower plate 103 drives the four guide wheels 104 to rest against the side wall of the steel liner. The motor 303 drives the gear 1 302 to rotate, and the gear 1 302 drives the outer gear ring 1 301 to rotate, and the outer gear ring 1 301 drives the C-shaped rotating plate 1 202 to rotate, thereby making the C-shaped rotating plate 1 202 rotate on the C-shaped fixed plate 101, and the C-shaped rotating plate 1 202 drives the inner gear ring 404 to move relative to the gear 2 402, and the inner gear ring 404 drives the gear 2 402 to rotate, and the gear 2 402 drives the gear 3 403 to reverse. The gear three 403 drives the outer gear ring two 405 to rotate, the outer gear ring two 405 drives the C-shaped rotating plate two 204 to rotate, the C-shaped rotating plate two 204 drives the fixed block 601 to revolve in the C-shaped fixed plate 101, the fixed block 601 drives the telescopic block 602 to revolve, during the revolving process of the telescopic block 602, the follower plate 103 rotates relative to the telescopic block 602, so that the follower plate 103 drives the welding head 106 to always be perpendicular to the side wall of the steel lining, so as to ensure the welding quality of the steel lining and make the welding degree of the steel lining consistent; when the follower plate 103 moves to the steel lining, the welding head 106 is always perpendicular to the side wall of the steel lining, so as to ensure the welding quality of the steel lining and make the welding degree of the steel lining consistent. When the lining is at a corner, the distance between the corner of the steel lining and the follower plate 103 will change, causing the distance between the welding head 106 and the side wall of the steel lining to change. At this time, under the tension of the tension spring 703, the distance control wheel 705 also rests on the side wall of the steel lining. The distance control wheel 705 controls the distance between the end of the welding head 106 and the side wall of the steel lining through the mounting rod 704 and the movable plate 701, thereby keeping the distance between the side wall of the steel lining and the welding head 106 unchanged, thereby making the welding degree of the surrounding side of the steel lining the same and improving the welding quality of the steel lining.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for a special-shaped EPS top plate steel lining structure, comprising a C-shaped fixing plate (101) and a notch (102) arranged on the side wall of the C-shaped fixing plate (101), characterized in that: Also includes: A follower plate (103) connected in the C-shaped fixed plate (101) via an annular moving mechanism (2) and an elastic telescopic mechanism (6); The annular moving mechanism (2) is used to drive the elastic telescopic mechanism (6) and the follower plate (103) to rotate inside the C-shaped fixed plate (101), and the elastic telescopic mechanism (6) is used to drive the follower plate (103) to move toward the axis of the C-shaped fixed plate (101); Two sets of fixing mechanisms (5) are arranged in the C-shaped fixing plate (101), and the two sets of fixing mechanisms (5) respectively fix two sections of steel lining to be welded; The following plate (103) is rotatably connected to guide wheels (104) at four corners of the following plate (103), and the following plate (103) is fixed with balancing tension springs (105) at four corners of the following plate (103), and the ends of the four balancing tension springs (105) are fixed to the elastic telescopic mechanism (6); A welding head (106) is arranged at the center of the follower plate (103), and a welding distance control component (7) is arranged on the follower plate (103). The welding distance control component (7) is used to control the welding distance of the welding head (106) to be the same.

2. The welding device for the special-shaped EPS top plate steel lining structure according to claim 1 is characterized in that: The annular moving mechanism (2) comprises an annular guide groove (201) provided on the inner wall of the C-shaped fixed plate (101), and a C-shaped rotating plate (202) is slidably connected in the annular guide groove (201); The inner wall of the C-shaped rotating plate 1 (202) is provided with an annular guide groove 2 (203), and the C-shaped rotating plate 2 (204) is slidably connected in the annular guide groove 2 (203); The elastic telescopic mechanism (6) is arranged on the inner wall of the second C-shaped rotating plate (204), and the C-shaped fixed plate (101) is provided with a rotating assembly (3) and a transmission assembly (4); The rotating assembly (3) is used to drive the C-shaped rotating plate (202) to rotate in the annular guide groove (201); When the C-shaped rotating plate 1 (202) rotates, the transmission assembly (4) drives the C-shaped rotating plate 2 (204) to rotate in the annular guide groove 2 (203), and the rotation direction of the C-shaped rotating plate 2 (204) is the same as the rotation direction of the C-shaped rotating plate 1 (202).

3. The welding device for the special-shaped EPS top plate steel lining structure according to claim 2 is characterized in that: The rotating assembly (3) comprises a motor (303) fixed on the side wall of the C-shaped fixed plate (101), and a gear 1 (302) is fixed on the rotating end of the motor (303); An outer gear ring (301) is embedded and fixed on the side wall of the C-shaped rotating plate (202), and the outer gear ring (301) is meshed with the gear (302). A notch is provided on the outer gear ring (301).

4. The welding device for the special-shaped EPS top plate steel lining structure according to claim 2 is characterized in that: The transmission assembly (4) comprises a fixing plate (401) fixed on the inner wall of the C-shaped fixing plate (101), and a second gear (402) and a third gear (403) meshing with each other are rotatably connected to the fixing plate (401); An inner gear ring (404) is fixed on the inner wall of the C-shaped rotating plate 1 (202), and the gear 2 (402) is meshed with the inner gear ring (404); An outer gear ring 2 (405) is fixed on the side wall of the second C-shaped rotating plate (204), and the outer gear ring 2 (405) is meshed with the gear 3 (403). Notches are provided on the inner gear ring (404) and the outer gear ring 2 (405).

5. The welding device for the special-shaped EPS top plate steel lining structure according to claim 2 is characterized in that: The elastic telescopic mechanism (6) comprises a fixed block (601) fixed to the inner wall of the second C-shaped rotating plate (204), and a guide groove (604) is provided in the fixed block (601); A telescopic block (602) is slidably connected in the guide groove (604), one end of the telescopic block (602) is connected to a compression spring (603), and the compression spring (603) is located in the guide groove (604); The other end of the telescopic block (602) extends into the fixed block (601) and is rotationally connected to the follower plate (103).

6. The welding device for the special-shaped EPS top plate steel lining structure according to claim 1 is characterized in that: The fixing mechanism (5) comprises two guide sleeves (501) evenly fixed in a C-shaped fixing plate (101), and a V-shaped clamping rod (502) is slidably connected in the two guide sleeves (501); The two guide sleeves (501) are both rotatably connected with screw rods (503), the two screw rods (503) are respectively threadedly connected to the two V-shaped clamping rods (502), and one end of the two screw rods (503) extends out of the C-shaped fixing plate (101).

7. The welding device for the special-shaped EPS top plate steel lining structure according to claim 1 is characterized in that: The welding distance control assembly (7) comprises a movable plate (701), two guide shafts (702) are slidably connected to the movable plate (701), and one end of the two guide shafts (702) is fixed on the follower plate (103); A tension spring (703) is provided between the follower plate (103) and the movable plate (701), and two ends of the tension spring (703) are fixedly connected to the follower plate (103) and the movable plate (701) respectively; Two mounting rods (704) are fixed on the movable plate (701), and the ends of the two mounting rods (704) both penetrate the follower plate (103) and are rotatably connected to the distance control wheel (705).

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