A universal tool for welding corrugated guard plates for industrial guardrails

Abstract

The present invention relates to the technical field of welding auxiliary devices, and in particular to a universal tooling for welding corrugated guard plates for industrial guardrails, comprising a base, a placement seat symmetrically and slidably connected to the top of the base, the top shapes of the two placement seats each consisting of two arc-shaped grooves and an arc-shaped protrusion, an extrusion adjustment mechanism being arranged on the two placement seats, a welding mechanism being arranged in the middle of the top of the base, a cooling mechanism being arranged on the welding mechanism, and a docking mechanism being arranged at the bottom of the base; the extrusion adjustment mechanism comprises adjustment grooves symmetrically arranged at one end of the placement seat close to each other, four adjustment grooves being connected at one end with a square groove, and guide grooves being arranged at both ends of the four adjustment grooves; the present invention can make the gap at the docking position fall just below the welding gun, thereby ensuring the efficiency of welding, and can make the docking parts of the corrugated guard plates in close contact, thereby ensuring the welding effect.

Description

Technical Field

[0001] The invention relates to the technical field of welding auxiliary devices, and in particular to a universal welding tool for corrugated guard plates for industrial guardrails. Background Art

[0002] Corrugated guard plates for industrial guardrails, referred to as corrugated guard plates or corrugated guardrail plates, are a type of protective plate made of high-quality steel plates through a specific process. This type of plate is usually processed into a continuous trapezoidal or corrugated shape to improve its rigidity and reduce its weight. In the industrial guardrail system, the corrugated guard plates are fixed to the columns by welding or other connection methods to form a continuous structure to protect personnel and equipment from accidental injuries. With the widespread application of industrial guardrails, the length and size of corrugated guard plates for industrial guardrails vary. Therefore, the length of the corrugated guard plates needs to be adjusted according to different usage positions. Therefore, welding is required according to different sizes to extend the length, and tooling is required to clamp and fix them during welding.

[0003] At present, in the prior art, when the corrugated plates are clamped, the two sides of the corrugated plates are clamped and limited. When the two corrugated plates are butt-jointed, there is a lack of limit fixation near the butt-jointed position. Therefore, when the clamping force is too large, the butt-jointed position will be arched, making it impossible to weld. When the clamping force is too small, the alignment position will not be tight enough, which will affect the welding effect of the corrugated plates and make the welding not firm. In addition, the welding mechanism needs to be adjusted according to the position of the butt-jointed gap during welding, which makes it impossible to quickly complete the welding operation, thereby affecting the welding efficiency.

[0004] In addition, a heat-affected zone will be formed at the welding position and its surroundings during welding, and being in the heat-affected zone will affect the performance of the corrugated guard plate, causing its material properties to deteriorate or cracks to form, and increase the deformation due to thermal expansion and contraction, thereby affecting the accuracy and stability of the welded structure and increasing the cooling time. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a universal welding tool for corrugated guard plates for industrial guardrails.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a universal welding tool for corrugated guard plates for industrial guardrails, comprising a base, the top of the base is symmetrically slidably connected with a placement seat, the top shapes of the two placement seats are composed of two arc grooves and an arc convex block, the two placement seats are provided with an extrusion adjustment mechanism, the middle part of the top of the base is provided with a welding mechanism, the welding mechanism is provided with a cooling mechanism, and the bottom of the base is provided with a docking mechanism;

[0007] The extrusion adjustment mechanism comprises adjustment grooves symmetrically arranged at one end of the placement seat close to each other, one end of each of the four adjustment grooves is connected to a square groove, both ends of each of the four adjustment grooves are provided with guide grooves, the inner walls of the four groups of guide grooves are provided with circular columns sliding therein, and adjustment plates are fixedly connected between the four groups of circular columns, and the top ends of the four adjustment plates close to each other are fixedly connected with alignment blocks and are used to position and block the corrugated guard plate body, and ensure that the docking position of the corrugated guard plate body is located directly below the welding mechanism;

[0008] The extrusion adjustment mechanism also includes an extrusion plate arranged at the top of the placement seat, the bottom ends of the two extrusion plates are symmetrically fixedly connected with fixed connecting columns and extend through the placement seat to the square groove, the bottom ends of the four fixed connecting columns are fixedly connected with movable slides, and the four movable slides are slidably connected to the adjustment plate. When the extrusion plate moves downward, it will carry the circular columns at both ends of the adjustment plate to move downward along the track of the guide groove and make the alignment block away from the corrugated guard plate body.

[0009] Preferably, the extrusion adjustment mechanism also includes an L-shaped fixing plate symmetrically fixedly connected to the top of the placement seat, two groups of L-shaped fixing plates are fixedly connected to a top plate at one end close to each other, a hydraulic rod is fixedly passed through the middle of the top of the two top plates, and the telescopic ends of the two hydraulic rods are fixedly connected to the extrusion plate.

[0010] Preferably, the bottom ends of the two extrusion plates are composed of two arc grooves and an arc protrusion, and are adapted to the top shape of the corrugated guard plate body. The top ends of the two extrusion plates correspond to the hydraulic rods on both sides fixedly connected with guide columns that pass through the top plate.

[0011] Preferably, the welding mechanism comprises a fixing frame fixedly connected to the middle part of the top end of the base, one end of the fixing frame is fixedly connected to a motor, a threaded rod is fixedly connected to the motor driving end, and the other end of the threaded rod is rotatably connected to the fixing frame.

[0012] Preferably, the outer wall of the threaded rod is threadedly connected with an adjusting slide rod, the adjusting slide rod and the fixed frame are slidably connected, a mechanical arm is fixedly installed on the bottom end of the adjusting slide rod, a welding gun is fixedly installed on the upper end of the mechanical arm, and the welding head of the welding gun corresponds to the gap generated by the docking of the corrugated guard plate body.

[0013] Preferably, the cooling mechanism includes a fixed block fixedly connected to the inner side of a corresponding fixed frame at the top of the base, the fixed blocks are provided with four and are symmetrically distributed about the center line of the cooling plate, the tops of the four fixed blocks are fixedly connected with cooling plates, and a cooling channel is provided inside the cooling plate for the flow of cooling water.

[0014] Preferably, a water inlet pipe and a water outlet pipe are fixedly passed through both ends of the cooling plate, the water inlet pipe is used for the inflow of cooling water, and the water outlet pipe is used for the discharge of cooling water.

[0015] Preferably, the docking mechanism includes a buffer groove opened at the bottom end of the placement seat, and the inner walls of the two buffer grooves are slidably connected with a movable plate, and a plurality of buffer springs are fixedly connected between the two groups of movable plates and the buffer grooves.

[0016] Preferably, square holes are symmetrically formed at the bottom end of the base, and the inner walls of the two square holes are both arranged on the outer wall of the movable plate.

[0017] Preferably, the docking mechanism includes an electric push rod fixedly connected to the middle of the bottom end of the base, the telescopic end of the electric push rod is fixedly connected to a lifting plate, both ends of the lifting plate are symmetrically rotatably connected to connecting plates, and two groups of the connecting plates are rotatably connected to the movable plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By setting the extrusion adjustment mechanism, the length of the butt joint can be kept consistent, so that the gap at the butt joint position can fall just below the welding gun, which is convenient for welding the gap without adjusting the welding mechanism, ensuring the welding efficiency, and the corrugated guard plate can be squeezed and fixed close to the welding position to prevent the butt joint from bulging or loose contact during butt jointing, thereby improving the welding effect;

[0020] The butt joint mechanism can avoid excessive clamping force when the corrugated guard plates on both sides are closely butted, thereby protecting the corrugated guard plates and preventing the corrugated guard plates from deforming at the butt joint and affecting the subsequent welding process.

[0021] The cooling mechanism can cool down the welding position and its surrounding area during welding, reduce the range of the heat-affected zone, and protect the performance of the corrugated plate, prevent the degradation of material performance or cracks caused by overheating, and reduce the deformation caused by thermal expansion and contraction, improve the accuracy and stability of the welding structure, and speed up the cooling speed, shorten the cooling time, and improve the welding efficiency;

[0022] By means of the arranged welding mechanism, the welding gun can be always kept perpendicular to the butt joint gap during welding, and can be changed according to the track of the weld, thereby improving the welding effect of the corrugated guard plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of a universal tooling for welding corrugated guard plates for industrial guardrails of the present invention;

[0024] Figure 2 It is a bottom-up stereoscopic schematic diagram of a universal tooling for welding corrugated guard plates for industrial guardrails of the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of a general tool for welding corrugated guard plates for industrial guardrails of the present invention from another perspective;

[0026] Figure 4 The invention discloses a universal welding tool for corrugated guard plate for industrial guardrail Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 It is a schematic diagram of the adjustment slot of a universal tool for welding corrugated guard plates for industrial guardrails of the present invention;

[0028] Figure 6 It is a cross-sectional view of a placement seat of a universal tooling for welding corrugated guard plates for industrial guardrails of the present invention;

[0029] Figure 7 It is a partial structural schematic diagram of a universal tool for welding corrugated guard plates for industrial guardrails of the present invention;

[0030] Figure 8 The invention discloses a universal welding tool for corrugated guard plate for industrial guardrail Figure 7 Enlarged view of point B in the middle;

[0031] Fig. 9 It is a vertical sectional view of a placement seat of a universal tooling for welding corrugated guard plates for industrial guardrails of the present invention;

[0032] Fig.10 The present invention is a vertical cross-sectional view of a cooling plate of a universal tool for welding corrugated guard plates for industrial guardrails.

[0033] In the figure: 1. base; 2. L-shaped fixing plate; 3. top plate; 4. fixing frame; 5. hydraulic rod; 6. guide column; 7. extrusion plate; 8. moving plate; 9. connecting plate; 10. electric push rod; 11. lifting plate; 12. placement seat; 13. motor; 14. buffer spring; 15. square hole; 16. threaded rod; 17. adjustment slide bar; 18. water inlet pipe; 19. cooling plate; 20. adjustment plate; 21. corrugated guard plate body; 22. fixing block; 23. adjustment groove; 24. guide groove; 25. alignment block; 26. moving slide plate; 27. square groove; 28. buffer groove; 29. ​​round column; 30. fixed connecting column; 31. mechanical arm; 32. welding gun; 33. cooling channel; 34. water outlet pipe. DETAILED DESCRIPTION

[0034] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0035] like Figure 1-Figure 10 The shown general tooling for welding corrugated guard plates for industrial guardrails comprises a base 1, the top of the base 1 is symmetrically slidably connected with a placement seat 12, the top shapes of the two placement seats 12 are composed of two arc grooves and an arc convex block, and the two placement seats 12 are provided with an extrusion adjustment mechanism, a welding mechanism is provided at the middle of the top of the base 1, and a cooling mechanism is provided on the welding mechanism, and a docking mechanism is provided at the bottom of the base 1. The extrusion adjustment mechanism is provided to facilitate welding of the corrugated guard plate body 21 and ensure the efficiency and effect of welding. The cooling mechanism can cool down the heat generated by welding, and the docking mechanism can ensure that the corrugated guard plate body 21 is in close contact with each other to ensure the welding effect;

[0036] like Figure 5-Figure 8 As shown, the extrusion adjustment mechanism includes adjustment grooves 23 symmetrically arranged at one end of the placement seat 12 close to each other, one end of the four adjustment grooves 23 is connected with a square groove 27, both ends of the four adjustment grooves 23 are provided with guide grooves 24, the inner walls of the four groups of guide grooves 24 are provided with circular columns 29 sliding therein, and the four groups of circular columns 29 are fixedly connected with adjustment plates 20, and the top ends of the four adjustment plates 20 close to each other are fixedly connected with alignment blocks 25 and are used to position and block the corrugated guard plate body 21, and ensure that the docking position of the corrugated guard plate body 21 is located directly below the welding mechanism;

[0037] like Fig. 9 As shown, the extrusion adjustment mechanism also includes an extrusion plate 7 arranged at the top of the placement seat 12. The bottom ends of the two extrusion plates 7 are symmetrically fixedly connected with fixed connecting columns 30 and extend through the placement seat 12 to the square groove 27. The bottom ends of the four fixed connecting columns 30 are fixedly connected with movable slides 26. The four movable slides 26 are all slidably connected to the adjustment plate 20. When the extrusion plate 7 moves downward, it will carry the circular columns 29 at both ends of the adjustment plate 20 and move downward along the trajectory of the guide groove 24, and make the alignment block 25 away from the corrugated guard plate body 21.

[0038] like Figure 1 , Figure 3 As shown, the extrusion adjustment mechanism also includes an L-shaped fixing plate 2 symmetrically fixedly connected to the top of the placement seat 12, and two groups of L-shaped fixing plates 2 are fixedly connected to a top plate 3 at one end close to each other, and a hydraulic rod 5 is fixedly passed through the middle of the top of the two top plates 3, and the telescopic ends of the two hydraulic rods 5 are fixedly connected to the extrusion plate 7. The hydraulic rod 5 moves the extrusion plate 7 downward and contacts the top of the extrusion fixed corrugated guard plate body 21, thereby completing the position limiting of the corrugated guard plate body 21.

[0039] like Figure 3-Figure 8 As shown, the bottom ends of the two extrusion plates 7 are composed of two arc grooves and an arc convex block, and are adapted to the top shape of the corrugated guard plate body 21. The top ends of the two extrusion plates 7 correspond to both sides of the hydraulic rod 5 and are fixedly connected with guide columns 6 and penetrate the top plate 3. The arrangement of the guide columns 6 can prevent the extrusion plates 7 from rotating during the lifting process.

[0040] like Figure 2 , Fig.10 As shown, the welding mechanism includes a fixing frame 4 fixedly connected to the middle of the top of the base 1, one end of the fixing frame 4 is fixedly connected to a motor 13, a driving end of the motor 13 is fixedly connected to a threaded rod 16, and the other end of the threaded rod 16 is rotatably connected to the fixing frame 4. The motor 13 is a prior art, and the threaded rod 16 is rotated by the motor 13.

[0041] like Figure 3 , Fig.10 As shown, the outer wall of the threaded rod 16 is threadedly connected with an adjusting slide bar 17, and the adjusting slide bar 17 is slidably connected with the fixing frame 4. A mechanical arm 31 is fixedly installed at the bottom end of the adjusting slide bar 17, and a welding gun 32 is fixedly installed at the upper end of the mechanical arm 31. The welding head of the welding gun 32 corresponds to the gap generated by the docking of the corrugated guard plate body 21. The adjusting slide bar 17 can be moved by the thread effect of the threaded rod 16, and it can be limited by the fixing frame 4, and the adjusting slide bar 17 can move with the mechanical arm 31 and the welding gun 32 when moving, and the docking part is welded by the welding gun 32, and the welding gun 32 can emit laser for welding.

[0042] like Fig.10 As shown, the cooling mechanism includes a fixed block 22 fixedly connected to the inner side of the corresponding fixing frame 4 at the top of the base 1. There are four fixed blocks 22 and they are symmetrically distributed about the center line of the cooling plate 19. The tops of the four fixed blocks 22 are fixedly connected to the cooling plate 19. The cooling plate 19 is provided with a cooling channel 33 inside for the flow of cooling water. The two ends of the cooling plate 19 are respectively fixed with an inlet pipe 18 and an outlet pipe 34. The inlet pipe 18 is used for the inflow of cooling water, and the outlet pipe 34 is used for the discharge of cooling water. The shape of the cooling plate 19 is adapted to the shape of the bottom end of the corrugated guard plate body 21, so each weld can be evenly cooled, thereby ensuring the welding effect and improving the welding efficiency. The inlet pipe 18 and the outlet pipe 34 are provided to keep the cooling water in the cooling channel 33 in a flowing state, thereby ensuring the cooling effect.

[0043] like Figure 1 , Figure 2 , Figure 6As shown, the docking mechanism includes a buffer groove 28 opened at the bottom of the placement seat 12, and the inner walls of the two buffer grooves 28 are slidably connected with the moving plate 8, and a plurality of buffer springs 14 are fixedly connected between the two groups of moving plates 8 and the buffer grooves 28. The bottom end of the base 1 is symmetrically penetrated with square holes 15, and the inner walls of the two square holes 15 are both set on the outer wall of the moving plate 8. The setting of the buffer spring 14 can reduce the clamping force during docking, avoid excessive clamping force, and prevent extrusion deformation at the docking point. The material of each buffer spring 14 is the same, so the elastic force displayed is the same.

[0044] like Figure 1 , Figure 2 As shown, the docking mechanism includes an electric push rod 10 fixedly connected to the middle of the bottom end of the base 1, and the telescopic end of the electric push rod 10 is fixedly connected to a lifting plate 11, and both ends of the lifting plate 11 are symmetrically rotatably connected to connecting plates 9, and two sets of connecting plates 9 are rotatably connected to the moving plate 8. The electric push rod 10 moves the lifting plate 11 up and down, and due to the setting of the connecting plate 9, the moving plate 8 can be moved synchronously, so that the buffer spring 14 can be synchronously squeezed, and the placement seat 12 can be moved synchronously, and the moving distance is the same.

[0045] Working principle: First, the extrusion plate 7 and the placement seat 12 are separated, and the corrugated guard plate body 21 is placed between the extrusion plate 7 and the placement seat 12. At this time, the contact between the alignment block 25 and the corrugated guard plate body 21 can keep the length reserved for docking consistent. Then, the hydraulic rod 5 is started to move the extrusion plate 7 downward, and the moving slide plate 26 is moved by the fixed connecting column 30. Since the moving slide plate 26 and the adjustment plate 20 are slidably connected, and with the cooperation of the guide groove 24 and the circular column 29, the adjustment plate 20 can start to shrink and move into the adjustment groove 23 after descending a certain distance, so as to avoid the obstruction of the alignment block 25 when the corrugated guard plate body 21 is docked, so as to ensure the docking effect. At the same time, the extrusion plate 7 and the placement seat 12 will clamp and fix the corrugated guard plate body 21;

[0046] At this time, the electric push rod 10 is started to move the lifting plate 11 downward, and the moving plate 8 can be synchronously moved in the approaching direction through the cooperation of the connecting plate 9, so that the buffer spring 14 can be squeezed at the same time, and the placement seat 12 can be synchronously moved in the approaching direction, and the corrugated guard plate bodies 21 on both sides are in contact, and the contact position of the corrugated guard plate body 21 is just below the welding gun 32;

[0047] At this time, the starter motor 13 rotates the threaded rod 16, and the thread effect of the threaded rod 16 can move the adjustment slide rod 17 and move the mechanical arm 31, so that the weld gap can be welded, and the welding gun 32 is always perpendicular to the weld gap during welding, and changes according to the trajectory change of the weld gap to complete the welding operation, ensure the welding effect, improve the welding quality, and ensure the firmness of the welding;

[0048] During welding, cooling water is injected into the cooling channel 33 through the water inlet pipe 18, and then discharged through the water outlet pipe 34 to ensure the flow of cooling water. The cooling water can cool the welding position and its surrounding areas during welding, reduce the range of the heat-affected zone, thereby protecting the performance of the corrugated guard plate, preventing material performance degradation or cracks caused by overheating, and improving the quality of the welding point of the corrugated guard plate body 21.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A universal welding tool for corrugated guard plates for industrial guardrails, comprising a base (1), characterized in that: The top of the base (1) is symmetrically and slidably connected to a placement seat (12), the top of the two placement seats (12) are both composed of two arc-shaped grooves and an arc-shaped protrusion, and the two placement seats (12) are both provided with an extrusion adjustment mechanism, a welding mechanism is provided at the middle of the top of the base (1), and a cooling mechanism is provided on the welding mechanism, and a docking mechanism is provided at the bottom of the base (1); The extrusion adjustment mechanism comprises adjustment grooves (23) symmetrically arranged at one end of the placement seat (12) close to each other, one end of each of the four adjustment grooves (23) is connected to a square groove (27), both ends of each of the four adjustment grooves (23) are provided with guide grooves (24), the inner walls of the four groups of guide grooves (24) are provided with circular columns (29) sliding therein, and adjustment plates (20) are fixedly connected between the four groups of circular columns (29), and the top ends of the four adjustment plates (20) are fixedly connected to one side close to each other and are used to position and block the corrugated guard plate body (21) and ensure that the position where the corrugated guard plate body (21) is connected is located directly below the welding mechanism; The extrusion adjustment mechanism also includes an extrusion plate (7) arranged at the top of the placement seat (12), the bottom ends of the two extrusion plates (7) are symmetrically fixedly connected with fixed connecting columns (30) and penetrate the placement seat (12) to extend into the square groove (27), the bottom ends of the four fixed connecting columns (30) are fixedly connected with movable slides (26), and the four movable slides (26) are slidably connected to the adjustment plate (20). When the extrusion plate (7) moves downward, it will move the circular columns (29) at both ends of the adjustment plate (20) downward along the trajectory of the guide groove (24), and make the alignment block (25) away from the corrugated guard plate body (21).

2. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 1 is characterized by: The extrusion adjustment mechanism also includes an L-shaped fixing plate (2) symmetrically fixedly connected to the top of the placement seat (12); two groups of L-shaped fixing plates (2) are fixedly connected to a top plate (3) at one end close to each other; hydraulic rods (5) are fixedly passed through the middle of the top of the two top plates (3); and the telescopic ends of the two hydraulic rods (5) are fixedly connected to the extrusion plate (7).

3. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 2 is characterized by: The bottom ends of the two extrusion plates (7) are each composed of two arc-shaped grooves and an arc-shaped protrusion, and are adapted to the top end shape of the corrugated guard plate body (21). The top ends of the two extrusion plates (7) correspond to both sides of the hydraulic rod (5) and are fixedly connected with guide columns (6) that penetrate the top plate (3).

4. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 1 is characterized by: The welding mechanism comprises a fixing frame (4) fixedly connected to the middle part of the top end of the base (1), one end of the fixing frame (4) is fixedly connected to a motor (13), a driving end of the motor (13) is fixedly connected to a threaded rod (16), and the other end of the threaded rod (16) is rotatably connected to the fixing frame (4).

5. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 4 is characterized by: The outer wall of the threaded rod (16) is threadedly connected to an adjusting slide rod (17), the adjusting slide rod (17) and the fixing frame (4) are slidably connected, a mechanical arm (31) is fixedly mounted on the bottom end of the adjusting slide rod (17), a welding gun (32) is fixedly mounted on the upper end of the mechanical arm (31), and a welding head of the welding gun (32) corresponds to a gap formed by the butt joint with the corrugated guard plate body (21).

6. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 1 is characterized by: The cooling mechanism comprises a fixed block (22) fixedly connected to the inner side of a corresponding fixed frame (4) at the top end of the base (1), wherein the number of the fixed blocks (22) is four and they are symmetrically distributed about the center line of the cooling plate (19), the top ends of the four fixed blocks (22) are fixedly connected to a cooling plate (19), and a cooling flow channel (33) is provided inside the cooling plate (19) for the flow of cooling water.

7. The universal welding tool for corrugated guard plates for industrial guardrails according to claim 6 is characterized by: A water inlet pipe (18) and a water outlet pipe (34) are fixedly passed through both ends of the cooling plate (19), the water inlet pipe (18) is used for the inflow of cooling water, and the water outlet pipe (34) is used for the discharge of cooling water.

8. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 1 is characterized by: The docking mechanism comprises a buffer groove (28) provided at the bottom end of the placement seat (12), the inner walls of two buffer grooves (28) being slidably connected with movable plates (8), and a plurality of buffer springs (14) being fixedly connected between the two groups of movable plates (8) and the buffer grooves (28).

9. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 8, characterized in that: The bottom end of the base (1) is symmetrically provided with square holes (15), and the inner walls of the two square holes (15) are both arranged on the outer wall of the movable plate (8).

10. The universal welding tool for corrugated guard plate for industrial guardrail according to claim 8, characterized in that: The docking mechanism comprises an electric push rod (10) fixedly connected to the middle of the bottom end of the base (1); the telescopic end of the electric push rod (10) is fixedly connected to a lifting plate (11); both ends of the lifting plate (11) are symmetrically rotatably connected to connecting plates (9); and two sets of connecting plates (9) are rotatably connected to the moving plate (8).

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