Steel welding device with positioning function

Abstract

The invention relates to the technical field of steel welding, in particular to a steel welding device with a positioning function, which comprises a base, a supporting plate fixed on the surface of the base, a rotating shaft arranged on the surface of the supporting plate, a fishing gull rotating block fixed on the surface of the rotating shaft, an extending block fixed on the surface of the rotating block, and an adjusting ring arranged on the surface of the extending block. An adjusting circle is arranged in the adjusting ring; the device has the beneficial effects that an insertion rod is pushed by a handle to move in a vertical groove, so that the insertion rod is inserted into two groups of vertical steel pipes, an extension rod and a jacking rod move along with the insertion rod, the extension rod and the jacking rod are moved out of a storage groove, and a spring in the extension rod jacks the end part of the jacking rod, so that the jacking rod extends out; the extending rods and the jacking rods are inserted into the steel pipes along with the inserting rods, the two sets of jacking rods are symmetrically arranged, the two sets of jacking rods abut against the interiors of the steel pipes, and the positions of the steel pipes are adjusted so that the centers of the two sets of steel pipes can be aligned.

Description

Technical Field

[0001] The present invention relates to the technical field of steel welding, in particular to a steel welding device with a positioning function. Background Art

[0002] Steel refers to materials such as ingots and billets that are formed into defined shapes, sizes, and properties through pressure processing. Most steel processing involves pressure working, which causes the steel to undergo plastic deformation. Depending on the temperature at which steel is processed, it can be categorized into cold working and hot working. Based on the cross-sectional shape, steel can be divided into four main categories: profiles, plates, pipes, and metal products.

[0003] In the prior art, the patent number is CN220971281U, a steel welding fixture includes a fixed block, one side of the fixed block is fixedly connected to a first limit block, the surface of the first limit block is slidably connected to a semicircular block, both sides of the surface of the semicircular block are fixedly connected to a raised block, the surface of the raised block is slidably connected to a second limit block, one side of the second limit block is fixedly connected to a movable block, and both sides of the surface of the movable block are fixedly connected to rubber pads. The steel welding fixture, through the arrangement of the fixed block, the first limit block, the semicircular block, the raised block, the second limit block, and the movable block rubber pad, first places the steel on the base so that one side is close to the anti-slip plate, and then turns the knob to make the threaded rod rotate on the surface of the base, and at the same time drives the fixed block to move toward the steel through the bearing. As the fixed block slowly approaches the steel, the rubber pad will first contact the steel surface, and as it continues to approach.

[0004] However, when welding existing steel pipes, the steel pipes are directly clamped by a clamping assembly. Since the two sets of welded steel pipes may have different sizes, it is difficult to adjust the position of the steel pipes when the two sets of steel pipes need to be welded in a center-aligned manner, resulting in low welding efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a steel welding device with a positioning function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a steel welding device with a positioning function, comprising: The base has a support plate fixed on its surface, a rotating shaft is provided on the surface of the supporting plate, a Yu'ou rotating block is fixed on the surface of the rotating shaft, an extension block is fixed on the surface of the rotating block, an adjustment ring is provided on the surface of the extension block, an adjustment circle is provided inside the adjustment ring, a U-shaped rod is fixed on the surface of the adjustment circle, a second top holding plate is fixed to one end of the U-shaped rod, a clamping ring is fixed to the other end of the U-shaped rod, a first force-bearing plate is fixed on the surface of the U-shaped rod, and a second top holding plate and a first top holding plate are provided on the surface of the extension block.

[0007] Preferably, both ends of the rotating shaft are inserted into the inside of the support plate, the rotating shaft can rotate between the two groups of support plates, a motor is fixed to the surface of the support plate, the motor can drive the rotating shaft to rotate, and the rotating block rotates with the rotating shaft, a connecting plate is fixed to the surface of the base, a vertical tube is fixed to the surface of the connecting plate, a vertical groove is provided inside the vertical tube, a connecting rod is inserted in the vertical groove, the connecting rod can be lifted and moved in the vertical groove, and a slot and a storage slot are provided on the surface of the vertical tube.

[0008] Preferably, an extension rod is fixed to the surface of the connecting rod, and a supporting rod is inserted in the extension rod. The supporting rod can be telescopically moved inside the extension rod. A spring is provided inside the extension rod, one end of the spring is connected to the end of the supporting rod, and the other end is connected to the inside of the extension rod. The spring has a thrust on the supporting rod, so that the supporting rod extends from the inside of the extension rod. When the connecting rod is inserted into the vertical groove, the extension rod and the supporting rod are stored in the storage groove. A handle is fixed on the surface of the connecting rod, and the connecting rod moves with the handle. The handle is inserted in the slot and the handle can move in the slot.

[0009] Preferably, a steel pipe is inserted into the interior of the clamping ring, a limiting rod is inserted into the surface of the clamping ring, two groups of limiting rods are provided, a screw is threaded onto the surface of the clamping ring, a clamping plate is provided at the end of the screw, the end of the limiting rod is fixed to the surface of the clamping plate, the limiting rod moves with the clamping plate, the end of the screw is inserted into the interior of the clamping plate, and a limiting ring is provided at the end of the screw, the limiting ring is located inside the clamping plate, the end of the screw can rotate inside the clamping plate, and the clamping plate moves with the screw, a clamping hole is opened inside the clamping ring, the clamping plate is located in the clamping hole, and the steel pipe is located in the clamping hole.

[0010] Preferably, a support frame is fixed to the surface of the rotating block, a cylinder is fixed to the surface of the support frame, piston rods are provided at both ends of the cylinder, the cylinder can drive the piston rod to move telescopically, a second top holding plate is fixed to the end of the piston rod, the second top holding plate moves laterally with the piston rod, an L-shaped rod is fixed to the surface of the piston rod, the L-shaped rod moves with the piston rod, a through groove is provided on the surface of the rotating block, the L-shaped rod is inserted in the through groove, the L-shaped rod can move in the through groove, and the other end of the L-shaped rod is fixed to the first top holding plate.

[0011] Preferably, an adjustment ring is fixed on the surface of the rotating block, a circular hole and an adjustment hole are opened inside the adjusting ring, the diameter of the adjustment hole is larger than the diameter of the circular hole, an adjustment circle is fixed on the surface of the U-shaped rod, the adjustment circle is located in the adjustment hole, the diameter of the circular hole is larger than the diameter of the U-shaped rod, the diameter of the adjustment circle is larger than the diameter of the circular hole, the diameter of the adjustment hole is larger than the diameter of the adjustment circle, the adjustment circle can move in the adjustment hole, and the U-shaped rod can move in the circular hole.

[0012] Preferably, a second force-bearing plate is fixed to the other end of the U-shaped rod, and the second supporting plate is supported on the surface of the second force-bearing plate as the piston rod moves, so that the second force-bearing plate remains stable. The L-shaped rod drives the first supporting plate to move as the piston rod moves, and a first force-bearing plate is fixed to the surface of the U-shaped rod, and the first supporting plate is supported on the surface of the first force-bearing plate after moving, so that the first force-bearing plate remains stable. The stability of the first and second force-bearing plates keeps the U-shaped rod stable.

[0013] Preferably, two groups of clamping rings are provided, and the two groups of steel pipes are respectively inserted into the clamping holes on the surfaces of the two groups of clamping rings, and the ends of the two groups of steel pipes are supported against each other.

[0014] Preferably, after the rotating shaft rotates, the rotating block rotates along with the rotating shaft, and the steel pipe rotates along with the rotating block, so that the two groups of steel pipes are in a vertical state, the connecting rod is located at the bottom of the two groups of steel pipes, and the connecting rod rises to be inserted into the interior of the steel pipe, and the inner diameter of the steel pipe is larger than the diameter of the connecting rod.

[0015] Preferably, when the rotating block drives the steel pipes to rotate and is in a horizontal state, the ends of the two groups of steel pipes can be welded by welding equipment.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes that the motor drives the rotating shaft to rotate, and the rotating block rotates with the rotating shaft, so that the two groups of steel pipes are in a vertical state, the cylinder drives the piston rod to move, and the second supporting plate moves with the piston rod, and the second supporting plate no longer supports the surface of the second force-bearing plate, so that the adjusting circle located in the adjusting hole can move in the adjusting hole, the U-shaped rod moves with the adjusting hole, and the clamping ring at the end of the U-shaped rod moves with the U-shaped rod, so that the steel pipe inside the clamping ring can be adjusted. The plug-in rod is pushed in the vertical slot by the handle, so that the plug-in rod is inserted into the interior of the two groups of vertical steel pipes, the extension rod and the supporting rod move with the plug-in rod, and the extension rod and the supporting rod are removed from the storage slot, and the spring inside the extension rod supports the end of the supporting rod, so that the supporting rod extends, and the extension rod and the supporting rod are both inserted into the interior of the steel pipe along with the plug-in rod, and the supporting rod is provided with two symmetrical groups, and the two groups of supporting rods are both supported inside the steel pipe, and the position of the steel pipe is adjusted so that the centers of the two groups of steel pipes are aligned. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the splice rod of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention.

[0021] Figure 5 This is a schematic structural diagram of the clamping assembly of the present invention from another perspective.

[0022] Figure 6 It is a schematic diagram of the structure of the clamping ring of the present invention.

[0023] Figure 7 for Figure 4 A magnified schematic diagram of the structure in the middle.

[0024] Figure 8 It is a schematic diagram of the cross-sectional structure of the clamping assembly of the present invention.

[0025] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point B in the middle.

[0026] In the figure: base 1, connecting plate 2, motor 3, rotating shaft 4, rotating block 5, extension rod 6, plug-in rod 7, holding rod 8, storage groove 9, slot 10, handle 11, vertical pipe 12, vertical slot 13, clamping ring 14, steel pipe 15, U-shaped rod 16, extension block 17, through slot 18, screw 19, limit rod 20, clamping plate 21, clamping hole 22, first force plate 23, first holding plate 24, L-shaped rod 25, adjusting ring 26, second force plate 27, second holding plate 28, cylinder 29, round hole 30, adjustment hole 31, adjustment circle 32, support frame 33, piston rod 34, support plate 35. DETAILED DESCRIPTION

[0027] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit 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.

[0028] See also Figures 1 to 9 , the present invention provides a technical solution: Example 1: A steel welding device with a positioning function, comprising: a base 1, a support plate 35 is fixed to the surface of the base 1, a rotating shaft 4 is provided on the surface of the supporting plate 35, a rotating block 5 is fixed to the surface of the rotating shaft 4, an extension block 17 is fixed to the surface of the rotating block 5, an adjusting ring 26 is provided on the surface of the extension block 17, an adjusting circle 32 is provided inside the adjusting ring 26, a U-shaped rod 16 is fixed to the surface of the adjusting circle 32, one end of the U-shaped rod 16 is fixed to the second top holding plate 28, and the other end of the U-shaped rod 16 is fixed to the There is a clamping ring 14, a first force-bearing plate 23 is fixed on the surface of the U-shaped rod 16, a second supporting plate 28 and a first supporting plate 24 are provided on the surface of the extension block 17, and the rotating block 5 rotates with the rotating shaft 4, so that the two groups of steel pipes 15 are in a vertical state, and the cylinder 29 drives the piston rod 34 to move, and the second supporting plate 28 moves with the piston rod 34. The second supporting plate 28 no longer supports the surface of the second force-bearing plate 27, so that the adjustment circle 32 located in the adjustment hole 31 can move in the adjustment hole 31.

[0029] Example 2: On the basis of Example 1, both ends of the rotating shaft 4 are inserted into the inside of the support plate 35, and the rotating shaft 4 can rotate between the two groups of support plates 35. The surface of the support plate 35 is fixed with a motor 3, and the motor 3 can drive the rotating shaft 4 to rotate, and the rotating block 5 rotates with the rotating shaft 4. The surface of the base 1 is fixed with a connecting plate 2, and the surface of the connecting plate 2 is fixed with a vertical pipe 12. The interior of the vertical pipe 12 is provided with a vertical groove 13, and a connecting rod 7 is inserted in the vertical groove 13. The connecting rod 7 can be lifted and moved in the vertical groove 13. The surface of the vertical pipe 12 is provided with a slot 10 and a storage slot 9. The surface of the rotating block 5 is fixed with a support frame 33, and the surface of the support frame 33 is fixed There is a cylinder 29, and piston rods 34 are provided at both ends of the cylinder 29. The cylinder 29 can drive the piston rod 34 to move telescopically. A second top holding plate 28 is fixed to the end of the piston rod 34, and the second top holding plate 28 moves laterally with the piston rod 34. An L-shaped rod 25 is fixed to the surface of the piston rod 34, and the L-shaped rod 25 moves with the piston rod 34. A through groove 18 is provided on the surface of the rotating block 5, and the L-shaped rod 25 is inserted into the through groove 18. The L-shaped rod 25 can move in the through groove 18. The other end of the L-shaped rod 25 is fixed to the first top holding plate 24, and an adjusting ring 26 is fixed to the surface of the rotating block 5. The interior of the adjusting ring 26 is provided with a circular hole 30 and an adjusting hole 31 The diameter of the adjustment hole 31 is larger than the diameter of the circular hole 30. An adjustment circle 32 is fixed on the surface of the U-shaped rod 16. The adjustment circle 32 is located in the adjustment hole 31. The diameter of the circular hole 30 is larger than the diameter of the U-shaped rod 16. The diameter of the adjustment circle 32 is larger than the diameter of the circular hole 30. The diameter of the adjustment hole 31 is larger than the diameter of the adjustment circle 32. The adjustment circle 32 can move in the adjustment hole 31, and the U-shaped rod 16 can move in the circular hole 30. The other end of the U-shaped rod 16 is fixed with a second force plate 27. The second holding plate 28 is held on the surface of the second force plate 27 after the piston rod 34 moves, so that the second force plate 27 remains stable. The L-shaped rod 25 moves with the piston rod 34. After the movement, the first holding plate 24 is driven to move. The first force-bearing plate 23 is fixed on the surface of the U-shaped rod 16. After the movement, the first holding plate 24 is supported on the surface of the first force-bearing plate 23, so that the first force-bearing plate 23 remains stable. The stability of the first force-bearing plate 23 and the second force-bearing plate 27 keeps the U-shaped rod 16 stable. The piston rod 34 drives the first holding plate 24 to move through the L-shaped rod 25, so that the first holding plate 24 is supported on the surface of the first force-bearing plate 23, and the second holding plate 28 is supported on the surface of the second force-bearing plate 27, stabilizing the position of the U-shaped rod 16, thereby stabilizing the position of the two groups of steel pipes 15, and the two groups of steel pipes 15 can be welded. The handle 11 pushes the plug rod 7 to move in the vertical slot 13, so that the plug rod 7 is plugged into the two sets of vertical steel pipes 15.

[0030] The interior of the clamping ring 14 is plugged with a steel pipe 15, and the surface of the clamping ring 14 is plugged with a limit rod 20. The limit rod 20 is provided with two groups. The surface of the clamping ring 14 is screwed with a screw 19, and the end of the screw 19 is provided with a clamping plate 21. The end of the limit rod 20 is fixed to the surface of the clamping plate 21, and the limit rod 20 moves with the clamping plate 21. The end of the screw 19 is plugged into the interior of the clamping plate 21, and the end of the screw 19 is provided with a limit ring. The limit ring is located inside the clamping plate 21, and the end of the screw 19 can rotate inside the clamping plate 21, and the clamping plate 21 moves with the screw 19. A clamping hole 22 is opened inside the clamping ring 14, and the clamping plate 21 is located at the clamping plate 21. The steel pipe 15 is located in the hole 22, and the steel pipe 15 is located in the clamping hole 22. The clamping ring 14 is provided with two groups. The two groups of steel pipes 15 are respectively inserted into the clamping holes 22 on the surfaces of the two groups of clamping rings 14, and the ends of the two groups of steel pipes 15 support each other. After the rotating shaft 4 rotates, the rotating block 5 rotates with the rotating shaft 4, and the steel pipe 15 rotates with the rotating block 5, so that the two groups of steel pipes 15 are in a vertical state. The connecting rod 7 is located at the bottom of the two groups of steel pipes 15, and the connecting rod 7 rises to be inserted into the interior of the steel pipe 15, and the internal diameter of the steel pipe 15 is larger than the diameter of the connecting rod 7. When the rotating block 5 rotates and drives the steel pipe 15 to rotate and is in a horizontal state, the ends of the two groups of steel pipes 15 can be welded by welding equipment.

[0031] The steel pipe 15 is inserted into the interior of the clamping ring 14, and the screw 19 is screwed. The screw 19 drives the clamping plate 21 to move in the clamping hole 22 to clamp the steel pipe 15 in the clamping hole 22. After the two groups of steel pipes 15 are clamped, the motor 3 drives the rotating shaft 4 to rotate, and the rotating block 5 rotates with the rotating shaft 4, so that the two groups of steel pipes 15 are in a vertical state. The cylinder 29 drives the piston rod 34 to move, and the second holding plate 28 moves with the piston rod 34. The second holding plate 28 is no longer supported on the surface of the second force-bearing plate 27, so that the adjustment circle 32 located in the adjustment hole 31 can move in the adjustment hole 31, and the U-shaped rod 16 moves with the adjustment hole 31. The clamping ring 14 at the end of the U-shaped rod 16 moves with the U-shaped rod 16, so that the steel pipe 15 inside the clamping ring 14 can be adjusted. The handle 11 pushes the plug rod 7 to move in the vertical slot 13, so that the plug rod 7 is inserted into the two groups of vertical steel pipes. When the cam 14 is in the closed position, the spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out of the receiving groove 9. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out of the receiving groove 9. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out of the receiving groove 9. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out. The spring 22 is pressed against the end of the support rod 8 and the support rod 8 is pulled out.

[0032] Although the above describes the illustrative specific embodiments of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.

Claims

1. A steel welding device with a positioning function, characterized in that: include: A base (1) is fixed with a support plate (35) on the surface of the base (1), a rotating shaft (4) is provided on the surface of the supporting plate (35), a rotating block (5) is fixed on the surface of the rotating shaft (4), an extension block (17) is fixed on the surface of the rotating block (5), an adjusting ring (26) is provided on the surface of the extension block (17), an adjusting circle (32) is provided inside the adjusting ring (26), a U-shaped rod (16) is fixed on the surface of the adjusting circle (32), one end of the U-shaped rod (16) is fixed with a second top holding plate (28), and the other end of the U-shaped rod (16) is fixed with a second top holding plate (28). A clamping ring (14) is fixed at one end, a first force-bearing plate (23) is fixed on the surface of the U-shaped rod (16), a second top holding plate (28) and a first top holding plate (24) are provided on the surface of the extension block (17), a connecting plate (2) is fixed on the surface of the base (1), a vertical pipe (12) is fixed on the surface of the connecting plate (2), a vertical groove (13) is provided inside the vertical pipe (12), a plug-in rod (7) is inserted in the vertical groove (13), an extension rod (6) is fixed on the surface of the plug-in rod (7), and a top holding rod (8) is inserted in the extension rod (6).

2. The steel welding device with positioning function according to claim 1, characterized in that: The two ends of the rotating shaft (4) are inserted into the interior of the support plate (35), and the rotating shaft (4) can rotate between the two groups of support plates (35). A motor (3) is fixed to the surface of the support plate (35), and the motor (3) can drive the rotating shaft (4) to rotate. The rotating block (5) rotates along with the rotating shaft (4), and the plug-in rod (7) can move up and down in the vertical groove (13). The surface of the vertical tube (12) is provided with a slot (10) and a receiving slot (9).

3. The steel welding device with positioning function according to claim 2, characterized in that: The supporting rod (8) can be telescopically moved inside the extension rod (6). A spring is provided inside the extension rod (6). One end of the spring is connected to the end of the supporting rod (8), and the other end is connected to the inside of the extension rod (6). The spring has a thrust on the supporting rod (8), so that the supporting rod (8) extends from the inside of the extension rod (6). When the plug-in rod (7) is plugged into the vertical groove (13), the extension rod (6) and the supporting rod (8) are stored in the storage groove (9). A handle (11) is fixed on the surface of the plug-in rod (7). The plug-in rod (7) moves with the handle (11). The handle (11) is plugged into the slot (10), and the handle (11) can move in the slot (10).

4. The steel welding device with positioning function according to claim 3, characterized in that: The interior of the clamping ring (14) is plugged with a steel pipe (15), and the surface of the clamping ring (14) is plugged with a limiting rod (20). Two groups of limiting rods (20) are provided. The surface of the clamping ring (14) is screwed with a screw rod (19), and the end of the screw rod (19) is provided with a clamping plate (21). The end of the limiting rod (20) is fixed to the surface of the clamping plate (21). The limiting rod (20) moves with the clamping plate (21), and the end of the screw rod (19) is fixed to the surface of the clamping plate (21). It is inserted into the interior of the clamping plate (21), and a limiting ring is provided at the end of the screw (19), the limiting ring is located inside the clamping plate (21), the end of the screw (19) can rotate inside the clamping plate (21), and the clamping plate (21) moves along with the screw (19), a clamping hole (22) is opened inside the clamping ring (14), the clamping plate (21) is located in the clamping hole (22), and the steel pipe (15) is located in the clamping hole (22).

5. The steel welding device with positioning function according to claim 4, characterized in that: A support frame (33) is fixed on the surface of the rotating block (5), a cylinder (29) is fixed on the surface of the support frame (33), piston rods (34) are provided at both ends of the cylinder (29), the cylinder (29) can drive the piston rod (34) to move telescopically, a second top holding plate (28) is fixed to the end of the piston rod (34), the second top holding plate (28) moves laterally with the piston rod (34), an L-shaped rod (25) is fixed on the surface of the piston rod (34), the L-shaped rod (25) moves with the piston rod (34), a through groove (18) is opened on the surface of the rotating block (5), the L-shaped rod (25) is inserted into the through groove (18), the L-shaped rod (25) can move in the through groove (18), and the other end of the L-shaped rod (25) is fixed to the first top holding plate (24).

6. The steel welding device with positioning function according to claim 5, characterized in that: An adjusting ring (26) is fixed on the surface of the rotating block (5), a circular hole (30) and an adjusting hole (31) are provided inside the adjusting ring (26), the diameter of the adjusting hole (31) is larger than the diameter of the circular hole (30), an adjusting circle (32) is fixed on the surface of the U-shaped rod (16), the adjusting circle (32) is located in the adjusting hole (31), the diameter of the circular hole (30) is larger than the diameter of the U-shaped rod (16), the diameter of the adjusting circle (32) is larger than the diameter of the circular hole (30), the diameter of the adjusting hole (31) is larger than the diameter of the adjusting circle (32), the adjusting circle (32) can move in the adjusting hole (31), and the U-shaped rod (16) can move in the circular hole (30).

7. The steel welding device with positioning function according to claim 6, characterized in that: The other end of the U-shaped rod (16) is fixed with a second force-bearing plate (27), and the second supporting plate (28) is supported on the surface of the second force-bearing plate (27) as the piston rod (34) moves, so that the second force-bearing plate (27) remains stable. The L-shaped rod (25) drives the first supporting plate (24) to move as the piston rod (34) moves. The surface of the U-shaped rod (16) is fixed with a first force-bearing plate (23), and the first supporting plate (24) is supported on the surface of the first force-bearing plate (23) as the piston rod (34) moves, so that the first force-bearing plate (23) remains stable. The stability of the first force-bearing plate (23) and the second force-bearing plate (27) enables the U-shaped rod (16) to remain stable.

8. The steel welding device with positioning function according to claim 7, characterized in that: The clamping ring (14) is provided with two groups, and the two groups of steel pipes (15) are respectively inserted into the clamping holes (22) on the surfaces of the two groups of clamping rings (14), and the ends of the two groups of steel pipes (15) are mutually supported. The clamping plate (21) moves along with the screw (19). A clamping hole (22) is opened inside the clamping ring (14), the clamping plate (21) is located in the clamping hole (22), and the steel pipe (15) is located in the clamping hole (22). The clamping ring (14) is provided with two groups.

9. The steel material welding device with positioning function according to claim 8, characterized in that: After the rotating shaft (4) rotates, the rotating block (5) rotates along with the rotating shaft (4), and the steel pipe (15) rotates along with the rotating block (5), so that the two groups of steel pipes (15) are in a vertical state, the plug-in rod (7) is located at the bottom of the two groups of steel pipes (15), and the plug-in rod (7) rises to be plugged into the interior of the steel pipe (15), and the inner diameter of the steel pipe (15) is larger than the diameter of the plug-in rod (7).

10. The steel material welding device with positioning function according to claim 9, characterized in that: When the rotating block (5) rotates and drives the steel pipes (15) to rotate and is in a horizontal state, the ends of the two groups of steel pipes (15) can be welded by welding equipment.

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