A welding device for building a formwork support steel frame

Abstract

The present invention relates to the technical field of welding, and in particular to a welding device for building a steel skeleton supported by a template. By cooperating with a cylinder and a torsion spring, when four steel pipes are simultaneously moved to the welding position inside the channel steel, even if one of the steel pipes is longer than a preset value, it will not interfere with the positioning operation of the other three steel pipes, so that the other three steel pipes can be welded normally without the need for secondary positioning operation on the normal steel pipes, which is beneficial to improving production efficiency. In addition, an external force can be applied manually through the steel pipe to determine whether the length is too short, so that the too short steel pipe can be conveniently screened out. A welding device for building a steel skeleton supported by a template comprises a hydraulic telescopic rod, a connecting plate, a cylinder, a torsion spring, a fixing block one, a fixing block two and a fixing assembly; a plurality of hydraulic telescopic rods are fixedly connected to the frame; the telescopic ends of all the hydraulic telescopic rods are commonly fixedly connected to the connecting plate; a plurality of cylinders are rotatably connected to the connecting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and more specifically, to a welding device for building a template support steel frame. Background Art

[0002] When pouring a bridge on site, it is necessary to build a pouring mold first. The existing pouring mold is usually composed of a steel frame and a wooden board. The existing technology will weld four steel pipes to the inside of the bent H-shaped steel to form a steel frame, and the angles of the four steel pipes on the inside of the H-shaped steel are different to ensure the supporting performance of the steel frame. There is currently no special equipment for welding such steel frames. During welding, it is necessary to manually position the steel pipes one by one on the inside of the H-shaped steel and then perform the welding operation. The operation process is cumbersome and inefficient. Summary of the invention

[0003] In order to overcome the shortcomings that there is no special equipment for welding such steel frames, during welding, it is necessary to manually position the steel pipes one by one on the inside of the H-steel and then perform the welding operation, which is cumbersome and inefficient. The present invention provides a welding device for building a template support steel frame.

[0004] Technical Solution

[0005] A welding device for constructing a formwork-supported steel skeleton comprises a frame, an electric clamp and a movable clamp; the steel skeleton is supported by welding four steel pipes to the inner side of a bent H-shaped steel; an electric clamp is installed on the frame; the electric clamp is used to clamp and fix the H-shaped steel; the movable clamp is used to clamp four steel pipes; the movable clamp can drive the four steel pipes to move simultaneously to the welding positions inside the H-shaped steel; the movable clamp comprises a hydraulic telescopic rod, a connecting plate, a cylinder, a torsion spring, a fixed block 1, a fixed block 2 and a fixed assembly; a plurality of hydraulic telescopic rods are fixedly connected to the frame; the telescopic ends of all the hydraulic telescopic rods are commonly fixedly connected to a connecting plate; a plurality of cylinders are rotatably connected to the connecting plate; a torsion spring is fixedly connected between each cylinder and the connecting plate, and the torsion spring is fixedly connected to the connecting plate; a fixed block 1 is fixedly connected to each cylinder; a fixed block 2 is rotatably connected to each fixed block 1; a fixed assembly is connected to the fixed block 2, and the fixed assembly is used to lock the fixed block 2.

[0006] As a further preferred solution, the fixing assembly includes buckle 1 and buckle 2; each fixing block 2 is fixedly connected to a plurality of buckles 1; each fixing block 1 is fixedly connected to a plurality of buckles 2, and the buckles 2 are engaged with the corresponding buckles 1.

[0007] As a further preferred solution, a friction layer is provided on the inner side of both the fixing block 1 and the fixing block 2.

[0008] As a further preferred solution, a positioning seat is also included; the positioning seat is fixedly connected to the frame.

[0009] As a further preferred solution, the upper side surface of the positioning seat is configured as a smooth surface.

[0010] As a further preferred scheme, it also includes an auxiliary component; the auxiliary component is connected to the connecting plate; the auxiliary component includes a dial and a pointer; a number of dials are fixedly connected to the connecting plate, and the dials are located outside the corresponding cylinders; each cylinder is fixedly connected to a pointer, and the pointer points to the scale line of the corresponding dial.

[0011] As a further preferred scheme, it also includes an adjustment component; the adjustment component is connected to the connecting plate; the adjustment component includes a socket and a round rod; each fixed block is fixed with a plurality of sockets; each socket is plugged with a round rod; a plurality of fixing holes are opened on the connecting plate, and the round rods are inserted into the sockets through the corresponding fixing holes.

[0012] As a further preferred solution, a flange is provided at one end of the round rod away from the socket.

[0013] As a further preferred solution, one end of the round rod close to the socket is chamfered.

[0014] As a further preferred solution, the surface of the frame is coated with an anti-corrosion layer. Beneficial Effects

[0015] 1. Through the cooperation of the cylinder and the torsion spring, when the four steel pipes are simultaneously moved to the welding position inside the H-shaped steel, even if one of the steel pipes is longer than the preset value, it will not interfere with the positioning operation of the other three steel pipes, so that the other three steel pipes can be welded normally without the need for secondary positioning operation of the normal steel pipes, which is conducive to improving production efficiency. In addition, manual torsional force can be applied to the steel pipe to determine whether it is too short, so that the too short steel pipe can be easily screened out;

[0016] Second, the operator only needs to observe the dial and the pointer to determine whether the corresponding steel pipe needs to be welded. The operator does not need to monitor whether the steel pipe rotates during the positioning process, which is conducive to improving convenience and eliminating the misjudgment caused by manual monitoring. Compared with the use of monitoring equipment for monitoring, the structure of this method is simpler;

[0017] 3. The rotating fixed block 1 and the parts thereon are fixed by matching the socket and the round rod. At this time, the operator can free both hands to remove the long steel pipe. There is no need to deliberately keep the fixed block 1 stable while removing the long steel pipe, making the manual operation more convenient. At the same time, the dial and pointer used to judge whether the steel pipe is rotating can also be used to judge the direction of the torque on the round rod, which is conducive to manually applying a thrust opposite to the torque direction, so that the fixed block 1 completes the reset operation without manual groping;

[0018] The present invention also has the following beneficial effects:

[0019] One end of the round rod close to the socket is chamfered, making it easier for the round rod to be inserted into the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The schematic diagram of the structure of the welding equipment for building the template support steel frame of the present invention is shown;

[0021] Figure 2 The schematic diagram of the structure of the H-shaped steel and the steel pipe of the present invention is shown;

[0022] Figure 3 A schematic diagram showing the installation position of the fixing block 1 of the present invention is shown;

[0023] Figure 4 A schematic structural diagram of a fixing assembly of the present invention is shown;

[0024] Figure 5 A schematic diagram showing the installation position of the torsion spring of the present invention is shown;

[0025] Figure 6 A front view of a welding device for constructing a formwork support steel skeleton according to the present invention is shown.

[0026] The names and serial numbers of the parts in the figure are: 1-frame, 2-electric clamp, 3-hydraulic telescopic rod, 4-connecting plate, 5-cylinder, 6-torsion spring, 7-fixing block one, 8-fixing block two, 9-H-shaped steel, 10-steel pipe, 201-positioning seat, 202-dial, 203-pointer, 204-socket, 205-round rod, 206-buckle one, 207-buckle two, 91-zero scale line, 92-fixing hole. DETAILED DESCRIPTION

[0027] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1: A welding device for building a formwork support steel frame, such as Figure 1-Figure 6As shown, it includes a frame 1, an electric clamp 2 and a movable clamp; the steel skeleton is supported by welding four steel pipes 10 to the inner side of the bent H-shaped steel 9; the electric clamp 2 is installed on the frame 1; the electric clamp 2 is used to clamp and fix the H-shaped steel 9; the movable clamp is used to clamp the four steel pipes 10; the movable clamp can drive the four steel pipes 10 to move to the welding position inside the H-shaped steel 9 at the same time; the movable clamp includes a hydraulic telescopic rod 3, a connecting plate 4, a cylinder 5, a torsion spring 6, a fixing block 7, a fixing Fixed block 2 8 and fixed assembly; two hydraulic telescopic rods 3 are bolted to the frame 1; the telescopic ends of all hydraulic telescopic rods 3 are fixedly connected to a connecting plate 4, and the connecting plate 4 is set to an alloy material; four cylinders 5 are rotatably connected to the connecting plate 4; a torsion spring 6 is fixedly connected between each cylinder 5 and the connecting plate 4, and the torsion spring 6 is fixedly connected to the connecting plate 4; a fixed block 1 7 is fixedly connected to each cylinder 5; a fixed block 2 8 is rotatably connected to each fixed block 1 7; a fixed assembly is connected to the fixed block 2 8.

[0029] The fixing assembly includes a buckle 1 206 and a buckle 2 207 ; each fixing block 2 8 is fixedly connected to two buckles 1 206 ; each fixing block 1 7 is fixedly connected to two buckles 207 , and the buckle 2 207 is engaged with the corresponding buckle 1 206 .

[0030] The inner sides of the fixing block 1 7 and the fixing block 2 8 are provided with a friction layer for increasing the friction between the steel pipe 10 and improving the fixing effect of the steel pipe 10 to avoid the problem that the steel pipe 10 slides and causes position deviation and affects welding.

[0031] It also includes a positioning seat 201; the positioning seat 201 is bolted to the frame 1 and is used to position the lower end of the steel pipe 10.

[0032] The upper side surface of the positioning seat 201 is configured as a smooth surface to reduce the friction between the positioning seat 201 and the steel pipe 10 .

[0033] The working principle of the above embodiment is as follows:

[0034] First, the H-shaped steel 9 is clamped and fixed by the electric clamp 2, and the buckle 1 206 is pulled out of the buckle 2 207. Then, the fixing block 2 8 is driven to rotate counterclockwise based on the viewing angle from top to bottom, and then the four steel pipes 10 are moved to the inner side of the corresponding fixing block 1 7 and the fixing block 2 8, and the lower ends of the four steel pipes 10 are made flush with the inner bottom of the H-shaped steel 9. Then, the fixing block 2 8 is rotated clockwise to make the fixing block 2 8 fit the steel pipe 10 tightly, and the buckle 1 206 is re-inserted into the buckle 2 207, and the fixing block 1 7 and the fixing block 2 8 are fixed together, so that the steel pipe 10 is clamped by the cooperation of the fixing block 1 7 and the fixing block 2 8. At this time, the inclination of the steel pipe 10 is positioned by the cooperation of the fixing block 1 7 and the fixing block 2 8. The state of the H-shaped steel 9 and the four steel pipes 10 is as shown in FIG. Figure 6As shown, the preparation operation is completed.

[0035] After the preparation operation is completed, the multi-stage hydraulic telescopic rod 3 is started, and the multi-stage hydraulic telescopic rod 3 drives the connecting plate 4 and the parts thereon to move to the right, so that the four steel pipes 10 move to the inside of the H-shaped steel 9 at the same time. At this time, the position relationship between the H-shaped steel 9 and the four steel pipes 10 is as follows: Figure 2 As shown, the contact position of the H-shaped steel 9 and the steel pipe 10 is then manually welded. After welding is completed, the electric clamp 2 stops fixing the H-shaped steel 9, and then the buckle 1 206 is pulled out from the buckle 2 207, so that the fixing block 1 7 and the fixing block 2 8 stop clamping the steel pipe 10. Then, the welded H-shaped steel 9 and steel pipe 10 are manually taken out. When in use, the device can simultaneously position four steel pipes 10 on the inner side of the H-shaped steel 9, and then perform welding operations. Compared with the prior art, the welding efficiency is improved, and there is no need for manual control of the steel pipe 10 to remain stable during welding, thereby reducing the difficulty of welding.

[0036] When the steel pipe 10 is made manually using a cutting machine, some of the steel pipes 10 will be one to two centimeters longer or shorter than the preset value. In the process of clamping the steel pipe 10, since the spacing between the bent portion and the straight portion of the H-shaped steel 9 decreases from left to right, the multi-stage hydraulic telescopic rod 3 drives the four steel pipes 10 to move to the right. If one of the steel pipes 10 is longer than the preset value, the steel pipe 10 has not yet moved to the welding position, and its upper end has already contacted the inner top of the H-shaped steel 9, and cannot continue to move to the right, resulting in the four steel pipes 10 being unable to move to the specified position, so that the hydraulic telescopic rod 3 needs to drive the connecting plate 4 to move back to its original position, and then perform the clamping and positioning operation again, which is inefficient. Therefore, when the long steel pipe 10 has not yet moved to the welding position, and its upper end has already contacted the inner top of the H-shaped steel 9, the multi-stage hydraulic telescopic rod 3 drives the connecting plate 4 and the parts thereon to continue to move to the right. During this process, the H-shaped steel 9 blocks and limits the long steel pipe 10, forcing the cylinder 5 and the solid The fixed block 1 7, the fixed block 2 8, the long steel pipe 10, the buckle 1 206 and the buckle 2 207 rotate at the same time, and squeeze the torsion spring 6, so that the other three steel pipes 10 can move smoothly to the welding position, and then the three steel pipes 10 are manually welded to the H-shaped steel 9. After the welding is completed, the H-shaped steel 9 and the steel pipe 10 are taken out and placed separately in the defective area, and then the welding operation is continued on the next group of H-shaped steels 9 and steel pipes 10. At the same time, a small number of staff are assigned to perform manual repair welding operations on the H-shaped steels 9 and steel pipes 10 in the defective area. When in use, the cylinder 5 and the torsion spring 6 cooperate to make the four steel pipes 10 move to the welding position to be welded on the inner side of the H-shaped steel 9 at the same time. Even if one of the steel pipes 10 is longer than the preset value, it will not interfere with the positioning operation of the other three steel pipes 10, so that the other three steel pipes 10 can be welded normally, and there is no need to perform secondary positioning operations on the normal steel pipes 10, which is beneficial to improving production efficiency.

[0037] After positioning the steel pipe 10 to the inner side of the H-shaped steel 9, the two end faces of the steel pipe 10 of normal length are completely fitted with the H-shaped steel 9. At this time, the steel pipe 10 of normal length cannot be rotated even if an external force is applied manually. When the steel pipe 10 with a length lower than the preset value moves to the welding position, its upper end does not contact the H-shaped steel 9, that is, the short steel pipe 10 is not completely stuck. At this time, the short steel pipe 10 can be rotated by applying an external force manually. Therefore, before welding, a torsional force is applied manually to the steel pipe 10 to be welded. If the steel pipe 10 cannot be rotated, it means that the length of the steel pipe 10 is normal and the welding operation can continue. If the steel pipe 10 can be rotated, it means that the length of the steel pipe 10 is too short and the welding operation of the steel pipe 10 should be skipped.

[0038] During the preparation operation, it is relatively difficult to manually position the lower end of the steel pipe 10 to be flush with the inner bottom of the H-shaped steel 9. Therefore, a positioning seat 201 is set on the frame 1, and the upper side surface of the positioning seat 201 is flush with the inner bottom of the H-shaped steel 9. When the steel pipe 10 is manually placed between the fixing block 1 7 and the fixing block 2 8, the steel pipe 10 is pushed to move along the axial direction of the fixing block 1 7 so that the lower end of the steel pipe 10 contacts the positioning seat 201, and then the steel pipe 10 is clamped by the fixing block 1 7 and the fixing block 2 8. At this time, the lower end of the steel pipe 10 is quickly positioned by the positioning seat 201, which is more convenient and accurate than manual positioning.

[0039] According to the above working principle, we know that the present invention has the following effects:

[0040] By cooperating with the cylinder 5 and the torsion spring 6, when the four steel pipes 10 are simultaneously moved to the welding position inside the H-shaped steel 9, even if one of the steel pipes 10 is longer than the preset value, it will not interfere with the positioning operation of the other three steel pipes 10, so that the other three steel pipes 10 can be welded normally, and there is no need to perform secondary positioning operation on the normal steel pipes 10, which is beneficial to improving production efficiency. In addition, a torsional external force can be applied manually to the steel pipe 10 to determine whether it is too short, so that the too short steel pipe 10 can be easily screened out.

[0041] Embodiment 2: Based on embodiment 1, Figure 4 As shown, an auxiliary component is also included; an auxiliary component is connected to the connecting plate 4; the auxiliary component includes a dial 202 and a pointer 203; four dials 202 are bolted to the connecting plate 4, and the dials 202 are located on the outside of the corresponding cylinder 5, the dials 202 can be set to plastic material, and the dials 202 can also be set to metal material; each cylinder 5 is fixed with a pointer 203, the pointer 203 points to the scale line on the corresponding dial 202, which can be used to assist manual judgment whether the steel pipe 10 is rotating.

[0042] The working principle of the above embodiment is as follows:

[0043] During the rotation of the long steel pipe 10 described in Example 1:

[0044] When the cylinder 5, the fixing block 1 7, the fixing block 2 8, the long steel pipe 10, the buckle 1 206 and the buckle 2 207 rotate at the same time, the cylinder 5 drives the pointer 203 to rotate, so that the pointer 203 is no longer aligned with the zero scale line 91 on the dial 202. When performing the welding operation, the human can manually observe whether the pointer 203 is aligned with the zero scale line 91 to determine whether the corresponding steel pipe 10 rotates, thereby determining whether the steel pipe 10 rotates, and then determining whether a welding operation is required, which is conducive to improving convenience.

[0045] According to the above working principle, we know that the present invention has the following effects:

[0046] A person only needs to observe the dial 202 and the pointer 203 to determine whether the corresponding steel pipe 10 needs to be welded. A person does not need to monitor whether the steel pipe 10 rotates during the positioning process, which is conducive to improving convenience and can also eliminate misjudgment caused by manual monitoring. Compared with the use of monitoring equipment for monitoring, the structure of this method is simpler.

[0047] Embodiment 3: Based on embodiment 2, Figure 4 As shown, it also includes an adjustment component; the connection plate 4 is connected to the adjustment component; the adjustment component includes a socket 204 and a round rod 205; each fixed block 7 is fixedly connected to two sockets 204; each socket 204 is plugged with a round rod 205; a plurality of fixing holes 92 are opened on the connection plate 4, and the round rod 205 is inserted into the socket 204 through the corresponding fixing holes 92. After the round rod 205 is inserted into the socket 204, the fixed block 2 8 can be locked.

[0048] A flange is provided at one end of the round rod 205 away from the socket 204 , so that it is easier to manually insert and remove the round rod 205 .

[0049] One end of the round rod 205 close to the socket 204 is chamfered, so that the round rod 205 is easier to insert into the socket 204 .

[0050] The surface of the frame 1 is coated with an anti-corrosion layer.

[0051] The working principle of the above embodiment is as follows:

[0052] In the process of taking out the welded H-beam 9 and steel pipe 10 described in Example 1:

[0053] The long steel pipe 10 that is not involved in welding is still located inside the H-shaped steel 9. When it is taken out together, the long steel pipe 10 will fall to the ground and injure the feet of the transporter, which poses a certain safety hazard. Therefore, it is necessary to take out the long steel pipe 10 first, and then take out the welded H-shaped steel 9 and steel pipe 10. At this time, the long steel pipe 10 is manually rotated, and the long steel pipe 10 drives the corresponding cylinder 5, the fixing block 1 7 and the fixing block 2 8 to rotate, and compresses the corresponding torsion spring 6. When both ends of the steel pipe 10 move to the outside of the flange of the H-shaped steel 9, the round rod 205 is manually passed through the corresponding fixing hole 92 and inserted into the socket 204. In the process, the fixing block 2 8 is fixed, and then the buckle 1 206 is manually pulled away from the buckle 2 207 to stop locking the fixing block 1 7 and the fixing block 2 8 together, and then the long steel pipe 10 is taken out, and then the welded H-shaped steel 9 is used to take out the steel pipe 10 to prevent the steel pipe 10 from falling off. When in use, the socket 204 and the round rod 205 are matched to fix the rotated fixing block 1 7 and the parts thereon. At this time, the manual operation can free both hands to take out the long steel pipe 10, and there is no need to deliberately keep the fixing block 1 7 stable while taking out the long steel pipe 10, which makes the manual operation more convenient.

[0054] After the rotating fixed block 7 is fixed by the socket 204 and the round rod 205, the torsion force of the torsion spring 6 will act on the round rod 205, that is, the torsion force will press the round rod 205 against the socket 204, increasing the difficulty of manually pulling out the round rod 205. Therefore, the manual operation can be performed to determine the rotation direction of the fixed block 7 by observing whether the pointer 203 is offset in the clockwise direction or counterclockwise direction of the zero scale line 91, thereby determining the direction of the torsion force on the round rod 205, and then the fixed block 7 can be fixed. Block 7 applies a thrust in the opposite direction of the torque to counteract the torque and prevent the torque from pressing the round rod 205 against the socket 204, making it easier for humans to pull out the round rod 205 and complete the reset operation of the fixed block 7. When in use, the dial 202 and the pointer 203 used to determine whether the steel pipe 10 rotates can also be used to determine the direction of the torque exerted on the round rod 205, which is conducive to manually applying a thrust in the opposite direction of the torque to complete the reset operation of the fixed block 7 without manual groping.

[0055] According to the above working principle, we know that the present invention has the following effects:

[0056] The socket 204 and the round rod 205 cooperate to fix the rotated fixed block 7 and the parts thereon. At this time, the operator can free both hands to remove the long steel pipe 10. There is no need to deliberately keep the fixed block 7 stable while taking out the long steel pipe 10, which makes the manual operation more convenient. At the same time, the dial 202 and the pointer 203 used to judge whether the steel pipe 10 is rotated can also be used to judge the direction of the torque applied to the round rod 205, which is conducive to manually applying a thrust opposite to the torque direction, so that the fixed block 7 completes the reset operation without manual groping.

[0057] On the basis of the above technical effects, the present invention also has the following advantages:

[0058] One end of the round rod 205 close to the socket 204 is chamfered, so that the round rod 205 is easier to insert into the socket 204 .

[0059] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A welding device for constructing a formwork support steel skeleton, comprising a frame (1); the steel skeleton is supported by welding four steel pipes (10) to the inside of a bent H-shaped steel (9); an electric clamp (2) and a movable clamp are installed on the frame (1); the electric clamp (2) is used to clamp and fix the H-shaped steel (9); the movable clamp is used to clamp the four steel pipes (10); the movable clamp can drive the four steel pipes (10) to move simultaneously to the welding position inside the H-shaped steel (9); the characteristics are: The movable clamp comprises a hydraulic telescopic rod (3), a connecting plate (4), a cylinder (5), a torsion spring (6), a fixing block 1 (7), a fixing block 2 (8) and a fixing assembly; a plurality of hydraulic telescopic rods (3) are fixedly connected to the frame (1); the telescopic ends of all the hydraulic telescopic rods (3) are fixedly connected to the connecting plate (4); a plurality of cylinders (5) are rotatably connected to the connecting plate (4); a torsion spring (6) is fixedly connected between each cylinder (5) and the connecting plate (4), and the torsion spring (6) is fixedly connected to the connecting plate (4); a fixing block 1 (7) is fixedly connected to each fixing block 1 (7); a fixing block 2 (8) is rotatably connected to the fixing block 2 (8); a fixing assembly is connected to the fixing block 2 (8), and the fixing assembly is used to lock the fixing block 2 (8); The device also includes an auxiliary component; the auxiliary component is connected to the connecting plate (4); the auxiliary component includes a scale plate (202); a plurality of scale plates (202) are fixedly connected to the connecting plate (4), and the scale plates (202) are located outside the corresponding cylinders (5); each cylinder (5) is fixedly connected to a pointer (203), and the pointer (203) points to the scale line on the corresponding scale plate (202).

2. A welding device for constructing a formwork support steel frame according to claim 1, characterized in that: The fixing assembly includes a buckle 1 (206); each fixing block 2 (8) is fixedly connected to a plurality of buckles 1 (206); each fixing block 1 (7) is fixedly connected to a plurality of buckles 2 (207), and the buckles 2 (207) are engaged with the corresponding buckles 1 (206).

3. The welding equipment for constructing a formwork support steel frame according to claim 1, characterized in that: The inner sides of the fixing block 1 (7) and the fixing block 2 (8) are both provided with a friction layer.

4. The welding equipment for constructing a formwork support steel frame according to claim 1, characterized in that: It also includes a positioning seat (201); the positioning seat (201) is fixedly connected to the frame (1).

5. A welding device for constructing a formwork support steel frame according to claim 4, characterized in that: The upper side surface of the positioning seat (201) is configured as a smooth surface.

6. A welding device for constructing a formwork support steel frame according to claim 1, characterized in that: The device also includes an adjustment component; the adjustment component is connected to the connecting plate (4); the adjustment component includes a socket (204); each fixing block (7) is fixedly connected to a plurality of sockets (204); each socket (204) is plugged with a round rod (205); the connecting plate (4) is provided with a plurality of fixing holes (92), and the round rod (205) passes through the corresponding fixing holes (92) and is inserted into the socket (204).

7. A welding device for constructing a formwork support steel frame according to claim 6, characterized in that: A flange is provided at one end of the round rod (205) away from the socket (204).

8. A welding device for constructing a formwork support steel frame according to claim 7, characterized in that: One end of the round rod (205) close to the socket (204) is provided with a chamfer.

9. A welding device for constructing a formwork support steel frame according to any one of claims 1 to 8, characterized in that: The surface of the frame (1) is coated with an anti-corrosion layer.

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