Clamp for welding steel pipe for steel structure building

Abstract

The utility model relates to the technical field of steel pipe welding, in particular to a steel pipe welding clamp for a steel structure building, which supports steel pipes through a butt joint device and drives welding ends of two groups of steel pipes to be abutted closely, reduces labor intensity of operators, and clamps and fixes welding areas of the steel pipes through a clamping device. Meanwhile, clamping and loosening can be rapidly completed, the machining efficiency of the device is improved, the supporting device is matched with the clamping device to drive the steel pipe to rotate, therefore, an operator can weld the annular joint of the steel pipe conveniently, and the practicability of the device is improved; comprising a butt joint device, a supporting device and a clamping device, the supporting device is installed on the butt joint device, and the clamping device is installed on the supporting device.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe welding, and in particular to a clamp for welding steel pipes for steel structure buildings. Background Technology

[0002] The main advantages of steel structure buildings include significantly saving construction time, construction not being affected by the season, increasing the usable area of ​​residential space, reducing construction waste and environmental pollution, and reusable building materials. During the construction of steel structure buildings, it is often necessary to weld the steel pipes used as vertical or horizontal supports. The steel pipes need to be fixed with clamps before welding.

[0003] The existing Chinese utility model patent with application number CN201921143765.5 relates to a clamp for welding steel pipes in steel structure buildings, including a clamping mechanism, a rotating outer tube, a clamping inner tube, an annular base plate, a metal block, a welding operation port, and an inner limiting ring, which can be more convenient and easier to operate, and can improve the efficiency of steel pipe welding.

[0004] However, in actual use, the above-mentioned device requires manual rotation of the bolts to tighten the steel pipe. Also, after welding is completed, the protruding part at the weld is prone to getting stuck, affecting the extraction of the steel pipe. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a steel pipe welding fixture for steel structure buildings. It uses a docking device to support the steel pipe and drive the welding ends of two sets of steel pipes to come close together, reducing the labor intensity of operators. A clamping device clamps and fixes the welding area of ​​the steel pipe, and can quickly complete clamping and releasing, improving the processing efficiency of the device. Furthermore, a supporting device, in conjunction with the clamping device, drives the steel pipe to rotate, facilitating welding of the annular joint of the steel pipe by operators, thus improving the practicality of the device.

[0006] This utility model discloses a steel pipe welding fixture for steel structure buildings; it includes a docking device, a supporting device, and a clamping device. The supporting device is installed on the docking device, and the clamping device is installed on the supporting device. The docking device provides support for the steel pipe and drives the welding ends of the two sets of steel pipes to come close together, reducing the labor intensity of the operator. The clamping device clamps and fixes the welding area of ​​the steel pipe, and can quickly complete clamping and releasing, improving the processing efficiency of the device. The supporting device, in conjunction with the clamping device, drives the steel pipe to rotate, thereby facilitating the operator to weld the annular joint of the steel pipe, improving the practicality of the device.

[0007] Preferably, the docking device includes a base plate, support frames, conveyor wheels, and a reduction motor. Multiple sets of support frames are respectively arranged on the left and right sides of the upper end face of the base plate. Conveyor wheels are installed on the support frames. A reduction motor is installed on each of the two sets of support frames located close to the center of the base plate. The output end of the reduction motor is connected to the conveyor wheel on its respective support frame. Multiple sets of conveyor wheels provide support for the steel pipes, and the base plate increases the contact area between the equipment and the ground, increasing the stability of the device. Activating the two sets of reduction motors drives the two sets of conveyor wheels to rotate, thereby moving the steel pipes on the left and right sides towards each other, assisting in aligning the docking ends of the steel pipes. This reduces the labor intensity of operators and improves the practicality of the device.

[0008] Preferably, the support device includes an arc-shaped support frame, a main control frame, a support shaft, and arc-shaped sliders. A set of arc-shaped support frames is installed on the left and right sides of the upper surface of the base plate, respectively. Arc-shaped grooves are provided on the inner sides of the arc-shaped support frames. A support shaft is installed on the front face of the main control frame, and a set of arc-shaped sliders is provided on the left and right ends of the support shaft. The two sets of arc-shaped sliders are located in the grooves of the two sets of arc-shaped support frames. The movement of the main control frame is limited by the two sets of arc-shaped support frames and the arc-shaped sliders, allowing the main control frame to rotate at a certain angle around the steel pipe docking area. This facilitates the rotation of the steel pipe with the clamping device, switching the unwelded area to the operator's front, facilitating welding operations, and improving the practicality of the device.

[0009] Preferably, the clamping device includes a lower clamping arm, an upper clamping arm, a first rotating shaft seat, an electric cylinder, and a second rotating shaft seat. A set of upper and lower clamping arms are respectively mounted on the left and right sides of the support shaft. A set of first rotating shaft seats is respectively provided on the left and right sides of the upper and lower ends of the main control frame. An electric cylinder is connected to the side of the first rotating shaft seat. A set of second rotating shaft seats is installed on the upper end face of the upper clamping arm and the lower end face of the lower clamping arm. The moving end of the electric cylinder is connected to the second rotating shaft seat at its corresponding position. By selecting electric cylinders with different strokes, the maximum rotation position of the lower and upper clamping arms is limited. By controlling the extension of multiple sets of electric cylinders to drive the lower and upper clamping arms to clamp and fix the steel pipe, the impact of the steel pipe's own shaking during welding on the welding effect is reduced, and the removal of the steel pipe after welding is not affected, thus improving the stability and practicality of the device.

[0010] Preferably, it also includes a pressure sensor, which is installed on the moving end of the electric cylinder; the pressure sensor monitors the pressure on the moving end of the electric cylinder, and when the pressure is greater than a preset value, the electric cylinder is controlled to stop extending, so as to prevent damage to the equipment or steel pipe and improve the protection and practicality of the device.

[0011] Preferably, it also includes a handle, anti-slip strips, and a push-button switch. A handle is installed on the rear end face of the main control frame, and an arc-shaped groove is provided at the lower part of the handle. An anti-slip strip is provided in the rear part of the arc-shaped groove, and a push-button switch is installed on the rear end face of the handle. The operator can easily drive the main control frame to move in the arc support frame through the handle. The anti-slip strip increases the anti-slip property of the handle and facilitates pressing the push-button switch during the movement of the handle. The push-button switch controls the working state of the clamping device. After rotating the steel pipe to the required angle, the clamping device is released, and then the main control frame is returned to the horizontal angle, thereby reducing the impact on the welding process and improving the practicality of the device.

[0012] Preferably, it also includes a guide trough, which is provided in the middle of the upper end face of the bottom plate, and the front part of the guide trough is inclined downward; the guide trough collects the welding slag generated during the welding process and guides the welding slag to the front part of the bottom plate for discharge, thereby reducing the accumulation of welding slag on the bottom plate and improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the docking device provides support for the steel pipe and drives the welding ends of the two sets of steel pipes to come close together, reducing the labor intensity of the operators; the clamping device clamps and fixes the welding area of ​​the steel pipe, and can quickly complete the clamping and releasing, improving the processing efficiency of the device; the support device, in conjunction with the clamping device, drives the steel pipe to rotate, thereby facilitating the operators to weld the annular joint of the steel pipe, improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0015] Figure 2 This is a first cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the second cross-sectional structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the second isometric structure of this utility model;

[0018] Figure 5 This is a partially enlarged structural schematic diagram of the present invention;

[0019] The following are labels in the attached diagram: 1. Base plate; 2. Support frame; 3. Conveyor wheel; 4. Gear motor; 5. Arc support frame; 6. Main control frame; 7. Support shaft; 8. Arc slider; 9. Lower clamping arm; 10. Upper clamping arm; 11. First rotating shaft seat; 12. Electric cylinder; 13. Second rotating shaft seat; 14. Pressure sensor; 15. Handle; 16. Anti-slip strip; 17. Press switch; 18. Guide chute. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the support device is mounted on the docking device, and the clamping device is mounted on the support device;

[0023] First, place the two sets of steel pipes on the multiple sets of conveyor wheels 3 on the left and right sides. Then, turn on the two sets of reduction motors 4 to drive the two sets of conveyor wheels 3 to rotate, thereby causing the steel pipes on the left and right sides to move towards each other, assisting in aligning the steel pipe ends. Then, control the multiple sets of electric cylinders 12 to extend and drive the lower clamping arm 9 and the upper clamping arm 10 to clamp and fix the steel pipe. After that, weld the steel pipe. After welding one side is completed, the operator holds the handle 15 and lifts it up, driving the main control frame 6 to rotate. After rotating the steel pipe to the required angle, control the clamping device to release. Then, return the main control frame 6 to the horizontal angle. Depending on the needs, choose whether to control the clamping device for secondary fixation. Then continue to complete the welding.

[0024] The docking device includes a base plate 1, a support frame 2, a conveyor wheel 3 and a reduction motor 4. Multiple sets of support frames 2 are respectively arranged on the left and right sides of the upper end face of the base plate 1. The conveyor wheel 3 is installed on the support frame 2. A set of reduction motor 4 is installed on the two sets of support frames 2 on the left and right sides close to the center of the base plate 1. The output end of the reduction motor 4 is connected to the conveyor wheel 3 on the support frame 2 where it is located.

[0025] The support device includes an arc support frame 5, a main control frame 6, a support shaft 7, and an arc slider 8. A set of arc support frames 5 are installed on the left and right sides of the upper end face of the base plate 1, and an arc groove is provided on the inner side of the arc support frame 5. A support shaft 7 is installed on the front end face of the main control frame 6, and an arc slider 8 is provided on the left and right end faces of the support shaft 7. The two sets of arc sliders 8 are located in the grooves of the two sets of arc support frames 5 respectively.

[0026] The clamping device includes a lower clamping arm 9, an upper clamping arm 10, a first rotating shaft seat 11, an electric cylinder 12, and a second rotating shaft seat 13. The left and right parts of the support shaft 7 are respectively fitted with a set of upper clamping arms 10 and lower clamping arms 9. The upper and lower end faces of the main control frame 6 are respectively provided with a set of first rotating shaft seats 11. An electric cylinder 12 is connected to the side of the first rotating shaft seat 11. A set of second rotating shaft seats 13 is installed on the upper end face of the upper clamping arm 10 and the lower end face of the lower clamping arm 9. The moving end of the electric cylinder 12 is connected to the second rotating shaft seat 13 at its corresponding position.

[0027] It also includes a pressure sensor 14, which is provided on the moving end of the electric cylinder 12;

[0028] It also includes a handle 15, an anti-slip strip 16 and a push switch 17. The handle 15 is installed on the rear end face of the main control frame 6. An arc-shaped groove is provided at the lower part of the handle 15. An anti-slip strip 16 is provided in the rear part of the arc-shaped groove. The push switch 17 is installed on the rear end face of the handle 15.

[0029] The docking device provides support for the steel pipes and drives the welding ends of the two sets of steel pipes to come close together, reducing the labor intensity of the operators. The clamping device clamps and fixes the welding area of ​​the steel pipes, and can quickly complete clamping and releasing, improving the processing efficiency of the device. The support device, in conjunction with the clamping device, drives the steel pipes to rotate, which makes it easier for the operators to weld the annular joint of the steel pipes, thus improving the practicality of the device.

[0030] like Figures 1 to 5 As shown, this utility model discloses a steel pipe welding clamp for steel structure buildings. During operation, two sets of steel pipes are first placed on multiple sets of conveyor wheels 3 on the left and right sides. Then, two sets of reduction motors 4 are activated to drive the two sets of conveyor wheels 3 to rotate, thereby causing the steel pipes on the left and right sides to move towards each other, assisting in aligning the pipe ends. Next, multiple sets of electric cylinders 12 are controlled to extend, driving the lower clamping arm 9 and the upper clamping arm 10 to clamp and fix the steel pipes. After welding, the steel pipes are welded. After welding on one side is completed, the operator holds the handle 15 and lifts it upwards, causing the main control frame 6 to rotate. After rotating the steel pipe to the required angle, the clamping device is released, and then the main control frame 6 is returned to a horizontal position. Depending on the requirements, the clamping device can be controlled for secondary fixing before welding can continue.

[0031] The geared motor 4, electric cylinder 12, pressure sensor 14, and push switch 17 of the steel pipe welding clamp for steel structure buildings of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A clamp for welding steel pipes in steel structure buildings; characterized in that, The system includes a docking device, a support device, and a clamping device. The support device is mounted on the docking device, and the clamping device is mounted on the support device. The clamping device includes a lower clamping arm (9), an upper clamping arm (10), a first rotating shaft seat (11), an electric cylinder (12), and a second rotating shaft seat (13). The left and right sides of the support shaft (7) are respectively fitted with a set of upper clamping arms (10) and lower clamping arms (9). The upper and lower ends of the main control frame (6) are respectively provided with a set of first rotating shaft seats (11) on the left and right sides. An electric cylinder (12) is connected to the side of the first rotating shaft seat (11). The electric cylinder (12) has a set of second rotating shaft seats (13) installed on the upper end face of the upper clamping arm (10) and the lower end face of the lower clamping arm (9). The moving end of the electric cylinder (12) is connected to the second rotating shaft seat (13) at its corresponding position. It also includes a handle (15), an anti-slip strip (16) and a push switch (17). The handle (15) is installed on the rear end face of the main control frame (6). The lower part of the handle (15) is provided with an arc-shaped groove. The rear part of the arc-shaped groove is provided with an anti-slip strip (16). The push switch (17) is installed on the rear end face of the handle (15).

2. The clamp for welding steel pipes in steel structure buildings as described in claim 1, characterized in that, The docking device includes a base plate (1), a support frame (2), a conveyor wheel (3) and a geared motor (4). Multiple sets of support frames (2) are respectively set on the left and right sides of the upper end face of the base plate (1). The conveyor wheel (3) is installed on the support frame (2). A set of geared motor (4) is installed on the two sets of support frames (2) close to the center of the base plate (1). The output end of the geared motor (4) is connected to the conveyor wheel (3) on the support frame (2) where it is located.

3. The clamp for welding steel pipes in steel structure buildings as described in claim 2, characterized in that, The support device includes an arc support frame (5), a main control frame (6), a support shaft (7), and an arc slider (8). A set of arc support frames (5) are installed on the left and right sides of the upper end face of the base plate (1). An arc groove is provided on the inner side of the arc support frame (5). A support shaft (7) is installed on the front end face of the main control frame (6). A set of arc sliders (8) are provided on the left and right end faces of the support shaft (7). The two sets of arc sliders (8) are located in the grooves of the two sets of arc support frames (5).

4. A clamp for welding steel pipes in steel structure buildings as described in claim 3, characterized in that, It also includes a pressure sensor (14), which is provided on the moving end of the electric cylinder (12).

5. A clamp for welding steel pipes in steel structure buildings as described in claim 4, characterized in that, It also includes a guide trough (18), and a guide trough (18) is provided in the middle of the upper end face of the base plate (1), with the front of the guide trough (18) tilting downward.

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