A steel pipe placing table of a girth welding machine

Abstract

The utility model discloses a steel pipe placing table of ring slit welding machine, including elevating system, two bases are fixedly connected with elevating system upper portion, two mountings are fixedly connected with every base respectively, and the mount cavity is provided with the opening in the upper portion and the opposite side of two mountings respectively, and the inside embedding of mount cavity has the runner, and the both ends of runner are rotatably connected with the both sides of cavity respectively, and motor no.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing and processing pressure pipelines, and in particular to a steel pipe placement platform for a circumferential welding machine. Background Technology

[0002] Pressure pipelines are made up of multiple steel pipes connected together. When welding multiple sections of pressure pipeline together, a circumferential welder is required. During operation, a clamp is used to hold the steel pipes that have been connected in the coarse joint. The clamp then drives the steel pipes to rotate, and the welding machine welds the joint between the two steel pipes, making the two steel pipes completely fixed together. However, because the diameter of the steel pipes is relatively large, a relatively large clamp is required. In addition, manual operation is required when clamping the steel pipes, which is laborious and time-consuming, increases the workload, and reduces work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a steel pipe placement platform for a circumferential welder, which has the following advantages.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A steel pipe placement platform for a circumferential welding machine includes a lifting mechanism. Two bases are fixedly connected to the upper part of the lifting mechanism. Two mounting seats are fixedly connected to each base. Each mounting seat has a cavity. Openings are opened in the upper part of the cavity and on the opposite sides of the two mounting seats. A rotating wheel is embedded inside the cavity of the mounting seat. The two ends of the rotating wheel are rotatably connected to the two sides of the cavity. A motor is fixedly connected to the side of the mounting seat. The rotating wheel is fixedly connected to the output shaft of the motor.

[0006] Using the above technical solution, the steel pipes that have undergone coarse connection are placed on the rotating wheels of the mounting base on the upper part of the base. The two rotating wheels on each base are located on both sides of the steel pipe. Force is generated between the outer wall of the steel pipe and the rotating wheels. When the motor drives the rotating wheels to rotate, the rotating wheels on both bases rotate in the same direction. The rotating wheels drive the steel pipes above them to rotate. The welding machine welds the joints between the steel pipes, so that the steel pipes are better fixed and connected together. By applying power to the rotating wheels on the base, the rotating wheels drive the steel pipes placed on them to rotate. It is no longer necessary to use a clamp to hold the steel pipe. The rotation of the steel pipe is driven by the clamp, which reduces the workload and increases the work efficiency.

[0007] Preferably, the base has a groove, and a bidirectional lead screw is rotatably connected in the groove. The two mounting seats on the base are respectively fixedly connected to the two sliders of the bidirectional lead screw.

[0008] Using the above technical solution, depending on the steel pipe of different diameters, rotating the first double-acting screw causes the two sliders of the first double-acting screw to move the two mounting seats closer or further apart, adjusting the distance between the two mounting seats, thereby allowing steel pipes of different diameters to be placed on the upper part between the rotating wheels of the two mounting seats.

[0009] Preferably, the lifting mechanism is a scissor lift, and the two bases are fixedly connected to the upper part of the scissor lift.

[0010] Using the above technical solution, the steel pipe is placed on the base of the upper part of the scissor lift. The scissor lift drives the steel pipe to rise, bringing it close to the welding machine. After welding, the scissor lift drives the steel pipe to fall, and then the steel pipe is removed for easy handling. When the diameter of the steel pipe is large, the scissor lift lowers the height of the steel pipe. When the diameter of the steel pipe is small, the scissor lift drives the steel pipe to rise, so that it can contact the welding machine.

[0011] Preferably, the bottom of the scissor lift has two rollers rotatably connected to the left and right sides respectively, and also includes a guide rail. The rollers on the left and right sides of the bottom of the scissor lift are respectively embedded in the side rails of the guide rail, and the rollers are rotatably connected to the guide rail.

[0012] Using the above technical solution, the scissor lift can be moved along the guide rail, causing the scissor lift to move the steel pipe above it, so that the joints at different parts of the steel pipe are brought closer to the welding machine.

[0013] Preferably, connecting plates are fixedly connected to both ends of the upper part of the base, and a guide plate is fixedly connected to the upper part between the two connecting plates. The guide plate is located above the cavity opening of the base, passes through two mounting seats on the base, and is slidably connected to the mounting seats.

[0014] By adopting the above technical solution, when the bidirectional lead screw rotates, its slider drives the mounting base to move along the guide plate, thereby increasing the stability of the mounting plate movement.

[0015] Preferably, a second motor is fixedly connected to the bottom of the scissor lift, and a connecting shaft is fixedly connected between two rollers located on opposite sides of the scissor lift. The output shaft of the second motor is connected to the connecting shaft via a sprocket and chain.

[0016] Using the above technical solution, the second motor drives a pair of rollers at the bottom of the scissor lift, thereby moving the scissor lift without the need for manual pushing, which saves more effort.

[0017] Preferably, a limiting mechanism is also included, which includes a bidirectional lead screw, a connecting rod, and a baffle. The bidirectional lead screw is rotatably connected to the upper part of the lifting mechanism. There are two baffles, located at the two ends of the bidirectional lead screw, and the baffles are hinged to the upper part of the lifting mechanism. Each baffle is hinged to a connecting rod with its adjacent bidirectional lead screw slider.

[0018] Using the above technical solution, the steel pipe is placed on two bases. The two-way lead screw rotates and the two sliders on its upper part move closer to each other. The two moving sliders drive the two baffles to rotate through the connecting rods, approaching the steel pipe and contacting it, so as to prevent the steel pipe from detaching from the base when the rotating wheel on the base drives the steel pipe to rotate. Attached Figure Description

[0019] Figure 1 This is a front view diagram of an embodiment;

[0020] Figure 2 This is a side view of an embodiment;

[0021] Figure 3 This is a top view of an embodiment;

[0022] Figure 4 This is an overall schematic diagram of the embodiment;

[0023] Figure 5 This is a schematic diagram of the entire placement platform.

[0024] Reference numerals in the attached diagram: 1. Base; 2. Mounting seat; 3. Rotary wheel; 4. Motor 1; 5. Double-acting lead screw 1; 6. Scissor lift; 7. Roller; 8. Guide rail; 9. Guide plate; 10. Motor 2; 11. Double-acting lead screw 2; 12. Connecting rod; 13. Baffle. Detailed Implementation

[0025] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0026] See Figures 1 to 5A steel pipe placement platform for a circumferential welding machine includes a scissor lift 6. The scissor lift 6 comprises a base plate, a scissor frame, a support plate, and a cylinder. The scissor frame is connected above the base plate, and the support plate is connected above the scissor frame. The cylinder is hinged to the base plate, and its output shaft is hinged to the scissor frame. Two rollers 7 are rotatably connected to the left and right sides below the base plate of the scissor lift 6, and a connecting shaft is fixedly connected between the two rollers 7 on opposite sides. A second motor 10 is fixedly connected above the base plate of the scissor lift 6, and the output shaft of the second motor 10 is driven by the connecting shaft via a sprocket and chain. A guide rail 8 is also provided, installed on the floor of the workshop. The rollers 7 on the left and right sides below the base plate are respectively embedded in the side rails of the guide rail 8, and the rollers 7 are in a rolling connection with the guide rail 8. Two bases 1 are bolted to the support plate of the scissor lift 6. Each base 1 has a groove, and a bidirectional lead screw 5 is rotatably connected to the groove. Two mounting seats 2 are fixedly connected to the two sliders of the bidirectional lead screw 5 on each base 1. Connecting plates are bolted to both ends of the upper part of the base 1. A guide plate 9 is bolted to the upper part between the two connecting plates. The guide plate 9 is located above the opening of the cavity in the base 1 and passes through the two mounting seats 2 on the base 1, slidably connected to them. Each mounting seat 2 has a cavity, with openings at the upper part of the cavity and on opposite sides of the two mounting seats 2. A rotating wheel 3 is embedded inside the cavity, with both ends of the rotating wheel 3 rotatably connected to the sides of the cavity. A motor 4 is fixedly connected to the outside of the cavity of the mounting base 2. The rotating wheel 3 is fixedly connected to the output shaft of the motor 4. A horizontal double-acting screw 11 is rotatably connected to the support plate of the scissor lift 6. Baffles 13 are respectively hinged at both ends of the screw on the support plate of the scissor lift 6. A connecting rod 12 is hinged between each baffle 13 and its adjacent double-acting screw slider.

[0027] Working Principle: Based on the diameter of the steel pipe to be welded, rotate the double-acting screw 5. The two sliders of the double-acting screw 5 move the two mounting seats 2 closer together or further apart, adjusting the distance between the two mounting seats 2. Then, place the steel pipe, after rough connection, on the rotating wheel 3 on the upper part of the base 1. The two rotating wheels 3 on each base 1 are located on opposite sides of the steel pipe. A force is generated between the outer wall of the steel pipe and the rotating wheels 3. Rotate the double-acting screw 11, bringing its two upper sliders closer together. The two moving sliders, through the connecting rod 12, drive the two baffles 13 to rotate, approaching and contacting the steel pipe, preventing the steel pipe from detaching from the base 1 when the rotating wheels 3 on the base 1 rotate. The scissor lift 6 lifts the steel pipe, bringing it closer to the welding machine. Then, the motor 4 drives the rotating wheel 3 to rotate. The rotating wheels 3 on both bases 1 rotate in the same direction, causing the steel pipe above them to rotate. The welding machine then welds the joint between the steel pipes. After one section is welded, motor 210 drives the scissor lift 6 to move, which in turn moves the steel pipe above it, aligning the joints at different parts of the steel pipe with the welding machine. The welding machine then welds the joints at other parts of the steel pipe, ensuring a better connection. By applying power to the rotating wheel 3 on the base 1, the wheel rotates the steel pipe placed on it, eliminating the need for clamps to hold the pipe in place. The clamps drive the rotation of the steel pipe, reducing workload and increasing efficiency.

Claims

1. A steel pipe placement platform for a circumferential welder, characterized in that, The device includes a lifting mechanism, on the upper part of which two bases (1) are fixedly connected. Each base (1) is fixedly connected to two mounting seats (2). Each mounting seat (2) has a cavity. The upper part of the cavity of the mounting seat (2) and the opposite sides of the two mounting seats (2) are respectively provided with openings. A rotating wheel (3) is embedded inside the cavity of the mounting seat (2). The two ends of the rotating wheel (3) are rotatably connected to the two sides of the cavity. A motor (4) is fixedly connected to the outside of the cavity of the mounting seat (2). The rotating wheel (3) is fixedly connected to the output shaft of the motor (4).

2. The steel pipe placement platform of the circumferential welder according to claim 1, characterized in that, The base (1) has a groove, and a bidirectional lead screw (5) is rotatably connected in the groove of the base (1). The two mounting seats (2) on the base (1) are respectively fixedly connected to the two sliders of the bidirectional lead screw (5).

3. The steel pipe placement platform of the circumferential welder according to claim 1, characterized in that, The lifting mechanism is a scissor lift (6), and the two bases (1) are fixedly connected to the upper part of the scissor lift (6).

4. The steel pipe placement platform of a circumferential welder according to claim 3, characterized in that, The scissor lift (6) has two rollers (7) rotatably connected to the left and right sides of its bottom, and also includes a guide rail (8). The rollers (7) on the left and right sides of the bottom of the scissor lift (6) are respectively embedded on the side rails of the guide rail (8), and the rollers (7) are rotatably connected to the guide rail (8).

5. The steel pipe placement platform of a circumferential welder according to claim 1, characterized in that, Connecting plates are fixedly connected to both ends of the base (1), and a guide plate (9) is fixedly connected to the upper part between the two connecting plates. The guide plate (9) is located above the cavity opening of the base (1). The guide plate (9) passes through the two mounting seats (2) on the base (1), and the guide plate (9) is slidably connected to the mounting seats (2).

6. The steel pipe placement platform of a circumferential welder according to claim 4, characterized in that, A motor (10) is fixedly connected above the bottom of the scissor lift (6). A connecting shaft is fixedly connected between two rollers (7) located on different sides of the scissor lift (6). The output shaft of the motor (10) is connected to the connecting shaft via a sprocket and chain.

7. The steel pipe placement platform of a circumferential welder according to claim 1, characterized in that, It also includes a limiting mechanism, which includes a two-way lead screw (11), a connecting rod (12), and a baffle (13). The two-way lead screw (11) is rotatably connected to the upper part of the lifting mechanism. There are two baffles (13), which are located at the two ends of the two-way lead screw (11) respectively, and the baffles (13) are hinged to the upper part of the lifting mechanism. Each baffle (13) is hinged to its adjacent two-way lead screw slider with a connecting rod (12).

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