Steel-plastic composite pipe section welding device

Abstract

The utility model discloses a steel-plastic composite pipe section welding device which comprises a base, and a pressing mechanism is arranged at the upper end of the base. According to the steel-plastic composite pipe section welding device, during electromagnetic fusion welding, due to the fact that force and angle during pressing are difficult to control, a welded joint deforms and deviates, before pressing, composite pipes to be welded are sequentially fixed in a first clamp and a second clamp, after fastening is completed, a rodless air cylinder is started, electromagnetic fusion welding is started at the moment, and then the composite pipes to be welded are welded. Under the cooperation of the positioning mechanism, the composite pipe is welded, the mechanism adopts a rotary welding mode, compared with the traditional direct fitting welding mode, after one end of the composite pipe is fitted, the composite pipe starts to rotate, in the process of rotating fitting with the rotating shaft, the heated composite pipe can be welded more stably, deviation caused by the force angle is avoided, and the welding quality is improved. And the pressing force is controlled by adjusting the air pressure of the rodless cylinder, so that the device is suitable for welding composite pipes with different thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-plastic composite pipes, in particular to a steel-plastic composite pipe section welding device. Background Art

[0002] Electromagnetic fusion welding is a commonly used PSP steel-plastic composite pressure pipe connection method. It mainly heats the pipe end face and the welding head part to melt and fuse them together to form a whole. Cut the PSP steel-plastic composite pressure pipe into the required length to ensure that the pipe end face is flat and smooth. Heat the electric heat fusion welding tool to the required temperature, and then contact it with the pipe end face to heat it and fuse it into one. During the heating and fusion process, use a chuck or other auxiliary tools to press the two ends to ensure that the weld is firm. After the welding is completed, wait for the pipe to cool to ensure that the weld is firm. Pipes of different diameters and materials require different heating temperatures and must be processed strictly in accordance with technical requirements. During electromagnetic fusion welding, both ends of the pipe must be flat, otherwise it will affect the quality of the weld. During electromagnetic fusion welding, the welding time cannot be too long, otherwise it will damage the pipe surface and affect its performance. When connecting pipes, you must choose a suitable connection method and select corresponding tools and materials according to actual conditions.

[0003] During the electromagnetic welding process, the force and angle of the welding press are difficult to control, which causes deformation and displacement of the joint after welding. Utility Model Content

[0004] The utility model aims to provide a steel-plastic composite pipe section welding device to solve the problem of deformation and offset of the connection during pressing proposed in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution, including: a base, wherein a pressing mechanism is provided at the upper end of the base.

[0006] Preferably, the pressing mechanism includes: a rodless cylinder is slidably arranged inside the base, a support column is fixedly installed on the upper end surface of the rodless cylinder, a support plate 1 is fixedly connected to the upper end surface of the support column, a motor is arranged on one side surface of the support plate 1, a clamp 1 is fixedly connected to one end surface of the output shaft of the motor, a support frame is fixedly connected to one end of the base, a support frame is fixedly connected to the upper end surface of the support frame, and a clamp 2 is rotatably connected to one side surface of the support plate 2.

[0007] By adopting the above technical solution, the pressing mechanism solves the problem of deformation and offset of the connection during pressing.

[0008] Preferably, a positioning mechanism is provided on the upper end surface of the base, wherein the positioning mechanism comprises: a single-acting cylinder 1 is slidably connected inside the base, the upper end surface of the piston rod of the single-acting cylinder 1 is fixedly connected to a base plate, the upper end surface of the base plate is fixedly connected to a rotating frame, the surface of the rotating frame is provided with a rotating shaft, a connecting arm is fixedly connected to one side surface of the base plate, a single-acting cylinder 2 is fixedly installed on the upper end surface of the connecting arm, and a friction pad is provided on the surface of the piston rod of the single-acting cylinder 2.

[0009] By adopting the above technical solution, the positioning mechanism solves the stability problem during welding.

[0010] Preferably, a hole is provided at the center of one side surface of the support plate 1, and the output shaft of the motor is provided through the hole of the support plate 1, the centers of the clamp 1 and the clamp 2 are on the same horizontal line, and the support column and the support frame are at the same height.

[0011] The above technical solution is adopted to provide a structural basis for the pressing mechanism.

[0012] Preferably, an opening is provided on one side surface of the rotating frame, a positioning nut is provided on one side surface of the rotating shaft, and the positioning nut of the rotating shaft is slidably connected to the opening on one side of the rotating frame, sliding grooves are provided on both sides of the base surface, and a single-acting cylinder 1 is provided in the sliding groove of the base, and the piston rod of the single-acting cylinder 2 is connected to the friction pad by Velcro.

[0013] The above technical solution is adopted to provide a structural basis for the positioning mechanism.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the steel-plastic composite pipe section welding device:

[0015] 1. The pressing mechanism solves the problem of deformation and offset of the connection during pressing. During electromagnetic fusion welding, the force and angle during pressing are difficult to control, resulting in deformation and offset of the connection after welding. Before pressing, the composite pipe to be welded is fixed in clamp 1 and clamp 2 in turn. After the tightening is completed, the rodless cylinder is started, and the surfaces of one end of the composite pipe in clamp 1 and clamp 2 to be welded are fitted. At this time, electromagnetic fusion welding is started, and the composite pipe is welded with the cooperation of the positioning mechanism. The mechanism adopts a rotating welding method. Compared with the previous direct fitting welding, after one end of the composite pipe is fitted, the composite pipe starts to rotate under the action of the motor. In the process of rotating and fitting with the rotating shaft, the heated composite pipe can be welded more stably and will not be offset due to the force and angle. The pressing force can be controlled by adjusting the air pressure of the rodless cylinder, so that it is suitable for welding composite pipes of different thicknesses.

[0016] 2. The positioning mechanism solves the stability problem during welding. After the composite pipe is fixed in the clamp 1 and the clamp 2, the position of the bottom plate is adjusted to the lower end of the welding point, and the single-acting cylinder 1 is started to make the rotating shaft fit the surface of the composite pipe. When welding composite pipes with longer lengths, the rotation of the composite pipe can be made more stable, and the surface of the rotating shaft is always in contact with the composite pipe. It can also play a role in flattening the welding point, making the welding point more beautiful. By adjusting the position of the rotating shaft on the rotating frame and then tightening the positioning nut, it can adapt to composite pipes of different sizes. After welding is completed, start the single-acting cylinder 2, and the single-acting cylinder 2 will fit the friction pad on the welding point. During the rotation of the composite pipe, the friction pad will polish the welding point, thereby improving the efficiency and beauty of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a three-dimensional structure of a support plate 1 and a clamp 1 connected to each other in the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the single-acting cylinder 1 connected to the base plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection between the rodless cylinder and the support column of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the rotating frame and the rotating shaft of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the connection between the single-acting cylinder 2 and the friction pad of the utility model.

[0022] In the figure: 1. base; 2. rodless cylinder; 3. support column; 4. support plate 1; 5. motor; 6. clamp 1; 7. single-acting cylinder 1; 8. bottom plate; 9. rotating frame; 10. rotating shaft; 11. connecting arm; 12. single-acting cylinder 2; 13. friction pad; 14. support frame; 15. support plate 2; 16. clamp 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5The utility model provides a technical solution: a steel-plastic composite pipe section welding device, comprising: a base 1, a pressing mechanism is provided at the upper end of the base 1, wherein the pressing mechanism comprises: a rodless cylinder 2 is slidably arranged inside the base 1, a support column 3 is fixedly installed on the upper end surface of the rodless cylinder 2, a support plate 4 is fixedly connected to the upper end surface of the support column 3, a motor 5 is provided on one side surface of the support plate 4, a clamp 6 is fixedly connected to one end surface of the output shaft of the motor 5, a support frame 14 is fixedly connected to one end of the base 1, a support plate 2 15 is fixedly connected to the upper end surface of the support frame 14, a clamp 2 16 is rotatably connected to one side surface of the support plate 2 15, a hole is provided at the center of one side surface of the support plate 4, and the output shaft of the motor 5 is penetrated through the hole of the support plate 4, and the centers of the clamp 6 and the clamp 2 16 are on the same horizontal line On the top, the support column 3 and the support frame 14 are at the same height. During electromagnetic fusion welding, the force angle during pressing is difficult to control, which causes deformation and deviation at the joint after welding. Before pressing, the composite pipe to be welded is fixed in the clamp 1 6 above the support column 3 and the clamp 2 16 at the upper end of the support frame 14 in sequence. After the tightening is completed, the rodless cylinder 2 is started, and the surfaces of one end of the composite pipe in the clamp 1 6 and the clamp 2 16 to be welded are fitted. Under the action of the motor 5 on one side of the support plate 4, the composite pipe starts to rotate between the support plate 1 4 and the support plate 2 15. At this time, electromagnetic heating is turned on. In the process of rotating and fitting with the rotating shaft 10, the heated composite pipe can be welded more stably and will not be offset due to the force angle. The pressing force can be controlled by adjusting the air pressure of the rodless cylinder 2, so as to be suitable for welding composite pipes of different thicknesses.

[0025] A positioning mechanism is provided on the upper end surface of the base 1, wherein the positioning mechanism comprises: a single-acting cylinder 1 7 is slidably connected inside the base 1, the upper end surface of the piston rod of the single-acting cylinder 1 7 is fixedly connected to a bottom plate 8, the upper end surface of the bottom plate 8 is fixedly connected to a rotating frame 9, the surface of the rotating frame 9 is provided with a rotating shaft 10, a side surface of the bottom plate 8 is fixedly connected to a connecting arm 11, a single-acting cylinder 2 12 is fixedly mounted on the upper end surface of the connecting arm 11, a friction pad 13 is provided on the surface of the piston rod of the single-acting cylinder 2 12, preferably, an opening is provided on one side surface of the rotating frame 9, a positioning nut is provided on one side surface of the rotating shaft 10, and the positioning nut of the rotating shaft 10 is slidably connected to an opening on one side of the rotating frame 9, sliding grooves are provided on both sides of the surface of the base 1, and a single-acting cylinder 1 7 is provided in the sliding groove of the base 1, and the piston rod of the single-acting cylinder 2 12 and the friction pad 13 After the composite pipe is fixed in the clamp 1 6 and the clamp 2 16 through the Velcro connection, the position of the bottom plate 8 is adjusted to the lower end of the welding point, and the single-acting cylinder 1 7 in the base 1 is started to make the rotating shaft 10 fit the surface of the composite pipe. When welding composite pipes with longer lengths, the rotation of the composite pipe can be made more stable. The surface of the rotating shaft 10 is always in contact with the composite pipe, and it can also play a role in flattening the welding point, making the welding point more beautiful. By adjusting the position of the rotating shaft 10 on the rotating frame 9 and then tightening the positioning nut, it can adapt to composite pipes of different sizes. After welding is completed, start the single-acting cylinder 2 12 on the connecting arm 11. The single-acting cylinder 2 12 fits the friction pad 13 on the welding point. During the rotation of the composite pipe, the friction pad 13 polishes the welding point to make it smooth, thereby improving the efficiency and beauty of welding.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel-plastic composite pipe section welding device, comprising: The base (1) is characterized in that: a pressing mechanism is provided at the upper end of the base (1); The pressing mechanism comprises: a rodless cylinder (2) is slidably arranged inside the base (1), a support column (3) is fixedly installed on the upper end surface of the rodless cylinder (2), a support plate (4) is fixedly connected to the upper end surface of the support column (3), a motor (5) is arranged on one side surface of the support plate (4), a clamper (6) is fixedly connected to one end surface of the output shaft of the motor (5), a support frame (14) is fixedly connected to one end of the base (1), a support plate (15) is fixedly connected to the upper end surface of the support frame (14), and a clamper (16) is rotatably connected to one side surface of the support plate (15); The upper end surface of the base (1) is provided with a positioning mechanism, wherein the positioning mechanism comprises: a single-acting cylinder (7) is slidably connected inside the base (1), the upper end surface of the piston rod of the single-acting cylinder (7) is fixedly connected with a base plate (8), the upper end surface of the base plate (8) is fixedly connected with a rotating frame (9), the surface of the rotating frame (9) is provided with a rotating shaft (10), a side surface of the base plate (8) is fixedly connected with a connecting arm (11), the upper end surface of the connecting arm (11) is fixedly mounted with a single-acting cylinder (12), and the surface of the piston rod of the single-acting cylinder (12) is provided with a friction pad (13).

2. A steel-plastic composite pipe section welding device according to claim 1, characterized in that: A hole is provided at the center of one side surface of the support plate 1 (4), and the output shaft of the motor (5) is provided through the hole of the support plate 1 (4), the centers of the clamp 1 (6) and the clamp 2 (16) are located on the same horizontal line, and the support column (3) and the support frame (14) are at the same height.

3. A steel-plastic composite pipe section welding device according to claim 1, characterized in that: One side surface of the rotating frame (9) is provided with an opening, one side surface of the rotating shaft (10) is provided with a positioning nut, and the positioning nut of the rotating shaft (10) is slidably connected to the one side opening of the rotating frame (9), and sliding grooves are provided on both sides of the surface of the base (1), and a single-acting cylinder 1 (7) is provided in the sliding groove of the base (1), and the piston rod of the single-acting cylinder 2 (12) is connected to the friction pad (13) by Velcro.

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