Positioning welding equipment for power pipe

Abstract

The invention discloses a power pipe positioning welding device which comprises a supporting plate, two vertical plates are symmetrically and fixedly connected to the upper end of the supporting plate, moving plates are fixedly connected to the opposite sides of the two vertical plates, three-jaw chucks are fixedly connected to the opposite sides of the two moving plates, a concentric-square-shaped frame is fixedly connected to the upper end of the supporting plate, and the concentric-square-shaped frame is fixedly connected to the lower end of the supporting plate. Two supporting blocks are symmetrically and fixedly connected to the inner bottom of the concentric-square-shaped frame, and the upper end faces of the two supporting blocks are both in an arc face shape. And the hot melting mechanism comprises a rectangular penetrating opening which jointly penetrates through the interior of the concentric-square-shaped frame and the supporting plate, a vertical plate is arranged in the rectangular penetrating opening, and rectangular grooves are formed in the two sides of the vertical plate. According to the welding equipment, in the actual use process, after welding operation contact, the two electric heating plates firstly move relatively and then move downwards, deformation of the heating melting position is not prone to being caused, in addition, waste gas generated in the welding process can be absorbed, and the surrounding environment is prevented from being affected.

Description

Technical Field

[0001] The present invention relates to the field of power pipe connection, and in particular to a positioning welding device for power pipes. Background Art

[0002] In the laying and connection of power pipes, welding equipment plays a key role. Traditional power pipe welding equipment has many shortcomings during operation.

[0003] After the welding operation, the movement mode of the electric heating plate of traditional equipment is usually to move up or down relative to the pipe body after heating is completed. Under the action of friction, it is very easy to cause uneven force on the heated and melted parts of the power pipe, which in turn causes deformation problems, affects the welding quality of the subsequent finished product, and increases the probability of safety hazards such as leakage in subsequent use;

[0004] In addition, a certain amount of waste gas will be generated during the welding process of power pipes. These waste gases may contain harmful substances. Most traditional welding equipment lacks effective waste gas absorption devices, and the waste gas is directly discharged into the surrounding environment, which not only pollutes the air quality, but also may endanger the health of operators. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a positioning welding device for electric pipes. During actual use, after the welding operation is carried out, the two heating plates first move relative to each other and then move downward, which is less likely to cause deformation at the heated and melted areas. In addition, the exhaust gas generated during the welding process can be absorbed to avoid affecting the surrounding environment.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A positioning welding device for electric pipes includes a support plate, the upper end of the support plate is symmetrically fixedly connected to two vertical plates, the opposite sides of the two vertical plates are fixedly connected to a movable plate, the opposite sides of the two movable plates are fixedly connected to a three-jaw chuck, the upper end of the support plate is fixedly connected to a circular frame, the inner bottom of the circular frame is symmetrically fixedly connected to two support blocks, and the upper end surfaces of the two support blocks are both arc-shaped; a hot melt mechanism, the hot melt mechanism includes a rectangular through-hole that passes through the inside of the circular frame and the support plate, a vertical plate is provided in the rectangular through-hole, rectangular grooves are provided on both sides of the vertical plate, and the two rectangular grooves are slidably connected to the electric heating plate; a moving mechanism, the moving mechanism is used to move the two electric heating plates; a smoke removal mechanism, the smoke removal mechanism is used to absorb and centrally treat the waste gas generated during the welding process.

[0008] Preferably, a plurality of base frames are fixedly connected to the lower end of the support plate.

[0009] Preferably, two guide grooves are provided at the upper end of the support plate, and the lower ends of the two movable plates are fixedly connected with guide blocks, and the lower ends of the two guide blocks extend into the guide grooves and are slidably connected to the inner walls of the guide grooves.

[0010] Preferably, the moving mechanism includes a U-shaped frame fixedly connected to the lower end of the support plate, the upper end of the horizontal part of the U-shaped frame is fixedly connected to the second electric telescopic rod, the telescopic end of the second electric telescopic rod is fixedly connected to the lifting plate, the lower end of the vertical plate is fixedly connected to the first piston cylinder, a first piston plate that can slide up and down is provided in the first piston cylinder, the lower end of the first piston plate is fixedly connected to the first piston rod, the lower end of the first piston rod passes through the inner bottom of the first piston cylinder and is fixedly connected to the upper end of the lifting plate.

[0011] Preferably, a columnar cavity is opened in the vertical plate, and two third piston plates are slidably connected in the columnar cavity. The two third piston plates are elastically connected by a second spring, and the opposite sides of the two third piston plates are fixedly connected with connecting rods, and the other ends of the two connecting rods pass through the corresponding columnar cavity and are fixedly connected to the corresponding electric heating plate. The inner bottom space of the columnar cavity is connected with the inner top space of the first piston cylinder through a connecting channel, and the upper end of the first piston plate is elastically connected to the inner top of the first piston cylinder through a first spring.

[0012] Preferably, the inner middle space of the cylindrical cavity, the connecting channel and the inner top space of the first piston cylinder are all filled with hydraulic oil.

[0013] Preferably, the smoke removal mechanism includes a second piston cylinder fixedly connected to the lower end of the support plate, a second piston plate that can slide up and down is provided in the second piston cylinder, the lower end of the second piston plate is fixedly connected to the second piston rod, the lower end of the second piston rod is fixedly connected to the upper end of the lifting plate, and a filter box is installed at the upper end of the circular frame, the inner top space of the second piston cylinder is connected to the outside world through a one-way port, the inner top plate space of the second piston cylinder is connected to the filter box through a one-way pipe, and the rear space of the filter box is connected to the internal space of the circular frame through a connecting pipe.

[0014] Preferably, a one-way valve is installed inside the one-way port and the one-way tube. The one-way valve inside the one-way tube flows in a one-way direction from the front space of the filter box into the second piston cylinder, and the one-way valve inside the one-way port flows in a one-way direction from the second piston cylinder to the outside world.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, after the hot melting is completed, the second electric telescopic rod is started in the reverse direction. When driving the lifting plate to move downward, the first spring is first reset to suck the oil, so that the two heating plates first move relative to each other and then move downward. Compared with the existing technology, this movement mode can reduce the risk of uneven force at the heating and melting point of the power pipe, is less likely to cause deformation of the power pipe, and ensure the quality of welding.

[0017] 2. By fixing the two pipe bodies with a three-jaw chuck and then adjusting the position with the first electric telescopic rod, the opposite ends of the power pipes are extended between the support blocks and located on the left and right sides of the electric heating plate, achieving precise positioning, creating good conditions for the subsequent accurate contact and welding of the hot-melt ends of the power pipes, and improving the accuracy of the welding operation.

[0018] 3. The downward movement of the lifting plate drives the second piston rod and the second piston plate to move downward in the second piston cylinder. By utilizing the flow direction setting of the one-way valve, the waste gas generated by welding in the circular frame passes through the connecting pipe, the filter box, and the one-way pipe in sequence into the second piston cylinder and is discharged to the outside, thereby realizing the absorption and centralized treatment of the waste gas and avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a positioning welding device for power pipes proposed by the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the left side perspective;

[0021] Figure 3 for Figure 1 Schematic cross-sectional view of ;

[0022] Figure 4 for Figure 3 A magnified view of point A;

[0023] Figure 5 for Figure 3 Enlarged view of point B.

[0024] In the figure: 1 support plate, 2 base frame, 3 vertical plate, 4 first electric telescopic rod, 5 movable plate, 6 three-jaw chuck, 7 U-shaped frame, 8 second electric telescopic rod, 9 lifting plate, 10 circular frame, 11 filter box, 12 one-way pipe, 13 connecting pipe, 14 second piston cylinder, 15 one-way port, 16 support block, 17 arcuate surface, 18 rectangular through-port, 19 vertical plate, 20 cylindrical cavity, 21 third piston plate, 22 second spring, 23 connecting channel, 24 connecting rod, 25 electric heating plate, 26 second piston plate, 27 second piston rod, 28 first piston cylinder, 29 first spring, 30 first piston plate, 31 first piston rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] Reference Figure 1-5 The top end of the support plate 1 is fixedly connected to the two support blocks 16, and the upper end of the support plate 1 is symmetrically fixedly connected to the two vertical plates 3. The opposite sides of the two vertical plates 3 are fixedly connected to the movable plate 5. The opposite sides of the two movable plates 5 are fixedly connected to the three-jaw chuck 6. The three-jaw chuck 6 can limit the two pipes to be welded. The upper end of the support plate 1 is fixedly connected to the circular frame 10. The inner bottom of the circular frame 10 is symmetrically fixedly connected to two support blocks 16. The upper end surfaces of the two support blocks 16 are both arc-shaped. After the subsequent power pipe is installed, the two first electric telescopic rods 4 are activated to allow the opposite ends of the two power pipes to extend to the position between the two support blocks 16 (without contact) and be located on the left and right sides of the two electric heating plates 25. The upper end of the support plate 1 is provided with two guide grooves, and the lower ends of the two movable plates 5 are fixedly connected to guide blocks. The lower ends of the two guide blocks extend into the guide groove and are slidably connected to the inner wall of the guide groove;

[0028] As an embodiment of the present invention, a hot melt mechanism is further included. The hot melt mechanism includes a rectangular through-hole 18 that penetrates the interior of the circular frame 10 and the support plate 1. A vertical plate 19 is disposed in the rectangular through-hole 18. Rectangular grooves are formed on both sides of the vertical plate 19. The two rectangular grooves are both slidably connected to the electric heating plate 25.

[0029] As an embodiment of the present invention, it also includes a moving mechanism, which is used to move the two electric heating plates 25. The moving mechanism includes a U-shaped frame 7 fixedly connected to the lower end of the support plate 1, and the upper end of the horizontal part of the U-shaped frame 7 is fixedly connected to the second electric telescopic rod 8, and the telescopic end of the second electric telescopic rod 8 is fixedly connected to the lifting plate 9. The lower end of the vertical plate 19 is fixedly connected to the first piston cylinder 28, and a first piston plate 30 that can slide up and down is provided in the first piston cylinder 28. The lower end of the first piston plate 30 is fixedly connected to the first piston rod 31, and the lower end of the first piston rod 31 passes through the inner bottom of the first piston cylinder 28 and is fixedly connected to the upper end of the lifting plate 9. A columnar cavity 20 is opened in the vertical plate 19, and two third piston plates 21 are slidably connected in the columnar cavity 20. The two third piston plates 21 are elastically connected by a second spring 22. The opposite sides of the plug plate 21 are fixedly connected with connecting rods 24, and the other ends of the two connecting rods 24 pass through the corresponding cylindrical cavity 20 and are fixedly connected to the corresponding electric heating plate 25. The inner bottom space of the cylindrical cavity 20 is communicated with the inner top space of the first piston cylinder 28 through the connecting channel 23. The upper end of the first piston plate 30 is elastically connected to the inner top of the first piston cylinder 28 through the first spring 29. The inner middle space of the cylindrical cavity 20, the connecting channel 23 and the inner top space of the first piston cylinder 28 are all filled with hydraulic oil. Through the use of the moving mechanism, the first spring 29 is in a slightly compressed state during the initial upward movement. Subsequently, when the vertical plate 19 moves up to contact the inner top of the circular frame 10, the second electric telescopic rod 8 continues to start, and the two electric heating plates 25 will move relative to each other and contact the power pipe to be melted. Similarly, when the heating is completed, the above steps will be performed in reverse.

[0030] As an embodiment of the present invention, it also includes a smoke removal mechanism, which is used to absorb and centrally treat the exhaust gas generated during the welding process. The smoke removal mechanism includes a second piston cylinder 14 fixedly connected to the lower end of the support plate 1, and a second piston plate 26 that can slide up and down is provided in the second piston cylinder 14. The lower end of the second piston plate 26 is fixedly connected to the second piston rod 27, and the lower end of the second piston rod 27 is fixedly connected to the upper end of the lifting plate 9. The upper end of the circular frame 10 is provided with a filter box 11, and the inner top space of the second piston cylinder 14 is connected to the outside world through the one-way port 15. The inner top plate space of the second piston cylinder 14 is connected to the filter box 11 through the one-way pipe 12, and the rear side space of the filter box 11 is connected to the internal space of the circular frame 10 through the connecting pipe 13;

[0031] As an embodiment of the present invention, a one-way valve is installed inside the one-way port 15 and the one-way tube 12. The flow direction of the one-way valve inside the one-way tube 12 is that the front space of the filter box 11 flows into the second piston cylinder 14 in one direction, and the flow direction of the one-way valve inside the one-way port 15 is that the second piston cylinder 14 flows out of the outside in one direction.

[0032] In the present invention, the two pipes to be welded are placed on two three-jaw chucks 6 respectively, and the pipes are fixed by the three-jaw chucks 6. The two first electric telescopic rods 4 are activated to extend the opposite ends of the two power pipes to the position between the two support blocks 16 (not in contact) and to the left and right of the two electric heating plates 25;

[0033] Start the second electric telescopic rod 8 at the upper end of the U-shaped frame 7, the telescopic end of the second electric telescopic rod 8 drives the lifting plate 9 to move upward, the lifting plate 9 moves upward and drives the first piston rod 31 to move upward, the first piston rod 31 drives the first piston plate 30 to move upward, during the initial upward movement, the first spring 29 is in a slightly compressed state, and the support of the first spring 29 will allow the vertical plate 19 to move upward. When the vertical plate 19 moves up to contact the top of the circular frame 10, the second electric telescopic rod 8 continues to start, and the position of the vertical plate 19 is relatively fixed at this time. The first piston plate 30 continues to move upward to push the hydraulic oil, so that the two electric heating plates 25 are in the torque. The electric heating plates 25 move relative to each other in the shaped groove until they contact the power pipe to be melted. The electric heating plate 25 heats and melts the power pipe to complete the heat melting. After the heat melting is completed, the second electric telescopic rod 8 starts in the reverse direction, driving the lifting plate 9 to move downward. During the descending process, the first spring 29 will first reset, and the oil in the middle space of the cylindrical cavity 20 will be pumped into the top space of the first piston cylinder 28, so that the two electric heating plates 25 move relative to each other first. As the second electric telescopic rod 8 continues to contract, the vertical plate 19 will move downward. That is, the two electric heating plates 25 will first move relative to each other and then move downward. Compared with the existing technology, it is less likely to cause deformation of the power pipe;

[0034] When the lifting plate 9 moves downward, it drives the second piston rod 27 downward, and the second piston rod 27 drives the second piston plate 26 downward in the second piston cylinder 14. Since the one-way valve inside the one-way port 15 flows in a one-way direction from the second piston cylinder 14 to the outside world, and the one-way valve inside the one-way pipe 12 flows in a one-way direction from the front space of the filter box 11 to the second piston cylinder 14, during the downward movement of the second piston plate 26, the exhaust gas generated in the internal space of the circular frame 10 enters the rear space of the filter box 11 through the connecting pipe 13, and then enters the top space of the second piston cylinder 14 through the one-way pipe 12 to achieve exhaust gas absorption and centralized treatment;

[0035] Finally, the two first electric telescopic rods 4 are started to extend, so that the hot-melt ends of the two power pipes are in contact and welded.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A positioning welding device for electric power pipes, characterized in that: include: A support plate (1), wherein the upper end of the support plate (1) is symmetrically fixedly connected to two vertical plates (3), opposite sides of the two vertical plates (3) are fixedly connected to movable plates (5), opposite sides of the two movable plates (5) are fixedly connected to three-jaw chucks (6), the upper end of the support plate (1) is fixedly connected to a circular frame (10), the inner bottom of the circular frame (10) is symmetrically fixedly connected to two support blocks (16), and the upper end surfaces of the two support blocks (16) are both arc-shaped; A hot melt mechanism, the hot melt mechanism comprising a rectangular through-hole (18) that passes through the inside of the circular frame (10) and the support plate (1), a vertical plate (19) being provided in the rectangular through-hole (18), rectangular grooves being provided on both sides of the vertical plate (19), and both rectangular grooves being slidably connected to the electric heating plate (25); A moving mechanism, the moving mechanism being used to move the two electric heating plates (25); The fume removal mechanism is used to absorb and centrally treat the waste gas generated during the welding process.

2. The positioning welding equipment for electric power pipe according to claim 1, characterized in that: The lower end of the support plate (1) is fixedly connected to a plurality of base frames (2).

3. The positioning welding equipment for electric power pipes according to claim 1, characterized in that: Two guide grooves are provided at the upper end of the support plate (1), and the lower ends of the two movable plates (5) are fixedly connected with guide blocks. The lower ends of the two guide blocks extend into the guide grooves and are slidably connected to the inner walls of the guide grooves.

4. The positioning welding equipment for electric power pipes according to claim 1, characterized in that: The moving mechanism comprises a U-shaped frame (7) fixedly connected to the lower end of the support plate (1); the upper end of the horizontal portion of the U-shaped frame (7) is fixedly connected to a second electric telescopic rod (8); the telescopic end of the second electric telescopic rod (8) is fixedly connected to a lifting plate (9); the lower end of the vertical plate (19) is fixedly connected to a first piston cylinder (28); a first piston plate (30) that can slide up and down is provided in the first piston cylinder (28); the lower end of the first piston plate (30) is fixedly connected to a first piston rod (31); the lower end of the first piston rod (31) passes through the inner bottom of the first piston cylinder (28) and is fixedly connected to the upper end of the lifting plate (9).

5. The positioning welding equipment for electric power pipes according to claim 4, characterized in that: A columnar cavity (20) is provided in the vertical plate (19), and two third piston plates (21) are slidably connected in the columnar cavity (20). The two third piston plates (21) are elastically connected to each other through a second spring (22). The opposite sides of the two third piston plates (21) are fixedly connected with connecting rods (24), and the other ends of the two connecting rods (24) pass through the corresponding columnar cavity (20) and are fixedly connected to the corresponding electric heating plate (25). The inner bottom space of the columnar cavity (20) is communicated with the inner top space of the first piston cylinder (28) through a connecting channel (23), and the upper end of the first piston plate (30) is elastically connected to the inner top of the first piston cylinder (28) through a first spring (29).

6. The positioning welding equipment for electric power pipes according to claim 5, characterized in that: The inner middle space of the columnar cavity (20), the connecting channel (23) and the inner top space of the first piston cylinder (28) are all filled with hydraulic oil.

7. The positioning welding equipment for electric power pipes according to claim 1, characterized in that: The smoke removal mechanism comprises a second piston cylinder (14) fixedly connected to the lower end of the support plate (1), a second piston plate (26) which can slide up and down is provided in the second piston cylinder (14), the lower end of the second piston plate (26) is fixedly connected to a second piston rod (27), the lower end of the second piston rod (27) is fixedly connected to the upper end of the lifting plate (9), a filter box (11) is installed at the upper end of the circular frame (10), the inner top space of the second piston cylinder (14) is connected to the outside through a one-way port (15), the inner top plate space of the second piston cylinder (14) is connected to the filter box (11) through a one-way pipe (12), and the rear side space of the filter box (11) is connected to the internal space of the circular frame (10) through a connecting pipe (13).

8. The positioning welding equipment for electric power pipes according to claim 7, characterized in that: One-way valves are installed inside the one-way port (15) and the one-way tube (12). The one-way valve inside the one-way tube (12) flows in a direction that the front space of the filter box (11) flows into the second piston cylinder (14) in a one-way direction, and the one-way valve inside the one-way port (15) flows in a direction that the second piston cylinder (14) discharges the outside in a one-way direction.

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