Trailer type full-automatic welding machine

Abstract

The utility model discloses a trailer formula full -automatic welding machine, including work table, the pipe material clamping mechanism and hydraulic drive mechanism are installed on the work table, and the pipe material clamping mechanism includes movable pipe material clamping subassembly and fixed pipe material clamping subassembly, and hydraulic drive mechanism controls milling cutter assembly and hot melt plate assembly movement, and cooperate pipe material clamping mechanism realizes pipe material hot melt welding, and hydraulic drive system includes the transverse displacement mechanism of drive milling cutter assembly and hot melt plate assembly horizontal movement, and the longitudinal displacement mechanism of drive milling cutter assembly and hot melt plate assembly elevating, and transverse displacement mechanism can move the milling cutter in milling cutter assembly or the hot melt plate in hot melt plate assembly to the top between two root pipe materials of waiting for welding, and longitudinal displacement mechanism can enter the milling cutter in milling cutter assembly or the hot melt plate of hot melt plate assembly between two root pipe materials of waiting for welding, and realize pipe material hot melt welding's full -automatic welding operation through hydraulic drive system.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a trailer-mounted fully automatic welding machine. Background Technology

[0002] PE pipes are widely used in urban water supply, urban gas supply, and farmland irrigation due to their good deformation plasticity and weldability. The connection of PE pipes and fittings requires the use of a hot-melt welding machine. During on-site construction, pipes need to be hot-melt welded together. This requires a milling cutter and a hot-melt plate. The milling cutter is used to prepare the end face of the pipe to be welded, making it flat, while the hot-melt plate is used to heat-melt the end face of the pipe to be welded, thus achieving hot-melt welding. In existing technologies, the milling cutter and hot-melt plate are independent of the welding equipment. During construction, the milling cutter and hot-melt plate need to be manually placed in the position of the pipe to be welded. This method is inefficient and labor-intensive. Therefore, this patent aims to solve this problem. Utility Model Content

[0003] The purpose of this utility model is to provide a trailer-mounted fully automatic welding machine to solve the problems mentioned in the background art, and to realize fully automatic welding operations for pipe hot melt welding through a hydraulic drive system.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a trailer-mounted fully automatic welding machine, including a worktable, on which a pipe clamping mechanism and a hydraulic drive mechanism are installed. The pipe clamping mechanism includes a movable pipe clamping assembly and a fixed pipe clamping assembly. The hydraulic drive mechanism controls the movement of the milling cutter assembly and the hot melt plate assembly, and cooperates with the pipe clamping mechanism to achieve hot melt welding of the pipes. The hydraulic drive system includes a lateral displacement mechanism for driving the milling cutter assembly and the hot melt plate assembly to move horizontally, and a longitudinal displacement mechanism for driving the milling cutter assembly and the hot melt plate assembly to move vertically. The lateral displacement mechanism can move the milling cutter in the milling cutter assembly or the hot melt plate in the hot melt plate assembly to the space between the two pipes to be welded. The longitudinal displacement mechanism can move the milling cutter in the milling cutter assembly or the hot melt plate in the hot melt plate assembly into the space between the two pipes to be welded.

[0005] Preferably, the lateral displacement mechanism includes a box body mounted on the workbench. Guide rails are installed on the top surface of the box body and the side facing the pipe clamping mechanism. A slider is installed on the guide rails. A vertical plate is installed outside the slider on the side of the box body, and a horizontal plate is installed outside the slider on the top surface of the box body. The vertical plate and the horizontal plate are fixedly connected in an L-shaped structure. A first hydraulic cylinder is installed on the top surface of the box body. The push rod of the first hydraulic cylinder is connected to a drive shaft. A milling cutter assembly and a hot melt plate assembly are installed on the drive shaft.

[0006] Preferably, the direction of the guide rail is parallel to the axial direction of the pipe in the pipe clamping mechanism, and the number of sliders installed on the guide rail is at least two.

[0007] Preferably, both the milling cutter assembly and the hot melt plate assembly include a swing arm, the head end of which is provided with a shaft hole through which the drive shaft passes. Each swing arm is equipped with a bearing seat on both sides, the bearing seat is fixed on the horizontal plate, and each swing arm is spaced apart from the bearing seats on both sides.

[0008] Preferably, one end of the drive shaft connected to the first hydraulic cylinder push rod is provided with a limiting head, and the other end is provided with a threaded part passing through the outermost bearing seat, with a limiting nut installed on the threaded part.

[0009] Preferably, the longitudinal displacement mechanism includes two second hydraulic cylinders, one end of each second hydraulic cylinder is connected to a cylinder seat by a pin, the cylinder seat is mounted on the vertical plate, and the push rod of each second hydraulic cylinder is connected to the swing arm of the milling cutter assembly and the swing arm of the hot melt plate assembly by pins respectively.

[0010] Preferably, the housing contains a hydraulic cylinder drive motor, a hydraulic cylinder proportional valve, and an oil tank that works in conjunction with the hydraulic cylinder proportional valve. The inlet and outlet of the first and second hydraulic cylinders are connected to the hydraulic cylinder proportional valve via hydraulic pipes, and the hydraulic cylinder drive motor provides power to the hydraulic cylinder proportional valve.

[0011] Preferably, four wheels are installed under the workbench.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the first hydraulic cylinder realizes the horizontal movement of the milling cutter assembly and the hot melt plate assembly, and the second hydraulic cylinder realizes the lifting movement of the milling cutter assembly and the hot melt plate assembly. Together with the pipe clamping mechanism, the pipe hot melt welding operation is realized. The first hydraulic cylinder and the second hydraulic cylinder realize the control of oil inlet and outlet through the cylinder drive motor combined with the cylinder proportional valve, so as to realize the fully automatic pipe welding operation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the external structure of the housing of this utility model; Figure 3 This is a schematic diagram of the internal structure of the box body of this utility model.

[0014] In the diagram: 1. Workbench; 2. Upper ring; 3. Lower ring; 4. Hydraulic cylinder; 5. Cylinder proportional valve; 6. Guide shaft; 7. Milling cutter; 8. Hot melt plate; 9. Housing; 10. Guide rail; 11. Slider; 12. Vertical plate; 13. Horizontal plate; 14. First hydraulic cylinder; 15. Drive shaft; 16. Swing arm; 17. Bearing seat; 18. Limit head; 19. Limit nut; 20. Second hydraulic cylinder; 21. Cylinder seat; 22. Cylinder drive motor; 23. Oil tank. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 A trailer-mounted fully automatic welding machine includes a worktable 1. The worktable 1 is equipped with a pipe clamping mechanism and a hydraulic drive mechanism. The pipe clamping mechanism includes a movable pipe clamping assembly and a fixed pipe clamping assembly. Both the movable and fixed pipe clamping assemblies employ a double clamping method, clamping the pipes via two upper rings 2 and a lower ring 3 using clamping bolts. The movable pipe clamping assembly is driven by a hydraulic cylinder 4, which is connected to a proportional valve 5 (not shown in the diagram) via a hydraulic pipe. Therefore, under the action of the hydraulic cylinder 4, the movable pipe clamping assembly moves closer to or further away from the fixed pipe clamping assembly along a guide shaft 6. Four wheels are installed under the worktable 1 to facilitate the movement of the fully automatic welding machine.

[0017] The area between the movable and fixed pipe clamping assemblies is the welding zone. To complete the hot-melt welding, a milling cutter 7 and a hot-melt plate 8 are required. This patent designs a hydraulic drive system to achieve a fully automatic process for the milling cutter 7 and the hot-melt plate 8. The hydraulic drive mechanism controls the movement of the milling cutter assembly and the hot-melt plate assembly, and works in conjunction with the pipe clamping mechanism to achieve pipe hot-melt welding. The hydraulic drive system includes a lateral displacement mechanism that drives the milling cutter assembly and the hot-melt plate assembly to move horizontally, and a longitudinal displacement mechanism that drives the milling cutter assembly and the hot-melt plate assembly to move vertically. The lateral displacement mechanism can move the milling cutter 7 in the milling cutter assembly or the hot-melt plate 8 in the hot-melt plate assembly to the two pipe clamping assemblies. Above the pipes to be welded, the longitudinal displacement mechanism can move the milling cutter 7 in the milling cutter assembly or the hot melt plate 8 in the hot melt plate assembly between the two pipes to be welded. When the pipes to be welded need to be milled, the transverse displacement mechanism drives the milling cutter 7 in the milling cutter assembly to move above the two pipes to be welded. When hot melting is required, the same principle applies. After reaching this area, the longitudinal displacement mechanism drives the milling cutter 7 in the milling cutter assembly to enter between the two pipes to be welded. When hot melting is required, the same principle applies. Then, driven by the movable pipe clamping assembly, the end faces of the two pipes come into contact with the milling cutter 7 or the hot melt plate 8 to realize the milling or hot melting operation.

[0018] The lateral displacement mechanism includes a housing 9 mounted on a workbench 1. Guide rails 10 are installed on the top surface of the housing 9 and on the side facing the pipe clamping mechanism. Slider blocks 11 are mounted on the guide rails 10. The direction of the guide rails 10 is parallel to the axial direction of the pipe in the pipe clamping mechanism. At least two sliders 11 are mounted on the guide rails 10. Vertical plates 12 are mounted outside the sliders 11 on the side of the housing 9, and horizontal plates 13 are mounted outside the sliders 11 on the top surface of the housing 9. The vertical plates 12 and horizontal plates 13 are fixedly connected in an L-shape, allowing them to slide along the guide rails 10. A first hydraulic cylinder 14 is mounted on the top surface of the housing 9. The push rod of the first hydraulic cylinder 14 is connected to a drive shaft 15. A milling cutter assembly and a hot melt plate assembly are mounted on the drive shaft 15. Both the milling cutter assembly and the hot melt plate assembly include swing arms 16. A shaft hole is provided at the head end of each swing arm 16, through which the drive shaft 15 passes. Each swing arm 16 has two... A bearing seat 17 is installed on the side and fixed on the horizontal plate 13. Each swing arm 16 is spaced from the bearing seats 17 on both sides. This space is provided to accommodate the fixed pipe clamping assembly. Since the fixed pipe clamping assembly is stationary, the pipe it clamps is also stationary. Therefore, the hot melt plate 8 and the milling cutter 7 are moved as close as possible to the fixed pipe clamping assembly. Under the action of the movable pipe clamping assembly, the pipe of the movable pipe clamping assembly pushes the milling cutter 7 or the hot melt plate 8, so that the other side of the milling cutter 7 or the hot melt plate 8 contacts the pipe end face of the fixed pipe clamping assembly. It is no longer necessary to repeatedly adjust it through the first hydraulic cylinder 14. In addition, after hot melt welding, there is a certain adhesive force between the hot melt plate 8 and the pipe. In addition to adjusting it with the first hydraulic cylinder 14, the hot melt plate 8 can also be manually separated from the pipe of the fixed pipe clamping assembly.

[0019] The aforementioned drive shaft 15 is provided with a limiting head 18 at one end of the push rod of the first hydraulic cylinder 14, and a threaded part is provided at the other end where it passes through the outermost bearing seat 17. A limiting nut 19 is installed on the threaded part. Since the push rod of the first hydraulic cylinder 14 is connected to the drive shaft 15, and since the bearing seat 17 is fixed to the horizontal plate 13, the presence of the limiting head 18 and the limiting nut 19 on the outermost two sides of the bearing seats 17 respectively enables the drive shaft 15 to drive the horizontal plate 13 to move.

[0020] The longitudinal displacement mechanism includes two second hydraulic cylinders 20. One end of each second hydraulic cylinder 20 is connected to a cylinder seat 21 by a pin. The cylinder seat 21 is mounted on a vertical plate 12. The push rod of each second hydraulic cylinder 20 is connected to the swing arm 16 of the milling cutter assembly and the swing arm 16 of the hot melt plate assembly by pins respectively. The pin connection is a movable connection. The head end of the swing arm 16 is set on the drive shaft 15. When the push rod of the second hydraulic cylinder 20 pushes out, it can drive the swing arm 16 to lift. When the push rod of the second hydraulic cylinder 20 retracts, it drives the swing arm 16 to lower.

[0021] The housing 9 houses a hydraulic cylinder drive motor 22, a hydraulic cylinder proportional valve 5, and an oil tank 23 that works in conjunction with the hydraulic cylinder proportional valve 5. The inlet and outlet of the first hydraulic cylinder 14 and the second hydraulic cylinder 20 are connected to the hydraulic cylinder proportional valve 5 via hydraulic pipes (not shown in the hydraulic pipe diagram). The hydraulic cylinder drive motor 22 provides power to the hydraulic cylinder proportional valve 5. A window is opened on the side of the housing 9 facing the vertical plate 12. This window can be used to connect the hydraulic pipes from the hydraulic cylinder proportional valve 5 to the inlet and outlet of the first hydraulic cylinder 14 and the second hydraulic cylinder 20.

[0022] Working principle: In the initial state, the milling cutter 7 and the hot melt plate 8 are raised, placing the two pipes respectively at the movable pipe clamping assembly and the fixed pipe clamping assembly, and fixing them by the upper ring 2 and the lower ring 3. By controlling the first hydraulic cylinder 20, the push rod of the first hydraulic cylinder 20 drives the transmission shaft 15 to move. When the milling cutter assembly on the transmission shaft 15 moves to a position close to the pipe end face of the fixed pipe clamping assembly, the push rod of the second hydraulic cylinder 20 is retracted, causing the milling cutter assembly to descend. Specifically, the milling cutter 7 in the milling cutter assembly is located at the pipe end face. The movable pipe clamping assembly moves along the guide shaft 6 towards the fixed pipe clamping assembly. Due to the swing arm 16 of the milling cutter assembly and the shafts on both sides... The bearing 17 has a gap, so even when the first hydraulic cylinder 20 is not working, the swing arm 16 still has a distance to move left and right. Therefore, after the end face of the pipe in the movable pipe clamping assembly contacts one side of the milling cutter 7, it continues to push until the other side of the milling cutter 7 contacts the end face of the pipe in the fixed pipe clamping assembly. The milling cutter 7 is then activated to perform milling operations on the end face of the pipe, making the end face of the pipe flat. Then the movable pipe clamping assembly retracts and is pushed out by the push rod of the second hydraulic cylinder 20, causing the milling cutter 7 in the milling cutter assembly to be lifted. At this time, the milling operation of the pipe is completed. The hot melting operation of the pipe is based on the same principle. Finally, the movable pipe clamping assembly is moved again along the guide shaft 6 towards the fixed pipe clamping assembly until the two pipes are hot melt welded.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trailer-mounted fully automatic welding machine, comprising a worktable, on which a pipe clamping mechanism and a hydraulic drive mechanism are mounted, the pipe clamping mechanism comprising a movable pipe clamping assembly and a fixed pipe clamping assembly, the hydraulic drive mechanism controlling the movement of a milling cutter assembly and a hot melt plate assembly, and cooperating with the pipe clamping mechanism to achieve hot melt welding of the pipes, characterized in that: The hydraulic drive mechanism includes a lateral displacement mechanism for driving the milling cutter assembly and the hot melt plate assembly to move horizontally, and a longitudinal displacement mechanism for driving the milling cutter assembly and the hot melt plate assembly to move up and down. The lateral displacement mechanism can move the milling cutter in the milling cutter assembly or the hot melt plate in the hot melt plate assembly to the space between the two pipes to be welded, and the longitudinal displacement mechanism can move the milling cutter in the milling cutter assembly or the hot melt plate in the hot melt plate assembly into the space between the two pipes to be welded.

2. The trailer-mounted fully automatic welding machine according to claim 1, characterized in that: The lateral displacement mechanism includes a box set on the workbench. Guide rails are installed on the top surface of the box and the side facing the pipe clamping mechanism. A slider is installed on the guide rail. A vertical plate is installed outside the slider on the side of the box, and a horizontal plate is installed outside the slider on the top surface of the box. The vertical plate and the horizontal plate are fixedly connected in an L-shaped structure. A first hydraulic cylinder is installed on the top surface of the box. The push rod of the first hydraulic cylinder is connected to a drive shaft. A milling cutter assembly and a hot melt plate assembly are installed on the drive shaft.

3. The trailer-mounted fully automatic welding machine according to claim 2, characterized in that: The direction of the guide rail is parallel to the axial direction of the pipe in the pipe clamping mechanism, and the number of sliders installed on the guide rail is at least two.

4. The trailer-mounted fully automatic welding machine according to claim 2, characterized in that: Both the milling cutter assembly and the hot melt plate assembly include a swing arm. The head end of the swing arm is provided with a shaft hole, through which the drive shaft passes. Each swing arm is equipped with a bearing seat on both sides, and the bearing seats are fixed on the horizontal plate. Each swing arm is spaced apart from the bearing seats on both sides.

5. The trailer-mounted fully automatic welding machine according to claim 4, characterized in that: The drive shaft is equipped with a limit head at one end connected to the first hydraulic cylinder push rod, and a threaded part is provided at the other end where it passes through the outermost bearing seat, with a limit nut installed on the threaded part.

6. The trailer-mounted fully automatic welding machine according to claim 5, characterized in that: The longitudinal displacement mechanism includes two second hydraulic cylinders, one end of each second hydraulic cylinder is connected to a cylinder seat by a pin, the cylinder seat is mounted on the vertical plate, and the push rod of each second hydraulic cylinder is connected to the swing arm of the milling cutter assembly and the swing arm of the hot melt plate assembly by pins respectively.

7. The trailer-mounted fully automatic welding machine according to claim 6, characterized in that: The housing contains a hydraulic cylinder drive motor, a hydraulic cylinder proportional valve, and an oil tank that works in conjunction with the hydraulic cylinder proportional valve. The inlet and outlet of the first and second hydraulic cylinders are connected to the hydraulic cylinder proportional valve via hydraulic pipes. The hydraulic cylinder drive motor provides power to the hydraulic cylinder proportional valve.

8. The trailer-mounted fully automatic welding machine according to claim 1, characterized in that: Four wheels are installed under the workbench.

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