Auxiliary device for pipe prefabrication

Abstract

This utility model discloses an auxiliary device for pipe prefabrication, including a workbench with two vertical plates mounted on it. A servo motor is mounted on one of the vertical plates, and a bidirectional lead screw is connected to the output shaft of the servo motor. The bidirectional lead screw is rotatably connected between the two vertical plates. The bidirectional lead screw has two moving blocks connected by threaded rods, and each of the two moving blocks is equipped with a first connecting rod. Each of the two first connecting rods is equipped with a first clamping plate, which is arranged opposite to each other. A second connecting rod is slidably connected to each of the two first connecting rods. The two second connecting rods are horizontally arranged, and a third connecting rod is connected to the end of each second connecting rod furthest from the first connecting rod. Through the bidirectional lead screw, the device can clamp pipes of different specifications, thus meeting the positioning requirements of pipes of different specifications. It also solves the cumbersome work of fixing pipes with nuts and bolts in the prior art, further improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipeline prefabrication equipment technology, and in particular to an auxiliary device for pipeline prefabrication. Background Technology

[0002] With the rapid development of my country's social economy, the construction, renovation and expansion of various municipal pipe networks and large-scale water conservancy project pipe networks in urban areas are becoming more and more frequent. Most of the pipes in the pipe network projects are formed by connecting prefabricated large-diameter reinforced concrete pipes. The two ends of the prefabricated pipes are a convex ring and a groove that matches the convex ring. The convex ring and the groove facilitate the coaxial connection between the prefabricated pipes.

[0003] The utility model disclosed in CN220093483U is an automatic welding auxiliary device for prefabricated pipes with elbow-straight-elbow joints. It includes a welding chuck, a clamping assembly, and a mounting bracket. The mounting bracket is coaxially mounted on the welding chuck. The clamping assembly is fixedly mounted on one side of the mounting bracket and clamps both sides of the prefabricated pipe. A fixing assembly is provided on the clamping assembly to fix the prefabricated pipe within the clamping assembly. This utility model, through the clamping assembly and the fixing assembly, places the prefabricated pipe between the clamping assemblies and fixes the elbow within the clamping assembly. This allows for smooth rotation of the weld seam between the straight section and the elbow at the other end, achieving automatic welding. This solves the problem of excessive welding time spent manually welding pipes and reduces potential hazards caused by human factors.

[0004] In the device disclosed in the above utility model, the pipe is fixed between the first positioning plate and the second positioning plate by the cooperation between the slot and the bolt and nut. However, the position of the slot is fixed, which makes it difficult to meet the fixing requirements of pipes of different specifications. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary device for pipe prefabrication to solve the problem mentioned in the background art of difficulty in meeting the fixing requirements of pipes of different specifications.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for pipe prefabrication, comprising a workbench with two vertical plates mounted on it. A servo motor is mounted on one of the vertical plates, and a bidirectional lead screw is connected to the output shaft of the servo motor. The bidirectional lead screw is rotatably connected between the two vertical plates. The bidirectional lead screw has two moving blocks connected by threaded rods. A first connecting rod is mounted on each of the two moving blocks, and a first clamping plate is mounted on each of the two first connecting rods. The two first clamping plates are arranged opposite to each other. A second connecting rod is slidably connected to each of the two first connecting rods. The two second connecting rods are horizontally arranged, and a third connecting rod is connected to the end of each second connecting rod away from the first connecting rod. A second clamping plate is mounted on each of the two third connecting rods, and the two third connecting rods are slidably connected to the same moving plate. An electric telescopic rod is connected to the moving plate and is mounted on the workbench.

[0007] Preferably, each of the two first connecting rods has a connecting groove, and the two second connecting rods are slidably connected in the corresponding connecting grooves.

[0008] Preferably, a locking block is installed at the end of each of the two second connecting rods away from the electric telescopic rod, and the size of the locking block is larger than the size of the connecting groove.

[0009] Preferably, a sliding rod is connected between the two upright plates, and two movable blocks are slidably connected to the sliding rod.

[0010] Preferably, a connecting block is installed at the bottom of the movable plate, and a limiting groove is opened on the worktable, with the connecting block slidingly adapted to the limiting groove.

[0011] Preferably, a cylinder is provided at the bottom of the workbench, and a placement plate is connected to the output shaft of the cylinder. The placement plate is always located below the first clamping plate and above the bidirectional lead screw.

[0012] Preferably, a rubber pad is provided on each of the first and second clamps, and the rubber pad is installed on the corresponding clamp by means of sliding connection.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a bidirectional lead screw to clamp pipes of different specifications, thus meeting the positioning requirements of pipes of various sizes. It also solves the cumbersome work of fixing pipes with nuts and bolts in the prior art, further improving production efficiency.

[0015] In this invention, the second connecting rod enables the first clamping plate to move synchronously with the second clamping plate, thus completing the fixing of the two pipes with only one drive. The electric telescopic rod allows the second clamping plate to move closer to the first clamping plate, thereby completing the docking of the two pipes, further improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an auxiliary device for pipe prefabrication proposed in this utility model;

[0017] Figure 2 This is a side view of an auxiliary device for pipe prefabrication proposed in this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the connecting block and limiting groove of an auxiliary device for pipe prefabrication proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the cylinder and the placement plate of an auxiliary device for pipe prefabrication proposed in this utility model.

[0020] In the diagram: 1. Workbench; 2. Vertical plate; 3. Servo motor; 4. Two-way lead screw; 5. Moving block; 6. First connecting rod; 7. First clamping plate; 8. Second connecting rod; 9. Third connecting rod; 10. Second clamping plate; 11. Moving plate; 12. Electric telescopic rod; 13. Connecting groove; 14. Locking block; 15. Slide rod; 16. Connecting block; 17. Limiting groove; 18. Cylinder; 19. Storage plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4An auxiliary device for pipe prefabrication includes a workbench 1 with two vertical plates 2 mounted on it. A servo motor 3 is mounted on one of the vertical plates 2. A bidirectional lead screw 4 is connected to the output shaft of the servo motor 3. The bidirectional lead screw 4 is rotatably connected between the two vertical plates 2. The bidirectional lead screw 4 has two moving blocks 5 connected by threaded rods. A first connecting rod 6 is mounted on each of the two moving blocks 5. A first clamping plate 7 is mounted on each of the two first connecting rods 6. The two first clamping plates 7 are arranged opposite to each other. A second connecting rod 8 is slidably connected to each of the two first connecting rods 6. The two second connecting rods 8 are horizontally arranged, and a third connecting rod 9 is connected to the end of each second connecting rod 8 away from the first connecting rod 6. A second clamping plate 10 is mounted on each of the two third connecting rods 9. The two third connecting rods 9 are slidably connected to the same moving plate 11. An electric telescopic rod 12 is connected to the moving plate 11 and is mounted on the workbench 1.

[0023] When welding two pipes is required, the servo motor 3 drives the bidirectional lead screw 4 to rotate, which causes the moving block 5 to move the two first connecting rods 6 closer together, thereby causing the two first clamping plates 7 to move closer together and restrict the pipe between the two first clamping plates 7. When the two first connecting rods 6 move, the second connecting rod 8 drives the two third connecting rods 9 to move synchronously, so that the two second clamping plates 10 can fix the other pipe. Then, the electric telescopic rod 12 is activated, which pushes the moving plate 11 towards the first clamping plate 7, thereby causing the second clamping plate 10 and the pipe fixed on the second clamping plate 10 to move closer to the other pipe until the two make contact with each other, and then the pipe welding work is carried out.

[0024] Specifically, in this embodiment, each of the two first connecting rods 6 is provided with a connecting groove 13, and the two second connecting rods 8 are slidably connected in the corresponding connecting groove 13, so that the second connecting rod 8 can be slidably connected to the corresponding first connecting rod 6 through the corresponding connecting groove 13, thereby facilitating the maintenance of the connection relationship between the first connecting rod 6 and the third connecting rod 9, and providing conditions for the third connecting rod 9 to move closer to the first connecting rod 6.

[0025] Specifically, in this embodiment, a locking block 14 is installed at the end of each of the two second connecting rods 8 away from the electric telescopic rod 12. The size of the locking block 14 is larger than the size of the connecting groove 13, so that the second connecting rod 8 can always be connected to the first connecting rod 6 through the locking block 14, thus preventing the second connecting rod 8 from falling off the first connecting rod 6.

[0026] Specifically, in this embodiment, a sliding rod 15 is connected between the two upright plates 2, and two moving blocks 5 are slidably connected to the sliding rod 15, so that the sliding rod 15 can restrict the movement direction of the two moving blocks 5, so that the two moving blocks 5 can only move in the horizontal direction, thereby ensuring the movement accuracy of the two first clamping plates 7.

[0027] Specifically, in this embodiment, a connecting block 16 is installed at the bottom of the movable plate 11, and a limiting groove 17 is provided on the worktable 1. The connecting block 16 is slidably adapted to the limiting groove 17, so that the movable plate 11 can be slidably connected to the worktable 1 through the adaptability of the connecting block 16 and the limiting groove 17. Thus, the limiting groove 17 provides a guiding function for the movement of the movable plate 11, avoiding deviation.

[0028] Specifically, in this embodiment, a cylinder 18 is provided at the bottom of the workbench 1, and a placement plate 19 is connected to the output shaft of the cylinder 18. The placement plate 19 is always below the first clamping plate 7 and above the bidirectional lead screw 4, so that the pipe to be welded can be placed on the placement plate 19. The height of the placement plate 19 can be adjusted by the cylinder 18 so that the pipe on the placement plate 19 can always be within the clamping range of the first clamping plate 7 and the second clamping plate 10.

[0029] Specifically, in this embodiment, rubber pads are provided on several first clamping plates 7 and second clamping plates 10. The rubber pads are installed on the corresponding clamping plates 7 by means of sliding connection, so that when two first clamping plates 7 or two second clamping plates 10 are close to each other, the rubber pads will contact the pipe first, thereby protecting the pipe and avoiding wear that occurs when the pipe is in direct contact with the first clamping plate 7 or the second clamping plate 10.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An auxiliary device for pipe prefabrication, comprising a workbench (1), characterized in that: The workbench (1) is equipped with two vertical plates (2). A servo motor (3) is mounted on one of the vertical plates (2). A bidirectional lead screw (4) is connected to the output shaft of the servo motor (3). The bidirectional lead screw (4) is rotatably connected between the two vertical plates (2). The threaded connecting rod of the bidirectional lead screw (4) has two moving blocks (5). A first connecting rod (6) is mounted on each of the two moving blocks (5). A first clamping plate (7) is mounted on each of the two first connecting rods (6). The two first clamping plates (7) are arranged opposite to each other. Each of the two first connecting rods (6) is slidably connected to a second connecting rod (8). The two second connecting rods (8) are horizontally set, and a third connecting rod (9) is connected to the end of each second connecting rod (8) away from the first connecting rod (6). A second clamping plate (10) is installed on each of the two third connecting rods (9), and the two third connecting rods (9) are slidably connected to the same moving plate (11). An electric telescopic rod (12) is connected to the moving plate (11), and the electric telescopic rod (12) is installed on the workbench (1).

2. The auxiliary device for pipe prefabrication according to claim 1, characterized in that: Each of the two first connecting rods (6) has a connecting groove (13), and the two second connecting rods (8) are slidably connected in the corresponding connecting groove (13).

3. The auxiliary device for pipe prefabrication according to claim 1, characterized in that: Both of the second connecting rods (8) have a locking block (14) installed at the end away from the electric telescopic rod (12), and the size of the locking block (14) is larger than the size of the connecting groove (13).

4. An auxiliary device for pipe prefabrication according to claim 1, characterized in that: A slide rod (15) is connected between the two upright plates (2), and two movable blocks (5) are slidably connected to the slide rod (15).

5. An auxiliary device for pipe prefabrication according to claim 1, characterized in that: A connecting block (16) is installed at the bottom of the movable plate (11), and a limiting groove (17) is opened on the worktable (1). The connecting block (16) slides and adapts to the limiting groove (17).

6. An auxiliary device for pipe prefabrication according to claim 1, characterized in that: A cylinder (18) is provided at the bottom of the workbench (1), and a shelf (19) is connected to the output shaft of the cylinder (18). The shelf (19) is always below the first clamping plate (7) and above the bidirectional lead screw (4).

7. An auxiliary device for pipe prefabrication according to claim 1, characterized in that: Rubber pads are provided on several of the first clamping plates (7) and the second clamping plates (10), and the rubber pads are installed on the corresponding clamping plates (7) by means of sliding connection.

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