Tank butt welding positioning device

Abstract

The utility model discloses a tank body butt welding positioning device which comprises two sliding rails arranged on the ground in parallel. The supporting seats are connected to the upper ends of the two sliding rails in a sliding mode, the upper surfaces of the supporting seats are provided with arc-shaped grooves matched with the outer circle of a to-be-welded tank body, and the supporting seats are used for supporting the tank body; the positioning assemblies are symmetrically arranged on the two sides of the sliding rail and used for pushing the supporting bases to move so that the tank bodies located on the two supporting bases can be in butt joint, and each positioning assembly comprises a fixing base, a hydraulic telescopic rod, a fixing disc, a center rod, an anti-displacement mechanism and a pushing piece; according to the tank butt welding positioning device, it can be guaranteed that the tank cannot move in the moving and welding process, the welding quality is guaranteed, and meanwhile the surface of the tank is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a tank body butt welding positioning device. Background Technology

[0002] Large tanks are widely used in industries such as petroleum, chemical, and energy. For example, large tanks such as desulfurization towers and vacuum distillation towers are generally around ten meters high. These large tanks are usually welded together from multiple tanks. During the welding process, precise positioning is the key to ensuring the welding quality.

[0003] Existing positioning devices mostly use manual assistance for mechanical support. Due to the large mass of the tank, the tank may shift during movement and welding, resulting in deviations in the docking position and affecting the welding quality. In addition, using manual assistance for mechanical support can easily damage the surface of the tank. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a tank welding positioning device that can ensure that the tank will not shift during movement and welding, guarantee welding quality, and prevent damage to the surface of the tank. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tank body butt welding positioning device, comprising:

[0006] There are two slide rails, arranged parallel to each other on the ground;

[0007] The support base is slidably connected to the upper end of two slide rails. There are two support bases. The upper surface of the support base is provided with an arc-shaped groove that matches the outer circle of the tank body to be welded, for supporting the tank body.

[0008] A positioning component is symmetrically arranged on both sides of the slide rail to push the support base to move, so that the tanks located on the two support bases are connected. The positioning component includes a fixed base, a hydraulic telescopic rod, a fixed plate, a center rod, an anti-displacement mechanism, and a pushing component.

[0009] The fixed base is fixed to the ground. The hydraulic telescopic rod is located on one side of the fixed base. The telescopic end of the hydraulic telescopic rod is connected to the fixed plate. A central rod is located on one side of the fixed plate. The central rod coincides with the central axis of the tank. The anti-displacement mechanism is located on the outer side of the central rod and is used to press the inner wall of the tank tightly to prevent the tank from shifting during movement and welding. The pushing component is located at the lower end of the fixed plate and corresponds to the position of the support base.

[0010] As a preferred technical solution of this utility model, the anti-displacement mechanism is at least two sets and is evenly distributed along the length direction of the central rod. Each set of anti-displacement mechanism includes three mounting blocks. The three mounting blocks are evenly distributed around the central axis of the central rod. An electric telescopic rod is fixed on the mounting block. The telescopic end of the electric telescopic rod is connected to a fixed plate. A top block is fixed on the fixed plate.

[0011] As a preferred technical solution of this utility model, the upper end of the top block is machined with an arc-shaped structure that matches the inner side of the tank.

[0012] As a preferred embodiment of this invention, the top block is made of rubber.

[0013] As a preferred embodiment of this utility model, the pushing component includes a cylinder and a screw. The cylinder is symmetrically arranged at the lower end of the fixed disk, and the screw is threadedly connected inside the cylinder. A positioning cylinder is fixed on one side of the support base corresponding to the position of the screw, and the inner diameter of the positioning cylinder is adapted to the outer diameter of the screw.

[0014] As a preferred embodiment of this utility model, the fixing base has an L-shaped structure, and the lower end of the fixing base is connected to the ground by a ground bolt.

[0015] As a preferred embodiment of this utility model, the fixing base is provided with reinforcing ribs.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The tank welding positioning device is reasonably designed and ingeniously conceived. By setting a support base to support the tank to be welded, the lower end of the support base moves on the slide rail. By setting a positioning component, the anti-displacement mechanism in the positioning component supports the inside of the tank, avoiding damage to the outside of the tank. At the same time, the hydraulic telescopic rod pushes the support base to move, thereby pushing the tank to move. Under the action of the anti-displacement mechanism, the tank will not move relative to the support base. At the same time, the stability of the tank can be guaranteed during the welding process, ensuring that the butt joints are aligned and improving the welding quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the butt-welded tank body of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is the front view of the present utility model;

[0020] Figure 4 for Figure 3 The right view.

[0021] In the diagram: 1. Slide rail, 2. Support base, 3. Tank body, 4. Positioning assembly, 41. Fixed base, 42. Ground bolt, 43. Reinforcing rib, 44. Hydraulic telescopic rod, 45. Fixed plate, 46. Center rod, 47. Anti-displacement mechanism, 471. Mounting block, 472. Electric telescopic rod, 473. Fixed plate, 474. Top block, 48. Pushing component, 481. Cylinder, 482. Screw, 5. Positioning cylinder. Detailed Implementation

[0022] 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 (for ease of description and understanding, hereinafter referred to as...). Figure 3 (The above is described above). Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a tank body welding positioning device, including a slide rail 1, a support base 2 and a positioning component 4;

[0024] There are two slide rails 1, which are laid parallel to each other on the ground. Two support seats 2 are slidably connected to the upper end of the two slide rails 1. The upper surface of the support seats 2 is provided with an arc groove that matches the outer circle of the tank body 3 to be welded, so that the tank body 3 can be placed on the support seats 2 by a lifting device.

[0025] Positioning components 4 are symmetrically arranged on both sides of slide rail 1. Positioning components 4 include fixed base 41, hydraulic telescopic rod 44, fixed plate 45, center rod 46, anti-displacement mechanism 47, and pusher 48. Fixed base 41 has an L-shaped structure. The lower end of fixed base 41 is connected to the ground by ground bolt 42. In order to improve the overall strength of fixed base 41, reinforcing ribs 43 are provided on fixed base 41. The fixed end of hydraulic telescopic rod 44 is installed on one side of fixed base 41. The telescopic end of hydraulic telescopic rod 44 is connected to fixed plate 45. Center rod 46 is provided on one side of fixed plate 45. Center rod 46 coincides with the central axis of tank body 3. Anti-displacement mechanism 47 is provided on the outer side of center rod 46 to press the inner wall of tank body 3 tightly to prevent tank body 3 from shifting during movement and welding. Pusher 48 is provided at the lower end of fixed plate 45. Under the action of hydraulic telescopic rod 44, it contacts support base 2 and pushes support base 2 to move, so that the tank welding surfaces on the two support bases 2 are in contact.

[0026] Furthermore, to ensure the fixation of the tank 3 inside and to prevent inertial displacement due to the large mass of the tank 3 during movement, the anti-displacement mechanism 47 consists of at least two sets, evenly distributed along the length of the central rod 46. Each set of anti-displacement mechanism 47 includes three mounting blocks 471, which are evenly distributed around the central axis of the central rod 46. An electric telescopic rod 472 is fixed on the mounting block 471, and the telescopic end of the electric telescopic rod 472 is connected to the fixing plate 473. A top block 474 is fixed on the fixing plate 473. Under the extension of the hydraulic telescopic rod 44, the anti-displacement mechanism 47 enters the interior of the tank 3. Then, by controlling the extension of the electric telescopic rod 472, the top block 474 is pressed tightly against the inner wall of the tank 3 to fix the tank 3 and prevent relative displacement of the tank 3 on the support 2 during movement.

[0027] In order to increase the contact area between the top block 474 and the inner wall of the tank 3, the upper end of the top block 474 is machined with an arc-shaped structure that matches the inner side of the tank 3.

[0028] To prevent the top block 474 from damaging the inner wall of the tank 3, and to increase the friction between the top block 474 and the inner wall of the tank 3, the top block 474 is made of rubber.

[0029] To ensure precise contact between the pusher 48 and the support 2, the pusher 48 includes a cylinder 481 and a screw 482. The cylinder 481 is symmetrically arranged at the lower end of the fixed plate 45, and the screw 482 is threaded into the cylinder 481. A positioning cylinder 5 is fixed on one side of the support 2 corresponding to the position of the screw 482. The inner diameter of the positioning cylinder 5 is adapted to the outer diameter of the screw 482. The extension length of the screw 482 can be adjusted according to the position of the tank 3 on the support 2, so that the screw 482 is accurately inserted into the positioning cylinder 5, and then the support 2 is pushed to move under the extension of the hydraulic telescopic rod 44.

[0030] The input end of the hydraulic telescopic rod 44 is connected to the output end of the external hydraulic pump through a pipeline, and the input end of the external hydraulic pump is connected to the hydraulic oil tank through a pipeline. The output end of the external control system is electrically connected to the input ends of the external hydraulic pump and the electric telescopic rod 472, respectively, thereby controlling the movement of the hydraulic telescopic rod 44 and the electric telescopic rod 472 in the two positioning components 4.

[0031] In use: The two tanks 3 to be welded are placed on the two support seats 2 by the lifting mechanism. Then, the hydraulic telescopic rod 44 is extended to insert the center rod 46 and the anti-displacement mechanism 47 into the inner circle of the tank 3. According to the length of one end of the tank 3 that exceeds the support seat 2, the extension length of the screw 482 is adjusted so that after the center rod 46 is inserted into the tank 3 to the appropriate position, the screw 482 is inserted into the positioning cylinder 5 and contacts the bottom of the positioning cylinder 5. At this time, the electric telescopic rod 472 is energized and extended, and the top block 474 is pressed tightly against the inner wall of the tank 3 to fix the position of the tank 3. Then, the hydraulic telescopic rod 44 is extended again. At this time, the screw 482 pushes the support seat 2 to move, driving the two tanks 3 to connect until the welding surfaces are aligned. During the entire movement, the tanks 3 are fixed by the anti-displacement mechanism 47, so the tanks 3 will not be displaced relative to the support seat 2.

[0032] This invention can ensure that the tank 3 will not shift relative to each other during the movement and welding process of large tanks, thus guaranteeing welding quality and greatly improving ease of use and making it convenient for workers to operate and use.

[0033] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model 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 utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A butt welding positioning device for a can body, characterized by: include: Slide rails (1), two in number, are set parallel to each other on the ground; Support base (2) is slidably connected to the upper end of two slide rails (1). There are two support bases (2). The upper surface of the support base (2) is provided with an arc groove that matches the outer circle of the tank body (3) to be welded, for supporting the tank body (3). The positioning component (4) is symmetrically arranged on both sides of the slide rail (1) to push the support seat (2) to move so that the tank (3) located on the two support seats (2) docks. The positioning component (4) includes a fixed seat (41), a hydraulic telescopic rod (44), a fixed plate (45), a center rod (46), an anti-displacement mechanism (47), and a pusher (48). The fixed base (41) is fixed on the ground. The hydraulic telescopic rod (44) is set on one side of the fixed base (41). The telescopic end of the hydraulic telescopic rod (44) is connected to the fixed plate (45). A central rod (46) is set on one side of the fixed plate (45). The central rod (46) coincides with the central axis of the tank (3). The anti-displacement mechanism (47) is set on the outer side of the central rod (46) to press the inner wall of the tank (3) tightly and prevent the tank (3) from shifting during movement and welding. The pusher (48) is set at the lower end of the fixed plate (45) and corresponds to the position of the support base (2).

2. The tank body butt welding positioning device according to claim 1, characterized in that: The anti-displacement mechanism (47) consists of at least two sets and is evenly distributed along the length of the central rod (46). Each set of anti-displacement mechanism (47) includes three mounting blocks (471). The three mounting blocks (471) are evenly distributed around the central axis of the central rod (46). An electric telescopic rod (472) is fixed on the mounting block (471). The telescopic end of the electric telescopic rod (472) is connected to a fixed plate (473). A top block (474) is fixed on the fixed plate (473).

3. The tank body welding positioning device according to claim 2, characterized in that: The upper end of the top block (474) is machined with an arc-shaped structure that matches the inner surface of the tank body (3).

4. The tank body butt welding positioning device according to claim 2, characterized in that: The top block (474) is made of rubber.

5. A tank body butt welding positioning device according to claim 1, characterized in that: The pusher (48) includes a cylinder (481) and a screw (482). The cylinder (481) is symmetrically arranged at the lower end of the fixed plate (45). The screw (482) is threadedly connected inside the cylinder (481). A positioning cylinder (5) is fixed on one side of the support base (2) corresponding to the position of the screw (482). The inner hole size of the positioning cylinder (5) is adapted to the outer circle size of the screw (482).

6. A tank body butt welding positioning device according to claim 1, characterized in that: The fixing seat (41) has an L-shaped structure, and the lower end of the fixing seat (41) is connected to the ground by a ground bolt (42).

7. A tank body butt welding positioning device according to claim 1 or 6, characterized in that: The fixing seat (41) is provided with reinforcing ribs (43).

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