Automatic positioning pump body welding device

Abstract

The utility model relates to the technical field of pump body welding, and discloses an automatic positioning pump body welding device which comprises a bottom plate, a supporting seat and a first pressing plate, the bottom face of the supporting seat is fixedly connected with the upper surface of the bottom plate, the bottom face of the first pressing plate is fixedly connected with the upper surface of the supporting seat, and the bottom face of the bottom plate is fixedly connected with an air cylinder. The telescopic end of the air cylinder is fixedly connected with a pull rod, the outer surface of the pull rod is slidably connected with a taper sleeve, and the outer surface of the taper sleeve is slidably connected with a plurality of expansion blocks. The pull rod can move to drive the taper sleeve to move upwards, the contact limiting effect between the taper sleeve and the expansion block can be relieved in the upward moving process of the taper sleeve, then the expansion block can contract inwards under the action of the annular spring, a pump shell with an ovality difference value can be conveniently placed outside the expansion block, and therefore the pump shell can be conveniently placed in the expansion block. And when the expansion block resets, the pump shell is expanded to be round, so that the subsequent welding work can be facilitated, and meanwhile, the pump shell can be conveniently assembled with the top cover.

Description

Technical Field

[0001] This utility model relates to the field of pump body welding technology, specifically to an automatic positioning pump body welding device. Background Technology

[0002] Pump body welding refers to connecting the various components of the pump body together by welding to form a complete pump body structure. Welding is a commonly used connection method that can provide high-strength connections and is suitable for connecting various materials. In the process of pump body welding, factors such as the selection of welding materials, the control of welding process parameters, and the quality inspection after welding need to be considered.

[0003] The utility model patent application CN217513257U discloses a pump body end cover welding device, including a base frame, a support structure, a clamping and positioning structure, a support base, and a welding assembly. The support structure is disposed on the base frame and has a mounting space for placing the pump body. The support structure supports the pump body and drives the pump body to rotate. The clamping and positioning structure is disposed on the base frame and is used to clamp the pump body located in the mounting space and rotates with the pump body. The support base is slidably disposed on the base frame and is located on the side of the support structure away from the clamping and positioning structure. The support base is provided with a placement groove for placing the pump body end cover. The welding assembly is disposed on the base frame and is used to weld the pump body and the pump body end cover.

[0004] The pump body end cover welding device provided by this utility model, which adopts the above technical solution, aims to solve the problems of poor welding quality and low welding efficiency of pump body end cover when using existing welding tooling to weld pump body end cover. However, in the process of welding the pump casing and top cover of stainless steel clean water centrifugal pump, since the pump casing is made of plate rolled and welded, there is a certain degree of ellipticity difference. When it is assembled and welded with the stretched top cover, it is difficult to put the top cover into the casing, making assembly difficult, time-consuming, and with low production efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic positioning pump body welding device, which has the advantage of being able to quickly restore the ellipticity of the pump casing during the welding process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic positioning pump body welding device, comprising a base plate, a support base, and a first pressure plate. The bottom surface of the support base is fixedly connected to the upper surface of the base plate, and the bottom surface of the first pressure plate is fixedly connected to the upper surface of the support base. A cylinder is fixedly connected to the bottom surface of the base plate, and a pull rod is fixedly connected to the telescopic end of the cylinder. A conical sleeve is slidably connected to the outer surface of the pull rod, and several bulging blocks are slidably connected to the outer surface of the conical sleeve. The outer surface of each bulging block is slidably connected to the inner wall of the first pressure plate. A ring spring is provided above the base plate, and the outer surface of the ring spring is in contact with the inner wall of the bulging block. Several guide posts are fixedly connected to the upper surface of the first pressure plate, and the outer surface of each guide post is slidably connected to the inner wall of the bulging block. A second pressure plate is fixedly connected to the upper surfaces of the four guide posts, and the bottom surface of the second pressure plate is in contact with the upper surface of the bulging block.

[0007] Preferably, the bottom surface of the base plate is fixedly connected to two side plates, and the bottom surface of each side plate is fixedly connected to a base.

[0008] Preferably, a guide rail is fixedly connected to the upper surface of the base plate, and a welding assembly is slidably connected to the inner wall of the guide rail.

[0009] Preferably, the inner wall of the base plate is slidably connected with a plurality of adjusting screws, and the bottom end of each adjusting screw is fixedly connected with an anti-detachment head.

[0010] Preferably, each of the adjusting screws has a first nut threaded onto its outer surface, and the bottom surface of each first nut is in contact with the upper surface of the base plate.

[0011] Preferably, the top ends of the three adjusting screws are fixedly connected to a limiting plate, and the inner wall of the limiting plate is slidably connected to the outer surface of the support base.

[0012] Preferably, the outer surface of the pull rod is threaded with a second nut, and the bottom surface of the second nut contacts the upper surface of the tapered sleeve.

[0013] Compared with the prior art, the present invention provides an automatic positioning pump body welding device, which has the following beneficial effects:

[0014] This self-positioning, rapid, and self-locking pump body welding device, equipped with a cylinder, pull rod, conical sleeve, expansion block, first pressure plate, second pressure plate, and ring spring, allows the cylinder to extend its telescopic end after opening. This extension pushes the pull rod upward, which in turn moves the conical sleeve upward. As the conical sleeve moves upward, it releases its contact limit with the expansion block, allowing the expansion block to retract inward under the action of the ring spring. This facilitates the placement of the pump casing with ellipticity differences onto the outside of the expansion block, and the expansion block rounds the pump casing upon resetting. This simplifies subsequent welding work and assembly with the top cover, improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the base plate of this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the base plate of this utility model;

[0017] Figure 3 This is a three-dimensional cross-sectional structural diagram of the support base of this utility model;

[0018] Figure 4 This is a cross-sectional three-dimensional structural schematic diagram of the second pressure plate of this utility model.

[0019] In the diagram: 1. Base plate; 2. Support seat; 3. Side plate; 4. Base; 5. Guide rail; 6. Welding assembly; 7. Adjusting screw; 8. Anti-detachment head; 9. First nut; 10. Cylinder; 11. Limiting plate; 12. Conical sleeve; 13. Expanded block; 14. Pull rod; 15. Second nut; 16. First pressure plate; 17. Ring spring; 18. Second pressure plate; 19. Guide column. Detailed Implementation

[0020] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an automatic positioning pump body welding device of this utility model.

[0021] Please see Figure 1-4 This utility model discloses an automatic positioning pump body welding device, comprising a base plate 1, a support base 2, and a first pressure plate 16. The bottom surface of the support base 2 is fixedly connected to the upper surface of the base plate 1. Two side plates 3 are fixedly connected to the bottom surface of the base plate 1, and a base 4 is fixedly connected to the bottom surface of each side plate 3. By setting the side plates 3 and the base 4, the device can be conveniently provided with a good support effect, enabling it to be used stably.

[0022] The bottom surface of the first pressure plate 16 is fixedly connected to the upper surface of the support base 2. The bottom surface of the base plate 1 is fixedly connected to the cylinder 10, and the upper surface of the base plate 1 is fixedly connected to the guide rail 5. The inner wall of the guide rail 5 is slidably connected to the welding component 6. By setting the guide rail 5 and the welding component 6, the pump casing can be easily welded, and the welding work can be completed quickly.

[0023] A pull rod 14 is fixedly connected to the telescopic end of the cylinder 10. A cone sleeve 12 is slidably connected to the outer surface of the pull rod 14. Several bulging blocks 13 are slidably connected to the outer surface of the cone sleeve 12. The outer surface of each bulging block 13 is slidably connected to the inner wall of the first pressure plate 16. Several adjusting screws 7 are slidably connected to the inner wall of the base plate 1. An anti-detachment head 8 is fixedly connected to the bottom end of each adjusting screw 7. By setting the adjusting screws 7 and the anti-detachment head 8, it is convenient to provide support for the limiting plate 11 and to support the pump casing.

[0024] A ring spring 17 is provided above the base plate 1. The outer surface of the ring spring 17 is in contact with the inner wall of the bulging block 13. Each adjusting screw 7 is threaded with a first nut 9 on its outer surface. The bottom surface of each first nut 9 is in contact with the upper surface of the base plate 1. By setting the first nut 9, the adjusting screw 7 can be firmly fixed to prevent it from falling off during use. At the same time, it is also convenient to adjust the height of the adjusting screw 7.

[0025] Several guide posts 19 are fixedly connected to the upper surface of the first pressure plate 16. The outer surface of each guide post 19 is slidably connected to the inner wall of the bulging block 13. The top ends of the three adjusting screws 7 are fixedly connected to a limiting plate 11. The inner wall of the limiting plate 11 is slidably connected to the outer surface of the support base 2. By setting the limiting plate 11, a supporting effect can be provided when the pump casing is in operation, so that it can be used stably.

[0026] The upper surfaces of the four guide posts 19 are fixedly connected to the second pressure plate 18. The bottom surface of the second pressure plate 18 is in contact with the upper surface of the bulging block 13. The outer surface of the pull rod 14 is threaded with the second nut 15. The bottom surface of the second nut 15 is in contact with the upper surface of the cone sleeve 12. By setting the second nut 15, the cone sleeve 12 can be squeezed firmly to avoid shaking during use, and it can also be easily disassembled.

[0027] The working principle of this utility model is as follows: First, the operator connects the power supply to the cylinder 10 of the device to ensure a stable power supply and prevent power outages during use. Then, the operator fixes the device in the working position and activates the cylinder 10. After activation, the telescopic end of the cylinder 10 extends, pushing the pull rod 14 upwards. Simultaneously, the movement of the pull rod 14 causes the cone sleeve 12 to move upwards. During this upward movement, the cone sleeve 12 releases its contact with the expanded block 13, allowing the expanded block 13 to contract inwards under the action of the annular spring 17, thus changing the outer diameter of the expanded block 13. The process begins with the worker placing the pump casing with the ellipticity difference onto the outside of the expansion block 13. The bottom of the pump casing also contacts and is supported by the limiting plate 11. Then, the control cylinder 10 retracts and moves, allowing the pump casing to be rounded by squeezing the expansion block 13 under the action of the cone sleeve 12. The worker can then perform welding work using the welding component 6 on the surface of the base plate 1. The guide rail 5 facilitates the movement of the welding component 6, enabling the rapid completion of the welding work between the pump casing and the top cover. Afterward, the expansion block 13 is retracted again by the control cylinder 10, and finally, the welded pump casing can be easily removed, thus quickly completing the welding work.

[0028] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automatic positioning pump body welding device, comprising a base plate (1), a support base (2), and a first pressure plate (16), characterized in that: The bottom surface of the support base (2) is fixedly connected to the upper surface of the base plate (1), the bottom surface of the first pressure plate (16) is fixedly connected to the upper surface of the support base (2), a cylinder (10) is fixedly connected to the bottom surface of the base plate (1), a pull rod (14) is fixedly connected to the telescopic end of the cylinder (10), a conical sleeve (12) is slidably connected to the outer surface of the pull rod (14), and a plurality of bulging blocks (13) are slidably connected to the outer surface of the conical sleeve (12), and the outer surface of each bulging block (13) is connected to the first pressure plate (16). The inner wall is slidably connected, and an annular spring (17) is provided above the bottom plate (1). The outer surface of the annular spring (17) is in contact with the inner wall of the bulging block (13). Several guide posts (19) are fixedly connected to the upper surface of the first pressure plate (16). The outer surface of each guide post (19) is slidably connected to the inner wall of the bulging block (13). The upper surfaces of the four guide posts (19) are fixedly connected to a second pressure plate (18). The bottom surface of the second pressure plate (18) is in contact with the upper surface of the bulging block (13).

2. The automatic positioning pump body welding device according to claim 1, characterized in that: The bottom surface of the base plate (1) is fixedly connected to two side plates (3), and the bottom surface of each side plate (3) is fixedly connected to a base (4).

3. The automatic positioning pump body welding device according to claim 1, characterized in that: The upper surface of the base plate (1) is fixedly connected to a guide rail (5), and the inner wall of the guide rail (5) is slidably connected to a welding assembly (6).

4. The automatic positioning pump body welding device according to claim 1, characterized in that: The inner wall of the base plate (1) is slidably connected with a number of adjusting screws (7), and the bottom end of each adjusting screw (7) is fixedly connected with an anti-detachment head (8).

5. The automatic positioning pump body welding device according to claim 4, characterized in that: Each of the adjusting screws (7) has a first nut (9) threaded onto its outer surface, and the bottom surface of each first nut (9) is in contact with the upper surface of the base plate (1).

6. The automatic positioning pump body welding device according to claim 4, characterized in that: The top ends of the three adjusting screws (7) are fixedly connected to a limiting plate (11), and the inner wall of the limiting plate (11) is slidably connected to the outer surface of the support base (2).

7. The automatic positioning pump body welding device according to claim 1, characterized in that: The outer surface of the pull rod (14) is threaded with a second nut (15), and the bottom surface of the second nut (15) is in contact with the upper surface of the tapered sleeve (12).

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