A mobile device for finishing welding of inner wall of stainless steel pipe

By designing a stainless steel pipe welding device that supports, moves, and clamps rotating components, the problem of steel pipes being unable to rotate and move in existing technologies has been solved, thus improving welding efficiency and stability.

CN224322629UActive Publication Date: 2026-06-05SHANDONG YIFAN METAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG YIFAN METAL TECH CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-05

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  • Figure CN224322629U_ABST
    Figure CN224322629U_ABST
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Abstract

The utility model relates to stainless steel pipe processing technical field, and disclose a kind of mobile device for stainless steel pipe inner wall finish machining welding, including base, the top of base is equipped with guide rail, the top of base is slidably connected with support seat by guide rail both ends, the top of support seat is provided with lifting assembly, lifting assembly includes mounting plate, fixed block, lifting rod, double-shaft motor, screw, movable plate and connecting rod, the top of support seat is provided with mounting plate, the both ends of mounting plate are provided with fixed block, the outside of fixed block is provided with several lifting rods. The mobile device for stainless steel pipe inner wall finish machining welding, by being provided with clamping rotating assembly, can clamp and rotate steel pipe after steel pipe, personnel is convenient to weld at different positions of steel pipe, by being provided with lifting assembly, can be lifted in the bottom of steel pipe, can improve the clamping stability of steel pipe, by being provided with moving assembly, the position of steel pipe can be moved.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe processing technology, specifically a mobile device for precision welding of the inner wall of stainless steel pipes. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. In addition, it is lighter in weight while maintaining the same bending and torsional strength, so it is also widely used in the manufacture of mechanical parts and engineering structures. Stainless steel pipes can be divided into two main categories according to their production methods: seamless pipes and welded pipes. Welded pipes require welding treatment on the raw materials of the pipe body.

[0003] When welding raw materials for pipes, clamps are needed to fix the pipes. However, conventional pipe clamps cannot rotate the pipes after clamping them, making it impossible to weld at different positions on the pipes. Although some pipe clamps have a rotation function, they cannot move the horizontal position of the pipes, requiring manual movement of the pipes, which reduces processing efficiency. Therefore, a moving device for precision welding of the inner wall of stainless steel pipes is proposed to solve the existing problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mobile device for precision welding of the inner wall of stainless steel pipes. It has the advantages of being able to clamp and rotate the steel pipe, facilitating welding at different positions on the pipe, and automatically moving the horizontal position of the pipe to improve work efficiency, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a mobile device for precision welding of the inner wall of stainless steel pipe, including a base, a guide rail on the top of the base, support seats slidably connected to the top two ends of the base through the guide rail, and a lifting component on the top of the support seat.

[0006] The lifting assembly includes a mounting plate, fixing blocks, lifting rods, a dual-axis motor, screws, a movable plate, and a connecting rod. The mounting plate is located on top of the support base. Fixing blocks are located at both ends of the mounting plate. Several lifting rods are located on the outer side of the fixing blocks. A dual-axis motor is located inside the mounting plate. Screws are located on both ends of the output shaft of the dual-axis motor. A movable plate is located on the surface of the screws. A connecting rod is located between the outer side of the movable plate and the lifting rod.

[0007] Preferably, the outer side of the fixing block is fixedly connected to one end of the mounting plate, and one end of the lifting rod is rotatably connected to the outer side of the fixing block.

[0008] Preferably, the outer side of the dual-axis motor is fixedly connected to the inner wall of the mounting plate, one end of the screw is fixedly connected to the output shaft of the dual-axis motor, the inner wall of the movable plate is threadedly connected to the outer side of the screw, one end of the connecting rod is rotatably connected to the outer side of the movable plate, and the other end of the connecting rod is rotatably connected to the outer side of the lifting rod.

[0009] Preferably, a movable component is provided on one side of the support base. The movable component includes a fixed rod, a disc, and a transmission wheel. One end of the fixed rod is fixedly connected to the outside of the fixed block, the outside of the disc is fixedly connected to the other end of the fixed rod, and one end of the transmission wheel is fixedly connected to the outside of the disc.

[0010] Preferably, the moving component includes a drive motor, a second transmission wheel, and a transmission belt. The bottom end of the drive motor is fixedly connected to the inner wall of the support base, one end of the second transmission wheel is fixedly connected to the output shaft of the drive motor, and the transmission belt is sleeved on the surfaces of the second transmission wheel and the first transmission wheel.

[0011] Preferably, a bracket is fixedly connected to the top of the base, and a clamping and rotating assembly is provided inside the bracket. The clamping and rotating assembly includes a fixed disk, a rotating disk, a fixed plate, an electric push rod, and a clamping plate. The outer side of the fixed disk is fixedly connected to the outer side of the bracket, and the outer side of the rotating disk is rotatably connected to the inner wall of the fixed disk. There are two fixed plates, one end of which is fixedly connected to the outer side of the rotating disk, one end of the electric push rod is fixedly connected to the outer side of the fixed plate, and the outer side of the clamping plate is fixedly connected to the output shaft of the electric push rod.

[0012] Preferably, the clamping and rotating assembly further includes a ring rack, a rotary motor, and a gear. The inner wall of the ring rack is fixedly connected to the outer side of the rotating disk, one end of the rotary motor is fixedly connected to the outer side of the fixed disk, and the outer side of the gear is fixedly connected to the output shaft of the rotary motor. The gear meshes with the ring rack.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This moving device for precision welding of the inner wall of stainless steel pipe is equipped with a clamping and rotating assembly. It can clamp the steel pipe and rotate it, making it convenient for personnel to weld at different positions on the steel pipe. By starting the electric push rod, the clamping plate can be moved toward the steel pipe to clamp and fix the steel pipe. After fixing, the rotating motor can be started to drive the gear to rotate. In conjunction with the ring rack, the rotating disk and the steel pipe can be rotated.

[0015] 2. The moving device for precision welding of the inner wall of the stainless steel pipe is equipped with a lifting component that can lift the steel pipe to the bottom, thereby improving the clamping stability of the steel pipe. By activating the fixed block, the screws at both ends are rotated, which in turn drives the movable plate to move horizontally. This can drive multiple connecting rods to push multiple lifting rods, causing the multiple lifting rods to extend outward and lift the steel pipe to the bottom.

[0016] 3. The moving device for precision welding of the inner wall of the stainless steel pipe is equipped with a moving component, which can move the position of the steel pipe. When the position of the steel pipe needs to be adjusted, first release the clamping plate from the steel pipe, then start the drive motor to drive the second transmission wheel to rotate. In conjunction with the transmission belt, the first transmission wheel, the disc, and the fixed rod, the lifting component can be driven to rotate, so that multiple lifting rods push the steel pipe to move horizontally, thereby adjusting the horizontal position of the steel pipe. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a moving device for precision welding of the inner wall of a stainless steel pipe provided by this utility model;

[0018] Figure 2 A schematic diagram of the drive mechanism and lifting component structure of a moving device for precision welding of the inner wall of a stainless steel pipe provided by this utility model;

[0019] Figure 3 A schematic diagram of the lifting component structure of a moving device for precision welding of the inner wall of a stainless steel pipe provided by this utility model;

[0020] Figure 4 A schematic diagram of the clamping and rotating assembly structure of a moving device for precision welding of the inner wall of a stainless steel pipe provided by this utility model.

[0021] In the diagram: 1. Base; 2. Guide rail; 3. Support base; 4. Lifting assembly; 401. Mounting plate; 402. Fixing block; 403. Lifting rod; 404. Dual-axis motor; 405. Screw; 406. Movable plate; 407. Connecting rod; 5. Drive mechanism; 501. Fixing rod; 502. Disc; 503. Transmission wheel one; 504. Drive motor; 505. Transmission wheel two; 506. Transmission belt; 6. Bracket; 7. Clamping and rotating assembly; 701. Fixing disc; 702. Rotating disc; 703. Fixing plate; 704. Electric push rod; 705. Clamping plate; 706. Ring rack; 707. Rotary motor; 708. Gear. 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. 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.

[0023] Please see Figures 1 to 3 A mobile device for precision welding of the inner wall of a stainless steel pipe includes a base 1. A guide rail 2 is provided on the top of the base 1. Support seats 3 are slidably connected to both ends of the top of the base 1 through the guide rail 2. A lifting assembly 4 is provided on the top of the support seat 3. The lifting assembly 4 includes a mounting plate 401, a fixing block 402, a lifting rod 403, a dual-axis motor 404, a screw 405, a movable plate 406, and a connecting rod 407. The mounting plate 401 is located on the top of the support seat 3. Fixing blocks 402 are provided at both ends of the mounting plate 401. Several lifting rods 403 are provided on the outer side of the fixing blocks 402. The dual-axis motor 404 is located inside the mounting plate 401. Screws 405 are provided on both output shafts of the dual-axis motor 404. Movable plates 406 are provided on the surface of the screws 405. A connecting rod 407 is provided between the outer side of the movable plate 406 and the lifting rod 403.

[0024] Please see Figures 1 to 3 The outer side of the fixing block 402 is fixedly connected to one end of the mounting plate 401, one end of the lifting rod 403 is rotatably connected to the outer side of the fixing block 402, the outer side of the dual-axis motor 404 is fixedly connected to the inner wall of the mounting plate 401, one end of the screw 405 is fixedly connected to the output shaft of the dual-axis motor 404, the inner wall of the movable plate 406 is threadedly connected to the outer side of the screw 405, one end of the connecting rod 407 is rotatably connected to the outer side of the movable plate 406, and the other end of the connecting rod 407 is rotatably connected to the outer side of the lifting rod 403.

[0025] The lifting component 4 can be used to lift the steel pipe at the bottom, which can improve the stability of the steel pipe clamping. By activating the fixing block 402, the screws 405 at both ends are rotated, and the movable plate 406 is moved horizontally. This can drive multiple connecting rods 407 to push multiple lifting rods 403, so that the multiple lifting rods 403 extend outward and lift the steel pipe at the bottom.

[0026] Please see Figures 1-2A movable component 5 is provided on one side of the support base 3. The movable component 5 includes a fixed rod 501, a disc 502, a first transmission wheel 503, a drive motor 504, a second transmission wheel 505, and a transmission belt 506. One end of the fixed rod 501 is fixedly connected to the outside of the fixed block 402. The outside of the disc 502 is fixedly connected to the other end of the fixed rod 501. One end of the first transmission wheel 503 is fixedly connected to the outside of the disc 502. The bottom end of the drive motor 504 is fixedly connected to the inner wall of the support base 3. One end of the second transmission wheel 505 is fixedly connected to the output shaft of the drive motor 504. The transmission belt 506 is sleeved on the surface of the second transmission wheel 505 and the first transmission wheel 503.

[0027] The moving component 5 allows the steel pipe to be moved. When the position of the steel pipe needs to be adjusted, firstly, the clamping plate 705 is released from the steel pipe. Then, the drive motor 504 is started to drive the transmission wheel 2 505 to rotate. In conjunction with the transmission belt 506, transmission wheel 1 503, disc 502, and fixed rod 501, the lifting component 4 can be driven to rotate, causing multiple lifting rods 403 to push the steel pipe horizontally, thereby adjusting the horizontal position of the steel pipe.

[0028] Please see Figure 1 and Figure 4 A bracket 6 is fixedly connected to the top of the base 1. A clamping and rotating assembly 7 is installed inside the bracket 6. The clamping and rotating assembly 7 includes a fixed disk 701, a rotating disk 702, a fixed plate 703, an electric push rod 704, a clamping plate 705, a ring rack 706, a rotary motor 707, and a gear 708. The outer side of the fixed disk 701 is fixedly connected to the outer side of the bracket 6, and the outer side of the rotating disk 702 is rotatably connected to the inner wall of the fixed disk 701. There are two fixed plates 703. One end of the electric push rod 704 is fixedly connected to the outside of the rotating disk 702, one end of the electric push rod 704 is fixedly connected to the outside of the fixed plate 703, the outside of the clamping plate 705 is fixedly connected to the output shaft of the electric push rod 704, the inner wall of the ring rack 706 is fixedly connected to the outside of the rotating disk 702, one end of the rotary motor 707 is fixedly connected to the outside of the fixed disk 701, the outside of the gear 708 is fixedly connected to the output shaft of the rotary motor 707, and the gear 708 meshes with the ring rack 706;

[0029] The clamping and rotating assembly 7 is provided to clamp the steel pipe and rotate it, which makes it convenient for personnel to weld different positions of the steel pipe. By starting the electric push rod 704, the clamping plate 705 is moved toward the steel pipe, which can clamp and fix the steel pipe. After fixing, the rotating motor 707 is started to drive the gear 708 to rotate. In conjunction with the ring rack 706, the rotating disk 702 and the steel pipe can be rotated.

[0030] In this invention, the working principle of the device is as follows:

[0031] In use, the steel pipe is inserted into the bracket 6, so that the steel pipe is positioned between the two clamping plates 705. By starting the electric push rod 704, the clamping plates 705 are moved toward the steel pipe, which can clamp and fix the steel pipe. After fixing, the rotary motor 707 is started to drive the gear 708 to rotate. In conjunction with the ring rack 706, the rotating disk 702 can be rotated, which in turn drives the fixing plate 703 and the clamping plate 705 to rotate, thus rotating the steel pipe. This makes it convenient for personnel to weld at different positions on the steel pipe.

[0032] After the steel pipe is fixed, the starting fixing block 402 drives the screws 405 at both ends to rotate, which in turn drives the movable plate 406 to move horizontally. This drives multiple connecting rods 407 to push multiple lifting rods 403, causing the lifting rods 403 to extend outward and support the bottom of the steel pipe. When it is necessary to adjust the position of the steel pipe, first release the clamping plate 705 from the steel pipe, then start the drive motor 504 to drive the transmission wheel 2 505 to rotate. In conjunction with the transmission belt 506, the transmission wheel 1 503 can be driven to rotate, which in turn drives the disc 502 and the fixing rod 501 to rotate. This, in turn, drives the fixing block 402 and the mounting plate 401 to rotate, causing the multiple lifting rods 403 to push the steel pipe to move horizontally, thus adjusting the horizontal position of the steel pipe.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 mobile device for precision welding of the inner wall of a stainless steel pipe, comprising a base (1), characterized in that, The top of the base (1) is provided with a guide rail (2), and the two ends of the top of the base (1) are slidably connected to a support seat (3) through the guide rail (2). The top of the support seat (3) is provided with a lifting component (4). The lifting assembly (4) includes a mounting plate (401), a fixing block (402), a lifting rod (403), a dual-axis motor (404), a screw (405), a movable plate (406), and a connecting rod (407). The mounting plate (401) is located on the top of the support base (3). Fixing blocks (402) are provided at both ends of the mounting plate (401). Several lifting rods (403) are provided on the outer side of the fixing blocks (402). A dual-axis motor (404) is provided inside the mounting plate (401). Screws (405) are provided on both ends of the output shaft of the dual-axis motor (404). A movable plate (406) is provided on the surface of the screw (405). A connecting rod (407) is provided between the outer side of the movable plate (406) and the lifting rod (403).

2. The moving device for precision welding of the inner wall of a stainless steel pipe according to claim 1, characterized in that: The outer side of the fixing block (402) is fixedly connected to one end of the mounting plate (401), and one end of the lifting rod (403) is rotatably connected to the outer side of the fixing block (402).

3. The moving device for precision welding of the inner wall of a stainless steel pipe according to claim 1, characterized in that: The outer side of the dual-axis motor (404) is fixedly connected to the inner wall of the mounting plate (401). One end of the screw (405) is fixedly connected to the output shaft of the dual-axis motor (404). The inner wall of the movable plate (406) is threadedly connected to the outer side of the screw (405). One end of the connecting rod (407) is rotatably connected to the outer side of the movable plate (406), and the other end of the connecting rod (407) is rotatably connected to the outer side of the lifting rod (403).

4. The moving device for precision welding of the inner wall of a stainless steel pipe according to claim 1, characterized in that: A movable component (5) is provided on one side of the support base (3). The movable component (5) includes a fixed rod (501), a disc (502) and a transmission wheel (503). One end of the fixed rod (501) is fixedly connected to the outside of the fixed block (402). The outside of the disc (502) is fixedly connected to the other end of the fixed rod (501). One end of the transmission wheel (503) is fixedly connected to the outside of the disc (502).

5. The moving device for precision welding of the inner wall of a stainless steel pipe according to claim 4, characterized in that: The moving component (5) includes a drive motor (504), a second transmission wheel (505), and a transmission belt (506). The bottom end of the drive motor (504) is fixedly connected to the inner wall of the support base (3). One end of the second transmission wheel (505) is fixedly connected to the output shaft of the drive motor (504). The transmission belt (506) is sleeved on the surface of the second transmission wheel (505) and the first transmission wheel (503).

6. The moving device for precision welding of the inner wall of a stainless steel pipe according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a bracket (6), and the bracket (6) is provided with a clamping and rotating assembly (7). The clamping and rotating assembly (7) includes a fixed plate (701), a rotating plate (702), a fixed plate (703), an electric push rod (704), and a clamping plate (705). The outer side of the fixed plate (701) is fixedly connected to the outer side of the bracket (6), and the outer side of the rotating plate (702) is rotatably connected to the inner wall of the fixed plate (701). There are two fixed plates (703). One end of the fixed plate (703) is fixedly connected to the outer side of the rotating plate (702), and one end of the electric push rod (704) is fixedly connected to the outer side of the fixed plate (703). The outer side of the clamping plate (705) is fixedly connected to the output shaft of the electric push rod (704).

7. A moving device for precision welding of the inner wall of a stainless steel pipe according to claim 6, characterized in that: The clamping and rotating assembly (7) further includes an annular rack (706), a rotary motor (707), and a gear (708). The inner wall of the annular rack (706) is fixedly connected to the outer side of the rotating disk (702). One end of the rotary motor (707) is fixedly connected to the outer side of the fixed disk (701). The outer side of the gear (708) is fixedly connected to the output shaft of the rotary motor (707). The gear (708) meshes with the annular rack (706).