Liquefied gas bottle welding equipment and method

Through innovative design of liquefied gas cylinder welding equipment, components such as rotating rods, limit blocks, and electric telescopic rods are used to achieve automatic removal of welding slag and precise alignment of welding positions, solving the problem of incomplete slag removal and improving welding efficiency and accuracy.

CN121339831APending Publication Date: 2026-01-16青岛益鼎立容器有限公司
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Patent Information

Application Number
CN202511757120.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Existing liquefied gas cylinder welding equipment suffers from incomplete slag removal during the welding process, resulting in low processing efficiency.

Method used

A welding device for liquefied gas cylinders was designed, which adopts a combination of a rotating rod, a limiting block, a connecting block and a T-shaped threaded rod. Through the cooperation of an electric telescopic rod and a striking ball, the welding slag is automatically knocked off. Combined with the setting of a motor, gears and mounting groove, the welding position can be accurately aligned and rotated for welding.

Benefits of technology

It improves welding efficiency, reduces the need for manual slag removal, and enhances welding accuracy and the applicability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses liquefied gas bottle welding equipment and method, and relates to the technical field of liquefied gas bottle welding, the liquefied gas bottle welding equipment comprises supporting legs, a bottom plate is arranged on the top surfaces of the supporting legs, a rotating rod is arranged on the top surface of the bottom plate, one end of the rotating rod is fixedly connected with a limiting block, and the surface of the rotating rod is slidably connected with a connecting block; the interior of the connecting block is in threaded connection with a first T-shaped threaded rod, the surface of the connecting block is fixedly connected with a second electric telescopic rod, and the telescopic end of the second electric telescopic rod is fixedly connected with a mounting plate. According to the design scheme, through arrangement of a rotating rod, a limiting block, a connecting block and a first T-shaped threaded rod, the effect of conveniently knocking off and adjusting welding slag at the welding position is achieved, through arrangement of a second electric telescopic rod, a mounting plate, a spring and a knocking ball, the effect of knocking off the welding slag generated by welding in the welding process is achieved, and the welding quality is improved. And meanwhile, the problem of manual knock-off is reduced, and the welding machining efficiency is further improved.
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Description

Technical Field

[0001] This invention relates to the field of liquefied gas cylinder welding technology, and in particular to a liquefied gas cylinder welding equipment and method. Background Technology

[0002] A liquefied petroleum gas (LPG) tank is a storage tank used to store LPG. When filled with LPG, it operates at very high pressure, and improper operation can potentially cause an explosion; therefore, it is classified as special equipment. The product itself is made of steel and possesses a certain degree of pressure resistance.

[0003] Welding is a process that permanently joins metals or other materials by heating or pressurizing. It is widely used in manufacturing and repair. Welding refers to the atomic bonding between two or more parts made of the same or different materials by local heating or pressurizing.

[0004] The current publication number CN113941822B discloses a welding equipment and welding method for a vehicle liquefied natural gas cylinder, which relates to the field of liquefied gas storage technology. It includes: a main frame, two sets of side frames are fixedly installed on the top two sides of the main frame, two sets of lead screws are rotatably installed below the two sets of side frames, and a hexagonal shaft is rotatably installed above the two sets of side frames.

[0005] To address the lack of controllable supplementary cooling in rotating tanks, existing technology uses a rear hexagonal shaft to drive the rotating sleeve B to rotate. The rotating sleeve B, through a bevel gear, drives a screw propeller to rotate and discharge sand, which is then poured onto the outside of the weld, thus achieving a cooling effect. However, this method still results in the inability to clean the weld slag generated during the welding process, leading to low processing efficiency. Summary of the Invention

[0006] In order to overcome the above-mentioned defects in the prior art, the present invention provides a welding device and method for liquefied gas cylinders.

[0007] The technical solution adopted by this invention to solve its technical problem is: In a first aspect, the present invention provides a liquefied gas cylinder welding device, including a support leg, wherein a base plate is provided on the top surface of the support leg.

[0008] A rotating rod is provided on the top surface of the base plate. A limit block is fixedly connected to one end of the rotating rod. A connecting block is slidably connected to the surface of the rotating rod. A T-shaped threaded rod is threadedly connected to the inside of the connecting block. An electric telescopic rod is fixedly connected to the surface of the connecting block. A mounting plate is fixedly connected to the telescopic end of the electric telescopic rod. A spring is fixedly connected to one side of the mounting plate. A striking ball is fixedly connected to one end of the spring.

[0009] Furthermore, a motor is bolted to the bottom side of the base plate, and a threaded rod is fixedly sleeved at the output end of the motor.

[0010] Furthermore, a guide rod is fixedly connected to the top surface of the base plate, and a movable plate is slidably connected to the surface of the guide rod. The interior of the movable plate is threadedly connected to the surface of the threaded rod.

[0011] Furthermore, a second motor is bolted to the bottom side of the base plate, and a first gear is fixedly sleeved at the output end of the second motor. One side of the first gear is fixedly connected to one end of the rotating rod, and a second gear is meshed with one side of the first gear.

[0012] Furthermore, one side of the second gear is rotatably connected to the top surface of the base plate, and the top surface of the second gear is fixedly connected to a mounting groove.

[0013] Furthermore, an electric telescopic rod is fixedly connected inside the mounting groove, and a fixed shaft is fixedly connected inside the telescopic end of the electric telescopic rod. Connecting frames are rotatably connected to both ends of the fixed shaft, and a clamping groove is fixedly connected to one side of the connecting frame.

[0014] Furthermore, an adjustment frame is fixedly connected to one side of the base plate, a welding machine body is fixedly connected to one side of the adjustment frame, and a welding gun is provided on one side of the welding machine body.

[0015] Furthermore, a sliding frame is slidably connected to the surface of the adjustment frame, and a T-shaped threaded rod is threadedly connected to the inside of the sliding frame. An electric telescopic rod is fixedly connected to one side of the sliding frame, and the telescopic end of the electric telescopic rod is fixedly connected to one side of the welding torch.

[0016] Secondly, the present invention also provides a method for welding liquefied gas cylinders, comprising the following steps: Step 1: First, place the gas cylinder raw material inside the installation slot, and simultaneously control the four electric telescopic rods to extend in sync. At the same time, the anti-slip pad inside the clamping slot will come into contact with the surface of the gas cylinder raw material, thus fixing the gas cylinder raw material. Similarly, place the gas cylinder raw material to be welded on top and clamp it in place.

[0017] Step 2: Control motor 1 to drive the threaded rod to rotate, and at the same time drive the moving plate to connect the inner fixed gas cylinder raw material with the bottom fixed gas cylinder raw material under the guidance of the guide rod.

[0018] Step 3: Push the sliding frame to slide on the surface of the adjusting frame, and at the same time control the electric telescopic rod three to extend, thereby moving the welding gun to one side of the welding area. At the same time, rotate the T-shaped threaded rod two to move inside the sliding frame, and at the same time, the T-shaped threaded rod two contacts one side of the adjusting frame, thereby completing the fixation of the sliding frame. Control the welding gun to weld the raw materials.

[0019] Step 4: Control motor 2 to drive gear 1 to rotate, which in turn drives the mounting slot on one side of gear 2 to rotate, and simultaneously drives the gas cylinder raw material inside the mounting slot to rotate and weld.

[0020] Step 5: Before welding, control the connecting block to move on the surface of the rotating rod, and at the same time control the electric telescopic rod 2 to drive the striking ball to contact the docking area. Simultaneously, rotate the T-shaped threaded rod 1 to contact the surface of the rotating rod. During the rotation of gear 1, the rotating rod is driven to rotate synchronously, and the striking ball at the telescopic end of the electric telescopic rod 2 on the surface is driven to strike the weld slag generated in the weld area, so as to realize the subsequent continuous welding work.

[0021] The beneficial effects of this invention are as follows: The design scheme, through the arrangement of the rotating rod, limiting block, connecting block, and T-shaped threaded rod, facilitates the removal and adjustment of welding slag at the welding position. The arrangement of the electric telescopic rod, mounting plate, spring, and striking ball effectively knocks off the welding slag generated during the welding process, reducing the need for manual removal and further improving welding efficiency. The arrangement of the base plate, motor one, threaded rod, guide rod, and moving plate allows for adjustment of the connection between the liquefied gas cylinder raw materials being welded. The arrangement of motor two, gear one, gear two, and mounting groove achieves… To facilitate uniform welding of liquefied gas cylinder raw materials through rotation, the device utilizes an electric telescopic rod, fixed shaft, connecting frame, clamping groove, and anti-slip pad to secure and hold the raw materials. The anti-slip pad further reduces displacement during rotation, improving welding precision. The adjustable frame, welding machine body, and welding torch enable efficient welding of the liquefied gas cylinder raw materials. The adjustable frame, sliding frame, T-shaped threaded rod, and electric telescopic rod further enhance the device's versatility by allowing for easy adjustment of the welding position. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the adjustment unit of the present invention; Figure 3 This is a three-dimensional structural diagram of the rotating unit of the present invention; Figure 4 This is a three-dimensional structural diagram of the clamping unit of the present invention; Figure 5 This is a three-dimensional structural diagram of the striking unit of the present invention; Figure 6This is a three-dimensional structural diagram of the welding unit of the present invention.

[0024] In the diagram: 1. Support leg; 2. Base plate; 3. Motor 1; 4. Threaded rod; 5. Guide rod; 6. Moving plate; 7. Motor 2; 8. Gear 1; 9. Gear 2; 10. Mounting slot; 11. Electric telescopic rod 1; 12. Fixed shaft; 13. Connecting frame; 14. Clamping slot; 15. Anti-slip pad; 16. Rotating rod; 17. Limiting block; 18. Connecting block; 19. T-shaped threaded rod 1; 20. Electric telescopic rod 2; 21. Mounting plate; 22. Spring; 23. Striking ball; 24. Adjusting frame; 25. Welding machine body; 26. Welding torch; 27. Sliding frame; 28. T-shaped threaded rod 2; 29. ​​Electric telescopic rod 3. Detailed Implementation

[0025] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of the present invention. Example

[0026] Firstly, according to Figure 1-6 As shown, the present invention provides a liquefied gas cylinder welding device, including a support leg 1, a base plate 2 on the top surface of the support leg 1, a rotating rod 16 on the top surface of the base plate 2, a limit block 17 fixedly connected to one end of the rotating rod 16, a connecting block 18 slidably connected to the surface of the rotating rod 16, a T-shaped threaded rod 19 threaded internally connected to the connecting block 18, an electric telescopic rod 20 fixedly connected to the surface of the connecting block 18, a mounting plate 21 fixedly connected to the telescopic end of the electric telescopic rod 20, a spring 22 fixedly connected to one side of the mounting plate 21, and a striking ball 23 fixedly connected to one end of the spring 22.

[0027] In this embodiment, before welding, the connecting block 18 is controlled to move on the surface of the rotating rod 16, while the electric telescopic rod 20 is controlled to drive the striking ball 23 to contact the docking area. At the same time, the T-shaped threaded rod 19 is rotated to contact the surface of the rotating rod 16. During the rotation of the gear 8, the rotating rod 16 is driven to rotate synchronously, and the striking ball 23 at the telescopic end of the electric telescopic rod 20 on the surface is driven to strike the weld slag generated in the weld area, so as to realize the subsequent continuous welding work. Example

[0028] like Figure 1-6As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, a motor 3 is bolted to the bottom side of the base plate 2, a threaded rod 4 is fixedly sleeved at the output end of the motor 3, a guide rod 5 is fixedly connected to the top surface of the base plate 2, a movable plate 6 is slidably connected to the surface of the guide rod 5, the interior of the movable plate 6 is threadedly connected to the surface of the threaded rod 4, a motor 7 is bolted to the bottom side of the base plate 2, a gear 8 is fixedly sleeved at the output end of the motor 7, one side of the gear 8 is fixedly connected to one end of the rotating rod 16, one side of the gear 8 is meshed with a gear 9, one side of the gear 9 is rotatably connected to the top surface of the base plate 2, and a mounting groove 10 is fixedly connected to the top surface of the gear 9.

[0029] In this embodiment, the control motor 3 drives the threaded rod 4 to rotate, and at the same time drives the liquefied gas cylinder raw material on the bottom side of the moving plate 6 to dock with the liquefied gas cylinder raw material under the limit of the guide rod 5. At the same time, the control motor 7 drives the gear 8 to rotate, which in turn drives the mounting groove 10 on the top surface of the gear 9 to rotate, and at the same time drives the liquefied gas cylinder raw material to rotate and perform welding work. Example

[0030] like Figure 1-6 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, an electric telescopic rod 11 is fixedly connected inside the mounting groove 10, a fixed shaft 12 is fixedly connected inside the telescopic end of the electric telescopic rod 11, a connecting frame 13 is rotatably connected to both ends of the fixed shaft 12, a clamping groove 14 is fixedly connected to one side of the connecting frame 13, an adjusting frame 24 is fixedly connected to one side of the base plate 2, a welding machine body 25 is fixedly connected to one side of the adjusting frame 24, a welding torch 26 is provided on one side of the welding machine body 25, a sliding frame 27 is slidably connected to the surface of the adjusting frame 24, a T-shaped threaded rod 28 is threadedly connected inside the sliding frame 27, an electric telescopic rod 29 is fixedly connected to one side of the sliding frame 27, and the telescopic end of the electric telescopic rod 29 is fixedly connected to one side of the welding torch 26.

[0031] In this embodiment, the raw material of the liquefied gas cylinder to be welded is placed inside the mounting groove 10. At the same time, the four electric telescopic rods 11 are controlled to extend synchronously, thereby causing the anti-slip pad 15 on one side of the clamping groove 14 to come into contact with the surface of the liquefied gas cylinder raw material, thus completing the fixation of the liquefied gas cylinder raw material. Meanwhile, the liquefied gas cylinder raw material to be connected is fixed on the bottom side of the moving plate 6. The moving sliding frame 27 drives the welding gun 26 to be adjusted to one side of the welding area on the surface of the adjusting frame 24. Then, the T-shaped threaded rod 28 rotates to come into contact with the surface of the adjusting frame 24, thereby completing the fixation of the sliding frame 27. The electric telescopic rod 29 is controlled to drive the welding gun 26 to extend, thereby performing welding work on the liquefied gas cylinder raw material.

[0032] Secondly, the present invention also provides a method for welding liquefied gas cylinders, comprising the following steps: Step 1: First, place the gas cylinder raw material inside the mounting groove 10, and simultaneously control the four electric telescopic rods 11 to extend synchronously, thereby driving the anti-slip pad 15 inside the clamping groove 14 to contact the surface of the gas cylinder raw material, thus completing the fixation of the gas cylinder raw material. Similarly, place the gas cylinder raw material to be welded on top for clamping and fixing.

[0033] Step 2: Control motor 3 to drive threaded rod 4 to rotate, and at the same time drive moving plate 6 to connect the inner fixed gas cylinder raw material with the bottom fixed gas cylinder raw material under the guidance of guide rod 5.

[0034] Step 3: Push the sliding frame 27 to slide on the surface of the adjusting frame 24, and at the same time control the electric telescopic rod 29 to extend, thereby driving the welding gun 26 to move to one side of the welding area. At the same time, rotate the T-shaped threaded rod 28 to move inside the sliding frame 27, and at the same time, the T-shaped threaded rod 28 contacts one side of the adjusting frame 24, thereby completing the fixation of the sliding frame 27, and controlling the welding gun 26 to weld the raw materials.

[0035] Step 4: Control motor 2 7 to drive gear 1 8 to rotate, and at the same time drive the mounting groove 10 on one side of gear 2 9 to rotate, and at the same time drive the gas cylinder raw material inside the mounting groove 10 to rotate and weld.

[0036] Step 5: Before welding, control the connecting block 18 to move on the surface of the rotating rod 16, and simultaneously control the electric telescopic rod 20 to drive the striking ball 23 to contact the mating area. At the same time, rotate the T-shaped threaded rod 19 to contact the surface of the rotating rod 16. During the rotation of the gear 8, the rotating rod 16 is driven to rotate synchronously, and the striking ball 23 at the telescopic end of the electric telescopic rod 20 on the surface is driven to strike the weld slag generated in the weld area, so as to realize the subsequent continuous welding work.

[0037] In use, the raw material of the liquefied gas cylinder to be welded is first placed inside the mounting groove 10. Simultaneously, four electric telescopic rods 11 extend synchronously, causing the anti-slip pad 15 on one side of the clamping groove 14 to contact the surface of the liquefied gas cylinder raw material, thus fixing the raw material. The raw material to be connected is then fixed to the bottom of the moving plate 6. Simultaneously, motor 3 drives the threaded rod 4 to rotate, causing the raw material on the bottom of the moving plate 6 to align with the raw material under the guidance rod 5. The sliding frame 27, on the surface of the adjusting frame 24, moves the welding torch 26 to one side of the welding area, and the T-shaped threaded rod 28 rotates to contact the surface of the adjusting frame 24, thus fixing the sliding frame 27. The system controls the electric telescopic rod 29 to extend the welding torch 26, thereby welding the liquefied gas cylinder raw material. Simultaneously, the motor 7 drives the gear 8 to rotate, which in turn drives the mounting groove 10 on the top surface of the gear 9 to rotate, thus rotating the liquefied gas cylinder raw material for welding. The connecting block 18 moves on the surface of the rotating rod 16, and the electric telescopic rod 20 drives the striking ball 23 to contact the mating area. At the same time, the T-shaped threaded rod 19 rotates and contacts the surface of the rotating rod 16. During the rotation of the gear 8, the rotating rod 16 is rotated synchronously, and the striking ball 23 at the telescopic end of the electric telescopic rod 20 on the surface strikes the weld slag generated in the weld area, enabling continuous welding work.

[0038] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A liquefied gas cylinder welding apparatus comprising a support leg (1), characterized in that: The top surface of the support leg (1) is provided with a bottom plate (2); The top surface of the bottom plate (2) is provided with a rotating rod (16), one end of the rotating rod (16) is fixedly connected with a limiting block (17), the surface of the rotating rod (16) is slidably connected with a connecting block (18), the inside of the connecting block (18) is threadedly connected with a T-shaped threaded rod one (19), the surface of the connecting block (18) is fixedly connected with an electric telescopic rod two (20), the telescopic end of the electric telescopic rod two (20) is fixedly connected with a mounting plate (21), one side of the mounting plate (21) is fixedly connected with a spring (22), one end of the spring (22) is fixedly connected with a knocking ball (23).

2. The liquefied gas cylinder welding apparatus according to claim 1, wherein The bottom side of the bottom plate (2) is connected with a motor one (3) through bolts, and the output end of the motor one (3) is fixedly sleeved with a threaded rod (4).

3. The liquefied gas cylinder welding apparatus according to claim 2, wherein The top surface of the bottom plate (2) is fixedly connected with a guide rod (5), the surface of the guide rod (5) is slidably connected with a moving plate (6), and the inside of the moving plate (6) is threadedly connected with the surface of the threaded rod (4).

4. The liquefied gas cylinder welding apparatus according to claim 1, wherein The bottom side of the bottom plate (2) is connected with a motor two (7) through bolts, the output end of the motor two (7) is fixedly sleeved with a gear one (8), one side of the gear one (8) is fixedly connected with one end of the rotating rod (16), and one side of the gear one (8) is meshedly connected with a gear two (9).

5. The liquefied gas cylinder welding apparatus according to claim 4, wherein One side of the gear two (9) is rotatably connected to the top surface of the bottom plate (2), and the top surface of the gear two (9) is fixedly connected with a mounting groove (10).

6. The liquefied gas cylinder welding apparatus according to claim 5, wherein The inside of the mounting groove (10) is fixedly connected with an electric telescopic rod one (11), the telescopic end inside of the electric telescopic rod one (11) is fixedly connected with a fixed shaft (12), both ends of the fixed shaft (12) are rotatably connected with a connecting frame (13), and one side of the connecting frame (13) is fixedly connected with a clamping groove (14).

7. The liquefied gas cylinder welding apparatus according to claim 1, wherein One side of the bottom plate (2) is fixedly connected with an adjusting frame (24), one side of the adjusting frame (24) is fixedly connected with a welding machine body (25), and one side of the welding machine body (25) is provided with a welding gun (26).

8. The liquefied gas cylinder welding apparatus according to claim 7, wherein The surface of the adjusting frame (24) is slidably connected with a sliding frame (27), the inside of the sliding frame (27) is threadedly connected with a T-shaped threaded rod two (28), one side of the sliding frame (27) is fixedly connected with an electric telescopic rod three (29), and the telescopic end of the electric telescopic rod three (29) is fixedly connected with one side of the welding gun (26).

9. A method of welding a liquefied gas cylinder, implemented by means of a welding apparatus according to any one of claims 1-8, characterized in that: The steps include: Step one, first, the gas cylinder raw material is placed inside the mounting groove (10), and meanwhile, four electric telescopic rods one (11) are controlled to extend synchronously, thereby driving the anti-skid pads (15) inside the clamping grooves (14) to contact the surface of the gas cylinder raw material, and then the fixation of the gas cylinder raw material is completed, and the gas cylinder raw material to be welded is clamped and fixed on the top; Step two, the motor one (3) is controlled to drive the threaded rod (4) to rotate, thereby driving the moving plate (6) to guide the fixed gas cylinder raw material inside to butt joint with the fixed gas cylinder raw material at the bottom side under the guidance of the guide rod (5); Step three, push the sliding frame (27) on the surface of the adjustment frame (24) sliding, while the control of electric telescopic rod three (29) extension, followed by the welding gun (26) to the side of the welding area, while rotating T-shaped threaded rod two (28) in the sliding frame (27) to move, while the T-shaped threaded rod two (28) with the adjustment frame (24) side contact, followed by the completion of the fixed sliding frame (27), control the welding gun (26) to weld the raw materials; Step four, control the motor two (7) gear one (8) to rotate, while driving the gear two (9) side of the installation groove (10) to rotate, while driving the installation groove (10) inside the gas cylinder raw materials to rotate and weld; Step five, before welding, control the connecting block (18) on the surface of the rotating rod (16) to move, while controlling the electric telescopic rod two (20) to drive the knocking ball (23) to contact with the butt joint area, while rotating the T-shaped threaded rod one (19) with the surface of the rotating rod (16) contact, while in the process of gear one (8) rotation, synchronous drive rotating rod (16) to rotate, while driving the knocking ball (23) on the surface of the electric telescopic rod two (20) extension end to knock the slag produced by the weld area, realize the subsequent continuous welding work.

Citation Information

Patent Citations

  • A welding device and welding method for vehicle liquefied natural gas cylinders

    CN113941822B