Conveying equipment for steel cylinder circular seam automatic welding
By using a support frame and a motor-driven conveying system, the problems of unstable cylinder conveying, inconvenience in clamping and moving in existing equipment have been solved, achieving fast, stable, and convenient conveying of cylinders and improving welding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XIGANG NEW STEEL GROUP CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing cylinder conveying equipment is not convenient for fast and stable conveying, for clamping and conveying finished cylinders to another process after circumferential welding, for fast lateral movement of cylinders, for convenient centering and clamping of cylinders by the conveying equipment, and for switching between two sets of conveyors, which affects the conveying efficiency during cylinder welding.
The conveying system, composed of components such as support frame, servo motor, stepper motor, power motor, pulleys and belts, uses the servo motor to drive the active pulley and belt to move, and the stepper motor and power motor to control the movement and clamping of the clamping arms, so as to realize the fast and stable conveying, lateral movement and centering clamping of the cylinders, and facilitate the switching between two sets of conveyors.
It enables rapid and stable conveying of gas cylinders, convenient clamping of circumferential welded products, rapid lateral movement and centering clamping, thus improving the conveying efficiency during gas cylinder welding.
Smart Images

Figure CN224211878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying equipment technology, specifically to a conveying equipment for automatic welding of circumferential seams of steel cylinders. Background Technology
[0002] Gas cylinders are steel cylinders used to store high-pressure oxygen, coal gas, liquefied petroleum gas, etc. Gas cylinders generally contain permanent gases, liquefied gases, or mixtures of gases. Gas cylinder filling units, gas cylinder inspection units, and gas cylinder users include factories, laboratories, hospitals, schools, disease control centers, electronics rooms, clean rooms, and industrial institutions. An automatic circumferential seam welding machine is a general-purpose automatic welding equipment capable of completing various circular and circumferential welds. It can be used for high-quality welding of materials such as carbon steel, low-alloy steel, stainless steel, aluminum and its alloys, and can be equipped with various welding power sources such as argon arc welding, gas metal arc welding, and plasma welding to form a complete automatic circumferential seam welding system.
[0003] As disclosed in CN214933029U, a conveyor line for steel cylinder production includes a linear conveyor frame. The conveyor frame is a trough-shaped support, supported by support legs. Multiple rows of conveyor rollers are arranged in parallel from one end to the other inside the conveyor frame, and the upper part of the conveyor rollers forms a conveyor platform. Each conveyor roller has a roller shaft at both ends. One roller shaft is supported by a bearing on one side wall of the conveyor frame, and the other roller shaft is supported by a bearing on the other side wall of the conveyor frame and extends outward to form an extended end. A drive sprocket is fixedly installed on each extended end. A conveyor chain is connected to all the drive sprockets. The upper stroke section of the conveyor chain meshes with all the drive sprockets, and a chain tensioning structure is provided in the lower stroke section of the conveyor chain. A driven wheel is also installed on the extended end of the roller shaft at the front end of the conveyor. The driven wheel is connected to the drive wheel at the output end of the drive motor through a drive belt.
[0004] While it saves power and improves the stability of cylinder operation, it does not solve the problems that existing conveying equipment is generally not conducive to the rapid and stable transport of cylinders, is not convenient for clamping and transporting cylinders with circumferential welded seams to another process, is not convenient for the rapid lateral movement of cylinders, is not convenient for the conveying equipment to conveniently center and clamp and fix cylinders, and is not convenient for switching between two sets of conveyors to transport cylinders, thus affecting the efficiency of the conveying equipment in transporting cylinders during welding. Utility Model Content
[0005] The purpose of this utility model is to provide a conveying device for automatic welding of steel cylinder circumferential seams, so as to solve the problems mentioned in the background art, such as the inconvenience of conveying the steel cylinder quickly and stably, the inconvenience of clamping and conveying the finished product of the steel cylinder circumferential seam welding to another process, the inconvenience of the rapid lateral movement of the steel cylinder, the inconvenience of the conveying device for convenient centering and clamping and fixing of the steel cylinder, and the inconvenience of switching the conveying of steel cylinders between two sets of conveyors, which affect the efficiency of the conveying device in conveying the steel cylinder during welding.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a conveying device for automatic welding of circumferential seams of steel cylinders, comprising a support frame and a right conveyor belt. A right conveyor belt is provided on the outer side of the support frame, and a left conveyor belt is provided on the outer side of the support frame away from the right conveyor belt. A movable frame is slidably installed inside the support frame, extending to the outside of the support frame. A crossbeam is slidably installed at the bottom end of the movable frame. A connecting frame is installed on the outer wall of the crossbeam. A clamping frame is installed at the bottom end of the connecting frame. A servo motor is installed at the top of the support frame. A first driving pulley is installed at the output end of the servo motor. A rotating shaft is movably installed at the top of the support frame on one side of the first driving pulley. A first driven pulley is installed at the end of the rotating shaft near the servo motor. A first belt is fitted onto the surface of the first driven pulley, extending to the surface of the first driving pulley. Upper pulleys are symmetrically installed at both ends of the rotating shaft near the first driving pulley.
[0007] Preferably, lower pulleys are symmetrically and movably installed at the bottom end of the support frame below the upper pulley, and upper belts are fitted on the surface of the upper pulleys, with the upper belts extending to the surface of the lower pulleys on the adjacent side.
[0008] Preferably, triangular blocks are symmetrically installed on the outer wall of the mobile frame, and each triangular block is connected to the upper belt on the adjacent side.
[0009] Preferably, a stepper motor is installed on the outer wall of the movable frame near the triangular block, and a drive shaft is installed at the output end of the stepper motor, with the drive shaft extending into the interior of the movable frame.
[0010] Preferably, a second drive pulley is fitted on the surface of the drive shaft, a second belt is fitted on the surface of the second drive pulley, a support shaft is movably installed inside the moving frame on the side away from the stepper motor, a second driven pulley is fitted on the surface of the support shaft, and the second belt extends to the surface of the second driven pulley, and the crossbeam is connected to the second belt.
[0011] Preferably, a power motor is installed at the top of the clamping frame, and a gear is movably installed inside the clamping frame, with the output end of the power motor connected to the gear.
[0012] Preferably, a slide rail is installed inside the clamping frame below the gear, and racks are symmetrically installed inside the clamping frame, with the racks meshing with the gear.
[0013] Preferably, each rack has a clamping arm installed at its bottom end, and each clamping arm on one side of the rack has a slider installed at its top end, with the slider slidably connected to the slide rail.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the conveying equipment not only realizes the fast and stable conveying of the steel cylinder, but also facilitates the clamping and conveying of the steel cylinder after the circumferential weld is completed to another process, and facilitates the rapid lateral movement and conveying of the steel cylinder, but also facilitates the convenient centering, clamping and fixing of the steel cylinder by the conveying equipment, facilitates the switching of the conveying of steel cylinders between two sets of conveyors, and improves the conveying efficiency of the conveying equipment when welding steel cylinders.
[0015] (1) Place the steel cylinder to be welded on the surface of the left conveyor belt. The left conveyor belt transports the steel cylinder. After the welding machine on one side of the left conveyor belt automatically welds the circumferential seam of the steel cylinder, the left conveyor belt drives the steel cylinder to be transported to the bottom of the moving frame. The servo motor drives the first active pulley to rotate, the first active pulley drives the first belt to move, the first belt drives the first driven pulley to rotate, the first driven pulley drives the rotating shaft to rotate, the rotating shaft drives the upper pulley to rotate, the upper pulley drives the upper belt to move, and under the movable support of the lower pulley, the upper belt drives the triangular block to move. The triangular block drives the moving frame, crossbeam, connecting frame, clamping frame, and clamping arm to move to a suitable height. The stepper motor controls... The second belt moves, driving the crossbeam, connecting frame, clamping frame, and clamping arm to move above the cylinder. The power motor controls the clamping arm to hold the cylinder. The servo motor and stepper motor are turned in reverse, moving the cylinder above the right conveyor belt. The power motor is turned in reverse, placing the cylinder on the surface of the right conveyor belt. The right conveyor belt is then turned on to transport the cylinder to the next process, facilitating the discharge of the welded cylinder. This achieves fast and stable conveying of the cylinder, facilitating the clamping and transport of the welded cylinder to another process, and enabling easy switching between two sets of conveyors to transport cylinders, thus improving the efficiency of the conveying equipment during cylinder welding.
[0016] (2) The stepper motor drives the drive shaft to rotate, the drive shaft drives the second active pulley to rotate, the second active pulley drives the second belt to move, the second belt drives the crossbeam to move, the moving frame supports the support shaft, the support shaft provides movable support for the second driven pulley, the second driven pulley supports the second belt, and the crossbeam drives the connecting frame, clamping frame, and clamping arm to move, so as to facilitate the lateral movement and conveying, and to facilitate the conveying of the cylinder above the left conveyor belt to the upper part of the right conveyor belt, thus realizing the convenient conveying and movement of the cylinder by the conveying equipment, and facilitating the rapid lateral movement and conveying of the cylinder;
[0017] (3) The power motor drives the gear to rotate, the gear drives the two sets of racks to move synchronously, the racks drive the clamping arms to move, the slider slides on the surface of the slide rail to provide sliding support for the clamping arms, and the two sets of clamping arms quickly and stably center and clamp the steel cylinder, realizing the convenient centering and clamping of the steel cylinder by the conveying equipment, which facilitates the hoisting and conveying of the steel cylinder. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a three-dimensional structural diagram of the mobile frame of this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the second belt of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the servo motor of this utility model;
[0022] Figure 5 This is a three-dimensional structural diagram of the power motor of this utility model;
[0023] Figure 6 This is a three-dimensional structural diagram of the gear of this utility model;
[0024] Figure 7 This is a three-dimensional structural diagram of the rack of this utility model.
[0025] In the diagram: 1. Support frame; 2. Right conveyor belt; 3. Left conveyor belt; 4. Moving frame; 5. Crossbeam; 6. Connecting frame; 7. Clamping frame; 8. Servo motor; 9. First driving pulley; 10. First driven pulley; 11. First belt; 12. Rotating shaft; 13. Upper belt; 14. Upper pulley; 15. Lower pulley; 16. Triangular block; 17. Stepper motor; 18. Drive shaft; 19. Second driving pulley; 20. Second belt; 21. Clamping arm; 22. Second driven pulley; 23. Support shaft; 24. Power motor; 25. Gear; 26. Slide rail; 27. Rack; 28. Slider. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0027] Please see Figure 1-7This utility model provides an embodiment of an automatic conveying device for welding circumferential seams of steel cylinders, comprising a support frame 1 and a right conveyor belt 2. The right conveyor belt 2 is provided on the outer side of the support frame 1, and a left conveyor belt 3 is provided on the outer side of the support frame 1 away from the right conveyor belt 2. A movable frame 4 is slidably installed inside the support frame 1, and the movable frame 4 extends to the outside of the support frame 1. A crossbeam 5 is slidably installed at the bottom end of the movable frame 4. A connecting frame 6 is installed on the outer wall of the crossbeam 5. A clamping frame 7 is installed at the bottom end of the connecting frame 6. A servo motor 8 is installed at the top end of the support frame 1. A first drive pulley 9 is installed at the output end of the servo motor 8. The top of the support frame 1 on one side of the first drive pulley 9... A rotating shaft 12 is movably mounted at one end. A first driven pulley 10 is mounted at one end of the rotating shaft 12 near the servo motor 8. A first belt 11 is fitted on the surface of the first driven pulley 10 and extends to the surface of the first driving pulley 9. Upper pulleys 14 are symmetrically mounted at both ends of the rotating shaft 12 near the first driving pulley 9. Lower pulleys 15 are symmetrically movably mounted at the bottom end of the support frame 1 below the upper pulleys 14. Upper belts 13 are fitted on the surface of the upper pulleys 14 and extend to the surface of the lower pulleys 15 on the adjacent side. Triangular blocks 16 are symmetrically mounted on the outer wall of the movable frame 4 and are connected to the upper belts 13 on the adjacent side.
[0028] The steel cylinder to be welded is placed on the surface of the left conveyor belt 3. The left conveyor belt 3 is turned on, and it transports the cylinder. After the welding machine on one side of the left conveyor belt 3 automatically welds the circumferential seam of the cylinder, the left conveyor belt 3 transports the cylinder to the underside of the moving frame 4. The servo motor 8 is turned on, and with the support of the support frame 1, the servo motor 8 drives the first drive pulley 9 to rotate. The first drive pulley 9 drives the first belt 11 to move, the first belt 11 drives the first driven pulley 10 to rotate, the first driven pulley 10 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the upper pulley 14 to rotate, the upper pulley 14 drives the upper belt 13 to move, and with the movable support of the lower pulley 15, the upper belt 13 drives the triangular block 16 to move. The triangular block 16 drives the moving frame 4, the crossbeam 5, the connecting frame 6, the clamping frame 7, and the clamping arm 21 to move to a suitable height. To facilitate the lifting of the conveying equipment, stepper motor 17 is turned on, controlling the movement of the second belt 20. The second belt 20 drives the crossbeam 5, connecting frame 6, clamping frame 7, and clamping arm 21 to move above the cylinder. Power motor 24 is turned on, controlling the clamping arm 21 to clamp the cylinder. Servo motor 8 and stepper motor 17 are turned on in reverse, moving the cylinder above the right conveyor belt 2. Power motor 24 is turned on in reverse, placing the cylinder on the surface of the right conveyor belt 2. The right conveyor belt 2 is then turned on to transport the cylinder to the next process, facilitating the discharge of the welded cylinder. This achieves fast and stable conveying of the cylinder, facilitating the clamping and transport of the welded cylinder to another process, and enabling easy switching between two sets of conveyors to transport cylinders, thus improving the efficiency of the conveying equipment during cylinder welding.
[0029] A stepper motor 17 is installed on the outer wall of the movable frame 4 near the triangular block 16. A drive shaft 18 is installed at the output end of the stepper motor 17 and extends into the interior of the movable frame 4. A second drive pulley 19 is fitted on the surface of the drive shaft 18 and a second belt 20 is fitted on the surface of the second drive pulley 19. A support shaft 23 is movably installed inside the movable frame 4 on the side away from the stepper motor 17. A second driven pulley 22 is fitted on the surface of the support shaft 23 and the second belt 20 extends to the surface of the second driven pulley 22. The crossbeam 5 is connected to the second belt 20.
[0030] When the stepper motor 17 is turned on, supported by the moving frame 4, the stepper motor 17 drives the drive shaft 18 to rotate, the drive shaft 18 drives the second drive pulley 19 to rotate, the second drive pulley 19 drives the second belt 20 to move, the second belt 20 drives the crossbeam 5 to move, the moving frame 4 supports the support shaft 23, the support shaft 23 provides movable support for the second driven pulley 22, the second driven pulley 22 supports the second belt 20, and the crossbeam 5 drives the connecting frame 6, the clamping frame 7, and the clamping arm 21 to move, so as to facilitate the lateral movement and conveying, and to facilitate the conveying of the cylinder above the left conveyor belt 3 to the right conveyor belt 2, thus realizing the convenient conveying and movement of the cylinder by the conveying equipment, and facilitating the rapid lateral movement and conveying of the cylinder.
[0031] A power motor 24 is installed at the top of the clamping frame 7. A gear 25 is movably installed inside the clamping frame 7, and the output end of the power motor 24 is connected to the gear 25. A slide rail 26 is installed inside the clamping frame 7 below the gear 25. A rack 27 is symmetrically installed inside the clamping frame 7, and the rack 27 meshes with the gear 25. A clamping arm 21 is installed at the bottom of each rack 27. A slider 28 is installed at the top of each clamping arm 21 on one side of the rack 27, and the slider 28 is slidably connected to the slide rail 26.
[0032] When the power motor 24 is turned on, the power motor 24 drives the gear 25 to rotate under the support of the clamping frame 7. Under the meshing of the gear 25 and the rack 27, the gear 25 drives the two sets of racks 27 to move synchronously. The racks 27 drive the clamping arms 21 to move. The slider 28 slides on the surface of the slide rail 26 to provide sliding support for the clamping arms 21. The two sets of clamping arms 21 quickly and stably center and clamp the steel cylinder, realizing the convenient centering, clamping and fixing of the steel cylinder by the conveying equipment, which facilitates the hoisting and conveying of the steel cylinder.
[0033] In this embodiment, the following steps are taken: First, the steel cylinder to be welded is placed on the surface of the left conveyor belt 3. The left conveyor belt 3 transports the steel cylinder. After the welding machine on one side of the left conveyor belt 3 automatically welds the circumferential seam of the steel cylinder, the left conveyor belt 3 transports the steel cylinder to below the moving frame 4. The servo motor 8 drives the first drive pulley 9 to rotate, the first drive pulley 9 drives the first belt 11 to move, the first belt 11 drives the first driven pulley 10 to rotate, the first driven pulley 10 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the upper pulley 14 to rotate. The upper pulley 14 drives the upper belt 13 to move. With the movable support of the lower pulley 15, the upper belt 13 drives the triangular block 16 to move. The triangular block 16 drives the moving frame 4, crossbeam 5, connecting frame 6, clamping frame 7, and clamping arm 21 to move to a suitable height, facilitating the convenient lifting of the conveying equipment. The stepper motor 17 controls the movement of the second belt 20. The second belt 20 drives the crossbeam 5, connecting frame 6, clamping frame 7, and clamping arm 21 to move above the gas cylinder. The power motor 24 controls the clamping arm 21 to clamp the gas cylinder. The servo motor 8 and stepper motor 17 are reversed and opened. The cylinder is moved above the right conveyor belt 2, and the power motor 24 is turned on in reverse. The cylinder is placed on the surface of the right conveyor belt 2, and the right conveyor belt 2 is turned on to transport the cylinder to the next process, facilitating the discharge of the welded cylinder. The stepper motor 17 drives the drive shaft 18 to rotate, which in turn drives the second drive pulley 19 to rotate. The second drive pulley 19 drives the second belt 20 to move, which in turn drives the crossbeam 5 to move. The moving frame 4 supports the support shaft 23, which in turn provides movable support for the second driven pulley 22. The second driven pulley 22 supports the second belt 20. The crossbeam 5 drives the connecting frame 6, clamping frame 7, and clamping arm 21 to move, so as to facilitate lateral movement and conveying, and to facilitate the conveying of the steel cylinder above the left conveyor belt 3 to the right conveyor belt 2. The power motor 24 drives the gear 25 to rotate, and the gear 25 drives the two sets of racks 27 to move synchronously. The racks 27 drive the clamping arm 21 to move, and the slider 28 slides on the surface of the slide rail 26 to provide sliding support for the clamping arm 21. The two sets of clamping arms 21 quickly and stably center and clamp the steel cylinder to complete the operation of the conveying equipment.
Claims
1. A conveying device for automatic welding of circumferential seams on steel cylinders, characterized in that: The system includes a support frame (1) and a right conveyor belt (2). The right conveyor belt (2) is provided on the outer side of the support frame (1), and a left conveyor belt (3) is provided on the outer side of the support frame (1) away from the right conveyor belt (2). A movable frame (4) is slidably installed inside the support frame (1) and extends to the outside of the support frame (1). A crossbeam (5) is slidably installed at the bottom end of the movable frame (4). A connecting frame (6) is installed on the outer wall of the crossbeam (5). A clamping frame (7) is installed at the bottom end of the connecting frame (6). A clamping frame (7) is installed at the top end of the support frame (1). The device is equipped with a servo motor (8), and a first drive pulley (9) is installed at the output end of the servo motor (8). A rotating shaft (12) is movably installed at the top of the support frame (1) on one side of the first drive pulley (9). A first driven pulley (10) is installed at one end of the rotating shaft (12) near the servo motor (8). A first belt (11) is fitted on the surface of the first driven pulley (10), and the first belt (11) extends to the surface of the first drive pulley (9). Upper pulleys (14) are symmetrically installed at both ends of the rotating shaft (12) near the first drive pulley (9).
2. The conveying equipment for automatic welding of circumferential seams of steel cylinders according to claim 1, characterized in that: The support frame (1) below the upper pulley (14) is symmetrically and movably mounted with a lower pulley (15). The surface of the upper pulley (14) is fitted with an upper belt (13), and the upper belt (13) extends to the surface of the lower pulley (15) on the adjacent side.
3. The conveying equipment for automatic welding of circumferential seams of steel cylinders according to claim 1, characterized in that: Triangular blocks (16) are symmetrically installed on the outer wall of the mobile frame (4), and each triangular block (16) is connected to the upper belt (13) on the adjacent side.
4. The conveying equipment for automatic welding of circumferential seams of steel cylinders according to claim 1, characterized in that: A stepper motor (17) is installed on the outer wall of the movable frame (4) near the triangular block (16). A drive shaft (18) is installed at the output end of the stepper motor (17), and the drive shaft (18) extends into the interior of the movable frame (4).
5. The conveying equipment for automatic welding of circumferential seams of steel cylinders according to claim 4, characterized in that: The surface of the drive shaft (18) is fitted with a second drive pulley (19), and the surface of the second drive pulley (19) is fitted with a second belt (20). The moving frame (4) is internally mounted with a support shaft (23) on the side away from the stepper motor (17). The surface of the support shaft (23) is fitted with a second driven pulley (22), and the second belt (20) extends to the surface of the second driven pulley (22). The crossbeam (5) is connected to the second belt (20).
6. The conveying equipment for automatic welding of circumferential seams of steel cylinders according to claim 1, characterized in that: A power motor (24) is installed at the top of the clamping frame (7), and a gear (25) is movably installed inside the clamping frame (7), and the output end of the power motor (24) is connected to the gear (25).
7. The conveying equipment for automatic welding of circumferential seams of steel cylinders according to claim 6, characterized in that: The clamping frame (7) below the gear (25) is equipped with a slide rail (26), and a rack (27) is symmetrically installed inside the clamping frame (7), and the rack (27) meshes with the gear (25).
8. The conveying equipment for automatic welding of circumferential seams of steel cylinders according to claim 7, characterized in that: Each rack (27) has a clamping arm (21) installed at its bottom end. Each clamping arm (21) on one side of the rack (27) has a slider (28) installed at its top end. The slider (28) is slidably connected to the slide rail (26).