Hydrogen storage tank inner container welding and cutting operation system

Abstract

The utility model belongs to hydrogen storage tank inner bag processing automation technical field, solves the existing processing equipment for the hydrogen storage tank inner bag processing to exist the insufficient of not high processing quality, the low processing efficiency, provides hydrogen storage tank inner bag welding cutting operation system, it includes: the first clamping device and the second clamping device opposite each other and is respectively used for clamping first hydrogen storage tank inner bag department and second hydrogen storage tank inner bag department, infrared heating device is used for heating two hydrogen storage tank inner bag department respective to be welded end face, the first top pressure device and the second top pressure device opposite each other, are used for making two to be welded end face be welded together, thereby obtaining complete hydrogen storage tank inner bag, cutting device is used for carrying out cutting to the weld on hydrogen storage tank inner bag periphery, it still includes: feeding device, robot is used for clamping each hydrogen storage tank inner bag department and hydrogen storage tank inner bag, the utility model has the advantages of high processing quality, high processing efficiency for the hydrogen storage tank inner bag processing.

Description

Technical Field

[0001] This utility model relates to the field of automated processing technology for hydrogen storage tank liners, and in particular to a welding and cutting system for hydrogen storage tank liners. Background Technology

[0002] Hydrogen storage tanks are commonly used for centralized transportation of hydrogen. Due to the special physicochemical properties of hydrogen, it is prone to accidents such as deflagration and is classified as a dangerous transport item, requiring extremely high standards for its transportation. Therefore, the processing quality of the welding of the hydrogen tank liner is of paramount importance. Currently, the processing equipment for welding and cutting hydrogen storage tank liners requires manual operation of different clamping mechanisms at the welding and cutting stations to hold the liner. Furthermore, a manual transfer mechanism is needed to transport the welded liner, released by one clamping mechanism, to the cutting station for clamping by another. After cutting, the finished liner must be manually transported to the next process. This process is not only inefficient, but also prone to uneven placement of the liner during transport, affecting processing quality. Additionally, the relatively distant location of the welding and cutting stations further reduces the overall processing efficiency.

[0003] In summary, existing processing equipment suffers from technical problems such as low processing quality and low processing efficiency when processing the inner liner of hydrogen storage tanks. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies in the processing of hydrogen storage tank liners, namely low processing quality and low processing efficiency. To achieve one objective of this utility model, it provides a hydrogen storage tank liner welding and cutting system, comprising: a hydrogen storage tank liner welding and cutting machine, which includes: a first clamping device and a second clamping device facing each other, used to clamp a first hydrogen storage tank liner portion and a second hydrogen storage tank liner portion respectively; an infrared heating device, including an infrared heating component, which moves in and out between the first clamping device and the second clamping device, and the infrared heating component moving in and out between the first clamping device and the second clamping device heats the respective end faces of the two hydrogen storage tank liners to be welded; and a first pressing device and a second pressing device facing each other, which press when the infrared heating component moves out of the first clamping device. After the first and second clamping devices are in place, the first and second pressing devices press the first and second hydrogen storage tank inner liner parts against each other to weld their end faces together, thereby obtaining a complete hydrogen storage tank inner liner. The cutting device is used to cut the weld seam on the outer periphery of the hydrogen storage tank inner liner. The hydrogen storage tank inner liner welding and cutting operation system also includes: a feeding device for inputting the first and second hydrogen storage tank inner liner parts relative to the hydrogen storage tank inner liner welding and cutting machine and outputting the hydrogen storage tank inner liner parts; a robot for clamping the first and second hydrogen storage tank inner liner parts input by the feeding device so that they can be clamped by the first and second clamping devices respectively, and for clamping the hydrogen storage tank inner liner parts cut by the cutting device so that they can be output by the feeding device.

[0005] Furthermore, the feeding device includes a first conveying mechanism and a second conveying mechanism aligned with each other along a first direction and having a space between them. The first conveying mechanism includes a first material support bracket and a first conveyor belt, and the second conveying mechanism includes a second material support bracket and a second conveyor belt. The robot is arranged in the space. The first conveyor belt conveys the inner liner of the first hydrogen storage tank and the inner liner of the second hydrogen storage tank towards the robot along the first direction, and the second conveyor belt conveys the inner liner of the hydrogen storage tank away from the robot along the first direction.

[0006] Furthermore, the hydrogen storage tank inner liner welding cutting machine includes a frame, which includes a base frame and side frames. Relative to each other, the robot and the feeding device are located on the first side of the base frame, and the cutting device and the heating device are located on the second side of the base frame opposite to the first side. The heating device and the cutting device are spaced apart from each other.

[0007] Furthermore, the robot includes a robotic arm and two vacuum adsorption devices connected to the robotic arm. Each vacuum adsorption device includes a fixed support plate and multiple vacuum suction cups disposed on the fixed support plate. The two fixed support plates are parallel to the central axis of the inner liner of the hydrogen storage tank or the inner liner of the hydrogen storage tank. The two fixed support plates are inclined relative to the horizontal plane passing through the central axis and symmetrical relative to the vertical plane passing through the central axis. Each vacuum suction cup on each fixed support plate applies a vacuum adsorption force to the inner liner of the hydrogen storage tank or the outer periphery of the inner liner of the hydrogen storage tank along the central axis.

[0008] Furthermore, the welding and cutting operation system for the inner liner of the hydrogen storage tank also includes four guardrails forming a hollow rectangular tetrahedron, with guardrail inlets for the first conveyor belt to pass through and guardrail outlets for the second conveyor belt to pass through on a pair of opposing guardrails.

[0009] Furthermore, both the first and second clamping devices include: a support frame, comprising a hollow support cylinder and a support ring protruding from the outer periphery of one end of the support cylinder, wherein the inner liner of the first or second hydrogen storage tank is spaced apart within the support cylinder; multiple grippers, arranged circumferentially on the support ring and movable radially along the support ring, each gripper having a clamping surface facing the central axis of the support ring, and each gripper's clamping surface having a conformal shape adapted to the inner liner of the first or second hydrogen storage tank; a drive ring connected to the support ring; a drive mechanism that drives the drive ring to rotate to drive each gripper to move closer or further away from the central axis of the support ring radially; a rotating ring fixedly connected to the support cylinder; and a rotating mechanism that drives the rotating ring to rotate, thereby enabling the rotating ring to drive one of the inner liners of the hydrogen storage tank held by the grippers to rotate around the central axis of the support ring; the outer ring of the rotating ring is provided with a driven gear; the rotating mechanism includes a rotating motor and an active gear. The gears, with the driving gear and driven gear meshing, are driven by a rotating motor. The driving gear rotates to rotate the support ring, causing multiple jaws to rotate synchronously with the support ring. The infrared heating assembly has two heating surfaces. When the two heating welding end faces are heated, the jaws of each clamping device move closer, so that the clamping surfaces of each jaw form a clamping surface for attaching and holding the circumferential outer surface of the first or second hydrogen storage tank liner after it has been gripped and released by the robot. The rotating motor drives the first or second hydrogen storage tank liner to rotate, and the infrared heating assembly moves between the two clamping devices under the drive of the moving motor, simultaneously heating the two heating welding end faces. After the two heating welding end faces have been heated, the infrared heating assembly moves out between the two clamping devices under the drive of the moving motor, the rotating motor stops working, and the two heating welding end faces are pressed together by the first and second pressing devices to obtain the hydrogen storage tank liner.

[0010] Furthermore, the infrared heating device includes: a drive bracket with a first leg; an infrared heating component fixedly connected to the drive bracket; a first support plate with a first guide rail that slides with the first leg; a moving motor supported on the first support plate, the moving motor being drivenly connected to the drive bracket to drive the first leg to move along the first guide rail; a second support plate located below the first support plate with a second guide rail, the second guide rail being perpendicular to the first guide rail, a second leg that slides with the second guide rail on the side of the first support plate facing the second support plate, and driving components that drive the second leg to move in opposite directions along the second guide rail on both sides of the second support plate.

[0011] Furthermore, the cutting device includes: a reciprocating support, including a first guide foot and a support plate; a cutting assembly supported on the support plate, the cutting assembly including a cutting holder, a cutting motor, and a cutting blade, the cutting motor driving the cutting blade located in the cutting holder to rotate; a support plate, provided with a first guide rail that slides with the first guide foot; a displacement motor supported on the support plate, the displacement motor being driven and connected to the reciprocating support to drive the first guide foot to move along the first guide rail; a power advance motor supported on the support plate, the power advance motor being driven and connected to the cutting holder, the cutting holder being provided with a second guide foot, the support plate being provided with a second guide rail, the power advance motor driving the second guide foot to move the cutting blade along the second guide rail, the cutting blade being used to cut the weld seam on the inner liner of the hydrogen storage tank rotated by the two clamping devices under the drive of the power advance motor.

[0012] Furthermore, the hydrogen storage tank liner welding and cutting machine includes a frame, which includes a base frame. The base frame supports various clamping and rotating devices and various pressing devices. The first pressing device includes a first pressing motor, a pair of parallel first guide rails, and a first pressing frame. The first guide rails are mounted on the base frame, and the first pressing frame is mounted on the base frame and has a first pressing cylinder installed on it. The drive shaft of the first pressing motor drives the first pressing frame to move along the first guide rails, so that the first pressing cylinder can press the inner liner of the first hydrogen storage tank against the inner liner of the second hydrogen storage tank. The frame also includes a side frame connected to the base frame. The second pressing device includes a second pressing motor, two pairs of parallel first guide rails, and a first pressing frame. The machine includes a second guide rail and a second pressing frame. The second guide rail is mounted on the side frame of the machine. The second pressing frame is slidably supported by the second guide rail and is equipped with a second pressing cylinder. A second pressing motor drives the second pressing frame to move along the second guide rail, so that the second pressing cylinder can press the inner liner of the second hydrogen storage tank against the inner liner of the first hydrogen storage tank. The hydrogen storage tank inner liner welding and cutting machine also includes a shifting motor. A first clamping and rotating device is movably supported on a pair of first guide rails. The drive shaft of the shifting motor is connected to the drive of the first clamping and rotating device. An infrared heating device and a cutting device are located on one side of the machine base frame. The drive shaft of the shifting motor drives the first clamping and rotating device. The clamped inner liner of the first hydrogen storage tank moves to the heating position corresponding to the infrared heating device. The infrared heating component moves between the first clamping and rotating device and the first clamping and rotating device. The infrared heating component heats the opposing end faces of the inner liners of the first and second hydrogen storage tanks, which are rotated by the first clamping and rotating device and the first clamping and rotating device, respectively. After the heating operation is completed, the first clamping and rotating device and the first clamping and rotating device stop rotating. The first pressing cylinder of the first pressure frame and the second pressing cylinder of the second pressure frame press against each other radially on the first and second hydrogen storage tank inner liners, respectively, and squeeze them together. The hydrogen storage tank inner liner is welded and is made of plastic. After the welding operation is completed, the shifting motor drives the first clamping and rotating device to move the hydrogen storage tank inner liner to the cutting position corresponding to the cutting device. The cutting device cuts the weld seam on the outer circumference of the hydrogen storage tank inner liner. The hydrogen storage tank inner liner welding and cutting machine also includes a pair of opposing shifting cylinders and a pair of opposing shifting plates. The shifting cylinders are supported by the machine side frame. The two ends of each shifting plate are connected to the second clamping device and a shifting cylinder, respectively. The shifting plate slides in cooperation with the second guide rail. The piston rod of the shifting cylinder drives the second hydrogen storage tank inner liner held by the second clamping and rotating device to move to the heating position.

[0013] Furthermore, the first and second pressure motors drive the first and second pressure frames respectively in a direction parallel to the first direction, the shifting motor drives the first clamping and rotating device in a direction parallel to the first direction, the moving motor drives the driving bracket in a direction parallel to the second direction, the displacement motor drives the reciprocating bracket in a direction parallel to the second direction, and the power feed motor drives the cutter frame in a direction parallel to the second direction. The first and second directions are perpendicular to each other.

[0014] The beneficial effects of this utility model are as follows:

[0015] The hydrogen storage tank liner welding and cutting system provided by this utility model utilizes a robot working in conjunction with a feeding device and a hydrogen storage tank liner welding and cutting machine. It can quickly and accurately pick up the incoming material from the feeding device and feed it to the hydrogen storage tank liner welding and cutting machine for sequential heating, welding, and cutting in an assembly line manner. It can also quickly pick up the processed hydrogen storage tank liner and feed it to the feeding device for transport to the next process. Therefore, the hydrogen storage tank liner welding and cutting system has the advantages of good processing quality, high degree of automation, and high processing efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0017] Figure 1 This is a schematic diagram of the overall structure of the welding and cutting operation system for the inner liner of the hydrogen storage tank according to an embodiment of the present invention;

[0018] Figure 2 This is a partial structural diagram of the welding device according to an embodiment of the present invention in the rear view direction;

[0019] Figure 3 This is a front view of the overall structure of the welding and cutting machine for the hydrogen storage tank liner of the present utility model embodiment.

[0020] Figure 4 This is a front view of the overall structure of a portion of the first or second clamping device of the hydrogen storage tank inner liner welding and cutting machine in the embodiment of the present utility model.

[0021] Figure 5 This is a rear-view main view of the overall structure of a portion of the first or second clamping device of the hydrogen storage tank inner liner welding and cutting machine of the hydrogen storage tank inner liner welding and cutting operation system according to an embodiment of the present utility model.

[0022] Figure 6 For corresponding Figure 4 Partial diagram of the explosion;

[0023] Figure 7 This is a schematic diagram of the infrared heating device of the hydrogen storage tank inner liner welding and cutting machine in the hydrogen storage tank inner liner welding and cutting operation system of this utility model embodiment.

[0024] Figure 8This is a schematic diagram of the overall structure of the cutting device of the hydrogen storage tank inner liner welding cutting machine in the hydrogen storage tank inner liner welding cutting operation system of this utility model embodiment.

[0025] Figure 9 This is a partial structural schematic diagram of the cutting device of the hydrogen storage tank inner liner welding cutting machine in the hydrogen storage tank inner liner welding cutting operation system of this utility model embodiment.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1000. Welding and cutting system for the inner liner of hydrogen storage tank;

[0028] 100. Welding cutting machine; 10. First clamping / second clamping device; 11. Support frame; 111. Support cylinder; 1111. Cylinder fixing hole; 112. Support ring; 1121. Stepped groove; 1122. Slide groove; 12. Gripper; 121. Clamping plate; 1211. Clamping surface; 122. Force transmission plate; 123. Reinforcing part; 13. Drive ring; 14. Drive mechanism; 141. Drive cylinder; 142. Drive gear; 143. Rack; 144. Mounting plate; 145. Fixing plate; 15. Guide mechanism; 151. Slider; 1511. Protrusion; 152. Guide block; 153. Guide. 154. Cam follower; 16. Guide mechanism; 161. Guide groove; 162. Guide column; 163. Limiting plate; 17. Rotating ring; 171. Driven gear; 18. Rotating mechanism; 181. Rotating motor; 182. Drive gear; 20. Infrared heating device; 21. Drive bracket; 211. First support leg; 212. Support rod; 22. Infrared heating assembly; 221. Heater; 222. Assembly / disassembly frame; 2221. Plug-in plate; 2222. First assembly / disassembly plate; 2223. Second assembly / disassembly plate; 223. Handle; 23. First support plate; 231. First guide rail; 24. Moving motor; 25. Support plate; 26. Insertion plate; 27. Locking assembly; 271. Locking plate; 272. Locking post; 28. Second support plate; 281. Second guide rail; 29. ​​Drive assembly; 291. Handle; 292. Rocker arm; 30. Cutting device; 31. Reciprocating bracket; 311. First guide foot; 312. Support plate; 313. Second guide rail; 314. Reciprocating seat; 315. Positioning plate; 316. Second guide rail; 317. Second guide foot; 32. Cutting blade assembly; 321. Cutting blade holder; 322. Second guide foot; 323. Dust hood; 324. Cutting blade motor; 325. Cutting blade; 33. Support Support plate; 331, First guide rail; 34, Displacement motor; 35, Power motor; 36, Rotation mechanism; 361, Support plate; 362, Floating guide wheel; 37, Transverse brush assembly; 38, Longitudinal brush assembly; 40, First pressing device; 41, First pressing motor; 42, First guide rail; 43, First pressing frame; 44, First pressure cylinder; 50, Second pressing device; 51, Second pressing motor; 52, Second guide rail; 53, Second pressing frame; 54, Second pressure cylinder; 60, Frame; 61, Base frame; 62, Side frame; 70, Shift motor; 80, Shift cylinder; 90, Shift plate;

[0029] 200. Feeding device; 210. First conveying mechanism; 211. First material support bracket; 212. First conveyor belt; 220. Second conveying mechanism; 221. Second material support bracket; 222. Second conveyor belt;

[0030] 300. Robot; 310. Robotic arm; 320. Vacuum adsorption device; 321. Fixed support plate; 322. Vacuum suction cup;

[0031] 400. Guardrail. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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 entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. 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 a process, method, article, or apparatus. Without further limitation, an element limited by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0033] refer to Figures 1 to 9As an objective of this utility model, a hydrogen storage tank liner welding and cutting system 1000 is provided, comprising: a hydrogen storage tank liner welding and cutting machine 100, which includes: a first clamping and rotating device 10 and a second clamping and rotating device 10 facing each other, respectively used to clamp the first hydrogen storage tank liner and the second hydrogen storage tank liner. It should be understood that the two hydrogen storage tank liners can be one of the two parts of a complete hydrogen storage tank liner obtained by welding, and preferably half of a hydrogen storage tank liner. In addition, a complete hydrogen storage tank liner can also be obtained by welding three hydrogen storage tank liners. In this case, the two hydrogen storage tank liners are first welded into a longer hydrogen storage tank liner by the two clamping and rotating devices 10 respectively, and then the longer hydrogen storage tank liner is clamped by one clamping and rotating device 10 and welded to another hydrogen storage tank liner clamped by the other clamping and rotating device 10. The process is repeated to obtain a complete hydrogen storage tank liner; an infrared heating device 20, including an infrared heating component 22, moves in or out between the first clamping device 10 and the second clamping device 10. When the infrared heating component 22 moves between the first clamping device 10 and the second clamping device 10, it heats the respective end faces to be welded of the two hydrogen storage tank liner portions; a first pressing device 40 and a second pressing device 50, which are opposite each other, press the first hydrogen storage tank liner portion and the second hydrogen storage tank liner portion respectively against each other after the infrared heating component 22 moves out between the first clamping device 10 and the second clamping device 10, so that the end faces to be welded are welded together, thereby obtaining a complete hydrogen storage tank liner; a cutting device 30 is used to cut the weld seam on the outer periphery of the hydrogen storage tank liner. The hydrogen storage tank liner welding and cutting system 1000 further includes: a feeding device 200 for inputting a first hydrogen storage tank liner and a second hydrogen storage tank liner relative to the hydrogen storage tank liner welding and cutting machine 100 and outputting a hydrogen storage tank liner; and a robot 300 for respectively gripping the first hydrogen storage tank liner and the second hydrogen storage tank liner input by the feeding device 200 for corresponding clamping by the first clamping device 10 and the second clamping device 10, and for gripping the hydrogen storage tank liner after being cut by the cutting device 30 for output by the feeding device 200. Therefore, the hydrogen storage tank liner welding and cutting operation system 1000 provided by this utility model utilizes the robot 300 working in conjunction with the feeding device 200 and the hydrogen storage tank liner welding and cutting machine 100. It can quickly and accurately pick up the incoming material from the feeding device 200 and feed it to the hydrogen storage tank liner welding and cutting machine 100 for sequential heating, welding and cutting in an assembly line manner. It can also quickly pick up the finished hydrogen storage tank liner and feed it to the feeding device 200 for transport to the next process. Thus, the hydrogen storage tank liner welding and cutting operation system 1000 has the advantages of good processing quality, high degree of automation and high processing efficiency.

[0034] Please refer to the reference. Figure 1 and Figure 2Specifically, the feeding device 200 includes a first conveying mechanism 210 and a second conveying mechanism 220 aligned with each other along a first direction and spaced apart. The first conveying mechanism 210 includes a first support bracket 211 and a first conveyor belt 212, and the second conveying mechanism 220 includes a second support bracket 221 and a second conveyor belt 222. The robot 300 is arranged in the spaced space. The first conveyor belt 212 conveys the inner liner of the first and second hydrogen storage tanks towards the robot 300 along the first direction, while the second conveyor belt 222 conveys the inner liner of the hydrogen storage tank away from the robot 300 along the first direction. In this way, within the operating range of the robot 300, the loading and unloading of materials relative to the welding and cutting machine 100 for the inner liner of the hydrogen storage tank can be completed efficiently, significantly improving work efficiency.

[0035] Please refer to the reference. Figure 3 Specifically, the hydrogen storage tank liner welding and cutting machine 100 includes a frame 60, which comprises a base frame 61 and side frames 62. The robot 300 and the feeding device 200 are located on the first side of the base frame 61, while the cutting device 30 and the heating device are located on the second side of the base frame 61, opposite to the first side. The heating device and the cutting device are spaced apart from each other. In this way, the overall structural space layout of the hydrogen storage tank liner welding and cutting operation system 1000 is reasonable, saving floor space and shortening the distance between different processing stations, which is conducive to further improving processing efficiency.

[0036] Please refer to the reference. Figure 2 Specifically, the robot 300 includes a robotic arm 310 and two vacuum adsorption devices 320 connected to the robotic arm 310. Each vacuum adsorption device 320 includes a fixed support plate 321 and multiple vacuum suction cups 322 mounted on the fixed support plate 321. The two fixed support plates 321 are parallel to the central axis of the hydrogen storage tank liner or the liner itself, and are inclined relative to a horizontal plane passing through the central axis and symmetrical relative to a vertical plane passing through the central axis. Each vacuum suction cup 322 on each fixed support plate 321 applies a vacuum adsorption force to the hydrogen storage tank liner or the outer periphery of the liner along the central axis. Therefore, the two rows of multiple vacuum suction cups 322 parallel to the central axis of the hydrogen storage tank liner used by the robot 300 ensure sufficient clamping force is applied to the liner, thereby ensuring accurate placement of the liner to the preset position.

[0037] Please refer to the reference. Figure 1Specifically, the hydrogen storage tank liner welding and cutting system 1000 also includes four guardrails 400 forming a hollow rectangular tetrahedron. Each pair of opposing guardrails 400 has a guardrail inlet (not shown) for the conveyor belt 212 of the first conveying mechanism 210 to pass through, and a guardrail outlet (not shown) for the conveyor belt 222 of the second conveying mechanism 220 to pass through. In this way, the hydrogen storage tank liner welding and cutting system 1000 is essentially surrounded by the guardrails 400, preventing the operation from being affected by unexpected external factors and ensuring the reliability of the operation.

[0038] Please refer to the reference. Figures 4 to 6Specifically, both the first clamping device 10 and the second clamping device 10 include: a support frame 11, including a hollow support cylinder 111 and a support ring 112 protruding from the outer periphery of one end of the support cylinder 111, with the inner liner of the first hydrogen storage tank or the inner liner of the second hydrogen storage tank located at intervals within the support cylinder 111; a plurality of grippers 12, arranged circumferentially on the support ring 112 and movable radially along the support ring 112, each gripper 12 having a clamping surface 1211 facing the central axis of the support ring 112, and each gripper 12 having a conformal shape adapted to the inner liner of the first hydrogen storage tank or the inner liner of the second hydrogen storage tank; a drive ring 13 connected to the support ring 112; and a drive mechanism 14 for driving the drive. Ring 13 rotates to drive each gripper 12 to move closer or further away from the support ring 112 radially and relative to the central axis of the support ring 112; rotating ring 17 is fixedly connected to the support cylinder 111; rotating mechanism 18 drives rotating ring 17 to rotate, so that rotating ring 17 can drive the inner liner of one of the hydrogen storage tanks held by the grippers 12 to rotate around the central axis of the support ring 112; the outer ring of rotating ring 17 is provided with a driven gear 171; rotating mechanism 18 includes a rotating motor 181 and a driving gear 182, the driving gear 182 meshes with the driven gear 171, the rotating motor 181 drives the driving gear 182 to rotate to drive the support ring 112 to rotate, so that multiple grippers 12 rotate synchronously with the support ring 112. The infrared heating component 22 has two heating surfaces. When the two heating welding end surfaces are heated, the grippers 12 of each clamping device 10 move closer, so that the clamping surfaces 1211 of each gripper 12 form a clamping surface for attaching and clamping the circumferential outer surface of the first hydrogen storage tank liner or the second hydrogen storage tank liner after being gripped and released by the robot 300. The rotating motor 181 drives the first hydrogen storage tank liner or the second hydrogen storage tank liner to rotate, and the infrared heating component 22 moves between the two clamping devices 10 under the drive of the moving motor 24 and heats the two heating welding end surfaces at the same time. After the two heating welding end surfaces have been heated, the infrared heating component 22 moves out between the two clamping devices 10 under the drive of the moving motor 24, the rotating motor 181 stops working, and the two heating welding end surfaces are pressed together by the first pressing device 40 and the second pressing device 50 to obtain the hydrogen storage tank liner. Therefore, the two clamping and rotating devices 10 can adaptably clamp the cylindrical surfaces of the hydrogen storage tank inner liner with different outer diameters by means of multiple jaws 12 that can move closer or further away from the central axis of the support ring 112. Furthermore, the rotating mechanism 18 drives the rotating ring 17 to rotate, thereby causing each jaw 12 connected to the support cylinder 111 to rotate synchronously. This ensures that the inner liner of the hydrogen storage tank is securely clamped and rotated, allowing the inner liner of the hydrogen storage tank to be heated evenly and ensuring high welding quality.

[0039] Please refer to the reference. Figures 4 to 6Specifically, the clamping and turning device 10 also includes a guide mechanism 15, the same number as the grippers 12. Each gripper 12 includes a snap-fit ​​plate 121 and a force transmission plate 122. The snap-fit ​​plate 121 has a snap-fit ​​surface 1211. A pair of guide blocks 152 are fixed at intervals on the side of the support ring 112 facing away from the drive ring 13. A slider 151 is fixed on the side of the force transmission plate 122 facing the support ring 112 and located between the pair of guide blocks 152. A cam follower 154 is connected to the slider 151. A guide groove 153 is located in the drive ring 13 and is inclined relative to the radial direction of the drive ring 13. The guide mechanism 15 includes a slider 151, a pair of guide blocks 152, a guide groove 153, and a cam follower 154. The drive mechanism 14 includes a drive cylinder 141, a drive gear 142, a rack 143, a mounting plate 144, and a fixing plate 145. 143 is fixed to the fixing plate 145, the fixing plate 145 is fixed to the drive ring 13, the mounting plate 144 is fixed to the support ring 112, the drive cylinder 141 is mounted on the mounting plate 144, the drive cylinder 141 is connected to the drive gear 142 and drives it to rotate forward or backward, the drive gear 142 drives the rack 143 to move, thereby driving the drive ring 13 to rotate forward or backward, and then the cam follower 154 drives the slider 151 to slide between a pair of guide blocks 152 under the action of the guide groove 153, thereby correspondingly causing each gripper 12 to move closer or farther away from the central axis of the support ring 112. When each gripper 12 completes to move closer, the clamping surface 1211 of each gripper 12 clamps the inner liner of the hydrogen storage tank. When each gripper 12 completes to move farther away, the inner liner of the hydrogen storage tank clamped by each gripper 12 can be released. Therefore, for each pawl 12, the cam follower 154 can convert the circumferential force from the rotation of the drive ring 13 into a radial force on the guide block 152, thus achieving a stable radial displacement of the pawl 12 relative to the inner liner of the hydrogen storage tank. Furthermore, since the cam follower 154 can efficiently convert the circumferential force from the drive ring 13 into a radial force on the guide block 152, the radial movement of the pawl 12 is smoother and more precise.

[0040] Please refer to the reference. Figure 6 Preferably, the support ring 112 has a pair of communicating stepped grooves 1121 facing the slider 151. The guide block 152 protrudes above the stepped grooves 1121, thus forming a sliding groove 1122 between the guide block 152 and the stepped grooves 1121. The slider 151 includes a pair of protrusions 1511 opposite each other in the radial direction of the support ring 112, and the protrusions 1511 slide in contact with the sliding groove 1122. Since the cam follower 154 can efficiently convert the circumferential force from the drive ring 13 into a radial force on the guide block 152, and by utilizing the sliding contact between the protrusions 1511 and the sliding groove 1122 of the slider 151, the displacement of the slider 151 is more stable and precise, thereby making the radial movement of the chuck 12 more stable and precise.

[0041] Please refer to the reference. Figure 4 Preferably, the force transmission plate 122 is further provided with a reinforcing part 123, which protrudes from both sides of the force transmission plate 122. In this way, the reinforcing part 123 can not only enhance the clamping strength of the clamping surface 1211 of the claw 12, but also improve the reliability of transmitting the force received by the force transmission plate 122 from the cam follower 154.

[0042] Please refer to the reference. Figure 5 and Figure 6 Preferably, the number of grippers 12 is set to 2N, where N is a natural number greater than or equal to 4. In this utility model, N is set to 4, that is, the number of grippers 12 is 8. By setting the number of grippers 12 to an even number of more than 8, the workpiece can obtain multiple uniform clamping forces in the circumferential direction, while avoiding damage caused by excessive clamping force on the workpiece due to insufficient clamping surfaces 1211. A guide mechanism 16 is provided between each of the N guide groove groups formed by two adjacent and non-repeating guide grooves 153 on the drive ring 13. The guide groove groups and the guide mechanisms 16 located therebetween are evenly arranged around the drive ring 13. The guide mechanism 16 includes a guide groove 161, a guide post 162, and a limiting disk 163. The guide groove 161 is located in the drive ring 13 and extends in the radial direction of the drive ring 13. The guide post 162 is inserted into the guide groove 161 and its two ends are connected to the support ring 112 and the limiting disk 163, respectively. The limiting disk 163 slides against the drive disk. Because multiple guide mechanisms 16 are provided, the rotation of the drive ring 13 relative to the support ring 112 is both smooth and does not deflect, ensuring that each gripper 12 reliably receives the force applied by the cam follower 154 acting on it when the drive ring 13 rotates.

[0043] Please refer to the reference. Figure 7Specifically, the infrared heating device 20 includes: a drive bracket 21 with a first support leg 211; an infrared heating component 22 fixedly connected to the drive bracket 21; a first support plate 23 with a first guide rail 231 that slides with the first support leg 211; a moving motor 24 supported on the first support plate 23, the moving motor 24 being drivenly connected to the drive bracket 21 to drive the first support leg 211 to move along the first guide rail 231; a second support plate 28 located below the first support plate 23 with a second guide rail 281, the second guide rail 281 being perpendicular to the first guide rail 231, a second support leg (not shown) that slides with the second guide rail 281 on the side of the first support plate 23 facing the second support plate 28, and driving components 29 on both sides of the second support plate 28 that drive the second support leg to move in opposite directions along the second guide rail 281. Therefore, the infrared heating device 20 can use the moving motor 24 to drive the heating component to move to the heating position in a timely and accurate manner and to move away from the heating position in a timely manner after heating is completed. This gives it the advantages of good effect and high reliability in heating the inner liner of the two hydrogen storage tanks. Moreover, since the position of the infrared heating component 22 along the second guide rail 281 can be adjusted, the infrared heating component 22 can be moved to the heating position more flexibly and accurately.

[0044] Please refer to the reference. Figure 7 Preferably, the driving assembly 29 includes a crank handle 291 and a rocker arm 292 rotatably connected. The rocker arm 292 is threadedly connected to the first support plate 23, and the two rocker arms 292 have opposite threads that are threaded to the first support plate 23. In this way, the position of the infrared heating assembly 22 on the second guide rail 281 can be conveniently and accurately adjusted by operating the corresponding crank handle 291.

[0045] Please refer to the reference. Figure 7 Preferably, the infrared heating device 20 further includes a support plate 25, a fixing plate 26, and a locking component 27. The support plate 25 is fixed to the drive bracket 21, and the plug-in plate 2221 is fixed to the support plate 25. The infrared heating assembly 22 includes a heater 221 and a disassembly frame 222 fixedly connected to the heater 221. The disassembly frame 222 includes a plug-in plate 2221, a first disassembly plate 2222, and a second disassembly plate 2223. The first disassembly plate 2222 is fixedly connected to the plug-in plate 2221, and the second disassembly plate 2223 is fixedly connected to the first disassembly plate 2222 and the heater 221, respectively. The plug-in plate 2221 can be inserted into or removed from the slot of the fixing plate 26. The locking component 27 is used to fix the plug-in plate 2221 in the slot. In this way, the infrared heating assembly 22 is not only easy to disassemble and replace, but also ensures that the infrared heating assembly 22 can be well fixed before and after disassembly.

[0046] Please refer to the reference. Figure 7Preferably, the locking assembly 27 includes a locking plate 271 and a locking post 272. The locking plate 271 has a locking hole and is fixedly connected to the upper end face of the insertion plate 26. The locking post 272 moves vertically in the locking hole to press against the insertion plate 2221 to fix the insertion plate 2221 or to release the pressure on the insertion plate 2221 to allow the insertion plate 2221 to be separated from the insertion plate 26. In this way, the locking post 272 can fix the insertion plate 2221 in the vertical direction and can adapt to fixing the insertion plates 2221 with different heights for different infrared heating assemblies 22.

[0047] Please refer to the reference. Figure 7 Preferably, a handle 223 is provided on the upper surface of both the first disassembly plate 2222 and the second disassembly plate 2223. The handle is used to insert or pull out the plug plate 2221 relative to the slot of the plug plate 26. The handle 223 makes it more convenient to disassemble and assemble the infrared heating component 22.

[0048] Please refer to the reference. Figure 7 Preferably, the first guide rail 231 and the first support leg 211 are both provided as a pair, so that the drive bracket 21 moves more smoothly on the first support plate 23. The drive bracket 21 includes a plurality of support rods 212 forming a rectangular body with one end open. The pair of first support legs 211 are respectively fixed to the bottom end of the pair of support rods 212 corresponding to the long side of the rectangular body. The support plate 25 is fixed perpendicularly to the first guide rail 231 and to the end face of the pair of support rods 212 corresponding to the long side of the rectangular body, so that the structure of the drive bracket 21 is stable. The moving motor 24 passes through the opening of the rectangular body and is driven and connected to the pair of first support legs 211, so that the structure of the infrared heating device 20 is compact.

[0049] Please refer to the reference. Figure 8 and 9Specifically, the cutting device 30 includes: a reciprocating support 31, including a first guide foot 311 and a support plate 312; a cutting blade assembly 32, supported on the support plate 312, the cutting blade assembly 32 including a cutting blade holder 321, a cutting blade motor 324 and a cutting blade 325, the cutting blade motor 324 driving the cutting blade 325 located in the cutting blade holder 321 to rotate; a support plate 33, provided with a first guide rail 331 that slides with the first guide foot 311; and a displacement motor 34, supported on the support plate 33, the displacement motor 34 and the reciprocating support 31 A drive unit is connected to drive the first guide foot 311 to move along the first guide rail 331. A power motor 35, supported on a support plate 312, is driven by a cutter holder 321. The cutter holder 321 has a second guide foot 317, and the support plate 312 has a second guide rail 316. The power motor 35 drives the second guide foot 317 to move the cutter 325 along the second guide rail 316. The cutter 325, driven by the power motor 35, is used to cut the weld seam on the inner liner of the hydrogen storage tank that is rotated by the two clamping devices 10. Since the cutting device 30 can use the displacement motor 34 to drive the reciprocating support 31 to move precisely to the desired cutting position, and is particularly suitable for accurately ensuring the cutting thickness of the cutter 325 on the weld seam, it has the advantages of high accuracy and good quality in cutting the weld seam.

[0050] Please refer to the reference. Figure 9 Preferably, the cutting device 30 further includes a pair of guide mechanisms 36 located opposite each other on both sides of the cutter holder 321. Each guide mechanism 36 includes a support plate 361 and a floating guide wheel 362. The floating guide wheel 362 is rotatably connected to the support plate 361. The floating guide wheel 362 rotates and contacts the inner liner of the hydrogen storage tank before the cutter 325, thus determining the cutting amount of the cutter. Because the floating guide wheel 362 rotates and contacts the inner liner of the hydrogen storage tank before the cutter 325, it prevents the cutter 325 from being accidentally struck by the inner liner of the hydrogen storage tank, and allows the cutter 325 to float along the outer contour of the inner liner of the hydrogen storage tank during the cutting process, ensuring uniform cutting and consistent cutting amount. The cutter holder 321 includes a dust collection hood 323, and the cutting device 30 also includes a vacuum cleaner. The cutter 325 is located in the dust collection hood 323. The vacuum cleaner is connected to the dust collection hood 323 and is used to collect and absorb debris generated by the cutter 325 during cutting. Because the dust collection hood 323 can collect debris in a timely manner, it prevents scattered debris from polluting the environment.

[0051] Please refer to the reference. Figure 9 Preferably, a horizontal brush group 37 and a vertical brush group 38 are provided on the outer wall of the dust collection hood 323. The horizontal brush and the vertical brush abut against the adjacent parts of the part to be cut in the horizontal and vertical directions, respectively. In this way, the horizontal brush group 37 and the vertical brush group 38 can not only prevent debris from overflowing, but also enable the dust collection hood 323 to communicate with the outside atmosphere, thus preventing the dust collection hood 323 from failing to form a circulating air path and thus failing to collect debris.

[0052] Please refer to the reference. Figure 9 Preferably, the horizontal brush group 37 extends at an angle relative to the horizontal plane, and the vertical brush group 38 extends in the vertical direction. The horizontal brush group 37 guides the debris into the dust hood 323 in the inclined direction. In this way, the vertical brush group 38 can prevent the debris from overflowing in the vertical direction, and the horizontal brush group 37 can prevent the debris from overflowing in the horizontal direction while also guiding the debris blocked by it and the vertical brush group 38 into the dust hood 323.

[0053] Please refer to the reference. Figure 8 and Figure 9 Preferably, the reciprocating support 31 includes a reciprocating seat 314 and a positioning plate 315. The bottom surface of the reciprocating seat 314 is provided with a pair of first guide feet 311, and a pair of first guide rails 331 are provided accordingly, so that the reciprocating support 31 moves more smoothly on the support plate 33. The positioning plate 315 is provided with a second guide rail 316, and the side of the support plate 312 facing the positioning plate 315 is provided with a second guide foot 317. By adjusting the sliding position of the second guide foot 317 on the second guide rail 316, the floating guide wheel 362 rotates and abuts against the inner liner of the hydrogen storage tank before the cutter 325, so that the floating guide wheel 362 can be adjusted to roll more accurately against the corresponding desired part of the inner liner of the hydrogen storage tank.

[0054] Please refer to the reference. Figure 8 Preferably, the displacement motor 34 and the power feed motor 35 are arranged in parallel relative to each other, and the cutter motor 324 is arranged perpendicularly relative to the displacement motor 34 and the power feed motor 35 respectively. This layout is reasonable, which can facilitate maintenance and save space. The displacement motor 34 is driven and connected to the support plate 312 between a pair of first guide rails 331, which is conducive to the compact structure of the cutting device 30.

[0055] Please refer to the reference. Figure 3 Specifically, the hydrogen storage tank liner welding and cutting machine 100 includes a frame 60, which includes a base frame 61. The base frame 61 supports each clamping and rotating device 10 and each pressing device 40, 50. The first pressing device 40 includes a first pressing motor 41, a pair of parallel first guide rails 42 and a first pressing frame 43. The first guide rails 42 are mounted on the base frame 61, and the first pressing frame 43 is mounted on the base frame 61 and has a first pressing cylinder 44 installed on it. The first pressing cylinder 44 has a hollow structure. The drive shaft of the first pressing motor 41 drives the first pressing frame 43 to move along the first guide rails 42, so that the first pressing cylinder 44 can press the inner liner of the first hydrogen storage tank and squeeze it towards the inner liner of the second hydrogen storage tank. In this way, the first pressing cylinder 44, driven by the first pressing motor 41, applies force in a timely and accurate manner to press the inner liner of the first hydrogen storage tank against the inner liner of the second hydrogen storage tank, so that the heated end faces of the two inner liners to be welded are squeezed and welded together.

[0056] The frame 60 also includes a side frame 62 connected to the base frame 61. The second pressing device 50 includes a second pressing motor 51, two pairs of parallel second guide rails 52 and a second pressing frame 53. The second guide rails 52 are mounted on the side frame 62. The second pressing frame 53 is slidably supported by the second guide rails 52 and is equipped with a second pressing cylinder 54. The second pressing cylinder 54 has a hollow structure. The second pressing motor 51 drives the second pressing frame 53 to move along the second guide rails 52, so that the second pressing cylinder 54 can press the inner liner of the second hydrogen storage tank against the inner liner of the first hydrogen storage tank. It should be noted that after the extrusion welding is completed, the first pressing cylinder 44 and the second pressing cylinder 54 return to their initial positions respectively. The welded complete inner liner of the hydrogen storage tank can be further moved to the cutting position by the first clamping and rotating device 10 to receive the cutting of the weld by the cutting device 30. In this way, the second pressing cylinder 54, driven by the second pressing motor 51, applies force in a timely and accurate manner to press the inner liner of the second hydrogen storage tank against the inner liner of the first hydrogen storage tank. Thus, the second pressing cylinder 54 and the first pressing cylinder 44 simultaneously and respectively press and weld the inner liners of the two hydrogen storage tanks together, which not only improves the pressing efficiency but also provides a good pressing effect.

[0057] The hydrogen storage tank liner welding and cutting machine 100 also includes a shifting motor 70. The first clamping and rotating device 10 is movably supported on a pair of first guide rails 42. The drive shaft of the shifting motor 70 is driven and connected to the first clamping and rotating device 10. The infrared heating device 20 and the cutting device 30 are arranged on one side of the machine base frame 61. The drive shaft of the shifting motor 70 drives the first hydrogen storage tank liner held by the first clamping and rotating device 10 to move to the heating position corresponding to the infrared heating device 20. The infrared heating component 22 moves between the first clamping and rotating device 10 and the second clamping and rotating device 10. The infrared heating component 22 rotates the first hydrogen storage tank liner that is rotated by the first clamping and rotating device 10 and the second clamping and rotating device 10 respectively. The opposing end faces of the first and second hydrogen storage tank inner liner sections are heated. After the heating operation is completed, the first clamping device 10 and the second clamping device 10 stop rotating. The first pressing cylinder 44 of the first pressing frame 43 and the second pressing cylinder 54 of the second pressing frame 53 press against each other radially, squeezing and welding the first and second hydrogen storage tank inner liner sections to form the hydrogen storage tank inner liner. The hydrogen storage tank inner liner is made of plastic. After the welding operation is completed, the shifting motor 70 drives the first clamping device 10 to move the hydrogen storage tank inner liner to the cutting position corresponding to the cutting device 30. The cutting device 30 cuts the weld seam on the outer circumference of the hydrogen storage tank inner liner. In this way, the heating and welding of the first hydrogen storage tank inner liner section, the cutting of the welded hydrogen storage tank inner liner, and the subsequent handling of the cut hydrogen storage tank inner liner can all be achieved by the accurate drive and shifting of the shifting motor 70, thereby achieving the beneficial effects of high processing efficiency and good processing quality.

[0058] The hydrogen storage tank liner welding and cutting machine 100 also includes a pair of opposing shift cylinders 80 and a pair of opposing shift plates 90. The shift cylinders 80 are supported by the machine side frame 62. The two ends of each shift plate 90 are respectively connected to the second clamping device 10 and a shift cylinder 80. The shift plate 90 is slidably engaged with the second guide rail 52. The piston rod of the shift cylinder 80 drives the second hydrogen storage tank liner held by the second clamping device 10 to move to the heating position. In this way, the heating and welding of the second hydrogen storage tank liner can be achieved by the accurate drive of the second shift motor 70. Thus, the second hydrogen storage tank liner and the first hydrogen storage tank liner can be moved towards each other simultaneously to be spaced apart and heated, and their welding ends can be pressed together to weld them. The two hydrogen storage tank liners can be accurately aligned and welded together, improving processing efficiency.

[0059] Please refer to the reference. Figure 2 and Figure 3 Preferably, the first pressing motor 41 and the second pressing motor 51 both drive the first pressing frame 43 and the second pressing frame 53 respectively along a direction parallel to the first direction; the shifting motor 70 drives the first clamping and rotating device 10 along a direction parallel to the first direction; the moving motor 24 drives the driving bracket 21 along a direction parallel to the second direction; the displacement motor 34 drives the reciprocating bracket 31 along a direction parallel to the second direction; and the power feed motor 35 drives the cutting tool holder 321 along a direction parallel to the second direction. The first direction and the second direction are perpendicular. Therefore, the overall machining displacement coordination is highly accurate, and the machining efficiency is high.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A welding and cutting system for the inner liner of a hydrogen storage tank, characterized in that, include: A welding and cutting machine for the inner liner of a hydrogen storage tank, comprising: The first and second clamping devices, which are opposite to each other, are used to clamp the inner liner of the first hydrogen storage tank and the inner liner of the second hydrogen storage tank, respectively. An infrared heating device includes an infrared heating component, which moves in or out between a first clamping device and a second clamping device. When the infrared heating component moves between the first clamping device and the second clamping device, it heats the respective end faces to be welded in the inner liner of the two hydrogen storage tanks. After the infrared heating assembly moves out between the first clamping device and the second clamping device, the first pressing device and the second pressing device press against the inner liner of the first hydrogen storage tank and the inner liner of the second hydrogen storage tank respectively, pressing them against each other so that the end faces to be welded are welded together, thereby obtaining a complete inner liner of the hydrogen storage tank. A cutting device is used to cut the weld seam on the outer periphery of the inner liner of the hydrogen storage tank; The welding and cutting system for the inner liner of the hydrogen storage tank also includes: The feeding device is used to input the first hydrogen storage tank inner liner and the second hydrogen storage tank inner liner into the welding cutting machine of the hydrogen storage tank inner liner and to output the hydrogen storage tank inner liner. The robot is used to respectively grip the inner liner of the first hydrogen storage tank and the inner liner of the second hydrogen storage tank input by the feeding device so that they can be gripped by the first clamping and rotating device and the second clamping and rotating device respectively, and to grip the inner liner of the hydrogen storage tank after it has been cut by the cutting device so that it can be output by the feeding device.

2. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 1, characterized in that, The feeding device includes a first conveying mechanism and a second conveying mechanism aligned with each other along a first direction and having a space between them. The first conveying mechanism includes a first material support bracket and a first conveyor belt. The second conveying mechanism includes a second material support bracket and a second conveyor belt. The robot is arranged in the space between them. The first conveyor belt conveys the inner liner of the first hydrogen storage tank and the inner liner of the second hydrogen storage tank towards the robot along the first direction. The second conveyor belt conveys the inner liner of the hydrogen storage tank away from the robot along the first direction.

3. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 2, characterized in that, The hydrogen storage tank inner liner welding and cutting machine includes a frame, which includes a base frame and side frames. The robot and the feeding device are located on a first side of the base frame, and the cutting device and the heating device are located on a second side of the base frame opposite to the first side. The heating device and the cutting device are spaced apart from the interval space.

4. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 1, characterized in that, The robot includes a robotic arm and two vacuum adsorption devices connected to the robotic arm. Each vacuum adsorption device includes a fixed support plate and multiple vacuum suction cups disposed on the fixed support plate. The two fixed support plates are parallel to the central axis of the inner liner of the hydrogen storage tank or the inner liner of the hydrogen storage tank. The two fixed support plates are inclined with respect to the horizontal plane passing through the central axis and symmetrical with respect to the vertical plane passing through the central axis. Each vacuum suction cup on each fixed support plate applies a vacuum adsorption force to the inner liner of the hydrogen storage tank or the outer periphery of the inner liner of the hydrogen storage tank along the central axis.

5. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 2, characterized in that, The welding and cutting system for the inner liner of the hydrogen storage tank also includes four guardrails forming a hollow rectangular tetrahedron. On a pair of opposite guardrails, there are guardrail inlets for the first conveyor belt to pass through and guardrail outlets for the second conveyor belt to pass through.

6. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 1, characterized in that, Both the first clamping and rotating device and the second clamping and rotating device include: The support frame includes a hollow support cylinder and a support ring protruding from the outer periphery of one end of the support cylinder, wherein the inner liner of the first hydrogen storage tank or the inner liner of the second hydrogen storage tank is located at intervals within the support cylinder; Multiple grippers are arranged on the support ring circumferentially and can move radially along the support ring. Each gripper has a clamping surface facing the central axis of the support ring, and the clamping surface of each gripper has a contour adapted to the inner liner of the first hydrogen storage tank or the inner liner of the second hydrogen storage tank. The drive ring is connected to the support ring; A drive mechanism drives the drive ring to rotate, thereby driving each of the grippers to move closer or further away from the support ring along the radial direction of the support ring and relative to the central axis of the support ring. A rotating ring is fixedly connected to the support cylinder; A rotating mechanism drives the rotating ring to rotate, thereby enabling the rotating ring to drive the inner liner of one of the hydrogen storage tanks held by the grippers to rotate around the central axis of the support ring. The outer ring of the rotating ring is provided with a driven gear; The rotating mechanism includes a rotating motor and a driving gear. The driving gear meshes with the driven gear. The rotating motor drives the driving gear to rotate, thereby causing the support ring to rotate, and thus the multiple grippers rotate synchronously with the support ring. The infrared heating component has two heating surfaces.

7. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 1, characterized in that, The infrared heating device includes: The drive bracket is equipped with a first support leg; The infrared heating component is fixedly connected to the drive bracket; The first support plate is provided with a first guide rail that slides in cooperation with the first support leg; A movable motor is supported on the first support plate, and the movable motor is driven to be connected to the drive bracket to drive the first support leg to move along the first guide rail; The second support plate, located below the first support plate, is provided with a second guide rail, which is perpendicular to the first guide rail. The side of the first support plate facing the second support plate is provided with a second support foot that slides with the second guide rail. On both sides of the second support plate, there are drive components that drive the second support foot to move in opposite directions along the second guide rail.

8. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 7, characterized in that, The cutting device includes: The reciprocating support includes a first guide foot and a shift plate; A cutting blade assembly is supported on the support plate. The cutting blade assembly includes a cutting blade holder, a cutting blade motor, and a cutting blade. The cutting blade motor drives the cutting blade located in the cutting blade holder to rotate. The support plate is provided with a first guide rail that slides with the first guide foot; A displacement motor is supported on the support plate, and the displacement motor is driven to drive the first guide foot to move along the first guide rail. A power feed motor is supported on the support plate. The power feed motor is connected to the cutter holder. The cutter holder is provided with a second guide foot. The support plate is provided with a second guide rail. The power feed motor drives the second guide foot to move the cutter along the second guide rail. The cutter is used to cut the weld seam on the inner liner of the hydrogen storage tank that is rotated by the two clamping devices under the drive of the power feed motor.

9. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 8, characterized in that, The hydrogen storage tank liner welding and cutting machine includes a frame, which includes a base frame supporting various clamping and rotating devices and various pressing devices. The first pressing device includes a first pressing motor, a pair of parallel first guide rails, and a first pressing frame. The first guide rails are mounted on the base frame, and the first pressing frame is mounted on the base frame and has a first pressing cylinder installed. The drive shaft of the first pressing motor drives the first pressing frame to move along the first guide rails, thereby pressing the first pressing cylinder against the inner liner of the first hydrogen storage tank and squeezing it towards the inner liner of the second hydrogen storage tank. The frame also includes a side frame connected to the base frame. The second pressing device includes a second pressing motor, two pairs of parallel second guide rails, and a second pressing frame. The second guide rails are mounted on the side frame, and the second pressing frame is slidably supported by the second guide rails and has a second pressing cylinder installed. The second pressing motor drives the second pressing frame to move along the second guide rails, thereby pressing the second pressing cylinder against the inner liner of the second hydrogen storage tank. The pressure cylinder can press the inner liner of the second hydrogen storage tank against the inner liner of the first hydrogen storage tank; the hydrogen storage tank inner liner welding and cutting machine also includes a shifting motor, the first clamping and rotating device is movably supported on a pair of first frame guide rails, the drive shaft of the shifting motor is driven and connected to the first clamping and rotating device, the infrared heating device and the cutting device are arranged on one side of the machine base frame, the drive shaft of the shifting motor drives the inner liner of the first hydrogen storage tank held by the first clamping and rotating device to move to the heating position corresponding to the infrared heating device; the hydrogen storage tank inner liner welding and cutting machine also includes a pair of opposing shifting cylinders and a pair of opposing shifting plates, the shifting cylinders are supported by the machine side frame, the two ends of each shifting plate are respectively connected to the second clamping and rotating device and a shifting cylinder, the shifting plate slides with the second guide rail, the piston rod of the shifting cylinder drives the inner liner of the second hydrogen storage tank held by the second clamping and rotating device to move to the heating position.

10. The welding and cutting system for the inner liner of a hydrogen storage tank according to claim 9, characterized in that, The first and second pressure motors drive the first and second pressure frames respectively in a direction parallel to the first direction. The shifting motor drives the first clamping and rotating device in a direction parallel to the first direction. The moving motor drives the driving bracket in a second direction. The displacement motor drives the reciprocating bracket in a direction parallel to the second direction. The power feed motor drives the cutter frame in a direction parallel to the second direction. The first direction is perpendicular to the second direction.

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