An automated production line for manufacturing cylinder sections of pressure vessels

Abstract

The present invention discloses an automated production line for manufacturing cylinder sections of pressure vessels, including a steel plate feeding trolley, a steel plate feeding mechanism, a plate rolling machine, a spot welding device for assembling a cylinder section longitudinal seam and an arc-extinguishing plate, a cylinder section longitudinal seam welding machine, an arc-extinguishing plate cutting device, a cylinder section teaming conveying device, and a mechanical arm cylinder section transfer device; the steel plate feeding mechanism transfers the steel plate to the plate rolling machine, and the mechanical arm cylinder section transfer device transfers the cylinder section processed by the plate rolling machine between the spot welding device for assembling a cylinder section longitudinal seam and an arc-extinguishing plate, a cylinder section longitudinal seam welding machine, an arc-extinguishing plate cutting device, and a cylinder section teaming conveying device to sequentially complete each processing procedure. The production line of the present invention realizes the automatic completion of the process from cylinder section feeding - cylinder section initial rolling - cylinder section longitudinal seam assembly spot welding - cylinder section arc-extinguishing plate assembly spot welding - cylinder section longitudinal seam welding - cylinder section cutting arc-extinguishing plates at both ends - cylinder section rewinding - cylinder section teaming on the production line, without relying on a crane, thus realizing automated or semi-automated production to the maximum extent.

Description

Technical Field

[0001] The invention belongs to the technical field of pressure vessel manufacturing, and in particular relates to an automated production line for manufacturing cylinder sections of pressure vessels. Background Art

[0002] For the manufacturing of cylinder sections of pressure vessels, especially stainless steel pressure vessels, the process flow from cylinder section loading - cylinder section initial rolling - cylinder section longitudinal seam assembly spot welding - cylinder section arc extinguishing plate assembly spot welding - cylinder section longitudinal seam welding - cylinder section cutting arc extinguishing plates at both ends - cylinder section rewinding - cylinder section teaming, etc., usually uses crane lifting to transfer the cylinder sections and manual operation to perform related process operations. Due to excessive reliance on crane lifting and manual operation, the production efficiency is low, more human resources are consumed and more production space is occupied. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects and to provide an automated production line for the manufacture of cylinder sections of pressure vessels, which is particularly suitable for the manufacture of cylinder sections of thin-walled pressure vessels. For thin-walled containers of different lengths and diameters, the process from cylinder section loading - initial cylinder section rolling - cylinder section longitudinal seam assembly spot welding - cylinder section arc-extinguishing plate assembly spot welding - cylinder section longitudinal seam welding - cylinder section cutting of arc-extinguishing plates at both ends - cylinder section rewinding - cylinder section teaming can be automatically completed on the production line without relying on a crane, thereby realizing automated or semi-automated production to the maximum extent.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An automated production line for manufacturing cylinder sections of pressure vessels, comprising a steel plate feeding trolley, a steel plate feeding mechanism, a plate rolling machine, a cylinder section longitudinal seam and arc-initiating plate assembly spot welding device, a cylinder section longitudinal seam welding machine, an arc-initiating plate cutting device, a cylinder section group conveying device, and a mechanical arm cylinder section transfer device;

[0006] The steel plate feeding mechanism transfers the steel plate loaded on the steel plate feeding trolley to the plate rolling machine, and the robotic arm cylinder segment transfer device transfers the cylinder segment processed by the plate rolling machine between the cylinder segment longitudinal seam and arc-extinguishing plate assembly spot welding device, cylinder segment longitudinal seam welding machine, arc-extinguishing plate cutting device and cylinder segment team conveying device to complete each processing procedure in sequence.

[0007] Furthermore, the plate rolling machine comprises a plate rolling machine feed frame and a plate rolling actuator, a passive roller is installed on the plate rolling machine feed frame, two-side extrusion centering mechanisms are installed on both sides of the plate rolling machine feed frame to adjust the position of the steel plate on the passive roller, and a steel plate tail pushing mechanism is installed in the middle of the plate rolling machine feed frame to push the steel plate on the passive roller to the plate rolling actuator of the plate rolling machine;

[0008] The steel plate feeding trolley is arranged on a steel plate feeding trolley track, and the steel plate feeding trolley track is arranged in the activity area of ​​the steel plate feeding mechanism, and the steel plate feeding trolley can move in and out along the steel plate feeding trolley track;

[0009] The steel plate feeding mechanism includes a guide rail arranged on the frame, and the guide rail arranged on the frame is arranged across the feed rack of the plate rolling machine. Two sets of connecting frame horizontal and lifting drive mechanisms are installed on the guide rail arranged on the frame. A vacuum suction cup connecting frame is arranged below the horizontal and lifting drive mechanism of the connecting frame. The horizontal and lifting drive mechanism of the connecting frame drives the vacuum suction cup connecting frame to move up and down and translationally. A plurality of vacuum suction cups are arranged below the vacuum suction cup connecting frame. The vacuum suction cups absorb the steel plate from the steel plate feeding trolley, and the steel plate is placed on the passive roller track of the feed rack of the plate rolling machine by utilizing the horizontal and lifting drive mechanism of the connecting frame.

[0010] Furthermore, a translation guide rail and a translation trolley are provided on the side of the plate rolling machine, the translation trolley runs on the translation guide rail, the arc-extinguishing plate cutting device is installed on the translation trolley, and the arc-extinguishing plate cutting device consists of a frame, a cylinder section rotation drive mechanism installed on both sides of the frame, a horizontal moving device installed at both ends of the frame, an up and down vertical moving feed device installed on the horizontal moving device, and a circular saw installed on the up and down vertical moving feed device.

[0011] Furthermore, extrusion devices are installed on both sides of the cylinder section on both sides of the frame, and the spot welding device for assembling the longitudinal seam of the cylinder section and the arc-extinguishing plate is arranged at one end of the translation guide rail. The spot welding device for assembling the longitudinal seam of the cylinder section and the arc-extinguishing plate includes a column and a lifting guide rail and a lifting platform running on the column and the lifting guide rail, a welding robot is installed on the lifting platform, a cross beam is installed at the end of the lifting platform, a sensor is provided under the cross beam, a guide groove is provided on the cross beam, and horizontal extrusion devices are respectively installed at both ends of the cross beam, the horizontal extrusion device can move along the guide groove on the cross beam, and upper and lower clamping devices and an arc-extinguishing plate loading device are installed at the end of the horizontal extrusion device.

[0012] Furthermore, the production line also includes a cylinder segment buffer storage device, which is arranged on the side of the cylinder segment longitudinal seam and the arc-initiating and extinguishing plate assembly spot welding device, and the cylinder segment buffer storage device consists of a cylinder segment storage rack and a translation slide.

[0013] Furthermore, the barrel segment teaming conveying device includes a barrel segment teaming translation guide rail, a barrel segment teaming translation trolley and a barrel segment teaming active conveying roller. The barrel segment teaming translation trolley runs on the barrel segment teaming translation guide rail. The barrel segment teaming translation trolley is equipped with an active conveying roller. The barrel segment teaming active conveying roller is arranged at one end of the barrel segment teaming translation guide rail and is perpendicular to the barrel segment teaming translation guide rail. The barrel segment teaming translation trolley can be connected to the barrel segment teaming active conveying roller.

[0014] Furthermore, a cylinder segment longitudinal seam welding translation guide rail and a cylinder segment longitudinal seam welding translation trolley are arranged on the side of the cylinder segment group conveying device, the direction of the cylinder segment longitudinal seam welding translation guide rail is the same as the direction of the roller axis line on the plate rolling machine, the cylinder segment longitudinal seam welding translation trolley runs on the cylinder segment longitudinal seam welding translation guide rail, a cylinder segment rotation driving device is installed on the cylinder segment longitudinal seam welding translation trolley, and the cylinder segment longitudinal seam welding machine is arranged at one end of the cylinder segment longitudinal seam welding translation guide rail.

[0015] Furthermore, the robot arm barrel segment transfer device is composed of a guide rail arranged on a cantilever frame, a robot arm horizontal and lifting drive mechanism running thereon, and a barrel segment transfer robot arm.

[0016] Furthermore, a rectangular channel penetrating vertically is provided on the crossbeam along the length direction, the guide groove is provided on the inner side walls on both sides of the channel, and a cylinder mounting support is provided at each end of the guide groove, and the cylinder mounting support can slide in the guide groove;

[0017] The horizontal extrusion device comprises an extrusion cylinder, the front flange of the extrusion cylinder is connected to the cylinder supports located at both ends of the cross beam, the cylinder rod of the extrusion cylinder is connected to one end of the cylinder mounting support, the extrusion cylinder drives the cylinder mounting support to slide in the guide groove close to the cylinder section, and the plane at the other end of the cylinder mounting support extrudes the two ends of the cylinder section to eliminate the axial misalignment on both sides of the longitudinal seam of the cylinder section;

[0018] The upper and lower clamping devices include two clamping cylinders, an upper pressure plate, a lower pressure plate, a guide column and a guide sleeve. The clamping cylinders are respectively arranged at the upper and lower ends of the cylinder mounting support. The cylinder rods of the clamping cylinders are respectively connected to the upper pressure plate and the lower pressure plate. Two guide columns are respectively installed on the upper pressure plate and the lower pressure plate. A guide sleeve matching the guide column is installed on the cylinder mounting support. The contact parts of the upper pressure plate and the lower pressure plate with the cylinder section adopt an arc surface structure. The clamping cylinders respectively drive the upper pressure plate and the lower pressure plate to move closer to each other, and squeeze the cylinder section in the radial direction to eliminate the radial misalignment of the longitudinal seam of the cylinder section.

[0019] Furthermore, the arc-extinguishing plate loading device is arranged on the lower surface of the lower pressure plate, and the arc-extinguishing plate loading device comprises a magazine-type arc-extinguishing plate storage bin, a cylinder lifting device, a guide cylinder and a guide movable cover plate, and the upper end surface and the lower end surface of the magazine-type arc-extinguishing plate storage bin are both provided with openings, and the arc-extinguishing plates are horizontally stacked in the magazine-type arc-extinguishing plate storage bin;

[0020] A rectangular through hole is provided on the lower pressure plate, and the upper end surface of the magazine-type arc-extinguishing plate storage bin is inserted into the rectangular through hole. The cylinder lifting device is arranged below the magazine-type arc-extinguishing plate storage bin, and a top plate is provided at the movable end of the cylinder lifting device. The top plate is connected to the magazine-type arc-extinguishing plate storage bin and the arc-extinguishing plate therein, and the cylinder lifting device drives the magazine-type arc-extinguishing plate storage bin and the arc-extinguishing plate therein to move upward;

[0021] The guide cylinder is arranged on the lower surface of the lower pressure plate, and the guide cylinder drives the cartridge-type arc-initiating and extinguishing plate storage bin to move horizontally, so that the uppermost arc-initiating and extinguishing plate is closely attached to the end surface of the longitudinal seam of the cylinder section;

[0022] The guide movable cover plate is arranged on the upper pressure plate, and the guide movable cover plate can slide along the upper pressure plate. A groove is opened in the middle of the upper pressure plate to expose the longitudinal seam of the cylinder section; locking bolts are arranged on both sides of the guide movable cover plate, and a distance bolt is arranged in the middle. The guide movable cover plate is removed, and the magazine-type arc-extinguishing plate storage bin is inserted upward into the rectangular through hole on the lower pressure plate, the guide movable cover plate is reset and fixed with the locking bolt, and the distance bolt is adjusted to make the uppermost arc-extinguishing plate flush with the upper surface of the longitudinal seam of the cylinder section.

[0023] The beneficial effects of the present invention are:

[0024] 1. The production line of the present invention is particularly suitable for the manufacture of thin-walled pressure vessel cylinder sections. For thin-walled containers of different lengths and diameters, the process from cylinder section loading - cylinder section initial rolling - cylinder section longitudinal seam assembly spot welding - cylinder section arc-extinguishing plate assembly spot welding - cylinder section longitudinal seam welding - cylinder section cutting of arc-extinguishing plates at both ends - cylinder section rewinding - cylinder section teaming can be automatically completed on the production line without relying on a crane, thereby realizing automated or semi-automated production to the maximum extent.

[0025] 2. The production line of the present invention can improve the manufacturing quality and efficiency of cylinder segments and save manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the production line of the present invention;

[0027] Figure 2 It is a partial structural schematic diagram of the plate rolling machine, the plate rolling machine feed frame and the steel plate feeding mechanism in the production line of the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of the spot welding device for assembling the longitudinal seam of the cylinder section and the arc-initiating and extinguishing plate ... cutting device in the production line of the present invention;

[0029] Figure 4 yes Figure 3 A schematic diagram of the structure of the intermediate translation trolley and the corresponding devices installed on the translation trolley;

[0030] Figure 5 yes Figure 3 Schematic diagram of the structure of the middle horizontal extrusion device, the upper and lower clamping devices and the arc-initiating and extinguishing plate loading device;

[0031] Figure 6 yes Figure 3 Schematic diagram of the working state structure of the middle horizontal extrusion device and the upper and lower clamping devices;

[0032] Figure 7 yes Figure 3 Schematic diagram of the structure of the middle arc extinguishing plate assembled on the cylinder section;

[0033] Figure 8 yes Figure 3 Schematic diagram of the structure of the storage bin of the arc-initiating and arc-extinguishing plates;

[0034] Fig. 9 It is a partial structural schematic diagram of a mechanical arm barrel segment transfer device and a barrel segment buffer storage device in the production line of the present invention;

[0035] Fig.10 A schematic diagram of the partial structure of a cylinder segment longitudinal seam welding machine and a cylinder segment group conveying device in the production line of the present invention;

[0036] Among them: 1. Steel plate feeding trolley; 2. Steel plate feeding trolley track; 3. Steel plate feeding mechanism; 3a. Guide rails set on the frame; 3b. Vacuum suction cup; 3c. Vacuum suction cup connecting frame; 3d. Horizontal and lifting drive mechanism of connecting frame; 4. Plate rolling machine; 4a. Upper roller support and turning arm; 5. Plate rolling machine feeding frame; 5a. Passive roller; 5b. Extrusion centering mechanism on both sides; 5c. Steel plate tail pushing mechanism; 6. Translation guide rail; 7. Translation trolley; 8. Arc extinguishing plate cutting device; 8a. Frame; 8b. Cylinder section rotation drive Mechanism; 8b-1, active roller; 8b-2, active roller driving mechanism; 8c, circular saw; 8d, horizontal moving device; 8e, up and down vertical moving feeding device; 9, spot welding device for assembly of longitudinal seam of cylinder section and arc extinguishing plate; 9a, column and lifting guide rail; 9b, lifting platform; 9c, welding robot; 9d, crossbeam; 9d-1, guide groove; 9e, horizontal extrusion device; 9e-1, extrusion cylinder; 9f, up and down clamping device; 9f-1, clamping cylinder; 9f-2, upper pressure plate; 9f-3, lower pressure plate; 9f-4 , guide column; 9f-5, guide sleeve; 9g, arc-extinguishing plate loading device; 9g-1, magazine-type arc-extinguishing plate storage bin; 9g-2, cylinder lifting device; 9g-3, guide cylinder; 9g-4, guide movable cover plate; 9g-5, locking bolt; 9g-6, distance bolt; 9h, cylinder section extrusion device on both sides; 9h-1, extrusion wheel; 9h-2, extrusion wheel driving mechanism; 9i, cylinder mounting support; 9i-1, boss; 10, mechanical arm cylinder section transfer device; 10a, guide rail arranged on the cantilever frame; 10b, Robot arm horizontal and lifting drive mechanism; 10c, cylinder segment transfer robot arm; 11, cylinder segment buffer storage device; 11a, cylinder segment storage rack; 11b, translation slide; 12, cylinder segment group translation guide rail; 13, cylinder segment group translation trolley; 13a, active conveying roller, 14, cylinder segment group active conveying roller; 15, cylinder segment longitudinal seam welding translation guide rail; 16, cylinder segment longitudinal seam welding trolley; 16a, cylinder segment rotation drive device; 17, cylinder segment longitudinal seam welding machine; 18, cylinder segment; 18a, arc extinguishing plate; 18b, cylinder segment longitudinal seam. DETAILED DESCRIPTION

[0037] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments. The present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that this disclosure will be thorough and complete, and the concept of the present invention will be fully conveyed to those skilled in the art, and the present invention will only be limited by the claims.

[0038] like Figure 1-10As shown, an automated production line for manufacturing cylinder sections of pressure vessels includes a steel plate feeding trolley 1, a steel plate feeding mechanism 3, a plate rolling machine 4, a cylinder section longitudinal seam and arc-extinguishing plate assembly spot welding device 9, a cylinder section longitudinal seam welding machine 17, an arc-extinguishing plate cutting device 8, a cylinder section team conveying device and a robotic arm cylinder section transfer device 10.

[0039] The steel plate loading mechanism 3 transfers the steel plate loaded on the steel plate feeding trolley 1 to the plate rolling machine 4, and the robotic arm cylinder segment transfer device 10 transfers the cylinder segment processed by the plate rolling machine 4 between the cylinder segment longitudinal seam and arc-extinguishing plate assembly spot welding device 9, the cylinder segment longitudinal seam welding machine 17, the arc-extinguishing plate cutting device 8 and the cylinder segment team conveying device to complete each processing step in sequence.

[0040] As one embodiment, the robot arm barrel segment transfer device 10 is composed of a guide rail 10a arranged on a cantilever frame, a robot arm horizontal and lifting drive mechanism 10b running thereon, and a barrel segment transfer robot arm 10c.

[0041] The production line of the present application also includes a control system, which is electrically connected to each actuator and is used to control the start and stop of the drive device on each actuator to achieve automated or semi-automated production of the production line.

[0042] Furthermore, the plate rolling machine 4 is a CNC plate rolling machine, which includes a plate rolling machine feed frame 5 and a plate rolling actuator. The plate rolling machine feed frame 5 is arranged at the front end of the plate rolling actuator, and a passive roller 5a is installed on the plate rolling machine feed frame 5. The plate rolling actuator is provided with an upper roller support and a flip arm 4a, and the upper roller is arranged on the upper roller support and the flip arm 4a. The two-side extrusion centering mechanism 5b is installed on both sides of the plate rolling machine feed frame 5 to adjust the position of the steel plate on the passive roller 5a, and the steel plate tail pushing mechanism 5c is installed in the middle of the plate rolling machine feed frame 5 to push the steel plate on the passive roller 5a to the plate rolling actuator of the plate rolling machine 4. Specifically, the action of the two-side extrusion centering mechanism 5b and the steel plate tail pushing mechanism 5c on the steel plate is the front-end process of the plate rolling actuator to roll the steel plate. The extrusion centering mechanism 5b on both sides and the steel plate tail pushing mechanism 5c can adopt a variety of structures to complete the operation process. For example, the extrusion centering mechanism 5b on both sides can use a cylinder to push the push plate to center the steel plate on the passive raceway 5a, and the steel plate tail pushing mechanism 5c can use a motor to drive the gear rack to act on the lever structure to act on the tail of the steel plate, and push the steel plate to the rolling actuator of the rolling machine 4.

[0043] Preferably, a plurality of steel plate storage racks are used below the steel plate feeding mechanism 3 and beside the plate rolling machine feed rack 5 to store steel plates of different specifications.

[0044] The steel plate feeding trolley 1 is arranged on the steel plate feeding trolley track 2, and the steel plate feeding trolley track 2 is arranged in the activity area of ​​the steel plate feeding mechanism 3, and the steel plate feeding trolley 1 can move in and out along the steel plate feeding trolley track 2.

[0045] As one embodiment, the steel plate feeding trolley 1 can be configured as an omnidirectional AGV flatbed vehicle to realize steel plate feeding.

[0046] The steel plate feeding mechanism 3 includes a guide rail 3a arranged on the frame, and the guide rail 3a arranged on the frame is arranged across the feeding rack 5 of the plate rolling machine. Two sets of connecting frame horizontal and lifting drive mechanisms 3d are installed on the guide rail 3a arranged on the frame. A vacuum suction cup connecting frame 3c is arranged below the connecting frame horizontal and lifting drive mechanism 3d. The connecting frame horizontal and lifting drive mechanism 3d drives the vacuum suction cup connecting frame 3c to move up and down and translate. A number of vacuum suction cups 3b are suspended below the vacuum suction cup connecting frame 3c. The vacuum suction cups 3b absorb the steel plate from the steel plate feeding trolley 1, and the steel plate is placed on the passive roller 5a of the feeding rack 5 of the plate rolling machine by utilizing the connecting frame horizontal and lifting drive mechanism 3d.

[0047] Furthermore, a translation guide rail 6 and a translation trolley 7 are provided on the side of the plate rolling machine 4 (next to the upper roller support and the turning arm 4a), the translation trolley 7 runs on the translation guide rail 6, and the arc-extinguishing plate cutting device 8 is installed on the translation trolley 7. The arc-extinguishing plate cutting device 8 consists of a frame 8a, a cylinder section rotation drive mechanism 8b installed on both sides of the frame 8a, a horizontal moving device 8d installed at both ends of the frame 8a, an up and down vertical moving feeding device 8e installed on the horizontal moving device 8d, and a circular saw 8c installed on the up and down vertical moving feeding device 8e.

[0048] Specifically, the cylinder segment rotation drive mechanism 8b includes an active roller 8b-1 and an active roller drive mechanism 8b-2. The cylinder segment 18 is arranged above the active roller 8b-1. The active roller 8b-1 plays a role in supporting the cylinder segment 18. The active roller drive mechanism 8b-2 drives the active roller 8b-1 to rotate, thereby driving the cylinder segment 18 to rotate. When performing the spot welding process of the cylinder segment longitudinal seam and the arc-extinguishing plate assembly, the active roller drive mechanism 8b-2 drives the active roller 8b-1 to rotate, drives the cylinder segment 18 to rotate, and rotates the cylinder segment longitudinal seam 18b of the cylinder segment 18 to the top. When performing the arc-extinguishing plate 18a cutting process, the active roller drive mechanism 8b-2 drives the active roller 8b-1 to rotate, drives the cylinder segment 18 to rotate, and rotates the cylinder segment longitudinal seam 18b of the cylinder segment 18 to the bottom.

[0049] The horizontal moving device 8d is arranged at both ends of the frame 8a, the up-down vertical moving feeding device 8e is installed at the movable end of the horizontal moving device 8d, and the circular saw 8c is installed at the movable end of the up-down vertical moving feeding device 8e.

[0050] Preferably, the horizontal moving device 8d and the up-and-down vertical moving feeding device 8e are also provided with a guide component to guide the movement of the horizontal moving device 8d and the up-and-down vertical moving feeding device 8e.

[0051] The vertical moving feeding device 8e is also equipped with a fixed distance backing. The horizontal moving devices 8d at both ends of the frame drive the vertical moving feeding device 8e, the circular saw 8c and the fixed distance backing to approach the two ends of the barrel section 18 until the fixed distance backing squeezes the two ends of the barrel section 18, and the vertical moving feeding device 8e is started to drive the circular saw 8c to move downward, and the arc striking and extinguishing plates 18a at the two ends of the barrel section 18 are cut under the guidance of the fixed distance backing, and the cutting of the arc striking and extinguishing plates 18a is completed.

[0052] Furthermore, the two sides of the frame 8a are equipped with extrusion devices 9h on both sides of the barrel segment. The extrusion devices 9h on both sides of the barrel segment include an extrusion wheel 9h-1 and an extrusion wheel driving mechanism 9h-2. The frame 8a is provided with an extrusion wheel mounting bracket and an extrusion wheel driving mechanism mounting bracket. The extrusion wheel mounting bracket is rotatably connected to the frame 8a. The fixed end of the extrusion wheel driving mechanism 9h-2 is arranged on the extrusion wheel driving mechanism mounting bracket, and the movable end is arranged on the extrusion wheel mounting bracket. The extrusion wheel 9h-1 is arranged on the extrusion wheel mounting bracket. The extrusion wheel driving mechanism 9h-2 drives the two extrusion wheel mounting brackets to close together, thereby extruding the barrel segment 18 and closing the barrel segment longitudinal seam 18b.

[0053] The spot welding device 9 for assembling the longitudinal seam of the cylinder section and the arc-extinguishing plate is arranged at one end of the translation guide rail 6. The spot welding device 9 for assembling the longitudinal seam of the cylinder section and the arc-extinguishing plate includes a column and a lifting guide rail 9a and a lifting platform 9b running on the column and the lifting guide rail 9a. The connection method between the lifting platform 9b and the column and the lifting guide rail 9a includes but is not limited to the following two methods: (1) The lifting platform 9b uses a motor and a reducer to drive the screw nut to drive the slide plate on the lifting platform 9b to move up and down on the surface of the column and the lifting guide rail 9a. (2) The lifting platform 9b uses a motor and a reducer to drive the gear rack to drive the slide plate on the lifting platform 9b to move up and down on the surface of the column and the lifting guide rail 9a.

[0054] A welding robot 9c is installed on the lifting platform 9b. The welding robot 9c completes the spot welding operation on the longitudinal seam 18b of the upper cylinder section 18 and the arc striking and extinguishing plate 18a through the groove provided in the middle of the upper pressing plate 9f-2.

[0055] A beam 9d is installed at the end of the lifting platform 9b, and a sensor is installed under the beam 9d. When the lifting platform 9b moves downward, the beam 9d contacts the cylinder segment 18 and the sensor sends a signal to stop the downward movement, and the beam 9d reaches the working position. A guide groove 9d-1 is provided on the beam 9d, and horizontal extrusion devices 9e are installed at both ends of the beam 9d. The horizontal extrusion device 9e can move along the guide groove 9d-1 on the beam 9d, and the upper and lower clamping devices 9f and the arc-extinguishing plate filling device 9g are installed at the ends of the horizontal extrusion device 9e.

[0056] As one of the embodiments, a rectangular channel running vertically through the crossbeam 9d is provided along the length direction, and a guide groove 9d-1 is provided on the inner side walls on both sides of the channel. A cylinder mounting support 9i is provided at each end of the guide groove 9d-1, and the cylinder mounting support 9i can slide in the guide groove 9d-1.

[0057] The horizontal extrusion device 9e includes an extrusion cylinder 9e-1, the front flange of the extrusion cylinder 9e-1 is connected to the cylinder supports located at both ends of the cross beam 9d, the cylinder rod of the extrusion cylinder 9e-1 is connected to one end of the cylinder mounting support 9i, the extrusion cylinder 9e-1 drives the cylinder mounting support 9i to slide in the guide groove 9d-1 close to the cylinder section, and the two ends of the plane extrusion cylinder section 18 at the other end of the cylinder mounting support 9i eliminate the axial misalignment on both sides of the cylinder section longitudinal seam 18b;

[0058] The upper and lower clamping devices 9f include two clamping cylinders 9f-1, an upper pressure plate 9f-2, a lower pressure plate 9f-3, a guide column 9f-4 and a guide sleeve 9f-5. The clamping cylinder 9f-1 is respectively arranged at the upper and lower ends of the cylinder mounting support 9i. The cylinder rod of the clamping cylinder 9f-1 is respectively connected to the upper pressure plate 9f-2 and the lower pressure plate 9f-3. Two guide columns 9f-4 are respectively installed on the upper pressure plate 9f-2 and the lower pressure plate 9f-3. A guide sleeve 9f-5 cooperating with the guide column 9f-4 is installed on the cylinder mounting support 9i. The contact parts between the upper pressure plate 9f-2 and the lower pressure plate 9f-3 and the barrel section adopt an arc surface structure. The clamping cylinder 9f-1 drives the upper pressure plate 9f-2 and the lower pressure plate 9f-3 to move closer to each other, and extrude the barrel section 18 in the radial direction to eliminate the radial misalignment of the barrel section longitudinal seam 18b.

[0059] Specifically, the cylinder mounting support 9i is a rectangular structure with five end faces, and its upper and lower end faces are used to install the clamping cylinder 9f-1. The two end faces in contact with the guide groove 9d-1 on the beam 9d are provided with a boss 9i-1 that cooperates with the guide groove 9d-1, and the end face located on the outside is used to install the extrusion cylinder 9e-1.

[0060] The arc-extinguishing plate loading device 9g is arranged on the lower surface of the lower pressure plate 9f-3. The arc-extinguishing plate loading device 9g includes a magazine-type arc-extinguishing plate storage bin 9g-1, a cylinder lifting device 9g-2, a guide cylinder 9g-3 and a guide movable cover plate 9g-4. The upper end surface and the lower end surface of the magazine-type arc-extinguishing plate storage bin 9g-1 are both provided with openings, and the arc-extinguishing plates are horizontally stacked in the magazine-type arc-extinguishing plate storage bin 9g-1.

[0061] A rectangular through hole is provided on the lower pressure plate 9f-3, and the upper end surface of the magazine-type arc-extinguishing plate storage bin 9g-1 is inserted into the rectangular through hole. The cylinder lifting device 9g-2 is arranged below the magazine-type arc-extinguishing plate storage bin 9g-1. The movable end of the cylinder lifting device 9g-2 is provided with a top plate, and the top plate is connected to the magazine-type arc-extinguishing plate storage bin 9g-1 and the arc-extinguishing plate therein. The cylinder lifting device 9g-2 drives the magazine-type arc-extinguishing plate storage bin 9g-1 and the arc-extinguishing plate therein to move upward.

[0062] The guide cylinder 9g-3 is arranged on the lower surface of the lower pressure plate 9f-3. The guide cylinder 9g-3 drives the bullet-type arc-extinguishing plate storage bin 9g-1 to move horizontally so that the uppermost arc-extinguishing plate is close to the end surface of the longitudinal seam of the cylinder section.

[0063] The guide movable cover plate 9g-4 is arranged on the upper pressure plate 9f-2, and the guide movable cover plate 9g-4 can slide along the upper pressure plate 9f-2. A groove is opened in the middle of the upper pressure plate 9f-2 to expose the longitudinal seam of the cylinder section; locking bolts 9g-5 are arranged on both sides of the guide movable cover plate 9g-4, and a distance bolt 9g-6 is arranged in the middle. Remove the guide movable cover plate 9g-4, insert the magazine-type arc-extinguishing plate storage bin 9g-1 upward into the rectangular through hole on the lower pressure plate 9f-3, reset the guide movable cover plate 9g-4 and fix it with the locking bolt 9g-5, adjust the distance bolt 9g-6 to make the uppermost arc-extinguishing plate flush with the upper surface of the longitudinal seam of the cylinder section.

[0064] Furthermore, the production line also includes a cylinder segment buffer storage device 11, which is arranged on the side of the cylinder segment longitudinal seam and the arc-initiating and extinguishing plate assembly spot welding device 9, and the cylinder segment buffer storage device 11 is composed of a cylinder segment storage rack 11a and a translation slide 11b. The translation slide 11b can be moved in the production line area, and the cylinder segment storage rack 11a is arranged above the translation slide 11b. Multiple translation slides 11b can be set, and multiple cylinder segment storage racks 11a can be set on a translation slide 11b. The cylinder segment storage rack 11a is used for buffering and storing cylinder segments 18. The direction of the translation slide 11b is perpendicular to the direction of the roller axis on the plate rolling machine 4, and the axis direction of the cylinder segment 18 on the cylinder segment storage rack 11a is the same as the direction of the roller axis on the plate rolling machine 4, which facilitates the transportation of the cylinder segment 18 by the robot arm cylinder segment transfer device 10.

[0065] Furthermore, the cylinder segment teaming conveying device includes a cylinder segment teaming translation guide rail 12, a cylinder segment teaming translation trolley 13 and a cylinder segment teaming active conveying roller 14. The cylinder segment teaming translation trolley 13 runs on the cylinder segment teaming translation guide rail 12. The cylinder segment teaming translation trolley 13 is equipped with an active conveying roller 13a. The cylinder segment teaming active conveying roller 14 is arranged at one end of the cylinder segment teaming translation guide rail 12 and is perpendicular to the cylinder segment teaming translation guide rail 12. The cylinder segment teaming translation trolley 13 can be connected to the cylinder segment teaming active conveying roller 14.

[0066] As one of the embodiments, the cylinder segment grouping translation trolley 13 can be set to an omnidirectional AGV flatbed vehicle with a jacking function to replace its function, so as to realize the transportation of the cylinder segment 18 to the grouping station and other cylinder segment storage sites.

[0067] Furthermore, a cylinder segment longitudinal seam welding translation guide rail 15 and a cylinder segment longitudinal seam welding translation trolley 16 are provided on the side of the cylinder segment group conveying device (on the side of the cylinder segment group translation guide rail 12). The direction of the cylinder segment longitudinal seam welding translation guide rail 15 is the same as the direction of the roller axis line on the plate rolling machine 4. The cylinder segment longitudinal seam welding translation trolley 16 runs on the cylinder segment longitudinal seam welding translation guide rail 15. A cylinder segment rotation drive device 16a is installed on the cylinder segment longitudinal seam welding translation trolley 16. A cylinder segment longitudinal seam welding machine 17 is provided at one end of the cylinder segment longitudinal seam welding translation guide rail 15. The cylinder segment longitudinal seam welding machine 17 realizes the welding of the cylinder segment longitudinal seam 18b.

[0068] The working process of manufacturing pressure vessel cylinder sections on the production line of this application is as follows:

[0069] S1: Drive out the steel plate feeding trolley 1, place the steel plate on the steel plate feeding trolley 1, and reset the steel plate feeding trolley 1;

[0070] S2: Start the steel plate feeding mechanism 3, the vacuum suction cup 3b on the vacuum suction cup connecting frame 3c sucks the steel plate from the steel plate feeding trolley 1, and the steel plate is placed on the passive roller 5a of the plate rolling machine feeding frame 5 by using the connecting frame horizontal and lifting drive mechanism 3d, and the extrusion centering mechanism 5b on both sides is started to align the steel plate with the plate rolling machine 4, and the steel plate tail pushing mechanism 5c is started to push the steel plate to the plate rolling machine 4;

[0071] S3: Start the plate rolling machine 4 to roll the plate. After the plate rolling is completed, turn the opening of the longitudinal seam 18b of the cylinder section 18 to the bottom, open the upper roller support and the turning arm 4a, and raise the upper roller of the plate rolling machine 4;

[0072] S4: Start the mechanical arm barrel segment transfer device 10, the mechanical arm horizontal and lifting drive mechanism 10b drives the barrel segment transfer mechanical arm 10c to insert into the barrel segment 18 and transfer the barrel segment 18 to the translation trolley 7;

[0073] S5: Start the translation trolley 7 to carry the barrel section 18 to the bottom of the barrel section longitudinal seam and arc-extinguishing plate assembly spot welding device 9, start the barrel section rotation drive mechanism 8b, turn the barrel section longitudinal seam 18b opening to the top, start the lifting platform 9b to move downward until the crossbeam 9d presses the barrel section longitudinal seam 18b opening, start the barrel section two side squeezing devices 9h to squeeze the barrel section 18 on both sides to eliminate the longitudinal seam gap of the barrel section 18, start the horizontal squeezing devices 9e at both ends of the crossbeam 9d to squeeze the two ends of the barrel section longitudinal seam 18b opening to eliminate the axial misalignment at both ends of the barrel section longitudinal seam 18b opening, start the upper and lower clamping devices 9f to eliminate the misalignment in the thickness direction of the barrel section longitudinal seam 18b, start the arc-extinguishing plate loading device 9g to install the arc-extinguishing plates 18a at both ends, start the welding robot 9c to spot weld the barrel section longitudinal seam 18b and the arc-extinguishing plate 18a, start the reset program, and the translation trolley 7 to carry the barrel section 18 to the bottom of the mechanical arm barrel section transfer device 10;

[0074] S6: Start the mechanical arm barrel segment transfer device 10, the mechanical arm horizontal and lifting drive mechanism 10b drives the barrel segment transfer mechanical arm 10c to insert into the barrel segment 18 and transfer the barrel segment 18 to the barrel segment longitudinal seam welding translation trolley 16;

[0075] S7: Start the barrel segment longitudinal seam welding translation trolley 16, send the barrel segment 18 into the barrel segment longitudinal seam welding machine 17, start the barrel segment rotation driving device 16a installed on the barrel segment longitudinal seam welding translation trolley 16, rotate the barrel segment longitudinal seam 18b to the top, start the barrel segment longitudinal seam welding machine 17 to complete the longitudinal seam welding, start the reset program, and the barrel segment longitudinal seam welding translation trolley 16 moves the barrel segment 18 out of the barrel segment longitudinal seam welding machine 17;

[0076] S8: Start the mechanical arm barrel segment transfer device 10, the mechanical arm horizontal and lifting drive mechanism 10b drives the barrel segment transfer mechanical arm 10c to insert into the barrel segment 18 and transfer the barrel segment 18 to the translation trolley 7;

[0077] S9: Start the translation trolley 7 to carry the barrel section 18 away from the mechanical arm barrel section transfer device 10, start the barrel section rotation drive mechanism 8b on the translation trolley 7, rotate the arc-initiating and extinguishing plates 18a at both ends of the barrel section 18 to the bottom, start the horizontal moving devices 8d on both sides to make the fixed distance backings on them close to the end surface of the barrel section 18, start the upper and lower vertical moving feeding devices 8e to drive the circular saw 8c to cut downward the arc-initiating and extinguishing plates 18a at both ends of the barrel section 18, start the reset procedure, and the translation trolley 7 carries the barrel section 18 to enter the bottom of the mechanical arm barrel section transfer device 10;

[0078] S10: Start the mechanical arm barrel segment transfer device 10, the mechanical arm horizontal and lifting drive mechanism 10b drives the barrel segment transfer mechanical arm 10c to insert into the barrel segment 18 and transfer the barrel segment 18 to the plate rolling machine 4;

[0079] S11: Start the plate rolling machine 4, close the upper roller support and the turning arm 4a, and rewind the cylinder section 18. After the rewinding is completed, the plate rolling machine 4 opens the upper roller support and the turning arm 4a, and drives the upper roller to move upward for a distance;

[0080] S12: Start the mechanical arm barrel segment transfer device 10, the mechanical arm horizontal and lifting drive mechanism 10b drives the barrel segment transfer mechanical arm 10c to insert into the barrel segment 18 and transfer the barrel segment 18 to the barrel segment group translation trolley 13;

[0081] S13: Start the active conveying roller 13a on the cylinder segment group translation trolley 13, and carry the cylinder segment 18 to run until it is aligned with the cylinder segment group active conveying roller 14;

[0082] S14: Simultaneously start the active conveying roller 13a and the cylinder segment grouping active conveying roller 14 to convey the cylinder segment 18 to the cylinder segment grouping station;

[0083] S15: The cylinder segment buffer storage device 11 can be used flexibly. When the cylinder segment 18 needs to be stored, the translation slide 11b on the cylinder segment buffer storage device 11 is moved to the bottom of the robot arm cylinder segment transfer device 10. The robot arm cylinder segment transfer device 10 places the cylinder segment 18 on the translation slide 11b. The translation slide 11b carries the cylinder segment 18 to reset. When the cylinder segment 18 needs to be taken out, the translation slide 11b carrying the cylinder segment 18 is moved to the bottom of the robot arm cylinder segment transfer device 10. The robot arm cylinder segment transfer device 10 sends the cylinder segment 18 to other workstations.

[0084] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An automated production line for manufacturing cylinder sections of pressure vessels, characterized in that: It comprises a steel plate feeding trolley (1), a steel plate feeding mechanism (3), a plate rolling machine (4), a cylinder segment longitudinal seam and arc-extinguishing plate assembly spot welding device (9), a cylinder segment longitudinal seam welding machine (17), an arc-extinguishing plate cutting device (8), a cylinder segment group conveying device and a mechanical arm cylinder segment transfer device (10); The steel plate feeding mechanism (3) transfers the steel plate loaded on the steel plate feeding trolley (1) to the plate rolling machine (4), and the mechanical arm cylinder segment transfer device (10) transfers the cylinder segment processed by the plate rolling machine (4) between the cylinder segment longitudinal seam and arc-extinguishing plate assembly spot welding device (9), the cylinder segment longitudinal seam welding machine (17), the arc-extinguishing plate cutting device (8) and the cylinder segment group conveying device to sequentially complete various processing steps; The plate rolling machine (4) is provided with a translation guide rail (6) and a translation trolley (7) on the side thereof. The translation trolley (7) runs on the translation guide rail (6). The arc-extinguishing plate cutting device (8) is installed on the translation trolley (7). The arc-extinguishing plate cutting device (8) is composed of a frame (8a), a cylinder section rotation driving mechanism (8b) installed on both sides of the frame (8a), a horizontal moving device (8d) installed at both ends of the frame (8a), an up-and-down vertical moving feeding device (8e) installed on the horizontal moving device (8d), and a circular saw (8c) installed on the up-and-down vertical moving feeding device (8e); The frame (8a) is provided with squeezing devices (9h) on both sides of the cylinder section. The cylinder section longitudinal seam and arc-extinguishing plate assembly spot welding device (9) is arranged at one end of the translation guide rail (6). The cylinder section longitudinal seam and arc-extinguishing plate assembly spot welding device (9) comprises a column and a lifting guide rail (9a) and a lifting platform (9b) running on the column and the lifting guide rail (9a). A welding robot (9c) is installed on the lifting platform (9b). A crossbeam (9d) is installed at the end of the lifting platform (9b). A sensor is provided below the crossbeam (9d). A guide groove (9d-1) is provided on the crossbeam (9d). Horizontal squeezing devices (9e) are respectively installed at both ends of the crossbeam (9d). The horizontal squeezing device (9e) can move along the guide groove (9d-1) on the crossbeam (9d). The ends of the horizontal squeezing device (9e) are provided with upper and lower clamping devices (9f) and an arc-extinguishing plate filling device (9g); A cylinder segment longitudinal seam welding translation guide rail (15) and a cylinder segment longitudinal seam welding translation trolley (16) are arranged on the side of the cylinder segment group conveying device. The direction of the cylinder segment longitudinal seam welding translation guide rail (15) is the same as the direction of the roller axis of the plate rolling machine (4). The cylinder segment longitudinal seam welding translation trolley (16) runs on the cylinder segment longitudinal seam welding translation guide rail (15). A cylinder segment rotation driving device (16a) is installed on the cylinder segment longitudinal seam welding translation trolley (16). The cylinder segment longitudinal seam welding machine (17) is arranged at one end of the cylinder segment longitudinal seam welding translation guide rail (15).

2. According to claim 1, the automated production line for manufacturing cylinder sections of pressure vessels is characterized by: The plate rolling machine (4) comprises a plate rolling machine feed frame (5) and a plate rolling actuator, a passive roller (5a) is installed on the plate rolling machine feed frame (5), two side extrusion centering mechanisms (5b) are installed on both sides of the plate rolling machine feed frame (5) to adjust the position of the steel plate located on the passive roller (5a), and a steel plate tail pushing mechanism (5c) is installed in the middle of the plate rolling machine feed frame (5) to push the steel plate located on the passive roller (5a) to the plate rolling actuator of the plate rolling machine (4); The steel plate feeding trolley (1) is arranged on a steel plate feeding trolley track (2), and the steel plate feeding trolley track (2) is arranged in the activity area of ​​the steel plate feeding mechanism (3), and the steel plate feeding trolley (1) can move in and out along the steel plate feeding trolley track (2); The steel plate feeding mechanism (3) comprises a frame and a guide rail (3a), the frame and the guide rail (3a) are arranged across the plate rolling machine feeding frame (5), two sets of connecting frame horizontal and lifting drive mechanisms (3d) are installed on the frame and the guide rail (3a), a vacuum suction cup connecting frame (3c) is arranged below the connecting frame horizontal and lifting drive mechanism (3d), the connecting frame horizontal and lifting drive mechanism (3d) drives the vacuum suction cup connecting frame (3c) to move up and down and translate, a plurality of vacuum suction cups (3b) are arranged below the vacuum suction cup connecting frame (3c), the vacuum suction cups (3b) absorb the steel plate from the steel plate feeding trolley (1), and the steel plate is placed on the passive roller (5a) of the plate rolling machine feeding frame (5) by using the connecting frame horizontal and lifting drive mechanism (3d).

3. According to claim 1, the automated production line for manufacturing cylinder sections of pressure vessels is characterized by: The production line also includes a cylinder segment buffer storage device (11), which is arranged on the side of the cylinder segment longitudinal seam and the arc-ignition plate assembly spot welding device (9), and the cylinder segment buffer storage device (11) is composed of a cylinder segment storage rack (11a) and a translation slide (11b).

4. The automated production line for manufacturing cylinder sections of pressure vessels according to claim 1, characterized in that: The cylinder segment grouping conveying device comprises a cylinder segment grouping translation guide rail (12), a cylinder segment grouping translation trolley (13) and a cylinder segment grouping active conveying roller (14); the cylinder segment grouping translation trolley (13) runs on the cylinder segment grouping translation guide rail (12); an active conveying roller (13a) is installed on the cylinder segment grouping translation trolley (13); the cylinder segment grouping active conveying roller (14) is arranged at one end of the cylinder segment grouping translation guide rail (12) and is perpendicular to the cylinder segment grouping translation guide rail (12); the cylinder segment grouping translation trolley (13) can be connected to the cylinder segment grouping active conveying roller (14).

5. The automated production line for manufacturing cylinder sections of pressure vessels according to claim 1, characterized in that: The mechanical arm barrel segment transfer device (10) is composed of a cantilever frame and guide rails (10a), a mechanical arm horizontal and lifting drive mechanism (10b) running thereon, and a barrel segment transfer mechanical arm (10c).

6. The automated production line for manufacturing cylinder sections of pressure vessels according to claim 1, characterized in that: The crossbeam (9d) is provided with a rectangular channel extending vertically along the length direction, the guide groove (9d-1) is provided on the inner side walls on both sides of the channel, and a cylinder mounting support (9i) is provided at each end of the guide groove (9d-1), and the cylinder mounting support (9i) can slide in the guide groove (9d-1); The horizontal extrusion device (9e) comprises an extrusion cylinder (9e-1), the front flange of the extrusion cylinder (9e-1) is connected to the cylinder supports located at the two ends of the cross beam (9d), the cylinder rod of the extrusion cylinder (9e-1) is connected to one end of the cylinder mounting support (9i), the extrusion cylinder (9e-1) drives the cylinder mounting support (9i) to slide in the guide groove (9d-1) close to the cylinder section, and the two ends of the plane extrusion cylinder section at the other end of the cylinder mounting support (9i) eliminate the axial misalignment on both sides of the longitudinal seam of the cylinder section; The upper and lower clamping devices (9f) include two clamping cylinders (9f-1), an upper pressing plate (9f-2), a lower pressing plate (9f-3), a guide column (9f-4) and a guide sleeve (9f-5). The clamping cylinders (9f-1) are respectively arranged at the upper and lower ends of the cylinder mounting support (9i). The cylinder rods of the clamping cylinders (9f-1) are respectively connected to the upper pressing plate (9f-2) and the lower pressing plate (9f-3). f-3), two guide columns (9f-4) are respectively installed on the cylinder mounting support (9i), a guide sleeve (9f-5) matched with the guide column (9f-4) is installed on the cylinder mounting support (9i), the contact parts between the upper pressure plate (9f-2) and the lower pressure plate (9f-3) and the cylinder section adopt an arc surface structure, and the clamping cylinder (9f-1) drives the upper pressure plate (9f-2) and the lower pressure plate (9f-3) to move closer to each other, and squeezes the cylinder section in the radial direction to eliminate the radial misalignment of the longitudinal seam of the cylinder section.

7. The automated production line for manufacturing cylinder sections of pressure vessels according to claim 6, characterized in that: The arc-extinguishing plate loading device (9g) is arranged on the lower surface of the lower pressure plate (9f-3), and the arc-extinguishing plate loading device (9g) comprises a magazine-type arc-extinguishing plate storage bin (9g-1), a cylinder lifting device (9g-2), a guide cylinder (9g-3) and a guide movable cover plate (9g-4); the upper end surface and the lower end surface of the magazine-type arc-extinguishing plate storage bin (9g-1) are both provided with openings, and the arc-extinguishing plates are horizontally stacked in the magazine-type arc-extinguishing plate storage bin (9g-1); A rectangular through hole is provided on the lower pressure plate (9f-3), and the upper end surface of the magazine-type arc-extinguishing plate storage bin (9g-1) is inserted into the rectangular through hole; the cylinder lifting device (9g-2) is arranged below the magazine-type arc-extinguishing plate storage bin (9g-1); a top plate is provided at the movable end of the cylinder lifting device (9g-2), and the top plate is connected to the magazine-type arc-extinguishing plate storage bin (9g-1) and the arc-extinguishing plate therein; the cylinder lifting device (9g-2) drives the magazine-type arc-extinguishing plate storage bin (9g-1) and the arc-extinguishing plate therein to move upward; The guide cylinder (9g-3) is arranged on the lower surface of the lower pressure plate (9f-3), and the guide cylinder (9g-3) drives the magazine-type arc-initiating and extinguishing plate storage bin (9g-1) to move horizontally, so that the uppermost arc-initiating and extinguishing plate is closely attached to the end surface of the longitudinal seam of the cylinder section; The guide movable cover plate (9g-4) is arranged on the upper pressure plate (9f-2), and the guide movable cover plate (9g-4) can slide along the upper pressure plate (9f-2). A groove is opened in the middle of the upper pressure plate (9f-2) to expose the longitudinal seam of the cylinder section; locking bolts (9g-5) are arranged on both sides of the guide movable cover plate (9g-4), and a distance bolt (9g-6) is arranged in the middle. The guide movable cover plate (9g-4) is removed, and the magazine-type arc-extinguishing plate storage bin (9g-1) is inserted upward into the rectangular through hole on the lower pressure plate (9f-3), the guide movable cover plate (9g-4) is reset and fixed with the locking bolt (9g-5), and the distance bolt (9g-6) is adjusted to make the uppermost arc-extinguishing plate flush with the upper surface of the longitudinal seam of the cylinder section.

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