A welding device and process for pipelines and panels used in the processing of the bottom cold shield of a tokamak

Abstract

The present invention discloses a pipeline and panel welding device and its process for the processing of the bottom cold screen of a tokamak, which relates to the technical field of pipeline and panel welding. It includes a workbench, a position adjustment and locking member is installed inside the first linkage, and an equidistant displacement member is arranged at the bottom of the F-shaped positioning frame. By setting the position adjustment and locking member, the first linkage swings relative to the sleeve by rotating the guiding rotating link rod. The first piston rod moves along the first sleeve by pushing or pulling the first linkage, so as to move the first linkage above the welding position. Then, the pipe fitting passes through the first linkage and contacts the panel on the positioning support plate. The pipe fitting inside the first linkage is clamped and limited by pulling the second linkage. Subsequently, by pushing the T-shaped insertion rod, the aqueous solution inside the sleeve, the first sleeve and the second sleeve loses the flow space, thereby realizing the limitation of the pipe fitting, improving the applicable range of the equipment, and also improving the stability of the butt joint between the pipe fitting and the panel.

Description

Technical Field

[0001] The present invention relates to the technical field of welding of pipelines and panels, and specifically to a welding device and process for pipelines and panels used in the processing of the bottom cold shield of a tokamak. Background Art

[0002] Controlled thermonuclear fusion research is a research field of great significance in contemporary natural science research. Its goal is to create extremely high temperature conditions equivalent to the temperature inside the sun on the earth, utilize the abundant deuterium resources in seawater for nuclear fusion reactions, release huge fusion energy, and provide "inexhaustible" new energy for mankind. In recent years, many countries in the world have been actively researching superconducting magnetic confinement fusion experimental devices. Internationally, such devices are called superconducting tokamaks. When processing a tokamak, it is necessary to weld pipelines and panels.

[0003] During the process of welding pipelines, due to the different diameters of their pipe fittings and each specification of pipeline being installed on different specifications of panels, it is rather cumbersome to weld different pipelines at the corresponding positions on different panels at this time. It is inconvenient to accurately position different specifications of pipelines on the corresponding panels. In this way, not only the welding effect is affected, but also the operation is cumbersome, affecting the welding efficiency between the pipelines and the panels. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device and process for pipelines and panels used in the processing of the bottom cold shield of a tokamak in order to solve the problem of inconveniently fixing pipelines of different specifications at the corresponding positions on the panel.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A welding device for pipelines and panels used in the processing of the bottom cold shield of a tokamak, including a workbench. The top of the workbench is installed with a positioning support plate through bolts. The top of the workbench is installed with a sleeve located on one side of the positioning support plate. The top of the sleeve is rotationally connected with a guiding rotating link through a rotating shaft. One side of the guiding rotating link is installed with a first sleeve. A first piston rod passing through the guiding rotating link is inserted into the first sleeve. The end of the first piston rod away from the guiding rotating link is installed with a first connecting ring. An adjustment locking part is installed inside the first connecting ring. An F-shaped positioning frame is installed on the outer wall of the first connecting ring. An equidistant displacement part is arranged at the bottom of the F-shaped positioning frame. The first connecting ring is connected with a welding torch located below the first connecting ring through the equidistant displacement part. A rotary welding unit is installed on the side of the F-shaped positioning frame away from the first connecting ring.

[0006] As a further aspect of the present invention: The position-adjusting and locking member includes two movable sleeve blocks movably sleeved on the guiding rotating link rod. The two movable sleeve blocks are symmetrically arranged along the vertical central axis of the guiding rotating link rod. On the side of the movable sleeve block away from the first sleeve, an inclined link rod connected to the first piston rod is rotatably connected through a rotating shaft. On one side of the workbench, a water storage bucket is installed. On the top of the water storage bucket, a connection bin is installed. Inside the connection bin, a blocking plug is slidably connected. On the blocking plug, a T-shaped insertion rod penetrating to the outside of the connection bin is provided. On the top of the connection bin, a hose connected to the first sleeve and a diversion pipe connected to the sleeve are respectively provided. At the bottom of the guiding rotating link rod, there is a threaded rod located inside the sleeve. A threaded sleeve is sleeved on the threaded rod. At the bottom of the threaded sleeve, a plug block fitting with the inner wall of the sleeve is installed. On the top of the plug block, a telescopic rod connected to the top of the inner wall of the sleeve is installed. Inside the first connecting ring, a plurality of clamping plates penetrating to the outside of the first connecting ring are inserted. The plurality of clamping plates are equidistantly distributed along the center of the first connecting ring. Inside the clamping plate, a pressure pin is installed. An inclined connecting guide rail is sleeved on the pressure pin. On the top of the inclined connecting guide rail, a second connecting ring located above the first connecting ring is installed. On the side of the second connecting ring close to the first piston rod, a second piston rod is provided. A second sleeve connected to the first piston rod is sleeved on the outside of the second piston rod. Inside the second sleeve, a diversion groove is provided.

[0007] As a further aspect of the present invention: The diameter of the pressure pin is equal to the inner wall width of the inclined connecting guide rail. The inclination angle of the inclined connecting guide rail relative to the top of the workbench is 45 degrees.

[0008] As a further aspect of the present invention: The center of the second connecting ring is coaxial with the center of the first connecting ring. The inner wall diameters of the second connecting ring and the first connecting ring are equal.

[0009] As a further aspect of the present invention: The equidistant displacement member includes an annular bin installed at the bottom of the F-shaped positioning frame. On the side of the inclined connecting guide rail away from the second connecting ring, a pressure rod is installed. At the bottom of the pressure rod, an annular pressing plate located inside the annular bin is installed. The annular pressing plate is rotatably connected to the bottom of an annular transition bin. The bottom of the annular transition bin is connected to a third sleeve. Inside the third sleeve, a third piston rod extending to the outside of the third sleeve is inserted. One end of the third piston rod is installed with a movable frame slidably connected to the outer wall of the third sleeve. The welding torch is installed at the bottom of the movable frame.

[0010] As a further aspect of the present invention: The internal space of the annular bin is equal to the internal space of the third sleeve. The maximum moving distance of the third piston rod is equal to the maximum moving distance of the clamping plate.

[0011] As a further solution of the present invention: the annular bin, the annular transition bin, and the second serial center are coaxial, and a rotary seal ring is provided at the contact position between the bottom of the annular transition bin and the annular bin.

[0012] As a further solution of the present invention: the rotary welding unit includes a mounting seat installed on the side of the F-shaped positioning frame away from the first serial ring. A motor is installed on the top of the mounting seat. The output end of the motor is connected to a transmission gear disk located below the mounting seat. A straight tooth ring meshing with the transmission gear disk is provided at the top of the third sleeve. A protective bin is installed on the outer wall of the connection bin outside the T-shaped insertion rod. A first contact piece is installed on the inner wall of the protective bin, and a second contact piece is provided on the outside of the T-shaped insertion rod inside the protective bin.

[0013] As a further solution of the present invention: the first contact piece is electrically connected to the motor and the welding torch through wires, and the second contact piece is electrically connected to an external power supply through wires.

[0014] The present invention also discloses a welding process for pipelines and panels in the processing of the bottom cold shield of a tokamak. Using the above-mentioned welding device for pipelines and panels in the processing of the bottom cold shield of a tokamak, it includes the following steps:

[0015] S1: First, place the panel on the top of the positioning support plate, and then move the first serial ring above the welding position of the pipe fitting and the panel by operating the position adjustment and locking part.

[0016] S2: Insert the pipe fitting to be welded into the first serial ring so that the bottom of the pipe fitting contacts the panel on the positioning support plate.

[0017] S3: Position the pipe fitting by operating the position adjustment and locking part so that the center of the first serial ring is coaxial with the center of the pipe fitting, and at the same time make the positioning support plate stably connected to the first serial ring. During the process of operating the position adjustment and locking part to fix the pipe fitting, the equal-distance displacement part operates synchronously to adjust the position of the welding torch so that the distance between the welding torch and the connection of the pipe fitting and the panel is always equal.

[0018] S4: Rotate the welding torch along the center of the pipe fitting for welding through the rotary welding unit.

[0019] S5: After the welding of the pipe fitting and the panel is completed, operate the position adjustment and locking part to release the limit of the pipe fitting, then remove the positioning support plate, and then remove the positioning support plate together with the welded pipe fitting and panel.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By setting the position-adjusting and locking member, the first connecting ring swings relative to the sleeve by rotating the guiding connecting rod. The first piston rod is moved along the first sleeve by pushing or pulling the first connecting ring, so as to move the first connecting ring above the welding position. Then, the pipe fitting is passed through the first connecting ring, and the bottom end of the pipe fitting contacts the panel on the positioning support plate. Subsequently, the second connecting ring is pulled upward to clamp and limit the pipe fitting inside the first connecting ring. Then, by pushing the T-shaped plug rod, the aqueous solution inside the sleeve, the first sleeve, and the second sleeve loses the flowing space, thereby realizing the limitation of the pipe fitting, improving the applicable range of the equipment, and also improving the stability of the butt joint between the pipe fitting and the panel;

[0022] 2. By setting the equidistant displacement member, when the pressure rod moves upward along the inclined connecting guide rail, the aqueous solution inside the third sleeve will enter the annular chamber under the action of negative pressure. At this time, the third piston rod will move towards the third sleeve, so as to drive the welding torch to move towards the center of the first connecting ring through the movable frame. Since the second connecting ring and the clamping plate move the same distance, the pressure rod and the clamping plate move the same distance, so that the third piston rod and the clamping plate move the same distance, so that the distance between the welding torch and the bottom edge of the pipe fitting with different diameters remains unchanged, so as to prevent the welding effect from being affected due to the welding torch being too close or too far from the connection between the pipe fitting and the panel;

[0023] 3. By setting the rotary welding unit, when the T-shaped plug rod is pushed to block the bottom of the hose and the diversion pipe by the blocking plug, the second contact piece will move towards the first contact piece as the T-shaped plug rod moves, so that the second contact piece contacts the first contact piece. At this time, the motor and the welding torch are energized and operate. When the motor operates, it will drive the straight-tooth ring to rotate through the transmission gear disk, so that the third sleeve rotates synchronously with the straight-tooth ring. In this way, the welding torch can weld along the bottom edge of the pipe fitting, so as to ensure the uniformity of the weld seam, make the weld seam beautiful, and at the same time improve the stability of the connection between each position at the bottom of the pipe fitting and the panel, realizing the orderly operation of pipe fitting fixing and welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is a schematic connection diagram of the guiding connecting rod and the first connecting ring of the present invention;

[0026] Figure 3 is a schematic connection diagram of the first sleeve and the water storage bucket of the present invention;

[0027] Figure 4 is a schematic internal structure diagram of the sleeve and the first piston rod of the present invention;

[0028] Figure 5Schematic diagram of the connection between the second linkage ring and the annular bin of the present invention;

[0029] Figure 6 Internal structure schematic diagram of the annular bin and the third sleeve of the present invention;

[0030] Figure 7 Schematic diagram of the connection between the third sleeve and the motor of the present invention;

[0031] Figure 8 Internal structure schematic diagram of the connection bin and the protection bin of the present invention.

[0032] In the figure: 1, workbench; 2, sleeve; 3, guiding rotating connecting rod; 4, first linkage ring; 501, first sleeve; 502, movable sleeve block; 503, first piston rod; 504, inclined connecting rod; 505, hose; 506, connection bin; 507, water storage bucket; 508, diversion pipe; 509, second linkage ring; 510, second sleeve; 511, second piston rod; 512, clamping plate; 513, inclined connecting guide rail; 514, telescopic rod; 515, plug block; 516, threaded sleeve; 517, threaded rod; 518, diversion groove; 519, pressing pin; 520, T-shaped inserting rod; 521, blocking plug; 601, annular bin; 602, F-shaped positioning frame; 603, annular pressing plate; 604, pressing rod; 605, annular transition bin; 606, movable frame; 607, third sleeve; 608, third piston rod; 609, welding torch; 701, motor; 702, mounting seat; 703, transmission gear disc; 704, straight tooth ring; 705, first contact piece; 706, second contact piece; 707, protection bin; 8, positioning support plate. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The following describes the embodiments according to the overall structure of the present invention.

[0035] Please refer to Figures 1 to 8 , in an embodiment of the present invention, a pipeline and panel welding device for the processing of the bottom cold shield of a tokamak includes a workbench 1. A positioning support plate 8 is installed on the top of the workbench 1 through bolts. A sleeve 2 is installed on the top of the workbench 1 on one side of the positioning support plate 8. The top of the sleeve 2 is rotatably connected to a guiding rotating link 3 through a rotating shaft. A first sleeve 501 is installed on one side of the guiding rotating link 3. A first piston rod 503 passing through the guiding rotating link 3 is inserted into the first sleeve 501. One end of the first piston rod 503 away from the guiding rotating link 3 is installed with a first connecting ring 4. An adjusting and locking member is installed inside the first connecting ring 4. An F-shaped positioning frame 602 is installed on the outer wall of the first connecting ring 4. An equidistant displacement member is arranged at the bottom of the F-shaped positioning frame 602. The first connecting ring 4 is connected to a welding torch 609 located below the first connecting ring 4 through the equidistant displacement member. A rotating welding unit is installed on one side of the F-shaped positioning frame 602 away from the first connecting ring 4.

[0036] In this embodiment: First, place the panel on the top of the positioning support plate 8. Then, move the first connecting ring 4 above the welding joint of the pipe fitting and the panel by operating the position-adjusting locking member. Subsequently, insert the pipe fitting to be welded into the first connecting ring 4 so that the bottom of the pipe fitting contacts the panel on the positioning support plate 8. Then, position the pipe fitting by operating the position-adjusting locking member, making the center of the first connecting ring 4 coaxial with the center of the pipe fitting, and at the same time making the positioning support plate 8 stably connected to the first connecting ring 4. During the process of operating the position-adjusting locking member to fix the pipe fitting, the equidistant displacement member operates synchronously to adjust the position of the welding torch 609, so that the distance between the welding torch 609 and the connection joint of the pipe fitting and the panel is always equal. After that, rotate the welding unit to make the welding torch 609 rotate along the center of the pipe fitting for welding. After the welding of the pipe fitting and the panel is completed, operate the position-adjusting locking member to release the limit of the pipe fitting, then remove the positioning support plate 8, and then remove the positioning support plate 8 together with the welded pipe fitting and panel.

[0037] Please refer specifically to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 . The position-adjusting locking member includes two movable sleeve blocks 502 movably sleeved on the guiding rotating connecting rod 3. The two movable sleeve blocks 502 are symmetrically arranged along the vertical central axis of the guiding rotating connecting rod 3. The side of the movable sleeve block 502 away from the first sleeve 501 is rotatably connected to an inclined connecting rod 504 connected to the first piston rod 503 through a rotating shaft. A water storage bucket 507 is installed on one side of the workbench 1. A connecting bin 506 is installed on the top of the water storage bucket 507. A blocking plug 521 is slidably connected inside the connecting bin 506. A T-shaped insertion rod 520 penetrating to the outside of the connecting bin 506 is arranged on the blocking plug 521. A hose 505 connected to the first sleeve 501 and a diversion pipe 508 connected to the sleeve 2 are respectively arranged on the top of the connecting bin 506. A threaded rod 517 located inside the sleeve 2 is arranged at the bottom of the guiding rotating connecting rod 3. A threaded sleeve 516 is sleeved on the threaded rod 517. A plug block 515 attached to the inner wall of the sleeve 2 is installed at the bottom of the threaded sleeve 516. A telescopic rod 514 connected to the top of the inner wall of the sleeve 2 is installed at the top of the plug block 515. A plurality of clamping plates 512 penetrating to the outside of the first connecting ring 4 are inserted inside the first connecting ring 4. The plurality of clamping plates 512 are equidistantly distributed along the center of the first connecting ring 4. A pressure pin 519 is installed inside the clamping plate 512. An inclined connecting guide rail 513 is sleeved on the pressure pin 519. A second connecting ring 509 located above the first connecting ring 4 is installed at the top of the inclined connecting guide rail 513. A second piston rod 511 is arranged on the side of the second connecting ring 509 close to the first piston rod 503. A second sleeve 510 connected to the first piston rod 503 is sleeved on the outside of the second piston rod 511. A diversion groove 518 is formed inside the second sleeve 510.

[0038] In this embodiment: By rotating the guiding rotating link 3, the first connecting ring 4 swings relative to the sleeve 2, thereby adjusting the X-axis position of the first connecting ring 4 relative to the positioning support plate 8. During this process, the threaded rod 517 rotates synchronously with the guiding rotating link 3. By rotating the threaded rod 517, the plug block 515 of the threaded sleeve 516 moves, thereby squeezing the aqueous solution in the sleeve 2 by the plug block 515. At the same time, by pushing or pulling the first connecting ring 4, the first piston rod 503 moves along the first sleeve 501, so that the aqueous solution inside the second sleeve 510 enters the water storage bucket 507 through the hose 505 and the connection chamber 506, or the aqueous solution inside the water storage bucket 507 enters the first sleeve 501. In this way, the Y-axis direction of the first connecting ring 4 located on the positioning support plate 8 can be adjusted, so as to move the first connecting ring 4 above the welding position. Then, the pipe fitting is passed through the first connecting ring 4, and the bottom end of the pipe fitting contacts the panel on the positioning support plate 8. Subsequently, the second connecting ring 509 is pulled upward. At this time, the second connecting ring 509 squeezes the aqueous solution inside the second sleeve 510 through the second piston rod 511, so that the aqueous solution inside the first sleeve 501 enters the second sleeve 510 through the diversion groove 518. During the upward movement of the second connecting ring 509, the inclined connecting guide rail 513 squeezes the pressure pin 519, so that the clamping plate 512 moves towards the center of the first connecting ring 4, thereby clamping and limiting the pipe fitting inside the first connecting ring 4. Subsequently, by pushing the T-shaped insertion rod 520, the blocking plug 521 is moved below the hose 505 and the diversion pipe 508, so that the aqueous solution inside the sleeve 2, the first sleeve 501, and the second sleeve 510 loses the flowing space, thereby realizing the limitation of the pipe fitting, improving the applicable range of the equipment, and at the same time improving the stability of the butt joint between the pipe fitting and the panel.

[0039] Please refer specifically to Figure 4 , the diameter of the pressure pin 519 is equal to the inner wall width of the inclined connecting guide rail 513, and the inclination angle of the inclined connecting guide rail 513 relative to the top of the workbench 1 is forty-five degrees.

[0040] In this embodiment: By setting this structure, the second connecting ring 509 and the clamping plate 512 move synchronously, and at the same time, the moving distances of the second connecting ring 509 and the clamping plate 512 are always equal.

[0041] Please refer specifically to Figure 3 , Figure 4 , the center of the second connecting ring 509 is coaxial with the center of the first connecting ring 4, and the inner wall diameters of the second connecting ring 509 and the first connecting ring 4 are equal.

[0042] In this embodiment: By setting this structure, it is prevented that the pipe fitting rubs and collides with the second connecting ring 509 when inserted into the first connecting ring 4.

[0043] Please refer specifically toFigure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , etc. The equidistant displacement member includes an annular bin 601 installed at the bottom of the F-shaped positioning frame 602. A pressure rod 604 is installed on the side of the inclined connecting rail 513 away from the second connecting ring 509. The bottom of the pressure rod 604 is installed with an annular pressing plate 603 located inside the annular bin 601. The bottom of the annular pressing plate 603 is rotatably connected to an annular transition bin 605. The bottom of the annular transition bin 605 is connected to a third sleeve 607. A third piston rod 608 extending to the outside of the third sleeve 607 is inserted into the inside of the third sleeve 607. One end of the third piston rod 608 is installed with a movable frame 606 slidably connected to the outer wall of the third sleeve 607. The welding torch 609 is installed at the bottom of the movable frame 606.

[0044] In this embodiment: when the pressure rod 604 moves upward along with the inclined connecting rail 513, the aqueous solution inside the third sleeve 607 will enter the annular bin 601 under the action of negative pressure. At this time, the third piston rod 608 will move towards the third sleeve 607, so as to make the third piston rod 608 drive the welding torch 609 to move towards the center of the first connecting ring 4 through the movable frame 606. Since the second connecting ring 509 and the clamping plate 512 move the same distance, the pressure rod 604 and the clamping plate 512 move the same distance, so as to make the third piston rod 608 and the clamping plate 512 move the same distance, so that the distance between the welding torch 609 and the bottom edge of the pipe fittings with different diameters is always unchanged, so as to prevent the welding torch 609 from being too close or too far from the connection between the pipe fitting and the panel and affecting the welding effect.

[0045] Please refer specifically to Figure 4 , Figure 5 , Figure 6 , the internal space of the annular bin 601 is equal to the internal space of the third sleeve 607, and the maximum moving distance of the third piston rod 608 is equal to the maximum moving distance of the clamping plate 512.

[0046] In this embodiment: by setting this structure, when the clamping plate 512 moves, the third piston rod 608 and the clamping plate 512 move synchronously and in the same direction.

[0047] Please refer specifically to Figure 5 , Figure 6 , the annular bin 601, the annular transition bin 605, and the center of the second connecting ring 509 are coaxial. A rotary seal ring is provided at the contact position between the bottom of the annular transition bin 605 and the annular bin 601.

[0048] In this embodiment, by setting this structure, the sealing performance at the connection between the annular transition bin 605 and the annular bin 601 is enhanced to prevent the aqueous solution inside the annular bin 601 from flowing out through the connection between the annular transition bin 605 and the annular bin 601.

[0049] Please refer specifically to Figure 1 、 Figure 5 、 Figure 7 、 Figure 8 and , the rotary welding unit includes a mounting seat 702 installed on the side of the F-shaped positioning frame 602 away from the first connecting ring 4. A motor 701 is installed on the top of the mounting seat 702. The output end of the motor 701 is connected to a transmission gear disc 703 located below the mounting seat 702. A straight tooth ring 704 meshing with the transmission gear disc 703 is provided at the top of the third sleeve 607. A protective bin 707 is installed on the outer wall of the connecting bin 506 and is located outside the T-shaped plug 520. A first contact piece 705 is installed on the inner wall of the protective bin 707. A second contact piece 706 is provided on the outer side of the T-shaped plug 520 and is located inside the protective bin 707.

[0050] In this embodiment, when pushing the T-shaped plug 520 to block the bottom of the hose 505 and the diversion pipe 508 with the blocking plug 521, the second contact piece 706 will move towards the first contact piece 705 as the T-shaped plug 520 moves, so that the second contact piece 706 contacts the first contact piece 705. At this time, the motor 701 and the welding torch 609 are powered on and operate. When the motor 701 operates, it will drive the straight tooth ring 704 to rotate through the transmission gear disc 703, so that the third sleeve 607 rotates synchronously with the straight tooth ring 704. In this way, the welding torch 609 can weld along the edge of the bottom of the pipe fitting, so as to ensure the uniformity of the weld seam, make the weld seam beautiful, and at the same time improve the connection stability of each position at the bottom of the pipe fitting with the panel.

[0051] Please refer specifically to Figure 7 、 Figure 8 and , the first contact piece 705 is electrically connected to the motor 701 and the welding torch 609 through wires, and the second contact piece 706 is electrically connected to an external power supply through wires.

[0052] In this embodiment, by setting this structure, the synchronization of the operation of the welding torch 609 and the motor 701 is achieved, and at the same time, the uniformity of the connection between each position at the bottom of the pipe fitting and the panel is ensured.

[0053] The following provides a welding process for the pipeline and the panel in the processing of the bottom cold shield of a tokamak in combination with the above-mentioned welding device for the pipeline and the panel in the processing of the bottom cold shield of a tokamak, which specifically includes the following steps:

[0054] S1: First, place the panel on the top of the positioning support plate 8. By rotating the guiding link rod 3, the first connecting link 4 swings relative to the sleeve 2, thereby adjusting the X-axis position of the first connecting link 4 relative to the positioning support plate 8. During this process, the threaded rod 517 rotates synchronously with the guiding link rod 3. By rotating the threaded rod 517, the plug 515 of the threaded sleeve 516 moves, thereby squeezing the aqueous solution in the sleeve 2 by the plug 515. At the same time, by pushing or pulling the first connecting link 4, the first piston rod 503 moves along the first sleeve 501, so that the aqueous solution inside the second sleeve 510 enters the water storage bucket 507 through the hose 505 and the connecting chamber 506, or the aqueous solution inside the water storage bucket 507 enters the first sleeve 501. In this way, the Y-axis direction of the first connecting link 4 located on the positioning support plate 8 can be adjusted, so as to move the first connecting link 4 above the welding position;

[0055] S2: Then, pass the pipe fitting through the first connecting link 4 and make the bottom end of the pipe fitting contact the panel on the positioning support plate 8;

[0056] S3: Subsequently, pull up the second connecting link 509. At this time, the second connecting link 509 squeezes the aqueous solution inside the second sleeve 510 through the second piston rod 511, so that the aqueous solution inside the first sleeve 501 enters the second sleeve 510 through the diversion groove 518. During the upward movement of the second connecting link 509, the inclined connecting guide rail 513 squeezes the pressure pin 519, so that the clamping plate 512 moves towards the center of the first connecting link 4, thereby clamping and limiting the pipe fitting inside the first connecting link 4. Subsequently, by pushing the T-shaped plug rod 520, the blocking plug 521 is moved below the hose 505 and the diversion pipe 508, so that the aqueous solution inside the sleeve 2, the first sleeve 501, and the second sleeve 510 loses the flow space, thereby realizing the limitation of the pipe fitting, improving the applicable range of the equipment, and at the same time improving the stability of the butt joint between the pipe fitting and the panel. When the pressure rod 604 moves upward along with the inclined connecting guide rail 513, the aqueous solution inside the third sleeve 607 will enter the annular chamber 601 under the action of negative pressure. At this time, the third piston rod 608 will move towards the third sleeve 607, so that the third piston rod 608 drives the welding torch 609 to move towards the center of the first connecting link 4 through the movable frame 606. Since the moving distances of the second connecting link 509 and the clamping plate 512 are equal, the moving distances of the pressure rod 604 and the clamping plate 512 are equal, so that the moving distances of the third piston rod 608 and the clamping plate 512 are equal, so that the distance between the welding torch 609 and the bottom edge of the pipe fitting with different diameters is always unchanged, so as to prevent the welding torch 609 from being too close or too far from the connection between the pipe fitting and the panel and affecting the welding effect;

[0057] S4: When pushing the T-shaped insertion rod 520 to block the bottom of the hose 505 and the diversion pipe 508 with the blocking plug 521, the second contact piece 706 will move towards the first contact piece 705 as the T-shaped insertion rod 520 moves, so that the second contact piece 706 contacts the first contact piece 705. At this time, the motor 701 and the welding torch 609 are energized and operate. When the motor 701 operates, it will drive the straight-tooth ring 704 to rotate through the transmission gear disk 703, so that the third sleeve 607 rotates synchronously with the straight-tooth ring 704. In this way, the welding torch 609 can weld along the edge of the bottom of the pipe fitting, so as to ensure the uniformity of the weld seam, make the weld seam beautiful, and at the same time improve the connection stability of each position at the bottom of the pipe fitting and the panel.

[0058] S5: After the welding of the pipe fitting and the panel is completed, operate the position adjustment and locking part to make the pipe fitting lose its limit, then remove the positioning support plate 8, and then remove the positioning support plate 8 together with the welded pipe fitting and panel.

[0059] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A pipe and panel welding device for processing a Tokamak bottom cold shield, comprising a workbench (1), characterized in that: A positioning support plate (8) is installed on the top of the workbench (1) by means of bolts. A sleeve (2) is installed on the top of the workbench (1) and is located on one side of the positioning support plate (8). The top of the sleeve (2) is rotatably connected to a guide rotating connecting rod (3) via a rotating shaft. A first sleeve (501) is installed on one side of the guide rotating connecting rod (3). A first piston rod (503) penetrating the guide rotating connecting rod (3) is inserted into the interior of the first sleeve (501). The first piston rod (503) is away from the guide rotating connecting rod (3). A first link (4) is mounted on one end of the guide rotating link (3); a positioning locking member is mounted on the inner side of the first link (4); an F-shaped positioning frame (602) is mounted on the outer wall of the first link (4); an equidistant displacement member is disposed at the bottom of the F-shaped positioning frame (602); the first link (4) is connected to a welding gun (609) located below the first link (4) via the equidistant displacement member; and a rotary welding unit is mounted on a side of the F-shaped positioning frame (602) away from the first link (4); The positioning locking member comprises two movable sleeve blocks (502) movably sleeved on the guide rotating connecting rod (3), the two movable sleeve blocks (502) being symmetrically arranged along the vertical center axis of the guide rotating connecting rod (3), the side of the movable sleeve block (502) away from the first sleeve (501) being rotatably connected to an oblique connecting rod (504) connected to the first piston rod (503) via a rotating shaft, a water storage bucket (507) being installed on one side of the workbench (1), and a connecting bin (506) being installed on the top of the water storage bucket (507) The connection chamber (506) is internally slidably connected with a blocking plug (521), and the blocking plug (521) is provided with a T-shaped plug rod (520) penetrating to the outside of the connection chamber (506). The top of the connection chamber (506) is provided with a hose (505) connected to the first sleeve (501) and a guide pipe (508) connected to the sleeve (2). The bottom of the guide rotating connecting rod (3) is provided with a threaded rod (517) located inside the sleeve (2). The threaded rod (517) is sleeved with a A threaded sleeve (516) is provided, a plug (515) is installed at the bottom of the threaded sleeve (516) and is in contact with the inner wall of the sleeve (2), a telescopic rod (514) is installed at the top of the plug (515) and is connected to the top of the inner wall of the sleeve (2), a plurality of clamping plates (512) are inserted into the inner side of the first link (4) and extend to the outer side of the first link (4), the plurality of clamping plates (512) are distributed at equal distances along the center of the first link (4), and a pressing pin (519) is installed on the inner side of the clamping plate (512). ), an oblique guide rail (513) is sleeved on the pressure pin (519), a second link (509) located above the first link (4) is installed on the top of the oblique guide rail (513), a second piston rod (511) is arranged on the side of the second link (509) close to the first piston rod (503), a second sleeve (510) connected to the first piston rod (503) is sleeved on the outer side of the second piston rod (511), and a guide groove (518) is opened on the inner side of the second sleeve (510).

2. A pipeline and panel welding device for processing a Tokamak bottom cold shield according to claim 1, characterized in that: The diameter of the pressing pin (519) is equal to the inner wall width of the oblique guide rail (513), and the oblique guide rail (513) is inclined at an angle of forty-five degrees relative to the top of the workbench (1).

3. The pipeline and panel welding device for processing the Tokamak bottom cold shield according to claim 1 is characterized in that: The center of the second link (509) is coaxial with the center of the first link (4), and the inner wall diameters of the second link (509) and the first link (4) are equal.

4. The pipeline and panel welding device for processing the Tokamak bottom cold shield according to claim 1 is characterized in that: The equidistant displacement member includes an annular bin (601) installed at the bottom of an F-type positioning frame (602); a pressure rod (604) is installed on the side of the oblique guide rail (513) away from the second link (509); an annular pressure plate (603) located on the inner side of the annular bin (601) is installed at the bottom of the pressure rod (604); an annular transition bin (605) is rotatably connected to the bottom of the annular pressure plate (603); a third sleeve (607) is connected to the bottom of the annular transition bin (605); a third piston rod (608) extending to the outside of the third sleeve (607) is inserted into the interior of the third sleeve (607); a movable frame (606) slidably connected to the outer wall of the third sleeve (607) is installed at one end of the third piston rod (608); and a welding gun (609) is installed at the bottom of the movable frame (606).

5. A pipeline and panel welding device for processing a Tokamak bottom cold shield according to claim 4, characterized in that: The internal space of the annular bin (601) is equal in size to the internal space of the third sleeve (607), and the maximum moving distance of the third piston rod (608) is equal to the maximum moving distance of the clamping plate (512).

6. A pipeline and panel welding device for processing a Tokamak bottom cold shield according to claim 4, characterized in that: The annular bin (601), the annular transition bin (605), and the second chain ring (509) are coaxial in center, and a rotating sealing ring is provided at the bottom contact position between the annular transition bin (605) and the annular bin (601).

7. The pipeline and panel welding device for processing the Tokamak bottom cold shield according to claim 4 is characterized in that: The rotary welding unit comprises a mounting seat (702) mounted on a side of an F-shaped positioning frame (602) away from the first link (4); a motor (701) is mounted on the top of the mounting seat (702); an output end of the motor (701) is connected to a transmission gear plate (703) located below the mounting seat (702); a straight tooth ring (704) meshing with the transmission gear plate (703) is arranged on the top of the third sleeve (607); a protective chamber (707) located outside the T-shaped insertion rod (520) is mounted on the outer wall of the connecting chamber (506); a first contact piece (705) is mounted on the inner wall of the protective chamber (707); and a second contact piece (706) located inside the protective chamber (707) is arranged on the outer side of the T-shaped insertion rod (520).

8. The pipeline and panel welding device for processing the Tokamak bottom cold shield according to claim 7, characterized in that: The first contact piece (705) is electrically connected to the motor (701) and the welding gun (609) via a wire, and the second contact piece (706) is electrically connected to an external power source via a wire.

9. A pipe and panel welding process for processing a Tokamak bottom cold shield, characterized in that: The pipeline and panel welding device for processing the Tokamak bottom cold shield according to any one of claims 1 to 8 comprises the following steps: S1: firstly place the panel on top of the positioning support plate (8), and then move the first link (4) to the top of the welding point between the pipe fitting and the panel by operating the positioning locking member; S2: inserting the pipe to be welded into the first link (4) so ​​that the bottom of the pipe contacts the panel on the positioning support plate (8); S3: Positioning the pipe fitting by operating the position-adjusting locking member so that the center of the first link (4) is coaxial with the center of the pipe fitting, and the positioning support plate (8) is stably connected to the first link (4). In the process of operating the position-adjusting locking member to fix the pipe fitting, the equidistant displacement member operates synchronously to adjust the position of the welding gun (609) so that the position of the welding gun (609) is always equal to the connection point between the pipe fitting and the panel; S4: Using a rotating welding unit to rotate the welding gun (609) along the center of the pipe to perform welding; S5: After the pipe fitting and the panel are welded, the positioning locking member is operated to release the pipe fitting from the limit position, and then the positioning support plate (8) is disassembled. The positioning support plate (8) is then removed together with the welded pipe fitting and the panel.

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