Tooling special for processing vacuum chamber sector of fusion reactor
By designing specialized tooling for processing the vacuum chamber sector of a fusion reactor, and utilizing the combined support of the central frame and the support section, the processing and welding challenges of the hyperboloid structure components of a large magnetic confinement nuclear fusion vacuum chamber were solved, achieving high-precision surface processing and ensuring welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI METALFORMING MACHINE TOOL
- Filing Date
- 2023-05-10
- Publication Date
- 2026-06-30
Smart Images

Figure CN116275821B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of tooling technology for nuclear fusion device processing, specifically to special tooling for processing the vacuum chamber sector of a fusion reactor. Background Technology
[0002] As human demand for energy increases, nuclear fusion power generation has become the best solution. This requires the processing and manufacturing of vacuum chambers, key components of controlled thermonuclear fusion devices. Nuclear fusion devices are developing towards larger and more precise designs, and the manufacturing of hyperboloid structure components for large magnetic confinement nuclear fusion vacuum chambers requires the creation of corresponding processing tooling.
[0003] The manufacturing process of hyperboloid structural components for large magnetic confinement nuclear fusion vacuum chambers faces challenges such as difficulty in leveling the surface machining datum, high precision requirements for assembling different sector surfaces, high precision requirements for welding bevel machining, and large shrinkage deformation during welding. Corresponding machining tooling needs to be manufactured. Summary of the Invention
[0004] The purpose of this invention is to provide special tooling for processing the sector of a fusion reactor vacuum chamber, so as to meet the requirements for processing and welding the hyperboloid structure of a large magnetic confinement nuclear fusion vacuum chamber.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a special tooling for processing the sector of a fusion reactor vacuum chamber, comprising a central frame, wherein the central frame is trapezoidal, and a left support, an upper support, a right support, and a lower support are respectively installed around the central frame, the four support parts jointly supporting the hyperboloid structure component of a large magnetic confinement nuclear fusion vacuum chamber.
[0006] Preferably, the central frame includes a facing support plate, a first square steel pipe, and a perforated steel plate. The first square steel pipe forms an overall support frame for the central frame. There are two perforated steel plates, which are respectively fixedly connected to both sides of the overall support frame formed by the first square steel pipe. There are multiple facing support plates, which are evenly fixedly connected to the perimeter of the overall support frame formed by the first square steel pipe and connected to four support parts by bolts.
[0007] Preferably, the left support includes a second square steel pipe, a third square steel pipe, a left side support plate, a first clamp mounting plate, a first contour support block, a first side support plate, and a first mounting bracket. The number of the second square steel pipe and the third square steel pipe is two sets. The second square steel pipe and the third square steel pipe located on the same side are fixedly connected by the first side support plate. The two second square steel pipes are fixedly connected by the left side support plate. The first clamp mounting plate is fixedly connected to the top of the two symmetrically arranged first side support plates. The first contour support block is fixedly connected to the middle of the first clamp mounting plate. The first mounting bracket is fixedly connected to the end of the first clamp mounting plate. The left side support plate is connected to the facing support plate by bolts.
[0008] Preferably, the upper support includes a fourth square steel pipe, a fifth square steel pipe, a second clamp mounting plate, a second card seat, a second side support plate, a support steel pipe, an upper side support plate, a second contour support block, and a hydraulic jack. The fourth and fifth square steel pipes are in two sets. The fourth and fifth square steel pipes on the same side are fixedly connected by the second side support plate, and the two fifth square steel pipes are fixedly connected by the support steel pipe. The upper side support plate is fixedly connected to the lower surface of the support steel pipe. The second clamp mounting plate is fixedly connected to the upper part of two symmetrical second side support plates. The second card seat is fixedly connected to the end of the second clamp mounting plate. The second contour support block is fixedly connected to the middle of the second clamp mounting plate. Support seats are fixedly connected to the middle of the second clamp mounting plates on both sides. The hydraulic jack is fixedly connected to the middle of one of the support seats.
[0009] Preferably, the right support includes a third bracket, a third contour support block, a third clamp mounting plate, a sixth square steel pipe, a seventh square steel pipe, a right side support plate, and a third side support plate. The sixth square steel pipe and the seventh square steel pipe are in two sets. The sixth square steel pipe and the seventh square steel pipe located on the same side are fixedly connected by the third side support plate. The two sixth square steel pipes are fixedly connected by the right side support plate. The third clamp mounting plate is fixedly connected to the upper part of the two symmetrical third side support plates. The third bracket is fixedly connected to the end of the third clamp mounting plate. The third contour support block is fixedly connected to the middle part of the third clamp mounting plate.
[0010] Preferably, the lower support includes a fourth bracket, a fourth side support plate, a fourth contour support block, a lower side support plate, an eighth square steel pipe, a ninth square steel pipe, and a fourth clamp mounting plate. The eighth and ninth square steel pipes are in two sets. The eighth and ninth square steel pipes located on the same side are fixedly connected by the fourth side support plate, and the two eighth square steel pipes are fixedly connected by the lower side support plate. The fourth clamp mounting plate is fixedly connected to the bottom of the two symmetrical fourth side support plates. The fourth contour support block is fixedly connected to the middle of the fourth clamp mounting plate, and the fourth bracket is fixedly connected to the end of the fourth clamp mounting plate.
[0011] Preferably, the side support plate is composed of a first fixing plate, a fixing tube, and a second fixing plate, with the fixing tube fixedly connected between the first fixing plate and the second fixing plate.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] 1. This invention involves lifting the central frame and flipping the tooling. The position of the crane on the central frame is changed according to the lifting and flipping posture. The central frame provides support for the entire device. The left support, upper support, right support and lower support together support the hyperboloid structure component of the large magnetic confinement nuclear fusion vacuum chamber. The left support, upper support, right support and lower support can be disassembled from the central frame, which facilitates the multiple clamping and welding of the workpiece, effectively improves the assembly accuracy of different curved surfaces of the variable vacuum chamber, the processing and manufacturing accuracy of the curved structure, reduces costs and workload.
[0014] 2. By setting up a hydraulic push rod, the present invention provides external support for the welded workpiece, and the clamping seat pulls the welded shell inward to keep the outline and position of the shell unchanged.
[0015] 3. The present invention provides a preload force by welding a fourth contour support block onto the fourth clamp mounting plate to provide uniform force support for the plate.
[0016] 4. When processing the bevel of the inner shell edge, the brackets of each support part can be disassembled for easy machining. Furthermore, when processing the window, the contour support block in the middle of the shell also avoids the window processing position, making processing easier.
[0017] 5. After the beveling of each support part and the welding of the stiffener plate and the outer plate are completed, the support parts are installed on the central frame in the welding sequence to complete the welding assembly. After completing 1 / 8 ring of the hyperboloid structure component of the large magnetic confinement nuclear fusion vacuum chamber, the two side brackets are removed and 1 / 8 assembly welding is performed. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the central frame of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of the left support portion of the present invention;
[0021] Figure 4 This is a schematic diagram of the structure of the upper support portion of the present invention;
[0022] Figure 5 This is a schematic diagram of the right support portion of the present invention;
[0023] Figure 6 This is a schematic diagram of the structure of the lower support part of the present invention;
[0024] Figure 7 This is a schematic diagram of the side support plate of the present invention.
[0025] In the diagram: 1. Left support; 11. First clamping seat; 12. First side support plate; 13. First contour support block; 14. First clamp mounting plate; 15. Second square steel pipe; 16. Third square steel pipe; 17. Left side support plate; 2. Upper support; 21. Second clamp mounting plate; 22. Second clamping seat; 23. Second side support plate; 24. Upper side support plate; 25. Support base; 26. Hydraulic jack; 27. Support steel pipe; 28. Second contour support block; 29. Fourth square steel pipe; 291. Fifth square steel pipe; 3. Right support; 31. Third clamping seat; 3 2. Third contour support block; 33. Third clamp mounting plate; 34. Sixth square steel pipe; 341. Seventh square steel pipe; 35. Right side support plate; 36. Third side support plate; 4. Lower support part; 41. Fourth bracket; 42. Fourth side support plate; 43. Fourth contour support block; 44. Lower side support plate; 45. Eighth square steel pipe; 46. Ninth square steel pipe; 47. Fourth clamp mounting plate; 5. Central frame; 51. Facing support plate; 52. First square steel pipe; 53. Hollowed-out steel plate; 61. First fixing plate; 62. Fixing pipe; 63. Second fixing plate. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Example
[0028] Reference Figure 1 The present invention provides a technical solution: a special tooling for processing the sector of a fusion reactor vacuum chamber, including a central frame 5, which is trapezoidal. The central frame 5 is equipped with a left support 1, an upper support 2, a right support 3 and a lower support 4 on its four sides. The four support parts together support the hyperboloid structure components of the large magnetic confinement nuclear fusion vacuum chamber.
[0029] By lifting the central frame 5 and flipping the tooling, the position of the crane on the central frame 5 is changed according to the lifting and flipping posture. The central frame 5 provides support for the entire device. The left support part 1, the upper support part 2, the right support part 3 and the lower support part 4 jointly support the hyperboloid structure component of the large magnetic confinement nuclear fusion vacuum chamber. Moreover, the left support part 1, the upper support part 2, the right support part 3 and the lower support part 4 can be disassembled from the central frame 5, which facilitates the multiple clamping and welding of the workpiece.
[0030] Reference Figure 2 The central frame 5 includes a facing support plate 51, a first square steel pipe 52, and a perforated steel plate 53. The first square steel pipe 52 forms the overall support frame of the central frame 5. There are two perforated steel plates 53, and the two perforated steel plates 53 are respectively fixedly connected to both sides of the overall support frame formed by the first square steel pipe 52. There are multiple facing support plates 51, and the multiple facing support plates 51 are evenly fixedly connected to the perimeter of the overall support frame formed by the first square steel pipe 52 and connected to the four support parts by bolts.
[0031] The central frame 5 is composed of a first square steel pipe 52 and a facing support plate 51. The overall shape is trapezoidal. Hollow steel plates 53 are welded on both sides of the main steel pipe structure to ensure the overall strength so that the tooling can clamp and support the workpiece.
[0032] Reference Figure 3 The left support part 1 includes a second square steel pipe 15, a third square steel pipe 16, a left support plate 17, a first clamp mounting plate 14, a first contour support block 13, a first side support plate 12, and a first card seat 11. The number of second square steel pipes 15 and third square steel pipes 16 is two sets. The second square steel pipes 15 and third square steel pipes 16 located on the same side are fixedly connected by the first side support plate 12. The two second square steel pipes 15 are fixedly connected by the left support plate 17. The first clamp mounting plate 14 is fixedly connected to the top of the two symmetrically arranged first side support plates 12. The first contour support block 13 is fixedly connected to the middle of the first clamp mounting plate 14. The first card seat 11 is fixedly connected to the end of the first clamp mounting plate 14. The left support plate 17 is connected to the facing support plate 51 by bolts.
[0033] The left support part 1 is fixed to the upper left surface of the central frame 5 with a support plate 51. The main structure is welded together by the second steel pipe 15, the third steel pipe 16, the left support plate 17, and the first clamp mounting plate 14. The first clamp seat 11 is fixed to the top fixing plate by bolts and nuts, and the first contour support block 13 is welded on the first clamp mounting plate 14 to provide uniform force support for the plate. The first clamp seat 11 can be moved and adjusted along the first clamp mounting plate 14.
[0034] Reference Figure 4 The upper support 2 includes a fourth square steel pipe 29, a fifth square steel pipe 291, a second clamp mounting plate 21, a second clamping seat 22, a second side support plate 23, a support steel pipe 27, an upper side support plate 24, a second contour support block 28, and a hydraulic jack 26. There are two sets of fourth square steel pipes 29 and fifth square steel pipes 291. The fourth square steel pipe 29 and the fifth square steel pipe 291 located on the same side are fixedly connected by the second side support plate 23, and the two fifth square steel pipes 291 are connected by the support steel pipe. 27 is fixedly connected, the upper side support plate 24 is fixedly connected to the lower surface of the support steel pipe 27, the second clamp mounting plate 21 is fixedly connected to the upper part of the two symmetrical second side support plates 23, the second card seat 22 is fixedly connected to the end of the second clamp mounting plate 21, the second contour support block 28 is fixedly connected to the middle of the second clamp mounting plate 21, and the middle of the second clamp mounting plates 21 on both sides is fixedly connected to the support seat 25, and the hydraulic push rod 26 is fixedly connected to the middle of one of the support seats 25.
[0035] The upper support 2 is fixed to the upper surface support plate 51 of the central frame 5. The main structure is welded from the fourth square steel pipe 29, the fifth square steel pipe 291, the support steel pipe 27 and the upper side support plate 24. The second clamp 22 is fixed to the second clamp mounting plate 21 by bolts and nuts. The second clamp 22 can move and adjust its position along the second clamp mounting plate 21. The second contour support block 28 on the inner side of the curved panel is welded on the second clamp mounting plate 21 to provide uniform force support for the workpiece (plate). During welding, the shell will shrink inward. By setting the hydraulic push rod 26, it plays an external support role for the welded workpiece. The second clamp 22 plays the role of pulling the welded shell inward to keep the outline and position of the shell unchanged.
[0036] Reference Figure 5The right support part 3 includes a third card seat 31, a third contour support block 32, a third clamp mounting plate 33, a sixth square steel pipe 34, a seventh square steel pipe 341, a right side support plate 35, and a third side support plate 36. The sixth square steel pipe 34 and the seventh square steel pipe 341 are both in two sets. The sixth square steel pipe 34 and the seventh square steel pipe 341 located on the same side are fixedly connected by the third side support plate 36. The two sixth square steel pipes 34 are fixedly connected by the right side support plate 35. The third clamp mounting plate 33 is fixedly connected to the upper part of the two symmetrical third side support plates 36. The third card seat 31 is fixedly connected to the end of the third clamp mounting plate 33. The third contour support block 32 is fixedly connected to the middle part of the third clamp mounting plate 33.
[0037] The right support part 3 is fixed to the upper right surface support plate 51 of the central frame 5. The main structure is welded from the third clamp mounting plate 33, the sixth square steel pipe 34, the seventh square steel pipe 341, the right side support plate 35 and the third side support plate 36. The third bracket 31 is fixed to the third clamp mounting plate 33 by bolts and nuts, and the third contour support block 32 is welded on the third clamp mounting plate 33 to provide uniform force support for the plate.
[0038] Reference Figure 6 The lower support part 4 includes a fourth bracket 41, a fourth side support plate 42, a fourth contour support block 43, a lower side support plate 44, an eighth square steel pipe 45, a ninth square steel pipe 46, and a fourth clamp mounting plate 47. The eighth square steel pipe 45 and the ninth square steel pipe 46 are in two sets. The eighth square steel pipe 45 and the ninth square steel pipe 46 located on the same side are fixedly connected by the fourth side support plate 42. The two eighth square steel pipes 45 are fixedly connected by the lower side support plate 44. The fourth clamp mounting plate 47 is fixedly connected to the bottom of the two symmetrical fourth side support plates 42. The fourth contour support block 43 is fixedly connected to the middle of the fourth clamp mounting plate 47. The fourth bracket 41 is fixedly connected to the end of the fourth clamp mounting plate 47.
[0039] The lower support 4 is fixed to the lower surface support plate 51 of the central frame 5. The main structure is welded from the lower side support plate 44, the eighth square steel pipe 45, the ninth square steel pipe 46 and the fourth clamp mounting plate 47. The fourth clamp seat 41 is fixed to the end of the fourth clamp mounting plate 47 by bolts and nuts, and the fourth contour support block 43 is welded on the fourth clamp mounting plate 47 to provide uniform force support for the plate, so that the whole can provide pre-tightening force during the processing and welding process.
[0040] Reference Figure 7 The side support plate is composed of a first fixing plate 61, a fixing tube 62, and a second fixing plate 63. The fixing tube 62 is fixedly connected between the first fixing plate 61 and the second fixing plate 63.
[0041] The fixing tube 62 makes the connection between the first fixing plate 61 and the second fixing plate 63 firm. The number of fixing tubes 62 can be increased or decreased appropriately according to the height of the first fixing plate 61 and the second fixing plate 63. By setting the side support plate, the structural strength of the four support parts is made more robust.
[0042] Working principle: This special tooling for processing the vacuum chamber sector of the fusion reactor is used by lifting the central frame 5 and flipping the tooling. The position of the crane on the central frame 5 is changed according to the lifting and flipping posture. The central frame 5 provides support for the whole device. The left support part 1, the upper support part 2, the right support part 3 and the lower support part 4 together support the hyperboloid structure component of the large magnetic confinement nuclear fusion vacuum chamber. Moreover, the left support part 1, the upper support part 2, the right support part 3 and the lower support part 4 can be disassembled from the central frame 5, which facilitates the multiple clamping and welding of the workpiece.
[0043] The central frame 5 is composed of a first square steel pipe 52 and a facing support plate 51. The overall shape is trapezoidal. Hollow steel plates 53 are welded on both sides of the main steel pipe structure to ensure the overall strength so that the tooling can clamp and support the workpiece.
[0044] The left support part 1 is fixed to the upper left surface of the central frame 5 with a support plate 51. The main structure is welded together by the second steel pipe 15, the third steel pipe 16, the left support plate 17, and the first clamp mounting plate 14. The first clamp seat 11 is fixed to the top fixing plate by bolts and nuts, and the first contour support block 13 is welded on the first clamp mounting plate 14 to provide uniform force support for the plate. The first clamp seat 11 can be moved and adjusted along the first clamp mounting plate 14.
[0045] The upper support 2 is fixed to the upper surface support plate 51 of the central frame 5. The main structure is welded from the fourth square steel pipe 29, the fifth square steel pipe 291, the support steel pipe 27 and the upper side support plate 24. The second clamp 22 is fixed to the second clamp mounting plate 21 by bolts and nuts. The second clamp 22 can move and adjust its position along the second clamp mounting plate 21. The second contour support block 28 on the inner side of the curved panel is welded on the second clamp mounting plate 21 to provide uniform force support for the workpiece (plate). During welding, the shell will shrink inward. By setting the hydraulic push rod 26, it plays an external support role for the welded workpiece. The second clamp 22 plays the role of pulling the welded shell inward to keep the outline and position of the shell unchanged.
[0046] The right support part 3 is fixed to the upper right surface support plate 51 of the central frame 5. The main structure is welded from the third clamp mounting plate 33, the sixth square steel pipe 34, the seventh square steel pipe 341, the right side support plate 35 and the third side support plate 36. The third bracket 31 is fixed to the third clamp mounting plate 33 by bolts and nuts, and the third contour support block 32 is welded on the third clamp mounting plate 33 to provide uniform force support for the plate.
[0047] The lower support 4 is fixed to the lower surface support plate 51 of the central frame 5. The main structure is welded from the lower side support plate 44, the eighth square steel pipe 45, the ninth square steel pipe 46 and the fourth clamp mounting plate 47. The fourth clamp seat 41 is fixed to the end of the fourth clamp mounting plate 47 by bolts and nuts, and the fourth contour support block 43 is welded on the fourth clamp mounting plate 47 to provide uniform force support for the plate, so that the whole can provide pre-tightening force during the processing and welding process.
[0048] The fixing tube 62 makes the connection between the first fixing plate 61 and the second fixing plate 63 firm. The number of fixing tubes 62 can be increased or decreased appropriately according to the height of the first fixing plate 61 and the second fixing plate 63. By setting the side support plate, the structural strength of the four support parts is made more robust.
[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A special tool for processing a vacuum chamber sector of a fusion reactor, comprising a central frame (5), characterized in that: The central frame (5) is trapezoidal, and the central frame (5) is equipped with a left support (1), an upper support (2), a right support (3) and a lower support (4) on its four sides. The four support parts together support the hyperboloid structure components of the large magnetic confinement nuclear fusion vacuum chamber. The left support part (1) includes a second square steel pipe (15), a third third steel pipe (16), a left support plate (17), a first clamp mounting plate (14), a first contour support block (13), a first side support plate (12), and a first card seat (11). The number of the second square steel pipe (15) and the third third steel pipe (16) is two sets. The second square steel pipe (15) and the third third steel pipe (16) located on the same side are fixedly connected by the first side support plate (12). The two second square steel pipes (15) are fixedly connected by the left support plate (17). The first clamp mounting plate (14) is fixedly connected to the top of the two symmetrically arranged first side support plates (12). The first contour support block (13) is fixedly connected to the middle of the first clamp mounting plate (14). The first card seat (11) is fixedly connected to the end of the first clamp mounting plate (14). The left support plate (17) is connected to the facing support plate (51) by bolts. The upper support (2) includes a fourth square steel pipe (29), a fifth square steel pipe (291), a second clamp mounting plate (21), a second card seat (22), a second side support plate (23), a support steel pipe (27), an upper side support plate (24), a second contour support block (28), and a hydraulic jack (26). The fourth square steel pipe (29) and the fifth square steel pipe (291) are in two sets. The fourth square steel pipe (29) and the fifth square steel pipe (291) located on the same side are fixedly connected by the second side support plate (23). The two fifth square steel pipes (291) are connected by a support steel pipe. The pipe (27) is fixedly connected, the upper side support plate (24) is fixedly connected to the lower surface of the support steel pipe (27), the second clamp mounting plate (21) is fixedly connected to the upper part of the two symmetrical second side support plates (23), the second card seat (22) is fixedly connected to the end of the second clamp mounting plate (21), the second contour support block (28) is fixedly connected to the middle part of the second clamp mounting plate (21), and the middle part of the second clamp mounting plate (21) on both sides is fixedly connected to the support seat (25), and the hydraulic push rod (26) is fixedly connected to the middle part of one of the support seats (25); The right support part (3) includes a third card seat (31), a third contour support block (32), a third clamp mounting plate (33), a sixth square steel pipe (34), a seventh square steel pipe (341), a right side support plate (35), and a third side support plate (36). The sixth square steel pipe (34) and the seventh square steel pipe (341) are both in two sets. The sixth square steel pipe (34) and the seventh square steel pipe (341) located on the same side are fixedly connected by the third side support plate (36). The two sixth square steel pipes (34) are fixedly connected by the right side support plate (35). The third clamp mounting plate (33) is fixedly connected to the upper part of the two symmetrical third side support plates (36). The third card seat (31) is fixedly connected to the end of the third clamp mounting plate (33). The third contour support block (32) is fixedly connected to the middle part of the third clamp mounting plate (33). The lower support part (4) includes a fourth card seat (41), a fourth side support plate (42), a fourth contour support block (43), a lower side support plate (44), an eighth square steel pipe (45), a ninth square steel pipe (46), and a fourth clamp mounting plate (47). The eighth square steel pipe (45) and the ninth square steel pipe (46) are in two sets. The eighth square steel pipe (45) and the ninth square steel pipe (46) located on the same side are fixedly connected by the fourth side support plate (42). The two eighth square steel pipes (45) are fixedly connected by the lower side support plate (44). The fourth clamp mounting plate (47) is fixedly connected to the bottom of the two symmetrical fourth side support plates (42). The fourth contour support block (43) is fixedly connected to the middle of the fourth clamp mounting plate (47). The fourth card seat (41) is fixedly connected to the end of the fourth clamp mounting plate (47).
2. The special tooling for processing the vacuum chamber sector of a fusion reactor according to claim 1, characterized in that: The central frame (5) includes a facing support plate (51), a first square steel pipe (52), and a hollow steel plate (53). The first square steel pipe (52) forms the overall support frame of the central frame (5). There are two hollow steel plates (53), and the two hollow steel plates (53) are respectively fixedly connected to both sides of the overall support frame formed by the first square steel pipe (52). There are multiple facing support plates (51), and the multiple facing support plates (51) are evenly fixedly connected to the four sides of the overall support frame formed by the first square steel pipe (52) and connected to the four support parts by bolts.
3. The special tooling for processing the vacuum chamber sector of a fusion reactor according to claim 1, characterized in that: The side support plate is composed of a first fixing plate (61), a fixing tube (62), and a second fixing plate (63), and the fixing tube (62) is fixedly connected between the first fixing plate (61) and the second fixing plate (63).