Fixing tool for welding and assembling modular vacuum chamber

Abstract

The invention relates to the technical field of welding fixing tools, and discloses a modular vacuum chamber welding assembly fixing tool which comprises a chassis and a stand column frame fixed to the top of the chassis, a positioning disc is fixedly connected to the top of the stand column frame, and the outer surface of the positioning disc is arranged to be an arc-shaped concave face making contact with the bottom of a vacuum chamber shell. Sixteen welding grooves are formed in the outer surface of the arc-shaped concave surface. According to the fixing tool for welding and assembling the modular vacuum chamber, through the arrangement of the positioning assembly, the bottom of a fan-shaped vacuum chamber shell at the top of the positioning disc can be positioned, and the follow-up fixing fluency through the fixing assembly and the positioning performance of the fan-shaped vacuum chamber shell are guaranteed; according to the fixing tool, the fan-shaped vacuum chamber shell on the positioning disc can be fastened, the positioning performance and stability of the vacuum chamber shell during welding machining are guaranteed, the occupied area of the fixing tool on the interior of the vacuum chamber is reduced, and the convenience of follow-up machining of the vacuum chamber shell is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding and fixing tools, and specifically to a fixing tool for modular vacuum chamber welding and assembly. Background Art

[0002] The vacuum chamber is a key component of the magnetic confinement fusion main machine, and has functions such as providing an ultra-high vacuum environment for high-temperature plasma, providing support for internal components, and providing the first shield for nuclear radiation. Since the volume of the fusion reactor vacuum chamber is relatively large, it is currently impossible to achieve integral molding. Therefore, it needs to be segmented into multiple sectors, and then multiple sectors are welded to form a complete fusion reactor vacuum chamber; the fusion reactor vacuum chamber is generally divided into 8 sectors of 45 degrees, and each sector of 45 degrees is further divided into two sectors of 22.5 degrees. The two sectors of 22.5 degrees are in a vertical state at the assembly site and are welded into a sector of 45 degrees through a machined joint area.

[0003] In the related art, the Chinese invention patent with the publication number of CN116275821A discloses a special tool for processing the sectors of the fusion reactor vacuum chamber. By lifting the central frame to flip the tool, the central frame provides support for the whole device. The left support part, the upper support part, the right support part and the lower support part jointly support the hyperbolic structure parts of the large magnetic confinement nuclear fusion vacuum chamber. The left support part, the upper support part, the right support part and the lower support part can be disassembled from the central frame, so as to facilitate the sub-clamping and welding of the workpiece, effectively improve the assembling accuracy of different curved surfaces of the variable vacuum chamber, the processing and manufacturing accuracy of the curved surface structure, reduce costs and workload; However, there are certain defects in the use of the above special tool. For example, although the special tool provides support for the whole device through the central frame, and the left support part, the upper support part, the right support part and the lower support part support and fix the fan-shaped vacuum chamber shell, since its multiple support components basically completely fill the internal cavity of the vacuum chamber, it affects subsequent welding or milling correction processing. Moreover, when the special tool is in use, it can only process the fan-shaped vacuum chamber shell and cannot fix and position the vacuum chamber shell assembled by multiple sectors, resulting in problems of limited use. Summary of the Invention

[0004] (I) Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a fixing tooling for modular vacuum chamber welding and assembly. Through the setting of the positioning component, the bottom of the fan-shaped vacuum chamber housing on the top of the positioning disk can be positioned, ensuring the smoothness of its subsequent fixation by the fixing component and the positioning of the fan-shaped vacuum chamber housing. Through the setting of the fixing component, the fan-shaped vacuum chamber housing on the positioning disk can be fastened, ensuring its positioning and stability during welding processing, and reducing the occupied area of the fixing tooling inside the vacuum chamber, improving the convenience of its subsequent processing. It solves the problem that the existing tooling components seriously occupy the internal cavity of the vacuum chamber, thus affecting subsequent welding or milling correction processing. Moreover, when this special tooling is used, it can only process the fan-shaped vacuum chamber housing and cannot fix and position the vacuum chamber housing assembled by multiple sectors, resulting in limitations in use.

[0005] (2) Technical solution To achieve the above object, the present invention provides the following technical solution: A fixing tooling for modular vacuum chamber welding and assembly, including a chassis and a column frame fixed on the top of the chassis. The top of the column frame is fixedly connected with a positioning disk. The outer surface of the positioning disk is set as an arc-shaped concave surface in contact with the bottom of the vacuum chamber housing, and sixteen welding grooves are opened on the outer surface of the arc-shaped concave surface. A control groove is opened between the inside of the positioning disk and the column frame, and a fixing component for fixing the fan-shaped vacuum chamber housing during the welding process is arranged inside the control groove; Sixteen positioning components are arranged on the outer surface of the column frame. The positioning component includes a guiding column fixed on the bottom of the positioning disk and an L-shaped positioning frame slidably connected to the outer surface of the guiding column. One side of the L-shaped positioning frame is slidably connected to the outer surface of the column frame; A control component is arranged on the column frame. The control component includes a first hydraulic telescopic cylinder for jacking and driving the L-shaped positioning frame.

[0006] Preferably, the fixing component includes a rotating sleeve rotatably connected to the top of the positioning disk, and a rotating shaft is arranged inside the rotating sleeve. Connecting frames are fixedly connected to the outer surfaces of the top ends of the rotating shaft and the rotating sleeve. Fixing parts are arranged at one ends of the two connecting frames. The bottom ends of the rotating shaft and the rotating sleeve both extend into the control groove. The bottom end of the rotating shaft is rotatably connected to the inside of the control groove through a bracket, and a rotating part for symmetrically rotating the rotating shaft and the rotating sleeve is arranged inside the control groove.

[0007] Preferably, the fixing member includes a U-shaped frame fixed to one end of the connecting frame. A fixing plate is rotatably connected inside the U-shaped frame. Two arc-shaped bayonets for clamping the fan-shaped vacuum chamber housing are formed on one side of the fixing plate. A hanging hole is formed at one end of the fixing plate. A limiting block for limiting the fixing plate in a horizontal state is fixedly connected inside the U-shaped frame.

[0008] Preferably, the rotating member includes first bevel gears fixed to the rotating shaft and the rotating sleeve. The two first bevel gears are symmetrically arranged. A second bevel gear is rotatably connected to the inner surface of the control groove through a rotating shaft, and the outer surfaces of the second bevel gears are engaged with the outer surfaces of the two first bevel gears. A first motor is fixedly connected inside the control groove, and the output shaft of the first motor is fixedly connected to the bottom end of the rotating shaft.

[0009] Preferably, an activity groove is formed inside the guiding column, and two moving plates are slidably connected to the top of the inner wall of the activity groove. Triangular clamping blocks are fixedly connected to the outer sides of the two moving plates. One ends of the two triangular clamping blocks extend to the outside of the guiding column. An elastic member is fixedly connected between the two moving plates; Hinged frames are hinged to the bottoms of the two moving plates, and a control plate is hinged between the bottom ends of the two hinged frames.

[0010] Preferably, the control assembly includes an annular frame that can be driven up and down. A sliding frame is slidably connected to the inner surface of the annular frame in a circumferential sliding manner. The first hydraulic telescopic cylinder is fixed to the top of the sliding frame.

[0011] Preferably, a toothed ring frame is fixedly connected to the bottom of the annular frame. A second motor is fixedly connected to the top of the sliding frame, and a driving gear engaged with the outer surface of the toothed ring frame is fixedly connected to the output shaft of the second motor.

[0012] Preferably, a cross jacking frame is slidably connected inside the control groove. Four ends of the cross jacking frame extend to the outside of the column frame, and the four ends of the cross jacking frame are fixedly connected to the annular frame. A second hydraulic telescopic cylinder for driving the cross jacking frame up and down is fixedly connected inside the control groove; Sixteen steel ropes are fixedly connected to the top of the annular frame, and the top ends of the sixteen steel ropes are respectively fixedly connected to the control plates in the sixteen positioning components.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a fixing tool for modular vacuum chamber welding and assembly, which has the following beneficial effects: 1. By controlling the lifting of the L-shaped positioning frame in the positioning component by the control component, the bottom of the fan-shaped vacuum chamber housing at the top of the positioning disk can be positioned, ensuring the smoothness of its subsequent fixation by the fixing component and the positioning of the fan-shaped vacuum chamber housing. Through the setting of the rotating part in the fixing component, the rotating shaft and the rotating sleeve can be symmetrically rotated and driven. Furthermore, the two fixing parts can be driven to move relatively or away from each other through the two connecting frames. Through the fan-shaped movement of the two fixing parts in the opposite direction, the fan-shaped vacuum chamber housing on the positioning disk can be fastened, ensuring its positioning and stability during welding processing, and reducing the occupied area of the fixing tooling inside the vacuum chamber, improving the convenience of its subsequent processing.

[0014] 2. The present invention drives the driving gear to rotate forward and backward by the second motor. Through the forward and backward rotation of the driving gear, it can roll on the outer surface of the toothed ring frame, drive the sliding frame to move along the circular track of the annular frame, and further drive the first hydraulic telescopic cylinder to perform circular motion, meeting the driving of the positioning components at different positions, realizing the positioning work of assembling vacuum chamber housings with different fan-shaped angles, and improving the positioning after local assembly.

[0015] 3. The present invention drives the cross-shaped lifting frame to move up and down by the second hydraulic telescopic cylinder, and further drives the annular frame to move up and down. Through the downward movement of the annular frame, sixteen steel ropes can be driven to move downward, and further drive the control plates in the sixteen positioning components to move downward, causing the sixteen guide columns to simultaneously lose the locking of the L-shaped positioning frame. With the cooperation of the gravity of the L-shaped positioning frame itself, a contraction and reset work can be formed, facilitating the subsequent conversion of the welded and assembled vacuum chamber by a crane, and having good self-unfolding and storage functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the fixing tooling for modular vacuum chamber welding and assembly of the present invention; Figure 2 is a schematic working diagram of the fixing tooling for modular vacuum chamber welding and assembly of the present invention; Figure 3 For the present invention Figure 1 sectional schematic diagram; Figure 4 For the present invention Figure 2 coordination schematic diagram of the positioning disk, fixing component and vacuum chamber housing in the present invention; Figure 5 For the present invention Figure 3 structural schematic diagram of the fixing component in the present invention; Figure 6 For the present invention Figure 5 structural schematic diagram of the fixing part in the present invention; Figure 7 For the present invention Figure 1Schematic structural diagram of the positioning component in the middle; Figure 8 For the present invention Figure 7 Bottom view of the structure of the positioning component in the middle; Figure 9 For the present invention Figure 8 Schematic cooperation diagram of the positioning component and the control component in the middle; Figure 10 For the present invention Figure 9 Schematic cross-sectional view of the guide post in the middle.

[0017] In the figure: 1, chassis; 2, column frame; 3, positioning disk; 4, vacuum chamber housing; 5, welding groove; 6, control groove; 7, fixing component; 71, rotating sleeve; 72, rotating shaft; 73, connecting frame; 74, fixing piece; 741, U-shaped frame; 742, fixing plate; 743, arc-shaped bayonet; 744, limiting block; 75, rotating part; 751, first bevel gear; 752, second bevel gear; 753, first motor; 8, positioning component; 81, guide post; 82, L-shaped positioning frame; 83, moving plate; 84, triangular clamping block; 85, elastic part; 86, hinged frame; 87, control plate; 9, control component; 91, first hydraulic telescopic cylinder; 92, annular frame; 93, sliding frame; 94, toothed ring frame; 95, second motor; 96, driving gear; 97, cross jacking frame; 98, second hydraulic telescopic cylinder; 99, steel wire rope. Detailed implementation manners

[0018] 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.

[0019] Embodiment 1: Refer to the attached Figures 1-10 , a fixing tool for modular vacuum chamber welding and assembly, including a chassis 1 and a column frame 2 fixed to the top of the chassis 1. A positioning disk 3 is fixedly connected to the top of the column frame 2. The outer surface of the positioning disk 3 is set as an arc-shaped concave surface in contact with the bottom of the vacuum chamber housing 4, and sixteen welding grooves 5 are opened on the outer surface of the arc-shaped concave surface. A control groove 6 is opened between the inside of the positioning disk 3 and the column frame 2, and a fixing component 7 for fixing the fan-shaped vacuum chamber housing 4 during welding is arranged inside the control groove 6; The positioning plate 3 is used to preliminarily position the bottom of the fan-shaped vacuum chamber shell 4 during the assembly process. Sixteen welding grooves 5 are provided on the outer surface of the positioning plate 3, and the sixteen welding grooves 5 correspond to the welding gaps of the fan-shaped vacuum chamber shells 4 when they are assembled in pairs, so as to facilitate the comprehensive welding processing of the fan-shaped vacuum chamber shells 4 through the welding grooves 5; The fixing assembly 7 is used to position and fasten the fan-shaped vacuum chamber shell 4 during welding and assembly, thereby ensuring the stability and positioning of the two fan-shaped vacuum chamber shells 4 during welding and reducing the error that occurs during welding. Sixteen positioning components 8 are arranged on the outer surface of the column frame 2. The positioning components 8 include a guide column 81 fixed to the bottom of the positioning plate 3 and an L-shaped positioning frame 82 slidably connected to the outer surface of the guide column 81. One side of the L-shaped positioning frame 82 is slidably connected to the outer surface of the column frame 2. The sixteen positioning components 8 are used to position the sixteen sector-shaped vacuum chamber shells 4 respectively. By lifting the L-shaped positioning frame 82 upward, the bottom of the sector-shaped vacuum chamber shell 4 on the top of the positioning plate 3 can be positioned to ensure the smoothness of the subsequent fixing by the fixing component 7 and the positioning of the sector-shaped vacuum chamber shell 4. A control assembly 9 is provided on the column frame 2, and the control assembly 9 includes a first hydraulic telescopic cylinder 91 for lifting and driving the L-shaped positioning frame 82; The first hydraulic telescopic cylinder 91 is connected to an external power supply and a control switch, and is used to drive the L-shaped positioning frame 82 in the positioning assembly 8 to lift upward. By lifting the L-shaped positioning frame 82 upward, the fan-shaped vacuum chamber shell 4 hoisted on the positioning plate 3 can be positioned to ensure the stability of the fan-shaped vacuum chamber shell 4 during and after subsequent welding.

[0020] See attached Figures 4 to 6 The fixing assembly 7 includes a rotating sleeve 71 rotatably connected to the top of the positioning plate 3, and a rotating shaft 72 is arranged inside the rotating sleeve 71, and the outer surfaces of the rotating shaft 72 and the top of the rotating sleeve 71 are fixedly connected to a connecting frame 73, and one end of the two connecting frames 73 is provided with a fixing member 74, and the bottom ends of the rotating shaft 72 and the rotating sleeve 71 extend to the inside of the control groove 6, and the bottom end of the rotating shaft 72 is rotatably connected to the inside of the control groove 6 through a bracket, and a rotating member 75 for symmetrically rotating the rotating shaft 72 and the rotating sleeve 71 is arranged inside the control groove 6; Through the setting of the rotating member 75, the rotating shaft 72 and the rotating sleeve 71 can be symmetrically rotationally driven. Furthermore, the two fixing members 74 can be driven to move relatively or away from each other through the two connecting frames 73. Through the sector-shaped movement of the two fixing members 74 in opposite directions, the sector-shaped vacuum chamber housing 4 on the positioning disk 3 can be fastened, ensuring its positioning and stability during welding processing. Moreover, the occupied area of the fixing tooling inside the vacuum chamber is reduced, improving the convenience of its subsequent processing.

[0021] Refer to the appendix Figure 6 , the fixing member 74 includes a U-shaped frame 741 fixed to one end of the connecting frame 73. A fixing plate 742 is rotatably connected inside the U-shaped frame 741. Two arc-shaped clamping openings 743 for clamping the sector-shaped vacuum chamber housing 4 are provided on one side of the fixing plate 742. A lifting hole is provided at one end of the fixing plate 742. A limiting block 744 for limiting the fixing plate 742 in the horizontal state is fixedly connected inside the U-shaped frame 741; By providing two arc-shaped clamping openings 743 on one side of the fixing plate 742, through the provision of the two arc-shaped clamping openings 743, it is convenient to tightly clamp the inner and outer sides of the sector-shaped vacuum chamber housing 4. With the symmetrical movement of the fixing plates 742 in the two fixing members 74, the sector-shaped vacuum chamber housing 4 on the positioning disk 3 can be fastened and positioned, ensuring its stability and positioning during welding processing and reducing errors during the welding process; By installing the fixing plate 742 inside the U-shaped frame 741 in a hinged and rotatable manner, when it comes to the later stage of assembling the vacuum chamber housing 4, it is convenient to lift the fixing plate 742 through the position of the lifting hole of the fixing plate 742 with a crane, causing the fixing plate 742 to contract vertically upwards. Furthermore, it is convenient for the later closed-loop assembly of the vacuum chamber housing 4. Through the setting of the limiting block 744, it is used to limit the fixing plate 742 after it is horizontally unfolded, ensuring its stability after unfolding.

[0022] Refer to the appendix Figure 5 , the rotating member 75 includes first bevel gears 751 fixed to the rotating shaft 72 and the rotating sleeve 71. The two first bevel gears 751 are symmetrical. The inner surface of the control groove 6 is rotatably connected to a second bevel gear 752 through a rotating shaft, and the outer surfaces of the second bevel gears 752 are engaged with the outer surfaces of the two first bevel gears 751. A first motor 753 is fixedly connected inside the control groove 6, and the output shaft of the first motor 753 is fixedly connected to the bottom end of the rotating shaft 72; The first motor 753 is connected to an external power supply and a control switch. It is a conical rotor motor with forward and reverse rotation, having the functions of forward and reverse rotation and power-off self-locking, and is used to drive the rotating shaft 72 to rotate forward and backward; By rotating the rotating shaft 72, the first bevel gear 751 connected thereto can be driven to rotate. Since the second bevel gear 752 meshes with the outer surfaces of the two first bevel gears 751, when the first bevel gear 751 rotates, the first bevel gear 751 on the outer surface of the rotating sleeve 71 can be driven to rotate by the second bevel gear 752, and it rotates in the opposite direction. Furthermore, the rotating sleeve 71 can be driven to rotate in the opposite direction, forming a symmetric rotation operation; By the symmetric rotation of the rotating shaft 72 and the rotating sleeve 71, the two fixing members 74 can be driven to move through the two connecting frames 73, thereby realizing the fastening of the side of the fan-shaped vacuum chamber housing 4, and ensuring its stability and positioning during the welding process.

[0023] Refer to the appendix Figure 10 As shown in the figure, an activity groove is formed inside the guide post 81, and the top of the inner wall of the activity groove is slidably connected with two moving plates 83. The outer sides of the two moving plates 83 are fixedly connected with triangular clamping blocks 84. One end of each of the two triangular clamping blocks 84 extends to the outside of the guide post 81, and an elastic member 85 is fixedly connected between the two moving plates 83; The elastic member 85 adopts an elastic component in the prior art, including but not limited to springs, metal elastic sheets, elastic materials, etc., which is used to squeeze the two moving plates 83, so that the two moving plates 83 move away from each other. Furthermore, the two triangular clamping blocks 84 can be driven to extend outwards, so as to lock the L-shaped positioning frame 82 after upward jacking movement, ensuring the stability of the L-shaped positioning frame 82 after jacking, and further improving the stability and positioning of the L-shaped positioning frame 82 for the fan-shaped vacuum chamber housing 4 during or after assembly; Hinged frames 86 are hinged to the bottoms of the two moving plates 83, and a control plate 87 is hinged between the bottoms of the two hinged frames 86; By driving the control plate 87 to move downward through the control component 9, the two hinged frames 86 can be driven to move in opposite directions, and finally the two triangular clamping blocks 84 can be driven to move into the guide post 81, losing the locking of the L-shaped positioning frame 82. Combining with the gravity of the L-shaped positioning frame 82 itself, it can reset downward, facilitating the subsequent transfer of the assembled vacuum chamber by a crane.

[0024] Embodiment 2: Different from Embodiment 1; Refer to the appendix Figure 8 and Figure 9 As shown in the figure, the control component 9 includes an annular frame 92 that can be driven up and down. The inner surface of the annular frame 92 is slidably connected in a circumferential sliding manner with a sliding frame 93, and the first hydraulic telescopic cylinder 91 is fixed to the top of the sliding frame 93; The sliding frame 93 slides on the inner surface of the annular frame 92 in a circular sliding manner, so as to drive the conversion of the position of the first hydraulic telescopic cylinder 91 through the circumferential sliding of the sliding frame 93, and meet the driving work of the positioning components 8 at different positions.

[0025] A toothed ring frame 94 is fixedly connected to the bottom of the annular frame 92. A second motor 95 is fixedly connected to the top of the sliding frame 93, and a driving gear 96 meshing with the outer surface of the toothed ring frame 94 is fixedly connected to the output shaft of the second motor 95; The second motor 95 is connected to an external power supply and a control switch, and is a forward and reverse motor. It is set in the connection method and manner of the existing technology, and is used to drive the driving gear 96 to rotate forward and backward. Through the forward and backward rotation of the driving gear 96, it can roll on the outer surface of the toothed ring frame 94, drive the sliding frame 93 to move along the annular track of the annular frame 92, and then drive the first hydraulic telescopic cylinder 91 to perform an annular motion, meet the driving of the positioning components 8 at different positions, realize the positioning work of assembling them into the vacuum chamber shell 4 with different sector angles, improve the positioning after local assembly and the positioning during subsequent assembly.

[0026] Embodiment 3: Different from Embodiment 1; Refer to the attached Figures 8 to 10 A cross jacking frame 97 is slidably connected inside the control groove 6. The four ends of the cross jacking frame 97 extend to the outside of the column frame 2, and the four ends of the cross jacking frame 97 are fixedly connected to the annular frame 92. A second hydraulic telescopic cylinder 98 for driving the cross jacking frame 97 up and down is fixedly connected inside the control groove 6; The second hydraulic telescopic cylinder 98 is connected to an external power supply and a control switch, and is set in the existing connection method and coding method, and is used to drive the cross jacking frame 97 to move up and down. Through the up and down movement of the cross jacking frame 97, the annular frame 92 can be driven to move up and down, forming the driving work of multiple positioning components 8; Sixteen steel ropes 99 are fixedly connected to the top of the annular frame 92. The tops of the sixteen steel ropes 99 are respectively fixedly connected to the control plates 87 in the sixteen positioning components 8; Through the downward movement of the annular frame 92, the sixteen steel ropes 99 can be driven to move downward, and then the control plates 87 in the sixteen positioning components 8 can be driven to move downward, so that the sixteen guide posts 81 lose the locking of the L-shaped positioning frame 82 synchronously. Cooperating with the gravity of the L-shaped positioning frame 82 itself, the contraction and reset work can be formed, which is convenient for subsequent conversion of the welded and assembled vacuum chamber by a crane, and has good self-unfolding and storage functions.

[0027] It should be noted that the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements that are inherent to such process, method, article, or apparatus. Without further limitation, an element qualified by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing tool for modular vacuum chamber welding and assembly, comprising a chassis (1) and a column frame (2) fixed to the top of the chassis (1), characterized in that: A positioning plate (3) is fixedly connected to the top of the column frame (2); the outer surface of the positioning plate (3) is arranged as an arc-shaped concave surface in contact with the bottom of the vacuum chamber shell (4); and the outer surface of the arc-shaped concave surface is provided with sixteen welding grooves (5); a control groove (6) is provided between the positioning plate (3) and the inside of the column frame (2); and a fixing component (7) for fixing the fan-shaped vacuum chamber shell (4) during welding is provided inside the control groove (6); Sixteen positioning components (8) are arranged on the outer surface of the column frame (2), and the positioning components (8) include a guide column (81) fixed to the bottom of the positioning plate (3) and an L-shaped positioning frame (82) slidably connected to the outer surface of the guide column (81), and one side of the L-shaped positioning frame (82) is slidably connected to the outer surface of the column frame (2); A control component (9) is provided on the column frame (2), and the control component (9) comprises a first hydraulic telescopic cylinder (91) for driving the L-shaped positioning frame (82) to lift.

2. The fixed tooling for modular vacuum chamber welding and assembly according to claim 1, characterized in that: The fixing assembly (7) comprises a rotating sleeve (71) rotatably connected to the top of the positioning plate (3), and a rotating shaft (72) is arranged inside the rotating sleeve (71), and the outer surfaces of the tops of the rotating shaft (72) and the rotating sleeve (71) are fixedly connected to a connecting frame (73), and one end of the two connecting frames (73) is provided with a fixing member (74), and the bottom ends of the rotating shaft (72) and the rotating sleeve (71) extend to the inside of the control groove (6), and the bottom end of the rotating shaft (72) is rotatably connected to the inside of the control groove (6) through a bracket, and a rotating member (75) for symmetrically rotating the rotating shaft (72) and the rotating sleeve (71) is arranged inside the control groove (6).

3. The fixing tooling for modular vacuum chamber welding and assembly according to claim 2, characterized in that: The fixing member (74) comprises a U-shaped frame (741) fixed to one end of the connecting frame (73); a fixing plate (742) is rotatably connected to the inside of the U-shaped frame (741); two arc-shaped bayonet holes (743) for clamping the fan-shaped vacuum chamber shell (4) are provided on one side of the fixing plate (742); a hanging hole is provided at one end of the fixing plate (742); and a limiting block (744) for limiting the fixing plate (742) in a horizontal state is fixedly connected to the inside of the U-shaped frame (741).

4. A fixing tool for modular vacuum chamber welding and assembly according to claim 2, characterized in that: The rotating member (75) comprises a first bevel gear (751) fixed to the rotating shaft (72) and the rotating sleeve (71), the two first bevel gears (751) being symmetrical, the inner surface of the control groove (6) being rotatably connected to the second bevel gear (752) via the rotating shaft, and the outer surfaces of the second bevel gear (752) are meshed with the outer surfaces of the two first bevel gears (751), the interior of the control groove (6) is fixedly connected to a first motor (753), and the output shaft of the first motor (753) is fixedly connected to the bottom end of the rotating shaft (72).

5. The fixture for fixing modular vacuum chamber welding and assembly according to claim 1, characterized in that: An activity groove is formed inside the guiding column (81), and the top of the inner wall of the activity groove is slidably connected with two moving plates (83). Triangular clamping blocks (84) are fixedly connected to the outer sides of the two moving plates (83). One end of each of the two triangular clamping blocks (84) extends to the outside of the guiding column (81). An elastic member (85) is fixedly connected between the two moving plates (83); Hinge frames (86) are hinged to the bottoms of the two moving plates (83), and a control plate (87) is hinged between the bottoms of the two hinge frames (86).

6. The fixed tooling for modular vacuum chamber welding and assembly according to claim 5, characterized in that: The control assembly (9) includes an annular frame (92) that can be driven up and down. A sliding frame (93) is slidably connected to the inner surface of the annular frame (92) in a circumferential sliding manner. The first hydraulic telescopic cylinder (91) is fixed to the top of the sliding frame (93).

7. A fixing tool for modular vacuum chamber welding and assembly, as claimed in claim 6, wherein: A toothed ring frame (94) is fixedly connected to the bottom of the annular frame (92). A second motor (95) is fixedly connected to the top of the sliding frame (93), and a driving gear (96) meshing with the outer surface of the toothed ring frame (94) is fixedly connected to the output shaft of the second motor (95).

8. A fixing tool for modular vacuum chamber welding and assembly according to claim 6, characterized in that: A cross-shaped jacking frame (97) is slidably connected to the inside of the control groove (6). Four ends of the cross-shaped jacking frame (97) extend to the outside of the column frame (2), and the four ends of the cross-shaped jacking frame (97) are fixedly connected to the annular frame (92). A second hydraulic telescopic cylinder (98) for driving the cross-shaped jacking frame (97) up and down is fixedly connected to the inside of the control groove (6); Sixteen steel ropes (99) are fixedly connected to the top of the annular frame (92). The tops of the sixteen steel ropes (99) are respectively fixedly connected to the control plates (87) in the sixteen positioning assemblies (8).

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