Manufacturing tool for end socket

Abstract

The invention discloses an end socket manufacturing tool, and relates to the technical field of end socket manufacturing, and the end socket manufacturing tool comprises a plurality of first supporting pieces; the supporting platform is arranged above the multiple first supporting pieces; the adjusting device comprises a plurality of adjusting assemblies, the adjusting assemblies are arranged above the supporting platform and used for supporting melon petal assemblies forming the end socket, the multiple adjusting assemblies are mutually independent, and the height of each adjusting assembly is adjustable; and the center positioning piece is arranged above the supporting platform so as to abut against the radial inner end of the scalloped segment assembly, and the center positioning piece is in a continuously-extending ring shape. According to the manufacturing tool of the end socket, the parameters of the first supporting piece, the supporting platform, the adjusting assembly and the center positioning piece are adjusted, so that the manufacturing tool can adapt to the end sockets of different sizes and different shapes, the manufacturing tool can be used for manufacturing the large end socket, and the manufacturing precision of the large end socket is improved; and the strict requirement of the nuclear fusion device on the precision of the pressure vessel is met.

Description

Technical Field

[0001] The present invention relates to the technical field of end cap manufacturing, and more particularly to a manufacturing tool for an end cap. Background Art

[0002] Pressure vessels are core equipment in the fields of petroleum, chemical industry, energy, etc. The selection of manufacturing materials and process optimization are directly related to the safety, durability and economy of the vessels. Stainless steel has become an ideal manufacturing material for nuclear fusion pressure vessels due to its excellent corrosion resistance, high temperature resistance and excellent strength. The structure of the pressure vessel is mainly composed of a cylinder and a head. Among them, the nuclear fusion pressure vessel Dewar serves as the outermost container and pressure boundary of the nuclear fusion device, and its head diameter is usually more than 10 meters, or even 30 meters. However, in the related art, the manufacturing precision of large-sized heads with a nominal diameter greater than 10 meters is low, which makes it difficult to meet the high-precision requirements of fusion reactor pressure vessels. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a head manufacturing tool that helps improve the manufacturing accuracy of large-sized heads to meet the high-precision requirements of fusion reactor pressure vessels.

[0004] According to an embodiment of the present invention, the manufacturing tooling of the head includes: a plurality of first support members; a support platform, which is arranged above the plurality of first support members; an adjustment device, which includes a plurality of adjustment components, which are arranged above the support platform to support the melon slice components that constitute the head, and the plurality of adjustment components are independent of each other and the height of each adjustment component is adjustable; a center positioning member, which is arranged above the support platform to abut against the radial inner end of the melon slice component, and the center positioning member is a continuously extended ring.

[0005] According to the manufacturing tooling of the head in the embodiment of the present invention, the position of the melon slice assembly can be adjusted by the adjustment device and the center positioning member, so that the head formed after the multiple melon slice assemblies are connected has higher precision. Combined with the support platform and multiple first support members, the support stability of the melon slice assembly can be improved to improve the stability of the head manufacturing process. By adjusting the parameters of the first support member, the support platform, the adjustment assembly and the center positioning member, it can also adapt to heads of different sizes and shapes, so that the manufacturing tooling can be used to manufacture large heads and improve the manufacturing precision of large heads, which is conducive to meeting the strict requirements of nuclear fusion devices on the precision of pressure vessels.

[0006] In addition, the manufacturing tooling of the head according to the above embodiment of the present invention may also have the following additional technical features: According to some embodiments of the present invention, the center positioning member includes an inner ring body and an outer ring body that are nested and connected, the outer ring body is located outside the inner ring body, the outer ring body is a low-magnetic material and is suitable for abutting against the radial inner end of the melon segment assembly.

[0007] According to some embodiments of the present invention, the adjustment assembly includes a lifting drive member and a support pad, the support pad is arranged above the lifting drive member, the upper surface of the support pad is an inclined surface or an arc surface inclined downward toward the center positioning member, and the lifting drive member can be raised and lowered to adjust the distance between the support pad and the support platform.

[0008] According to some embodiments of the present invention, the adjustment assembly further includes a plurality of limit members, which are located below the support pad and evenly distributed around the lifting drive member. The height of the limit members is adjustable, and the limit members are suitable for limiting the support pad when the lifting drive member is adjusted into position.

[0009] According to some embodiments of the present invention, the adjustment assembly also includes a second support member, which is located on the upper side of the support platform and is provided on the lower side of the lifting drive member. One end of the limit member is connected to the support pad and the other end is adjustably passed through the upper surface of the second support member. The limit member has a fastened state fixedly connected to the second support member and an adjustable state in which it can move relative to the second support member.

[0010] According to some embodiments of the present invention, the adjustment device further comprises a plurality of annular supports, which are nested and spaced apart in the radial direction, and a plurality of the adjustment assemblies spaced apart in the circumferential direction are provided on the upper side of each annular support.

[0011] According to some embodiments of the present invention, the support platform includes a plurality of connecting beams, and the plurality of connecting beams include a plurality of first connecting beams extending along a first direction and a plurality of second connecting beams extending along a second direction. At least some of the first connecting beams intersect and are connected with the second connecting beams. The plurality of first connecting beams arranged along the first direction are connected in sequence, and the plurality of second connecting beams arranged along the second direction are connected in sequence, and the first direction intersects with the second direction.

[0012] According to some embodiments of the present invention, the support platform further includes a reinforcing beam, the extension direction of the reinforcing beam intersects or is parallel to the extension direction of the connecting beam, and both ends of the reinforcing beam are connected to at least one of the connecting beams.

[0013] According to some embodiments of the present invention, the support platform further includes an extension beam, which is connected to the connecting beam and / or the reinforcing beam. A support structure is provided on the upper side of the extension beam, and the support structure is used to support the outer periphery of the head.

[0014] According to some embodiments of the present invention, a plurality of first support members are spaced apart along the first direction and / or the second direction to define at least two through channels, and the through channels extend along the first direction or the second direction, and the first direction intersects the second direction.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which: Figure 1 2. It is a schematic diagram of the coordination structure of the manufacturing tooling and the head according to an embodiment of the present invention; Figure 2 is a structural schematic diagram of a manufacturing tool according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a head according to an embodiment of the present invention at one viewing angle; Figure 4 is a structural schematic diagram of a head according to an embodiment of the present invention from another perspective; Figure 5 is a schematic structural diagram of a melon wedge assembly according to an embodiment of the present invention, wherein a rib plate is shown; Figure 6 is a structural schematic diagram of a melon slice assembly according to an embodiment of the present invention; Figure 7 is a structural schematic diagram of a center positioning member according to an embodiment of the present invention; Figure 8 2 is a schematic structural diagram of an adjustment component according to an embodiment of the present invention.

[0017] Reference numerals: Head 200; melon wedge assembly 210; inner ring wedge 2101; outer ring wedge 2102; rib plate 2103; backflow hole 2104; central cylinder 220; Manufacturing tooling 100; First support member 10; through channel 11; Support platform 20; connecting beam 21; first connecting beam 211; second connecting beam 212; reinforcing beam 22; Adjusting device 30; adjusting assembly 31; lifting drive member 311; supporting pad 312; limiting member 313; second supporting member 314; annular supporting member 32; third supporting member 321; Central positioning member 40; inner ring body 41; outer ring body 42; mounting base plate 43; annular rib plate 44. DETAILED DESCRIPTION

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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, and therefore should not be understood as limiting the present invention.

[0020] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and diagonally above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0021] The following describes a manufacturing tool 100 for a head 200 according to an embodiment of the present invention with reference to the accompanying drawings.

[0022] Reference Figures 1-8 As shown, the manufacturing tool 100 of the head 200 according to the embodiment of the present invention may include a first support member 10 , a support platform 20 , an adjustment device 30 and a center positioning member 40 .

[0023] The manufacturing tool 100 is used to support the multiple melon segment assemblies 210 of the head 200 so as to precisely connect the multiple melon segment assemblies 210 together to form the head 200. The multiple melon segment assemblies 210 can be welded together, that is, the manufacturing tool 100 can be used to weld the multiple melon segment assemblies 210 together to form the head 200 and improve the manufacturing accuracy of the head 200, for example, to make the surface profile, outer diameter, inner diameter, roundness, height and other parameters of the head 200 meet the expected size requirements of the design process. For example, in some embodiments, such as Figures 1-6 As shown, the head 200 includes a central cylinder 220 and a plurality of melon segment assemblies 210 located radially outside the central cylinder 220. The manufacturing tool 100 is used to support the plurality of melon segment assemblies 210 so that the plurality of melon segment assemblies 210 can be connected to the central cylinder 220 to form the head 200. The head 200 is connected to the cylinder to form a pressure vessel.

[0024] Specifically, there are multiple first support members 10, and the support platform 20 is disposed above the multiple first support members 10. The first support members 10 can be disposed on the ground, making the first support members 10 stable and less prone to shaking. The multiple first support members 10 can more stably support the support platform 20, making the support platform 20 less prone to shaking and providing a better support effect for the support platform 20.

[0025] The adjustment device 30 includes multiple adjustment assemblies 31, which are positioned above the support platform 20. These assemblies 31 are designed to prevent wobbling and provide improved stability. The adjustment assemblies 31 are used to support the melon segment assemblies 210 that comprise the head 200, preventing them from wobbling and providing greater stability. Each melon segment assemblies 210 can be supported by one or more adjustment assemblies 31, ensuring stable support for each segment 210 and improving manufacturing stability during the manufacturing process of the head 200.

[0026] The multiple adjustment assemblies 31 are independent of each other, and each adjustment assembly 31 is height-adjustable. By adjusting the height of each adjustment assembly 31, the height of each melon segment assembly 210 can be adjusted at various locations, thereby achieving higher precision in the connection between adjacent melon segment assemblies 210. For example, by independently adjusting the height of each adjustment assembly 31 to adjust the height of each melon segment assembly 210 at various locations, the roundness and height parameters of adjacent melon segment assemblies 210 after connection can be adjusted to meet desired dimensional requirements, thereby achieving higher precision in the head 200 formed by multiple melon segment assemblies 210.

[0027] The melon segment assembly 210 generally bends downwardly and extends from the radially outer side toward the radially inner side, so the melon segment assembly 210 supported on the adjustment assembly 31 easily slides from the radially outer side to the radially inner side. The centering member 40 is disposed above the support platform 20 to abut against the radially inner end of the melon segment assembly 210. The centering member 40 can be used to position the melon segment assembly 210, making it less likely to slide and thereby improving the support stability of the melon segment assembly 210.

[0028] The center positioning member 40 is a continuously extending ring, which enables the multiple melon segment assemblies 210 constituting the head 200 to abut against the center positioning member 40. The center positioning member 40 positions the multiple melon segment assemblies 210 supported by the adjustment device 30, thereby improving the manufacturing accuracy of the head 200. The ring in this application can be a circular ring, a polygonal ring, or other ring-shaped ring.

[0029] For example, in some embodiments, Figure 1-Figure 7 As shown, the center positioning member 40 is a continuously extended perfect circular ring, which can make the radial inner end faces of the multiple melon segment assemblies 210 offset against the perfect circular ring, so that the shape formed by the radial outer end faces of the multiple melon segment assemblies 210 is closer to a perfect circle, thereby improving the roundness accuracy of the head 200, and also facilitating the subsequent more precise connection of the multiple melon segment assemblies 210 with the central cylinder 220 after connection, thereby improving the overall manufacturing accuracy and strength of the head 200.

[0030] The center positioning member 40 can not only serve as a reference for connecting multiple melon-shaped components 210 to form the head 200, but also serve as a reference for the subsequent connection of the head 200 with the cylinder, so that the geometric centers of the cylinder and the head 200 are relative to each other in the up and down directions and then connected to form a pressure vessel, which is beneficial to improving the manufacturing accuracy of the pressure vessel.

[0031] Therefore, the support platform 20 can be supported more stably by multiple first support members 10, the upper adjustment device 30 can be installed more stably by the support platform 20, the height of each melon slice assembly 210 can be adjusted in the up and down directions by the adjustment device 30, and each melon slice assembly 210 can be positioned radially by the center positioning member 40 so that the radial inner ends of the multiple melon slice assemblies 210 form a ring, which is conducive to making the connection accuracy of the multiple melon slice assemblies 210 higher and the manufacturing accuracy of the formed head 200 higher.

[0032] In addition, the size, quantity, position and other parameters of the first support member 10 and the adjustment assembly 31 can be adjusted, and the size and other parameters of the support platform 20 and the center positioning member 40 can be adjusted to support melon slice assemblies 210 of different sizes, shapes and quantities, which is conducive to adapting to the manufacture of heads 200 of different sizes and shapes. Therefore, the manufacturing tool 100 of the present application can be used to manufacture large-sized large heads 200 to improve the manufacturing accuracy of large heads 200, such as improving the manufacturing accuracy of large-sized heads 200 with a nominal diameter greater than 10 meters. Of course, the manufacturing tool 100 of the present application can also be used to manufacture small-sized small heads 200 to improve the manufacturing accuracy of small heads 200, and has a wider range of applications and greater practicality.

[0033] According to the manufacturing tool 100 of the head 200 in an embodiment of the present invention, the position of the melon slice assembly 210 can be adjusted through the adjustment device 30 and the center positioning member 40, so that the head 200 formed after multiple melon slice assemblies 210 are connected has higher precision. Combined with the support platform 20 and multiple first support members 10, the support stability of the melon slice assembly 210 can be improved to improve the stability of the head 200 manufacturing process. By adjusting the parameters of the first support member 10, the support platform 20, the adjustment assembly 31 and the center positioning member 40, it can also adapt to heads 200 of different sizes and shapes, so that the manufacturing tool 100 can be used to manufacture large heads 200 and improve the manufacturing precision of large heads 200, which is conducive to meeting the strict requirements of nuclear fusion devices on the precision of pressure vessels.

[0034] For example, in some specific embodiments, the nominal diameter of the head 200 is denoted as D. When the head 200 is manufactured using the manufacturing tool 100 of the present application, the roundness of the head 200 can be less than or equal to 25 mm. The melon slice assembly 210 is pressed from steel, and the thickness of the steel after pressing is denoted as δ. When the head 200 is manufactured using the manufacturing tool 100 of the present application, when δ / D ≥ 0.005, the roundness of the head 200 can be less than or equal to 0.5%×D and less than or equal to 25 mm. When δ / D < 0.005 and δ < 12 mm, the roundness of the head 200 can be less than or equal to 0.8%×D and less than or equal to 25 mm.

[0035] The connection between the two components in this application can be one or more of the following connection methods: bolt connection, welding, riveting, clamping, etc. For example, in some embodiments, Figure 1-Figure 2 As shown, the support platform 20 is arranged above the first support member 10 through bolt connection, the adjustment component 31 is arranged above the support platform 20 through bolt connection, and the center positioning member 40 is arranged above the support platform 20 through bolt connection, and the connection strength is relatively high.

[0036] In some embodiments of the present invention, Figure 1-Figure 2 and Figure 7 As shown, the centering member 40 includes an inner ring body 41 and an outer ring body 42 that are nested and connected, with the outer ring body 42 located outside the inner ring body 41. The outer ring body 42 is made of a low-magnetic material and is capable of abutting against the radial inner end of the melon segment assembly 210. For example, the outer ring body 42 is made of stainless steel, nylon, etc., which can reduce the risk of contamination of the head 200, thereby improving the safety of the head 200 in the nuclear fusion device and maintaining the stability of the magnetic field in the nuclear fusion device.

[0037] The inner ring body 41 and the outer ring body 42 can increase the thickness of the center positioning member 40, making it less susceptible to deformation. This improves the stability of positioning the multiple melon segment assemblies 210 and helps improve the manufacturing accuracy of the head 200. The inner ring body 41 does not directly contact the melon segment assemblies 210, so it can be manufactured from inexpensive materials, which helps to achieve both high strength and low cost requirements for the center positioning member 40, and is highly practical.

[0038] In some embodiments, as Figure 1-Figure 2 and Figure 7 As shown, the center positioning member 40 further includes a mounting base 43, and the inner ring body 41 and the outer ring body 42 are nested and connected to the mounting base 43. The mounting base 43 is connected to the support platform 20 by bolts, which provides high connection strength. The mounting base 43 can also increase the contact area between the center positioning member 40 and the support platform 20, thereby further improving the connection strength between the center positioning member 40 and the support platform 20.

[0039] In some embodiments, the center positioning member 40 also includes an annular rib 44, which is connected to the inner circumferential surface of the inner ring body 41 and to the mounting base plate 43. The annular rib 44 can improve the overall strength of the center positioning member 40, making the center positioning member 40 less likely to deform, and making the radial positioning effect of multiple melon segment assemblies 210 more reliable.

[0040] In the embodiment where the inner ring body 41 and the outer ring body 42 are welded, the coaxiality and cylindricity of the inner ring body 41 and the outer ring body 42 can be measured after welding to reduce the risk of excessive welding deformation of the inner ring body 41 and the outer ring body 42 affecting subsequent positioning accuracy. If the measured coaxiality and cylindricity do not meet the standards, post-weld machining can be performed to ensure that the benchmark meets the accuracy requirements.

[0041] In some embodiments of the present invention, Figure 1-Figure 2 and Figure 8As shown, the adjustment assembly 31 includes a lifting drive 311 and a support pad 312. The support pad 312 is provided above the lifting drive 311. The lifting drive 311 can be raised and lowered to adjust the distance between the support pad 312 and the support platform 20. That is, the height of the support pad 312 can be adjusted by the lifting drive 311 to adjust the height of the melon segment assembly 210 above the support pad 312. The lifting drive 311 can achieve height adjustment through at least one of a cylinder, a gear rack structure, an electric push rod, etc. For example, in some specific embodiments, Figure 2 and Figure 8 As shown, the lifting drive member 311 is a jack.

[0042] The upper surface of the support pad 312 is an inclined surface or an arc surface that tilts downward toward the center positioning member 40, so that the support pad 312 can adapt to the shape of the outer surface of the melon slice assembly 210 that bends and extends downward from the radial outside toward the radial inner diameter, which is beneficial to reducing the stress concentration between the support pad 312 and the melon slice assembly 210, and reducing the risk of the melon slice assembly 210 slipping on the support pad 312, so as to improve the support stability of the support pad 312 on the melon slice assembly 210.

[0043] In some embodiments, as Figure 1-Figure 2 and Figure 8 As shown, the adjustment assembly 31 further includes a plurality of limit members 313, which are located below the support pad 312 and are evenly distributed around the circumference of the lifting drive member 311. This means that the plurality of limit members 313 are located radially outward from the lifting drive member 311 and are evenly arranged along the circumference of the lifting drive member 311, so that the lifting drive member 311 is located in the middle of the plurality of limit members 313, for example Figure 8 There are four limiting members 313 evenly distributed around the lifting drive member 311. The multiple limiting members 313 can limit the bottom surface of the support pad 312 to the same plane, making the support pad 312 less likely to tilt as a whole, thereby improving the support stability of the support pad 312 on the melon slice assembly 210.

[0044] The height of the limiter 313 is adjustable, and the limiter 313 can limit the support pad 312 when the lifting drive 311 is adjusted into place. Adjustment into place here means that the height of the support pad 312 is adjusted by the lifting drive 311 to the height of the melon slice assembly 210 supported by the support pad 312 to meet the expected size requirements of the design process. The height of the limiter 313 can change as the lifting drive 311 is raised and lowered, so that in the process of raising and lowering the lifting drive 311 to adjust the height of the support pad 312, multiple limiters 313 always limit the bottom surface of the support pad 312 to the same plane, so that the support pad 312 is not easy to tilt during the height adjustment process, and the support effect on the melon slice assembly 210 is better.

[0045] In some embodiments, as Figure 1-Figure 2 and Figure 8 As shown, the adjustment assembly 31 also includes a second support member 314, which is located on the upper side of the support platform 20 and is provided on the lower side of the lifting drive member 311. One end of the limit member 313 is connected to the support pad 312 and the other end is adjustably passed through the upper surface of the second support member 314. The height of the support pad 312 can be increased by the second support member 314, so that in the process of transporting the melon slice assembly 210 to the top of the support pad 312, the melon slice assembly 210 is not easily scratched with the support platform 20 and other structures on the lower side, which is beneficial to protecting the melon slice assembly 210. The lifting drive member 311 and multiple limit members 313 can also be installed on the second support member 314, which is convenient for installation. For example, in some embodiments, such as Figure 8 As shown, the lifting drive member 311 is arranged in the central area of ​​the upper surface of the second support member 314 and is connected to the central area of ​​the lower surface of the support pad 312, so that the support pad 312 is not easy to shake during the process of adjusting the height of the support pad 312 by the lifting drive member 311, and the adjustment of the height of the support pad 312 is more stable.

[0046] The limiter 313 has a fastened state and an adjustable state. In the fastened state, the limiter 313 is fixedly connected to the second support member 314; in the adjustable state, the limiter 313 and the second support member 314 can move relative to each other. During the lifting and lowering process of the lifting drive 311, the distance between the support pad 312 and the second support member 314 changes, causing the limiter 313 to switch to the adjustable state. This allows the portion of the limiter 313 located below the upper surface of the second support member 314 to extend toward the upper surface of the second support member 314, thereby changing the size of the limiter 313 between the support pad 312 and the second support member 314 as the lifting drive 311 rises and falls. When the lifting drive 311 adjusts the limiter 313 into place, the limiter 313 switches to the fastened state, ensuring that the size of the limiter 313 between the support pad 312 and the second support member 314 remains fixed.

[0047] Therefore, by switching the state of the limiter 313 between the tightening state and the adjustment state, the limiter 313 can adapt to the change in the height of the support pad 312 to always limit the support pad 312, thereby providing better support for the melon slice assembly 210.

[0048] For example, in some embodiments, Figure 2 and Figure 8As shown, the limiter 313 includes a screw and a double nut structure. The upper end of the screw is welded to the support pad 312, and the lower end is inserted into the upper surface of the second support member 314. The double nut structure is threadedly connected to the screw and is located on the upper side of the second support member 314. When the lifting drive 311 increases the height of the support pad 312, the limiter 313 can be directly moved upward. When the lifting drive 311 decreases the height of the support pad 312, the double nut structure can be loosened and rotated upward, causing the limiter 313 to move downward as the support pad 312 moves downward. When the lifting drive 311 adjusts the limiter 313 into position, the double nut structure can be tightened to press the lower end of the double nut structure against the second support member 314, preventing the limiter 313 from moving downward. This fixes the size of the limiter 313 between the support pad 312 and the second support member 314, thereby limiting and supporting the support pad 312.

[0049] In some embodiments, as Figure 1-Figure 2 As shown, the adjustment device 30 further includes a plurality of annular support members 32, which are arranged in a radially spaced and nested manner. A plurality of adjustment assemblies 31 are provided on the upper side of each annular support member 32 and are arranged in a circumferentially spaced manner. The radial and circumferential directions herein refer to the radial and circumferential directions of the head 200. The annular support members 32 may be in the shape of a circular ring, a polygonal ring, or other annular ring.

[0050] Through the multiple adjustment assemblies 31 on each annular support member 32, the multiple melon segment assemblies 210 can be supported and height-adjusted along the circumferential direction, so that the multiple melon segment assemblies 210 are connected with higher precision along the circumferential direction, for example, the heights of the multiple melon segment assemblies 210 at the annular support member 32 are equal. Through the multiple adjustment assemblies 31 on the multiple annular support members 32, different parts of the melon segment assemblies 210 can be supported and height-adjusted along the radial direction, so that the multiple melon segment assemblies 210 are connected with higher precision along the circumferential direction, for example, the heights of the multiple melon segment assemblies 210 at each annular support member 32 are equal. By arranging multiple annular support members 32 in a radially spaced and nested manner, the connection precision of adjacent melon segment assemblies 210 can be improved along the circumferential and radial directions, which helps to improve the overall manufacturing precision of the head 200.

[0051] In some embodiments, as Figure 1-Figure 2 As shown, the annular support member 32 includes a plurality of third support members 321 connected in sequence along the circumferential direction. The size of the annular support member 32 can be adjusted by adjusting the number of the third support members 321, so that the structural design of the annular support member 32 is more flexible, which is convenient for adapting to the size of the large head 200 and also helps to reduce the manufacturing difficulty of the annular support member 32.

[0052] In some embodiments of the present invention, Figure 1-Figure 2As shown, the support platform 20 includes a plurality of connecting beams 21, and the plurality of connecting beams 21 include a plurality of first connecting beams 211 and a plurality of second connecting beams 212. The first connecting beams 211 extend in a first direction (eg Figure 1-Figure 2 The second connecting beam 212 extends in the second direction (eg Figure 1-Figure 2 The first connecting beams 211 extend in the front-to-back direction (shown in the figure). At least some of the first connecting beams 211 intersect and connect with the second connecting beams 212. Multiple first connecting beams 211 arranged along the first direction are sequentially connected, and multiple second connecting beams 212 arranged along the second direction are sequentially connected. The first direction intersects the second direction, that is, the angle between the first direction and the second direction is not zero.

[0053] For example, in some specific embodiments, Figure 1-Figure 2 As shown, the support platform 20 includes five rows of connecting beams 21 and five columns of connecting beams 21, each row of connecting beams 21 includes a plurality of first connecting beams 211 connected along the left-right direction, each column of connecting beams 21 includes a second connecting beam 212 extending along the front-back direction, and each row of connecting beams 21 intersects and is connected with each column of connecting beams 21.

[0054] The support platform 20 is formed by a plurality of first connecting beams 211 and a plurality of second connecting beams 212, making it easy to disassemble, adjust the layout, or expand later. For example, by changing the number of first connecting beams 211 and the spacing between adjacent first connecting beams 211, changing the number of second connecting beams 212 and the spacing between adjacent second connecting beams 212, changing the angle between the first direction and the second direction, etc., the size and shape of the support platform 20 can be adjusted to accommodate the size and shape of different heads 200, thereby enhancing practicality. Furthermore, the support platform 20 can be formed into a frame shape, making it lightweight and easy to transport.

[0055] In some embodiments, as Figure 1-Figure 2 As shown, the support platform 20 further includes a reinforcement beam 22. The extension direction of the reinforcement beam 22 intersects or is parallel to the extension direction of the connecting beam 21. Both ends of the reinforcement beam 22 are connected to at least one connecting beam 21. That is, any end of the reinforcement beam 22 can be connected to one, two, three, or more connecting beams 21. The connecting beams 21 can improve the overall strength of the support platform 20 and increase the surface area of ​​the support platform 20, so that other structures such as the adjustment device 30 can be arranged on the reinforcement beam 22, which helps to improve the overall strength and stability of the manufacturing tool 100.

[0056] For example, in some specific embodiments, Figure 1-Figure 2As shown, the first connecting beam 211 extends in the left-right direction, the second connecting beam 212 extends in the front-to-back direction, a portion of the reinforcing beam 22 extends from the left front to the right rear and both ends are simultaneously connected to the two connected first connecting beams 211 and the second connecting beams 212, a portion of the reinforcing beam 22 extends from the left rear to the right front and both ends are simultaneously connected to the two connected first connecting beams 211 and the second connecting beams 212, and another portion of the reinforcing beam 22 extends in the front-to-back direction and both ends are simultaneously connected to the two first connecting beams 211.

[0057] In some embodiments, the support platform 20 further includes an extension beam (not shown in the figure), which can be connected to at least one of the connecting beam 21 and the reinforcing beam 22 located on the outside to increase the size of the support platform 20. For example, in some specific embodiments, such as Figure 1-Figure 2 As shown, the extension beam can be connected to the left end of the outermost first connecting beam 211, the right end of the outermost first connecting beam 211, the front end of the outermost second connecting beam 212, the rear end of the outermost second connecting beam 212, and both ends of the outermost reinforcing beam 22 to increase the size of the support platform 20 in the left and right directions and the front and back directions. The extension beam is connected to the connecting beam 21 by bolts, and the extension beam is connected to the reinforcing beam 22 by bolts.

[0058] A support structure is provided on the upper side of the extension beam. This structure is used to support the outer periphery of the head 200, thereby supporting and limiting the radial outer end of the head 200. For example, the support structure abuts against the outer periphery of the head 200 to apply a radially inward force to the outer periphery of the head 200, thereby preventing the head 200 from shaking. This results in a more stable manufacturing process for the head 200, reduced manufacturing errors, and higher manufacturing precision. The extension section can be connected to at least one of the connecting beam 21 and the reinforcing beam 22 to increase the size of the support platform 20 along the extension direction of the connecting beam 21 and the reinforcing beam 22, thereby expanding the installation space for installing the support structure and limiting the outer periphery of the head 200.

[0059] In some embodiments, the end cap 200 includes a base and straight-side segments. The base includes a central cylinder 220 and a plurality of wedge assemblies 210. The straight-side segments are located above the base and connected to the periphery of the base. The support structure can apply radially inward pressure to the outer surface of the straight-side segments along the circumference to support the straight-side segments, thereby improving the overall stability of the end cap 200 during the manufacturing process.

[0060] The supporting structure can be used not only to support the outer periphery of the head 200 , but also to support other structures.

[0061] In some embodiments of the present invention, Figure 1-Figure 2As shown, a plurality of first support members 10 are arranged at intervals along at least one of the first direction and the second direction to define at least two through-channels 11, the through-channels 11 extending along the first direction or the second direction, and the first direction intersects the second direction. For example, at least three first support members 10 are arranged at intervals along the first direction, and a through-channel 11 extending along the second direction can be defined between two adjacent first support members 10, thereby defining at least two through-channels 11. For example, among the plurality of first support members 10, at least three first support members 10 are arranged at intervals along the first direction, and at least three first support members 10 are arranged at intervals along the second direction, thereby defining two through-channels 11 extending along the first direction and two through-channels 11 extending along the second direction.

[0062] For example, in some embodiments, Figure 1-Figure 2 As shown, the manufacturing tool 100 includes nine first support members 10, which are arranged in three rows along the front-to-back direction. Each row includes three first support members 10 arranged in the left-to-right direction. The first support members 10 in two adjacent rows along the front-to-back direction are opposite to each other in the front-to-back direction, forming a matrix structure of three rows and three columns. A through channel 11 extending in the front-to-back direction is defined between two adjacent first support members 10 in the left-to-right direction. A through channel 11 extending in the left-to-right direction is defined between two adjacent first support members 10 in the front-to-back direction. Figure 2 The nine first support members 10 shown define two through passages 11 extending in the front-to-rear direction and two through passages 11 extending in the left-to-right direction.

[0063] Through the through channel 11, a transfer component can be arranged under the support platform 20 to transfer the manufacturing tooling 100 as a whole. For example, after the head 200 is manufactured on the manufacturing tooling 100, the head 200 and the manufacturing tooling 100 can be transferred as a whole to proceed to the next step, which is convenient to operate.

[0064] The following describes a method for manufacturing a head 200 using a manufacturing tool 100 according to a specific embodiment of the present invention, and the manufactured head 200. It is worth noting that the following description is merely illustrative and should not be construed as a limitation to the invention.

[0065] The manufacturing method of the head 200 according to the embodiment of the present invention includes the following steps: S1: Place multiple melon segment assemblies 210 on the manufacturing tool 100 , with the melon segment assemblies 210 placed on the upper side of the adjustment assembly 31 , with the radial inner ends of the melon segment assemblies 210 abutting against the central positioning member 40 .

[0066] The sealing head 200 includes a plurality of melon segment assemblies 210, one of which is usually welded last as the closing plate. Therefore, the plurality of melon segment assemblies 210 in S1 are the other melon segment assemblies 210 constituting the sealing head 200 except the closing plate.

[0067] S2: Adjust the height of the adjustment component 31 to adjust the position of the corresponding melon segment component 210, so that the allowable gap at the butt weld of adjacent melon segment components 210 is less than or equal to 5 mm, the allowable deviation at the butt weld of adjacent melon segment components 210 is less than or equal to 2 mm, and the overall roundness of the multiple melon segment components 210 on the manufacturing tool 100 is less than or equal to 10 mm.

[0068] For example, the butt welds between adjacent melon slice components 210 adopt a single V-shaped groove, so that the allowable gap at the butt weld is no more than 5 mm and the allowable misalignment is no more than 2 mm.

[0069] S3: Adjacent melon segment assemblies 210 are fixed at the butt welds by using horse plates for spot welding.

[0070] Fixing adjacent melon segment assemblies 210 by spot welding with horse plates can reduce the deformation effect of the melon segment assemblies 210 during subsequent welding and improve the manufacturing accuracy of the head 200.

[0071] S4: performing bottom welding on the plurality of melon slice components 210 on the manufacturing tool 100.

[0072] The bottom pass welding can be done by tungsten inert gas welding with shielding gas on the back of the weld. A 6mm gap can be reserved as the bottom pass for the bottom pass welding.

[0073] S5: Determine the size of the door closing plate according to the size of the head 200 and the size of the plurality of melon slice assemblies 210 on the manufacturing tool 100.

[0074] The door closing plate and the plurality of melon slice components 210 on the manufacturing tool 100 form the head 200. The size data of each melon slice of the head 200 can be measured by a three-dimensional coordinate scanner to determine the size of the door closing plate.

[0075] After welding the multiple melon-segment components 210 on the manufacturing tooling 100, the size of the door closing plate is determined according to the size of the head 200 and the remaining space on the manufacturing tooling 100 to manufacture the door closing plate, and then the door closing plate is placed on the manufacturing tooling 100 and welded to other melon-segment components 210. The door closing plate can absorb errors such as processing errors and installation errors, thereby improving the accuracy of the head 200.

[0076] S6: Manufacture the door closing plate, place the door closing plate on the upper side of the adjustment assembly 31 , and abut the radial inner end of the door closing plate against the central positioning member 40 .

[0077] S7: Adjust the height of the adjustment component 31 to adjust the position of the corresponding door closing plate, so that the allowable gap at the butt weld between the door closing plate and the adjacent melon segment component 210 is less than or equal to 5 mm, the allowable misalignment at the butt weld between the door closing plate and the adjacent melon segment component 210 is less than or equal to 2 mm, and the overall roundness of the head 200 is less than or equal to 10 mm.

[0078] S8: The door closing plate and the adjacent melon segment assembly 210 are fixed at the butt weld by using horse plate spot welding.

[0079] S9: Perform bottom welding on the door closing plate and the adjacent melon segment assembly 210.

[0080] S10: Carry out welding of the head 200 assembly, adjust the welding sequence by adopting a symmetrical staggered segmented welding method, and weld the melon slice assembly 210 and the door closing plate on the manufacturing tooling 100.

[0081] Symmetrical staggered segmented welding: Symmetrical welding refers to welding simultaneously or alternately on both sides of the head 200's structure, staggered welding refers to a discontinuous, skipped welding sequence, and segmented welding refers to dividing a long weld into several smaller sections. By rationally adjusting the welding sequence through symmetrical staggered segmented welding, stress concentration and deformation can be effectively reduced. The welding rod is then filled with a cap. After welding, vibration aging treatment is performed to eliminate residual stress.

[0082] S11: The central cylinder 220 of the sealing head 200 is arranged radially inward of the melon segment assembly 210 and the door closing plate.

[0083] In some embodiments, the lower end of the central cylinder 220 that contacts the melon segment assembly 210 is intermittently provided with a plurality of arc holes for cleaning backflow.

[0084] S12: Perform nondestructive testing on the weld of the head 200 and perform magnetic permeability testing on the head 200.

[0085] The weld and magnetic permeability test results must meet the requirements. If they do not meet the requirements, they must be repaired in accordance with the corresponding repair procedures.

[0086] S12: Measure and record the surface profile, outer circumference, inner diameter and height of the head 200.

[0087] like Figure 1 and Figure 3-Figure 6 As shown, according to the head 200 of an embodiment of the present invention, the head 200 is obtained by using the above-mentioned manufacturing tool 100 and the above-mentioned manufacturing method. The head 200 includes a central cylinder 220 and a plurality of melon segment assemblies 210 arranged and connected along the circumferential direction. The central cylinder 220 is located radially inside the plurality of melon segment assemblies 210 and is connected one by one to the plurality of melon segment assemblies 210.

[0088] In some embodiments, as Figure 1 and Figure 3-Figure 6 As shown, each melon segment assembly 210 includes an inner ring segment 2101 located radially inward, two outer ring segments 2102 located radially outward and arranged circumferentially, and a plurality of ribs 2103 located axially on one side of the inner ring segment 2101 and the outer ring segment 2102. The inner ring segment 2101, the two outer ring segments 2102, and the ribs 2103 are welded to form the melon segment assembly 210. The inner ring segment 2101 and the outer ring segment 2102 are staggered, and the plurality of ribs 2103 include radially extending ribs 2103 and circumferentially extending ribs 2103, which help to improve the structural strength of the melon segment assembly 210. The rib plate 2103 is provided with a backflow hole 2104 at the joint between the inner ring petal 2101 and the outer ring petal 2102. The backflow hole 2104 can be used to avoid the welds between the inner ring petal 2101 and the outer ring petal 2102, and can also be used for backflow, which is convenient for subsequent cleaning of the head 200, such as cleaning the head 200 with a cleaning agent.

[0089] The head 200 is manufactured using the above-mentioned manufacturing tool 100 and the above-mentioned manufacturing method. The position of the melon slice assembly 210 can be adjusted by adjusting the adjustment device 30 and the center positioning member 40 in the manufacturing tool 100, so that the accuracy of the head 200 formed after multiple melon slice assemblies 210 are connected is better. Combined with the support platform 20 and multiple first support members 10, the support stability of the melon slice assembly 210 can be improved to improve the stability of the head 200 manufacturing process. By adjusting the parameters of the first support member 10, the support platform 20, the adjustment assembly 31 and the center positioning member 40, it can also adapt to heads 200 of different sizes and shapes, so that the manufacturing tool 100 can be used to manufacture large heads 200 and improve the manufacturing accuracy of large heads 200, which is conducive to meeting the strict requirements of nuclear fusion devices on the accuracy of pressure vessels.

[0090] The manufacturing tool 100 of the head 200 according to the embodiment of the present invention, the manufacturing method of the head 200 and other structures and operations of the head 200 are all known to ordinary technicians in this field and will not be described in detail here.

[0091] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0092] Throughout this specification, reference to terms such as "embodiment," "specific embodiment," and "example" indicates that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0093] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A manufacturing tool for a head, characterized in that: include: a plurality of first support members (10); a supporting platform (20), the supporting platform (20) being arranged above the plurality of first supporting members (10); An adjustment device (30), the adjustment device (30) comprising a plurality of adjustment components (31), the adjustment components (31) being arranged above the support platform (20) for supporting the melon segment components (210) constituting the head (200), the plurality of adjustment components (31) being independent of each other and the height of each adjustment component (31) being adjustable; A center positioning member (40) is provided above the support platform (20) to abut against the radial inner end of the melon segment assembly (210), and the center positioning member (40) is in the shape of a continuously extending ring.

2. The manufacturing tool for the head according to claim 1, characterized in that: The center positioning member (40) comprises an inner ring body (41) and an outer ring body (42) that are nested and connected, wherein the outer ring body (42) is located outside the inner ring body (41), and the outer ring body (42) is made of a low-magnetic material and is suitable for abutting against the radial inner end of the melon segment assembly (210).

3. The manufacturing tool for the head according to claim 1, characterized in that: The adjustment assembly (31) includes a lifting drive member (311) and a support pad (312), wherein the support pad (312) is arranged above the lifting drive member (311), and the upper surface of the support pad (312) is an inclined surface or an arc surface that is inclined downward toward the center positioning member (40), and the lifting drive member (311) can be raised and lowered to adjust the distance between the support pad (312) and the support platform (20).

4. The manufacturing tool for the head according to claim 3, characterized in that: The adjustment assembly (31) further includes a plurality of limiting members (313), wherein the plurality of limiting members (313) are located below the support pad (312) and are evenly distributed around the circumference of the lifting drive member (311), and the height of the limiting members (313) is adjustable. The limiting members (313) are suitable for limiting the support pad (312) when the lifting drive member (311) is adjusted into position.

5. The manufacturing tool for the head according to claim 4, characterized in that: The adjustment assembly (31) further includes a second support member (314), the second support member (314) being located on the upper side of the support platform (20) and being provided on the lower side of the lifting drive member (311), one end of the limit member (313) being connected to the support pad (312) and the other end being adjustably provided on the upper surface of the second support member (314), and the limit member (313) having a fastened state in which it is fixedly connected to the second support member (314) and an adjustable state in which it is relatively movable with respect to the second support member (314).

6. The manufacturing tool for the head according to claim 4, characterized in that: The adjustment device (30) further comprises a plurality of annular support members (32), wherein the plurality of annular support members (32) are arranged in a radially spaced and nested manner, and the upper side of each annular support member (32) is provided with a plurality of the adjustment assemblies (31) arranged in a circumferentially spaced manner.

7. The manufacturing tool for the head according to claim 1, characterized in that: The support platform (20) includes a plurality of connecting beams (21), the plurality of connecting beams (21) including a plurality of first connecting beams (211) extending along a first direction and a plurality of second connecting beams (212) extending along a second direction, at least some of the first connecting beams (211) intersect and are connected with the second connecting beams (212), the plurality of first connecting beams (211) arranged along the first direction are connected in sequence, and the plurality of second connecting beams (212) arranged along the second direction are connected in sequence, and the first direction intersects with the second direction.

8. The manufacturing tool for the head according to claim 7, characterized in that: The support platform (20) further comprises a reinforcing beam (22), the extension direction of the reinforcing beam (22) intersecting with or parallel to the extension direction of the connecting beam (21), and both ends of the reinforcing beam (22) being connected to at least one connecting beam (21).

9. The manufacturing tool for the head according to claim 8, characterized in that: The support platform (20) further comprises an extension beam connected to the connection beam (21) and / or the reinforcement beam (22); a support structure is provided on the upper side of the extension beam, and the support structure is used to support the outer periphery of the head (200).

10. The manufacturing tool for the head according to any one of claims 1 to 8, characterized in that: A plurality of the first support members (10) are spaced apart along a first direction and / or a second direction to define at least two through-channels (11), wherein the through-channels (11) extend along the first direction or the second direction, and the first direction intersects the second direction.

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