Machining methods and tooling for irregularly shaped melt-filled rings

Abstract

This application discloses a processing method and tooling for an irregularly shaped molten filling ring. The processing method includes: Step 1, directly using machining equipment to rough machine the first end face of a workpiece blank; Step 2, using tooling to clamp and fix the workpiece blank, and rough machining the outer side surface; Step 3, finishing machining the inclined surface and the flat surface of the first end face; Step 4, changing the tooling to clamp and fix the workpiece blank, and finishing machining the second end face; Step 5, finishing machining the outer first inclined surface and the outer second inclined surface; Step 6, changing the tooling to clamp and fix the workpiece blank, and finishing machining the inner flat surface. This application, through the processing method and tooling for the irregularly shaped molten filling ring, manufactures the irregularly shaped molten filling ring by machining, making it relatively easy to produce such rings.

Description

Technical Field

[0001] This application relates to the field of nuclear power equipment technology, and in particular to a processing method and tooling for an irregularly shaped molten filling ring. Background Technology

[0002] In existing reactor types such as Hualong One, the control rod drive mechanism requires the use of Y-shaped fusion filler rings as filler material when performing Canopy welds on the reactor pressure vessel and top cover tube seat. Currently, the manufacturing of Y-shaped fusion filler rings mostly involves drawing thin wires into shape and then bending them into rings. Due to the unique cross-sectional shape of the Y-shaped fusion filler ring (Y-shaped, hence also called Y-ring) and its high dimensional accuracy, manufacturing it through drawing is extremely difficult, necessitating the development of new technologies. Summary of the Invention

[0003] The purpose of this application is to provide a processing method and tooling for irregularly shaped melt-filled rings, which can relatively easily manufacture irregularly shaped melt-filled rings.

[0004] To achieve the above objectives, this application adopts the following technical solution.

[0005] This application provides a method for processing an irregularly shaped molten filling ring. The irregularly shaped molten filling ring has a Y-shaped axial cross-section and includes a body portion and a first inclined portion and a second inclined portion extending outward from the body portion towards both end faces. It has an outer first inclined surface, an outer second inclined surface, a first end face inclined surface, a first end face plane, a second end face inclined surface, a second end face plane, and an inner plane. The processing method of the irregularly shaped molten filling ring includes:

[0006] Step 1: Roughly machine the first end face of the workpiece blank using machining equipment to form the first end face inclined surface, the first end face plane and the inner side plane in a primary state. The workpiece blank includes at least the outer side surface, the first end face and the second end face.

[0007] Step 2: The workpiece blank is clamped and fixed using a tooling fixture, and the outer side is rough-machined to form the initial state of the first outer inclined surface and the second outer inclined surface. The tooling fixture includes a base and a pressure plate. The base includes a bottom plate and a protrusion located at the center of the bottom plate. The workpiece blank is fitted onto the protrusion, exposing the outer side, the first end inclined surface, and the first end plane. The second end face abuts against the bottom plate, the inner plane abuts against the protrusion, and the edge of the pressure plate abuts against a portion of the first end plane. The workpiece blank is clamped and fixed between the pressure plate and the bottom plate by bolts and nuts.

[0008] Step 3: Finish the first end face bevel and the first end face plane to form the final state of the first end face bevel and the first end face plane;

[0009] Step four: Change the tooling to clamp and fix the workpiece blank, and finish machine the second end face to form the final state of the second end face bevel and the second end face plane; the tooling also includes a washer ring, the axial section of the washer ring is L-shaped, including a connected radial part and an axial part, the radial part is clamped between the first end face plane and the base plate, the axial part is clamped between the inner side plane and the protrusion, exposing the outer first bevel, the outer second bevel and the second end face, the edge of the pressure plate abuts against part of the second end face, and the pressure plate and the base plate are clamped and fixed by bolts and nuts;

[0010] Step 5: Refine the outer first inclined surface and the outer second inclined surface to form the final state of the outer first inclined surface and the outer second inclined surface, and also form the first inclined portion and the second inclined portion;

[0011] Step Six: Change the tooling to clamp and fix the workpiece blank, and finish machine the inner plane to form the final state of the inner plane, which also forms the body part, thereby obtaining the irregular shaped melting and filling ring; the tooling also includes a pressure ring, which includes an annular part and a barb extending from the annular part inward. The free end of the barb has a receiving space between it and the annular part. The pressure ring replaces the pressure plate. The free end of the barb abuts against a portion of the second end face plane. The first inclined part and the second inclined part are received in the receiving space, exposing the inner plane. The annular part and the base plate are clamped and fixed by bolts and nuts.

[0012] In one embodiment, the tooling further includes a gasket, which is clamped between the inner plane and the protrusion in step two.

[0013] In one embodiment, the workpiece blank is a tube or a bar, and the shaped molten filler ring is a solder.

[0014] In one embodiment, before step one is performed, the workpiece blank is straightened; step one also includes rough machining of the outer surface.

[0015] In one embodiment, after step six, the irregularly shaped melt-filled ring is measured using a coordinate measuring machine. If the measurement result does not meet the product requirements, it is reworked or determined to be scrap.

[0016] This application also provides a tooling for processing a non-circular molten filling ring as described above, for clamping and fixing a workpiece blank. The non-circular molten filling ring has a Y-shaped axial cross-section, including a body portion and a first inclined portion and a second inclined portion extending outward from the body portion towards both end faces, respectively. It has an outer first inclined surface, an outer second inclined surface, a first end face inclined surface, a first end face plane, a second end face inclined surface, a second end face plane, and an inner plane. The workpiece blank includes at least an outer side surface, a first end face, and a second end face. The tooling includes a base, a pressure plate, and a pressure ring. The base includes a base plate and a protrusion located at the center of the base plate. The protrusion is used to sleeve the workpiece blank on it. The pressure plate and the pressure ring are used to clamp and fix the workpiece blank with the base plate through bolts and nuts in different steps of the processing method.

[0017] In one embodiment, the tooling further includes a shim for clamping between the inner plane and the protrusion, the second end face abutting against the base plate, exposing the outer side, the inclined surface of the first end face, and the plane of the first end face, the edge of the pressure plate abutting against a portion of the plane of the first end face, and the workpiece blank is clamped and fixed between the pressure plate and the base plate by bolts and nuts.

[0018] In one embodiment, the tooling further includes a washer ring with an L-shaped axial cross-section, comprising a connected radial portion and an axial portion. The radial portion is used to clamp between the first end face plane and the base plate, and the axial portion is used to clamp between the inner side plane and the protrusion, exposing the outer first inclined surface, the outer second inclined surface, and the second end face. The edge of the pressure plate abuts against a portion of the second end face, and the workpiece blank is clamped and fixed between the pressure plate and the base plate by bolts and nuts.

[0019] In one embodiment, the pressure ring includes an annular portion and a barb extending inward from the annular portion. The free end of the barb has a receiving space between it and the annular portion for receiving the first inclined portion and the second inclined portion. The free end of the barb is used to abut against a portion of the second end face plane to expose the inner plane. The annular portion and the base plate are clamped and fixed together by bolts and nuts.

[0020] In one embodiment, the pressure ring includes a first part and a second part, both of which are regularly shaped. The first part is generally annular, and the second part is also generally annular, with a groove on one inner end face to form the barb portion and the receiving space. The other parts of the second part together with the first part form the annular portion.

[0021] In summary, the beneficial effects of this application are as follows: This application, through the processing method and tooling of the aforementioned irregularly shaped melt-filled ring, manufactures irregularly shaped melt-filled rings by machining, which can relatively easily produce such rings. Compared with traditional drawing forming technology, it also has advantages such as faster processing and manufacturing speed and higher finished product qualification rate. Simultaneously, the machining of Y-shaped rings achieves the domestic production of Y-shaped rings, filling a gap in related fields. Furthermore, this application can be extended to the processing of other irregularly shaped filled rings (such as L-shaped rings), realizing the processing of other irregularly shaped filled rings, and is not limited to the processing of Y-shaped rings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic flowchart illustrating a method for processing an irregularly shaped melt-filled ring according to the first embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the irregularly shaped melt-filled ring manufactured by the processing method of the irregularly shaped melt-filled ring provided in the first embodiment of this application, wherein part (b) is a cross-sectional view of part (a) at AA, and part (c) is a partial enlarged view of part (b) at F1;

[0025] Figure 3 This is a schematic diagram of the workpiece blank after step one is completed in a processing method for a non-shaped molten filling ring provided in the first embodiment of this application. Part (b) is a cross-sectional view of part (a) at BB, and part (c) is a partial enlarged view of part (b) at F2.

[0026] Figure 4 This is a schematic diagram of the assembly of a tooling and a workpiece blank provided in the second embodiment of the present application during step two of the processing method of a non-shaped melting and filling ring provided in the first embodiment of the present application. Part (b) is a cross-sectional view of part (a) at CC, and part (c) is a partial enlarged view of part (b) at F3.

[0027] Figure 5 This is a schematic diagram of the assembly of a tooling and a workpiece blank provided in the second embodiment of the present application during step four of the processing method of a non-shaped melting and filling ring provided in the first embodiment of the present application. Part (b) is a cross-sectional view of part (a) at DD, and part (c) is a partial enlarged view of part (b) at F4.

[0028] Figure 6 This is a schematic diagram of the assembly of a tooling and a workpiece blank provided in the second embodiment of the present application during step five of the processing method for a non-shaped molten filling ring provided in the first embodiment of the present application. Part (b) is a cross-sectional view of EE in part (a), and part (c) is a partial enlarged view of F5 in part (b). Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" can refer to the actual direction of the device in use or operation, the direction of the drawing in the accompanying drawings, or two opposite directions; while "inner" and "outer" refer to the outline of the device.

[0030] Please see Figure 1 As shown, the first embodiment of this application provides a method for processing an irregularly shaped melt-filled ring. Before describing the processing method of the irregularly shaped melt-filled ring in detail, please refer to [the relevant documentation / reference needed]. Figure 2 As shown, the axial cross-section of the irregularly shaped molten filler ring 1 is Y-shaped, including a body portion 10 and a first inclined portion 11 and a second inclined portion 12 extending outward from the body portion towards both end faces. It has an outer first inclined surface 13, an outer second inclined surface 14, a first end face inclined surface 15, a first end face plane 16, a second end face inclined surface 17, a second end face plane 18, and an inner plane 19. The inner plane 19 is only described as a straight line in the axial cross-sectional view and is therefore called a plane; in the actual complete product, it is annular. Other planes may also have a slight degree of inclination or curvature, but are referred to as planes here for ease of description. The irregularly shaped molten filler ring 1 serves as a filler material during welding and is essentially a type of solder. Currently, it is manufactured using drawing forming technology, which is extremely difficult. This application proposes an alternative technical direction: manufacturing using machining technology.

[0031] Please refer back to this. Figure 1 As shown, the processing method of the irregularly shaped melt-filled ring includes:

[0032] Step 1: Roughly machine the first end face of the workpiece blank using machining equipment to form the first end face inclined surface, the first end face plane and the inner side plane in a primary state. The workpiece blank includes at least the outer side surface, the first end face and the second end face.

[0033] Step 2: The workpiece blank is clamped and fixed using a tooling fixture, and the outer side is rough-machined to form the initial state of the first outer inclined surface and the second outer inclined surface. The tooling fixture includes a base and a pressure plate. The base includes a bottom plate and a protrusion located at the center of the bottom plate. The workpiece blank is fitted onto the protrusion, exposing the outer side, the first end inclined surface, and the first end plane. The second end face abuts against the bottom plate, the inner plane abuts against the protrusion, and the edge of the pressure plate abuts against a portion of the first end plane. The workpiece blank is clamped and fixed between the pressure plate and the bottom plate by bolts and nuts.

[0034] Step 3: Finish the first end face bevel and the first end face plane to form the final state of the first end face bevel and the first end face plane;

[0035] Step four: Change the tooling to clamp and fix the workpiece blank, and finish machine the second end face to form the final state of the second end face bevel and the second end face plane; the tooling also includes a washer ring, the axial section of the washer ring is L-shaped, including a connected radial part and an axial part, the radial part is clamped between the first end face plane and the base plate, the axial part is clamped between the inner side plane and the protrusion, exposing the outer first bevel, the outer second bevel and the second end face, the edge of the pressure plate abuts against part of the second end face, and the pressure plate and the base plate are clamped and fixed by bolts and nuts;

[0036] Step 5: Refine the outer first inclined surface and the outer second inclined surface to form the final state of the outer first inclined surface and the outer second inclined surface, and also form the first inclined portion and the second inclined portion;

[0037] Step Six: Change the tooling to clamp and fix the workpiece blank, and finish machine the inner plane to form the final state of the inner plane, which also forms the body part, thereby obtaining the irregular shaped melting and filling ring; the tooling also includes a pressure ring, which includes an annular part and a barb extending from the annular part inward. The free end of the barb has a receiving space between it and the annular part. The pressure ring replaces the pressure plate. The free end of the barb abuts against a portion of the second end face plane. The first inclined part and the second inclined part are received in the receiving space, exposing the inner plane. The annular part and the base plate are clamped and fixed by bolts and nuts.

[0038] In step one, no tooling is required; processing can be performed directly using machining equipment. This machining equipment can be a conventional CNC machine tool. The workpiece blank can be either a tube or a bar. If a tube is used, its outer diameter must be larger than the outer diameter of the finished shaped molten filling ring 1, and its inner diameter smaller than the inner diameter of the finished shaped molten filling ring 1. If a bar is used, only its outer diameter needs to be larger than the outer diameter of the finished shaped molten filling ring 1. Please refer to [link / reference]. Figure 3 As shown, the workpiece blank 2, whether made of tubing or bar, includes at least an outer surface 21, a first end face 22 (shown by dashed lines), and a second end face 23. In step one, the CNC machine tool can first clamp the outer surface 21 and perform rough machining on the first end face 22 to form the initial state of the first end face bevel 15, the first end face plane 16, and the inner surface plane 19. Furthermore, step one can also further include rough machining of the outer surface 21 to appropriately reduce the outer diameter of the workpiece blank 2, thereby reducing the time required for subsequent finishing and improving efficiency; of course, at this time, the CNC machine tool needs to hold and fix the inner surface plane 19. Moreover, before processing in step one, the workpiece blank 2 can be straightened to ensure manufacturing quality as much as possible. It should be noted in advance that, for the sake of simplicity, in the entire application, the outer surface 21, the first end face 22, and the second end face 23 all point to the workpiece blank 2; the outer first inclined surface 13, the outer second inclined surface 14, the first end face inclined surface 15, the first end face plane 16, the second end face inclined surface 17, the second end face plane 18, and the inner plane 19 all point to the irregular melting and filling ring 1.

[0039] Next, starting from step two, tooling is needed to fix the workpiece blank 2, and then a CNC machine tool is used for processing. Please refer to [link / reference]. Figure 4As shown, the tooling 3 includes a base 31 and a pressure plate 32. The base 31 includes a base plate 311 and a protrusion 312 located at the center of the base plate 311. The workpiece blank 2 is fitted onto the protrusion 312, exposing the outer side surface 21 (shown as a dashed line), the first end face inclined surface 15, and the first end face plane 16. The second end face 23 abuts against the base plate 311, and the inner side plane 19 abuts against the protrusion 312. The edge of the pressure plate 32 abuts against a portion of the first end face plane 16. The workpiece blank 2 is clamped and fixed between the pressure plate 32 and the base plate 311 by bolts and nuts. In this way, the outer side surface 21 can be rough-machined to form the initial state of the outer first inclined surface 13 and the outer second inclined surface 14. Furthermore, the tooling 3 may also include a shim 33. In step two, when the workpiece blank 2 is fitted onto the protrusion 312, the shim 33 can be clamped between the inner plane 19 and the protrusion 312. This can initially fix the workpiece blank 2, and then the pressure plate 32 can be pressed on to fix the workpiece blank 2, thereby facilitating the installation of the workpiece blank 2 and the tooling 3.

[0040] Then, still in this clamped and fixed state, step three can be continued: fine machining of the first end face bevel 15 and the first end face plane 16 to form the final state of the first end face bevel 15 and the first end face plane 16. It should be noted that the length of the first end face plane 16 is not yet final at this point. It needs to be further refined after finishing the inner plane 19 to form the final state of the inner plane 19, thus forming the final state of the length of the first end face plane 16, and thus forming the body part 10. At this point, the surfaces of the first end face bevel 15 and the first end face plane 16 no longer require processing and are considered to be in their final state.

[0041] Next, in step four, the second end face 23 needs to be machined. This requires flipping the workpiece blank 2, which necessitates disassembling the previous clamping and fixing state, and replacing it with other tooling components for proper engagement and fixation. Please refer to... Figure 5As shown, the tooling 3 also includes a washer 34, the axial section of which is L-shaped, including a connected radial portion 341 and an axial portion 342. The radial portion 341 is sandwiched between the first end face plane 16 and the base plate 311, and the axial portion 342 is sandwiched between the inner side plane 19 and the protruding portion 312, exposing the outer first inclined surface 13, the outer second inclined surface 14, and the second end face 23 (shown by dashed lines). The edge of the pressure plate 32 abuts against a portion of the second end face 23. The workpiece blank 2 is clamped and fixed between the pressure plate 32 and the base plate 311 by bolts and nuts. In this way, the second end face 23 can be directly precision machined to form the final state of the second end face inclined surface 17 and the second end face plane 18.

[0042] At this time, the outer first inclined surface 13 and the outer second inclined surface 14 are also exposed. Therefore, in this clamped and fixed state, step five can be directly continued to perform fine processing on the outer first inclined surface 13 and the outer second inclined surface 14 to form the final state of the outer first inclined surface 13 and the outer second inclined surface 14, and also form the first inclined part 11 and the second inclined part 12.

[0043] Finally, to machine the inner plane 19, a change of tooling is required. Please refer to [link / reference]. Figure 6 As shown, the tooling 3 also includes a pressure ring 35, which includes an annular portion 351 and a barb portion 352 extending inward from the annular portion 351. A receiving space 353 exists between the free end of the barb portion 352 and the annular portion 351. The pressure plate 32 is removed and replaced by the pressure ring 35. The free end of the barb portion 352 abuts against a portion of the second end face plane 18. The first inclined portion 11 and the second inclined portion 12 are received in the receiving space 353, exposing the inner plane 19. The annular portion 351 and the base plate 311 are clamped and fixed together by bolts and nuts. At this time, the first inclined portion 11 and the second inclined portion 12 are located within the receiving space 353 and are protected from being affected. Correspondingly, the outer first inclined surface 13, the outer second inclined surface 14, the first end face inclined surface 15, and the second end face inclined surface 17 are also protected from being affected. The parts of the first end face plane 16 and the second end face plane 18 that are abutted are also substantially protected from being affected. Therefore, at this time, only the inner side plane 19 is finely processed to form the final state of the inner side plane 19, which forms the body portion 10, thereby obtaining the final product of the irregular shaped melt filling ring 1.

[0044] Of course, after step six, this application may also include measuring the irregularly shaped molten filling ring 1 using a coordinate measuring machine to measure whether the parameters of the finished irregularly shaped molten filling ring 1 meet the product requirements. If the measurement results do not meet the product requirements, rework or the product will be deemed scrap, so as to improve the yield of the finished product.

[0045] The second embodiment of this application provides a tooling fixture applied to the machining method of the irregularly shaped melt-filled ring as described above, for clamping and fixing the workpiece blank. Please refer to... Figures 2 to 6 As shown, the axial cross-section of the irregularly shaped melting and filling ring 1 is Y-shaped, including a body portion 10 and a first inclined portion 11 and a second inclined portion 12 extending from the body portion 10 towards both end faces and outwards, respectively. It has an outer first inclined surface 13, an outer second inclined surface 14, a first end face inclined surface 15, a first end face plane 16, a second end face inclined surface 17, a second end face plane 18, and an inner plane 19. The workpiece blank 2 can be a tube or a bar. Whether it is a tube or a bar, it includes at least an outer surface 21, a first end face 22 (shown by dashed lines), and a second end face 23.

[0046] The tooling 3 includes a base 31, a pressure plate 32, and a pressure ring 35. The base 31 includes a base plate 311 and a protrusion 312 located at the center of the base plate 311. The protrusion 312 is used to fit the workpiece blank 2 onto it. The pressure plate 32 and the pressure ring 35 are used to clamp and fix the workpiece blank 2 with the base plate 311 through bolts and nuts in different steps of the processing method.

[0047] For example, when processing the outer surface 21 and the first end face 22, the pressure plate 32 and the base plate 311 together clamp and fix the workpiece blank 2. The first end face 22 can be pre-processed into the initial state of the first end face slope 15 and the first end face plane 16 using machining equipment without the need for tooling, and the initial state of the inner side plane 19 can also be processed simultaneously. Moreover, the tooling 3 can also include a shim 33, which is used to clamp between the inner side plane 19 and the protrusion 312. The second end face 23 abuts against the base plate 311, exposing the outer surface 21, the first end face slope 15, and the first end face plane 16. The edge of the pressure plate 32 abuts against a portion of the first end face plane 16. The pressure plate 32 and the base plate 311 are clamped and fixed together by bolts and nuts. In this way, the outer surface 21 can be rough-machined to form the initial state of the outer first inclined surface 13 and the outer second inclined surface 14, and the first end face inclined surface 15 and the first end face plane 16 can be fine-machined to form the final state of the first end face inclined surface 15 and the first end face plane 16.

[0048] Furthermore, the tooling 3 also includes a washer 34 for machining the second end face 23. The axial cross-section of the washer 34 is L-shaped, including a connected radial portion 341 and an axial portion 342. The radial portion 341 is used to clamp between the first end face plane 16 and the base plate 311 (the workpiece blank 2 has been flipped relative to the previous step). The axial portion 342 is used to clamp between the inner side plane 19 and the protruding portion 312, exposing the outer first inclined surface 13, the outer second inclined surface 14 and the second end face 23. The edge of the pressure plate 32 abuts against a portion of the second end face 23 (the pressure plate 32 is still used for fixing at this time). The workpiece blank 2 is clamped and fixed between the pressure plate 32 and the base plate 311 by bolts and nuts. In this way, the second end face 23 can be directly finished to form the final state of the second end face inclined surface 17 and the second end face plane 18, and the outer first inclined surface 13 and the outer second inclined surface 14 can be finished to form the final state of the outer first inclined surface 13 and the outer second inclined surface 14, thus forming the first inclined portion 11 and the second inclined portion 12.

[0049] The clamping ring 35 is used to clamp and fix the workpiece blank 2 in conjunction with the base plate 311 during the final machining of the inner surface 19. The clamping ring 35 includes an annular portion 351 and a barb portion 352 extending inward from the annular portion 351. The free end of the barb portion 352 has a receiving space 353 between it and the annular portion 351 for receiving the first inclined portion 11 and the second inclined portion 12. The free end of the barb portion 352 is used to abut against a portion of the second end face plane 18, exposing the inner surface 19. The annular portion 351 and the base plate 311 are clamped and fixed to the workpiece blank 2 by bolts and nuts. In this way, the inner surface 19 can be finely machined to form the final state of the inner surface 19, which forms the body portion 10, thereby obtaining the finished product of the irregular shaped melt-filled ring 1.

[0050] In the above-described solution, the overall shape of the pressure ring 35 is somewhat irregular, and the annular portion 351 is much larger than the barb portion 352, which is not conducive to the manufacturing of the pressure ring 35. In another embodiment, the pressure ring 35 includes a first portion 354 and a second portion 355, both of which are regularly shaped. The first portion 354 is generally annular, and the second portion 355 is also generally annular, with a groove 356 on one inner end face to form the barb portion 352 and the receiving space 353. The other parts of the second portion 355, together with the first portion 354, form the annular portion 351. Thus, the pressure ring 35 itself is easier to manufacture, thereby reducing the overall manufacturing difficulty of the tooling 3.

[0051] In addition, the base 31 and the pressure plate 32 are both roughly disc-shaped. Correspondingly, the base plate 311 is also disc-shaped, with two rings of screw holes around its outer perimeter. The diameter of the circle formed by the first ring of screw holes is smaller than the diameter of the circle formed by the second ring of screw holes. The pressure plate 32 also has a ring of pressure plate screw holes around its outer perimeter. The workpiece blank 2 is clamped and fixed to the base 31 by bolts and nuts engaging with the first ring of screw holes. The pressure ring 35 also has a ring of pressure ring screw holes around its outer perimeter. The workpiece blank 2 is clamped and fixed to the base 31 by bolts and nuts engaging with the second ring of screw holes.

[0052] In summary, this application, through its processing method and tooling for irregularly shaped melt-filled rings, manufactures these rings using machining. This method allows for the relatively easy production of irregularly shaped melt-filled rings and offers advantages over traditional drawing forming techniques, such as faster manufacturing speed and higher finished product yield. Furthermore, the machining of Y-shaped rings enables the domestic production of Y-shaped rings, filling a gap in the relevant field. Additionally, this application can be extended to the processing of other irregularly shaped filled rings (such as L-shaped rings), enabling the processing of other irregularly shaped filled rings, not just Y-shaped rings.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] The technical solutions provided by the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for processing an irregularly shaped molten filling ring, wherein the axial cross-section of the irregularly shaped molten filling ring is Y-shaped, including a body portion and a first inclined portion and a second inclined portion extending outward from the body portion towards both end faces, respectively, having an outer first inclined surface, an outer second inclined surface, a first end face inclined surface, a first end face plane, a second end face inclined surface, a second end face plane, and an inner plane, characterized in that, The processing method of the irregularly shaped melt-filled ring includes: Step 1: Roughly machine the first end face of the workpiece blank using machining equipment to form the first end face inclined surface, the first end face plane and the inner side plane in a primary state. The workpiece blank includes at least the outer side surface, the first end face and the second end face. Step 2: The workpiece blank is clamped and fixed using a tooling fixture, and the outer side is rough-machined to form the initial state of the first outer inclined surface and the second outer inclined surface. The tooling fixture includes a base and a pressure plate. The base includes a bottom plate and a protrusion located at the center of the bottom plate. The workpiece blank is fitted onto the protrusion, exposing the outer side, the first end inclined surface, and the first end plane. The second end face abuts against the bottom plate, the inner plane abuts against the protrusion, and the edge of the pressure plate abuts against a portion of the first end plane. The workpiece blank is clamped and fixed between the pressure plate and the bottom plate by bolts and nuts. Step 3: Finish the first end face bevel and the first end face plane to form the final state of the first end face bevel and the first end face plane; Step four: Change the tooling to clamp and fix the workpiece blank, and finish machine the second end face to form the final state of the second end face bevel and the second end face plane; the tooling also includes a washer ring, the axial section of the washer ring is L-shaped, including a connected radial part and an axial part, the radial part is clamped between the first end face plane and the base plate, the axial part is clamped between the inner side plane and the protrusion, exposing the outer first bevel, the outer second bevel and the second end face, the edge of the pressure plate abuts against part of the second end face, and the pressure plate and the base plate are clamped and fixed by bolts and nuts; Step 5: Refine the outer first inclined surface and the outer second inclined surface to form the final state of the outer first inclined surface and the outer second inclined surface, and also form the first inclined portion and the second inclined portion; Step Six: Change the tooling to clamp and fix the workpiece blank, and finish machine the inner plane to form the final state of the inner plane, which also forms the body part, thereby obtaining the irregular shaped melting and filling ring; the tooling also includes a pressure ring, which includes an annular part and a barb extending from the annular part inward. The free end of the barb has a receiving space between it and the annular part. The pressure ring replaces the pressure plate. The free end of the barb abuts against a portion of the second end face plane. The first inclined part and the second inclined part are received in the receiving space, exposing the inner plane. The annular part and the base plate are clamped and fixed by bolts and nuts.

2. The processing method for the irregularly shaped melt-filled ring as described in claim 1, characterized in that, The tooling also includes a gasket, which is clamped between the inner plane and the protrusion in step two.

3. The processing method for the irregularly shaped melt-filled ring as described in claim 1, characterized in that, The workpiece blank is a tube or bar, and the irregularly shaped molten filling ring is a solder.

4. The processing method for the irregularly shaped melt-filled ring as described in claim 1, characterized in that, Before step one, the workpiece blank is straightened; step one also includes rough machining of the outer surface.

5. The processing method for the irregularly shaped melt-filled ring as described in claim 1, characterized in that, After step six, the irregularly shaped molten filling ring is measured using a coordinate measuring machine. If the measurement result does not meet the product requirements, it is reworked or judged as scrap.

6. A tooling, characterized in that, The tooling is applied to the processing method of the irregular molten filling ring according to any one of claims 1-5, and clamps and fixes the workpiece blank. The axial cross section of the irregular molten filling ring is Y-shaped, including a body part and a first inclined part and a second inclined part extending from the body part to both end faces and outwards, respectively. It has an outer first inclined surface, an outer second inclined surface, a first end face inclined surface, a first end face plane, a second end face inclined surface, a second end face plane, and an inner plane. The workpiece blank includes at least an outer side surface, a first end face, and a second end face. The tooling includes a base, a pressure plate, and a pressure ring. The base includes a base plate and a protrusion located at the center of the base plate. The protrusion is used to sleeve the workpiece blank on it. The pressure plate and the pressure ring are used to clamp and fix the workpiece blank with the base plate through bolts and nuts in different steps of the processing method.

7. The tooling as described in claim 6, characterized in that, The tooling also includes a shim, which is used to clamp between the inner side plane and the protrusion. The second end face abuts against the base plate, exposing the outer side, the inclined surface of the first end face, and the plane of the first end face. The edge of the pressure plate abuts against a portion of the plane of the first end face. The workpiece blank is clamped and fixed between the pressure plate and the base plate by bolts and nuts.

8. The tooling as described in claim 6, characterized in that, The tooling also includes a washer ring, the axial section of which is L-shaped and includes a connected radial portion and an axial portion. The radial portion is used to clamp between the first end face plane and the base plate, and the axial portion is used to clamp between the inner side plane and the protrusion, exposing the outer first inclined surface, the outer second inclined surface and the second end face. The edge of the pressure plate abuts against a portion of the second end face, and the workpiece blank is clamped and fixed between the pressure plate and the base plate by bolts and nuts.

9. The tooling as described in claim 6, characterized in that, The pressure ring includes an annular portion and a barb extending inward from the annular portion. The free end of the barb has a receiving space between it and the annular portion for receiving the first inclined portion and the second inclined portion. The free end of the barb is used to abut against a portion of the second end face plane to expose the inner plane. The annular portion and the base plate are clamped and fixed together by bolts and nuts.

10. The tooling as described in claim 9, characterized in that, The pressure ring includes a first part and a second part, both of which are regularly shaped. The first part is generally circular, and the second part is also generally circular, with a groove on one end face of its inner side to form the barb portion and the receiving space. The other parts of the second part together with the first part form the annular portion.

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