Welding tool

Abstract

The utility model discloses a welding tool, which is used for fixing relative positions of a base body and a plurality of ceramic material pieces, and comprises a base, a plurality of ceramic material pieces, a plurality of ceramic material pieces, a plurality of ceramic material pieces and a plurality of ceramic material pieces, at least one positioning assembly is detachably connected with the base, the multiple positioning assemblies are detachably connected to define a limiting frame corresponding to the bearing positions, and the ceramic material part is located on the base body and arranged in the limiting frame; and the multiple partition blocks are movably arranged in the limiting frame so as to separate every two adjacent ceramic material pieces. According to the welding tool provided by the embodiment of the utility model, the ceramic material piece is dynamically limited through the detachable positioning assembly and the movable spacer block, so that the welding tool can adapt to the movement of the ceramic material piece and the change of stress in the welding process, the overlarge local stress caused by welding and cooling is avoided, and the yield of the welding piece is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of microwave suppressor processing and manufacturing equipment, and particularly relates to a welding tooling. Background Art

[0002] The microwave suppressor is a very important component in the vacuum system. For example, particle accelerators, nuclear fusion devices, microwave communication systems, and radar systems all use microwave suppressors to absorb or eliminate unwanted electromagnetic waves, thereby improving the performance and reliability of the system.

[0003] Ceramic material parts are widely used in the production and manufacturing of microwave suppressors due to their good electromagnetic properties. However, due to their poor mechanical properties, especially small fracture strength, the welding qualification rate is low, which affects the yield of microwave suppressors. The ceramic material parts need to be fixed on the substrate through the brazing process. In the prior art, the limiting frame of the brazing tooling is an integral body, and the welded parts are directly taken out after brazing. Since the ceramic material parts may undergo horizontal displacement after the solder melts, and the driving forces include gravity, surface tension, etc., during the brazing process, the welding assembly and the tooling go through a series of thermal expansion processes, which may cause excessive stress between the ceramic material parts and the welding tooling after cooling. The way of directly taking out the limiting frame easily causes local fracture of the ceramic material parts. An inappropriate welding tooling will lead to the problem of low yield. Summary of the Invention

[0004] The purpose of the embodiment of the utility model is to provide a welding tooling to solve the problem that the welding tooling of the microwave suppressor in the prior art cannot be dynamically adjusted, is difficult to adapt to the displacement and stress change of the welded parts, and has a low yield of the welded parts.

[0005] The embodiment of the utility model provides a welding tooling.

[0006] The welding tooling according to the embodiment of the utility model is used to fix the relative positions of the substrate and multiple ceramic material parts for the welding of the substrate and the ceramic material parts. The welding tooling includes:

[0007] A base defining a bearing position for bearing the substrate, the bearing position being formed as a groove, and the top and one side of the bearing position being open;

[0008] Multiple positioning components, at least one of the positioning components being detachably connected to the base, and the multiple positioning components being detachably connected to define a limiting frame corresponding to the bearing position, and the ceramic material parts being located on the substrate and arranged within the limiting frame;

[0009] Multiple spacer blocks, respectively movably arranged within the limiting frame to space apart two adjacent ceramic material parts.

[0010] Further, the spacer block includes:

[0011] a spacing portion for clamping between adjacent ceramic material pieces so that the adjacent ceramic material pieces define a gap;

[0012] a lapping portion connected to one end of the spacing portion, and both ends of the lapping portion are respectively lapped above two adjacent ceramic material pieces.

[0013] Further, the positioning assembly includes: a first positioning member and a second positioning member, the first positioning member and / or the second positioning member is detachably connected to the base, and the second positioning member is detachably connected to the first positioning member to define the limiting frame.

[0014] Further, the limiting frame is formed as a rectangular frame.

[0015] Further, the first positioning member is formed as a "C"-shaped with one side open, and the second positioning member is formed as a long strip matching the first positioning member.

[0016] Further, both ends of the first positioning member are respectively connected to the corresponding two ends of the base by bolts.

[0017] Further, both ends of the second positioning member are respectively connected to the corresponding two ends of the first positioning member by bolts.

[0018] According to the welding tooling of the embodiment of the present invention, through the detachable positioning assembly and the movable spacer block, the ceramic material pieces are dynamically limited, which can adapt to the movement and stress change of the ceramic material pieces during the welding process, avoid excessive local stress caused by welding and cooling, and improve the yield rate of the welded parts. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a welding tooling in the prior art;

[0020] Figure 2 is Figure 1 a partial structural diagram of

[0021] Figure 3 is a schematic structural diagram of the welding tooling according to the embodiment of the present invention;

[0022] Figure 4 is Figure 3 a partial structural diagram of

[0023] Figure 5 is a top view of the positioning assembly of the welding tooling according to an embodiment of the present invention;

[0024] Figure 6 It is a top view of the positioning component of the welding tooling according to another embodiment of the present utility model;

[0025] Figure 7 It is a top view of the positioning component of the welding tooling according to yet another embodiment of the present utility model;

[0026] Figure 8 It is a top view of the positioning component of the welding tooling according to another embodiment of the present utility model.

[0027] Attached drawing

[0028] Welding tooling 100; Substrate 200; Ceramic material part 300;

[0029] Base 10; Loading position 11;

[0030] First positioning member 21; Second positioning member 22; Limit frame 23;

[0031] Spacer block 30; Spacing part 31; Lapping part 32;

[0032] Bolt 40. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0034] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model can be implemented in an order other than those illustrated or described herein. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0035] In the prior art, such as Figure 1 and Figure 2As shown in the figure, the welding fixture consists of a base plate 1, a pressing frame 2 and a cross beam. Among them, the base of the microwave suppressor is arranged on the base plate 1, and the ceramic material parts are placed in the pressing frame 2. The pressing frame 2 is an integral structure. After the ceramic material parts and the base are welded, it is necessary to pull out the pressing frame 2 upward and then take out the welded parts. Due to the action of welding stress, it may be difficult to take out the welded parts, or even cause the welded parts to tear. In addition, the welding fixture mainly limits the ceramic material parts through the small cross beam 4 on the pressing frame 2 and the large cross beam 3 (fixed by bolts), and the adjustability is poor. As Figure 1 shown, the small cross beam 4 on the pressing frame 2 cannot move, and the middle large cross beam 3 cannot move after being fixed by bolts. During the process of welding the ceramic material parts and the base, due to the action of gravity and surface tension, the ceramic material parts may displace, and a series of thermal expansions will also occur during the welding of the welded parts, resulting in mutual extrusion between the ceramic material parts and the welding fixture. If the existing welding fixture is used, the stress after welding is relatively large, and the ceramic material parts are prone to fracture.

[0036] The following combines Figures 3 to 8 to illustrate the welding fixture 100 provided by the embodiments of the present invention in detail through specific embodiments and their application scenarios.

[0037] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0038] The welding fixture 100 according to the embodiment of the present invention is used to fix the relative positions of the base and multiple ceramic material parts for the welding of the base and the ceramic material parts. The welding fixture 100 includes a base 10, a positioning assembly and multiple spacer blocks 30.

[0039] Specifically, as Figure 3 and Figure 4 shown, the base 10 defines a bearing position 11 for bearing the base. The bearing position 11 is formed as a groove, and the top and one side of the bearing position 11 are both open; at least one positioning assembly (in Figure 3 the structures indicated by reference numerals 21 and 22 represent the positioning assembly) is detachably connected to the base 10, and multiple positioning assemblies are detachably connected to define a limiting frame 23 corresponding to the bearing position 11. The ceramic material parts 300 are located on the base 200 and arranged in the limiting frame 23; multiple spacer blocks 30 are respectively movably arranged in the limiting frame 23 to space adjacent two ceramic material parts 300 apart.

[0040] For the welding fixture 100 according to the embodiment of the present invention, the positioning assembly can be two or multiple. In Figure 3 , Figure 4 , Figure 6 and Figure 7In it, a limiting frame 23 is respectively defined by two positioning components. In Figure 5 and Figure 8 a limiting frame 23 is respectively defined by four positioning members (the reference numerals 20a, 20b, 20c, 20d, and 20e in the figure respectively represent positioning components of different structures). It is convenient to sequentially disassemble the positioning components after welding is completed and then remove the welded part, instead of removing the positioning components as a whole at the same time, avoiding damage to the tooling and the welded part during the removal process. At the same time, according to the welding tooling 100 of the embodiment of the present invention, the fixed crossbeam structure is cancelled, and the spacer block 30 is used to replace the positioning function of the original crossbeam. The spacer block 30 with an appropriate size and movable is placed between adjacent ceramic material parts 300 and on the base body 200 to ensure the spacing between the ceramic material parts 300 and achieve the positioning purpose. The size of the spacer block 30 should have a certain margin under the condition of meeting the design size to ensure that the ceramic material part 300 and the spacer block 30 are free and have a certain movable space, capable of meeting the changes in the position and volume of the welded part caused by welding.

[0041] Thus, according to the welding tooling 100 of the embodiment of the present invention, through the detachable positioning components and the movable spacer block 30, the ceramic material part 300 is dynamically limited, capable of adapting to the movement and stress change of the ceramic material part 300 during the welding process, avoiding excessive local stress caused by welding and cooling, and improving the yield rate of the welded part.

[0042] According to an embodiment of the present invention, the spacer block 30 includes a spacing portion 31 and a lapping portion 32.

[0043] Specifically, the spacing portion 31 is used to clamp between adjacent ceramic material parts 300 to define a gap between adjacent ceramic material parts 300 and ensure that the ceramic material parts 300 can move. The lower part of the lapping portion 32 is connected to the spacing portion 31, and both ends of the lapping portion 32 are respectively lapped on the upper parts of the corresponding adjacent two ceramic material parts 300.

[0044] That is to say, as Figure 4 shown, the cross-section of the spacer block 30 is similar to a "T" - shaped structure, which is convenient to lap on adjacent ceramic material parts 300. The spacer block 30 is not directly fixedly connected to other structures. During the welding process, if the ceramic material part 300 moves or expands, it will push the spacer block 30 to move, thereby automatically adjusting the gap between adjacent ceramic material parts 300.

[0045] In an embodiment of the present invention, the positioning component includes a first positioning member 21 and a second positioning member 22. The first positioning member 21 and / or the second positioning member 22 is detachably connected to the base 10, and the second positioning member 2 is detachably connected to the first positioning member 22 to define a limiting frame.

[0046] That is to say, the positioning component is not an integral whole, but is composed of two parts, namely, a first positioning member 21 and a second positioning member 22 that can be disassembled. Among them, the first positioning member 21 can be selected to be connected to the base 10, or the second positioning member 22 can be selected to be connected to the base 10, or the first positioning member 21 and the second positioning member 22 are respectively connected to the base 10. After welding is completed, the welding tooling 100 is disassembled in sequence, and the welded part is taken out, and the ceramic material part 300 is not likely to crack.

[0047] Furthermore, the limiting frame 23 is formed as a rectangular frame, and the shape of the limiting frame 23 matches the shape of the ceramic material part 300, which can play a good limiting role.

[0048] Preferably, the first positioning member 21 is formed as a "C"-shaped with one side open, and the second positioning member 22 is formed as a long strip matching the first positioning member 21. As Figure 3 shown, the second positioning member 22 can be connected to one side of the first positioning member 21 to form the limiting frame 23, and can also be removed from one side of the first positioning member 21. After welding is completed, the first positioning member 21 is first removed from one side, then the second positioning member 22 is removed from the other side, and then the welded part is removed. In this way, even if there is a certain amount of stress after brazing, it can be easily taken out without cracking the ceramic material part.

[0049] Preferably, the two ends of the first positioning member 21 are respectively connected to the corresponding two ends of the base 10 by bolts, and some positioning pins can also be used to assist in positioning the first positioning member 21 and the base 10. Optionally, the two ends of the second positioning member 22 are respectively connected to the corresponding two ends of the first positioning member 21 by bolts. The bolt connection has a simple structure and is convenient for disassembly.

[0050] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims, and all of them belong to the protection scope of the present invention.

Claims

1. A welding tooling for fixing the relative positions of a substrate and a plurality of ceramic material parts to facilitate the welding of the substrate and the ceramic material parts, characterized in that The welding tooling includes: A base that defines a bearing position for bearing the base body. The bearing position is formed as a groove, and the top end and one side of the bearing position are both open; A plurality of positioning components, at least one of the positioning components is detachably connected to the base, and the plurality of positioning components are detachably connected to define a limiting frame corresponding to the bearing position. The ceramic material part is located on the base body and is arranged within the limiting frame; A plurality of spacers, which are respectively movably arranged within the limiting frame to space apart two adjacent ceramic material parts.

2. The welding tooling according to claim 1, characterized in that, The spacer includes: A spacing part for clamping between adjacent ceramic material parts so that the adjacent ceramic material parts define a gap; A lapping part connected to one end of the spacing part, and both ends of the lapping part are respectively lapped above two adjacent ceramic material parts.

3. The welding tooling according to claim 1, wherein, The positioning component includes: a first positioning piece and a second positioning piece. The first positioning piece and / or the second positioning piece is detachably connected to the base, and the second positioning piece is detachably connected to the first positioning piece to define the limiting frame.

4. The welding tooling according to claim 3, wherein, The limiting frame is formed as a rectangular frame.

5. The welding tooling according to claim 3, characterized in that, The first positioning piece is formed as a "C"-shaped with one side open, and the second positioning piece is formed as a long strip matching the first positioning piece.

6. The welding tooling according to claim 3, characterized in that, Both ends of the first positioning piece are respectively connected to the corresponding two ends of the base through bolts.

7. The welding tooling according to claim 3, wherein Both ends of the second positioning piece are respectively connected to the corresponding two ends of the first positioning piece through bolts.

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