CN219093924U

CN219093924U - Magnetron exhaust pipe assembly brazing upper fixture

Info

Publication number: CN219093924U
Application number: CN202320055032.6U
Authority: CN
Inventors: 卢锦平; 张海波; 邹能基
Original assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Oven and Electrical Appliance Manufacturing Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Oven and Electrical Appliance Manufacturing Co Ltd
Priority date: 2022-01-10
Filing date: 2023-01-09
Publication date: 2023-05-30
Anticipated expiration: 2033-01-09
Also published as: CN218926874U; CN219094097U; CN219094153U; CN219258954U; CN219258818U; CN219098184U; CN115922330A; CN219429033U; CN219098185U; CN219426037U

Abstract

The utility model provides a brazing upper clamp of a magnetron exhaust pipe assembly, which is provided with a main cavity, wherein the exhaust pipe assembly is arranged in the main cavity, the main cavity and the exhaust pipe assembly are concentrically arranged, the side wall of the upper clamp is provided with a through hole, and the through hole penetrates through the side wall of the upper clamp and is communicated with the main cavity; according to the brazing upper clamp for the magnetron exhaust pipe assembly, on one hand, the firmness of the upper clamp in the grabbing and moving processes can be effectively improved, the upper clamp is prevented from falling in the grabbing and moving processes, on the other hand, the heating uniformity of each part of the exhaust pipe assembly in the welding process can be improved, and the welding effect can be effectively improved; meanwhile, the heat transfer rate can be effectively improved, the welding speed is improved, and the welding efficiency and the production efficiency of the exhaust pipe assembly are improved.

Description

Magnetron exhaust pipe assembly brazing upper fixture

Technical Field

The utility model relates to a brazing upper clamp for a magnetron exhaust pipe assembly.

Background

A magnetron is an electric vacuum device for generating microwave energy; in the production of a magnetron, an exhaust pipe assembly of the magnetron comprises an insulating structure made of ceramic materials and a component structure made of metal materials; therefore, the ceramic insulation structure and the metal component structure need to be assembled and limited in the processing process of the exhaust pipe assembly, then welding is carried out, the exhaust pipe assembly with an integrated structure is finally processed, and the air leakage phenomenon cannot occur after welding and forming.

Because the parts are more in the exhaust pipe assembly, a brazing clamp is often required to fix and limit each part in the exhaust pipe assembly in the welding process, and air leakage caused by displacement during welding is avoided. The applicant has carried out structural development on a brazing upper clamp of a magnetron exhaust pipe assembly in early stage, and filed a patent application with the application number of 2020227218881, and discloses an inner cavity structure of the upper clamp and an assembly condition between the upper clamp and the exhaust pipe assembly.

However, as the applicant continuously uses the early upper clamp in the actual production and application process, it is found that in the actual welding process of the exhaust pipe assembly, the upper clamp needs to be assembled from the top of the exhaust pipe assembly, or taken out from the top of the exhaust pipe assembly, and in the disassembly and assembly process, the early upper clamp cannot be reliably grasped and moved, and a certain falling condition exists, so that the continuous and automatic production process of the exhaust pipe assembly is affected. Therefore, in the use process of the upper clamp, the firmness in the grabbing and moving processes of the upper clamp also needs to be considered.

Disclosure of Invention

In view of the above, the utility model aims to provide a brazing upper clamp for a magnetron exhaust pipe assembly, which solves the problem of poor firmness in the grabbing and moving processes of the upper clamp caused by unreasonable structural design of the upper clamp in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the upper fixture is provided with a main cavity, the exhaust pipe assembly is arranged in the main cavity, the main cavity and the exhaust pipe assembly are concentrically arranged, a through hole is formed in the side wall of the upper fixture, and the through hole penetrates through the side wall of the upper fixture and is communicated with the main cavity. Therefore, on one hand, the through holes on the side wall of the upper clamp can be clamped by hands or the mechanical arm in the clamping and moving process of the upper clamp, and a clamping relation in space is formed, so that the firmness of the upper clamp in the clamping and moving process can be effectively improved, the upper clamp is prevented from falling in the clamping and moving process, and on the other hand, the through holes are communicated with the main cavity, so that the exhaust pipe assembly positioned in the main cavity can be directly contacted with an external high-temperature environment when the exhaust pipe assembly is welded, the heating uniformity of each part of the exhaust pipe assembly in the welding process can be improved, and the welding effect can be effectively improved; meanwhile, the heat transfer rate can be effectively improved, the welding speed is improved, and the welding efficiency and the production efficiency of the exhaust pipe assembly are improved.

Preferably, the side wall of the upper clamp is provided with at least two through holes in a circumferential array mode, so that the exhaust pipe assembly can be more uniformly contacted with an external high-temperature welding environment in the circumferential direction of the exhaust pipe assembly in the welding process, and the heating uniformity among the components is further improved.

Further, the exhaust pipe assembly comprises an exhaust pipe, a first solder piece, an insulating ring, a second solder piece, an A-side pipe and a small choke sleeve which are sequentially connected from top to bottom; the main cavity body is at least concentric with the exhaust pipe, the insulating ring and the side A pipe, and the exhaust pipe assembly is attached to the main cavity body. Therefore, the exhaust pipe, the insulating ring and the side A pipe of the exhaust pipe assembly are accommodated, clamped and concentrically limited through the upper clamp, and the accuracy degree of the brazing clamp on the concentricity limitation of the exhaust pipe assembly is ensured.

Further, the main cavity penetrates through the upper clamp in the vertical direction; the main cavity comprises a first cavity, a third cavity, a fourth cavity and a sixth cavity from top to bottom, and the first cavity, the third cavity, the fourth cavity and the sixth cavity are all concentrically arranged. Therefore, the plurality of cavity structures which are concentrically arranged are arranged in the upper clamp, the relevant assembly structure of the exhaust pipe assembly is bonded and limited, and the relevant assembly structure of the exhaust pipe assembly and the corresponding cavity structure are concentrically assembled, so that the upper clamp is ensured to have good concentricity limitation on the relevant assembly structure of the exhaust pipe assembly, the dislocation of each part is avoided to a certain extent, and the yield of welded finished products is improved.

Further, the inner wall of the fourth chamber is partially attached to the outer wall of the insulating ring, and the fourth chamber and the insulating ring are concentrically arranged. Therefore, the upper clamp can limit the concentric positions of the insulating rings in the exhaust pipe assembly.

Further, the through hole is communicated with the fourth cavity, so that in the welding process, the high-temperature environment outside the upper clamp can be directly communicated with the fourth cavity through the through hole, the upper end and the lower end of the insulating ring in the fourth cavity can be directly and uniformly heated, on one hand, the welding uniformity is improved, the welding effect is improved, on the other hand, the welding speed is improved, and the welding efficiency and the production efficiency of the exhaust pipe assembly are improved.

Further, the inner wall of the third chamber is attached to the part of the second pipe section of the exhaust pipe, a second chamber is arranged between the first chamber and the third chamber, the second chamber is a chamber which is gradually enlarged along an opening from top to bottom, and the first chamber, the second chamber, the third chamber and the exhaust pipe are all concentrically arranged, so that the restriction of the upper clamp on the concentric position of the exhaust pipe is realized.

Further, a fifth chamber is arranged between the fourth chamber and the sixth chamber, the sixth chamber is attached to the part of the A-side pipe, and the fifth chamber and the sixth chamber are both arranged concentrically with the A-side pipe, so that the limitation of the upper clamp on the concentric position of the A-side pipe in the exhaust pipe assembly is realized.

Further, a second chamfer is arranged at the top end of the first chamber, so that the exhaust pipe and the main cavity are convenient to assemble or disassemble; the bottom of sixth cavity sets up first chamfer, is convenient for assemble or dismantle A side pipe and main cavity body.

Further, the bottom outer fringe of going up the anchor clamps sets up the third chamfer, and the operating personnel of being convenient for picks up the anchor clamps on the one hand, and on the other hand has saved the partial structure of going up the anchor clamps, reduces the material consumption, practices thrift the cost.

Compared with the prior art, the brazing upper clamp for the magnetron exhaust pipe assembly has the following advantages:

according to the brazing upper clamp for the magnetron exhaust pipe assembly, through the arrangement of the through holes, on one hand, the through holes on the side wall of the upper clamp can be clamped by a human hand or a mechanical arm in the clamping and moving process of the upper clamp, and a space clamping relation is formed, so that the firmness of the upper clamp in the clamping and moving process can be effectively improved, the upper clamp is prevented from falling in the clamping and moving process, and on the other hand, the through holes are communicated with the main cavity, so that the exhaust pipe assembly in the main cavity can be directly contacted with an external high-temperature environment when the exhaust pipe assembly is welded, the heating uniformity of each part of the exhaust pipe assembly in the welding process can be improved, and the welding effect can be effectively improved; meanwhile, the heat transfer rate can be effectively improved, the welding speed is improved, and the welding efficiency and the production efficiency of the exhaust pipe assembly are improved. In addition, the through hole can save the material of going up the anchor clamps, reduces the weight of going up the anchor clamps.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is an exploded view of a magnetron exhaust assembly of an embodiment of the utility model prior to welding;

FIG. 2 is an isometric view of a magnetron exhaust assembly according to an embodiment of the utility model after welding;

FIG. 3 is a schematic view of a small choke sleeve in a magnetron exhaust pipe assembly according to an embodiment of the utility model;

FIG. 4 is an isometric view of a magnetron exhaust pipe assembly braze-on clamp according to an embodiment of the utility model;

fig. 5 is a cross-sectional view of a magnetron exhaust pipe assembly brazing jig according to an embodiment of the utility model.

Reference numerals illustrate:

1. a clamp is arranged; 10. a main cavity; 11. a first chamber; 12. a second chamber; 13. a third chamber; 14. a fourth chamber; 15. a fifth chamber; 16. a sixth chamber; 17. a first chamfer; 18. a second chamfer; 19. a third chamfer; 2. a through hole; 3. an exhaust pipe; 31. a first pipe section; 32. a first end face; 33. a second pipe section; 4. a first solder sheet; 5. an insulating ring; 51. an upper end surface; 6. a second solder sheet; 7. a side pipe A; 71. a skirt tube; 72. a bottom end surface; 73. a first tube body; 74. a first shrink tube; 75. a second tube body; 76. a second shrink tube; 77. a third tube body; 8. a small choke sleeve; 81. a choke section; 82. and (5) flanging.

Detailed Description

The inventive concepts of the present disclosure will be described below using terms commonly used by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

In order to solve the problem that the structural design of an upper clamp is unreasonable and the firmness of the upper clamp is poor in the grabbing and moving processes of the upper clamp in the prior art, the embodiment provides an upper clamp for brazing a magnetron exhaust pipe assembly, as shown in figures 1-5, the upper clamp 1 is provided with a main cavity 10, the exhaust pipe assembly is arranged in the main cavity 10, the main cavity 10 and the exhaust pipe assembly are concentrically arranged, a through hole 2 is formed in the side wall of the upper clamp 1, and the through hole 2 penetrates through the side wall of the upper clamp 1 and is communicated with the main cavity 10.

Before welding, after the exhaust pipe assembly and corresponding welding flux are assembled, the upper clamp 1 is clamped by a human hand or a mechanical arm, so that the upper clamp 1 is sleeved outside the exhaust pipe assembly, and the assembled exhaust pipe assembly is limited. In the process of clamping and moving the upper clamp 1 proposed earlier by the applicant, only the friction force between a human hand or a mechanical arm and the outer side wall of the upper clamp 1 is utilized, so that the conditions of unstable clamping, falling and the like exist in the actual production process to a certain extent. Meanwhile, in the welding process, the early upper clamp 1 can obstruct the high-temperature environment outside the exhaust pipe assembly and the upper clamp 1 to a certain extent, so that the situation that the parts of the exhaust pipe assembly are heated unevenly is caused, and the welding effect is affected.

Therefore, the applicant further develops and improves the upper clamp 1, through the arrangement of the through holes 2, on one hand, the through holes 2 on the side wall of the upper clamp 1 can be clamped by a human hand or a mechanical arm in the clamping and moving process of the upper clamp 1, and a space clamping relationship is formed, so that the firmness of the upper clamp 1 in the grabbing and moving process can be effectively improved, the upper clamp 1 is prevented from falling in the grabbing and moving process, and on the other hand, the through holes 2 are communicated with the main cavity 10, so that when an exhaust pipe assembly is welded, the exhaust pipe assembly positioned in the main cavity 10 can be directly contacted with an external high-temperature environment, the heating uniformity of each part of the exhaust pipe assembly in the welding process can be improved, and the welding effect can be effectively improved; meanwhile, the heat transfer rate can be effectively improved, the welding speed is improved, and the welding efficiency and the production efficiency of the exhaust pipe assembly are improved. In addition, the arrangement of the through holes 2 can save the material of the upper clamp 1 and reduce the weight of the upper clamp 1. Preferably, the vent tube assembly conforms to a portion of the main cavity 10.

The side wall of the upper clamp 1 is provided with at least two through holes 2 in a circumferential array mode, so that the exhaust pipe assembly can be more uniformly contacted with an external high-temperature welding environment in the circumferential direction of the exhaust pipe assembly, and the heating uniformity among components is further improved. Meanwhile, the upper clamp 1 is convenient to clamp more firmly by hands or mechanical arms. Preferably, the number of the through holes 2 is even, so that when the upper clamp 1 is clamped by a hand or a mechanical arm, two clamping force points with opposite positions often exist, and the through holes 2 with even numbers of circumferential arrays are arranged, so that the two clamping force points can be clamped in space through the through holes 2, and the clamping connection of the upper clamp 1 in the process of grabbing and moving is further improved.

Before describing the concentricity defined by the clamp, a specific structure of the exhaust pipe assembly is described for convenience in describing the assembly relation; before welding, the components of the exhaust pipe assembly, specifically, the exhaust pipe assembly includes an exhaust pipe 3, a first solder sheet 4, an insulating ring 5, a second solder sheet 6, an a-side pipe 7, and a small choke sleeve 8, which are sequentially connected from top to bottom, are required to be assembled in a certain order.

In the magnetron structure, the insulating ring 5 is usually made of nonmetal materials for insulating, and the exhaust pipe 3 and the side pipe 7 are made of metal materials; therefore, in order to join the members of different materials together, it is necessary to provide solder pieces on the upper end face 51 and the lower end face of the insulating ring 5, respectively.

The exhaust pipe 3 includes a first pipe section 31 and a second pipe section 33 sequentially connected from top to bottom, the first pipe section 31 and the second pipe section 33 are preferably concentrically arranged, the inner diameter of the second pipe section 33 is larger than that of the first pipe section 31, and an end surface of the second pipe section 33, which is close to the first pipe section 31, is denoted as a first end surface 32; the second pipe section 33 has an expanded end structure on the whole exhaust pipe 3, the second pipe section 33 is used as a transitional connecting section, the exhaust pipe 3 is matched with the upper end face 51 of the insulating ring 5, and the first solder sheet 4 is arranged between the second pipe section 33 and the upper end face 51 of the insulating ring 5; whereby the first end face 32 of the second tube section 33 is connected to the first tube section 31 after the welding is completed; the other end of the second tube section 33 is connected to the upper end face 51 of the insulating ring 5 by the first solder sheet 4 in a direction away from the first tube section 31. Furthermore, the end of the first tube section 31 acts as a microwave emitting end in a direction away from the second tube section 33.

The second solder sheet 6 is arranged between the lower end surface of the insulating ring 5 and the A-side pipe 7 and is used for welding the insulating ring 5 and the A-side pipe 7 which are made of different materials together; as shown in fig. 2, the a-side tube 7 comprises a skirt tube 71, a bottom end surface 72, a first tube 73, a first shrinkage tube 74, a second tube 75, a second shrinkage tube 76 and a third tube 77 which are sequentially connected from bottom to top; because the first shrinkage tube 74 and the second shrinkage tube 76 are reducer tubes, and the tube diameters are gradually reduced from bottom to top, the inner diameter of the first tube body 73 is larger than the inner diameter of the second tube body 75, and the inner diameter of the second tube body 75 is larger than the inner diameter of the third tube body 77; the top end of the third tube 77 is welded to the lower end surface of the insulating ring 5 by the second solder sheet 6. Accordingly, the individual sections of the a-side tube 7 are also preferably arranged concentrically.

Of course, in a specific case where there is a limitation on the height of the a-side tube 7, the a-side tube 7 may not adopt the structure shown in fig. 2, specifically, the second tube 75, the second shrinkage tube 76 and the third tube 77 are not provided, so that the a-side tube 7 includes the skirt tube 71, the bottom end face 72, the first tube 73 and the first shrinkage tube 74 connected in sequence from bottom to top; alternatively, the second shrink tube 76 and the third tube 77 are not provided, so that the a-side tube 7 includes the skirt tube 71, the bottom end surface 72, the first tube 73, the first shrink tube 74, and the second tube 75 connected in this order from bottom to top. These different a-side tube 7 settings can be adjusted according to the actual production design requirements.

For the connection between the small choke sleeve 8 and the A-side pipe 7, the small choke sleeve and the A-side pipe are both made of metal materials and can be directly welded together; for the assembly relationship between the two, the small choke sleeve 8 comprises a choke tube section 81, a flange 82, and the flange 82 is arranged around the outer edge of the upper end of the choke tube section 81. The flange 82 is clamped with the third pipe body 77; preferably, the outer edge diameter of the flange 82 is equal to the inner diameter of the third pipe body 77, or the flange 82 is in interference fit with the third pipe body 77; the outer diameter of the choke tube section 81 is smaller than the inner diameter of the third tube body 77, the upper end of the choke tube section 81 is connected with the flange 82, and the lower end of the choke tube section 81 extends into the a-side tube 7.

After the description of the respective parts of the exhaust pipe assembly, the structure of the upper jig 1 and the assembly condition of the exhaust pipe assembly in the upper jig 1 will be described:

the upper clamp 1 is provided with a main cavity 10, the main cavity 10 penetrates through the upper clamp 1 in the vertical direction, and the main cavity 10 is at least concentrically arranged with the exhaust pipe 3, the insulating ring 5 and the side A pipe 7; specifically, the main cavity 10 includes, from top to bottom, a first chamber 11, a second chamber 12, a third chamber 13, a fourth chamber 14, a fifth chamber 15, and a sixth chamber 16 that are sequentially connected, where the first chamber 11, the second chamber 12, the third chamber 13, the fourth chamber 14, the fifth chamber 15, and the sixth chamber 16 are all concentrically arranged.

The inner wall of the first chamber 11 may be attached to the outer wall of the first pipe section 31 of the exhaust pipe 3, or may not be attached to the outer wall of the first pipe section 31, and at this time, the first pipe section 31 may be attached to the exhaust pipe assembly by another chamber, so that it is ensured in space that the first pipe section 31 can penetrate through the first chamber 11. The inner wall of the third chamber 13 is attached to a portion of the second pipe section 33 of the exhaust pipe 3, the second chamber 12 is a chamber that gradually expands along an opening from top to bottom, and the first chamber 11, the second chamber 12, the third chamber 13 and the exhaust pipe 3 are all concentrically arranged. Specifically, the first chamber 11 is disposed concentrically with the first pipe section 31, the inner wall of the third chamber 13 is fitted to at least part of the outer wall of the second pipe section 33 of the exhaust pipe 3, and the third chamber 13 is disposed concentrically with the second pipe section 33. For example: the first end face 32 of the second pipe section 33 is attached to the inner wall of the third chamber 13, and the circumferential side wall of the second pipe section 33 may or may not be attached to the inner wall of the third chamber 13.

For the second chamber 12, it is a transition chamber; the second chamber 12 is arranged concentrically with the first pipe section 31, but the inner wall of the second chamber 12 is not attached to the outer wall of the first pipe section 31 of the exhaust pipe 3; preferably, the diameter of the second chamber 12 on the horizontal plane gradually increases from top to bottom, that is, the second chamber 12 is an open chamber gradually expanding from top to bottom, so that the exhaust pipe 3 is conveniently loaded into or unloaded from the main cavity 10, and the convenience in assembling and disassembling the exhaust pipe assembly in the brazing fixture is improved.

In addition, the top of first cavity 11 sets up second chamfer 18, is convenient for pack into or pour out blast pipe 3 from first cavity 11 on the one hand, improves the dismouting convenience between blast pipe subassembly and the last anchor clamps 1, and on the other hand has saved the partial structure of last anchor clamps 1, reduces the material, practices thrift the cost.

The inner wall of the fourth chamber 14 is partially attached to the outer wall of the insulating ring 5, and the fourth chamber 14 is concentrically arranged with the insulating ring 5.

It is considered that the welding position is mainly at the upper and lower ends of the insulating ring 5, specifically, between the insulating ring 5 and the exhaust pipe 3 and between the insulating ring 5 and the a-side pipe 7 when welding the exhaust pipe assembly. In order to ensure the uniformity of heating at the welding position of the exhaust pipe assembly, as a preferred scheme of the embodiment, the through hole 2 is directly communicated with the fourth chamber 14, so that in the welding process, the high-temperature environment outside the upper clamp 1 can be directly communicated with the fourth chamber 14 through the through hole 2, and the upper end and the lower end of the insulating ring 5 in the fourth chamber 14 can be directly and uniformly heated, so that on one hand, the welding uniformity is improved, the welding effect is improved, on the other hand, the welding speed is improved, and the welding efficiency and the production efficiency of the exhaust pipe assembly are improved.

The sixth chamber 16 is attached to a part of the a-side pipe 7, and the fifth chamber 15 and the sixth chamber 16 are both arranged concentrically with the a-side pipe 7. Specifically, the fifth chamber 15 is disposed concentric with the first shrink tube 74. The inner wall of the sixth chamber 16 is attached to the outer wall of the first pipe body 73 of the a-side pipe 7, and the sixth chamber 16 is arranged concentrically with the first pipe body 73. So that concentric assembly of the a-side pipe 7 with other exhaust pipe assemblies can be achieved.

Since the a-side tube 7 is already an integral part before the welding assembly, specifically, if the a-side tube 7 is provided with the second tube body 75, the second shrink tube 76, and the third tube body 77, the skirt tube body 71, the bottom end face 72, the first tube body 73, the first shrink tube 74, the second tube body 75, the second shrink tube 76, and the third tube body 77 are already in an integral state. The concentric arrangement of the fourth chamber 14, the fifth chamber 15 and the sixth chamber 16 makes it possible to concentrically assemble and position the insulating ring 5 and the a-side tube 7 while the concentric arrangement of the fifth chamber 15 and the sixth chamber 16 makes it possible to concentrically position the insulating ring 7 and the a-side tube 7.

At this time, if the second tube body 75, the second shrink tube 76, and the third tube body 77 are provided for the a-side tube 7, additional concentric limitation of the second tube body 75, the second shrink tube 76, and the third tube body 77 in space position may be unnecessary, and in this embodiment, the second tube body 75, the second shrink tube 76, and the third tube body 77 may be provided in the fourth chamber 14 or the fifth chamber 15, or between the fourth chamber 14 and the fifth chamber 15, as long as there is a space for accommodating the relevant structure in the vertical length. For the arrangement of the second tube 75, the a-side tube 7 without the second shrink tube 76 and the third tube 77 can be arranged in the same structure, which is easy to be considered in terms of space structural design and will not be described in detail.

In addition, the bottom of the sixth chamber 16 is provided with a first chamfer 17, so that on one hand, the A-side pipe 7 can be conveniently put in or taken out of the sixth chamber 16, the convenience in assembly and disassembly between the exhaust pipe assembly and the upper clamp 1 is improved, on the other hand, part of the structure of the upper clamp 1 is omitted, materials are reduced, and cost is saved.

Therefore, through setting up a plurality of cavity structures that set up with one heart in last anchor clamps 1, laminate spacingly to the relevant subassembly structure of blast pipe subassembly for the relevant subassembly structure of blast pipe subassembly is concentric assembly equally with corresponding cavity structure, thereby has ensured that last anchor clamps 1 have good concentricity restriction to the relevant subassembly structure of blast pipe subassembly, has avoided taking place the condition of dislocation between each spare part to a certain extent, is favorable to improving the yields of finished product after the welding.

In addition, the bottom outer fringe of going up anchor clamps 1 sets up third chamfer 19, and the operating personnel of being convenient for picks up anchor clamps 1 on the one hand, and on the other hand has saved the partial structure of going up anchor clamps 1, reduces the material consumption, practices thrift the cost.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a fixture on magnetron blast pipe subassembly brazing, its characterized in that goes up anchor clamps (1) have main cavity body (10), blast pipe subassembly sets up in main cavity body (10), main cavity body (10) set up with the blast pipe subassembly is concentric, the lateral wall of going up anchor clamps (1) sets up through-hole (2), through-hole (2) run through the lateral wall of going up anchor clamps (1) to communicate with main cavity body (10).

2. A magnetron exhaust pipe assembly brazing upper fixture according to claim 1, wherein the side wall of the upper fixture (1) is provided with at least two through holes (2) in a circumferential array.

3. The brazing upper fixture of the magnetron exhaust pipe assembly according to claim 1 or 2, wherein the exhaust pipe assembly comprises an exhaust pipe (3), a first solder sheet (4), an insulating ring (5), a second solder sheet (6), an A-side pipe (7) and a small choke sleeve (8) which are sequentially connected from top to bottom; the main cavity (10) is at least concentric with the exhaust pipe (3), the insulating ring (5) and the side A pipe (7), and the exhaust pipe assembly is attached to a part of the main cavity (10).

4. A magnetron exhaust pipe assembly brazing upper fixture according to claim 3, wherein the main cavity (10) penetrates the upper fixture (1) in a vertical direction; the main cavity (10) comprises a first cavity (11), a third cavity (13), a fourth cavity (14) and a sixth cavity (16) from top to bottom, and the first cavity (11), the third cavity (13), the fourth cavity (14) and the sixth cavity (16) are all concentrically arranged.

5. The brazing jig for a magnetron exhaust pipe assembly according to claim 4, wherein an inner wall of the fourth chamber (14) is partially fitted to an outer wall of the insulating ring (5), and the fourth chamber (14) is disposed concentrically with the insulating ring (5).

6. A magnetron exhaust pipe assembly brazing upper fixture according to claim 5, wherein the through hole (2) communicates with the fourth chamber (14).

7. The brazing upper fixture for the magnetron exhaust pipe assembly according to claim 4, wherein the inner wall of the third chamber (13) is attached to a part of the second pipe section (33) of the exhaust pipe (3), a second chamber (12) is arranged between the first chamber (11) and the third chamber (13), the second chamber (12) is a chamber which is gradually enlarged along an opening from top to bottom, and the first chamber (11), the second chamber (12), the third chamber (13) and the exhaust pipe (3) are all concentrically arranged.

8. The brazing jig for the magnetron exhaust pipe assembly according to claim 4, wherein a fifth chamber (15) is arranged between the fourth chamber (14) and the sixth chamber (16), the sixth chamber (16) is attached to a part of the a-side pipe (7), and the fifth chamber (15) and the sixth chamber (16) are arranged concentrically with the a-side pipe (7).

9. The brazing jig for the magnetron exhaust pipe assembly according to claim 4, wherein the top end of the first chamber (11) is provided with a second chamfer (18), and the bottom end of the sixth chamber (16) is provided with a first chamfer (17).

10. A magnetron exhaust pipe assembly brazing upper fixture according to claim 1, characterized in that the bottom outer edge of the upper fixture (1) is provided with a third chamfer (19).