CN214079675U - Magnetron blast pipe subassembly anchor clamps of brazing - Google Patents

Abstract

The utility model provides a magnetron exhaust pipe assembly brazing clamp, which at least comprises an upper clamp, wherein the upper clamp is provided with a main cavity, an exhaust pipe assembly is arranged in the main cavity, at least part of side walls of the exhaust pipe assembly and the main cavity are attached, and the upper clamp and the exhaust pipe assembly are concentrically arranged; a magnetron blast pipe subassembly anchor clamps of brazing, at least through last anchor clamps and the concentric setting between the blast pipe subassembly, carry out concentric spacing to each spare part of blast pipe subassembly under the effect of last anchor clamps, ensure the accurate degree that anchor clamps of brazing are injectd to the concentricity of blast pipe subassembly.

Description

Magnetron blast pipe subassembly anchor clamps of brazing

Technical Field

The utility model relates to a magnetron blast pipe subassembly anchor clamps of brazing.

Background

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

Because spare part is more in the blast pipe subassembly, often need a anchor clamps of brazing to fix spacing between each spare part in the blast pipe subassembly in welding process, take place the displacement and lead to leaking gas when avoiding welding. In the prior art, due to the fact that the brazing clamp is unreasonable in structural design, for example, the clamp is poor in limited concentricity, the height relation of a part of the structure in the clamp is not limited, and the like, all parts in the exhaust pipe assembly can be slightly dislocated due to transportation, movement and the like in the welding process stage after being assembled in the clamp, so that part of finished products are leaked with air, and the yield is reduced; therefore, the structural improvement of the brazing clamp becomes a technical problem to be solved.

Meanwhile, after the welding is finished, the exhaust pipe assembly needs to be taken out of the brazing fixture, and then the next exhaust pipe is assembled and welded, so that the continuous production application of the brazing fixture is realized; therefore, in the structural improvement process of the brazing fixture, the disassembly and assembly convenience of the exhaust pipe assembly in the assembling and disassembling process of the brazing fixture is also considered.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a brazing clamp for a magnetron exhaust pipe assembly, so as to solve the problem of the brazing clamp in the prior art that the structural design is not reasonable, especially the concentricity defined by the clamp is poor.

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

a brazing clamp for a magnetron exhaust pipe assembly at least comprises an upper clamp, wherein the upper clamp is provided with a main cavity, the exhaust pipe assembly is arranged in the main cavity, the exhaust pipe assembly is attached to at least part of the side wall of the main cavity, and the upper clamp and the exhaust pipe assembly are concentrically arranged; thereby carry out concentric spacing through last anchor clamps to each spare part of exhaust pipe subassembly, ensure the precision degree that brazing anchor clamps are injectd to the concentricity of exhaust pipe subassembly.

Furthermore, the exhaust pipe assembly comprises an exhaust pipe, a first solder sheet, an insulating ring, a second solder sheet, an A-side pipe and a small choke sleeve which are connected in sequence; the main cavity is at least concentrically arranged with the exhaust pipe, the insulating ring and the side pipe A; therefore, under the action of the upper clamp, all parts of the exhaust pipe assembly can be concentrically arranged according to the corresponding connection sequence, and the yield of the finished 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 second cavity, a third cavity, a fourth cavity, a fifth cavity, a sixth cavity, a seventh cavity and an eighth cavity which are sequentially communicated from top to bottom; the third chamber, the fourth chamber, the sixth chamber and the eighth chamber are all arranged concentrically; thereby through set up a plurality of concentric cavity structures that set up in last anchor clamps, it is spacing to laminate the relevant subassembly structure of exhaust pipe subassembly for the relevant subassembly structure of exhaust pipe subassembly is concentric assembly with the cavity structure that corresponds equally, thereby has ensured that last anchor clamps have good concentricity restriction to the relevant subassembly structure of exhaust pipe subassembly, has avoided the condition of taking place the dislocation between each spare part to a certain extent, is favorable to improving the off-the-shelf yields of welding back.

Further, the inner wall of third cavity and the laminating of the first pipeline section outer wall of blast pipe, the second cavity is along the cavity that the opening enlarges gradually from last to direction to when last anchor clamps carry out concentric position to the blast pipe and prescribe a limit to, also be convenient for pack into or pour the blast pipe from the main cavity body, be favorable to improving the dismouting convenience of blast pipe subassembly assembly, dismantlement in-process in the anchor clamps of brazing.

Furthermore, the inner wall of the fourth chamber is attached to the outer wall of the insulating ring, so that the insulating ring in the exhaust pipe assembly is assembled and limited by the upper clamp.

Furthermore, the sixth chamber and the eighth chamber are attached to the outer wall of the A-side pipe, so that the concentric position of the A-side pipe in the exhaust pipe assembly is limited by the upper clamp.

Furthermore, the fifth cavity is a cavity which is gradually enlarged along the opening from top to bottom, so that the side pipe A and the main cavity body are convenient to assemble or disassemble, and the assembly and disassembly convenience of the exhaust pipe assembly in the assembly and disassembly process of the brazing clamp is improved.

Furthermore, the A side pipe and the small choking sleeve are of an integrated structure or a split structure; anchor clamps include anchor clamps down, anchor clamps are the cylinder structure down, the laminating of at least partial cylinder structure of anchor clamps and exhaust pipe subassembly down for support exhaust pipe subassembly, last anchor clamps, on the one hand after the assembly is accomplished, the operating personnel of being convenient for carries out the bulk movement to anchor clamps and exhaust pipe subassembly of brazing, on the other hand, if during for the components of a whole that can function independently structure between A side pipe and the little choke sleeve, the setting of anchor clamps can be assembled and support A side pipe, little choke sleeve down, avoid taking place the condition of dislocation between each spare part, be favorable to improving the off-the-shelf yields after the welding.

Further, at least when the split structure is adopted between the A-side pipe and the small choking sleeve, the lower clamp is concentrically arranged with the A-side pipe and the small choking sleeve, so that the concentric arrangement between the small choking sleeve and the A-side pipe is ensured, and the concentricity between related parts of the exhaust pipe assembly is ensured.

Further, anchor clamps include from last first cylinder, the third cylinder that sets up to concentric down at least down, the outer wall and the laminating of choke pipe section inner wall of first cylinder, the outside of anchor clamps, little choke cover under A side pipe box is established, the outer wall of third cylinder and the laminating of the first body inner wall of A side pipe for anchor clamps, A side pipe, little choke cover are concentric to be set up down, thereby through the setting of anchor clamps down, A side pipe, little choke cover when with the assembly of lower anchor clamps, just directly realize the concentric setting between little choke cover and the A side pipe, and not only the form is simple, and the dismouting convenience is better, and the concentricity between the relevant spare part that can directly inject the exhaust pipe subassembly moreover has avoided the condition that takes place the dislocation between each spare part to a certain extent, is favorable to improving the off-the-shelf yields after the welding.

Compared with the prior art, the magnetron blast pipe assembly brazing clamp has the following advantages:

a magnetron blast pipe subassembly anchor clamps of brazing, at least through last anchor clamps and the concentric setting between the blast pipe subassembly, carry out concentric spacing to each spare part of blast pipe subassembly under the effect of last anchor clamps, ensure the accurate degree that anchor clamps of brazing are injectd to the concentricity of blast pipe subassembly.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is an exploded view of a magnetron exhaust pipe assembly according to an embodiment of the present invention before welding;

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

fig. 3 is a schematic structural view of a small choke sleeve in a magnetron exhaust pipe assembly according to an embodiment of the present invention;

fig. 4 is an isometric view of a magnetron exhaust pipe assembly according to an embodiment of the present invention, in which a side pipe a and a small choke sleeve are integrated;

fig. 5 is a cross-sectional view of an integrated structure of a side a pipe and a small choke sleeve in a magnetron exhaust pipe assembly according to an embodiment of the present invention;

fig. 6 is an isometric view of an upper fixture in a brazing fixture for a magnetron exhaust pipe assembly according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of an upper fixture in a brazing fixture for a magnetron exhaust pipe assembly according to an embodiment of the present invention;

fig. 8 is a partial enlarged view of the present invention at a in fig. 7;

fig. 9 is a top view of a lower fixture of a brazing fixture for a magnetron exhaust pipe assembly according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of a lower fixture of a brazing fixture for a magnetron exhaust pipe assembly according to an embodiment of the present invention.

Description of reference numerals:

the upper jig 1, the main body 10, the first chamber 11, the second chamber 12, the third chamber 13, the first wall 131, the first groove 132, the fourth chamber 14, the second wall 141, the second groove 142, the fifth chamber 15, the sixth chamber 16, the seventh chamber 17, the eighth chamber 18, the bottom chamfer 19, the lower jig 2, the first cylinder 21, the first chamfer 211, the top end 212, the second cylinder 22, the second chamfer 221, the third cylinder 23, the third chamfer 231, the fourth cylinder 24, the fourth chamfer 241, the fifth cylinder 25, the fifth chamfer 251, the center hole 26, the bottom weight-reducing groove 27, the weight-reducing hole 28, the exhaust pipe 3, the first pipe section 31, the first end 32, the second pipe section 33, the first solder piece 4, the insulating ring 5, the upper end 51, the second solder piece 6, the a-side pipe 7, the pipe body 71, the bottom end 72, the first pipe body 73, the first skirt contracting pipe 74, the second pipe body 75, a second shrink tube 76, a third tube body 77, a small choke sleeve 8, a choke section 81 and a flange 82.

Detailed Description

The inventive concepts of the present disclosure will be described hereinafter using terms commonly employed by those skilled in the art to convey the substance of their work to others skilled in the art. These utility concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of their inclusion to those skilled in the art.

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

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 5, before the brazing jig for an exhaust pipe assembly of the present application is described, a detailed structure of the exhaust pipe assembly will be described; before welding, the components of the exhaust pipe assembly are arranged in the main cavity 10 of the upper clamp 1 or placed on the lower clamp 2 according to a certain sequence; specifically, 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 connected in sequence; before welding, all parts in the exhaust pipe assembly are mutually independent parts and are connected together through brazing, but for the A-side pipe 7 and the small choke sleeve 8 in the exhaust pipe assembly, before welding, the A-side pipe 7 and the small choke sleeve 8 are in a split structure or an integral structure;

as shown in fig. 1, a split structure is arranged between the side a pipe 7 and the small choke sleeve 8 in fig. 1; as shown in fig. 4-5, the a-side tube 7 and the small choke sleeve 8 in fig. 4-5 are integrally formed, and an integral structure is formed between the two.

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

The exhaust pipe 3 comprises a first pipe section 31 and a second pipe section 33 which are sequentially connected from top to bottom, the inner diameter of the second pipe section 33 is larger than that of the first pipe section 31, and one end face, close to the first pipe section 31, of the second pipe section 33 is marked as a first end face 32; the second pipe section 33 is in an expanded end structure on the whole exhaust pipe 3, the second pipe section 33 is used as a transition connecting section, the exhaust pipe 3 is matched with the upper end surface 51 of the insulating ring 5, and the first solder sheet 4 is arranged between the second pipe section 33 and the upper end surface 51 of the insulating ring 5; so that, after the welding is completed, the first end face 32 of the second tubular segment 33 is connected to the first tubular segment 31; the other end of the second tube section 33 is connected to the upper end face 51 of the insulating ring 5 by means of the first solder tab 4 in the 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 tube 7 and is used for welding the insulating ring 5 and the A-side tube 7 which are made of different materials together; the side A pipe 7 comprises a skirt pipe body 71, a bottom end face 72, a first pipe body 73, a first shrinkage pipe 74, a second pipe body 75, a second shrinkage pipe 76 and a third pipe body 77 which are connected in sequence from bottom to top; the first shrinkage pipe 74 and the second shrinkage pipe 76 are both reducer pipes, and the pipe diameters of the reducer pipes are gradually reduced from bottom to top, so that the inner diameter of the first pipe 73 is larger than that of the second pipe 75, and the inner diameter of the second pipe 75 is larger than that of the third pipe 77; the top end of the third tube 77 is soldered to the lower end surface of the insulating ring 5 by the second solder piece 6.

If the A side pipe 7 and the small choke sleeve 8 are of a split structure, the small choke sleeve 8 and the A side pipe 7 are connected by metal materials and can be directly welded together; for the fitting relationship between the two, the small choke sleeve 8 comprises a choke tube section 81, a flange 82, the flange 82 surrounding the outer edge of the choke tube section 81 at its upper end. The flange 82 is clamped with the third pipe body 77; preferably, the diameter of the outer edge of the flange 82 is equal to the inner diameter of the third tube 77, or the flange 82 is in interference fit with the third tube 77; the choke section 81 has an outer diameter smaller than the inner diameter of the third tubular body 77, the upper end of the choke section 81 is connected to a flange 82, and the lower end of the choke section 81 extends into the a-side tube 7.

If the a-side pipe 7 and the small choke sleeve 8 are of an integral structure, the a-side pipe can be machined by conventional metal part machining processes such as casting, stamping and the like.

The application aims at two conditions of a split structure or an integrated structure between the A side pipe 7 and the small choking sleeve 8, and provides an embodiment of the brazing clamp for the exhaust pipe assembly of the two magnetrons respectively, which comprises the following specific contents:

example 1

In the present embodiment, the a-side pipe 7 and the small choke sleeve 8 are of a split structure before welding.

In order to solve the problem of unreasonable structural design of a brazing clamp in the prior art, especially the problem of poor concentricity defined by the clamp, the present embodiment provides a brazing clamp for a magnetron exhaust pipe assembly, as shown in fig. 6 to 10, the brazing clamp includes an upper clamp 1 and a lower clamp 2, the upper clamp 1 has a main cavity 10, the exhaust pipe assembly is disposed in the main cavity 10, the exhaust pipe assembly is attached to at least part of the side wall of the main cavity 10, the lower clamp 2 is in a cylindrical structure, the lower clamp 2 is disposed at the bottom of the exhaust pipe assembly, and at least part of the cylindrical structure of the lower clamp 2 is attached to the bottom of the exhaust pipe assembly for supporting the exhaust pipe assembly and the upper clamp 1; therefore, after the exhaust pipe assembly is installed in the brazing clamp, the exhaust pipe assembly is borne above the lower clamp 2, the upper clamp 1 is sleeved outside the exhaust pipe assembly, and the upper clamp 1 and the lower clamp 2 clamp and limit all parts of the exhaust pipe assembly together.

The structure of the upper jig 1 and the assembly of the exhaust pipe assembly in the upper jig 1 will be described:

the upper clamp 1 is provided with a main cavity 10, and the main cavity 10 penetrates through the upper clamp 1 in the vertical direction; the main cavity 10 comprises a first cavity 11, a second cavity 12, a third cavity 13, a fourth cavity 14, a fifth cavity 15, a sixth cavity 16, a seventh cavity 17 and an eighth cavity 18 which are sequentially communicated from top to bottom; at least the third chamber 13, the fourth chamber 14, the sixth chamber 16 and the eighth chamber 18 are concentrically arranged.

The inner wall of the third chamber 13 is attached to the outer wall of the first section 31 of the exhaust pipe 3. For the second chamber 12, a transition chamber; the second chamber 12 and the first pipe section 31 are arranged concentrically, 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 is gradually increased from top to bottom, that is, the second chamber 12 is an open chamber gradually enlarged from top to bottom, so that the exhaust pipe 3 is conveniently loaded into or poured out of the main chamber 10, and the assembly and disassembly convenience of the exhaust pipe assembly in the assembly and disassembly processes of the brazing jig is improved.

The inner wall and the 5 outer wall laminating of insulating ring of fourth cavity 14, fifth cavity 15 is as the changeover portion, and with second shrink tube 76, the concentric setting of third body 77, diameter on the horizontal plane of fifth cavity 15 is from last to crescent down, is convenient for assemble or dismantle A side pipe 7 and main cavity 10, is favorable to improving the dismouting convenience of blast pipe subassembly assembly, dismantlement in-process in the anchor clamps of brazing.

The inner wall of the sixth cavity 16 is attached to the outer wall of the first tube body 73 of the side a tube 7, the sixth cavity 16 is attached to the outer wall of the side a tube 75, the inner cavity of the seventh cavity 17 is attached to the outer wall of the first shrink tube 74 of the side a tube 7, and the inner wall of the eighth cavity 18 is attached to the outer wall of the first tube body 73 of the side a tube 7.

Thereby through set up a plurality of concentric cavity structures that set up in anchor clamps 1, it is spacing to laminate to the relevant subassembly structure of exhaust pipe subassembly for the relevant subassembly structure of exhaust pipe subassembly is concentric assembly with the cavity structure that corresponds equally, thereby has ensured that anchor clamps 1 has good concentricity restriction to the relevant subassembly structure of exhaust pipe subassembly, has avoided the condition of taking place the dislocation between each spare part to a certain extent, is favorable to improving the off-the-shelf yields of welding back.

In addition, the bottom outer edge of the upper clamp 1 is provided with the bottom chamfer 19, so that an operator can conveniently take the upper clamp 1, and the partial structure of the upper clamp 1 is omitted, the material consumption is reduced, and the cost is saved.

As shown in fig. 7-8, in order to further facilitate the disassembly and assembly of the upper clamp 1 and the exhaust pipe assembly, the upper clamp 1 further includes an avoiding groove cavity, the avoiding groove cavity is communicated with the main cavity 10, and the main cavity 10, the avoiding groove cavity and the exhaust pipe assembly are concentrically arranged, so as to leave a certain disassembly and assembly space for the partial assembly structure of the exhaust pipe assembly, thereby improving the convenience of disassembly and assembly. Specifically, the avoiding groove cavity comprises a first groove cavity 132 and a second groove cavity 142; because the second pipe section 33 of the exhaust pipe 3 is an expanded end part and has a certain angle, for the convenience of assembly, the third chamber 13 is provided with a first slot 132 at a side close to the second chamber 12, and the first slot 132 is communicated with the main chamber 1; similarly, since the insulating ring 5 has a certain angle of rotation between the second section 33 of the exhaust pipe 3 and the second section, the fourth chamber 14 is provided with a second slot 142 on a side close to the third chamber 13 for easy assembly, and the second slot 142 is communicated with the main chamber 1.

For the lower clamp 2, the lower clamp 2 is a cylinder structure and at least comprises a first cylinder 21 and a third cylinder 23 which are concentrically arranged from top to bottom, the outer wall of the first cylinder 21 is attached to the inner wall of the choke pipe section 81, the A-side pipe 7 is sleeved outside the lower clamp 2 and the small choke sleeve 8, the third pipe body 77 of the A-side pipe 7 is attached to or in interference fit with the flange 82 of the small choke sleeve 8, the outer wall of the third cylinder 23 is attached to the inner wall of the first pipe body 73 of the A-side pipe 7, so that the lower clamp 2, the A-side pipe 7 and the small choke sleeve 8 are concentrically arranged,

thereby through the setting of anchor clamps 2 down, A side pipe 7, little choke cover 8 when with the assembly of anchor clamps 2 down, just directly realized the concentric setting between little choke cover 8 and the A side pipe 7, not only the form is simple, the dismouting convenience is better, can directly inject the concentricity between the relevant spare part of blast pipe subassembly in addition, avoided the condition of taking place the dislocation between each spare part to a certain extent, be favorable to improving the off-the-shelf yields of welding back.

Thus, by the structural introduction, in the process of assembling the relevant parts of the exhaust pipe assembly before welding, the exhaust pipe 3, the first solder piece 4, the insulating ring 5 and the second solder piece 6 are firstly placed in the main cavity 10 of the upper fixture 1 in sequence, and the concentricity of the relevant parts can be directly limited in the placing process; then the small choke sleeve 8 is sleeved outside the first column body 21 of the lower clamp 2, the A side pipe 7 is sleeved outside the small choke sleeve 8 and the lower clamp 2, and the concentricity of the A side pipe 7 and the central hole 26 can be directly limited in the placing process; last anchor clamps 1 is detained and is put on A side pipe 7 for A side pipe 7 outer wall is concentric with main cavity body 10 inner wall, thereby at last anchor clamps 1, on anchor clamps 2 carries out the basis of injecing with one heart to the relevant spare part of blast pipe subassembly down, again with A side pipe 7 outer wall is concentric with main cavity body 10 inner wall, can be simply conveniently with last anchor clamps 1, anchor clamps 2 down, the relevant spare part of blast pipe subassembly all is injectd for concentric setting, ensure the concentricity on the one hand, carry on spacingly to the relevant spare part of blast pipe subassembly, the condition of taking place the dislocation between each spare part has been avoided, be favorable to improving the off-the-shelf yields after the welding, on the other hand to the blast pipe subassembly, realized simple convenient dismouting, be favorable to improving its dismouting convenience.

For the specific structure of the lower clamp 2, the lower clamp 2 is a stepped cylinder structure, and includes a first cylinder 21, a second cylinder 22, a third cylinder 23, a fourth cylinder 24, and a fifth cylinder 25, which are sequentially connected from top to bottom, where the first cylinder 21, the second cylinder 22, the third cylinder 23, the fourth cylinder 24, and the fifth cylinder 25 are concentrically arranged.

On the concentric cooperation of first cylinder 21 and little choke cover 8, the concentric complex basis of the first body 73 of third cylinder 23 and A side pipe 7, set up second cylinder 22 between first cylinder 21, the third cylinder 23, the external diameter of second cylinder 22 is between the external diameter of first cylinder 21, the external diameter of third cylinder 23, and the external diameter of first cylinder 21 < the external diameter of second cylinder 22 < the external diameter of third cylinder 23 promptly to on the one hand second cylinder 22 supports little choke cover 8, and on the other hand second cylinder 22 and A side pipe 7 contactless leave certain dismouting space for between third cylinder 23 and the A side pipe 7, avoid the assembly card to die, be favorable to improving the dismouting convenience of blast pipe subassembly in assembly, the dismantlement in-process in the anchor clamps of brazing.

Simultaneously, the top outer fringe of first cylinder 21 sets up first chamfer 211, and when the assembly, first chamfer 211 and little choke sleeve 8 contactless to be convenient for assemble little choke sleeve 8, also be favorable to carrying out the form removal to the exhaust pipe subassembly after the welding simultaneously, with the dismouting convenience that improves anchor clamps 2 down.

The outer wall of the third cylinder 23 is attached to the inner wall of the first pipe 73, and the third cylinder 23 and the first pipe 73 are arranged concentrically; a third chamfer 231 is arranged on the outer edge of the top of the third cylinder 23, and the third chamfer 231 is attached to and concentrically arranged with the first shrink tube 74;

in addition, in order to further limit the concentric assembly between the a-side tube 7 and the small choke sleeve 8, the outer wall of the fourth cylinder 24 is attached to the inside of the skirt tube 71, and the fourth cylinder 24 is arranged concentrically with the skirt tube 71; the top outer edge of the fourth cylinder 24 is provided with a fourth chamfer 241, the fourth chamfer 241 is not in contact with the skirt pipe body 71, so that a certain space is reserved for assembling and disassembling the A-side pipe 7, the exhaust pipe assembly is assembled and disassembled conveniently, and the disassembly and assembly convenience is improved.

The fifth column 25 is arranged to facilitate holding of the lower clamp 2 by an operator, so as to facilitate operations such as assembly, integral movement and the like of the exhaust pipe assembly; the bottom outer edge of the fifth column 25 is provided with a fifth chamfer 251, so that on one hand, an operator can conveniently take up the lower clamp 2, on the other hand, part of the structure of the lower clamp 2 is omitted, the material consumption is reduced, and the cost is saved.

In order to further save the material of the lower clamp 2 and reduce the weight of the lower clamp 2, the lower clamp 2 is provided with a weight reduction structure. Specifically, the weight reducing structure comprises a bottom weight reducing groove 27 and a weight reducing hole 28, the bottom weight reducing groove 27 is arranged at the bottom end of the fifth column 25, and the weight reducing hole 28 penetrates through the fourth column 24 and the fifth column 25 in the vertical direction; preferably, the lightening holes 28 are communicated with the bottom lightening slots 27; furthermore, the lower jig 2 is provided with a plurality of lightening holes 28, and the lightening holes 28 are arranged in a circumferential array with the center of the lower jig 2 as the center.

In addition, the weight reducing structure further comprises a central hole 26, and the central hole 26 sequentially penetrates through the first cylinder 21, the second cylinder 22, the third cylinder 23, the fourth cylinder 24 and the fifth cylinder 25 in the vertical direction; preferably, the central hole 26 communicates with a bottom lightening groove 27; thereby being beneficial to further saving the material of the lower clamp 2 and reducing the weight of the lower clamp 2.

Example 2

In this embodiment, the a-side tube 7 and the small choke sleeve 8 are integrally structured before welding.

As can be seen in embodiment 1, due to the split structure between the a-side tube 7 and the small choke sleeve 8, the lower jig 2 needs to be provided to achieve the concentric arrangement between the small choke sleeve 8 and the a-side tube 7;

however, in the present embodiment, the a-side pipe 7 and the small choke sleeve 8 are integrally structured, and there is no misalignment between the two, so that the a-side pipe 7 and the small choke sleeve 8 can be assembled without providing the lower jig 2.

Therefore, in the present embodiment, the brazing jig includes at least an upper jig 1;

the specific structure of the upper clamp 1, the matching relationship between the upper clamp 1 and the relevant components in the exhaust pipe assembly, and the like are the same as those in the corresponding technical solutions provided in embodiment 1, and are not described herein again.

In the present embodiment, during the assembly process between the relevant components of the exhaust pipe assembly before soldering, the exhaust pipe 3, the first solder sheet 4, the insulating ring 5, and the second solder sheet 6 are first placed in the main cavity 10 of the upper fixture 1 in sequence, and during the placement process, the concentricity of the relevant components can be directly defined; because the structure as an organic whole between A side pipe 7 and little choke sleeve 8, thereby need not to injecing this integrative structure, can directly put this integrative structure on table surface, moving platform mesa isoplanar, then detain upper fixture 1 and put on A side pipe 7, make A side pipe 7 outer wall and main cavity 10 inner wall concentric, thereby realize the concentric assembly between each part among brazing fixture and the blast pipe subassembly, ensure the concentricity on the one hand, carry on spacingly to the relevant spare part of blast pipe subassembly, the condition of taking place the dislocation between each spare part has been avoided, be favorable to improving the off-the-shelf yields after the welding, on the other hand to the blast pipe subassembly, simple convenient dismouting has been realized, be favorable to improving its dismouting convenience.

In addition, because the A side pipe 7 and the small choking sleeve 8 are of an integral structure, the brazing clamp can be only provided with the upper clamp 1 without the lower clamp 2, so that the number of production tools is reduced, the production cost is reduced, and an operator does not need to operate the matching between the A side pipe 7 and the small choking sleeve 8, so that the assembly difficulty of the operator is reduced, and the operation strength of the operator is reduced; meanwhile, the condition of dislocation between the A side pipe 7 and the small choking sleeve 8 can not occur, and the yield of welded finished products can be further improved.

In addition, this embodiment may also use the lower fixture 2 in embodiment 1, during the assembly process, the exhaust pipe 3, the first solder piece 4, the insulating ring 5, and the second solder piece 6 are sequentially placed in the main cavity 10 of the upper fixture 1, then the integrated structure is directly placed on the lower fixture 2, and finally the upper fixture 1 is fastened on the a-side pipe 7, so that the outer wall of the a-side pipe 7 is concentric with the inner wall of the main cavity 10.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The brazing clamp for the magnetron exhaust pipe assembly is characterized by comprising an upper clamp (1), wherein the upper clamp (1) is provided with a main cavity (10), the exhaust pipe assembly is arranged in the main cavity (10), at least part of side wall of the exhaust pipe assembly is attached to at least part of side wall of the main cavity (10), and the upper clamp (1) and the exhaust pipe assembly are concentrically arranged.

2. The magnetron exhaust pipe assembly brazing jig as defined in claim 1, wherein the exhaust pipe assembly comprises an exhaust pipe (3), a first solder piece (4), an insulating ring (5), a second solder piece (6), an A-side pipe (7), a small choke sleeve (8) connected in sequence; the main cavity (10) is at least concentrically arranged with the exhaust pipe (3), the insulating ring (5) and the side pipe A (7).

3. The magnetron exhaust pipe assembly brazing jig as defined in claim 2, wherein the main cavity (10) penetrates the upper jig (1) in a vertical direction; the main cavity (10) comprises a first cavity (11), a second cavity (12), a third cavity (13), a fourth cavity (14), a fifth cavity (15), a sixth cavity (16), a seventh cavity (17) and an eighth cavity (18) which are sequentially communicated from top to bottom; the third chamber (13), the fourth chamber (14), the sixth chamber (16) and the eighth chamber (18) are all arranged concentrically.

4. The brazing clamp for the magnetron exhaust pipe assembly as claimed in claim 3, wherein the inner wall of the third chamber (13) is attached to the outer wall of the first pipe section (31) of the exhaust pipe (3), and the opening of the second chamber (12) is gradually enlarged from top to bottom.

5. The magnetron exhaust pipe assembly brazing jig as defined in claim 3, wherein an inner wall of the fourth chamber (14) is fitted to an outer wall of the insulating ring (5).

6. The brazing jig for the magnetron exhaust pipe assembly according to claim 3, wherein the sixth chamber (16) and the eighth chamber (18) are attached to the outer wall of the A-side pipe (7).

7. The magnetron exhaust pipe assembly brazing jig as claimed in claim 5 or 6, wherein the fifth chamber (15) is a chamber having an opening which is gradually enlarged in a top-to-bottom direction.

8. The brazing clamp for the magnetron exhaust pipe assembly as claimed in claim 2, wherein the A side pipe (7) and the small choke sleeve (8) are of an integral structure or a split structure; the fixture comprises a lower fixture (2), wherein the lower fixture (2) is of a cylinder structure, and at least part of the cylinder structure of the lower fixture (2) is attached to the bottom of the exhaust pipe assembly and used for supporting the exhaust pipe assembly and the upper fixture (1).

9. The magnetron exhaust pipe assembly brazing jig as defined in claim 8, wherein the lower jig (2) is concentrically provided with the A-side pipe (7) and the small choke sleeve (8).

10. The magnetron exhaust pipe assembly brazing clamp according to claim 9, wherein the lower clamp (2) at least comprises a first cylinder (21) and a third cylinder (23) which are concentrically arranged from top to bottom, the outer wall of the first cylinder (21) is attached to the inner wall of the choke pipe section (81), the A-side pipe (7) is sleeved outside the lower clamp (2) and the small choke sleeve (8), and the outer wall of the third cylinder (23) is attached to the inner wall of the first pipe body (73) of the A-side pipe (7), so that the lower clamp (2), the A-side pipe (7) and the small choke sleeve (8) are concentrically arranged.

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