CN212350718U - Antenna clamp for magnetron anode assembly brazing and brazing clamp - Google Patents

Abstract

The utility model provides an antenna fixture and anchor clamps of brazing of magnetron anode assembly usefulness, the anode assembly includes an anode cylinder, magnetic pole A side, antenna and a plurality of anode plate, the slot assembly of antenna and anode plate, the antenna fixture is laminated with the top of anode assembly, the antenna fixture sets up first pore structure, first pore structure runs through the antenna fixture from top to bottom, the export of first pore structure communicates with the antenna pilot hole of magnetic pole A side, the inner chamber of anode cylinder in proper order in the vertical direction, and the export of first pore structure sets up in the top of slot in the vertical direction, makes the solder can fall into the slot through first pore structure for weld the antenna and anode plate as an organic whole; an antenna anchor clamps and anchor clamps of brazing usefulness of magnetron anode assembly, through the setting of first pore structure, be favorable to convenient and fast ground to add the solder in the draw-in groove of anode plate, the workman's of being convenient for operation.

Description

Antenna clamp for magnetron anode assembly brazing and brazing clamp

Technical Field

The utility model relates to an antenna anchor clamps and anchor clamps of brazing of usefulness of magnetron anode assembly.

Background

A magnetron is an electric vacuum device used to generate microwave energy; in the production of the magnetron, an anode assembly of the magnetron comprises an anode cylinder, an anode plate, an antenna and other parts; therefore, in the processing process of the anode assembly, all parts need to be assembled and limited through the brazing clamp, then welding is carried out, the anode assembly with an integrated structure is finally processed, and the phenomenon of air leakage cannot occur after welding and forming.

Meanwhile, the antenna is of a slender structure, so that the conditions such as looseness, displacement and the like are easy to occur, and the performance of transmitting microwaves by the magnetron is influenced; therefore, the antenna needs to be firmly welded on the anode plate in the actual magnetron production process; in the early magnetron production process of the applicant, solder is usually placed in a clamping groove of an anode plate in advance in the process of assembling each part of the anode assembly, then an antenna is clamped with the anode plate, and the part of the anode assembly and a brazing clamp are brazed after being assembled.

However, the sizes of the structures such as the anode plate, the clamping groove and the solder are small, and the operation difficulty is high for an operator to place the structure with the small size, so that the solder is not convenient to be added into the clamping groove of the anode plate, and the situation that the solder is deviated in position or is separated from the clamping groove is easy to occur in the solder placing process.

Therefore, in order to solve the problem that solder is inconvenient to add in the clamping groove, the applicant improves the structure of the corresponding brazing clamp, and particularly provides the brazing clamp.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an antenna fixture and a brazing fixture for brazing an anode assembly of a magnetron to solve the problem of inconvenience of adding solder to a slot of an anode plate in the prior art.

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

an antenna clamp for brazing an anode assembly of a magnetron comprises an anode cylinder, a magnetic pole A side, an antenna and a plurality of anode plates, wherein the antenna is assembled with a clamping groove of the anode plates, the antenna clamp is attached to the top of the anode assembly, the antenna clamp is provided with a first hole structure, the first hole structure penetrates through the antenna clamp from top to bottom, an outlet of the first hole structure is sequentially communicated with an antenna assembling hole in the magnetic pole A side and an inner cavity of the anode cylinder in the vertical direction, and an outlet of the first hole structure is arranged above the clamping groove in the vertical direction, so that solder can fall into the clamping groove through the first hole structure and is used for welding the antenna and the anode plates into a whole; by arranging the first hole structure, when solder is added into the clamping groove of the anode plate before the antenna is welded with the anode plate, the solder does not need to be added in the assembly process of each part of the anode assembly, the components of the anode assembly may be assembled with the brazing fixture, and then the brazing material may be introduced into the first hole structure, under the action of self gravity, the solder sequentially passes through the first hole structure and the antenna assembly hole and enters the inner cavity of the anode cylinder, then the solder falls into the clamping groove, so that the solder can be conveniently and quickly added into the clamping groove of the anode plate, the operation of workers is convenient, meanwhile, the first hole structure is arranged on the antenna clamp, and the falling position of the solder is limited, so that the solder can accurately fall into the clamping groove, the welding structure is used for welding the antenna and the anode plate into a whole, is favorable for ensuring the antenna and the anode plate to be firmly welded, and is favorable for improving the yield of the magnetron; in addition, through the setting of first pore structure, still be favorable to reducing the weight of antenna fixture, save antenna fixture's material, simultaneously in high temperature welding process, be favorable to high-temperature gas to flow between anode assembly, the anchor clamps of brazing, guarantee temperature evenly distributed.

Further, the first aperture structure comprises at least one setback cavity and at least one lumen cavity; in the vertical direction, the outlet of the shrinkage cavity is communicated with the inlet of the cavity; preferably, the opening size of the cavity is gradually reduced in the vertical downward direction, the opening size of the outlet of the cavity is the same as that of the inlet of the cavity, the size of the solder is less than or equal to that of the inlet of the cavity, and the size of the solder is less than or equal to that of the opening of the antenna assembly hole; therefore, the top end of the first hole structure, namely the inlet of the cavity is used as a feeding port of the solder, the opening size of the first hole structure is far larger than that of the solder, so that an operator can easily feed the solder into the first hole structure, and the solder falls to an accurate position and falls into the clamping groove through the limitation and position correction of the cavity and the cavity.

Further, the first hole structure comprises a first cavity, a first hole cavity, a second cavity and a second hole cavity which are sequentially communicated from top to bottom; preferably, the first hole cavity and the second hole cavity are both cylindrical hole cavities, and the aperture of the second hole cavity is larger than or equal to the size of the solder; the first necking cavity and the second necking cavity are both circular truncated cone-shaped hole cavities, and the hole diameter of the first necking cavity and the hole diameter of the second necking cavity are both gradually reduced in the vertical downward direction; thereby through the setting of two shrinkage cavities and two vestibules in the first pore structure, the size that the entry of first pore structure was seted up is bigger on the one hand, the workman of being more convenient for puts in the solder to first pore structure, on the other hand at two shrinkage cavities, under the effect of two vestibules, make the solder can carry out position correction many times when falling in first pore structure, make the solder can fall to accurate position, fall into the draw-in groove comparatively accurately, be favorable to guaranteeing that antenna and anode plate firmly weld, be favorable to improving the yields of magnetron.

A magnetron anode assembly brazing clamp comprises an antenna clamp, an upper clamp, a lower clamp and a center pin; wherein, go up the laminating of anchor clamps and anode assembly's top, it sets up the cell body to go up anchor clamps, antenna anchor clamps set up in the cell body, form between the cell body inner wall of antenna anchor clamps and last anchor clamps and dodge the hole, the antenna runs through and dodges the hole, go up anchor clamps, antenna anchor clamps and be common to the antenna butt for fix the spacing to the antenna, thereby antenna anchor clamps cooperate with last anchor clamps jointly, carry out centre gripping, fixed spacing to the antenna, avoid antenna and other anode assembly's spare part to take place not hard up or dislocation, be favorable to ensureing the performance of magnetron transmission microwave.

Furthermore, the groove body comprises a limiting groove and an assembling groove which are communicated with each other, the opening size of the limiting groove is smaller than that of the assembling groove, and the opening size of the limiting groove is larger than or equal to the diameter of the rod body of the antenna, so that the antenna can be conveniently arranged in the limiting groove.

Further, the antenna fixture includes spacing section, assembly segment, the assembly segment sets up in the assembly groove to with the inner wall cooperation of assembly groove, the one end and the assembly segment of spacing section are connected, the other end of spacing section extends into the spacing groove to with the inner wall cooperation of spacing groove, form between the inner wall of spacing section and spacing groove and dodge the hole, spacing section and the spacing groove of last anchor clamps are jointly to the antenna butt for it carries out the centre gripping fixed, realizes fixed spacing to the antenna, prevents that the antenna from taking place not hard up, displacement.

Furthermore, the first hole structure penetrates through the assembly section of the antenna clamp from top to bottom, so that on one hand, the welding flux is conveniently and quickly added into the clamping groove of the anode plate, the operation of workers is facilitated, meanwhile, the position of the welding flux is limited, the welding flux can accurately fall into the clamping groove, the antenna and the anode plate are favorably ensured to be firmly welded, and the yield of the magnetron is favorably improved.

Compared with the prior art, the utility model relates to an antenna anchor clamps and the anchor clamps of brazing of usefulness of magnetron anode assembly have following advantage:

the utility model discloses an antenna anchor clamps and anchor clamps of brazing of magnetron anode assembly usefulness, through carrying out structural improvement to antenna anchor clamps, through setting up first pore structure, when making with antenna and anode plate welding, when adding the solder to the draw-in groove of anode plate, need not to add in the equipment process of each spare part of anode assembly, can be with after the equipment of the anchor clamps of brazing is accomplished with each spare part of anode assembly, then drop into first pore structure with the solder, under the effect of self gravity, the solder passes through first pore structure, antenna assembly hole in proper order, get into the inner chamber of anode cylinder, then fall in the draw-in groove, thereby can conveniently and swiftly add the solder to the draw-in groove of anode plate, be convenient for workman's operation, first pore structure can prescribe a limit to the whereabouts position of solder simultaneously, make the solder can fall in the draw-in groove comparatively accurately, the antenna and the anode plate are firmly welded, and the yield of the magnetron is improved;

in addition, through the setting of first pore structure, still be favorable to reducing the weight of antenna fixture, save antenna fixture's material, simultaneously in high temperature welding process, be favorable to high-temperature gas to flow between anode assembly, the anchor clamps of brazing, guarantee temperature evenly distributed.

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 a schematic view illustrating an assembly of a magnetron anode assembly according to an embodiment of the present invention before welding;

FIG. 2 is an exploded view of a magnetron anode assembly according to an embodiment of the invention before welding;

fig. 3 is a schematic view illustrating an assembly of an antenna and an anode plate in an anode assembly of a magnetron according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating an assembly of an antenna fixture and an upper fixture in a magnetron anode assembly brazing fixture according to an embodiment of the present invention;

fig. 5 is a top view of an antenna fixture in a magnetron anode assembly brazing fixture according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of an antenna fixture in a magnetron anode assembly brazing fixture according to an embodiment of the present invention;

fig. 7 is a top view of an upper fixture in a brazing fixture for a magnetron anode assembly according to an embodiment of the present invention;

fig. 8 is a bottom view of an upper fixture in a brazing fixture for a magnetron anode assembly according to an embodiment of the present invention;

fig. 9 is a cross-sectional view taken along the line a-a in fig. 8 according to an embodiment of the present invention;

FIG. 10 is a top view of a lower fixture of a magnetron anode assembly brazing fixture in accordance with an embodiment of the present invention;

fig. 11 is a sectional view taken along the direction B-B in fig. 10 according to the embodiment of the present invention.

Description of reference numerals:

the antenna fixture comprises an antenna fixture 1, a limiting section 11, an assembling section 12, a first hole structure 13, a first cavity 131, a first cavity 132, a second cavity 133 and a second cavity 134; the upper fixture 2, the groove body 21, the limiting groove 211, the assembling groove 212, the first lightening hole 22, the pressing plate 23, the boss 24, the first lightening groove 25, the lower fixture 3, the first base 31, the second base 32, the central hole 33, the central groove 34, the second lightening hole 35, the bearing surface 36, the central pin 4, the anode cylinder 5, the small equalizing ring 51, the large equalizing ring 52, the magnetic pole A side 6, the central hole 61, the antenna assembling hole 62, the antenna 7, the clamping jaw 71, the anode plate 8, the clamping groove 81, the equalizing ring groove 82, the welding wire 9 and the lightening hole 10.

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 words used herein to indicate orientation are to indicate orientation of the relevant element under normal circumstances of placement or normal assembly.

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

In order to solve the problems that in the prior art, the structural design of a brazing clamp is unreasonable, and especially, fixing and limiting of a plurality of anode plates are difficult in the process of assembling and welding an anode assembly, the embodiment provides the brazing clamp for the anode assembly of the magnetron, as shown in fig. 1-11, the brazing clamp comprises an upper clamp 2, a lower clamp 3 and a center pin 4, the anode assembly is arranged between the upper clamp 2 and the lower clamp 3, the upper clamp 2 is attached to the top of the anode assembly, the lower clamp 3 is matched with the bottom of the anode assembly, and each anode plate 8 of the anode assembly is supported and limited in the vertical direction; the center pin 4 is arranged in the anode assembly and is used for fixing and limiting each anode plate 8 of the anode assembly in the radial direction; specifically, the center pin 4 is arranged at the center shaft of the anode cylinder 5 of the anode assembly, the center pin 4 is abutted against each anode plate 8 in the anode assembly, and the other end of the anode plate 8 is abutted against the inner wall of the anode cylinder 5, so that under the combined action of the center pin 4 and the inner wall of the anode cylinder 5, the anode plate 8 is fixed and limited in the radial direction;

simultaneously, take place the problem of becoming flexible, displacement easily for the antenna of solving the positive pole subassembly to ensure to fix spacingly to the antenna of positive pole subassembly, the anchor clamps of brazing include antenna fixture 1, antenna fixture 1 laminates with the top of positive pole subassembly, it sets up cell body 21 to go up anchor clamps 2, antenna fixture 1 sets up in cell body 21, form between the cell body 21 inner wall of antenna fixture 1 and last anchor clamps 2 and dodge hole 10, dodge hole 10 and run through by the antenna 7 of positive pole subassembly for fix spacingly to the antenna 7 of positive pole subassembly.

After the anode assembly is arranged in the brazing clamp, the lower clamp 3 bears the anode assembly in the vertical direction and limits the anode plate 8, and the central pin 4 limits the anode plate 8 in the radial direction, so that the brazing clamp fixes and limits a plurality of anode plates 8 at the same time, the anode plates 8 and other anode assembly parts are prevented from being staggered, the yield of the magnetron is favorably ensured, and the performance of the magnetron is ensured; meanwhile, the antenna clamp 1 is matched with the upper clamp 2 together to clamp, fix and limit the antenna 7, so that the antenna 7 is prevented from loosening or misplacing with other anode assembly parts, and the performance of transmitting microwaves by a magnetron is ensured; in addition, the antenna clamp 1, the upper clamp 2 and the lower clamp 3 clamp each part of the anode assembly in the vertical direction, so that each part of the anode assembly is ensured to be tightly connected, and the dislocation of each part is prevented.

Before explaining the structure of the brazing clamp of the anode assembly of the magnetron, in order to introduce the assembling relation, the specific structure of the anode assembly is introduced;

before assembly, the anode assembly comprises an anode cylinder 5, a small grading ring 51, a large grading ring 52, a magnetic pole A side 6, an antenna 7 and a plurality of anode plates 8 which are independent of each other; meanwhile, in order to facilitate the welding of the various components, corresponding solders are also provided, such as: a welding wire 9 is arranged at the joint of the magnetic pole A side 6 and the anode cylinder 5, and solder is arranged at the joint of the antenna 7 and the anode plate 8; because in the welding process, the solder plays a role in connecting the related components into a whole, the components and the structure of the solder can be set according to the conditions of actual production needs, and the details are not repeated herein.

As shown in fig. 2-3, during assembly, the description is made in the order of assembly: the center pin 4 and a plurality of anode plates 8 are simultaneously arranged in the cylinder of the anode cylinder 5, the center pin 4 and the anode cylinder 5 are coaxially arranged, namely the center pin 4 is arranged on the center shaft of the anode cylinder 5 of the anode assembly, the center pin 4 is abutted against each anode plate 8 in the anode assembly, and the other end of each anode plate 8 is abutted against the inner wall of the anode cylinder 5; the number of the anode plates 8 is even, and the anode plates 8 are arranged in the anode cylinder 5 in an annular array mode by taking the central shaft of the anode cylinder 5 as the center; preferably, the number of the anode plates 8 is 8;

for the anode plate 8, pressure equalizing ring grooves 82 are formed at the upper end and the lower end of the anode plate; after the center pin 4, the anode plate 8 and the anode cylinder 5 are assembled, the small equalizing ring 51 and the large equalizing ring 52 are pressed into the equalizing ring groove 82 at the upper end of the anode plate 8, and the other small equalizing ring 51 and the other large equalizing ring 52 are pressed into the equalizing ring groove 82 at the lower end of the anode plate 8;

then, covering the side 6 of the magnetic pole A on the upper end of the anode cylinder 5, and arranging a welding wire 9 between the side 6 of the magnetic pole A and the anode cylinder 5; the side 6 of the magnetic pole A and the anode cylinder 5 are coaxially arranged;

for the pole a side 6, the pole a side 6 is provided with an antenna mounting hole 62, leaving a certain space for mounting the antenna 7; the center of the magnetic pole a side 6 has a recess, which is provided with a central hole 61 on the central axis of the magnetic pole a side 6; the center pin 4, the anode cylinder 5 and the magnetic pole A side 6 are coaxially arranged, and the center pin 4 penetrates through the central hole 61 and is matched with the magnetic pole A side 6, so that the magnetic pole A side 6 can be limited while the center pin 4 radially limits the anode plate 8, and the magnetic pole A side 6 and the anode cylinder 5 are prevented from being dislocated;

then, the antenna 7 is clamped with the anode plate 8; specifically, a clamping groove 81 is formed in the upper end of the anode plate 8, the claw 71 of the antenna 7 penetrates through the antenna assembling hole 62 on the side 6 of the magnetic pole a, and the claw 71 is clamped with the clamping groove 81, so that the antenna 7 is assembled;

finally, the antenna clamp 1 and the upper clamp 2 are placed on the side 6 of the magnetic pole A, and the antenna 7 is clamped, fixed and limited through the matching between the antenna clamp 1 and the upper clamp 2; and then, arranging the lower clamp 3 at the lower end of the assembled anode assembly to support the anode assembly, particularly to vertically support and limit each anode plate 8. The assembling of the anode assembly and the brazing fixture is completed, the anode assembly is sent into a hydrogen furnace for welding on the basis that the brazing fixture fixes and limits all parts of the anode assembly, and the brazing fixture is taken down after the welding is completed, so that the finished anode assembly is produced.

After the description of the components of the anode assembly, the structure of each fixture and the assembly of the anode assembly to each fixture are described:

go up anchor clamps 2 and set up cell body 21, antenna anchor clamps 1 and the cooperation of cell body 21, just form between the inner wall of antenna anchor clamps 1 and cell body 21 and dodge hole 10, dodge hole 10 and run through by antenna 7 for fix spacing antenna 7.

Specifically, the groove body 21 comprises a limiting groove 211 and an assembling groove 212 which are communicated with each other, the opening size of the limiting groove 211 is smaller than that of the assembling groove 212, and the opening size of the limiting groove 211 is larger than or equal to the diameter of the rod body of the antenna 7, so that the antenna 7 can be conveniently arranged in the limiting groove 211;

the antenna fixture 1 comprises a limiting section 11 and an assembling section 12, wherein the assembling section 12 is arranged in an assembling groove 212 and is matched with the inner wall of the assembling groove 212, one end of the limiting section 11 is connected with the assembling section 12, and the other end of the limiting section 11 extends into a limiting groove 211 and is matched with the inner wall of the limiting groove 211; form between spacing section 11 and the inner wall of spacing groove 211 and dodge hole 10, the body of rod of antenna 7 runs through dodge hole 10, and spacing section 11 and the spacing groove 211 of last anchor clamps 2 are simultaneously jointly to antenna 7 butt for it carries out the centre gripping fixed, realizes fixed spacing to antenna 7, prevents that antenna 7 from taking place not hard up, displacement.

The upper clamp 2 comprises a pressing plate 23 and a boss 24 which are concentrically arranged, and the boss 24 is connected with the lower end face of the pressing plate 23 and extends along the vertical downward direction; the lower terminal surface of clamp plate 23 and the up end laminating of magnetic pole A side 6, boss 24 and the depressed part laminating of magnetic pole A side 6 to when last anchor clamps 2 and magnetic pole A side 6 assembly, make last anchor clamps 2 and magnetic pole A side 6 fully contact, on the limiting displacement's of core pin 4 basis, continue the cooperation through the depressed part of boss 24 and magnetic pole A side 6, be favorable to further spacing magnetic pole A side 6. Preferably, the boss 24 is a circular truncated cone or a truncated cone, and the taper angle is 45 °.

However, considering that the center pin 4 penetrates through the center hole 61 of the magnetic pole a side 6, in order to avoid the upper clamp 2 from colliding with the center pin 4 when being assembled with the magnetic pole a side 6, the lower end surface of the boss 24 is provided with the first lightening groove 25, so that the center pin 4 is avoided in space during the assembly process, the material of the upper clamp 2 is saved, and the weight of the upper clamp 2 is reduced.

Meanwhile, on the basis that the first lightening grooves 25 are used as lightening structures, the upper clamp 2 is provided with a plurality of first lightening holes 22, so that the weight of the upper clamp 2 is further reduced, the material of the upper clamp 2 is saved, and meanwhile, in the high-temperature welding process, high-temperature gas can flow between the anode assembly and the brazing clamp, and the uniform temperature distribution is ensured.

The boss 24 and the pressing plate 23 are integrally formed, and the groove body 21 penetrates through a partial structure of the boss 24 and a partial structure of the pressing plate 23 in the vertical direction; thereby being beneficial to ensuring the integral mechanical strength of the upper clamp 2 on one hand and facilitating the production and the manufacture of the upper clamp 2 on the other hand.

For the antenna clamp 1, the antenna clamp and the upper clamp 2 are used together for limiting and fixing the antenna 7; however, as shown in the structures of fig. 2 and 3, during the assembly process of each part of the anode assembly and the brazing fixture, the antenna 7 is clamped with the clamping groove 81 of the anode plate 8 through the clamping jaw 71, and then the whole anode assembly is sent to a hydrogen furnace for welding after the assembly is completed;

in the process, in order to ensure that the antenna 7 and the anode plate 8 are welded firmly into an integral structure, rather than always keeping the clamping relationship, in the early magnetron production process of the applicant, solder is usually placed in the clamping groove 81 in the process of assembling each part of the anode assembly, and then the antenna 7 is clamped with the clamping groove 81 of the anode plate 8; because the anode plate 8, the slot 81, the solder and other structures are all small in size, for an operation worker, the operation difficulty is high when the structure with the small size is placed at the position, the solder is not convenient to be added into the slot 81 of the anode plate 8, in addition, the situation that the position of the solder deviates or the solder is separated from the slot 81 is easy to occur in the solder placing process, the welding is performed under the situation, not only is the incomplete welding of the antenna 7 and the anode plate 8 easy to occur, but also the situation that the antenna 7 and the anode plate 8 are not welded completely can occur, so that the antenna 7 and the anode plate 8 cannot be welded firmly according to the actual production requirement, and the yield of the magnetron is influenced.

Therefore, in order to solve the problem that solder is inconvenient to add in the card slot 81 of the anode plate 8, the antenna clamp 1 is improved by the application, specifically:

the antenna fixture 1 is provided with a first hole structure 13, and the first hole structure 13 penetrates through the assembling section 12 of the antenna fixture 1 from top to bottom; after the anode assembly and the brazing fixture are assembled, the outlet of the first hole structure 13 is sequentially communicated with the antenna assembling hole 62 on the side 6 of the magnetic pole A and the inner cavity of the anode cylinder 5 in the vertical direction, and the outlet of the first hole structure 13 is arranged above the clamping groove 81 in the vertical direction; it should be noted that, since the antenna 7 is only clamped with one anode plate 8, in the present application, the clamping slot 81 corresponding to the lower outlet of the first hole structure 13 refers to the clamping slot 81 of the anode plate 8 clamped with the antenna 7, but not the clamping slots 81 of the other anode plates 8 not assembled with the antenna 7.

By improving the antenna clamp 1, when solder is added into the clamping groove 81 of the anode plate 8 before the antenna 7 and the anode plate 8 are welded, the solder does not need to be added in the assembly process of each part of the anode assembly, after each part of the anode assembly and the brazing clamp are assembled, the solder is put into the first hole structure 13, and under the action of self gravity, the solder sequentially passes through the first hole structure 13 and the antenna assembly hole 62, enters the inner cavity of the anode cylinder 5 and then falls into the clamping groove 81, so that the solder can be conveniently and quickly added into the clamping groove 81 of the anode plate 8, the operation of workers is convenient, meanwhile, the first hole structure 13 is arranged on the antenna clamp 1, the falling position of the solder is limited, so that the solder can accurately fall into the clamping groove 81, and the firm welding of the antenna 7 and the anode plate 8 is favorably ensured, the yield of the magnetron is improved; in addition, the arrangement of the first hole structure 13 is beneficial to reducing the weight of the antenna clamp 1, saving the material of the antenna clamp 1, and simultaneously, in the high-temperature welding process, the high-temperature gas is beneficial to flowing between the anode assembly and the brazing clamp, so that the uniform temperature distribution is ensured;

in order to facilitate the administration of the filling material into the first pore structure 13, said first pore structure 13 comprises at least one setback cavity and at least one cavity; the cavity is communicated with the hole cavity and sequentially arranged in the direction from top to bottom, namely in the vertical direction, the outlet of the cavity is communicated with the inlet of the hole cavity, the outlet of the hole cavity is sequentially communicated with the antenna assembly hole 62 on the side 6 of the magnetic pole A and the inner cavity of the anode cylinder 5 in the vertical direction, and the outlet of the hole cavity is vertically arranged above the clamping groove 81; the opening size of the cavity is gradually reduced in the vertical downward direction until the outlet of the cavity is communicated with the inlet of the cavity, the opening size of the outlet of the cavity is the same as that of the inlet of the cavity, the size of the solder is not more than that of the inlet of the cavity, and the size of the solder is not more than that of the antenna assembly hole 62; therefore, the top end of the first hole structure 13, i.e. the inlet of the cavity, is used as a feeding port of the solder, the opening size of the first hole structure is far larger than the size of the solder, so that an operator can easily feed the solder into the first hole structure 13, and the solder falls to an accurate position through the limitation and position correction of the cavity and the cavity, and falls into the clamping groove 81.

Because the solder is in the whereabouts in-process, if will guarantee its whereabouts position accuracy, often need position adjustment many times to this application proposes a specific setting mode of first pore structure 13 in antenna anchor clamps 1:

the first hole structure 13 comprises a first cavity 131, a first hole cavity 132, a second cavity 133 and a second hole cavity 134 which are sequentially communicated from top to bottom, the outlet of the second hole cavity 134 is sequentially communicated with the antenna assembly hole 62 on the side 6 of the magnetic pole A and the inner cavity of the anode cylinder 5 in the vertical direction, and the outlet of the hole cavity is arranged above the clamping groove 81 in the vertical direction;

the second hole cavity 134 is a cylindrical hole cavity, and the hole diameter of the second hole cavity is larger than or equal to the size of the solder; the outlet of the second reducing cavity 133 is communicated with the inlet of the second cavity 134, and the second reducing cavity 133 is a truncated cone-shaped cavity, and the aperture of the second reducing cavity 133 is gradually reduced in the vertical downward direction until the aperture of the outlet of the second reducing cavity 133 is the same as that of the inlet of the second cavity 134; the outlet of the first bore 132 is communicated with the inlet of the second reducing cavity 133, the first bore 132 is a cylindrical bore, and the bore diameter of the first bore 132 is the same as that of the inlet of the second reducing cavity 133; the outlet of the first reducing cavity 131 is communicated with the inlet of the first cavity 132, the first reducing cavity 131 is a truncated cone-shaped cavity, and the diameter of the first reducing cavity 131 is gradually reduced in the vertical downward direction until the diameter of the outlet of the first reducing cavity 131 is the same as that of the inlet of the first cavity 132;

thereby through the setting of two shrinkage cavities and two vestibules in first pore structure 13, the size that the entry of first pore structure 13 was seted up is bigger on the one hand, the workman of being more convenient for puts into the solder in to first pore structure 13, on the other hand is in two shrinkage cavities, under the effect of two vestibules, make the solder can carry out position correction many times when falling in first pore structure 13, make the solder can fall to accurate position, fall into draw-in groove 81 comparatively accurately, be favorable to ensureing that antenna 7 and anode plate 8 firmly weld, be favorable to improving the yields of magnetron.

For the lower clamp 3, the upper end of the lower clamp 3 abuts against the center pin 4, the anode cylinder 5 and the anode plate 8 and is used for supporting and limiting the center pin 4, the anode cylinder 5 and the anode plate 8 in the vertical direction; specifically, as shown in fig. 10 to 11, the lower fixture 3 includes a first base 31 and a second base 32, the first base 31 abuts against the anode cylinder 5, one end of the second base 32 is connected to the first base 31, and the other end of the second base 32 abuts against the center pin 4 and the anode plate 8, respectively; preferably, the first base 31 and the second base 32 are concentrically arranged;

when second base 32 and anode plate 8 butt, second base 32 sets up central groove 34, the tank bottom of central groove 34 and the bottom butt of core pin 4 to through the setting of central groove 34, in the assembling process, form the space and dodge on the one hand, make second base 32 can carry out ascending support of vertical side to anode plate 8, core pin 4 simultaneously, on the other hand is favorable to saving the material of going up anchor clamps 2, reduces the weight of going up anchor clamps 2. Preferably, the central slot 34 is disposed concentrically with the second base 32.

In addition, the external diameter of first base 31 > the external diameter of anode cylinder 5, the external diameter of second base 32 is less than or equal to the internal diameter of anode cylinder 5 to when making first base 31 can fully support anode cylinder 5, second base 32 can not produce interference fit with anode cylinder 5, be favorable to guaranteeing on the one hand that second base 32 is spacing anode cylinder 5 on radial direction, prevent to take place the dislocation between the relevant part, on the other hand is convenient for after the welding of anode unit is accomplished, takes out from anchor clamps 3 down, is favorable to the operation of form removal.

In order to further save the material of the lower clamp 3 and reduce the weight of the lower clamp 3, the lower clamp 3 is provided with a weight reduction structure. Specifically, the weight reducing structure comprises a second weight reducing hole 35, and the second weight reducing hole 35 sequentially penetrates through the second base 32 and the first base 31 from bottom to top; preferably, the lower fixture 3 is provided with a plurality of second lightening holes 35, and the second lightening holes 35 are arranged in a circumferential array mode with the center of the lower fixture 3 as the center; thereby on the one hand reduced the weight of anchor clamps 3 down, saved the material of anchor clamps 3 down, on the other hand is in the high temperature welding in-process, is favorable to high-temperature gas to flow between anode assembly, the anchor clamps of brazing, guarantees temperature evenly distributed.

In addition, the weight-reducing structure further comprises a central hole 33, and the central hole 33 sequentially penetrates through the second base 32 and the first base 31 from bottom to top; preferably, the central hole 33 communicates with a central groove 34; further, the central hole 33 is concentrically disposed with the central groove 34; therefore, the material of the lower clamp 3 is further saved, the weight of the lower clamp 3 is reduced, and the uniform distribution and flow of high-temperature gas are ensured, so that the temperature between the anode assembly and the brazing clamp is uniform.

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 utility model provides an antenna fixture of usefulness of brazing of magnetron anode assembly, anode assembly includes an anode barrel (5), magnetic pole A side (6), antenna (7) and a plurality of anode plate (8), antenna (7) and draw-in groove (81) assembly of anode plate (8), characterized in that, antenna fixture (1) and anode assembly's top laminating, antenna fixture (1) sets up first pore structure (13), first pore structure (13) from the top down run through antenna fixture (1), the export of first pore structure (13) communicates with antenna pilot hole (62) of magnetic pole A side (6), the inner chamber of an anode barrel (5) in proper order in the vertical direction, just the export of first pore structure (13) sets up in the top of draw-in groove (81) in the vertical direction for the solder can fall into in draw-in groove (81) through first pore structure (13), used for welding the antenna (7) and the anode plate (8) into a whole.

2. An antenna fixture for brazing an anode assembly of a magnetron as claimed in claim 1, characterized in that said first hole structure (13) comprises at least one cavity and at least one cavity; in a vertical direction, the outlet of the throat cavity communicates with the inlet of the bore.

3. The antenna fixture for brazing a magnetron anode assembly as claimed in claim 2, wherein the opening size of the cavity is gradually reduced in a vertically downward direction, the opening size of the outlet of the cavity is the same as the opening size of the inlet of the cavity, the size of the solder is smaller than or equal to the opening size of the inlet of the cavity, and the size of the solder is smaller than or equal to the opening size of the antenna fitting hole (62).

4. The antenna fixture for brazing the anode assembly of the magnetron as claimed in claim 2, wherein the first hole structure (13) comprises a first cavity (131), a first cavity (132), a second cavity (133) and a second cavity (134) which are sequentially communicated from top to bottom.

5. The antenna fixture for brazing the anode assembly of the magnetron as claimed in claim 4, wherein the first bore (132) and the second bore (134) are both cylindrical bores, and the aperture of the second bore (134) is larger than or equal to the size of the solder; the first reducing cavity (131) and the second reducing cavity (133) are both circular truncated cone-shaped cavities, and the aperture of the first reducing cavity (131) and the aperture of the second reducing cavity (133) are gradually reduced in the vertical downward direction.

6. A magnetron anode assembly brazing clamp, characterized in that the brazing clamp comprises an antenna clamp (1) according to any one of claims 1-5, an upper clamp (2), a lower clamp (3), a center pin (4).

7. The magnetron anode assembly brazing clamp as claimed in claim 6, wherein the upper clamp (2) is attached to the top of the anode assembly, the upper clamp (2) is provided with a groove body (21), the antenna clamp (1) is arranged in the groove body (21), an avoiding hole (10) is formed between the inner walls of the groove body (21) of the antenna clamp (1) and the inner wall of the groove body (21) of the upper clamp (2), the antenna (7) penetrates through the avoiding hole (10), and the upper clamp (2) and the antenna clamp (1) are abutted to the antenna (7) together and used for fixing and limiting the antenna (7).

8. The brazing clamp for the magnetron anode assembly according to claim 7, wherein the groove body (21) comprises a limiting groove (211) and an assembling groove (212) which are communicated with each other, the opening size of the limiting groove (211) is smaller than that of the assembling groove (212), and the opening size of the limiting groove (211) is larger than or equal to the diameter of the rod body of the antenna (7).

9. The magnetron anode assembly brazing clamp according to claim 8, wherein the antenna clamp (1) comprises a limiting section (11) and an assembling section (12), the assembling section (12) is arranged in an assembling groove (212) and matched with the inner wall of the assembling groove (212), one end of the limiting section (11) is connected with the assembling section (12), the other end of the limiting section (11) extends into the limiting groove (211) and is matched with the inner wall of the limiting groove (211), an avoiding hole (10) is formed between the inner walls of the limiting section (11) and the limiting groove (211), and the limiting section (11) and the limiting groove (211) of the upper clamp (2) are abutted to the antenna (7) together.

10. A magnetron anode assembly brazing clamp according to claim 9, characterized in that said first hole structure (13) penetrates the mounting section (12) of the antenna clamp (1) from top to bottom.

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