CN102361115B - Production method of cavity filter - Google Patents
Production method of cavity filter Download PDFInfo
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- CN102361115B CN102361115B CN201110300144.5A CN201110300144A CN102361115B CN 102361115 B CN102361115 B CN 102361115B CN 201110300144 A CN201110300144 A CN 201110300144A CN 102361115 B CN102361115 B CN 102361115B
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Abstract
The invention discloses a cavity filter and a production method thereof. The cavity filter comprises a filter cavity, a first cover board and a second cover board; the filter cavity is provided with a separation rib; the filter cavity is divide into at least two hollow cavities by the separation rib; a tuning screw is installed on the first cover board; a resonance rod is arranged on the second cover board; and the first cover board and the second cover board cover the filter cavity to form a resonance cavity. The cavity filter provided by the invention is simple in structure and convenient for assembly; according to the structural characteristics of the cavity filter, the filter is produced by adopting an extrusion device to extrude and mould metal blanks. As the extrusion mould is easier to produce, the research speed is promoted, the production efficiency is improved, the consumption of raw materials is reduced, the utilization rate of the materials is improved and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of manufacture method of cavity body filter.
Background technology
Traditional metal cavity body filter is manufactured implementation method two kinds, and a kind of is pure machine adding method; Another kind is pressure casting method.Pure machine adding method carries out machining in block of metal by machine tools, as the action such as adopt milling, cut, finally according to design drawing molding cavity.Pressure casting method is according to design drawing, completes die casting, and the die cast metal melting by die casting machine handle is to mould the inside moulding.
The present inventor is through the filter manufacturing technology of research discovery machine add-on type, cavity body structure due to filter complexity, except needing the programming of large amount of complex, outside the work such as debugging board, clamping product, each filter expends a large amount of machines and adds the time, and stock utilization is lower, make the cost of single filter very high, during large-scale production, have no cost competitiveness.
And adopt pressure casting method to solve the large-scale production Cost Problems that machine adds filter, but the design of die casting, the manufacturing cycle is longer, and die cost is high, and precision adds and decreases compared with machine.In addition, due to die casting characteristic requirements must have pattern draft, single chamber actual size is diminished, add version with pure machine and compare, radio-frequency performance declines.
Summary of the invention
The present invention, for solving the defect of making cavity body filter complex process in prior art, provides a kind of manufacture method of cavity body filter.
For achieving the above object, the present invention is by the following technical solutions:
A manufacture method for cavity body filter, comprising:
Adopt pressurizing unit that metal stock is squeezed into the filter cavity blank that inside is provided with isolation bar;
Filter cavity blank is cut into the filter cavity of required height, described isolation bar is divided into filter cavity the cavity of at least two hollows, and described isolation bar extends along the short transverse of described filter cavity body sidewall;
By the first cover plate of tuning screw being installed and cavity described in the second cover plate capping of resonant rod being installed, form resonant cavity.
The manufacture method of a kind of cavity body filter of the present invention and cavity body filter is with respect to above-mentioned prior art, simple in structure, easy to assembly, according to the design feature of cavity body filter, by adopting pressurizing unit that the method for metal stock extrusion modling is manufactured to filter, because extrusion die is more easily manufactured, therefore improve research and development speed, production efficiency is improved, reduced raw material loss simultaneously, improve stock utilization, reduced production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described.
Fig. 1 is the cavity body filter structure exploded perspective view of the embodiment of the present invention one;
Fig. 2 is the another kind of execution mode schematic diagram of the embodiment of the present invention one second cover plate;
Fig. 3 is the filter cavity blank structure schematic diagram that in the embodiment of the present invention two, pressurizing unit squeezes out;
Fig. 4 is that the embodiment of the present invention two is by the filter cavity structural representation after the cutting of filter cavity blank.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-provides a kind of cavity body filter, as shown in Figure 1 to Figure 3, comprise filter cavity 1, the first cover plate 2 and the second cover plate 3, in described filter cavity, be provided with isolation bar 4, described isolation bar 4 is divided into filter cavity the cavity of at least two hollows, and described isolation bar extends along the short transverse of described filter cavity body sidewall; On described the first cover plate, 2 are provided with on tuning screw 5, the second cover plates 3 resonant rod 8 are installed, and filter cavity 1 forms resonant cavity described in described the first cover plate 2 and the second cover plate 3 cappings.
In described filter cavity, can multiple different isolation bar be set according to demand, the height of described isolation bar and the height of cavity are contour, and described isolation bar is divided into a plurality of upper and lower penetrating hollow cavities by filter cavity.
Described the first cover plate 2 is provided with through hole, and described tuning screw 5 is arranged on described through hole.
Described in execution mode, the first cover plate 2 is provided with an installing hole, on described filter cavity body sidewall and isolation bar, is respectively equipped with installing hole, and described the first cover plate is provided with a plurality of nuts 6, and described nut 6 is fixed on the first cover plate 2 on filter cavity through installing hole.
Described in another kind of execution mode, the first cover plate 2 is directly welded on described filter cavity.
Described the first cover plate is fixed on filter cavity, and the tuning screw on described the first cover plate is in filter cavity in the cavity between isolation bar.
Described the second cover plate 3 is provided with mount pad 7, and described resonant rod 8 is arranged on described mount pad, and described the second cover plate 3 is fixed by welding on described filter cavity.Another kind of execution mode, as shown in Figure 3, described the second cover plate is provided with installing hole, is also provided with screw 9, and described screw 9 is fixed on the second cover plate on filter cavity through the installing hole of the second cover plate.
Another kind of execution mode, described resonant rod and described the second cover plate are one-body molded.
A kind of cavity body filter of the present invention is simple in structure, is convenient to manufacture, and has therefore improved research and development speed, and production efficiency is improved, and has reduced raw material loss simultaneously, has improved stock utilization, has reduced production cost.
Embodiment bis-provides a kind of manufacture method of cavity body filter, comprising:
Adopt pressurizing unit that metal stock is squeezed into the filter cavity blank that inside is provided with isolation bar;
Filter cavity blank is cut into the filter cavity of required height, described isolation bar is divided into filter cavity the cavity of at least two hollows, and described isolation bar extends along the short transverse of described filter cavity body sidewall;
By the first cover plate of tuning screw being installed and cavity described in the second cover plate capping of resonant rod being installed, form resonant cavity.
Described pressurizing unit comprises recipient, punch and extrusion die, metal stock is positioned in recipient, start pressurizing unit, punch promotes blank and squeezes out filter cavity blank to the motion of extrusion die direction, as shown in Figure 3, for squeezing out the filter cavity blank of certain length, be illustrated in figure 4 cutter sweep and the filter cavity blank of certain length cut into the filter cavity body structure of required height.
By the first cover plate of tuning screw being installed and cavity described in the second cover plate capping of resonant rod being installed, form resonant cavity step and also comprise: the second bridge welding that the first cover plate of tuning screw is installed and resonant rod is installed is connected on described cavity.
Another kind of execution mode also comprises stamping out through hole on described the first cover plate and the second cover plate, passes through hole be arranged on cavity by screw.
The present embodiment also comprises another kind of pressing method, and the step of pressing method is:
Preheated mold, mold preheating temperature is 380～540 degree, is preferably 500 degree;
Apply lubricant, extrusion billet, recipient are heated to 125 degree, at the surface-coated glass powdery lubricant of heating blank, at the inner surface coating of powdered lubricant of heating recipient;
Heating extrusion billet, will be warming up to 800 degree after extrusion billet sealing, be more slowly warming up to 1000 degree;
Extrusion molding, is placed on extrusion billet in recipient, starts extruding, and blank extrusion temperature is 1100 degree;
Annealing, puts into cold water by hot-pressed pipe and is cooled to room temperature;
Cleaning extrusion tube blank, cleans out pipe endoporus and outer surface after extruding, is conducive to subsequent handling and improves surface quality when cold rolling.
The design feature of cavity body filter of the present invention, by adopting pressurizing unit, the method for metal stock extrusion modling is manufactured to filter, because extrusion die is more easily manufactured, therefore improved research and development speed, production efficiency is improved, reduce raw material loss simultaneously, improved stock utilization, reduced production cost.
Applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (4)
1. a manufacture method for cavity body filter, is characterized in that: comprising:
Adopt pressurizing unit that metal stock is squeezed into the filter cavity blank that inside is provided with isolation bar;
Filter cavity blank is cut into the filter cavity of required height, described isolation bar is divided into filter cavity the cavity of at least two hollows, and described isolation bar extends along the short transverse of described filter cavity body sidewall;
By the first cover plate of tuning screw being installed and cavity described in the second cover plate capping of resonant rod being installed, form resonant cavity.
2. manufacture method as claimed in claim 1, it is characterized in that: adopt pressurizing unit that metal stock is squeezed into the filter cavity blank that inside is provided with isolation bar and also comprise: blank is placed in the extrusion chamber of pressurizing unit, makes punch promote blank and squeeze out filter cavity blank to the motion of extrusion die direction.
3. manufacture method as claimed in claim 1, is characterized in that: by the first cover plate of tuning screw being installed and cavity described in the second cover plate capping of resonant rod being installed, form resonant cavity step and also comprise: the second bridge welding that the first cover plate of tuning screw is installed and resonant rod is installed is connected on described cavity.
4. manufacture method as claimed in claim 1, it is characterized in that: by the first cover plate of tuning screw being installed and cavity being installed described in the second cover plate capping of resonant rod, form resonant cavity step and also comprise: will on described the first cover plate and the second cover plate, stamp out through hole, by screw, pass through hole the first cover plate and the second cover plate are arranged on cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110300144.5A CN102361115B (en) | 2011-09-30 | 2011-09-30 | Production method of cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110300144.5A CN102361115B (en) | 2011-09-30 | 2011-09-30 | Production method of cavity filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102361115A CN102361115A (en) | 2012-02-22 |
| CN102361115B true CN102361115B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110300144.5A Active CN102361115B (en) | 2011-09-30 | 2011-09-30 | Production method of cavity filter |
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| Country | Link |
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| CN (1) | CN102361115B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016104608A1 (en) * | 2016-03-14 | 2017-09-14 | Kathrein-Werke Kg | Coaxial filter in frame construction |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013189074A1 (en) * | 2012-06-21 | 2013-12-27 | 华为技术有限公司 | Cavity filter and manufacturing method thereof |
| CN103811838A (en) * | 2012-11-15 | 2014-05-21 | 庄昆杰 | Method for manufacturing frequency selector |
| CN104377405A (en) * | 2013-08-13 | 2015-02-25 | 迈特通信设备（苏州）有限公司 | Method for installing and fixing resonator in filter |
| CN103715489B (en) * | 2013-12-30 | 2016-03-23 | 安徽省大富重工技术有限公司 | Filter cover board and assembling device and the assembly method thereof of debugging screw arbor assembly |
| CN105436653A (en) * | 2015-12-11 | 2016-03-30 | 中国科学院电子学研究所 | Special welding fixture for cavity of electronic vacuum device |
| CN107681237A (en) * | 2017-10-20 | 2018-02-09 | 成都美数科技有限公司 | Adjustable type composite filter cavity |
| CN107732391A (en) * | 2017-10-23 | 2018-02-23 | 成都旭思特科技有限公司 | A kind of lid equipment of cavity body filter |
| CN108023155A (en) * | 2017-12-19 | 2018-05-11 | 江苏伊莱尔电力科技有限公司 | A kind of cavity body filter manufacture method |
| CN110289470A (en) * | 2019-03-27 | 2019-09-27 | 广东通宇通讯股份有限公司 | A kind of three-stage filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663779A (en) * | 2005-03-08 | 2005-09-07 | 华南理工大学 | Extrusion-die pressing precise forming method and apparatus therefor |
| CN201616497U (en) * | 2009-11-25 | 2010-10-27 | 沈昕 | Cavity filter |
| CN101916895A (en) * | 2010-08-20 | 2010-12-15 | 深圳市大富科技股份有限公司 | Cavity filter and manufacturing method thereof |
| CN202282435U (en) * | 2011-09-30 | 2012-06-20 | 深圳市大富科技股份有限公司 | Cavity filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58161403A (en) * | 1982-03-18 | 1983-09-26 | Nec Corp | Band-pass filter |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663779A (en) * | 2005-03-08 | 2005-09-07 | 华南理工大学 | Extrusion-die pressing precise forming method and apparatus therefor |
| CN201616497U (en) * | 2009-11-25 | 2010-10-27 | 沈昕 | Cavity filter |
| CN101916895A (en) * | 2010-08-20 | 2010-12-15 | 深圳市大富科技股份有限公司 | Cavity filter and manufacturing method thereof |
| CN202282435U (en) * | 2011-09-30 | 2012-06-20 | 深圳市大富科技股份有限公司 | Cavity filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016104608A1 (en) * | 2016-03-14 | 2017-09-14 | Kathrein-Werke Kg | Coaxial filter in frame construction |
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| CN102361115A (en) | 2012-02-22 |
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Address after: 518104, Guangdong, Shenzhen province Baoan District manhole Street oyster road manhole Industrial Company Third Industrial Zone A1, A2, A3 101 and 2 layers, A4 Applicant after: Shenzhen Tat Fook Technology Co., Ltd. Address before: The establishment of Baoan District Shiyan Town, 518108 Shenzhen Road, Guangdong province with rich industrial area A/B building Applicant before: Shenzhen Tat Fook Technology Co., Ltd. |
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Effective date of registration: 20180730 Address after: 233400 Huaiyuan County Economic Development Zone, Bengbu, Anhui Patentee after: Anhui Dafu Electromechanical Technology Co., Ltd. Address before: 518104 Floors 101, 2 and A4 of A1, A2, A3 of Shajing Street, Shajing Street, Shajing Road, Shajing Industry Co., Ltd. No. 3 Industrial Zone, Shenzhen City, Guangdong Province Patentee before: Shenzhen Tat Fook Technology Co., Ltd. |