CN103177913B - The tool and mould that high-precision spiral line uses and forming manufacturing method - Google Patents
The tool and mould that high-precision spiral line uses and forming manufacturing method Download PDFInfo
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- CN103177913B CN103177913B CN201310076942.3A CN201310076942A CN103177913B CN 103177913 B CN103177913 B CN 103177913B CN 201310076942 A CN201310076942 A CN 201310076942A CN 103177913 B CN103177913 B CN 103177913B
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Abstract
The tool and mould that a kind of high-precision spiral line uses and forming manufacturing method, belong to vacuum electron device field, comprise the dop being placed in the accurate winding-machine bed two ends of helix, the core bar being placed in middle part, core bar two ends are provided with the core bar stationary fixture of two hollow shape, and this fixture is provided with draw-in groove; Core bar and described stationary fixture both side ends are welded as a whole.Its forming manufacturing method operates by a-f6 flow manufacturing step.The method makes the coiling of space travelling wave tube high-precision spiral line be achieved, and easy to operate, coiling rate of finished products is greatly improved, and helix winding tolerance is not more than 2um; After adopting process process, helix surface smoothness significantly improves, and helix intensity and pliability obviously improve, and is conducive to the assembling of helix.
Description
Technical field
The invention belongs to vacuum electron device field, be related specifically to tool and mould and the forming manufacturing method of the use of high band space travelling wave tube high-precision spiral line.
Background technology
High band space travelling wave tube will be mainly used in interspace satellite communication future.Particular/special requirement due to space application makes space travelling wave tube have to improve homogeneous tube efficiency, to save power supply power consumption.It is reported, space travelling wave tube homogeneous tube efficiency improves one percentage point, and whole space loading system energy consumption will obviously decline, and economic benefit is up to several ten million dollars.Therefore the efficiency improving space travelling wave tube is very important.
Determine that space travelling wave tube efficiency key factor is interaction efficiency and electronic efficiency, and in travelling wave tube, helix pitch precision directly has influence on the raising of electronic efficiency, because the helix in high band space travelling wave tube is small-sized, general pitch is less than 0.3mm; Interior diameter is less than 0.4mm, and overall diameter is less than 0.5mm, just requires that helix pitch precision is no more than 2um for obtaining higher electronic efficiency.
Adopt traditional manufacture method, coiling core bar two ends are directly fixed in winding equipment dop, as shown in Figure 1, because high-frequency space travelling wave tube general coiling core bar diameter is less than 0.4mm, for such coiling core bar, helix band core bar when core bar surface coiling is rotated is out of shape because of stressed, the normal coiling of helix cannot be ensured, even if complete coiling reluctantly, its conforming product rate is also less than 1/10, and measure discovery pitch precision more than 7um, for high-frequency space travelling wave tube, usual helix pitch is less than 0.3mm, if precision will have a strong impact on the raising of travelling wave tube electronic efficiency and homogeneous tube efficiency more than 7um, therefore requirements at the higher level are proposed to technical process.
This invention is for above problem, in order to ensure the smooth coiling of fine pitch, high-precision spiral line, first design and process specific winding mould, then mould and core bar are welded as a whole, adopt core bar and mould integral structure to complete the coiling of high-precision spiral line, the helix completed for coiling needs the intensity of tight PROCESS FOR TREATMENT guarantee helix, toughness to carry out the assembling of helix.Therefore, this invention has very strong actual application value.
Summary of the invention
The technical issues that need to address of the present invention are, for high band space travelling wave tube high-precision spiral wire-wound system difficulty, coiling rate of finished products extremely low thus affect space travelling wave tube manufacture problem, just need to improve helix winding rate of finished products and pitch precision, object of the present invention is exactly the tool and mould and forming manufacturing method that a kind of high-precision spiral line will be provided to use, this method comprise helix winding and coiling complete after PROCESS FOR TREATMENT.
For realizing object of the present invention, the technical scheme taked is as follows, the tool and mould that a kind of high-precision spiral line uses, comprise the dop being placed in the accurate winding-machine bed two ends of helix, the core bar being placed in middle part, it is characterized in that, core bar two ends are provided with the core bar stationary fixture of two hollow shape, and this fixture is provided with draw-in groove; Core bar and described stationary fixture both side ends are welded as a whole.
According to the process of above-mentioned tool and mould coiling and shaping, it is characterized in that, operate by following process step:
A. the helix that coiling completes is placed in hydrogen stove and shapes, and is warming up to 1000 DEG C, is incubated 20 minutes;
B. rear screw line of shaping is pulled down from core bar, carries out electrochemical polish, inside and outside two-way polishing, polishing time 20 seconds;
C. by polishing rear screw line annealing in hydrogen atmosphere in hydrogen stove, oxide layer, temperature 800 DEG C, is incubated 10 minutes;
D. many helixes are fixed on mould, adopt ion sputtering mode at helix copper coating, sputtering thickness 5-10um;
E. sputter rear screw line hydrogen furnace treatment reason, temperature 780 DEG C rises to 850 DEG C, is incubated 15 minutes;
F. adopt specialized detection, measure helix pitch, tape thickness, bandwidth.
The invention has the beneficial effects as follows, the coiling of high band space travelling wave tube helix is achieved, and easy to operate, and helix winding rate of finished products is greatly improved, and rate of finished products has exceeded 80%, and coiling precision is not more than 2um; After adopting process process, helix surface smoothness significantly improves, and helix intensity and pliability obviously improve, and is conducive to the assembling of helix.
Accompanying drawing explanation
Fig. 1 is traditional helix winding core bar fixing means schematic diagram;
Fig. 2 is the present invention's core bar fixed mould schematic diagram used;
Fig. 3 is core bar and mould integral structure schematic diagram;
Fig. 4 is that high-precision spiral wire-wound makes the total schematic diagram of shape;
Fig. 5 is helix surface sputtered metal material mould therefor schematic diagram;
Fig. 6 is the tool and mould shaped structure schematic diagram that high-precision spiral line of the present invention uses.
Embodiment
With reference to Fig. 1, represent that traditional helix winding core bar is fixed on the schematic diagram on accurate winding-machine bed 1, mid portion is the core bar 5 of coiling, and accurate winding-machine bed two ends symmetrically device have dop 6 to be clamped by core bar, and the centering problem in winding process is a difficult problem always.With reference to Fig. 2, Fig. 3, represent the core bar stationary fixture 2 in hollow form adopted in the present invention, fixture is provided with draw-in groove.Core bar and described fixture both side ends are welded as a whole.Owing to overcoming the centering problem in winding process, coiling precision and conforming product rate all significantly improve.With reference to Fig. 4, represent that illustrated high-precision spiral line is disturbed and make the total schematic diagram of shape, in figure, 3 is coiling tenslator, and 4 is by the sheet metal strip turning to high-precision spiral line.With reference to Fig. 5, represent the schematic diagram carrying out metal sputtering mould 7 on helix surface, in figure, represent that fixing many helixes 8 carries out metal sputtering simultaneously.
The tool and mould forming manufacturing method flow chart that high-precision spiral line of the present invention uses is represented with reference to Fig. 6.The tool and mould forming manufacturing method that high-precision spiral line uses, by following method of operation:
A. the helix that coiling completes is placed in hydrogen stove and shapes, and is warming up to 1000 DEG C, is incubated 20 minutes;
B. rear screw line of shaping is pulled down from core bar, carries out electrochemical polish, inside and outside two-way polishing, polishing time 20 seconds;
C. by polishing rear screw line annealing in hydrogen atmosphere in hydrogen stove, oxide layer, temperature 800 DEG C, is incubated 10 minutes;
D. many helixes are fixed on mould, adopt ion sputtering mode at helix copper coating, sputtering thickness 5-10um;
E. sputter rear screw line hydrogen furnace treatment reason, temperature 780 DEG C rises to 850 DEG C, is incubated 15 minutes;
F. adopt specialized detection, measure helix pitch, tape thickness, bandwidth.
Claims (2)
1. a tool and mould for high-precision spiral line use, comprise the dop being placed in the accurate winding-machine bed two ends of helix, the core bar being placed in middle part, it is characterized in that, core bar two ends are provided with the core bar stationary fixture of two hollow shape, and this fixture is provided with draw-in groove; Core bar and described stationary fixture both side ends are welded as a whole.
2. high-precision spiral line uses the helix forming manufacturing method of tool and mould according to claim 1, it is characterized in that, operates by following process step:
A. the helix that coiling completes is placed in hydrogen stove and shapes, and is warming up to 1000 DEG C, is incubated 20 minutes;
B. rear screw line of shaping is pulled down from core bar, carries out electrochemical polish, inside and outside two-way polishing, polishing time 20 seconds;
C. by polishing rear screw line annealing in hydrogen atmosphere in hydrogen stove, oxide layer, temperature 800 DEG C, is incubated 10 minutes;
D. many helixes are fixed on mould, adopt ion sputtering mode at helix copper coating, sputtering thickness 5-10um;
E. sputter rear screw line hydrogen furnace treatment reason, temperature 780 DEG C rises to 850 DEG C, is incubated 15 minutes;
F. adopt specialized detection, measure helix pitch, tape thickness, bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076942.3A CN103177913B (en) | 2013-03-12 | 2013-03-12 | The tool and mould that high-precision spiral line uses and forming manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076942.3A CN103177913B (en) | 2013-03-12 | 2013-03-12 | The tool and mould that high-precision spiral line uses and forming manufacturing method |
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| Publication Number | Publication Date |
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| CN103177913A CN103177913A (en) | 2013-06-26 |
| CN103177913B true CN103177913B (en) | 2016-02-24 |
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| CN201310076942.3A Active CN103177913B (en) | 2013-03-12 | 2013-03-12 | The tool and mould that high-precision spiral line uses and forming manufacturing method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332371B (en) * | 2014-09-09 | 2017-04-12 | 安徽华东光电技术研究所 | Winding device and winding method for helix of travelling wave tube |
| CN108145036B (en) * | 2017-12-11 | 2019-07-05 | 西北工业大学 | A kind of elongated travelling tube helical line coiling core bar tensioning apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6584675B1 (en) * | 2000-06-09 | 2003-07-01 | Sunder S. Rajan | Method for fabricating three dimensional traveling wave tube circuit elements using laser lithography |
| CN202332776U (en) * | 2011-12-06 | 2012-07-11 | 陕西恒达机器制造有限公司 | Linear motor winding displacement type coiling machine of travelling tube helical line |
| CN102592915A (en) * | 2012-02-29 | 2012-07-18 | 安徽华东光电技术研究所 | Core rod for high-pitch precision spiral line and manufacturing method of core rod |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944749A (en) * | 1982-09-03 | 1984-03-13 | Toshiba Corp | Members of electron tube and manufacture thereof |
| JPS63131439A (en) * | 1986-11-21 | 1988-06-03 | Toshiba Corp | Manufacture of helix type traveling-wave tube |
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2013
- 2013-03-12 CN CN201310076942.3A patent/CN103177913B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6584675B1 (en) * | 2000-06-09 | 2003-07-01 | Sunder S. Rajan | Method for fabricating three dimensional traveling wave tube circuit elements using laser lithography |
| CN202332776U (en) * | 2011-12-06 | 2012-07-11 | 陕西恒达机器制造有限公司 | Linear motor winding displacement type coiling machine of travelling tube helical line |
| CN102592915A (en) * | 2012-02-29 | 2012-07-18 | 安徽华东光电技术研究所 | Core rod for high-pitch precision spiral line and manufacturing method of core rod |
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| CN103177913A (en) | 2013-06-26 |
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