CN202984989U - Vacuum electron beam welding work fixture for cathode head component of traveling wave tube - Google Patents
Vacuum electron beam welding work fixture for cathode head component of traveling wave tube Download PDFInfo
- Publication number
- CN202984989U CN202984989U CN 201220718128 CN201220718128U CN202984989U CN 202984989 U CN202984989 U CN 202984989U CN 201220718128 CN201220718128 CN 201220718128 CN 201220718128 U CN201220718128 U CN 201220718128U CN 202984989 U CN202984989 U CN 202984989U
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- base
- electron beam
- beam welding
- briquetting
- detent
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Abstract
The utility model discloses a vacuum electron beam welding work fixture for a cathode head component of a traveling wave tube. The vacuum electron beam welding work fixture comprises a base and a press block. The base is a cylinder with one end provided with a positioning groove and external threads are arranged on the outer edge of the end of the base with the positioning groove; one end of the hollow cylindrical tube shaped press block is a non-closing end surface with an opening; the opening is provided with circular steps extending out of the other end of the press block along the axial direction; the outer diameter of the circular steps is equal to the inner diameter of the positioning groove; inner threads matching with the external threads of the end of the base are arranged at the other end of the press block which is sleeved on the base through the threads; the circular steps are capable of pressing the cathode head component into the positioning groove; and the to-be-welded portion of the cathode head component inside the positioning groove extends out from the opening. The vacuum electron beam welding work fixture is not only capable of guaranteeing the high quality of welding the cathode head component, reducing the process procedures, but also guaranteeing cathode heads from loosening or falling off during use after tubulation.
Description
Technical field
The utility model relates to the vacuum electron beam welding tool, is a kind of vacuum electron beam welding fixture of travelling-wave tubes cathode taps assembly specifically.
Background technology
Travelling-wave tubes as microwave amplifier spare has in various fields such as communication, electronic countermeasure, remote sensing monitorings the status of not replacing, to the higher requirement that travelling-wave tubes proposes, require the travelling-wave tubes can be at development aspect the reliabilities such as long-life, broadband, high-power, high efficiency along with the continuous expansion of travelling-wave tubes application.Be somewhat dependent upon the life-span of its negative electrode the service life of travelling-wave tubes, the welding quality that improves the cathode taps assembly is one of effective way that improves cathode life, need the vacuum electron beam welding fixture to be ensured and obtain high quality vacuum electron beam welding effect, frock clamp is particularly important.
Summary of the invention
Problem to be solved in the utility model is, for the deficiencies in the prior art, a kind of vacuum electron beam welding fixture of travelling-wave tubes cathode taps assembly is provided, both to have reached a welded cathode assembly in high quality, reduce process, can guarantee again the purpose that in use procedure, cathode taps can not become flexible, come off after tubulature.
realize that the technical solution of the utility model is: a kind of for travelling-wave tubes cathode taps assembly vacuum electron beam welding frock clamp, it comprises base and briquetting, described base is cylinder, the end face of this base one end is provided with the detent of placing the cathode taps assembly, and cathode taps assembly to be welded is placed in detent, described base is provided with external screw thread in an end outer rim that is provided with detent, described briquetting is the cylindrical tube shape of hollow, one end of this briquetting is the non-Closed End with an opening, described opening is provided with the step cutting pattern that stretches out to the briquetting other end along axially, the external diameter of described step cutting pattern equals the internal diameter of detent, the other end at described briquetting is provided with the internal thread that matches with base one end external screw thread, described briquetting is connected on base by thread bush, during described step cutting pattern is connected on by thread bush at briquetting and when screwing on base, cathode assembly is pressed on detent, stretch out from described opening part at the cathode assembly position to be welded that is placed in detent.
The detent degree of depth that described base is placed the cathode taps assembly is 0.7～1.2mm.
The total length of described base is 95 ± 10mm.
The height of described step cutting pattern is 1.3～1.6mm, and the width of step cutting pattern is 0.8～1mm.
The reach of described base is 10mm.
The reach of described briquetting is 10mm.
The height of described briquetting is 9.5mm.
The beneficial effects of the utility model are: at a welded cathode assembly in high quality, when reducing process, guarantee after tubulature that in use procedure, cathode taps can not become flexible, come off.
Description of drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1-base, 2-briquetting, 3-cathode taps assembly weld seam, 4-step cutting pattern, 5-detent, 6-cathode taps assembly.
The specific embodiment
Also by reference to the accompanying drawings the utility model is made below by specific embodiment and illustrating.
As shown in Figure 1, a kind of for travelling-wave tubes cathode taps assembly vacuum electron beam welding frock clamp, it comprises base 1 and 2 two parts of briquetting, and cathode taps assembly 6 to be welded is assemblied on base 1; Briquetting 2 compresses cathode taps assembly 6 to be welded with base 1 by screw threads for fastening.The detent 5 of placing cathode taps assembly 6 is arranged on base 1, and its degree of depth is 0.7～1.2mm, and this base 1 total length is 95 ± 10mm.Described briquetting 2 has the step cutting pattern 4 of energy fixed negative pole head assembly 6, is highly 1.3～1.6mm, and width is 0.8～1mm.Described base 1 is 10mm with the connecting thread length of briquetting 2, and described briquetting 2 is highly 9.5mm.
When assembling before carrying out vacuum electron beam welding, the cathode taps assembly 6 for the treatment of electron beam welding is assemblied on the detent 5 of base 1, and described detent 5 can guarantee that cathode taps assembly weld seam 3 has higher perpendicularity and concentricity precision with respect to the electron beam focus.Briquetting 2 by Screw assembly on base 1, until step cutting pattern 4 compresses cathode taps assemblies 6 to be welded.
Claims (7)
1. one kind is used for travelling-wave tubes cathode taps assembly vacuum electron beam welding frock clamp, it is characterized in that: it comprises base and briquetting, described base is cylinder, and the end face of this base one end is provided with the detent of placing the cathode taps assembly, and cathode taps assembly to be welded is placed in detent, described base is provided with external screw thread in an end outer rim that is provided with detent, described briquetting is the cylindrical tube shape of hollow, one end of this briquetting is the non-Closed End with an opening, described opening is provided with the step cutting pattern that stretches out to the briquetting other end along axially, the external diameter of described step cutting pattern equals the internal diameter of detent, the other end at described briquetting is provided with the internal thread that matches with base one end external screw thread, described briquetting is connected on base by thread bush, during described step cutting pattern is connected on by thread bush at briquetting and when screwing on base, cathode assembly is pressed on detent, stretch out from described opening part at the cathode assembly position to be welded that is placed in detent.
2. electron beam welding tool fixture as claimed in claim 1 is characterized in that: the detent degree of depth that described base is placed the cathode taps assembly is 0.7～1.2mm.
3. electron beam welding tool fixture as claimed in claim 1, it is characterized in that: the total length of described base is 95 ± 10mm.
4. electron beam welding tool fixture as claimed in claim 1, it is characterized in that: the height of described step cutting pattern is 1.3～1.6mm, the width of step cutting pattern is 0.8～1mm.
5. electron beam welding tool fixture as claimed in claim 1, it is characterized in that: the reach of described base is 10mm.
6. electron beam welding tool fixture as claimed in claim 1, it is characterized in that: the reach of described briquetting is 10mm.
7. electron beam welding tool fixture as claimed in claim 1, it is characterized in that: the height of described briquetting is 9.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718128 CN202984989U (en) | 2012-12-24 | 2012-12-24 | Vacuum electron beam welding work fixture for cathode head component of traveling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718128 CN202984989U (en) | 2012-12-24 | 2012-12-24 | Vacuum electron beam welding work fixture for cathode head component of traveling wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202984989U true CN202984989U (en) | 2013-06-12 |
Family
ID=48556210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220718128 Expired - Lifetime CN202984989U (en) | 2012-12-24 | 2012-12-24 | Vacuum electron beam welding work fixture for cathode head component of traveling wave tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202984989U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148862A (en) * | 2014-08-21 | 2014-11-19 | 中国科学院电子学研究所 | Tool fixture for assembling non-intercept grid-controlled electronic gun shadow grid and welding method |
| CN108705467A (en) * | 2018-06-07 | 2018-10-26 | 绵竹市凯瑞机械加工有限公司 | The method deformed after avoiding pieces of sheet from being pressed from both sides |
-
2012
- 2012-12-24 CN CN 201220718128 patent/CN202984989U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148862A (en) * | 2014-08-21 | 2014-11-19 | 中国科学院电子学研究所 | Tool fixture for assembling non-intercept grid-controlled electronic gun shadow grid and welding method |
| CN104148862B (en) * | 2014-08-21 | 2016-01-20 | 中国科学院电子学研究所 | Frock clamp and the welding method of the assembling of grided electron gun shadow grid is intercepted and captured for nothing |
| CN108705467A (en) * | 2018-06-07 | 2018-10-26 | 绵竹市凯瑞机械加工有限公司 | The method deformed after avoiding pieces of sheet from being pressed from both sides |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |