CN111545909B - Non-interception grid-control electron gun grid aligning tool - Google Patents
Non-interception grid-control electron gun grid aligning tool Download PDFInfo
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- CN111545909B CN111545909B CN202010420901.1A CN202010420901A CN111545909B CN 111545909 B CN111545909 B CN 111545909B CN 202010420901 A CN202010420901 A CN 202010420901A CN 111545909 B CN111545909 B CN 111545909B
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- 230000005855 radiation Effects 0.000 claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
The invention discloses a non-interception grid-control electron gun grid aligning tool.A pair of symmetrical fixed seats are arranged on a base, fixed beams are erected at the top ends of the fixed seats, a cover plate is arranged between the fixed seats, and the cover plate is covered on a welded cathode assembly and detachably fixed on the base through a base screw for fixing a shadow grid assembly; the cover plates are respectively provided with extension arms horizontally extending towards the fixed seat, and the extension arms extend to the lower part of the fixed beam; the fastening screw vertically penetrates through the fixed beam and is in close contact with the top end face of the extension arm, and the fastening screw is used for fixing the grid assembly between the base and the cover plate; the adjusting screw horizontally penetrates through the fixed seat and abuts against the side wall of the extension arm, and is used for precisely adjusting the butt joint condition of the control grid and the shadow grid radiation line. The non-interception grid-control electron gun grid aligning tool is simple in structure, convenient to operate, easy to accurately control the relative position of the shadow grid and the control grid, the angle adjusting precision is improved, and the welding consistency is improved.
Description
Technical Field
The invention relates to the technical field of a non-interception grid-control electron gun positioning tool in a positioning tool, in particular to a non-interception grid-control electron gun grid aligning tool.
Background
A gated electron gun is a source of particle emission for electron vacuum devices. The control principle of the grid-control electron gun is the same as that of the common triode, and the emission current of the cathode can be controlled by utilizing or arranging an electrode closer to the cathode than the anode in the axisymmetric convergence type gun, so that the aim of controlling large injection current with small power (or voltage) is fulfilled. Therefore, the volume of the microwave tube power supply can be made small, the modulation speed becomes faster, and the tactical requirements of modern electronics for resisting high-speed modulation can be met.
Particularly, the non-interception grid-control electron gun adopts a spoke-wheel type shadow grid and control grid structure, the shadow grid covers the surface of the cathode to shield part of electrons, and the electrons emitted by the cathode are emitted out in a certain shape and penetrate through the control grid without being intercepted by the control grid. This structure can achieve high insulation under a small lateral dimension restriction. In order to achieve the purpose of no interception of the control gate, the radiation angles of the shadow gate and the control gate are required to be completely coincident on the structure, which puts high requirements on the gate process for the shadow gate and the control gate.
Therefore, it is urgently needed to provide a non-interception grid-control electron gun grid-to-grid tool capable of accurately controlling the angles of a shadow grid and a control grid to the grid to solve the technical problem.
Disclosure of Invention
The invention aims to provide a non-interception grid-control electron gun grid aligning tool which is simple in structure, convenient to operate, easy to accurately control the relative position of a shadow grid and a control grid, improves the angle adjusting precision and improves the welding consistency.
In order to achieve the aim, the invention provides a non-interception grid-control electron gun grid aligning tool, which comprises a base, a fixed beam, a cover plate, an adjusting screw, a fastening screw and a base screw; wherein,
the base is provided with a pair of symmetrical fixed seats, the top ends of the fixed seats are respectively provided with a fixed beam, a cover plate is arranged between the fixed seats, and the cover plate covers the welded cathode assembly and is detachably fixed on the base through a base screw for fixing the shadow grid assembly;
the cover plates are respectively provided with extension arms horizontally extending towards the fixed seat, and the extension arms extend to the lower part of the fixed beam;
the fastening screw vertically penetrates through the fixed beam and is tightly connected with the top end face of the extension arm, and the fastening screw is used for fixing the grid assembly between the base and the cover plate;
the adjusting screw horizontally penetrates through the fixed seat and abuts against the side wall of the extension arm, and is used for precisely adjusting the butt joint condition of the control grid and the shadow grid radiation line.
Preferably, a circular observation window is formed in the center of the cover plate, and is used for measuring the angle between the control gate and the shadow gate radiation line through the observation window by using a three-dimensional detector when the angle of the control gate radiation line is adjusted.
Preferably, the fixed beam is detachably fixed to the fixed seat by a plurality of fixed beam screws.
Preferably, a plurality of pins are arranged on the bottom end face of the cover plate, and the pins are matched with pin holes in the control grid assembly and used for fixing the relative position of the cover plate and the control grid assembly.
Preferably, the material of the base, the fixing beam, the cover plate, the adjusting screw, the fastening screw, the fixing beam screw and the base screw is 1Cr18Ni9 Ti.
According to the technical scheme, the control grid assembly is integrated with adjustment, observation and positioning, the cover plate is connected with the control grid assembly through the pin, the relative position is fixed, the control grid is rotated by changing the angle of the cover plate through the adjusting screw, the angle of the control grid and the radiation line of the shadow grid is observed through the observation window in the cover plate, and when the two radiation lines are completely overlapped, the fastening screw is screwed to fix the relative position. This locate mode utilizes adjusting screw's rotation to replace the direct rotation of control gate, has increased the precision of angle modulation, can observe the relative position of shadow bars and control gate radiation line in real time through the observation window, can effectively fix the relative position after the adjustment moreover, has guaranteed the realization of product uniformity.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which 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 principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a non-interception grid-control electron gun grid-aligning tool provided by the invention;
fig. 2 is a cross-sectional view showing the effect of using a gate tool of a non-interception gate-controlled electron gun according to the present invention.
Description of the reference numerals
1-base 2-fixed beam
3-cover plate 4-adjusting screw
5-fastening screw 6-fixed beam screw
7-base screw
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "upper, lower, top, bottom" and the like included in a term merely represent the orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the term.
Referring to fig. 1 and 2, the invention provides a non-interception grid-control electron gun grid aligning tool, which comprises a base 1, a fixed beam 2, a cover plate 3, an adjusting screw 4, a fastening screw 5 and a base screw 7; wherein,
a pair of symmetrical fixed seats are arranged on the base 1, fixed beams 2 are erected at the top ends of the fixed seats, a cover plate 3 is arranged between the fixed seats, and the cover plate 3 covers the welded cathode assembly and is detachably fixed on the base 1 through a base screw 7 for fixing the shadow grid assembly;
the cover plate 3 is horizontally extended towards the fixed seat to form extension arms which extend to the lower part of the fixed beam 2;
the fastening screw 5 vertically penetrates through the fixed beam 2 and is tightly connected with the top end surface of the extension arm, and is used for fixing the grid assembly between the base 1 and the cover plate 3; therefore, the relative position of the shadow gate control gate can be kept unchanged in the laser welding and moving processes after the adjustment is finished.
The adjusting screw 4 horizontally penetrates through the fixed seat and abuts against the side wall of the extension arm, and is used for precisely adjusting the butt joint condition of the control grid and the shadow grid radiation line.
In the present embodiment, in order to ensure the adjustment accuracy, it is preferable that a circular observation window is formed in the center of the cover plate 3, and the three-dimensional detector is used to measure the angles of the control grid and the shadow grid radiation through the observation window when the angles of the control grid radiation are adjusted until the two completely coincide with each other.
In order to facilitate quick disassembly and assembly and fixation, the fixed beam 2 is preferably detachably fastened to the fixed base by means of a plurality of fixed beam screws 6.
In order to fix the relative position of the cover plate 3 and the control gate assembly, preferably, a plurality of pins are disposed on the bottom end surface of the cover plate 3, and the pins are matched with pin holes on the control gate assembly to fix the relative position of the cover plate 3 and the control gate assembly.
In addition, in order to ensure that the tool part has enough strength and smoothness, the material of the base 1, the fixing beam 2, the cover plate 3, the adjusting screw 4, the fastening screw 5, the fixing beam screw 6 and the base screw 7 is preferably 1Cr18Ni9 Ti.
Through the technical scheme, the adjustment, observation and positioning are integrated, and the cover plate 3 is connected with the control grid assembly through the pin to fix the relative position; the control grid is rotated by changing the angle of the cover plate 3 through the adjusting screw 4, the angle of the control grid and the radiation line of the shadow grid is observed through the observation window on the cover plate 3, and when the two radiation lines are completely overlapped, the fastening screw 5 is screwed to fix the relative position of the control grid and the shadow grid. This locate mode utilizes adjusting screw 4's rotation to replace the direct rotation of control gate, has increased the precision of angle modulation, can observe the relative position of shadow bars and control gate radiation line in real time through the observation window, can effectively fix the relative position after the adjustment moreover, has guaranteed the realization of product uniformity. Meanwhile, the machining precision of the tool does not need strict requirements, and the machining difficulty is greatly reduced.
Specifically, when the device is used, the cathode assembly with the shadow grid is fixed on the base 1, then the control grid assembly is placed in the cathode assembly, and the cover plate 3 is fixed at a relative position with the control grid assembly through the pin. The extension arm on the apron 3 is deepened to adjusting screw 4 department, and rotatory adjusting screw 4, the control gate subassembly that 3 connections of control apron that can be accurate rotate, sees through the angle of observation window observation shadow bars and control gate radiation under the three-dimensional detector, screws fastening screw when both complete coincidences, fixes the relative position of control gate and shadow bars.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (3)
1. A non-interception grid control electron gun grid aligning tool is characterized by comprising a base (1), a fixed beam (2), a cover plate (3), an adjusting screw (4), a fastening screw (5) and a base screw (7); wherein,
a pair of symmetrical fixed seats are arranged on the base (1), the top ends of the fixed seats are respectively provided with the fixed beams (2), the cover plate (3) is arranged between the pair of fixed seats, and the cover plate (3) is covered on the welded cathode assembly and detachably fixed on the base (1) through the base screw (7) and used for fixing the shadow grid assembly;
the cover plate (3) is provided with extension arms which horizontally extend towards the fixed seat respectively, and the extension arms extend to the lower part of the fixed beam (2);
the fastening screw (5) vertically penetrates through the fixed beam (2) and is tightly connected with the top end face of the extension arm, and is used for fixing the grid assembly between the base (1) and the cover plate (3);
the adjusting screw (4) horizontally penetrates through the fixed seat and abuts against the side wall of the extension arm, and is used for precisely adjusting the butt joint condition of the control grid and the shadow grid radiation line;
a circular observation window is formed in the center of the cover plate (3) and used for measuring the angle of the control grid and the shadow grid radiation through the observation window by adopting a three-dimensional detector when the angle of the control grid radiation is adjusted;
be equipped with a plurality of pins on apron (3) bottom surface, the pin cooperatees with the cotter hole on the control gate subassembly, is used for fixing apron (3) and control gate subassembly's relative position.
2. The screen-aligning tool of a non-interception grid-controlled electron gun according to claim 1, wherein said fixed beam (2) is detachably fixed to said fixed base by a plurality of fixed beam screws (6).
3. The pair grid tooling of the non-interception grid-controlled electron gun according to claim 1, wherein the material of the base (1), the fixed beam (2), the cover plate (3), the adjusting screw (4), the fastening screw (5), the fixed beam screw (6) and the base screw (7) is 1Cr18Ni9 Ti.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420901.1A CN111545909B (en) | 2020-05-18 | 2020-05-18 | Non-interception grid-control electron gun grid aligning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420901.1A CN111545909B (en) | 2020-05-18 | 2020-05-18 | Non-interception grid-control electron gun grid aligning tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111545909A CN111545909A (en) | 2020-08-18 |
| CN111545909B true CN111545909B (en) | 2022-01-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU445557A1 (en) * | 1972-01-03 | 1974-10-05 | Одесское специальное конструкторское бюро специальных станков | Angle of rotation |
| CN101310931A (en) * | 2007-05-24 | 2008-11-26 | 纬泰机械(上海)有限公司 | Right-angle positioning apparatus, locking pliers and F clip |
| CN101543430A (en) * | 2009-05-02 | 2009-09-30 | 邓永岱 | Positioning ruler for taking out fracture inside-fixture |
| CN101870002A (en) * | 2010-07-08 | 2010-10-27 | 哈尔滨工业大学 | A flatness error control method for large-scale optical components processed by single-point diamond milling |
| KR20120077203A (en) * | 2010-12-30 | 2012-07-10 | 성진지오텍 주식회사 | Fixing jig for welding |
| 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 |
-
2020
- 2020-05-18 CN CN202010420901.1A patent/CN111545909B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU445557A1 (en) * | 1972-01-03 | 1974-10-05 | Одесское специальное конструкторское бюро специальных станков | Angle of rotation |
| CN101310931A (en) * | 2007-05-24 | 2008-11-26 | 纬泰机械(上海)有限公司 | Right-angle positioning apparatus, locking pliers and F clip |
| CN101543430A (en) * | 2009-05-02 | 2009-09-30 | 邓永岱 | Positioning ruler for taking out fracture inside-fixture |
| CN101870002A (en) * | 2010-07-08 | 2010-10-27 | 哈尔滨工业大学 | A flatness error control method for large-scale optical components processed by single-point diamond milling |
| KR20120077203A (en) * | 2010-12-30 | 2012-07-10 | 성진지오텍 주식회사 | Fixing jig for welding |
| 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 |
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| CN111545909A (en) | 2020-08-18 |
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