CN103009048B - Beryllium piece riveting and pressing device installed in X-ray tube - Google Patents
Beryllium piece riveting and pressing device installed in X-ray tube Download PDFInfo
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- CN103009048B CN103009048B CN201210538137.3A CN201210538137A CN103009048B CN 103009048 B CN103009048 B CN 103009048B CN 201210538137 A CN201210538137 A CN 201210538137A CN 103009048 B CN103009048 B CN 103009048B
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Abstract
The invention relates to a beryllium piece riveting and pressing device installed in an X-ray tube. The device is characterized by comprising a hydraulic device fixing frame, a hydraulic cylinder, a workpiece positioning module centralized positioning piece, a workpiece positioning module, a manual hydraulic pump, a hydraulic pump handle, a reset spring, a reset switch and a beryllium piece fixing and pressing module, which are matched with one another, wherein each component cooperatively works to rivet and press a beryllium piece. According to the device, the beryllium piece is tightly pressed in the manner of riveting and pressing, so that the connection is stable and reliable, the riveted and pressed workpieces are good in consistency, the beryllium piece can be enabled to be tightly contacted with an anode component X-ray output window, the blocking of X-ray caused by the flowing and the dispersing of silver copper soldering flux can be avoided, the influence of high-pressure stability caused by a very high temperature in the tube when the X-ray tube is manufactured can be solved, and the product quality can be further improved.
Description
Technical field
The present invention relates to a kind of X-ray tube built-in beryllium sheet riveting device.
Background technology
X-ray tube is a kind of vacuum electron device utilizing high-velocity electrons to clash into metal target surface generation X-ray, is high vacuum even ultrahigh vacuum in pipe.Directly-heated type helical tungsten filament (filament) is had in cathode assembly, the metallic target that copper billet end face is inlayed is had in anode assemblies, filament emission electronics clashes into target surface through tens thousand of after hundreds thousand of volt high pressure accelerates, negative electrode is surrounded by the metal cap slotted in a front end, the current potential of metal cap is equal to or less than negative electrode, force in the narrow zone of electron focusing on target surface, formed focal spot, X-ray just from focal spot with fan-shaped to pipe external radiation.Because the high pressure of industrial x-ray tube is very high, as 160kV ~ 300kV, therefore the various adverse effects of scattered electron to X-ray tube must be considered, the method solved settles beryllium sheet at the output window of anode assemblies, beryllium sheet can stop scattered electron to move and ABSORPTION AND SCATTERING electronics effectively, and it can be ignored the absorption of X-ray simultaneously.All the time, we utilize coreless induction furnace heating of metal solder to be welded with anode assemblies output window by beryllium sheet in a vacuum, the composition of brazing metal is the alloy of silver and copper, because the temperature of high-frequency induction heating cannot accurately control, once the slightly more higher yellow gold solder of temperature will penetrate into unwanted position, because to X-ray, yellow gold material stops that (absorption) is larger, therefore image definition can be caused in radioscopy process to decline, and the quality of product can be subject to serious impact.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide the technical scheme of a kind of X-ray tube built-in beryllium sheet riveting device, adopt the mode of cold conditions riveting, X-ray output window riveting in beryllium sheet and anode assemblies is fixed.
Described X-ray tube built-in beryllium sheet riveting device, it is characterized in that comprising hydraulic means fixed mount, hydraulic cylinder, Workpiece fixing mould central spacer, Workpiece fixing mould, hydraulic hand-pump, hydraulic pump handle, back-moving spring, reset switch and beryllium sheet to be fixed and clamped mould, hydraulic means fixed mount is made up of hydraulic means fixed mount base and hydraulic means fixed mount top cover, and hydraulic means fixed mount top cover is fixedly installed on above hydraulic means fixed mount base by pillar; Described hydraulic cylinder is connected on hydraulic means fixed mount base by hydraulic cylinder base, and hydraulic cylinder base arranges hydraulic hand-pump, hydraulic hand-pump is arranged hydraulic pump handle, hydraulic cylinder base is also provided with reset switch; Workpiece fixing mould central spacer is set above hydraulic cylinder, Workpiece fixing mould central spacer arranges Workpiece fixing mould, arrange anode assemblies in Workpiece fixing mould, be provided with beryllium sheet and be fixed and clamped mould above the beryllium sheet in anode assemblies, the beryllium sheet mould upper end that is fixed and clamped is fixed on top cover.
Described X-ray tube built-in beryllium sheet riveting device, is characterized in that described hydraulic cylinder base is connected with Pressure gauge.
Described X-ray tube built-in beryllium sheet riveting device, is characterized in that arranging back-moving spring between described Workpiece fixing mould central spacer and hydraulic cylinder base.
Described X-ray tube built-in beryllium sheet riveting device, is characterized in that the described beryllium sheet mould lower end that is fixed and clamped is provided with extruding cutting ring.
Described X-ray tube built-in beryllium sheet riveting device, is characterized in that the described structure of Workpiece fixing mould and the structure of anode assemblies match.
Described X-ray tube built-in beryllium sheet riveting device, is characterized in that the method for this device riveting beryllium pressing plate is as follows:
1) anode assemblies is placed in Workpiece fixing mould;
2) reset switch is threaded to compacted position;
3) hydraulic hand-pump is enabled, hydraulic cylinder under hand-hydraulic pumping action on move, until the beryllium sheet of anode assemblies and beryllium sheet are fixed and clamped, mould contacts, be pressurized to the force value of regulation gradually, the extruding cutting ring that now beryllium sheet is fixed and clamped in mould inserts on copper step adjacent with beryllium sheet in anode assemblies, the front of the part copper body of copper step to beryllium sheet is covered, thus compresses from front by beryllium sheet;
4) reset switch is threaded to the position of reset, Workpiece fixing mould automatically resets under the effect of back-moving spring, namely departs from beryllium sheet and to be fixed and clamped mould;
5) take out anode assemblies, beryllium sheet riveting completes.
The present invention adopts riveting mode to compress beryllium sheet, make stable connection reliable, and the workpiece uniformity of riveting is good, ensure that the close contact of beryllium sheet and anode assemblies X-ray output window, avoid silver-copper brazing alloy to scatter and the stop to X-ray caused simultaneously, to solve in X-ray tube manufacture process owing to managing the very high and impact that can produce high-voltage stability of interior temperature, improve the quality of products further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial structurtes schematic diagram before beryllium sheet riveting of the present invention;
Partial structurtes schematic diagram when Fig. 3 is beryllium sheet riveting of the present invention;
Fig. 4 is the partial structurtes schematic diagram after beryllium sheet riveting of the present invention;
Fig. 5 is that beryllium sheet of the present invention is fixed and clamped the structural representation of mould and anode assemblies riveting;
In figure: 1-hydraulic pump handle, 2-Pressure gauge, 3-anode assemblies, 4-Workpiece fixing mould, 5-beryllium sheet, 6-beryllium sheet is fixed and clamped mould, 7-hydraulic means fixed mount, 8-Workpiece fixing mould central spacer, 9-hydraulic cylinder, 10-back-moving spring, 11-hydraulic hand-pump, 12-reset switch.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described:
X-ray tube built-in beryllium sheet riveting device, comprise hydraulic means fixed mount 7, hydraulic cylinder 9, Workpiece fixing mould central spacer 8, Workpiece fixing mould 4, hydraulic hand-pump 11, hydraulic pump handle 1, back-moving spring 10, reset switch 12 and beryllium sheet to be fixed and clamped mould 6, hydraulic means fixed mount 7 is made up of hydraulic means fixed mount base and hydraulic means fixed mount top cover, and hydraulic means fixed mount top cover is fixedly installed on above hydraulic means fixed mount base by pillar; Hydraulic cylinder 9 is connected on hydraulic means fixed mount base by hydraulic cylinder base, hydraulic cylinder base is arranged hydraulic hand-pump 11, hydraulic hand-pump 11 is arranged hydraulic pump handle 1, down operation hydraulic pump handle 1, hydraulic cylinder 9 upwards can be boosted, hydraulic cylinder base is also provided with reset switch 12, when riveting is complete, can spinning reduction switch, hydraulic cylinder is freely fallen after rise, hydraulic cylinder base is connected with Pressure gauge 2, force value can be read by Pressure gauge 2; Workpiece fixing mould central spacer 8 is set above hydraulic cylinder 9, Workpiece fixing mould central spacer 8 arranges Workpiece fixing mould 4, anode assemblies 3 is set in Workpiece fixing mould 4, the structure of Workpiece fixing mould and the structure of anode assemblies match, be provided with beryllium sheet above beryllium sheet 5 in anode assemblies 3 to be fixed and clamped mould 6, beryllium sheet mould 6 upper end that is fixed and clamped is fixed on top cover, beryllium sheet mould 6 lower end that is fixed and clamped is provided with extruding cutting ring, and hydraulic cylinder drives Workpiece fixing mould 4 upwards to run and beryllium sheet is fixed and clamped, and mould 6 contacts; Arrange back-moving spring 10 between Workpiece fixing mould central spacer 8 and hydraulic cylinder base, back-moving spring 10 can reset by auxiliary hydraulic cylinder 9.
Operation principle: first reset switch 12 is screwed into compacted position, with hand hydrodynamic press pump handle 1, start hydraulic drive, lifting workpieces positioning module central spacer 8, the beryllium sheet 5 in anode assemblies 3 and the beryllium sheet mould 6 that is fixed and clamped is allowed to contact and to be pressurized to the force value (concrete force value can be read by Pressure gauge 2) of regulation gradually, the extruding cutting ring that now beryllium sheet is fixed and clamped in mould 6 inserts on copper step adjacent with beryllium sheet in anode assemblies 3, the front of the part copper body (circular) of copper step to beryllium sheet is covered, thus compresses from front by beryllium sheet.The front of the part copper body (circular) of copper step adjacent with beryllium sheet to beryllium sheet covers by the extruding cutting ring that the present invention utilizes beryllium sheet to be fixed and clamped in mould, namely the fixing of beryllium sheet is realized mechanically, eliminate the phenomenon that the solder transition of welding generation is wandering, guarantee x-ray imaging quality.
The method of riveting beryllium pressing plate of the present invention is as follows:
1) anode assemblies is placed in Workpiece fixing mould;
2) reset switch is threaded to compacted position;
3) hydraulic hand-pump is enabled, hydraulic cylinder under hand-hydraulic pumping action on move, until the beryllium sheet of anode assemblies and beryllium sheet are fixed and clamped, mould contacts, be pressurized to the force value (note: different anode assemblies has the pressure of regulation) of regulation gradually, the extruding cutting ring that now beryllium sheet is fixed and clamped in mould inserts on copper step adjacent with beryllium sheet in anode assemblies, the front of the part copper body of copper step to beryllium sheet is covered, thus compresses from front by beryllium sheet;
4) reset switch is threaded to the position of reset, Workpiece fixing mould automatically resets under the effect of back-moving spring, namely departs from beryllium sheet and to be fixed and clamped mould;
5) take out anode assemblies, beryllium sheet (beryllium window) riveting completes.
Compared with riveting method of the present invention is carried out with existing welding, can draw to draw a conclusion.
There is following shortcoming in welding:
1. high-frequency heating temperature is not easy to control, and causes the transition of solder to scatter, thus blocks the outgoing of X-ray, and make picture quality unclear;
2. owing to there being wandering solder, in X-ray production process, very high owing to managing interior temperature, " vaporization silver-copper brazing alloy " phenomenon may be caused, thus destroy the high-voltage stability of pipe;
3. welding completes in vacuum environment, and vacuumizing and heating all needs the longer time, thus operating efficiency is very low.
There is following advantage in riveting method of the present invention:
1. adopt hydraulic pressure to be power, can accurate hydraulic control pressure, ensure the uniformity of compression beryllium sheet;
2. eliminate the phenomenon that the solder transition of welding generation is wandering, guarantee x-ray imaging quality;
3. eliminate " vaporization silver-copper brazing alloy " phenomenon because wandering solder causes, ensure that X-ray tube high-pressure work is stablized;
4. greatly improve the efficiency of installing beryllium sheet, significantly reduce human cost and equipment dynamic cost.
Claims (4)
1.X ray tube built-in beryllium sheet riveting device, it is characterized in that comprising hydraulic means fixed mount, hydraulic cylinder, Workpiece fixing mould central spacer, Workpiece fixing mould, hydraulic hand-pump, hydraulic pump handle, back-moving spring, reset switch and beryllium sheet to be fixed and clamped mould, hydraulic means fixed mount is made up of hydraulic means fixed mount base and hydraulic means fixed mount top cover, and hydraulic means fixed mount top cover is fixedly installed on above hydraulic means fixed mount base by pillar; Described hydraulic cylinder is connected on hydraulic means fixed mount base by hydraulic cylinder base, and hydraulic cylinder base arranges hydraulic hand-pump, hydraulic hand-pump is arranged hydraulic pump handle, hydraulic cylinder base is also provided with reset switch; Workpiece fixing mould central spacer is set above hydraulic cylinder, Workpiece fixing mould central spacer arranges Workpiece fixing mould, in Workpiece fixing mould, anode assemblies is set, be provided with beryllium sheet above beryllium sheet in anode assemblies to be fixed and clamped mould, the beryllium sheet mould upper end that is fixed and clamped is fixed on top cover, and the beryllium sheet mould lower end that is fixed and clamped is provided with extruding cutting ring; The described structure of Workpiece fixing mould and the structure of anode assemblies match.
2. X-ray tube according to claim 1 built-in beryllium sheet riveting device, is characterized in that described hydraulic cylinder base is connected with Pressure gauge.
3. X-ray tube according to claim 1 built-in beryllium sheet riveting device, is characterized in that arranging back-moving spring between described Workpiece fixing mould central spacer and hydraulic cylinder base.
4. utilize X-ray tube according to claim 1 built-in beryllium sheet riveting device to a riveting method for beryllium sheet, it is characterized in that the method for this device riveting beryllium pressing plate is as follows:
1) anode assemblies is placed in Workpiece fixing mould;
2) reset switch is threaded to compacted position;
3) hydraulic hand-pump is enabled, hydraulic cylinder under hand-hydraulic pumping action on move, until the beryllium sheet of anode assemblies and beryllium sheet are fixed and clamped, mould contacts, be pressurized to the force value of regulation gradually, the extruding cutting ring that now beryllium sheet is fixed and clamped in mould inserts in anode assemblies, extruding cutting ring is inserted on the copper step adjacent with beryllium sheet, is covered in the front of the part copper body of copper step to beryllium sheet, thus compresses from front by beryllium sheet;
4) reset switch is threaded to the position of reset, Workpiece fixing mould automatically resets under the effect of back-moving spring, namely departs from beryllium sheet and to be fixed and clamped mould;
5) take out anode assemblies, beryllium sheet riveting completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210538137.3A CN103009048B (en) | 2012-12-13 | 2012-12-13 | Beryllium piece riveting and pressing device installed in X-ray tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210538137.3A CN103009048B (en) | 2012-12-13 | 2012-12-13 | Beryllium piece riveting and pressing device installed in X-ray tube |
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| CN103009048A CN103009048A (en) | 2013-04-03 |
| CN103009048B true CN103009048B (en) | 2015-04-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109866025A (en) * | 2016-12-26 | 2019-06-11 | 黄红梅 | A kind of welding wire mechanism for the assembling of anode part iron hoop sleeve |
| CN107234590A (en) * | 2017-07-25 | 2017-10-10 | 杭州凯龙医疗器械有限公司 | A kind of X-ray shell jump ring quick-fitting device and assembly method |
| CN109877566A (en) * | 2019-04-04 | 2019-06-14 | 爱克斯瑞真空技术（苏州）有限公司 | A kind of multi-functional slit beryllium piece riveting device |
| CN116652558B (en) * | 2023-08-01 | 2023-10-03 | 杭州凯龙医疗器械有限公司 | Built-in beryllium piece riveting device of X-ray tube |
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| CN2310646Y (en) * | 1997-04-02 | 1999-03-17 | 马强 | Multifunctional working device |
| JP2001310221A (en) * | 2000-04-25 | 2001-11-06 | Sony Corp | Press-fitting device and press-fitting method |
| DE202004019324U1 (en) * | 2004-12-14 | 2005-03-03 | Engmann, Thomas | Apparatus for disassembling appliances with screens or monitors such as televisions or computer monitors for recycling using a suction grip device for the screen |
| CN101633247A (en) * | 2009-08-04 | 2010-01-27 | 匡荣美 | Manual double-column hydraulic machine |
| CN201807876U (en) * | 2010-09-25 | 2011-04-27 | 山东潍坊福田模具有限责任公司 | Specific device for assembling and disassembling electric spindle |
| CN202164075U (en) * | 2011-06-23 | 2012-03-14 | 平顶山市绝缘制品股份有限公司 | Hydraulic jack with pressure gauge |
| CN202336697U (en) * | 2011-11-05 | 2012-07-18 | 天台县唐宋汽车修配厂 | Special assembling and disassembling tool for automobile steering pins |
| CN203013667U (en) * | 2012-12-13 | 2013-06-19 | 杭州万东电子有限公司 | X-ray tube built-in beryllium piece riveting and pressing device |
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