CN201693172U - Electron gun cathode base stamping die - Google Patents
Electron gun cathode base stamping die Download PDFInfo
- Publication number
- CN201693172U CN201693172U CN2010201921190U CN201020192119U CN201693172U CN 201693172 U CN201693172 U CN 201693172U CN 2010201921190 U CN2010201921190 U CN 2010201921190U CN 201020192119 U CN201020192119 U CN 201020192119U CN 201693172 U CN201693172 U CN 201693172U
- Authority
- CN
- China
- Prior art keywords
- staking punch
- diel
- die
- die shoe
- cathode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011159 matrix material Substances 0.000 claims description 13
- 230000000875 corresponding Effects 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 18
- 239000011733 molybdenum Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 239000011149 active material Substances 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000020477 pH reduction Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004166 bioassay Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model belongs to an electron gun manufacturing field, concretely to a stamping die for manufacturing the electron gun cathode base. The electron gun cathode base stamping die is positioned at a hydraulic press table top and includes an upper die and a lower die; the upper die includes an upper stamping head and an upper die holder; the lower die includes a lower die holder and a cushion block; an axial through hole is arranged in the middle of the lower die holder; the lower stamping head is mounted in an opening on the upper end of the through hole; a cathode cylinder to be processed is sleeved on the top of the lower stamping head; a bushing is sleeved outside the lower stamping head; and a plug block is plugged between the bushing and the cathode cylinder. Compared with the prior art, the electron gun cathode base stamping die connects the cathode base and the molybdenum cylinder together through stamping, thereby avoiding pollution to the cathode owing to improper welding with the molybdenum cylinder, avoiding oxidation traces inside and outside the cathode owing to acidification, guaranteeing the cathode base to have a fresh surface contacted with the active material and having better process repeatability and stability.
Description
[technical field]
The utility model belongs to electron gun and makes field, a kind of specifically diel that is used to make the gun cathode matrix.
[background technology]
When making the gun cathode matrix, metal dust need be pressed into definite shape and link into an integrated entity with the molybdenum tube.Traditional handicraft is with the metal dust briquet, soaks copper, is processed into required form then, and is fixing by soldering and the welding of molybdenum tube behind row's copper again; Shortcoming is a complex process, and scolder infiltrates in the cavernous body easily, and row's copper can not influence emission of cathode again only.
[utility model content]
The purpose of this utility model provides a kind of need not to soak copper, row's copper, diel that can the gun cathode matrix is one time punching molded.
The utility model solves the problems of the technologies described above by the following technical programs:
The diel of gun cathode matrix, be arranged at hydraulic press table top place, comprise upper die and lower die two parts, described patrix comprises staking punch and upper bolster, described counterdie comprises die shoe and cushion block, described die shoe is middle to have axially extending bore, is equipped with in this through hole upper end open to be used for staking punch down, and cathode tube to be processed is sleeved on described staking punch top down; Described staking punch down is with lining outward, is plugged with chock between described lining and the described cathode tube.
For the molybdenum tube is out of shape when the pressed metal powder, can make the cathode base of compression moulding be easy to the demoulding again, described lining is conical, the quantity of chock has two at least.
In order to prevent that chock moves in the pressing process, described upper bolster and die shoe are respectively equipped with corresponding internal and external screw thread, can screw mutually with fixing described chock.Described upper bolster outer wall both sides have the groove of symmetry, are beneficial to spanner itself and described die shoe are screwed,
The loosening metal dust that causes of cathode tube is unrestrained when preventing that upper bolster and die shoe from screwing, and described die shoe is affixed by pin and described lining.
For the cathode base that prevents to suppress does not plan a successor, described upward staking punch top is circular-arc.
In order to guarantee that described cathode tube is enclosed within on the described following staking punch smoothly, described staking punch integral body down is decussate texture, and its top external diameter is identical with described last staking punch external diameter; Be provided with the round platform of an along continuous straight runs projection in the middle, the external diameter of described round platform is greater than the internal diameter of described die shoe axially extending bore; Described staking punch lower outer diameter down is smaller or equal to the internal diameter of described die shoe axially extending bore.
Advantage of the present utility model is: the utility model compared with prior art owing to be cathode base and molybdenum tube to be connected as a single entity by punching press, thus do not exist because of welding the improper anticathode pollution that causes with the molybdenum tube, also thereby with low cost.The evidence of oxide of having avoided the acidifying of cathode base internal and external reasons simultaneously and having caused, guaranteed that cathode base possesses fresh that contacts with active material, helping emitting material plays a role effectively, be convenient to the electronics emission, more can only not stay residue such as copper because be under same mould, to suppress because of removing copper, so each negative electrode (even radian is arranged) all is identical, process repeatability and good stability.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 structural representation of the present utility model,
The finished cathode base structural representation of Fig. 2.
In the accompanying drawing: 1. go up staking punch, 2. upper bolster, 3. die shoe, 4. cushion block 5. descends staking punch, 6. lining, 7. chock, 8. molybdenum tube, 9. pin, 10. die shoe axially extending bore.
[specific embodiment]
Referring to Fig. 1,2, the diel of gun cathode matrix, be arranged at hydraulic press table top place, comprise upper die and lower die two parts, described patrix comprises staking punch 1 and upper bolster 2, and described counterdie comprises die shoe 3 and cushion block 4, have axially extending bore in the middle of the die shoe 3, be equipped with in this through hole upper end open and be used for down staking punch 5, cathode tube to be processed (molybdenum tube) 8 is sleeved on down staking punch 5 tops, and following staking punch 5 is with linings 6 outward; Be provided with chock 7 between lining 6 and cathode tube 8 outer walls.
For molybdenum tube 8 is out of shape when the pressed metal powder, can make the cathode base of compression moulding be easy to the demoulding again, lining 6 is conical, the quantity of chock 7 is three.
In order to prevent that chock 7 moves in the pressing process, upper bolster 2 and die shoe 3 are respectively equipped with corresponding internal and external screw thread, can screw mutually with fixing chock 7.Upper bolster 2 outer wall both sides have the groove of symmetry, are beneficial to spanner itself and die shoe 3 are screwed,
The cathode tube 8 loosening metal dusts that cause are unrestrained when preventing that upper bolster 2 and die shoe 3 from screwing, and die shoe 3 is affixed by pin 9 and lining 6.
For the cathode base that prevents to suppress does not plan a successor, last staking punch 1 upper surface is circular-arc.
In order to guarantee that molybdenum tube 8 can be enclosed within down on the staking punch 5 smoothly, following staking punch 5 integral body are decussate texture, and the external diameter on its top is identical with last staking punch 1 bottom external diameter; Be provided with the round platform of an along continuous straight runs projection in the middle, the external diameter of round platform is greater than the internal diameter of die shoe axially extending bore 10; Following staking punch 5 lower end external diameters are smaller or equal to the cylinder of die shoe axially extending bore 10 internal diameters.
Described cathode base diel can be set the concrete size that goes up staking punch 1, following staking punch 5, chock 7 and upper bolster 2 according to negative electrode molybdenum tube size, and remaining parts need not change.In order to guarantee hardness, described diel material adopts the stainless steel manufacturing and quenchs.
Below be to use the overall process of this diel processing cathode base:
Connect the hydraulic press power supply, adjust the pressure size as required; With an amount of metal dust of the accurate weighing of assay balance; Die shoe is placed on the cushion block; To descend staking punch 5 to put in the die shoe 3; Lining 6 is enclosed within down on the staking punch 5; Two chocks 7 are put in the lining 6; With tweezers molybdenum tube 8 is put into down on the staking punch 5; Again the 3rd chock 7 put in the lining 6 and and smoothed chock 7 with the assembling test point; Divide several metal dust is filled into molybdenum tube 8, use staking punch 1 preliminary compacted powder (must pin chock 7 this moment with hand, prevents 8 displacements of molybdenum tube) after every batch, clear up powder on chock 7 sidewalls, guarantee that it places in the molybdenum tube 8 with the assembling test point.Upper bolster 2 is enclosed within on the die shoe 3, screws up with a wrench; To go up staking punch 1 by the through hole on the upper bolster 2 and put in glass molybdenum tube 8, and stop is shifted in rotation onto reposefully; The primer fluid press is suppressed; With joystick the hydraulic press pressure head is contacted with last staking punch 1; The hydraulic press handle is pressed onto stop, and keeps (3～5) second; Steadily lift pressure head, disconnect hydraulic press.Staking punch 1 in the taking-up, the upper bolster 2 of outwarding winding; Take chock 7 apart and take out molybdenum tube 8.A cathode base compacting finishes.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (7)
1. gun cathode matrix diel, be arranged at hydraulic press table top place, comprise upper die and lower die two parts, it is characterized in that: described patrix comprises staking punch and upper bolster, described counterdie comprises die shoe and cushion block, described die shoe is middle to have axially extending bore, is equipped with in this through hole upper end open to be used for staking punch down, and cathode tube to be processed is sleeved on described staking punch top down; Described staking punch down is with lining outward, is plugged with chock between described lining and the described cathode tube.
2. according to the diel of the described gun cathode matrix of claim 1, it is characterized in that: described lining is for conical.
3. according to the diel of the described gun cathode matrix of claim 1, it is characterized in that: described upper bolster and die shoe are respectively equipped with corresponding internal and external screw thread, can screw mutually; Described upper bolster outer wall both sides have the groove of symmetry.
4. according to the diel of the described gun cathode matrix of claim 1, it is characterized in that: the quantity of described chock has two at least.
5. according to the diel of the described gun cathode matrix of claim 1, it is characterized in that: described die shoe is affixed by pin and described lining.
6. according to the diel of the described gun cathode matrix of claim 1, it is characterized in that: described upward staking punch top is circular-arc.
7. according to the diel of the described gun cathode matrix of claim 1, it is characterized in that: described following staking punch integral body is decussate texture, and its top external diameter is identical with described last staking punch external diameter; Its middle part is provided with the round platform of an along continuous straight runs projection, and the external diameter of described round platform is greater than the internal diameter of described die shoe axially extending bore; Described staking punch lower outer diameter down is smaller or equal to the internal diameter of described die shoe axially extending bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201921190U CN201693172U (en) | 2010-05-12 | 2010-05-12 | Electron gun cathode base stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201921190U CN201693172U (en) | 2010-05-12 | 2010-05-12 | Electron gun cathode base stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201693172U true CN201693172U (en) | 2011-01-05 |
Family
ID=43394416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201921190U Expired - Fee Related CN201693172U (en) | 2010-05-12 | 2010-05-12 | Electron gun cathode base stamping die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201693172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456523A (en) * | 2011-08-19 | 2012-05-16 | 中国计量科学研究院 | Preparation method of chromium hollow cathode tube |
| CN103331444A (en) * | 2013-07-05 | 2013-10-02 | 益阳市新纪元粉末冶金有限公司 | Compression forming mold for sintered metal product, application thereof and forming mold release method |
-
2010
- 2010-05-12 CN CN2010201921190U patent/CN201693172U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456523A (en) * | 2011-08-19 | 2012-05-16 | 中国计量科学研究院 | Preparation method of chromium hollow cathode tube |
| CN103331444A (en) * | 2013-07-05 | 2013-10-02 | 益阳市新纪元粉末冶金有限公司 | Compression forming mold for sintered metal product, application thereof and forming mold release method |
| CN103331444B (en) * | 2013-07-05 | 2015-09-30 | 益阳市新纪元粉末冶金有限公司 | Sintered metal product press-moulding die and application and shaping and demoulding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20150512 |
|
| EXPY | Termination of patent right or utility model |