CN104772607A - Group hole accuracy machining method of liquid engine injector plate - Google Patents
Group hole accuracy machining method of liquid engine injector plate Download PDFInfo
- Publication number
- CN104772607A CN104772607A CN201510192927.4A CN201510192927A CN104772607A CN 104772607 A CN104772607 A CN 104772607A CN 201510192927 A CN201510192927 A CN 201510192927A CN 104772607 A CN104772607 A CN 104772607A
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- CN
- China
- Prior art keywords
- ejector filler
- hole
- thickening plate
- filler dish
- group hole
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to a group hole accuracy machining method of a liquid engine injector plate; the method comprises the following steps: placing the injector plate on a platform, arranging a thickening plate on the group hole upper surface of the injector plate, adopting two pressing plates to connect the injector plate with the platform and then using another two pressing plates to press and adhere the thickening plate and the upper surface of the injector plate; enabling a rotation center of the injector plate to be coaxial with the rotation center of machine tool equipment; machining a plane on the thickening plate by milling via a milling cutter, machining a lead hole in the plane, and guiding a drill bit by the lead hole, so that no skewing is generated when a brick is drilled and the lead hole on the thickening plate is simultaneously taken as a rear guiding hole of the drill bit to machine the group holes. According to the method disclosed by the invention, the working strength is reduced, and the production efficiency and the machining precision are improved.
Description
Technical field
The present invention relates to the high accuracy processing of a kind of machine components space aperture, particularly relate to liquid engine ejector filler dish group hole precision processing method, be applicable to liquid engine ejector filler dish.
Background technology
Along with the development of Five Axis machine tool and client side are to the coherence request of product, need original common process progressively to be changed into numerical control device processing, then have corresponding operator not possess the ability of processing Φ less than 1 inclined hole.So the digital control processing solving liquid engine ejector filler dish group hole is extremely urgent.But ejector filler dish group hole adopts digital control processing beyond example before this.
Ejector filler dish product key position is 486 crossing group holes.Wherein 150, Φ 0.7+0.02 0 hole, 16, Φ 0.8+0.02 0 hole, 80, Φ 1+0.02 0 hole, 120, Φ 1.1+0.02 0 hole, 120, Φ 1.6+0.02 0 hole.Hole pairs Intersection is greater than 0.06mm person and is no more than and checks 50% of number, and Intersection is greater than 0.1 ~ 0.16mm person and is no more than and checks 10% of number, is greater than 0.16mm person for defective.
Ejector filler disk material is 1Cr18Ni9Ti(stainless steel) solution treatment state bar, with Fe, Cr stainless steel material for basic comprising element, pyroconductivity is low, work hardening is serious, cutting easily extends adhesion, causes in process and easily occurs following situation:
(1) cutting force born because of drill edge is excessive, produces tipping or breakage;
(2) a large amount of heat in metal cuttings that drilling produces are difficult to diffusion, make the temperature of apex point too high, and the hardness of cutter reduces, and impel wearing and tearing to accelerate, cutter life reduces;
(3) chip spooling is difficult to chip breaking discharge on drill bit.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, propose a kind of liquid engine ejector filler dish group hole precision processing method, solve the problem that impingement holes Intersection in prior art is overproof and center, hole precision is not up to standard.
Technical scheme of the present invention is as follows:
Ejector filler dish is positioned on platform, and ejector filler dish group hole upper surface arranges thickening plate, adopts two pressing plates to be connected with platform by ejector filler dish, then with another two pressing plates, thickening plate and ejector filler dish upper surface is compressed and fitted; Ensure that the centre of gyration of ejector filler dish is coaxial with machine tool pivot; Adopt milling cutter Milling Machining out-of-plane on thickening plate, process bullport in the plane, guide drill bit by bullport, can not produce skew when ensureing brick drilling, the bullport on thickening plate is simultaneously also as the rear pilot hole of drill bit thus processing group hole.
Advantageous effect of the present invention is as follows:
1, ejector filler dish group hole adopts digital control processing, can effectively operator be freed from onerous toil, and reduce the working strength of operator, enhance productivity, avoiding human factor affects ejector filler dish group hole quality.Shorten the Skill Development time of operator simultaneously.
2, cancel the complex tool equipment of group's hole machined, avoid the machining accuracy because of problems affect ejector filler dishes such as frock is aging, wearing and tearing.
3, procedure, machined parameters can solidify, and has reproducible value to the like products that material is 1Cr18Ni9Ti.
Detailed description of the invention
Embodiment
Ejector filler dish is positioned on small-sized platform, during in order to ensure that part is processed, machine tool can not the excess of stroke, two pressing plates are adopted to be connected with platform by ejector filler dish, ejector filler dish group hole upper surface arranges thickening plate, the thickening plate upper and lower surface depth of parallelism is not more than 0.03mm, with another two pressing plates, thickening plate and ejector filler dish upper surface is compressed and is fitted tightly.Before compressing, centering ejector filler dish group's hole circle center (this example is the part centre of gyration) is coaxial with machine tool pivot, and axiality is no more than 0.03mm.Then the plane vertical with hole is gone out by milling cutter Milling Machining on thickening plate, bullport is processed in the plane with centre drill, drill bit is guided by bullport, skew can not be produced when ensureing brick drilling, bullport on thickening plate is simultaneously also as the rear pilot hole of drill bit thus processing group hole, work in-process needs according to hole site change press plate position, requires first to be compressed and thrust will be evenly distributed on group two ends, hole circle center in not interference position by two pressing plates during change press plate position.Then remove and interfere pressing plate.
Main operational principle of the present invention is: the material of thickening plate is identical with ejector filler dish, when drill bit is transitioned into ejector filler dish by thickening plate, machining condition is identical, cutter can not produce stressed change, to enter cutter position uniformity better for enter cutter position and the thickening plate of piece surface, and the cutter position that enters on thickening plate is determined by centre drill.
The group hole of ejector filler dish adopts the five-shaft numerical control equipment of band B axle yaw, the centre of gyration of ejector filler dish will be no more than 0.03mm with the C axle pivot axiality of equipment, for more high-precision ejector filler dish, within cylinder axle degree can being adjusted to 0.01mm, ensure the precision of part when processing most outer shroud round.The thickness of thickening plate is less than the shock degree size 0.5mm in head-on collision hole, goes out Φ 2 left and right plane by milling cutter at thickening plate Milling Machining, then guides 1mm deep hole with centre drill processing.Employing drilling is processed, and once completes the processing in all group holes of part.By great many of experiments and practice, the present invention is to the machining accuracy that can ensure ejector filler dish group hole.Described each hole needs processing three times, and front twice working depth can not be greater than processing plate, and last working depth ensures the requirement of part product hole depth.
The above know-why being specific embodiments of the invention and using, any based on the equivalent transformation on technical solution of the present invention basis, all belong within protection scope of the present invention.
Claims (8)
1. liquid engine ejector filler dish group hole precision processing method, is characterized in that comprising the steps:
Ejector filler dish is positioned on platform, and ejector filler dish group hole upper surface arranges thickening plate, adopts two pressing plates to be connected with platform by ejector filler dish, then with another two pressing plates, thickening plate and ejector filler dish upper surface is compressed and fitted; Ensure that the centre of gyration of ejector filler dish is coaxial with machine tool pivot; Adopt milling cutter Milling Machining out-of-plane on thickening plate, process bullport in the plane, guide drill bit by bullport, can not produce skew when ensureing brick drilling, the bullport on thickening plate is simultaneously also as the rear pilot hole of drill bit thus processing group hole.
2. liquid engine ejector filler dish group hole according to claim 1 precision processing method, it is characterized in that, described thickening plate and ejector filler dish are same material.
3. liquid engine ejector filler dish group hole according to claim 1 precision processing method, it is characterized in that the described thickening plate upper and lower surface depth of parallelism is 0-0.03mm, thickening plate surface should fit tightly with product surface.
4. liquid engine ejector filler dish group hole according to claim 1 precision processing method, it is characterized in that described each hole needs processing three times, front twice working depth can not be greater than thickening plate, and last working depth ensures the requirement of part product hole depth.
5. liquid engine ejector filler dish group hole according to claim 1 precision processing method, is characterized in that described machine tool is the five-shaft numerical control equipment of band B axle yaw; The centre of gyration of ejector filler dish and the C axle pivot axiality of five-shaft numerical control equipment are no more than 0.03mm.
6. liquid engine ejector filler dish group hole according to claim 1 precision processing method, is characterized in that the thickness of described thickening plate is less than the shock degree size 0.5mm in head-on collision hole.
7. liquid engine ejector filler dish group hole according to claim 1 precision processing method, to it is characterized in that by milling cutter in the plane that thickening plate Milling Machining goes out being Φ 2mm, the bullport degree of depth is 1mm, and plane is vertical with bullport.
8. liquid engine ejector filler dish group hole according to claim 1 precision processing method, is characterized in that two described pressing plates are not interfered compacted position and are evenly distributed on group two ends, hole circle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192927.4A CN104772607A (en) | 2015-04-22 | 2015-04-22 | Group hole accuracy machining method of liquid engine injector plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192927.4A CN104772607A (en) | 2015-04-22 | 2015-04-22 | Group hole accuracy machining method of liquid engine injector plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104772607A true CN104772607A (en) | 2015-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510192927.4A Pending CN104772607A (en) | 2015-04-22 | 2015-04-22 | Group hole accuracy machining method of liquid engine injector plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN104772607A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658430A (en) * | 2020-12-24 | 2021-04-16 | 上海空间推进研究所 | Anti-rotation and anti-adhesion injector diffusion brazing pressurizing device |
| CN113523735A (en) * | 2021-09-01 | 2021-10-22 | 西安远航真空钎焊技术有限公司 | Preparation method of injector |
| CN116931507A (en) * | 2023-09-18 | 2023-10-24 | 成都飞机工业（集团）有限责任公司 | Group hole perforation control method and device, storage medium and electronic equipment |
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| CN103537724A (en) * | 2013-09-18 | 2014-01-29 | 广州杰赛科技股份有限公司 | Method for perforating multilayer printed board containing PTFE |
| CN103909283A (en) * | 2014-04-01 | 2014-07-09 | 大连理工大学 | Coupling hole precision machining method |
| CN104227062A (en) * | 2014-09-17 | 2014-12-24 | 东方电气(广州)重型机器有限公司 | Method for machining plurality of reverse stepped holes in plane |
| CN104259503A (en) * | 2014-08-26 | 2015-01-07 | 中国直升机设计研究所 | Large cellular board machining method |
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2015
- 2015-04-22 CN CN201510192927.4A patent/CN104772607A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004093174A1 (en) * | 2003-04-10 | 2004-10-28 | Phoeton Corp. | Laser processing apparatus and laser processing method |
| US20050147477A1 (en) * | 2004-01-06 | 2005-07-07 | The Boeing Company | Laser-guided coordination hole drilling |
| CN101932199A (en) * | 2009-06-23 | 2010-12-29 | 日立比亚机械股份有限公司 | The perforate processing method of printed base plate |
| CN103537724A (en) * | 2013-09-18 | 2014-01-29 | 广州杰赛科技股份有限公司 | Method for perforating multilayer printed board containing PTFE |
| CN103909283A (en) * | 2014-04-01 | 2014-07-09 | 大连理工大学 | Coupling hole precision machining method |
| CN104259503A (en) * | 2014-08-26 | 2015-01-07 | 中国直升机设计研究所 | Large cellular board machining method |
| CN104227062A (en) * | 2014-09-17 | 2014-12-24 | 东方电气(广州)重型机器有限公司 | Method for machining plurality of reverse stepped holes in plane |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658430A (en) * | 2020-12-24 | 2021-04-16 | 上海空间推进研究所 | Anti-rotation and anti-adhesion injector diffusion brazing pressurizing device |
| CN113523735A (en) * | 2021-09-01 | 2021-10-22 | 西安远航真空钎焊技术有限公司 | Preparation method of injector |
| CN113523735B (en) * | 2021-09-01 | 2022-07-22 | 西安远航真空钎焊技术有限公司 | Preparation method of injector |
| CN116931507A (en) * | 2023-09-18 | 2023-10-24 | 成都飞机工业（集团）有限责任公司 | Group hole perforation control method and device, storage medium and electronic equipment |
| CN116931507B (en) * | 2023-09-18 | 2024-01-12 | 成都飞机工业（集团）有限责任公司 | Group hole perforation control method and device, storage medium and electronic equipment |
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Application publication date: 20150715 |
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