CN103753140A - Machining method for high-precision hemispherical part with hole - Google Patents
Machining method for high-precision hemispherical part with hole Download PDFInfo
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- CN103753140A CN103753140A CN201310744646.6A CN201310744646A CN103753140A CN 103753140 A CN103753140 A CN 103753140A CN 201310744646 A CN201310744646 A CN 201310744646A CN 103753140 A CN103753140 A CN 103753140A
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- steel ball
- dome
- holes
- high accuracy
- servicing unit
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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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Abstract
A machining method for a high-precision hemispherical part with a hole relates to the technical field of bearings and comprises the steps of ball machining, hole machining (2) and linear cutting. The part is machined to be a steel ball (3) fixed through an auxiliary device (4), the hole is formed in the steel ball from the surface to the middle, and the surplus portion of the steel ball is cut through linear cutting to obtain the high-precision hemispherical part with the hole. The method reduces production cost, greatly improves machining efficiency and effectively improves the precision of the hemispherical part with the hole.
Description
[technical field]
The present invention relates to mechanical manufacturing field, specifically the present invention relates to the processing method of a kind of high accuracy dome-type part with holes.
[background technology]
Known, gyro machine is widely used in space flight, aviation, navigation device flight attitude and heading control loop, its precision directly has influence on the precision of posture control system, and bearing is the core component of gyro machine, the accuracy of manufacture of bearing and assembly precision directly have influence on precision, life-span and the reliability of gyro machine.Along with the raising of posture control system to bearing accuracy requirement, the application of gas dynamic pressure formula gyro machine bearing is more and more extensive, dome-type aero dynamic bearing is exactly one wherein, for meeting bearing capacity and the rigidity of gyro machine bearing, dome-type aero dynamic bearing air film gap is only several microns, therefore require spherical face roughness and surface of sphere to be submicron order, sphere precision diameter affects bearing capacity and the rigidity of dome-type aero dynamic bearing, and then affects the performance of gyro machine; For many years, the conventional fabrication processes of high accuracy hemisphere face part with holes is: car moulding → grinding hole → honing sphere, but because sphere ratio of precision is higher, when honing processing sphere, must drop into special spherical honing machine, but spherical honing machine equipment is comparatively expensive, and production technology is more complicated also, and working (machining) efficiency is low.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses the processing method of a kind of high accuracy dome-type part with holes, described method is by being processed as part steel ball 3, utilize servicing unit 4 stationary balls 3, the processing of the surface of steel ball 3 to middle part is portalled to 2, with line cutting, with holes 2 steel ball is cut away to redundance again, obtain high accuracy dome-type part with holes; The present invention effectively reduces production cost, and has greatly improved working (machining) efficiency.
For achieving the above object, the present invention adopts following technical scheme:
A processing method for high accuracy dome-type part with holes, comprises processing ball, machining hole and line cutting, and its concrete operation step is as follows:
(1) processing steel ball
First ready part is ground and becomes steel ball;
(2) machining hole
Connect previous step, the steel ball that previous step is obtained is fixed in the bellmouth at servicing unit middle part, utilizes electric spark to portal in the processing of surface to the middle part of steel ball;
(3) line cutting
Connect previous step, what previous step was obtained is cut unnecessary land portions is removed by line with porose steel ball, reaches the size of designing requirement, obtains high accuracy dome-type part with holes.
The processing method of described high accuracy dome-type part with holes, in step is fixed on steel ball in the bellmouth at servicing unit middle part, the steel ball surface interference fit of described bellmouth and steel ball, and described fixing method is hot charging interference method.
The processing method of described high accuracy dome-type part with holes, described hot charging interference method be by servicing unit heating-up temperature to 80-120 ℃, the heat time is 20-90 minute, make servicing unit produce thermal expansion, thereby stationary balls.
Owing to having adopted technique scheme, the present invention has following superiority:
The processing method of high accuracy of the present invention dome-type part with holes, described method is by being processed as part steel ball 3, utilize servicing unit 4 stationary balls 3, the processing of the surface of steel ball 3 to middle part is portalled to 2, with line cutting, with holes 2 steel ball is cut away to redundance again, obtain high accuracy dome-type part with holes; The present invention has not only reduced production cost, and has greatly improved working (machining) efficiency, effectively raises the precision of dome-type part with holes.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of servicing unit 4 stationary balls 3 of the present invention;
In the drawings: 1, steel ball sphere; 2, hole; 3, steel ball; 4, servicing unit; 5, bellmouth.
[specific embodiment]
By the following examples, can explain in more detail the present invention, the present invention is not limited to the following examples;
The processing method of the kind high accuracy dome-type part with holes described in 1 by reference to the accompanying drawings, comprises processing ball, machining hole, line cutting processing hemisphere, and its concrete operation step is as follows:
(1) processing steel ball 3
First ready part is ground and becomes steel ball 3;
(2) machining hole 2
Connect previous step, the steel ball 3 that previous step is obtained is fixed in the bellmouth 5 at servicing unit 4 middle parts, utilizes electric spark to portal 2 in the processing of surface to the middle part of steel ball 3; Described fixing method is hot charging interference method; Described hot charging interference method be by servicing unit 4 heating-up temperatures to 80-120 ℃, the heat time is 20-90 minute, makes servicing unit 4 produce thermal expansion, steel ball surface 1 interference fit of described bellmouth 5 and steel ball 3, thereby stationary balls 3;
(3) line cutting
Connect previous step, the steel ball 3 with porose 2 that previous step is obtained is cut unnecessary land portions is removed by line, reaches the size of designing requirement, obtains high accuracy dome-type part with holes.
Implement the processing method of of the present invention kind of high accuracy dome-type part with holes, by part being ground out to steel ball 3, utilize the method for hot charging interference to be fixed in the bellmouth 5 at servicing unit 4 middle parts steel ball 3, by servicing unit 4 is heated to 80-120 ℃, heat time is 20-90 minute, make servicing unit 4 produce thermal expansion, steel ball surface 1 interference fit of described bellmouth 5 and steel ball 3, thereby stationary balls 3, utilize electric spark to portal 2 in the processing of surface to the middle part of steel ball 3, by adopting the method for hot charging interference, not only can fix the surface of steel ball 3, when electric spark, can protect the surface of steel ball 3, steel ball with porose 23 is cut unnecessary land portions is removed by line, reach the size of designing requirement, obtain high accuracy dome-type part with holes, the present invention has reduced production cost, and has greatly improved working (machining) efficiency, effectively raises the precision of dome-type part with holes.
Part not in the detailed description of the invention is prior art.
The embodiment selecting in this article for open goal of the invention of the present invention, currently thinks suitablely, still, will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and invention scope.The all changes of embodiment in scope and improvement.
Claims (3)
1. a processing method for high accuracy dome-type part with holes, comprises processing ball, machining hole (2) and line cutting, it is characterized in that: its concrete operation step is as follows:
(1) processing steel ball (3)
First ready part is ground and becomes steel ball (3);
(2) machining hole (2)
Connect previous step, the steel ball (3) that previous step is obtained is fixed in the bellmouth (5) at servicing unit (4) middle part, utilizes electric spark to process at surface to the middle part of steel ball (3) portal (2);
(3) line cutting
Connect previous step, the steel ball with porose (2) (3) that previous step is obtained is cut unnecessary land portions is removed by line, reaches the size of designing requirement, obtains high accuracy dome-type part with holes.
2. the processing method of high accuracy according to claim 1 dome-type part with holes, it is characterized in that: in step 2, steel ball (3) is fixed in the bellmouth (5) at servicing unit (4) middle part, steel ball surface (1) interference fit of described bellmouth (5) and steel ball (3), described fixing method is hot charging interference method.
3. the processing method of high accuracy according to claim 2 dome-type part with holes, it is characterized in that: described hot charging interference method is to 80-120 ℃ by servicing unit (4) heating-up temperature, heat time is 20-90 minute, make servicing unit (4) produce thermal expansion, thus stationary balls (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744646.6A CN103753140B (en) | 2013-12-31 | 2013-12-31 | Machining method for high-precision hemispherical part with hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744646.6A CN103753140B (en) | 2013-12-31 | 2013-12-31 | Machining method for high-precision hemispherical part with hole |
Publications (2)
| Publication Number | Publication Date |
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| CN103753140A true CN103753140A (en) | 2014-04-30 |
| CN103753140B CN103753140B (en) | 2017-02-01 |
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| CN201310744646.6A Active CN103753140B (en) | 2013-12-31 | 2013-12-31 | Machining method for high-precision hemispherical part with hole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084655A (en) * | 2014-06-26 | 2014-10-08 | 南京航空航天大学 | Machining method of hard alloy bearing hemisphere |
| CN107790968A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of processing method of aero-engine clamshell type ball bearing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3261767B2 (en) * | 1992-10-12 | 2002-03-04 | オイレス工業株式会社 | Spherical band-shaped seal body and method for producing the same |
| US6899599B1 (en) * | 2004-05-25 | 2005-05-31 | Chiang Hsiang-Hui | Manufacturing process to make a valve ball |
| CN1916422A (en) * | 2005-08-18 | 2007-02-21 | 乐金电子(天津)电器有限公司 | Fixed construction between engine body and engine shell of compressor, and fixing method |
| CN101169157B (en) * | 2007-11-14 | 2010-08-18 | 辅永根 | Seamless spherical sliding composite bearing and its production method |
| CN102032359B (en) * | 2011-01-25 | 2012-04-18 | 张轩 | Valve core of ball valve and processing method thereof |
| CN103029193A (en) * | 2011-10-09 | 2013-04-10 | 烟台金王礼品有限公司 | Ball handle manufacturing process |
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2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084655A (en) * | 2014-06-26 | 2014-10-08 | 南京航空航天大学 | Machining method of hard alloy bearing hemisphere |
| CN107790968A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of processing method of aero-engine clamshell type ball bearing |
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| CN103753140B (en) | 2017-02-01 |
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Effective date of registration: 20180511 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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