CN102371518B - A kind of method of grinding spherical on engine lathe and device - Google Patents
A kind of method of grinding spherical on engine lathe and device Download PDFInfo
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- CN102371518B CN102371518B CN201010258438.1A CN201010258438A CN102371518B CN 102371518 B CN102371518 B CN 102371518B CN 201010258438 A CN201010258438 A CN 201010258438A CN 102371518 B CN102371518 B CN 102371518B
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Abstract
The present invention relates to a kind of method and device of grinding spherical on engine lathe, it is characterized in that, intersect according to two circles the principle forming sphere, adopt radial grinding head device to realize, its operating procedure is as follows: 1), on lathe saddle, install radial bistrique, workpiece is contained on chuck; 2), speed of grinding wheel V
sand=18 meter per seconds, the speed V of workpiece
work=6 ~ 8 ms/min, grinding depth t=5 ~ 10 μm/changing of workpieces 2 ~ 4 weeks; 3), the centre of gyration of emery wheel center and workpiece is contour; 4), model inspection.On described radial bistrique, motor is connected with belt pulley one, base successively, and belt pulley two is connected with base, emery wheel successively, and belt pulley one is connected by belt with belt pulley two.Compared with prior art, the invention has the beneficial effects as follows: the principle formed according to sphere, grinding can go out the spherical surface body of desirable different size on engine lathe, applied widely, solves under not having special spheric grinding machine situation, a grinding difficult problem for sphere.
Description
Technical field
The present invention relates to field of machining, particularly relate to a kind of method and device of grinding spherical on engine lathe.
Background technology
During current plant equipment manufactures, need the workpiece of grinding many with spherical raceway, as Φ on steelwork converter 900 bearing and three fulcrum opposite opened ball pivot seats, convex-concave ball ring etc. in erecting by overhang, generally all process with special arc raceway spheric grinding machine, particularly Φ 460 opposite opened ball pivot in converter three fulcrum, determine the stationarity that body of heater rotates, spare part design accuracy is high, sphericity error ± 0.02mm, in after assembling, spherical outside surface contact area wants >=75%, material GCr15SiMn, hardness HRc50 ~ 55 after quenching, surface roughness Ra 0.8, all by external import in the past, domestic Bearing Factory can not process such split box, especially do not having in special spheric grinding machine situation, need the grinding difficult problem solving this series products on engine lathe.
Summary of the invention
The object of this invention is to provide a kind of method and device of grinding spherical on engine lathe, when without special spheric grinding machine, solve a difficult problem for spherical grinding.
For achieving the above object, the present invention is achieved through the following technical solutions:
A method for grinding spherical on engine lathe, intersect according to two circles the principle forming sphere, adopt radial grinding head device to realize, its operating procedure is described below:
1), radial bistrique is installed on common lathe saddle, clamping workpiece is on engine lathe chuck, on radial bistrique, the central axis of emery wheel is crossing with the vertical center line of sphere and become angle α, 12 °≤α≤25 ° in the rotation centerline of workpiece sphere;
2), grinding parameter: the speed V of emery wheel
sand=18 meter per seconds, the speed V of workpiece
work=6 ~ 8 ms/min, grinding depth t=5 ~ 10 μm/changing of workpieces 2 ~ 4 weeks, inject cooling liquid;
3), to ensure that the centre of gyration height of the center of emery wheel and workpiece is contour;
4), with model inspection sphere radian, until grinding completes.
Described radial bistrique, comprises base, motor, belt pulley, emery wheel, and motor is connected with belt pulley one, base successively, and belt pulley two is connected with base, emery wheel successively, and belt pulley one is connected by belt with belt pulley two.Described emery wheel is cup emery wheel or flaring cup wheel, and its diameter gets wide 1.1 ~ 1.4 times of workpiece sphere, and namely d=1.1 ~ 1.4H, H are that sphere is wide.
The compositions in weight percentage of described cooling fluid is configured to:
Water-emulsifiable cutting oil 8 ~ 10%;
Sodium carbonate 0.5 ~ 1.5%;
Triethanol ammonium 2 ~ 3%;
All the other are water.
Compared with prior art, the invention has the beneficial effects as follows: the principle formed according to sphere, grinding the spherical surface body of desirable different size can be gone out on engine lathe, can be Internal Spherical Surface also can be spherical outside surface, applied widely, solve under there is no special spheric grinding machine situation, a grinding difficult problem for sphere.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation;
Fig. 2 is the schematic side view of Fig. 1;
Fig. 3 is radial grinding wheel head structure schematic diagram;
Fig. 4 is when wheel grinding point is higher than the mill line shape of work centre line;
Fig. 5 is when wheel grinding point is lower than the mill line shape of work centre line.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
See Fig. 1, Fig. 2, the embodiment of the method structural representation of a kind of grinding spherical on engine lathe of the present invention, illustrate for the grinding of Internal Spherical Surface, intersect according to two circles the principle forming sphere, with engine lathe, special radial bistrique is installed on knife rest, with the cup emery wheel of Φ 250mm, during grinding, radial bistrique does radial grinding, and namely grind desirable sphere, its operating procedure is described below:
1), radial bistrique 8 is installed on common lathe saddle 7, workpiece 9 clamping is on engine lathe chuck 10, on radial bistrique, the rotation centerline of emery wheel 3 is crossing with the vertical center line of sphere and become angle α perpendicular to the rotation centerline of workpiece 9 sphere, 12 °≤α≤25 °, angle is larger, and spheric curvature is larger;
2) grinding parameter: the speed V of emery wheel
sand=18 meter per seconds, the speed V of workpiece
work=6 ~ 8 ms/min, grinding depth t=5 ~ 10 μm/changing of workpieces 2 ~ 4 weeks, inject cooling liquid, during fine grinding, emery wheel must stability of rotation, and workpiece rotational frequency will reduce one-level;
The compositions in weight percentage of described cooling fluid is configured to:
Water-emulsifiable cutting oil 8 ~ 10%
Sodium carbonate 0.5 ~ 1.5%
Triethanol ammonium 2 ~ 3%
All the other are water.
3) to ensure that the centre of gyration height of the center of emery wheel 3 and workpiece 9 is contour;
4) with model inspection sphere radian, until grinding completes.
See Fig. 3, described radial bistrique, comprise base 1, motor 2, belt pulley, emery wheel 3, motor 2 is connected with belt pulley 1, base 1 successively, and belt pulley 25 is connected with base 1, emery wheel 3 successively, and belt pulley 1 is connected by belt 6 with belt pulley 25.Described emery wheel 3 is cup emery wheel or flaring cup wheel, and its diameter gets the wide 1.1-1.4 of workpiece sphere doubly, and namely d=1.1 ~ 1.4H, H are that sphere is wide, and material is white fused alumina, granularity 46#, hardness R
2.
See Fig. 4, Fig. 5, when there is difference in height at the center of emery wheel and the centre of gyration of workpiece, the sphere ground just produces certain error, and fineness is low, and forms unique mill line, can judge that whether emery wheel position is suitable by mill line.No matter the center of emery wheel is the rotation centerline higher or lower than workpiece, and the sphere ground has mill line.
Claims (1)
1. the method for grinding spherical on engine lathe, is characterized in that, intersect according to two circles the principles forming spheres, adopt radial grinding head device to realize, its operating procedure is described below:
1) on common lathe saddle, install radial bistrique, clamping workpiece is on engine lathe chuck, and on radial bistrique, the central axis of emery wheel is crossing with the vertical center line of sphere and become angle α, 12 °≤α≤25 ° in the rotation centerline of workpiece sphere;
2) grinding parameter: the speed V of emery wheel
sand=18 meter per seconds, the speed V of workpiece
work=6 ~ 8 ms/min, grinding depth t=5 ~ 10 μm/changing of workpieces 2 ~ 4 weeks, inject cooling liquid; The compositions in weight percentage of described cooling fluid is configured to: water-emulsifiable cutting oil 8 ~ 10%; Sodium carbonate 0.5 ~ 1.5%; Triethanol ammonium 2 ~ 3%; All the other are water;
3) to ensure that the centre of gyration height of the center of emery wheel and workpiece is contour;
4) with model inspection sphere radian, until grinding completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010258438.1A CN102371518B (en) | 2010-08-20 | 2010-08-20 | A kind of method of grinding spherical on engine lathe and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010258438.1A CN102371518B (en) | 2010-08-20 | 2010-08-20 | A kind of method of grinding spherical on engine lathe and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371518A CN102371518A (en) | 2012-03-14 |
| CN102371518B true CN102371518B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010258438.1A Expired - Fee Related CN102371518B (en) | 2010-08-20 | 2010-08-20 | A kind of method of grinding spherical on engine lathe and device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158993A (en) * | 2018-11-05 | 2019-01-08 | 福建省飞阳光电股份有限公司 | A kind of spherical groove sander and polishing process |
| CN113182940B (en) * | 2021-03-31 | 2022-07-08 | 郑州大学 | Spherical inner surface oblique generating method parameter selection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU884974A1 (en) * | 1980-01-08 | 1981-11-30 | Минский Филиал Всесоюзного Научно-Исследовательского Конструкторско-Технологического Института Подшипниковой Промышленности | Apparatus for finishing spherical surfaces |
| RO109527B1 (en) * | 1990-03-29 | 1995-03-30 | Mecanica Nicolina | Spherical, interior grinding process and angle broach for the application process thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3567076B2 (en) * | 1998-02-16 | 2004-09-15 | トーヨーエイテック株式会社 | Grinding method for the inner spherical surface of the work |
-
2010
- 2010-08-20 CN CN201010258438.1A patent/CN102371518B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU884974A1 (en) * | 1980-01-08 | 1981-11-30 | Минский Филиал Всесоюзного Научно-Исследовательского Конструкторско-Технологического Института Подшипниковой Промышленности | Apparatus for finishing spherical surfaces |
| RO109527B1 (en) * | 1990-03-29 | 1995-03-30 | Mecanica Nicolina | Spherical, interior grinding process and angle broach for the application process thereof |
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| CN102371518A (en) | 2012-03-14 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xiaoping Inventor after: Li Xizeng Inventor after: Tian Qiang Inventor after: Gao Yang Inventor before: Wang Xiaoping Inventor before: Li Xizeng Inventor before: Tian Qiang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG XIAOPING LI XIZENG TIAN QIANG TO: WANG XIAOPING LI XIZENG TIAN QIANG GAO YANG |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20190820 |