CN2175666Y - Lapping disc for eccentric circle channel - Google Patents
Lapping disc for eccentric circle channel Download PDFInfo
- Publication number
- CN2175666Y CN2175666Y CN93240159U CN93240159U CN2175666Y CN 2175666 Y CN2175666 Y CN 2175666Y CN 93240159 U CN93240159 U CN 93240159U CN 93240159 U CN93240159 U CN 93240159U CN 2175666 Y CN2175666 Y CN 2175666Y
- Authority
- CN
- China
- Prior art keywords
- ball
- abrasive disk
- grinding
- grinded
- utility
- 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
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model relates to a grinding disc for eccentric circle slots, belonging to a ball grinding tool matched with a ball grinding machine to use. An offset is arranged between the circle center of the slot on a rotary grinding disc or a fixed grinding disc and the rotary center of the rotary grinding disc, and the size is selected between 3 mm and 50 mm according to the diameter and the material of the grinded ball. Each point on the grinded ball surface has approximately equal grinding chance. The grinded ball has high precision. The utility model can be suitable for grinding various balls, and is especially suitable for the grinding process of the rolling balls of bearings.
Description
The utility model belongs to the attrition process instrument.
Abrasive disk is and the matching used ball machining tool of ball lapping machine, it by mutual opposed rotation abrasive disk and fixedly abrasive disk form, have groove on the dish therein, ball chuck is held in the groove, abrasive disk is rotated in rotation, and ball is carried out attrition process.The groove center of circle on the abrasive disk, concentric with the centre of gyration that rotates abrasive disk, in the course of work, the grinder that is ground each point on the sphere can differ greatly, and can only lean on as far as possible with the arc and the systemic circulation lapping mode that are ground the abrasive disk trench cross section that sphere matches and remedy this shortcoming.But the ball precision of grinding out is lower, generally is difficult to reach three grades of ball precision levels that GB GB308-84 requires.
The purpose of this utility model is ground ball characteristics of motion under constraints according to quilt, and a kind of new construction abrasive disk of off-centre operation groove is provided, and makes the grinder that is ground each point on the sphere can be similar to equalization, thereby improves the accuracy class of being ground ball.
Main points of the present utility model are to rotate abrasive disk or fixedly between the centre of gyration of the groove center of circle on the abrasive disk and rotation abrasive disk an offset is arranged.
Fig. 1 is for rotating abrasive disk or fixing abrasive disk working face groove arranged off-centre schematic diagram.
The 1-groove center of circle among the figure, 2-groove center line, 3-rotates the abrasive disk centre of gyration, and 4-rotates the abrasive disk inner edge, and 5-rotates the abrasive disk outer rim.
The contrast accompanying drawing is further described the utility model below.
As seen from the figure, rotate abrasive disk or fixedly between the abrasive disk groove center of circle 1 and the rotation abrasive disk centre of gyration 3 eccentric amount e is arranged.The size of eccentric amount e is selected in 3～50mm scope according to diameter that is ground ball and material.
Because the existence of eccentric amount e is compared with traditional ball abrasive disk, ground ball in process of lapping, increased additional rotatablely moving, and the angular speed that this rotatablely moves changes in time according to certain rules, and the grinding track that is ground on the sphere is approximate evenly to distribute thereby make.As long as the groove eccentric amount e is selected rationally, adopt the utility model off-centre operation groove abrasive disk, the ball that grinds out is easy to reach three grades of ball precision levels of GB GB308-84 regulation.
For example the inventor uses the abrasive disk of eccentric amount e as 10mm, grinds the ZrO of φ 19.05
2Ball, spherical volume difference only is 0.06 μ m, has reached (spherical deviation is no more than 0.08 μ m) three grades of ball levels of GB GB308-84 regulation.
The utility model is scientific and reasonable for structure, has improved ball machining accuracy and efficient, can be used for the grinding of various balls, is specially adapted to the attrition process of bearing ball.
Claims (1)
1, off-centre operation groove abrasive disk, by rotate abrasive disk and fixedly abrasive disk form, rotating abrasive disk or fixedly having groove on the abrasive disk, it is characterized in that, rotate abrasive disk or fixedly between the groove center of circle on the abrasive disk and the rotation abrasive disk centre of gyration offset is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93240159U CN2175666Y (en) | 1993-09-29 | 1993-09-29 | Lapping disc for eccentric circle channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93240159U CN2175666Y (en) | 1993-09-29 | 1993-09-29 | Lapping disc for eccentric circle channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2175666Y true CN2175666Y (en) | 1994-08-31 |
Family
ID=33814486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93240159U Expired - Fee Related CN2175666Y (en) | 1993-09-29 | 1993-09-29 | Lapping disc for eccentric circle channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2175666Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433842A (en) * | 2013-09-23 | 2013-12-11 | 南通龙源电站阀门有限公司 | Eccentric grinding tool of valve body |
| CN103991018A (en) * | 2014-05-21 | 2014-08-20 | 浙江工业大学 | High-accuracy sphere machining device based on eccentric variable-curvature V-shaped grooved disc |
| CN103991025A (en) * | 2014-05-21 | 2014-08-20 | 浙江工业大学 | High-accuracy ball body machining method through eccentric type curvature-variable groove |
| CN104493689A (en) * | 2014-12-16 | 2015-04-08 | 天津大学 | Double-disc straight-groove grinding disc for surfaces of cylindrical parts |
-
1993
- 1993-09-29 CN CN93240159U patent/CN2175666Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433842A (en) * | 2013-09-23 | 2013-12-11 | 南通龙源电站阀门有限公司 | Eccentric grinding tool of valve body |
| CN103991018A (en) * | 2014-05-21 | 2014-08-20 | 浙江工业大学 | High-accuracy sphere machining device based on eccentric variable-curvature V-shaped grooved disc |
| CN103991025A (en) * | 2014-05-21 | 2014-08-20 | 浙江工业大学 | High-accuracy ball body machining method through eccentric type curvature-variable groove |
| CN104493689A (en) * | 2014-12-16 | 2015-04-08 | 天津大学 | Double-disc straight-groove grinding disc for surfaces of cylindrical parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |