CN201833241U - Rolling bearing support for centerless grinding - Google Patents
Rolling bearing support for centerless grinding Download PDFInfo
- Publication number
- CN201833241U CN201833241U CN2010205920695U CN201020592069U CN201833241U CN 201833241 U CN201833241 U CN 201833241U CN 2010205920695 U CN2010205920695 U CN 2010205920695U CN 201020592069 U CN201020592069 U CN 201020592069U CN 201833241 U CN201833241 U CN 201833241U
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- workpiece
- rolling bearing
- support
- annular workpieces
- grinding
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Abstract
The utility model relates to a rolling bearing support for centerless grinding, which supports the excircle surface of an annular workpiece and is used for radial positioning when the annular workpiece is subjected to grinding process. The rolling bearing support is characterized in that a radial positioning support when the annular workpiece is subjected to the grinding process adopts two rolling bearings. The rolling bearings support the excircle surface of an annular part and realize the radiation positioning when the annular workpiece is subjected to the grinding process. The rolling bearing support is simple in structure. Sliding friction between the surface of the support and the excircle surface of the workpiece is changed to rolling friction, therefore, friction force between the surface of the support and the excircle surface of the workpiece is greatly reduced, so that the rolling bearing support effectively solves the problems that the sliding support leads the excircle surface of the workpiece to be terry by pulling, to generate friction heat and to be abraded.
Description
Technical field
The utility model relates to a kind of supporting structure, particularly disclosing a kind of centerless grinding supports with rolling bearing, adopt roller bearings at the outer round surface of workpiece as positioning support, be applied to the centerless grinding mode and process annular workpieces, particularly the radial location of bearing ring and so on annular workpieces.
Background technology
Machinery manufacturing industry, particularly bearing manufacturing generally adopt the processing mode of centerless grinding when the grinding annular workpieces.Centerless grinding adopts centerless fixture to hold annular workpieces, sees accompanying drawing 1.An end face of annular workpieces 1 contacts with driving-disc 2.Thereby make driving-disc produce magnetic force absorption annular workpieces by solenoid, or apply axial compressive force, thereby realize the axial location of annular workpieces at another end face of annular workpieces.And radial location is to realize by two outer round surface that are mutually the supporting contact annular workpieces of certain angle.The operation principle of centerless fixture is to adjust the center of circle O of workpiece
2, make it to depart from main shaft center of circle O
1, produce a small distance between two centers of circle, be called eccentric amount e.When main axis rotation drove the driving-disc rotation of centerless fixture, driving-disc drove the workpiece rotation by frictional force.Because the existence of eccentric amount e, make workpiece produce the friction component F shown in the accompanying drawing 1, and the adjustment by eccentric amount e size, orientation, the friction component F that workpiece is produced points between two supportings 3, and the supporting 3 of centerless fixture at this moment is supported in the workpiece outer surface, makes the workpiece stable rotation.
The bearing-surface of centerless grinding directly contacts with the annular workpieces outer round surface, sees accompanying drawing 2.Annular workpieces 1 supports 3 and then maintains static along with the driving-disc rotation, has produced sliding friction between the two, has produced following insoluble problem:
If the bearing-surface circular arc of 1 supporting and the circular arc on excircle of workpiece surface do not match, it is improper perhaps to add supporting adjustment in man-hour at workpiece, can make bearing-surface not exclusively contact the contact-making surface discontinuity equalization with the workpiece external diameter surface.When the higher metal of some hardness was used in supporting, metal support will the plucking surface of the work, causes workpiece to be scrapped.In order to address these problems, generally between supporting and false workpiece (workpiece that appearance and size is identical with actual processing work), add abrasive pastes,, bearing-surface is all contacted with surface of the work through grinding for a long time, behind the contact-making surface stress equalization, reprocess normal workpiece.This method is very time-consuming, has a strong impact on working (machining) efficiency.
2, when the material of supporting adopts the higher metal of some hardness, if the deadweight of workpiece is bigger, perhaps eccentric amount e is adjusted bigger than normally, can produce very big friction component F, causes producing between workpiece and the bearing-surface very big frictional heat.After the surface of the work of high temperature touches grinding coolant, can crack, cause workpiece to be scrapped.
When if the materials of 3 supportings adopt the lower material of some hardness, though solved above-mentioned two problems to a certain extent, but because material is not wear-resisting, along with wear extent is increasing, cause eccentric amount e to change, make the rotation of workpiece radial direction unstable, influence crudy, adjustment supporting that must be frequent influences working (machining) efficiency.
Summary of the invention
The purpose of this utility model is to address the deficiencies of the prior art, and discloses a kind of centerless grinding and supports with rolling bearing, at centerless grinding processing annular workpieces, particularly during the bearing ring workpiece, has reduced the frictional force between supporting and the surface of the work.
The utility model is achieved in that a kind of centerless grinding supports with rolling bearing, be supported on the outer round surface of annular workpieces, radial location when being used for the annular workpieces grinding is characterized in that: the radial location supporting during the annular workpieces grinding is rolling bearing.Described rolling bearing is provided with two, the radial location when realizing the annular workpieces grinding.
The operation principle of the utility model centerless grinding rolling bearing is: adopt rolling bearing to contact supporting as supporting with the outer surface of annular workpieces, sliding friction is become rolling friction, thereby reduced the frictional force between area supported and the annular workpieces outer round surface greatly.
The beneficial effects of the utility model are: the utility model is simple in structure, the change sliding friction is rolling friction, reduced the coefficient of friction on area supported and excircle of workpiece surface greatly, thereby reduce friction, effectively solved sliding bearing excircle of workpiece surface galling, generation frictional heat and wear problems.
Description of drawings
Fig. 1 is a centerless fixture work schematic diagram.
Fig. 2 is a prior art supporting structure schematic diagram.
Fig. 3 is that the utility model centerless grinding is supported schematic diagram with rolling bearing.
Among the figure: 1, annular workpieces; 2, driving-disc; 3, supporting; 4, rolling bearing; 5, locating shaft; 6, bearing support; n
1, the main axis rotation direction; n
2, the annular workpieces direction of rotation.
The specific embodiment
With reference to the accompanying drawings 3, a kind of centerless grinding is supported with rolling bearing, two rolling bearings 4 are adopted in the supporting of grinding annular workpieces 1, using locating shaft 5 respectively two rolling bearings 4 and the bearing support 6 that matches with it to be connected is that a supporting is whole, realizes the radial location of annular workpieces by two whole supporting structures.Radial location when realizing grinding annular workpieces outer round surface.The annular workpieces main shaft drives driving-disc 2 rotations, and by electromagnetic force or annular workpieces 1 another surperficial axial compressive force, driving-disc 2 drives annular workpieces 1 rotation, realizes the axial location and the driving of annular workpieces.Rolling bearing 4 directly contacts with the outer round surface of annular workpieces 1 as bearing-surface, rotates along with the rotation of annular workpieces.Friction mode between the two is rolling friction, has reduced frictional force greatly, has effectively solved the problem that frictional heating and annular workpieces outer round surface scratch.Simultaneously, rolling bearing 4 adopts the higher metal of hardness, and is wear-resistant, and the offset of workpiece is difficult for changing in the process, needn't frequently adjust, and has improved operating efficiency.
Claims (2)
1. a centerless grinding is supported with rolling bearing, is supported on the outer round surface of annular workpieces, and the radial location when being used for the annular workpieces grinding is characterized in that: rolling bearing is adopted in the radial location supporting during the annular workpieces grinding.
2. described centerless grinding is supported with rolling bearing according to claim 1, it is characterized in that: described rolling bearing is provided with two, the radial location when realizing the annular workpieces grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205920695U CN201833241U (en) | 2010-11-04 | 2010-11-04 | Rolling bearing support for centerless grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205920695U CN201833241U (en) | 2010-11-04 | 2010-11-04 | Rolling bearing support for centerless grinding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201833241U true CN201833241U (en) | 2011-05-18 |
Family
ID=44003337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205920695U Expired - Fee Related CN201833241U (en) | 2010-11-04 | 2010-11-04 | Rolling bearing support for centerless grinding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201833241U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303251A (en) * | 2011-08-12 | 2012-01-04 | 成都科盛石油科技有限公司 | Unidirectional regulating sliding support device |
| CN102303252A (en) * | 2011-08-12 | 2012-01-04 | 成都科盛石油科技有限公司 | Calibration-free bidirectional regulating sliding supporter |
| CN109454520A (en) * | 2018-11-14 | 2019-03-12 | 中国航发动力股份有限公司 | Rotary fixing device for ring-shaped work pieces reconditioning |
| CN110355627A (en) * | 2019-06-18 | 2019-10-22 | 无锡诚石轴承有限公司 | A kind of centreless grinding supporting plate magnetizer |
| CN111775038A (en) * | 2020-06-23 | 2020-10-16 | 宁波安杰森精密机械制造有限公司 | High-precision reciprocating single-shaft oscillation ultra-precision grinding machine |
| CN111843825A (en) * | 2020-07-08 | 2020-10-30 | 广州大学 | Magnetic elastic floating support device for grinding annular workpiece |
| CN112557131A (en) * | 2019-09-10 | 2021-03-26 | 宝山钢铁股份有限公司 | Method for analyzing and evaluating wear galling of metal surface and insert thereof |
-
2010
- 2010-11-04 CN CN2010205920695U patent/CN201833241U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303251A (en) * | 2011-08-12 | 2012-01-04 | 成都科盛石油科技有限公司 | Unidirectional regulating sliding support device |
| CN102303252A (en) * | 2011-08-12 | 2012-01-04 | 成都科盛石油科技有限公司 | Calibration-free bidirectional regulating sliding supporter |
| CN109454520A (en) * | 2018-11-14 | 2019-03-12 | 中国航发动力股份有限公司 | Rotary fixing device for ring-shaped work pieces reconditioning |
| CN110355627A (en) * | 2019-06-18 | 2019-10-22 | 无锡诚石轴承有限公司 | A kind of centreless grinding supporting plate magnetizer |
| CN112557131A (en) * | 2019-09-10 | 2021-03-26 | 宝山钢铁股份有限公司 | Method for analyzing and evaluating wear galling of metal surface and insert thereof |
| CN112557131B (en) * | 2019-09-10 | 2022-08-16 | 宝山钢铁股份有限公司 | Method for analyzing and evaluating wear galling of metal surface and insert thereof |
| CN111775038A (en) * | 2020-06-23 | 2020-10-16 | 宁波安杰森精密机械制造有限公司 | High-precision reciprocating single-shaft oscillation ultra-precision grinding machine |
| CN111775038B (en) * | 2020-06-23 | 2022-04-22 | 宁波安杰森精密机械制造有限公司 | High-precision reciprocating single-shaft oscillation ultra-precision grinding machine |
| CN111843825A (en) * | 2020-07-08 | 2020-10-30 | 广州大学 | Magnetic elastic floating support device for grinding annular workpiece |
| CN111843825B (en) * | 2020-07-08 | 2022-02-01 | 广州大学 | Magnetic elastic floating support device for grinding annular workpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rolling bearing support for centerless grinding Effective date of registration: 20121211 Granted publication date: 20110518 Pledgee: Pudong Development Bank of Nanhui Shanghai branch Pledgor: Shanghai TIEKE Bearing Co., Ltd. Registration number: 2012990000778 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |