CN202742202U - High-precision main shaft structure on steel ball grinding machine - Google Patents
High-precision main shaft structure on steel ball grinding machine Download PDFInfo
- Publication number
- CN202742202U CN202742202U CN 201220385748 CN201220385748U CN202742202U CN 202742202 U CN202742202 U CN 202742202U CN 201220385748 CN201220385748 CN 201220385748 CN 201220385748 U CN201220385748 U CN 201220385748U CN 202742202 U CN202742202 U CN 202742202U
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- CN
- China
- Prior art keywords
- main shaft
- precision
- steel ball
- bearing
- shaft structure
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a high-precision main shaft structure on a steel ball grinding machine. The high-precision main shaft structure comprises a grinding disk, a rotary disk and a main shaft, wherein the upper part of the main shaft is provided with a thrust ball bearing, the middle part of the main shaft is provided with a deep groove ball bearing, axial positioning is realized through compacting the inner ring of a bearing with a spacer bush on a rotary nut, and an unloading belt pulley assembly is connected with the main shaft through a spline. The grinding disk is fixed on the rotary disk. The high-precision main shaft structure has the effects that the main shaft structure is changed to realize the improvement and stabilization of the precision of the main shaft, the precision of a grinding plate groove of a steel ball in the grinding area is improved, and the grinding of the high-precision steel ball is realized.
Description
Technical field:
The utility model relates to a kind of high-precision main shaft structure, is specially adapted to use on the steel ball lapping machine.
Background technology:
More and more higher to the required precision of lappingout steel ball processing at present, the particularly variation of steel ball abrasive sheet groove precision in abrasive areas directly has influence on the machining accuracy of this processing batch steel ball.Existing main axle structure is comprised of three cover bearings, the radial and axial location that the back-to-back installation of two cover taper roll bearings at main shaft two ends has realized main shaft, a middle cover cylinder roller bearing is as auxiliary bearing, thereby formed a cover main axle structure, its shortcoming is: because the main axle structure processing technology is poor, thereby the precision that has affected bear box improves, and the running accuracy of taper roll bearing does not satisfy the processing of steel ball with high precision.
Summary of the invention:
Task of the present utility model is to propose a kind of steel ball abrasive sheet groove stable accuracy in abrasive areas, the high-precision main shaft structure on the steel ball lapping machine of stable processing.Task of the present utility model is finished like this, it comprises abrasive disk, rolling disc and main shaft, it is characterized in that: thrust ball bearing is equipped with on the top of main shaft, deep groove ball bearing is equipped with at the middle part of main shaft, axial location is that off-load belt pulley assembly and main shaft pass through spline joint by the interior ring of rotating nut with spacer compression bearing.Described rolling disc is connected with main shaft by screw.Be fixed with abrasive disk on the described rolling disc.The utlity model has following effect: the utility model is by the change of main axle structure, realized the raising of main shaft precision and stable, guaranteed that the precision of steel ball abrasive sheet groove in abrasive areas improves, and the attrition process of steel ball with high precision is achieved.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
The drawing explanation: 1, abrasive disk; 2, main shaft; 3, rolling disc; 4, thrust ball bearing; 5, bearing block; 6, deep groove ball bearing; 7, bearing; 8, spacer; 9, rotating nut; 10, off-load belt pulley assembly.
The specific embodiment:
Describe embodiment in detail in conjunction with above accompanying drawing, it is fixing by bearing block 5 that thrust ball bearing 4 is equipped with on the top of main shaft 2, in order to bear pure axial force and control end surface jitter, the middle part of main shaft 2 is equipped with deep groove ball bearing 6 and is fixed by bearing block, in order to bearing radial force and control circular runout, cylinder roller bearing also can be used in the middle part of main shaft, compress the interior ring realization axial location of bearing 7 on the rotating nut 9 with spacer 8, and make thrust ball bearing 4 that certain pretightning force be arranged, bearing 7 adopts taper roll bearing or angular contact bearing, abrasive disk 1 is fixed on the rolling disc 3, rolling disc links together by screw and bearing, off-load belt pulley assembly 10 and the rotation of main shaft by spline joint realization main shaft.By the assembling of above part, guaranteed axial runout and circular runout can not occur when main shaft rotates, thereby realized good stability.
Claims (3)
1. the high-precision main shaft structure on the steel ball lapping machine, it comprises abrasive disk, rolling disc and main shaft, it is characterized in that: thrust ball bearing is equipped with on the top of main shaft, deep groove ball bearing is equipped with at the middle part of main shaft, axial location is that off-load belt pulley assembly and main shaft pass through spline joint by the interior ring of rotating nut with spacer compression bearing.
2. the high-precision main shaft structure on the steel ball lapping machine according to claim 1, it is characterized in that: described rolling disc is connected with main shaft by screw.
3. the high-precision main shaft structure on the steel ball lapping machine according to claim 2 is characterized in that: be fixed with abrasive disk on the described rolling disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385748 CN202742202U (en) | 2012-08-06 | 2012-08-06 | High-precision main shaft structure on steel ball grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385748 CN202742202U (en) | 2012-08-06 | 2012-08-06 | High-precision main shaft structure on steel ball grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202742202U true CN202742202U (en) | 2013-02-20 |
Family
ID=47701650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220385748 Expired - Fee Related CN202742202U (en) | 2012-08-06 | 2012-08-06 | High-precision main shaft structure on steel ball grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202742202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117902A (en) * | 2014-08-04 | 2014-10-29 | 宁国市南方耐磨材料有限公司 | Abrasion-resistant steel ball grinding machine |
-
2012
- 2012-08-06 CN CN 201220385748 patent/CN202742202U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117902A (en) * | 2014-08-04 | 2014-10-29 | 宁国市南方耐磨材料有限公司 | Abrasion-resistant steel ball grinding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20180806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |