CN201664761U - Locating structure for lathe spindle - Google Patents
Locating structure for lathe spindle Download PDFInfo
- Publication number
- CN201664761U CN201664761U CN2010201213426U CN201020121342U CN201664761U CN 201664761 U CN201664761 U CN 201664761U CN 2010201213426 U CN2010201213426 U CN 2010201213426U CN 201020121342 U CN201020121342 U CN 201020121342U CN 201664761 U CN201664761 U CN 201664761U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearing
- spindle
- thrust ball
- roller bearing
- 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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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a locating structure for a lathe spindle, which comprises a spindle, a tapered bore double-row cylindrical roller bearing, a tapered roller bearing and a thrust ball bearing, wherein the front end part of the spindle is supported on the front lateral wall of a spindle box body by the tapered bore double-row cylindrical roller bearing; the rear end part is supported on the rear lateral wall of the spindle box body by the tapered roller bearing; the thrust ball bearing is sleeved on the front end part of the spindle; and the front lateral wall of the spindle box body is arranged on one side of the thrust ball bearing, and the tapered bore double-row cylindrical roller bearing is arranged on the other side thereof. The locating structure of the utility model can prevent the spindle from deforming, eliminate the vibration of the spindle and improve the machining accuracy.
Description
Affiliated technical field
The utility model relates to a kind of lathe spindle location structure.
Background technology
Traditional lathe main shaft location structure, normally the leading section of machine tool chief axis is bearing on the front side wall of main shaft casing by the conical bore Biserial cylindrical roller bearing, the rearward end of machine tool chief axis is bearing on the rear wall of main shaft casing by taper roll bearing, be set with thrust ball bearing on the rearward end of machine tool chief axis, a side of thrust ball bearing is that the rear wall of main shaft casing, its opposite side are a shaft shoulder of machine tool chief axis.The main effect of thrust ball bearing is an axial thrust load of bearing lathe cutting force in process.Lathe is in process, workpiece is installed on the chuck of front-end of spindle, the cutting force that produces mainly acts on the chuck, and the radial load that acts on the cutting force decomposition on the chuck is born by the thrust ball bearing on the main shaft by the axial force that conical bore Biserial cylindrical roller bearing and taper roll bearing on the main shaft are born, cutting force decomposes.Because distance is longer between chuck and the thrust ball journal, therefore main shaft not only deforms easily in process, and usually takes place to vibrate and influence machining accuracy.
The utility model content
The technical problems to be solved in the utility model provides a kind of lathe spindle location structure, and this location structure not only can avoid main shaft to deform, and can eliminate the vibration raising machining accuracy of main shaft.
In order to solve the problems of the technologies described above, a kind of lathe spindle location structure of the utility model, this location structure contains main shaft, conical bore Biserial cylindrical roller bearing, taper roll bearing, thrust ball bearing, the leading section of main shaft is bearing on the front side wall of main shaft casing by the conical bore Biserial cylindrical roller bearing, the rearward end of main shaft is bearing on the rear wall of main shaft casing by taper roll bearing, thrust ball bearing is sleeved on the leading section of main shaft, and a side of thrust ball bearing is that main shaft casing front side wall, its opposite side are the conical bore Biserial cylindrical roller bearing.
Because thrust ball bearing is positioned at the leading section of main shaft, the chuck of front-end of spindle and the distance between the thrust ball bearing shorten greatly, and the rigidity of main shaft improves greatly, and therefore main shaft can not deform in process.Because main shaft do not deform, so main shaft can not vibrate, thereby improved machining accuracy.
Description of drawings
Fig. 1 is the schematic diagram of a kind of lathe spindle location structure of the utility model.
1. taper roll bearings among the figure, 2. rear wall, 3. main shaft, 4. front side wall, 5. thrust ball bearing, 6. conical bore Biserial cylindrical roller bearing.
The specific embodiment
Among Fig. 1, a kind of lathe spindle location structure of the utility model, this location structure contains main shaft 3, conical bore Biserial cylindrical roller bearing 6, taper roll bearing 1, thrust ball bearing 5, the leading section of main shaft 3 is bearing on the front side wall 4 of main shaft casing by conical bore Biserial cylindrical roller bearing 6, the rearward end of main shaft 3 is bearing on the rear wall 2 of main shaft casing by taper roll bearing 1, thrust ball bearing 5 is sleeved on the leading section of main shaft 3, and a side of thrust ball bearing 5 is that main shaft casing front side wall 4, its opposite side are conical bore Biserial cylindrical roller bearing 6.Because thrust ball bearing 5 is positioned on the leading section of main shaft 3, distance shortens greatly between the chuck of main shaft 3 front ends and the thrust ball bearing 5, and the rigidity of main shaft 3 improves greatly, facts have proved, the rigidity of main shaft 3 improves more than five times, and therefore main shaft 3 can not deform in process.Because main shaft 3 do not deform, so main shaft 3 can not vibrate, thereby improved machining accuracy.
Claims (1)
1. lathe spindle location structure, this location structure contains main shaft, conical bore Biserial cylindrical roller bearing, taper roll bearing, thrust ball bearing, the leading section of main shaft is bearing on the front side wall of main shaft casing by the conical bore Biserial cylindrical roller bearing, the rearward end of main shaft is bearing on the rear wall of main shaft casing by taper roll bearing, it is characterized in that: thrust ball bearing is sleeved on the leading section of main shaft, and a side of thrust ball bearing is that main shaft casing front side wall, its opposite side are the conical bore Biserial cylindrical roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201213426U CN201664761U (en) | 2010-03-02 | 2010-03-02 | Locating structure for lathe spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201213426U CN201664761U (en) | 2010-03-02 | 2010-03-02 | Locating structure for lathe spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201664761U true CN201664761U (en) | 2010-12-08 |
Family
ID=43265715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201213426U Expired - Fee Related CN201664761U (en) | 2010-03-02 | 2010-03-02 | Locating structure for lathe spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201664761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883714A (en) * | 2012-12-19 | 2014-06-25 | 天津勇猛机械制造有限公司 | Travelling continuously variable transmission with service life prolongable and strength increasable |
| CN104475964A (en) * | 2014-11-21 | 2015-04-01 | 兰州理工大学 | Friction welding machine spindle box structure capable of bearing large torque and large upsetting force |
-
2010
- 2010-03-02 CN CN2010201213426U patent/CN201664761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883714A (en) * | 2012-12-19 | 2014-06-25 | 天津勇猛机械制造有限公司 | Travelling continuously variable transmission with service life prolongable and strength increasable |
| CN104475964A (en) * | 2014-11-21 | 2015-04-01 | 兰州理工大学 | Friction welding machine spindle box structure capable of bearing large torque and large upsetting force |
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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: 20101208 Termination date: 20140302 |