CN102328101A - Device for moving tailstock sleeve of machine tool - Google Patents
Device for moving tailstock sleeve of machine tool Download PDFInfo
- Publication number
- CN102328101A CN102328101A CN201110144896A CN201110144896A CN102328101A CN 102328101 A CN102328101 A CN 102328101A CN 201110144896 A CN201110144896 A CN 201110144896A CN 201110144896 A CN201110144896 A CN 201110144896A CN 102328101 A CN102328101 A CN 102328101A
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- ball bearing
- worm
- angular contact
- tailstock
- contact ball
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Abstract
The invention relates to a device for moving a tailstock sleeve of a machine tool, belonging to the field of machine tools. The device is provided with a tailstock shell and is characterized in that a bearing check ring, a left end face of an outer ring of an angular contact ball bearing leans against the right end face of the bearing check ring, a right end of an inner ring of the angular contact ball bearing leans against on the left end face of a spacer bush, an inner hole of the angular contact ball bearing is positioned through an outer circle of a connecting bush, an inner hole of the connecting bush is guided through a lead screw and a sliding key, the sliding key is arranged inside a keyway of the lead screw, a worm gear is sleeved on the connecting bush, the worm gear and a worm form a worm gear pair, the worm is fixed on a worm shaft, a left of an inner ring of the other angular contact ball bearing is positioned by the other spacer bush, a thrust ball bearing is sleeved on the lead screw, the right end of the thrust ball bearing leans against on a spring, a tailstock sleeve is arranged inside the tailstock shell, and the lead screw is located inside the tailstock sleeve.
Description
Technical field
The present invention relates to machine tool field, specifically a kind of tail stock for machine tool sleeve mobile device.
Background technology
As everyone knows, tailstock moves through the gear external toothing at present, drives the screw mandrel rotation, thereby realizes the stretching motion of sleeve, and the operation handwheel is in the tailstock rear end.So just produced four kinds of design defect: one, gear pair does not have self-locking performance, and sleeve is loosening easily; Two, gear pair produces axially-movable when disk spring compresses, and gear pair is worn easily; Three, gear reduction ratio is little, and bigger pressure can not be provided; Four, along with diameter of work becomes big, it is wide more that the workpiece lathe bed also becomes, and the operation handwheel is far away more from the operator, is not easy to operator's operation.
Summary of the invention
In order to overcome the deficiency of prior art, the present invention provides a kind of tail stock for machine tool sleeve mobile device, adopts worm-and-wheel gear; Worm gear is connected with screw mandrel through adapter sleeve; The axial force that worm and gear produces has a pair of angular contact bearing to bear, thereby has realized self-locking, big pressure; Mid-plane non-migration in the worm-drive, operating position is positioned at the tailstock side.
The technical solution adopted for the present invention to solve the technical problems is: a kind of tail stock for machine tool sleeve mobile device, be provided with the tailstock body shell, and it is characterized in that; Be equipped with in the tailstock body shell and hold shaft retaining ring, the angular contact ball bearing outer ring left side leans against on the end ring right side, and angular contact ball bearing inner ring right-hand member leans against on the spacer left side; The angular contact ball bearing endoporus is by adapter sleeve cylindrical location, and the adapter sleeve endoporus is by screw mandrel and feather key guiding, and feather key is placed in the keyway of screw mandrel; Worm gear set is contained on the adapter sleeve, and worm gear and worm screw form worm gear, and worm screw is fixed on the worm shaft; Another angular contact ball bearing inner ring left end is by another spacer location, and thrust ball bearing is sleeved on the screw mandrel, and the thrust ball bearing right-hand member leans against on the spring; In the tailstock body shell tailstock is housed, screw mandrel is positioned at tailstock.
The present invention also can realize through following measure: spring is placed in the bearing block left end circular hole, and the disk spring left end is located by bearing block, and the disk spring right-hand member is located by the disk spring seat.
The invention has the beneficial effects as follows that adopt worm-and-wheel gear, worm gear is connected with screw mandrel through adapter sleeve; The axial force that worm and gear produces has a pair of angular contact bearing to bear, thereby has realized self-locking, big pressure; Mid-plane non-migration in the worm-drive, operating position is positioned at the tailstock side.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure: 1. angular contact ball bearing, 2. adapter sleeve, 3. worm gear, 4. feather key, 5. angular contact ball bearing, 6. adjusting pad; 7. thrust ball bearing, 8. bearing block, 9. disk spring, 10. disk spring seat, 11. glands, 12. screw mandrels; 13. spring, 14. keys, 15 spacers, 16. end rings, 17. tailstocks; 18. worm shaft, 19. handwheels, 20. keys, 21. nuts, 22. tailstock body shells.
The specific embodiment
Fig. 1, shown in Figure 2, the present invention are provided with tailstock body shell 22, and tailstock 17 is placed in the tailstock body shell 22; End ring 16 is placed in the tailstock body shell 22, and end ring 16 left end cascaded surfaces lean against on the tailstock body shell 22, and left side, angular contact ball bearing 1 outer ring leans against on end ring 16 right sides; Angular contact ball bearing 1 inner ring right-hand member leans against on spacer 15 left sides; Angular contact ball bearing 1 cylindrical is by tailstock body shell 22 location, and angular contact ball bearing 1 endoporus is by adapter sleeve 2 cylindricals location, and adapter sleeve 2 cylindricals are located by angular contact bearing 1 endoporus; Adapter sleeve 2 endoporus are by screw mandrel 12 and feather key 4 guiding; Feather key 4 is placed in screw mandrel 12 keyways, and adapter sleeve 2 left ends are by spacer 15 location, and adapter sleeve 2 right-hand members are located by worm gear 3 left sides; Worm gear 3 endoporus are by adapter sleeve 2 and feather key 4 location, and worm gear 3 forms worm gear with worm screw, and worm screw is installed on the worm shaft 18, and worm gear 3 left ends are by adapter sleeve 2 location, and worm gear 3 right-hand members are by another spacer location; Angular contact ball bearing 5 cylindricals are by tailstock body shell location, and angular contact ball bearing 5 endoporus are by adapter sleeve 2 location, and angular contact ball bearing 5 inner ring left ends and outer ring right-hand member are respectively by a spacer location; Adjusting pad 6 left ends are by screw mandrel 12 cascaded surfaces location, and adjusting pad 6 right-hand members are by location, thrust ball bearing 7 left sides, and thrust ball bearing 7 left ends are located by adjusting pad 6 right-hand members; Thrust ball bearing 7 right-hand members lean against on the spring 13, and bearing block 8 cylindricals are led by branch sleeve, and bearing block 8 left ends are by spring 13 location; Spring 13 is placed in the bearing block 8 left end circular holes; Disk spring 9 left ends are by bearing block 8 location, and disk spring 9 right-hand members are by disk spring seat 10 location, and disk spring seat 10 is by gland 11 location; Disk spring seat 10 cylindricals are located by branch sleeve, and gland 11 is fixed on the branch sleeve; Axially by the taper roll bearing location, key 20 is placed in worm shaft 18 keyways worm shaft 18, and handwheel 19 left ends are by worm shaft 18 cascaded surfaces location, and handwheel 19 right-hand members are by nut 21 location, and nut 21 is fixed on worm shaft 18 right-hand members.
The present invention rotates handwheel 19 when needing top tight workpiece, drive worm shaft 18 rotations through key 20, and worm shaft 18 drives worm gear 3 through worm gear and rotates; Radial load reaches adapter sleeve 2 through key 14, reaches screw mandrel 12 by feather key 4 again, drives screw mandrel 12 and rotates, because tailstock 17 frictional force are bigger; Screw mandrel 12 is through the rotation on one side of feather key 4 guiding, Yi Bian slide backward thrust ball bearing 7 right-hand members compression spring 13; When spring 13 elastic force during greater than tailstock 17 stiction, tailstock 17 begins to move forward, and withstands workpiece; Along with pressure increases, spring 13 is continued compression, thrust ball bearing 7 right-hand member compression axis bearings 8; And then make disk spring 9 compressions, and workpiece is also held out against simultaneously, and disk spring 9 can play the thermal compensation effect; When unloading workpiece, backward rotation handwheel 19 drives worm shaft 18 rotations through key 20, and worm shaft 18 drives worm gear 3 rotations through worm gear; Radial load reaches adapter sleeve 2 through key 14, reaches screw mandrel 12 by feather key 4 again, drive screw mandrel 12 and rotate, thereby sleeve moves backward; Pressure is less than disk spring 9 elastic force, and elastic force discharges, and promotes screw mandrel 12 to front slide, along with pressure diminishes; Top disengaging workpiece, pressure disappears, and spring 13 also discharges elastic force, because elastic force is less than tailstock 17 frictional force; Screw mandrel 12 continues to front slide, and the final shaft shoulder withstands on end ring 16 end faces, and screw mandrel 12 rotates, thereby sleeve slides backward.
Claims (2)
1. a tail stock for machine tool sleeve mobile device is provided with the tailstock body shell, it is characterized in that: be equipped with in the tailstock body shell and hold shaft retaining ring; The angular contact ball bearing outer ring left side leans against on the end ring right side, and angular contact ball bearing inner ring right-hand member leans against on the spacer left side, and the angular contact ball bearing endoporus is located by the adapter sleeve cylindrical; The adapter sleeve endoporus is by screw mandrel and feather key guiding, and feather key is placed in the keyway of screw mandrel, and worm gear set is contained on the adapter sleeve; Worm gear and worm screw form worm gear, and worm screw is fixed on the worm shaft, and another angular contact ball bearing inner ring left end is by another spacer location; Thrust ball bearing is sleeved on the screw mandrel; The thrust ball bearing right-hand member leans against on the spring, in the tailstock body shell tailstock is housed, and screw mandrel is positioned at tailstock.
2. according to the said tail stock for machine tool sleeve of claim 1 mobile device, it is characterized in that said spring is placed in the bearing block left end circular hole, the disk spring left end is located by bearing block, and the disk spring right-hand member is located by the disk spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110144896A CN102328101A (en) | 2011-06-01 | 2011-06-01 | Device for moving tailstock sleeve of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110144896A CN102328101A (en) | 2011-06-01 | 2011-06-01 | Device for moving tailstock sleeve of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102328101A true CN102328101A (en) | 2012-01-25 |
Family
ID=45480211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110144896A Pending CN102328101A (en) | 2011-06-01 | 2011-06-01 | Device for moving tailstock sleeve of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102328101A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990096A (en) * | 2012-11-30 | 2013-03-27 | 宁夏新瑞长城机床有限公司 | Heavy-load tailstock with large tightly-jacking force |
| CN104511760A (en) * | 2014-12-19 | 2015-04-15 | 昆山旭祥钣金工业有限公司 | Tail rack sleeve and reaming clamp |
| CN106141221A (en) * | 2016-07-31 | 2016-11-23 | 贵州高峰石油机械股份有限公司 | A kind of pipe threading machine is top with telescopic lengthening |
-
2011
- 2011-06-01 CN CN201110144896A patent/CN102328101A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990096A (en) * | 2012-11-30 | 2013-03-27 | 宁夏新瑞长城机床有限公司 | Heavy-load tailstock with large tightly-jacking force |
| CN104511760A (en) * | 2014-12-19 | 2015-04-15 | 昆山旭祥钣金工业有限公司 | Tail rack sleeve and reaming clamp |
| CN106141221A (en) * | 2016-07-31 | 2016-11-23 | 贵州高峰石油机械股份有限公司 | A kind of pipe threading machine is top with telescopic lengthening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |