CN203679294U - Double-mandrel direct-connection precise rotating shaft - Google Patents
Double-mandrel direct-connection precise rotating shaft Download PDFInfo
- Publication number
- CN203679294U CN203679294U CN201320531448.7U CN201320531448U CN203679294U CN 203679294 U CN203679294 U CN 203679294U CN 201320531448 U CN201320531448 U CN 201320531448U CN 203679294 U CN203679294 U CN 203679294U
- Authority
- CN
- China
- Prior art keywords
- axle
- ball bearing
- contact ball
- outer cover
- precision rotation
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Mounting Of Bearings Or Others (AREA)
- Retarders (AREA)
Abstract
The utility model discloses a double-mandrel direct-connection precise rotating shaft. The double-mandrel direct-connection precise rotating shaft comprises a main mandrel and a mandrel, wherein the mandrel penetrates through and is fixedly connected with a wave generator of a harmonic reducer; the large end of the main mandrel is fixedly connected with a flexible gear of the harmonic reducer; a rigid gear of the harmonic reducer is fixedly connected with a B shaft outer cover; a first contact ball bearing and a second contact ball bearing are fixed on the inner side, close to the harmonic reducer, of the B shaft outer cover; a third contact ball bearing and a fourth contact ball bearing are fixed on the inner side, far away from the harmonic reducer, of the B shaft outer cover; inner rings and outer rings of the first, the second, the third and the fourth contact ball bearing are connected with inner and outer ring sleeves respectively; a first flange and a second flange are arranged at the two ends of the B shaft outer cover respectively. According to the double-mandrel direct-connection precise rotating shaft, two mandrels are arranged inside, and the small mandrel drives the large mandrel through the effect of the harmonic reducer.
Description
Technical field
The utility model belongs to Digit Control Machine Tool and precision movement platform field, is specifically related to a kind of precision rotation axle.
Background technology
Along with the development of Numeric Control Technology, for pursuing the digital control processing effect of high speed and super precision, many key core components and parts are used in Digit Control Machine Tool field, and precision rotation axle (main shaft), as the requisite core components and parts of Digit Control Machine Tool, is widely used in the Digit Control Machine Tool of ultraprecise processing.At present, the special precision rotation axle (main shaft) of Digit Control Machine Tool is at present domestic mostly is import (Taiwan, Japan, Europe etc.), but majority state is for the consideration that core technology is protected, and some high speed and precision rotating shaft (main shaft) is limited Chinese exports.
Precision rotation axle (main shaft) price of these introductions is high, delivery cycle is long, complex structure, components and parts damage after inconvenient maintenance, and because they are to be all introduced into as standard component, be difficult to carry out changing and designing and meet concrete application scenario flexibly according to concrete application scenario, these have all restricted making smooth advances from master project greatly.
Summary of the invention
Main purpose of the present utility model, be to provide a kind of simple in structure, deceleration precision is higher, force transfering characteristic good, can overcome the precision rotation axle of larger cutting force effect.
For achieving the above object, the technical solution of the utility model is: twin shaft associated mode precision rotation axle, comprise main spindle and axle, axle is passed the wave producer of harmonic speed reducer and is fixedly connected with it, the large end of main spindle is fixedly connected with the flexbile gear of harmonic speed reducer, and the firm wheel of harmonic speed reducer is fixedly connected with B axle outer cover; B axle outer cover is fixed with the first contact ball bearing and the second contact ball bearing near near inner side harmonic speed reducer, B axle outer cover is fixed with the 3rd contact ball bearing and the 4th contact ball bearing away from the inner side of harmonic speed reducer, and the inner ring of described the first contact ball bearing, the second contact ball bearing, the 3rd contact ball bearing, the 4th contact ball bearing is connected with outer ring sleeve with inner ring sleeve respectively with outer ring; The two ends of B axle outer cover are respectively arranged with the first flange and the second flange.
As optimization, the large end of main spindle is pressed close in the outside of described flexbile gear, and the inner face of flexbile gear is pressed close to a collar, and screw is fixed on the large end of main spindle through collar and flexbile gear.
In the installing hole of described collar, be fixed with inner bearing, the axle journal of the large end of axle is fixedly mounted in described inner bearing.
Described wave producer is fixedly connected with axle by flat key.
On the firm wheel end face of described harmonic speed reducer, be fixed with decelerator end cap, in the installing hole of decelerator end cap, be fixed with outer bearing, axle is arranged on described outer bearing.
The firm wheel of described harmonic speed reducer is fixed on branch sleeve, and branch sleeve is fixedly connected with the first flange that is fixed on B axle outer cover.
In described B axle outer cover, the below of ring is provided with the shaft shoulder, and the outer ring of the 3rd contact ball bearing abuts against on the shaft shoulder upper surface of ring below in B axle outer cover, and the inner ring of the 3rd contact ball bearing abuts against on snap ring.
The outer ring of described the first contact ball bearing is near the convex shoulder of the first flange, and the inner ring of the first contact ball bearing is near the shaft shoulder lower surface of the large end of main spindle.
Described the first flange and the second flange are with being provided with O shape rubber seal between main spindle.
The outer end that described axle is positioned at wave producer is provided with round nut, and described main spindle is positioned at the 3rd contact ball bearing outer end and is provided with circular nut with lock groove.
The utility model twin shaft associated mode precision rotation axle, inside has two single mandrel, wherein large (axle journal external diameter 65mm) of main spindle size, axle external diameter less (axle journal external diameter 10mm), by the effect of harmonic speed reducer, well realize the object that drives macro-axis (using very little power to drive larger load) with little axle; Two single mandrel of this precision rotation axle directly link together by collar, simple in structure, axial location is reliable, adopts the very high contact ball bearing of accuracy class, axial clearance regulation convenient (realizing by the plain round nut of top and the circular nut with lock groove of below); This revolute axes configuration compactness, good stability, profile is small and exquisite, and part is easily processed, and development cost is low, and the construction cycle is short, can do and change flexibly design according to different application scenarios, is suitable for very much in the Digit Control Machine Tool of ultraprecise processing.This precision rotation axle adopts harmonic speed reducer to be used as its reducing gear, and speed-down action is accurate, precision high (circular runout, end face run-out are all less than 3um), and the transmission characteristic of power is good; This precision rotation axle adopts standard component with low cost (O shape rubber seal and oil sealing) sealing, and encapsulating method is simple, reliable; This precision rotation axle adopts grease lubrication mode, only needs regularly (1 year 1 time) to add lubricating grease, easy to maintenance.
Brief description of the drawings
Fig. 1 is the utility model twin shaft associated mode precision rotation axle construction schematic diagram.
Detailed description of the invention
The utility model is described in further detail for embodiment plan given below; but can not be interpreted as it is the restriction to the utility model protection domain; those skilled in the art to nonessential improvement and adjustment more of the present utility model, still belong to protection domain of the present utility model according to the utility model content.
Twin shaft associated mode precision rotation axle, as shown in Figure 1, this rotating shaft has main spindle 19 and 32 two axles of axle, on the axle journal of axle 32 large ends, fixedly mount inner bearing 4, inner bearing 4 is fixed in collar 25 in installing hole, the flexbile gear 29 of collar 25 lower surfaces and harmonic speed reducer is fitted, and is directly connected on the large end of main spindle 19 by screw 3.Harmonic speed reducer flexbile gear 29 engages with the firm wheel 27 of harmonic speed reducer by the small teeth of a circle on surface, outer ring, and the firm wheel 27 of harmonic speed reducer is fixed on branch sleeve 24, and branch sleeve 24 is fixedly connected with the first flange 7 being fixed on B axle outer cover 20.The inner peripheral surface of harmonic speed reducer flexbile gear 29 and the wave producer of harmonic speed reducer 2 are fitted, and wave producer is connected in axle 32 by flat key 1.On the axle journal of axle 32 other ends, outer bearing 31 is installed, outer bearing 31 is fixed in the installing hole of decelerator end cap 28, decelerator end cap 28 is fixed on Rigid Gear of Harmonic Reducer 27 end faces, and axle 32 regulates by round nut 33 with main spindle 19 axial location from the top down.
Main spindle 19 small ends of this rotating shaft under, hold upper greatly, the below of B axle outer cover 20 interior rings is provided with the shaft shoulder, this shaft shoulder upper surface is as the axial locating surface of the 3rd contact ball bearing 21, the 4th contact ball bearing 22, the accuracy class of the 3rd contact ball bearing 21, the 4th contact ball bearing 22 is P4, adopt the mode of combination (DT) side by side to install, its Internal and external cycle upper surface is separately installed with inner ring sleeve 11 and outer ring sleeve 12, more other the first contact ball bearing 9, the second contact ball bearing 10 are arranged on the upper surface of inner ring sleeve 11 and outer ring sleeve 12.
The outer ring of the first contact ball bearing 9 is leaned on dead on the convex shoulder of the first flange 7, and the inner ring of the first contact ball bearing 9 is by extremely on the large shaft shoulder lower surface of holding of main spindle 19.The outer ring of the 3rd contact ball bearing 21 is by the shaft shoulder upper surface below extremely encircling in B axle outer cover, and inner ring is by extremely on snap ring 13.Axle 32 regulates by circular nut with lock groove 15 with main spindle 19 axial location from bottom to top.Whole axle is to realize sealing by O shape rubber seal 6 and oil sealing 16, O shape rubber seal 18, and the lower end of axle system is provided with the second flange 17.This close rotating shaft (main shaft) is successfully applied on certain model grinding machine of independent research at present, and every design objective all reaches designing requirement.
Claims (10)
1. a twin shaft associated mode precision rotation axle, comprises main spindle and axle, and axle is passed the wave producer of harmonic speed reducer and is fixedly connected with it, and the large end of main spindle is fixedly connected with the flexbile gear of harmonic speed reducer, and the firm wheel of harmonic speed reducer is fixedly connected with B axle outer cover; It is characterized in that B axle outer cover is fixed with the first contact ball bearing and the second contact ball bearing near near inner side harmonic speed reducer, B axle outer cover is fixed with the 3rd contact ball bearing and the 4th contact ball bearing away from the inner side of harmonic speed reducer, and the inner ring of described the first contact ball bearing, the second contact ball bearing, the 3rd contact ball bearing, the 4th contact ball bearing is connected with outer ring sleeve with inner ring sleeve respectively with outer ring; The two ends of B axle outer cover are respectively arranged with the first flange and the second flange.
2. precision rotation axle according to claim 1, is characterized in that the large end of main spindle is pressed close in the outside of described flexbile gear, and the inner face of flexbile gear is pressed close to a collar, and screw is fixed on the large end of main spindle through collar and flexbile gear.
3. precision rotation axle according to claim 2, is characterized in that being fixed with inner bearing in the installing hole of described collar, and the axle journal of the large end of axle is fixedly mounted in described inner bearing.
4. precision rotation axle according to claim 1, is characterized in that described wave producer is fixedly connected with axle by flat key.
5. precision rotation axle according to claim 1, is characterized in that being fixed with decelerator end cap on the firm wheel end face of described harmonic speed reducer, in the installing hole of decelerator end cap, is fixed with outer bearing, and axle is arranged on described outer bearing.
6. precision rotation axle according to claim 1, is characterized in that the firm wheel of described harmonic speed reducer is fixed on branch sleeve, and branch sleeve is fixedly connected with the first flange that is fixed on B axle outer cover.
7. precision rotation axle according to claim 1, the below that it is characterized in that ring in described B axle outer cover is provided with the shaft shoulder, the outer ring of the 3rd contact ball bearing abuts against on the shaft shoulder upper surface of ring below in B axle outer cover, and the inner ring of the 3rd contact ball bearing abuts against on snap ring.
8. precision rotation axle according to claim 1, is characterized in that the outer ring of described the first contact ball bearing is near the convex shoulder of the first flange, and the inner ring of the first contact ball bearing is near the shaft shoulder lower surface of the large end of main spindle.
9. precision rotation axle according to claim 1, is characterized in that described the first flange and the second flange are with being provided with O shape rubber seal between main spindle.
10. precision rotation axle according to claim 1, is characterized in that the outer end that described axle is positioned at wave producer is provided with round nut, and described main spindle is positioned at the 3rd contact ball bearing outer end and is provided with circular nut with lock groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531448.7U CN203679294U (en) | 2013-08-29 | 2013-08-29 | Double-mandrel direct-connection precise rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531448.7U CN203679294U (en) | 2013-08-29 | 2013-08-29 | Double-mandrel direct-connection precise rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203679294U true CN203679294U (en) | 2014-07-02 |
Family
ID=51001253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531448.7U Expired - Fee Related CN203679294U (en) | 2013-08-29 | 2013-08-29 | Double-mandrel direct-connection precise rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203679294U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406552A (en) * | 2013-08-29 | 2013-11-27 | 昆山允可精密工业技术有限公司 | Double-mandrel direct-connection precise rotating shaft |
| CN105149620A (en) * | 2015-08-21 | 2015-12-16 | 无锡市三立轴承有限公司 | Main shaft structure for high-precision machine tool |
| CN106392143A (en) * | 2016-12-12 | 2017-02-15 | 鲁东大学 | Clamping mechanism of mechanical main shaft for drilling and tapping center machine tool |
-
2013
- 2013-08-29 CN CN201320531448.7U patent/CN203679294U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406552A (en) * | 2013-08-29 | 2013-11-27 | 昆山允可精密工业技术有限公司 | Double-mandrel direct-connection precise rotating shaft |
| CN105149620A (en) * | 2015-08-21 | 2015-12-16 | 无锡市三立轴承有限公司 | Main shaft structure for high-precision machine tool |
| CN106392143A (en) * | 2016-12-12 | 2017-02-15 | 鲁东大学 | Clamping mechanism of mechanical main shaft for drilling and tapping center machine tool |
| CN106392143B (en) * | 2016-12-12 | 2019-05-17 | 鲁东大学 | A kind of brill attacks center machine tool mechanical main shaft clamping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203679294U (en) | Double-mandrel direct-connection precise rotating shaft | |
| CN202462082U (en) | Nut direct-driven numerical control feeding device | |
| CN205393690U (en) | Gear grinding machine with worm grinding wheel swivel work head | |
| CN103406552A (en) | Double-mandrel direct-connection precise rotating shaft | |
| CN103616747B (en) | Optical fiber slip ring structure for coupling transferring of optical fiber | |
| CN203304574U (en) | Multifunctional built-in dynamic and static pressure electric spindle for efficient high-speed precision machine tool | |
| CN203516746U (en) | High-speed precise rotating shaft adopting high-pressure seal | |
| CN203437997U (en) | Machine tool bearing protective structure | |
| CN203092326U (en) | Precision grinding head | |
| CN202877589U (en) | Multi-angle drilling machining device | |
| CN205572055U (en) | Cam -type annular indexing means | |
| CN204300268U (en) | The main drive nut of ball screw assembly, | |
| CN201334593Y (en) | Rotating shuttle shaft | |
| CN202884445U (en) | Rotary oil way distributor | |
| CN204819139U (en) | Grinding machine quill structure | |
| CN202862426U (en) | Magnetic field rotating mechanism for diamond cutting line production facility | |
| CN201644814U (en) | Main shaft of machine tool | |
| CN206723388U (en) | A kind of gear transmission structure of granulator | |
| CN205817905U (en) | low-load industrial robot joint | |
| CN204524435U (en) | Gear-hobbing machine with damping mechanism and workbench thereof | |
| CN203509759U (en) | Protective structure for machine tool bearing | |
| CN204277614U (en) | Machine spindle transmission mechanism | |
| CN204477078U (en) | A kind of convex surface taper roller bearing | |
| CN204458997U (en) | Hermetically sealed roller ball bearing chain | |
| CN202021346U (en) | Main shaft device with hydrostatic bearings |
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: 20140702 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |