CN101769346A - Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft - Google Patents
Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft Download PDFInfo
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- CN101769346A CN101769346A CN 201010116775 CN201010116775A CN101769346A CN 101769346 A CN101769346 A CN 101769346A CN 201010116775 CN201010116775 CN 201010116775 CN 201010116775 A CN201010116775 A CN 201010116775A CN 101769346 A CN101769346 A CN 101769346A
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- main shaft
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- high speed
- little
- elastic coupling
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Abstract
The invention relates to a miniature elastic coupling for an ultra-high speed and ultraprecise micro main shaft. The miniature elastic coupling comprises a coupling main body, wherein at least one group of microslots is arranged on the coupling main body and comprises two pairs of mutually vertical microslots; and each pair of microslots is perpendicular to an axis of the couping main body and is symmetrically arranged on the coupling main body. The turning motion of the main shaft and torsion are transferred to a cutter or an executing element by utilizing the miniature elastic coupling and a manufacture error, an installation error, a run-out error, and the like of the micro-main shaft are compensated by utilizing at least one group of microslots of the coupling, which are mutually vertically arranged. The invention has simple and reasonable structure, can improve the turning precision of the miniature cutter or other executing elements connected with the ultra-high speed and ultraprecise micro main shaft, is suitable for industrialized application and can be matched with micro main shafts or micromachining cutters in various models.
Description
Technical field
The present invention relates to a kind of miniature elastic coupling, be meant a kind of Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft especially; Belong to the mechanical transmissioning technology field.
Background technique
At present, the ultra-high speed and ultraprecise micro main shaft unit that uses generally is that one is made in power section and main shaft portion both at home and abroad, and with main axle unit and little machining tool or other actuator rigid joint, there is a very big problem in this structure: i.e. the foozle of micro spindle unit, alignment error, runout error etc. can be directly delivered to axle head little machining tool or with other actuator of little main shaft rigid joint, when high speed and ultrahigh speed rotates, error can further be amplified, thereby is difficult to satisfy high-precision revolution requirement under min-cutter or other actuator ultrahigh rotating speed.Many its rotating speed is very high between 200000～500000rpm as the rotating speed of present medical dental drill, but rotating accuracy is low.
Summary of the invention
The objective of the invention is to overcome in the existing ultra-high speed and ultraprecise micro main shaft unit error rigid of transmission and be exaggerated the defective that causes rotating accuracy lower, the Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft that provides a kind of simple and reasonable, zero error to transmit is to satisfy high-precision revolution requirement under the min-cutter that connects with ultra-high speed and ultraprecise micro main shaft or other actuator ultrahigh rotating speed.
For achieving the above object, the present invention adopts following technical proposals: Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft, comprise shaft joint body, described shaft joint body is provided with at least one group of little grooving, described one group of little grooving is made up of two pairs of orthogonal little groovings, described each to little grooving perpendicular to described shaft joint body axis and be symmetricly set on the described shaft joint body.
Among the present invention, described shaft joint body and integrated spindle axis manufacturing.。
Among the present invention, through hole is arranged at described shaft joint body center.
Among the present invention, the width of described each little grooving is: 0.5mm～5mm.
Among the present invention, described each spacing to little grooving is: 0.5mm～10mm.
The present invention is owing to adopt technique scheme, utilize mutual vertically disposed at least one group of little grooving to compensate micron order errors such as the foozle of main shaft, alignment error, runout error, when foozle, alignment error, the runout error of main shaft are delivered on the shaft coupling, resiliently deformable at first takes place in the position that is being provided with little grooving in shaft coupling, and ground, zero clearance transmits rotation motion and moment of torsion to cutter or other actuator.Its concrete compensation principle is summarized as follows:
Referring to accompanying drawing 1, set up system of coordinates, set: X-axis is along the shaft joint body axis, Y-axis is perpendicular to shaft joint body axis (X-axis), the Z axle is perpendicular to X, Y-axis, miniature grooving is along Y-axis and perpendicular to X-axis, then between two groovings, form along X to hinged thin-walled; When the axle of grooving right-hand member during in XY face generation angle and curved (shown in dotted line in the schematic representation), because the resiliently deformable of hinged thin-walled is big, then Zhou bending deflection just is transformed on the hinged thin-walled fully, the axle of having eliminated the grooving right-hand member when the XY face produces small angle variation to the influence of grooving left end shaft, thereby compensated the micro-angular error of axle in the XY plane of grooving right-hand member.In like manner, with this vertical another of grooving then compensated micro-angular error in another vertical plane (being the XZ plane) to grooving.According to the vector compositive relation, these two pairs of groovings just can compensate grooving right-hand member axle along X to being arbitrary micro-angular error on the little axial direction.Coaxality for other actuator of improving little main shaft and little machining tool or connecting with little main shaft can be provided with the little grooving of at least two groups, and two pairs every group little groovings constitute miniature elastic couplings to compensate the error that arbitrary footpath makes progress.In addition, the present invention's miniature elastic coupling main center is set to through hole, has further improved the elastic deformability of shaft joint body at little grooving place, increases the error compensation ability of miniature elastic coupling.
In sum, the present invention is simple and reasonable, can effectively compensate the micron order error such as foozle, alignment error, runout error of little main shaft, and zero clearance ground transmits rotation motion and moment of torsion to cutter or other actuator, the min-cutter that raising connects with ultra-high speed and ultraprecise micro main shaft or the rotating accuracy of other actuator, be suitable for industrial applications, can with the little main shaft or the supporting use of little machining tool of various models.
Description of drawings:
Accompanying drawing 1 is a compensation principle schematic representation of the present invention.
Accompanying drawing 2 is plan views of the present invention.
Accompanying drawing 3 is A-A sectional views of accompanying drawing 2.
Accompanying drawing 4 is B-B sectional views of accompanying drawing 2.
Among the figure: 1--shaft joint body, the horizontal little grooving of 2--, the vertical little grooving of 3--.
Embodiment
Describe in detail below in conjunction with concrete structure embodiment of the present invention and accompanying drawing.
Referring to accompanying drawing 2,3,4, Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft of the present invention, comprise shaft joint body 1, described shaft joint body 1 is provided with two groups of little groovings, described one group of little grooving is made up of two pairs of orthogonal horizontal little groovings 2, vertical little groovings 3, and described horizontal little grooving 2, vertical little grooving 3 all are symmetricly set on the described shaft joint body 1 perpendicular to described shaft joint body 1 axis; Described shaft joint body 1 center is provided with through hole; The width of described horizontal little grooving 2, vertical little grooving 3 is: 0.5mm～5mm; The spacing of described horizontal little grooving 2, vertical little grooving 3 is: 0.5mm～10mm.
Using method of the present invention is sketched in following: an end of the present invention and the little main shaft of power section are made of one, the other end connects with little machining tool or other actuator, utilize structure of the present invention to transmit the rotation motion and the moment of torsion of little main shaft, compensate foozle, alignment error, runout error of little main shaft etc., can effectively improve the min-cutter that connects with ultra-high speed and ultraprecise micro main shaft or the rotating accuracy of other actuator.
Claims (5)
1. Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft, comprise shaft joint body, it is characterized in that: described shaft joint body is provided with at least one group of little grooving, described one group of little grooving is made up of two pairs of orthogonal little groovings, described each to little grooving perpendicular to described shaft joint body axis and be symmetricly set on the described shaft joint body.
2. Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft according to claim 1 is characterized in that: described shaft joint body and integrated spindle axis manufacturing.
3. Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft according to claim 2 is characterized in that: through hole is arranged at described shaft joint body center.
4. Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft according to claim 3 is characterized in that: the width of described each little grooving is: 0.5mm～5mm.
5. Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft according to claim 4 is characterized in that: described each spacing to little grooving is: 0.5mm～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010116775 CN101769346A (en) | 2010-03-03 | 2010-03-03 | Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010116775 CN101769346A (en) | 2010-03-03 | 2010-03-03 | Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101769346A true CN101769346A (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010116775 Pending CN101769346A (en) | 2010-03-03 | 2010-03-03 | Miniature elastic coupling for ultra-high speed and ultraprecise micro main shaft |
Country Status (1)
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| CN (1) | CN101769346A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302316A (en) * | 2013-04-28 | 2013-09-18 | 湖南大学 | High-speed precision pneumatic micro main shaft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3071942A (en) * | 1960-11-09 | 1963-01-08 | Francis A Alcaro | Flexible coupling and method of manufacture |
| US5238454A (en) * | 1991-06-10 | 1993-08-24 | Build-A-Mold Limited | One-piece flexible coupling having a plurality of axially spaced disks |
| US6203437B1 (en) * | 1996-08-30 | 2001-03-20 | Reliance Gear Company Limited | Flexible coupling |
| CN1364675A (en) * | 2002-02-05 | 2002-08-21 | 华中科技大学 | Predicting and compensating control method and device for boring size error |
| CN1673564A (en) * | 2004-03-25 | 2005-09-28 | 三木普利（日本）有限公司 | Flexible shaft coupling |
| CN1749591A (en) * | 2005-10-14 | 2006-03-22 | 华南理工大学 | Integrated assembling free flexible coupling |
-
2010
- 2010-03-03 CN CN 201010116775 patent/CN101769346A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3071942A (en) * | 1960-11-09 | 1963-01-08 | Francis A Alcaro | Flexible coupling and method of manufacture |
| US5238454A (en) * | 1991-06-10 | 1993-08-24 | Build-A-Mold Limited | One-piece flexible coupling having a plurality of axially spaced disks |
| US6203437B1 (en) * | 1996-08-30 | 2001-03-20 | Reliance Gear Company Limited | Flexible coupling |
| CN1364675A (en) * | 2002-02-05 | 2002-08-21 | 华中科技大学 | Predicting and compensating control method and device for boring size error |
| CN1673564A (en) * | 2004-03-25 | 2005-09-28 | 三木普利（日本）有限公司 | Flexible shaft coupling |
| CN1749591A (en) * | 2005-10-14 | 2006-03-22 | 华南理工大学 | Integrated assembling free flexible coupling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302316A (en) * | 2013-04-28 | 2013-09-18 | 湖南大学 | High-speed precision pneumatic micro main shaft |
| CN103302316B (en) * | 2013-04-28 | 2015-09-23 | 湖南大学 | High speed and precision pneumatic micro spindle |
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Application publication date: 20100707 |