CN103317154A - High-accuracy spindle system - Google Patents
High-accuracy spindle system Download PDFInfo
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- CN103317154A CN103317154A CN2013102067196A CN201310206719A CN103317154A CN 103317154 A CN103317154 A CN 103317154A CN 2013102067196 A CN2013102067196 A CN 2013102067196A CN 201310206719 A CN201310206719 A CN 201310206719A CN 103317154 A CN103317154 A CN 103317154A
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- main shaft
- retainer
- fixed cover
- array
- hole
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Abstract
The invention relates to the technical field of photoelectric measurement and particularly relates to a high-accuracy spindle system which comprises a motor, a base and a spindle arranged on the base. The spindle is arranged on the base through a retainer, a fixing sleeve is further arranged between the spindle and the retainer, a plurality of groups of through holes are formed in the fixing sleeve, and a plurality of balls are correspondingly arranged in the through holes. The high-accuracy spindle system effectively reduces friction between the spindle and the retainer, reduces friction among the balls, is low in repeatability errors, and has the advantages of being stable during rotation of the spindle, large in supporting capacity and accurate in eccentric error measuring during rotation of the spindle and enabling cutters on a cutter disc to be convenient to adjust.
Description
Technical field
The present invention relates to the photoelectric measurement technical field, specifically a kind of high-precision main shaft system.
Background technology
Gear is the mechanical organ that the continuous engaged transmission motion of tooth energy and power are arranged on a kind of wheel rim, in the process of gear, plurality of cutter need to be fixed on the cutterhead, after cutterhead is adjusted the tool position, flitch is processed into gear, especially, in the process of automobile gear, required precision to gear is very high, and automobile gear processing need to be fixed on cutterhead on the main shaft usually and rotary main shaft is measured the position of cutter, main shaft and be used for that long-term friction causes the axis system poor repeatability between the retainer of fixed main shaft, and along with equipment constantly uses, repeatability error also can constantly increase, and also can cause the large shortcoming of axis system eccentric error.
Summary of the invention
For above-mentioned weak point of the prior art, the present invention aims to provide the high-precision main shaft system that a kind of repeatability is better, certainty of measurement is higher.
For solving the problems of the technologies described above, high-precision main shaft of the present invention system, it comprises motor, pedestal and is arranged at main shaft on the described pedestal, main shaft is arranged on the pedestal by retainer, also be provided with fixed cover between main shaft and the retainer, be provided with the array through hole on the described fixed cover, correspondence is provided with the array ball in this array through hole.
Concrete, described main shaft is provided with measurement mechanism on the one end end, and the main shaft other end is provided with dividing head on the end.
Described measurement mechanism comprises fixed disc, circle grating, is arranged at locational two read heads of fixed disc diameter, and the circle grating is arranged at the spindle nose outside.
Described retainer comprises the first retainer that arranges near dividing head and the second retainer that arranges near measurement mechanism, and described fixed cover comprises and is arranged at the first fixed cover between the first retainer and the main shaft and is arranged at the second fixed cover between the second retainer and the main shaft.
Described fixed cover is column type, and the array through hole is uniformly distributed on the fixed cover face of cylinder, and every group of arrays of openings becomes two centrosymmetric diamond structures.
The ball diameter that the corresponding ball diameter that arranges arranges greater than correspondence in the second fixed cover array through hole in the array through hole on described the first fixed cover.
Described motor is direct driving motor.
Described alignment of shafts position has a column type cavity.
High-precision main shaft of the present invention system, owing between main shaft and retainer, also being provided with fixed cover and fixed cover is provided with the array through hole, correspondence is provided with the array ball in the array through hole, rub so when main shaft rotates, not only effectively reduce between main shaft and the retainer, and reduced friction between ball and the ball, make the repeatability error of high-precision main shaft system less, the array through hole is uniformly distributed on the fixed cover face of cylinder, every group of arrays of openings is more steady when becoming two centrosymmetric diamond structures to guarantee especially the main shaft rotation, the ball diameter that correspondence arranges in the array through hole on the first fixed cover has guaranteed not only that greater than the corresponding ball diameter that arranges in the second fixed cover array through hole high-precision main shaft system supporting power is large, and repeatability error is less, the eccentric error when the present invention can also effectively measure the main shaft rotation in addition, cutterhead fix a cutting tool regulate convenient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the cross-sectional view of high-precision main shaft of the present invention system;
Fig. 2 is the structural representation of fixed cover in the high-precision main shaft of the present invention system;
Fig. 3 is the FAST plot of fixed cover in the high-precision main shaft of the present invention system;
Fig. 4 is the perspective view of high-precision main shaft imitation-system measuring apparatus face of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Such as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, high-precision main shaft of the present invention system, can comprise motor 1, pedestal 2 and be arranged at main shaft 3 on the described pedestal 2, main shaft 3 is arranged on the pedestal 2 by retainer, also be provided with fixed cover 4 between main shaft 3 and the retainer, be provided with array through hole 5 on the described fixed cover 4, these array through hole 5 interior correspondences are provided with the array ball.The present invention not only effectively reduces between main shaft 3 and the retainer when main shaft 3 rotates and rubs, and has reduced the friction between ball and the ball, has effectively prolonged the service life of main shaft 3, makes the repeatability error of high-precision main shaft system less.
Concrete, described main shaft is provided with measurement mechanism on the 3 one end ends, and main shaft is provided with dividing head 6 on 3 other end ends.Measurement mechanism is used for measuring the eccentric error that produces when main shaft 3 turns an angle, and dividing head 6 is used for fixation cutter head, not only can accurately locate the cutter on the cutterhead, and convenient the adjusting.
Described measurement mechanism comprises fixed disc 7, circle grating 8, is arranged at locational two read heads 9 of fixed disc 7 diameters, and circle grating 8 is arranged at the outside, main shaft 3 ends.The data that read head in the measurement mechanism is measured are A, and the data that another read head is read are B, and measurement result represents with C, so C=(A+B)/2, the eccentric error of 0.5 times of axis system can have been reduced.
Described retainer comprises the first retainer 10 that arranges near dividing head 6 and the second retainer 11 that arranges near measurement mechanism, and described fixed cover 4 comprises and is arranged at the first fixed cover 12 between the first retainer 10 and the main shaft 3 and is arranged at the second fixed cover 13 between the second retainer 11 and the main shaft 3.
Described fixed cover 4 is column type, and array through hole 5 is uniformly distributed on fixed cover 4 faces of cylinder, and every group of through hole 5 is arranged in two centrosymmetric diamond structures.Array through hole 5 is arranged in centrosymmetric diamond structure and has effectively guaranteed when main shaft 3 rotates more steady.
The ball diameter that the corresponding ball diameter that arranges arranges greater than correspondence in the second fixed cover 13 array through holes in the array through hole on described the first fixed cover 12.Guaranteed that not only high-precision main shaft system supporting power is large, and repeatability error is less.
Described motor 1 is direct driving motor.Avoid using the drive apparatus such as driving belt, can increase the system failure because these equipment use, so adopt direct driving motor to effectively reduce fault rate.
Described main shaft 3 centers have a column type cavity 14.Reduce the quality of system, reduced the use of material, reduced production cost.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. high-precision main shaft system, it is characterized in that: comprise motor (1), pedestal (2) and be arranged at main shaft (3) on the described pedestal (2), main shaft (3) is arranged on the pedestal (2) by retainer, also be provided with fixed cover (4) between main shaft (3) and the retainer, be provided with array through hole (5) on the described fixed cover (4), the interior correspondence of this array through hole (5) is provided with the array ball.
2. high-precision main shaft according to claim 1 system, it is characterized in that: described main shaft is provided with measurement mechanism on (3) the one end ends, and main shaft (3) is provided with dividing head (6) on the other end end.
3. high-precision main shaft according to claim 2 system, it is characterized in that: described measurement mechanism comprises fixed disc (7), circle grating (8), is arranged at fixed disc (7) locational two read heads of diameter (9), and circle grating (8) is arranged at the outside, main shaft (3) end.
4. high-precision main shaft according to claim 2 system, it is characterized in that: described retainer comprises the first retainer (10) that arranges near dividing head (6) and the second retainer (11) that arranges near measurement mechanism, described fixed cover comprise be arranged at the first fixed cover (12) between the first retainer (10) and the main shaft (3) and be arranged at the second retainer (11) and main shaft (3) between the second fixed cover (13).
5. high-precision main shaft according to claim 4 system, it is characterized in that: described fixed cover (4) is column type, and array through hole (5) is uniformly distributed on fixed cover (4) face of cylinder, and every group of through hole (5) is arranged in two centrosymmetric diamond structures.
6. high-precision main shaft according to claim 4 system, it is characterized in that: the corresponding ball diameter that arranges is greater than the corresponding ball diameter that arranges in the second fixed cover (13) array through hole in the upper array through hole of described the first fixed cover (12).
7. high-precision main shaft according to claim 1 system, it is characterized in that: described motor (1) is direct driving motor.
8. high-precision main shaft according to claim 1 system, it is characterized in that: described main shaft (3) center has a column type cavity (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206719.6A CN103317154B (en) | 2013-05-29 | 2013-05-29 | High-precision main shaft system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310206719.6A CN103317154B (en) | 2013-05-29 | 2013-05-29 | High-precision main shaft system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103317154A true CN103317154A (en) | 2013-09-25 |
| CN103317154B CN103317154B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310206719.6A Active CN103317154B (en) | 2013-05-29 | 2013-05-29 | High-precision main shaft system |
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| CN (1) | CN103317154B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1570056A (en) * | 1922-07-08 | 1926-01-19 | Fritz Lewis | Bearing |
| CN2430569Y (en) * | 2000-06-20 | 2001-05-16 | 朱恩德 | Complex screw bearing steel ball sleeve |
| CN2829971Y (en) * | 2005-10-27 | 2006-10-25 | 飞浦实业股份有限公司 | Driving gear of direct conjunction main shaft |
| CN101133255A (en) * | 2005-03-04 | 2008-02-27 | 谢夫勒两合公司 | High-speed movable bearing in particular for the mounting of a main spindle of a machine tool |
| CN101608933A (en) * | 2009-07-10 | 2009-12-23 | 贵阳新天光电科技有限公司 | High-precision angular indexing dynamic measuring spindle system |
| CN201702385U (en) * | 2010-04-06 | 2011-01-12 | 哈尔滨量具刃具集团有限责任公司 | Shockproof dense ball static-pressure ratio control mixed bearing |
| CN202199874U (en) * | 2011-05-13 | 2012-04-25 | 北京市电加工研究所 | Precision numerical control indexing rotating shaft for electric discharge machining |
| CN202317043U (en) * | 2011-11-15 | 2012-07-11 | 天津精诚机床股份有限公司 | Workpiece box for finishing machine of numerical control gear-broach machine |
| CN202356640U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Close coupled ball spindle of high-speed machine tool |
| CN102672537A (en) * | 2012-05-23 | 2012-09-19 | 北京理工大学 | Precise shafting circular grating optical indexing method |
| CN103042238A (en) * | 2012-12-29 | 2013-04-17 | 广州市昊志机电股份有限公司 | High-speed direct spindle |
| CN203304576U (en) * | 2013-05-29 | 2013-11-27 | 贵阳新天光电科技有限公司 | High-accuracy spindle system |
-
2013
- 2013-05-29 CN CN201310206719.6A patent/CN103317154B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1570056A (en) * | 1922-07-08 | 1926-01-19 | Fritz Lewis | Bearing |
| CN2430569Y (en) * | 2000-06-20 | 2001-05-16 | 朱恩德 | Complex screw bearing steel ball sleeve |
| CN101133255A (en) * | 2005-03-04 | 2008-02-27 | 谢夫勒两合公司 | High-speed movable bearing in particular for the mounting of a main spindle of a machine tool |
| CN2829971Y (en) * | 2005-10-27 | 2006-10-25 | 飞浦实业股份有限公司 | Driving gear of direct conjunction main shaft |
| CN101608933A (en) * | 2009-07-10 | 2009-12-23 | 贵阳新天光电科技有限公司 | High-precision angular indexing dynamic measuring spindle system |
| CN201702385U (en) * | 2010-04-06 | 2011-01-12 | 哈尔滨量具刃具集团有限责任公司 | Shockproof dense ball static-pressure ratio control mixed bearing |
| CN202199874U (en) * | 2011-05-13 | 2012-04-25 | 北京市电加工研究所 | Precision numerical control indexing rotating shaft for electric discharge machining |
| CN202317043U (en) * | 2011-11-15 | 2012-07-11 | 天津精诚机床股份有限公司 | Workpiece box for finishing machine of numerical control gear-broach machine |
| CN202356640U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Close coupled ball spindle of high-speed machine tool |
| CN102672537A (en) * | 2012-05-23 | 2012-09-19 | 北京理工大学 | Precise shafting circular grating optical indexing method |
| CN103042238A (en) * | 2012-12-29 | 2013-04-17 | 广州市昊志机电股份有限公司 | High-speed direct spindle |
| CN203304576U (en) * | 2013-05-29 | 2013-11-27 | 贵阳新天光电科技有限公司 | High-accuracy spindle system |
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| Publication number | Publication date |
|---|---|
| CN103317154B (en) | 2016-05-18 |
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