CN209830882U - Air floatation guide rail with ultra-precise dovetail groove configuration - Google Patents
Air floatation guide rail with ultra-precise dovetail groove configuration Download PDFInfo
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- CN209830882U CN209830882U CN201920695906.8U CN201920695906U CN209830882U CN 209830882 U CN209830882 U CN 209830882U CN 201920695906 U CN201920695906 U CN 201920695906U CN 209830882 U CN209830882 U CN 209830882U
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- guide rail
- slide carriage
- dovetail groove
- carriage
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Abstract
The utility model relates to an air-float guide rail with ultra-precise dovetail groove configuration, which comprises a guide rail body, a linear motor and a slide carriage, wherein the section of the guide rail body is in a dovetail groove shape; the slide carriage comprises an upper slide carriage and two side slide carriages, two ends of the upper slide carriage are respectively connected with the two side slide carriages, an upper throttling device is arranged in the upper slide carriage, and a side throttling device is arranged in the side slide carriage; the upper slide carriage and the two side slide carriages form a dovetail groove type accommodating space, and the guide rail body is arranged in the accommodating space; the linear motor comprises a stator and a rotor, the stator of the linear motor is fixed in the guide rail body through a stator connecting seat, and the rotor is connected in the upper slide carriage through a rotor fixing plate. The utility model discloses an air supporting guide rail adopts dovetail guide rail to compare in traditional rectangle closed guide rail, has reduced two lower carriage apron, has effectively reduced guide rail system's height and moving mass, helps reducing the geometric error who arouses by inertia, helps improving the dynamic response of system simultaneously, is applicable to the servo processing of sword slowly.
Description
Technical Field
The utility model relates to the field of precision machinery, especially, relate to an air supporting guide rail of ultra-precision dovetail configuration.
Background
The modern industry has higher and higher requirements on product quality, the ultra-precision machining technology is the development direction of the modern manufacturing technology, the ultra-precision machining tool is important machining equipment of the modern industry, guide rails in the machine tool are widely used gas guide rails, and the gas guide rails are low in friction coefficient and high in motion precision and are key devices in the ultra-precision machine tool. The problems of low bearing capacity, high machining precision requirement, small rigidity and the like of the air floatation guide rail are the key to be solved at present, and the reasonable design of a guide rail structure, a driving system and the like is a research direction form of many experts and scholars and is beneficial to improving the comprehensive performance of the air floatation guide rail.
SUMMERY OF THE UTILITY MODEL
For solving current technical problem, the utility model provides an air supporting guide rail of ultra-precision dovetail configuration, reduce the frictional force between guide rail and swift current board, when improving linear motion precision geometry, reduce the processing cost, reduce the assembly degree of difficulty, improve equipment's reliability and security, adopt dovetail type guide rail to compare in traditional rectangle closed guide rail simultaneously, two lower swift current boards have been reduced, the height and the moving mass of guide rail system have effectively been reduced, help reducing the geometric error who arouses by inertia, help improving system's dynamic response simultaneously, be applicable to the servo processing of sword slowly.
The specific contents of the utility model are as follows: an air floatation guide rail with an ultra-precise dovetail groove structure comprises a guide rail body, a linear motor and a slide carriage, wherein the section of the guide rail body is in a dovetail groove shape; the slide carriage comprises an upper slide carriage and two side slide carriages, two ends of the upper slide carriage are respectively connected with the two side slide carriages, an upper throttling device is arranged in the upper slide carriage, and a side throttling device is arranged in the side slide carriage; the upper slide carriage and the two side slide carriages form a dovetail groove type accommodating space, and the guide rail body is arranged in the accommodating space; the linear motor comprises a stator and a rotor, the stator of the linear motor is fixed in the guide rail body through a stator connecting seat, and the rotor is connected in the upper slide carriage through a rotor fixing plate.
The guide rail body is designed in a dovetail groove configuration mode, so that the linear motion precision geometric dimension is improved, the processing cost is reduced, the assembly difficulty is reduced, and the rigidity is high; when the upper throttle and the side throttle are introduced with air, the air is introduced from the air outlet, an air film is formed between the slide carriage and the guide rail body, the slide carriage and the guide rail body are not in contact, the friction force is close to zero during sliding, the guide rail is ensured to have a smooth sliding effect, and the positioning precision and the speed stability are improved.
Furthermore, a guide rail groove is formed in the upper end of the guide rail body, the stator connecting seat is fixed inside the guide rail groove, and a stator of the linear motor is fixed on the stator connecting seat; the upper end of the rotor fixing plate is fixed with the lower end face of the upper slide carriage, and the rotor of the linear motor is fixed on the rotor fixing plate.
Furthermore, the bottom of the upper slide carriage is provided with an upper slide carriage groove at a position corresponding to the guide rail groove, and the rotor fixing plate is arranged on the bottom wall of the upper slide carriage groove.
Furthermore, the section of the upper slide carriage is rectangular, the section of the side slide carriage is in a right trapezoid shape, and the side edge of the upper slide carriage is flush with the side edge of the side slide carriage; the inclined plane of the side slide carriage is parallel to the inclined plane of the guide rail body.
Furthermore, the bottom of the side slide carriage is flush with the bottom surface of the guide rail body.
Further, the air outlet of the upper throttle is arranged in the inner space of the upper slide carriage, and the air outlet of the upper throttle is vertical to the lower surface of the upper slide carriage; and the air outlet hole of the side restrictor is arranged in the inner space of the side slide carriage, and the air outlet hole of the side restrictor is vertical to the inclined plane of the side slide carriage.
Further, the forms of the upper restrictor and the side restrictor comprise one or more of small hole throttling, annular throttling, slit throttling, porous throttling and capillary throttling.
The utility model has the advantages that: after the structure is adopted, the slide carriage is not in contact with the guide rail body, the friction force is close to zero during sliding, the guide rail is ensured to have smooth sliding effect, and the positioning precision and the speed stability are improved; the guide rail body and the slide carriage are designed by a dovetail groove-like structure, so that the overall height is reduced, the processing cost is saved, the bearing capacity of the guide rail is improved, and the air floatation guide rail has high rigidity; the slide carriage is directly driven by the linear motor, the rotor of the motor is directly and fixedly connected with the slide carriage, and no transmission element is arranged between the stator and the rotor of the linear motor, so that the friction force generated by the transmission element is saved, and the movement precision of the air floatation guide rail is greatly improved; the static pressure air film has a homogenization function, and the guide rail can do linear motion with ultra-precision; the utility model discloses simple structure, the use accuracy is high, can adjust according to the equipment demand of difference.
Drawings
The following further explains the embodiments of the present invention with reference to the drawings.
Fig. 1 is a cross-sectional view of the overall structure of the air-floating guide rail with ultra-precise dovetail groove configuration of the present invention.
Detailed Description
As shown in fig. 1, the dovetail groove-shaped air-floating guide rail of the present invention is composed of a guide rail body 1, a stator connecting seat 2, an upper slide carriage 3, a side slide carriage 7, a linear motor stator 4, a rotor 5, and a rotor fixing plate 6. The linear motor is composed of a stator 4 and a rotor 5, the whole slide carriage is composed of an upper slide carriage 3 and two side slide carriages 7, two ends of the upper slide carriage 3 are fixedly connected with the two side slide carriages 7 respectively, the upper slide carriage 3 and the two side slide carriages 7 form a dovetail groove structure, and the guide rail body 1 penetrates through the inner space of the dovetail groove type slide carriages. The upper end of the guide rail body 1 is provided with a guide rail groove, and the linear motor is arranged in the guide rail groove. Stator 4 is connected on stator connecting seat 2, and stator connecting seat 2 is fixed on the guide rail body 1 in the guide rail recess, and the upper end of active cell fixed plate 6 is connected with the lower terminal surface of last carriage apron 3, goes up carriage apron 3 and is equipped with throttle 8 on the guide rail body 1 department of corresponding, is equipped with side throttle 9 on two inclined planes of side carriage apron 7 respectively. The utility model discloses a linear electric motor is as drive element, and linear electric motor's active cell 5 is direct and the carriage apron meshing constitutes a nearly zero fricative guide rail.
In the preferred embodiment, the bottom of the upper slide carriage 3 is provided with an upper slide carriage groove at a position corresponding to the guide rail groove, and the rotor fixing plate 6 is arranged on the bottom wall of the upper slide carriage groove. The section of the upper slide carriage 3 is rectangular, the section of the side slide carriage 7 is in a right trapezoid shape, and the side edge of the upper slide carriage 3 is flush with the side edge of the side slide carriage 7; the inclined plane of the side slide carriage 7 is parallel to the inclined plane of the guide rail body 1, and the bottom of the side slide carriage 7 is flush with the bottom surface of the guide rail body 1. The air outlet of the upper throttle 8 is arranged in the inner space of the upper slide carriage 3, and the air outlet of the upper throttle 8 is vertical to the lower surface of the upper slide carriage 3; the air outlet hole of the side restrictor 9 is arranged in the inner space of the side slide carriage 7, and the air outlet hole of the side restrictor 9 is vertical to the inclined plane of the side slide carriage 7. The forms of the upper restrictor 8 and the side restrictor 9 include one or more of orifice restriction, annulus restriction, slit restriction, porous restriction, capillary restriction.
Compressed air is introduced into the upper throttle 8, a static pressure air film A is formed between the upper slide carriage 3 and the guide rail body 1, compressed air is introduced into the side throttle 9, a static pressure air film B is formed between the side slide carriage 7 and the guide rail body 1, the whole slide carriage is supported and suspended on the guide rail body 1 by the air film A, B, the slide carriage is separated from the guide rail body 1 by the air film, the geometric errors of the slide carriage and the guide rail body 1 are homogenized, the geometric errors of the slide carriage and the guide rail body 1 can not be directly reflected to the geometric motion of the guide rail system, and the linear motion precision of the guide rail is greatly improved. The guide rail body 1 is designed in a dovetail groove configuration mode, so that the appearance volume of the guide rail is reduced, the processing cost is saved, the overall height and width are reduced, and the bearing capacity of the guide rail is improved. The utility model discloses a linear electric motor drive carriage apron does not have middle transmission system to produce frictional force, has realized nearly zero friction drive's guide rail system like this.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. An air supporting guide rail of ultra-precision dovetail groove configuration which characterized in that: the guide rail comprises a guide rail body, a linear motor and a slide carriage, wherein the section of the guide rail body is in a dovetail groove shape; the slide carriage comprises an upper slide carriage and two side slide carriages, two ends of the upper slide carriage are respectively connected with the two side slide carriages, an upper throttling device is arranged in the upper slide carriage, and a side throttling device is arranged in the side slide carriage; the upper slide carriage and the two side slide carriages form a dovetail groove type accommodating space, and the guide rail body is arranged in the accommodating space; the linear motor comprises a stator and a rotor, the stator of the linear motor is fixed in the guide rail body through a stator connecting seat, and the rotor is connected in the upper slide carriage through a rotor fixing plate.
2. The air bearing guide rail with the ultra-precise dovetail groove configuration as claimed in claim 1, wherein: the upper end of the guide rail body is provided with a guide rail groove, the stator connecting seat is fixed inside the guide rail groove, and the stator of the linear motor is fixed on the stator connecting seat; the upper end of the rotor fixing plate is fixed with the lower end face of the upper slide carriage, and the rotor of the linear motor is fixed on the rotor fixing plate.
3. The air rail in ultra-precise dovetail groove configuration as claimed in claim 2, wherein: the bottom of going up the carriage apron is equipped with the carriage apron recess in the position that the guide rail recess corresponds, the active cell fixed plate sets up on the diapire of last carriage apron recess.
4. The air bearing guide rail with the ultra-precise dovetail groove configuration as claimed in claim 1, wherein: the section of the upper slide carriage is rectangular, the section of the side slide carriage is in a right trapezoid shape, and the side edge of the upper slide carriage is flush with the side edge of the side slide carriage; the inclined plane of the side slide carriage is parallel to the inclined plane of the guide rail body.
5. The air bearing guide rail with the ultra-precise dovetail groove configuration as claimed in claim 1, wherein: the bottom of the side slide carriage is flush with the bottom surface of the guide rail body.
6. The air bearing guide rail with the ultra-precise dovetail groove configuration as claimed in claim 1, wherein: the air outlet of the upper throttle is arranged in the inner space of the upper slide carriage, and the air outlet of the upper throttle is vertical to the lower surface of the upper slide carriage; and the air outlet hole of the side restrictor is arranged in the inner space of the side slide carriage, and the air outlet hole of the side restrictor is vertical to the inclined plane of the side slide carriage.
7. The air bearing guide rail with the ultra-precise dovetail groove configuration as claimed in claim 1, wherein: the forms of the upper restrictor and the side restrictor comprise one or more of small hole throttling, annular surface throttling, slit throttling, porous throttling and capillary throttling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920695906.8U CN209830882U (en) | 2019-05-15 | 2019-05-15 | Air floatation guide rail with ultra-precise dovetail groove configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920695906.8U CN209830882U (en) | 2019-05-15 | 2019-05-15 | Air floatation guide rail with ultra-precise dovetail groove configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209830882U true CN209830882U (en) | 2019-12-24 |
Family
ID=68897163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920695906.8U Expired - Fee Related CN209830882U (en) | 2019-05-15 | 2019-05-15 | Air floatation guide rail with ultra-precise dovetail groove configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209830882U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968049A (en) * | 2019-05-15 | 2019-07-05 | 南京艾提瑞精密机械有限公司 | A kind of air-float guide rail of ultraprecise dovetail groove configuration |
| JP7437082B1 (en) | 2022-10-19 | 2024-02-22 | 東佑達奈米系統股▲ふん▼有限公司 | Air levitation guide rail device |
-
2019
- 2019-05-15 CN CN201920695906.8U patent/CN209830882U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968049A (en) * | 2019-05-15 | 2019-07-05 | 南京艾提瑞精密机械有限公司 | A kind of air-float guide rail of ultraprecise dovetail groove configuration |
| JP7437082B1 (en) | 2022-10-19 | 2024-02-22 | 東佑達奈米系統股▲ふん▼有限公司 | Air levitation guide rail device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211227 Address after: 215300 room 301-h, 3rd floor, science and Technology Plaza building, Qianjin East Road, Kunshan Development Zone, Suzhou, Jiangsu Patentee after: Suzhou zhirun Precision Technology Co.,Ltd. Address before: 211316 1 1 of ancient Tan Road, Gaochun Economic Development Zone, Nanjing, Jiangsu. Patentee before: NANJING AITIRUI PRECISION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |