CN105549638A - High-precision rapid displacement platform realized based on stepping motor - Google Patents
High-precision rapid displacement platform realized based on stepping motor Download PDFInfo
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- CN105549638A CN105549638A CN201510974461.3A CN201510974461A CN105549638A CN 105549638 A CN105549638 A CN 105549638A CN 201510974461 A CN201510974461 A CN 201510974461A CN 105549638 A CN105549638 A CN 105549638A
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- platform
- stepper motor
- grating scale
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Stepping Motors (AREA)
Abstract
The invention relates to a high-precision rapid displacement platform realized based on a stepping motor. The platform comprises a platform controller, a platform mechanism, a stepping motor, a grating scale and a power supply. The platform controller is connected to the stepping motor and the grating scale respectively. The grating scale, the platform mechanism and the stepping motor are successively connected. The power supply can provide power for the platform controller and the stepping motor. By using the high-precision rapid displacement platform realized based on the stepping motor, accurate positioning can be achieved; a position feedback component grating scale is added on a structure aspect and is cooperated with a stepping control mode, and then backlash and accumulative error influences can be eliminated; and accurate positioning of any position in a line is realized.
Description
Technical field
The invention belongs to control technology field, relate to a kind of high precision fast offset platform realized based on stepper motor.
Background technology
Traditional precisely locating platform adopts stepper motor Direct driver platform mechanism as shown in Figure 1, does not have location feedback value.According to frequency and the number of pulse signal, the rotating speed of stepper motor and angular displacement are controlled, realize the target of location.Advantage is that structure is simple, but has gap due to platform mechanism gear, and can produce cumulative errors during to-and-fro movement, stepper motor exists backlash phenomenon, so there is comparatively big error simultaneously.
Summary of the invention
The present invention will solve technical matters of the prior art, provides a kind of high precision fast offset platform realized based on stepper motor.
In order to solve the problems of the technologies described above, technical scheme of the present invention is specific as follows:
Based on the high precision fast offset platform that stepper motor realizes, comprising: platform controller, platform mechanism, stepper motor, grating scale, and power supply; Described platform controller is connected with grating scale with stepper motor respectively; Described grating scale, platform mechanism, stepper motor is connected successively; Described power supply can be powered to platform controller and stepper motor;
Described platform controller comprises: single-chip microcomputer, communication interface chip and motor driver; Described single-chip microcomputer receives control command, the feedback platform duty of host computer by serial communication interface; Described communication interface chip reads grating scale data by bus interface, obtains position of platform information; Described motor driver can according to the motion of host computer order-driven stepper motor.
In technique scheme, the screw travel of described platform mechanism is 60mm, and positioning precision is less than 0.005mm.
In technique scheme, when described stepper motor step angle is 1.8 °, often walk rectilinear motion 20 μm, during four segmentations, every moved further amount is 5 μm.
In technique scheme, described stepper motor is 14HYB401-03 current mode stepper motor.
In technique scheme, described grating scale is the RELA absolute type linear grating chi of RENISHAW company, and power supply is 5 × (1 ± 10%) V, and precision is 1 μm.
The present invention has following beneficial effect:
The high precision fast offset platform realized based on stepper motor of the present invention, accurately can locate, structurally add position feedback elements grating scale, after coordinating step motion control mode, the impact of backlash and cumulative errors can be eliminated, realize the accurate location of optional position on straight line.
The high precision fast offset platform realized based on stepper motor of the present invention, platform controller, grating scale, stepper motor, platform mechanism is integrated, become a set of can pinpoint displacement platform.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the structural representation of traditional displacement platform.
Fig. 2 is the structural representation of the high precision fast offset platform based on stepper motor realization of the present invention.
Fig. 3 is the controller architecture schematic diagram of the high precision fast offset platform based on stepper motor realization of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figures 2 and 3, a kind of high precision fast offset platform realized based on stepper motor, comprising:
Platform controller: be made up of single-chip microcomputer, communication interface chip and motor driver.Single-chip microcomputer receives control command, the feedback platform duty of host computer by serial communication interface; Read grating scale data by bus interface, obtain position of platform information; And according to the motion of host computer order-driven stepper motor.
Platform mechanism: screw travel is 60mm, and positioning precision is less than 0.005mm, during stepper motor step angle 1.8 °, often walk rectilinear motion 20 μm, during four segmentations, every moved further amount is 5 μm;
Stepper motor: select 14HYB401-03 current mode stepper motor, step angle 1.8 °, phase current 1.0A.
Grating scale: the RELA absolute type linear grating chi using RENISHAW company, power supply 5 × (1 ± 10%) V, precision 1 μm;
Power supply: 5V Switching Power Supply is powered to platform controller; 24V Switching Power Supply is powered to stepper motor;
Cable and other annexes.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (5)
1., based on the high precision fast offset platform that stepper motor realizes, it is characterized in that, comprising: platform controller, platform mechanism, stepper motor, grating scale, and power supply; Described platform controller is connected with grating scale with stepper motor respectively; Described grating scale, platform mechanism, stepper motor is connected successively; Described power supply can be powered to platform controller and stepper motor;
Described platform controller comprises: single-chip microcomputer, communication interface chip and motor driver; Described single-chip microcomputer receives control command, the feedback platform duty of host computer by serial communication interface; Described communication interface chip reads grating scale data by bus interface, obtains position of platform information; Described motor driver can according to the motion of host computer order-driven stepper motor.
2. the high precision fast offset platform realized based on stepper motor according to claim 1, it is characterized in that, the screw travel of described platform mechanism is 60mm, and positioning precision is less than 0.005mm.
3. the high precision fast offset platform realized based on stepper motor according to claim 1, is characterized in that, when described stepper motor step angle is 1.8 °, often walk rectilinear motion 20 μm, during four segmentations, every moved further amount is 5 μm.
4. the high precision fast offset platform realized based on stepper motor according to claim 1, it is characterized in that, described stepper motor is 14HYB401-03 current mode stepper motor.
5. the high precision fast offset platform realized based on stepper motor according to claim 1, it is characterized in that, described grating scale is the RELA absolute type linear grating chi of RENISHAW company, and power supply is 5 × (1 ± 10%) V, and precision is 1 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974461.3A CN105549638A (en) | 2015-12-23 | 2015-12-23 | High-precision rapid displacement platform realized based on stepping motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510974461.3A CN105549638A (en) | 2015-12-23 | 2015-12-23 | High-precision rapid displacement platform realized based on stepping motor |
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| CN105549638A true CN105549638A (en) | 2016-05-04 |
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| CN201510974461.3A Pending CN105549638A (en) | 2015-12-23 | 2015-12-23 | High-precision rapid displacement platform realized based on stepping motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461580A (en) * | 2017-08-31 | 2017-12-12 | 中国科学院光电技术研究所 | A kind of high accuracy, high capacity straight-line displacement platform |
| CN109254376A (en) * | 2018-10-22 | 2019-01-22 | 哈尔滨工业大学 | A kind of special type lens dead axle stage apparatus |
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| US5455495A (en) * | 1992-03-24 | 1995-10-03 | Art Tech Gigadisc "Atg" | Control device for servocontrolling an object to a given position |
| JPH08140381A (en) * | 1994-11-11 | 1996-05-31 | Sumitomo Electric Ind Ltd | Servo controller for motor and control method |
| CN2859607Y (en) * | 2006-01-12 | 2007-01-17 | 中国科学院长春光学精密机械与物理研究所 | Feedback signal counter for grating encoder |
| CN201353688Y (en) * | 2008-12-30 | 2009-12-02 | 武汉楚天激光（集团）股份有限公司 | High-precision two-dimensional movement work platform control system for laser film engraving |
| CN201711630U (en) * | 2010-07-09 | 2011-01-19 | 蔡永一 | Precision adjusting system for linear cutting lathe |
| CN202710579U (en) * | 2012-05-30 | 2013-01-30 | 苏州生物医学工程技术研究所 | Automatic sample loading positioning and controlling system of sample disc |
| CN104124852A (en) * | 2014-07-01 | 2014-10-29 | 上海福讯光电有限公司 | Linear motor system and control method thereof as well as photoetching machine applying linear motor system |
| CN104372289A (en) * | 2013-08-15 | 2015-02-25 | 昆山思拓机器有限公司 | Position adjusting mechanism for stretching-flattening of OLED metal mask plate |
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2015
- 2015-12-23 CN CN201510974461.3A patent/CN105549638A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455495A (en) * | 1992-03-24 | 1995-10-03 | Art Tech Gigadisc "Atg" | Control device for servocontrolling an object to a given position |
| JPH08140381A (en) * | 1994-11-11 | 1996-05-31 | Sumitomo Electric Ind Ltd | Servo controller for motor and control method |
| CN2859607Y (en) * | 2006-01-12 | 2007-01-17 | 中国科学院长春光学精密机械与物理研究所 | Feedback signal counter for grating encoder |
| CN201353688Y (en) * | 2008-12-30 | 2009-12-02 | 武汉楚天激光（集团）股份有限公司 | High-precision two-dimensional movement work platform control system for laser film engraving |
| CN201711630U (en) * | 2010-07-09 | 2011-01-19 | 蔡永一 | Precision adjusting system for linear cutting lathe |
| CN202710579U (en) * | 2012-05-30 | 2013-01-30 | 苏州生物医学工程技术研究所 | Automatic sample loading positioning and controlling system of sample disc |
| CN104372289A (en) * | 2013-08-15 | 2015-02-25 | 昆山思拓机器有限公司 | Position adjusting mechanism for stretching-flattening of OLED metal mask plate |
| CN104124852A (en) * | 2014-07-01 | 2014-10-29 | 上海福讯光电有限公司 | Linear motor system and control method thereof as well as photoetching machine applying linear motor system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461580A (en) * | 2017-08-31 | 2017-12-12 | 中国科学院光电技术研究所 | A kind of high accuracy, high capacity straight-line displacement platform |
| CN109254376A (en) * | 2018-10-22 | 2019-01-22 | 哈尔滨工业大学 | A kind of special type lens dead axle stage apparatus |
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Application publication date: 20160504 |
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