CN105629813A - Micro-displacement control system - Google Patents
Micro-displacement control system Download PDFInfo
- Publication number
- CN105629813A CN105629813A CN201410598326.9A CN201410598326A CN105629813A CN 105629813 A CN105629813 A CN 105629813A CN 201410598326 A CN201410598326 A CN 201410598326A CN 105629813 A CN105629813 A CN 105629813A
- Authority
- CN
- China
- Prior art keywords
- micrometric displacement
- control system
- circuit
- chip microcomputer
- micro
- 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.)
- Pending
Links
Abstract
The invention relates to the field of electronic technology instruments and meters, and specifically relates to a micro-displacement control system. The micro-displacement control system is composed of a PC, a single-chip microcomputer main control unit, a single-chip microcomputer control system external circuit, a micro-displacement positioning mechanism, a limit switch, a grating sensor and a display circuit; the single-chip microcomputer control system external circuit, the PC and the display circuit are connected with the single-chip microcomputer main control unit; and the micro-displacement positioning mechanism and a single-chip microcomputer are connected through a stepping motor deriver, the grating sensor and the limit switch which are connected in parallel. Motion precision of a three-dimensional micro-displacement system is greatly improved; a stepping motor adopts acceleration and deceleration control, so direct starting and sudden stop of the stepping motor are prevented, and stationarity of the stepping motor is greatly improved; and an output power frequency can be adjusted within 20KHz, the micro-displacement control system has a very wide speed scope and has high adaptability.
Description
Technical field
The present invention relates to electronic technology instrument field, be specifically related to a kind of micrometric displacement and control system.
Background technology
It is a kind of Artificial Intelligence Instrument integrating the multiple technologies such as machinery, optics, electronics and computer that micrometric displacement controls system. Advanced manufacturing technology with scientific research have and is extremely widely applied, be also measurement device indispensable in modern industry detection, quality control and manufacturing technology. Micrometric displacement controls system and is generally made up of nano-positioning stage, micrometric displacement detecting device and controller. Controller is the command centre of micro displacement system, and it controls mini positioning platform according to certain control algolithm so that it is according to certain regular movement, realize being accurately positioned.
Traditional three-dimensional micrometric displacement control system is generally adopted step motor drive ball-screw and realizes location. Motor is the opened loop control element that electric impulse signal is changed into angular displacement or displacement of the lines. When non-overload, the rotating speed of motor, stopping position be solely dependent upon frequency and the umber of pulse of pulse signal, and not by the impact of load change, namely a pulse signal is often applied, motor just rotates a step angle, and therefore umber of pulse is linear with total step angle of electric machine rotation. It addition, motor only has periodic error and without cumulative error so that become very simple in the control field step motor control such as speed, position. Open-loop control system of step has the advantages that simple in construction, relatively broad in the less demanding applications of control accuracy, but in actual applications, if motor ascending, descending speed control system is unreasonable, motor can be caused to lose step or overshoot; In open-loop control system, owing to the existence of step phenomenon lost by motor, it is impossible to know whether it accurately reaches precalculated position, also just cannot realize high-precision location.
Summary of the invention
For the problems referred to above, it is contemplated that propose a kind of output utilizing grating sensor to control the position feed back signal of system as micrometric displacement, it is achieved the micrometric displacement of closed loop control controls system.
Technical program of the present invention lies in:
A kind of micrometric displacement controls system, is made up of PC, single-chip microcomputer main control unit, single-chip computer control system external circuit, micrometric displacement detent mechanism, limit switch, grating sensor and display circuit; Wherein, single-chip computer control system external circuit, PC and display circuit are all connected with single-chip microcomputer main control unit; Between micrometric displacement detent mechanism and single-chip microcomputer, stepper motor driver in parallel, grating sensor and limit switch are connected.
Preferably, described single-chip computer control system external circuit is made up of serial port circuit, power circuit, clock circuit, reset circuit and the display circuit being connected with single-chip microcomputer main control unit respectively.
Preferably, described grating sensor resolution is 1um, carries read head, can directly export Transistor-Transistor Logic level or sine wave signal, provides convenience for signal processing and being connected with control system.
Preferably, described stepper motor driver adopts THB7128 chip.
Or preferably, described micrometric displacement detent mechanism adopts motorized precision translation stage, and is positioned by step motor drive ball-screw, and repetitive positioning accuracy is up to 3um.
Or preferably, described stepper motor driver adopts the bridge MOSFET that enjoys a double blessing to drive, with automatic semi-fluid lock function, built-in mixed evanescent mode; Built-in input pull down resistor; Wife's temperature protection and overcurrent protection.
It is highly preferred that described serial port circuit adopts RS232 to carry out serial communication.
The method have technical effect that:
STM32F103VCT6 single-chip computer control system of the present invention produces corresponding control signal, and drives ball-screw to complete the action of regulation by motor. Judge whether motion puts in place by process position feed back signal simultaneously, the kinematic accuracy making three-dimensional micro displacement system is greatly improved, and motor adopts ascending, descending speed control system, avoid directly initiating and jerk of motor, substantially improve the stationarity of motor, and output frequency can regulate within 20KHz, has very wide velocity interval, has very strong adaptability.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of micrometric displacement of the present invention controls system.
Detailed description of the invention
A kind of micrometric displacement controls system, is made up of PC, single-chip microcomputer main control unit, single-chip computer control system external circuit, micrometric displacement detent mechanism, limit switch, grating sensor and display circuit; Wherein, single-chip computer control system external circuit, PC and display circuit are all connected with single-chip microcomputer main control unit; Between micrometric displacement detent mechanism and single-chip microcomputer, stepper motor driver in parallel, grating sensor and limit switch are connected.
Wherein, single-chip computer control system external circuit is made up of serial port circuit, power circuit, clock circuit, reset circuit and the display circuit being connected with single-chip microcomputer main control unit respectively. Grating sensor resolution is 1um, carries read head, can directly export Transistor-Transistor Logic level or sine wave signal, provides convenience for signal processing and being connected with control system. Stepper motor driver adopts THB7128 chip. Micrometric displacement detent mechanism adopts motorized precision translation stage, and is positioned by step motor drive ball-screw, and repetitive positioning accuracy is up to 3um. Stepper motor driver adopts the bridge MOSFET that enjoys a double blessing to drive, with automatic semi-fluid lock function, built-in mixed evanescent mode; Built-in input pull down resistor; Wife's temperature protection and overcurrent protection. Serial port circuit adopts RS232 to carry out serial communication.
For realizing being accurately positioned of three-dimensional working platform, system adopts Closed-Loop Control of Stepping Motor system. In system, the output of grating sensor is utilized to control the position feed back signal of system as micrometric displacement, it is achieved closed loop control. The resolution of grating sensor is 1um, carries read head, can directly export Transistor-Transistor Logic level or sine wave signal, provides convenience for signal processing and being connected with control system. Control system judges whether to have reached precalculated position by grating sensor feedback signal, and then makes and adjust action accordingly. Thus reaching pinpoint purpose.
Claims (7)
1. a micrometric displacement controls system, it is characterised in that: it is made up of PC, single-chip microcomputer main control unit, single-chip computer control system external circuit, micrometric displacement detent mechanism, limit switch, grating sensor and display circuit; Wherein, single-chip computer control system external circuit, PC and display circuit are all connected with single-chip microcomputer main control unit; Between micrometric displacement detent mechanism and single-chip microcomputer, stepper motor driver in parallel, grating sensor and limit switch are connected.
2. as claim 1 micrometric displacement controls system, it is characterised in that: described single-chip computer control system external circuit is made up of serial port circuit, power circuit, clock circuit, reset circuit and the display circuit being connected with single-chip microcomputer main control unit respectively.
3. as claim 1 micrometric displacement controls system, it is characterised in that: described grating sensor resolution is 1mm, carries read head, can directly export Transistor-Transistor Logic level or sine wave signal, provides convenience for signal processing and being connected with control system.
4. as claim 1 micrometric displacement controls system, it is characterised in that: described stepper motor driver adopts THB7128 chip.
5. as claim 1 micrometric displacement controls system, it is characterised in that: described micrometric displacement detent mechanism adopts motorized precision translation stage, and is positioned by step motor drive ball-screw, and repetitive positioning accuracy is up to 3mm.
6. as claim 4 micrometric displacement controls system, it is characterised in that: described stepper motor driver adopts the bridge MOSFET that enjoys a double blessing to drive, with automatic semi-fluid lock function, built-in mixed evanescent mode; Built-in input pull down resistor; Wife's temperature protection and overcurrent protection.
7. as claim 2 micrometric displacement controls system, it is characterised in that: described serial port circuit adopts RS232 to carry out serial communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598326.9A CN105629813A (en) | 2014-10-31 | 2014-10-31 | Micro-displacement control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598326.9A CN105629813A (en) | 2014-10-31 | 2014-10-31 | Micro-displacement control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105629813A true CN105629813A (en) | 2016-06-01 |
Family
ID=56044879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410598326.9A Pending CN105629813A (en) | 2014-10-31 | 2014-10-31 | Micro-displacement control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105629813A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108416904A (en) * | 2018-03-09 | 2018-08-17 | 深圳怡化电脑股份有限公司 | Gate control method, system, self-service device and computer readable storage medium |
| CN109725574A (en) * | 2018-12-26 | 2019-05-07 | 广州贝晓德传动配套有限公司 | A kind of automation equipment electricity-saving system control method |
| CN112904773A (en) * | 2021-01-20 | 2021-06-04 | 南京理工大学 | Capacitor plate micro-displacement generation system based on ARM |
-
2014
- 2014-10-31 CN CN201410598326.9A patent/CN105629813A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108416904A (en) * | 2018-03-09 | 2018-08-17 | 深圳怡化电脑股份有限公司 | Gate control method, system, self-service device and computer readable storage medium |
| CN109725574A (en) * | 2018-12-26 | 2019-05-07 | 广州贝晓德传动配套有限公司 | A kind of automation equipment electricity-saving system control method |
| CN109725574B (en) * | 2018-12-26 | 2021-12-24 | 广州贝晓德智能科技有限公司 | Control method of power saving system of automatic equipment |
| CN112904773A (en) * | 2021-01-20 | 2021-06-04 | 南京理工大学 | Capacitor plate micro-displacement generation system based on ARM |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102809358B (en) | Coordinate positioning machine | |
| CN203046465U (en) | Device for ensuring accuracy of laser marking position | |
| CN102946222B (en) | A kind of method of PMSM Servo System hi-Fix | |
| CN202512403U (en) | Embedded control system of winding machine | |
| CN105629813A (en) | Micro-displacement control system | |
| CN102136300A (en) | Three-section combined type ultraprecise positioning table and positioning method thereof | |
| US10391729B2 (en) | Servo press, control method, and program | |
| CN104776862A (en) | Dynamic precision centrifuge system and testing method thereof | |
| CN103175568A (en) | Testing device for high-speed encoder | |
| CN107565861A (en) | Multi-Axis Stepper Motor Control System based on STM32 control L6470H drivers | |
| CN106712610A (en) | Control system of 3D (Three Dimensional) printing stepping motor | |
| CN106953578B (en) | Rotation becomes the transposition control system of location information combination hall position sensor | |
| CN107992109A (en) | Closed-loop positioning control system and method | |
| CN105403190A (en) | Displacement detection system of stepping machine | |
| CN203490505U (en) | Controller of right angle three-coordinate measuring machine | |
| CN207528830U (en) | Electric operator Hall element Auto-Test System | |
| CN209215924U (en) | A kind of servo motor two-axle interlocking system based on PLC control | |
| CN104165595A (en) | Ultraprecise displacement positioning and detecting method based on combined fringe displacement and fringe subdivision control | |
| CN106299695A (en) | Communication antenna automatic orienting device | |
| CN104953892B (en) | A kind of closed loop micro-displacement step drive device variable with displacement sensing function step pitch | |
| CN203645591U (en) | Stepping motor control system based on single-chip microcomputer | |
| CN104834321A (en) | Accurate positioning controller of high-acceleration air-suspending system and control method of accurate positioning controller | |
| Gao | Research and Implementation of Control Method for Time Grating Rotary Table with High Precision | |
| CN202600426U (en) | Hard drive type macro and micro automatic positioning control device | |
| CN202087905U (en) | Automatic compensation grinding system based on fuzzy control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |