CN202600426U - Hard drive type macro and micro automatic positioning control device - Google Patents
Hard drive type macro and micro automatic positioning control device Download PDFInfo
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- CN202600426U CN202600426U CN 201220109265 CN201220109265U CN202600426U CN 202600426 U CN202600426 U CN 202600426U CN 201220109265 CN201220109265 CN 201220109265 CN 201220109265 U CN201220109265 U CN 201220109265U CN 202600426 U CN202600426 U CN 202600426U
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Abstract
The utility model relates to a control device especially suitable for precision manufacturing and particularly relates to a hard drive type macro and micro automatic positioning control device, which comprises a macro-motion worktable, a control system, and a micro-motion worktable mounted on the macro-motion worktable. The control system displays and monitors actual displacement in real time by adopting a man-machine interface and provides pulse signals and various control signals through a PLC, and an annular distributor distributes input single pulse strings to power amplifiers connected to each phase winding of stepping motors respectively and sequentially according to the working mode and rotating direction so that a rotating magnetic field can be formed and enough electromagnetic torque can be generated to enable the motors to rotate and drive a screw rod to drive the worktables to move. The whole device masterly employs the method of superposing micro-motion positioning on macro-motion positioning, a displacement detector is directly mounted on the micro-motion worktable so that a closed loop control system is formed, and the problem of large-stroke, high-speed and precise positioning is solved. The hard drive type macro and micro automatic positioning control device is simple in structure, convenient in programming and high in control precision, and is a large-stroke, high-speed and precise control device which can be popularized at a large scale.
Description
Technical field
The utility model relates to a kind of control device, especially is useful for sophisticated manufacturing, the grand little two-stage Automatic Positioning Control device of specifically a kind of hard disk driver ejector half.
Background technology
The range of application of precision positioning technology is extremely broad; Require more and more; The notion of precision positioning has different understanding and quantity to define at different times; Actual conditions with regard to present see that the submicron order bearing accuracy is the bottom line of precision positioning, and nanometer positioning is being represented the highest level of precision positioning.
The application of precision positioning technology is very extensive; Along with development of science and technology; Precision positioning technology is widely used in micromachine, miniature assembling field, simultaneously, and in fields such as microelectronics information industry, genetically modified organism engineering, semiconductor lithography, precision measurement, ultraprecise processing, biological cell manipulation and nanometer technologies; Also all need very accurately location and very fine moving; Therefore high performance ultraprecise positioning table becomes the technical support in these fields, and this Study on Technology is in the forward position of precision engineering technology in the world, has great scientific meaning and using value.
From present domestic and international research situation to Precision Position Location System; In order to realize big stroke, generally all be to adopt grand little two-stage locator meams, that is be on the basis of grand moving positioning control; Stack fine motion positioning control realizes the big stroke motion and the nanoscale precision positioning technology of objective table at last.Numerous positioning systems in order to improve bearing accuracy, adopt the drive unit as system such as linear electric motors, fluid pressure leading screw or friction gearing mostly, but locating speed still can not get large increase.Therefore, can total system bearing accuracy and speed be improved, have Practical significance through improving the control system performance under traditional ball-screw transmission.Study and design a kind of automaton and have high realistic meaning.
Summary of the invention
The purpose of the utility model exactly in order to solve the above-mentioned technical matters that exists on the prior art, provides a kind of hard disk driver ejector half grand little two-stage Automatic Positioning Control device.
In order to solve the problems of the technologies described above; The utility model solves the technical scheme that its technical matters adopted: provide a kind of hard disk driver ejector half grand little two-stage Automatic Positioning Control device; Comprise grand moving worktable, control system and micro displacement workbench; It is characterized in that: control system all adopts stepper motor as driving link, and the grand moving location that is added to is located in fine motion, and displacement detector one end connects the micro displacement workbench other end and connects PLC.
Described control system provides pulse signal and various control signal through PLC; The single train of impulses that ring distributor will be imported; By working method with turn to respectively successively to the power amplifier dispense-pulse that is attached to each phase winding of stepper motor so that form rotating magnetic field, produce enough electromagnetic torques; Make the motor rotation drive leading screw and drive working table movement; Here cycle pulse distributor adopts hardware to realize that PLC only need provide pulse signal and various control signal, produces the pulse of specified quantity and frequency (pulsed frequency is not influenced by the program performance period) through the pulse output order of PLC.It is characterized in that: adopt special segmentation to drive the effect of not only playing ring distributor; But also realized that the output of small step elongation, change output current, fault-phase protection, efficiently radiates heat have significantly reduced deviser's workload simultaneously; The deviser only needs the instructions with reference to stepper motor and supporting driver, and the correct line of the knowledge of using PLC just can be realized the hardware driving of PLC to stepper motor again.
The beneficial effect of the utility model is: owing to adopt the touch screen human-computer interface technology generation for the conventional switch button, realize showing in real time chart, image information, man-machine harmony; Owing to adopt step7 and Wincc flexible software directly programming and configuration on PC, can make things convenient for the program adjustment, make things convenient for human-machine interface configuration; Since the stepper motor high position precision, high responsiveness, and characteristics such as flexible control can realize at a high speed accurately location; Adopt special segmentation to drive and not only play the effect of ring distributor, but also realized that the output of small step elongation, change output current, fault-phase protection, efficiently radiates heat have significantly reduced deviser's workload simultaneously; Because micro displacement workbench is only the final operating part of this device, displacement detector directly is contained in whole errors of eliminating on the micro displacement workbench in the grand motion work.In a word, adopt grand little two-stage to control automatically, can realize that big stroke can realize accurate location again; And can reach the requirement of operating part high-speed motion.
Description of drawings
Accompanying drawing has provided the practical implementation example of the utility model, is used for explaining the principle of the utility model in the lump with instructions.Through the detailed description of doing below in conjunction with accompanying drawing, can more be expressly understood purpose, advantage and the characteristic of the utility model, wherein identical characteristic is used identical label.
Fig. 1 is the schematic diagram of the grand little two-stage Automatic Positioning Control device of the utility model hard disk driver ejector half.
Fig. 2--the 4th, the man-machine interface synoptic diagram of the utility model.
Embodiment
Therefore the preferred example of the grand little two-stage Automatic Positioning Control device of following the utility model hard disk driver ejector half does not limit the protection domain of the utility model.
The grand little two-stage Automatic Positioning Control device of a kind of hard disk driver ejector half; As shown in Figure 1; It comprises grand moving worktable (9), control system and micro displacement workbench (7), and micro displacement workbench (7) is installed on the grand moving worktable (9), and displacement detector (8) is directly installed on the micro displacement workbench (7).
Control system as shown in Figure 1 goes up at PC (1) respectively step7 and Wincc flexible software is installed.Program and configuration interface (Fig. 2,3, shown in 4) downloaded to PLC (3) and man-machine interface (2) respectively through RS232.Man-machine interface (2) and PLC (3) are through the communication of special-purpose RS232 cable.
Control system as shown in Figure 1 need be provided with micro displacement workbench shift motion (shown in Figure 3) in man-machine interface (2), A/D modular converter through PLC and Control Software contrast current stroke and set stroke.Through PLC (3) pulse signal and various control signal are provided, the single train of impulses that hardware driver (12) will be imported, by working method with turn to respectively successively to the power amplifier dispense-pulse that is attached to each phase winding of stepper motor; So that formation rotating magnetic field; Produce enough electromagnetic torques, make stepper motor (11) rotation drive grand moving worktable (9) motion, detecting device detects the displacement of micro displacement workbench in real time simultaneously; Do not set the fast commentaries on classics of stroke 90% stepper motor (11) when also reaching; When reaching 90% stepper motor (11) slow-speed, when reaching 98% stepper motor (11) stall stepper motor (5) slow-speed, up to setting stroke stepper motor (5) stall.
Like Fig. 1 micro displacement workbench (7) is the operating part of this device, and displacement detector (8) directly is contained on the micro displacement workbench (7), obtains the physical location of worktable, eliminates the whole errors in the grand motion work.
Feedback fraction displacement detector (8) like the described control system of Fig. 1 directly is connected on the PLC (3) through RS232; PLC (3) constantly receives the signal of displacement detector output interface; Compare through the calculating of inner setting program again; Send the pulse of corresponding frequencies, the rotating speed of constantly adjusting stepper motor is to satisfy the requirement to displacement control.Man-machine interface (2) monitoring in real time simultaneously shows actual displacement.
Claims (2)
1. grand little two-stage Automatic Positioning Control device of hard disk driver ejector half; Comprise grand moving worktable, control system and micro displacement workbench; It is characterized in that: control system all adopts stepper motor as driving link; The grand moving location that is added to is located in fine motion, and displacement detector one end connects the micro displacement workbench other end and connects PLC.
2. the grand little two-stage Automatic Positioning Control device of hard disk driver ejector half according to claim 1; It is characterized in that: control system provides pulse signal and various control signal through PLC; The single train of impulses that ring distributor will be imported, by working method with turn to respectively successively to the power amplifier dispense-pulse that is attached to each phase winding of stepper motor so that form rotating magnetic field; Produce enough electromagnetic torques, make the motor rotation drive leading screw and drive working table movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220109265 CN202600426U (en) | 2012-03-21 | 2012-03-21 | Hard drive type macro and micro automatic positioning control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220109265 CN202600426U (en) | 2012-03-21 | 2012-03-21 | Hard drive type macro and micro automatic positioning control device |
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| Publication Number | Publication Date |
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| CN202600426U true CN202600426U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220109265 Expired - Fee Related CN202600426U (en) | 2012-03-21 | 2012-03-21 | Hard drive type macro and micro automatic positioning control device |
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| CN (1) | CN202600426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656682A (en) * | 2014-12-30 | 2015-05-27 | 中国科学院长春光学精密机械与物理研究所 | Macro and micro two-stage driving precision positioning mechanism |
| CN107755654A (en) * | 2016-08-23 | 2018-03-06 | 上海宝信软件股份有限公司 | Automatic measurement and record slab electromagnetic agitation magnetic field intensity apparatus and method |
-
2012
- 2012-03-21 CN CN 201220109265 patent/CN202600426U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104656682A (en) * | 2014-12-30 | 2015-05-27 | 中国科学院长春光学精密机械与物理研究所 | Macro and micro two-stage driving precision positioning mechanism |
| CN104656682B (en) * | 2014-12-30 | 2017-07-14 | 中国科学院长春光学精密机械与物理研究所 | A kind of grand micro- two-stage drive precision positioning mechanism |
| CN107755654A (en) * | 2016-08-23 | 2018-03-06 | 上海宝信软件股份有限公司 | Automatic measurement and record slab electromagnetic agitation magnetic field intensity apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Yu Shibiao Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130321 |