CN1571268A - Absolute zero control method and device for stepper motor - Google Patents
Absolute zero control method and device for stepper motor Download PDFInfo
- Publication number
- CN1571268A CN1571268A CN 200410018182 CN200410018182A CN1571268A CN 1571268 A CN1571268 A CN 1571268A CN 200410018182 CN200410018182 CN 200410018182 CN 200410018182 A CN200410018182 A CN 200410018182A CN 1571268 A CN1571268 A CN 1571268A
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- controller
- absolute zero
- chip
- stepping motor
- zero position
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Abstract
The invention is a absolute zero-position control method and device for step motor, including a step motor controlled by a controller and a transmission system driven by the step motor, there is an inversion sensor arranged at the end of the transmission system and connected with the controller, the controller receives inversion judge signal of the transmission system and controls the rough positioning of the step motor; there is a position sensor arranged on rotor shaft of the step motor and connected with the controller, the controller receives accurate reach judge signal of the transmission system to control the accurate position of the step motor, namely the absolute zero position; as compared with exiting technique, it has the characters of reliable method, simple device, low cost, convenience to control the absolute zero position of the step motor, wide application, etc.
Description
Technical field
What the present invention relates to is a kind of control method and device of stepping motor absolute zero position, and absolute zero position control and the control signal device thereof of especially a kind of stepping motor when driving drive system belongs to Stepping Motor Control.
Background technology
Stepping motor is a kind of control motor that pulse signal is become straight-line displacement and angular displacement, since its rotating speed and displacement strictly with the umber of pulse correspondence, so control is simple, can be widely used in the automatic control system, as executive component, be one of critical product of electromechanical integration.In use, stepping motor mostly is open loop control, though higher positional precision is arranged, but require its absolute zero position control is difficult to accomplish, generally must use closed circuit control, just can accomplish, method commonly used is to add photoelectric encoder or resolver on the rear axle of motor, zero signal according to transducer spreads out of carries out discriminating processing to controller.But costing an arm and a leg of photoelectric encoder or resolver only is used for the measuring ability of a zero signal, and its cost performance is too high, is unfavorable for applying.It is very extensive to use stepping motor at present in economical NC machine tool, its Stroke Control is provided with as judges to sensing equipment near switch, optoelectronic switch or the conduct of other travel switch the coarse positioning of transmission mostly at the not end of drive system, its precision is not high, can not satisfy the required precision of machine tooling far away, generally in use for reaching processing request, must carry out tool setting earlier, start-up routine is processed then, but so too time-consuming, efficient is not high.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existence, and provide a kind of method reliable, simple, cost is low, can make things convenient for the stepping motor absolute zero position control method and the device of the absolute zero position of control step motor.This stepping motor absolute zero position control method, it comprises that a stepping motor by controller control reaches the drive system by its drive, be provided with sensing equipment and link to each other at the end position of drive system, accept the coarse positioning that putting in place of drive system slightly declared signal and control step motor by controller with controller; The armature spindle of stepping motor is provided with the orientation sensing device, is connected with controller by this orientation sensing device, accepts the precise judgement signal that puts in place of drive system by controller, with the fine positioning of control step motor, i.e. absolute zero position.
Described orientation sensing device comprises and is fixed in the chip that has narrow groove on the armature spindle and the fixed light electric transducer that matches, the precise judgement signal that utilizes the groove edge of photosignal on chip of photoelectric sensor to beam back transfers to controller, to judge armature spindle absolute zero position radially and control.
A kind of device in the absolute zero position control method of stepping motor of the present invention, it is to be fixed with the chip that has narrow groove on the armature spindle of stepping motor, is furnished with fixing photoelectric sensor mutually with chip.
Described photoelectric sensor is to face the chip fixed in position, and it is built-in with shaping or amplifying circuit, and the narrow groove on the described chip is axially to be provided with.
The present invention compared with prior art, characteristics such as it is reliable to have method, and device is simple, and cost is low, and the absolute zero position of control step motor is widely used easily, and is easy to utilize.
Description of drawings
Fig. 1 is a control method principle schematic of the present invention.
Fig. 2 is an apparatus structure schematic diagram of the present invention.
Embodiment
The present invention will be described in detail below in conjunction with accompanying drawing: shown in Figure 1, stepping motor absolute zero position control method of the present invention, it comprises the drive system 2 that a stepping motor 1 of being controlled by controller reaches by its drive, drive system shown in the figure by the screw mandrel 3 that links to each other with stepping motor 1 with by fixedlying connected with the travelling gear of screw mandrel engagement, movably planker 4 is formed, end position in drive system, be that the displacement of planker 4 is not held and is provided with sensing equipment 5, as coarse positioning transducer or optoelectronic switch or travel switch etc., should link to each other with controller to level sensor 5, accept the coarse positioning that putting in place of drive system 2 slightly declared signal and control step motor 1 by controller.The armature spindle 6 of stepping motor 1 is provided with orientation sensing device 7, this orientation sensing device 7 comprises the fixing photoelectric sensor 10 that is fixed in the chip 9 that has narrow groove 8 on the armature spindle 6 and matches, the precise judgement signal that utilizes the groove edge of photosignal on chip 9 of photoelectric sensor 10 to beam back transfers to controller, to judge radially absolute zero position of armature spindle, and the fine positioning of control step motor 1, i.e. absolute zero position.In the said method, mainly be to utilize slightly to declare signal, the coarse positioning of control step motor 1 judges promptly which circle rotor axis of electric is positioned at; The precise judgement signal that utilizes chip groove edge fixing on the rotor axis of electric to send, the fine positioning of control step motor judges that promptly the stepping motor rotor axle is positioned at which point in the thick fixed circle, i.e. absolute zero position.
Figure 2 shows that a kind of device of the fine positioning in the absolute zero position control method of stepping motor of the present invention, it is to be fixed with the chip 9 that has narrow groove 8 on the rear axle section of stretching out of the armature spindle 6 of stepping motor 1, is furnished with the photoelectric sensor 10 that is fixed on the stepping motor rear end cap relevant position mutually with chip 9.This photoelectric sensor 10 is to face chip 9 fixed in position, and it is built-in with shaping or magnification circuit plate 11, and the narrow groove 8 on the described chip 9 is axially to be provided with.When the stepping motor band chip 9 rotations, during the chip 9 shading light signals of telecommunication low level 0 output; When aiming at narrow groove 8, the signal output of 24V amplitude is just arranged, controller detects this signal, allows the stepping motor stop, owing to be the edge-triggered of seam, so positioning accuracy is very high, realizes the location of absolute zero position easily.
Claims (4)
1, a kind of stepping motor absolute zero position control method, it comprises that a stepping motor by controller control reaches the drive system by its drive, be provided with sensing equipment and link to each other at the end position of drive system, accept the coarse positioning that putting in place of drive system slightly declared signal and control step motor by controller with controller; The armature spindle (6) that it is characterized in that stepping motor (1) is provided with orientation sensing device (7), be connected with controller by this orientation sensing device (7), accept the precise judgement signal that puts in place of drive system (2) by controller, with the fine positioning of control step motor (1), i.e. absolute zero position.
2, stepping motor absolute zero position control method according to claim 1, it is characterized in that described orientation sensing device (7) comprises the fixing photoelectric sensor (10) that is fixed in the chip (9) that has narrow groove (8) on the armature spindle (6) and matches, the precise judgement signal that utilizes the groove edge of photosignal on chip (9) of photoelectric sensor (10) to beam back transfers to controller, to judge armature spindle absolute zero position radially and control.
3, a kind of device that is used for the absolute zero position control method of claim 1 or 2 described stepping motors, it is characterized in that it is to be fixed with the chip (9) that has narrow groove (8) on the armature spindle (6) of stepping motor (1), is furnished with fixing photoelectric sensor (10) mutually with chip (9).
4, device according to claim 3 is characterized in that described photoelectric sensor (10) is to face chip (9) fixed in position, and it is built-in with shaping or magnification circuit plate (11), and the narrow groove (8) on the described chip (9) is axially to be provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410018182 CN1571268A (en) | 2004-04-29 | 2004-04-29 | Absolute zero control method and device for stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410018182 CN1571268A (en) | 2004-04-29 | 2004-04-29 | Absolute zero control method and device for stepper motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1571268A true CN1571268A (en) | 2005-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410018182 Pending CN1571268A (en) | 2004-04-29 | 2004-04-29 | Absolute zero control method and device for stepper motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN1571268A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664856B (en) * | 2009-08-21 | 2013-05-22 | 深圳翠涛自动化设备股份有限公司 | Rotating shaft position-limiting device with sensor |
| CN105790511A (en) * | 2016-04-21 | 2016-07-20 | 东北大学 | Stepping motor control device and control method |
-
2004
- 2004-04-29 CN CN 200410018182 patent/CN1571268A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664856B (en) * | 2009-08-21 | 2013-05-22 | 深圳翠涛自动化设备股份有限公司 | Rotating shaft position-limiting device with sensor |
| CN105790511A (en) * | 2016-04-21 | 2016-07-20 | 东北大学 | Stepping motor control device and control method |
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