CN103746518A - Adjusting method for aligning phase of servo motor and phase of coder - Google Patents
Adjusting method for aligning phase of servo motor and phase of coder Download PDFInfo
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- CN103746518A CN103746518A CN201410021870.7A CN201410021870A CN103746518A CN 103746518 A CN103746518 A CN 103746518A CN 201410021870 A CN201410021870 A CN 201410021870A CN 103746518 A CN103746518 A CN 103746518A
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Abstract
The invention discloses an adjusting method for aligning the phase of a servo motor and the phase of a coder. The method comprises the steps that through a mode that a large-capacity capacitor group is used for conducting large current into the motor, a rotor magnetic pole of the motor is attracted by the magnetic filed of the large current, the rotor magnetic pole is aligned with the center of a U-phase winding of the motor, after the circuit between the motor and the large-capacity capacitor group is conducted for the first time, the rotor magnetic pole is basically aligned with the center of the U-phase winding of the motor, the rotor magnetic pole is aligned with the center of the U-phase winding of the motor after the secondary conduction, the operation is very convenient and the precision is high, therefore the adjusting method is simple and convenient in the operation process, and the phase of a UVW electronic phase change signal of the coder can be precisely aligned with the phase of the rotor magnetic pole.
Description
Technical field
The present invention relates to the method for adjustment of servomotor and encoder phase alignment.
Background technology
The rotor of servomotor inside is permanent magnet, the U/V/W three-phase electricity of driver control forms rotates electromagnetic field, rotor rotates under the effect in this magnetic field, the encoder feedback signal that motor carries is simultaneously to driver, driver compares according to value of feedback and desired value, adjusts the angle that rotate in magnetic field.It is for measuring the transducer of position of magnetic pole, servomotor corner and rotating speed that encoder is arranged on servomotor.
During actual use, servomotor and encoder need servomotor and encoder to carry out phase alignment adjustment after assembling, make phase place and the rotor magnetic pole phase alignment of the UVW electronics commutation signal of encoder, so that driver can accurately be controlled motor.But use current method of adjustment operating process very loaded down with trivial details, staff is difficult to the phase place of encoder to align accurately, easily occurs that current of electric is large, and running precision is inaccurate, the problem such as also easily occur shake and report an error.
Summary of the invention
The technical problem to be solved in the present invention is that a kind of phase place and the servomotor of rotor magnetic pole phase place Accurate align and method of adjustment of encoder phase alignment that can make the UVW electronics commutation signal of encoder is provided.
Technical solution of the present invention is, a kind of method of adjustment with servomotor and the encoder phase alignment of following structure is provided, and comprises the following steps:
1., the motor shaft of servomotor is connected with the axle of encoder; Described encoder is connected with oscilloscope;
2., the V phase on described motor and W are connected to the positive pole of large bulk capacitance group after being in parallel; U on described motor is connected at the negative pole of described large bulk capacitance group; With high pressure adjustable DC power supply, give described large bulk capacitance group charging; After the charging of described large bulk capacitance group, the circuit between the motor described in conducting and described large bulk capacitance group, makes described large bulk capacitance group to described motor electric discharge, produces the large electric current that passes through described motor, and ON time maintains 5-10 millisecond; Repeat conducting at least twice;
3., completing steps 2. after, the rotor magnetic pole of described motor is aimed at the U phase winding center of described motor;
4., rotate the shell of described encoder, watch described oscilloscope simultaneously; On oscillographic display screen, occur after Z signal, the shell of the shell of described encoder and described motor is fixed; Complete the phase alignment adjustment process of servomotor and encoder.
Adopt after above structure, the method for adjustment of servomotor of the present invention and encoder phase alignment, compared with prior art, has the following advantages:
The method of adjustment of servomotor of the present invention and encoder phase alignment, mode by from large bulk capacitance group to the logical large electric current of described motor, the rotor magnetic pole of the motor described in making is subject to the sucking action of large current field, make the U phase winding center of rotor magnetic pole to alignment motor, after circuit conducting for the first time between described motor and large bulk capacitance group, rotor magnetic pole is the U phase winding center to alignment motor substantially, after conducting for the second time, just can make the U phase winding center of rotor magnetic pole to alignment motor, operation is quite convenient and accuracy is high, therefore, make method of adjustment operating process of the present invention simple and convenient, and can make phase place and the rotor magnetic pole phase place Accurate align of the UVW electronics commutation signal of encoder.
As a modification of the present invention, the time of the each conducting of circuit between described motor and described large bulk capacitance group maintains 10 milliseconds; Repeat conducting three times.Adopting this kind of structure is optimum implementation, the circuit turn-on between described motor and described adjustable DC supply unit once after, described rotor magnetic pole is the U phase winding center to alignment motor substantially; After conducting secondary, the U phase winding center of described rotor magnetic pole to alignment motor; After conducting three times, can guarantee the accurately U phase winding center to alignment motor of described rotor magnetic pole.
As of the present invention, also have a kind of improvement, described adjustable DC supply unit to the value of the logical large electric current of described motor, be described motor rated current value 5-10 doubly.Remain within the scope of this large electric current as best.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the method for adjustment of servomotor of the present invention and encoder phase alignment.
Fig. 2 is the circuit structure diagram of adjustable DC supply unit of the method for adjustment of servomotor of the present invention and encoder phase alignment.
Fig. 3 is the waveform of adjusting by the method for adjustment of servomotor of the present invention and encoder phase alignment.
embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Refer to shown in Fig. 1 and Fig. 2, the method for adjustment of servomotor of the present invention and encoder phase alignment, comprises the following steps:
1., the motor shaft of servomotor is connected with the axle of encoder.Described encoder is connected with oscilloscope.
2., the V phase on described motor and W are connected to the positive pole of large bulk capacitance group after being in parallel.U on described motor is connected at the negative pole of described large bulk capacitance group.In this specific embodiment, described large bulk capacitance group comprises 3 electric capacity, and 3 described electric capacity are in parallel.With high pressure adjustable DC power supply, give described large bulk capacitance group charging, described high pressure adjustable DC power supply is prior art, on market, can buy and obtain.Between described high pressure adjustable DC power supply and large bulk capacitance group, be provided with the first switch, when the first switch cuts out, described high pressure adjustable DC power supply charges to large bulk capacitance group.After described large bulk capacitance group charging, by the second switch between closed described motor and described large bulk capacitance group, carry out the circuit between motor described in conducting and described large bulk capacitance group, make described large bulk capacitance group to described motor electric discharge, produce by the large electric current of described motor, ON time maintains 5-10 millisecond; Repeat conducting at least twice.In this specific embodiment, the time of the each conducting of circuit between described motor and described large bulk capacitance group maintains 10 milliseconds.Repeat conducting three times.Described large bulk capacitance group to the value of the logical large electric current of described motor, be described motor rated current value 5-10 doubly.
3., completing steps 2. after, the rotor magnetic pole of described motor is aimed at the U phase winding center of described motor.
4., rotate the shell of described encoder, watch described oscilloscope simultaneously; On oscillographic display screen, occur after Z signal, the shell of the shell of described encoder and described motor is fixed; Complete the phase alignment adjustment process of servomotor and encoder.
See also shown in Fig. 3, through after accurate adjustment, described Z signal correspondence the rising edge of U signal.
Claims (3)
1. a method of adjustment for servomotor and encoder phase alignment, comprises the following steps:
1., the motor shaft of servomotor is connected with the axle of encoder; Described encoder is connected with oscilloscope;
2., the V phase on described motor and W are connected to the positive pole of large bulk capacitance group after being in parallel; U on described motor is connected at the negative pole of described large bulk capacitance group; With high pressure adjustable DC power supply, give described large bulk capacitance group charging; After the charging of described large bulk capacitance group, the circuit between the motor described in conducting and described large bulk capacitance group, makes described large bulk capacitance group to described motor electric discharge, produces the large electric current that passes through described motor, and ON time maintains 5-10 millisecond; Repeat conducting at least twice;
3., completing steps 2. after, the rotor magnetic pole of described motor is aimed at the U phase winding center of described motor;
4., rotate the shell of described encoder, watch described oscilloscope simultaneously; On oscillographic display screen, occur after Z signal, the shell of the shell of described encoder and described motor is fixed; Complete the phase alignment adjustment process of servomotor and encoder.
2. the method for adjustment of servomotor according to claim 1 and encoder phase alignment, is characterized in that: the time of the each conducting of circuit between described motor and described large bulk capacitance group maintains 10 milliseconds; Repeat conducting three times.
3. the method for adjustment of servomotor according to claim 1 and encoder phase alignment, is characterized in that: described large bulk capacitance group to the value of the logical large electric current of described motor, be described motor rated current value 5-10 doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021870.7A CN103746518B (en) | 2014-01-18 | 2014-01-18 | The method of adjustment of the phase alignment of servomotor and encoder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410021870.7A CN103746518B (en) | 2014-01-18 | 2014-01-18 | The method of adjustment of the phase alignment of servomotor and encoder |
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| CN103746518A true CN103746518A (en) | 2014-04-23 |
| CN103746518B CN103746518B (en) | 2016-03-09 |
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| CN201410021870.7A Active CN103746518B (en) | 2014-01-18 | 2014-01-18 | The method of adjustment of the phase alignment of servomotor and encoder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787463A (en) * | 2016-12-28 | 2017-05-31 | 江西顶翔智控科技有限公司 | A kind of unmanned plane brshless DC motor encoder and rotor magnetic pole phase alignment method |
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| JPH1080178A (en) * | 1996-09-02 | 1998-03-24 | Casio Electron Mfg Co Ltd | Dc brushless motor driving circuit |
| US5852355A (en) * | 1996-05-23 | 1998-12-22 | Switched Reluctance Drives Limited | Output smoothing in a switched reluctance machine |
| CN101783633A (en) * | 2010-03-12 | 2010-07-21 | 江苏金方圆数控机床有限公司 | Coaxial drive system for two permanent magnet synchronous motors |
| CN102778251A (en) * | 2012-07-18 | 2012-11-14 | 宁波海得工业控制***有限公司 | Zero position correction method for permanent magnet alternating current servo motor incremental encoder |
| US20120319639A1 (en) * | 2011-06-20 | 2012-12-20 | Denso Corporation | Torque generator using full-pitch winding reluctance motor and control unit therefor |
| CN103166563A (en) * | 2013-04-12 | 2013-06-19 | 上海维宏电子科技股份有限公司 | Initial alignment detecting method of rotor position in permanent magnet synchronous motor |
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2014
- 2014-01-18 CN CN201410021870.7A patent/CN103746518B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852355A (en) * | 1996-05-23 | 1998-12-22 | Switched Reluctance Drives Limited | Output smoothing in a switched reluctance machine |
| JPH1080178A (en) * | 1996-09-02 | 1998-03-24 | Casio Electron Mfg Co Ltd | Dc brushless motor driving circuit |
| CN101783633A (en) * | 2010-03-12 | 2010-07-21 | 江苏金方圆数控机床有限公司 | Coaxial drive system for two permanent magnet synchronous motors |
| US20120319639A1 (en) * | 2011-06-20 | 2012-12-20 | Denso Corporation | Torque generator using full-pitch winding reluctance motor and control unit therefor |
| CN102778251A (en) * | 2012-07-18 | 2012-11-14 | 宁波海得工业控制***有限公司 | Zero position correction method for permanent magnet alternating current servo motor incremental encoder |
| CN103166563A (en) * | 2013-04-12 | 2013-06-19 | 上海维宏电子科技股份有限公司 | Initial alignment detecting method of rotor position in permanent magnet synchronous motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787463A (en) * | 2016-12-28 | 2017-05-31 | 江西顶翔智控科技有限公司 | A kind of unmanned plane brshless DC motor encoder and rotor magnetic pole phase alignment method |
| CN106787463B (en) * | 2016-12-28 | 2019-02-12 | 江西顶翔智控科技有限公司 | A kind of unmanned plane brshless DC motor encoder and rotor magnetic pole phase alignment method |
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| CN103746518B (en) | 2016-03-09 |
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