CN104393716B - A kind of AC servo motor assembly technology with brake - Google Patents
A kind of AC servo motor assembly technology with brake Download PDFInfo
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- CN104393716B CN104393716B CN201410743564.4A CN201410743564A CN104393716B CN 104393716 B CN104393716 B CN 104393716B CN 201410743564 A CN201410743564 A CN 201410743564A CN 104393716 B CN104393716 B CN 104393716B
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- brake
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- rotor
- servo motor
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Abstract
The present invention is a kind of AC servo motor assembly technology with brake, comprises the following steps: first complete the installation of stator winding, rotor, drive end bearing bracket, rear end cap；Stator winding is passed to unidirectional current；Encoder zero-crossing detector is utilized to find the actual zero point of encoder；Encoder is installed in motor back cover；Brake passes to unidirectional current, opens band-type brake, brake is installed in arrester shell body, completes assembling.The present invention can be effectively improved the assembly precision that encoder is assemblied on motor.Relate to technical field of motors.
Description
Technical field
The present invention relates to a kind of AC servo motor assembly technology, relate more specifically to the present invention relates to a kind of AC servo motor assembly technology with brake.Belong to electric motors.
Background technology
AC servo motor is high due to its positioning precision, rotating speed is steady, the features such as overload capacity is strong, have been widely used in lathe, printing equipment, packaging facilities, Weaving device, robot, automatic production line etc. and have required craft precision, working (machining) efficiency and functional reliability in of a relatively high industry.
In the servosystem of complete set, high position precision is one of them key character, and the factor affecting positioning precision includes the control accuracy of driver, encoder feedback precision and the assembly precision being assemblied on motor by encoder.
Existing servomotor, for meeting real requirement mostly with electricity loss brake, is generally mounted between motor body and encoder.Due to brake electric declutch after still with certain resistance, use traditional assembly technology, when motor and encoder can be caused to attach together, there is bigger error, thus causes the zero point of encoder can produce bigger error relative to the location of motor rotor magnetic steel position in the location of rotor.
Summary of the invention
The invention discloses a kind of AC servo motor assembly technology with brake, it is intended to, by adjusting brake and the encoder installation site on motor body and erection sequence, the zero point positioning precision relative to motor rotor magnetic steel position of encoder to be effectively improved.
For reaching object above, the present invention adopts the following technical scheme that and is:
A kind of AC servo motor assembly technology with brake, it comprises the following steps:
(1) installation of stator winding, rotor, drive end bearing bracket, rear end cap is first completed；
(2) pass to unidirectional current to stator winding, then the magnetomotive force that stator winding produces and the synthesis magnetomotive force of the magnetomotive force interaction generation of rotor magnetic steel, rotor magnetic steel is locked in a certain fixed angle of radial circumference, determines the dead-center position of rotor magnetic steel；
(3) encoder zero-crossing detector is utilized to find the actual zero point of encoder；
(4) the actual zero point making encoder is corresponding with the dead-center position of rotor magnetic steel consistent, and encoder is installed on the Rotor terminal of locked position；The encoder finding zero point is installed on the Rotor terminal of locked position,
(5) motor back cover is installed；
(6) brake passes to unidirectional current, opens band-type brake, brake is installed in arrester shell body, completes assembling.
On the basis of technique scheme, as follows:
In (1st) step, including: being press-fited by stator winding in motor case, press-fit in the bearing chamber of drive end bearing bracket by the fore bearing of rotor, rotor passes stator winding, installs motor front end cover, installs back end cover for motor.
In (2nd) step, the unidirectional current of described stator winding is 5V unidirectional current；Wherein the U of stator winding connects DC power anode, and V, W connect DC power cathode.
In (6th) step, brake passes to 24V unidirectional current.
It is an advantage of the current invention that:
Unidirectional current is passed to stator winding, the synthesis magnetomotive force that the magnetomotive force of now stator winding generation and the magnetomotive force interaction of rotor magnetic steel produce, rotor magnetic steel is locked in a certain fixed angle of radial circumference, to determine the dead-center position of rotor magnetic steel, brake is not assembled due on now rotor, now the resistance on rotor is almost nil, and therefore the positioning precision of rotor is high, the most accurately.And the stator and rotor of encoder often relatively rotate one week, a least high level signal of length will be exported, the relative position of the stator and rotor of the encoder that use encoder zero-crossing testing-calibrating instrument is corresponding when this signal being detected is the actual zero point of encoder, use the actual zero point of encoder, provide more accurate feedback signal can to its host controller.By adjusting brake and the encoder installation site on motor body and erection sequence, more traditional assembly technology, installation accuracy error improves about 10%.
Accompanying drawing explanation
Fig. 1 is the schematic diagram assembling the AC servo motor with brake.
In figure: 1 stator winding, 2 encoders, 3 motor back covers, 4 brakes, 5 brake casings, 6 rotors.
Detailed description of the invention
Below, in conjunction with accompanying drawing and most preferred embodiment, it is further described.
As it is shown in figure 1, by adjusting brake and the encoder installation site on motor body and erection sequence, improve the zero point positioning precision relative to motor rotor magnetic steel position of encoder.
(1) stator winding is press-fited in motor case；Press-fiting in the bearing chamber of drive end bearing bracket by the fore bearing of rotor, now, rotor passes stator winding；Motor front end cover is installed；Back end cover for motor is installed；First complete the installation of stator winding, rotor, drive end bearing bracket, rear end cap；
(2) stator winding is passed to 5V unidirectional current again, wherein the U of stator winding connects positive source, V, W connect power cathode, the synthesis magnetomotive force that the magnetomotive force of now stator winding generation and the magnetomotive force interaction of rotor magnetic steel produce, rotor magnetic steel is locked in a certain fixed angle of radial circumference, determines the dead-center position of rotor magnetic steel；Not assembling brake due on now rotor, now the resistance on rotor is almost nil, and therefore the positioning precision of rotor is high, the most accurately；
(3) encoder zero-crossing detector is utilized to find the actual zero point of encoder；The actual zero point using encoder can provide more accurate feedback signal to its host controller；
(4) the actual zero point making encoder is consistent with the dead-center position of rotor magnetic steel, just finds the encoder of zero point to be installed on the Rotor terminal of locked position；The so anglec of rotation of encoder and dead-center position just represents the anglec of rotation and the dead-center position of rotor magnetic steel；
(5) motor back cover is installed；Encoder is installed in motor back cover；
(6) brake passes to 24V unidirectional current, opens band-type brake, brake is installed on drive end bearing bracket, completes follow-up installation.
Above-mentioned a kind of AC servo motor assembly technology with brake is by adjusting brake and the encoder installation site on motor body and erection sequence, more traditional assembly technology, and installation accuracy error improves 10%.It is effectively increased the zero point positioning precision relative to motor rotor magnetic steel position of encoder.
The foregoing is only the preferable possible embodiments of the present invention, not thereby limit to the scope of the claims of the present invention, therefore the equivalence that every utilization description of the invention and accompanying drawing content are made changes, and is both contained in protection scope of the present invention.
Claims (5)
1., with an AC servo motor assembly technology for brake, it comprises the following steps:
(1) installation of stator winding, rotor, drive end bearing bracket, rear end cap is first completed；
(2) pass to unidirectional current to stator winding, rotor magnetic steel is locked in a certain fixed angle of radial circumference, determines the dead-center position of rotor magnetic steel；
(3) encoder zero-crossing detector is utilized to find the actual zero point of encoder；
(4) the actual zero point making encoder is corresponding with the dead-center position of rotor magnetic steel consistent, and the encoder finding zero point is installed on the Rotor terminal of locked position；
(5) motor back cover is installed；
(6) brake passes to unidirectional current, opens band-type brake, brake is installed in arrester shell body, completes assembling.
2. according to the AC servo motor assembly technology with brake described in claim 1, it is characterized in that, in (1st) step, including: stator winding is press-fited in motor case, the fore bearing of rotor is press-fited in the bearing chamber of drive end bearing bracket, rotor passes stator winding, installs motor front end cover, installs back end cover for motor.
3., according to the AC servo motor assembly technology with brake described in claim 1, it is characterised in that in (2nd) step, being given the unidirectional current stating stator winding logical is 5V unidirectional current.
4., according to the AC servo motor assembly technology with brake described in claim 3, it is characterised in that wherein the U of stator winding connects DC power anode, V, W connect DC power cathode.
5. according to the AC servo motor assembly technology with brake described in claim 1, it is characterised in that in (6th) step, pass to 24V unidirectional current to brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743564.4A CN104393716B (en) | 2014-12-08 | 2014-12-08 | A kind of AC servo motor assembly technology with brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743564.4A CN104393716B (en) | 2014-12-08 | 2014-12-08 | A kind of AC servo motor assembly technology with brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104393716A CN104393716A (en) | 2015-03-04 |
| CN104393716B true CN104393716B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410743564.4A Active CN104393716B (en) | 2014-12-08 | 2014-12-08 | A kind of AC servo motor assembly technology with brake |
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| Country | Link |
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| CN (1) | CN104393716B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953582A (en) * | 2018-06-21 | 2018-12-07 | 长春花明科技有限公司 | A kind of list worm gear twin worm deceleration device initialization gap removing method |
| CN110971055A (en) * | 2019-12-19 | 2020-04-07 | 南京南微电机有限公司 | AC servo motor with power-off brake |
Citations (8)
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|---|---|---|---|---|
| CN201136727Y (en) * | 2007-11-20 | 2008-10-22 | 苏州通润驱动设备股份有限公司 | Small-sized permanent magnet synchronous gearless traction machine |
| CN201286055Y (en) * | 2008-10-20 | 2009-08-05 | 李树国 | Salient pole permanent magnet synchronous motor |
| CN201393112Y (en) * | 2009-04-14 | 2010-01-27 | 无锡市亨达电机有限公司 | Electricity-obtained brake and coder installation structure of variable frequency motor |
| CN201533213U (en) * | 2009-10-30 | 2010-07-21 | 无锡新大力电机有限公司 | Encoder and brake all-in-one structure used for electric vehicle |
| CN102025228A (en) * | 2010-08-12 | 2011-04-20 | 许晓华 | Composite structure of motor encoder coded disc and electromagnetic brake |
| CN202798352U (en) * | 2012-08-27 | 2013-03-13 | 无锡华达电机有限公司 | Mounting structure for brake and encoder of motor |
| CN203143883U (en) * | 2013-03-15 | 2013-08-21 | 北京北超伺服技术有限公司 | Asynchronous servo toothless elevator traction machine |
| CN203219110U (en) * | 2012-04-24 | 2013-09-25 | 日本电产三协株式会社 | Motor with brake |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1163036A (en) * | 1997-08-26 | 1999-03-05 | Isuzu Motors Ltd | Brake with built-in ac servo motor |
-
2014
- 2014-12-08 CN CN201410743564.4A patent/CN104393716B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201136727Y (en) * | 2007-11-20 | 2008-10-22 | 苏州通润驱动设备股份有限公司 | Small-sized permanent magnet synchronous gearless traction machine |
| CN201286055Y (en) * | 2008-10-20 | 2009-08-05 | 李树国 | Salient pole permanent magnet synchronous motor |
| CN201393112Y (en) * | 2009-04-14 | 2010-01-27 | 无锡市亨达电机有限公司 | Electricity-obtained brake and coder installation structure of variable frequency motor |
| CN201533213U (en) * | 2009-10-30 | 2010-07-21 | 无锡新大力电机有限公司 | Encoder and brake all-in-one structure used for electric vehicle |
| CN102025228A (en) * | 2010-08-12 | 2011-04-20 | 许晓华 | Composite structure of motor encoder coded disc and electromagnetic brake |
| CN203219110U (en) * | 2012-04-24 | 2013-09-25 | 日本电产三协株式会社 | Motor with brake |
| CN202798352U (en) * | 2012-08-27 | 2013-03-13 | 无锡华达电机有限公司 | Mounting structure for brake and encoder of motor |
| CN203143883U (en) * | 2013-03-15 | 2013-08-21 | 北京北超伺服技术有限公司 | Asynchronous servo toothless elevator traction machine |
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| CN104393716A (en) | 2015-03-04 |
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