CN209447046U - A kind of high-precision AC servomechanism - Google Patents
A kind of high-precision AC servomechanism Download PDFInfo
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- CN209447046U CN209447046U CN201920289936.9U CN201920289936U CN209447046U CN 209447046 U CN209447046 U CN 209447046U CN 201920289936 U CN201920289936 U CN 201920289936U CN 209447046 U CN209447046 U CN 209447046U
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Abstract
The utility model relates to AC servo art drive systems field, in particular to a kind of high-precision AC servomechanism.It includes the AC servo motor connecting with operation component, and control system, control system includes controller, displacement signal for detecting operation component operation displacement and will test feeds back to the position detecting device of controller, servo-driver, and feedback signal adjusts the encoder of rotor rotational angle in AC servo motor to servo-driver, servo-driver continues value of feedback to feed back to controller after servo-driver receives the feedback signal that encoder is sent, value of feedback is compared by controller with target value, and the signal of control AC servo motor operating status is sent to AC servo motor.The utility model can use while can guarantee the operation of machine monolithic stability and running precision in plant site and automatic assembly line, and structure is simple, and working service is convenient, energy conservation, work efficiency is high, strong interference immunity.
Description
Technical field
The utility model relates to AC servo art drive systems field, in particular to a kind of high-precision AC servo drive
System.
Background technique
With rapid economic development, requirement of the people to Product Precision is also higher and higher, and coordinate measuring machine just plays more
Carry out more important role, traditional three coordinate measuring machine transmission system generally uses DC servo transmission system, although direct current is watched
It is simpler to take transmission system control, but traditional DC servo transmission system output power is small, motor volume is big, running precision
Difference, unstable and DC servo transmission system the motor of control are brush motor, and brush motor will periodically replace brush, take
When it is laborious, maintenance is also inconvenient；The anti-interference of DC servo transmission system is poor simultaneously, and equipment must be far from strong magnetic when in use
Environment, is not readily used for workshop and automatic assembly line, and use environment is restricted.
201136605 Y of patent CN discloses a kind of pre-loosing roller of guy barrel of cigarette packaging machine permanent magnetic Ac servo power train
System, is made of permanent-magnet alternating current servo motor, control panel and servo-driver, and permanent-magnet alternating current servo motor passes through control line and watches
Driver connection is taken, servo-driver is connect by control line with control panel.
Above-mentioned patent is to control servo-driver by a control panel, controls permanent magnetic Ac servo by servo-driver
Motor, although permanent-magnet alternating current servo motor running precision is high, movement stops transitions smooth, it cannot be shown by terminal
Device carries out parameter setting in advance, without feedback module, cannot form complete closed-loop control system, causes to hand over to a certain extent
Flow servo motor operation precision is poor, poor reliability, can not achieve the stable operation and precisely operation of equipment, energy-saving effect
Difference.
Summary of the invention
In view of the deficienciess of the prior art, technical problem to be solved by the utility model is to provide one kind can guarantee
It can be used in plant site and automatic assembly line while the operation of machine monolithic stability and running precision, working service side
Just, energy conservation, work efficiency is high, strong interference immunity, the simple high-precision AC servomechanism of structure.
The utility model to achieve the above object the technical solution adopted is that: a kind of high-precision AC servomechanism,
The AC servo motor being connect by retarder with operation component including moving walking for running component in driving equipment, with
And the control system for controlling AC servo motor operating status, the control system include controller, for detecting operation
Component operation displacement and the displacement signal that will test feed back to the position detecting device of controller, for receiving controller
The driving signal of transmission and the servo-drive that driving signal is sent to AC servo motor to drive AC servo motor to rotate
Device and feedback signal adjust the encoder of rotor rotational angle in AC servo motor, the servo to servo-driver
Servo-driver continues value of feedback to feed back to controller after driver receives the feedback signal that encoder is sent, and controller will
Value of feedback is compared with target value, and sends the signal of control AC servo motor operating status to AC servo motor.
Above-mentioned high-precision AC servomechanism further includes the display terminal for showing setting parameter, described aobvious
Show that terminal, servo-driver are electrically connected with the controller.
Above-mentioned high-precision AC servomechanism, position detecting device are Grating examinations device, the Grating examinations
Device includes reading head and grating scale, and the reading head is fixedly connected with operation component, the grating scale and equipment fixation member
It is fixedly connected.
Above-mentioned high-precision AC servomechanism, the retarder include by crawler belt and AC servo motor
Second belt wheel of the first pulley connection on motor shaft, with the second belt wheel by the gear of gear axis connection, and with gear phase
The rack gear of engagement, the rack gear is fixed on the rack and gear moves reciprocatingly on rack gear, further includes eliminating wheel and rack
Between gap clearance eliminating mechanism, the clearance eliminating mechanism include be sheathed on gear shaft it is outer be rotatablely connected with gear shaft it is inclined
The eccentric body of core structure setting and the connector being fixedly connected with eccentric body, the other end lower section of the connector, which is equipped with, to be used for
The support base for supporting fixedly connected part further includes pushing connector to connect automatically when generating gap between wheel and rack
The compression elastic parts that part drives eccentric body rotation finally wheel and rack to be engaged always, it is described to compress the one of elastic parts
End is fixedly connected by fixed frame with support base, the one side perpendicular contact setting of the other end and connector, the compression elasticity
Component is threadedly coupled with fixed frame.
Above-mentioned high-precision AC servomechanism, the eccentric body include the eccentric through-hole of eccentric setting, the tooth
Wheel shaft passes through eccentric through-hole and is separately installed on the junction gear shaft at gear shaft Yu eccentric through-hole both ends for gear shaft
The bearing rotated in the eccentric through-hole of eccentric body, the diameter of the first pulley is less than the second pulley diameters.
Above-mentioned high-precision AC servomechanism, the compression elastic parts include being equipped with externally threaded support sleeve
Cylinder, the spring being installed in sleeve, the supporting-core being connect with spring top, and the steel ball with rotation connection at the top of supporting-core.
Above-mentioned high-precision AC servomechanism, the spring is butterfly spring, and spring is preset with certain
Power.
The beneficial effect of the utility model high-precision AC servomechanism is: by setting control system and passing through position
The closed-loop control system that detection device, servo-driver and encoder form signal transmitting with signal feedback is set, signal control is passed through
AC servo motor operating status processed, AC servo motor running precision is high, while the eccentric body by being provided with eccentric structure
The connector that is fixedly connected with eccentric body and compression elastic parts on connector is acted on, eliminates gap always to reach
Purpose, ensure that the stability of transmitting power and the accuracy of positioning, the final monolithic stability operation and operation for realizing machine
Precision.The configuration of the present invention is simple, it is ensured that the operation of machine monolithic stability and while running precision can plant site and from
It is used in dynamicization assembly line, working service is convenient, energy conservation, work efficiency is high, strong interference immunity.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the portion A enlarged drawing；
Fig. 3 is the utility model gap-eliminating structure schematic diagram；
Fig. 4 is that the utility model compresses elastic parts structural schematic diagram；
Fig. 5 is the utility model control system electric operation control circuit figure.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the utility model.
As shown in Fig. 1,2,3,4,5, a kind of high-precision AC servomechanism, including for operation portion in driving equipment
The AC servo motor 3 of the movement walking of part 1 being connect by retarder 2 with operation component 1, and for controlling AC servo electricity
The control system of 3 operating status of machine, control system include controller 4, for detecting operation component 1 operation displacement and will test
To displacement signal feed back to the position detecting device of controller 4, for receiving the driving signal of the transmission of controller 4 and will drive
Dynamic signal be sent to AC servo motor 3 with drive AC servo motor 3 rotate servo-driver 5 and feedback signal to
For servo-driver 5 to adjust the encoder of rotor rotational angle in AC servo motor 3, servo-driver 5 receives encoder
Value of feedback is continued to feed back to controller 4 by servo-driver 5 after the feedback signal of transmission, and controller 4 is by value of feedback and target value
It is compared, and sends the signal of control 3 operating status of AC servo motor to AC servo motor 3.It further include for showing
The display terminal 6 of parameter is set, and display terminal, servo-driver 5 are electrically connected with controller 4.
Position detecting device is Grating examinations device, and Grating examinations device includes reading head 7 and grating scale 8, reading head 7 with
Operation component 1 is fixedly connected, and grating scale 8 is fixedly connected with equipment fixation member 9.
Retarder includes the second belt wheel being connect by crawler belt 10 with the first pulley on the motor shaft of AC servo motor 3
11, pass through the gear 13 that gear shaft 12 is connect, and the rack gear 14 being meshed with gear 13 with the second belt wheel 11, rack gear 14 is fixed
In rack 15 and gear 13 moves reciprocatingly on rack gear 14, further includes the gap for eliminating gap between gear 13 and rack gear 14
Eliminating machine, clearance eliminating mechanism include be sheathed on the outer eccentric structure being rotatablely connected with gear shaft 12 of gear shaft 12 be arranged it is inclined
Heart body 16 and the connector 17 being fixedly connected with eccentric body 16, the other end lower section of connector 17, which is equipped with, is used to support fixed company
The support base 18 of fitting 17 further includes pushing connector 17 to connect automatically when generating gap between gear 13 and rack gear 14
Part 17 drives eccentric body 16 to rotate the compression elastic parts for finally gear 13 being engaged always with rack gear 14, compresses elastic parts
One end be fixedly connected with support base 18 by fixed frame 19, the one side perpendicular contact of the other end and connector 17 is arranged, and presses
Tight elastic parts is threadedly coupled with fixed frame 19, and the diameter of first pulley is less than the second pulley diameters, to realize the purpose slowed down.
Eccentric body 16 includes the eccentric through-hole of eccentric setting, and gear shaft 12 passes through eccentric through-hole and in gear shaft 12 and bias
The axis rotated in the eccentric through-hole of eccentric body for gear shaft 12 is separately installed on the junction gear shaft 12 at through-hole both ends
Hold 20.
Compressing elastic parts includes being equipped with externally threaded stop sleeve 21, the spring 22 being installed in sleeve, with spring top
The supporting-core 23 of portion's connection, and with the steel ball 24 that is rotatablely connected at the top of supporting-core 23.Spring is butterfly spring, and spring is default
There is certain tension.
Utility model works principle: firstly, the setting displacement of reading head is set on terminal display 6, then,
The actual displacement amount of startup power supply, the operation component that Grating examinations device will test feeds back to controller 4, and controller 4 will be real
Border displacement is compared with setting displacement, and when actual displacement amount is less than setting displacement, controller 4 sends driving servo
For the signal of driver 5 to servo-driver, the signal that servo-driver 5 sends driving AC servo motor 3 is electric to AC servo
Machine 3, the driving of AC servo motor 3 is until reach setting displacement；After startup power supply, while AC servo motor 3 watches exchange
The circle number for taking the rotation of motor 3 feeds back to servo-driver 5, and servo-driver 5 further feeds back to controller, and controller 4 will be handed over
Flow servo motor 3 rotate circle number be converted into operation component operation displacement, and will operation displacement with set displacement into
Row compares, and when actual displacement amount is less than setting displacement, signal to the servo that controller 4 sends driving servo-driver 5 is driven
Dynamic device, servo-driver send the signal of driving AC servo motor 3 to AC servo motor 3, and AC servo motor 3 drives directly
To setting displacement is reached, to realize to the real time monitoring of AC servo motor rotational angle, it is thusly-formed closed-loop control system.
Control system in the utility model makes AC servo motor operation accurate, it is ensured that the operation of machine monolithic stability and operation essence
It can be used in plant site and automatic assembly line while spending.
For above-described embodiment simply to illustrate that the technical ideas and features of the present invention, its purpose is allows this field
Interior those of ordinary skill can understand the content of the utility model and implement accordingly, can not limit the utility model with this
Protection scope.The equivalent changes or modifications that all essence according to the content of the present invention is made, should all cover in this reality
With in novel protection scope.
Claims (7)
1. a kind of high-precision AC servomechanism, it is characterised in that: including for operation component movement row in driving equipment
The AC servo motor being connect by retarder with operation component walked, and for controlling AC servo motor operating status
Control system, the control system include controller, displacement component operation displacement and will test for detecting operation
Signal feeds back to the position detecting device of controller, for receiving the driving signal of controller transmission and being sent to driving signal
AC servo motor with drive AC servo motor rotate servo-driver and feedback signal to servo-driver to adjust
The encoder of rotor rotational angle in AC servo motor, after the servo-driver receives the feedback signal of encoder transmission
Servo-driver continues value of feedback to feed back to controller, and value of feedback is compared by controller with target value, and sends control
The signal of AC servo motor operating status is to AC servo motor.
2. high-precision AC servomechanism according to claim 1, it is characterized in that: further including for showing setting ginseng
Several display terminals, the display terminal, servo-driver are electrically connected with the controller.
3. high-precision AC servomechanism according to claim 2, it is characterized in that: position detecting device is grating inspection
Device is surveyed, the Grating examinations device includes reading head and grating scale, and the reading head is fixedly connected with operation component, the light
Grid ruler is fixedly connected with equipment fixation member.
4. high-precision AC servomechanism according to claim 3, it is characterized in that: the retarder includes passing through
Second belt wheel of the first pulley connection on the motor shaft of crawler belt and AC servo motor, passes through gear axis connection with the second belt wheel
Gear, and the rack gear being meshed with gear, the rack gear is fixed on the rack and gear moves reciprocatingly on rack gear, also
Clearance eliminating mechanism including eliminating gap between wheel and rack, the clearance eliminating mechanism include be sheathed on gear shaft it is outer with
The eccentric body of the eccentric structure setting of gear shaft rotation connection and the connector being fixedly connected with eccentric body, the connector
It is equipped with the support base for being used to support fixedly connected part below the other end, further includes automatic when generating gap between wheel and rack
The compression elastic parts for pushing connector to make connector that eccentric body rotation be driven finally wheel and rack to be engaged always, institute
The one end for stating compression elastic parts is fixedly connected by fixed frame with support base, the one side perpendicular contact of the other end and connector
Setting, the compression elastic parts are threadedly coupled with fixed frame.
5. high-precision AC servomechanism according to claim 4, it is characterized in that: the eccentric body is set including bias
The eccentric through-hole set, the gear shaft pass through eccentric through-hole and divide on the junction gear shaft at gear shaft Yu eccentric through-hole both ends
The bearing rotated in the eccentric through-hole of eccentric body for gear shaft is not installed, the diameter of the first pulley is less than the second band
Wheel diameter.
6. high-precision AC servomechanism according to claim 5, it is characterized in that: the compression elastic parts includes
Equipped with externally threaded stop sleeve, the spring being installed in sleeve, the supporting-core being connect with spring top, and with supporting-core top
The steel ball of portion's rotation connection.
7. high-precision AC servomechanism according to claim 6, it is characterized in that: the spring is butterfly spring,
And spring is preset with certain tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289936.9U CN209447046U (en) | 2019-03-07 | 2019-03-07 | A kind of high-precision AC servomechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289936.9U CN209447046U (en) | 2019-03-07 | 2019-03-07 | A kind of high-precision AC servomechanism |
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| Publication Number | Publication Date |
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| CN209447046U true CN209447046U (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920289936.9U Active CN209447046U (en) | 2019-03-07 | 2019-03-07 | A kind of high-precision AC servomechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720445A (en) * | 2021-07-16 | 2021-11-30 | 内蒙古普析通用仪器有限责任公司 | Photometer grating control mechanism based on direct current motor and encoder and driving method |
-
2019
- 2019-03-07 CN CN201920289936.9U patent/CN209447046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720445A (en) * | 2021-07-16 | 2021-11-30 | 内蒙古普析通用仪器有限责任公司 | Photometer grating control mechanism based on direct current motor and encoder and driving method |
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