CN106640857A - Stamping servo compensation system and working process thereof - Google Patents
Stamping servo compensation system and working process thereof Download PDFInfo
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- CN106640857A CN106640857A CN201611268641.0A CN201611268641A CN106640857A CN 106640857 A CN106640857 A CN 106640857A CN 201611268641 A CN201611268641 A CN 201611268641A CN 106640857 A CN106640857 A CN 106640857A
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- servo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Presses (AREA)
Abstract
The invention relates to a stamping servo compensation system and a working process thereof. The stamping servo compensation system is composed of a human-computer interaction interface, a PLC motion controller, a hydraulic servo pump system, a servo proportional valve, a position sensor, pressure sensors, an electric control element, a hydraulic cylinder body and a stamping fixing template. One way of the PLC motion controller is connected with a servo pump drive which is connected with the servo pump. The servo pump is connected with the first pressure sensor. The other way of the PLC motion controller is connected to the servo proportional valve controlled by the PLC motion controller. The other way of the PLC motion controller is connected with the second pressure sensor and a displacement sensor. The displacement sensor is used for detecting the position of the stamping fixing mould plate. The stamping servo compensation system has the beneficial effects that by the utilization of the servo hydraulic drive and a position sensor feedback position closed-loop control system, high-precision pressure, position and synchronous control can be achieved; the servo pump driven by a servo motor is utilized, during standby, the motor does not rotate, and the energy-saving effect is remarkable; and torque and rotating speed of the servo motor are controlled precisely, and high-precision pressure and flow control is achieved.
Description
Technical field
The present invention relates to a kind of stamping servo compensation system and its course of work, are applied to powder metallurgical technology.
Background technology
In powder metallurgy product forming process, when being washed into type using multilayer film, stamping length is different, and stamping profiled section molding
Pressure suffered by direction is consistent, and according to elastic deformation relation, the elastic deformation amount of stamping is different.When upper refunds journey withdrawal of pressure,
Product is lifted off the little stamping of elastic deformation by the big bottom punch of elastic deformation, causes product in the demoulding because subregion is without effective
Support and crack.Cause the generation of waste product, in order to eliminate impact of the elastic deformation to product during this, need for becoming
Arrange independent deformation compensation system to improve such case on the little stamping fixed form of shape amount.
The content of the invention
The present invention is directed to drawbacks described above, it is therefore intended that provide a kind of achievable high-precision control stamping servo compensation system and its
The course of work.
For this technical solution used in the present invention it is：The present invention is watched by human-computer interaction interface, PLC motion controllers, hydraulic pressure
Take electric controling element and the hydraulic cylinders such as pumping system, servo-ratio row valve, position sensor, pressure transducer, stamping stent
Plate is constituted；
The PLC motion controllers connect servopump driving all the way, and the servopump drive connection servopump, the servopump connect
It is connected to pressure transducer one；
Another road of the PLC motion controllers is connected to the servo proportion being controlled by it, and is connected with two He of pressure transducer
Displacement transducer, institute's displacement sensors are to detect the position of stamping fixed form.
The course of work of stamping servo compensation system, follows the steps below：
1）System electrification is initialized；
2）Pass throughHuman-computer interaction interface andPLC motion controllers start Servo drive system of pump,Pressure transducer reality
When feedback system pressure to controller, the system after system pressure setting value that reaches enters operation permission state；
3）Bullet becomes compensation device zero point correction,Position sensor Real-time FeedbackThe position of fixed punch template is givenPLC motion controls
Device processed, when physical location withHuman-computer interaction interface display location corrects zero-bit when producing deviation automatically；
4）System operation, bySetting compensation displacement and default operating pressure on human-computer interaction interface,PLC motion controls
Device processed according toPosition sensor Real-time CollectionThe position of fixed punch template, will be actually detected by PID control and velocity feed forward
Position is compared with program setting position, rightThe opening degree of servo proportion carries out smooth linear control, controlHydraulic cylinder
Internal uninterrupted and then controlThe physical location of fixed punch template, forms large closed-loop control；
5）CauseThe born pressure of fixed punch template is otherwise varied according to product difference, when physical location is unable to reach default position
When putting,Pressure transducer Real-time Feedback pressure value is givenPLC motion controllers, by PID control by actually detected pressure value with
Programmed values are compared, rightThe opening degree of servo proportion carries out closed loop control, controlFlow in hydraulic cylinder is big
Little and then guarantee compensates pressure and reaches necessary requirement, it is ensured that the forming requirements of final products；
6）After the completion of product stripping,PLC motion controllers are controlledServo proportion opening degree, makesFixed punch template is quick
Origin position is returned to, prepares the cyclic pressing in next cycle.
It is an advantage of the invention that：1）Driven using servo-hydraulic and position sensor feedback position-force control system, can
High-precision pressure, position and Synchronization Control are realized, system repetitive positioning accuracy is up to 0.05mm.
2）The servopump driven using servomotor, according to setting pressure size fuel feeding on demand, when standby, motor is without turning
It is dynamic, electric energy is hardly consumed, energy-saving effect is notable；The moment of torsion and rotating speed of precise control servomotor, realizes high-precision pressure
And flow-control；Thermal equilibrium temperature is low, and motor is operated on demand, and temperature rise and noise are all less, Hydraulic Elements life-span length.
Description of the drawings
Fig. 1 is control system schematic diagram of the present invention.
Fig. 2 is control system figure of the present invention.
Specific embodiment
As shown in Figure 1：The present invention is by human-computer interaction interface, PLC motion controllers, hydraulic servo pumping system, servo-ratio row
The electric controling elements such as valve, position sensor, pressure transducer and hydraulic cylinder, stamping fixed form composition；
The PLC motion controllers connect servopump driving all the way, and the servopump drive connection servopump, the servopump connect
It is connected to pressure transducer one；
Another road of the PLC motion controllers is connected to the servo proportion being controlled by it, and is connected with two He of pressure transducer
Displacement transducer, institute's displacement sensors are to detect the position of stamping fixed form.
The course of work of stamping servo compensation system, follows the steps below：
1）System electrification is initialized；
2）Pass throughHuman-computer interaction interface andPLC motion controllers start Servo drive system of pump,Pressure transducer reality
When feedback system pressure to controller, the system after system pressure setting value that reaches enters operation permission state；
3）Bullet becomes compensation device zero point correction,Position sensor Real-time FeedbackThe position of fixed punch template is givenPLC motion controls
Device processed, when physical location withHuman-computer interaction interface display location corrects zero-bit when producing deviation automatically；
4）System operation, bySetting compensation displacement and default operating pressure on human-computer interaction interface,PLC motion controls
Device processed according toPosition sensor Real-time CollectionThe position of fixed punch template, will be actually detected by PID control and velocity feed forward
Position is compared with program setting position, rightThe opening degree of servo proportion carries out smooth linear control, controlHydraulic cylinder
Internal uninterrupted and then controlThe physical location of fixed punch template, forms large closed-loop control；
5）CauseThe born pressure of fixed punch template is otherwise varied according to product difference, when physical location is unable to reach default position
When putting,Pressure transducer Real-time Feedback pressure value is givenPLC motion controllers, by PID control by actually detected pressure value with
Programmed values are compared, rightThe opening degree of servo proportion carries out closed loop control, controlFlow in hydraulic cylinder is big
Little and then guarantee compensates pressure and reaches necessary requirement, it is ensured that the forming requirements of final products；
6）After the completion of product stripping,PLC motion controllers are controlledServo proportion opening degree, makesFixed punch template is quick
Origin position is returned to, prepares the cyclic pressing in next cycle.
As shown in Figure 2：Elastic deformation compensation system adopts close-loop control mode, is primarily due to its using closed loop control
Motility, accuracy, speed controllability and different loads change under keep accurate adjustment ability.Feedback device is sent
Position feed back signal and ideal position compare.Error and proportional gain（By site error unit be converted into output voltage or
The ratio of current signal）It is multiplied to exporting generation effect.Error is bigger, and the output signal for correcting this error is bigger.Control
Device is integrated（I）Gain, differential（D）Gain and feedforward gain are improving ratio（P）Gain；Control system shown in Fig. 2 shows
How various gain factors combine to complete accurate closed loop control.
Claims (2)
1. stamping servo compensation system, it is characterised in that by human-computer interaction interface, PLC motion controllers, hydraulic servo pump system
Electric controling element and the hydraulic cylinder such as system, servo-ratio row valve, position sensor, pressure transducer, stamping fixed form composition；
The PLC motion controllers connect servopump driving all the way, and the servopump drive connection servopump, the servopump connect
It is connected to pressure transducer one；
Another road of the PLC motion controllers is connected to the servo proportion being controlled by it, and is connected with two He of pressure transducer
Displacement transducer, institute's displacement sensors are to detect the position of stamping fixed form.
2. the course of work of stamping servo compensation system, it is characterised in that follow the steps below：
1）System electrification is initialized；
2）Pass throughHuman-computer interaction interface andPLC motion controllers start Servo drive system of pump,Pressure transducer is real-time
To controller, after reaching system pressure setting value, system enters operation permission state to feedback system pressure；
3）Bullet becomes compensation device zero point correction,Position sensor Real-time FeedbackThe position of fixed punch template is givenPLC motion controls
Device processed, when physical location withHuman-computer interaction interface display location corrects zero-bit when producing deviation automatically；
4）System operation, bySetting compensation displacement and default operating pressure on human-computer interaction interface,PLC motion controls
Device processed according toPosition sensor Real-time CollectionThe position of fixed punch template, will be actually detected by PID control and velocity feed forward
Position is compared with program setting position, rightThe opening degree of servo proportion carries out smooth linear control, controlHydraulic cylinder
Internal uninterrupted and then controlThe physical location of fixed punch template, forms large closed-loop control；
5）CauseThe born pressure of fixed punch template is otherwise varied according to product difference, when physical location is unable to reach default position
When putting,Pressure transducer Real-time Feedback pressure value is givenPLC motion controllers, by PID control by actually detected pressure value with
Programmed values are compared, rightThe opening degree of servo proportion carries out closed loop control, controlFlow in hydraulic cylinder is big
Little and then guarantee compensates pressure and reaches necessary requirement, it is ensured that the forming requirements of final products；
6）After the completion of product stripping,PLC motion controllers are controlledServo proportion opening degree, makesFixed punch template is quickly returned
To origin position, prepare the cyclic pressing in next cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268641.0A CN106640857A (en) | 2016-12-31 | 2016-12-31 | Stamping servo compensation system and working process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268641.0A CN106640857A (en) | 2016-12-31 | 2016-12-31 | Stamping servo compensation system and working process thereof |
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| CN106640857A true CN106640857A (en) | 2017-05-10 |
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| CN201611268641.0A Pending CN106640857A (en) | 2016-12-31 | 2016-12-31 | Stamping servo compensation system and working process thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719991A (en) * | 2018-12-18 | 2019-05-07 | 博众精工科技股份有限公司 | A kind of pressing device and compress control method |
| CN113534658A (en) * | 2021-08-25 | 2021-10-22 | 广东电网有限责任公司广州供电局 | Double closed-loop control system and method |
| CN114103240A (en) * | 2021-11-12 | 2022-03-01 | 重庆江东机械有限责任公司 | Control system and control method for hydraulic press stretching pad |
| CN114755969A (en) * | 2022-03-22 | 2022-07-15 | 中国第一汽车股份有限公司 | Control method and system for assisting servo motor driving through weighing and displacement sensor |
| CN114769491A (en) * | 2022-04-29 | 2022-07-22 | 中国重型机械研究院股份公司 | Intelligent speed regulation control system and method for large die forging press |
| CN114769491B (en) * | 2022-04-29 | 2024-06-04 | 中国重型机械研究院股份公司 | Intelligent speed regulation control system and method for large die forging press |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215355A (en) * | 2015-10-30 | 2016-01-06 | 扬州市海力精密机械制造有限公司 | Powder metallurgy die elastic deformation compensation mechanism and the course of work thereof |
| CN106064192A (en) * | 2016-04-05 | 2016-11-02 | 天津市天锻压力机有限公司 | A kind of hydraulic servo control system of liquid-filling shaping hydraulic machine |
| CN206513656U (en) * | 2016-12-31 | 2017-09-22 | 扬州市海力精密机械制造有限公司 | Stamping servo compensation system |
-
2016
- 2016-12-31 CN CN201611268641.0A patent/CN106640857A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215355A (en) * | 2015-10-30 | 2016-01-06 | 扬州市海力精密机械制造有限公司 | Powder metallurgy die elastic deformation compensation mechanism and the course of work thereof |
| CN106064192A (en) * | 2016-04-05 | 2016-11-02 | 天津市天锻压力机有限公司 | A kind of hydraulic servo control system of liquid-filling shaping hydraulic machine |
| CN206513656U (en) * | 2016-12-31 | 2017-09-22 | 扬州市海力精密机械制造有限公司 | Stamping servo compensation system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719991A (en) * | 2018-12-18 | 2019-05-07 | 博众精工科技股份有限公司 | A kind of pressing device and compress control method |
| CN113534658A (en) * | 2021-08-25 | 2021-10-22 | 广东电网有限责任公司广州供电局 | Double closed-loop control system and method |
| CN114103240A (en) * | 2021-11-12 | 2022-03-01 | 重庆江东机械有限责任公司 | Control system and control method for hydraulic press stretching pad |
| CN114103240B (en) * | 2021-11-12 | 2023-07-21 | 重庆江东机械有限责任公司 | Control system and control method for hydraulic press stretching pad |
| CN114755969A (en) * | 2022-03-22 | 2022-07-15 | 中国第一汽车股份有限公司 | Control method and system for assisting servo motor driving through weighing and displacement sensor |
| CN114769491A (en) * | 2022-04-29 | 2022-07-22 | 中国重型机械研究院股份公司 | Intelligent speed regulation control system and method for large die forging press |
| CN114769491B (en) * | 2022-04-29 | 2024-06-04 | 中国重型机械研究院股份公司 | Intelligent speed regulation control system and method for large die forging press |
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