CN102183911A - Control system of servo press machine - Google Patents
Control system of servo press machine Download PDFInfo
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- CN102183911A CN102183911A CN 201010610447 CN201010610447A CN102183911A CN 102183911 A CN102183911 A CN 102183911A CN 201010610447 CN201010610447 CN 201010610447 CN 201010610447 A CN201010610447 A CN 201010610447A CN 102183911 A CN102183911 A CN 102183911A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 238000006073 displacement reaction Methods 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 102100035861 Cytosolic 5'-nucleotidase 1A Human genes 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a control system of a servo press machine in the field of press machines. The output power port of a driving unit is connected with a servo motor, the output port of a motion controller is connected with and in high-speed serial communication with the input port of the driving unit through an SSCNET III (Servo System Control network III)high-speed optical cable; the input end of the motion controller is connected with an expansion substrate, an I/O (input/output) mixing module and a high-speed counting module for detecting the slider position, and an analogue-digital conversion module are mounted on the expansion substrate; a PLC (programmable logic controller) input terminal strip and a PLC output terminal strip are respectively connected with the I/O mixing module; an angle sensor is mounted on the end part of a press machine crankshaft, the signal line of the angle sensor is accessed into a high-speed counting module and provides a crankshaft turning angle signal to the high-speed counting module; the movable magnetic ring of a magnetostriction displacement sensor is fixedly connected on the press machine slider, the signal line of the magnetostriction displacement sensor is accessed into an analogue-digital conversion module and provides a slider displacement signal to the analogue-digital conversion module. The control system can directly detect the slider displacement amount to form a closed ring, and the detection resolution can achieve 0.01 mm.
Description
Technical field
The present invention relates to a kind of control system of servo-pressing machine, belong to pressing machine control technology field.
Background technology
There is plurality of operating modes in servo-pressing machine, and the user calls suitable press motion pattern according to the difference of Sheet Metal Forming Technology, sets appropriate motor pattern parameter, and this just requires pressing machine that a kind of user-friendly friendly man-machine interface of calling can be provided.
Pressing machine displacement parameter is the basic parameter of the motor-driven work of controlled pressure, and the displacement of crank-type press ram becomes nonlinear relationship with the angle that bent axle/connecting rod turns over.General running angle signal by collecting crankshaft calculates pressing machine by approximate formula and controls needed slider displacement amount information.As, carry out signals collecting by a synchronization encoders being installed in crankshaft end, this mode can detect the angle value that slide block turns over, but bent axle is to link to each other with connecting rod by connecting rod cap, drive slide block by link motion and carry out rectilinear motion up and down, because there are factors such as movement clearance and part tolerance in connecting rod cap, connecting rod, the signal of actual acquisition can only reflect the displacement of slide block indirectly, and error is bigger.
Summary of the invention
The objective of the invention is to, overcome problems of the prior art, a kind of control system of servo-pressing machine is provided, control is reliable, accurately the displacement of detected pressures machine slide block.
For solving above technical matters, the control system of a kind of servo-pressing machine provided by the present invention, comprise servomotor, driver element, motion controller and PLC, the out-put supply port of described driver element is connected with described servomotor, the signal port of described driver element is connected with the scrambler of described servomotor, the output port of described motion controller is connected with the input port of described driver element by SSCNET III high speed optical cable and carries out high speed serial communication, and the input end of described motion controller is connected with expansion substrate; High speed counting module, the analog-to-digital conversion module of I/O mixing module and detection slide position amount are installed on the described expansion substrate, and by described expansion substrate and described motion controller communication; PLC Input terminal block and PLC lead-out terminal row insert described I/O mixing module respectively; Angular transducer is installed in the end of press crankshaft, and its signal wire inserts described high speed counting module and bent axle is turned over angle signal and offers described high speed counting module; The movable magnet ring of magnetostrictive displacement sensor is fixedly connected on the press ram, and its signal wire inserts described analog-to-digital conversion module and slider displacement amount signal is offered described analog-to-digital conversion module.
With respect to prior art, the present invention has obtained following beneficial effect: PLC Input terminal block, PLC lead-out terminal row link to each other with the I/O mixing module by cable, the I/O mixing module is connected on the expansion substrate, angular transducer links to each other with expansion substrate by high speed counting module, and magnetostrictive displacement sensor links to each other with expansion substrate by analog-to-digital conversion module; Motion controller is accepted the signal from PLC Input terminal block, angular transducer, magnetostrictive displacement sensor, carries out centralized control by PLC programming, SFC and servo programe programming; Motion controller carries out high speed serial communication by SSCNETIII high speed optical cable and driver element, the related pressure machine spare that drive controlling is connected with PLC lead-out terminal row; Converting unit is connected with the driver element communication, the startup request is carried out in SFC instruction by motion controller, carry out positioning control by the SFC program of appointment again, and by the positioning control of driver element execution to servomotor, driver element drives servomotor according to the feedback signal of signal that receives and servomotor scrambler.The present invention adopts contactless magnetostrictive displacement sensor directly to detect the slider displacement amount, movable magnet ring is carried out rigid the connection with slide block, when slide block up and down during rectilinear motion, the drive magnet ring moves up and down, thereby form the relative displacement of magnet ring and sounding rod, form the variation in magnetic field, and carry out communication by analog quantity/digital quantity modular converter and expansion substrate with motion controller and be connected; Control system of the present invention directly detects the slider displacement amount, and control system is formed closed loop, and accuracy of detection promotes significantly, and resolution can reach 0.01mm.
As improvement of the present invention, described expansion substrate is connected with touch-screen by the BUS bus cable, and described touch-screen carries out communication by described expansion substrate and described motion controller.Explicit user interface on the touch-screen, all multiparameter settings that the pressing machine action needs and normative choice, information demonstration etc. make control system have good man-machine interface.
As a further improvement on the present invention, be provided with power conversion unit between described driver element and the power supply, the communication port of described power conversion unit is connected with described driver element communication by the protection coordination cable; The changing voltage lead-out terminal of described power conversion unit is connected with voltage input end of described driver element by special-purpose bonding conductor; The input end of dynamic brake is connected with the bus of servomotor, and the output terminal of described dynamic brake is connected with the control power input terminal of described power conversion unit, and the kinetic energy of dragging system fed back in the electrical network when pressing machine was braked.Converting unit converts grid ac voltage to DC voltage and gives driver element, by driver element DC voltage is changed alternating voltage output again servomotor is positioned control; Dynamic brake and converting unit realize the braking kinetic energy of pressing machine is fed back to electrical network.
As preferred version of the present invention, be provided with reactor between described power supply and the described power conversion unit.When electric system was short-circuited, the voltage drop on the reactor was bigger, had played the effect of keeping the busbar voltage level, made the voltage fluctuation on the bus less, had guaranteed the stability of the user's electric equipment operation on the non-fault line.
As preferred version of the present invention, described power conversion unit adopts MR-J3-CV-55K4 type power conversion unit.
As preferred version of the present invention, described driver element adopts MR-J3-DU-55KB4 type driver element.
As preferred version of the present invention, described motion controller adopts Q170M type motion controller.
As preferred version of the present invention, described dynamic brake adopts DBU55K-4 type dynamic brake.
Description of drawings
Fig. 1 is the theory diagram of the control system of servo-pressing machine of the present invention.
Fig. 2 is the wiring diagram of the control system of servo-pressing machine of the present invention.
Fig. 3 is the user interface synoptic diagram of touch-screen.
Among Fig. 1 and Fig. 2: 1, power supply; 2, breaker of plastic casing; 3, reactor; 4, A.C. contactor; 5, power conversion unit; 5a, protection coordination cable; The special-purpose bonding conductor of 5b; 6, driver element; 6a, SSCNET III high speed optical cable; 7, dynamic brake; 8, servomotor; 9, motion controller; 10, expansion substrate; 11, touch-screen; 12, I/O mixing module; 13, PLC Input terminal block; 14, high speed counting module; 15, angular transducer; 16, analog-to-digital conversion module; 17, magnetostrictive displacement sensor; 18, PLC lead-out terminal row.
Among Fig. 3: a, scroll bar form display alarm information; B, angle display; C, angle value show; D, the number of strokes; E, displacement; F, mould number; G, operational mode; H, total amount counting; I, total amount counter switch; J, total amount count resets; K, batch counting; M, batch counting switch; N, batch counting reset; P, batch counting are set; Q, motor speed are set; R, motor speed show; S, slide block current location; T, operational mode; U, status surveillance; V, fault are got rid of; W, the setting of refueling; X, synchronous cam are set; Y, mould number selection; Z, displacement indication.
Embodiment
As shown in Figures 1 and 2, the control system of servo-pressing machine of the present invention comprises breaker of plastic casing 2, reactor 3, A.C. contactor 4, power conversion unit 5, driver element 6, dynamic brake 7, servomotor 8, motion controller 9 and PLC.Power supply 1 is through the power supply input port of breaker of plastic casing 2, reactor 3, A.C. contactor 4 access power conversion units 5, and the communication port CN4 of power conversion unit 5 is connected with CN40 (A) mouthful of communication of driver element by protection coordination cable 5a; The changing voltage lead-out terminal TE2 of power conversion unit 5 is connected with voltage input end of driver element 6 by special-purpose bonding conductor 5b.
The out-put supply port of driver element 6 is connected with servomotor 8, and the signal port CN2 of driver element 6 is connected with the scrambler of servomotor 8.Driver element 6 is carried out by the SFC instruction of motion controller 9 and is started request, carry out positioning control by the SFC program of appointment again, and by the positioning control of driver element 6 execution to servomotor 8, driver element 6 drives servomotor 8 according to the feedback signal of signal that receives and servomotor scrambler.
The input end of dynamic brake 7 is connected with the bus of servomotor, and the output terminal of dynamic brake 7 is connected with control power input terminal L11, the L12 of power conversion unit 5, and the kinetic energy of dragging system fed back in the electrical network when pressing machine was braked.
The output port CN1 of motion controller 9 is connected with the input port CN1A of driver element 6 by SSCNET III high speed optical cable and carries out high speed serial communication, the input end of motion controller 9 is connected with expansion substrate 10, also is provided with USB interface on the motion controller 9 so that be connected with PC.Expansion substrate 10 is connected with touch-screen 11 by the BUS bus cable, and touch-screen 11 carries out communication by expansion substrate 10 and motion controller 9.The signal that motion controller 9 is accepted from PLC Input terminal block, angular transducer 15, magnetostrictive displacement sensor 17 carries out centralized control by PLC programming, SFC and servo programe programming.
I/O mixing module 12, high speed counting module 14, analog-to-digital conversion module 16 are installed on the expansion substrate 10, and by expansion substrate 10 and motion controller 9 communications; PLC Input terminal block 13 and PLC lead-out terminal row 18 inserts I/O mixing module 12 respectively by cable.
Power conversion unit preferably adopts the MR-J3-CV-55K4 type of Mitsubishi, driver element preferably adopts the MR-J3-DU-55KB4 type of Mitsubishi, motion controller preferably adopts the Q170M type of Mitsubishi, dynamic brake preferably adopts the DBU55K-4 type of Mitsubishi, servomotor preferably adopts the HA-LP50K1M4 type of Mitsubishi, the DH-AL-55K of the preferred Mitsubishi of reactor, the Q55B type of the preferred Mitsubishi of expansion substrate, the QH42P type of the preferred Mitsubishi of I/O mixing module, the preferred Delta ES3 of angular transducer type, the GNC-M-0200-M01 type that the preferred German novotechnik of magnetostrictive displacement sensor company produces, the GT1572-VNBA type of the preferred Mitsubishi of touch-screen.
The present invention adopts contactless magnetostrictive displacement sensor directly to detect the slider displacement amount, movable magnet ring is carried out rigid the connection with slide block, when slide block up and down during rectilinear motion, the drive magnet ring moves up and down, thereby form the relative displacement of magnet ring and sounding rod, form the variation in magnetic field, and carry out communication by analog quantity/digital quantity modular converter and expansion substrate with motion controller and be connected; Control system of the present invention directly detects the slider displacement amount, and control system is formed closed loop, and accuracy of detection promotes significantly, and resolution can reach 0.01mm.
Fig. 3 is the user interface synoptic diagram of touch-screen, and each interface implication is as follows:
A scroll bar form display alarm information: in order to the relevant warning message of roll display pressing machine, as overload, air pressure deficiency, misdelivery material, the warning of tonnage instrument etc.;
B angle display: the angle that the indication slide block turns over;
The c angle value shows: accurately show the angle that slide block turns over;
The d number of strokes: show the number of times of pressing machine per minute by bottom dead centre;
E displacement: the shift motion that accurately shows slide block;
F mould number: the mould number that shows current use;
G operational mode: show the current operational mode of pressing machine;
H total amount counting: show the total punching press number of times of pressing machine, generally be used for agreement by piece, total processing work quantity in a period of time is added up;
I total amount counter switch: in order to the opening and closing of control " total amount counting " function;
J total amount count resets: h total amount count value is carried out zero clearing;
The k batch counting: in order to statistics processing work quantity in the certain hour, when k batch counting value arrived p batch counting setting value, lathe quit work, and pressed the n batch counting counting of can reworking that resets,
M batch counting switch: in order to the opening and closing of control " batch counting " function;
The q motor speed is set: the running speed of setting servomotor;
The r motor speed shows: in order to show the current actual speed of servomotor;
S slide block current location: show the current physical location (height of packing compact physical location) of slide block;
T operational mode:, select the operational mode that is fit to according to different processing technologys;
U status surveillance: display machines bed operating state and relevant warning message;
The v fault is got rid of: according to warning message, and the inquiry troubleshooting methodology;
W refuels setting: set lathe electric oil pump volume read-out as required and refuel the frequency;
The x synchronous cam is set: needed other cam angle degree values of set pressure machine control;
Y mould number is selected: select suitable mould number;
Z displacement indication: show slide block actual displacement amount.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (8)
1. the control system of a servo-pressing machine, comprise servomotor, driver element, motion controller and PLC, the out-put supply port of described driver element is connected with described servomotor, the signal port of described driver element is connected with the scrambler of described servomotor, it is characterized in that: the output port of described motion controller is connected with the input port of described driver element by SSCNET III high speed optical cable and carries out high speed serial communication, and the input end of described motion controller is connected with expansion substrate; High speed counting module, the analog-to-digital conversion module of I/O mixing module and detection slide position amount are installed on the described expansion substrate, and by described expansion substrate and described motion controller communication; PLC Input terminal block and PLC lead-out terminal row insert described I/O mixing module respectively; Angular transducer is installed in the end of press crankshaft, and its signal wire inserts described high speed counting module and bent axle is turned over angle signal and offers described high speed counting module; The movable magnet ring of magnetostrictive displacement sensor is fixedly connected on the press ram, and its signal wire inserts described analog-to-digital conversion module and slider displacement amount signal is offered described analog-to-digital conversion module.
2. the control system of servo-pressing machine according to claim 1 is characterized in that, described expansion substrate is connected with touch-screen by the BUS bus cable, and described touch-screen carries out communication by described expansion substrate and described motion controller.
3. the control system of servo-pressing machine according to claim 2 is characterized in that, is provided with power conversion unit between described driver element and the power supply, and the communication port of described power conversion unit is connected with described driver element communication by the protection coordination cable; The changing voltage lead-out terminal of described power conversion unit is connected with voltage input end of described driver element by special-purpose bonding conductor; The input end of dynamic brake is connected with the bus of servomotor, and the output terminal of described dynamic brake is connected with the control power input terminal of described power conversion unit, and the kinetic energy of dragging system fed back in the electrical network when pressing machine was braked.
4. the control system of servo-pressing machine according to claim 3 is characterized in that, is provided with reactor between described power supply and the described power conversion unit.
5. according to the control system of each described servo-pressing machine in the claim 1 to 4, it is characterized in that described power conversion unit adopts MR-J3-CV-55K4 type power conversion unit.
6. according to the control system of each described servo-pressing machine in the claim 1 to 4, it is characterized in that described driver element adopts MR-J3-DU-55KB4 type driver element.
7. according to the control system of each described servo-pressing machine in the claim 1 to 4, it is characterized in that described motion controller adopts Q170M type motion controller.
8. according to the control system of each described servo-pressing machine in the claim 1 to 4, it is characterized in that described dynamic brake adopts DBU55K-4 type dynamic brake.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010610447A CN102183911B (en) | 2010-12-29 | 2010-12-29 | Control system of servo press machine |
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| CN201010610447A CN102183911B (en) | 2010-12-29 | 2010-12-29 | Control system of servo press machine |
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| CN102183911B CN102183911B (en) | 2012-08-29 |
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Cited By (5)
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| CN103776360A (en) * | 2012-10-24 | 2014-05-07 | 绵阳市维博电子有限责任公司 | Automatic cutting bed cutter deformation detection device |
| CN106881903A (en) * | 2017-03-28 | 2017-06-23 | 广东华中科技大学工业技术研究院 | A kind of servo-pressing machine control system |
| CN107283912A (en) * | 2017-07-27 | 2017-10-24 | 南京农业大学 | A kind of servo-pressing machine blend closed loop control system |
| CN109968733A (en) * | 2019-04-30 | 2019-07-05 | 扬力集团股份有限公司 | A kind of control system of the energy-saving servo-pressing machine of double drive |
| CN112046072A (en) * | 2020-08-27 | 2020-12-08 | 广东达诚技术股份有限公司 | Automatic detecting and adjusting device for height position of die table of forming machine |
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| CN202033637U (en) * | 2010-12-29 | 2011-11-09 | 江苏扬力集团有限公司 | Servo control system of press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103776360A (en) * | 2012-10-24 | 2014-05-07 | 绵阳市维博电子有限责任公司 | Automatic cutting bed cutter deformation detection device |
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| CN106881903A (en) * | 2017-03-28 | 2017-06-23 | 广东华中科技大学工业技术研究院 | A kind of servo-pressing machine control system |
| CN107283912A (en) * | 2017-07-27 | 2017-10-24 | 南京农业大学 | A kind of servo-pressing machine blend closed loop control system |
| CN109968733A (en) * | 2019-04-30 | 2019-07-05 | 扬力集团股份有限公司 | A kind of control system of the energy-saving servo-pressing machine of double drive |
| CN112046072A (en) * | 2020-08-27 | 2020-12-08 | 广东达诚技术股份有限公司 | Automatic detecting and adjusting device for height position of die table of forming machine |
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| CN102183911B (en) | 2012-08-29 |
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Address after: Yang Road, Yangzhou hi tech Industrial Development Zone, Hanjiang District, Jiangsu city of Yangzhou Province, No. 99 225009 Patentee after: JIANGSU YANGLI GROUP CO., LTD. Address before: 225127 No. 99 middle Yangzi Road, Jiangsu, Yangzhou Patentee before: Jiangsu Yangli Group Co., Ltd. |
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Application publication date: 20110914 Assignee: JIANGSU YANGLI CASTING AND FORGING Co.,Ltd. Assignor: YANGLI GROUP Co.,Ltd. Contract record no.: X2020980007690 Denomination of invention: Control system of servo press Granted publication date: 20120829 License type: Common License Record date: 20201109 |
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