CN106325195A - Full closed-loop plate shearing machine and control method for calibration compensation - Google Patents
Full closed-loop plate shearing machine and control method for calibration compensation Download PDFInfo
- Publication number
- CN106325195A CN106325195A CN201510394650.3A CN201510394650A CN106325195A CN 106325195 A CN106325195 A CN 106325195A CN 201510394650 A CN201510394650 A CN 201510394650A CN 106325195 A CN106325195 A CN 106325195A
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- plc
- compensation
- servomotor
- plate shearing
- shearing machine
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15078—Modules, construction of system
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Abstract
The invention relates to a full closed-loop plate shearing machine for calibration compensation. The machine comprises a PLC. The input end of the PLC input end is connected to an upper computer, and the output end is connected to the input end of a servo motor through a position controlling module. The output end of the servo motor is connected to a material feeding roller through a deceleration mechanism. The deceleration mechanism is connected to and synchronously operated with a silicon steel sheet through a length measuring roller. A length measuring decoder is connected to the length measuring roller to convert a length value measured by the length measuring roller into a length signal. The output end of the length measuring decoder is connected to the PLC to feed back the length signal to the PLC. The machine utilizes full closed-loop compensation control to be high in anti-interference ability, perfect in functions, high in applicability, precise in length shearing control, and high in control precision.
Description
Technical field
The present invention relates to cross cut shears manufacture field, the closed-loop plate shearing machine of a kind of compensation for calibrating errors and
Control method.
Background technology
Along with being continuously increased of the power transformer market demand, transformer production producer is all carried by country or even the world
Go out requirements at the higher level, force it to constantly update, improve its production equipment.
The shearing equipment of developed country has that good processing accuracy, shear rate be fast, automaticity high,
Significantly reducing the labor intensity of workman, but corresponding price is high, the transformator making a lot of ground zero is raw
Produce factory to hang back.Society, development in science and technology is rapid, and in world wide, all trades and professions are all emphasizing saving money
Source, the development idea of minimizing energy consumption, for power industry, save raw material, reduce the same of production cost
Time Improving The Quality of Products, oneself so becomes the major way that enterprise seeks to develop further.
Legacy equipment after a period of operation, it is possible that change mechanically, measure the mill of roller
Damage the girth causing measuring roller to change.
Feeding roller may skid with silicon steel sheet when running up, and causes location variable and silicon that feeding roller rotates
The length of steel disc linear running is inconsistent.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of shear precision that can improve silicon steel sheet cross cut shears
Closed-loop plate shearing machine and control method.
The present invention be the technical scheme is that for achieving the above object
The closed-loop plate shearing machine of a kind of compensation for calibrating errors, connects host computer including PLC input, and outfan passes through
Position control module connects the input of servomotor, and the outfan of servomotor is sent by reducing gear connection
Material roller, feeding roller is connected by silicon steel sheet with measuring roller, and synchronization action；Survey long codes device and connect described survey
Long roller, the length value recorded by measuring roller is converted into length signals, and the outfan surveying long codes device connects PLC,
To PLC feedback length signal.
Described position control module receives and dispatches pulse signal by enumerator, controls the start and stop of servomotor, speed
And acceleration.
Described survey long codes device is coaxially disposed with measuring roller, the rotation variable of measuring roller is converted into telecommunications and feels the pulse
Momentum, is sent in position control module.
Described reducing gear is reductor and driving belt.
Precision alignment unit is also set up, the measurement error caused for calibration because of measuring roller abrasion in PLC.
The closed-loop plate shearing machine control method of a kind of compensation for calibrating errors, comprises the following steps:
Step 1: target patch molded dimension parameter is input to host computer and is sent to PLC；
Step 2:PLC, according to the dimensional parameters received, calculates in conjunction with calibration parameter；
Step 3: result of calculation is converted into pulse signal, is sent to servomotor by position control module,
Control servomotor work；
Step 4: after servomotor is rotated in place, the feedback letter that long codes device sends is surveyed in position control module collection
Number, the pulse signal obtained with servomotor in PLC compares, if pulse signal difference is less than pulse
Threshold value, then send shutoff signal to PLC, controls cutter and carries out cut-out action；
Step 5: if pulse signal difference is not less than pulse threshold, then using pulse signal difference as compensated pulse
Signal feeds back in step 3.
Described calibration parameter is when measuring roller generation frame for movement changes, and the calibration to Surveying Actual Precision is mended
Repay coefficient.
The invention have the advantages that and advantage:
1. the present invention uses PLC as control unit, and capacity of resisting disturbance is the most comprehensive, perfect in shape and function, suitable
Strong by property.
2. the present invention is compensated by closed-loop, it is achieved accurately control sheared length, and control accuracy is high.
3. have employed the programming of variable scale, employing program make up due to equipment long-term work cause mechanically
Error.
4. present configuration is simple, and easy to operate, operating cost is low, can use under various complicated.
Accompanying drawing explanation
Fig. 1 is the hardware structure diagram of the present invention；
Fig. 2 is the method flow diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail.
As it is shown in figure 1, the structure design of the present invention is achieved in that length compensation part includes: PLC,
Servo-drive, feeding servomotor, feeding roller, measuring roller, survey long codes device.Its connection is: PLC is even
Connected position control module to be connected with servo；Servo is by connecting power line, encoder and feeding servo electricity
Machine is connected；Servomotor is connected with feeding roller by reductor, driving belt；Silicon is driven during feeding roller work
Steel disc, silicon steel sheet drives measuring roller action simultaneously；Measuring roller is connected with surveying long codes device；Survey long codes device with
The position control module of PLC connects；
The position control module of PLC can send and receive pulse, position by internal high-speed counter
Control module controls the start and stop of servomotor, speed, acceleration by position control mode.
The position control accuracy of servomotor is the highest, and it has, and reaction is quick, time constant is little, the linearity
The characteristics such as height, pickup voltage.
Servomotor drives feeding roller to rotate by reductor, belt pulley, and feeding roller pinches silicon steel sheet and delivers to respectively
Individual tool location is sheared, and the rotation of servomotor is become the linear motion of silicon steel sheet；The fortune of silicon steel sheet
The dynamic rotation having driven measuring roller.
Surveying long codes device and carry out moved in coaxial with measuring roller, the variable that rotates of measuring roller is become the signal of telecommunication by him
Pulsed quantity, and by the position control module of incoming for pulsed quantity PLC.
Precision is calibrated mainly for solving equipment after a period of operation, it is possible that mechanically
Change, the abrasion of measurement roller cause the girth measuring roller to change.
Full closed loop control may skid with silicon steel sheet when running up mainly for solving feeding roller, then send
The location variable that material roller rotates is inconsistent with the length of silicon steel sheet linear running.
If as in figure 2 it is shown, the feedback pulse number that measurement roller records is with servo to the umber of pulse of servomotor not
Coupling, both difference pulses numbers after conversion can be passed to servomotor as the pulse compensated, servo by system
Whether motor continues to run with the umber of pulse of compensation, then judges that the umber of pulse of the pulse of feedback and servomotor
Joining, if coupling just provides shutoff signal, cutter does shearing motion；So continue to do compensation fortune if do not mated
Dynamic, until coupling.
If it find that change occurs in frame for movement, then carry out tool location calibration in precision calibration module
Operation, controls servomotor respectively and carries out the slow rotation of 1/4,1/2,1 circle, screen can obtain corresponding
Measuring encoder pulse number, judging that measuring roller there occurs that what kind of changes, if measuring roller according to umber of pulse
There occurs serious deformation, need it to be polished or changes；After processing measurement roller, it is also performed to
Tool location calibration operation, measures the length that can obtain silicon steel sheet by reality, can by surveying long codes device
To obtain umber of pulse, these calibration parameters are input in module by touch screen, through the program write
Just can calculate the calibration parameter made new advances.
The survey long codes device that the present invention increases on the basis of traditional servo system semiclosed loop, defines complete
Closed loop system.If skidding does not occur when feeding roller pinches silicon steel sheet in theory, then measure roller and survey
The umber of pulse obtained is mated to the umber of pulse of servomotor with servo in certain scope, but actual production
In run up due to servomotor, this skidding it may happen that, thus cause silicon steel sheet and cut
The error cut.
Claims (7)
1. a closed-loop plate shearing machine for compensation for calibrating errors, connects host computer including PLC input, and outfan passes through position
Putting control module and connect the input of servomotor, the outfan of servomotor connects feeding by reducing gear
Roller, it is characterised in that: feeding roller is connected by silicon steel sheet with measuring roller, and synchronization action；Survey long codes device
Connecting described measuring roller, the length value recorded by measuring roller is converted into length signals, surveys the output of long codes device
End connects PLC, to PLC feedback length signal.
The closed-loop plate shearing machine of compensation for calibrating errors the most according to claim 1, it is characterised in that: described position is controlled
Molding block receives and dispatches pulse signal by enumerator, controls the start and stop of servomotor, speed and acceleration.
The closed-loop plate shearing machine of compensation for calibrating errors the most according to claim 1, it is characterised in that: described length of surveying is compiled
Code device is coaxially disposed with measuring roller, and the rotation variable of measuring roller is converted into signal of telecommunication pulsed quantity, and transmission puts in place
Put in control module.
The closed-loop plate shearing machine of compensation for calibrating errors the most according to claim 1, it is characterised in that: described reductor
Structure is reductor and driving belt.
The closed-loop plate shearing machine of compensation for calibrating errors the most according to claim 1, it is characterised in that: in PLC also
Precision alignment unit is set, the measurement error caused because of measuring roller abrasion for calibration.
6. the closed-loop plate shearing machine control method of a compensation for calibrating errors, it is characterised in that comprise the following steps:
Step 1: target patch molded dimension parameter is input to host computer and is sent to PLC；
Step 2:PLC, according to the dimensional parameters received, calculates in conjunction with calibration parameter；
Step 3: result of calculation is converted into pulse signal, is sent to servomotor by position control module,
Control servomotor work；
Step 4: after servomotor is rotated in place, the feedback letter that long codes device sends is surveyed in position control module collection
Number, the pulse signal obtained with servomotor in PLC compares, if pulse signal difference is less than pulse
Threshold value, then send shutoff signal to PLC, controls cutter and carries out cut-out action；
Step 5: if pulse signal difference is not less than pulse threshold, then using pulse signal difference as compensated pulse
Signal feeds back in step 3.
The closed-loop plate shearing machine control method of compensation for calibrating errors the most according to claim 6, it is characterised in that institute
Stating calibration parameter is the compensation for calibrating errors coefficient when measuring roller generation frame for movement changes, to Surveying Actual Precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394650.3A CN106325195B (en) | 2015-07-08 | 2015-07-08 | A kind of the closed-loop plate shearing machine and control method of compensation for calibrating errors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394650.3A CN106325195B (en) | 2015-07-08 | 2015-07-08 | A kind of the closed-loop plate shearing machine and control method of compensation for calibrating errors |
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| Publication Number | Publication Date |
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| CN106325195A true CN106325195A (en) | 2017-01-11 |
| CN106325195B CN106325195B (en) | 2019-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227780A (en) * | 2021-12-24 | 2022-03-25 | 江苏斯必得重工机械有限公司 | Novel automatic pipe cutting equipment |
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2015
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| US20130327871A1 (en) * | 2012-06-07 | 2013-12-12 | Siemens Industry, Inc. | Rotational speed control system for rolling mill pouring reels |
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| CN114227780A (en) * | 2021-12-24 | 2022-03-25 | 江苏斯必得重工机械有限公司 | Novel automatic pipe cutting equipment |
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| CN106325195B (en) | 2019-03-19 |
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