CN110134063A - The automatic control device and method of workpiece shaping can be achieved - Google Patents
The automatic control device and method of workpiece shaping can be achieved Download PDFInfo
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- CN110134063A CN110134063A CN201910363837.5A CN201910363837A CN110134063A CN 110134063 A CN110134063 A CN 110134063A CN 201910363837 A CN201910363837 A CN 201910363837A CN 110134063 A CN110134063 A CN 110134063A
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- forming
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- forming technology
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- finite element
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000007493 shaping process Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 claims abstract description 36
- 238000004458 analytical method Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000002452 interceptive effect Effects 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000005457 optimization Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 18
- 230000003993 interaction Effects 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007652 sheet-forming process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
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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
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
-
- 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
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
Abstract
The present invention relates to servo-pressing machine application fields, particularly disclose the automatic control device and method of a kind of achievable workpiece shaping.The automatic control device of component shaping can be achieved in this, including the three dimensional design interface in man-machine interactive system, it is characterized by: man-machine interactive system joint forming technique expert system, forming technology expert system is sequentially connected finite element analysis and check system and motor interpolation computing system, and motor interpolation computing system connects servo electrical machinery system.The present invention can provide the forming technique by Expert System Optimization, can increase substantially the accuracy of forming technology, reduce labor intensity and the working time of technologists, and a large amount of sheet material of direct saving.
Description
(1) technical field
The present invention relates to servo-pressing machine application field, in particular to a kind of automatic control device of achievable workpiece shaping and
Method.
(2) background technique
In material forming manufacture field, existing technical solution is usually user according to stamping material and shaped structure voluntarily
The process curve of press ram is set, common technology pattern is user in the human-computer interaction interface content of servo-pressing machine
Setting is crucial fixed, position and revolving speed including sliding block.Motor then can directly carry out computer according to the information of these key points
Interpolation calculates and simulation, and the position for generating interpolated point later as motor is given, and motor can execute this order according to this.Such technology
Scheme realization is relatively simple and quick, of less demanding to the automatically controlled integrated technology of servo-pressing machine, is suitble to not high to formed product
Application scenarios.
The setting sliding block related keyword point of servo-pressing machine is the experience and field adjustable effect of existing customer of being subject to, and is not had
There are the theoretical calculation and derivation by science, can more be used for reference without experience abundant.If customer experience is insufficient, design will cause
Key point mistake, influence workpiece product molding, occur that product wrinkle is broken or tearing.In addition, the case where occurring is that while not go out
Now apparent problem of appearance, but since forming speed mismatches, it causes component shaping intensity inadequate, seriously affects life of product.
The solution of these what states is the key that improve China's manufacturing industry stamping products forming quality.
(3) summary of the invention
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of digital assay, debug time is few, operation accuracy is high
Achievable component shaping automatic control device and method.
The present invention is achieved through the following technical solutions:
A kind of automatic control device of achievable component shaping, it is special including the three dimensional design interface in man-machine interactive system
Sign is: man-machine interactive system joint forming technique expert system, forming technology expert system be sequentially connected finite element analysis with
Check system and motor interpolation computing system, motor interpolation computing system connect servo electrical machinery system.
The function that the former experience by people is just able to achieve, digitized of going forward side by side analysis, due to whole collection can be achieved in the present invention
At in electric-control system, and from high arithmetic speed equipment and high performance software with, can greatly reduce debugging press machine when
Between, the quality for the formed product for producing servo-pressing machine greatly improves.
More excellent technical solution of the invention are as follows:
The forming technology expert system connects expert knowledge library system, including a large amount of forming parameters and analysis number
According to.
The man-machine interactive system includes human-computer interaction device and interface, realizes the completion of human-computer interaction.
The servo electrical machinery system includes the main control unit for connecting motor interpolation computing system, and main control unit connects servo electricity
Machine realizes the analysis reception of data and assigning for instruction by main control unit.
Based on the method that above-mentioned automatic control device realizes workpiece automation forming, include the following steps:
(1) material and three-dimensional drawing that shaped sheet is needed by the input of three dimensional design interface, export three in man-machine interactive system
Tie up the intermediate file of design；
(2) two modelings are carried out in forming technology expert system, produce optimal forming technique；
(3) finite element analysis and check system are called, emulates the state processed under best forming process conditions, and predict possibility
The problem of will appear, forms final forming technology curve and technological parameter after modified and test；
(4) motor interpolation computing system is utilized, the executable instruction in motor execution range is calculated according to process curve, servo is driven
Dynamic system receives the instruction, completes punching course.
Preferably:
In step (2), forming technology expert system connects expert knowledge library system, including forming technology empirical parameter, gold
Belong to the stress and strain parameter of plastic deformation and the analysis data of corresponding relationship, plastic period and elastic deformation stage.
Forming technology expert system provides the best forming technology of system recommendation, it is detailed provide forming force, forming speed,
The technological parameter of shaping position and forming temperature.
In step (3), finite element analysis and check system carry out finite element analysis to sheet material and shaping form online
And the defect being likely to occur in forming process is predicted and emulated, and carries out the calculating of the equal strength under different condition, pass through
Comparison, the result after providing optimization.
After finite element analysis and check system provide forming technology curve and technological parameter after optimization, technique is manually carried out
The fine tuning and improvement of parameter.
In step (4), motor interpolation computing system has fully considered that the drive mechanism of forming technology and servo-pressing machine is special
Point obtains the calculated result of interpolation according to the constraint and optimum analysis of indices.
The present invention can provide the forming technique by Expert System Optimization, can increase substantially the standard of forming technology
True property, reduce labor intensity and the working time of technologists, and a large amount of sheet material of direct saving；In addition,
The it is proposed of this control device combines current technique and requires and the characteristics of press machine, can quickly realize process curve from
Dispersion and generation executable command, significantly debugging cost, provides the forming quality of workpiece.
(4) Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is present invention process flow diagram.
In figure, 1 three dimensional design interface, 2 forming technology expert systems, 3 finite element analyses and check system, 4 motor interpolations
Computing system, 5 servo electrical machinery systems, 6 expert knowledge library systems.
(5) specific embodiment
Attached drawing is a kind of specific embodiment of the invention.The embodiment includes the three dimensional design interface 1 in man-machine interactive system, people
Machine interactive system joint forming technique expert system 2, forming technology expert system 2 is sequentially connected finite element analysis and check system
3 and motor interpolation computing system 4, motor interpolation computing system 4 connects servo electrical machinery system 5；The forming technology expert system 2
Connect expert knowledge library system 6.
The material of plate and the three-dimensional drawing of its forming are inputted in man-machine interactive system, according to the defeated of Three-dimensional Design Software
Intermediate file out carries out two modelings in forming technology expert system 2；Forming technology expert system 2, i.e., it is secondary in system to build
The design of mould generates optimal forming technique according to a large amount of expert knowledge library systems 6 in background system；Finite element fraction
Analysis and check system 3, call finite element analysis software to emulate the state processed under best forming process conditions, and predict possibility
The problem of will appear, forms final forming technology curve and technological parameter after modified and test；Motor interpolation calculates system
System 4 executes the executable instruction in range according to above-mentioned curve measuring and calculating motor；Servo drive system 5, the finger of actuating motor
It enables, completes punching course.
Forming technology expert system 2 further comprises a large amount of forming technology empirical parameter, also includes metal plastic deformation
Stress and strain parameter and corresponding relationship, also possess a large amount of plastic period and the analysis data of elastic deformation stage,
The best forming technology of system recommendation can be provided in the three-dimensional design drawing of first step input and clear plate material；It is detailed
Provide multiple technological parameters such as forming force, forming speed, shaping position and forming temperature.
Finite element analysis and 3 part of check system can carry out finite element analysis simultaneously to sheet material and shaping form online
The defect being likely to occur in forming process is predicted and emulated, and carries out the calculating of the equal strength under different condition, by right
Than providing the result after optimizing.At this point, can be by the fine tuning and improvement of artificial progress technological parameter.
4 part of motor interpolation computing system is this hair then with traditional maximum shortcoming of computer interpolation operation
The interpolation of bright design calculated abundant consider process for stamping and forming and servo-pressing machine drive mechanism feature, according to indices
Constraint and most have analysis, obtain the calculated result of interpolation, this is the result is that motor is executable reaches and be able to satisfy final
What process curve required.
Servo drive system 5 then provides the power servo-driver of quick response, big torque, meets servo-pressing machine
Various performance indicators and requirement.
Implementation process of the present invention must have following link: human-computer interaction device and interface, input plate and material for user
Matter, normal use and operation servo-pressing machine；Metal forming technology expert system 2 constructs complete sheet forming process data
Library, the hot forging during achievable material forming, the physical and chemical changes in cold forging, and can be determined according to expert's priori knowledge
Optimal forming technology curve and process；Design finite element analysis accurately judges forming process with 3 software of check system
And there is the case where defect ware and faulty goods in prediction, the product specification being likely to occur, especially maximum probability；Forming technology
Curve obtains the process curve of complete punching course；Curve interpolation algorithm is, it can be achieved that motor is transported by desired trajectory
Row.
The process of realization needs industrial personal computer, finite element analysis software, servo-driver parameter and press machine main control unit
Cooperation is realized.
Claims (10)
1. a kind of automatic control device of achievable component shaping, including the three dimensional design interface (1) in man-machine interactive system,
It is characterized by: man-machine interactive system joint forming technique expert system (2), forming technology expert system (2) is connected in turn
Finite element analysis and check system (3) and motor interpolation computing system (4), motor interpolation computing system (4) connect servo motor system
It unites (5).
2. the automation equipment of achievable component shaping according to claim 1, it is characterised in that: the forming technology is special
Family's system (2) connects expert knowledge library system (6).
3. the automation equipment of achievable workpiece shaping according to claim 1, it is characterised in that: the human-computer interaction system
System includes human-computer interaction device and interface.
4. the automation equipment of achievable workpiece shaping according to claim 1, it is characterised in that: the servo motor system
System (5) includes main control unit of connection motor interpolation computing system (4), and main control unit connects servo motor.
5. the method for realizing workpiece automation forming based on automatic control device described in claim 1, which is characterized in that packet
It includes following steps: (1) material and three-dimensional drawing of shaped sheet is needed by the input of three dimensional design interface, in man-machine interactive system
Export the intermediate file of three dimensional design；(2) two modelings are carried out in forming technology expert system, produce optimal forming
Technique；(3) finite element analysis and check system are called, emulates the state processed under best forming process conditions, and predicting can
The problem of capable of will appear, forms final forming technology curve and technological parameter after modified and test；(4) motor is utilized
Interpolation computing system calculates the executable instruction in motor execution range according to process curve, and servo drive system receives this and refers to
It enables, completes punching course.
6. the method according to claim 5 for realizing workpiece automation forming, it is characterised in that: in step (2), shape work
Skill expert system connect expert knowledge library system, including forming technology empirical parameter, metal plastic deformation stress and answer
The analysis data of variable element and corresponding relationship, plastic period and elastic deformation stage.
7. the method according to claim 5 for realizing workpiece automation forming, it is characterised in that: in step (2), shape work
Skill expert system provides the best forming technology of system recommendation, detailed to provide forming force, forming speed, shaping position and forming
The technological parameter of temperature.
8. the method according to claim 5 for realizing workpiece automation forming, it is characterised in that: in step (3), finite element
Analysis and check system carry out finite element analysis to sheet material and shaping form online and to being likely to occur in forming process
Defect is predicted and is emulated, and carries out the calculating of the equal strength under different condition, the result by comparison, after providing optimization.
9. the method for realization workpiece automation forming according to claim 5 or 8, it is characterised in that: in step (3), have
After finite element analysis and check system provide forming technology curve and technological parameter after optimization, the artificial fine tuning for carrying out technological parameter
And improvement.
10. the method according to claim 5 for realizing workpiece automation forming, it is characterised in that: in step (4), motor
Interpolation computing system has fully considered the drive mechanism feature of forming technology and servo-pressing machine, about according to the condition of indices
Beam and optimum analysis obtain the calculated result of interpolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363837.5A CN110134063A (en) | 2019-04-30 | 2019-04-30 | The automatic control device and method of workpiece shaping can be achieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910363837.5A CN110134063A (en) | 2019-04-30 | 2019-04-30 | The automatic control device and method of workpiece shaping can be achieved |
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| Publication Number | Publication Date |
|---|---|
| CN110134063A true CN110134063A (en) | 2019-08-16 |
Family
ID=67576170
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910363837.5A Pending CN110134063A (en) | 2019-04-30 | 2019-04-30 | The automatic control device and method of workpiece shaping can be achieved |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269353A (en) * | 2020-08-06 | 2021-01-26 | 中国地质大学（武汉） | Jewelry processing platform control system and method based on EtherCAT bus |
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| CN104608363A (en) * | 2015-01-15 | 2015-05-13 | 广东工业大学 | Expert system and method for configuring technological parameters in plastic extrusion production |
| CN105511400A (en) * | 2016-02-04 | 2016-04-20 | 合肥泰禾光电科技股份有限公司 | Control system of stamping robots |
| CN106944584A (en) * | 2017-03-21 | 2017-07-14 | 武汉理工大学 | Expert system and method that a kind of four tracks rotary forging press production technology is automatically generated |
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2019
- 2019-04-30 CN CN201910363837.5A patent/CN110134063A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN102063550A (en) * | 2011-01-07 | 2011-05-18 | 浙江工业大学 | Intelligent design system of cold extrusion piece with machine intelligence involved design decision |
| CN104007698A (en) * | 2014-05-27 | 2014-08-27 | 南京航空航天大学 | Machining technology curve trace planning method for servo press |
| CN104608363A (en) * | 2015-01-15 | 2015-05-13 | 广东工业大学 | Expert system and method for configuring technological parameters in plastic extrusion production |
| CN105511400A (en) * | 2016-02-04 | 2016-04-20 | 合肥泰禾光电科技股份有限公司 | Control system of stamping robots |
| CN106944584A (en) * | 2017-03-21 | 2017-07-14 | 武汉理工大学 | Expert system and method that a kind of four tracks rotary forging press production technology is automatically generated |
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| CN112269353A (en) * | 2020-08-06 | 2021-01-26 | 中国地质大学（武汉） | Jewelry processing platform control system and method based on EtherCAT bus |
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Application publication date: 20190816 |