CN108563826A - Multi-connecting rod servo press machine drive mechanism performance analysis platform - Google Patents
Multi-connecting rod servo press machine drive mechanism performance analysis platform Download PDFInfo
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Abstract
The present invention relates to multi-connecting rod servo press machine drive mechanism performance analysis platforms, including hardware components and software section, hardware components include computer and touch display screen；Software section includes：Mechanism configuration analysis module, mechanism module, Three-dimensional simulation analysis module, force analysis module, flexibility analysis module, project plan comparison module and help module, software section load in computer.The analysis platform is using multi-connecting rod servo press machine as research object, the servo-pressing machine of various configuration is concentrated in together, the performance evaluation to multi-connecting rod servo press machine transmission mechanism design result is completed by way of the selection of interface and completes project plan comparison promotion improving design decision, designer is set to can be obtained the simulation analysis to its performance after Designing Linkages are completed, it is more intuitively that user shows the required effective reference data of research institution, convenient for the preferred research of mechanism scheme, each function module can carry out secondary development, expanded configuration database according to actual needs.
Description
Technical field
The invention belongs to mechanism transmission design technical fields, and in particular to a kind of multi-connecting rod servo press machine transmission mechanism
It can analysis platform.
Background technology
Servo-pressing machine (Servo Press) is the one kind occurred in the world in the 1990s and tradition machinery pressure
The third generation forcing press of the entirely different concept of machine, on the energy-consuming parts such as the flywheel of abandoning tradition mechanical press and clutch basis
On, the power source as forcing press is connect using alternating current servo motor direct, is executed by multi links such as spiral, crank connecting link, toggle links
The convert rotational motion of motor is the linear motion of sliding block by mechanism.Multi-connecting rod servo press equipment flexibleization, high-precision, height
Efficiency, low noise and other advantages are used widely and promote in the whole world in recent years.Analyze multi-connecting rod servo press machine driver
The configuration and performance of structure have important scientific meaning and actual application value, simultaneously to the optimization of multi-connecting rod servo press machine
Seek energy saving way, it is energy saving for manufacturing industry, establish economizing type Chinese society and have more practical significance.
The configuration of multi-connecting rod servo press machine transmission mechanism is varied, each configuration performance is influenced by many factors,
Such as the length of each component, the initial angular position variation of crank can influence the power of entire mechanism and kinetic characteristic changes.
The sliding block operation characteristic of multi-connecting-rod mechanism is determined by the size and relative position of each rod piece, since rod piece is more so such as
What correctly selects the size of each rod piece to ensure that sliding block has that meet the kinetic characteristic of technological requirement be the key that in design work.
In recent years, it is comprehensive to carry out track to multi-connecting rod servo press machine transmission mechanism by the researcher of multi-connecting rod servo press machine transmission mechanism
It closes, studied in terms of performance evaluation and optimization design, but current research is also only limitted to certain specific transmission mechanism
It is individually analyzed one by one, heavy workload.In order to play the reinforcement characteristic of multi-connecting rod servo press machine transmission mechanism, obtain in real time
The quiet dynamic data of alternatives, and its optional transmission mechanism is subjected to integrated transverse and longitudinal comparison, so as to overall merit, same to hour hands
Abstract problem, General Promotion practical teaching ability, book knowledge engineer application, it is necessary to carry are learnt to transmission mechanism configuration
For a kind of multi-connecting rod servo press machine transmission mechanism type selecting and optimization method, teaching and practical implementation bridge are built, is provided
The multi-connecting rod servo press machine drive mechanism performance analysis platform of integration, visualization and autgmentability reduces cost needs, comprehensively
Understand the variation and contact of mechanism performance parameter in systems in practice.
Invention content
In view of the deficiencies of the prior art, the technical issues of present invention intends to solve be：A kind of multi-connecting rod servo press machine is provided
Drive mechanism performance analysis platform.The analysis platform is using multi-connecting rod servo press machine as research object, by the servo of various configuration
Forcing press concentrates in together, and the performance evaluation of linkage design result is completed by way of the selection of interface and completes scheme
Compare promotion and improve design decision, designer is made to can be obtained the emulation point to its performance after Designing Linkages are completed
Analysis is more intuitively, compactly that user shows the required effective reference data of research institution, convenient for the preferred of mechanism scheme
Research, each function module can carry out secondary development, according to actual needs expanded configuration database.
The present invention solve the technical problem the technical solution adopted is that：A kind of multi-connecting rod servo press machine driver is provided
Structure Performance Analysis Platform, including hardware components and software section, it is characterised in that hardware components include that computer and touch are shown
Screen；Software section includes：Mechanism configuration analysis module, mechanism module, Three-dimensional simulation analysis module, force analysis module,
Flexibility analysis module, project plan comparison module and help module, software section load in computer；
The mechanism configuration analysis module is leverage configuration library, uses Pop-up Menu controls and carries out menu mode selection,
Various leverages select forcing press transmission mechanism configuration into system, show first because the different characteristics having of structure are different
Go out selected member structure and be simultaneously subject to structure explanation, forcing press design selection is first according to user's requirement from alternative leverage structure
Preliminary screening is carried out in type library；
The mechanism module is according to multigroup each bar length parameters of multi-connecting rod servo press machine transmission mechanism, painting
The kinematics curve under different bar elongate members is made, and analysis comparison can be carried out in real time；
The Three-dimensional simulation analysis module is used to, by abstract configuration hypostazation, give user's direct feel, verifies movement locus
The correctness of output, analysis displacement, speed, acceleration parameter index；
The force analysis module is used for the stressing conditions secondary to each bar during mechanism kinematic and each link and carries out
Analysis, to reasonably select manufacture forcing press rod piece material and size and rod piece link；
The variation of ess-strain when the flexibility analysis module is used to understand each rod piece movement position, quiet dynamic stress
Consider, detailed process is；System is initially entered, forcing press transmission mechanism configuration to be analyzed is selected, inputs corresponding pressure machine
Transmission mechanism rod piece parameter builds relevant pressure machine transmission mechanism three-dimension flexible model, carries out flexible simulated analysis, obtain load
Spectrum, displacement spectra；Flexibility analysis is carried out by the strees strain model generated during the motion, is shown on display interface each
Ess-strain variation when at rod piece at various locations, passes through the ess-strain known to flexibility analysis when each rod piece movement position
Variation, quiet dynamic stress considers；Then judge whether that continue selection mechanism configuration exits if not continuing to select,
If continuing selection mechanism configuration, selection forcing press transmission mechanism configuring step to be analyzed is returned；
Class of establishment is selected in mechanism configuration analysis module, it is corresponding that corresponding movement is exported in mechanism module
Parameter, and statics Analysis is carried out by force analysis module, statics analysis results are provided, Three-dimensional simulation analysis is then passed through
Module carries out rigid simulation analysis, determines the reasonability of mechanism；Carry out flexible simulated analysis in flexibility analysis module again, and
Ess-strain variation when being shown on touch-screen display at each rod piece at various locations, ess-strain is represented with a variety of colors
Size；Further compared as project plan comparison module scheme to obtained by, include compared with the transmission mechanism of different leverages, or
Same transmission mechanism length parameters difference value compares, and optional mechanism is carried out integrated transverse and longitudinal comparison, is obtained in real time for choosing side
The quiet dynamic data of case so far completes taking for multi-connecting rod servo press machine drive mechanism performance analysis platform so as to overall merit
It builds.
Compared with prior art, the beneficial effects of the invention are as follows：
Multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention is driven for a kind of visualization servo-pressing machine
Mechanics performance analysis platform, is programmed using Matlab, realizes the type choosing of the forcing press mechanism based on graphic user interface (GUI)
It selects, the performance evaluations such as kinematic calculation and its performance curve are shown, forcing press transmission mechanism can be completed and preferably worked, carried for user
Optimized for the selection gist of visual pattern, and to original scheme, by Linkage Analysis, motion analysis, three-dimensional artificial, by
Power analysis, flexibility analysis and several big modules of project plan comparison, the original scheme of complex optimum obtain being satisfied with structural parameters.Friendly interface work(
The comprehensive Visual Performance analysis result of energy intuitively reflects the comprehensive performance of forcing press mechanism, for auxiliary user design and divides
Analysis provides theoretical foundation, has very strong autgmentability, and this method is simple and effective, operation convenient to carry out, improves design efficiency, tool
There is larger engineering application value.
Multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention has integration, visualization and convenience etc.
Feature, predominantly mechanical design and manufacture ＆ automation major and design, from transmission mechanism type selecting, kinematics, dynamic analysis,
Three-dimensional artificial no longer only rests in abstract design the cognition of mechanism to project plan comparison, and abstract knowledge is embodied, is real
Materialization, solution procedure realize visualization, and interface is reasonable, and human-computer interaction is very convenient.By functional analysis, biography is improved
System Machine Design class teaching pattern, research and design have been obtained beneficial to conclusion, and important guiding is provided to improve classroom teaching effect
Effect.
Optional mechanism is carried out integrated transverse and longitudinal pair by multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention
Than from transmission mechanism reinforcement characteristic angle, saving complicated manual calculation, obtaining the quiet dynamic data of alternatives in real time
So as to overall merit, power-assisted user's decision.Secondly book knowledge and engineer application bridge are built, to reach mechanism configuration abstract
Learn the purpose to engineer application transition, effectively reduce cost demand, fully understands mechanism performance parameter in systems in practice
Variation and contact.
Description of the drawings
Fig. 1 is that multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention constitutes schematic block diagram.
Fig. 2 is the schematic diagram of mechanism of different leverages, and wherein Fig. 2 (a) is the schematic diagram of mechanism of crank press, and Fig. 2 (b) is toggle link
The schematic diagram of mechanism of forcing press, Fig. 2 (c) are the schematic diagram of mechanism of eight rod pressure machines, and Fig. 2 (d) is the schematic diagram of mechanism of ten rod pressure machines.
Fig. 3 is the sliding block stress F in embodiment 1FCurve synoptic diagram.
Fig. 4 is the stream of mechanism configuration analysis module in multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention
Cheng Tu.
Fig. 5 is the flow of mechanism module in multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention
Figure.
Fig. 6 is the stream of Three-dimensional simulation analysis module in multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention
Cheng Tu.
Fig. 7 is the flow of force analysis module in multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention
Figure.
Fig. 8 is the flow of elastic analysis module in multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention
Figure.
Fig. 9 is the flow of project plan comparison module in multi-connecting rod servo press machine drive mechanism performance analysis platform of the present invention
Figure.
Figure 10 is the display interface of the multi-connecting rod servo press machine drive mechanism performance analysis platform of embodiment 1.
Figure 11 is the force analysis schematic diagram of servo-pressing machine triangle elbow-bar mechanism.
Specific implementation mode
The present invention is explained further with reference to embodiment and attached drawing, but not in this, as to the application protection domain
It limits.
Multi-connecting rod servo press machine drive mechanism performance analysis platform, including hardware components and software section, wherein hardware
Part includes computer and touch display screen；Software section includes：Mechanism configuration analysis module, mechanism module, three-dimensional are imitative
True analysis module, force analysis module, flexibility analysis module, project plan comparison module and help module, software section load are being counted
In calculation machine；
Wherein, mechanism configuration analysis module is leverage configuration library, uses Pop-up Menu controls and carries out menu mode choosing
It selects, various leverages select forcing press transmission mechanism configuration into system, open up first because the different characteristics having of structure are different
Show that selected member structure is simultaneously subject to structure explanation, forcing press design selection is first according to user's requirement from alternative leverage
Preliminary screening is carried out in configuration library, detailed process is (referring to Fig. 4)：Start, selects leverage configuration, if being selected as four-bar mechanism,
A kind of four-bar mechanism type, such as crank block, crank centering block are then selected in four-bar mechanism, if not four-bar mechanism, then sentence
Whether disconnected is six-bar mechanism, if six-bar mechanism, then a kind of six-bar mechanism type is selected in six-bar mechanism, such as toggle link, triangle
Toggle link etc.；If judgement is not six-bar mechanism, determines whether eight-linkage mechanism, if eight-linkage mechanism, then selected in eight-linkage mechanism
Select a kind of eight-linkage mechanism type, the shape and structure as shown in Fig. 2 (c)；Mechanism configuration is selected by being judged always by this
No is research press transmission mechanism configuration to be designed, i.e. alternative pressure machine transmission mechanism configuration；
If having selected the specific member structure under certain leverage configuration, corresponding schematic diagram of mechanism is shown on interface, and
Export corresponding mechanism structure explanation；Then judge whether to continue that leverage configuration is selected to exit, such as if not continuing to select
Fruit continues to select leverage configuration, then returns to selection leverage configuring step.
The mechanism module is according to multigroup each bar length parameters of multi-connecting rod servo press machine transmission mechanism, painting
The kinematics curve under different bar elongate members is made, and analysis comparison can be carried out in real time, detailed process is (referring to Fig. 5)：Start,
Forcing press transmission mechanism configuration to be analyzed is selected, the motion mathematical model of corresponding transmission mechanism is established, inputs corresponding bar length ginseng
Number, solves the motion mathematical model and obtains required mechanism kinematic parameter (displacement, speed and acceleration), draw out corresponding fortune
It is dynamic to learn curve (displacement curve, rate curve and accelerating curve), adjust the real-time observed result of length parameters；Then judge whether
Continue selection mechanism configuration to exit if not continuing to select, if continuing selection mechanism configuration, it is to be analyzed to return to selection
Forcing press transmission mechanism configuring step.
The Three-dimensional simulation analysis module is used to, by abstract configuration hypostazation, give user's direct feel, verifies movement locus
The correctness of output, analyze speed, acceleration parameter index；The flow of Three-dimensional simulation analysis module is (referring to Fig. 6)；Start into
Enter system, select forcing press transmission mechanism configuration to be analyzed, show correspondent entity transmission mechanism, carries out three-dimensional modeling, then carry out
Kinetic parameter is arranged in interference detection, into motion simulation, calls and plays three-dimensional artificial results for video, verification movement locus output
Correctness, analysis displacement, speed, acceleration parameter index；Then judge whether to continue selection mechanism configuration, if not continuing to select
It selects, then exits, if continuing selection mechanism configuration, return to selection forcing press transmission mechanism configuring step to be analyzed.
The force analysis module is used for the stressing conditions secondary to each bar during mechanism kinematic and each link and carries out
Analysis, to reasonably select manufacture forcing press rod piece material and size and rod piece link, the use of forcing press is pacified
The complete and service life has the vital effect, the flow of force analysis module to be (referring to Fig. 7)：System is initially entered, selection waits for
Forcing press transmission mechanism configuration is analyzed, corresponding pressure machine transmission mechanism rod piece parameter is inputted, carries out rod piece stress respectively, chain receives
The analyses such as power and sliding block stress export stress curve；Then judge whether to continue selection mechanism configuration, if not continuing to select,
It then exits, if continuing selection mechanism configuration, returns to selection forcing press transmission mechanism configuring step to be analyzed.
The variation of ess-strain when the flexibility analysis module is used to understand each rod piece movement position, quiet dynamic stress
Consider, detailed process is (referring to Fig. 8)；System is initially entered, forcing press transmission mechanism configuration to be analyzed, input pair are selected
Forcing press transmission mechanism rod piece parameter is answered, relevant pressure machine transmission mechanism three-dimension flexible model is built, carries out flexible simulated analysis,
Obtain the results such as loading spectrum, displacement spectra；Flexibility analysis is carried out by the strees strain model generated during the motion, is being shown
Ess-strain variation when being shown on interface at each rod piece at various locations, passes through each rod piece motion bit known to flexibility analysis
The variation of ess-strain when setting, quiet dynamic stress consider；Then judge whether continue selection mechanism configuration, if not after
Continuous selection, then exit, if continuing selection mechanism configuration, returns to selection forcing press transmission mechanism configuring step to be analyzed.
The project plan comparison module includes two aspects, first, different transmission mechanisms compare, second is that same transmission mechanism bar is long
Parameter difference value compares；Detailed process is (referring to Fig. 9)；System is initially entered, forcing press transmission mechanism structure to be analyzed is selected
Type determines whether similar forcing press transmission mechanism configuration, and ratio is done if it is same forcing press transmission mechanism length parameters difference
Compared with, then input each group parameter of corresponding mechanism rod piece, in the same coordinate system export N group parameters under displacement, speed, acceleration
Curve is compared；
It is compared if it is inhomogeneous forcing press transmission mechanism configuration, then selects two kinds of forcing presses for needing to compare transmission
Mechanism configuration, the input phase answer rod piece parameter, and two kinds of forcing press transmission mechanisms are exported in the same coordinate system under relevant parameter
Displacement, speed, accelerating curve, and be compared, intuitively observe what effect of optimization and different data variation generated performance
It influences；Then judge whether that continue selection mechanism configuration exits if not continuing to select, if continuing selection mechanism configuration,
It then returns and determines whether similar forcing press transmission mechanism configuring step.
Class of establishment is selected in mechanism configuration analysis module, it is corresponding that corresponding movement is exported in mechanism module
Parameter, and statics Analysis is carried out by force analysis module, statics analysis results are provided, Three-dimensional simulation analysis is then passed through
Module carries out rigid simulation analysis, determines the reasonability of mechanism；Carry out flexible simulated analysis in flexibility analysis module again, and
Ess-strain variation when being shown on touch-screen display at each rod piece at various locations, ess-strain is represented with a variety of colors
Size；Further compared as project plan comparison module scheme to obtained by, include compared with the transmission mechanism of different leverages, or
Same transmission mechanism length parameters difference value compares, and optional mechanism is carried out integrated transverse and longitudinal comparison, is obtained in real time for choosing side
The quiet dynamic data of case so far completes taking for multi-connecting rod servo press machine drive mechanism performance analysis platform so as to overall merit
It builds.
Using multi-connecting rod servo press machine transmission mechanism as research object, common multi-jointed gear unit leverage has the present invention
Four bars (crank press), six bars (knuckle-lever press), eight bars, ten bars etc. are several, and leverage configuration is commonly used as shown in Fig. 2, establishing
Library uses Pop-up Menu controls and carries out menu mode selection, each mechanism is corresponding with one schematic diagram of mechanism of output；It is various
The characteristic that leverage has because structure is different is different, and forcing press design selection is first according to user's requirement from alternative structure
Preliminary screening is carried out in type library.Mechanism module is the movenent performance for carrying out agency computer analysis and understanding this kind of class of establishment
The required first step taken initially sets up the motion mathematical model of mechanism, and solution can obtain required mechanism kinematic parameter,
Kinematics curve is drawn out in programming, adjusts the real-time observed result of length parameters.In the design of multi-bar mechanical press, leverage
The determination of parameter is crucial, and curve movement is affected by each bar length, in forcing press design process, is proposed according to user
Forcing press curve requirement rationally adjusts that each bar is long, is a cumbersome process, and Performance Analysis Platform of the present invention will greatly simplify this
Process improves efficiency.
New machinery is either designed, or in order to reasonably use existing machinery, is required for the stressing conditions to machinery
It is analyzed, by the variation of the ess-strain known to flexibility analysis when each rod piece movement position, quiet dynamic stress synthesis is examined
Consider；By Three-dimensional simulation analysis module by abstract configuration hypostazation, user's direct feel, verification movement locus is given to export correct
Property, analyze speed, acceleration parameter index.Project plan comparison includes two aspects, first, different transmission mechanisms compare, second is that same biography
Motivation structure length parameters difference value compares.Displacement, speed in the same coordinate system under output different parameters, accelerating curve
It is compared, intuitively observes that effect of optimization, different data change the influence generated to performance.
The application method of Performance Analysis Platform of the present invention is：It is carried out just from alternative configurations library according to user's requirement
Step screening, selectes class of establishment, carries out structural analysis to mechanism configuration, observation operation learns analysis result and judges whether to meet pressure
Machine working characteristics and design requirement, and by adjusting the real-time observed result of length parameters of each rod piece in interface setting to reach
It is required that passing through force model credit analysis (force analysis and flexibility analysis), the selected configuration forcing press mechanism of Three-dimensional simulation analysis verification
Validity and correctness, gained scheme is further compared, includes compared with the transmission mechanism of different leverages or same biography
Motivation structure length parameters difference value compares, and optional mechanism is carried out integrated transverse and longitudinal comparison, obtains the quiet of alternatives in real time
Dynamic data is so as to overall merit.
Detailed process is：
1) Linkage Analysis and configuration schematic diagram preview, primary election configuration scheme；Mainly it is that user shows current four, six, eight, ten
The basic leverage configuration of linkage, when user selects a certain basic leverage configuration, system will be that user shows configuration letter automatically
Figure.
The rod piece numerous types of pressure mechanism, can totally be divided into four-bar mechanism, six-bar mechanism, eight-linkage mechanism and ten bars mechanism
Etc. several classes.The design at this interface mainly simply shows the structure diagram of all kinds of class of establishments.Pass through all kinds of leverage typical structures
Structure diagram displaying, allow the shape of the such forcing press mechanism of user elder generation simple knowledge and such pressure mechanism actually answering
Structure composition in.There are many different types in the mechanism of different rod piece numbers again, is mainly used in this module design
Pop-up Menu controls.
2) kinematics analysis (position, speed and acceleration analysis) of configuration is selected；To all kinds of forcing press mechanism kinematic mistakes
Kinematic parameter in journey carries out analysis calculating, and draws out kinematics curve.After user selects a kind of rod piece type, in order to
Further appreciate that the movenent performance of this kind of class of establishment, it is necessary to which kinematics analysis is carried out to mechanism.Kinematic analysis is main
It is that mechanism kinematic curve (including position curve, rate curve, accelerating curve) is compared by observation, that class machine is selected to analyze
The mechanical performance of structure is better, is more suitable for the design requirement of the main transmission section for forcing press.Carry out kinematics analysis
Before first should, active axle speed long to the bar of mechanism these parameters set, these parameters should be inputted by user oneself,
Analysis comparison is carried out by setting the different motion curve that several groups of different parameters are drawn out, user is helped to select movenent performance
Good mechanism parameter, to primarily determine the basic size of required mechanism.
3) mechanism force analysis；Not only to ensure that mechanism has good mechanical movement performance during design pressure machine
The security performance and life factor that should ensure that mechanism simultaneously, particularly with complex transmission mechanism, using Flexibility point
Analysis can preferably reflect true stress, the deformation of mechanism.Therefore it on mechanism kinematic performance evaluation basis, needs pair
Each bar and the stressing conditions of each link pair are analyzed during mechanism kinematic, to reasonably select the bar of manufacture forcing press
The material and size of part and the link of rod piece have vital effect to the safe to use and service life of forcing press.
Click and show corresponding assay surface on the right side of corresponding pushbutton buttons, input lever length, rotating speed, torque,
Equal basic parameters, in the stress curve of display interface, that is, exportable each main point bar.Size of data is changed, is exported again, together
When be contrasted with previous group data, selected scheme is further analyzed according to comparing result.
4) Three-dimensional simulation analysis；Three-dimensional modeling emulation is carried out to selected scheme, is carrying out kinematics and dynamic analysis
Meanwhile the function curve situation of change of each bar during the motion can only be observed, it can be more intuitively by this function module
Motion process, the interference situation etc. of forcing press transmission system are shown for user.
5) transmission system optimization is compared with.This module provides user's scheme comparing function, first, being passed for same forcing press
Dynamic system length parameters it is preferred, such as change length parameters, the comparison between initial data and optimization data contributes to user to do
Go out to determine；Second is that the comparison between different transmission system servo-pressing machines, such as six bar knuckle-lever presses and triangle toggle link servo pressure
Comparison between power machine.
Performance Analysis Platform of the present invention is that each mechanism establishes motion mathematical model, multigroup each bar bar length of set mechanism and
Active axle speed draws out different motion curve and carries out analysis comparison, is then obtained by solving mechanism kinematic mathematical model
The corresponding kinematic parameter of the mechanism, the kinematic parameter include position during mechanism kinematic, speed, acceleration；
Then in the case where not considering frictional force, inertia force, ignoring gravitational conditions, statics Analysis is carried out to each mechanism, it is false
Fixed dynamic external force-F mechanism applied with pressure reversalP, then system can reach equilibrium state；It is enterprising on this equilibrium state basis
Row statics Analysis is based on statics analysis results, and nominal pressure F is drawn out using Matlab programmingsPCurve, each bar stress are bent
Line；
On the basis of Linkage Analysis, according to parameters such as selected bar length, Geometric Modeling, model machine are carried out in ADAMS softwares
Rigid simulation analysis is completed after inspection, exports press pressure machine sliding block movement path, speed and the accelerating curve of selected configuration, thus
The reasonability of analysis institution's design, if meet design requirement and there is good kinetic characteristic；It is given birth in ADAMS flexibility modules
At neutral model document (i.e. MNF files), after Rigidto Flex, by each rod piece flexibility, establish Flexible Model about Ecology carry out it is flexible
Simulation analysis obtains the results such as loading spectrum, displacement spectra；Elasticity point is carried out by the strees strain model generated during the motion
Analysis, the ess-strain variation when being shown on display interface at each rod piece at various locations, represents stress with a variety of colors and answers
The size of change, red show ess-strain maximum, are gradually reduced later according to the sequence stress degree of yellow, blue, green.
On the basis of drive train power model, it is fixed to require to each component in system model constrain according to the actual motion of forcing press
Justice is allowed to be linked to each other to form an organic whole, so applied dynamics solver (Dynamic Solver) into
Action mechanics simulation analysis, by simulation result output on display interface；So far forcing press mechanics performance analysis platform is completed
It builds.
Embodiment 1
The present embodiment multi-connecting rod servo press machine drive mechanism performance analysis platform, with six-bar linkage servo-pressing machine driver
It is illustrated for structure.Six-bar linkage servo-pressing machine transmission mechanism is selected in mechanism configuration analysis module, then according to following
Process carries out.
1) kinematics analysis
By taking triangle Elbow-bar Transfer Mechanism forcing press as an example, with method of complex vector solve mechanism kinematic during position,
Speed, acceleration equation, determine movement locus,
L1~L6For each pole length, θ1For the rotational angle theta of crank10For initial position when crank and horizontal direction angle, θ i (i=
2,3,4,5,6) indicate corresponding each bar and horizontal square to angle, r is the displacement of sliding block,
R=-l3sinθ3-l5sinθ5-l6siunθ6
On this basis, length parameters, observation analysis curve movement are inputted at interface with man-machine interaction mode.
2) force model credit is analysed
It is not only to influence the important parameter of mechanical movement and power performance due to acting on power mechanically, and is also certainly
The important evidence of the Intensity Design and planform of fixed machinery, so new machinery is whether designed, or in order to reasonably make
With existing machinery, the stressing conditions to machinery is required for analyze.Do not consider frictional force, inertia force, ignore gravitational conditions
Under, carry out static analysis by taking servo-pressing machine triangle elbow-bar mechanism as an example, it is assumed that apply outside the dynamic with pressure reversal to sliding block
Power-FP, then system can reach equilibrium state.Statics Analysis is carried out on the basis of this equilibrium state.Based on statics Analysis knot
Fruit draws out nominal pressure F using Matlab programmingsPCurve, sliding block stress FFCurve, triangle toggle link B point normal force FABNAnd D points
Stress FCDCurve (such as Figure 11).Sliding block stress FFCurve is as shown in Figure 3.
After Rigidto Flex in ADAMS softwares, inputs corresponding MNF files and can be obtained answering during the motion
Stress-strain is analyzed, and system after determining of clicking automatically analyzes the model for generating ess-strain during the motion, clicks later
The variation of ess-strain when operation can be seen at each rod piece of triangle toggle link part at various locations, each color represent
The size inspection method of the size of ess-strain, each ess-strain is observation color, red maximum, later to be yellow, blue,
Green represents the size degree of stress, facilitates the stress variation that observation each section rod piece is located at various locations.
2) simulation analysis
On the basis of Such analysis is studied, be based on Virtual Prototype Technique, using ADAMS softwares to triangle elbow-bar mechanism into
Row kinematics and Dynamics Simulation Analysis, the correctness of verification movement locus output, analyze speed, acceleration parameter index.
Setting need to be constrained and driven first in ADAMS, restriction relation must be added between all parts, define zero
Relative motion between the connection type and part of part.It is used to rotation by the quality to each component of forcing press main transmission
The automatic Picking of the parameters such as amount, generates complete system simulation model.Each component is defined according to forcing press actual transmission situation
Between constraint and driving, complete constraint and load setting after, just initially enter the simulation analysis stage.ADAMS is for different imitative
True purpose and model, provide different solvers, including kinematics solution device (Kinematics Solver), dynamics are asked
Device (Dynamic Solver), statics solver (Static Solver) etc. are solved, therefore on the basis of kinetic model, root
It requires to carry out constraint definition to each component in system model according to the actual motion of forcing press, is allowed to be linked to each other to form one
A organic whole, and then analog simulation, then be incorporated on a platform by interface.Platform after integration uses for user
An organic conception is established in study, runs through to get off from Choosing Type Analysis, forms a complete flow.
3) project plan comparison
Project plan comparison includes two aspects, first, different transmission mechanisms compare, second is that same transmission mechanism length parameters are different
Value compares.By taking triangle Elbow-bar Transfer Mechanism scheme as an example, L in former scheme1~L6The long original dimension of bar is set as first group of data,
Change L4With L3The long dimension scale coefficient k of bar4、L2With L4The long dimension scale coefficient k of bar2Value can obtain second group of data, now take
Minimum value k4=2.15, k2=1.21, thereby determine that L1~L6Second group of data of the long size of bar；Introduce rate smoothing punishment because
K after son4=1.9, k2=1.19, obtain L1~L6The long size third group data of bar, in the same coordinate system output displacement, speed,
Accelerating curve is compared, and intuitively observes effect of optimization, the influence that every group of data variation generates performance.Figure 10 is this reality
Apply the selection interface of each parameter of a project plan comparison.
Illustrate to optimize front and back structural parameters comparison result by triangle elbow-bar mechanism example as shown in table 1.
1 triangle Elbow-bar Transfer Mechanism of table optimization front-end geometry parameter compares
Sample result shows under the premise of meeting design performance index and design requirement, is rushed in the load of slide block down
Working stage is pressed, effective torque needed for former scheme toggle link is 12042Nm, and first step optimization rear crank effective torque demand is reduced to
4144Nm reduces 65%,；Effective torque demand is reduced to 4856Nm after second step optimization, 59.7% is reduced, if electric
Machine reduction ratio is 1/30, then motor effective torque is 161.9Nm.But compared with the first step, the speed after second step optimization is bent
Line has apparent improvement, the speed in backhaul stage to be improved, that is, improves the quickreturn characteristics of mechanism, while being slided after optimizing
Block contact plate speed is reduced and is become flat, and is reduced impact of the sliding block to plate, is achieved preferable effect of optimization.It plays
The reinforcement characteristic of multi-connecting-rod mechanism, simplifies model solution process one by one, obtains the quiet dynamic data of alternatives in real time
With overall merit, efficiently solve the problems, such as that mechanism configuration learns abstract.
The present invention does not address place and is suitable for the prior art.
Claims (6)
1. a kind of multi-connecting rod servo press machine drive mechanism performance analysis platform, including hardware components and software section, feature
It is that hardware components include computer and touch display screen；Software section includes：Mechanism configuration analysis module, motion analysis mould
Block, Three-dimensional simulation analysis module, force analysis module, flexibility analysis module, project plan comparison module and help module, software section
Load is in computer；
The mechanism configuration analysis module is leverage configuration library, uses Pop-up Menu controls and carries out menu mode selection, various
Leverage selects forcing press transmission mechanism configuration into system, shows institute first because the different characteristics having of structure are different
It selects member structure and is subject to structure explanation, forcing press design selection is first according to user's requirement from alternative leverage configuration library
Middle carry out preliminary screening；
The mechanism module is according to multigroup each bar length parameters of multi-connecting rod servo press machine transmission mechanism, drawing out
Kinematics curve under different bar elongate members, and analysis comparison can be carried out in real time；
The Three-dimensional simulation analysis module is used to, by abstract configuration hypostazation, give user's direct feel, verification movement locus output
Correctness, analysis displacement, speed, acceleration parameter index；
The force analysis module is used for the stressing conditions secondary to each bar during mechanism kinematic and each link and analyzes,
To reasonably select manufacture forcing press rod piece material and size and rod piece link；
The variation of ess-strain when the flexibility analysis module is used to understand each rod piece movement position, quiet dynamic stress synthesis
Consider, detailed process is；System is initially entered, forcing press transmission mechanism configuration to be analyzed, input corresponding pressure machine transmission are selected
Mechanism rod piece parameter, build relevant pressure machine transmission mechanism three-dimension flexible model, carry out flexible simulated analysis, obtain loading spectrum,
Displacement spectra；Flexibility analysis is carried out by the strees strain model generated during the motion, each bar is shown on display interface
Ess-strain variation when at part at various locations, passes through the ess-strain known to flexibility analysis when each rod piece movement position
Variation, quiet dynamic stress consider；Then judge whether that continue selection mechanism configuration exits, such as if not continuing to select
Fruit continues selection mechanism configuration, then returns to selection forcing press transmission mechanism configuring step to be analyzed；
Class of establishment is selected in mechanism configuration analysis module, it is corresponding that corresponding movement ginseng is exported in mechanism module
Number, and statics Analysis is carried out by force analysis module, statics analysis results are provided, Three-dimensional simulation analysis mould is then passed through
Block carries out rigid simulation analysis, determines the reasonability of mechanism；Flexible simulated analysis is carried out in flexibility analysis module again, and is being touched
Ess-strain variation when being shown on panel type display at each rod piece at various locations is touched, ess-strain is represented with a variety of colors
Size；Further compared as project plan comparison module scheme to obtained by, include compared with the transmission mechanism of different leverages, or it is same
One transmission mechanism length parameters difference value compares, and optional mechanism is carried out integrated transverse and longitudinal comparison, obtains alternatives in real time
Quiet dynamic data so as to overall merit, so far complete building for multi-connecting rod servo press machine drive mechanism performance analysis platform.
2. multi-connecting rod servo press machine drive mechanism performance analysis platform according to claim 1, it is characterised in that described
The detailed process of mechanism configuration analysis module is：Start, leverage configuration is selected, if being selected as four-bar mechanism, in four-bar mechanism
A kind of middle four-bar mechanism type of selection if six-bar mechanism, then exists if not four-bar mechanism, then determine whether six-bar mechanism
A kind of six-bar mechanism type is selected in six-bar mechanism；If judgement is not six-bar mechanism, eight-linkage mechanism is determined whether, if eight
Linkage then selects a kind of eight-linkage mechanism type in eight-linkage mechanism；Mechanism configuration selected by being judged always by this whether be
Research press transmission mechanism configuration to be designed；
If having selected the specific member structure under certain leverage configuration, corresponding schematic diagram of mechanism is shown on interface, and export
Corresponding mechanism structure explanation；Then judge whether to continue that leverage configuration is selected to exit if not continuing to select, if after
Continuous selection leverage configuration, then return to selection leverage configuring step.
3. multi-connecting rod servo press machine drive mechanism performance analysis platform according to claim 1, it is characterised in that described
The detailed process of mechanism module is：Start, selects forcing press transmission mechanism configuration to be analyzed, establish corresponding transmission mechanism
Motion mathematical model inputs corresponding length parameters, solves the motion mathematical model and obtains required mechanism kinematic parameter, mechanism
Kinematic parameter includes displacement, speed and acceleration, draws out corresponding kinematics curve, and adjustment length parameters observe knot in real time
Fruit；Then judge whether that continue selection mechanism configuration exits if not continuing to select, if continuing selection mechanism configuration,
It returns and selects forcing press transmission mechanism configuring step to be analyzed.
4. multi-connecting rod servo press machine drive mechanism performance analysis platform according to claim 1, it is characterised in that described
The flow of Three-dimensional simulation analysis module is；System is initially entered, forcing press transmission mechanism configuration to be analyzed is selected, is shown corresponding real
Body transmission mechanism carries out three-dimensional modeling, then carries out interference detection setting kinetic parameter and call into motion simulation and play three-dimensional
Simulation video is as a result, the correctness that verification movement locus exports, analysis displacement, speed, acceleration parameter index；Then judge be
No continuation selection mechanism configuration exits if not continuing to select, if continuing selection mechanism configuration, returns and selects to wait for point
Analyse forcing press transmission mechanism configuring step.
5. multi-connecting rod servo press machine drive mechanism performance analysis platform according to claim 1, it is characterised in that stress
The flow of analysis module is：System is initially entered, forcing press transmission mechanism configuration to be analyzed, input corresponding pressure machine transmission are selected
Mechanism rod piece parameter carries out rod piece stress, chain capacity and sliding block force analysis respectively, exports stress curve；Then judge be
No continuation selection mechanism configuration exits if not continuing to select, if continuing selection mechanism configuration, returns and selects to wait for point
Analyse forcing press transmission mechanism configuring step.
6. multi-connecting rod servo press machine drive mechanism performance analysis platform according to claim 1, it is characterised in that described
The detailed process of project plan comparison module is；System is initially entered, forcing press transmission mechanism configuration to be analyzed is selected, determines whether
Similar forcing press transmission mechanism configuration compares if it is same forcing press transmission mechanism length parameters difference, then inputs correspondence
The each group parameter of mechanism rod piece, displacement, speed in the same coordinate system under output N group parameters, accelerating curve are compared；
It is compared if it is inhomogeneous forcing press transmission mechanism configuration, then selects two kinds of forcing press transmission mechanisms for needing to compare
Configuration, the input phase answer rod piece parameter, exported in the same coordinate system displacement of two kinds of forcing press transmission mechanisms under relevant parameter,
Speed, accelerating curve, and be compared, intuitively observe that effect of optimization and different data change the influence generated to performance；
Then judge whether that continue selection mechanism configuration exits if not continuing to select, if continuing selection mechanism configuration, returns
It returns and determines whether similar forcing press transmission mechanism configuring step.
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