CN105082609B - A kind of method of oil cylinder automatic stroke-regulating - Google Patents
A kind of method of oil cylinder automatic stroke-regulating Download PDFInfo
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Abstract
A kind of method that the present invention relates to oil cylinder automatic stroke-regulating, by modulus transition element to the base substrate thickness H after compactingActualMeasure, and transmit measurement result to memory cell；Initial pressure in the pressing process of upper mold core, initial position, termination pressure and final position recorded simultaneously and judge, thus calculating the whereabouts adjusted value Rectify of lower mold core.Further, also to the speed in upper mold core pressing process is the most abnormal and whether superpressure judges, it is ensured that the security of the oil cylinder compacting course of work.By the adjustment to lower mold core, thus realize oil cylinder stroke and automatically adjust, it is ensured that the accuracy of thickness after powder pressing forming.
Description
Technical field
A kind of method that the present invention relates to oil cylinder automatic stroke-regulating, a kind of oil for pressed powder
The method of cylinder automatic stroke-regulating.
Background technology
Existing ceramic body moulding process to adobe finished product thickness require high, the most compressing after base substrate
Thickness franchise is ± 0.30mm, and the adobe of High Tier Brand becomes flat and then requires higher, and franchise brings up to ± 0.1mm.
Affect base substrate thickness error at formative stage mainly to be suppressed by packing volume, powder particles degree and moisture content
The final molding pressure these three factor that equipment is applied on powder determines.
When the final press power being applied on powder and powder particles degree, moisture content one timing, packing volume
Size presents proportional relation with the thickness of finished product adobe thickness.If it is packing volume and powder particles degree, aqueous
Rate one timing, the press power being finally applied on powder and base substrate final thickness present inverse relation, the most finally
The biggest then final base substrate thickness of shaping press power is the thinnest, otherwise the thickest.
Referring to Fig. 1, it is existing ceramic powder volume cloth principle schematic.Under touch core 8 and lower mold oil cylinder
10 rigid attachment.Hydraulic oil source enters in the chamber, lower oil cylinder piston chamber of lower mold oil cylinder 10 and plunger 11 formation,
Driving lower mold oil cylinder moves up and down；Lower mold core sensor unit 9 detects the movement position of lower mold oil cylinder.Filler
Time, take advantage of the distribution device 5 of powder to touch above core 8 under being positioned at.When lower mold oil cylinder 10 moves downward, drive
The lower mold core 8 of rigid attachment moves downward therewith, and lower mold core 8 and fixed low mold frame 6 form one
Cavity volume V.Originally dress takes advantage of the powder in distribution device 5 to be formed with low mold frame 6 because deadweight falls into lower mold core 8
Cavity volume V in, complete filler.Under touch the real-time displacement value of core 8 and examined by lower mold core displacement transducer assembly 9
Survey.
When blanking is abundant, packing volume is exactly volume V.Therefore the cavity volume that lower mold core 8 is formed with low mold frame 6
Volume V reflect powder filling number, volume V is fixed by the height H of floor space A of cavity volume and cavity volume,
That is V=A × H.Wherein, A is definite value, because its die cavity floor space A is exactly after mould machine completion of processing
Definite value.The height H of filler cavity volume is equal to the movement travel H of lower mold oil cylinder 10Cylinder, H=HCylinder.By
Upper known, that affect packing volume is the movement travel H of lower mold oil cylinder 10Cylinder。
Touching core 8 under after filler, to rest on filler end position motionless.Distribution device 5 rearward movement is withdrawn from
Nip region, concedes space for main piston 2 descending motion.Hydraulic oil source enters master cylinder 1 and main piston 2
In the main oil cylinder piston chamber formed, drive main piston 2 descending motion.Because upper mold core 3 is firm with main piston 2
Property couple, the descending motion of main piston 2 is exactly that upper mold core 3 is near being seated in lower mold core 8 and low mold frame 6 shape
The process of powder in one-tenth cavity volume.After upper mold core 3 contacts powder, hydraulic system continues to master cylinder 1 and master
The main piston chamber of piston 2 formation is oil-filled sets up pressure.This pressure-driven main piston 2, upper mold core 3 move downward
Compacting powder, during compacting, upper mold core 3 moves downward.Real-time pressure value in main piston chamber is by pressure sensing
Device 12 detects.The upper mold core 3 real-time displacement value of lost motion stage and pressing stage is total by upper mold core sensor
Become 4 detections.
Known by above-mentioned, during compacting under touch core 8 and low mold frame 6 transfixion, upper mold core 3 moves downward.
That is during compacting, displacement produced by upper mold core 3 is exactly the thickness that powder is compressed, master cylinder 1 and master
Produced pressure in the main piston chamber that plunger shaft 2 is formed, conversion is exactly the press power that powder bears.
Regulation to base substrate thickness, is presently mainly by adjusting lower mold core 8 and low mold frame 6 during filler
The size of formed volume V realizes.According to V=A × H, chamber area A is definite value, and H is touched by down
The H of oil cylinder 10CylinderDetermine, therefore really move downward stroke H by touch oil cylinder 10 under adjustingCylinder
The regulation to base substrate thickness realized.
Referring to Fig. 2, it is that existing base substrate thickness adjusts flow chart.Operator sets the thickness requirement of certified products
HSet, thickness tolerance requirements scope △ HSet, initial value be on the occasion of and the fixing thickness of absolute value adjust step-length tAdj,
Such as tAdj=2.After the compacting of base substrate each time terminates, controller reads upper mold core position by modulus transition element
The reading of displacement sensor 4, this reading reflects the thickness H of base substrate after shapingActual。
By the actual (real) thickness H of base substrate after shapingActualWith setting thickness HSetComparing, gained difference is
△HActual, △ HActual=HActual-HSet.This step is for calculating actual base substrate thickness HActualWith desired setting
Thickness HSetBetween error.
If △ is HActualThan base substrate thickness franchise value △ HSetLittle, it is believed that base substrate thickness in tolerance,
Do not carry out any adjustment during compacting next time；
If △ is HActualThan base substrate thickness franchise value △ HSetGreatly, △ H is determined whetherActualResult be on the occasion of
Or negative value, that is judge that molded base substrate is thinning or thickening, such as △ HActualResult is negative value, and base substrate is thick
Spend thinner than qualified thickness, if △ is HActualResult be on the occasion of, base substrate thickness is thicker than qualified thickness.
If △ is HActual< 0, when upper once filler, filler volume should be increased, so that accommodating more powder,
Thus compressing adobe is close to qualified thickness；Therefore by target stroke H of lower mold oil cylinder in Fig. 1 10Target
It is changed to HTarget=HTarget+tAdj×|△HActual|。
If △ is HActual> 0, when upper once filler, filler volume should be reduced, so that accommodating less powder,
Thus compressing adobe is close to qualified thickness；Therefore adjustment step-length is taken negative value, tAdj=-tAdj, and will figure
Target stroke H of lower mold oil cylinder 10 in 1TargetChange HTarget=HTarget+tAdj×|△HActual|。
The method possesses the function that thickness adjusts to a certain extent, but can not differentiate is owing to packing volume becomes
The final molding pressure that change, powder particles degree and water-cut variation or press device are applied on powder becomes
The base substrate thickness change changed and cause.It is difficult to the improvement idea correct to the producer.
Guide to the adjustment that the producer is correct.And due to adjustment step-length t using absolute value to fixAdj,
Too much or Adjustment effect is the most discrete to result in adjustment step number, it is impossible to rapid convergence, therefore also reduces finished product
Rate.
Summary of the invention
The invention reside in the shortcoming overcoming prior art with not enough, it is provided that the side of a kind of oil cylinder automatic stroke-regulating
Method.
The present invention is to be realized by following technical scheme: a kind of method of oil cylinder automatic stroke-regulating, bag
Include following steps:
Step one, recycling number of times k to parameters judge, when k is more than or equal to setting number
During value m, perform step 2；When k is less than when setting numerical value m, perform step 3；Wherein, numerical value m is
Set reduced value, and k and m is positive integer；
Step 2: pressure set points modified logo is accorded with PSetChanged judges；If PSetChanged
When being judged as true, perform step 4；If it is not, then perform step 5；
Step 3: by original filler depth HSetIt is assigned to intermediate variable L, and performs step 5；
Step 4: lower mold core is with initial fillers depth HSetAs moving target, by HSetIt is assigned to HTarget,
And perform step 6；
Step 5: intermediate variable L is assigned to HTargetAs the movement travel distance of lower mold core, and perform step
Rapid six；
Step 6: lower mold core is with HTargetFor aim parameter, perform falling motion；And by lower mold core displacement sensing
The distance of fall of lower mold core is detected by device, if distance of fall accurately reaches HTargetDuring value, then perform step
Seven；If distance of fall fails accurately to arrive HTargetDuring value, and jump out this method；
Step 7: upper mold core declines suppresses, and performs step 8；
Step 8: whether k is more than array E to judge parameter cyclic access timesArrayColumns n；If k > n,
Then remove array EArrayIn the row that store at first, and the method moved to the n-th row according to the (n+1)th column data moves
Dynamic data row, perform step 9 afterwards；If k≤n, the most directly perform step 9；Wherein EArrayIt is an i
The two-dimensional array of row n row, in order to store parameter during upper mold core compacting, i or n is positive integer, and i is one
Positive integer more than or equal to 2；
Step 9: to real-time pressure P in main piston chamberRealWith fuel tank back-pressure PSwitchDetect and sentence
Disconnected；Work as PReal≥PSwitchTime, terminate this method flow；Work as PReal<PSwitchTime, the most directly perform step
Ten；
Step 10: at the positional value Pos of moment upper mold core that starts to pressurizeRealIt is assigned to the initial of kth time compacting
Position parameter PosStart.k, PosStart.k=PosReal；Initial position parameter PosStart.kIt is placed into two-dimensional array EArray
Arbitrarily kth column position in a line i1, EArray[i1][k]=PosStart.k；Simultaneously by two-dimensional array EArrayDeposit to depositing
After in reservoir, perform step 11；
Step 11: when upper mold core continues compacting powder, continue the real-time pressure P in main piston chamberReal
Detect, work as PRealValue is less than setup pressure value PSetTime, terminate this method flow；
Work as PRealValue is more than or equal to setup pressure value PSetTime, equipment stops compacting；And by upper mold core this moment
Final position value PosEndIt is assigned to kth time final position parameter PosEnd.k, PosEnd.k=PosReal；Pos againEnd.k
Leave two-dimensional array E inArrayKth column position, E in any a line i2 in addition to i1Array[i2][k]=PosEnd.k；And
By two-dimensional array EArrayAfter being stored in memory, perform step 12；
Step 12: parameter cyclic access times k is judged；When k value is more than 2, calculate two
Dimension group EArrayThe initial position parameter Pos of middle k upper mold coreStartArithmetic mean of instantaneous value, and by this mean value
It is defined as starting to suppress initial position reference value Pos in momentStart.Ref, PosStart.Ref=
(PosStart.1+PosStart.2+PosStart.3…PosStart.k)/k；Perform step 13 afterwards；When k value less than or etc.
In 2 time, terminate this method flow；
Step 13: judge parameter cycle criterion k, when k < during m, terminates this method stream
Journey；As k >=m, perform step 14；
Step 14: to upper mold core in initial position parameters Pos beginning setting up the pressure momentStartWith start to build
Initial position reference value Pos during vertical pressureStart.RefCompare；If PosStart>PosStart.Ref, then show
The volume of powder to be compressed is little, and to cause setting up pressure spot low higher than reference point, then by filler deficiency identifier set,
PodwerScarcity=True；If PosStart<PosStart.Ref, show that the volume of powder to be compressed causes greatly
Set up pressure spot lower than reference point, then by too much for filler identifier set, PodwerSurplus=Ture, if
It is PosStart=PosRef., show the volume of powder to be compressed just, filler be suitable for identifier set,
PodwerFitting=Ture；And perform step 15；
Step 15: the reason changing base substrate thickness judges, and is adjusted according to reason；If
PodwerScarcity=True, by regulation coefficient Coef.=1；If PodwerSurplus=Ture, by adjustment it is
Number Coef.=-1；If PodwerFitting=Ture, by regulation coefficient Coef.=0；It is further continued for performing step 10
Six；
Step 10 six: and calculate the thickness deviation values of reality | △ Hacttual|, | △ Hacttual| by actual base substrate thickness
HActualWith setting value HSetBetween base, the absolute value of difference determines, and by thickness deviation values | △ Hacttual| it is stored in
Reservoir；And utilize initial position value Pos beginning setting up pressure moment upper mold coreStartStop with during blank forming
Upper mold core final position value Pos during pressureEndDifference, the stroke that after calculating blank forming, powder is compressed
△DepthFLan, therefore compression ratio Comp.RateEqual to depth of packing △ DepthFillingThan the stroke compressed
△DepthFLan, i.e. Comp.Rate=△ DepthFilling/△DepthFLan；And the thickness Rectify=of required adjustment
|△Hacttual|×Comp.Rate× Coef, is stored into the thickness Rectify performing required adjustment afterwards in holder,
Perform step 10 seven again.
Step 10 seven: to base substrate actual error △ HActtualWith production franchise △ HSetCompare；Wherein, real
Border error delta HActtual=HActtual-HSet, and HSetWith △ HSetIt is respectively the setting value of qualified products and produces fair
The setting value of difference；If | △ Hacttual|>|△HSet|, then perform step 10 eight；If | △ Hacttual|≤|△HSet| time, then
Do not perform any adjustment, terminate this method flow.
Step 10 eight: setting value is modified identifier PSetChanged；If PSetWhen Changed is judged as true,
To not adjust, and parameter cyclic access times k will be entered as 1, and terminate this method flow；If it is not,
Then perform step 10 nine.
Step 10 nine: then k is increased by 1, and filler degree of depth median is adjusted；I.e. k=k+1,
L=L+Rectify, terminates this method flow afterwards.
Compared to prior art, the present invention is by the initial bit started when suppressing in upper mold core pressing process
Put and carry out record, and the arithmetic average of multiple initial positions is set to the reference value of initial position；And lead to
Initial position when crossing compacting every time contrasts with reference value, show that filler is the most sufficient or the most too much,
Thus realize the adjustment of the falling stroke of the lower mold core of oil cylinder next time.
As a further improvement on the present invention, in step 10, will also start the main piston chamber pressure in pressurization moment
Power PRealThe initial pressure parameter P that assignment is suppressed to kth timeStart。k, i.e. PStart。k=PReal；Again by kth time
The initial pressure parameter P of compactingStart。kIt is placed into two-dimensional array EArrayIn in addition to i1 and i2 in any a line i3
Kth column position, EArray[i3][k]=PStart.k；
In described step 11, work as PRealValue is more than or equal to setup pressure value PSetTime, also will lead this moment
Main piston cavity pressure P between oil cylinder and main pistonRealTermination pressure parameter P for assignment to kth timeEnd.k,
PEnd.k=PReal；The most respectively by PEnd.kLeave two-dimensional array E inArrayIn in addition to i1, i2, i3 any a line i4
Kth column position, EArray[4i][k]=PEnd.k；
In described step 12, when k value is more than 2, to two-dimensional array EArrayIn k compacting start
Moment main piston cavity pressure value PStart, k compacting finish time plunger shaft pressure value PEnd, k compacting terminate
Moment upper mold core 3 shift value PosEndArithmetic mean of instantaneous value, and by these mean value definitions for starting to suppress the moment
Press power reference value PStart.Ref, terminate compacting the moment press power reference value PEnd.RefWith the end compacting moment
Reference by location value PosEnd.Ref, PStart.Ref=(PStart.1+PStart.2+PStart.3+…PStart.k)/k,
PEnd.Ref=(PEnd.1+PEnd.2+PEnd.3+…PEnd.k)/k, PosEnd.Ref=(PosEnd.1+PosEnd.2+PosEnd.3+…
PosEnd.k)/k；Utilize two point form to calculate powder and be pressed period born pressure and the reference of compression travel
Slope KRef=(PosEnd.Ref-PosStart.Ref)/(PStart.Ref-PEnd.Ref)；Utilize two point form to calculate kth time simultaneously
" pressure-displacement " slope KReal, KReal=(PosEnd.k-PosStart.k)/(PStart.k-PEnd.k)；
After described step 14 completes, before performing step 15, also to kth time " pressure-displacement "
Actual slope KRealWith reference slope KRefCompare；If KReal<KRef, then show powder particles degree and
Water-cut variation causes powder resistance to compression shrinkage to uprise, by closely knit for powder identifier set,
CloseGrained=True；If KReal>KRef, show that powder particles degree and water-cut variation cause powder resistance to compression
Shrinkage step-down, by loose for powder identifier set, Runny=True；If KReal=KRef, then powder is shown
Granularity and water-cut variation do not change, and powder density is suitable for identifier set, Fitting=True；
In step 15, before performing step 10 six, also to CloseGrained, Runny, Fitting
Judge respectively；If CloseGrained=True, by regulation coefficient Coef.=-1, and in man-machine interaction
Providing information on interface, prompting powder particles degree and moisture content change；If Runny=True,
By regulation coefficient Coef.=1, prompting powder particles degree and moisture content change；If Fitting=True, will
Regulation coefficient Coef.=0.
Compared to prior art, this step suppressed by oil cylinder further during the born pressure of filler and compression
Stroke, draws with reference to slope；Further, by actual slope K of compacting every timeRealWith reference slope KRef's
Relatively, powder particles degree and moisture content are judged.
As a further improvement on the present invention, after institute's step 8 completes, before performing step 9, also
Following steps need to be performed: reference velocity v of upper mold core when kth time cyclic pressing is begun setting up pressurekEnter
Row calculates, vk=△ s/ △ t；And calculating vkAfter, by vkLeave two-dimensional array E inArrayThe 5th row
Kth column position, and by EArrayIt is stored in memory；Wherein △ t is the time value set, and △ s is main piston chamber
The displacement that before beginning setting up pressure, in △ t, upper mold core is walked；The span of described △ t is 1～10ms；
In described step 12, calculate the upper mold core setting up the pressure moment also by arithmetic mean of instantaneous value method
With reference to average speed VelRef, VelRef=(v1+v2+…+vk)/k；
In described step 13, as k >=m, further comprised the steps of: kth before performing step 14
Secondary upper mold core starts speed v when suppressingkJudge, work as vk>a×VelRefTime, then judge under lower mold core
Line speed is abnormal, and upper mold core velocity anomaly identifier set, Abnormal=True, and assignment can determine whether mark
Will symbol JudgeEnable=false, performs step 10 seven afterwards；Work as vk≤a×VelRefTime, continue executing with step
14；Wherein, a is any number, for reference to average speed VelRefZoom factor；
In described step 2, also velocity anomaly identifier Abnormal is judged；If PSetChanged
It is judged as when true or velocity anomaly identifier Abnormal is true, performs step 4；If it is not, then perform
Step 5.
Compared to prior art, this step further by the pressing speed of upper mold core in oil cylinder is detected,
Prevent the phenomenon causing the powder in pressing process to splash due to velocity anomaly, it is ensured that cylinder efficient process
Security.
As a further improvement on the present invention, in step 13, as k >=m, perform step 14 it
Before further comprise the steps of:
Judge to terminate termination pressure P in the main piston chamber between compacting moment master cylinder and main pistonEndWhether surpass
Difference；When | PEnd-PSet| > △ P, then belong to overproof and pressure is changed identifier PEndChanged set,
PEndChanged=true, and assignment can determine whether identifier JudgeEnable=false, performs step 10 afterwards
Seven；
When | PEnd-PSet| during≤△ P, then by PEndChanged is designated False, and continues executing with step 14；
Wherein △ P is the tolerance set；
In step 2, also pressure is changed identifier PEndChanged judges；If PEndChanged
It is judged as true or PSetChanged is judged as when true or velocity anomaly identifier Abnormal is true,
Perform step 4；If it is not, then perform step 5.
Compared to prior art, this step is further by termination pressure P to main piston chamberEndThe most overproof
Judge, thus the final molding pressure stability of powder is judged, draw and whether adjust in this method
In whole category.
As a further improvement on the present invention, in described step 9, P is worked asReal≥PSwitchTime, assignment can be sentenced
Disconnected identifier JudgeEnable=false, and perform step 10 seven；
In described step 11, work as PRealValue is less than setup pressure value PSetTime, assignment can determine whether identifier
JudgeEnable=false, and perform step 10 seven；
In described step 12, when k value is less than or equal to 2, assignment can determine whether identifier
JudgeEnable=false, and perform step 10 seven；
In described step 13, when k < during m, assignment can determine whether identifier JudgeEnable=false, and
Perform step 10 seven；
In described step 10 six, also set can determine whether identifier JudgeEnable=true；
In step 10 seven, first to can determine whether that judgement symbol symbol JudgeEnable judges；If
JudgeEnable is true, then continue base substrate actual error △ HActtualWith production franchise △ HSetCompare；
If JudgeEnable is false, then terminate this method flow.
As a further improvement on the present invention, in described step 6, if distance of fall fails accurately to arrive
HTargetDuring value, then send information to human-computer interaction interface, and jump out this method；In step 15,
If Runny=True, by regulation coefficient Coef.=1, and on human-computer interaction interface, provide information, carry
Show that powder particles degree and moisture content change.
Compared to prior art, the information that this step realizes pressing process by human-computer interaction interface further passes
Defeated, it is simple to staff checks.
As preferably, described array EArrayIt it is the two-dimensional array of one 5 row n row.
In order to be more fully understood that and implement, describe the present invention below in conjunction with the accompanying drawings in detail.
Accompanying drawing explanation
Fig. 1 is existing ceramic powder volume cloth principle schematic.
Fig. 2 is that existing base substrate thickness adjusts flow chart.
Fig. 3 is the flow chart of the oil cylinder automatic stroke-regulating of the present invention.
Fig. 4 is data record and the analysis of causes flow chart of the present invention.
Detailed description of the invention
Before implementing this method flow process, need to walk in relevant variable parameter input store for following methods
Suddenly call and store.Described variable parameter includes:
Number of times parameter: the recycling number of times k of parameter, number of times set and compare numerical value m；
Identifier parameter: pressure change identifier PEndChanged, setting value are modified identifier
PSetChanged, velocity anomaly identifier Abnormal, filler deficiency identifier PodwerScarcity, filler
Too much identifier PodwerSurplus, filler are suitable for identifier PodwerFitting, the closely knit identifier of powder
CloseGrained, powder loose identifier Runny, powder density are suitable for identifier Fitting, can determine whether mark
Know symbol JudgeEnable；
Storage parameter: in order to store the two-dimensional array E of dataArray, two-dimensional array EArrayColumns n；
Speed parameter: begin setting up reference velocity v of the upper mold core of pressurek, main piston chamber begin setting up pressure
The displacement △ s of upper mold core walking, reference average speed Vel in front △ tRef, with reference to average speed VelRefCoefficient
Parameter a；
Pressure variable: actual final pressure PEnd, pressure set points PSet, real-time pressure P in main piston chamberReal、
Fuel tank back-pressure PSwitch, kth time initial pressure parameter PStart。k, the termination pressure parameter P of kth timeEnd.k、
Initial pressure reference value PStart.Ref, termination pressure reference value PEnd.Ref；
Position parameter: real time position value Pos of upper mold coreReal, kth time final position parameter PosEnd.k, eventually
Stop bit puts reference value PosEnd.Ref；
Slope parameter: with reference to slope KRef, actual slope K of kth time " pressure-displacement "Real；
Filler degree of depth parameter: original filler depth HSet, actual filler depth HTarget, intermediate variable L；
Base substrate thickness adjustment parameter: base substrate actual (real) thickness value HActual, base substrate actual error △ HActtual, produce
Franchise △ HSet, regulation coefficient Coef, the whereabouts adjusted value Rectify of lower mold core, compression ratio Comp.Rate、
Depth of packing △ DepthFilling, the falling stroke △ Depth of upper mold coreFLan。
Referring to Fig. 3, it is the method flow diagram of oil cylinder automatic stroke-regulating of the present invention.A kind of oil of the present invention
The method of cylinder automatic stroke-regulating, comprises the following steps:
S1: judge the recycling number of times k of parameters, when k is more than or equal to setting numerical value m
Time, perform step S2；When k is less than when setting numerical value m, perform step S3；Wherein, numerical value m is for setting
Determining reduced value, in the present embodiment, the numerical value m set is as 1000；
This step is repeated several times operation by checking whether the recycling number of times k of each parameter lives through, that is
Judge that each parameter changes either with or without reusing through m circulation, thus whether judge brick machine
Being in the steady production stage, this step avoids equipment to be adjusted in the debugging stage.
S2: pressure is changed identifier PEndChanged, setting value are modified identifier PSetChanged and speed
The abnormal identifier Abnormal of degree judges；If PEndChanged is judged as true or PSetChanged sentences
Break when being true for true or velocity anomaly identifier Abnormal, perform step S4；If it is not, then perform
Step S5.
This step judges whether previous actual final pressure PEndChange (with pressure change mark
Know symbol PEndChanged represents) or previous pressure set points be modified and (be modified identifier with setting value
PSetChanged represents) situation occur, or the speed of upper mold core 3 pressurization moment velocity anomaly (with
Velocity anomaly identifier Abnormal represents).
S3: by original filler depth HSetIt is assigned to intermediate variable L, and performs step S5.
This step is by by original filler depth HSetIt is assigned to intermediate variable L, convenient by intermediate variable L
The filler degree of depth is assigned to practical filling material depth HTarget。
S4: lower mold core 3 is with initial fillers depth HSetAs moving target, by HSetIt is assigned to HTarget, and
Perform step S6；
This step purpose is the actual final pressure change avoiding causing because of pressure set points change, causes into
Adobe thickness change after type, or the powder splashing that upper mold core velocity anomaly causes.Therefore continue with HSetFor target
Blanking thickness.
S5: intermediate variable L is assigned to HTargetAs the movement travel distance of lower mold core, and perform step
S6；
Not there is actual final pressure P in this stepEndChange or previous pressure set points PSetThe feelings being modified
Condition, under touch core and carry out falling motion with the value of intermediate variable L for moving target.
S6: lower mold core is with HTargetFor aim parameter, perform falling motion；And by lower mold core displacement transducer pair
The distance of fall of lower mold core detects, if distance of fall accurately reaches HTargetDuring value, then perform step S7；
If distance of fall fails accurately to arrive HTargetDuring value, then send information to human-computer interaction interface, and jump out
This method.
S7: upper mold core declines and suppresses, and performs step S8.
S8: by modulus transition element to the base substrate thickness H after compactingActualMeasure, and by measurement result
Transmission is to memory cell；The data of the compacting of upper mold core recorded simultaneously and judge, and calculating lower mold
The whereabouts adjusted value Rectify of core, and it is deposited into memory cell, perform step S9 the most again.
This step is by the record of each data in upper mold core pressing process and judgement, thus draws lower mold
The adjusted value Rectify of type.
S9: to can determine whether that judgement symbol symbol JudgeEnable judges；If JudgeEnable is true,
Then perform step S10；If JudgeEnable is false, then terminate this method flow.
S10: to base substrate actual error △ HActtualWith production franchise △ HSetCompare；Wherein, reality is by mistake
Difference △ HActtual=HActtual-HSet, and HSetWith △ HSetIt is respectively the setting value of qualified products and produces franchise
Setting value；If | △ Hacttual|>|△HSet|, then perform step S11；If | △ Hacttual|≤|△HSet| time, do not perform
Any adjustment, terminates this method flow.
S11: pressure is changed identifier PEndChanged, setting value are modified identifier PSetChanged and
Velocity anomaly identifier Abnormal judges；If PEndChanged is judged as true or PSetChanged
It is judged as, when true or velocity anomaly identifier Abnormal is true, adjusting, and by parameter cyclic
Access times k is entered as 1, and terminates this method flow；If it is not, then perform step S12.
S12: then k is increased by 1, and filler degree of depth median is adjusted；I.e. k=k+1, L=L+Rectify,
Terminate this method flow afterwards.
Please refer to Fig. 4, it is data record and the analysis of causes flow chart of the present invention.At said method stream
Cheng Zhong, the concrete method flow of step S8 comprises the following steps:
S81: whether k is more than n to judge parameter cyclic access times；If k > n, then remove array EArrayIn
The row first stored, and according to the (n+1)th column data move to n-th row method move data row, perform afterwards
Step S82；If k≤n, the most directly perform step S82；Wherein EArrayIt is the two of 5 row n row one by one
Dimension group, in order to store parameter during upper mold core compacting.
S82: when calculating kth time cyclic pressing, begin setting up reference velocity v of the upper mold core of pressurek；
vk=△ s/ △ t；And calculating vkAfter, by vkLeave two-dimensional array E inArrayThe 5th row kth row position
Put, and by EArrayStep S83 is performed after being stored in memory；Wherein △ s is that main piston chamber begins setting up pressure
The displacement of upper mold core walking in front △ t, the span of △ t is 1～10ms.
S83: to real-time pressure P in main piston chamberRealWith fuel tank back-pressure PSwitchDetect and judge；
Work as PReal≥PSwitchTime, perform step S84；Work as PReal<PSwitchTime, the most directly perform step S814.
The purpose of this step is that single compacting collection and storage are started the moment main piston cavity pressure P that pressurizesStart.k
Upper mold core positional value Pos this momentStart.k, in order to subsequent calculations uses.
S84: pressurize the moment by main piston cavity pressure P startingRealAssignment is to the initial pressure ginseng of kth time compacting
Amount PStart.k, PStart.k=PReal；And by the positional value Pos of now upper mold coreRealIt is assigned at the beginning of kth time compacting
Beginning position parameter PosStart.k, PosStart.k=PosReal；The most respectively by the initial pressure parameter P of kth time compactingStart.k
With initial position parameter PosStartIt is placed into two-dimensional array EArrayIn the 1st row kth row and the 3rd row kth row
Position, EArray[1][k]=PStart.k, EArray[3][k]=PosStart.k；Simultaneously by two-dimensional array EArrayDeposit to memory
After in, perform step S85.
S85: when upper mold core continues compacting powder, continue the real-time pressure P in main piston chamberRealExamine
Survey, work as PRealValue is less than setup pressure value PSetTime, directly perform step S814；Work as PRealValue more than or etc.
In setup pressure value PSetTime, equipment stops compacting；And by main piston chamber between master cylinder and main piston this moment
Pressure PRealTermination pressure parameter P for assignment to kth timeEnd.k, PEnd.k=PReal；To upper mold core terminate this moment
Positional value PosEndIt is assigned to kth time final position parameter PosEnd.k, PosEnd.k=PosReal；The most respectively by PEnd.k
And PosEnd.kLeave two-dimensional array E inArrayThe 2nd row kth column position and the 4th row kth column position,
EArray[2][k]=PStart.k, EArray[4][k]=PosStart.k；And by two-dimensional array EArrayAfter being stored in memory, hold
Row step S86.
S86: parameter cyclic access times k is judged；When k value is more than 2, calculate two-dimensional array
EArrayIn k main piston chamber initial pressure parameter PStart, the water exit position parameter Pos of k upper mold coreStart、
The termination pressure parameter P of k plunger shaftEnd, the final position parameter Pos of upper mold core at the end of k compactingEnd
Arithmetic mean of instantaneous value；And these mean value definitions are respectively defined as starting to suppress the initial pressure reference in moment
Value PStart.RefWith start to suppress initial position reference value Pos in momentStart.Ref, terminate the termination pressure in compacting moment
Power reference value PEnd.RefWith final position reference value Pos terminating the compacting momentEnd.Ref；Two point form is utilized to calculate
Go out powder and be pressed period born pressure and the reference slope K of compression travelRef=(PosEnd.Ref-
PosStart.Ref)/(PStart.Ref-PEnd.Ref)；Calculate also with arithmetic mean of instantaneous value method and set up the upper of pressure moment
Core rod is with reference to average speed VelRef；Utilize two point form to calculate " pressure-displacement " slope K of kth time simultaneouslyReal,
KReal=(PosEnd.k-PosStart.k)/(PStart.k-PEnd.k), perform step S87 afterwards；When k value is less than or equal to
When 2, directly perform step S814.
This step is the calculating link generating reference model, and calculates real time data, in order to follow-up
Relatively.Definition is with reference to slope KRefFor " pressure-displacement " slope, this slope reflects k circulation and produces compacting
The deformation of middle powder and the repeated higher theory relation of holding capacity.
S87: judge parameter cycle criterion k, when k < during m, directly performs step S814；
As k >=m, perform step S88.
S88: kth time upper mold core is started speed v when suppressingkJudge, work as vk>a×VelRefTime,
Then judge that the downstream rate of upper mold core is abnormal, by upper mold core velocity anomaly identifier set, Abnormal=True；
Perform step S814 again；Work as vk≤a×VelRefTime, perform step S89；Wherein, a is the tune of reference velocity
Integral coefficient, and a > 1.
This step is the most abnormal in the decrease speed judging upper mold core.Such as, when actual speed vk>3×VelRef,
Illustrate that upper mold core 3 is faster 3 times than reference velocity close to speed when starting pressing position, excessive velocities upper
Core rod 3 impacts powder and causes framed interior powder to be pressed 7 to sputter framed, causes powder 7 to be pressed
Volume diminishes, then the adobe thickness suppressed is inevitable thinning, therefore judges without this method, directly jumps out.
S89: judge to terminate termination pressure P in the main piston chamber between compacting moment master cylinder and main pistonEndIt is
No overproof；When | PEnd-PSet| > △ P, then belong to overproof and pressure is changed identifier PEndChanged set,
PEndChanged=true；Wherein △ P is tolerance；When | PEnd-PSet| during≤△ P, PEndChanged=False,
Then perform step S810.
This step is that the termination pressure judging upper mold core is the most abnormal；Such as, PEnd=21MPa,
PSet=20MPa, △ P=0.5MPa, then | PEnd-PSet|=1MPa > △ P, belong to the end overproof situation of pressure.
If overproof, then the final molding pressure transient of powder is described, not in this method adjusts category.
S810: to upper mold core in initial position parameters Pos beginning setting up the pressure momentStartWith begin setting up pressure
Initial position reference value Pos during powerStart.RefCompare；If PosStart>PosStart.Ref, then show to wait to press
The volume of contracting powder is little, and to cause setting up pressure spot low higher than reference point, then by filler deficiency identifier set,
PodwerScarcity=True；If PosStart<PosStart.Ref, show that the volume of powder to be compressed causes greatly
Set up pressure spot lower than reference point, then by too much for filler identifier set, PodwerSurplus=Ture, if
It is PosStart=PosRef., show the volume of powder to be compressed just, filler be suitable for identifier set,
PodwerFitting=Ture；And perform step S811.
In the present embodiment, this method flow process when upper mold core is the closer to lower mold core, upper mold core sensor reading
The least.
S811: actual slope K to kth time " pressure-displacement "RealWith reference slope KRefCompare；As
Really KReal<KRef, then show that powder particles degree and water-cut variation cause powder resistance to compression shrinkage to uprise, by powder
Closely knit identifier set, CloseGrained=True；If KReal>KRef, show powder particles degree and moisture content
Change causes powder resistance to compression shrinkage step-down, by loose for powder identifier set, Runny=True；If
KReal=KRef, then show that powder particles degree and water-cut variation do not change, powder density be suitable for mark
Symbol set, Fitting=True；Continue executing with step S812 afterwards.
S812: the reason after changing base substrate thickness judges, and is adjusted according to reason；If
PodwerScarcity=True, by regulation coefficient Coef.=1；If PodwerSurplus=Ture, by adjustment it is
Number Coef.=-1；If CloseGrained=True, by regulation coefficient Coef.=-1, and at human-computer interaction interface
On provide information, prompting powder particles degree and moisture content change；If Runny=True, will adjust
Integral coefficient Coef.=1, and on human-computer interaction interface, provide information, prompting powder particles degree and moisture content
Change；If PodwerFitting=Ture, or Fitting=True, by regulation coefficient Coef.=0；It
After be further continued for perform step S813.
The reason that this step changes according to base substrate thickness, provides different regulation coefficient.
S813: set can determine whether identifier JudgeEnable=true, and calculates the thickness deviation values of reality | △ Hacttual|, | △ Hacttual| by actual base substrate thickness HActualWith setting value HSetBetween base, the absolute value of difference determines,
And by thickness deviation values | △ Hacttual| it is stored in memory；And utilize the initial bit beginning setting up pressure moment upper mold core
Put value PosStartWith upper mold core final position value Pos when stopping during blank forming pressingEndDifference, calculate
The stroke △ Depth that after blank forming, powder is compressedFLan, therefore compression ratio Comp.RateEqual to depth of packing
△DepthFillingThan the stroke △ Depth compressedFLan, i.e. Comp.Rate=△ DepthFilling/△DepthFLan；
And the thickness Rectify=of required adjustment | △ Hacttual|*Comp.Rate* Coef, will perform required adjustment afterwards
Thickness Rectify is stored in holder, then performs step S9.
S814: will can determine whether that identifier JudgeEnable is entered as false, i.e. JudgeEnable=false；It
Rear execution step S9.
The invention is not limited in above-mentioned embodiment, if to the various changes of the present invention or deformation without departing from
The spirit and scope of the present invention, if these are changed and deform claim and the equivalent technologies belonging to the present invention
Within the scope of, then the present invention is also intended to comprise these changes and deformation.
Claims (7)
1. a method for oil cylinder automatic stroke-regulating, comprises the following steps:
Step one, parameter cyclic access times k is judged, when k is more than or equal to when setting numerical value m,
Perform step 2；When k is less than when setting numerical value m, perform step 3；Wherein, numerical value m is for setting contrast
It is worth, and k and m is positive integer；
Step 2: pressure set points modified logo is accorded with PSetChanged judges；If PSetChanged
When being judged as true, perform step 4；If it is not, then perform step 5；
Step 3: by original filler depth HSetIt is assigned to intermediate variable L, and performs step 5；
Step 4: lower mold core is with initial fillers depth HSetAs moving target, by HSetIt is assigned to HTarget,
And perform step 6；
Step 5: intermediate variable L is assigned to HTargetAs the movement travel distance of lower mold core, and perform step
Rapid six；
Step 6: lower mold core is with HTargetFor aim parameter, perform falling motion；And by lower mold core displacement sensing
The distance of fall of lower mold core is detected by device, if distance of fall accurately reaches HTargetDuring value, then perform step
Seven；If distance of fall fails accurately to arrive HTargetDuring value, and jump out this method；
Step 7: upper mold core declines suppresses, and performs step 8；
Step 8: judge that whether parameter cyclic access times k is more than array EArrayColumns n；If k > n,
Then remove array EArrayIn the row that store at first, and the method moved to the n-th row according to the (n+1)th column data moves
Dynamic data row, perform step 9 afterwards；If k≤n, the most directly perform step 9；Wherein EArrayIt is an i
The two-dimensional array of row n row, in order to store parameter during upper mold core compacting, i or n is positive integer, and i is one
Positive integer more than or equal to 2；
Step 9: to real-time pressure P in main piston chamberRealWith fuel tank back-pressure PSwitchDetect and sentence
Disconnected；Work as PReal≥PSwitchTime, terminate this method flow；Work as PReal<PSwitchTime, the most directly perform step
Ten；
Step 10: at the positional value Pos of moment upper mold core that starts to pressurizeRealIt is assigned to the initial of kth time compacting
Position parameter PosStart.k, PosStart.k=PosReal；Initial position parameter PosStart.kIt is placed into two-dimensional array EArray
Arbitrarily kth column position in a line i1, EArray[i1][k]=PosStart.k；Simultaneously by two-dimensional array EArrayDeposit to depositing
After in reservoir, perform step 11；
Step 11: when upper mold core continues compacting powder, continue the real-time pressure P in main piston chamberReal
Detect, work as PRealValue is less than setup pressure value PSetTime, terminate this method flow；
Work as PRealValue is more than or equal to setup pressure value PSetTime, equipment stops compacting；And by upper mold core this moment
Final position value PosEndIt is assigned to kth time final position parameter PosEnd.k, PosEnd.k=PosReal；Pos againEnd.k
Leave two-dimensional array E inArrayKth column position, E in any a line i2 in addition to i1Array[i2][k]=PosEnd.k；And
By two-dimensional array EArrayAfter being stored in memory, perform step 12；
Step 12: parameter cyclic access times k is judged；When k value is more than 2, calculate two
Dimension group EArrayThe initial position parameter Pos of middle k upper mold coreStartArithmetic mean of instantaneous value, and by this mean value
It is defined as starting to suppress initial position reference value Pos in momentStart.Ref, PosStart.Ref=
(PosStart.1+PosStart.2+PosStart.3…PosStart.k)/k；Perform step 13 afterwards；When k value less than or etc.
In 2 time, terminate this method flow；
Step 13: judge parameter cyclic access times k, when k < during m, terminates this method stream
Journey；As k >=m, perform step 14；
Step 14: to upper mold core in initial position parameters Pos beginning setting up the pressure momentStartWith start to build
Initial position reference value Pos during vertical pressureStart.RefCompare；If PosStart>PosStart.Ref, then will fill out
Material deficiency identifier set, PodwerScarcity=True；If PosStart<PosStart.Ref, then by filler
Too much identifier set, PodwerSurplus=Ture, if PosStart=PosRef., filler is suitable for mark
Symbol set, PodwerFitting=Ture；And perform step 15；
Step 15: the reason changing base substrate thickness judges, and is adjusted according to reason；As
Really PodwerScarcity=True, by regulation coefficient Coef.=1；If PodwerSurplus=Ture, will adjust
Coefficient Coef.=-1；If PodwerFitting=Ture, by regulation coefficient Coef.=0；It is further continued for performing step
16；
Step 10 six: and calculate the thickness deviation values of reality | △ Hacttual|, | △ Hacttual| by actual base substrate thickness
HActualWith setting value HSetBetween base, the absolute value of difference determines, and by thickness deviation values | △ Hacttual| it is stored in
Reservoir；And utilize initial position value Pos beginning setting up pressure moment upper mold coreStartStop with during blank forming
Upper mold core final position value Pos during pressureEndDifference, the stroke that after calculating blank forming, powder is compressed
△DepthFLan, therefore compression ratio Comp.RateEqual to depth of packing △ DepthFillingThan the stroke compressed
△DepthFLan, i.e. Comp.Rate=△ DepthFilling/△DepthFLan；And the thickness Rectify=of required adjustment
|△Hacttual|×Comp.Rate× Coef, is stored into the thickness Rectify performing required adjustment afterwards in holder,
Perform step 10 seven again；
Step 10 seven: to base substrate actual error △ HActtualWith production franchise △ HSetCompare；Wherein, real
Border error delta HActtual=HActtual-HSet, and HSetWith △ HSetIt is respectively the setting value of qualified products and produces fair
The setting value of difference；If | △ Hacttual|>|△HSet|, then perform step 10 eight；If | △ Hacttual|≤|△HSet| time, then
Do not perform any adjustment, terminate this method flow；
Step 10 eight: setting value is modified identifier PSetChanged；If PSetWhen Changed is judged as true,
To not adjust, and parameter cyclic access times k will be entered as 1, and terminate this method flow；If it is not,
Then perform step 10 nine；
Step 10 nine: then k is increased by 1, and filler degree of depth median is adjusted；I.e. k=k+1,
L=L+Rectify, terminates this method flow afterwards.
The method of a kind of oil cylinder automatic stroke-regulating the most according to claim 1, it is characterised in that:
In step 10, will also start the main piston cavity pressure P in pressurization momentRealAssignment is to the initial pressure of kth time compacting
Power parameter PStart.k, i.e. PStart.k=PReal；Again by the initial pressure parameter P of kth time compactingStart.kIt is placed into two
Dimension group EArrayIn in addition to i1 and i2 kth column position, E in any a line i3Array[i3][k]=PStart.k；
In described step 11, work as PRealValue is more than or equal to setup pressure value PSetTime, also will lead this moment
Main piston cavity pressure P between oil cylinder and main pistonRealTermination pressure parameter P for assignment to kth timeEnd.k,
PEnd.k=PReal；The most respectively by PEnd.kLeave two-dimensional array E inArrayIn in addition to i1, i2, i3 any a line i4
Kth column position, EArray[4i][k]=PEnd.k；
In described step 12, when k value is more than 2, to two-dimensional array EArrayIn k compacting start
Moment main piston cavity pressure value PStart, k compacting finish time plunger shaft pressure value PEnd, k compacting terminate
Moment upper mold core 3 shift value PosEndArithmetic mean of instantaneous value, and by these mean value definitions for starting to suppress the moment
Press power reference value PStart.Ref, terminate compacting the moment press power reference value PEnd.RefWith the end compacting moment
Reference by location value PosEnd.Ref, PStart.Ref=(PStart.1+PStart.2+PStart.3+…PStart.k)/k,
PEnd.Ref=(PEnd.1+PEnd.2+PEnd.3+…PEnd.k)/k, PosEnd.Ref=(PosEnd.1+PosEnd.2+PosEnd.3+…
PosEnd.k)/k；Calculate powder and be pressed period born pressure and the reference slope of compression travel
KRef=(PosEnd.Ref-PosStart.Ref)/(PStart.Ref-PEnd.Ref)；Calculate " pressure-displacement " slope of kth time simultaneously
KReal, KReal=(PosEnd.k-PosStart.k)/(PStart.k-PEnd.k)；
After described step 14 completes, before performing step 15, also to kth time " pressure-displacement "
Actual slope KRealWith reference slope KRefCompare；If KReal<KRef, by closely knit for powder identifier
Set, CloseGrained=True；If KReal>KRef, by loose for powder identifier set, Runny=True；
If KReal=KRef, powder density is suitable for identifier set, Fitting=True；
In step 15, before performing step 10 six, also to CloseGrained, Runny, Fitting
Judge respectively；If CloseGrained=True, by regulation coefficient Coef.=-1, and in man-machine interaction
Providing information on interface, prompting powder particles degree and moisture content change；If Runny=True,
By regulation coefficient Coef.=1, prompting powder particles degree and moisture content change；If Fitting=True, will
Regulation coefficient Coef.=0.
The method of a kind of oil cylinder automatic stroke-regulating the most according to claim 1, it is characterised in that:
After institute's step 8 completes, before performing step 9, also need to perform following steps: to kth time circulation pressure
Reference velocity v of upper mold core when system begins setting up pressurekCalculate, vk=△ s/ △ t；And calculating
vkAfter, by vkLeave two-dimensional array E inArrayThe 5th row kth column position, and by EArrayIt is stored in memory；
Wherein △ t is the time value set, and △ s is the position that before main piston chamber begins setting up pressure, in △ t, upper mold core is walked
Move；
In described step 12, calculate the upper mold core setting up the pressure moment also by arithmetic mean of instantaneous value method
With reference to average speed VelRef, VelRef=(v1+v2+…+vk)/k；
In described step 13, as k >=m, further comprised the steps of: kth before performing step 14
Secondary upper mold core starts speed v when suppressingkJudge, work as vk>a×VelRefTime, then judge under lower mold core
Line speed is abnormal, and upper mold core velocity anomaly identifier set, Abnormal=True, and assignment can determine whether mark
Will symbol JudgeEnable=false, performs step 10 seven afterwards；Work as vk≤a×VelRefTime, continue executing with step
14；Wherein, a is with reference to average speed VelRefCoefficient and be any number more than 1；
In described step 2, also velocity anomaly identifier Abnormal is judged；If PSetChanged
It is judged as when true or velocity anomaly identifier Abnormal is true, performs step 4；If it is not, then perform
Step 5.
The method of a kind of oil cylinder automatic stroke-regulating the most according to claim 3, it is characterised in that:
In step 13, as k >=m, further comprised the steps of: before performing step 14
Judge to terminate termination pressure P in the main piston chamber between compacting moment master cylinder and main pistonEndWhether surpass
Difference；When | PEnd-PSet| > △ P, then belong to overproof and pressure is changed identifier PEndChanged set,
PEndChanged=true, and assignment can determine whether identifier JudgeEnable=false, performs step 10 afterwards
Seven；
When | PEnd-PSet| during≤△ P, then by PEndChanged is designated False, and continues executing with step 14；
Wherein △ P is the tolerance set；
In step 2, also pressure is changed identifier PEndChanged judges；If PEndChanged
It is judged as true or PSetChanged is judged as when true or velocity anomaly identifier Abnormal is true,
Perform step 4；If it is not, then perform step 5.
The method of a kind of oil cylinder automatic stroke-regulating the most according to claim 1, it is characterised in that:
In described step 9, work as PReal≥PSwitchTime, assignment can determine whether identifier JudgeEnable=false, and performs
Step 10 seven；
In described step 11, work as PRealValue is less than setup pressure value PSetTime, assignment can determine whether identifier
JudgeEnable=false, and perform step 10 seven；
In described step 12, when k value is less than or equal to 2, assignment can determine whether identifier
JudgeEnable=false, and perform step 10 seven；
In described step 13, when k < during m, assignment can determine whether identifier JudgeEnable=false, and
Perform step 10 seven；
In described step 10 six, also set can determine whether identifier JudgeEnable=true；
In step 10 seven, first to can determine whether that judgement symbol symbol JudgeEnable judges；If
JudgeEnable is true, then continue base substrate actual error △ HActtualWith production franchise △ HSetCompare；
If JudgeEnable is false, then terminate this method flow.
The method of a kind of oil cylinder automatic stroke-regulating the most according to claim 2, it is characterised in that:
In described step 6, if distance of fall fails accurately to arrive HTargetDuring value, then send to human-computer interaction interface and carry
Show information, and jump out this method；In step 15, if Runny=True, by regulation coefficient Coef.=1,
And on human-computer interaction interface, providing information, prompting powder particles degree and moisture content change.
The method of a kind of oil cylinder automatic stroke-regulating the most according to claim 1 and 2, it is characterised in that:
Described array EArrayIt it is the two-dimensional array of one 5 row n row.
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