CN1121637C - Feedback type processing condition corrector and method for feedback process - Google Patents

Feedback type processing condition corrector and method for feedback process Download PDF

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CN1121637C
CN1121637C CN 96109389 CN96109389A CN1121637C CN 1121637 C CN1121637 C CN 1121637C CN 96109389 CN96109389 CN 96109389 CN 96109389 A CN96109389 A CN 96109389A CN 1121637 C CN1121637 C CN 1121637C
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value
measured value
aforementioned
measured
corrected
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CN1172293A (en
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加藤千智
山川芳彦
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Feng Tong Equipment Engineering Ltd By Share Ltd
Toyota Motor Corp
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Fengtong Engineering And Manufacturing Corp
Toyota Motor Corp
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Abstract

The present invention relates to a processing system. A plurality of processed workpieces stand by between a processing machine 10 and a measuring instrument 16 for processed workpieces, and the measuring value X of the measuring instrument 16 can not be immediately reflected due to the influence of the correction value U of the processing condition of the processing machine. The feedback time of the correction value U for the measuring value X is corrected in a feedback type processing condition correction device determining the correction value U according to the measuring value X in order to improve the determining accuracy of the correction value U. The measuring value differences between the current values and the last values of the measuring values U are orderly calculated. When the differences between the front measuring values and the previous measuring values have an extreme value, and the current value exceeds a setting value, the purpose of the method for determining the correction value U is achieved.

Description

Apparatus for feedback-compensating working condition and reaction type job operation
The present invention relates to by the feedback apparatus for feedback-compensating working condition and the reaction type job operation of proofreading and correct next processing conditions with the related information of the scale error of workpiece to be machined.
Above-mentioned apparatus for feedback-compensating working condition (following will abbreviate means for correcting as) is generally used in and comprises: (a) order is processed the processing machine of a plurality of workpiece, (b) corrected value of supplying with by the outside, the system of processing of the measuring instrument of determining the processing conditions of processing machine and the Working control device of processing machine being controlled by this processing conditions and (c) successively the size of a plurality of workpiece of processing with processing machine being measured.Means for correcting comprises: (1) determine according to the measured value of measuring instrument the corrected value determination portion of processing conditions corrected value of next processing work and (2) to the processing machine control device provide the corrected value supply unit of definite corrected value.
System for the measured immediately instrument measurement of the workpiece that processes by processing machine, owing to directly measure by measuring instrument according to the workpiece that the processing conditions that is subjected to up-to-date corrected value influence processes, the influence of up-to-date corrected value directly shows in the measured value, so can judge rapidly whether up-to-date corrected value is suitable.Therefore, use the occasion of above-mentioned means for correcting in the system of processing of this form, the correction accuracy that improves processing conditions is fairly simple.But, in system of processing, exist and between processing machine and measuring instrument, exist at least one workpiece to wait for the mode (with reference to figure 2) that measuring instrument is measured, in this system of processing, the workpiece that influenced by up-to-date corrected value can not directly be measured by measuring instrument, and the response of up-to-date corrected value just begins to show on the measured value after through the time of one section time-delay.Therefore, have the occasion of using above-mentioned offset assembly in the system of processing of idle time at this, the skew ratio of precision that improves processing conditions is difficulty.
And, here " idle time " be originally concept of time, it is not a strict conformance with " standby workpiece number " by the standby workpiece that has a plurality of wait measuring instruments to measure after the processing machine processing, but the reference to definition control system characteristic is of equal value, and following " idle time " and " standby workpiece number " will use as the notion of mutual correspondence.
Relevant this class situation is a background, the inventor studying be fit to use in this system of processing that has formula idle time means for correcting, above-mentioned means for correcting has been proposed.Whenever measuring instrument measures, during first workpiece in a plurality of workpiece that process according to the processing conditions that influenced by up-to-date corrected value, aforesaid corrected value determination portion is just determined new corrected value according to the measured value of measuring instrument.
With the 1st offset assembly is example, and the off-set value determination portion is stored the measured value of measuring instrument successively, when the measured value of storage is counted to the number of the setting that reaches, determines corrected value together based on a plurality of measured values that storage is set.When measuring first calibration of workpieces with measuring instrument, just the mode of carrying out the measured value storage again from the state that does not have storage is carried out at every turn.
Tie up to based on the pass between measured value and the corrected value in the means for correcting of this embodiment shown in the figure of Figure 16.In this figure, transverse axis be with the workpiece that measuring instrument is measured count i, the longitudinal axis is measured value X.At phase data memory store measurement values successively, when reaching setting a plurality of, this number determines corrected value U.But this off-set value U directly is not reflected among the measured value X, is reflecting through just beginning after idle time.This result, measured value X alters a great deal in different phase.After this, the new phase data memory of beginning.
And the applicant has also proposed other means for correcting.The corrected value determination portion is stored the measured value from measuring instrument successively.And determine to answer the corrected value of processing work processing conditions successively according to a plurality of measured values of storage.Regularly the phase begins to according to during till workpiece period of measuring with measuring instrument that initial processing proofreaies and correct ahead really from each corrected value, a plurality of measured values that storage is measured with measuring instrument, be offset with corresponding correction value, so, this the 2nd means for correcting is measured in order to wait for the measured instrument of the workpiece of proofreading and correct ahead, just can determine new corrected value, suppose that preferably corrected value intactly reflects in measured value, in that regularly the phase begins to the calibration of workpieces ahead that depends on corrected value with during till measuring instrument mensuration period really from each corrected value, for a plurality of measured values and the correction and the equivalent displacement of storing a plurality of workpiece (to call " last time calibration of workpieces group " in the following text) of measuring with measuring instrument, belonging to last time, each workpiece basis of calibration of workpieces group is processed by the processing conditions of the influence of this corrected value mostly, and, effective measured value that the occasion prediction of directly measuring with measuring instrument in supposition obtains is determined new corrected value based on the measured value after this prediction.
In Figure 17, diagrammatically show example as the relation of corrected value in the 2nd means for correcting and measured value.As Figure 17, the figure of this figure and Figure 16 is same figure, also carries out data storage in the operation of idle time, and at this phase data memory, measured value X intactly stores, and has been shown in broken lines the storage of biasing back in the drawings.
Also have, this 2nd means for correcting might not wait for that this corrected value is reflected in measured value after determining certain corrected value, just determine other corrected value.Therefore, exist in certain corrected value and determine that time and corrected value are reflected in the occasion of determining other corrected values during the measured value.In this occasion, the corrected value of reflected measurement value is not up-to-date corrected value, and it still there is not the corrected value of reflected measurement value, is called the corrected value that does not have reflection the earliest.
Above, the applicant has illustrated the formation of preferred the 1st means for correcting and the 2nd means for correcting respectively.The correction accuracy of this class means for correcting is good, in order determining rapidly, to be necessary correctly to hold with measuring instrument and to measure the time of calibration of workpieces in advance.
Often to guaranteeing that standby workpiece number is certain occasion idle time, every above-mentioned idle time of the long actual value of obtaining in advance, fully can be at means for correcting by setting the idle time relevant (setting idle time) actual idle time to call in the following text with inner parameter.But, be the occasion of fixed value setting idle time like this, the occasion that changes in actual idle time just has problem.
At first the 1st means for correcting is specified the occurrence cause of this problem.
Especially, actual idle time than setting especially severe in longer occasion idle time.For example, shown in the figure among Figure 26, in this occasion, without actual idle time, when not reflecting corrected value U in measured value X, new memory phase begins.Store the measured value X that does not reflect corrected value at this phase data memory.
This problem can be resolved when actual idle time, maximal value was longer setting to be set at idle time.But, because in this occasion,, set and also to be less than idle time even after actual idle time, can not begin new phase data memory, producing picture can not be in case just determines the other problem of corrected value and so on when determining new corrected value rapidly.Be example as shown in figure 27, exist a measuring instrument to unite the occasion that becomes the Compound Machining line via a plurality of indivedual processing lines.In this occasion, the maximal value of actual idle time becomes quite big because of the influence of the standby workpiece number that is subjected to existing on certain processing line and other the indivedual processing lines.For this reason, particularly in this occasion, because from determining that certain corrected value takies considerable time to definite new corrected value, so can not react rapidly to the actual change of workpiece processing size.
Secondly, be that the reason that fixed value occasion problem produces is specifically described in the 2nd means for correcting, setting idle time.
For example, setting the occasion of growing than actual idle time idle time, also measured value is predicted after actual idle time that this result is as shown in the figure of Figure 28, to beginning after actual idle time to setting tailend idle time from this, for the measured value X that has reflected corrected value U, also carried out unnecessary displacement, to same measured value, correct influences and predicted impact can overlap, therefore, stored incorrect measured value, definite precision of corrected value reduces.And, on the contrary, setting the occasion shorter idle time than actual idle time, before finishing actual idle time, be that measured value has reflected before the corrected value, be through with, beginning to the time of setting before finishing idle time from actual end idle time to the prediction of measured value, should predict, but in fact not predict.Under this occasion, stored incorrect measured value, definite precision of corrected value reduces.
Setting idle time although specifically understand actual change idle time in the 1st means for correcting and the 2nd means for correcting above respectively is the occasion of fixed value, by using the actual measurement device of idle time, in processing machine, by being provided with after workpiece processing finishes, measuring the workpiece number that exists between processing machine and the measuring instrument is the workpiece counter of standby workpiece number, can eliminate this class problem to a certain extent.But, can not eliminate fully.Because in reality processing, finish certain workpiece of processing after, after recording standby workpiece number by the workpiece counter, the operator has and why plants reason and take out workpiece or why plant reason and insert the possibility that has processed workpiece.
Specifically understand respectively above and in the 1st means for correcting and the 2nd means for correcting, can not correctly hold the problem of determining corrected value actual idle time and reducing correction accuracy, in the 2nd means for correcting, also have following other problems.
As previously mentioned, in this 2nd means for correcting, the prediction of measured value is to reflect fully under the situation of corrected value at the supposition measured value, and each measured value has been carried out and the skew of corrected value with amount.But in practice, shown in the figure of Figure 29, exist measured value X can not reflect the occasion of corrected value U fully.In this occasion, shown in the figure of Figure 30, in the idle time operation, between later to the measured value X that has reflected corrected value U, there is very big difference in the value that the measured value X prediction (displacement) that does not reflect corrected value is asked and in idle time, the precision of prediction of measured value reduces, and definite precision of corrected value reduces.That is to say, in the 2nd means for correcting, do not detect corrected value actually the reflection amount in measured value but supposition be reflected in measured value fully and predict, therefore exist and improve precision of prediction a limit is arranged, can not improve very much the other problems of correction accuracy.
Above, several problems that the 1st means for correcting and the 2nd means for correcting are had have been described.This class problem all is because detect the reason that the requisite item of determining corrected value is determined corrected value with open loop approach under the situation of not considering actual value, and is in this, common mutually.
With these things is background, measures the apparatus for feedback-compensating working condition that also can determine the well-corrected value under the inconsistent situation although the object of the present invention is to provide in the correction reflection of actual change idle time, corrected value and reality.
With feeding back the technology of proofreading and correct processing conditions, such as the reaction type job operation, used successively with processing machine process a plurality of workpiece, next time measure be configured in and processing machine between have at least the locational measuring instrument of processing work to measure the workpiece size that processing machine processes, and, proofread and correct the method for the processing conditions of processing machine processing work next time according to the measured value of this measuring instrument.For this reason, identical with above-mentioned occasion in this reaction type job operation, if exist actual variation idle time and corrected value and actual correction reflection to measure inconsistent situation, with regard to the problem that has correction accuracy to reduce.
Therefore, although the object of the present invention is to provide actual idle time and actual correction reflection amount inconsistent and still can determine high-precision corrected value, improve the reaction type job operation of workpiece processing quality.
In addition, the object of the present invention is to provide in order to implement the computer implemented program of using of this class apparatus for feedback-compensating working condition and reaction type bearing calibration respectively.
The 1st invention, as having purchased the apparatus for feedback-compensating working condition that has the system of processing of 1 standby workpiece between above-mentioned processing machine, processing machine control device and measuring instrument and processing machine and measuring instrument at least, it is characterized in that, comprise: (a) according to the currency of measuring and measured value front and back poor of value difference last time, come to determine with processing machine want next time processing work processing conditions the corrected value determination portion and (b) the corrected value supply unit of determined corrected value supply processing machine control device.
So, in the apparatus for feedback-compensating working condition relevant with this 1st invention, shown in the figure of Figure 31, the corrected value determination portion alter a great deal when measuring ahead calibration of workpieces with measuring instrument with a plurality of measured values of measuring instrument proceeding measurement and this moment variable quantity and actual consistent these two facts of amount that are reflected in the measured value of corrected value, be according to the definite corrected value of difference before and after the measured value.
And in this 1st invention, for example the corrected value determination portion can be each when measuring the workpiece of proofreading and correct ahead, and the measured value number of storage becomes and set a plurality ofly when several, just determines new corrected value form; And, in the time of can being the workpiece of each measurement correction ahead, when storing singly, new measured value determines new corrected value form.
With the 1st embodiment according to the invention is example, above-mentioned corrected value determination portion can be the form that comprises above-mentioned corrected value determination portion, obtain measured value from above-mentioned measuring instrument at every turn, it is poor just to ask for above-mentioned measured value front and back one by one, when the upset condition of difference surpasses set condition before and after this measured value, just determine above-mentioned corrected value based on the measured value of measuring instrument.
In this 1st embodiment, the upset condition of difference surpasses and set condition period reflects that with the correction that up-to-date corrected value is reflected in the measured value period is consistent before and after the measured value, when the upset condition of difference surpasses set condition before and after measured value, just determine new corrected value.
So,, be with determining corrected value under the situation of closed-loop fashion assurance, so even change actual idle time, correction accuracy does not reduce yet by measured value because proofread and correct the reflection time according to the 1st embodiment.
For example at the 2nd embodiment that meets above-mentioned the 1st invention, above-mentioned corrected value determination portion is store measurement values successively, and according to the measured value of above-mentioned measuring instrument, when determining above-mentioned corrected value, whenever it is poor with regard to the front and back of asking for above-mentioned measured value successively to obtain from the measured value of above-mentioned measuring instrument, the value of difference is measured in fact together before and after measured value when a plurality of measured values of measuring with measuring instrument during till when determining to begin variable condition poor before and after the aforementioned measured value of asking above set condition period from corrected value make the poor upset condition in skew and measured value front and back surpass set condition, determines new corrected value based on the measured value after the skew.
In this 2nd example, the corrected value determination portion alters a great deal when measuring instrument is measured calibration of workpieces ahead according to measured value and the variable quantity and the consistent fact of corrected value that is reflected in truly in the measured value of this moment, thinks that moment that the upset condition of difference before and after the measured value surpasses set condition is with to proofread and correct the reflection moment consistent; And the value of difference is consistent with the correction reflection amount of corrected value in being reflected in measured value before and after this moment measured value.Thus, a plurality of measured values of measuring with measuring instrument during till regularly the phase, the upset condition of difference surpassed the time of set condition before and after the measured value really from corrected value, the value of difference substantially is the skew of amount together before and after the measured value when surpassing set condition with the upset condition with measured value front and back difference, determines new corrected value according to the measured value after this skew.
So,, determine corrected value by measured value period because hold actual correction reflection, so although change actual idle time, correction accuracy does not reduce yet with closed-loop fashion according to this 2nd embodiment.And, in this 2nd embodiment, hold actual correction reflection amount is determined measured value from measured value side-play amount with closed-loop fashion; Although so inconsistent with corrected value and actual correction reflection amount, suppose that also each measured value intactly is reflected in the measured value, and with compare during according to each corrected value with open loop approach prediction measured value, improved the measured value accuracy of predicting.
In above-mentioned the 2nd embodiment, because the difference upset condition surpasses before the set condition store measurement values and determines new corrected value before and after the measured value, thus exist from determine certain corrected value be reflected in to this corrected value measured value during determine the occasion of other corrected values.This occasion after other corrected values are supplied with above-mentioned processing machine control device by above-mentioned corrected value supply unit, can not be offset with closed-loop fashion based on the front and back difference of measured value, can only be offset with open loop approach based on corrected value.
Therefore, to meet the above-mentioned the 1st the 3rd embodiment that invents is example, during reflecting measured value to this corrected value from definite certain corrected value, no matter whether other corrected values are determined, from certain corrected value really regularly the phase before beginning measured value, to reflect to corrected value during, temporarily can determine other corrected values according to the skew that corrected value carries out open loop approach.After measured value has reflected this corrected value, the measured value that stored this moment is removed under the condition of tentative bias effect, can carry out carrying out the skew of open loop approach based on difference before and after the measured value.
And, as being example, comprise the back measurement value group of up-to-date measured value when being divided at least one the measured value composition of measuring in preceding measured value group that at least one the measured value measured earlier forms and back with a plurality of measured values of above-mentioned measuring instrument proceeding measurement with the 4th embodiment that meets above-mentioned the 1st invention.These each typical values of representing previous measurement value group and later stage to measure value group respectively are defined as the last sub-value and the currency of above-mentioned measured value respectively, and poor the difference of two typical values as the front and back of above-mentioned measured value.
The 2nd invention, process a plurality of workpiece successively with processing machine, with be configured in and processing machine between the locational measuring instrument that has at least processing work to exist measure size successively with the mach a plurality of workpiece of processing, and according to the measured value of this measuring instrument, proofread and correct reaction type job operation with the processing conditions of processing machine processing work next time, be poor before and after the measured value according to the difference of the currency of measuring instrument measured value and previous value, determine the processing machine corrected value of the processing conditions of processing work next time.It is characterized in that the corrected value that comprises above-mentioned definite corrected value is determined operation.
In the reaction type job operation that meets this 2nd invention, as previously mentioned, the consistent fact of amount when utilizing the fact that measured value alters a great deal when the measured instrument of calibration of workpieces is measured ahead and variable quantity at that time really to be reflected in measured value with corrected value is based on the definite corrected value of front and back difference of measured value.
For example in " corrected value is determined operation " in this 2nd invention, when measuring the workpiece of proofreading and correct ahead, and the measured value of storage counts to when reaching setting a plurality of, just can determine new corrected value; Whenever measuring the workpiece of proofreading and correct ahead, and when storing measured value new more than 1, determine new corrected value.
For example meet among the 1st embodiment of the 2nd invention at this, above-mentioned corrected value is determined operation, poor in the front and back of when obtaining measured value, just asking for above-mentioned measured value one by one with above-mentioned measuring instrument, when the front and back of this measured value difference upset condition surpasses set condition, according to determining above-mentioned corrected value with the measured value of measuring instrument.
According to this 1st embodiment, think that before and after the measured value upset condition of difference surpasses set condition period, the correction reflection that is reflected in measured value with up-to-date corrected value is consistent period, just determines new corrected value when therefore the upset condition of difference surpasses set condition before and after measured value.
Therefore,, determine corrected value by measured value period because in fact hold actual correction reflection with closed-loop fashion according to the 1st embodiment, so even actual idle time of change, correction accuracy does not reduce yet.
For example in the 2nd embodiment that meets above-mentioned the 2nd invention, above-mentioned corrected value is determined operation, can comprise: store the measured value from above-mentioned measuring instrument one by one, and determine above-mentioned corrected value according to a plurality of measured values of storage; While is asked for the front and back of measured value one by one when whenever obtaining from the measured value of above-mentioned measuring instrument poor, determine from corrected value to begin period to above-mentioned ask upset condition before and after the measured value surpass till the time of set condition during use measuring instrument to measure a plurality of measured values, the practically identical amount of value of difference before and after the measured value when upset condition of difference surpasses set condition before and after the offset measurement value, and determine new corrected value according to the measured value after this skew.
In described the 2nd embodiment, utilize measured value to measure the true and variable quantity and the consistent fact of corrected value that is reflected in truly in the measured value at this moment that calibration of workpieces duration ahead alters a great deal at measuring instrument, think that the upset condition of measured value front and back difference is consistent period with the correction reflection above the period of set condition, and the value of the measured value of this moment front and back difference is consistent with the correction reflection amount that corrected value is reflected on the measured value.Therefore, from corrected value really regularly phase upset condition of difference before and after the measured value surpass set condition during use measuring instrument to measure a plurality of measured values, the identical in fact amount of value of difference before and after the measured value when upset condition of difference surpasses set condition before and after skew and the measured value, the measured value after being offset according to this is determined new corrected value.
So,, determine corrected value by measured value period because will hold actual correction reflection, so although change actual idle time, correction accuracy does not reduce yet with closed-loop fashion according to this 2nd embodiment.And, in this 2nd embodiment, hold actual correction reflection amount with closed-loop fashion and determine the measured value side-play amount by measured value.Corrected value and actual correction reflection are measured under the inconsistent situation, suppose that also each measured value intactly is reflected in the measured value, and with compare with open loop approach prediction measured value according to each corrected value, improved the measured value accuracy of predicting.
In above-mentioned the 2nd embodiment, because the difference upset condition also can be determined new corrected value according to the measured value of storage before surpassing set condition before and after the measured value, thus exist from determine certain corrected value be reflected in to this corrected value measured value during determine the occasion of other corrected values.This occasion if after other corrected values are supplied with above-mentioned processing machine control device, just can not be carried out closed-loop fashion based on difference before and after the measured value, can only be offset based on the open loop approach of corrected value.
Therefore, to meet the above-mentioned the 2nd the 3rd embodiment that invents is example, the aforementioned corrected value determine operation from determine above-mentioned each corrected value to above-mentioned measuring instrument to the workpiece ahead a plurality of said workpiece of conduct of processing by the above-mentioned processing conditions that influenced by each corrected value till calibration of workpieces is measured ahead during, when obtaining measured value with above-mentioned measuring instrument, by making each measured value skew and temporarily carrying out above-mentioned measured value prediction as each corrected value same amount of fixing tentatively side-play amount, when the variable condition of value difference surpasses set condition before and after judging above-mentioned measurement, after from each measured value after the prediction, removing the influence of above-mentioned tentative side-play amount, the final side-play amount of this measured value after removing.Be the value of measured value front and back difference when the upset condition of difference surpasses set condition before and after the above-mentioned measured value, carry out the skew of in fact same value, proofread and correct above-mentioned tentative measured value prediction thus.
And, such as the 4th embodiment that meets above-mentioned the 2nd invention, the a plurality of measured values of above-mentioned measuring instrument proceeding measurement can be divided into, by at least one measured value of previous measurement form that at least one the measured value measuring value group in advance and measured by the back is formed, comprise the later stage measurement value group of up-to-date measured value simultaneously.The previous typical value of measuring value group and later stage measurement value group of representative is defined as the last sub-value and the currency of above-mentioned measured value respectively respectively, and can represent 2 value difference as poor before and after the aforementioned measurements.
The 3rd invention relates to reaction type processing conditions correction program recording medium.It is characterized in that: as having disposed above-mentioned processing machine, processing machine control device and measuring instrument, and between processing machine and measuring instrument, has the computer implemented program in the system of processing that 1 standby workpiece exists at least, be according to as the currency of above-mentioned measuring instrument measured value and last time poor before and after the measured value of value difference, determine the corrected value of the above-mentioned processing conditions of the next processing work of above-mentioned processing machine.This program is stored in advance.
Also have, recording medium herein for example has flexible plastic disc, tape, disk, magnetic drum, magnetic card, CD, photomagneto disk, ROM, CD-ROM, IC-card, perforated tape etc.
From above explanation as can be known, according to the present invention, because correction reflection time and actual measured value front and back difference of proofreading and correct the reflection amount according to reflection reality are determined corrected value, even so measure under the inconsistent situation in actual variation idle time, corrected value and actual correction reflection, also can improve correction accuracy, and reach the effect that improves the workpiece processing quality.
Especially, when whenever surpassing set condition, the upset condition of the present invention's difference before and after measured value determines in the enforcement occasion of corrected value, because grasp definite corrected value under actual idle time correctly, so even actual idle time of change, correction accuracy does not reduce yet.And, be fixed as actual idle time peaked occasion idle time and compare with setting, can shorten the time of determining 1 corrected value, can the rapid answer corrected value to the variation of the actual processing dimension of workpiece, reached the effect of raising processing quality.In addition, because hold the actual definite corrected value of reflection time of proofreading and correct, be not obligato effect so reached for measuring the production counter that is provided with actual idle time with the measured value closed-loop fashion.
In addition, especially, when the present invention surpasses set condition in the value of difference before and after measured value, in the enforcement occasion that the value of difference carries out proofreading and correct after the same amount skew in fact before and after measured value when a plurality of measured values are surpassed set condition with upset condition poor before and after the measured value, determine corrected value because correctly held the actual correction reflection time, even so change actual idle time, correction accuracy does not reduce yet.And,,, reached the effect that improves correction accuracy thus so, also can improve the measured value accuracy of predicting even the correction reflection amount of corrected value and reality is inconsistent because correctly held the skew that actual correction reflection measures to determine measured value.
Description of drawings
Fig. 1 is the system of processing that certain the reaction type size Control means for correcting of an embodiment as the 1st invention is used, when implementing embodiment reaction type job operation as the 2nd invention, with the view that inclines of wheel grinding bent axle state.
Fig. 2 is the system diagram of the above-mentioned system of processing integral body of expression.
Fig. 3 is illustrated in the figure that the processing machine in the said system constitutes.
Fig. 4 is the function piece figure that represents above-mentioned size Control point calibration device conceptually.
Fig. 5 is the process flow diagram of the part of size Control correction program the 3rd inventive embodiments of carrying out with computing machine of control device 20 in the presentation graphs 2.
Fig. 6 is the process flow diagram of expression size Control point calibration program another part.
Fig. 7 is the process flow diagram that this size Control point calibration program of expression is more advanced a part.
Fig. 8 represented this size Control point calibration program also more advance a part process flow diagram.
Fig. 9 shows other parts further of this size Control point calibration program.
Figure 10 conceptually shows above-mentioned size Control point calibration program entire process flow process.
Figure 11 conceptually shows the two ends diameter correction principle in Figure 10.
Be illustrated among Figure 10 to Figure 12 property summarized, calculate the process of error amount R and differential value T by obtaining dimension information.
Figure 13 shows and is used for the meta-function of arithmetic eror value R in the fuzzy operation in Figure 10.
Figure 14 shows and be used for the meta-function of computing differential value T in described fuzzy operation.
Figure 15 shows and be used for the meta-function of computing corrected value U in described fuzzy operation.
Figure 16 is in order to illustrate in the above-described embodiments conceptually, just determine new corrected value figure when measured value reflection corrected value.
Figure 17 is in order to illustrate in the above-described embodiments conceptually, the measured value that exists before the measured value reflection corrected value to be carried out the data-bias contents processing with its corrected value same amount.
Figure 18 shows the content that continuity is considered in Figure 10 conceptually.
Figure 19 is the figure that derives the operation of last corrected value U by measured value X for explanation in the size Control point calibration program of Fig. 5-9.
Figure 20 is the process flow diagram of S70 details among Fig. 6.
Figure 21 be for explanation conceptually in the above-described embodiments certain corrected value U1 be reflected in the occasion of determining next corrected value U2 behind the measured value X, handle the figure that the measured value of prediction is revised by data-bias.
Figure 22 is in order to illustrate that conceptually occurring certain corrected value U3 in the above-described embodiments before measured value X determines other corrected values and can not assist the occasion of proofreading and correct to proofread and correct, and handles the figure of the measured value X of prediction by data-bias.
Figure 23 determines other corrected values in the above-described embodiments and can assist the occasion of proofreading and correct before certain corrected value appears in measured value, proofread and correct the figure that handles the measured value X of prediction by data-bias.
Figure 24 is used for explanation in the above-described embodiments, and during the difference upset condition was judged before and after measured value, the standby workpiece was counted the figure of minimum value and maximal value relation.
Figure 25 is used for illustrating conceptually in the above-described embodiments, the figure of the relation of the sampled value number that measuring workpieces number, measured value front and back difference and the measured value front and back of obtaining are poor.
Figure 26 be used for illustrating conceptually the applicant in advance means for correcting actual idle time of exploitation than the figure that sets correction error reduction reason in long occasion idle time.
Figure 27 is illustrated in the figure that processing machine and measuring instrument in the system of processing concern example.
Figure 28 is used for the means for correcting that conceptual illustration is developed the applicant in advance, and in the occasion of actual ratio setting idle time weak point idle time, correction error reduces the figure of reason.
Figure 29 is used for the means for correcting of in advance developing the applicant is described that corrected value U can not be reflected in the figure of the example in the measured value fully.
Figure 30 is used for the means for correcting that conceptual illustration is developed the applicant in advance, and when corrected value U can not be reflected in the measured value fully, correction accuracy reduced the figure of reason.
Figure 31 be with conceptual illustration in having the system of processing of idle time, measured value X value is counted I with measured value increases the figure change.
Figure 32 is used for the figure that conceptual illustration is judged an embodiment of measured value front and back difference upset condition in the present invention.
Figure 33 is that the embodiment measuring workpieces that is used for illustrating at Figure 32 is counted the figure of i and measured value front and back difference Δ H relation.
Figure 34 is used for the figure that conceptual illustration is judged other embodiment of measured value front and back difference upset condition in the present invention.
Figure 35 is that the embodiment measuring workpieces that is used for illustrating at Figure 34 is counted the figure of i and measured value front and back difference Δ H relation.
Figure 36 is used for the figure of conceptual illustration at an embodiment measured value migration processing embodiment according to the invention.
Figure 37 is the illustration that is used to illustrate the beginning condition of judging measured value front and back difference upset condition in the present invention.
Figure 38 is the illustration that is used to illustrate the termination condition of judging measured value front and back difference upset condition in the present invention.
A plurality of embodiment according to the invention had been described already, below, except this class embodiment is remarked additionally, also enumerate the specific embodiment mode.
(1) apparatus for feedback-compensating working condition in being documented in above-mentioned technological means and reaction type job operation (hereinafter to be referred as apparatus of the present invention and method) are apparatus for feedback-compensating working condition pattern job operation (hereinafter to be referred as " device and modes ").Above-mentioned corrected value determination portion becomes corrected value to determine operation, whenever record new measured value from measuring instrument, just carries out the judgement of the upset condition of measured value front and back difference.And, in the judgement of the front and back of each time measured value difference upset condition, a plurality of measured values of proceeding measurement before this are divided into by the back measurement value group that contain up-to-date measured value formed of the measurement value group of being made up of at least 1 measured value of measurement earlier with at least 1 measured value of back measurement, have determined the typical value of representative measurement value group respectively; And represent two value difference as poor before and after the measured value.Difference is less than poor before and after the last time measured value before and after current measured value, and before and after the described last time measured value difference greater than the occasion of difference before and after the measured value more last time, when promptly extreme value appears in difference expression increases measured value with the measuring workpieces number before and after, judge that the upset condition of current measured value front and back difference surpasses set condition.
Shown in figure 32, in this embodiment, measured value group and later stage are measured the occasion of value group before being made up of 1 measured value (representing with circle in the drawings), difference Δ H before and after the measured value when these two are measured value groups and do not comprise calibration of workpieces ahead I-2, difference Δ H before and after the measured value the when back is measured value group and comprised calibration of workpieces measured value ahead I-1, and supposition before measure the measured value that comprises calibration of workpieces ahead among the group and, difference Δ H before and after the measured value when the back is measured value group and comprised the workpiece measurement of follow-up calibration of workpieces ahead iExpression.In the figure of Figure 33, represented like this to differ from the situation of change of Δ H before and after 3 measured values along with the increase of measuring number Δ H.Promptly just before and after the measured value when the back is measured value group and comprised calibration of workpieces ahead the upset condition of difference Δ H surpass set condition and change.At this moment, can judge to be exactly that measuring instrument has just measured the moment of calibration of workpieces ahead this moment.
In addition, as shown in figure 34, the occasion of value group is measured in measured value group and back before being made up of 2 measured values (representing with circle in the drawings), and difference is Δ H before and after the measured value when these two are measured value groups and do not comprise the follow-up calibration of workpieces measured value of the measured value of calibration of workpieces ahead and above-mentioned calibration of workpieces ahead I-4,, the back is measured value group and is included the measured value Δ H of the measured value of calibration of workpieces in advance I-3, only difference is Δ H before and after the measured value when the back is measured value group and contained the measured value of calibration of workpieces ahead and follow-up calibration of workpieces measured value I-2, only comprise the measured value of calibration of workpieces ahead among the preceding measured value group.And difference is Δ H before and after the measured value the when later stage measures value group and contains 2 follow-up calibration of workpieces measured values I-1, contain the measured value of calibration of workpieces and the measured value of follow-up calibration of workpieces ahead among the preceding measured value group, and, difference Δ H before and after the measured value the when back is measured value group and contained 2 follow-up calibration of workpieces measured values iExpression.As shown in the figure of Figure 35, these 5 measured values front and back difference Δ H change in time and change like this.That is to say, when having only the back to measure value group to contain the measured value of calibration of workpieces and follow-up calibration of workpieces ahead, difference Δ H upset condition surpasses set condition before and after the measured value, can judge this moment, is exactly the moment that the just measured instrument of workpiece proofreaied and correct ahead measures this moment.
(2) at the device and method described in (1), above-mentioned corrected value determination portion or corrected value are determined operation, when extreme value appears in difference before and after above-mentioned measured value, judge that immediately the upset condition of measured value front and back difference surpasses set condition.
(3) at the device and method described in (1), above-mentioned corrected value determining section or corrected value are determined engineering poor extreme value of getting before and after above-mentioned measured value, and, before and after the measured value of this moment difference surpass the value of setting the time judge that the upset condition of difference before and after the measured value surpasses the apparatus and method of set condition.
By this embodiment, also can suppress because of the reason outside the reflection of measured value reflection corrected value, because of this former thereby definite incorrect calibration problem, and the occasion that measured value is changed has reached and has improved the effect that corrected value is determined precision.
(4) apparatus and method of the present invention, corrected value determination portion or corrected value are determined operation, when difference surpasses setting value before and after above-mentioned measured value, judge that the upset condition of measured value front and back difference surpasses the apparatus and method of set condition.
Difference difference before and after measured value had surpassed under the situation of set condition at its upset condition before and after described embodiment utilized measured value, big this fact when surpassing set condition judges that indirectly the upset condition of difference before and after the measured value surpasses the period of set condition.
(5) apparatus and method of the present invention, aforementioned corrected value determination portion or corrected value are determined operation, when the measured value that at every turn makes new advances by measuring instrument measurements, the upset condition that differs from before and after the measured value are differentiated.And, in the upset condition of judging difference before and after the measured value each time, a plurality of measured values of measuring in order before this are divided into the back measurement value group of the up-to-date measured value that comprises that a plurality of measured values that preceding measured value group that a plurality of measured values of measuring in advance form and later stage measure form.Determine to belong to the variation amplitude of a plurality of measured value integral body of respectively measuring value group then respectively about conduct.Poor these 2 differences that change amplitude as aforesaid measured value front and back.Measure more than the setting multiple of group's amplitude of variation before difference satisfies before and after this measured value and the back measure more than the setting multiple of amplitude of variation of value group at least one the time, judge that poor upset condition before and after the measured value has surpassed the apparatus and method of set condition.
(6) apparatus and method of the present invention, aforementioned corrected value determination portion or corrected value are determined operation, during regularly playing aforementioned calibration of workpieces ahead from each corrected value really and measuring by measuring instrument, whenever obtain a measured value, just the temporary transient off-set value of each measured value with each corrected value same amount, be offset, carry out the prediction of aforementioned measurements with this; Judge when the poor upset condition in aforementioned measurements front and back surpasses set condition, after predicting the back measured value deducts the influence of each aforementioned tentative shift amount, the value of difference is carried out practically identical amount skew as final side-play amount before and after the measured value the when upset condition of difference surpasses set condition before and after the measured value aforementioned measurements after this is removed.Carry out apparatus and method thus to the correction of aforementioned tentative measured value prediction.
In this embodiment, example when measured value X is 90 (unit is any), because the supposition expectation value is 100, so the value of corrected value U is+10, determines that so tentative side-play amount is+10 as shown in figure 36.Therefore, store as the measured value after predicting this moment 100.But, since the variation that reflects among the measured value X after this have only+4, so at first from measured value X, deduct positive correction+10 temporarily, in this value, add last side-play amount+4 again, just can carry out correction that measured value is predicted.
(7) apparatus and method of the present invention, the aforementioned corrected value is determined operation, do not carry out aforementioned tentative measured value prediction during till when the workpiece of measuring aforementioned correction ahead with measuring instrument is played in timing really from each correction body, when the difference upset condition surpasses set condition before and after judging aforementioned measurements, value when each measured value of having stored is till that time surpassed set condition with upset condition poor before and after the measured value is carried out the skew of same amount in fact as side-play amount, thus the apparatus and method that aforementioned tentative measured value prediction is proofreaied and correct.
(8) apparatus and method in (1)~(7), aforementioned corrected value determination portion and corrected value determine that operation measures value group and comprise with the supposition measured value that to set in advance the minimum value of above-mentioned standby workpiece number, actual standby workpiece number be the corresponding above-mentioned calibration of workpieces ahead of minimum value measures with above-mentioned measuring instrument itself at first and during only prior to once measured value of this measured value, begin to judge the apparatus and method of the poor upset condition in a series of above-mentioned measured value front and back in aforementioned back.
And, showing conceptually in Figure 37 and being subordinated to measured value (representing with the circle in the drawings) number of respectively measuring value group is 2 and standby workpiece number when being minimum value, and the back is measured value group and comprised a example when measuring the measured value of calibration of workpieces (representing with black circles in the drawings) ahead itself with measuring instrument at first.
(9) apparatus and method in (1)~(8), above-mentioned corrected value determination portion and corrected value determine that operation when measuring value group in advance and comprising at last with the supposition measured value that to set in advance the maximal value of above-mentioned standby workpiece, actual standby workpiece number be the corresponding above-mentioned calibration of workpieces ahead of maximal value measures with above-mentioned measuring instrument itself and its that only the back is in once measured value of this measured value, begins to judge the device and the mode of the poor upset condition in a series of above-mentioned measured value front and back above-mentioned.
And, showing supposition in Figure 38 conceptually, to belong to measured value (representing with the circle in the drawings) number of respectively measuring value group be 2 and standby workpiece number when being maximal value, and the measurement value group comprises an example when measuring the measured value of calibration of workpieces when (representing with black circles in the drawings) itself ahead with measuring instrument at last earlier.
(10) apparatus and method in (1)~(9), above-mentioned corrected value determination portion and corrected value determine that operation comprises with the supposition measured value that to set in advance the maximal value of above-mentioned standby workpiece and minimum value, actual standby workpiece number be the corresponding above-mentioned calibration of workpieces ahead of minimum value measures with measuring instrument itself and during only prior to once measured value of this measured value at the aforementioned value group of measuring earlier, begin to judge poor upset condition before and after a series of above-mentioned measured value; Comprise with the supposition measured value that to set in advance the value of above-mentioned standby workpiece and minimum value, actual standby workpiece be the corresponding above-mentioned calibration of workpieces ahead of maximal value measures with measuring instrument itself and when only the back is in once measured value of this measured value, begin to judge the apparatus and method of a series of above-mentioned measured value front and back upset condition at the aforementioned value group of measuring in advance.
(11) apparatus and method in (10), above-mentioned corrected value determination portion and corrected value are determined in the judgement of operation upset condition before and after a series of measured value, when the upset condition of difference was no more than set condition before and after judging measured value, the actual above-mentioned standby workpiece number of judgement and supposition was that period and the actual calibration of workpieces that the corresponding calibration of workpieces ahead of minimum value or maximal value is measured with measuring instrument measured the apparatus and method in period with measuring instrument.
And, especially in this embodiment, corrected value is determined in the judgement of engineering difference upset condition before and after a series of measured value, when the upset condition of difference is no more than set condition before and after judging measured value, among the embodiment in the period that period that the calibration of workpieces ahead when the actual standby workpiece number of judgement supposition is maximal value is measured with measuring instrument and actual calibration of workpieces are ahead measured with measuring instrument, exist problem as the idle time of determining new corrected value, avoided the situation of determining new corrected value based on the measured value that does not reflect corrected value as yet, the benefit that improves the corrected value confidence level has been arranged.
(12) as the device and method in (1)-(11), directly measure the workpiece counter of workpiece for measurement number noted earlier, make production counter of above-mentioned processing machine output add 1, production counter of every input subtracts 1.Above-mentioned corrected value is determined and the corrected value deterministic process is according to the result of determination of difference upset condition before and after the above-mentioned measured value, and the count value of being counted by production counter is proofreaied and correct.
(13) apparatus and method of (12), above-mentioned corrected value determination portion or corrected value deterministic process are judged the period that above-mentioned calibration of workpieces is ahead measured by above-mentioned measuring instrument according to the count value of above-mentioned workpiece counter.
In such an embodiment, because corrected value determination portion or corrected value deterministic process utilize the workpiece counter to formulate the period that calibration of workpieces is ahead measured by measuring instrument with open-circuit condition, in the present invention, can not only enjoy as the benefit that improves the closed circuit state that changes accuracy idle time, and can enjoy benefit as the open circuit mode in measurement period of definite calibration of workpieces ahead in early days.
(14) apparatus and method of the present invention, above-mentioned corrected value determination portion or corrected value deterministic process are stored the measured value by the measuring instrument gained one by one, when the numerical value of stored measured value reaches setting a plurality of, a plurality of measured values according to this setting that is stored as, when determining to process the corrected value of gained workpiece processing condition successively one by one with processing machine, make the storage of the measured value that above-mentioned calibration of workpieces ahead measures by measuring instrument, from the no store status apparatus and method of repetitive operation once more.
8.2 example
Below, describe the one reaction type size Control point calibration device of example more specifically of the present invention in detail with figure.
This size Control point calibration device be processing work with the bent axle of motor car engine, be existing a plurality of diameters of axle surface on the bent axle working position, carry out the supporting use of adding system of cylinder grinding.
As shown in Figure 1, here the diameter of axle surface of bent axle is to be made of 7 mutual coaxial periphery faces of cylinder side by side.
As shown in Figure 2, system of processing is made up of processing line, 10,2 process detectors of processing machine (only having represented among the figure), size Control device 14, electric machine controller 15, postorder in-process measurement instrument 16, control device 20, assisted memory device 22.That is to say that processing machine 10 is the examples of " processing machine " in the invention of each application; Size Control device 14 and motor control assembly 15 are examples of " processing machine control device "; Process measuring instrument 16 is examples of " measuring instrument "; Control device 20 is examples of " apparatus for feedback-compensating working condition ".Specify these each key elements below.Processing line represents that it is to be used for a plurality of workpieces to be arranged in a row, the conveyance of (being from left to right in the drawings) from the upstream side to the downstream side with the heavy line that has arrow in the drawings.
Processing machine 10 is 7 diameter of axle surfaces that are used for bent axle, is machining tool to justify shape shape grinding stone, carries out cylinder and grinds.Concretely, as shown in Figure 3, to be that a plurality of grinding stones are coaxial line up grinding stone group 30 to processing machine 10, by coming the multilayer abrasive disk that cylinder grinds is carried out on all diameter of axle surfaces simultaneously with the revolution that contacts of bent axle.
Processing machine 10 has the work piece platform 32 that is used for workpiece.This work piece platform is installed on the main frame (not expressing among the figure) of processing machine 10.Be provided with fixation workpiece on the work piece platform can rotating stationary installation (not illustrating among the figure) and allow the rotating workpiece motor 34 of workpiece that is fixed around axis.
Processing machine 10 also has platform 36 and the oscillating platform that is used for grinding stone group forward-reverse.The forward-reverse platform is installed on the aforementioned main frame, and make it be fixed on the perpendicular direction of work piece platform and move reciprocatingly.On the one hand, oscillating platform is positioned on the forward-reverse platform, and it can be at grinding stone axis (representing with a dot-and-dash line among the figure) upside and vertical with it axis of oscillation to be the center swing.
The forward-reverse of forward-reverse platform 36 is to realize by the forward-reverse motor 40 that is fixed on main pivot frame, and the swing of oscillating platform 38 is to realize by the motor 42 that is fixed on the forward-reverse platform 36.That is to say, in processing machine 10, can adjust the angle that grinding stone axis workpiece axis of rotation coordinates by wobbling motor 42.
Aforementioned 2 process measuring instruments 12 are installed on the processing machine 10.As shown in Figure 1, these process measuring instruments have a pair of measurement that can hold a face of cylinder under the arm from outer both sides, and it measures cylinder diameter by electrical means.Be not that 7 diameter of axle surfaces all are furnished with these process measuring instruments 12, the same as shown in the figure, only to the diameter of axle surface at two ends, promptly the 1st diameter of axle surface and the 7th diameter of axle surface just are furnished with.
As shown in Figure 3, aforementioned dimensions control device 14 links to each other separately with the process measuring instrument.Size Control device 14 is to be that main body constitutes by the computing machine that contains CPU, ROM, RAM and bus.As representing with constituting piece formal notion ground among Fig. 4, in processing machine 10 process of lapping, monitor 2 end face of cylinder diameters separately by process measuring instrument 12, and when the residue approach on each end face of cylinder (arriving the approach of final size necessity) signal of (title " set amount arriving signal " later on) when reaching each setting value, and, distinguish the different ends face of cylinder and export to control device of electric motor 15 when reaching the signal of final size when (be present in and respectively hold the face of cylinder).
Size Control device 14 can be proofreaied and correct each size Control point.Specifically, if obtain corrected value U (being present in each face of cylinder), just each corrected value U is added till now size Control point from aforementioned control device 20.Change present size Control point thus.Just do not keep each present size Control point if obtain corrected value.Be that the size Control device is from normal moveout correction size Control point by control device 20.As shown in Figure 3, aforementioned electric motor control apparatus 15 and those size Control devices 14, forward-reverse motor 40 grades connect together.Control device of electric motor 15 is to control forward-reverse motor 40 according to operator's instruction and from the signal that size Control point comes.
Processing machine 10 be by corase grind, correct grinding, and spark several stages such as emit and finish the cylinder process of lapping one time.Rugosity is used to remain approach and reaches before the setting value, and correct grinding is used for diameter and reaches before the aforementioned dimensions reference mark.In general, supply with from size Control device 14, respectively to hold the service time of 2 set amount arriving signals on the face of cylinder be inconsistent.In the corase grind stage, respective signal service time inconsistent, control forward-reverse motor 40 and wobbling motor 42 are controlled suitable digging angle thus.In the correct grinding stage because before in the corase grind that carries out digging angle reached appropriate value, so motor controller 15 only carries out the incision of 30 pairs of workpiece of grinding stone group to the control of forward-reverse motor 40.As long as any one size Control point arriving signal on two faces of cylinder is arranged, just halt earlier and retreat motor 40, carry out then spark emit after again the forward-reverse motor by counter-rotation, finish grinding stone group 30 retreatment thus.
As shown in Figure 2, the back measuring instrument 16 of aforementioned processing is configured in the downstream side of processing line and processing machine.The number of processing back measuring instrument 16 is identical with the number on the face of cylinder of 1 processing work.It is to use the method identical with process measuring instrument 12, to all workpiece that come out from processing machine, in order one by one diameter measurement is carried out on all faces of cylinder.This processes back measuring instrument 16, is connected the input side of aforementioned control device 20.
Aforementioned control device 20 is to be that main body constitutes by the computing machine that contains CPU, ROM, RAM and bus.In ROM, storing size Control point calibration program in advance.And this control device 20 is connected together with aforementioned assisted memory device 22.The measured value X that can storage obtains from postorder in-process measurement instrument 16, and whole values of the corrected value U that determines according to it.Be because after finishing a succession of processing, the needs the when operator diagnoses machining status.Have among the RAM corrected value computing described later with storage area, proofread and correct the reaction information computing various signs such as sign that grade before various storage areas and the correction described later reaction with storage part.
Fig. 5~9 usefulness flowchartings above-mentioned size determine the major part of correction program.According to these figure, at first to the formation of control device 20, schematic illustration once.
With shown in the FBD (function block diagram) concept nature, this control device is that the measured value X by feedback, processing back measuring instrument 16 determines that the size of the workpiece that processing machine is processed next time determines point calibration value U as Fig. 4.
Concerning this system of processing, has the workpiece of the measurement of back to be processed measuring instrument 16 such as 1 between processing machine 10 and the postorder in-process measurement instrument 16 at least.Therefore, can think that this control device 20 is is that input signal, dimension information are output signal with corrected value U, and the control system of MS idle time is arranged between input signal and output signal.It is by feedback system, proofreaies and correct the size reference mark.Promptly in this example, size Control point is exactly a kind of form of " processing conditions " in the invention of each application.
With Figure 10 simple declaration the processing procedure of this control device 20.At first, the 1st step, from postorder in-process measurement instrument 16, input measurement value X.Then the 2nd step contacted disturbance in order to eliminate from measured value X, and to till now, all measured value X that obtain calculate moving average P.At every turn, obtain measured value X, just store in storage space, and come moving average calculation P according to a plurality of measured value X of these storages in the computing of aforementioned corrected value from postorder in-process measurement instrument 16.In the 3rd step, moving average P is carried out the two ends diameter proofread and correct (back detailed description).In the 4th step, according to being carried out the moving average P that the two ends diameters is proofreaied and correct, calculate moving average P and workpiece processing size expectation value A0 difference is error amount R, and the differential value T equidimension information of error amount R.In the 5th step, will carry out blurring computer and come calculated correction value U according to these dimension informations with fuzzy reasoning.Then the 6th step was considered continuity, and the corrected value U that calculates is proofreaied and correct.The 7th step, corrected value U is delivered to size Control device 14, then according to corrected value, processing machine 10 processing works.
Just, in this example ,~the 7 step of the 1st step of Figure 10 and the whole process of carrying out, an example of relevant with respectively inventing of claim 3 and 4 exactly " reaction type job operation " according to corrected value U.
This control device 20, receive all measured value X that 7 axle journals of workpiece are represented, but it basically still according to the measured value X (promptly respectively holding the measured value on the face of cylinder) of the 1st journal surface and the 7th journal surface determine size device 14, correspondence respectively holds the corrected value U on the face of cylinder.
Above simple declaration the overall flow of above-mentioned control device 20, each notion in this flow process is described respectively below.
At first, describe finding the solution moving average (the 2nd step of Figure 10).
When measured value X obtains time series data from postorder processing measuring instrument 16, unequal between a plurality of adjacent regions.Like this, in the present embodiment, in order to remove the physical size of the inequality judgement work between adjacent region, with regard to current measured value X and till the last time at least 1 up-to-date measured value of gained calculate moving average again, what use like this is the actual value of measured value X.
Obtain described moving average successively, that is to say,, use and calculate current moving average Pi as shown in the formula the computing formula of (occasion of K=5) based on by the end of the individual measurement formula of current resulting up-to-date K (constants more than 2).
(several 1) P i = b i - 4 X i - 4 ÷ b i - 3 X i - 3 ÷ b i - 2 X i - 2 ÷ b i - 1 X i - 1 ÷ b i X i b i - 4 ÷ b i - 3 ÷ b i - 2 ÷ b i - 1 ÷ b i
Here i represents the workpiece number (to call the measuring workpieces number in the following text) with the measurement of postorder in-process measurement instrument.
And, (b I-4)~(b i) be for finding the solution current moving average P iThe number of necessary measured value X (=K) reach with the heavy coefficient of number.
Secondly, two ends diameter correction (step of the 3rd among Figure 10) is described.
In the system of processing of this control device 20 that continues, as previously mentioned, emery wheel group 30 is based on the diameter action of 2 in the full barrel surface of workpiece end barrel surface.For this reason, do not consider other barrel surface measured values for proofreading and correct the occasion at size reference mark at the measured value of only considering 2 end barrel surface, the machining precision of a plurality of barrel surface is generally very impartial to this class.
Therefore, in the present embodiment,, adopted time surface technology for addressing this problem.That is to say, as the figure representation of concept of Figure 11, the direction of principal axis position (using (1J)~(7J) expression in the drawings) and the diameter (being moving average P) of each barrel surface of supposing each barrel surface in workpiece exist proportionate relationship, so adopted the technology of the two ends diameter correction that is called measured value X of proofreading and correct 2 end barrel surface respectively.
The object lesson that above-mentioned two ends diameter is proofreaied and correct sees down.That is, two ends diameter correction calculation formula and formula have been adopted
(several 2) P ′ ij = Σ j = 1 7 ( j - jM ) ( P ij - PM i ) Σ j = 1 7 ( j - jM ) 2 · ( j - jM ) ÷ PM i Just, adopted tropic expression formula,, calculated the modified value of the moving average P that respectively holds barrel surface by using described expression formula.In the formula:
X: journal surface numbering (increasing by 1 to 7) from the 1st diameter of axle surface to the 7th journal surface
X ': the mean value of 7 x values
Y: the correction limit of the moving average P in each value of x
P: the calculated value of the moving average P in each value of x
Specifically, to the 1st diameter of axle surface,, obtain the modified value y of moving average P by " x " of 1 substitution following formula 1To the 7th diameter of axle surface,, obtain the modified value y of moving average P by the above-mentioned x of 7 substitutions 7
In addition, in the present embodiment, determine whether to carry out the two ends diameter according to operator's order and proofread and correct.
The following describes obtaining of size Control information (the 4th step of Figure 10).
At the dimension information of obtaining from workpiece, error amount R is not only arranged, and also have differential value T.Error amount R is a kind of form of " scale error ", and differential value T is a kind of form that scale error changes tendency.
Like this, also determine corrected value U, compare when only determining corrected value U, when this also determines corrected value U based on differential value T, compare based on error amount R based on the outer parameter of error amount R, can correctly infer the virtual condition of processing machine 10 and workpiece, improve the correction accuracy of size Control point.
Here, the calculating to differential value T describes.
Differential value T, shown in the figure notion of Figure 12, as principle, suppose that the increase of counting i by current error amount of obtaining and obtained at least 1 up-to-date error amount R constituted till last time the individual error amount R measuring workpieces of L (constants greater than 2) is proportional, come a specific tropic giving 2 error amount R like this, gradient is obtained gradient as differential value T (consistent as radian with the inclination angle of 1 tropic).Specifically, for example, adopt formula as 1 tropic:
(several 3) P ′ i = Σ ( i - iM ) ( P i - PM i ) Σ ( i - iM ) 2 · ( i - iM ) ÷ PM i
In the formula:
X: measuring workpieces is counted the value of i
The mean value of x ': L x value
Y: the actual value of error amount R in each value of x
R: the calculated value of error amount R in each value of x
The mean value of the calculated value of R ': L error amount R
And
(several 4) Σ ( i - iM ) ( P i - PM i ) Σ ( i - iM ) 2
Value become differential value T.
Below, fuzzy operation (the 5th step of Figure 10) is described.
In the present embodiment, adopted error amount R and differential value T have been carried out fuzzy deduction as input parameter respectively.For this reason, in the ROM of control device 20, remember the data that are used for fuzzy deduction in advance.For in fuzzy deduction, data and concrete (a) inference program (b) and relevant a plurality of meta-functions such as error amount R, differential value T and corrected value U are arranged again, (c) stipulate a plurality of fuzzy rules of this class error amount R, differential value T and corrected value U mutual relationship.
To error amount R, preparation and just increasing by 7 fuzzy marks of variation in proper order by negative sense, do not have separately shown in the figure of Figure 13 of function by " NB ", " NM ", " NS ", " ZO ", " PS ", " PM " and " PB ".
Differential value T is preparing when just increasing by 5 fuzzy marks that change by " NB ", " NS ", " ZO ", " PS " and " PB " order by negative sense, and meta-function is shown in the figure of Figure 14 separately.
To corrected value U, preparation and 7 fuzzy marks that just increasing by negative sense by " NB ", " NM ", " NS ", " ZO ", " PS ", the variation of " PM " and " PB " order, meta-function is shown in the figure of Figure 15 separately.And when corrected value U increased, the size Control point uprised, and became big by the diameter of axle surface element diameter of axle, otherwise when corrected value U reduced, size Control point step-down was diminished by the diameter of axle surface diameter of axle.
(table 1)
T
NB NS ZO PS PB
R NB ZO PB PB PM ZO
NM ZO PM PM PS ZO
NS PS PS PS ZO ZO
ZO ZO ZO ZO ZO ZO
PS ZO ZO NS NS NS
PM ZO NS NM NM ZO
PB ZO NM NB NB ZO
An example of fuzzy rule as shown in Table 1:
If R=NB and T=NS be U=PB so
This fuzzy rule group's design is wanted to describe.
This fuzzy rule group is designed to: when the Fuzzy Marks of error amount R increased, corrected value U can increase also and can reduce; When differential value T increased, the value of corrected value U reduced.
And, specifically, appear at successively in the fuzzy reasoning table of table 1 for example.That is to say that for example, when differential value T was " NS ", the corrected value U that error amount R is increased was by " PB ", " PM ", " PS ", ZO ", " ZO ", the minimizing of " NS " and " NM " order.In addition, when error amount R is " NM ", increases corresponding corrected value with differential value T successively by " NS ", " ZO " and " PS " and reduce by " PM ", " PM ", " PS ".
Because of any former thereby when causing fault, measuring accuracy in this case reduces sharp greatly at in-process measurement instrument 12, and the dimensional accuracy of workpiece also just reduces sharp greatly.Even if determine corrected value U during work in-process measuring instrument 12 operate as normal, the dimensional accuracy of workpiece reality probably also can be gone out from the Measurement Allowance bias internal.
Such thing is a lot.When sharply reducing the quite little or rapid increase that becomes respectively according to the measured value X of postorder in-process measurement instrument 16 and become quite big, be designed so that corrected value U divides to approach 0.When work in-process measuring instrument mouth breaks down like this, ignore output signal thereafter, size Control point till the last time also is considered as being fit to current processing, is subjected to the fault effects of in-process measurement instrument 12 not too large so, might keep high workpiece size precision.
Specifically, as follows in the fuzzy reasoning table of table 1 for example.That is: be " NB " or " NM " at error amount R respectively, and differential value R be " NM ", differential value T during for " NB " and error amount R be " PM " or " PB ", and differential value T is when being " PB ", corrected value all is " ZO ".
And, in the fuzzy operation in above-mentioned the 5th step,, adopted as corrected value and determined that the 1st corrected value of mode determines that mode and the 2nd corrected value determine mode even if still determine high-precision corrected value U well in order there to be idle time.
Determine in the mode at the 1st corrected value, as shown in figure 16, stored one by one according to the measured value of postorder processing back measuring instrument.When the number of the measured value X of storage during,, determine with the size Control corrected value U of processing machine at the workpiece of next stage processing based on a plurality of measured value X of the setting of such storage in the number of setting.Further, in this mode, in the workpiece that the size Control point that influences according to the up-to-date corrected value U that is determined is processed at first, when at every turn measuring ahead calibration of workpieces with postorder in-process measurement instrument 16, the storage of measured value X when beginning from measuring restarts from no store status, determines new corrected value U based on the measured value of the setting number of storing.
And in the present embodiment, the promptly main correction of the above-mentioned correction that continues can also be assisted correction by operator's instruction.Between original adjacent secondary master proofreaies and correct, should not have other to proofread and correct fully, but consider from the meaning that improves main precision of proofreading and correct, can be after main the correction certain during in, can do not remove the corrected value computing with the storage data cases under, determine corrected value.
Here, the main correction is meant that store measurement values X when the number of the measured value X that stores reaches the setting number, then according to several measured values of setting X of storage, determines to fix tentatively corrected value U successively P, and it directly is used as correction of a final proof value U FCorrection.
In contrast to this, " the auxiliary correction " is meant, even after main correction finishes, also continues measured value X is stored.Whenever obtain new measured value X, just according to the corrected value computing with several measured values of setting X up-to-date among a plurality of measured value X that store in the storer, utilize and the identical method of main correction, calculate the tentative corrected value U of each time PThen the tentative corrected value U of each time PDeduct last time tentative corrected value U PCome as correction of a final proof value U FIn this auxiliary correction, by proofreading and correct the tentative corrected value U that identical method is determined with the master P,, but give size Control device 14 again after deducting last time tentative school value not directly to size Control device 14.The following describes this reason.
Concerning auxiliary the correction, should be according to the measured value X of the workpiece of the main correct influences that is subjected to carry out earlier, determine correction of a final proof value U FBut, in some situation, be subjected to the workpiece of main correct influences, after processing, can not directly measure, but, just begin measured through after the measurement of several other workpiece by postorder in-process measurement instrument 16.Therefore, in this example, in order in the size Control of next workpiece to be machined, not repeat to reflect main effect of proofreading and correct, during the measurement of the previous workpiece that finishes the ahead calibration of workpieces relevant with main correction, according to each time measured value X, by proofreading and correct identical method, determine corrected value U, promptly tentative corrected value U with the master PThen, deduct the main correction of a final proof value U that proofreaies and correct FEffect, be exactly the auxiliary correction of a final proof value U that proofreaies and correct FMore than, main correction and auxiliary relation of proofreading and correct have been described, in auxiliary the correction, certain also is the same with once relation before this once.
Also have, in this enforcement, the auxiliary number of corrections of carrying out after certain once main correction is determined.Just, at the correction of a final proof value U of a series of auxiliary corrections FDefinite number of times with detected, when this detected definite number of times reaches setting value, will finish this a series of auxiliary corrections.
But, only accomplish these, can't cooperate main correction and auxiliary carrying out of proofreading and correct very well period with the change of measured value X period.Might when really needing main correction and auxiliary the correction, but not proofread and correct.For fear of this situation, in this example, according to operator's instruction, as the correction of a final proof value U of a series of auxiliary corrections FDefinite number of times when reaching setting value, if in the middle of main school value and a series of auxiliary correction, the auxiliary a plurality of correction of a final proof value U that proofread and correct of at least one series FAnd be not equal to 0 in fact, just finish a series of auxiliary corrections, if equal 0 in fact, can think at least that then be inappropriate implementation period of current auxiliary correction, correction of a final proof value U when therefore continuing to carry out auxiliary the correction FThe mensuration of definite number of times restart from 0.
In this example, determine mode, be divided into and have only master's correction and do not carry out the mode of assisting the mode of proofreading and correct and removing the practicable auxiliary correction of master's correction as corrected value.Adopt any mode to determine on earth,, just adopt a kind of mode in back if auxiliary instruction of proofreading and correct is arranged by operator's instruction, otherwise a kind of mode before adopting.And auxiliary correcting mode also can be divided into assists correcting mode and does not assist the mode of proofreading and correct.This instruction by the operator is determined.
Illustrate that then the 2nd kind of corrected value determine mode.The 2nd kind of corrected value determines that mode is also the same with the 1st kind of mode, and measured value is stored successively, when the number of stored measured value X reaches the value of establishing value, just determines new corrected value according to these several measured values of setting X that deposited.But in this mode, from determining corrected value U, the storage of measured value X restarts from no store status.From determine each corrected value to processing back measuring instrument 16 detect be subjected to till the calibration of workpieces ahead that corrected value U influences during, whenever obtaining new measured value X, just according to each measured value X and each corrected value U, at these workpiece of supposition is under the situation about processing by the size Control point that influenced by corrected value, the measured value of prediction workpiece.Measured value X after the prediction is stored as actual measured value, and several measured values of the setting X according to these storages determines current corrected value then.
Specifically, during idle time, also store data by shown in Figure 17.At this phase data memory, measured value X is not directly deposited, but such by what use broken broken line to represent among the figure, store after being offset, and be to carry out data-bias.Its side-play amount, tentative in the corrected value of at this before, determining, also the corrected value that in measured value X, does not reflect with.In legend,, do not determine other corrected value U, so its tentative side-play amount is consistent with corrected value U because before corrected value is determined to begin to reflect among measured value X to corrected value U.But shown in Figure 22 and 23, from determining corrected value U 1Beginning had another corrected value U before its tested value X reflects 2In this case, at another corrected value U 2After determining, corrected value U 1And U 2" with " become tentative side-play amount.
And, determine in the mode at the 2nd kind of corrected value, be subjected to after part is measured by postorder in-process measurement instrument 16 in the correction ahead that corrected value U influences, from each in the past predicted measured value X, deduct and fix tentatively side-play amount and restore.Add on the former measured value X that has restored that then final side-play amount carries out the correction of measured value prediction.In fact just, the measured value X before prediction is on the former measured value X, directly adds final side-play amount.Final side-play amount is fixed on the back really to be described in detail.
Definite mode of the 2nd kind of corrected value also determines that with the 1st kind of corrected value mode is the same, can be by the multiple mode of operator's Instruction Selection.
Then, illustrate that continuity considers a problem (the 6th step of Figure 10).As aforementioned, along with measured value is counted in the increasing of i increases that almost be directly proportional of workpiece size error, therefore should make size Control corrected value U have continuity in general, be and suppress the processing work size variatiom, should make with the smooth change of carrying out of processing.
Therefore, in this example,, be conceived to this fact, do not consider that at first continuity determines corrected value U as Figure 18 expression conceptually, it as provisional value (to call " tentative corrected value " in the following text, with tentative corrected value U described later PDifferent).The increase that the tentative corrected value of up-to-date M (more than 2) that obtain till supposing is specifically counted i with the mensuration workpiece almost is directly proportional, and obtains unifying with aforementioned field a tropic of sample form according to these M tentative corrected value U.Then, release the actual value of current corrected value U, and its end value (claiming " correction of a final proof value " later on), it and described correction of a final proof value U as corrected value U according to this formula FDifferent).
Particularly, the formula of a tropic such as employing formula:
(several 5) U * i = Σ ( i - iM ) ( U i - UM i ) Σ ( i - iM ) 2 · ( i - iM ) ÷ UM i
In the formula:
X: measuring workpieces is counted the value of i
The mean value of x ': M value
The actual value of tentative corrected value U in each group of y:x
The calculated value of tentative corrected value U in each group of U:x
The mean value of the calculated value of U ': M tentative corrected value U
So,, just obtain current final modified value U if the current work of measuring is counted x in the above-mentioned formula of value substitution of i *
In addition, in the present embodiment, whether the implementation of continuity consideration type correction is instructed by the operator.
Also have, conceptual in Figure 19, when having represented that the revision directive of continuity consideration type takes place the operator typically, obtain final modified value U by measured value x *Process, in this drawing,, represented that surveying work counts the value of i and increase gradually on the left-hand right side.Be clear that from figure beginning is stored measured value x into the modified value operand store by no store status, obtain finally modified value U of the junior one when having stored (K+L+M-2) individual measured value x *, this is the example of " setting a plurality of " of the storage of relevant measured value x.
More than, put it briefly and understand the content of the size Control point calibration that is undertaken by control device 20.Below, the process flow diagram 5-9 based on expression size Control point calibration program specifically describes.
At first, the stage S1 of Fig. 5 (followingly representing with S1 simply that other stage is expression in a like fashion also) from keyboard 50 or assisted memory device 22 numerical value or instruct and import as parameter.Then, in S2, from the new measured value x of postorder in-process measurement instrument 16 inputs.Measured value x is by 7 all diameter of axle surfaces input one by one successively.Measured value x is stored separately by corrected value operand store and correction reflection information operand store.
In S3, judge and whether proofread and correct the preceding sign of reflection at " ON " state, indicate it is the size Control point that is used to indicate on the size Control device 14 before proofreading and correct reflection, in at least one workpiece that it is subjected to be processed into after the influence of modified value U, top calibration of workpieces ahead is not by being measured by postorder in-process measurement instrument, and promptly whether measured value x has reflected corrected value U.Reflect that preceding sign is off if revise, represent that calibration of workpieces has finished to measure ahead, just be in the state of proofreading and correct after reflecting.On the other hand, proofreading and correct the preceding sign of reflection is ON, represents that calibration of workpieces does not also finish to measure ahead, just is in the preceding state of correction reflection.
Moreover, even a series of processing has begun, but, arriving before the postorder in-process measurement instrument 16 at the processing work of finishing at first, measured value x is non-existent.In initial a series of processing, normally use the manual correction anchor point by the operator.Therefore, in this example, before the processing work finished at first arrived postorder in-process measurement instrument, it was described from normal moveout correction anchor point not to be resembled the back.The processing work of finishing at first just begins to carry out from normal moveout correction after arriving postorder in-process measurement instrument, and determines initial corrected value U, and corrected value U sends to size Control device 14 then.Indicate it is ON before proofreading and correct reflection this moment.Below, just supposition is proofreaied and correct and is reflected that it is ON now like this that preceding sign resembles, and illustrates the execution content of size Control point calibration.
Because indicate it is ON before proofreading and correct reflection now, so the decision content Yes of S3, this moves on to the step below the S4.Judge in the step group of S4-6 whether calibration of workpieces is measured by postorder in-process measurement instrument 16 ahead.
The new measured value x of each measurement just carries out the judgement of measured value front and back difference upset condition.Judge with this whether calibration of workpieces is measured by postorder in-process measurement instrument 16 ahead.
In the difference upset condition of the measured value front and back of each time, the a plurality of measured value x that obtain before this, be divided into two measurement set, a first measurement set of forming by the measured value x of the setting number that obtains earlier, another is the back measurement set of forming at the measured value x by setting number that obtains thereafter, and it includes up-to-date measured value x.Then, we calculate the typical value-moving average H of the first measurement set of representative separately fWith the typical value-moving average H that represents the back measurement set REach moving average H f, H RBe to utilize most the measured value X that belongs to each measured value group, can calculate equally with the method for above-mentioned moving average calculation P.
Further, during the difference upset condition is judged before and after the measured value of each time, moving average H before calculating fWith back moving average H RDifference DELTA H, i.e. difference Δ H before and after the measured value.Next, judge current measured value front and back difference Δ H iAbsolute value and the measured value of last time before and after the difference absolute value delta H I-1Compare and whether reduce, and difference Δ H before and after the measured value of last time I-1Absolute value and last time Δ H I-2Compare and whether increase, that is to say, judge difference Δ H before and after the measured value of last time I-1Whether the increase of counting i along with measuring workpieces shows extreme value (with reference to (b) of Figure 31).Be judged to be when showing extreme value, decision table reveals the measured value front and back difference Δ H of the last time of extreme value again I-1Absolute value whether big than setting value, just whether difference Δ H has bigger variation within a certain period of time before and after the measured value.If big change was arranged in the regular period, the upset condition that just is judged to be measured value front and back difference Δ H surpasses set condition.
Also have, in the present embodiment, in Figure 24 shown in the chart, be set in advance in maximal value and minimum value that the standby that exists between processing machine 10 and the postorder in-process measurement instrument 16 adds number of packages.For example shown in 37, when the measured value X that the calibration of workpieces ahead when standby workpiece number is assumed to minimum value is measured by postorder in-process measurement instrument was included in the measurement set of back at first, the difference upset condition was judged beginning before and after a series of measured value.Also have as shown in figure 38, during revising measured value X that workpiece measured by postorder processing processor 16 ahead and comprise formerly in the measurement set at last when standby workpiece number is assumed to maximal value, the difference upset condition is judged and is finished before and after a series of measured value.
In addition, during the value difference upset condition is judged before and after a series of measurements of present embodiment, when the upset condition of once also not judging difference Δ H before and after the measured value surpasses set condition, think that it constantly is exactly calibration of workpieces moment of being measured by postorder in-process measurement instrument 16 ahead that calibration of workpieces ahead when supposition standby workpiece number is maximal value is measured by postorder in-process measurement instrument 16.
The difference upset condition judges that the measured value X that belongs to each measurement set is many more before and after speaking of measured value in addition, and just the scope in order to the computing moving average is wide more, and for example such shown in the form among Figure 25, difference Δ H is insensitive more to the variation of measured value X before and after the measured value., the number of measured value X that belongs to each measurement set is very few, moving average H precise decreasing then, and further the confidence level judged of upset condition also descends.Therefore, belong to the setting of number of the measured value X of each measurement set, take into account responsiveness and correctness as far as possible, and wish a variable value is arranged because of the occasion difference,
The difference upset condition is judged before and after the concrete measured value, at first in the S4 of Fig. 5, reads a plurality of measured value X that belong to first measurement set from proofread and correct reflection information computing reservoir, calculates the preceding moving average H of these measured values fThe H that calculates fBe saved in and proofread and correct in the reflection information operand store.In S5, the same then, as to calculate the back measurement set back moving average H with S4 R, H RAlso be saved in and proofread and correct in the reflection information operand store.
Then, in S6, calculate these moving averages H fWith moving average H RMeasured value before and after difference Δ H.And in the same step, each reads the measured value front and back difference Δ H of last time in proofreading and correct reflection information operand store I-1Difference Δ H before and after the measured value of last time I-2Whether judge the Δ H of last time I-1Show extreme value, and the value of this moment judges just above setting value whether Δ H has big change.Specifically, we suppose that difference Δ H does not have big change before and after the measured value, and then the judgement of S6 is NO, are judged to be specifically ahead that calibration of workpieces does not also arrive postorder in-process measurement instrument 16 theres, so directly move on to the S7 of Fig. 6.
In S7, whether decision person sends the data-bias processing instruction.Current supposition is not sent, and is judged to be NO, in S8, judges and proofreaies and correct whether the preceding sign of reflection is ON '.Be assumed to ON specifically and then be judged to be Yes, in S9 only the zero clearing of correction calculation storer.Return S2 afterwards.
Then, in the step that repeatedly repeats S2-9, if difference Δ H has big variation before and after the supposition measured value, S6 judgement the becoming Yes of Fig. 5.Be judged to be ahead calibration of workpieces specifically and arrived postorder in-process measurement instrument 16 theres, in S10, proofread and correct reflection before sign become off.Afterwards, in S11, the last time value Δ H of difference Δ H before and after the measured value I-1Be reflected in correction reflection amount Δ U on the measured value X as corrected value U, be stored in and proofread and correct in the reflection information operand store.Afterwards, move on to the S7 of Fig. 6.
Specifically, the judgement of S7 is NO also, in S8, judges and proofreaies and correct whether the preceding sign of reflection is ON.Because be off specifically, so be judged to be NO, S12 divides a word with a hyphen at the end of a line.Therefore, not zero clearing of corrected value operand store in S9 specifically, measured value X still stores.
In S12, from corrected value operand store input measured value X (being the measured value X that has stored) in the past, in S13, can judgement calculate moving average P, judges just whether the number that is stored in the measured value X in the corrected value operand store has more than K.The number of the measured value X of current supposition storage is not more than K, is judged to be NO, then returns S2.
Afterwards, the new measured value X of input in S2 judges in S3 and proofreaies and correct whether the preceding sign of reflection is ON.Current because be off, so be judged to be NO, the S7 of the Fig. 6 that directly divides a word with a hyphen at the end of a line.S7 is judged to be NO, and the judgement of S8 is NO also, and in S12, from corrected value operand store input measured value X in the past, in S13, can judgement calculate moving average P again.If current supposition can be calculated, be judged to be Yes, in S14,, calculate moving average as the front, be stored in the corrected value operand store.
Afterwards, in S15, whether decision person sends two ends diameter correction instruction.If do not send then be judged to be NO, directly move on to S16; If sent instruction, then be judged to be Yes, in S17, carry out two ends diameter correction about the moving average P on above-mentioned two end faces of cylinder.According to this result, the content of change corrected value operand store.Afterwards, move on to S16.
In S16, current moving average P and workpiece size expectation value A 0Difference as error amount R, deposit in the corrected value operand store after, in S18, can judgement calculate differential value T.Judge whether the number that is stored in the moving average P in the corrected value operand store has more than L.Specifically, suppose that the number deficiency L of moving average P is individual, be judged to be NO, move on to the S2 of Fig. 5.Afterwards, the step of pressing S2,3,7,8,12-18 execution result repeatedly.If the number that supposition is stored in the moving average P in the corrected value operand store has more than L, S18 is judged to be Yes, in S19, resembles and calculates differential value T above-mentioned, is stored in the corrected value operand store.Afterwards, move on to the S20 of Fig. 7.
In S20, infer by aforesaid bluring according to moving average P and differential value T, calculate tentative corrected value U.Next, in S21, judge whether send continuity consideration type correction instruction by the operator, if do not send, be judged to be NO, in S22, temporarily will fix tentatively corrected value U as final modified value U*, afterwards, S25 divides a word with a hyphen at the end of a line.Can in contrast, if the operator sends the revision directive of continuity consideration type, the judgement of S21 becomes Yes, judge in S23 and consider the correction of continuity consideration type.Judge whether the number that is stored in the tentative corrected value U in the corrected value operand store has more than M.If current supposition does not have to be judged to be NO and directly to return S2 more than M.Afterwards, repeatedly repeating in the operation of this program, if being stored in the number of the tentative modified value U in the corrected value operand store, supposition do not have more than M, S23 is judged to be Yes, in S24, M tentative modified value U according to being stored in the corrected value operand store resembles preceding method, calculate correction of a final proof value U*, be stored in the corrected value operand store.Afterwards, move on to the S25 of Fig. 8.
In S25, whether decision person has sent auxiliary correction instruction.Current hypothesis is not sent, and then is judged to be NO, in S27, and current correction of a final proof value U *Send to size Control device 14.Afterwards, in S28, whether decision person has sent auxiliary correction instruction, and current supposition is not sent, and is judged to be NO, and S29 divides a word with a hyphen at the end of a line.
In S29, whether decision person has sent auxiliary correction instruction again, and current supposition is not sent, so be judged to be NO, S30 divides a word with a hyphen at the end of a line.In S30, sign before proofreading and correct reflection is changed to ON.Because corrected value U is sent to locating device now, be in and wait for that the calibration of workpieces ahead that influenced by corrected value U has arrived postorder in-process measurement instrument 16, corrected value U is reflected in the state of measured value X.Afterwards, in S31, S2 is got back in the zero clearing of modified value operand store then.
More than, illustrated changing the situation that data processing instructions and auxiliary correction instruction all do not send.Below, we illustrate that data change the situation of not sending and assisting correction instruction to send of instructing.
This occasion, in the S25 of Fig. 8, whether decision person has sent auxiliary correction instruction, if be judged to be YES, in S50, judge and whether is just assisting correction.Judge and show whether auxiliary value of proofreading and correct the auxiliary counts corrected device of carrying out number of times is more than 1.Suppose currently to be shown as 0, then be judged as NO, transfer to the following step group of aforementioned S27 then and carry out aforesaid main the correction.Among the S28 in this step group, whether decision person has sent auxiliary correction instruction.Because instruction is sent in supposition specifically, so be judged as YES, in S51, the value of auxiliary counts corrected device adds 1.Then, transfer to the following step of S29.
After this, if the S50 of execution graph 8 again because the value of current auxiliary counts corrected device is not 0, so be judged to be YES, transfer to the following step group of S52 then and assists correction.At first, in S52, from last corrected value U *Currency deduct previous value as current transmission value.Also has " the correction of a final proof value U here *Currency " corresponding to aforesaid current temporary transient corrected value Up, " last corrected value U *Last time " corresponding to aforesaid last time of temporary transient corrected value Up, " current transmission value " is corresponding to aforementioned current last corrected value U FAfter this, in S53, that transmission value is sent to size Control device 14, assists correction.Again, in S54, auxiliary counts corrected device adds 1, transfers to S29 then.In S29, judge whether to have sent auxiliary correction instruction there,, be judged as YES, transfer to the S55 of Fig. 9 owing to currently sent instruction from the operator.
In S55, judge and whether finish current auxiliary correction.Specifically, judge whether the currency of assisting the counts corrected device has surpassed setting value (S1 at Fig. 5 is imported by assisted memory device 22).Currently do not exceed if be assumed to, then be judged as NO, directly turn back to S2.
After this, in the operation that repeatedly repeats this program, suppose that the currency of auxiliary counts corrected device has surpassed setting value, judge that then S55 is YES, in S56, obtain whole and (to call " total corrected value " in the following text) that send to the corrected value U of size Control device 14 at this auxiliary timing.Subsequently, in S57, judge to add up to whether corrected value is 0 that is to say, whether judgement is because of not carried out current auxiliary correction when really needing, being necessary to continue current auxiliary correction.If suppose current this necessity that do not have, then be judged as NO; In S58, be set to ON before the correction reflection.Clear corrected value computing turns back to S2 then with in the storer in S59.In contrast, suppose to be necessary to proceed current auxiliary correction that S57 is judged to be YES, directly turns back to S2 then.
More than having illustrated is not having situation under the data-bias processing instruction, the following describes in the situation that the data-bias processing instruction is arranged.But the content that data-bias is handled is because of at certain corrected value U 1After having determined, during being reflected in measured value X, corrected value has or not other corrected value U 2Determine and difference arranged.And, from determining certain corrected value U 1During this corrected value is reflected to measured value X, other corrected value U is arranged 2Under the situation about being determined, whether the content that data-bias is handled has also sent auxiliary correction instruction difference because of the operator.Therefore, separately situation is described.
At first, illustrate after certain corrected value is determined do not have another corrected value U during before this corrected value is reflected to measured value X with reference to the example of Figure 21 2Be determined, just determine another corrected value U later on but be reflected to determined value X at corrected value 2Situation.
Be masked as ON before proofreading and correct reflection now, that is to say, up-to-date corrected value U 1After being input to size Control device 14, suppose to be subjected to above-mentioned corrected value U 1The calibration of workpieces ahead of influence is in the state that arrives processing back measuring instrument 16 of waiting for.Therefore, the S3 of Fig. 5 is judged to be YES, and is identical with afore-mentioned, carries out S4~S6.If difference Δ H does not have great changes before and after supposing current measured value, then being judged to be S6 is NO, and transfers to the S7 of Fig. 6.In S7, judge whether to have sent the data-bias processing instruction, sent owing to current, so be judged to be YES, in S70, carry out data-bias and handle.
The details that the adjustment of data is handled is used flowcharting in Figure 20.At first, in S200, judge and proofread and correct whether the preceding sign of reflection is ON.Because current is ON, so be judged to be YES.In S201, with reading in current measured value X the storer, add tentative side-play amount and carry out the measured value prediction at measured value from the corrected value computing.Tentative side-play amount be by, determine till now and do not have tested value X reflection all corrected value U's and (=∑ U i) determine.In the example of Figure 21, because the corrected value U that does not appear at as yet among the measured value X only is U 1So, result, U 1Become tentative side-play amount.After this, in S202, installing the correction end mark that fixes among the RAM is OFF.Illustrate in the back about the function of proofreading and correct end mark.The once execution of S70 more than is through with.
After this, whenever obtain measured value X and just carry out S70, the result carries out adjustment of data processing and promptly predicts measured value shown in the broken broken line among Figure 21.
After this, among the S10 of Fig. 5,, judge that then the S200 of Figure 20 is NO, in S203, judge and proofread and correct as a result whether sign is ON if be masked as OFF before proofreading and correct reflection.Because current is OFF, be judged to be NO, transfer to S204, in S204, read in correction reflection amount Δ U from proofreading and correct the reflection computing with memory,, judge whether very correct above-mentioned measured value is predicted according to this relation of proofreading and correct reflection amount Δ U and the previous corrected value U that determines.Specifically, with before proofreading and correct reflection be masked as the difference that the corresponding corrected value U of OFF measured value X constantly and this corrected value U be reflected in the correction reflection amount Δ U among the measured value X and whether surpass setting value.As previously mentioned, supposing that corrected value U is reflected in the measured value fully, corrected value U as temporary transient correcting value, is carried out the measured value prediction, is the reason that above-mentioned difference occurs.
Also have, here " with proofread and correct reflection before the corresponding corrected value U of measured value X when being masked as OFF " not necessarily consistent with up-to-date corrected value U.Be because from certain corrected value U 1Exist during when being timed to this corrected value really and being reflected in measured value X and determine other corrected value U 2Situation.Therefore, and " with proofread and correct reflection before the corresponding corrected value U of measured value when being masked as OFF " mean and be not reflected in corrected value U definite the earliest among the measured value X before sign is changed to OFF before proofreading and correct reflection, that is to say, mean the above-mentioned corrected value that do not reflect the earliest.
If suppose that the prediction of current measured value is very correct, then S204 be judged to be NO, directly finish the execution of S70; If supposition is not very correct, judge that so S204 is YES, transfer to S205, in S205, read in correction reflection amount from proofreading and correct the computing of reflection information with storer, and read in all measured values (the value prediction after) X of correction calculation with memory stores.And, in same step, deduct aforementioned tentative side-play amount from each measured value X, be recovered to original measured value X (prediction before value) after, processing is as the correction reflection amount Δ U of last side-play amount in former measured value X.Shown in the double dot dash line among Figure 21, can carry out the measured value prediction thus and revise.After this, at the mid-correction end mark of S206 ON.That is to say that revising end mark is that ON represents to have carried out the measured value predicted correction, for OFF represents also not carry out the measured value predicted correction.
After this, obtain new measured value after, if carry out S70 once more, because be masked as OFF before the current correction reflection, so judgement S200 is NO, in S203, judges and proofread and correct whether end mark is ON, because be ON now, be judged to be YES, skip the execution that S70 is directly finished in S204~206.Therefore, before proofreading and correct reflection, be masked as OFF during, as shown in figure 21, measured value X intactly is stored in the corrected value computing with in the memory, does not only carry out the correction to the measured value prediction is not carried out in the measured value prediction yet.
After this, if the number of the measured value X that stores arrives when setting number, in S20, determine other corrected values U in the correction value storer 2Shown in the hatched area among Figure 21, finally a plurality of measured value X based on the past determine corrected value U 2
The following describes from determining corrected value U 1To making U 1Determine other corrected values U during being reflected in till the measured value 2Situation.But dividing again has auxiliary correction instruction and not auxiliary two kinds of situations of correction instruction to describe respectively.
At first, with reference to Figure 22 example the situation of auxiliary correction instruction is described.
In this case, determined corrected value U 1After being input to size Control device 14, carry out the judgement of S2.Because current auxiliary correction instruction is judged NO, in S30, put and be masked as ON before correction reflects, clear corrected value computing storer in S31.After this, turn back to the S2 of Fig. 5.
After this, in S2, at corrected value computing new measured value of storage in the storer.Then, whether in S7, judging has the data-bias processing instruction.Because current have migration processing to instruct, be judged to be YES, skip S9.That is, different when also not having the data-bias processing instruction, be masked as ON before the reflection and also can not remove corrected value computing storer even proofread and correct, measured value X is stored in order.
During each measured value X of every storage, the S7 of process decision chart 6 is YES, carries out S70.Concerning S70, at first, in the S200 of Figure 20, judge and proofread and correct whether the preceding sign of reflection is ON.Because be ON now, be judged to be YES.In S201, read current measured value X from the corrected value computing with storer, the tentative side-play amount that adds at current measured value X.Because the current corrected value U that also is not reflected in the measured value has only U 1, the result is U 1As current tentative side-play amount.Thus, shown in the broken broken line among Figure 22 (a), carry out the measured value prediction.That is input corrected value U, 1After, on one side to measured value X with corrected value U 1Identical side-play amount is offset, and another side is for determining next corrected value U 2Begin storage.Then, in S202, be changed to OFF, more than end up being the execution of S70 proofreading and correct end mark.
After this, the input of the measured value X of repetition postorder in-process measurement instrument 16 reaches measured value is predicted.When the result reaches setting a plurality of when the number that exists the corrected value computing with the measured value X of memory, shown in Figure 22 (b), determine corrected value U at S20 2The shadow region shows to determining corrected value U among the figure 2And the measured value X after the prediction of using.
Determine corrected value U 2After because the auxiliary correction instruction of current nothing, so among Fig. 8 S29 be judged to be NO, before the mid-correction reflection of S30, be masked as ON (still,, not changing) so proofread and correct the preceding sign of reflection because be ON now; In S31, clear corrected value computing storer.Therefore, after this if input measurement value X then stores corrected value computing storer under the state that does not have storage.
Carry out S70 then, because be masked as ON before proofreading and correct reflection now, the S200 of Figure 20 is judged to be YES.In S201, read current measured value X from the corrected value computing with storer, add tentative side-play amount at current measured value.Specifically, because two corrected value U that do not appear at as yet among the X are arranged 1And U 2So result's tentative side-play amount this time is (U 1+ U 2).In view of the above, shown in broken broken line among Figure 22 (C), predict measured value.Promptly import corrected value U 2Afterwards, the data of measured value X, use and corrected value U last time 1With current corrected value U 2When the side-play amount that sum equates is offset, for determining next corrected value U 3And begin to store.Behind the tool, be OFF in the mid-correction end mark of S202.The execution of S70 more than is through with.
After this, suppose corrected value U 1Be reflected among the measured value X and proofread and correct reflection before be masked as OFF, then S200 be judged to be NO, in S203, judge and proofread and correct whether end mark is ON.Because current is OFF, be judged to be ON, judge in S204 whether the measured value prediction is very correct.It is not very correct supposing current, then is judged to be YES, in S205, carries out the correction with the measured value of aforementioned field contract sample.Shown in the heavy line among Figure 22 (d), be that measured value is corrected behind its prediction of result.That is to say, if use U 1' represent that corrected value last time is reflected in the amount in the actual measured value, then U 1'+U 2Become from a plurality of data U of storage 1+ U 2Side-play amount.
After this, obtain new measured value, carry out S70.Because be masked as ON before proofreading and correct reflection now, so judgement S200 is YES.In S201, shown in the broken broken line of Figure 22 (e), carry out the prediction of measured value.That is, at above-mentioned corrected value U 1After being reflected in measured value X practically, corrected value U as tentative skew 2Be added in the new measured value.After this, when being stored in the corrected value computing when counting to the numerical value that reaches setting, shown in Figure 22 (f), in S20, determine corrected value U with the measured value in the storer 3Shadow region in the drawings shows to determining corrected value U 3And measured value X after the prediction of using.
Below, the occasion of auxiliary correction instruction is sent in explanation with reference to Figure 23 example.
Suppose and carried out relevant corrected value U 1Auxiliary correction (using auxiliary correction of " USB " expression use corrected value in the drawings), and currently should assist correction to finish, shown in Figure 23 (a).Also have, this class master proofreaies and correct and the mutual common a series of corrections that constitute of auxiliary correction.If finish current auxiliary correction, i.e. supposition finishes a series of corrections for the first time, and then the S55 of process decision chart 9 is YES.Also have, if suppose aforementioned total corrected value actual be 0, judge that then S57 is NO, in S58, be masked as ON (, not changing) before proofreading and correct reflection because be ON.In S59, clear corrected value computing storer turns back to S2.
Afterwards, obtain new measured value X, judge,,, carry out S70 so be judged as YES because current the data-bias instruction is arranged if carry out the S7 of Fig. 6.In S70,,, in S201, read this measured value from the corrected value computing with storer, and on this measured value X, add the offset correction amount so the S200 among Figure 20 is judged to be YES because be masked as ON before proofreading and correct reaction now.At this, do not have only U because also be not reflected among the corrected value U of measured value X 1So this temporary transient side-play amount is exactly U as a result 1Thus, shown in Figure 23 (b), carry out the corrected value prediction.That is, finish once a series of corrections after, measured value X is used and corrected value U last time 1When the side-play amount of same amount was offset, the master proofreaied and correct U for next time 2Determine begin the storage.After this, the corrected value end mark is changed to OFF in S202.The execution of S70 more than is through with.
After this, carry out input and the measured value prediction of the measured value X of processing back measuring instrument 16 repeatedly.Its result, reaches the setting number at the number of the measured value X that stores in storer when the corrected value computing, the time, shown in Figure 23 (b), in S20, determine main corrected value U 2Shadow region among the figure is exactly for determining main corrected value U 2Used prediction back measured value.
If determined main correction U 2, because of the current instruction that has subsidy to proofread and correct, thus among Fig. 8 S29 be judged to be YES, in the S55 of Fig. 9, judge whether to finish auxiliary the correction.If this time supposition should not finish, then be judged as ON, directly get back to S2.
After this, in S2, obtain new measured value X, then carry out S70.Because be masked as ON before proofreading and correct reflection now, thus the S200 of Figure 20 be judged as NO, in S201, carry out the measured value prediction.This time, also the corrected value that does not appear in the measured value has U 1And U 2, because only prior to this auxiliary subsidiary auxiliary correction of main correction of proofreading and correct, the tentative side-play amount in auxiliary the correction is U 1Subsequently, as Figure 23 (c) with (d), determine the auxiliary corrected value USB that proofreaies and correct usefulness.Suppose and this time can not finish described auxiliary correction, then the S55 of process decision chart 9 is NO, directly turns back to S2, obtains new measured value X.Subsequently, carry out S70, because be masked as ON before the current correction reflection, judgement S200 is NO, in S201, with last time situation identical, carry out the prediction of measured value.
After this, supposed before the subsidy correction finishes that calibration of workpieces arrives processing back measuring instrument 16 ahead, and be masked as OFF before the correction reaction.In this case, in S70 because be masked as OFF before the current correction reflection, thus S200 be judged as NO, in S203, judge and proofread and correct whether end mark is ON.Because be OFF now,, judge in S204 whether the measured value prediction is correct so be judged to be NO.If this time supposition is very incorrect, be judged to be YES so, in S205, carry out the correction of measured value prediction.Shown in Figure 23 (b), finish to corrected value U proofreading and correct from subsidy last time 2The measured value X that obtains during before determining and from corrected value U 2Be determined to and proofread and correct before the reflection sign and become obtained measured value X during the OFF, according to proofreading and correct respectively shown in the heavy line among the figure.That is to say, if use U 1' expression master's last time proofreaies and correct U 1Reflection amount on measured value X, the side-play amount of then stored a plurality of measured value X is from U 1Proofread and correct and be U 1'.
A series of corrections of the 2nd time if be through with just by shown in Figure 23 (e), are pressed and this main U of correction the data of measured value X 2When identical temporary transient side-play amount is offset, for main correction of determining next time begins storage.After this, when the number of the measured value X that has stored reaches the setting number, shown in Figure 23 (f), determine the main for the third time U of correction 3
Can know from the above description, concerning present embodiment, in the control device 20, by the part that the step except S27 and S53 in the size Control point calibration procedure chart 8 is carried out, be exactly an example of " corrected value determining section " in claim 1 and 2; In the control device 20, the part of carrying out S27 and S53 is exactly an example of " corrected value is given certain portions ".And in size Control point calibration procedure chart 8, the step except S27 and S53 is exactly an example of " corrected value is determined operation " of claim 3 and 4.
This example is, is being processing object with the bent axle, and a plurality of diameter of axle curved surfaces of bent axle as working position, are carried out using an example of the present invention in the size Control means for correcting that system of processing that cylinder grinds uses together.But, in the size Control point calibration device that other system of processing is used, can certainly use the present invention.The example of other system of processing can be enumerated, with the engine cylinder as processing work, existing in advance hole in the cylinder, as the system of processing of each working position holystone.
More than, an example of the present invention is had been described in detail according to figure, but can be through permission not exceeding under the application range situation, according to party's knowledge, change and improve back use the present invention.

Claims (16)

1. apparatus for feedback-compensating working condition, it has that (a) order is carried out the processing machine of multiplex's part processing and (b) according to the corrected value of being supplied with by the outside, determine aforementioned processing machine processing conditions, and control the processing machine controller of aforementioned processing machine and (c) proceeding measurement by the measuring instrument of the mach multiplex's part of aforementioned processing size by this processing conditions, and be used between processing machine and measuring instrument, existing at least the system of processing of the workpiece that a wait measuring instrument measures, it is characterized in that it comprises the corrected value determining section, obtain one by one measured value this time that aforementioned measuring instrument measures with last time measured value the measured value front and back of difference poor, when the variable condition of difference surpasses designated state before and after the measured value of trying to achieve, determine and by the processing conditions corrected value of aforementioned processing machine processing work next time and its corrected value to be supplied with the corrected value supply unit of aforementioned processing machine control device according to the measured value of aforementioned measuring instrument.
2. apparatus for feedback-compensating working condition as claimed in claim 1 is characterized in that:
Aforementioned corrected value determining section, the measured value of the aforementioned measuring instrument of sequential storage, according to the repeatedly measured value of having stored, determine the aforementioned corrected value, whenever the measured value that obtains simultaneously aforementioned measuring instrument just asks the aforementioned measurements front and back poor one by one, between when the difference upset condition surpasses set condition to aforementioned measured value of having tried to achieve when corrected value is determined, the value of difference before and after measured value when a plurality of measured values of being measured by aforementioned measuring instrument are surpassed set condition with upset condition poor before and after the aforementioned measurements, carry out substantial same amount skew, determine new corrected value according to the measured value after the skew.
3. apparatus for feedback-compensating working condition as claimed in claim 1 is characterized in that:
Measure value group in advance and form by what a plurality of measured values of aforementioned measuring instrument proceeding measurement can divide that at least one measured value at first measured of serving as reasons forms with at least one measured value of later stage measurement, the back measurement value group that comprises up-to-date measured value again, represent its each typical value of measuring value group and later stage measurement value group in advance respectively by this sub-value and the decision of last sub-value of above-mentioned measured value respectively, the difference of two typical value is poor before and after the aforementioned measurements.
4. reaction type job operation,
Sequentially carry out the processing of multiplex's part with processing machine, by be configured in and processing machine between have the measuring instrument proceeding measurement of the position of a completion of processing workpiece size of having processed mach multiplex's part by this at least, proofreading and correct according to this measured value will be with the processing conditions of processing machine processing work next time; It is characterized in that, it is poor that it contains before and after the measured value of difference of this sub-value of obtaining aforementioned measuring instrument measured value one by one and last sub-value, when the variable condition of difference surpasses designated state before and after the measured value of trying to achieve, determine and to determine operation by the corrected value of the corrected value of the aforementioned processing conditions of aforementioned processing machine processing work next time according to the measured value of aforementioned measuring instrument.
5. reaction type job operation as claimed in claim 4 is characterized in that:
The aforementioned corrected value determines that process sequence stores aforementioned measuring instrument measured value, according to a plurality of measured values of having stored, judge the aforementioned corrected value, when meanwhile whenever obtaining the measured value of aforementioned measuring instrument, order asks the aforementioned measurements front and back poor, between when the difference upset condition surpasses set condition to the aforementioned measured value of having obtained when corrected value is judged, the value of difference is carried out substantial same amount skew before and after measured value when a plurality of measured values of being measured by aforementioned measuring instrument have surpassed set condition with the upset condition of difference before and after the aforementioned measurements, determines new corrected value according to the measured value after being offset again.
6. as the reaction type job operation in the claim 5, it is characterized in that:
The aforementioned corrected value is judged operation, when determining aforementioned each corrected value, to a plurality of said workpiece by the aforementioned processing conditions processing that influenced by each corrected value, during ending when measuring by aforementioned measuring instrument as the calibration of workpieces ahead of first head part, when whenever obtaining aforementioned measuring instrument measured value, by with the skew of each measured value with as temporary transient each corrected value same amount of side-play amount, temporarily carry out the aforementioned measurements prediction, when the upset condition of difference surpasses set condition before and after judging aforementioned measurements, after from each prediction back measured value, removing the influence of aforementioned temporary transient side-play amount, again before and after the measured value when the upset condition of difference before and after the aforementioned measurements has been surpassed set condition difference as final side-play amount, the identical value that measured value after removing is carried out in essence is offset, and carries out the correction of aforementioned temporary transient measured value prediction.
7. as the reaction type job operation in the claim 4, it is characterized in that:
The aforementioned corrected value determines to have in the operation following upset condition to judge operation, when whenever obtaining aforementioned measuring instrument measured value, carry out the judgement of measured value front and back difference upset condition, and during the difference upset condition is judged before and after each time measured value, difference is littler than difference before and after the measured value that is in measured value front and back difference upset condition judgement last time before and after being in the aforementioned measurements in this measured value front and back difference upset condition judgement, and the measured value front and back that are in its measured value front and back difference variable condition judgement last time are poor greatly poorer than the measured value front and back that are in measured value front and back difference upset condition judgement last time, when difference is represented extreme value with respect to the increase of measuring workpieces number before and after the measured value, judge that the upset condition of measured value front and back difference has surpassed set condition.
8. as the reaction type job operation in the claim 7, it is characterized in that:
Aforementioned upset condition is judged operation, is meant that difference presents extreme value before and after aforementioned measured value, and when difference has surpassed setting value before and after the measured value at that time, can judge that the upset condition of difference before and after the measured value has surpassed the operation of set condition.
9. as the reaction type job operation in the claim 4, it is characterized in that:
Measure value group in advance and form by what a plurality of measured values of aforementioned measuring instrument proceeding measurement can divide that at least one measured value at first measured of serving as reasons forms with at least one measured value of later stage measurement, the back measurement value group that comprises up-to-date measured value again, represent its each typical value of measuring value group and later stage measurement value group in advance respectively by last sub-value and the decision of this sub-value respectively, the difference of two typical value is poor before and after the aforementioned measurements.
10. as the reaction type job operation in the claim 9, it is characterized in that:
It is the minimum value of standby workpiece number that the aforementioned corrected value determines to preestablish in the operation workpiece number that exists between aforementioned processing machine and measuring instrument, it is corresponding calibration of workpieces ahead when being minimum value with the actual standby workpiece number of supposition, workpiece ahead in a plurality of said workpiece of processing by the aforementioned processing conditions that influenced by fixed up-to-date corrected value, the measured value of measuring with aforementioned measuring instrument is included in aforementioned back measured value group time at first, begins to carry out series of measured values front and back difference upset condition and judges.
11. the reaction type job operation as in the claim 10 is characterized in that:
The aforementioned corrected value is determined operation, for as the standby workpiece number of the workpiece number that exists between aforementioned processing machine and measuring instrument specified maximums in advance, as with the actual standby workpiece number of supposition a plurality of said workpiece that corresponding calibration of workpieces is ahead processed by the aforementioned processing conditions that influenced by fixed up-to-date corrected value when being maximal value in first head member by the measured value of measuring instrument be included at last aforementioned before the measured value group time, finish series of measured values before and after the difference upset condition judge.
12. the reaction type job operation as in the claim 11 is characterized in that:
The aforementioned corrected value is determined operation, during the difference upset condition is judged before and after aforementioned series of measured values, once also not judging when the poor upset condition in measured value front and back surpasses set condition, is the actual aforementioned standby workpiece number of supposition the moment that the corresponding aforementioned calibration of workpieces ahead of maximal value is measured by measuring instrument to be used as the moment of aforementioned calibration of workpieces ahead by the measuring instrument measurement.
13. the reaction type job operation as in the claim 4 is characterized in that:
The aforementioned corrected value is determined operation, according to as the error amount of the difference of the expectation value of aforementioned measurements and said workpiece processing dimension with and the error amount rate of change determine the aforementioned corrected value.
14. the reaction type job operation as in the claim 13 is characterized in that:
Aforementioned rate of change is the number of the measured value that obtains with above-mentioned analyzer in an expression of mutually perpendicular two axes of coordinates, and another is represented in the chart of each measured value, by obtaining with a plurality of measured values of measuring instrument sequential determination slope approximate with straight line and as this straight line.
15. the reaction type job operation as in the claim 4 is characterized in that:
The aforementioned corrected value is determined operation, is the aforementioned measuring instrument measured value of sequential storage, and asks moving average with a plurality of measured values of having stored, determines the aforementioned corrected value according to this mean value.
16. reaction type processing conditions correction program recording medium is characterized in that:
It stores the program that should be carried out by the computing machine of system of processing in advance, promptly according to poor before and after the measured value as this sub-value of the measured value of above-mentioned measuring instrument and the difference of last sub-value, the program of the above-mentioned processing conditions corrected value of the workpiece that decision should be processed subsequently by above-mentioned processing machine, said system of processing is equipped with (a) to carry out the processing machine of multiplex's part processing and the corrected value of (b) being supplied with according to the outside with order, determine aforementioned processing machine processing conditions, control the measuring instrument that the size of the mach multiplex's part of aforementioned processing has been used in the processing machine controller of aforementioned processing machine and (c) proceeding measurement by its processing conditions, and between these processing machines and measuring instrument, there is a workpiece of waiting for that its measuring instrument is measured at least.
CN 96109389 1996-07-31 1996-07-31 Feedback type processing condition corrector and method for feedback process Expired - Fee Related CN1121637C (en)

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Application Number Priority Date Filing Date Title
CN 96109389 CN1121637C (en) 1996-07-31 1996-07-31 Feedback type processing condition corrector and method for feedback process

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Application Number Priority Date Filing Date Title
CN 96109389 CN1121637C (en) 1996-07-31 1996-07-31 Feedback type processing condition corrector and method for feedback process

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CN1172293A CN1172293A (en) 1998-02-04
CN1121637C true CN1121637C (en) 2003-09-17

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JP6088581B2 (en) 2015-06-04 2017-03-01 ファナック株式会社 Machine tool control apparatus and control method for controlling synchronous operation of main shaft and feed shaft
JP6301977B2 (en) * 2016-01-26 2018-03-28 ファナック株式会社 Machine tool control apparatus and control method for controlling synchronous operation of main shaft and feed shaft

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