CN1940791A - Assembly line operation status analysis system and analysis method thereof - Google Patents
Assembly line operation status analysis system and analysis method thereof Download PDFInfo
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- CN1940791A CN1940791A CNA2006101419094A CN200610141909A CN1940791A CN 1940791 A CN1940791 A CN 1940791A CN A2006101419094 A CNA2006101419094 A CN A2006101419094A CN 200610141909 A CN200610141909 A CN 200610141909A CN 1940791 A CN1940791 A CN 1940791A
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
On the basis of data acquired from the class 1 type facility (104, 106, and 108), the machining period of the class 2 type facility (108) production process is determined, the class 2 type facility can not output data, but the class 1 type facility can output data indicating a start time of machining the work and data indicating arrangement of facilities in the production line. The machining period is specified as a period from a start time of machining the work in a proximate production process using the class 1 type facility, until the start time of machining the work in a production process immediately after using the class 1 type facility.
Description
Technical field
The present invention relates to a kind of device of assembly line operation status analysis, and analytical approach.More particularly, the present invention relates to such device, it can analyze the operation conditions of each production stage in the production line, the production stage that wherein has uses such lathe, this lathe will be exported as data at the machining state of the workpiece in the lathe self, the production stage that has uses another lathe, and this lathe will not exported as data at the machining state of the workpiece in the lathe self, and these production stages mix forms this production line.The invention still further relates to its analytical approach.
Background technology
In common activity in production, product is created continuously thereby deliver to another production stage and each step, carry out an activity in production from a production stage by the workpiece that will make.If all carry out the effective running of not having waste at each production stage, will realize large-duty production line.The operation conditions of each production stage according to and the difference of working time of other production stage, arrangement of time or the like the factor of conveying work pieces changes between each production stage.
Being used for the technology of operation conditions that Accurate Analysis has the production line of a plurality of production stages is suggested.Japanese Patent Application Publication No.JP-A-is flat-5-277906 described a kind of technology, it can determine whether the conveyer line of conveying work pieces between the lathe in production line exists abnormal conditions, this production line arranged in series a plurality of lathes.In this technology, whether the lathe entrance and exit place of detecting in each production stage exists workpiece.By determining whether there is workpiece in the lathe exit of previous step and whether has workpiece, can determine whether two conveyer lines between the step exist unusually in the lathe porch of back one step.According to this technology, can detect conveyer line by the sensor that provides for each lathe and whether exist unusually, and needn't use only for the sensor whether conveyer line exists abnormal conditions to provide separately is provided.Japanese Patent Application Publication No.JP-A-2004-246404 has described a kind of technology, and in the production line that a plurality of machining tools are composed in series, this technology helped to identify that lathe when certain lathe became the obstacle of production line.In this technology, working time and the non-operating time of forming each machining tool of production line are all detected separately.Further, on the basis of the operating condition of upstream lathe and downstream lathe, measured non-operating time is divided into two classes, one class is owing to workpiece does not also send the time (non-operating time of no workpiece) of causing lathe not move from upstream side, and a class is owing to workpiece can not be sent to the time (non-operating time that workpiece is arranged) that the lathe that causes in the downstream can not move.According to this technology, based on the position relation of each lathe in the operation ratio of each lathe and the production line, might identify lathe that in the lathe of upstream, causes the workpiece non-operating time and the lathe that in the lathe of downstream, causes no workpiece non-operating time (promptly definite obstacle lathe).
According to above-mentioned technology, can grasp the details of assembly line operation status, this production line only is made of such production stage, and each production stage uses such lathe, and this lathe will be exported as data at the machining state of the workpiece in the lathe self.Yet in some cases, the Production Line step is used such lathe, and this lathe will not exported as data at the machining state of the workpiece in the lathe self; For example, wherein carry out manual production stage, perhaps use the production stage of the lathe that does not have the data output function by the workman.For such production line, just be difficult to grasp its operation conditions with above-mentioned technology.
Summary of the invention
The invention provides a kind of technology of assembly line operation status analysis, this production line is made of different production stage mixing, the production stage that wherein has uses such lathe, this lathe will be exported as data at the machining state of the workpiece in the lathe self, the production stage that has uses another lathe, and this lathe will not exported as data at the machining state of the workpiece in the lathe self.
The operation conditions that is used to analyze production line according to the system of first aspect present invention, wherein this production line is made up of two kinds of production stages mixing, a kind of step is used the lathe (lathe of the first kind) of the data that can export expression workpiece processing zero hour, and another kind of production stage uses the lathe (lathe of second type) of the data that can not export expression workpiece processing zero hour.This system comprises: the equipment that is used for the data of storage representation production line lathe layout; Be used for obtaining the equipment of the workpiece processing data zero hour from first kind lathe; In order to the equipment of determining each the production stage operation conditions in production line based on the data and the workpiece processing data zero hour of described expression lathe layout; And the equipment that is used to export determined each production stage operation conditions.Determine that equipment determine to use the process-cycle of specific workpiece in the production stage of the second type lathe, processing zero hour of next workpiece of this cycle from the back to back last production stage that uses the first kind lathe specific workpiece in the back to back back one production step of using first kind lathe processing zero hour till.Determine that equipment also determine to use the latent period of the production stage of the second type lathe, till processing zero hour of processing next workpiece of the zero hour in the back to back last production stage that uses first kind lathe of this cycle workpiece from the back to back back one production step of using first kind lathe.
In an embodiment of the present invention, using the running status of the production stage of the second type lathe is to determine according to the data of the first kind lathe output of using in last or back one production step.With the last production stage of the back to back use first kind of the production stage lathe that uses the second type lathe in, when workpiece processing finished, processed workpiece was replaced by new unprocessed workpiece, and newly the processing of workpiece begins.The workpiece of having processed is then processed in a back procedure of processing of using the second type lathe.Then, add man-hour in the procedure of processing of using the second type lathe, finished work is processed in using back to back back one procedure of processing of first kind lathe.Therefore, processed time of the workpiece in using the production stage of the second type lathe from workpiece processing zero hour of the back to back last production stage that uses first kind lathe is till workpiece processing zero hour of a back production step of using first kind lathe.In aforementioned system, this cycle is confirmed as using the process-cycle of the production stage of the second type lathe.
During the cycle of operation of production line, when processed, the aforementioned process-cycle just repeats each workpiece in the production stage that uses the second type lathe.Production line being not included in period in the process-cycle in the cycle of operation, in the production stage that uses the second type lathe, do not carry out the processing of workpiece.Therefore, in this system, each from the back production step of the back to back use first kind of the production stage lathe that uses the second type lathe till processing zero hour of processing next workpiece of the zero hour in the back to back last production stage that uses first kind lathe of workpiece, this section period is determined to be in the latent period in the production stage that uses the second type lathe.
According to aforementioned system, can determine to use the process-cycle and the latent period of the production stage of the second type lathe.Therefore, though for wherein manually the production stage of processing work and wherein use do not have for the production stage of data output function lathe, its running status can both be grasped.
In aforementioned system, first kind lathe can be exported the data of the expression workpiece processing zero hour and the finish time.The equipment of obtaining can obtain the data of the expression workpiece processing zero hour and the finish time from first kind lathe, and definite equipment determine to use the process-cycle of the workpiece in the production stage of first kind lathe, and this cycle from workpiece processing zero hour the production stage that uses first kind lathe is till process finishing constantly.Determine that equipment can determine to use the latent period in the production stage of first kind lathe, this cycle from workpiece processing finish time the production stage that uses first kind lathe is till next processing zero hour to workpiece.
According to this system, each uses the production stage of first kind lathe to use the process-cycle and the latent period of the production stage of the second type lathe to be determined with each.
In aforementioned system, determine that equipment determine to use the workpiece replacement cycle of the given production stage of first kind lathe, this cycle from the last production stage of the back to back use first kind of the given production stage lathe that uses first kind lathe processing zero hour of next workpiece workpiece in given production stage processing zero hour till.
According to this system, be divided into two classes about the determined latent period of production stage that uses first kind lathe, a class is to need workpiece to change the cycle of operation in the production stage, another kind of is that the lathe wait becomes the possible cycle up to changing the workpiece operation.The running status of production line can be analyzed more accurately.
Determine that equipment can determine the exception cycle by using by the prearranged signals of first kind lathe output, and from process-cycle and latent period, get rid of this exception cycle, so that determine the latent period of actual process-cycle and reality.
The exception cycle can be confirmed as exporting expression first kind lathe generation abnormal conditions signal during.
The exception cycle can be the cycle that is used to change cutter, the workpiece that the processing of this cutter provides at first kind lathe, and be defined as from output expression first kind lathe stop status signal with status signal that changing its cutter and output expression manual operation first kind lathe till output is illustrated in the status signal of processing work the first kind lathe subsequently during.
The exception cycle can be defined as from first kind lathe output expression first kind lathe stop the status signal of status signal, expression workpiece quality check forecast or expression with the examining workpieces quality just manually operated status signal till first kind lathe is exported the signal that expression continues processing work subsequently during.
The exception cycle can be defined as first kind lathe and only export expression just at manually operated status signal, and can not export following any signal during, these signals are: i.e. expression is changed the signal of signal, expression workpiece quality check forecast of cutter forecast or expression first kind lathe and is stopped signal with the examining workpieces quality.
The exception cycle can be defined as signal that cutter that the output expression of first kind lathe is used for processing work grinding during.
The operation conditions that is used to analyze production line according to a kind of analytical approach of second aspect present invention, wherein this production line is made up of two kinds of production stages mixing, a kind of step is used the lathe of the first kind, this lathe can be exported the expression workpiece processing data of the zero hour, another kind of production stage uses the second type lathe, and this lathe can not be exported the expression workpiece processing data of the zero hour.The step that this method comprises is as follows: the data that lathe is arranged on the storage representation production line; Obtain the expression workpiece processing data of the zero hour from first kind lathe; Determine the operation conditions of each production stage on production line, this is that the data of processing zero hour of the data of arranging according to the lathe of expression production line and the expression workpiece that obtains from first kind lathe are determined; Operation conditions with determined each production stage of output.Determining step is determined the process-cycle of such one-period as specific workpiece in the production stage that uses the second type lathe, promptly from the back to back last production stage that uses the first kind lathe processing zero hour of next workpiece specific workpiece in the back to back back one production step of using first kind lathe processing zero hour till.Determining step is determined the latent period of such one-period as the production stage that uses the second type lathe, promptly from the back to back back one production step of using first kind lathe till processing zero hour of workpiece processing next workpiece of the zero hour in the back to back last production stage that uses first kind lathe.
According to system of the present invention and analytical approach, the operation conditions of analyzing such production line becomes possibility, this production line is mixed by different production stages and forms, the production stage that has uses such lathe, this lathe will be exported as data at the machining state of the workpiece in the lathe self, the production stage that has uses another kind of lathe, and this lathe will not exported as data at the machining state of the workpiece in the lathe self.
Description of drawings
From the most preferred embodiment of describing below with reference to accompanying drawing, can be illustrated more clearly in aforementioned and other purpose of the present invention, feature and advantage, among the figure with identical digitized representation components identical, wherein:
Fig. 1 is that a width of cloth has been represented the integrally-built figure of system and production line according to an embodiment of the invention;
Fig. 2 is that a width of cloth is schematically schemed, and represents the structure of analytical equipment according to an embodiment of the invention;
Fig. 3 is that a width of cloth is represented the figure by the analysis mode of analytical equipment execution; And
Fig. 4 represents the performance graph by the analytical equipment generation.
Embodiment
Hereinafter embodiments of the invention will be described in conjunction with the accompanying drawings.At first, will the principal character of embodiment be described.Analytic system according to the embodiment of the invention can be analyzed the evaluating objects cycle of any appointment.
Fig. 1 has schematically shown system 100, and it is used for analyzing the operation conditions of production line according to an embodiment of the invention, and this figure has also expressed production line 102, and it is the evaluating objects of system 100.System 100 comprises management devices 134 and analytical equipment 146, the data that the management devices centralized management is transmitted from production line 102, and analytical equipment is analyzed the running status of production line 102.Production line 102 is made up of a series of production stages, wherein operates in these production stages such as processing work, assembled workpiece, check etc. to be performed.
On production line 102, the workpiece that sends from previous step experiences the operation of carrying out at lathe 104,106,108,110.After finishing these operations, workpiece is sent to back one step.Workpiece is sent to lathe 104 by conveyer line 124 from previous step.Be sent to lathe 106 in lathe 104 processed workpiece by conveyer line 126.Be sent to lathe 108 in lathe 106 processed workpiece by conveyer line 128.Be sent to lathe 110 in lathe 108 processed workpiece by conveyer line 130.Be sent to back one step in lathe 110 processed workpiece by conveyer line 132.
Lathe 104 is machining tools of having equipped PLC112, and PLC is the micro computer that comprises control program.The running of PLC112 control lathe 104.Workman 150 is installed to the workpiece that sends from conveyer line 124 on the lathe 104, and opens the switch (not shown) of lathe 104, so that lathe 104 is according to the control program automated machining of workpieces that is included in the PLC112.After workpiece processing finished, lathe 104 off switch finished running.Lathe 104 has been equipped the Workpiece detecting device (not shown).Whether Workpiece detecting device detects workpiece has been installed on the lathe 104.Workpiece detecting device outputs to PLC112 with testing result.If necessary, lathe 104 can be from the manual control of being carried out by workman 150 that controls transitions to of being undertaken by PLC112.For example, when checking the workpiece quality of lathe 104 processing when the cutter of changing lathe 104 or on worktable, just can carry out the manual control of being undertaken by workman 150.
Similar with lathe 104, lathe 106,110 also is to have equipped PLC114,116 process equipment.If workman 150 is installed to workpiece on the lathe 106,110, and open its switch, then lathe 106,110 is according to the processing that is included in the Automatic Program execution workpiece in the PLC114,116.After workpiece processing finished, lathe 106,110 off switch finished running thus.Similar with lathe 104, lathe 106,110 has also been equipped Workpiece detecting device.Still similar with lathe 104, lathe 106,110 also can be from the manual control of being carried out by workman 150 that controls transitions to of being undertaken by PLC114,116.
When production line moved, workman 150 walked up and down around lathe 104,106,108,110.Workman 150 is after lathe 104 places process workpiece, and workman 150 takes out the workpiece that processes and be put on the conveyer line 126 from lathe 104, gets the next new workpiece that sends from previous step and it is installed on the lathe 104 from conveyer line 124 then.After new workpiece is installed to lathe 104, the switch that workman 150 opens lathe 104 with beginning at lathe 104 place's processing works.Open after the switch of lathe 104, workman 150 moves to lathe 106.Move to after the lathe 106, workman 150 waits until that always lathe 106 processing works finish.After lathe 106 places processing works finished, workman 150 took out the workpiece that processes and be put on the conveyer line 128 from lathe 106, gets the next workpiece that newly sends and it is installed on the lathe 106 from conveyer line 126 then.After new workpiece was installed to lathe 106, workman 150 opened the switch of lathe 106 to begin at lathe 106 place's processing works.After the switch of opening lathe 106, workman 150 moves to lathe 108.After moving to lathe 108, workman 150 gets a workpiece that newly sends and it is installed on the lathe 108 from conveyer line 128.After new workpiece was installed to lathe 108, workman 150 was by using lathe 108 processing works.After workman 150 finished the processing of workpiece, workman 150 took out the workpiece that processes and be put on the conveyer line 130 from lathe 108.After taking out workpiece, workman 150 moves to lathe 110.After moving to lathe 110, workman 150 waits until that always the workpiece processing at lathe 110 places finishes.After the workpiece processing at lathe 110 places finished, workman 150 took out the workpiece that processes and be put on the conveyer line 132 from lathe 110, gets the next workpiece that newly sends from conveyer line 130 then, and it is installed on the lathe 110.After new workpiece is installed to lathe 110, the switch that workman 150 opens lathe 110 with beginning by lathe 110 processing works.After the switch of opening lathe 110, workman 150 moves to lathe 104.After moving to lathe 104, workman 150 waits until that always the workpiece processing at lathe 104 places finishes.After the workpiece processing at lathe 104 places finished, workman 150 changed the workpiece at lathe 104 places once more.Along with workman 150 repeats above-mentioned series operation, production line 102 is sent to back one step at lathe 104,106,108,110 place's processing works and with workpiece.
Lathe 104,106,110 can be equipped with wireless subbase station 118,120,122 respectively.Wireless father base station 136 communications that wireless subbase station 118,120,122 can be equipped with management devices 134.Each lathe 104,106,110 outputs to management devices 134 every the schedule time with it self operational situation.The operational situation of each lathe is expressed with nine kinds of binary signals.Hereinafter, will the signal that output to management devices 134 from lathe 104 be described.Should be noted that lathe 106,110 also transmits similar signal to management devices 134.
Whether the first signal indication lathe 104 of lathe 104 outputs is at processing work.When lathe 104 during just at processing work, first signal output ON.When lathe 104 during not at processing work, first signal output OFF.The secondary signal of lathe 104 outputs represents whether workpiece is installed on the lathe 104.When workpiece is installed to the there, secondary signal output ON.When workpiece is not installed to the there, secondary signal output OFF.Whether the 3rd signal indication lathe 104 of lathe 104 outputs exists abnormal conditions.When lathe 104 has abnormal conditions, the 3rd signal output ON.When lathe 104 does not have abnormal conditions, the 3rd signal output OFF.The 4th signal indication cutter of lathe 104 outputs needs to change.After using particular tool to process the workpiece (as 1000 workpiece) of predetermined quantity on the lathe 104, the 4th signal output ON.After changing cutter, the 4th signal output OFF.The 5th signal indication lathe 104 of lathe 104 outputs is stopped the replacing cutter.When lathe 104 is stopped to change cutter, the 5th signal output ON.In other cases, the 5th signal output OFF.The 6th signal indication workpiece quality check forecast of lathe 104 outputs.Following previous workpiece quality check after the workpiece that processes predetermined quantity on the lathe 104 (as 100 workpiece), the 6th signal output ON.Thereafter, after the quality inspection of workpiece has been carried out, the 6th signal output OFF.The 7th signal indication lathe 104 of lathe 104 outputs stops to carry out the state of quality inspection.When lathe 104 stops to carry out workpiece quality when check, the 7th signal output ON.In other cases, the 7th signal output OFF.Whether the 8th signal indication lathe 104 of lathe 104 outputs is controlled by workman 150 manual operation.When lathe 104 is manually actuated when controlling, the 8th signal output ON.When lathe 104 is not that the 8th signal is exported OFF when being manually actuated control.The 9th signal indication cutter of lathe 104 outputs is polished.The time that cutter is polished is called as milling cycle.If lathe 104 is in milling cycle, the 9th signal is exported ON.In other cases, the 9th signal output OFF.
The running status of management devices 134 centralized management production lines 102.Management devices 134 is equipped with unlimited LAN subbase station 140 and display board 138.Wireless father base station 136 can be individually and the wireless subbase station 118 of lathe 104, the wireless subbase station 120 of lathe 106, wireless subbase station 122 communications of lathe 110.The signal that management devices 134 is accepted from the indication lathe operating state of lathe 104,106,110, and on these basis of signals, control display board 138.Display board 138 is also referred to as " andon ", and the operating state that shows each lathe is to tell the workman who is engaged in production line 102 operation conditions of relevant whole production line 102.WLAN subbase station 140 can with WLAN father base station 142 communications that are connected to network 144.By WLAN subbase station 140 and WLAN father base station 142, management devices 134 can with analytical equipment 146 communications that are connected to network 144.
Fig. 2 has represented the structure of analytical equipment 146.Analytical equipment 146 is equipped with CPU202, communication apparatus 204, memory device 206, operational application device 208, display device 210 and performance curve and generates equipment 212.CPU202 control communication apparatus 204, memory device 206, operational application device 208, display device 210 and performance curve generate equipment 212.Communication apparatus 204 controls are via the communication of network 144 with miscellaneous equipment.Memory device 206 storages can generate the performance curve that equipment 212 generates by curve from the data of communication apparatus 204 inputs, data and the do as one likes that is produced by operational application device 208.Lathe 104,106,108,110 on production line 102 layout and for each lathe, whether it can export the operating state of self as data, all be stored in advance in the memory device 206.Operational application device 208 resembles the operation conditions of analyzing production line 102 described below.Display device 210 is equipped with display, and shows that thus the data from communication apparatus 204 inputs, data and the do as one likes that is produced by operational application device 208 can generate the performance curve that equipment 212 generates by curve.Performance curve generates equipment 212 and carries out performance curve generator program described below.
When management devices 134 was from any one lathe 104,106,110 picked up signal at every turn, management devices 134 all can be delivered to analytical equipment 146 with the signal that obtains.Analytical equipment 146 is stored in the time series data of the output signal of lathe 104,106,110 in the memory device 206.
The routine analyzer of the operation conditions of the relevant production line 102 of analysis that descriptive analysis device 146 is carried out hereinafter.Analytical equipment 146 input lathes 104,106,108,110 on production line 102 deployment scenarios and the information of relevant each lathe, whether be the lathe that the lathe of an energy output data or can not output datas as this lathe.Analytical equipment 146 searches out the data that are stored in the memory device 206, and extracts in the predetermined amount of time of being analyzed (for example, a day) from the time series data of first signal of lathe 104,106,110 acquisitions.On the basis of the time series data that is extracted, analytical equipment 146 is determined the latent period and the process-cycle of lathe 104,106,108,110.
With reference to Fig. 3, will the latent period of each production stage and determining of process-cycle be described.For each lathe 104,106,110 of energy output data, obtained the time series data of first signal (processing signal).To each of these lathes, be decided to be the process-cycle (among Fig. 3, being expressed as " processing ") constantly to corresponding process finishing the zero hour from himself the processing of production stage.The processing zero hour of lathe production stage is determined in the rising of first signal (processing signal) by detecting lathe output constantly.The process finishing that the lathe production stage is determined in the decline of first signal (processing signal) by detecting lathe output constantly constantly.Determined after the process-cycle of lathe that analytical equipment 146 determines that evaluating objects are not included in time period in the process-cycle as latent period in the cycle.Further, for each lathe 104,106,110, determined latent period is divided into two classes, one class is that the lathe wait becomes the possible cycle (being expressed as " waiting for A " in Fig. 3) up to changing the workpiece operation, and another kind of is the cycle (being expressed as " waiting for B " in Fig. 3) that needs the workpiece replacing to operate.As for the classification of latent period, as shown in Figure 3, in the latent period of determining, last till that from the processing of the previous step of this lathe each cycle of corresponding processing zero hour of this step needing to be confirmed as workpiece to change the cycle of operation the zero hour.In analytical equipment 146, not being included in needs workpiece to change latent period in the cycle of operation to be confirmed as lathe and to wait for that changing operation up to workpiece becomes the possible cycle.If at lathe 110, its previous step be can not output data lathe (as, lathe 108), latent period all is divided into lathe and waits for that changing operation up to workpiece becomes the possible cycle.
In order to determine the workpiece processing time in can not the lathe 108 of output data, analytical equipment 146 is set subsequent workpiece in the process-cycle of processing zero hour of previous step (lathe 106) to the duration of specific workpiece between the processing zero hour in back one step (lathe 110) as lathe (lathe 108).Analytical equipment 146 determines that in the cycle that be not included in process-cycle in of evaluating objects in the cycle be the latent period of lathe 108.The latent period of lathe 108 all is divided into lathe and waits for that changing operation up to workpiece becomes the possible cycle (being expressed as " waiting for A " in Fig. 3).In aforementioned manner, analytical equipment 146 is determined the process-cycle and the latent period of lathe 104,106,108,110.
For lathe 104,106,110, can more accurately analyze the operation conditions of each lathe by the signal that uses lathe output.After the process-cycle of having determined each lathe and latent period, analytical equipment 146 uses other signal of lathe output to determine and need get rid of this exception cycle from the exception cycle of latent period or process-cycle eliminating and from latent period and process-cycle.The analytical equipment 146 of present embodiment marks off unusual cycle, cutter changing cycle, quality inspection cycle, manual cycle, milling cycle cycle by way of exception, during unusual cycle lathe has abnormal conditions to occur, during the cutter changing cycle, cutter was replaced, the quality inspection cycle is during checking the processing work quality on the lathe, manually during the cycle workman 150 manual operation lathes, milling cycle is during the cutter of lathe is polished.
For the exception cycle, analytical equipment 146 is treated to the 3rd signal (abnormal signal) of lathe between the anomalistic period of lathe during for ON, and gets rid of between anomalistic period from the process-cycle determined and latent period.
For the cutter changing cycle, analytical equipment 146 with the 5th signal (cutter changing signal) for the ON state during and moment of being upgraded to the ON state from the 8th signal (manual ringing) become the time that moment of ON state continues up to first signal (processing signal) and be treated to the cutter changing cycle, and from the process-cycle determined and latent period, remove such cutter changing cycle.Perhaps, analytical equipment 146 also can with the 4th signal (cutter changing warning signal) for the ON state during and moment of being upgraded to the ON state from the 8th signal (manual ringing) become the time that moment of ON state continues up to first signal (processing signal) and be treated to the cutter changing cycle.
For the quality inspection cycle, analytical equipment 146 with the 7th signal (quality inspection signal) for the ON state during and moment of being upgraded to the ON state from the 8th signal (manual ringing) become the time that moment of ON state continues up to first signal (processing signal) and be treated to the quality inspection cycle, and from the process-cycle determined and latent period, remove such quality inspection cycle.Perhaps, with the 6th signal (quality inspection warning signal) for the ON state during and moment of being upgraded to the ON state from the 8th signal (manual ringing) become the time that moment of ON state continues up to first signal (processing signal) and be treated to the quality inspection cycle.
For the manual cycle, analytical equipment 146 with the 4th signal (cutter changing warning signal), the 5th signal (cutter changing), the 6th signal (quality inspection warning signal) and the 7th signal (quality inspection signal) all be the OFF state and wherein the 8th signal (manual ringing) be treated to the manual cycle during for the ON state, and from the process-cycle determined and latent period, remove so manual cycle.
For milling cycle, analytical equipment 146 is treated to milling cycle with the 9th signal (grinding signal) during for the ON state, and removes such milling cycle from process-cycle and latent period.
In aforementioned manner, analytical equipment 146 has been determined the exception cycle of lathe 104,106,110, and removes such exception cycle from definite process-cycle and latent period.
After cycle, analytical equipment 146 has generated the performance curve of production line 102 in the process-cycle of having determined each procedure of processing, latent period and exception.An example of the performance curve that generates as shown in Figure 4.Performance curve 400 is illustrated in the production performance in the evaluating objects cycle (the average turnaround time of a workpiece of processing).Remove the length in evaluating objects cycle by number pieces, thereby calculate in the production performance of evaluating objects in the cycle with processing on the inherent production line 102 of evaluating objects cycle.The details of the operation conditions of lathe 104,106,108,110 is divided into process-cycle, latent period and exception cycle, and represents with vertical bar 404,406,408,410.In vertical bar 404,406,408,410, process-cycle, latent period and the length in exception cycle are to determine according to the ratio that process-cycle, latent period and the length in exception cycle account for the length in evaluating objects cycle.How many production performances are performance curve 400 expression production lines 102 in fact realized with respect to its target production performance 402.With reference to performance curve 400, can judge whether needs to improve production line 102, if desired, should improve which production stage.With reference to performance curve 400, can grasp the operation conditions of production line 102 at an easy rate.Performance curve 400 is stored in the memory device 206 of analytical equipment 146, and is presented on the display device 210.Analytical equipment 146 can be printed analysis result, the result is stored in the External memory equipment, and the result is sent to outer computer.
Though describe embodiments of the invention above in detail, these embodiment only are schematically, rather than the scope of restriction claim.The technology of Miao Shuing comprises the various modification and the replacement scheme of above-mentioned specific embodiment in the claims.Further, the technology essential factor of describing in instructions or accompanying drawing proposes technical applications individually or with the various array configurations of key element, and the combination of describing in these technology essential factors claim of being not limited to apply for.Further, the technology that exemplifies in instructions or accompanying drawing reaches a plurality of targets simultaneously, and the realization of any one target practicality that still possesses skills.
Claims (10)
1. system (100) that analyzes the operation conditions of production line (102), wherein this production line is made up of two kinds of production stages mixing, a kind of production stage uses the lathe (104,106,110) of the first kind, the data of processing zero hour of one of a plurality of workpiece of this lathe output expression, another kind of production stage uses the lathe (108) of second type, this lathe is not exported the expression data of the processing zero hour one of in a plurality of workpiece, it is characterized in that comprising:
Equipment (206) is used for the data that storage representation production line lathe is arranged;
Equipment (134) is used for obtaining from the first kind lathe data of processing zero hour of expression one of a plurality of workpiece;
Equipment (146) is used for the data of arranging according to the lathe of expression production line and the data of processing zero hour of one of a plurality of workpiece of expression that obtain from first kind lathe, determines the operation conditions of each production stage on production line; With
Equipment (138,210) is used to export the operation conditions of determined each production stage,
The process-cycle of first workpiece in the production stage of the definite use of the wherein definite equipment second type lathe in a plurality of workpiece, processing zero hour of this cycle next workpiece in a plurality of workpiece from the back to back last production stage that uses first kind lathe first workpiece in the back to back back one production step of using first kind lathe processing zero hour till
Determine that wherein equipment determines to use the latent period of the production stage of the second type lathe, till processing zero hour of processing next workpiece of the zero hour in the back to back last production stage that uses first kind lathe of this cycle first workpiece from the back to back back one production step of using first kind lathe.
2. according to the system of the assembly line operation status analysis of claim 1, it is characterized in that,
First kind lathe is also exported the process finishing data constantly of one of a plurality of workpiece of expression;
The described equipment that obtains obtains the data in the process finishing moment of unit one a plurality of workpiece of expression from first kind lathe; And
Described definite equipment determine to use the process-cycle of unit one in the production stage of first kind lathe, processing zero hour of this cycle unit one from the production stage that uses first kind lathe till process finishing constantly,
Described definite equipment determine to use the latent period of the production stage of first kind lathe, and the process finishing of this cycle unit one from the production stage that uses first kind lathe is constantly till processing zero hour of next workpiece.
3. according to the system of the assembly line operation status analysis of claim 1 or 2, it is characterized in that, described definite equipment determine to use the workpiece replacement cycle of the production stage of first kind lathe, processing zero hour of this cycle one of a plurality of workpiece from the back to back last production stage that uses another first kind lathe one of a plurality of workpiece in the production stage that uses first kind lathe processing zero hour till.
4. according to the system of the assembly line operation status analysis of claim 2, it is characterized in that, described definite equipment exports to determine the exception cycle by the prearranged signals that uses first kind lathe, and from process-cycle of the production stage that uses first kind lathe with use the latent period of production stage of first kind lathe and get rid of this exception cycle, so that determine actual process-cycle and actual latent period.
5. according to the system of the assembly line operation status analysis of claim 4, it is characterized in that, the described exception cycle be defined as exporting expression first kind lathe generation abnormal conditions during.
6. according to the system of the assembly line operation status analysis of claim 4, it is characterized in that,
Described first kind lathe is provided with the cutter that is used for processing work, and
The described exception cycle is the cycle that is used for changing at the first kind lathe cutter, the described exception cycle be defined as from output expression first kind lathe stop status signal with status signal that changing its cutter and output expression manual operation first kind lathe till output is illustrated in the status signal of processing work the first kind lathe subsequently during.
7. according to the system of the assembly line operation status analysis of claim 4, it is characterized in that the described exception cycle be defined as from output expression first kind lathe stop with the signal of the status signal of workpiece quality the check first kind lathe or output expression workpiece quality check forecast and output expression carrying out manually operated status signal till output is illustrated in the status signal of processing one of a plurality of workpiece in the first kind lathe subsequently during.
8. according to the system of the assembly line operation status analysis of claim 4, it is characterized in that,
Described first kind lathe is provided with the cutter that is used for processing work, and
The described exception cycle is defined as not exporting following any signal, i.e. forecast is changed the signal of signal, the check of forecast workpiece quality of cutter and expression first kind lathe and is stopped status signal with the examining workpieces quality, and the output expression carrying out manually operated status signal during.
9. according to the system of the assembly line operation status analysis of claim 4, it is characterized in that,
Described first kind lathe is provided with the cutter that is used for processing work, and
The described exception cycle be defined as exporting status signal that the expression cutter grinding during.
10. method of analyzing the operation conditions of production line (102), wherein this production line is made up of two kinds of production stages mixing, a kind of production stage uses the lathe (104,106,110) of the first kind, the data of processing zero hour of one of a plurality of workpiece of this lathe output expression, another kind of production stage uses the second type lathe (108), this lathe is not exported the expression data of the processing zero hour one of in a plurality of workpiece, and this method may further comprise the steps:
The data that lathe is arranged on the storage representation production line;
Obtain the data of processing zero hour of expression one of a plurality of workpiece from first kind lathe;
The data of processing zero hour of one of the data of arranging according to the lathe of expression production line and a plurality of workpiece of expression of obtaining from first kind lathe are determined the operation conditions of each production stage on production line; With
The operation conditions of determined each production stage of output,
Wherein determining step determine to be used the process-cycle of the unit one in a plurality of workpiece in the production stage of the second type lathe, processing zero hour of this cycle next workpiece in a plurality of workpiece from the back to back last production stage that uses first kind lathe next workpiece in the back to back back one production step of using first kind lathe processing zero hour till
Wherein determining step determine to be used the latent period of the production stage of the second type lathe, promptly from the back to back back one production step of using first kind lathe till processing zero hour of processing next workpiece of the zero hour in the back to back last production stage that uses first kind lathe of first workpiece.
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| JP2005285844 | 2005-09-30 | ||
| JP2005285844A JP2007094924A (en) | 2005-09-30 | 2005-09-30 | System for analyzing operational status of production line |
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| CN1940791A true CN1940791A (en) | 2007-04-04 |
| CN100527027C CN100527027C (en) | 2009-08-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727098B (en) * | 2008-10-21 | 2012-01-25 | 中芯国际集成电路制造(上海)有限公司 | Cycle time target measuring method and system |
| CN104781740A (en) * | 2012-07-10 | 2015-07-15 | 马丁丁亚胡·蒂亚诺 | Modular system for real-time evaluation and monitoring of machining production-line overall performances calculated from each given workpiece, tool and machine |
| CN113811908A (en) * | 2019-09-02 | 2021-12-17 | 西门子（中国）有限公司 | Method and device for determining production cycle of production facility |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943908B (en) * | 2010-09-25 | 2011-11-16 | 华中科技大学 | Wireless Andon system |
| JP2016091654A (en) * | 2014-10-30 | 2016-05-23 | 東京エレクトロン株式会社 | Plasma processing apparatus |
| EP3557351B1 (en) * | 2018-04-20 | 2020-12-09 | Rittal GmbH & Co. KG | System and method for assembling a modular control cabinet feature |
| JP7558636B2 (en) | 2018-12-05 | 2024-10-01 | Juki株式会社 | Surveillance system |
| JP7421907B2 (en) * | 2019-11-07 | 2024-01-25 | 株式会社アマダ | Machine tool operating status management device, operating status management method, and operating status management program |
-
2005
- 2005-09-30 JP JP2005285844A patent/JP2007094924A/en active Pending
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727098B (en) * | 2008-10-21 | 2012-01-25 | 中芯国际集成电路制造(上海)有限公司 | Cycle time target measuring method and system |
| CN104781740A (en) * | 2012-07-10 | 2015-07-15 | 马丁丁亚胡·蒂亚诺 | Modular system for real-time evaluation and monitoring of machining production-line overall performances calculated from each given workpiece, tool and machine |
| CN113811908A (en) * | 2019-09-02 | 2021-12-17 | 西门子（中国）有限公司 | Method and device for determining production cycle of production facility |
Also Published As
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| JP2007094924A (en) | 2007-04-12 |
| CN100527027C (en) | 2009-08-12 |
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