JP4033666B2 - Automatic fillet correction processing method of lens and automatic fillet correction processing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention is applied to a lens processing line that automatically performs lens generator supply (hereinafter abbreviated as CG processing) and fine grinding processing, and subsequent grinding processing, or an automatic processing machine that performs fine grinding processing. The present invention relates to an automatic fillet correction processing method and automatic fillet correction processing apparatus for a lens.
[0002]
[Prior art]
As conventional techniques, the following processing methods and apparatuses using the same are disclosed.
(1) CG machining workpiece axis feed compensation
[0003]
FIG. 6 is a flowchart showing a conventional processing procedure disclosed in Japanese Patent Laid-Open No. 2000-176811. In this processing procedure, the lens material supply (S100) to the CG processing (S101) process and the fine grinding process (S102) process are automatically performed, and after the fine grinding process (S102) process, the medium thickness measurement (S103) process is performed. The feed of the workpiece axis of CG processing and fine grinding is adjusted by calculation (S104) using the meat measurement value.
[0004]
The correction method in this case is to correct the feed of the workpiece axis of CG processing by calculating the difference between the target medium thickness value and the medium thickness measurement value of the lens after the fine grinding (S102) step. .
(2) Precision grinding processing speed calculation
[0005]
FIG. 7 is a flowchart showing another example of the conventional processing procedure disclosed in Japanese Patent Application Laid-Open No. 2000-176811.
[0006]
This processing procedure is based on the measured values in the lens thickness measurement (S112) process after the CG processing (S111) process from the lens material supply (S110) process, and the processing speed when the preceding fine grinding is performed before that. The processing time is calculated from the above, and the precision grinding process (S114) of the lens is performed with the calculated processing time, and the measured value of the lens thickness measurement (S115) for which the precision grinding process (S114) is completed, The machining allowance calculation (S113) is performed from the difference in thickness before and after the fine grinding in the previous stage, the machining speed calculation (S116) is performed from the derived machining allowance and the calculated machining time, and the machining speed is refined next time. This is the processing speed when calculating the processing time of the lens to be ground.
[0007]
[Problems to be solved by the invention]
In the above-described prior art, the workpiece feed of CG processing is corrected using the measured value of the thickness after CG processing and the measured value of the thickness after fine grinding, or the measured value of the thickness after CG processing is used. To calculate the processing speed of precision grinding. Thus, it is necessary to use the measured values of the contents after the CG processing and the fine grinding processing in pairs.
[0008]
In this case, the measurement of the contents and the calculation using it are performed automatically, but there are cases where it is desired to verify the surface accuracy and shape of the lens after CG processing with a separate measuring instrument or microscope at regular intervals or randomly. In this case, it is necessary to extract the lens from the line after CG processing.
[0009]
However, if a lens is extracted from the line after CG processing, the next lens passes through the CG processing and fine grinding process, and then the extracted lens is returned to resume the fine grinding process, which is a subsequent process for the lens. In many cases, the above calculation is distorted.
[0010]
In addition, in order to avoid such a situation, there is a measure to stop the line while removing the lens so that the next lens is not supplied, but in this case, the cycle time is greatly lost. .
[0011]
The present invention has been made in view of the above circumstances. In the CG machining process and the precision grinding process, the lens is discriminated, and data necessary for calculation is individually stored and used for each lens. A lens that can perform accurate calculations regardless of the lens transport sequence to the process, and eliminates the calculation error caused by the extraction of the lens after CG processing and the loss of cycle time due to the line stop to avoid it. An object of the present invention is to provide an automatic fillet correction processing method and an automatic fillet correction processing apparatus.
[0012]
[Means for Solving the Problems]
  The invention according to claim 1 includes a step of measuring the inner thickness of the lens after finishing the curve generator processing step, a step of measuring the inner thickness of the lens after finishing the fine grinding processing step, and measuring each measured inner thickness value. A method for automatically correcting the thickness of a lens, including a step of adjusting a workpiece axis feed for the curve generator machining and the fine grinding using the calculation result. A first discriminating step for individually discriminating supplied lenses, a second discriminating step for individually discriminating lenses supplied to the fine grinding step, and the fine grinding processing from the curve generator processing step. Of the lens leading to the processDuring transport processThe lens inTo verifyCan be arbitrarily extractedSampling for verificationEach of the measured values measured in the step and the step of measuring the thickness after the curve generator processing step is stored in association with the lens determined in the first determination step. A second storage unit that stores the measured middle thickness value measured in the measuring step after the precision grinding process in association with the lens determined in the second determining step. Memory process;In the verification sampling processReturn the extracted lens to the precision grinding process.ReturnAnd comprising the stepsIn the sampling process for verificationRemove the lensIn the return processWhen returned to the precision grinding process, the lens was individually identified by the second identification process, and the measurement was performed in the step of measuring the thickness after the precision grinding process. The medium thickness measurement value is stored in the second storage step in association with the determined lens.
[0013]
  According to the first aspect of the present invention, the lens supplied in each process of the processing line is individually identified, and each measured value of the inner thickness measured in each process of measuring the inner thickness corresponds to each determined lens. In addition, since the process of adding and storing individually is added, it is possible to perform necessary calculations using the data of the measured values of the contents associated with each lens, and the processing order of each lens between each process Even in the case of replacement, smooth and accurate calculation can be performed, and adjustment of the workpiece axis feed of the curve generator machining and fine grinding can be executed using a calculation result without error. Accordingly, the lens can be freely extracted without stopping the processing line.
[0014]
  The invention according to claim 2 is characterized in that a lens to be processed is placed on the processing line, a supply position to the curve generator processing unit, a discharge position from the curve generator processing unit,For verificationSamplingAnd returnThe lens transport unit prepared for each lens and the processing line are arranged so that they are transported in the order of the area, the supply position to the precision grinding part, and the discharge position from the precision grinding part. A curve generator processing unit that performs curve generator processing on the lens, a curve generator measurement unit that measures the inside of the lens after the curve generator processing,Extraction and return area for verification for extracting the lens after the curve generator processing provided between the curve generator processing portion and the fine grinding processing portion, and returning the extracted verification lens to the processing line,The curve generator measuring unit and the fine grinding measuring unit include a fine grinding processing unit that performs fine grinding on a lens that has been subjected to curve generator processing, and a fine grinding measuring unit that performs measurement of the inner thickness of the lens that has undergone fine grinding. An automatic fillet correction processing device that performs calculations using the measured values of each of the fillets measured in step 1, and adjusts the work axis feed of the curve generator machining and fine grinding using the calculation results, A lens storage unit mounted on the conveyance unit and for storing lens discrimination data, and provided at a supply position to the curve generator processing unit, and the lens discrimination from the storage unit mounted on the lens conveyance unit. A first reading unit for reading data for use, and a lens discriminating unit that is provided at a supply position to the fine grinding processing unit and that is mounted on the lens conveying unit. Data for lens discrimination obtained by reading the measured values of the contents measured by the second reading unit for reading the data, the curve generator measuring unit, and the fine grinding measuring unit by the first and second reading units. A data storage / calculation unit that stores each of the measured values of the inside meat in association with each of the measured values, and includes a data storage / calculation unit,Verification sampling and returnThe lens conveyance unit including the lens once extracted in an area is supplied and conveyed to the precision grinding processing unit.Verification sampling and returnWhen returning to the area, the lens is individually discriminated by the second reading unit, and the median measured value measured by the fine grinding measuring unit for measuring the median thickness after the fine grinding is discriminated. The data storage / calculation unit separately stores the data in association with the lens, and the calculation using each of the measured values of the inner wall is executed.
[0015]
  The invention according to claim 3 is a process of placing a lens to be processed on the processing line, a supply position to the curve generator processing unit, a discharge position from the curve generator processing unit,Verification sampling and returnPrepared for each lens so that it is transported in the order of area, supply position to precision grinding part, and discharge position from precision grinding partlensA transport section;SaidA curve generator processing unit that performs curve generator processing on the lens arranged facing each processing line, a curve generator measurement unit that measures the inside of the lens after the curve generator processing,Extraction and return area for verification for extracting the lens after the curve generator processing provided between the curve generator processing portion and the fine grinding processing portion, and returning the extracted verification lens to the processing line,The curve generator measuring unit and the fine grinding measuring unit include a fine grinding processing unit that performs fine grinding on a lens that has been subjected to curve generator processing, and a fine grinding measuring unit that performs measurement of the inner thickness of the lens that has undergone fine grinding. An automatic fillet correction processing device that performs calculations using the measured values of each of the fillets measured in step 1, and adjusts the work axis feed of the curve generator machining and fine grinding using the calculation results, A storage unit mounted on the conveyance unit and capable of storing data; provided at a discharge position from the curve generator processing unit; and the lens discrimination data to the storage unit mounted on the lens conveyance unit; A writing unit for writing the measured value of the medium thickness measured by the curve generator measuring unit, and a supply position to the precision grinding processing unit, which is mounted on the lens conveying unit A reading unit for reading the lens discrimination data and the fillet measurement value from the storage unit, and the lens discrimination data read by the reading unit and the fillet measurement value measured by the curve generator measurement unit; , A data storage for individually storing the measured thickness values measured by the precision grinding measuring unit in association with the lens discrimination data by the reading unit and executing calculations using the measured thickness values A calculation unit,Verification sampling and returnThe lens conveyance unit including the lens once extracted in an area is supplied and conveyed to the precision grinding processing unit.Verification sampling and returnWhen returning to the area, the lens is individually discriminated by the reading unit, and the measured value of the inner thickness measured by the fine grinding measuring unit for measuring the inner thickness after the fine grinding is measured by the curve generator measurement. Along with the measured content value measured by the unit, the data storage / calculating unit individually stores it in association with the discriminated lens, and executes the calculation using each measured content value. It is.
[0016]
  The invention according to claim 4 is the claim of claim2In the automatic lens thickness correction processing apparatus for a lens according to the description, the data storage / calculation unit is connected to the curve generator measurement unit, the fine grinding measurement unit, and the reading unit via a data transmission network. It is characterized by being incorporated in.
[0017]
  Claim2According to the invention described in 4, the lens discrimination data stored in the storage unit incorporated in the lens transport unit on the processing line is read by the reading unit, and the curve generator measuring unit and the fine grinding measuring unit are used. Each measured internal measurement value is stored in the data storage / calculation unit individually in association with each lens discrimination data read by the reading unit, Necessary calculation can be performed using the data of the measured value of the inner wall associated with the lens, and even if the processing order of individual lenses is changed, smooth and accurate calculation can be performed without stopping the processing line. It is possible to provide an automatic lens wall thickness correction processing apparatus for a lens that can adjust the feed of the workpiece axis in the curve generator processing and the fine grinding processing using a calculation result without error. In addition, since the data storage / calculation unit is configured to be incorporated in a computer device connected to the curve generator measurement unit, the fine grinding measurement unit, and the reading unit via a network that performs data transmission, the lens Even at locations away from the machining site, it is possible to check the measured values and calculation results of the individual lenses processed by this automatic fill correction processing apparatus.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail.
[0019]
    (Embodiment 1)
(Constitution)
  In the automatic lens thickness correction processing apparatus shown in FIG. 1, a lens transport pallet 5a serving as a lens transport section on which an ID carrier 6a serving as a storage section is mounted, and a lens transport pallet 5b serving as a lens transport section on which an ID carrier 6b is mounted. In addition, in order of the CG supply position 11a-CG discharge position 11b by the conveyor 9 constituting each processing line,Verification sampling and returnThrough the area 10, the fine grinding is supplied in the order of the fine grinding supply position 12a and the fine grinding discharge position 12b.
[0020]
  That is, the lens 4a is conveyed by the lens conveying pallet 5a, and the lens 4b is conveyed by the lens conveying pallet 5b to the CG supply position 11a, the CG discharge position 11b, the fine grinding supply position 12a, and the fine grinding discharge position 12b. At the position, the CG supply hand 3a supplies and discharges the CG processing unit 1a and the CG measurement unit 2a, and the fine grinding supply hand 3b supplies and discharges the fine grinding processing unit 1b and the fine grinding measurement unit 2b.
  The verification sampling and return area 10 is arranged between the CG discharge position 11b and the fine grinding supply position 12 of the conveyor 9 between the CG processing portion 1a and the fine grinding processing portion 1b. Then, the lens 4a after CG processing is arbitrarily extracted from the conveyor 9 as a processing line, and the surface accuracy and shape of the lens after CG processing are verified with a separate measuring instrument, microscope, etc. The verified lens 4a and the like are returned to the conveyor 9.
[0021]
There are 20 lens transport pallets 5a and 5b, and different lenses 4a or 4b are mounted on each. In the vicinity of the CG supply position 11a, the ID reader 7a, which is a reading unit, is similarly precisely located at a position where the data of the ID carrier 6a in the lens conveyance pallet 5a and the ID carrier 6b in the lens conveyance pallet 5b can be read. An ID reader 7b as a reading unit is attached in the vicinity of the grinding supply position 12a.
[0022]
Furthermore, the ID data read by the ID reader 7a and ID reader 7b, the CG measuring unit 2a, the CG medium measurement data measured by the fine grinding measuring unit 2b, the fine grinding measurement data, and other condition data necessary for processing are stored. In addition, a data storage / arithmetic device 8 having a function for calculating is incorporated in the device.
[0023]
(Function)
In FIG. 1, ‘1’ and ‘3’ are stored in the ID carriers 6a and 6b out of 1 to 20 for each of the lens transport pallets 5a and 5b. First, the lens transport pallet 5a in which the ID number "1" is stored in the ID carrier 6a is loaded with the lens 4a and reaches the CG supply position 11a by the conveyor 9, and the conveyor 9 stops.
[0024]
Next, the lens 4a is supplied to the CG processing unit 1a by the CG supply hand 3a, and at the same time, the ID reader 7a reads the ID number '1 of the ID carrier 6a, and as shown in FIG. Stored as an ID number during the current CG processing step.
[0025]
After the CG processing of the lens 4a by the CG processing unit 1a, the inside of the lens 4a is measured by the CG measuring unit 2a, and the CG inside measurement data a1 is assigned to the ID number “1” of the data storage / calculation device 8. Store in the area. At the same time, in order to prevent the lens 4a from being defective in the trial processing in the CG processing unit 1a, the amount of the upper stacking b1 when the target inner thickness is forcibly set thick is also assigned to the ID number “1” of the data storage / calculation device 8 Store in the specified area.
[0026]
  Next, the lens 4a is discharged from the CG discharge position 11b and placed on the lens transport pallet 5a in which the ID number "1" is stored.Verification sampling and returnWhen you reach area 10For verificationThe lens conveyance pallet 5a is extracted.
[0027]
Next, when the lens transport pallet 5b with the ID number “3” is supplied to the CG supply position 11a, the ID reader 7a reads the ID number “3” as in the case of the CG processing of the lens 4a. The medium thickness measurement data a3 and the medium meat pile amount b3 measured by the measuring unit 2a are stored in the area assigned to the ID number “3” of the data storage / calculation device 8. The same applies to other ID numbers. FIG. 2 shows the relationship between the ID numbers of the lenses 4a, 4b, etc. and the stored data corresponding to each.
[0028]
Subsequently, when the lens transport pallet 5b with the ID number “3” passes through the extraction area 10 through the CG discharge position 11b and reaches the fine grinding supply position 12a, the lens 4b is moved by the fine grinding supply hand 3b. At the same time, the ID reader 7b reads the ID number '3' of the ID carrier 6b and stores it in the data storage / calculation device 8 as the ID number currently in the fine grinding process.
[0029]
Further, after the fine grinding of the lens 4b, the fine grinding measuring unit 2b performs the fine grinding middle thickness measurement, and the fine grinding middle thickness measurement data c3 is assigned to the ID number “3” of the data storage / calculation device 8. To remember.
[0030]
Using this fine grinding measurement data c3 and the CG measurement data a3 stored in the area assigned to the ID number “3”, the precision grinding processing speed calculation described in the prior art by the data storage / calculation device 8 is also performed. And CG machining workpiece axis feed correction.
[0031]
When the amount of medium top stacked b3 is not zero, the calculation is performed by subtracting the amount of medium top stacked b3 from the measured CG medium measured data a3 and the fine ground measured data c3.
[0032]
  afterwards,Verification sampling and returnThe lens transport pallet 5a extracted in the area 10 isVerification sampling and returnArea 10On the conveyor 9 as a processing lineWhen the precision grinding supply position 12a is reached, the precision grinding supply hand 3b supplies the lens 4a to the precision grinding processing portion 1b. At the same time, the ID reader 7b reads the ID number '1 of the ID carrier 6a to store the data. It is stored in the arithmetic unit 8 as an ID number in the current precise grinding process.
[0033]
Then, the fine grinding of the lens 4a by the fine grinding unit 1b and the fine grinding mid-measuring by the fine grinding measuring unit 2b are performed, and the CG medium thickness measurement data a1, the fine grinding mid-mesh measurement data c1 and the middle meat top amount b1 are obtained. The same calculation as that described for the lens 4a is performed.
[0034]
(effect)
In the first embodiment, the lens 4a having the ID number “1” and the lens 4b having the ID number “3” are provided with respective data storage areas, so that the lenses 4a and 4b reach in the CG process and the fine grinding process. Even if the order is different, the calculation can be performed with the data corresponding to the ID number, and there is no contradiction in the calculation result.
[0035]
(Embodiment 2)
(Constitution)
A second embodiment of the present invention will be described with reference to FIG. In the second embodiment, the basic configuration is the same as in the first embodiment, but an ID writer 7c having a data writing function for the ID carriers 6a and 6b is provided at the CG discharge position 11b. It is. Other configurations are the same as those of the first embodiment.
[0036]
    (Function)
  In the second embodiment, as shown in FIG. 3, the lens 4a is supplied to the CG processing unit 1a by the same operation as in the first embodiment, and after the CG processing, the CG measuring unit 2a measures the CG contents. . Thereafter, when the lens 4a is discharged from the CG discharge position 11b, the CG medium thickness measurement data a1 measured by the CG measuring unit 2a and the above-mentioned inner wall amount b1 are written to the ID carrier 6a by the ID writer 7c. The lens transport pallet 5a places the lens 4a.Verification sampling and returnWhen the area 10 is reached, the entire lens transport pallet 5a is extracted.
[0037]
Next, the subsequent lens 4b is supplied to the CG processing unit 1a, and after the CG processing, the CG measuring unit 2a performs CG medium thickness measurement. Further, similarly to the case of the lens 4a, the CG fillet measurement data a2 and the fillet amount b2 are written to the ID carrier 6b by the ID writer 7c.
[0038]
Next, the lens reader 4b supplies the CG medium thickness measurement data a2 and the medium thickness upper stacking amount b2 stored in the ID carrier 6b at the same time as the lens 4b is supplied to the precision grinding processing unit 1b by the same operation as in the first embodiment. The data is read and stored in the data storage / arithmetic unit 8. Further, after the fine grinding by the fine grinding processing unit 1b, the fine grinding measuring unit 2b performs the fine grinding in-measuring measurement and stores the fine grinding in-measuring measurement data c2 in the data storage / calculation device 8.
[0039]
Using the fine grinding mid-measurement data c2, the CG fillet measurement data a2 stored in the data storage / calculation device 8, and the overfill amount b2 in the data storage / calculation device 8, the data storage / calculation device 8 uses the lens 4b according to the first embodiment. The same calculation is performed.
[0040]
  afterwards,Verification sampling and returnThe lens transport pallet 5a extracted in the area 10 isVerification sampling and returnArea 10On the conveyor 9Then, the ID reader 7b supplies the CG medium thickness measurement data a1 and the intermediate meat top amount b1 stored in the ID carrier 6a at the same time as the lens 4a is supplied to the precision grinding unit 1b by the same operation as in the first embodiment. The data is read and stored in the data storage / arithmetic unit 8. After the fine grinding process, the fine grinding medium measurement is performed by the fine grinding measurement 1b, and the fine grinding medium measurement data c1 is obtained, and this fine grinding medium measurement data c2, the CG medium measurement data a1, and the overfill amount of the medium are obtained. Using b1, the data storage / arithmetic unit 8 performs the same calculation as in the first embodiment regarding the lens 4a.
[0041]
(effect)
In the second embodiment, lens-specific data can be stored in the ID carriers 6a and 6b of the lens supply pallets 5a and 5b, and the stored data in the data storage / calculation device 8 is erroneously overwritten. Therefore, it is possible to perform a more reliable calculation.
[0042]
(Embodiment 3)
(Constitution)
A third embodiment of the present invention will be described with reference to FIG. In the second embodiment, the basic configuration is the same as in the first embodiment, but barcodes 6a1 and 6b1 are attached to the lens transport pallets 5a and 5b in place of the ID carriers 6a and 6b, respectively. The bar code reader 7a1 is arranged at the CG supply position 11a, the bar code reader 7b1 is arranged at the fine grinding supply position 12a, and the data storage / calculation apparatus 8 incorporated in the apparatus according to the first embodiment. Instead of this, a computer device 8A incorporating a data storage / arithmetic device 8 for remotely managing this device is connected by a network (communication line) N. Other configurations are the same as those of the first embodiment.
[0043]
(Function)
In the third embodiment, barcodes representing “1” and “3” of 1 to 20 are attached to the lens conveyance pallets 5a and 5b on the barcodes 6a1 and 6b1, respectively.
[0044]
The lens 4a on the lens transport pallet 5a is supplied to the CG processing unit 1a in the same procedure as in the first embodiment, and at the same time, the data “1” of the barcode 6a1 is read by the barcode reader 7a1 and stored in the data storage / calculation device 8. Recognized as a data number in the current CG machining process. After the CG processing by the CG processing unit 1a, the CG measuring unit 2a performs the CG meat measurement, and stores the CG meat measurement data a1 in the area assigned to the data number "1" of the data storage / arithmetic unit 8.
[0045]
Further, the same amount b1 of the top meat as in the case of the first embodiment is stored in the area assigned to the data number “1” of the data storage / calculation device 8.
[0046]
  Next, the lens 4a is discharged from the CG discharge position 11b and placed on the lens conveyance pallet 5a with the barcode "1".Verification sampling and returnWhen the area 10 is reached, the entire lens transport pallet 5a is extracted.
[0047]
Next, the lens conveyance pallet 5b with the barcode “3” is supplied to the CG supply position 11a, and the barcode reader 7a1 reads the barcode “3” in the same manner as described above, and the CG medium thickness measurement data a3 and The meat stacking amount b3 is stored in the area assigned to the data number “3” of the data storage / arithmetic unit 8 incorporated in the computer device 8A. The same applies to other barcodes to be processed subsequently. FIG. 5 shows the relationship between the data number of each barcode and the corresponding stored data.
[0048]
  Subsequently, the lens transport pallet 5b with the barcode '3'Verification sampling and returnAfter passing through the area 10 and reaching the precision grinding supply position 12a, the lens 4b is supplied to the precision grinding processing part 1b by the precision grinding supply hand 3b, and at the same time, the data '3' of the barcode 6b1 is read by the barcode reader 7b. Data is stored in the data storage / calculation device 8 as a data number currently in the precision grinding process.
[0049]
After the fine grinding process, the fine grinding measuring unit 2b performs the fine grinding middle meat measurement, and stores the fine grinding middle meat measurement data c3 in the area assigned to the data number "3" of the data storage / calculation device 8.
[0050]
Using this fine grinding middle measurement data c3 and the CG medium thickness measurement data a3 and the middle meat stacking amount data b3 stored in the area assigned to the data number '3', the data storage / calculation device 8 performs the embodiment. The same calculation as 1 is performed.
[0051]
  afterwards,Verification sampling and returnThe lens transport pallet 5a extracted in the area 10 isVerification sampling and returnArea 10On the conveyor 9When the lens transport pallet 5a reaches the precision grinding supply position 12a, the lens 4a is supplied to the precision grinding processing part 1b by the precision grinding supply hand 3b, and at the same time, the barcode reader 7b1 receives the data '1, 1 of the barcode 6a1. The data is read and stored in the data storage / arithmetic unit 8 as a data number in the current precise grinding process. Further, fine grinding and medium thickness measurement are performed, and the same calculation as described above is performed using the CG medium thickness measurement data a1, the medium thickness overload b1, and the fine grinding medium thickness measurement data c1.
[0052]
(effect)
In the third embodiment, in addition to the same effects as those of the first embodiment described above, the data storage / arithmetic unit 8 incorporating the data in the computer device 8A recognizes it via the network N. There is an effect that it is possible to confirm the measured values of the contents of 4a, 4b, etc. and the processing status on the computer device 8A arranged at a location away from the automatic medium thickness correcting device.
[0053]
【The invention's effect】
  As described above, according to the present invention, smooth and accurate calculation is performed even when the processing order of individual lenses is switched between processes, and curve generator processing and fine grinding are performed using a calculation result without error. Executes adjustment of workpiece axis feed for machiningCanIt is possible to provide an automatic fillet correction processing method for a lens.
[0054]
Further, according to the present invention, when the data storage / calculation unit can perform necessary calculations using the data of the measured values of the contents associated with the individual lenses, the processing order of the individual lenses is switched. Can be performed smoothly and accurately, and the adjustment of the work axis of the curve generator machining and fine grinding can be adjusted without stopping the processing line and using the correct calculation results. It is possible to provide an automatic lens thickness correction processing apparatus for a lens that can check the measured value of the thickness of each lens processed by this apparatus and the calculation result even at a location away from the lens.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an automatic fillet correction processing apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a table showing a relationship between a barcode data number and stored data corresponding to the barcode data number according to the first embodiment of the present invention;
FIG. 3 is a schematic configuration diagram of an automatic fillet correction processing apparatus according to Embodiment 2 of the present invention.
FIG. 4 is a schematic configuration diagram of an automatic fillet correction processing apparatus according to Embodiment 3 of the present invention.
FIG. 5 is a table showing a relationship between a barcode data number and stored data corresponding to the barcode data number according to the third embodiment of the present invention;
FIG. 6 is a flowchart showing a processing procedure including a conventional content correction operation.
FIG. 7 is a flowchart showing a processing procedure including a processing speed calculation in a conventional fine grinding step.
[Explanation of symbols]
  1a CG processing part
  1b Precision grinding part
  2a CG measurement unit
  2b Precision grinding measuring unit
  3a CG supply hand
  3b Precision grinding supply hand
  4a lens
  4b lens
  5a Lens transport pallet
  5b Lens transport pallet
  6a ID carrier
  6a1 barcode
  6b ID carrier
  6b1 barcode
  7a ID reader
  7a1 Barcode reader
  7b ID reader
  7b1 barcode reader
  7c ID writer
  8 Data storage and calculation device
  8A Computer device
  9 Conveyor
  10 Verification sampling and return area
  11a CG supply position
  11b CG discharge position
  12a Fine grinding supply position
  12b Fine grinding discharge position
  N network

Claims (4)

The process of measuring the lens thickness after finishing the curve generator machining process, the process of measuring the lens thickness after finishing the precision grinding process, and the calculation using each measured thickness measurement value. A method for automatically correcting the thickness of a lens, including the step of adjusting the feed of the workpiece axis of the curve generator processing and the fine grinding processing using
A first discriminating step for individually discriminating lenses supplied to the curve generator processing step;
A second determination step of individually determining lenses supplied to the fine grinding step;
A verification sampling step that allows arbitrary extraction in order to verify the lens in the lens conveyance step from the curve generator processing step to the precision grinding step;
A first storage step of individually storing each measured value of the inner thickness measured in the step of measuring the inner thickness after the curve generator processing step in association with the lens determined in the first determination step; ,
A second storage step of individually storing the measured thickness value measured in the step of measuring the thickness after the precision grinding step in association with the lens determined in the second determining step;
And-return step of returning the lens withdrawn by the verification sampling step as is conveyed to the fine grinding process,
Have
When returning the lens withdrawn by the verification sampling step as is conveyed to the fine grinding process at the refunded step is to determine the lens individually by the second determination step, the Automatic fillet correction of a lens, characterized in that the fillet measurement value measured in the fillet measurement step after the precision grinding process is stored in the second storage step in association with the discriminated lens. Processing method. Place the lens to be processed on the processing line, supply position to the curve generator processing section, discharge position from the curve generator processing section, verification sampling and return area, supply position to the precision grinding processing section, precision A lens transport section prepared for each lens so that it is transported in the order of the discharge position from the grinding section;
A curve generator processing unit that performs curve generator processing on the lens arranged so as to face each processing line, a curve generator measurement unit that measures the inside of the lens after the curve generator processing , the curve generator processing unit and fine grinding processing Extracted to verify the lens after processing the curve generator provided between the parts, and the sampling and return area for verification to return the lens after sampling to the processing line, and fine grinding processing for the lens after the curve generator processing A precision grinding processing unit to perform, and a precision grinding measurement unit to measure the inside thickness of the lens after finishing the precision grinding processing,
Automatic calculation that uses the measured values of each medium measured by the curve generator measurement unit and the fine grinding measurement unit, and adjusts the workpiece axis feed for the curve generator machining and fine grinding using the calculation results. A meat correction device,
A storage unit that is mounted on the lens transport unit and stores lens discrimination data;
A first reading unit which is provided at a supply position to the curve generator processing unit and reads the lens discrimination data from the storage unit mounted on the lens transport unit;
A second reading unit that is provided at a supply position to the precision grinding unit and reads the lens discrimination data from the storage unit mounted on the lens transport unit;
Each fillet measurement value measured by the curve generator measurement unit and the fine grinding measurement unit is individually stored in association with each lens discrimination data read by the first and second reading units, and A data storage / arithmetic unit that performs computations using the measured values of each meat,
With
When the back of the lens transport section including once the lens withdrawn by verification sampling and refunded area to the verification sampling and refunded area to supply conveyed to the fine grinding section, said first The data is stored in correspondence with the determined lens by measuring the thickness measured by the precision grinding measuring unit that individually measures the lens by the reading unit 2 and performs the measurement of the thickness after the precision grinding. An automatic lens correction processing apparatus for a lens, characterized in that it is stored individually by a calculation unit and performs a calculation using each of the measured values of the thickness. Place the lens to be processed on the processing line, supply position to the curve generator processing section, discharge position from the curve generator processing section, verification sampling and return area, supply position to the precision grinding processing section, precision A lens transport section prepared for each lens so that it is transported in the order of the discharge position from the grinding section;
A curve generator processing unit that performs curve generator processing on the lens arranged so as to face each processing line, a curve generator measurement unit that measures the inside of the lens after the curve generator processing , the curve generator processing unit and fine grinding processing Extraction to verify the lens after processing the curve generator provided between the parts, and the sampling and return area for verification to return the lens after extraction to the processing line, and fine grinding processing for the lens after the curve generator processing A precision grinding processing unit to perform, and a precision grinding measurement unit to measure the inside thickness of the lens after finishing the precision grinding processing,
Automatic calculation that uses the measured values of each medium measured by the curve generator measurement unit and the fine grinding measurement unit, and adjusts the workpiece axis feed for the curve generator machining and fine grinding using the calculation results. A meat correction device,
A storage unit mounted on the lens transport unit and capable of storing data;
A document which is provided at a discharge position from the curve generator processing unit and writes the lens discrimination data and the measured thickness value measured by the curve generator measurement unit to the storage unit mounted on the lens transport unit. And
A reading unit that is provided at a supply position to the precision grinding unit, and that reads the lens discrimination data and the thickness measurement value from the storage unit mounted on the lens transport unit;
The lens discrimination data read by the reading unit, the measured thickness value measured by the curve generator measurement unit, and the measured thickness value measured by the precision grinding measurement unit are used for lens discrimination by the reading unit. A data storage / calculation unit that individually stores the data in association with each other and executes a calculation using each of the measured contents of the meat,
With
When said said lens conveying section including a temporarily withdrawn said lens at verification sampling and refunded area back to the verification sampling and refunded area to supply conveyed to the fine grinding section, the reading The lens is individually discriminated by the unit, and the thickness measurement value measured by the precision grinding measurement unit for measuring the thickness after the precision grinding is combined with the median thickness measurement value measured by the curve generator measurement unit. An automatic lens correction processing apparatus for a lens, characterized in that it is stored in association with the discriminated lens individually by the data storage / calculation unit and performs an operation using the measured values of each of the contents.   3. The data storage / calculation unit is incorporated in a computer device connected to the curve generator measurement unit, the fine grinding measurement unit, and the reading unit via a network that performs data transmission. Automatic fillet correction processing device for the described lens.

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