WO2014073465A1

WO2014073465A1 - Lens-finishing system, finished size management device, finished size management method and eyeglass lens manufacturing method

Info

Publication number: WO2014073465A1
Application number: PCT/JP2013/079668
Authority: WO
Inventors: 喬弘鈴江; 大丸　孝司
Original assignee: Hoya株式会社
Priority date: 2012-11-06
Filing date: 2013-11-01
Publication date: 2014-05-15
Also published as: CN104768709A; EP2926950A4; JP2014091202A; US20150290762A1; CN104768709B; EP2926950A1; JP5972759B2

Abstract

A lens-finishing system provided with multiple finishing machines (10) for lens shape processing of eyeglass lenses and a finished size management device (30) that is used by being connected to same. In the lens-finishing system, the finished size management device (30) is provided with a storage means (33) for storing and holding, for each kind of finishing machine (10), information relating to the finishing properties of the finishing machine (10) correlated with type of lens material and type of finishing tool. The information that the storage means (33) stores and holds is information obtained with at least one of multiple finishing machines (10). Finishing machines (10) of the same type as the at-least-one machine are provided with a correction means (12) for correcting, when finishing using said finishing machine (10), the finishing parameters for the finishing on the basis of the information stored and held by the storage means (33).

Description

Lens processing system, processing size management device, processing size management method, and spectacle lens manufacturing method

The present invention relates to a lens processing system, a processing size management device, a processing size management method, and a spectacle lens manufacturing method used for processing a lens shape of a spectacle lens.

A processing machine that performs eyeglass processing of spectacle lenses targets a plurality of types of lens materials, and selectively uses a plurality of types of processing tools for the target lens materials. What you do is common. And in this kind of processing machine, the size adjustment of a process is performed as a pre-process before performing a target lens shape process. The size adjustment for processing is within the allowable range for the difference between the actual size of the spectacle lens after the target lens processing and the desired size (for example, an allowable value specified in advance so that the spectacle lens can be inserted into the spectacle frame without any problem) The following is performed for each of various lens materials to be processed and various processing tools used for the processing at a predetermined stage such as when the apparatus is introduced or when the tool is replaced. Specifically, as the size adjustment of the processing, for example, an inter-axis distance adjustment between the rotation axis of the lens material and the rotation axis of the processing tool is performed (for example, see Patent Document 1).

Japanese Patent No. 4772342

However, conventionally, when the size adjustment of the processing as described above is performed, it is necessary to perform the size adjustment individually for all types of lens materials to be processed for each processing tool used by the processing machine. It was. Therefore, for example, when constructing a lens processing system including a plurality of processing machines in a processing center for spectacle lenses, it is necessary to adjust the size of each of the plurality of processing machines, and much time is required for the size adjustment. I need it. Therefore, particularly when there are a plurality of processing machines, simplification of labor for size adjustment in each processing machine is strongly demanded.

The present invention relates to a lens processing system, a processing size management apparatus, a processing size management method, and a spectacle lens manufacturing method capable of simplifying the process of adjusting the processing size for each processing machine when there are a plurality of processing machines. The purpose is to provide.

The present invention has been devised to achieve the above object.
A first aspect of the present invention is a lens processing system comprising: a plurality of processing machines that perform eyeglass processing of spectacle lenses; and a processing size management device that is used by being connected to the plurality of processing machines. The processing size management device uses the processing tool in the processing machine in association with the type of lens material to be processed by the processing machine and the type of processing tool used by the processing machine for each model of the processing machine. Storage means for storing and holding information on processing characteristics when processing the lens material, and the information stored and held by the storage means is obtained by at least one of the plurality of processing machines. Information regarding processing characteristics of the processing machine, and the processing machine of the same model as the at least one processing machine among the plurality of processing machines is configured to process the lens material with the processing machine. When performing processing using Lumpur, said storage means is a lens processing system characterized by comprising a correction means for correcting the process parameters for the process based on the information stored and held.
According to a second aspect of the present invention, in the invention according to the first aspect, a processing machine of the same model as the processing machine other than the at least one processing machine is preliminarily used as a reference. For at least one type of the lens material defined, a processing size adjustment was performed for each type of the processing tool so that an error between the desired size and the actual size of the spectacle lens after the target lens processing was within an allowable range. In the above, the correction unit is configured to correct the processing parameter when processing at least one type of the lens material serving as the reference.
A third aspect of the present invention is a processing size management apparatus that is used by being connected to a plurality of processing machines that perform eyeglass processing of spectacle lenses, and for each type of the processing machine, the processing machine is a processing target. Storage means for storing and storing information on processing characteristics when processing the lens material using the processing tool in the processing machine in association with the type of lens material to be processed and the type of processing tool used by the processing machine; As information to be stored and held in the storage means, acquisition means for acquiring information on processing characteristics in at least one processing machine of the plurality of processing machines, and the same as the at least one processing machine among the plurality of processing machines. When processing the lens material with the processing tool using the processing tool for the processing machine of the model, the processing means A management means for correcting the process parameters for engineering a processing size management apparatus comprising: a.
According to a fourth aspect of the present invention, there is provided a processing size management method for managing processing sizes in a plurality of processing machines that perform eyeglass processing of spectacle lenses, wherein at least one of the plurality of processing machines is used. For each type of lens material to be processed by the processing machine and all types of processing tools used by the processing machine, information on processing characteristics when the lens material is processed using the processing tool is acquired. Storing the information relating to the processing characteristics acquired by the at least one processing machine in association with the type of the processing machine, the type of the lens material, and the type of the processing tool, and a plurality of processing machines Of these, at least one processing machine of the same type as the processing machine has already been stored and held when processing the lens material using the processing tool. A step of correcting the process parameters for the process based on the information about the engineering properties, a processing size management method, characterized in that it comprises a.
According to a fifth aspect of the present invention, there is provided a spectacle lens characterized in that the spectacle lens is formed by a target lens shape processing using the processing machine whose processing size is managed by the processing size management method according to the fourth aspect. It is a manufacturing method.

According to the present invention, when there are a plurality of processing machines, it is possible to simplify the labor of adjusting the size of processing for each processing machine.

It is a block diagram which shows the example of schematic structure of the whole lens processing system in embodiment of this invention. In the lens processing system of embodiment of this invention, it is explanatory drawing which shows a specific example of the information regarding the processing characteristic of a processing machine which the database part of a server apparatus memorize | stores and holds. It is explanatory drawing which shows a specific example of the size management table which the management means in the correction management program part of a client apparatus manages in the lens processing system of embodiment of this invention. It is a flowchart which shows one specific example of the procedure of the process size management in embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, description will be made by dividing into items in the following order.
1. 1. General configuration of the entire lens processing system 2. Configuration of processing machine 3. Configuration of processing size management device 4. Process size management procedure 5. Manufacturing procedure of spectacle lens Effects of the present embodiment 7. Modifications etc.

<1. General configuration of the entire lens processing system>
First, a schematic configuration of the entire lens processing system in the present embodiment will be described.
FIG. 1 is a block diagram illustrating a schematic configuration example of the entire lens processing system according to the present embodiment.

The lens processing system is used for processing a lens shape of an eyeglass lens, and is constructed, for example, in an eyeglass lens processing center. More specifically, the lens processing system includes a plurality of processing machines 10 installed in a spectacle lens processing center, a three-dimensional circumference measuring machine 20, a management device 30, and a communication line 40 that connects these devices. Configured.

In the lens processing system having such a configuration, each of the plurality of processing machines 10 performs eyeglass processing of a spectacle lens. The plurality of processing machines 10 may include different models.
The three-dimensional circumference measuring machine 20 measures the circumference of the spectacle lens after processing the target lens shape.
The management device 30 functions as a processing size management device that is used by being connected to a plurality of processing machines 10, and includes a server device 31 and a client device 32 in this embodiment. Both the server device 31 and the client device 32 have a computer function. The server device 31 controls and manages the operation of the entire system, whereas the client device 32 controls each processing machine 10. Are different from each other in that they control and manage the operation of the. A plurality of client devices 32 may be provided in the system in consideration of the number of processing machines 10 present in the system and the number of processing machines 10 that can be managed by the client device 32. In the present embodiment, the server device 31 and the client device 32 are provided as separate devices. However, they may be provided as a single device.

<2. Configuration of processing machine>
Next, the processing machine 10 in the lens processing system will be described in more detail.

As described above, the processing machine 10 performs eyeglass processing of spectacle lenses. The target lens shape processing is performed on an uncut lens having a predetermined outer shape. When the target lens shape is processed, the peripheral edge of the uncut lens is processed into a shape that can be framed in the spectacle frame. The processing machine 10 performs such target processing by selectively using a plurality of types of processing tools. The processing tool here refers to a cutting / grinding tool for the periphery of the uncut lens, and specifically includes various types such as a bevel tool, a flat tool, a bevel polish tool, and a flat polish tool.

There are a plurality of types of lens materials for the uncut lens to be processed. Therefore, the processing machine 10 may need to target multiple types of lens materials.
However, lens materials that can be processed may vary in workability (for example, good or bad machinability) depending on the type. Therefore, the processing machine 10 has several processing modes to cope with the difference in workability, and the processing conditions (for example, the tool driving speed) on the apparatus side can be changed by switching the processing modes. It is configured.
However, the number of types of lens materials to be processed and the number of processing modes in the processing machine 10 do not necessarily coincide with each other, and in this embodiment, a larger number of lens materials than the number of processing modes are assumed as processing targets. Shall.

Moreover, the processing machine 10 is comprised so that it can respond to process size adjustment as a pre-process of a target lens shape process. Therefore, the processing machine 10 has a function as the adjusting means 11.
The adjusting means 11 is a function for dealing with the processing size adjustment. The processing size adjustment is performed at a predetermined stage such as when the apparatus is introduced or when the tool is changed so that the error between the actual size of the spectacle lens after the target lens processing and the desired size falls within an allowable range. Performed by maintenance personnel. Specifically, as the processing size adjustment, for example, after actually processing a predetermined lens and measuring the actual size after the processing, in order to keep the error between the actual size and the desired size within an allowable range, It is conceivable to set processing conditions for the processing machine 10 in advance so as to eliminate the minute. More specifically, as processing conditions for eliminating the error, for example, for the processing parameters such as the inter-axis distance between the lens rotation axis and the processing tool rotation axis, the tool diameter (offset amount) of the processing tool, etc. The correction value is set in advance on the processing machine 10 side. Such processing size adjustment may be performed by using a known technique (for example, see Patent Document 1). As one specific example, a correction value of a processing parameter from an operation panel (not shown) of the processing machine 10 is used. Can be performed by an operator or the like.

Further, the processing machine 10 is configured to be able to cope with the processing parameter correction as a process at the time of processing the target lens shape. Therefore, the processing machine 10 has a function as the correction means 12.
The correction means 12 is a function for dealing with machining parameter correction. The processing parameter correction is for eliminating the error so that the error between the actual size of the spectacle lens after the target lens processing and the desired size falls within an allowable range, as in the processing size adjustment described above. . However, the processing parameter correction is performed at the time of processing the target lens shape by the processing machine 10, that is, performed at the operation stage of the processing machine 10. This is different from the processing size adjustment performed. Further, the processing parameter correction is not performed by an operator of the processing machine 10 or the like as in the processing size adjustment but based on information from the client device 32 to which the processing machine 10 is connected. Specifically, when a correction value for eliminating an error amount is notified from the client device 32 with respect to a processing parameter such as a tool diameter of the processing tool, the processing amount reflecting the notified correction value is determined. On top of that, we will be processing the target. Such a function as the correction unit 12 receives a correction value notified from the client device 32 (inquires the client device 32 for the correction value in some cases), and performs drive control of the processing machine 10 based on the correction value. As described above, this can be realized by setting a control program of the processing machine 10.

In addition, in the processing machine 10, since matters other than the contents described above are configured using a known technique, the description thereof is omitted here.

<3. Configuration of processing size management device>
Next, the management device 30 that functions as a processing size management device in the lens processing system will be described in more detail.
As described above, the management device 30 includes the server device 31 and the client device 32. Hereinafter, these will be described in order.

(Configuration of server device)
The server device 31 includes a computer that manages and controls the overall operation of the lens processing system, and centrally manages information related to the target lens shape processing performed in the lens processing system. Specifically, the server device 31 is connected to a terminal device (not shown) installed in the spectacle store via a wide area network such as the Internet, and accepts an order for spectacle lenses from the terminal device. When the order is accepted, the information about the job according to the order is managed, and the result of measuring the circumference of the spectacle lens after processing the target lens shape obtained by the three-dimensional circumference measuring machine 20 in association with the information about the job. To manage.

The server device 31 has a database unit 33, and is configured to store and hold various types of information in the database unit 33. Various information stored and held in the database unit 33 include processing characteristics in the processing machine 10 in the system, in addition to information to be centrally managed in the system as described above (for example, information on jobs and information related thereto). There is information about. That is, the database unit 33 functions as a storage unit that stores and holds information related to processing characteristics in the processing machine 10.

Information on processing characteristics in the processing machine 10 is information for specifying what processing characteristics each processing machine 10 has when processing a lens material using a processing tool in the processing machine 10. is there. Specifically, as an example of information on processing characteristics, information specifying how much the actual size after processing is relative to the processing size instructed from the outside, that is, the desired size and the actual size after processing Information that identifies the error is included.

Here, the information regarding the machining characteristics stored and held by the database unit 33 will be described in more detail with specific examples.
FIG. 2 is an explanatory diagram showing a specific example of information relating to machining characteristics stored and held by the database unit 33 of the present embodiment.

As shown in the figure, information on processing characteristics is stored and held in association with the type of lens material to be processed by the processing machine 10 and the type of processing tool used by the processing machine 10. That is, the information on the machining characteristics includes, for example, a bevel tool (see FIG. 2A), a flat tool (see FIG. 2B), a bevel polish tool (see FIG. 2C), and a flat polish tool (FIG. 2D). ))) And stored in the database unit 33 for each type of lens material to be processed, such as material A to material I, for example. Each lens material type is associated with a processing mode (for example, mode A to mode D) of the processing machine 10 used when processing the lens material.

Specific information regarding processing characteristics includes a theoretical lens perimeter value (hereinafter referred to as “perimeter”) when a preset reference outer shape (hereinafter referred to as “reference shape”) is realized with a flat lens. "Reference value"), the actual lens perimeter value (hereinafter referred to as "actual measurement") when a predetermined power lens (for example, each of a zero power lens (Plano), an S + 4.00 lens, and an S-7.00 lens) is processed into a reference shape. (Peripheral length)), the average value of the measured circumferences of multiple lenses, and the circumference difference between the circumference reference value and the average value of the measured circumferences, converted into values in the lens radial direction (hereinafter referred to as "circumference difference" Can be illustrated as being associated with each other.

Furthermore, specific contents of information relating to machining characteristics include apparatus-side correction values and parameter correction values in addition to the above-described contents. Both the apparatus-side correction value and the parameter correction value are used to keep the error between the actual size of the processed lens and the desired size within an allowable range. However, the apparatus-side correction value and the parameter correction value are used when the apparatus-side correction value is set on the processing machine 10 side, whereas the parameter correction value is notified from the client device 32 to the processing machine 10. In some respects, they are different from each other. The apparatus-side correction value is used for machining size adjustment, whereas the parameter correction value is used for machining parameter correction. The apparatus-side correction value and the parameter correction value have a relationship of “peripheral length radius conversion value” = “apparatus-side correction value” + “parameter correction value”.

The information regarding the machining characteristics as described above is stored and held in the database unit 33 individually for each model of the processing machine 10 when a plurality of types of the processing machines 10 are mixed in the system.

Such information on processing characteristics in the database unit 33 is obtained by actually processing a predetermined power lens into a reference shape in at least one of the plurality of processing machines 10 in the system. At least one processing machine 10 that actually performs processing may be only one if there is only a single model in the system, but if there are multiple models in the system, the number of models Minutes are needed.

(Client device)
The client device 32 includes a computer that controls and manages the operation of each processing machine 10 in the system while following the management and control by the server device 31. Specifically, the client device 32 receives information related to the job managed by the server device 31 from the server device 31 and notifies the processing device 10 that executes the job (ie, eyeglass lens processing). Thus, the job processing operation in the processing machine 10 is controlled. In addition, prior to job processing, the client device 32 acquires information on processing characteristics obtained by at least one processing machine 10 in the system, and transmits the acquired information to the server device 31 to transmit the server. The device 31 is requested to hold the memory.

In order to perform such processing, the client device 32 includes a control program unit 34 and a correction management program unit 35.

The control program unit 34 is for managing and controlling jobs to be executed by the processing machine 10. That is, the control program unit 34 has a function of receiving information on a job from the server device 31 and notifying information to the processing machine 10 that executes the job (job execution instruction). Note that these functions may be realized using known techniques, and detailed description thereof is omitted here.

The correction management program unit 35 is not present in the conventional system. Based on the stored information stored in the database unit 33 of the server device 31, the correction management program unit 35 performs processing parameter correction when the processing machine 10 executes a job. To notify. In order to perform such processing, the correction management program unit 35 is configured to have functions as an acquisition unit 36 and a management unit 37.

The acquisition unit 36 acquires information on processing characteristics obtained by at least one processing machine 10 in the system, transmits the acquired information to the server device 31, and stores it in the database unit 33 of the server device 31. It is a function to hold. What is necessary is just to perform acquisition of the information regarding a process characteristic using a well-known technique. As a specific example, for example, using a display device such as a display provided in the client device 32 and an input device such as a keyboard, a GUI (Graphical User Interface) screen for prompting information input is displayed on the display device while the operator or the like is displayed. It is conceivable to acquire information on machining characteristics by inputting various information from an input device. As another specific example, for example, when the client device 32 receives various information input from an operator or the like on the operation panel or the like of at least one processing machine 10 from the processing machine 10, the client device 32 is It is also conceivable to acquire information on processing characteristics.

The management unit 37 manages the processing parameter correction in the processing machine 10 when the control program unit 34 instructs the processing machine 10 to execute the job and the processing machine 10 executes the job according to the instruction. It is a function for. Processing parameter correction management is performed using a size management table for each processing machine 10. That is, the management unit 37 creates a size management table for each processing machine 10, and notifies the correction value managed on the size management table to the processing machine 10 while using the created size management table. Processing parameter correction is performed individually for each processing machine 10.

FIG. 3 is an explanatory diagram showing a specific example of the size management table managed by the management unit 37 in the correction management program unit 35 of the present embodiment.
As shown in the figure, the size management table is created for each processing machine 10, and the type of lens material (material A, material B,...) To be processed by the processing machine 10 and its processing. The types of processing tools used by the machine 10 (bevel tools, flat tools,...) And correction values H11, H12,... For correction of processing parameters required in each combination are managed in association with each other. (Memory retention). As described in detail later, “parameter correction values” are read from the database unit 33 and stored in the correction values H11, H12... In the size management table.

The correction management program unit 35 having functions as the acquisition unit 36 and the management unit 37 can be realized by a software program executed by the client device 32 that is a computer. In this case, the correction management program unit 35 as a software program is installed in the client device 32 and used. However, the present invention is not necessarily limited to this, and the correction management program unit 35 may exist in the server device 31 or another client device 32 in the system as long as the client device 32 is accessible.

<4. Process size management procedure>
Next, a processing size management procedure in the lens processing system having the above-described configuration will be described.
FIG. 4 is a flowchart showing a specific example of the processing size management procedure in the present embodiment.

(Processing with the first processing machine)
In the lens processing system of the present embodiment, when the first processing machine 10 of a certain model is introduced, first, the processing size of the processing machine 10 is adjusted (step 101; hereinafter, step is abbreviated as “S”). ). The processing size adjustment is performed by the operation of an operator or the like while using the function as the adjusting means 11 of the processing machine 10.

Specifically, the first processing machine 10 performs processing on an unprocessed flat lens made of a predetermined lens material (for example, material A) so that its outer shape becomes a reference shape having a desired size. It is conceivable that the reference shape having a desired size is, for example, a circular shape in plan view in which the circumference is the circumference reference value. This is because if it is a circular shape in plan view, measurement of an actual size described later can be easily performed. Further, the reason for processing the flat lens is that the influence of the lens curve can be eliminated, and the outer shape processing and the actual size measurement can be performed with high accuracy.
The external shape processing for the flat lens is performed for each type of processing tool used by the first processing machine 10. Therefore, the flat lens after the outer shape processing is obtained by the number of all kinds of processing tools used by the first processing machine 10.
And after performing the external shape process with respect to a flat lens, the actual size of the perimeter of the outer periphery is measured about the flat lens after the process. The size measurement may be performed using the three-dimensional circumference measuring machine 20 in the system, but is not limited thereto. For example, an operator or the like may measure using a measuring machine such as a caliper. It doesn't matter.
Thereafter, the operator or the like compares the desired size (circumference reference value) with the actual size and adjusts the processing size for the first processing machine 10 so that the error is within the allowable range. Specifically, after calculating the error between the desired size and the actual size by, for example, a radius conversion value, the operator or the like operates the operation panel of the first processing machine 10 so as to eliminate the calculated error. Correction values for various machining parameters (for example, the tool diameter of the machining tool) are set in advance on the processing machine 10 side for each type of machining tool. Such processing may be performed using a function (known function) inherently possessed by the first processing machine 10.
Thereby, in the first processing machine 10, an error between a desired size and an actual size is obtained at least for a flat lens made of a predetermined lens material, no matter what kind of processing tool is used. The outer shape can be processed so that the minute is within the allowable range. That is, in other words, preparation for appropriately grasping the processing characteristics described later is completed.

After performing the processing size adjustment, the first processing machine 10 grasps the processing characteristics of the processing machine 10 (S102). For grasping the processing characteristics, the processing machine 10 performs processing so that the outer shape becomes a reference shape of a desired size for an unprocessed predetermined power lens, and measures the actual size of the spectacle lens after processing. By doing. The reference shape of the desired size is the same as that of the flat lens described above. Further, the actual size may be measured using the three-dimensional circumference measuring machine 20 in the system as in the case of the flat lens described above, but is not limited to this, and calipers and the like are not limited thereto. You may make it measure using the measuring machine of.

Specifically, an unprocessed predetermined power lens (for example, each of a power zero lens (Plano), an S + 4.00 lens, and an S-7.00 lens) is prepared, and the first processing machine 10 uses each predetermined power lens. The outer periphery is actually processed into a reference shape of a desired size by the processing machine 10, and the lens peripheral length after the processing (that is, the actual size of each predetermined power lens after processing) is measured.
By using the measurement result obtained in this way, the circumference difference with respect to the circumference reference value of the measurement result (that is, the error between the desired size and the actual size after processing) can be calculated. It is possible to specify what processing characteristics the eye processing machine 10 has. In other words, a flat lens can be processed so that the error between the desired size and the actual size is within the allowable range. Whether such an error occurs or whether the error falls within an allowable range can be grasped as a processing characteristic for the predetermined power lens.

In addition, in the first processing machine 10, the processing characteristics are grasped for all types of lens materials to be processed by the processing machine 10 and for all types of processing tools used by the processing machine 10. To do. Therefore, after grasping the processing characteristics for all of these types, it is recognized how the difference in the type of lens material or the type of processing tool affects the processing characteristics in the first processing machine 10. You can get it.

By grasping the machining characteristics by the method as described above, information on the machining characteristics in the first processing machine 10 (specifically, for example, each numerical value constituting the information shown in FIG. 2) is specified. Will be.
As described above, the processing characteristics are grasped by the first processing machine 10 which is at least one processing machine 10 in the system, but since it is “at least one”, a plurality of processing machines of the same model are used. It is also conceivable to do in each of the ten. When the processing characteristics are grasped by each of the plurality of processing machines 10, it is possible to expect higher accuracy and improved reliability of the grasped results. However, in consideration of the burden for grasping the machining characteristics, it is preferable to carry out only in the first processing machine 10 as described above.

Here, in the first processing machine 10, an operator or the like performs processing size adjustment using an apparatus-side correction value (for example, see FIG. 2) as necessary (S103). The processing size adjustment here is performed by paying attention to a lens material (for example, material A) of a reference type set in advance for each type of processing tool. Hereinafter, this lens material is referred to as “reference glass material”. Specifically, first, an operator or the like grasps a radius converted value of a circumference difference actually measured for a predetermined power lens of a reference glass material. For example, when the processing tool is a bevel tool (for example, see FIG. 2A), the radius converted value of the circumference difference for the reference glass material is “0.00”, and when the processing tool is a bevel polish tool (for example, FIG. 2 (c)), the radius converted value of the circumferential length difference for the reference glass material is “0.01”. And if the radius conversion value of the circumference difference about a reference glass material is grasped, the radius conversion value of the circumference difference grasped by the operation of an operator or the like while using the function as the adjusting means 11 in the first processing machine 10. Is set in advance on the processing machine 10 side for each type of processing tool as the apparatus-side correction value of the processing machine 10. Hereinafter, the apparatus-side correction value set on the processing machine 10 side is referred to as a “machine offset value”. Thereby, for example, the machine offset value is set to “0.00” for the bevel tool or is not set (for example, see FIG. 2A), but the machine offset value is set to “0.01” for the bevel polish tool. Is set (see, for example, FIG. 2C). Note that the machine offset value is set to a value common to all machining modes even when the machining machine 10 can support a plurality of machining modes (for example, mode A to mode D). Such processing may be performed using a function (known function) inherently possessed by the first processing machine 10.

By performing such processing size adjustment, the first processing machine 10 thereafter sets the desired size and actual size at least for the reference glass material, regardless of the type of processing tool used. It becomes possible to perform contour processing so that the error is within the allowable range. That is, in other words, at least for the reference glass material, the processing characteristics can be homogenized (standardized) regardless of the type of processing tool used.

(Processing with processing size management device)
Thereafter, the client device 32 acquires information on the processing characteristics of the first processing machine 10 and stores the acquired information in the database unit 33 of the server device 31 (S104).

Specifically, in the client device 32, the acquisition unit 36 of the correction management program unit 35 displays a GUI screen that prompts information input, and allows an operator or the like to input various information. Although various information can be input using the input device of the client device 32, the information may be input using an operation panel or the like in the first processing machine 10 connected to the client device 32. The information input at this time is information obtained in the above-described step (S102), and is information related to machining characteristics in the first processing machine 10. More specifically, it is information about each item shown in FIG. Of these items, it is essential to input the circumference reference value and the actually measured circumference, but other items may be obtained by inputting from the GUI screen in the same manner as the mandatory input items. Alternatively, it may be acquired by calculating by the acquisition means 36 from the input contents of the essential input items.
As a result, the database unit 33 of the server device 31 stores and holds information on the machining characteristics as shown in FIG. Note that the storage and holding in the database unit 33 is performed in association with information for identifying the model of the first processing machine 10 (that is, individually for each model of the processing machine 10).

(Processing on the second and subsequent machines)
Here, consider a case where a processing machine 10 of the same model as the first processing machine 10 is newly introduced in the lens processing system. Hereinafter, the newly introduced processing machine 10 is referred to as the second and subsequent processing machines 10.

When the second and subsequent processing machines 10 are introduced, first, the processing size of each processing machine 10 is adjusted (S105a, S105b,...). The size adjustment of the processing is performed by the operation of an operator or the like while using the function as the adjusting means 11 of the processing machine 10.
However, the processing size adjustment performed on the second and subsequent processing machines 10 is different from the processing size adjustment on the first processing machine 10 in the following points.

For the second and subsequent processing machines 10, the processing characteristics are not grasped as in the first processing machine 10, so that it is not necessary to adjust the processing size to properly grasp the processing characteristics. is there. Therefore, in the second and subsequent processing machines 10, the predetermined processing lens of the reference glass material is used instead of the prior processing size adjustment using the flat lens as in the first processing machine 10. Adjust the processing size.

Specifically, in each of the second and subsequent processing machines 10, for example, with respect to an unprocessed power zero lens (Plano) of the reference glass material, the outer shape is a desired size (that is, a size whose circumference becomes a circumference reference value). ) Is processed so as to be a reference shape. And the actual size of the perimeter of the outer periphery is measured about the power zero lens after the process. The size measurement may be performed using the three-dimensional circumference measuring machine 20 in the system, but is not limited thereto. For example, an operator or the like may measure using a measuring machine such as a caliper. It doesn't matter.
Such processing and measurement are performed for each type of processing tool used by each processing machine 10 in each of the second and subsequent processing machines 10. Accordingly, the measurement results of the power zero lens and the actual size after the outer shape processing are obtained by the number of all types of processing tools used by the second and subsequent processing machines 10.
After that, the operator or the like compares the desired size (circumference reference value) with the actual size, calculates an error between the desired size and the actual size, for example, using a radius conversion value, and the error is within an allowable range. Therefore, by operating the operation panel of the second and subsequent processing machines 10, a correction value of a processing parameter (for example, the tool diameter of the processing tool) that eliminates the calculated error is set for each type of processing tool. In addition, a machine offset value is set in advance on the processing machine 10 side. Such processing may be performed using a function (known function) inherently possessed by the second and subsequent processing machines 10.

By performing such processing size adjustment, in the second and subsequent processing machines 10, the desired size and the actual size are used at least for the reference glass material, regardless of the type of processing tool used. It is possible to perform external shape processing so that the error amount falls within an allowable range. That is, in other words, at least for the reference glass material, as with the first processing machine 10, the processing characteristics can be homogenized (standardized) regardless of the type of processing tool used.

(Processing with processing size management device)
Thereafter, the client device 32 determines the size management table for each processing machine 10 with respect to the processing machines 10 existing in the Les · BR> tower Y processing system, that is, the first and second and subsequent processing machines 10. (For example, refer to FIG. 3) is created (S106).

Specifically, in the client device 32, the management unit 37 of the correction management program unit 35 determines the type of lens material (material A, material B) that is to be processed by the processing machine 10 for each processing machine 10 under management. ,...) And the type of processing tool used by the processing machine 10 (a bevel tool, a flat tool,...). This recognition is performed for each processing machine 10, but the same recognition result can be obtained if the same type of processing machine 10 is used. When the lens material type and the processing tool type are recognized, a framework for managing (storing and holding) them in a table format in association with these correction values H11, H12. Shape). The table created in this way is a size management table for each processing machine 10. The table creation and the information acquisition necessary for the creation may be performed using a known technique, and the method itself is not particularly limited.

After the size management table is created for each processing machine 10, values (initial values) are stored in the correction values H11, H12,... In each size management table after that. S107).

Specifically, in the client device 32, the management unit 37 of the correction management program unit 35 first accesses the database unit 33 of the server device 31, and information on the machining characteristics acquired by the first processing machine 10. The “parameter correction value” is read out. The “parameter correction value” is associated with each of the lens material type and the processing tool type. When the “parameter correction value” is read, the management unit 37 of the correction management program unit 35 maintains the association between the lens material type and the processing tool type, and the correction values H11, H12,... In the size management table. Store the read “parameter correction value” in the appropriate location in the section. As a result, a size management table in which “parameter correction values” of the information regarding the machining characteristics acquired by the first processing machine 10 are stored as correction values H11, H12. It will be completed.

According to such a size management table, the correction values H11, H12,... Can be managed (stored) for each type of lens material and further for each type of processing tool. Therefore, when managing correction values on the processing machine 10 side, only a single correction value or a correction value for each processing mode (for example, mode A to mode D) can be handled. It is possible to perform batch management of a very wide variety of correction values such as each type and each processing tool type. In other words, it is possible to realize correction value management of machining parameters that could not be dealt with by conventional technical common sense.

The size management table completed in this way is different for each processing machine 10, but if it is for the processing machine 10 of the same model, it will have the same contents at least when the table is completed. That is, both the size management table for the first processing machine 10 and the size management table for the second and subsequent processing machines 10 are both acquired by the first processing machine 10. The “parameter correction value” is stored.

In addition, after completion of the size management table, the correction values H11, H12,... In the size management table may be appropriately updated according to the operating status of each processing machine 10. For example, in a predetermined stage after the processing machine 10 is operated, the actual size of the peripheral length of the processed lens is measured, and based on the measurement result, a new value that allows an error between the desired size and the actual size to be within an allowable range It is conceivable to change the correction values H11, H12,. In this way, it is possible to avoid the influence of the operating status of the processing machine 10 (for example, the influence of the progress of wear of the processing tool) on the actual size of the lens after processing. That is, regardless of the operating status of the processing machine 10, it is possible to improve the processing accuracy of the lens processing for the spectacle lens. This is realized in the client device 32 by the management unit 37 of the correction management program unit 35 creating an individual size management table for each processing machine 10. In other words, it can be said that the creation of the size management table for each processing machine 10 contributes to improvement of the processing accuracy of the target lens shape processing after the operation of each processing machine 10.

Through the above procedure, the preparation stage in the lens processing system of this embodiment is completed. That is, after each of the above-described steps (S101 to S107), the lens processing system according to the present embodiment can enter an operation stage in which eyeglass processing of a spectacle lens is performed.

In the operation stage, the server device 31 monitors whether or not an eyeglass lens is ordered (that is, whether or not there is a job). When a job occurs, various information necessary for executing the job is managed in the database unit 33, and a job number unique to the job is converted into a barcode and output. The bar-coded job number is attached to an uncut lens that is to be processed by the job, and the first processing machine 10 or the second and subsequent processing machines 10 that perform the target lens processing. Sent to either. Hereinafter, either the first processing machine 10 that performs the target lens shape processing or the second and subsequent processing machines 10 is simply referred to as the processing machine 10.

When an uncut lens with a barcode attached is sent, the processing machine 10 reads the barcode with a barcode reader provided in the processing machine 10 to recognize the job number, and sends the job number to the client device 32. Notice. Based on the notified job number, the client device 32 requests the server device 31 to notify information related to the job specified by the job number. When various information related to the request is notified from the server device 31, the client device 32 notifies the processing machine 10 that is the request source of the notified various information. Examples of various information to be notified include job identification data (job number, etc.), lens data (product code specifying lens material, lens power, lens thickness, surface shape curve value, back surface shape curve value, antireflection Film type, lens color type, etc.), target lens shape data (three-dimensional target lens shape, two-dimensional target lens shape, theoretical circumference, left eye / right eye, frame / pattern, etc.) , Processing condition data (lens material type, processing tool type, etc.) are included.

In addition, in the client device 32, together with the notification of the various information described above, the function as the management unit 37 of the correction management program unit 35 accesses the storage information of the size management table for the selected processing machine 10, From the size management table, the correction value of the processing parameter associated with the type of lens material and the type of processing tool related to the job to be executed by the processing machine 10 (that is, the corresponding “parameter correction value”) is read out. The parameter correction value "is notified to the selected processing machine 10 (S108).
As a result, the client device 32 executes the job using the “parameter correction value” read from the size management table as accompanying information together with various information such as lens data, target lens shape data, and processing condition data. The processing machine 10 is notified.

(Processing on the processing machine that executes the target processing job)
On the other hand, in the processing machine 10 that executes the target lens processing job, when the above-described various information is notified from the client device 32, execution of the target lens processing job is started based on the content of the notified various information.

At this time, the processing machine 10 is also notified of the “parameter correction value”. Therefore, in the processing machine 10, when executing the target lens processing job, the function as the correction unit 12 receives the notified “parameter correction value”, and sets the processing amount reflecting the received “parameter correction value”. decide. That is, based on the received “parameter correction value”, the machining parameter specified by various information from the client device 32, specifically, the tool diameter (offset amount) of the machining tool, is divided by the “parameter correction value”. Only correction is made (S109a, S109b, S109c).

Such processing parameter correction by the correction means 12 is performed based on a size management table managed by the client device 32. The size management table can collectively manage a wide variety of correction values such as lens material types and processing tool types. Therefore, in the correction of the processing parameters by the correcting means 12, regardless of the types of processing modes that the processing machine 10 can handle, all types of lens materials that can be processed by the processing machine 10 are corrected appropriately for each lens material. Can be done. Further, all types of processing tools that can be used in the processing machine 10 can be corrected appropriately for each processing tool.

When the correction unit 12 corrects the processing parameter, the processing machine 10 performs the target lens processing on the spectacle lens using the corrected processing parameter, that is, with the corrected size (S110a, S110b, S110c).

At this time, for example, the second and subsequent processing machines 10 perform the processing parameter correction based on the “parameter correction value” acquired by the first processing machine 10, that is, information on processing characteristics other than the own processing machine 10. become. However, in the second and subsequent processing machines 10, the processing size adjustment is performed (S 105 a, S 105 b,...) Prior to performing the target lens shape reflecting the result of the processing parameter correction. As a result, the processing characteristics are homogenized (standardized). Therefore, even when the machining parameter correction is performed based on the “parameter correction value” acquired by the first processing machine 10, the result of the processing parameter correction is reflected in the second and subsequent processing machines 10. As with the case of the first processing machine 10, the target lens shape processing is appropriate (that is, an error between the desired size and the actual size can be within an allowable range).

Through the above procedure, in the lens processing system according to the present embodiment, processing size management is performed when the processing machine 10 processes the eyeglass lens.

<5. Manufacturing procedure for eyeglass lenses>
Next, a procedure for manufacturing a spectacle lens performed using the lens processing system described above will be briefly described.

In the lens processing system, when the server device 31 accepts an order from an eyeglass store, an uncut lens with a job number converted to a bar code is sent to one processing machine 10 that is the job execution subject. Based on the barcode reading result of the processing machine 10, various information necessary for job execution is notified from the client device 32 to the processing machine 10. At this time, the processing machine 10 is also notified of the correction value of the processing parameter from the client device 32 as described above. In other words, the processing machine 10 is notified of a correction value of the processing parameter (for example, a correction value converted to a radius value) for each job (order from the spectacle store).

Here, when an uncut lens made of a lens material related to an order from the spectacle store is set, the processing machine 10 makes the periphery of the set uncut lens a target lens shape related to the order from the spectacle store. Start processing the target lens. The processing amount for the uncut lens in the processing machine 10 at this time is a processing amount reflecting the correction value notified from the client device 32. That is, the processing machine 10 performs eyeglass lens processing while correcting the processing parameters for each job (order from an eyeglass store) under the processing size management by the server device 31 and the client device 32 described above. When the processing of the target lens in the processing machine 10 is completed, the eyeglass lens after the target lens processing is taken out from the processing machine 10, and a notification that the target lens processing is completed is sent from the processing machine 10 to the client device 32. And is performed from the client device 32 to the server device 31.

Through the above procedure, the eyeglass lens is manufactured by order from the eyeglass store in the lens processing system of the present embodiment.

<6. Effects of this embodiment>
According to this embodiment, the following effects can be obtained.

In the present embodiment, information regarding processing characteristics is grasped by the first processing machine 10 which is at least one processing machine 10 in the lens processing system, and information regarding the processing characteristics is stored and held in the database unit 33. At the same time, the correction management program unit 35 creates a size management table for each processing machine 10 based on the stored information. When each eyeglass lens is processed by each processing machine 10, not only the first processing machine 10 but also the second and subsequent processing machines 10 are managed by the size management table, that is, Based on the information regarding the processing characteristics grasped by the first processing machine 10, the processing parameters for the target lens processing (specifically, for example, the tool diameter of the processing tool) are corrected. Therefore, according to the lens processing system of the present embodiment, the processing parameters are corrected regardless of whether the target lens processing is performed by either the first processing machine 10 or the second and subsequent processing machines 10. As a result, the error between the desired size and the actual size of the spectacle lens after the target lens processing falls within an allowable range.

In addition, according to the present embodiment, when correcting the machining parameters, not only the first processing machine 10 but also the second and subsequent processing machines 10 are recognized by the first processing machine 10. Based on information on processing characteristics. That is, if the same model is used, the processing parameter correction is performed on the second and subsequent processing machines 10 by directly applying the information on the processing characteristics of the first processing machine 10. Therefore, in the second and subsequent processing machines 10, at the time of introduction into the lens processing system, it is only necessary to adjust the processing size for each processing tool for at least the reference glass material, and all types to be processed by the processing machine 10. There is no need to adjust the individual processing size for each lens material. That is, it is not necessary to grasp the processing characteristics of the second and subsequent processing machines 10 as performed by the first processing machine 10. Therefore, even when a lens processing system including a plurality of processing machines 10 is constructed, the labor for adjusting the processing size in the second and subsequent processing machines 10 can be greatly simplified.

This means that a lens processing system is built especially for so-called made-to-order lenses (a lens that can have various specifications for not only lens prescription but also lens materials and lens peripheral processing for each customer order). In some cases, it is very effective. This is because, for a custom-made lens, each processing machine 10 has to cope with various lens materials, processing tools, etc. Therefore, the effect of simplifying the processing size adjustment in the second and subsequent processing machines 10 is effective. This is because it appears prominently.

In the present embodiment, in the second and subsequent processing machines 10, glasses for the reference glass material (that is, at least one type of lens material predetermined to be used as a reference) after processing the target lens shape for each type of processing tool. After adjusting the processing size so that the error between the desired size of the lens and the actual size falls within the allowable range, when processing the lens for a lens material other than the reference glass material, the first processing described above The machining parameters are corrected based on the machining characteristics in the machine 10. That is, in the second and subsequent processing machines 10, the processing size adjustment for the reference glass material is performed, and thereby, the processing characteristics that are mainly compatible with the first processing machine 10 are homogenized (standardized). Has been. Therefore, even when processing parameter correction is performed based on the processing characteristics of the first processing machine 10, the target lens shape processing that reflects the processing parameter correction results in the second and subsequent processing machines 10 is As in the case of the first processing machine 10, it is appropriate (that is, an error between the desired size and the actual size can be within an allowable range). This does not simply apply the “parameter correction value” in the first processing machine 10 to the second and subsequent processing machines 10 as it is. Based on the relationship with the processing characteristics in this case, the technical idea to be applied to the second and subsequent processing machines 10 is embodied.

Furthermore, in the present embodiment, the machining parameters are corrected while using the size management table managed by the correction management program unit 35 for both the first processing machine 10 and the second and subsequent processing machines 10. Therefore, unlike the case where correction values for each processing mode (for example, mode A to mode D) are managed on the side of each processing machine 10, each processing machine 10 corresponds to each type of lens material and each processing tool type. A large variety of correction values can be collectively managed. The number of processing modes that can be handled by the processing machine 10 is naturally limited due to the storage and storage capacity of information in the processing machine 10, but the management program unit 35 side of the client device 32 supports this. This is because a large capacity information storage capacity can be utilized compared to the processing machine 10. In other words, since it is possible to realize correction value management of processing parameters that could not be handled by conventional common general knowledge, it is possible to perform appropriate lens processing for each spectacle lens that may have various specifications. become. This can be said to be very effective particularly when a lens processing system corresponding to a custom-made lens is constructed.

<7. Modified example>
While embodiments of the present invention have been described above, the above disclosure is intended to illustrate exemplary embodiments of the present invention. That is, the technical scope of the present invention is not limited to the above exemplary embodiment.

For example, in the above-described embodiment, the case where the correction management program unit 35 that manages the processing parameter correction in each processing machine 10 is arranged in the client device 32 has been described as an example. It only needs to exist in any part of the lens processing system, and may be arranged in another device (for example, the server device 31).

In the above-described embodiment, the case where the correction management program unit 35 manages the machining parameter correction using the size management table for each processing machine 10 is taken as an example, but the present invention is not necessarily limited thereto. is not. If the size management table for each processing machine 10 is used, it is possible to avoid the influence of the operating status of the processing machine 10 on the result of the target lens shape processing as described above. Considering only the machining parameter correction in each processing machine 10 at the initial stage of operation, for example, by reading out the stored information from the database unit 33 each time, the “parameter correction value required for machining parameter correction without a size management table is obtained. Can be notified to each processing machine 10.

Also, the specific method for transferring various information between the client machine 32 and each processing machine 10 including the exchange of “parameter correction value” is not particularly limited. That is, the exchange of various information may be performed with respect to each processing machine 10 with the client device 32 as the main body, or each processing machine 10 with the client apparatus 32 as the main body as necessary. This may be performed by requesting information from the client 32 or reading information from a size management table in the client device 32 or the like.

Furthermore, in the above-described embodiment, each processing machine 10 installed in the processing center, the server device 31, and the client device 32 execute a target lens processing job in response to an order from a terminal device installed in the spectacle store. However, the present invention is not necessarily limited to this. For example, the target lens processing job is executed in response to an order from a terminal device installed in a processing center instead of an eyeglass store. Is also possible. Specifically, the spectacle frame shape is measured with a measuring machine installed in the processing center, and the lens is processed into a spectacle frame whose shape is measured, and shipped as a spectacle finished product from the processing center. It is possible to construct a mechanism such as

DESCRIPTION OF SYMBOLS 10 ... Processing machine, 11 ... Adjustment means, 12 ... Correction means, 20 ... Three-dimensional circumference measuring machine, 30 ... Management apparatus (processing size management apparatus), 31 ... Server apparatus, 32 ... Client apparatus, 33 ... Database part ( Storage means), 34 ... control program section, 35 ... correction management program section, 36 ... acquisition means, 37 ... management means, 40 ... communication line

Claims

A lens processing system comprising: a plurality of processing machines that perform eyeglass processing of spectacle lenses; and a processing size management device that is used by being connected to the plurality of processing machines,
The processing size management apparatus associates the processing tool with the processing machine in association with the type of lens material to be processed by the processing machine and the type of processing tool used by the processing machine for each model of the processing machine. Comprising storage means for storing and holding information on processing characteristics when processing the lens material using,
The information stored and held by the storage means is information on processing characteristics of the processing machine obtained by at least one processing machine of the plurality of processing machines,
A processing machine of the same type as the at least one processing machine among the plurality of processing machines stores and holds the storage means when processing the lens material using the processing tool with the processing machine. A lens processing system comprising correction means for correcting a processing parameter for the processing based on information.
Among the plurality of processing machines, a processing machine of the same model as the processing machine other than the at least one processing machine is provided for each type of the processing tool with respect to at least one type of the lens material predetermined to be a reference. The lens other than at least one of the reference lenses is used as the correction means after adjusting the processing size so that an error between the desired size and the actual size of the spectacle lens after processing the target lens shape is within an allowable range. The lens processing system according to claim 1, wherein the processing parameter is corrected when processing a material.
A processing size management device used by being connected to a plurality of processing machines for processing eyeglass lenses.
For each model of the processing machine, the lens material is processed using the processing tool in the processing machine in association with the type of lens material to be processed by the processing machine and the type of processing tool used by the processing machine. Storage means for storing and holding information on processing characteristics when
As acquisition information to be stored in the storage means, acquisition means for acquiring information on processing characteristics in at least one of the plurality of processing machines,
The storage means stores the processing machine of the same type as the at least one processing machine among the plurality of processing machines when processing the lens material using the processing tool. Management means for correcting the processing parameters for the processing based on the retained information;
A processing size management device comprising:
A processing size management method for managing processing sizes in a plurality of processing machines that perform eyeglass processing of spectacle lenses,
Using at least one processing machine of the plurality of processing machines, the processing tool is used for each of all types of lens materials to be processed by the processing machine and all types of processing tools used by the processing machine. Acquiring information on processing characteristics when processing the lens material;
Information on processing characteristics acquired by the at least one processing machine, the model of the processing machine,
Storing and holding in association with the type of the lens material and the type of the processing tool;
In the processing machine of the same model as the at least one processing machine among the plurality of processing machines, when processing the lens material using the processing tool, information on processing characteristics already stored and held Correcting the processing parameters for the processing based on
A processing size management method comprising:
A method for manufacturing a spectacle lens, comprising: forming a spectacle lens by a target lens shape processing using the processing machine in which a processing size is managed by the processing size management method according to claim 4.