WO2024018562A1

WO2024018562A1 - System and program

Info

Publication number: WO2024018562A1
Application number: PCT/JP2022/028217
Authority: WO
Inventors: 啓輔福島; 佳輝蔭山
Original assignee: 株式会社ジーベックテクノロジー
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2024-01-25
Also published as: JP7229621B1; JP2024014687A

Abstract

The purpose of the present invention is to provide a system and a program for enabling workpiece processing precision to be maintained even if a grinding material is worn down.　A system comprising at least one computer device, the system also comprising: a storage means that stores information relating to the wear speed of a grinding material provided to a polishing tool under a condition in which a workpiece is being polished by the polishing tool, in association with information relating to the aforementioned condition; an input means that accepts input of a condition under which the workpiece is being polished; and a specifying means that specifies information relating to the wear speed of the grinding material, the wear speed corresponding to the accepted condition.

Description

System and program

The present invention relates to a system and a program that make it possible to maintain the machining accuracy of a workpiece even if the abrasive material wears out.

When a machine tool performs processing such as cutting or drilling on a workpiece, metal fuzz called "burr" may occur on the machined surface of the workpiece. It is known to perform a process of removing the burr (hereinafter referred to as deburring) or a process of cutting the corner where the burr is generated (hereinafter referred to as chamfering).

These processes are performed manually or using a machine tool for numerical control (NC) processing. In machining using a machine tool, an NC program (also referred to as NC data) is used to input data directly into the machine tool by a worker, or a workpiece designed using CAD (Computer Aided Design) software is used. A method has been adopted in which shape data is used to specify the path of a tool attached to a machine tool using CAM (Computer Aided Manufacturing) software (for example, Patent Document 1).

By the way, when processing such as deburring or chamfering is performed using a machine tool, the abrasive material of the polishing tool attached to the machine tool gradually wears out. As the abrasive wear progresses, the amount of cut into the workpiece by the polishing tool decreases, making it difficult to maintain machining accuracy of the workpiece.

Japanese Patent Application Publication No. 2016-150428

An object of the present invention is to provide a system and a program that make it possible to maintain the machining accuracy of a workpiece even if the abrasive material wears out.

The purpose of the present invention is to
[1] A system comprising at least one computer device, wherein the storage means stores information regarding the wear rate of the abrasive material of the polishing tool under the conditions in association with information regarding the conditions when polishing the workpiece with the polishing tool. a system comprising: an input means for accepting input of conditions for polishing a workpiece; and a specifying means for specifying information regarding the wear rate of the abrasive material corresponding to the accepted conditions;
[2] A system comprising at least one computer device, an input means for accepting input of conditions for polishing a workpiece with a polishing tool, and information regarding conditions for polishing the workpiece as input data, A system comprising: identifying means for specifying information regarding the wear rate of the abrasive material under accepted conditions using a machine-learned predictive model using information regarding the wear rate of the abrasive material of the polishing tool as output data;
[3] Based on the information regarding the specified wear rate, the contact between the polishing tool and the workpiece is adjusted so that the load applied to the polishing tool and/or the amount of change in load when polishing under the above conditions is within a predetermined range. The system according to [1] or [2] above, comprising a generating means for generating control information for controlling the position in the direction or the amount of protrusion or the amount of cut in the contact direction of the abrasive material;
[4] The system according to [3] above, comprising a control means for controlling the position of the polishing tool in the contact direction, or the amount of protrusion or the amount of cut in the contact direction of the abrasive material, based on the generated control information;
[5] The system according to [3] or [4], comprising a transmitting means for transmitting the generated control information to another computer device different from the first computer device;
[6] Based on the information on the identified wear rate, adjust the position of the polishing tool in the contact direction with the workpiece or the contact direction of the abrasive material so that the amount of cut into the workpiece by the polishing tool is within a predetermined range. The system according to [1] or [2], comprising a generating means for generating control information for controlling the amount of protrusion or the amount of cut;
[7] The system according to [6] above, comprising a control means for controlling the position of the polishing tool in the contact direction, or the amount of protrusion or cutting in the contact direction of the abrasive material, based on the generated control information;
[8] The system according to [6] or [7], comprising a transmitting means for transmitting the generated control information to another computer device different from the first computer device;
[9] Receiving means for receiving information regarding the conditions when a workpiece is polished by a polishing tool in another device different from the computer device 1, and information regarding the wear rate of the abrasive material of the polishing tool under the conditions. The system according to any one of [1] and [3] to [8], wherein the storage means stores the received information regarding the wear rate of the abrasive material in association with the received information regarding the conditions;
[10] Information receiving means for receiving information regarding the conditions under which a workpiece was polished by a polishing tool in another device different from the computer device 1, and information regarding the wear rate of the abrasive material of the polishing tool under the conditions. as described in any one of [2] to [8] above, wherein the predictive model is machine-learned by using the received information regarding the conditions as input data and the received information regarding the wear rate of the abrasive material as output data. system;
[11] A system comprising at least one computer device, in which the load applied to the polishing tool and/or the amount of change in the load is applied to the polishing tool when polishing under the conditions, in association with information regarding the conditions when polishing the workpiece with the polishing tool. storage means for storing control information for controlling the position of the polishing tool in the contact direction in contact with the workpiece or the amount of protrusion or the amount of cut in the contact direction of the abrasive material of the polishing tool to keep the polishing tool in a predetermined range; A system comprising an input means for accepting input of conditions for polishing a workpiece, and a specifying means for specifying control information corresponding to the accepted conditions;
[12] A system comprising at least one computer device, in which the amount of cut into the workpiece by the polishing tool is set within a predetermined range under the conditions, in association with information regarding the conditions when polishing the workpiece with the polishing tool. storage means for storing control information for controlling the position of the polishing tool in contact with the work in the contact direction or the amount of protrusion or cutting in the contact direction of the abrasive material of the polishing tool; and conditions for polishing the work. A system comprising: an input means for accepting an input; and a specifying means for specifying control information corresponding to the accepted condition;
[13] A system comprising at least one computer device, an input means for accepting input of conditions for polishing a workpiece with a polishing tool, information regarding conditions for polishing the workpiece as input data, In order to keep the load applied to the polishing tool during polishing and/or the amount of change in load within a predetermined range, the position of the polishing tool in the contact direction in contact with the work, or the amount of protrusion or cutting of the abrasive material of the polishing tool in the contact direction. a system that specifies control information under accepted conditions using a machine-learned predictive model using control information for controlling the amount of water as output data;
[14] A system comprising at least one computer device, an input means for accepting input of conditions for polishing a workpiece with a polishing tool, information regarding conditions for polishing the workpiece as input data, To control the position of the polishing tool in the contact direction in contact with the workpiece in order to keep the cutting amount of the polishing tool into the workpiece within a predetermined range, or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction. A system comprising: identifying means for identifying control information under accepted conditions using a machine-learned predictive model using control information as output data;
[15] A control means for controlling the position of the polishing tool in the contact direction in contact with the workpiece or the protrusion amount or cutting amount of the abrasive material in the contact direction based on the specified control information, [11] to The system according to any one of [14];
[16] The system according to any one of [11] to [15], comprising a transmitting means for transmitting the specified control information to another computer device different from the first computer device;
[17] Information regarding the conditions under which the workpiece was polished with a polishing tool in another device different from the computer device in 1 above, and the load and/or the amount of change in the load applied to the polishing tool when polishing under the conditions. information receiving means for receiving information regarding the position of the polishing tool in the contact direction in contact with the workpiece or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction to achieve a predetermined range; [11], [15], and the above-mentioned [11], [15], which stores information regarding the received position of the polishing tool in the contact direction or the protrusion amount or cutting amount in the contact direction of the abrasive material of the polishing tool in association with the information regarding the received condition; The system according to any one of [16];
[18] Information regarding the conditions under which the workpiece was polished with a polishing tool in another device different from the computer device mentioned above, and the load and/or the amount of change in the load applied to the polishing tool when polishing under the conditions. Information receiving means for receiving information regarding the position of the polishing tool in the contact direction in contact with the workpiece or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction to achieve a predetermined range, and the predictive model includes: Machine learning is performed using information regarding the received conditions as input data and information regarding the received position of the polishing tool in the contact direction or the protrusion amount or cutting amount in the contact direction of the abrasive material of the polishing tool as output data. The system according to any one of [12], [15] and [16];
[19] Information regarding the conditions under which a workpiece was polished with a polishing tool in another device different from the computer device described in 1 above, and information for setting the amount of cut into the workpiece by the polishing tool within a predetermined range under the conditions. information receiving means for receiving information regarding the position of the polishing tool in the contact direction in contact with the workpiece, or the amount of protrusion or cutting in the contact direction of the abrasive material of the polishing tool, and the storage means associates the information with the received information regarding the conditions. and storing the received information regarding the position of the polishing tool in the contact direction or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction. System described;
[20] Information regarding the conditions under which a workpiece was polished by a polishing tool in another device different from the computer device mentioned in 1 above, and information for setting the amount of cut into the workpiece by the polishing tool within a predetermined range under the conditions. and an information receiving means for receiving information regarding the position of the polishing tool in the contact direction in contact with the workpiece, or the protrusion amount or cutting amount in the contact direction of the abrasive material of the polishing tool, and the predictive model inputs the information regarding the received conditions. [14] to [16], which is machine learning using the received position of the polishing tool in the contact direction or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction as output data. The system described in any of the above;
[21] The information regarding the conditions is information regarding the type of abrasive material, the type of workpiece, the rotational speed of the polishing tool, the feed rate of the polishing tool, the state of the workpiece before polishing, and/or the state of the workpiece after polishing. , the system according to any one of [1] to [20] above;
[22] A program executed on a computer device, the computer device being associated with information regarding conditions for polishing a workpiece with a polishing tool, and storing information regarding the wear rate of the abrasive material of the polishing tool under the conditions. a program that functions as a storage means for storing information, an input means for accepting input of conditions for polishing a workpiece, and a specifying means for specifying information regarding the wear rate of the abrasive material corresponding to the accepted conditions;
[23] A program executed on a computer device, the computer device being an input means for accepting input of conditions for polishing a workpiece with a polishing tool, and information regarding conditions for polishing the workpiece as input data, A program that functions as a specifying means for specifying information regarding the wear rate of the abrasive material under the accepted conditions using a predictive model learned by machine learning using information regarding the wear rate of the abrasive material of the polishing tool as output data under the conditions;
[24] A program executed on a computer device, which associates the computer device with information regarding conditions for polishing a workpiece with a polishing tool, and calculates the load and/or load applied to the polishing tool when polishing under the conditions. A memory for storing control information for controlling the position of the polishing tool in the contact direction in contact with the workpiece or the amount of protrusion or cutting in the contact direction of the abrasive material of the polishing tool in order to keep the amount of change within a predetermined range. a program that functions as a means, an input means for accepting input of conditions for polishing a workpiece, and a specifying means for specifying control information corresponding to the accepted conditions;
[25] A program executed on a computer device, which associates the computer device with information regarding conditions for polishing a workpiece with a polishing tool, and controls the amount of cut into the workpiece by the polishing tool within a predetermined range under the conditions. a storage means for storing control information for controlling the position of the polishing tool in the contact direction in contact with the workpiece or the amount of protrusion or cutting in the contact direction of the abrasive material of the polishing tool; A program that functions as an input means for accepting input of conditions at the time of use and as a specifying means for specifying control information corresponding to the accepted conditions;
[26] A program executed on a computer device, the computer device being an input means for receiving input of conditions for polishing a workpiece with a polishing tool, and information regarding conditions for polishing the workpiece as input data, The position of the polishing tool in the contact direction in contact with the workpiece or the protrusion of the abrasive material of the polishing tool in the contact direction in order to keep the load applied to the polishing tool and/or the amount of change in load within a predetermined range when polishing under the above conditions. A program that functions as a specifying means for specifying control information under accepted conditions using a machine-learned predictive model using control information for controlling the amount or depth of cut as output data;
[27] A program to be executed on a computer device, the computer device being an input means for accepting input of conditions for polishing a workpiece with a polishing tool, and information regarding conditions for polishing the workpiece as input data, Controlling the position of the polishing tool in the contact direction in contact with the workpiece or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction in order to keep the cutting amount of the polishing tool into the workpiece within a predetermined range under the above conditions. A program that functions as a specifying means for specifying control information under accepted conditions using a machine-learned predictive model using control information as output data;
This can be achieved by

According to the present invention, it is possible to provide a system and a program that make it possible to maintain the machining accuracy of a workpiece even if the abrasive material wears out.

FIG. 3 is a diagram illustrating an example of machining a workpiece using a polishing tool according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the structure of a polishing tool according to an embodiment of the present invention. 5 is a flowchart of control information generation processing according to an embodiment of the present invention. It is a figure showing an example of a display screen concerning an embodiment of the present invention. It is a figure showing a material master table concerning an embodiment of the present invention. It is a figure showing the state of the burr which occurred in the work before processing concerning an embodiment of the present invention. It is a figure showing the workpiece after processing concerning an embodiment of the present invention. FIG. 3 is a diagram representing an edge quality master table according to an embodiment of the present invention. FIG. 3 is a diagram showing an example of a polishing tool master table according to an embodiment of the present invention. It is a figure showing a wear rate master table concerning an embodiment of the present invention. FIG. 3 is a diagram showing an example of a load and an amount of change in the load according to an embodiment of the present invention. 7 is a flowchart of control information specifying processing according to an embodiment of the present invention. FIG. 3 is a diagram representing a control information master table according to an embodiment of the present invention.

Hereinafter, modes for carrying out the present invention will be described in detail. Note that the present invention is not limited to the following embodiments, and can be implemented with appropriate changes as long as it does not go against the spirit of the present invention. Further, each process constituting the flowchart described below may be performed in any order as long as no contradiction or inconsistency occurs in the process contents. Further, a part of the process may be omitted or other processes may be added as long as there is no contradiction or inconsistency in the process content.

(system)
The system of the present invention includes at least one computer device. The computer device included in the system of the present invention may be only one computer device or may be a plurality of computer devices. The computer device included in the system of the present invention may be a computer device included in a machine tool. A computer device installed in a machine tool can control the machine tool and process a workpiece (workpiece).

Furthermore, the computer device provided in the system of the present invention (hereinafter also referred to as the computer device of the present invention) is not a computer device provided in a machine tool, but a computer capable of communication connection with a computer device provided in a machine tool. It may be a device.

The computer device of the present invention includes at least a control section, a RAM, and a storage section, each of which is connected by an internal bus. The control unit includes a CPU (Central Processing Unit) and a ROM (Read Only Memory), and executes a program stored in the storage unit to control the computer device. The control unit includes an internal timer that measures time. RAM (Random Access Memory) is a work area of the control unit. The storage unit is a storage area for storing programs and data. The control unit reads programs and data from the RAM and performs program execution processing.

The computer device of the present invention may include a display section and/or an input section. The display section displays various information such as the results of calculations in the control section. The display unit may be a touch panel including a touch sensor. This touch panel functions as an input section. The user can input information and operation instructions by operating the input unit.

The computer device of the present invention may include a communication interface. The communication interface can be connected to a communication network wirelessly or by wire, and can send and receive data to and from other computer devices via the communication network. Data received via the communication interface is loaded into the RAM, and arithmetic processing is performed by the control unit.

When the computer device of the present invention is a computer device included in a machine tool, the display section displays information such as a menu for a user to operate the machine tool. By selecting these displayed menus, the user can process the workpiece using the machine tool. In addition, control information is specified in the computer device installed in the machine tool, and according to the specified control information, the contact direction of the machine tool (the direction in which the abrasive material of the polishing tool is brought into contact with the workpiece and pushed into the workpiece) is determined. position (direction) can be controlled.

Furthermore, the computer device of the present invention may be included in a polishing tool holder, which will be described later. In this case, a microcomputer can be used as the computer device of the present invention. In the computer device provided in the polishing tool holder, control information is specified, and according to the specified control information, the contact direction of the abrasive material (the direction in which the abrasive material of the polishing tool can be brought into contact with the workpiece and pushed into the workpiece) is determined. ) can be controlled.

(polishing tool)
FIG. 1 is a diagram illustrating an example of machining a workpiece using a polishing tool according to an embodiment of the present invention. As shown in FIG. 1, the polishing tool 1 includes a polishing tool holder 2 and an abrasive material 6 that is detachably held in the polishing tool holder 2. The polishing tool holder 2 includes a large diameter portion 3, a sleeve 4, and a shank 5. The polishing tool holder 2 holds the abrasive material 6 such that the end portion of the abrasive material 6 protrudes from the sleeve 4 . When polishing is performed by rotating the polishing tool 1 and pushing the workpiece 7 in the direction of the rotation axis (that is, in a direction parallel to the axial direction of the shank 5), the rotation axis direction becomes the contact direction. However, in the following, the rotation axis direction will be referred to as the Z-axis direction (rotation axis direction).

The abrasive material 6 is used to polish the processed surface 8 of the workpiece 7, and is, for example, a brush-like abrasive that is formed into a brush by bundling a plurality of linear abrasive materials as shown in FIG. material, an elastic grindstone, etc. are used. The material of the workpiece 7 may be either metal or resin. The abrasive material 6 can be appropriately selected depending on the material of the workpiece 7.

When the workpiece 7 is processed by cutting, grinding, drilling, etc. using a machine tool, metal fuzz called "burrs" may be generated on the processed surface of the workpiece 7. By connecting the polishing tool 1 to a machine tool and rotating the polishing tool 1 clockwise or counterclockwise using the shank 5 as the axis (rotation axis) while bringing the abrasive material 6 into contact with the workpiece 7, the workpiece surface can be polished. 8 is polished, and burrs generated on the processed surface 8 can be removed. In this case, when the surface to be processed 8 is a flat surface, it is preferable that the abrasive material 6 is brought into contact with the workpiece 7 so that the rotation axis R is perpendicular to the surface to be processed 8. In addition, when the surface to be processed 8 is a curved surface, the abrasive material 6 is brought into contact with the workpiece 7 so that the rotation axis R is parallel to the normal line of the surface to be processed 8 at the contact point between the abrasive material 6 and the workpiece. It is preferable.

(polishing)
Incidentally, the polishing tool 1 is used with the shank 5 of the polishing tool 1 connected to the spindle of a machine tool. With the shank 5 of the polishing tool 1 connected to the spindle, the polishing tool 1 can be moved along the processing path by moving the spindle along a path set in advance by a program. As a result, the polishing tool 1 can polish the surface 8 of the workpiece 7 . The machining path of the polishing tool 1 by the machine tool can be controlled not only on the XY plane perpendicular to the Z-axis direction, but also the position in the Z-axis direction.

In polishing, the amount (hereinafter referred to as (referred to as the depth of cut) can be set to a predetermined value. For example, when using a polishing tool 1 having an abrasive material 6 with a protrusion of 5 mm, if the depth of cut is 2 mm, the distance between the workpiece surface 8 of the workpiece 7 and the tip of the sleeve 4 of the polishing tool holder 2 will be 3 mm. . The depth of cut is 0 mm, for example, when using the polishing tool 1 having the abrasive material 6 with a protrusion of 5 mm, and when the distance between the processed surface 8 of the workpiece 7 and the tip of the sleeve 4 of the polishing tool holder 2 is 5 mm. (That is, the state in which the tip of the abrasive material 6 is in contact with the surface to be processed 8 of the workpiece 7).

When the polishing process is performed, the abrasive material 6 is worn out, and the amount of protrusion of the abrasive material 6 becomes shorter. When the position of the polishing tool 1 in the Z-axis direction remains the same, when the protrusion amount of the abrasive material 6 becomes shorter due to the polishing process, the depth of cut becomes smaller. When the abrasive material 6 wears out and the depth of cut becomes zero, polishing cannot be performed. Therefore, it is necessary to maintain the depth of cut within a predetermined range (or a predetermined value) depending on the state of wear of the abrasive material 6 due to polishing.

As a method of adjusting this depth of cut within a predetermined range or a method of maintaining this depth of cut within a predetermined value, there is a method of changing the position of the polishing tool 1 in the Z-axis direction, or a method of changing the position of the abrasive tool 1 in the Z-axis direction. One example is a method of changing the amount of protrusion.

More specifically, as a method for adjusting the depth of cut within a predetermined range, when the depth of cut reaches a predetermined value through polishing, the position of the polishing tool 1 in the Z-axis direction is adjusted by a predetermined distance. One method is to move it to the workpiece 7 side. In addition, as a method for adjusting the depth of cut within a predetermined range, a polishing tool holder 2 is used which has a function of adjusting the amount of protrusion of the abrasive material 6 when the depth of cut reaches a predetermined value due to polishing. However, there is a method in which the abrasive material 6 is made to protrude from the sleeve 4 by a predetermined amount.

One way to maintain the depth of cut at a predetermined value is to continuously move the position of the polishing tool 1 in the Z-axis direction toward the workpiece 7 in accordance with the rate at which the abrasive material 6 wears and becomes shorter. As a method of maintaining the depth of cut at a predetermined value, the abrasive tool holder 2, which has a function of adjusting the protrusion amount of the abrasive material 6, is used to adjust the abrasive material 6 to the speed at which the abrasive material 6 wears and becomes shorter. One method is to make it continuously protrude from the sleeve 4.

The load applied to the polishing tool 1 changes depending on the depth of cut. Generally, when the depth of cut is large, the load applied to the polishing tool 1 becomes large. Furthermore, if the depth of cut is small, the load applied to the polishing tool 1 will be small. Therefore, by maintaining the cutting depth of the polishing tool 1 within a predetermined range (or a predetermined value), the load applied to the polishing tool 1 and/or the amount of change in the load can be kept within a predetermined range (or a predetermined value). can be maintained. Note that when the abrasive material 6 of the polishing tool 1 is worn and its length has become short, if polishing is performed with the same depth of cut as when the abrasive material length is long, the abrasive material 6 will be removed from the sleeve 4. Regardless of the amount of protrusion, the load applied to the polishing tool 1 may become large. In this way, when the abrasive material 6 of the polishing tool 1 wears out and the load applied to the polishing tool 1 becomes large regardless of the amount of protrusion of the abrasive material 6 from the sleeve 4, the measured value of the polishing tool 1 increases. A value corrected based on the load can be used as the load of the polishing tool 1. Different calculation formulas are used to correct the load depending on the diameter of the abrasive material 6 and the type of wire material. Note that the amount of change in load means, for example, the amount of change in load per unit time.

A known method may be used to measure the load applied to the polishing tool 1 and the amount of change in the load, and there are no particular limitations. As a method for measuring the load applied to the polishing tool 1 and the amount of change in the load, for example, the method described below is used.

FIG. 2 is a schematic diagram showing the structure of a polishing tool according to an embodiment of the present invention. FIG. 2 shows a cross-sectional view of the polishing tool 1 in a plane including the rotation axis R. As shown in FIG. In FIGS. 2(a) and 2(b), the abrasive material 6 is provided inside the large diameter portion 3 of the polishing tool holder 2 and the sleeve 4. As shown in FIGS. The end of the abrasive material 6 opposite to the side protruding from the sleeve 4 is held by the abrasive material holder 6a. The abrasive material holder 6a has a through hole 6b, and a feed shaft 3a connected to the large diameter portion 3 passes through the through hole 6b. The feed shaft 3a is coaxial with the shank 5 (rotation axis R). The abrasive material holder 6a is removably held inside the large diameter portion 3 of the polishing tool holder 2 via a mounting portion.

The polishing tool 1 includes a load detector D inside the large diameter portion 3. The load detector D can be, for example, a pressure sensor, a vibration detector, or a sonic detector that detects the amplitude of sound generated in the polishing tool. When the load detector D is a pressure sensor, the load detector D contacts the feed shaft 3a from the rear Z1 and detects the pressure in the Z-axis direction applied to the feed shaft 3a.

The polishing tool holder 2 used to detect the load includes a control system including at least a control section including a CPU, a storage section connected to the control section, and a timer. A load detector D is connected to the input side of the control section. A motor is connected to the output side of the control section. The polishing tool holder 2 also includes a motor battery that supplies power to the motor, and a control battery that supplies power to the control unit and the timer. The motor battery and the control battery can be charged from outside by connecting a cable.

During polishing using the polishing tool 1, the control section detects the output (load) from the load detector D and sequentially calculates the amount of load change per predetermined unit time. More specifically, the control unit acquires the load output from the load detector D at regular intervals, and also acquires the amount of load change per unit time from the three loads acquired in order in time series. do. Here, the load can be acquired at intervals of 0.001 seconds to 1 second. The unit time for calculating the amount of change in load is three times the time it takes to obtain the load. Calculation of the amount of change in load is performed at the same interval as the interval at which the load is acquired.

(Controlling the position of the polishing tool in the Z-axis direction)
A polishing tool 1 is attached to a spindle of a machine tool. By rotating this spindle and rotating the polishing tool 1, the workpiece 7 can be polished. The control unit of the machine tool controls movement of the spindle according to control information of the machining path of the polishing tool 1. By moving the spindle, the polishing tool 1 can be moved along the processing path. The machining path of the polishing tool 1 can be controlled not only on the XY plane but also in the Z-axis direction.

(Control of protrusion amount of abrasive material)
In FIGS. 2(a) and 2(b), the abrasive material 6 is provided inside the large diameter portion 3 of the polishing tool holder 2 and the sleeve 4. As shown in FIGS. The end of the abrasive material 6 opposite to the side protruding from the sleeve 4 is held by the abrasive material holder 6a. The abrasive material holder 6a has a through hole 6b, and a feed shaft 3a connected to the large diameter portion 3 passes through the through hole 6b. The feed shaft 3a is coaxial with the shank 5 (rotation axis R).

FIG. 2(a) shows the case where the total length of the abrasive material 6 provided inside the sleeve 4 of the polishing tool is La, and FIG. 2(b) shows the case where the total length of the abrasive material 6 provided inside the sleeve 4 of the polishing tool is The case of Lb whose total length is shorter than La is shown. A case will be described in which the total length of the abrasive material 6 is changed to the same protrusion amount as when the total length of the abrasive material 6 is La, when the total length of the abrasive material 6 is Lb.

The amount of protrusion of the abrasive material 6 is determined from the side of the large diameter portion 3 where the sleeve 4 connects the abrasive material holder 6a with the abrasive material 6 along the feed shaft 3a (rotation axis R) (in both the upward direction and the Z1 direction in FIG. 2). ), or by moving it toward the opening of the sleeve 4, that is, toward the tip of the abrasive material 6 (downward in FIG. 2, also referred to as the Z2 direction) (see FIG. 2). The structure is not particularly limited as long as the abrasive material holder 6a can be moved along the feed shaft 3a, but for example, the feed shaft 3a and the through hole 6b of the abrasive material holder 6a are threaded, A mechanism can be adopted in which the abrasive material holder 6a can be moved along the feed shaft 3a by turning a screw.

The amount of protrusion can also be changed manually. In the case of manual operation, for example, a mechanism may be used in which the large diameter portion 3 is provided with a dial, and when the dial is turned, a screw turns, and the abrasive material holder 6a moves along the feed shaft 3a. Further, in the case of automatically changing the amount of protrusion, the polishing tool holder 2 may be provided with a microcomputer including at least a control section and a communication section, and the large diameter section 3 may be provided with a battery and a motor. In this case, the amount of protrusion can be changed by a mechanism in which a motor is driven by a battery to rotate a dial and move the abrasive material holder 6a along the feed shaft 3a based on instructions from the control section of the microcomputer. .

By the way, in FIG. 2(a), the abrasive material holder 6a is at the highest position, and if the abrasive materials 6 have the same length, the amount of protrusion is the smallest. On the other hand, in FIG. 2(b), the abrasive material holder 6a is moving downward. The amount of protrusion of the abrasive material 6 also varies depending on the length of the worn abrasive material 6. Therefore, when the polishing holder 6a as shown in FIG. 2(b) is moved downward from the uppermost position in FIG. The control is performed by controlling the amount of movement of the polishing holder 6a, that is, the value of (Lb-La) (that is, the amount of movement of the polishing holder 6a).

The system according to the first embodiment and the second embodiment, which will be described later, adjusts the abrasive material 6 of the polishing tool 1 according to the conditions when polishing the workpiece (hereinafter sometimes referred to as processing conditions). It is possible to determine the wear rate of In the case of a system that specifies the wear rate of the abrasive material 6 of the polishing tool 1 according to such processing conditions, the position of the polishing tool 1 in the Z-axis direction or the Z-axis of the abrasive material 6 is determined based on the identified wear rate. By controlling the amount of protrusion in the axial direction, the amount of cut into the work by the polishing tool 1 can be maintained within a predetermined range (or a predetermined value), or the load applied to the polishing tool 1 or the load per unit time can be maintained. It becomes possible to maintain the amount of change within a predetermined range (or a predetermined value).

In a system that can identify the wear rate of the abrasive material 6 of the polishing tool 1 according to processing conditions, a machine tool to which the polishing tool 1 is attached functions as a computer device that identifies the wear rate of the abrasive material 6 of the polishing tool 1. You can. In this case, the machine tool specifies the wear rate of the abrasive material 6 of the polishing tool 1, and further, based on the specified wear rate, the machine tool adjusts the amount of cut into the workpiece 7 of the polishing tool 1 to a predetermined value. The polishing tool 1 is adjusted so that the load applied to the polishing tool 1 or the amount of change in the load per unit time is within a predetermined range (or a predetermined value). The position in the Z-axis direction can be controlled.

In addition, in a system that can specify the wear rate of the abrasive material 6 of the polishing tool 1 according to processing conditions, a computer device different from the machine tool functions as a computer device that specifies the wear rate of the abrasive material 6 of the polishing tool 1. You may. In this case, this computer device specifies information regarding the wear rate of the abrasive material 6 of the polishing tool 1, and controls the position of the polishing tool 1 in the Z-axis direction based on the information regarding the identified wear rate. information or control information for controlling the amount of protrusion or cutting in the Z-axis direction of the abrasive material 6, and the generated control information can be transmitted to the machine tool or the polishing tool holder 2. The machine tool controls the position of the polishing tool 1 in the Z-axis direction according to the received control information. Further, in the polishing tool holder 2, the amount of protrusion or the amount of cut in the Z-axis direction of the abrasive material 6 is controlled according to the received control information.

In this case, the machining conditions are input into the machine tool or a device different from the machine tool, the input machining conditions are sent to the computer device, and the computer device calculates the wear rate based on the received machining conditions. Control information may be generated by specifying information related to

This computer device can communicate with multiple machine tools, receive machining conditions from multiple machine tools, and send control information generated based on the received machining conditions to the corresponding machine tool. can do.

Further, in a system that can specify the wear rate of the abrasive material 6 of the polishing tool 1 according to processing conditions, a computer device different from the machine tool functions as a device that specifies the wear rate of the abrasive material 6 of the polishing tool 1. In this case, information regarding the wear rate of the abrasive material 6 of the specified polishing tool 1 may be transmitted to the machine tool. In this case, the machine tool uses control information for controlling the position of the polishing tool 1 in the Z-axis direction, or the protrusion amount or cutting depth of the abrasive material 6 in the Z-axis direction, based on the received information regarding the wear rate. It is possible to generate control information for controlling the amount, and control the position of the polishing tool 1 in the Z-axis direction, or the protrusion amount or cutting amount of the abrasive material 6 in the Z-axis direction, according to the generated control information. can.

In this case, the machining conditions are input into the machine tool or a device different from the machine tool, the input machining conditions are sent to the computer device, and the computer device calculates the wear rate based on the received machining conditions. You may also specify information about

This computer device is capable of communication connection with multiple machine tools, receives machining conditions from multiple machine tools, and transmits information on the wear rate identified based on the received machining conditions to the corresponding machine tool. can be sent to.

The systems according to the third embodiment and the fourth embodiment described later are configured to keep the load applied to the polishing tool 1 during polishing and/or the amount of change in the load within a predetermined range depending on the processing conditions. It is possible to specify control information for controlling the position of the polishing tool 1 in the Z-axis direction or the amount of protrusion or cutting in the Z-axis direction of the abrasive material 6 of the polishing tool 1. In addition, the systems according to the third embodiment and the fourth embodiment are capable of controlling the polishing tool 1 in the Z-axis direction in order to keep the cutting amount of the polishing tool 1 into the workpiece within a predetermined range according to the machining conditions. It is possible to specify control information for controlling the position or the amount of protrusion or depth of cut in the Z-axis direction of the abrasive material 6 of the polishing tool 1.

In such a system that specifies control information according to processing conditions, the machine tool to which the polishing tool 1 is attached may function as a computer device that specifies control information. In this case, the machine tool controls the position of the polishing tool 1 in the Z-axis direction, or the amount of protrusion or cutting in the Z-axis direction of the abrasive material 6 included in the polishing tool 1, according to the specified control information.

Furthermore, in such a system that specifies control information according to processing conditions, a computer device different from the machine tool may function as a computer device that specifies control information for the abrasive material 6 of the polishing tool 1. In this case, this computer device can transmit the specified control information to the machine tool or polishing tool holder 2. The machine tool controls the position of the polishing tool 1 in the Z-axis direction according to the received control information. Further, in the polishing tool holder 2, the amount of protrusion or the amount of cutting in the Z-axis direction of the abrasive material 6 is controlled according to the received control information.

In this case, the machining conditions are input into the machine tool or a device different from the machine tool, the input machining conditions are sent to the computer device, and the computer device generates control information based on the received machining conditions. may be generated.

The system of the first embodiment, which will be described later, uses information regarding the wear rate of the abrasive material 6 of the polishing tool 1 under the processing conditions in a computer device in association with information regarding the processing conditions when polishing the workpiece 7 with the polishing tool 1. Information is stored in a master table (wear rate table to be described later), and the wear rate of the abrasive material 6 of the polishing tool 1 is specified by referring to the master table according to the input machining conditions. The information regarding the machining conditions and the information regarding the wear rate stored in this master table may be added using information received from other devices. For example, a workpiece is polished in another device, and information regarding the processing conditions at this time and information regarding the measured wear rate are associated and stored in a master table of the computer device. By doing so, the accuracy of the specified wear rate becomes higher.

The system of the second embodiment, which will be described later, uses a computer device as input data regarding processing conditions when polishing a workpiece 7, and outputs information regarding the wear rate of the abrasive material 6 of the polishing tool 1 under these processing conditions. The wear rate of the abrasive material 6 under the input machining conditions is specified using a machine-learned predictive model (learning model) as data. Here, information received from another device may be used as training data for this prediction model. For example, when the workpiece 7 is polished by another device, information regarding processing conditions is used as input data, and information regarding the measured wear rate is used as output data. By doing so, the accuracy of the specified wear rate becomes higher.

A system according to a third embodiment, which will be described later, uses a computer device to associate control information regarding the processing conditions when polishing the workpiece 7 with the polishing tool 1 and create a master table (control information table, which will be described later). ), and the control information is specified by referring to the master table according to the input processing conditions. The information regarding processing conditions and control information stored in this master table may be added using information received from other devices. For example, when a workpiece is polished by another device, information regarding the processing conditions at this time and the polishing tool 1 are provided so that the load applied to the polishing tool 1 and/or the amount of change in the load is within a predetermined range. Control information when controlling the position of the workpiece 7 in the Z-axis direction or the amount of protrusion or cutting in the Z-axis direction of the abrasive material 6 is associated and stored in the master table of the computer device. For example, when the workpiece 7 is polished by another device, information regarding the machining conditions at this time and the position of the polishing tool 1 on the workpiece in the Z-axis direction so that the depth of cut falls within a predetermined range. Alternatively, control information when controlling the amount of protrusion or depth of cut of the abrasive material 6 in the Z-axis direction is associated and stored in addition to the master table of the computer device. By doing so, the accuracy of the specified control information becomes higher.

The system of the fourth embodiment, which will be described later, uses information regarding machining conditions when polishing a workpiece 7 as input data in a computer device, and calculates the load applied to the polishing tool 1 and/or the amount of change in the load under these machining conditions. Under the input machining conditions, a machine-learned prediction model is used as output data that is control information that allows the depth of cut to be within a predetermined range, or control information that allows the depth of cut to be within a predetermined range. This specifies control information for the abrasive material 6. Here, information received from another device may be used as training data for this prediction model. For example, control information that uses information regarding processing conditions as input data when polishing the workpiece 7 is executed by another device and sets the load applied to the polishing tool 1 and/or the amount of change in the load within a predetermined range; Alternatively, control information that sets the depth of cut of the polishing tool 1 within a predetermined range is used as output data. By doing so, control information that allows the load applied to the polishing tool 1 and/or the amount of change in the load to be within a predetermined range, or the amount of cut of the polishing tool 1 to be within a predetermined range, depending on the input processing conditions, can be provided. It becomes possible to obtain control information that falls within the range.

<First embodiment>
In the first embodiment, information regarding the wear rate of the abrasive material of the polishing tool under the processing conditions is stored in association with information regarding the processing conditions when polishing the workpiece with the polishing tool, and the workpiece is polished. This invention relates to a system for identifying the wear rate of abrasive material corresponding to the actual machining conditions. Based on the specified wear rate, the system adjusts the load applied to the polishing tool and/or the amount of change in load to be within a predetermined range during polishing under the processing conditions, or adjusts the cutting speed of the polishing tool to the workpiece. Control information is generated for controlling the position of the polishing tool in the contact direction in contact with the workpiece, or the protrusion amount or incision amount of the abrasive material in the contact direction so that the depth of the abrasive material falls within a predetermined range.

FIG. 3 is a flowchart of control information generation processing according to the embodiment of the present invention. In the following, a case will be described in which a computer device installed in a machine tool identifies the wear rate and generates control information. First, a user inputs various machining conditions via a display unit provided on a machine tool. Any conditions can be input as the processing conditions. The machining conditions to be input may be the conditions for actually polishing the workpiece, or may be hypothetical conditions for estimating the wear rate etc. without actually machining the workpiece.

Processing conditions are conditions when polishing a workpiece, and are conditions that can affect the processing of the workpiece and the wear of the abrasive material. Examples of processing conditions include the material and physical properties of the workpiece, the type and physical properties of the polishing tool used for processing, the state of the workpiece before processing such as the state of burrs, and the quality of the workpiece after processing. In addition to these conditions, the processing conditions may also include conditions related to the environment in which the workpiece is processed (temperature, humidity, etc.). The input conditions are stored in the storage section of the machine tool. In the following, a case will be described in which information about the workpiece, the state of burrs before processing, and the quality after processing are input as processing conditions.

FIG. 4 is a diagram showing an example of the display screen of the display unit according to the embodiment of the present invention. The display screen 50 is configured such that the user can enter information 51 regarding the workpiece, the state of burrs 52, and the quality after processing 53 by selecting numerical values or numerical values for the processing conditions for each condition input by the user. . The input of each condition will be explained below.

The input of information 51 regarding the work is accepted by the user's operation on the display unit (step S1). The information regarding the workpiece includes information regarding the hardness and/or tensile strength of the workpiece, and specific cutting resistance. If the hardness value is proportional to the tensile strength value, the tensile strength may be calculated from the hardness, or the hardness may be calculated from the tensile strength, and the input of either information may be accepted. You can. Furthermore, it may be possible to receive input of information regarding the surface properties of the surface of the object to be machined (whether or not it is a material surface, surface roughness, etc.). That is, the information regarding the workpiece includes material properties that represent characteristics based on the quality of the material that constitutes the workpiece.

FIG. 5 is a diagram showing a material master table according to an embodiment of the present invention. The material master table 60 is stored in the storage section of the machine tool. The material master table 60 stores hardness 63, tensile strength 64, and specific cutting resistance 65 for each workpiece material 61 in association with a classification code 62. The material 61 of the workpiece is classified into seven series based on the selection criteria for cemented carbide of ISO and JIS-B50431. The hardness 63, the tensile strength 64, and the specific cutting resistance 65 may each be set to values measured by a predetermined measurement method. As the information 51 regarding the workpiece, the material 61 and classification code 62 shown in FIG. 5 may be input (FIG. 4). The user can set conditions by simply inputting the material 61 and classification code 62 along the material master table 60 without inputting the physical properties of the material 61.

Next, input of information regarding the burr state 52 of the workpiece before processing is accepted by the user's operation on the display unit (step S2). Next, input of information regarding the quality 53 after processing is accepted by the user's operation on the display unit (step S3). FIG. 6 is a diagram showing the state of burrs generated on the workpiece before processing according to the embodiment of the present invention. FIG. 6A shows a vertical burr that is a burr that protrudes in the vertical direction of the upper surface of the workpiece. In the case of vertical burrs, the length of the burr in the horizontal direction on the top surface of the workpiece is called the ``burr thickness,'' and the length of the burr in the vertical direction of the workpiece is called the ``burr height.'' FIG. 6(b) shows horizontal burrs that are burrs that protrude horizontally from the upper surface of the workpiece. In the case of horizontal burrs, the length of the burr in the horizontal direction on the top surface of the workpiece is called the "burr height," and the length of the burr in the vertical direction on the top surface of the workpiece is called the "burr thickness." Burrs generated by processing such as cutting and drilling can be classified as either vertical burrs or horizontal burrs.

FIG. 7 is a diagram showing a workpiece after processing according to an embodiment of the present invention. FIGS. 7A and 7B are horizontal views of the edge of the workpiece after processing. Here, the edge is the intersection of two surfaces, one parallel to the vertical direction and the other perpendicular to the workpiece. Furthermore, the intersection refers to a ridgeline.

FIG. 7(a) shows the state after machining when the workpiece is machined so that it has a gentler slope with respect to the top surface than with the side surface. The workpiece in FIG. 7A is machined so that the top surface quality, which is the length after processing in the horizontal direction of the top surface of the workpiece, is longer than the depth quality, which is the length after processing in the vertical direction of the top surface of the workpiece. FIG. 7(b) shows the state after machining when the workpiece is machined to have a gentler inclination with respect to the side surface than with the top surface. In the workpiece shown in FIG. 7(b), the depth quality is machined longer than the top surface quality.

FIG. 8 is a diagram representing an edge quality master table according to an embodiment of the present invention. In the edge quality master table 70, a dimension 72 is stored in association with an edge quality designation 71. Edge quality designation 71 is, for example, based on the edge where the top surface and side surface of the workpiece intersect, where the angle between the top surface and the side surface is 90°, that is, the edge is a so-called pin angle. When set to "0", the height and thickness of the burr before processing are set in the positive direction, and the dimensions of the top surface quality and depth quality after processing are set in the negative direction to represent the edge quality standard. This is what I did. The edge quality is defined in the Japanese Industrial Standards (see JIS B0721-2004), but is not limited thereto, and an independently defined edge quality standard may be used.

To explain in more detail using the edge quality master table 70, for example, if the edge quality designation 71 is "minus 2", the dimension 72 should be -0.2 mm or less calculated from the reference point. shows. Similarly, when the edge quality designation 71 is "plus 1", this indicates that the dimension 72 is greater than 0 and less than +0.2 mm calculated from the reference point. When the height of the vertical burr shown in FIG. 6A is +0.3 mm and the thickness is +0.1 mm, the burr height is "plus 2" and the burr thickness is "plus 1". Similarly, if the top surface quality shown in FIG. 7(a) is -0.4 mm and the depth quality is -0.1 mm, the top surface quality is "minus 2" and the depth quality is "minus 1". becomes.

The information regarding the state of the burr input in step S2 is, for example, the burr thickness and burr height of the vertical burr shown in FIG. 6(a) or the horizontal burr shown in FIG. 6(b), and the burr height shown in FIG. This is information representing which dimension 72 of the edge quality master table this corresponds to. That is, the edge quality designation 71 corresponding to the corresponding dimension 72 can be set as the burr state of the edge portion. For example, if the height of the vertical burr shown in FIG. 6(a) is +0.3 mm and the thickness is +0.1 mm, in step S2, the burr height is "plus 2" and the burr thickness is "Plus 1" is input. The size of the burr may be measured automatically using tracing control or a visual sensor, or may be measured manually by the user.

The information regarding the quality after processing input in step S3 is, for example, whether the top surface quality or depth quality shown in FIG. 7(a) or FIG. 7(b) is in the edge quality master table shown in FIG. The edge quality designation 71 is used to indicate whether the edge quality corresponds to the dimension 72 of . That is, the edge quality designation 71 corresponding to the corresponding dimension 72 can be set as the burr state of the edge portion. Here, the user performing the processing can directly input the numerical value of the required edge quality, or select one of the edge quality designations 71 by referring to the dimensions 72 stored in the edge quality master table 70. , the quality after processing may be specified. By designing in this way, the user can carry out processing only by considering the quality after processing, and can set processing conditions intuitively and efficiently.

If there are burrs of multiple sizes, the maximum size of the burr may be used as information to be input. Further, by inputting measured data, the edge quality may be designed to be automatically selected by referring to the edge quality master table 70.

Note that it is not possible to set information regarding the quality after processing that would result in a lower standard than the information regarding the state of burrs received in step S2. For example, the criteria can be set such that "minus 2" is the lowest and "plus 2" is the highest. At this time, if the burr condition is minus 1, the quality after processing cannot be set to plus 1. That is, it is not possible to increase the quality after processing with respect to the burr state.

In the first embodiment, the processing conditions may include information regarding the polishing tool used for processing. The selection may be made based on the information regarding the work accepted in step S1 or the information regarding the state of the burr accepted in step S2.

When inputting information regarding the polishing tool used for processing as processing conditions, a polishing tool master table as shown in FIG. 9 can be prepared. In the polishing tool master table 80, for example, a polishing tool diameter 82, a wire type 83, a wire length 84, and a segment number 85 are stored in association with the polishing tool No. 81.

The polishing tool diameter 82 represents the diameter of the blade or brush portion of the polishing tool that is used for processing. The wire rod type 83 represents the material of the blade portion and brush portion used to perform processing. The wire length 84 represents the length of the blade portion or brush portion used to perform processing. The number of segments 85 represents the number of brush bundles when the polishing tool has a brush portion. In addition to this information, whether or not the use of the material 61 stored in the material master table 60 is appropriate may be stored for each polishing tool No. 81. The display section displays information registered in the polishing tool masterable about the plurality of polishing tools 1, such as polishing tool No. 81, polishing tool diameter 82, wire type 83, wire length 84, and/or segment number 85, It is possible to input which of these polishing tools 1 to use.

Next, the machine tool receives input of polishing conditions 54 via the display section (step S4). Specifically, the polishing conditions 54 determine the relative positional relationship and speed between the workpiece and the polishing tool used for processing, including the rotational speed of the workpiece or polishing tool, the feed rate of the workpiece or polishing tool, and conditions such as depth of cut. All of these polishing conditions 54 can be treated as variables, but for example, it is also possible to treat one of the polishing conditions 54, such as the rotational speed of the polishing tool, as a variable and the other conditions as constants.

Rotation speed refers to the speed at which a workpiece or polishing tool rotates per unit time, and is also referred to as rotation speed. The feed speed refers to the relative speed in the XY plane between the polishing tool used for machining and the workpiece. As explained above, the depth of cut refers to the amount by which the tip of the polishing tool is pushed into the surface of the workpiece in one machining process.

When the machine tool receives the input of information from steps S1 to S4, the control unit of the machine tool refers to the wear rate master table and specifies information regarding the wear rate of the abrasive material corresponding to the accepted machining conditions. (Step S5). For example, the material of the workpiece is "stainless steel", the height of the burr is "plus 2", the thickness of the burr is "plus 2", the top surface quality is "minus 2", and the depth quality is "minus 2". When the polishing condition is "4000/min" and is input in steps S1 to S4, the wear rate per unit distance is specified as 0.6 mm/mm. The "wear rate per unit distance" is determined by dividing the amount of wear of the abrasive material by the machining distance of the workpiece. Here, the processing distance of the workpiece is the distance that the workpiece has been processed by the polishing tool. For example, when processing a workpiece by moving a polishing tool while the workpiece is fixed, the moving distance of the polishing tool on the XY plane becomes the processing distance of the workpiece. Further, for example, when processing a workpiece by moving it with a fixed polishing tool, the moving distance of the polishing tool on the XY plane becomes the processing distance of the workpiece. When machining with a fixed workpiece, if the moving distance of the abrasive tool on the XY plane is 10 mm and the abrasive material of the abrasive tool wears 5 mm due to this machining, the wear rate per unit distance is 0.5 mm. /mm.

FIG. 10 is a diagram representing a wear rate master table according to an embodiment of the present invention. In the wear rate table 90, for example, a wear rate 95 is stored in association with a workpiece material 91, a burr condition 92, a post-processing quality 93, and a polishing condition 94. The burr state 92 includes a burr height 92a and a burr thickness 92b. The burr height 92a and the burr thickness 92b are registered using the edge quality designation 71. The post-processing quality 93 includes a top surface quality 93a and a depth quality 93b. Top surface quality 93a and depth quality 93b are also registered under edge quality designation 71. In the polishing conditions 94, elements of the polishing conditions 54 that affect the wear rate are registered. The wear rate 95 is, for example, the length (or amount of wear) of the abrasive material of the polishing tool per unit distance, and is based on the material 91 of a given workpiece, the state of burrs 92, the quality after processing 93, and the polishing Under condition 94, the wear rate of the abrasive material when a workpiece was actually polished by rotating the polishing tool was measured and stored in advance. In step S5, the wear rate 95 corresponding to the machining conditions input in steps S1 to S4 is specified. The wear rate 95 is defined as the length (or amount of wear) of the abrasive material of the polishing tool per unit time for a given workpiece material 91, burr condition 92, post-processing quality 93, and polishing conditions 94. The wear rate of the abrasive material may be measured and stored in advance when the workpiece is actually polished by rotating the polishing tool.

Based on the information on the identified wear rate, the load applied to the polishing tool and/or the amount of change in load can be maintained within a predetermined range (or a predetermined value), or the depth of cut of the polishing tool can be maintained within a predetermined range. The position of the polishing tool in the Z-axis direction or the amount of protrusion or depth of cut in the Z-axis direction of the abrasive material (that is, the value of (Lb-La)) is controlled so that it can be maintained within the range (predetermined value). Control information for this purpose is generated (step S6).

FIG. 11 is a diagram showing an example of the load and the amount of change in the load according to the embodiment of the present invention. In FIG. 11, the horizontal axis is time, and the vertical axis is the load amount of the abrasive material 6 applied to the polishing tool. Polishing is started with the depth of cut input by the user as processing conditions. The depth of cut at the start of polishing becomes the upper limit of the predetermined range of depth of cut. The predetermined range of the depth of cut may be automatically set based on the upper limit of the depth of cut, or the user may input not only the upper limit but also the lower limit of the depth of cut as machining conditions. Good too. When automatically setting the lower limit of the depth of cut based on the upper limit of the depth of cut, the lower limit may be the value obtained by subtracting a predetermined value from the upper limit. It may be calculated by multiplying by a smaller coefficient.

As shown in FIG. 11, at the start of polishing, the load applied to the polishing tool 1 is at the upper limit value. When the position of the polishing tool 1 in the Z-axis direction is constant and the amount of protrusion of the abrasive material 6 in the Z-axis direction is constant, as the processing of the workpiece 7 by the polishing tool 1 progresses, the abrasive material 6 wears out. The depth of cut becomes smaller. When the depth of cut becomes smaller and reaches the lower limit value of the depth of cut, the load applied to the polishing tool 1 also reaches the lower limit value. Here, in order to maintain machining accuracy, the position of the polishing tool 1 in the Z-axis direction may be controlled to approach the workpiece 7 while continuing polishing, or the abrasive material 6 may be continuously moved closer to the workpiece 7. By controlling the amount of protrusion in the Z-axis direction to be large, the amount of cut increases, and the amount of load applied to the polishing tool 1 increases accordingly.

When the depth of cut increases and reaches the upper limit value of the depth of cut, the load on the polishing tool 1 also reaches the upper limit value. When the upper limit of the depth of cut is reached, the depth of cut is reduced by stopping the movement of the polishing tool 1 in the Z-axis direction or by stopping the increase in the protrusion amount of the abrasive material 6 in the Z-axis direction. changes from increasing to decreasing. By repeating these controls, the depth of cut, the load applied to the polishing tool 1, and/or the amount of change in the load can be maintained within a predetermined range.

In step S6, based on the identified wear rate, for example, by repeating the control described above, the depth of cut can be maintained within a predetermined range, or the load and the amount of change in load can be maintained within a predetermined range. Control information regarding the position of the polishing tool 1 in the Z-axis direction, or the amount of protrusion or depth of cut in the Z-axis direction of the abrasive material 6, which can be maintained within the range of , is generated. The machine tool processes the workpiece according to the control information.

In the first embodiment, information regarding the wear rate is determined by referring to the wear rate table when the control unit of the machine tool receives input of the material of the workpiece, the state of burrs, the quality after machining, and the polishing conditions. We have described the manner in which information regarding the wear rate stored in the speed table is specified. For example, the memory unit of a machine tool may store information regarding the material of the workpiece, the state of burrs, the quality after machining, the polishing conditions, and the wear rate. A predetermined relational expression is stored, and the control unit of the machine tool, based on the received input workpiece material, burr condition, post-processing quality, and polishing conditions, and the stored relational expression, It may also be an embodiment in which information regarding the wear rate is specified.

In the first embodiment, the input reception in steps S1 to S4 was explained as being received via the display section of the machine tool, but as described above, the input reception in steps S1 to S4 is accepted via the display section of the machine tool. It can be input. In addition to performing the input operation at a worksite where the machine tool is located, the input operation can also be performed at a location other than the worksite (for example, the location of the orderer who requests processing to the worksite where the machine tool is located). Further, the input reception in steps S1 to S4 may be performed by reading data.

<Second embodiment>
The second embodiment uses a machine-learned predictive model with input data as information regarding the processing conditions when polishing a workpiece and output data as information regarding the wear rate of the abrasive material of the polishing tool under the conditions. The present invention relates to a system for identifying information regarding the wear rate of an abrasive material under actual processing conditions. Based on the specified wear rate, the system adjusts the load applied to the polishing tool and/or the amount of change in load to be within a predetermined range during polishing under the processing conditions, or adjusts the cutting speed of the polishing tool to the workpiece. Control information is generated for controlling the position of the polishing tool in the contact direction in contact with the work, or the amount of protrusion or incision of the abrasive material in the contact direction so that the depth of the abrasive material falls within a predetermined range.

Below, a case will be explained in which a computer device installed in a machine tool identifies the wear rate and generates control information.

(prediction model)
In the second embodiment, the storage unit of the machine tool has input data as information regarding machining conditions when polishing a workpiece, and output data as information regarding the wear rate of the abrasive material of the polishing tool under the machining conditions. The machine learned prediction model is stored. Machine learning algorithms are not particularly limited, and known ones can be used, such as linear regression, multiple regression analysis, support vector machines, decision trees, random forests, and deep learning using multilayer neural networks. can be mentioned.

A multilayer neural network has an input layer, an output layer, and multiple intermediate layers. Weights are set for edges connecting nodes in each layer. A weight corresponding to each input to the node is set to the edge, and each input to the node is multiplied by the corresponding weight, and the value obtained by multiplying by these weights and the bias are added. The values obtained by the addition are subjected to non-linear transformation using an activation function to calculate an activation value. The calculated activation value becomes the input value passed to the next layer node. The number of intermediate layers can be designed as appropriate. The weights are optimized using the above training data.

The information regarding the processing conditions when polishing the workpiece as the input data includes, for example, the material of the workpiece, the condition of the burr (burr height, burr thickness), the quality after processing (top surface quality, depth quality), Information regarding the polishing tool and/or polishing conditions are included. On the other hand, as the output data, information regarding the wear rate of the abrasive material when a workpiece is actually polished under these processing conditions is stored.

(Specific processing of control information)
Information regarding the wear rate of the abrasive material can be specified in accordance with the flowchart of the control information specifying process shown in FIG. 3, as in the first embodiment. First, the machine tool receives input of information 51 regarding the workpiece via the display section (step S1). Next, the machine tool receives input of information regarding the burr state 52 of the work before machining via the display unit (step S2), and further receives input of information regarding the quality 53 after machining (step S3). . The machine tool receives input of polishing conditions 54 via the display section (step S4).

When the machine tool receives the input of information from steps S1 to S4, the control unit of the machine tool uses the information regarding the machining conditions for polishing the workpiece as input data, and selects the abrasive material of the polishing tool under the machining conditions. Information regarding the wear rate of the abrasive material corresponding to the accepted machining conditions is specified using a machine-learned predictive model using information regarding the wear rate of the abrasive material as output data (step S5). In the second embodiment, the load applied to the polishing tool and/or the amount of change in the load is adjusted to be within a predetermined range (or the amount of cut of the polishing tool is adjusted based on the information regarding the identified wear rate). Generate control information for controlling the position of the polishing tool in the Z-axis direction or the protrusion amount or depth of cut (that is, the value of (Lb-La)) in the Z-axis direction of the abrasive material (so that it falls within a predetermined range) (Step S6).

In the second embodiment, the input reception in steps S1 to S4 was explained as being received via the display section of the machine tool, but similarly to the first embodiment, communication with the machine tool is performed by wire or wirelessly. The input may be made on other devices where possible. Further, the input reception in steps S1 to S4 may be performed by reading data.

<First embodiment and second embodiment>
In the first embodiment and the second embodiment, a machine tool was used as an example of a computer device for specifying information regarding the wear rate of the present invention. The determination of information regarding the wear rate may be performed in a computer device. Further, the wear rate may be determined only by the machine tool, or may be determined by a system in which the machine tool and other devices cooperate.

Further, in the first embodiment and the second embodiment, the step of controlling the position of the polishing tool in the Z-axis direction or the protrusion amount or cutting amount of the abrasive material in the Z-axis direction is performed based on the control information. Although the explanation has been given as an example of execution in the control section of the machine tool, it may be controlled in the control section of a microcomputer provided in a polishing tool holder connected to the machine tool.

A case in which a machine tool executes a program in cooperation with other devices will be described below. When executing a program on a machine tool and a server device, the machine tool executes the process of accepting input of each condition in steps S1 to S4 in the control information specifying process shown in FIG. 3, and specifies information regarding the wear rate in step S5. It is conceivable that the process of doing so is executed in the server device. After identifying the information regarding the wear rate in the server device, the process of generating control information based on the identified information regarding the wear rate is executed in the server device and transmitted to the control unit of the machine tool, An embodiment may also be adopted in which the information regarding the wear rate obtained is transmitted to the control section of the machine tool, and the control section of the machine tool executes the step of generating control information.

The step of controlling the position of the polishing tool in the Z-axis direction or the amount of protrusion or depth of cut in the Z-axis direction of the abrasive material based on the control information generated by the server device or the control section of the machine tool is performed by the control section of the machine tool. The process may be executed in a microcomputer control section provided in a polishing tool holder connected to a machine tool. In this case, it is assumed that the generated control information is transmitted to the control unit of the machine tool or microcomputer that executes the control by communication means as necessary.

In addition to the machine tool and the server device, if the program is executed on another computer device that can communicate with the machine tool and the server device, input each condition in steps S1 to S4 in the control information specifying process shown in FIG. It is conceivable that the step of accepting the request is executed in another computer device, and the step of specifying the information regarding the wear rate in step S5 is executed in the server device. After identifying information regarding the wear rate in the server device, a step of generating control information based on the identified information regarding the wear rate is executed in the server device and transmitted to the control unit of the machine tool via the communication unit. The method is executed in the server device and transmitted to another computer device via the communication section, and the information regarding the identified wear rate is sent to the control section of the machine tool or other computer device via the communication section. The process of generating the control information may be performed in a control unit of a machine tool or another computer device.

The step of controlling the position of the polishing tool in the Z-axis direction or the protrusion amount or cutting amount of the abrasive material in the Z-axis direction based on control information generated in the control unit of the server device, machine tool, or other computer device, The process may be executed in a control unit of a machine tool, or may be executed in a control unit of a microcomputer provided in a polishing tool holder connected to a machine tool. In this case, it is assumed that the generated control information is transmitted to the control unit of the machine tool or microcomputer that executes the control by communication means as necessary.

<Third embodiment>
In the third embodiment, the load applied to the polishing tool and/or the amount of change in the load when polishing under the processing conditions is set within a predetermined range in association with information regarding processing conditions when polishing a workpiece with a polishing tool. control information for controlling the position of the polishing tool in the contact direction in contact with the workpiece or the amount of protrusion or cutting in the contact direction of the abrasive material of the polishing tool, and the processing conditions when polishing the workpiece. Relating to a system that identifies corresponding control information. Further, the third embodiment provides a polishing tool that is associated with information regarding processing conditions when polishing a workpiece with a polishing tool, and makes the depth of cut of the polishing tool into the workpiece within a predetermined range under the processing conditions. storing control information for controlling the position in the contact direction of contact with the workpiece or the protrusion amount of the abrasive material of the polishing tool in the contact direction, and specifying control information corresponding to processing conditions when polishing the workpiece; Regarding the system.

In the following, a case will be explained in which control information is specified in a computer device installed in a machine tool.

The descriptions of the material master table in FIG. 5, the edge quality master table in FIG. 8, and the polishing tool master table in FIG. 9 in the first embodiment apply similarly to the third embodiment. Further, the description of the state of burrs formed on the workpiece before machining in FIG. 6 and the description of the workpiece after machining in FIG. 7 in the first embodiment is similarly applied to the third embodiment. Furthermore, the description regarding the display screen in FIG. 4 in the first embodiment is similarly applied to the third embodiment.

Specifying the control information can be performed according to the flowchart of the control information specifying process shown in FIG. 12. First, the machine tool receives input of information 101 regarding the workpiece (step S11). Next, the machine tool receives input of information regarding the burr state 102 of the work before machining via the display section (step S12), and receives input of information regarding the quality 103 after machining (step S13). The machine tool receives input of polishing conditions 104 via the display section (step S14). Any processing conditions are input in steps S11 to S14. The machining conditions to be input may be conditions for actually polishing the workpiece, or may be hypothetical conditions for the purpose of predicting control information without actually machining the workpiece.

When the machine tool receives the input of information from step S11 to step S14, the control section of the machine tool refers to the control information master table to identify control information corresponding to the received machining conditions (step S15).

FIG. 13 is a diagram showing a control information master table according to an embodiment of the present invention. The control information master table 100 stores, for example, a wear rate 105 in association with a workpiece material 101, a burr state 102, a post-processing quality 103, and a polishing condition 104. The burr state 102 includes a burr height 102a and a burr thickness 102b. The burr height 102a and the burr thickness 102b are registered using the edge quality designation 71. The post-processing quality 103 includes a top surface quality 103a and a depth quality 103b. Top surface quality 103a and depth quality 103b are also registered under edge quality designation 71. In the polishing conditions 104, elements of the polishing conditions 54 that affect the wear rate are registered.

The control information 105 is information for setting the load applied to the polishing tool and/or the amount of change in the load within a predetermined range (or a predetermined value), or the amount of cut of the polishing tool within a predetermined range (or a predetermined value). This is information for controlling the position of the polishing tool in the Z-axis direction or the amount of protrusion or cutting in the Z-axis direction of the abrasive material of the polishing tool (that is, the value of (Lb-La)). The control information 105 includes the load and load applied to the polishing tool when the polishing tool is actually rotated and the workpiece is polished under a predetermined workpiece material 101, burr condition 102, post-processing quality 103, and polishing conditions 104. /Or control information capable of controlling the amount of change in load within a predetermined range, or control information capable of controlling the cutting depth of the polishing tool within a predetermined range, is stored in advance. In step S15, control information 105 corresponding to the machining conditions input in steps S11 to S14 is specified.

More specifically, the control information 105 includes the position of the polishing tool in the Z-axis direction or the value (Lb-La) of the abrasive material of the polishing tool in the Z-axis direction until a predetermined time has elapsed from the start of polishing. After a predetermined first time has elapsed without changing the position of the polishing tool in the Z-axis direction or the value of (Lb-La) in the Z-axis direction of the abrasive material possessed by the polishing tool, at a predetermined speed. , Furthermore, after a predetermined second time period has elapsed, control is repeated such as stopping the change in the position of the polishing tool in the Z-axis direction or the value of (Lb-La) in the Z-axis direction of the abrasive material possessed by the polishing tool. It is possible to carry out the execution.

The control unit of the machine tool controls the position of the polishing tool in the Z-axis direction, or the amount of protrusion or cutting depth of the abrasive material in the Z-axis direction. A machine tool processes a workpiece at a controlled position, protrusion amount, or depth of cut.

In the third embodiment, the input reception in steps S11 to S14 has been described as being received via the display section of the machine tool, but it is also possible to input the input from another device that can communicate with the machine tool by wire or wirelessly. can do. Further, the input reception in steps S11 to S14 may be performed by reading data.

<Fourth embodiment>
A fourth embodiment provides information regarding processing conditions when polishing a workpiece, and a polishing tool for keeping the load applied to the polishing tool and/or the amount of change in the load within a predetermined range when polishing under the processing conditions. Using a machine-learned predictive model as training data, the position in the contact direction of contact with the workpiece, or the control information for controlling the protrusion amount or depth of cut in the contact direction of the abrasive material of the polishing tool is used to calculate the actual The present invention relates to a system that specifies control information in processing conditions. Further, the fourth embodiment provides information regarding processing conditions when polishing a workpiece, and information regarding the contact between the polishing tool and the workpiece in order to make the amount of cut into the workpiece by the polishing tool within a predetermined range under the processing conditions. Control information for controlling the position in the contact direction or the amount of protrusion or depth of cut in the contact direction of the abrasive material of the polishing tool is used as training data to generate control information under actual machining conditions using a machine-learned predictive model. , regarding the system.

(prediction model)
In the fourth embodiment, the storage unit of the machine tool has input data information regarding processing conditions when polishing a workpiece, and when the workpiece is polished under the processing conditions, the load and/or load applied to the polishing tool and/or Or the position of the polishing tool in the Z-axis direction to keep the amount of change in load within a predetermined range, or the control information for controlling the amount of protrusion or depth of cut in the Z-axis direction of the abrasive material of the polishing tool. The machine learned prediction model is stored as In the fourth embodiment, the storage unit of the machine tool has input data information regarding processing conditions when polishing a workpiece, and when the workpiece is polished under the processing conditions, the depth of cut of the polishing tool is determined. Predictions made by machine learning using training data as the position of the polishing tool in the Z-axis direction or control information for controlling the protrusion amount or depth of cut in the Z-axis direction of the abrasive material of the polishing tool to achieve a predetermined range. The model is memorized. Machine learning algorithms are not particularly limited, and known ones can be used, such as linear regression, multiple regression analysis, support vector machines, decision trees, random forests, and deep learning using multilayer neural networks. can be mentioned.

The information regarding the processing conditions when polishing the workpiece as the input data includes, for example, the material of the workpiece, the condition of the burr (burr height, burr thickness), the quality after processing (top surface quality, depth quality), Information regarding the polishing tool and/or polishing conditions are included. On the other hand, the output data includes the upper or lower limit of the load applied to the polishing tool (the upper or lower limit of the amount of change in load) when actually polishing a workpiece under these processing conditions, and the Z-axis direction of the polishing tool. Control information on the position, or the amount of protrusion or depth of cut in the Z-axis direction of the abrasive material of the polishing tool is stored. Alternatively, the output data may include the upper limit or lower limit of the depth of cut of the polishing tool, the position of the polishing tool in the Z-axis direction, or the Z of the abrasive material possessed by the polishing tool when the workpiece is actually polished under these processing conditions. Control information on the amount of protrusion or the amount of cut in the axial direction is stored.

(Specific processing of control information)
Information regarding the wear rate of the abrasive material can be specified in accordance with the flowchart of the control information specifying process shown in FIG. 12, similarly to the third embodiment. First, the machine tool receives input of information 101 regarding the workpiece via the display section (step S11). Next, the machine tool receives input of information regarding the burr state 102 of the work before machining via the display section (step S12), and receives input of information regarding the quality 103 after machining (step S13). The machine tool receives input of polishing conditions 104 via the display section (step S14).

When the machine tool receives the input of information from steps S11 to S14, the control unit of the machine tool uses the information regarding the machining conditions for polishing the workpiece as input data, and selects the abrasive material of the polishing tool under the machining conditions. Control information corresponding to the received machining conditions is specified using a machine-learned predictive model using information regarding the wear rate as output data (step S15). In step S15, the polishing tool is adjusted in the Z-axis direction so that the load applied to the polishing tool and/or the amount of change in the load is within a predetermined range (or so that the cutting depth of the polishing tool is within a predetermined range). Control information for controlling the position or the amount of protrusion or depth of cut in the Z-axis direction of the abrasive material (that is, the value of (Lb-La)) is generated.

In the fourth embodiment, the training data of the predictive model stored in the storage unit of the machine tool may include information on the machining time from the start of machining and information on the machining path associated with the machining time. In this case, it becomes possible to more accurately specify information regarding the wear rate when a predetermined period of time has elapsed from the start of machining.

In the fourth embodiment, the input reception in steps S11 to S14 has been described as being received via the display section of the machine tool, but similarly to the first embodiment, communication with the machine tool is made by wire or wirelessly. The input may be made on other devices where possible. Alternatively, it may be configured to accept input without having a specific UI.

Furthermore, the input reception in steps S11 to S14 may be performed by inputting numerical values, selecting and inputting from a menu, or accepting input by reading data.

<Third embodiment and fourth embodiment>
In the third embodiment and the fourth embodiment, a machine tool was explained as an example of a device that executes a program for specifying information regarding the wear rate of the present invention, but it is possible to communicate with a machine tool by wire or wirelessly. The program may also be executed on other devices. Further, the program for specifying information regarding the wear rate may be executed by the machine tool alone, or may be executed in a system that cooperates with other devices that can communicate with the machine tool by wire or wirelessly. .

Further, in the third embodiment and the fourth embodiment, the step of controlling the position of the polishing tool in the Z-axis direction or the protrusion amount or cutting amount of the abrasive material in the Z-axis direction is performed based on the control information. Although the explanation has been given as an example of execution in the control section of the machine tool, it may be controlled in the control section of a microcomputer that includes at least a control section and a communication section provided in a polishing tool holder connected to the machine tool.

A case in which a machine tool executes a program in cooperation with other devices will be described below. When the program is executed on the machine tool and the server device, the machine tool executes the step of accepting input of each condition in steps S11 to S14 in the control information specifying process of FIG. 12, and the step of specifying the control information in step S15. It is conceivable to execute this on a server device. In the server device, after specifying the control information corresponding to the machining conditions, the control information is sent to the control unit of the machine tool, or to the control unit of the microcomputer provided in the polishing tool holder connected to the machine tool. It is also possible to adopt a mode in which the

In addition to the machine tool and the server device, when the program is executed on another computer device that can communicate with the machine tool and the server device, input of each condition in steps S11 to S14 in the control information specifying process in FIG. It is conceivable that the step of accepting the request is executed in another computer device, and the step of specifying the control information in step S15 is executed in the server device. In the server device, after specifying the control information corresponding to the machining conditions, the control information is sent to the control unit of the machine tool or to the control unit of the microcomputer provided in the polishing tool holder connected to the machine tool. It is also possible to adopt a mode in which the

The step of controlling the position of the polishing tool in the Z-axis direction or the protrusion amount or cutting amount of the abrasive material in the Z-axis direction may be performed in the control section of the machine tool, and may be performed in the control section of the machine tool, and may be performed in the polishing tool holder connected to the machine tool. It may be executed in a control unit of a microcomputer provided.

1 polishing tool, 2 polishing tool holder, 3 large diameter section, 3a feed shaft, 4 sleeve,
5 shank, 6 abrasive material, 6a abrasive material holder, 6b through hole, 7 workpiece,
8 workpiece surface, 50 display screen, 51 information about the workpiece, 52 burr condition,
53 Quality after processing, 54 Polishing conditions, 60 Material master table,
70 Edge quality master table, 80 Polishing tool master table,
90 Wear rate table, 100 Control information table

Claims

A system comprising at least one computer device, the system comprising:
a storage means for storing information regarding the wear rate of the abrasive material of the polishing tool under the conditions in association with information regarding the conditions for polishing the workpiece with the polishing tool;
an input means for accepting input of conditions for polishing a work;
and identifying means for identifying information regarding the wear rate of an abrasive material corresponding to accepted conditions.
A system comprising at least one computer device, the system comprising:
an input means for accepting input of conditions for polishing a workpiece with a polishing tool;
The wear rate of the abrasive material under the accepted conditions is calculated by using a machine learning prediction model with input data as input data regarding the conditions for polishing the workpiece and output data as information regarding the wear rate of the abrasive material of the polishing tool under the conditions. and identifying means for identifying information regarding speed.
Based on the information regarding the identified wear rate, the position of the polishing tool in the contact direction in contact with the workpiece is determined so that the load applied to the polishing tool and/or the amount of change in load during polishing under the above conditions is within a predetermined range. The system according to claim 1 or 2, further comprising a generating means for generating control information for controlling the amount of protrusion or the amount of cut in the contact direction of the abrasive material.
The system according to claim 3, further comprising a control means for controlling the position of the polishing tool in the contact direction, or the amount of protrusion or incision of the abrasive material in the contact direction, based on the generated control information.
4. The system according to claim 3, further comprising a transmitting means for transmitting the generated control information to another computer device different from the first computer device.
Based on the information regarding the identified wear rate, the position of the polishing tool in the contact direction where it contacts the workpiece, the protrusion amount of the abrasive material in the contact direction, or The system according to claim 1 or 2, further comprising a generating means for generating control information for controlling the depth of cut.
The system according to claim 6, further comprising a control means for controlling the position of the polishing tool in the contact direction, or the amount of protrusion or incision of the abrasive material in the contact direction, based on the generated control information.
7. The system according to claim 6, further comprising a transmitting means for transmitting the generated control information to another computer device different from the first computer device.
comprising a receiving means for receiving information regarding the conditions under which a workpiece was polished by a polishing tool in another device different from the first computer device, and information regarding the wear rate of the abrasive material of the polishing tool under the conditions;
The system according to claim 1, wherein the storage means stores the received information regarding the wear rate of the abrasive material in association with the received information regarding the conditions.
Information receiving means for receiving information regarding the conditions under which a workpiece was polished with a polishing tool in another device different from the first computer device, and information regarding the wear rate of the abrasive material of the polishing tool under the conditions,
3. The system according to claim 2, wherein the prediction model is machine-learned by using the received information regarding the conditions as input data and the received information regarding the wear rate of the abrasive material as output data.
A system comprising at least one computer device, the system comprising:
Contact with the work of the polishing tool in order to bring the load applied to the polishing tool and/or the amount of change in the load within a predetermined range when polishing the work under the conditions, in association with information regarding the conditions for polishing the work with the polishing tool. a storage means for storing control information for controlling the position in the contact direction or the protrusion amount or cutting amount in the contact direction of the abrasive material of the polishing tool;
an input means for accepting input of conditions for polishing a work;
and identifying means for identifying control information corresponding to accepted conditions.
A system comprising at least one computer device, the system comprising:
In association with information regarding the conditions for polishing a workpiece with a polishing tool, the position of the polishing tool in the contact direction in contact with the workpiece or the polishing tool for making the amount of cut into the workpiece by the polishing tool within a predetermined range under the conditions. storage means for storing control information for controlling the amount of protrusion or the amount of cut in the contact direction of the abrasive material;
an input means for accepting input of conditions for polishing a work;
and identifying means for identifying control information corresponding to accepted conditions.
A system comprising at least one computer device, the system comprising:
an input means for accepting input of conditions for polishing a workpiece with a polishing tool;
The contact direction of the polishing tool with the workpiece is input data regarding the conditions for polishing the workpiece, and the contact direction of the polishing tool with the workpiece is used to keep the load applied to the polishing tool and/or the amount of change in load within a predetermined range when polishing under the conditions. Identification of specifying control information under the received conditions using a predictive model that is machine learned with output data as control information for controlling the position of the abrasive tool or the amount of protrusion or depth of cut in the contact direction of the abrasive material of the polishing tool. A system comprising means.
A system comprising at least one computer device, the system comprising:
an input means for accepting input of conditions for polishing a workpiece with a polishing tool;
Information regarding the conditions for polishing the workpiece is input data, and the position of the polishing tool in the contact direction in contact with the workpiece or the position of the polishing tool in order to make the cutting amount of the polishing tool into the workpiece within a predetermined range under the conditions. A system comprising a specifying means for specifying control information under accepted conditions using a predictive model machine-learned using control information for controlling the protrusion amount or the cutting amount in the contact direction of the abrasive material as output data.
Any one of claims 11 to 14, further comprising a control means for controlling the position of the polishing tool in the contact direction in contact with the workpiece, or the amount of protrusion or incision of the abrasive material in the contact direction, based on the specified control information. system described in.
15. The system according to claim 11, further comprising a transmitting means for transmitting the specified control information to another computer device different from the first computer device.
Information regarding the conditions under which the workpiece was polished with a polishing tool in another device different from the computer device 1 above, and the load applied to the polishing tool and/or the amount of change in the load when polishing under the conditions, within a predetermined range. information receiving means for receiving information regarding the position of the polishing tool in the contact direction in contact with the work, or the amount of protrusion or the amount of cut in the contact direction of the abrasive material of the polishing tool;
12. The storage means stores information regarding the received position of the polishing tool in the contact direction or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction in association with the received information regarding the condition. system.
Information regarding the conditions under which the workpiece was polished with a polishing tool in another device different from the computer device 1 above, and the load applied to the polishing tool and/or the amount of change in the load when polishing under the conditions, within a predetermined range. information receiving means for receiving information regarding the position of the polishing tool in the contact direction in contact with the work, or the amount of protrusion or the amount of cut in the contact direction of the abrasive material of the polishing tool;
Machine learning is performed by the predictive model using information regarding the received conditions as input data and information regarding the received position of the polishing tool in the contact direction or the protrusion amount or depth of cut in the contact direction of the abrasive material of the polishing tool as output data. 13. The system of claim 12.
Information regarding the conditions under which a workpiece was polished with a polishing tool in another device different from the computer device 1 above, and information on the polishing tool for making the amount of cut into the workpiece by the polishing tool within a predetermined range under the conditions. Information receiving means for receiving information regarding the position in the contact direction of contact with the workpiece or the amount of protrusion or depth of cut in the contact direction of the abrasive material of the polishing tool,
14. The storage means stores information regarding the received position of the polishing tool in the contact direction or the protrusion amount or cutting amount of the abrasive material of the polishing tool in the contact direction in association with the received information regarding the condition. system.
Information regarding the conditions under which a workpiece was polished with a polishing tool in another device different from the computer device 1 above, and information on the polishing tool for making the amount of cut into the workpiece by the polishing tool within a predetermined range under the conditions. Information receiving means for receiving information regarding the position in the contact direction of contact with the workpiece or the amount of protrusion or depth of cut in the contact direction of the abrasive material of the polishing tool,
Machine learning is performed by the predictive model using information regarding the received conditions as input data and information regarding the received position of the polishing tool in the contact direction or the protrusion amount or depth of cut in the contact direction of the abrasive material of the polishing tool as output data. 15. The system of claim 14.
A claim in which the information regarding the conditions is information regarding the type of abrasive material, the type of workpiece, the rotational speed of the polishing tool, the feed rate of the polishing tool, the state of the workpiece before polishing, and/or the state of the workpiece after polishing. 1, 2, 9, 10-14 and 17-20.
A program executed on a computer device,
computer equipment,
a storage means for storing information regarding the wear rate of the abrasive material of the polishing tool under the conditions in association with information regarding the conditions for polishing the workpiece with the polishing tool;
an input means for accepting input of conditions for polishing a work;
A program that functions as a specifying means for specifying information regarding the wear rate of abrasive materials corresponding to the accepted conditions.
A program executed on a computer device,
computer equipment,
an input means for accepting input of conditions for polishing a workpiece with a polishing tool;
The wear rate of the abrasive material under the accepted conditions is calculated by using a machine learning prediction model with input data as input data regarding the conditions for polishing the workpiece and output data as information regarding the wear rate of the abrasive material of the polishing tool under the conditions. A program that functions as a means of determining speed information.
A program executed on a computer device,
computer equipment,
Contact with the work of the polishing tool in order to bring the load applied to the polishing tool and/or the amount of change in the load within a predetermined range when polishing the work under the conditions, in association with information regarding the conditions for polishing the work with the polishing tool. a storage means for storing control information for controlling the position in the contact direction or the protrusion amount or cutting amount in the contact direction of the abrasive material of the polishing tool;
an input means for accepting input of conditions for polishing a work;
A program that functions as a specifying means for specifying control information corresponding to accepted conditions.
A program executed on a computer device,
computer equipment,
In association with information regarding the conditions for polishing a workpiece with a polishing tool, the position of the polishing tool in the contact direction in contact with the workpiece or the polishing tool for making the amount of cut into the workpiece by the polishing tool within a predetermined range under the conditions. storage means for storing control information for controlling the amount of protrusion or the amount of cut in the contact direction of the abrasive material;
an input means for accepting input of conditions for polishing a work;
A program that functions as a specifying means for specifying control information corresponding to accepted conditions.
A program executed on a computer device,
computer equipment,
an input means for accepting input of conditions for polishing a workpiece with a polishing tool;
The contact direction of the polishing tool with the workpiece is input data regarding the conditions for polishing the workpiece, and the contact direction of the polishing tool with the workpiece is used to keep the load applied to the polishing tool and/or the amount of change in load within a predetermined range when polishing under the conditions. Identification of specifying control information under the received conditions using a predictive model that is machine learned with output data as control information for controlling the position of the abrasive tool or the amount of protrusion or depth of cut in the contact direction of the abrasive material of the polishing tool. A program that functions as a means.
A program executed on a computer device,
computer equipment,
an input means for accepting input of conditions for polishing a workpiece with a polishing tool;
Information regarding the conditions for polishing the workpiece is input data, and the position of the polishing tool in the contact direction in contact with the workpiece or the position of the polishing tool in order to make the cutting amount of the polishing tool into the workpiece within a predetermined range under the conditions. A program that functions as a specifying means for specifying control information under accepted conditions using a predictive model learned by machine learning with control information for controlling the amount of protrusion or depth of cut in the contact direction of the abrasive material as output data.