JP2002318970A - Charging device for machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a management device for machine tool capable of properly charging according to a use condition of a machine tool. SOLUTION: The machine tool 30a is temporarily operated, and the use permitting condition (including an index of charge) is calculated by the management device 10 according to the operating state in the temporary operation of the machine tool 30a and transmitted to a terminal device 20a. When a user decides to operate the machine tool 30a in the user permitting condition and selects this decision by the terminal device 20a, a user permission ID is transmitted from the management device 10. When the user inputs the use permission ID or the like in the terminal device 20a, the machine tool 30a is operable. The management device 10 monitors the operating state of the machine tool 30a, performs a charging process when a prescribed time comes, and transmits a charge bill to the terminal device 20a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a charging device for a machine tool.

[0002]

2. Description of the Related Art When a machine tool, for example, a grinding machine, a laser processing machine, or a press machine is used for rental from a manufacturer, a usage fee is set mainly based on the price of the machine tool. For example, the manufacturer sets a usage fee per day. Then, for example, every month, the number of operating days of the machine tool for the user who rents the machine tool is multiplied by the usage fee per day to calculate a charge for one month, and the user is provided with one month. Has issued a minute invoice.

[0003]

However, the actual operating state of the machine tool varies greatly from user to user.
For example, some users drive only a few hours a day, and some users drive all day. Since the life of a machine tool is affected by the operating time per day, the longer the operating time per day, the shorter the life of the machine tool. Also, for example, the spindle speed during operation often differs from user to user. Since the life of a machine tool is affected by the spindle speed of the machine tool, the higher the speed of the machine tool, the shorter the life of the machine tool. Conventionally, a rental fee for a machine tool has been set on a daily basis, so that it has not been possible to appropriately charge the rental fee according to the usage conditions of the user. Therefore, an object of the present invention is to provide a machine tool charging apparatus that can appropriately charge according to usage conditions of a machine tool.

[0004]

In order to solve the above-mentioned object, according to the present invention, there is provided a machine tool, a terminal device, a management device, a storage device, a machine tool, a terminal device, and a management device. A data line enabling transmission and reception of data between the storage device and the storage device. The storage device stores a use permission ID of the machine tool and a use permission condition corresponding to the use permission ID. The use request signal including the permission ID is transmitted to the management device, and when the use permission signal transmitted from the management device is received, the operation of the machine tool is enabled, and the billing information of the machine tool is transmitted to the management device. When the use request signal is received from the terminal device, if the use permission ID included in the use request signal is stored in the storage device, the use permission signal is transmitted to the terminal device, and the billing information transmitted from the terminal device is transmitted. Based on A charging device for a machine tool, which comprises carrying out the billing process. In addition, "data line"
A wired system or a wireless system may be used. According to the charging device for a machine tool according to the first aspect, it is possible to appropriately charge based on the use permission condition of the user. In addition, it is possible to remotely operate the machine tool installed by the user based on the use permission condition.

[0005] Further, the invention according to claim 2 is based on claim 1.
Wherein the terminal device transmits operating state information of the machine tool to the management device, disables the operation of the machine tool upon receiving a use prohibition signal from the management device, the management device, A machine that determines the use condition based on the operating state information of the machine tool transmitted from the terminal device and sends a use prohibition signal to the terminal device when the use condition does not satisfy the use permission condition. It is a machine billing device. According to the billing device for a machine tool according to the second aspect, when the machine tool is operated under a use condition different from a predetermined use permission condition, the operation of the machine tool is stopped and the machine tool is determined in advance. It can be driven in accordance with the specified license conditions.

[0006] Further, the invention according to claim 3 is based on claim 1.
Or the charging device for a machine tool according to 2, wherein the terminal device transmits operating state information at the time of temporary operation of the machine tool to the management device, and the management device transmits the temporary operation of the machine tool transmitted from the terminal device. The use permission condition is determined based on operating state information at the time, and the determined use permission condition is stored in a storage device. According to the billing device for a machine tool according to the third aspect, the use permission condition is calculated according to the operating state at the time of the provisional operation, so that the billing can be performed according to the actual operating state.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view of an embodiment of a charging device for a machine tool according to the present invention. Machine tool 30
a, the management device 10
Is provided. The machine tool 30a is installed in a factory A as a user. The machine tool 30b is installed in a factory B as a user. The factories A and B and the maker communicate bidirectionally with a communication line 40 (for example,
Internet or telephone line). The user may be other than the factories A and B. Further, a plurality of machine tools may be provided in the same user. In this case, each machine tool may be managed separately or may be managed collectively.

[0008] As shown in FIG. 2, a management device 10 provided on the maker side is provided with a processing device 11. The processing device 11 includes, for example, machine tools 30a, 30
A set fee database 12 in which set fee data for renting b is stored is readable and writable. The processing device 11 includes, for example, an identification number of a user (factory A, factory B), a use permission ID for enabling the machine tools 30a and 30b to operate (permit use),
A customer management database 13 in which operating state histories of the machine tools 30a and 30b are stored is readable and writable. Further, a communication I / F 14 is connected to the processing device 11, and data can be transmitted and received to and from the terminal devices 20 a and 20 b via the communication line 40.
The terminal device 20a is provided with a processing device 22a. The processing device 22a is connected to, for example, a keyboard 25a for inputting processing conditions and the like, and a display 24a for displaying a screen for monitoring an operating state (for example, the rotation speed of a spindle) and for inputting processing conditions and the like. . Further, the processing device 22
Operation permission means 21a for turning on or off the machine tool 30a is connected to a. Also, the processing device 22a
Is connected to an operating state information collecting means 26a for monitoring the operating state of the machine tool (for example, the number of revolutions of the main spindle) and, for example, cumulatively adding and collecting information for a predetermined period. A communication I / F 23a is connected to the processing device 22a.
0 and various data can be transmitted and received. The terminal device 20a is, for example, provided with a communication unit in the NC of the machine tool 30a. These configurations are the same for the terminal device 20b. Note that the communication line 40 may be a wired system or a wireless system.

Next, the processing of the management apparatus 10 will be described with reference to FIG.
And the display examples shown in FIGS. 4 to 14 will be described. In the present embodiment, a case where a grinding machine A is used as the machine tool 30a will be described. As described above, the terminal device 20a installed in the user (for example, the factory A) who rents the grinder A from the manufacturer and uses it,
A display 24a and a keyboard 25a are provided. When a start key (not shown) for using the grinder A is operated, first, as shown in FIG. 4, a screen for selecting "temporary operation" or "operation" is displayed on the display 24a. First, the user operator selects and inputs "temporary operation" using the keyboard 25a. The display example in FIG. 4 indicates that the selected one has a higher luminance and is displayed. There may be no start key, and the terminal device 20a may be automatically started when the power is turned on. The display 24a may be a touch sensor panel and may be selected by touching.

When the temporary operation mode is selected, the display 24
In a, a temporary operating condition input screen as shown in FIG. 5 is displayed. The user inputs the tentative operating condition and the tentative ID on the tentative operating condition input screen using the input means 25a and the like. The tentative operating conditions include, for example, 1 based on machining conditions instructed by the NC program stored in the NC of the machine tool 30a.
The daily operation time, the number of revolutions of the spindle, the feed speed of the tool, the feed speed of the table, and the like are input. The temporary ID may be determined in advance for each machine tool. Further, the provisional operating conditions may be inserted from an NC program stored in the NC of the machine tool. When the user inputs the provisional operation condition and the provisional ID on the provisional operation condition input screen, the user performs the provisional operation start operation. For example, a temporary operation key of the input means is operated, or a “temporary operation” portion displayed on the temporary operation condition input screen is designated by a cursor. Thereby, the temporary operation of the machine tool is performed. At this time, a temporary operation display screen indicating that the machine tool is temporarily operating is displayed on the display 24a as shown in FIG. The terminal device 20a monitors the operation state during the temporary operation. For example, using an encoder (not shown) provided in the spindle motor of the grinding machine A,
{Spindle speed during temporary operation during temporary operation} is detected and transmitted to management device 10 as operating state information during temporary operation (FIG. 3).
(1)). In addition, as operating state information at the time of temporary operation,
Not only the various detection signals of the grinding machine A but also the temporary operation conditions input on the temporary operation condition input screen are included.

The management device 10 receives operating state information at the time of provisional operation from the terminal device 20a, determines the use condition of the grinding machine A, and determines whether the determined use condition is usable in the grinder A. Judge. For example, if the rotation speed of the spindle motor during the temporary operation exceeds the specification of the grinding machine A, the terminal device 2
The unusable information is transmitted to 0a ((2) in FIG. 3). On the other hand, when it is determined that the license is usable, the usage condition is stored as the usage permission condition, and the index of the usage fee corresponding to the usage permission condition is stored in the setting fee database 1.
Calculated based on the set fee data stored in 2. Then, the calculated usage fee index is stored in the terminal device 20a.
((3) in FIG. 3). For example, in the case where {use fee per spindle rotation} is stored in the set fee database 12, the management device 10 receives from the terminal device 20a {the number of rotations of the spindle for one minute during temporary operation (during temporary operation). For example, the operating condition information of the grinding machine A is calculated using the following equation. ｝ Indicator of daily charge of grinding machine A｝ = ｛Number of rotations of spindle for one minute during tentative operation (operating state information during tentative operation)｝ × 60 (minutes) × ｛Operating time per day (machining Condition)｝ × ｛Usage fee per revolution of main shaft of grinding machine A (set fee data)｝ Here, 使用 Usage fee per revolution of main shaft of grinding machine A｝
Is, for example, “Value of grinding machine A” (initial cost,
It is determined in advance based on, for example, running costs), “customer-specific values” (such as a discount rate for each user), and “life of grinding machine A”.

When the terminal device 20a receives the usage fee index transmitted from the management device 10, the terminal device 20a displays
A usage fee index display screen as shown in FIG. 7 is displayed. The usage fee index display screen displays, for example, the usage permission conditions of the grinding machine A and the usage fee index ({index of the daily usage fee of the grinding machine A}) corresponding to the usage permission conditions. Next, on the display 24a, a selection screen for selecting whether to use the grinding machine A based on the use permission condition and the use fee index as shown in FIG. 8 is displayed. On this selection screen, the user determines whether to use the grinding machine A based on the usage fee index displayed on the usage fee index display screen of the display 24a. For example, in the tentative operation performed, the processing accuracy is high and the work quality of the workpiece is good, but since the index of the usage fee is higher than the user's scheduled fee, there is a case where it is desired to perform processing at about the scheduled fee even if the machining accuracy is slightly reduced. is there. In such a case, “re-temporary operation” is selected in order to know the index of the usage fee under different usage conditions. When re-temporary operation is selected,
The temporary operation condition input screen shown in FIG. 5 is displayed again on the display 24a. The user can change the provisional operation conditions and repeat the provisional operation until an acceptable usage fee index is presented. On the other hand, when the index of the usage fee that can be satisfied by the user is presented, “O” is displayed on the selection screen shown in FIG.
Select "K". As a result, the terminal device 20a transmits a license application signal to the management device 10 ((4) in FIG. 3). Note that the usage fee index display screen shown in FIG. 7 and the selection screen shown in FIG. 8 can be displayed on one display screen. For example, the usage fee index shown in FIG. 7 is displayed at the top of the display screen, and the “OK” section and the “temporary operation” section are displayed at the bottom.

When receiving the license application information, the management device 10 determines a usage permission ID. Then, the determined use permission ID and the use permission condition of the machine tool corresponding to the use permission ID are stored in the customer management database. Also, the use permission ID information including the use permission ID is transmitted to the terminal device 20.
a (FIG. 3 (5)). When receiving the use permission ID information, the terminal device 20a displays the use permission ID on the display 24a as shown in FIG. 9 on the display 24a.
For example, a use permission ID “abc1def2” is displayed. The use permission ID is an ID required when the user operates the grinder A based on the use permission condition. The terminal device 20a stores use permission ID information (use permission ID and use permission conditions). In addition, the user sets the use permission I
You may write down the D information.

Next, a procedure for actually using the grinding machine A will be described. When using the grinding machine A, the user performs a starting operation. For example, when a start key (not shown) is operated, an operation selection screen is displayed in FIG. The operator selects “operation mode”. When the operation mode is selected, the terminal device 20a displays a use permission ID input screen as shown in FIG. 11 on the display 24a. The user
On the use permission ID input screen, the use permission ID determined in the above-described temporary operation mode (in this case, “abc1def
2)). The terminal device 20a transmits a use permission request signal including the input use permission ID to the management device 10 ((6) in FIG. 3).

Upon receiving the use permission request signal, the management device 10 receives the use permission ID contained in the use permission request signal.
With the customer data stored in the customer management database 13. Meanwhile, a message indicating that the use permission ID is being collated is displayed on the display 24a as shown in FIG. When the use permission ID included in the use permission request signal is stored in the customer management database, the use permission signal is transmitted to the terminal device 20a ((8) in FIG. 3). On the other hand, when the use permission ID included in the use permission request signal is not stored in the customer management database 13, the use permission signal is transmitted to the terminal device 20a ((7) in FIG. 3). Upon receiving the use permission signal, the terminal device 20a enables the operation of the grinding machine A and displays a use permission display screen as shown in FIG. 13 on the display 24a. The use permission display screen includes, for example, A message indicating that the use permission ID has been authenticated, a start unit for starting use, and a cancel unit for canceling use are displayed. On the other hand, if an unusable signal is received,
The terminal device 20a displays, on the display 24a, for example, a screen including a message urging the user to input the use permission ID again (not shown).

When the user uses the grinding machine A,
“Start” is selected, the temporary operation conditions determined during the temporary operation are set as the processing conditions, and the grinding machine A is operated. In addition,
In order to save the trouble of inputting the processing conditions at the start of the operation, the temporary operation conditions input at the time of the temporary operation may be stored in the storage means, and may be read from the storage means at the start of the operation. When the operation of the grinding machine A is started, the terminal device 20a operates the grinding machine A at an appropriate time (for example, every predetermined time or a predetermined time) (for example, the elapsed time from the start of operation, the spindle rotation speed). Alternatively, an integrated value of the spindle rotation speed, a feed speed of the tool, and a feed speed of the table are detected and transmitted to the management device 10 as operating state information of the grinding machine A ((9) in FIG. 3). While the grinding machine A is operating, the terminal device 20a displays, on the display 24a, an operation state display screen indicating the operation state of the day, as shown in FIG. For example, “Today, driving for ** hours from the start”, and “Today's main spindle rotation speed is **** rotation” are displayed. On the operation state display screen, all the operation state information transmitted by the terminal device 20a (for example, the elapsed time from the start of operation, the spindle speed or the integrated value of the spindle speed, the feed speed of the tool, and the feed speed of the table) are displayed. Alternatively, a part (for example, the elapsed time from the start of operation, the spindle speed, or the integrated value of the spindle speed) may be displayed.

When receiving the operating condition information from the terminal device 20a, the management device 10 determines the use condition based on the operating condition information. Then, the determined use condition and the use permission ID stored in the customer management database 13.
When the use condition does not satisfy the use permission condition, a use prohibition signal is transmitted to the terminal device 20a.

Upon receiving the use prohibition signal from the management device 10, the terminal device 20a disables the operation of the grinding machine A.
In addition, the terminal device 20a displays a warning screen on the display 24a as shown in FIG. For example, a message “The registered use permission condition is not met. Operation of grinding machine A has been stopped.” Is displayed. As described above, the management device 10 monitors the operation state during the operation of the grinder A, and when the grinder A is operated under the use condition that does not match the use permission condition registered in advance, the grinder A Stop the operation of A. In addition, instead of stopping immediately,
In advance, it warns that "The registered license conditions do not meet the license conditions. Please return to the original license conditions." You may make it stop.

On the other hand, while the grinding machine A is operating, the terminal device 20a updates and stores the billing usage information (for example, the number of operating days of the grinding machine A). Then, at a predetermined time (for example, every predetermined period, or at a predetermined time, etc.), the charging use information of the grinding machine A at that time is transmitted to the management device 10 ((11) in FIG. 3). Note that the billing use information and the use permission ID may be transmitted to the management device 10.

When the management device 10 receives the charge use information of the grinding machine A transmitted from the terminal device 20a, it stores the charge use information in the customer database corresponding to the use permission ID of the grinder A. The usage fee is calculated, for example, every month based on the charging usage information in the customer database and the setting fee in the setting fee database. The usage fee is obtained, for example, by the following formula. {Use fee for one month of grinder A} = {Days operated in one month (billing usage information)} × {Index of daily use fee of grinder A} The management device 10 calculates the usage fee. The accounting process is performed based on For example, a bill for use of the grinding machine A, including a statement of use and a bill, is transmitted to the terminal device 20a ((12) in FIG. 3).

The configuration and operation of the present invention are not limited to the present embodiment. The terminal device 20a may also be used as a control device of the machine tool 30a,
A different device from the control device described above may be provided. When the same user uses a plurality of machine tools, for example, the machine tools 30a and 30b, a use permission ID may be provided for each of the machine tools 30a and 30b, or one use permission ID may be assigned to the same user. It may be provided and managed for each user. Machine tools are not limited to grinding machines. In the present embodiment, the rotation speed of the main spindle is used as a parameter when calculating the index of the usage fee. However, the calculation is performed by adding the parameters such as the feed speed of the tool and the rotation speed of the motor for feeding the table. Is also good. In this case, the terminal device 20a detects and transmits these parameters in the tentative operation state information transmitted to the management device 10 by the terminal device 20a during the tentative operation to calculate the index of the usage fee. At this time, for example, the index of the usage fee of the grinding machine A is calculated by the following equation. ｝ Indicator of daily charge of grinder A｝ = ｛number of rotations of spindle for one minute during temporary operation｝ × 60 (minutes) × ｛operation time per day｝ × ｛per revolution of spindle of grinder A Usage fee｝ + す る Daily usage fee due to tool feed speed during temporary operation｝ + ｛Number of rotations of motor to send table for one minute during temporary operation｝ × 60 (minutes) × ｛day Operating time｝ × {Charge per rotation of motor for sending table of grinder A}｝ Here, {Charge for rotation of motor for sending table of grinder A} is, for example, "value of grinder A". (Including initial cost and running cost), “customer specific value” (discount for a specific customer, etc.), “life of grinding machine A”, and the like. The method of calculating the usage fee index is not limited to the present embodiment.

[0022]

As described above, by using the charging device for a machine tool according to the first aspect, it is possible to appropriately charge based on the use permission condition of the user. In addition, it is possible to remotely operate the machine tool installed by the user based on the use permission condition. Further, when the machine tool charging device according to claim 2 is used, when the machine tool is operated under use conditions different from the predetermined use permission condition, the operation of the machine tool is stopped, and the machine tool is stopped. The vehicle can be operated under predetermined use permission conditions. In addition, if the machine tool according to claim 3 is used, the use permission condition is calculated according to the operation state at the time of provisional operation.
Charges can be made according to the actual driving conditions.

[Brief description of the drawings]

FIG. 1 is a schematic view of an embodiment of a billing device for a machine tool according to the present invention.

FIG. 2 is a diagram illustrating a configuration of a billing device for a machine tool according to the present invention.

FIG. 3 is a diagram showing the operation of the billing device for a machine tool according to the present invention.

FIG. 4 is a display example of a display 24a.

FIG. 5 is a display example of a display 24a.

FIG. 6 is a display example of a display 24a.

FIG. 7 is a display example of a display 24a.

FIG. 8 is a display example of a display 24a.

FIG. 9 is a display example of a display 24a.

FIG. 10 is a display example of a display 24a.

FIG. 11 is a display example of a display 24a.

FIG. 12 is a display example of a display 24a.

FIG. 13 is a display example of a display 24a.

FIG. 14 is a display example of a display 24a.

FIG. 15 is a display example of a display 24a.

[Explanation of symbols]

 Reference Signs List 10 management device 11 processing device 12 setting fee database 13 customer management database 14 communication I / F 20a, 20b terminal device 22a processing device 23a communication I / F 24a display 25a keyboard 30a, 30b machine tool

Claims (3)

[Claims] 1. A machine tool, a terminal device, a management device,
A storage device, and a data line enabling transmission and reception of data between the machine tool, the terminal device, the management device, and the storage device, wherein the storage device includes: a use permission ID of the machine tool;
Storing a use permission condition corresponding to D, the terminal device transmits a use request signal including a use permission ID to the management device, and upon receiving the use permission signal transmitted from the management device, enables the operation of the machine tool; The charging use information of the machine tool is transmitted to the management device. When the management device receives the use request signal from the terminal device, if the use permission ID included in the use request signal is stored in the storage device, the use permission is made. A billing device for a machine tool, comprising: transmitting a signal to the terminal device; and performing billing processing based on the billing use information transmitted from the terminal device. 2. The charging device for a machine tool according to claim 1, wherein the terminal device transmits operating state information of the machine tool to the management device, and receives a use prohibition signal from the management device. The management device determines the use condition based on the operating state information of the machine tool transmitted from the terminal device, and sends a use prohibition signal to the terminal device when the use condition does not satisfy the use permission condition. A billing device for a machine tool, which transmits. 3. The charging device for a machine tool according to claim 1, wherein the terminal device transmits operating state information of the machine tool at the time of provisional operation to the management device, and the management device transmits the operating state information from the terminal device. A billing device for a machine tool, comprising: determining a use permission condition based on the transmitted operating state information of the machine tool during temporary operation; and storing the determined use permission condition in a storage device.