JPH06110529A - Operation information managing device for numerical controller - Google Patents

Abstract

PURPOSE:To provide the operation information managing device which can suppress the burden of an operator at a minimum for a numerical control machine tool and can sum-up/display operation information desirable for the operator in the work area of the operator as needed. CONSTITUTION:The ON/OFF of a state concerning an, energized state and the time of turning on/off the state are detected by an energized state detection part 7, the ON/OFF of a state concerning an operating state and the time of turning on/off the state are detected by an operating state detection part 5, and an input button provided at a keyboard 1 is deperessed. Then, the ON/OFF of a state concerning a non-operating state provided by non-operation reasons and the time of turning on/off the state are detected, the respective detected results are summed up, and the ON/OFF of various states, the time of turning on the various states, the rate and the graph are prepared and displayed at real time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation information management device in a numerical control device, and more particularly to a non-operational condition provided for each of the energized condition, the operational condition and the non-operational reason according to the status signal of the input means and the numerical control device. The present invention relates to an operation information management device that aggregates and displays information.

[0002]

2. Description of the Related Art Today, in a factory, it is important to accurately and in real time grasp and accurately analyze the production status and operation status of each production facility in order to respond to changes in production targets, setups and the like. Is coming. Therefore, even in machine tools, it is required to accurately and in real time grasp the processing status and operation status. for that reason,
Install an external device that manages operating information near the numerical control device that controls the machine tool, and connect the external device and the numerical control device with a communication cable to collect and manage operating information from the external device. A device that does is proposed and put into practical use. The external device receives the status signal of the numerical control device from the target numerical control device through the communication cable,
Machine tool operating status (whether the operating status is on,
It's turned off). In addition, the reason for the non-operation in the external device (hereinafter,
An input button for selecting and inputting the reason for non-operation) is provided, and the reason for non-operation is detected by pressing this input button.

[0003]

However, the device for managing the operation information by connecting the external device to the numerical control device as described above has the following problems. First, it is necessary to install an external device for each numerical control device, connect the numerical control device and the external device with a communication cable, and notify many signals of the numerical control device to the external device. Therefore, it costs a huge amount to build the system,
There is a drawback in that it is necessary to secure a place for installing an external device at the work site. Also, in order to see the operation information collected by the external device, the operator of the numerical control device that controls the machine tool must move to the installation location of the external device or another display device connected to the external device. . Therefore, it is difficult to see the operation information while operating the numerical control device, and the workability of the operator of the numerical control device is extremely poor.

Further, in the method of collecting and managing the operation information by the external device as described above, the energized / de-energized state of the numerical control device, the operating / non-operating state, and the non-operation requesting the operator of the numerical control device to perform an input operation. Accurately grasping the non-operation status for each reason imposes a heavy burden on the operator, and in some cases, accurate energization / de-energization status, operation / non-operation status, non-operation status for each non-operation reason There was a drawback that it could not be collected accurately. The present invention has been made under the circumstances as described above, and an object of the present invention is to provide, in a numerically controlled machine tool for controlling a machine tool, operation information desired by the operator while minimizing the burden on the operator. It is to provide an operation information management device capable of totaling and displaying in real time when an operator wants in a work area.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an operation information management device in a numerical control device having a display device and an input means, and the above object of the present invention is to provide a timer means and at least a state related to an energized state. ON / OFF, an energization state detection means for detecting the time when the state is turned on and off,
The non-operation by operating the operation status detection means for detecting at least on / off of the operation status and the time when the status is turned on / off by the status signal of the numerical control device and the input means to which the reason for the non-operation is assigned. On / off of at least the state related to the non-working state provided for each reason, a non-working state detection means for detecting the time when the state is turned on and off, and the detection result of each of the detection means is aggregated and displayed on the display device. And means.

[0006]

In the present invention, at least the on / off state of the energized state and the operating state and the time when the state is turned on / off are automatically detected, so that the data input regarding the energized state and the operating state is unnecessary. In addition, since at least the state on / off and the time when the state is on / off regarding the non-operation state provided for each non-operation reason are detected only by pressing the function key, a new operation procedure is not used, and while performing the machining work. You can enter data about non-working conditions. In addition, the time and percentage of the power-on state, the time and percentage of the operating state, and the time and percentage of the non-operating state set according to the reason for non-operation are aggregated in real time. Then
Since it is displayed, the actual data of operating / non-operating can be immediately reflected. If the function key is not pressed within the specified time after the operating state is turned off,
Since the startup is forcibly prohibited, it is possible to reliably execute the input of the reason for non-operation. Furthermore, since the present invention is implemented in a numerical controller for controlling a machine tool,
Since the operator of the numerical control device that controls the machine tool can see the operation information while operating the numerical control device normally, the workability of the operator of the numerical control device can be significantly improved.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the operation information management device of the present invention. The timer 9 in FIG. 1 sends out information on both an absolute value (current time) regarding time and a relative value (elapsed time). Further, the keyboard 1 is provided with an input button to which a reason for non-operation is assigned, and one input button corresponds to one non-operation reason. As a means of assigning the reason for non-operation to the input button, prepare the input buttons for the number of non-operation reasons,
There are a method of printing the reason of non-operation on the upper part of the input buttons or the input button itself, and a method of displaying the non-operation reason menu on the display device corresponding to the arrangement of the function keys by using the function keys as the input buttons.

The energization state detection unit 7 sets energization state data according to the current time sent from the timer 9, and stores the energization state data in the energization state storage unit 8. The operating state detection unit 5 sets operating state data based on the current time sent from the timer 9 and the state signal of the numerical control device sent from the machine control unit 4, and stores the operating state data in the operating state storage unit 6. Remember. In addition, the non-working state detection unit 2
Sets the non-working state data based on the current time sent from the timer 9, the key signal sent from the keyboard 1, and the working state data stored in the working state storage unit 6, and stores the non-working state data. It is recorded in the non-operating state storage unit 3. The operation information display unit 10 includes the energization state data stored in the energization state storage unit 8, the operation state data stored in the operation state storage unit 6, and the non-operation state data stored in the non-operation state storage unit 3. And are totaled, and the result is displayed on the display device 11. Furthermore, the activation control unit 12 uses the timer 9
Start-up control data is created from the current time sent from the computer 1, the key signal sent from the keyboard 1, and the operating state data stored in the operating state storage unit 6, and the machine control unit 4
Send to. The machine control unit 4 controls a drive unit such as a feed shaft or a spindle according to a machining program (not shown). If the activation control data means activation permission, the control is executed by pressing the activation button,
When the activation control data indicates that activation is prohibited, the control is not executed even if the activation button is pressed.

FIG. 6 shows a screen example and function keys in the present invention. Hereinafter, the keyboard 1 will be described in detail with reference to FIG. The keyboard 1 is equipped with function keys 100.
Sends a key code corresponding to the pressed function key. On the screen 101, the function key 10
The non-operation reason menu 102 is displayed corresponding to the arrangement of 0, and the following (1) to
Reasons for non-operation such as (7) are assigned. (1) Function key F1: When operation cannot be performed due to setup work such as work attachment or tool exchange (2) Function key F2: When operation cannot be performed because the work to be processed does not arrive (3) Function key F3: For meeting / meeting If you cannot work because of attendance (4) Function key F4: If you cannot work because of a break (5) Function key F5: If you cannot work to process defective products and take countermeasures (6) Function key F6: When operation cannot be performed due to maintenance / inspection of machine tools and peripheral devices (7) Function key F7: When operation cannot be performed for a reason that does not apply to any of the above reasons. However, the function key F8 has an extended function and It is also possible to update the non-operation reason menu by pressing the function key F8 of, and to provide more than seven kinds of non-operation reasons.

FIG. 7 shows an example of the structure of various status data. The energization status data 120 is "ON / ON of energization status".
"OFF" 120A, "time when energized state is turned on" 120
B, "time when energized state is turned off" 120C, "time required for energized state" 120D, "cumulative time required for energized state" 1
It is composed of 20E.

FIG. 2 is a flow chart showing the processing procedure of the energization state detecting section 7 in FIG. 1. Next, the processing procedure of the energization state detecting section 7 will be described in detail with reference to FIGS. 2 and 7. When the energized state detection unit 7 starts the process, first, the "time when the energized state is turned on" 120B is set as the current time (step S20). Next, the "time when the energized state is turned off" 120C is set as the current time, and the "time when the energized state is turned on" 120B is subtracted from the "time when the energized state is turned off" 120C, thereby obtaining the "time required for the energized state". 120D is calculated (steps S21 and S2).
2). After that, by repeating steps S21 and S22, it is possible to set the "time when the energized state is turned off", that is, the time when the power is turned off. FIG. 7 shows an example of the structure of various status data.
1 is "operating state on / off" 121A, "operating state is turned on" 121B, "operating state is turned off" 121C, "operating state required time" 121D, "operating state accumulated required time" It is composed of 121E.
The "operating state on / off" 121A is "1" if the operating state is on, and "0" if the operating state is off.

On the other hand, FIG. 3 is a flow chart showing the processing procedure of the operating state detecting section 5 in FIG. 1, and the processing procedure of the operating state detecting section 5 will be described in detail below with reference to FIGS. 3 and 7. To do. When the processing is started, the operating state detection unit 5 first checks whether or not the operating state is on by "operating state on / off" 121A (step S40). When the operating status is off (not in operation)
Checks whether or not the start button has been pressed according to the status signal, and if the start button has not been pressed, returns directly to step S40 (step S41). Then, when the start button is pressed during non-operation, the operating state is first turned on (step S42). That is, the "operating state on / off" 121A is set to "1", and the "time when the operating state is turned on" 121B is set to the current time (step S43). Then, "the time when the operating state is turned off" 121
C is the current time, and "time when the operating state is turned off" 121C to "time when the operating state is turned on" 121B
By subtracting "time required for operating state" 121D
Is calculated, and then the process returns to step S40 (step S40).
44). On the other hand, if the operating status is ON (in operation)
Checks whether or not the code "M02" is executed by the status signal. If the code "M02" is not executed, the step S44 is executed, and then the process returns to the step S40 (step S45). If the code "M02" is executed during operation, the operation state is turned off first (step S46). That is, the "ON / OFF of operating state" 121A is set to "0". Then, while the "time when the operating state is turned off" 121C is set to the current time,
The "time required for operating state" 121D is calculated by subtracting "time when operating state is turned on" 121B from "time when operating state is turned off" 121C (step S4).
7). Further, the "operating state required time" 121D is added to the "operating state accumulated required time" 121E, and step S4 is performed.
The process returns to 0 (step S48). FIG. 7 shows an example of the structure of various status data. The non-operation status data 122 provided for each non-operation reason includes “non-operation status on / off” 122A and “non-operation status "Time when turned on" 122B, "Time when non-operating state turned off" 122
C, "required time in non-operating state" 122D, and "cumulative required time in non-operating state" 122E. The "non-working state on / off" 122A is "1" if the corresponding non-working state is on, and "0" if the corresponding non-working state is off.

Further, FIG. 4 is a flow chart showing a processing procedure of the non-working state detecting section 2 in FIG. 1, and the processing procedure of the non-working state detecting section 2 will be described in detail with reference to FIGS. 4 and 7 below. Explained. For convenience of explanation, each data (122A, 122B,
122C, 122D, 122E) is defined as an array for each non-operation reason with "i" as an argument. “I” is a variable for storing the reason for non-operation. Non-operating state detector 2
When the process is started, first checks whether or not the non-operation flag is "1" (step S60). The non-operation flag is a variable for storing the fact that the non-operation flag is in operation. When the non-operation flag is "1" (non-operation)
Checks whether or not the function key is pressed with the key code. If the function key is not pressed, only step S65 described below is executed and the process proceeds to step S66 (step S61). Then, if the function key is pressed during non-operation, the non-operation state is turned off with respect to the non-operation state for the valid non-operation reason i (step S62). That is, the "non-operation state ON / OFF" 122A is set to "0". Next, regarding the non-working state for the non-working reason i that was valid, "the time when the non-working state was turned off" 1
22C is set to the current time, and "non-operating state required time" 122D is set to "non-operating state accumulated required time" 122E.
To (step S62). Subsequently, the "time required for non-working state" 122D is cleared for the non-working state for the valid non-working reason i (step S6).
2). Further, the variable i is updated according to the pressed function key, and the newly activated non-operation reason i is stored (step S63). (1) When the function key F1 (during setup) is pressed: i = 0 (2) When the function key F2 (standby) is pressed: i = 1 (3) Function key F3 (under discussion) When pressed: i = 2 (4) When function key F4 (during break) is pressed: i = 3 (5) When function key F5 (during failure handling) is pressed: i = 4 (6) When the function key F6 (under maintenance) is pressed: i = 5 (7) When the function key F7 (other) is pressed: i = 6

Next, the non-working state for the newly valid non-working reason i is turned on (step S64). In other words, "non-working state on / off"
Set 122A to "1". Subsequently, the “time when the non-working state is turned on” 122B regarding the non-working state for the newly valid non-working reason i is set to the current time (step S64). Next, regarding the non-working state for the non-working reason i, "the time when the non-working state is turned on" from the current time 1
By subtracting 22B, the "time required for non-operation state" 122D is calculated (step S65). In addition, "operating state on / off" in the operating state data 121
By 121A, it is checked whether the operating state is turned on, and if the operating state is not turned on, the step S6 is performed as it is.
The process returns to 0 (step S66). When the working state is turned on, first, the non-working state is turned off with respect to the non-working state for the valid non-working reason i (step S6).
7). In other words, "non-working state on / off" 122A
Is set to "0". Subsequently, regarding the non-working state for the valid non-working state i, the "time when the non-working state is turned off" 122C is set to the current time, and the "time required for the non-working state" 122D is set to "non-working state". Accumulated cumulative time ”122E (step S67). Furthermore,
Regarding the non-working state for the valid non-working reason i, the "time required for the non-working state" 122D is cleared (step S67). Then, the non-operation data is set to "0" and the operation status is turned on (being in operation).
Is stored, and then the process returns to step S60 (step S60).
68).

On the other hand, if the non-working flag is "0" in the above step S60 (working), the working status data 12
According to the "operating state on / off" 121A in 1,
It is checked whether the operating state is turned off. If the operating state is not turned off, the process directly returns to step S60 (step S69). Then, when the operating state is turned off, first, the non-operating state is turned on for the non-operating state for the valid non-operating reason i (step S70). That is, the "non-operation state on / off" 122A is set to "1". Next, regarding the non-working state for the valid non-working state i, the “time when the non-working state is turned on” 122
B is set to the current time (step S70). Further, the non-working data is set to "1", and the fact that the working state is turned off (being non-working) is stored (step S71).

FIG. 6 shows an example of the screen of the present invention, and the operation information display section 10 in FIG. 1 will be described in detail below with reference to FIGS. 6 and 7. An area 103 in FIG. 6 is an area for displaying a character string indicating the operating state, and in this embodiment, the character string indicating the operating state is defined as “operating”. In the operation information display unit 10, “ON / OFF of operation state” 121A in the operation state data 121 is “
When it is "1", the character string indicating the operating state is highlighted. Conversely, when "ON / OFF of the operating state" 121A in the operating state data 121 is "0", the character indicating the operating state is displayed. Display columns normally. The example of FIG. 6 is an example in which the character string “operating” indicating the operating state is highlighted, and indicates that the machine is operating. As a result, the operator can immediately determine whether or not the machine is in operation by looking at the screen. Further, the area 104 is an area for displaying a character string indicating the non-operational state, and in the present embodiment, the character string indicating the non-operational state is defined as follows.・ Non-operational status due to setup: "non-operational (in preparation)"-Non-operational status due to standby: "Non-operational (standby)"-Non-operational status due to discussion: "Non-operational" Working (under discussion) "-Non-working status because of break:" Non-working (during break) "-Non-working status because of fault response:" Non-working (during failure handling) "-Due to maintenance Non-working state: "Non-working (under maintenance)"-Non-working state due to other reasons: "Non-working (other)" Further, the working information display unit 10 displays "working state on / off" in the working state data 121. When 121A is “0”, the non-working state in which the “non-working state on / off” 122A in the non-working state data 122 is “1” is extracted, and the character string indicating the non-working state is inverted. indicate.
On the contrary, when the "operating state ON / OFF" 121A in the operating state data 121 is "1", the character string "non-operating ()" is normally displayed. The example of FIG. 6 is an example in which the character string "non-operation ()" is normally displayed, and indicates that the machine is in operation. This allows the operator to immediately determine by viewing the screen why the machine is out of service. Further, the area 106 includes “time when the energized state is on”, “time when the operating state is on”, “time when the operating state is off”, and “non-operating state provided for each non-operating reason”. This is the area that displays "the time when is on". First, the operation information display unit 10 displays a title 1 that briefly describes each state.
05 is displayed. Next, the "time required for the energized state" 120D in the energized state data 120 is displayed next to the title "energized time" as "time when the energized state is on". Then, the "operating state required time" 121D and the "operating state accumulated required time" in the operating state data 121
The value obtained by adding 121E is displayed next to the title "operating time" as "time when operating state is on". Subsequently, the value obtained by subtracting the calculated "time when the operating state is on" from the calculated "time when the energized state is on" is designated as "time when the operating state is off", "non-operating". Display next to "Working time". Then, the “time required for the non-operational state” 122 in the non-operational state data 122
The value obtained by adding D and "cumulative required time of non-operation state" 122E is designated as "time when non-operation state is set for each non-operation reason", and titles are "setup time" and "standby time", respectively. Displayed next to "," Consultation time "," Break time "," Defect handling time "," Maintenance time "," Other time ".

Area 107 in FIG. 6 is the time ratio of the calculated "time when the operating state is on" to the calculated "time when the energized state is on",
This is an area for displaying the calculated time ratio of "the operating state is off" and the calculated time ratio of the "non-operating state provided for each non-operating reason". In addition, of the above-mentioned time ratios, the time ratio of "the operating time is on" is generally called the operating ratio. By displaying the time ratio as described above, it is possible to immediately recognize the operation ratio, the time ratio for each non-operation reason, and the like. In the present embodiment, the "time when the energized state is on", that is, the time ratio to the time when the power is on, may be considered to be the time ratio to the predetermined time. The predetermined time can be defined in advance as one day (24 hours), am / pm (12 hours), and working hours. In this case, it is possible to immediately recognize how much power is turned on within the predetermined time by displaying the time ratio of the “time when the energized state is on” with respect to the predetermined time.

Further, the area 108 in FIG. 6 is a time ratio of the calculated "time when the operating state is on" and the calculated "time when the operating state is off" with respect to a predetermined time (24 hours). Is a region for displaying a band graph in which a portion 109 represents a ratio of “time when the operating state is on” to a predetermined time, and a portion 110 represents “time when the operating state is off” to a predetermined time. Means the respective proportions. As a method of graphing the above-mentioned time ratio, a graphic display method, a character display method using inversion of white space characters, or a character display method using a special font can be considered. Further, as a method of expressing the data type of the time ratio, a method of changing the color or the brightness for each data can be considered.
The data types of the present embodiment are two: “time when the operating state is on” and “time when the operating state is off”. It is also possible to graph the time ratio of the "time when the non-operation state is turned on". By thus graphing various time ratios, it becomes possible to recognize various time ratios at a glance. Furthermore, since the display area can be reduced by graphing as a single band graph as in the present embodiment, this band graph can be displayed on all screens, and in all screens, that is, in all operations. It becomes possible to recognize various time ratios

By the way, in the above embodiment,
The operator needs to press the function key and input the reason for non-operation. For an unfamiliar operator, the operator may forget to press the function key because he or she concentrates on the machining work. For example, n
The second work piece is processed, and the work piece is removed and attached (n +
1) Consider the case of machining the workpiece. Since the non-operational state due to the attachment / detachment of the work is the non-operational state due to the setup, the non-operational reason may be set up during normal continuous machining. However, if a break is taken on the way, unless the reason for non-operation is changed from the setup to the break, the numerical control device has a long setup time. Under such circumstances, it is difficult to collect accurate data on the reason for non-operation. The activation control unit 12 is a means for solving such a problem.

FIG. 5 is a flowchart showing the processing procedure of the activation control unit 12, and the processing procedure of the activation control unit 12 will be described in detail below with reference to FIGS. 5 and 7. When the process is started, the activation control unit 12 first checks whether or not the operating state is on by the “on / off of operating state” 121A in the operating state data 121, and turns off the operating state (non- It loops until it is in operation (step S80). When the operating state is turned off, first, a warning light (not shown) is turned on to notify the operator that the operating state is not in operation (step S81), the variable Ts is set to the current time, and the time when the operating state is turned off is set. It is stored (step S82). Then, it is checked whether or not the function key is pressed by the key code (step S
83) If the function key is not pressed even during non-operation, first, the value obtained by subtracting the current time from the time Ts (time after non-operation) is compared with "non-input allowable time". (Step S85). Step S8
If the function key is pressed in step 3, the start control data indicating start permission is sent to the machine control unit 4, the warning light is turned off, and the process returns to step S80 (steps S84 and S88). The time during which the function key is not pressed in the above step S85 is "non-input allowable time"
If it does not exceed the value, it is checked whether or not the operating state is turned on by "operating state on / off" 121A in the operating state data 121 (step S87), and if the operating state is turned on, the warning light is turned off. (Step S88),
The process returns to step S80. On the other hand, when the time during which the function key is not pressed exceeds the "non-input allowable time", the start control data indicating start prohibition is sent to the machine control unit 4
(Step S86) and loops until the function key is pressed. In addition, the "non-input allowable time"
Is internal data that presets the time required for normal work attachment / detachment, and can be set by the operator as a parameter. As described above, when the operating state is turned off (becomes non-operating), the warning light is turned on and the operator can be prompted to input the reason for non-operating. Furthermore, if the function key is not pressed even after the time required for normal workpiece attachment / detachment has passed from the time when the operating state was turned off (becomes non-operational), the inactive state is due to a reason other than workpiece attachment / detachment. Therefore, it is possible to prohibit the start-up and to force the operator to input the reason for the non-operation. Therefore, it is possible to collect accurate data on the reason for non-operation.

[0021]

According to the present invention, at least a state on / off, a time at which the state is turned on, and a state are turned off regarding the non-operating state provided for each of the energized state, the operating state, and the non-operating state, just by pressing the function key. Since the detected time is detected, and the time is aggregated and displayed in real time, the operator can aggregate and grasp the desired operation information when he / she wants in the operator's work area. further,
Since the actual state of operation / non-operation can be accurately grasped with the reason for non-operation, the activity target for improving the operation rate is clarified and the operation rate can be improved. Furthermore, since the present invention is implemented in a numerical control device that controls a machine tool, an operator of the numerical control device that controls a machine tool can view operating information while operating the numerical control device normally. The workability of the operator of the numerical control device can be significantly improved. In addition, the present invention is inexpensive and can be constructed in a compact manner, so that more excellent effects can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing procedure of an energization state detection unit.

FIG. 3 is a flowchart showing a processing procedure of an operating state detection unit.

FIG. 4 is a flowchart showing a processing procedure of a non-operating state detection unit.

FIG. 5 is a flowchart showing a processing procedure of a startup control unit.

FIG. 6 is a diagram showing an example of a screen of the present invention.

FIG. 7 is a diagram showing an example of operation information of the present invention.

[Explanation of symbols]

 1 keyboard 2 non-operating state detecting section 5 operating state detecting section 7 energized state detecting section 10 operating information display section

Claims (7)

[Claims] 1. A numerical controller comprising a display device and an input means, a timer means, an energized state detecting means for detecting on / off of a state related to an energized state and a time when the state is turned on / off, and a state signal of the numerical controller. By operating the operating state detecting means for detecting the on / off state of the operating state and the time when the state is turned on / off, and the input means to which the reason for non-operating is assigned, the non-operating provided for each non-operating reason On / off of a state related to a state, a non-working state detection unit that detects a time when the state is turned on and off, and an operation information display unit that aggregates detection results of the detection units and displays the operation information on the display device, Operation information management device in a numerical control device. 2. The operation information management device in the numerical controller according to claim 1, wherein the input means is a function key. 3. The operation information display means highlights a character string indicating the operation state when the operation state is on, and when the operation state is off, a non-operation provided for each non-operation reason. The operation information management device in the numerical control device according to claim 1, wherein a character string indicating one of the operation states is highlighted. 4. The operation information display means includes a time during which the operation state is on, a time during which the operation state is off, and a time during which a non-operation state provided for each non-operation reason is on. The operation information management device in the numerical control device according to claim 1, wherein each time ratio with respect to the time when the energized state is turned on is displayed. 5. The operation information display means is provided with a non-operating time provided when the energized state is on, the operating state is on, the operating state is off, and the non-operating reason. The operation information management device in the numerical control device according to claim 1, wherein the operation information management device according to claim 1 is configured to display a time when the operation state is on and a time ratio with respect to a predetermined time. 6. The operation information management device in a numerical control device according to claim 4, wherein each of the time ratios in the operation information display means is displayed as a band graph. 7. The activation of the numerical control device is prohibited when the time required from the time when the operating state is turned off exceeds a predetermined non-input allowable time, and the reason for non-operation is allotted. 2. The operation information management device in the numerical control device according to claim 1, further comprising means for canceling prohibition of activation of the numerical control device when the input means is operated.