An intelligent energy-saving method, system, device and medium for numerical control machine tools

Abstract

The present application belongs to the field of numerical control machine tools, and particularly relates to a numerical control machine tool intelligent energy-saving method, system, device and medium. The method of the present application is as follows: starting a self-checking program; collecting a numerical control machine tool current state monitoring signal; judging the numerical control machine tool current operation state according to the numerical control machine tool current state monitoring signal, and if the numerical control machine tool is in a manual operation state, continuing to collect the numerical control machine tool current state monitoring signal; obtaining a numerical control machine tool unattended operation time; and according to the numerical control machine tool current operation state and the numerical control machine tool unattended operation time, closing the corresponding energy consumption components of the machine tool until all the devices are closed and the machine is shut down. Through numerical control machine tool state self-checking, the corresponding energy-saving mode is executed in combination with the numerical control machine tool current state, thereby playing a role in energy-saving production. If the numerical control machine tool is detected to be in a manual operation state after the energy-saving mode is started, the energy-saving mode is automatically exited, thereby avoiding affecting normal machining.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of numerical control machine tools, and particularly relates to an intelligent energy-saving method, system, device and medium for numerical control machine tools. BACKGROUND

[0002] There is no problem in the normal use of early numerical control systems or modern numerical control system machine tools, but in the actual machining process, the machine tools often appear to be wasted, and neither of them is designed with relevant technical measures in the energy waste control. For example, when the machine tool is in a normal start state, the operator does not operate in front of the machine tool, and the machine tool is not in an automatic machining state, which will cause the energy waste of the machine tool. If the number of machine tools is large and the phenomenon occurs frequently, it will cause great energy waste. In order to avoid the occurrence of this phenomenon, the only way is to reduce the occurrence of this phenomenon through management measures, that is, someone needs to be on site to patrol the equipment and turn off the wasted machine tools to reduce energy waste, but at the same time, the labor cost is increased, and it is time-consuming and laborious, and the effect is not very good. SUMMARY

[0003] The application aims to overcome the above-mentioned deficiencies, and provides an intelligent energy-saving method, system, device and medium for numerical control machine tools. The method can realize self-checking of the numerical control machine tool, and execute the corresponding energy-saving mode combined with the current state of the numerical control machine tool, thereby playing a role in energy-saving production.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows:

[0005] An intelligent energy-saving method for numerical control machine tools, comprising the following steps:

[0006] S1. starting a self-checking program;

[0007] S2. collecting a current state monitoring signal of the numerical control machine tool;

[0008] S3. judging the current operation state of the numerical control machine tool according to the current state monitoring signal of the numerical control machine tool, if the current state of the numerical control machine tool is an artificial operation state, executing S2, if the current state of the numerical control machine tool is an unattended operation state, executing S4;

[0009] S4. setting a time threshold, acquiring the unattended operation time of the numerical control machine tool, if the unattended operation time of the numerical control machine tool is less than the time threshold, executing S2, if the unattended operation time of the numerical control machine tool is greater than or equal to the time threshold, starting an energy-saving mode according to the unattended operation time of the numerical control machine tool and executing S2 at the same time, until all the devices are turned off and the devices are turned off.

[0010] The starting device for starting the self-checking program is a K parameter.

[0011] The state monitoring signal includes a current working mode, a current working state, a running time of the corresponding working mode and a running time in the corresponding working state of the numerical control machine tool.

[0012] The current operation state of the numerical control machine tool is determined according to the current state monitoring signal of the numerical control machine tool, and the current operation state of the numerical control machine tool is specifically:

[0013] When the numerical control machine tool is in the automatic mode, it is determined whether the numerical control machine tool is in a cycle process and a feed holding process, if yes, it is a manual operation state, and if no, it is an unattended operation state.

[0014] When the numerical control machine tool is in the non-automatic mode, it is determined whether the main shaft is stopped and whether the three shafts are moving, if the main shaft is stopped and the three shafts are not moving, it is an unattended operation state.

[0015] If the unattended operation time of the numerical control machine tool is greater than or equal to the time threshold, the energy saving mode is started according to the unattended operation time of the numerical control machine tool, and the energy saving mode is specifically as follows:

[0016] A plurality of time intervals are set, each time interval corresponds to an energy saving mode, when the unattended operation time of the numerical control machine tool is in a certain time interval, the corresponding energy saving mode is executed, and S2 is executed at the same time, until all components of the numerical control machine tool are turned off, and the total power supply of the machine tool is turned off.

[0017] A plurality of time intervals are set, each time interval corresponds to an energy saving mode, and the energy saving mode is specifically as follows:

[0018] t1 is set as the time threshold, t1≤time interval one

[0019] The time interval one corresponds to the three-level energy saving mode, the time interval two corresponds to the two-level energy saving mode, and the time interval three corresponds to the one-level energy saving mode.

[0020] The three-level energy saving mode, the two-level energy saving mode and the one-level energy saving mode are specifically as follows:

[0021] The three-level energy saving mode: automatically turning off the side punching cooling pump, the oil smoke processor and the chip remover of the numerical control machine tool;

[0022] The two-level energy saving mode: on the basis of the three-level energy saving mode, automatically turning off the hydraulic pump, the hydraulic oil cooler and the cooling oil cooler air pressure pump of the numerical control machine tool;

[0023] The one-level energy saving mode: automatically turning off the total power supply of the numerical control machine tool.

[0024] An intelligent energy saving system of a numerical control machine tool, comprising:

[0025] A self-checking starting module: used for starting a self-checking program;

[0026] Data collection module: for collecting the current state monitoring signal of the numerical control machine;

[0027] Automatic detection module: according to the current state monitoring signal of the numerical control machine, the current operation state of the numerical control machine is judged;

[0028] Execution module: according to the current operation state of the numerical control machine and the unattended operation time of the numerical control machine, the corresponding energy consumption components of the machine are turned off until all the devices are turned off.

[0029] An electronic device comprises a processor, a memory for storing computer program instructions, and a processor for executing the steps of the intelligent energy-saving method of the numerical control machine when the computer program is executed.

[0030] A storage medium stores computer program instructions, which are loaded and run by a processor, and the processor executes the intelligent energy-saving method of the numerical control machine.

[0031] Compared with the prior art, the present application has the following beneficial effects:

[0032] The method of the present application is: starting the self-checking program, collecting the current state monitoring signal of the numerical control machine, judging the current operation state of the numerical control machine according to the current state monitoring signal of the numerical control machine, if the numerical control machine is in manual operation state, continue to collect the current state monitoring signal of the numerical control machine, if the numerical control machine is in unattended operation state, judge whether to start the energy-saving mode. Avoiding the output of waste products caused by the arbitrary opening of the energy-saving mode due to the suspension of the machining process or the adjustment of the machine. Set a time threshold, get the unattended operation time of the numerical control machine, if the unattended operation time of the numerical control machine is less than the time threshold, continue to collect the current state monitoring signal of the numerical control machine, if the unattended operation time of the numerical control machine is greater than or equal to the time threshold, start the energy-saving mode according to the unattended operation time of the numerical control machine, until all the devices are turned off, and the devices are turned off. Through the self-checking of the numerical control machine state, combined with the current state of the numerical control machine, the corresponding energy-saving mode is executed, which plays a role in energy-saving production.

[0033] Further, if the unattended operation time of the numerical control machine is greater than or equal to the time threshold, the energy-saving mode is started according to the unattended operation time of the numerical control machine, specifically as follows: set a plurality of time intervals, each time interval corresponds to an energy-saving mode, when the unattended operation time of the numerical control machine is located in a certain time interval, the corresponding energy-saving mode is executed, and the current state monitoring signal of the numerical control machine is continuously collected until all the components of the numerical control machine are turned off and the total power of the machine is turned off. Dividing multiple time intervals and cooperating with multiple energy-saving modes can maximize the reduction of energy consumption without affecting normal machining production.

[0034] The system of the present application comprises a self-check starting module, a data collection module, an automatic detection module and an execution module. The self-check starting module is used to start a self-check program. The data collection module is used to collect the current state monitoring signal of the numerical control machine tool, so as to facilitate the real-time detection and control of the system. The automatic detection module is used to judge the current operation state of the numerical control machine tool according to the current state monitoring signal of the numerical control machine tool. The execution module is used to close the corresponding energy consumption components of the machine tool according to the current operation state of the numerical control machine tool and the unattended operation time of the numerical control machine tool, until all the devices are closed and the machine is shut down. The modules are coordinated with each other, and the energy consumption components of the numerical control machine tool are closed in stages, so that the energy consumption is maximizedly reduced, and the output of waste products caused by the arbitrary opening of the energy saving mode due to the suspension of the machining process or the adjustment of the machine tool is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 The working flow chart logic diagram of the present application is shown in the figure.

[0036] Figure 2 The K parameter definition ladder diagram of the present application is shown in the figure.

[0037] Figure 3 The energy saving control subroutine screenshot of the present application is shown in the figure.

[0038] Figure 4-1 The three-level energy saving control PLC program screenshot of the present application is shown in the figure.

[0039] Figure 4-2 The two-level energy saving control PLC program screenshot of the present application is shown in the figure.

[0040] Figure 4-3 The one-level energy saving control PLC program screenshot of the present application is shown in the figure.

[0041] Figure 4-4 The energy saving control PLC program screenshot of the present application is shown in the figure.

[0042] Figure 5 The skill control electrical schematic diagram of the present application is shown in the figure.

[0043] Figure 6 The energy saving alarm information setting of the present application is shown in the figure. DETAILED DESCRIPTION

[0044] The present application will be further described below in combination with the drawings.

[0045] As Figure 1 shown in the figure is the working flow chart logic diagram of the present application, Figure 3 shown in the figure is the energy saving control subroutine screenshot of the present application, and Figure 5 shown in the figure is the skill control electrical schematic diagram of the present application. A numerical control machine tool intelligent energy saving method comprises the following steps:

[0046] S1. Start a self-check program;

[0047] The starting device of the starting self-checking procedure is a K parameter. It can be started manually by the equipment maintenance personnel or the production and processing personnel. The K parameter is a holding line relay, as shown in the following formula: Figure 2 The K parameter definition ladder diagram of the present application is shown in the following formula.

[0048] Preferably, 1 unused K parameter is defined to control whether the function is started or not, as shown in the following formula: Figure 2 The K parameter number used in the modification is shown in the following formula. The starting self-checking function is started by K10.0=1, and the starting self-checking function is stopped by K10.0=0.

[0049] S2. Collecting the current state monitoring signal of the numerical control machine tool;

[0050] The state monitoring signal includes the current working mode, working state, running time of the corresponding working mode and running time in the corresponding working state of the numerical control machine tool.

[0051] S3. Judging the current operation state of the numerical control machine tool according to the current state monitoring signal of the numerical control machine tool. If the current operation state of the numerical control machine tool is the manual operation state, S2 is executed. If the current operation state of the numerical control machine tool is the unattended operation state, S4 is executed.

[0052] The judging the current operation state of the numerical control machine tool according to the current state monitoring signal of the numerical control machine tool is specifically:

[0053] When the numerical control machine tool is in the automatic mode, it is judged whether the numerical control machine tool is in the cycle process and the feed holding. If yes, it is the manual operation state. If no, it is the unattended operation state.

[0054] When the numerical control machine tool is in the non-automatic mode, it is judged whether the main shaft is stopped and whether the three shafts are moving. If the main shaft is stopped and the three shafts are not moving, it is the unattended operation state.

[0055] S4. Setting a time threshold, acquiring the unattended operation time of the numerical control machine tool. If the unattended operation time of the numerical control machine tool is less than the time threshold, S2 is executed. If the unattended operation time of the numerical control machine tool is greater than or equal to the time threshold, the energy saving mode is started according to the unattended operation time of the numerical control machine tool, and S2 is executed until all the devices are closed, the device is powered off, and the alarm device alarms and prompts, as shown in the following formula: Figure 6 The energy saving alarm information setting is shown in the following formula.

[0056] If the unattended operation time of the numerical control machine tool is greater than or equal to the time threshold, the energy saving mode is started according to the unattended operation time of the numerical control machine tool, and the specific steps are as follows:

[0057] Set several time intervals, each time interval corresponds to an energy saving mode, when the numerical control machine tool is not operated for a certain time interval, the corresponding energy saving mode is executed, and S2 is executed until all parts of the numerical control machine tool are closed, and the total power of the machine tool is closed. Divide multiple time intervals and cooperate with multiple energy saving modes, which maximizes the reduction of energy consumption without affecting normal processing production.

[0058] Preferably, setting several time intervals, each time interval corresponds to an energy saving mode, specifically:

[0059] Set t1 as the time threshold, t1≤time interval one

[0060] Time interval one corresponds to a three-level energy saving mode, time interval two corresponds to a two-level energy saving mode, and time interval three corresponds to a one-level energy saving mode.

[0061] Three-level energy saving mode, two-level energy saving mode, and one-level energy saving mode are as follows:

[0062] Three-level energy saving mode: automatically turn off the side flushing cooling pump, oil smoke processor and chip remover of the numerical control machine tool, as shown in Figure 4-1 The three-level energy saving control PLC program screenshot of the present application is shown in

[0063] Two-level energy saving mode: on the basis of three-level energy saving mode, automatically turn off the hydraulic pump, hydraulic oil cooler and cooling oil cooler air pressure pump of the numerical control machine tool, as shown in Figure 4-2 The two-level energy saving control PLC program screenshot of the present application is shown in

[0064] One-level energy saving mode: automatically turn off the total power of the numerical control machine tool, as shown in Figure 4-3 The one-level energy saving control PLC program screenshot of the present application is shown in

[0065] Preferably, as shown in Figure 4-4 The energy saving control PLC program screenshot of the present application is shown in, the time threshold is set to 2 minutes, if the self-checking detects that the numerical control machine tool is not operated for more than 2 minutes, the three-level energy saving mode is executed, and the low-energy-consumption components are automatically turned off, if the self-checking detects that the numerical control machine tool is not operated for more than 5 minutes, the two-level energy saving mode is executed, and the high-energy-consumption components are automatically turned off, if the self-checking detects that the numerical control machine tool is not operated for more than 10 minutes, the one-level energy saving mode is executed, and the numerical control machine tool is automatically turned off.

[0066] Preferably, the method of the present application is: manually starting the self-checking program by K parameter. Collecting the current state monitoring signal of the numerical control machine tool, the current state monitoring signal including the current working mode, working state, running time of the corresponding working mode and running time in the corresponding working state of the numerical control machine tool. Judging the current operation state of the numerical control machine tool according to the current state monitoring signal of the numerical control machine tool, if the numerical control machine tool is currently in the manual operation state, continue to collect the current state monitoring signal of the numerical control machine tool, if the numerical control machine tool is currently in the unattended operation state, judge whether to start the energy saving mode. Avoiding the output of waste products caused by the arbitrary opening of the energy saving mode due to the process pause or the adjustment of the machine tool. Setting a time threshold, obtaining the unattended operation time of the numerical control machine tool, if the unattended operation time of the numerical control machine tool is less than the time threshold, continue to collect the current state monitoring signal of the numerical control machine tool, if the unattended operation time of the numerical control machine tool is greater than or equal to the time threshold, start the energy saving mode according to the unattended operation time of the numerical control machine tool, until all the devices are closed, the machine is turned off, the state of the numerical control machine tool is self-checked, the corresponding energy saving mode is executed according to the current state of the numerical control machine tool, and the effect of energy saving production is achieved. If the current state of the numerical control machine tool is detected as the manual operation state after the energy saving mode is started, the energy saving mode is automatically exited, so as to avoid the influence on normal machining. The method can achieve the effects of timely self-checking and opening of the energy saving mode, and avoiding the output of waste products caused by the arbitrary opening of the energy saving mode due to the process pause or the adjustment of the machine tool. The self-checking energy saving technology of the present application is mainly applied to two situations, one is that the old equipment is not designed with energy saving function in the early design. The other is that the modern equipment is designed with some energy saving functions, but they are too general and not suitable for the actual situation of machining production. For the above two situations, the method adds a PMC subprogram P500 (program name annotation: intelligent energy saving), which mainly uses the special state monitoring signal of the numerical control system to self-check the state of the machine tool and perform hierarchical processing. The hierarchical results analyzed and processed in the subprogram are used to close the corresponding energy consuming components in the PMC main program. By setting the hierarchical processing time user timer, the maintenance personnel can adjust in real time according to different machine tool production situations, so as to realize the intelligent energy saving of the numerical control machine tool, and significantly reduce the energy consumption of the machine tool.

[0067] The present application can realize the self-checking of the numerical control machine tool whether it is in the unattended operation state, only one PMC K parameter needs to be set to open the automatic detection energy saving function, the function is simple and practical, without the need of additional hardware, only the PMC program of the machine tool can be copied, so it can be easily popularized to another machine tool. And different versions of FANUC numerical control system can be used, at the same time, it is not limited to the type of machine tool, numerical control lathes and machining centers can be used, it has good universality, low cost and simple upgrading.

[0068] An intelligent energy-saving system for a numerical control machine tool, comprising:

[0069] a self-check starting module for starting a self-check program;

[0070] a data collection module for collecting current state monitoring signals of the numerical control machine tool;

[0071] an automatic detection module for judging a current operation state of the numerical control machine tool according to the current state monitoring signals of the numerical control machine tool;

[0072] an execution module for shutting down corresponding energy-consuming components of the numerical control machine tool according to the current operation state of the numerical control machine tool and an unattended operation time of the numerical control machine tool until all devices are shut down and the devices are powered off.

[0073] Preferably, the system of the present application comprises the self-check starting module, the data collection module, the automatic detection module and the execution module. The self-check starting module is used for starting a self-check program. The data collection module is used for collecting current state monitoring signals of the numerical control machine tool, facilitating real-time detection and control of the system. The automatic detection module is used for judging a current operation state of the numerical control machine tool according to the current state monitoring signals of the numerical control machine tool. The execution module is used for shutting down corresponding energy-consuming components of the numerical control machine tool according to the current operation state of the numerical control machine tool and an unattended operation time of the numerical control machine tool until all devices are shut down and the devices are powered off. The modules are coordinated with each other, and the energy consumption of the numerical control machine tool is maximally reduced by shutting down the energy-consuming components of the numerical control machine tool in stages, while the output of waste products caused by the arbitrary opening of the energy-saving mode due to the suspension of the machining process or the adjustment of the machine tool is avoided. The system is applicable to different versions of FANUC numerical control systems, and is not limited to the type of machine tool, and can be used for numerical control lathes and machining centers, and has good versatility, low cost and simple upgrading and modification. The method of automatically shutting down the energy-consuming components of the machine tool in time periods according to the self-checking state of the machine tool can effectively avoid the idle consumption of the machine tool, reduce the production electricity cost, and has great significance.

[0074] An electronic device, comprising: a processor; a memory for storing computer program instructions; and a processor for implementing the steps of the intelligent energy-saving method for a numerical control machine tool when the computer program is executed.

[0075] A storage medium storing computer program instructions, which are loaded and run by a processor, and the processor executes an intelligent energy-saving method for a numerical control machine tool.

[0076] Those skilled in the art will appreciate that embodiments of the application can be devised for a method, a system, or a computer program product. Accordingly, the present application can be embodied in the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) embodying computer readable program code.

[0077] The present application is described in reference to the flowchart and / or block diagrams of the method, apparatus (system) and computer program product according to embodiments of the application. It will be understood that each block of the flowchart and / or block diagrams, and combinations of blocks in the flowchart and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processing device or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks.

[0078] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks.

[0079] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks.

[0080] Finally, it should be noted that the above-mentioned embodiments are merely intended for describing the technical solutions of the present application, but not for limiting it. Although the present application is described in detail with reference to the above embodiments, those skilled in the field should understand that the specific embodiments of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and any modification or equivalent replacement without departing from the spirit and scope of the present application should be covered in the protection scope of the claims of the present application.

Claims

1. A smart energy-saving method for CNC machine tools, characterized in that, Includes the following steps: S1. Start the self-test program; S2. Collect current status monitoring signals of CNC machine tools; S3. Determine the current operating status of the CNC machine tool based on the current status monitoring signal. If the CNC machine tool is currently in manual operation mode, execute S2. If the CNC machine tool is currently in unmanned operation mode, execute S4. S4. Set a time threshold and obtain the unattended operation time of the CNC machine tool. If the unattended operation time of the CNC machine tool is less than the time threshold, execute S2. If the unattended operation time of the CNC machine tool is greater than or equal to the time threshold, activate the energy-saving mode according to the unattended operation time of the CNC machine tool and execute S2 simultaneously until all equipment is turned off. The equipment is then shut down, as detailed below: Set t1 as the time threshold, t1≤time interval one<t2, t2≤time interval two<t3, t3≤time interval three; Time interval one corresponds to the third-level energy-saving mode, time interval two corresponds to the second-level energy-saving mode, and time interval three corresponds to the first-level energy-saving mode. When the unattended time of the CNC machine tool is within a certain time range, the corresponding energy-saving mode is executed, and S2 is executed at the same time; The three-level energy-saving mode, the two-level energy-saving mode, and the first-level energy-saving mode are based on the previous level energy-saving mode, and gradually shut down more and more equipment until all components of the CNC machine tool are shut down and the main power supply of the machine tool is turned off.

2. The intelligent energy-saving method for CNC machine tools as described in claim 1, characterized in that, The starting device for the self-test program described in S1 is a K parameter.

3. The intelligent energy-saving method for CNC machine tools as described in claim 1, characterized in that, The status monitoring signal mentioned in S2 includes the current working mode, working status, running time of the corresponding working mode, and running time of the corresponding working status of the CNC machine tool.

4. The intelligent energy-saving method for CNC machine tools as described in claim 1, characterized in that, S3 describes determining the current operating status of a CNC machine tool based on its current status monitoring signal as follows: When the CNC machine tool is in automatic mode, determine whether the CNC machine tool is in the process of cycling or in the feed holding state. If yes, it is in manual operation mode; otherwise, it is in unmanned operation mode. When the CNC machine tool is in non-automatic mode, it is determined whether the spindle has stopped and whether the three axes are moving. If the spindle has stopped and the three axes are not moving, it is in an unmanned operation state.

5. The intelligent energy-saving method for CNC machine tools as described in claim 1, characterized in that, The three-level energy-saving mode, the two-level energy-saving mode, and the first-level energy-saving mode are described in detail below: Level 3 energy-saving mode: Automatically shuts down the side-flush cooling pump, fume processor, and chip conveyor of the CNC machine tool; Level 2 energy-saving mode: Based on the level 3 energy-saving mode, it automatically shuts down the hydraulic pump, hydraulic oil cooler, and cooling oil cooler pneumatic pump of the CNC machine tool; Level 1 energy-saving mode: Automatically shuts off the main power supply to the CNC machine tool.

6. An intelligent energy-saving system for CNC machine tools, characterized in that, include: Self-test startup module: Used to start the self-test program; Data collection module: used to collect current status monitoring signals of CNC machine tools; Automatic detection module: Determines the current operating status of the CNC machine tool based on the current status monitoring signal; Execution module: Based on the current operating status of the CNC machine tool and the unattended operation time, shut down the corresponding energy-consuming components of the machine tool until all equipment is turned off and the equipment is shut down, as detailed below: Set t1 as the time threshold, t1≤time interval one<t2, t2≤time interval two<t3, t3≤time interval three; Time interval one corresponds to the third-level energy-saving mode, time interval two corresponds to the second-level energy-saving mode, and time interval three corresponds to the first-level energy-saving mode. When the unattended time of the CNC machine tool is within a certain time range, the corresponding energy-saving mode is executed, and S2 is executed at the same time; The three-level energy-saving mode, the two-level energy-saving mode, and the first-level energy-saving mode are based on the previous level energy-saving mode, and gradually shut down more and more equipment until all components of the CNC machine tool are shut down and the main power supply of the machine tool is turned off.

7. An electronic device, comprising: processor; A memory for storing computer program instructions; characterized in that, when executing the computer program, it implements the steps of the intelligent energy-saving method for CNC machine tools as described in any one of claims 1-5.

8. A storage medium storing computer program instructions, characterized in that, When the computer program instructions are loaded and run by the processor, the processor executes the intelligent energy-saving method for CNC machine tools according to any one of claims 1-5.

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