CN113495528A - Non-invasive machine tool dynamic performance detection method, system, terminal and device - Google Patents
Non-invasive machine tool dynamic performance detection method, system, terminal and device Download PDFInfo
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Abstract
The invention provides a method, a system, a terminal and a device for detecting the dynamic performance of a non-invasive machine tool, which comprises the following steps: pre-storing machine tool performance reference information; acquiring machine tool current information and machine tool numerical control information which are synchronously acquired according to a preset frequency; the machine tool current information is acquired through a power supply bridging module connected with the machine tool; and generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information. The method, the system, the terminal and the device for detecting the dynamic performance of the non-invasive machine tool can acquire the dynamic data of the machine tool by a non-invasive means and effectively evaluate the dynamic performance of the machine tool by data analysis.
Description
Technical Field
The invention relates to the technical field of machine tool performance detection, in particular to a non-invasive machine tool dynamic performance detection method, a non-invasive machine tool dynamic performance detection system, a non-invasive machine tool dynamic performance detection terminal and a non-invasive machine tool dynamic performance detection device.
Background
The Numerical Control Machine tool is a short name of a digital Control Machine tool (Computer Numerical Control Machine Tools), and is an automatic Machine tool provided with a program Control system. The control system can logically process a program provided with control codes or other symbolic instructions, decode the program, represent the decoded program by coded numbers and input the coded number into the numerical control device through an information carrier; after the operation, the numerical control device sends out various control signals to control the action of the machine tool, so as to automatically process the parts according to the shape and the size required by the drawing. The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and various parts, is a flexible and high-efficiency automatic machine tool, represents the development direction of the control technology of modern machine tools, and is a typical mechanical and electrical integration product.
The dynamic performance of the machine tool directly affects the final machining efficiency and quality of the machine tool. In the prior art, only the static performance of the machine tool can be detected, and the dynamic performance is usually realized by the following two ways:
(1) assessment by fuzzy trial cut
However, the method has low accuracy and is not suitable for popularization and application.
(2) The dynamic response data of the machine tool is obtained by punching and installing an acceleration sensor on the machine tool body by an invasive method, and the performance of the machine tool is further evaluated
However, the intrusive approach has the problem of inconvenient installation and deployment, and may cause damage to machine tool mechanical and electrical components.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a method, a system, a terminal and a device for detecting the dynamic performance of a non-invasive machine tool, which can collect the dynamic data of the machine tool by a non-invasive means and effectively evaluate the dynamic performance of the machine tool by data analysis.
In order to achieve the above objects and other related objects, the present invention provides a method for detecting dynamic performance of a non-invasive machine tool, comprising the steps of: pre-storing machine tool performance reference information; acquiring machine tool current information and machine tool numerical control information which are synchronously acquired according to a preset frequency; the machine tool current information is acquired through a power supply bridging module connected with the machine tool; and generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information.
In an embodiment of the present invention, the method further includes extracting machine performance characteristic information based on the machine current information and the machine numerical control information, and updating the machine performance reference information according to the machine performance characteristic information.
Correspondingly, the invention provides a non-invasive machine tool dynamic performance detection system, which comprises a pre-storage module, an acquisition module and a generation module;
the pre-storing module is used for pre-storing machine tool performance reference information;
the acquisition module is used for acquiring machine tool current information and machine tool numerical control information which are synchronously acquired according to a preset frequency; the machine tool current information is acquired through a power supply bridging module connected with the machine tool;
the generation module is used for generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information.
The invention provides a non-invasive machine tool dynamic performance detection terminal, which comprises: a processor and a memory;
the memory is used for storing a computer program;
the processor is used for executing the computer program stored in the memory so as to enable the non-invasive machine tool dynamic performance detection terminal to execute the non-invasive machine tool dynamic performance detection method.
The invention provides a non-invasive machine tool dynamic performance detection device, which comprises the non-invasive machine tool dynamic performance detection terminal and an information acquisition module;
the information acquisition module is used for synchronously acquiring machine tool current information and machine tool numerical control information according to preset frequency and sending the machine tool current information and the machine tool numerical control information to the non-invasive machine tool dynamic performance detection terminal.
In an embodiment of the present invention, the information acquisition module includes a power supply bridge module, a current acquisition module, a numerical control communication module, and a clock synchronization module;
the power supply bridging module is connected with the machine tool and used for performing bridging power supply on the machine tool;
the current acquisition module is connected with the power supply bridging module and the clock synchronization module and is used for acquiring the current information of the machine tool on the power supply bridging module according to a synchronization signal with a preset frequency sent by the clock synchronization module;
and the numerical control communication module is connected with the machine tool and the clock synchronization module and is used for acquiring numerical control information of the machine tool according to the synchronization signal.
In an embodiment of the present invention, the information acquisition module further includes an adjustment module, and the adjustment module is connected to the clock synchronization module and is configured to adjust the frequency of the synchronization signal.
In an embodiment of the present invention, the apparatus further includes a data storage module, configured to store the machine tool current information and the machine tool numerical control information, and provide the machine tool current information and the machine tool numerical control information to the non-invasive machine tool dynamic performance detection terminal.
In an embodiment of the present invention, the apparatus further includes an analysis result display module, configured to display machine performance evaluation information generated by the non-invasive machine tool dynamic performance detection terminal.
Finally, the invention provides a non-invasive machine tool dynamic performance detection device, comprising:
the power supply bridging module is connected with the machine tool and used for performing bridging power supply on the machine tool;
the clock synchronization module is used for generating a synchronization signal based on a preset frequency;
the adjusting module is connected with the clock synchronization module and used for adjusting the frequency of the synchronization signal;
the current acquisition module is connected with the power supply bridging module and the clock synchronization module and is used for acquiring machine tool current information according to the synchronization signal;
the numerical control communication module is connected with the machine tool and the clock synchronization module and is used for acquiring numerical control information of the machine tool according to the synchronization signal;
the data storage module is connected with the current acquisition module and the numerical control communication module and is used for storing the machine tool current information and the machine tool numerical control information;
the reference information base is used for prestoring machine tool performance reference information;
the data analysis module is connected with the data storage module and the reference information base and used for generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information;
and the characteristic information sorting module is connected with the data analysis module and the reference information base and used for extracting the machine tool performance characteristic information based on the machine tool current information and the machine tool numerical control information and updating the machine tool performance reference information according to the machine tool performance characteristic information.
As described above, the method, system, terminal and apparatus for detecting the dynamic performance of the non-invasive machine tool according to the present invention have the following advantages:
(1) acquiring machine tool dynamic data by a non-invasive means, and effectively evaluating the machine tool dynamic performance by data analysis;
(2) the installation and deployment are convenient, and the mechanical and electrical components of the machine tool cannot be changed or damaged;
(3) the acquired dynamic data of the machine tool are aligned according to time, and the frequency is adjustable, so that data missing is effectively avoided, the data integrity is ensured, and the subsequent data analysis is facilitated;
(4) the accuracy of the analysis result of the dynamic performance of the machine tool is effectively improved by sorting the characteristics of the dynamic data of the machine tool;
(5) the factory quality of machine tool products can be greatly improved, machine tool enterprises can be helped to effectively evaluate the dynamic performance of the machine tools, and the product quality is assisted to be improved.
Drawings
FIG. 1 is a flow chart illustrating a method for non-intrusive machine tool dynamic performance detection in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of a non-invasive machine tool dynamic performance detection system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a non-invasive machine tool dynamic performance detection terminal according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a non-invasive apparatus for detecting machine tool dynamic performance according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a non-invasive apparatus for detecting machine tool dynamic performance according to another embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The non-invasive machine tool dynamic performance detection method, the system, the terminal and the device collect machine tool dynamic data such as machine tool current information, machine tool numerical control information and the like through a non-invasive means, acquire a machine tool performance evaluation result by analyzing the machine tool dynamic data, are convenient to install and deploy, cannot change or damage machine tool mechanical and electrical components, and are convenient to popularize and use.
As shown in fig. 1, in an embodiment, the method for detecting the dynamic performance of the non-invasive machine tool of the present invention includes the following steps:
and step S1, pre-storing machine tool performance reference information.
Specifically, machine tool performance reference information is stored in advance in a reference information base. The machine tool performance reference information can be generated according to historical machine tool dynamic data, and can provide reference information for machine tool dynamic performance detection.
In an embodiment of the present invention, the machine performance reference information includes machine performance characteristic information and evaluation information of a corresponding machining result. Wherein, the evaluation information can be obtained according to manual external measurement feedback, including the precision, quality and the like of the result. The machine tool performance characteristic information is extracted from machine tool current information and machine tool numerical control information corresponding to each machine tool current information. In an embodiment of the present invention, the numerical control information of the machine tool includes key status information (e.g., tool number, tool usage time, feed shaft position, feed shaft speed, feed shaft acceleration, spindle rotation speed, spindle acceleration, etc.) of key performance components (e.g., tool, spindle, feed shaft, etc.) of the machine tool.
The machine tool current information and the machine tool numerical control information are originally collected information and cannot be directly used for machine tool performance evaluation. Therefore, the part with obvious characteristics is extracted from the machine tool current information and the machine tool numerical control information and is used for evaluating the machine tool performance. In one embodiment of the present invention, the machine current information and the machine numerical control information are arranged in time. The machine tool performance characteristic information is extracted through a certain data analysis algorithm or a manual mode by the obvious characteristics (such as large amplitude jitter, sharp numerical value rising, sharp numerical value falling and the like, and data mutation appearing in gentle data) of the data values (such as current data).
Step S2, acquiring machine tool current information and machine tool numerical control information synchronously acquired according to preset frequency; the machine tool current information is acquired through a power supply bridging module connected with the machine tool.
Specifically, in order to avoid damaging the internal circuit or the mechanical structure of the machine tool, the invention adopts a non-invasive mode to collect the current information and the numerical control information of the machine tool.
The bridge connection power supply is carried out on the machine tool through the power supply bridge connection module, the current acquisition module acquires current signals on the power supply bridge connection module to acquire current information of the machine tool, and therefore damage to mechanical and electrical components of the machine tool caused by the traditional sensor installation mode is avoided. And acquiring the numerical control information of the machine tool generated during the operation of the machine tool through a numerical control communication module. Meanwhile, in order to align the data obtained in different modes for subsequent analysis, the invention generates a synchronous signal through the clock synchronization module to trigger the current acquisition module and the numerical control communication module. That is to say, the current collection module and the numerical control communication module collect data once when the synchronous signal occurs once. The signal trigger frequency of the clock synchronization module is preset and can be flexibly adjusted according to actual requirements.
And step S3, generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information.
Specifically, the non-invasive machine tool dynamic performance detection terminal reads the collected machine tool current information, the collected machine tool numerical control information and the prestored machine tool performance reference information according to the time sequence of data; and extracting the collected machine tool current information and the machine tool performance characteristic information of the machine tool numerical control information, and searching the machine tool performance evaluation information corresponding to the machine tool performance characteristic information in the machine tool performance reference information, thereby completing the digital evaluation of the dynamic performance of the machine tool, being visual and comparable and being convenient for a user to record and analyze.
In order to further improve the detection accuracy of the dynamic performance of the machine tool, in an embodiment of the present invention, the method for detecting the dynamic performance of the non-invasive machine tool further includes extracting machine tool performance characteristic information based on the machine tool current information and the machine tool numerical control information, and updating the machine tool performance reference information according to the machine tool performance characteristic information, so as to realize enrichment or iteration of the machine tool performance reference information. In an embodiment of the present invention, the machine tool performance characteristic information may be selected by an operator manually analyzing the machine tool current information and the machine tool numerical control information according to his personal experience. In another embodiment of the present invention, the machine tool current information and the machine tool numerical control information may be analyzed according to a preset algorithm, such as a machine learning algorithm, to select the machine tool performance characteristic information.
As shown in fig. 2, in an embodiment, the system for detecting the dynamic performance of the non-invasive machine tool of the present invention includes a pre-storing module 21, an obtaining module 22 and a generating module 23.
The pre-storing module 21 is used for pre-storing machine tool performance reference information.
The acquisition module 22 is configured to acquire machine tool current information and machine tool numerical control information synchronously acquired according to a preset frequency; the machine tool current information is acquired through a power supply bridging module connected with the machine tool.
The generation module, the pre-storage module 21 and the acquisition module are used for generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information.
The structures and principles of the pre-storage module 21, the obtaining module 22 and the generating module 23 correspond to the steps in the non-invasive method for detecting the dynamic performance of the machine tool one by one, and thus are not described herein again.
It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the x module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the x module may be called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
As shown in fig. 3, in an embodiment, the non-invasive machine tool dynamic performance detection terminal of the present invention includes: a processor 31 and a memory 32.
The memory 32 is used for storing computer programs.
The memory 32 includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
The processor 31 is connected to the memory 32, and is configured to execute the computer program stored in the memory 32, so as to enable the non-invasive machine tool dynamic performance detection terminal to execute the above-mentioned non-invasive machine tool dynamic performance detection method.
Preferably, the Processor 31 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
As shown in fig. 4, in an embodiment of the present invention, the non-invasive apparatus for detecting dynamic performance of a machine tool includes the non-invasive terminal 41 and the information collecting module 42.
The information acquisition module 42 is connected to the non-invasive machine tool dynamic performance detection terminal 41, and is configured to synchronously acquire machine tool current information and machine tool numerical control information according to a preset frequency, and send the machine tool current information and the machine tool numerical control information to the non-invasive machine tool dynamic performance detection terminal 41.
In an embodiment of the present invention, the information collecting module 42 includes a power supply bridging module 421, a current collecting module 422, a numerical control communication module 423, and a clock synchronization module 424.
The clock synchronization module 424 is configured to generate a synchronization signal according to a preset frequency.
The power supply bridge module 421 is connected to the machine tool, and is configured to perform bridge power supply to the machine tool,
the current collection module 422 is connected to the power supply bridge module 421 and the clock synchronization module 424, and is configured to collect the machine tool current information on the power supply bridge module according to a synchronization signal with a preset frequency sent by the clock synchronization module 424. Therefore, the current acquisition module 422 acquires the current signal on the power supply bridge module 421 to obtain the machine tool current information, so that the damage of the traditional sensor installation form to machine tool mechanical and electrical components is avoided.
The numerical control communication module 423 is connected with the machine tool and the clock synchronization module 424, and is configured to acquire the machine tool numerical control information during operation of the machine tool according to the synchronization signal.
And the current acquisition module and the numerical control communication module acquire data once when the synchronous signal occurs once. By the synchronous mode, the alignment of the machine tool current information and the machine tool numerical control information is realized, and the subsequent analysis and use are facilitated. The signal trigger frequency of the clock synchronization module is preset and can be flexibly adjusted according to actual requirements. Preferably, the information acquisition module 42 further includes an adjusting module 425, and the adjusting module 425 is connected to the clock synchronization module 424 and is configured to adjust the frequency of the synchronization signal generated by the clock synchronization module 424, so that a user can conveniently perform fine adjustment on a data acquisition mode, the problem of missing a beat of data acquisition is avoided, and data integrity is ensured.
In an embodiment of the present invention, the apparatus for detecting the dynamic performance of the non-invasive machine tool further includes a data storage module 43, connected to the terminal 41 for detecting the dynamic performance of the non-invasive machine tool and the information acquisition module 42, for storing the machine tool current information and the machine tool numerical control information acquired by the information acquisition module 42 and providing the machine tool current information and the machine tool numerical control information to the terminal 41 for detecting the dynamic performance of the non-invasive machine tool. The data storage module 43 records the machine tool current information and the machine tool numerical control information, so that the user can conveniently analyze historical data again, and the performance and accuracy of data analysis are improved beneficially.
In an embodiment of the present invention, the apparatus for detecting the dynamic performance of the non-invasive machine tool further includes an analysis result display module 44, connected to the terminal 41 for detecting the dynamic performance of the non-invasive machine tool, for displaying the machine tool performance evaluation information generated by the terminal 41 for detecting the dynamic performance of the non-invasive machine tool. Preferably, the analysis result display module 44 uses a graphical display device, such as a computer display, to output the machine performance analysis information in the form of graphics, tables, texts, etc. for the user to view.
As shown in fig. 5, in an embodiment, the non-invasive apparatus for detecting dynamic performance of a machine tool of the present invention includes:
and the power supply bridging module 51 is connected with the machine tool and is used for performing bridging power supply on the machine tool.
And a clock synchronization module 52 for generating a synchronization signal based on the preset frequency.
And an adjusting module 53, connected to the clock synchronizing module 52, for adjusting the frequency of the synchronizing signal.
And the current acquisition module 54 is connected with the power supply bridging module 51 and the clock synchronization module 52 and is used for acquiring the current information of the machine tool according to the synchronization signal.
And the numerical control communication module 55 is connected with the machine tool and the clock synchronization module 52 and is used for acquiring numerical control information of the machine tool according to the synchronization signal.
And the data storage module 56 is connected with the current acquisition module 54 and the numerical control communication module 55 and is used for storing the machine tool current information and the machine tool numerical control information.
And the reference information base 57 is used for prestoring machine tool performance reference information.
And the data analysis module 58 is connected with the data storage module 56 and the reference information base 57 and is used for generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information.
And the characteristic information sorting module 59 is connected with the data analysis module 58 and the reference information base 57 and is used for extracting machine tool performance characteristic information based on the machine tool current information and the machine tool numerical control information and updating the machine tool performance reference information according to the machine tool performance characteristic information.
Preferably, the system further comprises an analysis result display module connected with the data analysis module 58 and used for displaying the machine tool performance evaluation information.
In conclusion, the method, the system, the terminal and the device for detecting the dynamic performance of the non-invasive machine tool collect the dynamic data of the machine tool through a non-invasive means, and effectively evaluate the dynamic performance of the machine tool through data analysis; the installation and deployment are convenient, and the mechanical and electrical components of the machine tool cannot be changed or damaged; the acquired dynamic data of the machine tool are aligned according to time, and the frequency is adjustable, so that data missing is effectively avoided, the data integrity is ensured, and the subsequent data analysis is facilitated; the accuracy of the analysis result of the dynamic performance of the machine tool is effectively improved by sorting the characteristics of the dynamic data of the machine tool; the factory quality of machine tool products can be greatly improved, machine tool enterprises can be helped to effectively evaluate the dynamic performance of the machine tools, and the product quality is assisted to be improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A non-invasive machine tool dynamic performance detection method is characterized in that: the method comprises the following steps:
pre-storing machine tool performance reference information;
acquiring machine tool current information and machine tool numerical control information which are synchronously acquired according to a preset frequency; the machine tool current information is acquired through a power supply bridging module connected with the machine tool;
and generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information.
2. The non-invasive machine tool dynamic performance detection method according to claim 1, characterized in that: the method also comprises the steps of extracting machine tool performance characteristic information based on the machine tool current information and the machine tool numerical control information, and updating the machine tool performance reference information according to the machine tool performance characteristic information.
3. A non-invasive machine tool dynamic performance detection system is characterized in that: the device comprises a pre-storage module, an acquisition module and a generation module;
the pre-storing module is used for pre-storing machine tool performance reference information;
the acquisition module is used for acquiring machine tool current information and machine tool numerical control information which are synchronously acquired according to a preset frequency; the machine tool current information is acquired through a power supply bridging module connected with the machine tool;
the generation module is used for generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information.
4. A non-invasive machine tool dynamic performance detection terminal is characterized in that: the method comprises the following steps: a processor and a memory;
the memory is used for storing a computer program;
the processor is configured to execute the computer program stored in the memory to cause the non-invasive machine tool dynamic performance detection terminal to perform the non-invasive machine tool dynamic performance detection method of claim 1 or 2.
5. A non-invasive machine tool dynamic performance detection device is characterized in that: the non-invasive machine tool dynamic performance detection terminal comprises the non-invasive machine tool dynamic performance detection terminal of claim 4 and an information acquisition module;
the information acquisition module is used for synchronously acquiring machine tool current information and machine tool numerical control information according to preset frequency and sending the machine tool current information and the machine tool numerical control information to the non-invasive machine tool dynamic performance detection terminal.
6. The non-invasive machine tool dynamic performance detection apparatus according to claim 5, wherein: the information acquisition module comprises a power supply bridging module, a current acquisition module, a numerical control communication module and a clock synchronization module;
the power supply bridging module is connected with the machine tool and used for performing bridging power supply on the machine tool;
the current acquisition module is connected with the power supply bridging module and the clock synchronization module and is used for acquiring the current information of the machine tool on the power supply bridging module according to a synchronization signal with a preset frequency sent by the clock synchronization module;
and the numerical control communication module is connected with the machine tool and the clock synchronization module and is used for acquiring numerical control information of the machine tool according to the synchronization signal.
7. The non-invasive machine tool dynamic performance detection apparatus according to claim 6, wherein: the information acquisition module further comprises an adjusting module, and the adjusting module is connected with the clock synchronization module and used for adjusting the frequency of the synchronization signal.
8. The non-invasive machine tool dynamic performance detection apparatus according to claim 5, wherein: the non-invasive machine tool dynamic performance detection terminal also comprises a data storage module which is used for storing the machine tool current information and the machine tool numerical control information and providing the machine tool current information and the machine tool numerical control information to the non-invasive machine tool dynamic performance detection terminal.
9. The non-invasive machine tool dynamic performance detection apparatus according to claim 5, wherein: the non-invasive machine tool dynamic performance detection terminal also comprises an analysis result display module which is used for displaying the machine tool performance evaluation information generated by the non-invasive machine tool dynamic performance detection terminal.
10. A non-invasive machine tool dynamic performance detection device is characterized in that: the method comprises the following steps:
the power supply bridging module is connected with the machine tool and used for performing bridging power supply on the machine tool;
the clock synchronization module is used for generating a synchronization signal based on a preset frequency;
the adjusting module is connected with the clock synchronization module and used for adjusting the frequency of the synchronization signal;
the current acquisition module is connected with the power supply bridging module and the clock synchronization module and is used for acquiring machine tool current information according to the synchronization signal;
the numerical control communication module is connected with the machine tool and the clock synchronization module and is used for acquiring numerical control information of the machine tool according to the synchronization signal;
the data storage module is connected with the current acquisition module and the numerical control communication module and is used for storing the machine tool current information and the machine tool numerical control information;
the reference information base is used for prestoring machine tool performance reference information;
the data analysis module is connected with the data storage module and the reference information base and used for generating machine tool performance evaluation information based on the machine tool current information, the machine tool numerical control information and the machine tool performance reference information;
and the characteristic information sorting module is connected with the data analysis module and the reference information base and used for extracting the machine tool performance characteristic information based on the machine tool current information and the machine tool numerical control information and updating the machine tool performance reference information according to the machine tool performance characteristic information.
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