CN111596611A - Dynamic characteristic test and analysis system of numerical control machine tool - Google Patents
Dynamic characteristic test and analysis system of numerical control machine tool Download PDFInfo
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention relates to the technical field of numerical control machines, in particular to a system for testing and analyzing the dynamic characteristics of a numerical control machine. In order to facilitate related technicians to accurately know the dynamic characteristics of the numerical control machine, the invention provides a dynamic characteristic test analysis system of the numerical control machine, wherein an excitation device is electrically connected with a data acquisition device and sends an excitation analog signal to the data acquisition device in real time; the sensing device is arranged at a test point on the numerical control machine tool to be tested, monitors the vibration of the numerical control machine tool to be tested in real time, converts the vibration into a vibration analog signal and transmits the vibration analog signal to the data acquisition device; the data acquisition device respectively converts the analog signals into digital signals and transmits the digital signals to the data processing, analyzing and storing device; and the data processing and analyzing storage device processes and analyzes the excitation digital signal and the vibration digital signal to obtain a frequency response result of the test point. The numerical control machine tool dynamics characteristic test analysis system tests the real object of the numerical control machine tool, and the obtained frequency response result is more accurate.
Description
Technical Field
The invention relates to the technical field of numerical control machines, in particular to a system for testing and analyzing the dynamic characteristics of a numerical control machine.
Background
The numerical control machine tool is production equipment with strong adaptability and high processing precision, and is widely applied to various production fields. In the operation process, a main shaft in the numerical control machine tool can generate vibration due to high-speed rotation, and the vibration is transmitted to all parts of the numerical control machine tool through connecting pieces. Therefore, during operation, vibration of each part on the numerical control machine tool is inevitable. In addition, when the natural frequency of a certain part on the numerical control machine tool is consistent with the frequency of vibration transmitted to the part, the part can generate strong resonance, and the safe operation of the numerical control machine tool is seriously threatened. In order to improve the operation safety of the numerical control machine, related technicians need to test the dynamic characteristics of the numerical control machine in the process of designing, trial-manufacturing and debugging the numerical control machine, so that the related technicians can know the dynamic characteristics of the numerical control machine, improve the design according to the test result and adjust the operation parameters, thereby avoiding resonance.
At present, those skilled in the art mainly use finite element software to perform simulation tests to obtain the dynamic characteristics of the numerical control machine tool. However, because there is always a certain difference between the test model obtained by modeling and the real object, there is inevitably a certain deviation between the simulation result and the actual measurement result, and then the related technical personnel, especially the designer, cannot accurately know the characteristics of the numerical control machine, and even more cannot avoid the occurrence of resonance on the numerical control machine by improving the design.
Disclosure of Invention
In order to facilitate related technicians to accurately know the dynamic characteristics of the numerical control machine, the invention provides a dynamic characteristic test and analysis system of the numerical control machine, which comprises an excitation device, a sensing device, a data acquisition device and a data processing, analyzing and storing device, wherein the excitation device is electrically connected with the data acquisition device and sends an excitation analog signal to the data acquisition device in real time; the sensing device is arranged at a test point on the numerical control machine tool to be tested and used for monitoring the vibration of the numerical control machine tool to be tested, converting the vibration into a vibration analog signal and transmitting the vibration analog signal to the data acquisition device in real time; the data acquisition device respectively converts the excitation analog signal and the vibration analog signal into an excitation digital signal and a vibration digital signal and transmits the excitation digital signal and the vibration digital signal to the data processing, analyzing and storing device; and the data processing, analyzing and storing device processes and analyzes the excitation digital signal and the vibration digital signal to obtain a frequency response result of the test point.
When the system is used, the numerically-controlled machine tool dynamic characteristic test analysis system knocks the numerically-controlled machine tool to be tested through the excitation device, excites each part of the numerically-controlled machine tool to be tested to vibrate, and transmits an excitation analog signal to the data acquisition device in real time; collecting the vibration of each test point on the numerical control machine tool to be tested through a sensing device, converting the vibration into a vibration simulation signal and transmitting the vibration simulation signal to a data collecting device; the data acquisition device converts the received excitation analog signal and the vibration analog signal into an excitation digital signal and a vibration digital signal and transmits the excitation digital signal and the vibration digital signal to the data processing analysis storage device; and the data processing, analyzing and storing device processes and analyzes the vibration digital signal and the excitation digital signal to obtain the frequency response result of each test point. Therefore, the dynamic characteristic test analysis system of the numerical control machine tool provided by the invention can be used for actually testing the vibration condition of the numerical control machine tool to be tested and processing and analyzing the data obtained by testing to obtain the frequency response result of each test point on the numerical control machine tool to be tested, and is more accurate compared with the simulation result obtained by using a finite element simulation test in the prior art. In addition, the related technical personnel can draw the frequency response curve of each test point according to the frequency response result obtained by the test analysis, the natural frequency of the position where each test point is located is determined, the related technical personnel, particularly designers, can conveniently know the dynamic characteristics of the numerical control machine tool to be tested more accurately, therefore, the designers can conveniently improve and design the numerical control machine tool according to the frequency response result obtained by the test analysis, the users can conveniently adjust the operation parameters of the numerical control machine tool according to the frequency response result obtained by the test analysis, further, the resonance of the numerical control machine tool in the operation process can be avoided, the processing quality and the processing precision of the numerical control machine tool are ensured, and the processing reliability and the safety of the numerical.
Preferably, the data processing, analyzing and storing device performs fast fourier transform on the excitation digital signal to obtain fourier transform X (j ω) of the excitation digital signal, performs fast fourier transform on the vibration digital signal to obtain fourier transform Y (j ω) of the vibration digital signal, and calculates a frequency response result of the test point according to a frequency response function H (j ω) of the excitation digital signal and the vibration digital signal, and the data processing, analyzing and storing device calculates the frequency response result of the test point according to the frequency response function H (j ω) of the excitation digital signal and the vibration digital signal
Wherein the content of the first and second substances,
j is a unit of a plurality of numbers,
ω is the frequency.
Thus, the data processing, analyzing and storing device obtains the Fourier transform X (j omega) of the excitation digital signal and the Fourier transform Y (j omega) of the vibration digital signal by performing fast Fourier transform processing on the excitation digital signal and the vibration digital signal, so that the frequency response result of the test point calculated according to the frequency response function H (j omega) is accurate, related technicians can conveniently draw the frequency response curve of each test point according to the frequency response result corresponding to each test point to determine the natural frequency of the position of each test point, whether resonance occurs in the test point is judged, designers can conveniently improve and design a numerical control machine according to the frequency response result obtained by test analysis, and can conveniently adjust the operation parameters of the numerical control machine according to the frequency response result obtained by test analysis, so as to avoid the numerical control machine from generating resonance in the operation process, the processing quality, precision, reliability and safety of the numerical control machine tool are improved.
Preferably, the data processing, analyzing and storing device comprises a processing and analyzing module and a storing module, wherein the processing and analyzing module is used for processing and analyzing the excitation digital signal and the vibration digital signal; the storage module is electrically connected with the processing and analyzing module and is used for storing monitoring data and the frequency response result of the test point. Therefore, the data analysis module is used for processing and analyzing the excitation digital signal and the vibration digital signal, and the operation is convenient and fast; the storage module is used for storing the monitoring data and the frequency response result obtained by processing and analyzing of the processing and analyzing module, so that related technicians can conveniently check the frequency response result when needed. Furthermore, the data processing, analyzing and storing device further comprises a display module, wherein the display module is electrically connected with the storage module and is used for displaying the monitoring data and the frequency response result. Therefore, in the using process, related technicians can call the monitoring data and the frequency response result as required to be displayed in the display module, and the checking is convenient. Further preferably, the data processing, analyzing and storing device can be a PC or a workstation, and is simple and convenient to select.
Preferably, a force sensor is arranged in the excitation device, and the force sensor is electrically connected with the data acquisition device and is used for monitoring the excitation force of the excitation device in real time, converting the excitation force into the excitation analog signal and transmitting the excitation analog signal to the data acquisition device. Therefore, when the excitation device knocks the numerical control machine tool to be tested, the force sensor built in the excitation device can accurately monitor the excitation force signal of the excitation device in real time, and the accuracy of the frequency response result of the test point obtained by processing and analyzing the data processing, analyzing and storing device can be improved. Further, the excitation device can be a force hammer or an exciter. The excitation device is convenient to select and simple to install, use and operate.
Preferably, a plurality of vibration sensors electrically connected with the data acquisition device are arranged in the sensing device, the vibration sensors are arranged at test points on the numerical control machine tool to be tested, and the test points are distributed on a main shaft, a clamping platform and a lathe bed of the numerical control machine tool to be tested. Like this, the vibration sensor that sensing device usable was laid at different test points carries out real-time supervision to the vibration of corresponding test point to can learn the vibration condition at different positions on the digit control machine tool that awaits measuring, and then can confirm the natural frequency at each position of digit control machine tool that awaits measuring and whether have resonance, improve the design with the designer of convenient digit control machine tool, the user adjusts operating parameter, avoids the digit control machine tool that awaits measuring to take place resonance at the operation in-process. Furthermore, the vibration sensor can be an acceleration sensor, a speed sensor or a displacement sensor, and is convenient to select and use.
Preferably, the data acquisition device can select a data acquisition instrument, and the material selection is simple and convenient.
Drawings
FIG. 1 is a block diagram of the dynamic characteristic testing and analyzing system of the numerically controlled machine tool according to the present invention;
fig. 2 is a schematic diagram of the layout of a vibration sensor in a sensing device in the system for testing and analyzing the dynamic characteristics of the numerical control machine tool on the numerical control machine tool to be tested according to the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.
In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms will be used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be construed as words of convenience and should not be construed as limiting terms.
The present invention will be described in detail with reference to fig. 1 and 2.
As shown in fig. 1, the system for testing and analyzing dynamic characteristics of a numerical control machine according to the present invention includes an excitation device 100, a sensing device 200, a data acquisition device 300, and a data processing, analyzing and storing device 400. The excitation device 100 is electrically connected to the data acquisition device 300, and transmits the excitation analog signal to the data acquisition device 300 in real time when the excitation device 100 strikes the numerically-controlled machine tool 500 to be tested. Preferably, a force sensor 101 is arranged in the excitation device 100, the force sensor 101 is electrically connected with the data acquisition device 300, and when the excitation device 100 knocks the numerically-controlled machine tool 500 to be tested, the force sensor 101 monitors the excitation force of the excitation device 100 and converts the excitation force into an excitation analog signal to be transmitted to the data acquisition device 300 in real time. Preferably, the excitation device 100 may be a force hammer or an exciter. Such an excitation device 100 is convenient to select and simple to install and operate.
The sensing device 200 is arranged at a test point on the numerically controlled machine tool 500 to be tested, and is used for monitoring the vibration of the numerically controlled machine tool 500 to be tested, converting the vibration into a vibration analog signal and transmitting the vibration analog signal to the data acquisition device 300 in real time. Preferably, a plurality of vibration sensors 201 electrically connected to the data acquisition device 300 are disposed in the sensing device 200, as shown in fig. 2, the vibration sensors 201 are disposed at test points distributed on a spindle 501, a clamping platform 502 and a bed 503 of the numerically controlled machine tool 500 to be tested, and convert the monitored vibration signals into vibration analog signals to be transmitted to the data acquisition device 300 in real time. Since the numerical control machine 500 to be measured is of a symmetrical structure, in order to obtain more dynamic characteristics, i.e., dynamic characteristics, of the numerical control machine 500 to be measured, the vibration sensors 201 are asymmetrically arranged on the numerical control machine 500 to be measured. In addition, since the node of the modal shape is not vibrated theoretically, when the system for testing and analyzing the dynamic characteristics of the numerical control machine tool of the present invention is specifically installed, the vibration sensor 201 in the sensing device 200 needs to avoid the node of the modal shape, and the number and the position of the test points can be set according to the test requirements by the specific arrangement. Preferably, the vibration sensor can be an acceleration sensor, a speed sensor or a displacement sensor, such as a Kistler 8763B piezoelectric acceleration sensor, and is convenient to select and use.
After receiving the excitation analog signal, the data acquisition device 300 converts the excitation analog signal into an excitation digital signal and transmits the excitation digital signal to the data processing, analyzing and storing device 400; after receiving the vibration analog signal, the vibration analog signal is converted into a vibration digital signal and transmitted to the data processing, analyzing and storing device 400. Preferably, the data acquisition device 300 can be selected from a data acquisition instrument, such as an SIEMENS LMS SCADAS XS data acquisition instrument, and the material selection is simple and convenient.
The data processing, analyzing and storing device 400 processes and analyzes the excitation digital signal and the vibration digital signal to obtain the frequency response result of each test point. Preferably, the data processing, analyzing and storing device 400 comprises a data processing and analyzing module 401, a storage module 402 and a display module 403, wherein the data processing and analyzing module 401 is used for processing and analyzing the excitation digital signal and the vibration digital signal; the storage module 402 is electrically connected with the data processing and analyzing module 401 and is used for storing monitoring data and frequency response results of the test points; the display module 403 is electrically connected to the storage module 402 for displaying the monitoring data and the frequency response result. In this way, the data processing and analyzing module 401 is used for processing and analyzing the excitation digital signal and the vibration digital signal, which is convenient and fast; the storage module 402 is used for storing the monitoring data and the frequency response result obtained by the processing and analyzing module 401, so that the monitoring data and the frequency response result can be conveniently checked by related technicians when needed; in the using process, the related technical personnel can call the monitoring data and the frequency response result as required to be displayed in the display module 403, and the checking is convenient. Preferably, the data processing, analyzing and storing device 400 can be a PC or a workstation, and is easy and convenient to select. Preferably, when the data processing and analyzing module 401 in the data processing and analyzing storage device 400 processes and analyzes the excitation digital signal and the vibration digital signal, it first performs fast fourier transform on the excitation digital signal to obtain fourier transform X (j ω) of the excitation digital signal, and performs fast fourier transform on the vibration digital signal to obtain fourier transform Y (j ω) of the vibration digital signal; then, the frequency response result of the test point corresponding to the vibration digital signal is calculated according to the frequency response functions H (j omega) of the excitation digital signal and the vibration digital signal, and
wherein the content of the first and second substances,
j is a unit of a plurality of numbers,
ω is the frequency.
In this way, the data processing analysis storage device 400 performs fast fourier transform processing on the excitation digital signal and the vibration digital signal to obtain fourier transform X (j ω) of the excitation digital signal and fourier transform Y (j ω) of the vibration digital signal, thereby calculating the frequency response result of the test point from the frequency response function H (j ω). The frequency response result obtained by calculation is accurate, and related technicians can conveniently determine the natural frequency of the position where the test point is located according to the frequency response result corresponding to each test point, so that whether resonance occurs in the test point is judged, designers can conveniently improve and design the numerical control machine according to the frequency response result obtained by test analysis, and users can conveniently adjust the operation parameters of the numerical control machine according to the frequency response result obtained by test analysis, so that the numerical control machine is prevented from generating resonance in the operation process, and the processing quality, precision, reliability and safety of the numerical control machine are improved.
When the system is used, the numerically-controlled machine tool is powered on and the force hammer, the sensing device, the data acquisition instrument and the PC in the system for testing and analyzing the dynamic characteristics of the numerically-controlled machine tool are started when the numerically-controlled machine tool is kept in a shutdown state. The working process of the dynamic characteristic testing and analyzing system of the numerical control machine tool is as follows:
randomly knocking a certain position of the numerical control machine tool to be tested, such as a main shaft, by using a force hammer to excite each part of the numerical control machine tool to be tested to vibrate, and meanwhile, converting a monitored excitation force signal into an excitation analog signal by using a force sensor in the force hammer and transmitting the excitation analog signal to a data acquisition instrument in real time;
when vibration on the numerical control machine tool to be detected is transmitted to each test point, a vibration sensor arranged in each test point in the sensing device monitors the vibration of each test point, converts a monitored vibration signal into a vibration simulation signal and transmits the vibration simulation signal to the data acquisition instrument in real time;
the data acquisition instrument respectively converts the received excitation analog signal and the vibration analog signal into an excitation digital signal and a vibration digital signal, transmits the excitation digital signal and the vibration digital signal to the PC and stores the excitation digital signal and the vibration digital signal in a storage module of the PC;
after receiving the excitation digital signal and the vibration digital signal, the PC respectively carries out fast Fourier transform processing on the excitation digital signal and the vibration digital signal corresponding to each test point to obtain Fourier transform X (j omega) of the excitation digital signal and Fourier transform Y (j omega) of the vibration digital signal, and then utilizes a frequency response function
And calculating the frequency response result of the test point corresponding to each vibration digital signal, and storing the frequency response result in a storage module in the PC.
Therefore, the related technical personnel can draw the frequency response curve of each test point according to the calculated frequency response result of each test point, thereby determining the natural frequency of the position of each test point, and the related technical personnel can conveniently judge whether each test point resonates in the running process of the numerical control machine tool to be tested, so that the designer can conveniently improve and design the numerical control machine tool according to the frequency response result obtained by test analysis, the user can conveniently adjust the running parameters of the numerical control machine tool according to the frequency response result obtained by test analysis, further the numerical control machine tool can be prevented from resonating in the running process, the processing quality and the processing precision of the numerical control machine tool can be ensured, and the processing reliability and the safety of the numerical control machine tool can be improved.
In summary, the system for testing and analyzing the dynamic characteristics of the numerical control machine tool provided by the invention is used for actually testing the vibration condition of the numerical control machine tool to be tested and processing and analyzing the data obtained by testing to obtain the frequency response result of each test point on the numerical control machine tool to be tested, and is more accurate compared with the simulation result obtained by using a finite element simulation test in the prior art. The related technical personnel can draw the frequency response curve of each test point according to the frequency response result, confirm the natural frequency at each test point position, judge whether each test point resonates in the digit control machine tool operation process that awaits measuring, make things convenient for related technical personnel especially designer to know the dynamics characteristic of the digit control machine tool that awaits measuring more accurately, thereby be convenient for the designer to carry out improved design to the digit control machine tool according to the frequency response result that the test analysis obtained, the operating parameter of digit control machine tool is adjusted according to the frequency response result that the test analysis obtained to the user of being convenient for, and then can avoid the digit control machine tool to resonate in the operation process, ensure the processingquality and the machining precision of digit control machine tool, the processing reliability and the security. In addition, the equipment adopted in the system for testing and analyzing the dynamic characteristics of the numerical control machine tool is universal equipment, and the system has the advantages of small quantity of equipment, simple installation, convenient operation, low professional requirement on testers and low use cost.
While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.
These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.
Claims (10)
1. A dynamic characteristic test and analysis system of a numerical control machine tool is characterized by comprising an excitation device, a sensing device, a data acquisition device and a data processing, analyzing and storing device, wherein the excitation device is electrically connected with the data acquisition device and sends an excitation analog signal to the data acquisition device in real time; the sensing device is arranged at a test point on the numerical control machine tool to be tested and used for monitoring the vibration of the numerical control machine tool to be tested in real time, converting the vibration into a vibration analog signal and transmitting the vibration analog signal to the data acquisition device; the data acquisition device respectively converts the excitation analog signal and the vibration analog signal into an excitation digital signal and a vibration digital signal and transmits the excitation digital signal and the vibration digital signal to the data processing, analyzing and storing device; and the data processing, analyzing and storing device processes and analyzes the excitation digital signal and the vibration digital signal to obtain a frequency response result of the test point.
2. The system for testing and analyzing dynamic characteristics of a numerical control machine according to claim 1, wherein the data processing, analyzing and storing device performs fast fourier transform on the excitation digital signal to obtain fourier transform X (j ω) of the excitation digital signal, performs fast fourier transform on the vibration digital signal to obtain fourier transform Y (j ω) of the vibration digital signal, and calculates a frequency response result of the test point according to a frequency response function H (j ω) of the excitation digital signal and the vibration digital signal, and wherein the data processing, analyzing and storing device calculates the frequency response result of the test point according to the frequency response function H (j ω) of the excitation digital signal and the vibration digital signal
Wherein the content of the first and second substances,
j is a unit of a plurality of numbers,
ω is the frequency.
3. The system for testing and analyzing the dynamic characteristics of the numerical control machine tool according to claim 2, wherein the data processing, analyzing and storing device comprises a processing and analyzing module and a storing module, and the processing and analyzing module is used for processing and analyzing the excitation digital signal and the vibration digital signal;
the storage module is electrically connected with the processing and analyzing module and is used for storing monitoring data and the frequency response result of the test point.
4. The system for testing and analyzing dynamic characteristics of a numerical control machine according to claim 3, wherein the data processing, analyzing and storing device further comprises a display module electrically connected with the storage module and used for displaying the monitoring data and the frequency response result.
5. The system for testing and analyzing dynamics of numerical control machine tool according to claim 4, wherein the data processing, analyzing and storing device is a PC or a workstation.
6. The system for testing and analyzing the dynamics of the numerical control machine tool according to any one of claims 1 to 4, wherein a force sensor is arranged in the excitation device, and the force sensor is electrically connected with the data acquisition device and is used for monitoring the excitation force of the excitation device and converting the excitation force into the excitation analog signal to be transmitted to the data acquisition device in real time.
7. The system for testing and analyzing dynamics of numerical control machine tools according to claim 6, wherein the excitation device is a force hammer or a vibration exciter.
8. The system for testing and analyzing the dynamic characteristics of the numerical control machine tool according to any one of claims 1 to 4, wherein a plurality of vibration sensors electrically connected with the data acquisition device are arranged in the sensing device, the vibration sensors are arranged at test points on the numerical control machine tool to be tested, and the test points are distributed on a main shaft, a clamping platform and a machine body of the numerical control machine tool to be tested.
9. The system for testing and analyzing dynamics of numerical control machine tools according to claim 8, wherein the vibration sensor is selected from an acceleration sensor, a velocity sensor or a displacement sensor.
10. The system for testing and analyzing dynamics of numerical control machine tools according to any one of claims 1 to 4, wherein the data acquisition device can be a data acquisition instrument.
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Application publication date: 20200828 |