CN115638975A - Dynamic performance acquisition and analysis system and method for high-speed spindle - Google Patents
Dynamic performance acquisition and analysis system and method for high-speed spindle Download PDFInfo
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Abstract
The invention discloses a dynamic performance acquisition and analysis system and a method for a high-speed spindle, which relate to the technical field of dynamic performance acquisition and analysis and solve the technical problem that the processes of static rotation and dynamic operation cannot be detected through data acquisition and analysis in the prior art; in the running and starting process of the analysis object, the process of converting the static state into the dynamic state is analyzed, and whether the process of converting the static state into the dynamic state of the analysis object is qualified or not is judged, so that the running and starting stability of the analysis object is ensured, meanwhile, whether the analysis object is abraded by equipment or not can be judged according to the running and starting condition, the performance monitoring accuracy of the analysis object is improved, and the analysis object is protected reasonably; and analyzing the dynamic operation of the analysis object, and judging whether the dynamic operation process of the analysis object is qualified or not, so that the operation state of the analysis object is monitored, and the working efficiency of the analysis object in the dynamic operation process is ensured.
Description
Technical Field
The invention relates to the technical field of dynamic performance acquisition and analysis, in particular to a dynamic performance acquisition and analysis system and method for a high-speed spindle.
Background
The high-speed electric main shaft is a new technology which integrates a machine tool main shaft and a main shaft motor into a whole and appears in the field of numerical control machine tools in recent years, a main transmission system of the high-speed numerical control machine tool cancels belt wheel transmission and gear transmission, the machine tool main shaft is directly driven by an internal motor, so that the length of a main transmission chain of the machine tool is shortened to zero, zero transmission of the machine tool is realized, and the main shaft part is relatively independent from the transmission system and the whole structure of the machine tool in a transmission structure form of combining the main shaft motor and the machine tool main shaft into a whole;
however, in the prior art, the process of performing static rotation and dynamic operation cannot be detected through data acquisition and analysis during the operation of the high-speed spindle, so that the operation efficiency of the high-speed spindle cannot be ensured;
in view of the above technical drawbacks, a solution is proposed.
Disclosure of Invention
The invention aims to solve the problems and provides a dynamic performance acquisition and analysis system and a method for a high-speed main shaft, which are used for acquiring and analyzing the performance of the high-speed main shaft and judging whether the performance of the high-speed main shaft is qualified or not, so that the accuracy of the dynamic analysis of the high-speed main shaft is improved, and the low efficiency of the dynamic performance acquisition and analysis caused by the deviation of the dynamic performance analysis due to the abnormality of the high-speed main shaft is prevented; and in the running and starting process of the analysis object, analyzing the process of converting the static state into the dynamic state, and judging whether the process of converting the static state into the dynamic state of the analysis object is qualified or not, thereby ensuring the stability of the running and starting of the analysis object.
The purpose of the invention can be realized by the following technical scheme:
a dynamic performance acquisition and analysis system for high-speed main shaft, including the server, the server communication is connected with:
the performance acquisition and analysis unit is used for performing performance acquisition and analysis on the high-speed spindle, marking the high-speed spindle as an analysis object, setting a mark i of the high-speed spindle as a natural number greater than 1, acquiring a performance acquisition and analysis coefficient of the analysis object in a historical operation time period, comparing the performance acquisition and analysis coefficient to generate a performance analysis qualified signal and a performance analysis unqualified signal, and sending the performance analysis qualified signal and the performance analysis unqualified signal to the server;
the state transition analysis unit is used for analyzing the process of converting the static state into the dynamic state in the running and starting process of the analysis object, executing the running instruction after the analysis object receives the running instruction, marking the interval duration between the receiving moment of the running instruction and the finishing moment of the running instruction as a starting running period, generating a starting efficiency abnormal signal, a starting risk signal and a state transition analysis qualified signal through analysis, and sending the signals to the server;
the dynamic operation analysis unit is used for analyzing the dynamic operation of the analysis object after the starting operation period of the analysis object is finished, marking the operation process of the analysis object as a dynamic operation process after the starting operation period of the analysis object is finished, analyzing the analysis object in the dynamic operation process, dividing the analysis object into k parts, wherein k is a natural number greater than 1, dividing the operation of the analysis object into an unbalanced response and a balanced response through analysis, analyzing according to the unbalanced response and the balanced response to generate a qualified dynamic operation signal and an unqualified dynamic operation signal, and sending the qualified dynamic operation signal and the unqualified dynamic operation signal to the server;
and the dynamic fault analysis unit is used for carrying out dynamic fault analysis on the analysis object, generating a dynamic fault high-risk signal and a dynamic fault low-risk signal through analysis, and sending the signals to the server.
As a preferred embodiment of the present invention, the operation process of the performance acquisition and analysis unit is as follows:
collecting accumulated working time when an analysis object is replaced in a historical operation time period and displacement of a working end corresponding to the analysis object under the action of unit radial force; collecting a critical speed of an analysis object in unstable rotation in a historical operation time period; acquiring a performance acquisition analysis coefficient of an analysis object in a historical operation time period through analysis;
comparing the performance acquisition analysis coefficient of the analysis object in the historical operation time period with a performance acquisition analysis coefficient threshold value: if the performance acquisition analysis coefficient of the analysis object in the historical operation time period exceeds the performance acquisition analysis coefficient threshold, generating a performance analysis qualified signal and sending the performance analysis qualified signal and the corresponding analysis object number to a server; and if the performance acquisition and analysis coefficient of the analysis object does not exceed the performance acquisition and analysis coefficient threshold value in the historical operation time period, judging that the performance acquisition and analysis of the analysis object is unqualified, generating a performance analysis unqualified signal and sending the performance analysis unqualified signal and the corresponding analysis object number to the server.
As a preferred embodiment of the present invention, the operation of the state transition analysis unit is as follows:
acquiring the reciprocating floating frequency of a speed value in the corresponding rotating speed increasing process of an analysis object in a starting running period and the maximum increasing speed difference value of adjacent time points in the starting running period, and respectively comparing the reciprocating floating frequency threshold value and the increasing speed difference value threshold value:
if the reciprocating floating frequency of the speed value exceeds the reciprocating floating frequency threshold value in the corresponding rotating speed increasing process of the analysis object in the starting operation period, judging that the starting operation efficiency of the analysis object is low, generating a starting efficiency abnormal signal and sending the starting efficiency abnormal signal to a server; if the maximum increasing speed difference value of the adjacent time points in the starting running period exceeds the increasing speed difference value threshold, judging that starting of an analysis object is not uniform in the starting running process, generating a starting risk signal and sending the starting risk signal to a server;
and if the reciprocating floating frequency of the speed value in the corresponding rotating speed increasing process of the analysis object in the starting running period does not exceed the reciprocating floating frequency threshold value, and the maximum increasing speed difference value of the adjacent time point in the starting running period does not exceed the increasing speed difference value threshold value, generating a state transition analysis qualified signal and sending the state transition analysis qualified signal to the server.
As a preferred embodiment of the present invention, the operation process of the dynamic operation analysis unit is as follows:
acquiring the execution time of each part after the analysis object receives the operation instruction in the dynamic operation process, if the time interval value corresponding to the execution time of the analysis object part exceeds the corresponding interval value threshold value, judging that the operation of the analysis object is an unbalanced response, and marking the execution time of the current operation instruction as the unbalanced response time; and if the time interval value corresponding to the execution time of the analysis target part does not exceed the corresponding interval value threshold, judging that the operation of the analysis target is a balance response, and marking the execution time of the current operation instruction as the balance response time.
As a preferred embodiment of the present invention, the maximum sustainable duration of the equilibrium response of the analysis object and the occurrence frequency increase rate of the corresponding imbalance response of the analysis object are collected and compared with the sustainable duration threshold and the frequency increase rate threshold, respectively:
if the maximum sustainable duration of the balanced response of the analysis object exceeds the sustainable duration threshold and the frequency increase speed of the unbalanced response of the corresponding analysis object does not exceed the frequency increase speed threshold, generating a dynamic operation qualified signal and sending the dynamic operation qualified signal to the server; and if the maximum sustainable duration of the balanced response of the analysis object does not exceed the sustainable duration threshold, or the frequency increase speed of the unbalanced response of the corresponding analysis object exceeds the frequency increase speed threshold, generating an unqualified dynamic operation signal and sending the unqualified dynamic operation signal to the server.
As a preferred embodiment of the present invention, the operation process of the dynamic fault analysis unit is as follows:
the method comprises the following steps of collecting the sustainable duration reduction speed of the corresponding unbalanced response of an analysis object in the dynamic operation process and the maximum floating span of a starting operation period of the analysis object in the starting operation process, and comparing the sustainable duration reduction speed with a reduction speed threshold and the maximum floating span with a floating span threshold respectively:
if the sustainable duration reduction speed of the corresponding unbalanced response of the analysis object in the dynamic operation process exceeds a reduction speed threshold value or the maximum floating span of the starting operation period of the analysis object in the starting operation process exceeds a floating span threshold value, generating a dynamic fault high-risk signal and sending the dynamic fault high-risk signal to a server;
and if the sustainable duration reduction speed of the corresponding unbalanced response of the analysis object in the dynamic operation process does not exceed the reduction speed threshold value and the maximum floating span of the starting operation period of the analysis object in the starting operation process does not exceed the floating span threshold value, generating a dynamic fault low-risk signal and sending the dynamic fault low-risk signal to the server.
The dynamic performance acquisition and analysis method for the high-speed spindle comprises the following specific steps:
step one, performance acquisition and analysis, namely marking a high-speed main shaft as an analysis object, acquiring a performance acquisition and analysis coefficient of the analysis object in a historical operation time period, and comparing and judging whether the performance of the analysis object is qualified or not according to the performance acquisition and analysis coefficient;
analyzing the state transition, namely analyzing a qualified analysis object, analyzing the process of converting the static state into the dynamic state of the qualified analysis object, executing an operation instruction after the analysis object receives the operation instruction, marking the interval time between the receiving time of the operation instruction and the completion time of the operation instruction as a starting operation period, and judging whether the state transition analysis in the starting operation period is qualified or not through analysis;
analyzing the dynamic operation, namely analyzing the dynamic operation of the analysis object after the starting operation period of the analysis object is finished, marking the operation process of the analysis object as the dynamic operation process after the starting operation period of the analysis object is finished, analyzing the analysis object in the dynamic operation process, and judging whether the dynamic operation process of the analysis object is qualified or not through analysis;
and step four, dynamic fault analysis, namely performing dynamic fault analysis on the analysis object, and judging the dynamic fault risk of the analysis through analysis.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the performance of the high-speed spindle is collected and analyzed, and whether the performance of the high-speed spindle is qualified or not is judged, so that the accuracy of dynamic analysis of the high-speed spindle is improved, and the low efficiency of dynamic performance collection and analysis caused by the deviation of the dynamic performance analysis due to the abnormality of the high-speed spindle is prevented; in the running and starting process of the analysis object, the process of converting the static state into the dynamic state is analyzed, and whether the process of converting the static state into the dynamic state of the analysis object is qualified or not is judged, so that the running and starting stability of the analysis object is ensured, meanwhile, whether the analysis object is worn by equipment or not can be judged according to the running and starting state, the performance monitoring accuracy of the analysis object is improved, and the analysis object is protected reasonably;
2. in the invention, the dynamic operation of the analysis object is analyzed, and whether the analysis object is qualified in the dynamic operation process is judged, so that the operation state of the analysis object is monitored, the working efficiency of the analysis object in the dynamic operation process is ensured, in addition, the dynamic operation of the analysis object can be monitored, and the timeliness of fault discovery of the analysis object is improved; the dynamic fault analysis is carried out on the analysis object, the risk that the analysis object fails in the dynamic operation process is judged, the prediction of the dynamic fault corresponding to the analysis object is improved, the influence caused by the dynamic fault is reduced to the minimum, and the operation efficiency of the analysis object is improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of a dynamic performance acquisition and analysis system and method for a high-speed spindle according to the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, the dynamic performance acquisition and analysis system for a high-speed spindle includes a server, the server is in communication connection with a performance acquisition and analysis unit, a dynamic operation analysis unit, a state transition analysis unit and a dynamic fault analysis unit, wherein the server is in bidirectional communication connection with the performance acquisition and analysis unit, the dynamic operation analysis unit, the state transition analysis unit and the dynamic fault analysis unit;
the server generates a performance acquisition analysis signal and sends the performance acquisition analysis signal to the performance acquisition analysis unit, and the performance acquisition analysis unit performs performance acquisition analysis on the high-speed spindle after receiving the performance acquisition analysis signal and judges whether the performance of the high-speed spindle is qualified or not, so that the accuracy of dynamic analysis of the high-speed spindle is improved, and the problem that the dynamic performance analysis is deviated due to the abnormality of the high-speed spindle and the efficiency of the dynamic performance acquisition analysis is low is prevented;
marking the high-speed spindle as an analysis object, setting a mark i of the high-speed spindle as a natural number larger than 1, and acquiring a historical operation time period of the analysis object by taking the current time of the system as a time cut-off point, wherein the time starting point of the historical operation time period is the maintenance cycle ending time corresponding to the analysis object and closest to the current system time; collecting the accumulated working time when the analysis object is replaced in the historical operation time period and the displacement of the working end corresponding to the analysis object under the action of the unit radial force, and respectively marking the accumulated working time when the analysis object is replaced in the historical operation time period and the displacement of the working end corresponding to the analysis object under the action of the unit radial force as SJi and WYi; collecting the critical speed of the analysis object in the historical operation time period when the rotation of the analysis object is unstable, and marking the critical speed of the analysis object in the historical operation time period when the rotation of the analysis object is unstable as SDi;
by the formula
Acquiring a performance acquisition analysis coefficient Xi of an analysis object in a historical operation time period, wherein a1, a2 and a3 are preset proportionality coefficients, a1 is greater than a2 and greater than a3 and greater than 0, and beta is an error correction factor and takes the value of 0.986;
comparing the performance acquisition analysis coefficient Xi of the analysis object in the historical operation time period with a performance acquisition analysis coefficient threshold value:
if the performance acquisition analysis coefficient Xi of the analysis object in the historical operation time period exceeds the performance acquisition analysis coefficient threshold, judging that the performance acquisition analysis of the analysis object is qualified, generating a performance analysis qualified signal and sending the performance analysis qualified signal and the corresponding analysis object number to a server;
if the performance acquisition and analysis coefficient Xi of the analysis object in the historical operation time period does not exceed the performance acquisition and analysis coefficient threshold, judging that the performance acquisition and analysis of the analysis object is unqualified, generating a performance analysis unqualified signal and sending the performance analysis unqualified signal and the corresponding analysis object number to a server; the server receives the unqualified performance analysis signal and the number of the corresponding analysis object, and maintains the corresponding analysis object;
after the qualified analysis object is put into use, the server generates a state transition analysis signal and sends the state transition analysis signal to a state transition analysis unit, and after the state transition analysis signal is received by the state transition analysis unit, the process of converting the static state of the analysis object into the dynamic state is analyzed in the running and starting process of the analysis object, and whether the analysis object is qualified in the process of converting the static state into the dynamic state is judged, so that the running and starting stability of the analysis object is ensured, and meanwhile, whether the analysis object is worn by equipment or not can be judged according to the running and starting state, the performance monitoring accuracy of the analysis object is improved, and the analysis object is protected reasonably;
the analysis object executes the operation instruction after receiving the operation instruction, and marks the interval duration of the receiving time of the operation instruction and the finishing time of the operation instruction as a starting operation period, wherein the finishing of the operation instruction can be expressed that the rotating speed of the main shaft reaches the instruction set rotating speed;
acquiring reciprocating floating frequency of a speed value in the increasing process of the corresponding rotating speed of the analysis object in the starting running period and the maximum increasing speed difference value of adjacent time points in the starting running period, and respectively comparing the reciprocating floating frequency of the speed value in the increasing process of the corresponding rotating speed of the analysis object in the starting running period and the maximum increasing speed difference value of the adjacent time points in the starting running period with a reciprocating floating frequency threshold value and an increasing speed difference value threshold value:
if the reciprocating floating frequency of the speed value exceeds the reciprocating floating frequency threshold value in the process of increasing the corresponding rotating speed of the analysis object in the starting operation period, judging that the starting operation efficiency of the analysis object is low, generating a starting efficiency abnormal signal and sending the starting efficiency abnormal signal to a server, and after receiving the starting efficiency abnormal signal, the server carries out equipment maintenance on the corresponding analysis object and simultaneously detects the electric quantity supply of equipment where the corresponding analysis object is located;
if the maximum increasing speed difference value of the adjacent time points in the starting running period exceeds the increasing speed difference value threshold, judging that the starting of the analysis object is not uniform in the starting running process, generating a starting risk signal and sending the starting risk signal to the server, and after receiving the starting risk signal, the server performs starting speed control on the corresponding analysis object, so that the speed increasing value of each time point in the starting running period is ensured to be in the corresponding threshold range, the speed increasing values of the adjacent time points are prevented from being too large, the efficiency of the starting running period is reduced while the equipment of the analysis object is influenced;
if the reciprocating floating frequency of the speed value in the corresponding rotating speed increasing process of the analysis object in the starting running period does not exceed the reciprocating floating frequency threshold value and the maximum increasing speed difference value of the adjacent time point in the starting running period does not exceed the increasing speed difference value threshold value, judging that the state transition analysis of the analysis object is qualified, generating a state transition analysis qualified signal and sending the state transition analysis qualified signal to the server;
after the server receives the state transition analysis qualified signal, a dynamic operation analysis signal is generated and sent to the dynamic operation analysis unit, after the dynamic operation analysis unit receives the dynamic operation analysis signal, after the starting operation period of the analysis object is finished, the dynamic operation of the analysis object is analyzed, whether the analysis object is qualified in the dynamic operation process is judged, so that the operation state of the analysis object is monitored, the working efficiency of the analysis object in the dynamic operation process is ensured, in addition, the dynamic operation of the analysis object can be monitored, and the timeliness of fault discovery of the analysis object is improved;
after the analysis object finishes a starting operation period, marking the operation process as a dynamic operation process, analyzing the analysis object in the dynamic operation process, dividing the analysis object into k parts, wherein k is a natural number greater than 1, acquiring the execution time of each part after the analysis object receives an operation instruction in the dynamic operation process, judging the operation of the analysis object as an unbalanced response if the corresponding time interval value of the execution time of the part of the analysis object exceeds the corresponding interval value threshold, and marking the execution time of the current operation instruction as an unbalanced response time; if the time interval value corresponding to the execution time of the analysis object part does not exceed the corresponding interval value threshold, judging that the operation of the analysis object is a balance response, and marking the execution time of the current operation instruction as a balance response time;
acquiring the maximum sustainable duration of the balanced response of the analysis object and the occurrence frequency increasing speed of the unbalanced response of the corresponding analysis object, and comparing the maximum sustainable duration of the balanced response of the analysis object and the occurrence frequency increasing speed of the unbalanced response of the corresponding analysis object with a sustainable duration threshold and a frequency increasing speed threshold respectively:
if the maximum sustainable duration of the balanced response of the analysis object exceeds the sustainable duration threshold and the frequency increase speed of the unbalanced response of the corresponding analysis object does not exceed the frequency increase speed threshold, judging that the dynamic operation analysis of the analysis object is qualified, generating a dynamic operation qualified signal and sending the dynamic operation qualified signal to the server;
if the maximum sustainable duration of the balanced response of the analysis object does not exceed the sustainable duration threshold or the frequency increase speed of the unbalanced response of the corresponding analysis object exceeds the frequency increase speed threshold, determining that the dynamic operation analysis of the analysis object is unqualified, generating a dynamic operation unqualified signal and sending the dynamic operation unqualified signal to the server;
after the server receives the unqualified dynamic operation signal, a dynamic fault analysis signal is generated and sent to the dynamic fault analysis unit, and after the dynamic fault analysis unit receives the dynamic fault analysis signal, the dynamic fault analysis unit performs dynamic fault analysis on an analysis object, judges the risk of the analysis object having a fault in the dynamic operation process, improves the prediction of the dynamic fault corresponding to the analysis object, is beneficial to minimizing the influence caused by the dynamic fault, and improves the operation efficiency of the analysis object;
acquiring the sustainable duration reduction speed of the unbalanced response corresponding to the analysis object in the dynamic operation process and the maximum floating span of the starting operation period when the analysis object starts to operate, and comparing the sustainable duration reduction speed of the unbalanced response corresponding to the analysis object in the dynamic operation process and the maximum floating span of the starting operation period when the analysis object starts to operate with a reduction speed threshold and a floating span threshold respectively:
if the sustainable duration reduction speed of the corresponding unbalanced response of the analysis object in the dynamic operation process exceeds a reduction speed threshold value, or the maximum floating span of the starting operation period of the analysis object in the starting operation process exceeds a floating span threshold value, judging that the analysis object is abnormal in dynamic fault analysis, generating a dynamic fault high-risk signal and sending the dynamic fault high-risk signal to a server; after the server receives the dynamic fault high-risk signal, the server maintains the corresponding analysis object, and controls the operation frequency of the analysis object to reduce the operation intensity of the analysis object;
if the sustainable duration reduction speed of the corresponding unbalanced response of the analysis object in the dynamic operation process does not exceed the reduction speed threshold value and the maximum floating span of the starting operation period of the analysis object in the starting operation process does not exceed the floating span threshold value, judging that the analysis object is normal in dynamic fault analysis, generating a dynamic fault low-risk signal and sending the dynamic fault low-risk signal to the server.
The dynamic performance acquisition and analysis method for the high-speed spindle comprises the following steps:
step one, performance acquisition and analysis, namely marking a high-speed spindle as an analysis object, setting a mark i of the analysis object, wherein the mark i is a natural number greater than 1, acquiring a performance acquisition and analysis coefficient of the analysis object in a historical operation time period, and comparing and judging whether the performance of the analysis object is qualified or not according to the performance acquisition and analysis coefficient;
analyzing the state transition, namely analyzing a qualified analysis object, analyzing the process of converting the static state into the dynamic state of the qualified analysis object, executing an operation instruction after the analysis object receives the operation instruction, marking the interval time between the receiving time of the operation instruction and the completion time of the operation instruction as a starting operation period, and judging whether the state transition analysis in the starting operation period is qualified or not through analysis;
analyzing the dynamic operation, namely analyzing the dynamic operation of the analysis object after the starting operation period of the analysis object is finished, marking the operation process of the analysis object as the dynamic operation process after the starting operation period of the analysis object is finished, analyzing the analysis object in the dynamic operation process, and judging whether the dynamic operation process of the analysis object is qualified or not through analysis;
and step four, dynamic fault analysis, namely performing dynamic fault analysis on the analysis object, and judging the dynamic fault risk of the analysis through analysis.
The formulas are obtained by acquiring a large amount of data and performing software simulation, and the coefficients in the formulas are set by the technicians in the field according to actual conditions;
when the performance acquisition and analysis system is used, the performance acquisition and analysis unit is used for performing performance acquisition and analysis on the high-speed spindle, the high-speed spindle is marked as an analysis object, the performance acquisition and analysis coefficient of the analysis object in a historical operation time period is obtained, a performance analysis qualified signal and a performance analysis unqualified signal are generated according to the comparison of the performance acquisition and analysis coefficient, and the performance acquisition and analysis qualified signal and the performance analysis unqualified signal are sent to a server; analyzing the process of converting the static state into the dynamic state of an analysis object in the running and starting process of the analysis object by a state transition analysis unit, executing an operation instruction after the analysis object receives the operation instruction, marking the interval duration between the receiving time of the operation instruction and the finishing time of the operation instruction as a starting operation period, generating a starting efficiency abnormal signal, a starting risk signal and a state transition analysis qualified signal through analysis, and sending the signals to a server; analyzing the dynamic operation of the analysis object after the starting operation period of the analysis object is finished through a dynamic operation analysis unit; and carrying out dynamic fault analysis on the analysis object through a dynamic fault analysis unit, generating a dynamic fault high-risk signal and a dynamic fault low-risk signal through analysis, and sending the signals to a server.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A dynamic performance acquisition and analysis system for high-speed main shaft, which is characterized in that, including the server, the server communication is connected with:
the performance acquisition and analysis unit is used for performing performance acquisition and analysis on the high-speed spindle, marking the high-speed spindle as an analysis object, setting a mark i of the high-speed spindle as a natural number greater than 1, acquiring a performance acquisition and analysis coefficient of the analysis object in a historical operation time period, comparing the performance acquisition and analysis coefficient to generate a performance analysis qualified signal and a performance analysis unqualified signal, and sending the performance analysis qualified signal and the performance analysis unqualified signal to the server;
the state transition analysis unit is used for analyzing the process of converting the static state into the dynamic state in the running and starting process of the analysis object, executing the running instruction after the analysis object receives the running instruction, marking the interval duration between the receiving moment of the running instruction and the finishing moment of the running instruction as a starting running period, generating a starting efficiency abnormal signal, a starting risk signal and a state transition analysis qualified signal through analysis, and sending the signals to the server;
the dynamic operation analysis unit is used for analyzing the dynamic operation of the analysis object after the starting operation period of the analysis object is finished, marking the operation process of the analysis object as a dynamic operation process after the starting operation period of the analysis object is finished, analyzing the analysis object in the dynamic operation process, dividing the analysis object into k parts, wherein k is a natural number greater than 1, dividing the operation of the analysis object into an unbalanced response and a balanced response through analysis, analyzing according to the unbalanced response and the balanced response to generate a qualified dynamic operation signal and an unqualified dynamic operation signal, and sending the qualified dynamic operation signal and the unqualified dynamic operation signal to the server;
and the dynamic fault analysis unit is used for carrying out dynamic fault analysis on the analysis object, generating a dynamic fault high-risk signal and a dynamic fault low-risk signal through analysis, and sending the signals to the server.
2. The dynamic performance acquisition and analysis system for the high-speed spindle according to claim 1, wherein the performance acquisition and analysis unit operates as follows:
collecting accumulated working time when an analysis object is replaced in a historical operation time period and displacement of a working end corresponding to the analysis object under the action of unit radial force; collecting a critical speed of an analysis object in unstable rotation in a historical operation time period; acquiring a performance acquisition analysis coefficient of an analysis object in a historical operation time period through analysis;
comparing the performance acquisition analysis coefficient of the analysis object in the historical operation time period with a performance acquisition analysis coefficient threshold value: if the performance acquisition and analysis coefficient of the analysis object in the historical operation time period exceeds the performance acquisition and analysis coefficient threshold value, generating a performance analysis qualified signal and sending the performance analysis qualified signal and the corresponding analysis object number to the server; and if the performance acquisition and analysis coefficient of the analysis object does not exceed the performance acquisition and analysis coefficient threshold value in the historical operation time period, judging that the performance acquisition and analysis of the analysis object is unqualified, generating a performance analysis unqualified signal and sending the performance analysis unqualified signal and the corresponding analysis object number to the server.
3. The dynamic performance collection and analysis system for the high-speed spindle according to claim 1, wherein the state transition analysis unit operates as follows:
acquiring the reciprocating floating frequency of a speed value in the corresponding rotating speed increasing process of an analysis object in a starting running period and the maximum increasing speed difference value of adjacent time points in the starting running period, and respectively comparing the reciprocating floating frequency threshold value and the increasing speed difference value threshold value:
if the reciprocating floating frequency of the speed value exceeds the reciprocating floating frequency threshold value in the corresponding rotating speed increasing process of the analysis object in the starting operation period, judging that the starting operation efficiency of the analysis object is low, generating a starting efficiency abnormal signal and sending the starting efficiency abnormal signal to a server; if the maximum increasing speed difference value of the adjacent time points in the starting running period exceeds the increasing speed difference value threshold, judging that starting of an analysis object is not uniform in the starting running process, generating a starting risk signal and sending the starting risk signal to a server;
and if the reciprocating floating frequency of the speed value in the corresponding rotating speed increasing process of the analysis object in the starting running period does not exceed the reciprocating floating frequency threshold value, and the maximum increasing speed difference value of the adjacent time point in the starting running period does not exceed the increasing speed difference value threshold value, generating a state transition analysis qualified signal and sending the state transition analysis qualified signal to the server.
4. The dynamic performance collection and analysis system for the high-speed spindle according to claim 1, wherein the dynamic operation analysis unit operates as follows:
acquiring the execution time of each part after the analysis object receives the operation instruction in the dynamic operation process, if the time interval value corresponding to the execution time of the analysis object part exceeds the corresponding interval value threshold value, judging that the operation of the analysis object is an unbalanced response, and marking the execution time of the current operation instruction as the unbalanced response time; and if the time interval value corresponding to the execution time of the analysis target part does not exceed the corresponding interval value threshold, judging that the operation of the analysis target is a balance response, and marking the execution time of the current operation instruction as the balance response time.
5. The dynamic performance collection and analysis system for the high-speed spindle according to claim 4, wherein a maximum sustainable duration of an analysis object balanced response and an occurrence frequency increase speed of a corresponding analysis object unbalanced response are collected and compared with a sustainable duration threshold and a frequency increase speed threshold, respectively:
if the maximum sustainable duration of the balanced response of the analysis object exceeds the sustainable duration threshold and the frequency increase speed of the unbalanced response of the corresponding analysis object does not exceed the frequency increase speed threshold, generating a dynamic operation qualified signal and sending the dynamic operation qualified signal to the server; and if the maximum sustainable duration of the balanced response of the analysis object does not exceed the sustainable duration threshold, or the frequency increase speed of the unbalanced response of the corresponding analysis object exceeds the frequency increase speed threshold, generating an unqualified dynamic operation signal and sending the unqualified dynamic operation signal to the server.
6. The dynamic performance collection and analysis system for the high-speed spindle according to claim 1, wherein the dynamic fault analysis unit operates as follows:
the method comprises the following steps of collecting the sustainable duration reduction speed of the corresponding unbalanced response of an analysis object in the dynamic operation process and the maximum floating span of a starting operation period of the analysis object in the starting operation process, and comparing the sustainable duration reduction speed with a reduction speed threshold and the maximum floating span with a floating span threshold respectively:
if the sustainable duration reduction speed of the corresponding unbalanced response of the analysis object in the dynamic operation process exceeds a reduction speed threshold value, or the maximum floating span of the starting operation period of the analysis object in the starting operation process exceeds a floating span threshold value, generating a dynamic fault high-risk signal and sending the dynamic fault high-risk signal to a server;
and if the sustainable duration reduction speed of the corresponding unbalanced response of the analysis object in the dynamic operation process does not exceed the reduction speed threshold value and the maximum floating span of the starting operation period of the analysis object in the starting operation process does not exceed the floating span threshold value, generating a dynamic fault low-risk signal and sending the dynamic fault low-risk signal to the server.
7. The dynamic performance acquisition and analysis method for the high-speed spindle is characterized by comprising the following steps:
step one, performance acquisition and analysis, namely marking a high-speed main shaft as an analysis object, acquiring a performance acquisition and analysis coefficient of the analysis object in a historical operation time period, and comparing and judging whether the performance of the analysis object is qualified or not according to the performance acquisition and analysis coefficient;
analyzing the state transition, namely analyzing a qualified analysis object, analyzing the process of converting the static state into the dynamic state of the qualified analysis object, executing an operation instruction after the analysis object receives the operation instruction, marking the interval time between the receiving time of the operation instruction and the completion time of the operation instruction as a starting operation period, and judging whether the state transition analysis in the starting operation period is qualified or not through analysis;
analyzing the dynamic operation, namely analyzing the dynamic operation of the analysis object after the starting operation period of the analysis object is finished, marking the operation process of the analysis object as the dynamic operation process after the starting operation period of the analysis object is finished, analyzing the analysis object in the dynamic operation process, and judging whether the dynamic operation process of the analysis object is qualified or not through analysis;
and step four, dynamic fault analysis, namely performing dynamic fault analysis on the analysis object, and judging the dynamic fault risk of the analysis through analysis.
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