CN113103067A - Cutter machining frequency monitoring system and detection method based on low-power-consumption design - Google Patents
Cutter machining frequency monitoring system and detection method based on low-power-consumption design Download PDFInfo
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- CN113103067A CN113103067A CN202110368837.1A CN202110368837A CN113103067A CN 113103067 A CN113103067 A CN 113103067A CN 202110368837 A CN202110368837 A CN 202110368837A CN 113103067 A CN113103067 A CN 113103067A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
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- Mechanical Engineering (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a cutter machining frequency monitoring system and a monitoring method based on low-power-consumption design, wherein the monitoring system and the monitoring method can monitor vibration information of a cutter in three axial directions in real time through a three-axis acceleration sensor, and then the machining frequency of the cutter is obtained by analyzing and calculating collected vibration signals and time domain information corresponding to the vibration signals; by combining the vibration information and the time domain information for simultaneous analysis, the accuracy of the monitoring result can be improved. In addition, the invention can effectively manage the processing operation efficiency of field workers and effectively supervise the quality of the cutter provided by a cutter production enterprise. In addition, the invention can reduce the volume of the storage battery and further reduce the volume of the whole monitoring module by enabling the three-axis acceleration sensor and the microprocessor to work in a low-power-consumption mode for a long time, so that the monitoring module can be installed on the cutter.
Description
Technical Field
The invention relates to a cutter machining frequency monitoring system and a cutter machining frequency detecting method based on low-power-consumption design.
Background
The monitoring of the state of the cutter of the numerical control machine is a key technology of an advanced manufacturing system and is an important link in the machining process. The effective numerical control machine tool cutter state monitoring system has important practical significance for improving production efficiency, reducing production cost, improving product quality and the like. Therefore, the research on monitoring the state of the cutter of the numerical control machine tool is particularly important.
The monitoring of the machining times of the cutter is an important link in the machining management process of automatic mechanical manufacturing, the machining times are monitored, the machining operation efficiency of field workers can be effectively managed, and the quality of the cutter provided by cutter production enterprises can be effectively monitored. However, the machining environment of the tool is harsh and variable, and the tool is in a state including: daily storage, transportation, feeding, tool changing, processing and the like. However, there is no related technology for automatically monitoring the machining times of the tool at present, and the current numerical control machining center does not provide a power supply for the tool, and meanwhile, the position where the tool body can be modified is limited, so that the installation position of a battery system is limited, and finally the energy of the whole system is limited. In summary, in the case of a complex processing environment, the real-time monitoring of the tool according to the conventional method is limited by the battery capacity, which is difficult to achieve.
Disclosure of Invention
The invention aims to provide a cutter machining frequency monitoring system and a cutter machining frequency detecting method based on low-power-consumption design, which can automatically monitor the cutter machining frequency.
In order to solve the technical problem, the invention provides a cutter processing frequency monitoring system based on low power consumption design, which comprises a measuring module, wherein the measuring module comprises a three-axis acceleration sensor and a microprocessor;
the three-axis acceleration sensor is used for acquiring vibration information of the cutter in real time;
the microprocessor is used for acquiring the cutter vibration information, and then calculating the machining times of the cutter by combining the real-time cutter vibration information and the time domain signal corresponding to the cutter vibration information according to the characteristics of the vibration signal during cutter machining.
Further, the microprocessor calculates the machining times of the tool by the following method:
when the microprocessor acquires a tool vibration information signal corresponding to the vibration signal characteristic during tool machining, timing is started, and the timing is stopped until the microprocessor acquires a tool vibration signal with a different vibration signal characteristic during machining;
then calculating whether the timing duration of the steps is matched with the processing time, if so, judging that one-time cutter processing is finished, and counting one time; if not, not counting;
and repeating the steps until the processing is finished.
Further, the monitoring system also comprises a lithium battery for supplying power to the measuring module.
Further, the three-axis acceleration sensor and the microprocessor work in a low power consumption mode;
initially, sampling a low-frequency signal by a triaxial acceleration sensor in a low-power-consumption state, generating an interrupt signal and awakening a microprocessor when the triaxial acceleration sensor acquires a tool vibration information signal corresponding to the vibration signal characteristic during tool machining, controlling the triaxial acceleration sensor to enter an interrupt mode by the awakened microprocessor, and then re-entering the low-power-consumption mode by the microprocessor and the triaxial acceleration sensor; and generating an interrupt signal again and awakening the microprocessor to stop timing until the triaxial acceleration sensor acquires a tool vibration signal with different characteristics from the vibration signal during machining.
Further, according to the corresponding time domain signals of different working conditions, the optimal characteristics which can be discretized are selected.
Further, the detection system also comprises a server in communication connection with the microprocessor, and an alarm unit and a display unit which are respectively connected with the server.
Further, the detection system also comprises a mobile terminal which is in communication connection with the server.
In addition, the invention also provides a cutter processing frequency monitoring method for monitoring the cutter processing frequency by utilizing the cutter processing frequency monitoring system designed based on low power consumption, and the monitoring method comprises the following steps:
s1: collecting cutter vibration information in real time;
s2: and acquiring the vibration information of the cutter, and then calculating the machining times of the cutter by combining the real-time cutter vibration information and the time domain signal corresponding to the cutter vibration information according to the characteristics of the vibration signal generated during the machining of the cutter.
Further, the step S2 specifically includes:
s21: when a tool vibration information signal corresponding to the vibration signal characteristic during tool machining is obtained, timing is started, and the timing is stopped until the microprocessor obtains a tool vibration signal with a different vibration signal characteristic during tool machining;
s22: then calculating whether the timing duration of the steps is matched with the processing time, if so, judging that one-time cutter processing is finished, and counting one time; if not, not counting;
s23: and repeating the steps until the processing is finished.
The invention has the beneficial effects that: vibration information of the cutter in three axial directions can be monitored in real time through the triaxial acceleration sensor, and then the machining times of the cutter are obtained through analyzing and calculating the collected vibration signals and time domain information corresponding to the vibration signals; by combining the vibration information and the time domain information for simultaneous analysis, the accuracy of the monitoring result can be improved. The system can also effectively manage the processing operation efficiency of field workers and effectively supervise the quality of the cutters provided by cutter manufacturing enterprises.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a block diagram of the present monitoring system;
Detailed Description
The monitoring system for the machining times of the cutter based on the low-power-consumption design shown in fig. 1 comprises a measuring module, wherein the measuring module comprises a three-axis acceleration sensor and a microprocessor;
the three-axis acceleration sensor is used for acquiring vibration information of the cutter in real time;
the microprocessor is used for acquiring the cutter vibration information, and then calculating the machining times of the cutter by combining the real-time cutter vibration information and the time domain signal corresponding to the cutter vibration information according to the characteristics of the vibration signal during cutter machining.
The vibration information of the cutter in three axial directions can be monitored in real time through the triaxial acceleration sensor, and then the processing times of the cutter can be obtained through analyzing and calculating the collected vibration signals and the time domain information corresponding to the vibration signals; by combining the vibration information and the time domain information for simultaneous analysis, the accuracy of the monitoring result can be improved.
According to an embodiment of the present application, the microprocessor calculates the number of times of machining the tool by specifically:
when the microprocessor acquires a tool vibration information signal corresponding to the vibration signal characteristic during tool machining, timing is started, and the timing is stopped until the microprocessor acquires a tool vibration signal with a different vibration signal characteristic during machining;
then calculating whether the timing duration of the steps is matched with the processing time, if so, judging that one-time cutter processing is finished, and counting one time; if not, not counting;
and repeating the steps until the processing is finished.
According to an embodiment of the present application, the monitoring system further includes a lithium battery for supplying power to the measurement module. The lithium battery is adopted for power supply, so that the monitoring coordination convenience can be improved.
According to one embodiment of the application, the three-axis acceleration sensor and the microprocessor operate in a low power consumption mode;
initially, sampling a low-frequency signal by a triaxial acceleration sensor in a low-power-consumption state, generating an interrupt signal and awakening a microprocessor when the triaxial acceleration sensor acquires a tool vibration information signal corresponding to the vibration signal characteristic during tool machining, controlling the triaxial acceleration sensor to enter an interrupt mode by the awakened microprocessor, and then re-entering the low-power-consumption mode by the microprocessor and the triaxial acceleration sensor; and generating an interrupt signal again and awakening the microprocessor to stop timing until the triaxial acceleration sensor acquires a tool vibration signal with different characteristics from the vibration signal generated during tool machining.
Through making triaxial acceleration sensor and microprocessor work under low-power consumption mode for a long time, can reduce the volume of battery for whole monitoring module removes shell thickness, and lithium cell and circuit board gross thickness can reach 13mm at minimum. The measuring module is suitable for a minimum diameter of 15mm and a minimum depth of 15 mm.
According to one embodiment of the application, the optimal characteristics which can be discretized are selected according to the corresponding time domain signals of different working conditions.
According to one embodiment of the application, the detection system further comprises a server in communication connection with the microprocessor, and an alarm unit and a display unit respectively connected with the server. A background cloud service program is arranged in the server, data are obtained by onenet pushing, and the server has the following functions: module information show, module processing number of times historical data show, module alarm information remind of going online. Wherein, the module information of going online includes: the production factory of the cutter installed on the module, the type of the cutter, the material of the cutter processing object, the processing rotating speed of the cutter, the processing feeding speed of the cutter, the station where the cutter is located and the like. Module alarm information reminds including: whether the monitoring module is in the appointed working area or not is reminded, and whether the cutter machining times are normally reminded or not is reminded.
According to one embodiment of the application, the detection system further comprises a mobile terminal in communication connection with the server. The mobile terminal can select computer equipment used in moving according to needs, such as a mobile phone, a notebook, a tablet computer, an intelligent bracelet and the like. The mobile terminal is internally provided with an APP, and the APP can provide an interaction channel for user data entry and information viewing. A person using the cutter inputs information of a manufacturer of the cutter installed on the module, the type of the cutter, the material of a cutter processing object, the processing rotating speed of the cutter, the processing feeding speed of the cutter, a station where the cutter is located and the like; and the manager can check the processing condition of the cutter at each station. In principle, all information of the server can be pushed to the APP.
According to one embodiment of the application, the microprocessor can adopt esp82xx series or CC32xx series with WIFI function, and can be conveniently transplanted to other microprocessors with RF function. The background cloud service program builds an equipment connection gateway based on the OneNet platform, builds a data processing cloud platform, and can be conveniently transplanted to other platforms such as the Alice cloud.
In addition, the invention also provides a cutter processing frequency monitoring method for monitoring the cutter processing frequency by utilizing the cutter processing frequency monitoring system designed based on low power consumption, and the monitoring method comprises the following steps:
s1: collecting cutter vibration information in real time;
s2: and acquiring the vibration information of the cutter, and then calculating the machining times of the cutter by combining the real-time cutter vibration information and the time domain signal corresponding to the cutter vibration information according to the characteristics of the vibration signal generated during the machining of the cutter.
According to an embodiment of the present application, the step S2 specifically includes:
s21: when a tool vibration information signal corresponding to the vibration signal characteristic during tool machining is obtained, timing is started, and the timing is stopped until the microprocessor obtains a tool vibration signal with a vibration signal characteristic different from that during machining;
s22: then calculating whether the timing duration of the steps is matched with the processing time, if so, judging that one-time cutter processing is finished, and counting one time; if not, not counting;
s23: and repeating the steps until the processing is finished.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A cutter machining frequency monitoring system based on low-power-consumption design is characterized by comprising a measuring module, wherein the measuring module comprises a three-axis acceleration sensor and a microprocessor;
the three-axis acceleration sensor is used for acquiring vibration information of the cutter in real time;
the microprocessor is used for acquiring the cutter vibration information, and then calculating the machining times of the cutter by combining the real-time cutter vibration information and the time domain signal corresponding to the cutter vibration information according to the characteristics of the vibration signal during cutter machining.
2. The system for monitoring the number of times of machining of the tool designed based on low power consumption of claim 1, wherein the microprocessor calculates the number of times of machining of the tool by a method comprising:
when the microprocessor acquires a tool vibration information signal corresponding to the vibration signal characteristic during tool machining, timing is started, and the timing is stopped until the microprocessor acquires a tool vibration signal with a different vibration signal characteristic during machining;
then calculating whether the timing duration of the steps is matched with the processing time, if so, judging that one-time cutter processing is finished, and counting one time; if not, not counting;
and repeating the steps until the processing is finished.
3. The system for monitoring the number of times of machining of the cutting tool designed based on low power consumption of claim 1, further comprising a lithium battery for supplying power to the measuring module.
4. The system for monitoring the number of times of tool machining based on low power consumption design of claim 3, wherein the three-axis acceleration sensor and the microprocessor operate in a low power consumption mode;
initially, sampling a low-frequency signal by a triaxial acceleration sensor in a low-power-consumption state, generating an interrupt signal and awakening a microprocessor when the triaxial acceleration sensor acquires a tool vibration information signal corresponding to the vibration signal characteristic during tool machining, controlling the triaxial acceleration sensor to enter an interrupt mode by the awakened microprocessor, and then re-entering the low-power-consumption mode by the microprocessor and the triaxial acceleration sensor; and generating an interrupt signal again and awakening the microprocessor to stop timing until the triaxial acceleration sensor acquires a tool vibration signal with different characteristics from the vibration signal during machining.
5. The system for monitoring the number of times of machining of the tool designed based on low power consumption according to claim 2 or 4, characterized in that the optimum characteristics that can be discretized are selected according to the corresponding time domain signals of different working conditions.
6. The system for monitoring the number of times of machining of the tool designed based on low power consumption of claim 1, further comprising a server in communication with the microprocessor, and an alarm unit and a display unit respectively connected to the server.
7. The system for monitoring the number of times of tool machining based on low power consumption design according to claim 6, characterized in that the detection system further comprises a mobile terminal in communication connection with the server.
8. A tool machining number monitoring method for monitoring the number of times of machining of a tool using the tool machining number monitoring system designed based on low power consumption according to claims 1 to 7, comprising the steps of:
s1: collecting cutter vibration information in real time;
s2: and acquiring the vibration information of the cutter, and then calculating the machining times of the cutter by combining the real-time cutter vibration information and the time domain signal corresponding to the cutter vibration information according to the characteristics of the vibration signal generated during the machining of the cutter.
9. The system for monitoring the number of times of machining of the cutting tool designed based on low power consumption of claim 8, wherein the step S2 specifically includes:
s21: when a tool vibration information signal corresponding to the vibration signal characteristic during tool machining is obtained, timing is started, and the timing is stopped until the microprocessor obtains a tool vibration signal with a different vibration signal characteristic during tool machining;
s22: then calculating whether the timing duration of the steps is matched with the processing time, if so, judging that one-time cutter processing is finished, and counting one time; if not, not counting;
s23: and repeating the steps until the processing is finished.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113570254A (en) * | 2021-07-30 | 2021-10-29 | 江苏西格数据科技有限公司 | Industrial data quality analysis method |
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