CN111061222A - Ultrasonic composite electromachining process parameter detection system - Google Patents
Ultrasonic composite electromachining process parameter detection system Download PDFInfo
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- CN111061222A CN111061222A CN201911389357.2A CN201911389357A CN111061222A CN 111061222 A CN111061222 A CN 111061222A CN 201911389357 A CN201911389357 A CN 201911389357A CN 111061222 A CN111061222 A CN 111061222A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- 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
- G05B19/406—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 monitoring or safety
- G05B19/4065—Monitoring tool breakage, life or condition
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37616—Use same monitoring tools to monitor tool and workpiece
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Abstract
The invention provides a parameter detection system for an ultrasonic composite electromachining process, which comprises a measurement module, wherein the measurement module comprises a detection assembly and a main control unit, and the detection assembly is connected with the main control unit so as to analyze and process data information detected by the detection assembly through the main control unit; the main control module is connected with the measuring module so as to analyze the data transmitted by the measuring module through the main control module and perform data processing; and the control output module is connected with the main control module and comprises an optical coupling isolation unit and a communication processing unit so as to output a control instruction to the execution unit through the control output module to finish the output of the control instruction. By the technical scheme provided by the invention, the technical problem of poor reliability of the ultrasonic composite electromachining process parameter detection system in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of ultrasonic composite electromachining process detection, in particular to a parameter detection system for an ultrasonic composite electromachining process.
Background
At present, a real-time data detection processing system plays an important role in the ultrasonic composite electromachining process, and data real-time acquisition, storage and transmission are completed in the whole ultrasonic composite electromachining process. The development trend of miniaturization and high performance requires that the detection system comprehensively consider the aspects of miniaturization and reliability while meeting the requirement of real-time data processing. The real-time requirement data processing system can process the measured and collected measurement data in real time and output a control instruction to the execution unit at the fastest speed; miniaturization requires smaller mass and volume of the whole data processing system, and reliability requires strong adaptability of the data processing system to different environments, interference resistance and the like;
however, although the x 86-based data processing system is mature in technology, peripheral units need to be added and miniaturization modification is not easy; the ultrasonic composite electromachining process parameter detection system based on the 51 or 96 single-chip microcomputer does not support floating-point operation, and has poor operation precision and operation speed, so that the real-time requirement cannot be met.
Disclosure of Invention
The invention mainly aims to provide a parameter detection system for an ultrasonic composite electromachining process, which aims to solve the technical problem that the reliability of the parameter detection system for the ultrasonic composite electromachining process in the prior art is poor.
The invention provides a parameter detection system for an ultrasonic composite electromachining process, which comprises:
the measuring module comprises a detection assembly and a main control unit, and the detection assembly is connected with the main control unit so as to analyze and process data information detected by the detection assembly through the main control unit;
the main control module is connected with the measuring module so as to analyze the data transmitted by the measuring module and process the data, and a main control chip of the main control module is a DSP (digital signal processor) so as to realize a self-checking function and perform real-time adjustment through the unit;
the control output module is connected with the main control module, comprises an optical coupling isolation unit and a communication processing unit, reduces interference through the optical coupling isolation unit, improves precision, and outputs a control instruction to the execution unit through the control output module so as to complete control instruction output.
Further, the detection assembly includes: the voltage sensor, the current sensor, the temperature sensor and the displacement sensor are all connected with the main control unit and are arranged, and data detected by the voltage sensor, the current sensor, the temperature sensor and the displacement sensor are processed through the main control unit.
Further, the main control chip of the main control module is DSP 28335.
Further, the output pulse width of the trigger signal of the main control chip of the main control module is 500ms, and the output amplitude is 12V.
Further, the main control chip of the main control unit is STM32F 103.
Furthermore, the main control unit is provided with a plurality of interfaces so as to be connected with the measuring assembly through the plurality of interfaces.
Further, the measurement module further comprises a digital-to-analog conversion chip ADS 8345.
Further, the detection system further comprises: and the storage module adopts a three-star FLASH as a storage chip.
Further, the detection system further comprises: and the power supply module, the measurement module, the main control module and the control output module are all connected with the power supply module so as to provide power for the measurement module, the main control module and the control output module through the power supply module.
Further, the power supply module comprises a power supply unit and a voltage reduction unit, and the voltage reduction unit is connected with the power supply unit to reduce the voltage of the power supply unit through the voltage reduction unit.
Furthermore, the detection system further comprises a shell, the measuring module, the main control module, the control output module and the power supply module are all arranged in the shell, and the shell is filled with buffer materials in a sealing mode so as to buffer and protect the measuring module, the main control module, the control output module and the power supply module through the buffer materials.
Further, the shell is provided with a mounting hole so as to be connected with the to-be-mounted part through the mounting hole.
By applying the technical scheme of the invention, different sensor data sources are collected by the STM32 of the measurement module, the data are transmitted to the main control module by using RS232 data after being collected, and the main control module carries out error calculation on the data transmitted by the measurement module and finally outputs the data. The real-time transmission and the on-line detection of the measuring module and the control output module in the invention are matched to improve the reliability of measurement.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the attached figures:
FIG. 1 is a block diagram illustrating the components of an ultrasonic compound electromachining process parameter detection system according to the present invention;
FIG. 2 illustrates a partial circuit diagram of an exemplary master control processing unit of the ultrasonic compound electromachining process parameter detection system;
FIG. 3 illustrates an exemplary voltage step-down circuit of the ultrasonic compound electromachining process parameter detection system;
FIG. 4 shows a mechanical assembly diagram of the ultrasonic hybrid electromachining process parameter detection system;
FIG. 5 illustrates the workflow of the ultrasonic hybrid electro-machining process parameter detection system.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 4, an embodiment of the present invention provides a system for detecting parameters in an ultrasonic composite electromachining process, a block diagram of constituent units of which is shown in fig. 1, wherein the system mainly includes: the device comprises a measuring module, a main control module, a control output module and a power supply module. The measuring module measures dynamic data of the carrier in real time and transmits the data to the main control module, the main control module outputs a control instruction to the execution unit in real time through the control output module after completing data calculation through a data processing program, and the power supply module provides a reliable power supply for the whole ultrasonic composite electromachining process parameter detection system.
The measuring module comprises a detection assembly (measuring sensor): voltage sensors, current sensors, temperature sensors, displacement sensors, and the like. And after passing through the front-end signal processing circuit, the various sensors transmit data to a main control chip of the main control unit of the measuring module for data processing. In the invention, an STM32F103 chip is used as a main control CPU of a measurement module. It should be noted that the measurement unit in this design has a 16-bit digital-to-analog conversion chip with the model number of ADS8345, which can meet the requirement of high-precision signal processing. Meanwhile, the measuring unit is provided with different types of communication protocol interfaces, can be accessed to sensors of different models for real-time data processing, reserves an expansion interface, and is high in expandability.
The main control module is a key unit of the ultrasonic composite electromachining process parameter detection system, can quickly analyze data transmitted by the measurement unit, can send an analysis result to the control output unit in time, and meanwhile, can quickly and accurately make judgment and output instructions according to changed data processing of the received data of the control output unit. Comprehensively considering, the DSP28335 is used as a core chip of the main control module, a local design circuit is shown in fig. 2, and the DSP28335 is fully invoked through a reasonable circuit design, so as to process data fed back by the peripheral module in time and play a role of the main control center. Specifically, the circuit in fig. 2 enables the main control processing unit to detect the butt resistor, and the circuit can be easily adjusted according to the resistance range of the butt resistor; meanwhile, the main control processing unit can output two paths of pulse signals, the pulse width of the pulse signals is 500ms, the amplitude of the pulse signals is 12V, and special access signals can be triggered. According to the special use environment of the ultrasonic composite electromachining process parameter detection system, the main control processing unit has a self-checking function and can monitor the working state of the system and adjust the working state in real time; it should be noted that, in the absence of external devices, the real-time detection and storage requirements of the data of the detection system are considered, and the high-capacity samsung NAND FLASH is used as a storage chip to meet the requirements of the data storage of the system.
The control output module comprises an optical coupling isolation unit, a communication processing unit and the like. After the main control processing unit of the ultrasonic composite electromachining process parameter detection system completes data processing, the control output unit outputs a control instruction, and the detection system completes real-time control of the ultrasonic electromachining detection system.
The power supply unit provides a power supply for the ultrasonic composite electromachining process parameter detection system, two power supply modes of a lithium battery and an uninterruptible power supply can be met through circuit design, and the lithium battery and the uninterruptible power supply can supply power simultaneously. The power supply voltage value required by the measurement unit and the main control processing unit is 5V, a voltage stabilizing and filtering circuit is designed, wherein TPS54331D is used as a voltage reducing chip, a reliable and stable power supply is provided for a system, the influence of power supply on the system is reduced, the main voltage reducing circuit is shown in figure 3, the power supply circuit is optimally designed, the TPS54331D is used as a core component, and the stable and low-noise power supply is provided for a module through various filtering and noise reduction. Specifically, after a voltage of +/-15V is input, filtering is performed through capacitors C51 (10 uf) and C52 (0.01 uf), voltage reduction processing is performed through resistors R26 and R30 at an input end of a selected and designed TPS54331D and TPS54331D, an internal switch tube of a chip is controlled to be switched on and off, the output voltage is divided through resistors R28 and R29 to form negative feedback, the output voltage is processed again through an inductor L4 (3.3 UH) and filter capacitors C47, C48 and C49, corresponding rated values are matched and calculated, and the output voltage is stabilized at a target value. The system is provided with a reliable and stable power supply, and the influence of power supply on the system is reduced.
The designed ultrasonic composite electromachining process parameter detection system uses a shell to fix a measurement module, a master control module, a control output module and a power supply module, wherein all the modules are fixed and laminated through bolts. The shell material is made of a preferable damping material, and is externally provided with mounting and fixing holes, and the shell material can be mounted and fixed in the carrier according to the practical application. The diameter of the whole shell is smaller than 100mm, the height of the whole shell is smaller than 100mm, the inside of the whole shell is filled with a buffer material by using a vacuum potting technology so as to ensure the reliability of the system, and the method is shown in figure 4.
The designed ultrasonic composite electromachining process parameter detection system can be installed and fixed in a carrier, a power supply is activated at the starting moment, and the power supply is provided for the measurement unit, the main control processing unit and the control output unit through the power supply unit. The whole system starts to work, after the self-checking is passed, the main control processing unit processes the data transmitted by the measuring unit in real time, and sends a control signal through the control output unit by an internal algorithm to complete the output of a control instruction and complete the one-time complete working flow of the ultrasonic composite electromachining process parameter detection system, and the main flow is shown in fig. 5.
By adopting the technical scheme provided by the invention, the following technical effects can be realized: the ultrasonic composite electromachining process parameter detection system overcomes the defects of the existing ultrasonic composite electromachining process parameter detection system, can meet the requirements of miniaturization and real-time data processing, has the characteristics of small volume, light weight, strong reliability and rich interfaces, can meet the testing requirements of the ultrasonic composite electromachining process, and has practicability.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A kind of ultrasonic composite electromachining process parameter detection system, characterized by that, including:
the measurement module comprises a detection assembly and a main control unit, wherein the detection assembly is connected with the main control unit so as to analyze and process data information detected by the detection assembly through the main control unit;
the main control module is connected with the measuring module so as to analyze the data transmitted by the measuring module and process the data, and a main control chip of the main control module is a DSP chip;
the control output module is connected with the main control module, comprises an optical coupling isolation unit and a communication processing unit, reduces interference through the optical coupling isolation unit, improves precision, and outputs a control instruction to the execution unit through the control output module so as to complete control instruction output.
2. The ultrasonic compound electromachining process parameter detection system of claim 1, wherein the detection assembly comprises: voltage sensor, current sensor, temperature sensor and displacement sensor, voltage sensor current sensor temperature sensor with displacement sensor all with the main control unit is connected, in order to pass through the main control unit handles voltage sensor current sensor temperature sensor with the data that displacement sensor detected.
3. The ultrasonic composite electromachining process parameter detection system of claim 1, wherein the main control chip of the main control module is DSP 28335.
4. The ultrasonic composite electromachining process parameter detection system as claimed in claim 3, wherein the output pulse width of the trigger signal of the main control chip of the main control module is 500ms, and the output amplitude is 12V.
5. The ultrasonic composite electromachining process parameter detection system as claimed in claim 1, wherein a main control chip of a main control unit in the measurement module is STM32F 103.
6. The ultrasonic composite electromachining process parameter detection system of claim 1, wherein the measurement module further comprises a digital to analog conversion chip ADS 8345.
7. The ultrasonic composite electromachining process parameter detection system of claim 1, further comprising a storage module, wherein the storage module employs a samsung FLASH as a storage chip.
8. The ultrasonic compound electromachining process parameter detection system of claim 1, further comprising:
the power supply module is connected with the measurement module, the main control module and the control output module, so that power is supplied to the measurement module, the main control module and the control output module through the power supply module.
9. The ultrasonic composite electromachining process parameter detection system of claim 8, wherein the power supply module comprises a power supply unit and a voltage reduction unit, and the voltage reduction unit is connected with the power supply unit so as to perform voltage reduction processing on the power supply unit through the voltage reduction unit.
10. The ultrasonic composite electromachining process parameter detection system of claim 8, further comprising a housing, wherein the measurement module, the main control module, the control output module and the power supply module are disposed in the housing, and a buffer material is encapsulated in the housing to buffer and protect the measurement module, the main control module, the control output module and the power supply module through the buffer material.
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| CN201911389357.2A CN111061222A (en) | 2019-12-30 | 2019-12-30 | Ultrasonic composite electromachining process parameter detection system |
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| CN201911389357.2A CN111061222A (en) | 2019-12-30 | 2019-12-30 | Ultrasonic composite electromachining process parameter detection system |
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