阅读说明：本技术 数控机床远程监控装置 (Remote monitoring device of numerical control machine tool ) 是由 石佩斐 郭鹤 郑喜贵 蒋玲玲 张占领 于 2019-12-12 设计创作，主要内容包括：本发明公开了数控机床远程监控装置,包括波形检测模块、调理降噪模块和滤波发射模块,所述波形检测模块运用型号为AD 8313的检波器J1采集数控机床远程监控装置中工作时信号发射端的信号波形,所述调理降噪模块运用运放器AR1、运放器AR2和电容C2、电容C3组成调理电路增大信号开环增益,同时稳定信号静态工作点,并且运用三极管Q1检测运放器AR3、运放器AR6输出信号电位差,运放器AR4、运放器AR6输出信号最后输入运放器AR5、三极管Q2组成的降噪电路内,所述滤波发射模块运用电感L1和电容C4、电容C5组成滤波电路对信号滤波,通过信号发射器E1发送至数控机床远程监控终端内,能够对数控机床的远程监控载波信号监测,转换为远程监控终端的参考信号。(The invention discloses a remote monitoring device of a numerical control machine, which comprises a waveform detection module, a conditioning noise reduction module and a filtering emission module, wherein the waveform detection module collects the signal waveform of a signal emission end in the working process of the remote monitoring device of the numerical control machine by using a wave detector J1 with the model number of AD 8313, the conditioning noise reduction module uses a conditioning circuit consisting of an operational amplifier AR1, an operational amplifier AR2, a capacitor C2 and a capacitor C3 to increase the open loop gain of a signal and stabilize the static working point of the signal, a triode Q1 is used for detecting the potential difference of output signals of the operational amplifier AR3 and the operational amplifier AR6, the output signals of the operational amplifier AR4 and the operational amplifier AR6 are finally input into a noise reduction circuit consisting of the operational amplifier AR5 and the triode Q2, the filtering emission module uses a filter circuit consisting of an inductor L1, a capacitor C4 and a capacitor C5 to filter the signal and sends the filtered signal, the remote monitoring carrier signal of the numerical control machine tool can be monitored and converted into a reference signal of a remote monitoring terminal.)

1. The remote monitoring device of the numerical control machine tool comprises a waveform detection module, a conditioning noise reduction module and a filtering emission module, and is characterized in that the waveform detection module collects the signal waveform of a signal emission end when the signal emission end works in the remote monitoring device of the numerical control machine tool by using a wave detector J1 with the model number of AD 8313, the conditioning noise reduction module uses an operational amplifier AR1, an operational amplifier AR2, a capacitor C2 and a capacitor C3 to form a conditioning circuit to increase the open-loop gain of a signal and stabilize the static working point of the signal, simultaneously uses a diode D5 and a diode D6 to limit the amplitude of the signal, then inputs the signal into an inverse input end of an operational amplifier AR6 after buffering the signal by using an operational amplifier AR3, the operational amplifier AR6 compares the output signals of the operational amplifier AR2 and the operational amplifier AR3, and uses a triode Q1 to detect the output signal potential difference of the operational amplifier AR3 and the operational amplifier AR6, and finally the operational amplifier AR, signals output by the operational amplifier AR4 and the operational amplifier AR6 are finally input into a noise reduction circuit consisting of the operational amplifier AR5 and the triode Q2 to reduce noise of the signals, and the filtering and transmitting module filters the signals by using a filtering circuit consisting of an inductor L1, a capacitor C4 and a capacitor C5 and transmits the signals to a remote monitoring terminal of the numerical control machine through a signal transmitter E1;

the conditioning noise reduction module comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R5 and R6, one end of a capacitor C3, the anode of a diode D5, the cathode of a diode D6 and the non-inverting input end of the operational amplifier AR6, the inverting input end of the operational amplifier AR6 is connected with one end of the capacitor C6 and the one end of a resistor R6, the other end of the resistor R6 is connected with the other end of the capacitor C6, the output end of the operational amplifier AR6 is connected with the other end of the resistor R6 and the non-inverting input end of the operational amplifier AR6, the inverting input end of the resistor R6 is connected with one end of the resistor R6, the non-inverting input end of the other triode Q6 of the resistor R6 and the cathode of the operational amplifier AR6, and the non-inverting input end of the operational amplifier AR6 are connected with the non-inverting input end of the diode D6, the non-inverting input end of the operational amplifier, The anode of the diode D6, the inverting input end of the operational amplifier AR3 is connected to one end of the resistor R9, the other end of the resistor R9 is grounded, the base of the triode Q1 is connected to the output end of the operational amplifier AR6, the resistor R12, one end of the capacitor C7 and the non-inverting input end of the operational amplifier AR5, the other end of the resistor R12 is connected to the output end of the operational amplifier AR4, the non-inverting input end of the operational amplifier AR4 is connected to the emitter of the triode Q1, the inverting input end of the operational amplifier AR5 is connected to one end of the resistor R13 and the resistor R14, the other end of the resistor R13 is grounded, the other end of the resistor R14 is connected to the base of the triode Q2, the collector of the triode Q2 is connected to the output end of the operational amplifier AR5 and the other end of the capacitor C7.

2. An optical cable signal transmission system as claimed in claim 1, wherein the filtering transmitter module includes an inductor L1, one end of the inductor L1 is connected to a resistor R15, one end of a capacitor C4 and an output end of the operational amplifier AR5, the other end of the inductor L1 is connected to a resistor R16, one end of a capacitor C5, the other ends of the resistor R15, the capacitor C4 and the capacitor C5 are grounded, and the other end of the resistor R16 is connected to the signal transmitter E1.

3. An optical cable signal transmission system as claimed in claim 2, wherein the waveform detection module includes a detector J1 with model number AD 8313, a power supply terminal of the detector J1 is connected to +5V, a ground terminal of the detector J1 is grounded, an output terminal of the detector J1 is connected to one end of a resistor R1, the other end of the resistor R1 is connected to a negative electrode of a voltage regulator D1 and one end of a resistor R2, a positive electrode of the voltage regulator D1 is grounded, the other end of the resistor R2 is connected to one end of a resistor R3 and one end of a capacitor C1, the other end of the capacitor C1 is grounded, and the other end of the resistor R3 is connected to the other end of a capacitor C2.

Technical Field

The invention relates to the technical field of signal transmission, in particular to a remote monitoring device for a numerical control machine tool.

Background

At present, along with the continuous development of intelligent technology, the application method of electrical equipment has been changed greatly, and the digit control machine tool is the equipment that the mill is commonly used, and along with the improvement of technique, the digit control machine tool can remote monitoring and operation, however, be carrier transmission in the remote monitoring signal transmission of digit control machine tool, when instantaneous signal was too big, produced repetitive response in the signal, will cause the control receiving end card screen, can only close restart system, seriously influences digit control machine tool remote monitoring device's result of use.

Disclosure of Invention

In view of the above situation, an object of the present invention is to provide a remote monitoring device for a numerical control machine tool, which can monitor a remote monitoring carrier signal of the numerical control machine tool and convert the remote monitoring carrier signal into a reference signal of a remote monitoring terminal.

The technical scheme includes that the remote monitoring device of the numerical control machine tool comprises a waveform detection module, a conditioning noise reduction module and a filtering emission module, wherein the waveform detection module collects signal waveforms of a signal emission end in the remote monitoring device of the numerical control machine tool during working by using a wave detector J1 with the model number of AD 8313, the conditioning noise reduction module uses an operational amplifier AR1, an operational amplifier AR2, a capacitor C2 and a capacitor C3 to form a conditioning circuit to increase signal open-loop gain and stabilize a signal static working point, simultaneously uses a diode D5 and a diode D6 to limit the amplitude of signals, then inputs the signals into an inverse input end of an operational amplifier AR6 after buffering the signals by using an operational amplifier AR3, the operational amplifier AR6 compares output signals of the operational amplifier AR2 and the operational amplifier AR3, and uses a triode Q1 to detect signal potential differences output by the operational amplifier AR 38 and the operational amplifier AR6, and finally the operational amplifier AR4 compares the potential of a triode Q1 emission electrode and the output, signals output by the operational amplifier AR4 and the operational amplifier AR6 are finally input into a noise reduction circuit consisting of the operational amplifier AR5 and the triode Q2 to reduce noise of the signals, and the filtering and transmitting module forms a filtering circuit by using an inductor L1, a capacitor C4 and a capacitor C5 to filter the signals and transmits the signals to the remote monitoring terminal of the numerical control machine through a signal transmitter E1.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;

1. an operation amplifier AR1, an operation amplifier AR2, a capacitor C2 and a capacitor C3 are used to form a conditioning circuit to increase the open-loop gain of a signal, and at the same time, a static working point of the signal is stabilized, a resistor R5 and a resistor R6 are used to divide voltage to provide bias voltage for the operation amplifier AR1, the size of a resistor R4 can be properly adjusted according to the capacity of a capacitor C2, that is, the size of the open-loop gain of the operation amplifier AR1 is adjusted, the effect of AC bypass of the in-phase input end of the operation amplifier AR2 is realized by using the capacitor C3 and the resistor R6, the output signal ripple of the operation amplifier AR2 is reduced, and meanwhile, a diode D5 and a diode D6 are used to limit the signal amplitude to play a voltage dividing effect, and then the signal is input into the anti-phase input;

2. the operational amplifier AR4 compares the emitter potential of the triode Q1 with the output signal of the operational amplifier AR2, the operational amplifier AR4 and the operational amplifier AR6 compare the signals twice to ensure the accuracy of the signals, the operational amplifier AR4 and the output signal of the operational amplifier AR6 are finally input into a noise reduction circuit formed by the operational amplifier AR5 and the triode Q2 to reduce the noise of the signals and adjust the noise of the signals, further ensure the stability of the signals, a filter circuit formed by an inductor L1, a capacitor C4 and a capacitor C5 is used for filtering the signals, the signals are sent into a numerical control machine remote monitoring terminal through a signal transmitter E1, when the instantaneous signal at the signal transmitting end is too large, the waveform is abnormal, namely, the wave form signal is converted into a voltage signal abnormal by the wave form detector J1, the numerical control machine remote monitoring terminal receives the reference electric signal, the signal receiving value is automatically adjusted.

Drawings

Fig. 1 is a block diagram of waveform detection of a remote monitoring device of a numerically controlled machine tool according to the present invention.

Fig. 2 is a module diagram of conditioning and noise reduction of the remote monitoring device of the numerical control machine tool.

Fig. 3 is a block diagram of filtering emission of the remote monitoring device of the numerically controlled machine tool according to the present invention.

Detailed Description

The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.