CN216792731U - Fault alarm device for machining tool - Google Patents
Fault alarm device for machining tool Download PDFInfo
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- CN216792731U CN216792731U CN202220500480.8U CN202220500480U CN216792731U CN 216792731 U CN216792731 U CN 216792731U CN 202220500480 U CN202220500480 U CN 202220500480U CN 216792731 U CN216792731 U CN 216792731U
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Abstract
The utility model discloses a fault alarm device of a processing machine tool, which comprises an operation controller and a fault early warning unit, wherein the operation controller is used for collecting and analyzing processing parameters of the machine tool and sending an early warning command signal when the parameters are abnormal, and the fault early warning unit comprises an amplification regulating circuit, a band-pass filter circuit and a tuning transmitting circuit which are sequentially connected; utilize wireless transmission technology to realize the long-range early warning of trouble, the main control room acquires concrete fault information after receiving early warning command signal and demodulating the signal to in time make backstage early warning deployment, inform the site personnel to look over and overhaul, greatly promoted fault handling efficiency, guarantee the reliability of machine tool operation.
Description
Technical Field
The utility model belongs to the technical field of machine tool machining equipment, and particularly relates to a fault alarm device of a machining tool.
Background
The machine tool is a working master machine manufactured by a machine, a fault alarm device is required to be installed on the machine tool once the machine tool fails in the running process due to large volume, an operator can be reminded to stop operating the machine tool in time and maintain the machine tool when the machine tool fails, an audible and visual alarm is usually directly installed on the machine tool in the conventional machine tool, and the phenomenon of untimely fault treatment often occurs when the machine tool fails to perform field early warning; some advanced machine tools have also adopted remote early warning device, send fault information to the main control room through wireless transmission, and when adopting remote transmission, because machine tool power frequency interference and surrounding electromagnetic interference influence, can mix a large amount of harmful clutter in the early warning command signal usually, lead to the main control room can't accurately discern the early warning instruction content, cause early warning inefficacy or wrong report, seriously influence the reliability of machine tool operation.
The present invention provides a new solution to this problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the present invention provides a fault alarm device for a processing machine tool to overcome the drawbacks of the prior art.
The technical scheme for solving the problem is as follows: the utility model provides a machine tool fault alarm device, includes operation controller and trouble early warning unit, the operation controller is used for gathering the analysis to the processing parameter of lathe to send out early warning command signal when the parameter appears unusually, the trouble early warning unit is including the amplifier adjusting circuit, band-pass filter circuit and the harmonious transmitting circuit that connect gradually, amplifier adjusting circuit's input is connected the early warning command signal output part of operation controller, the output of harmonious transmitting circuit is provided with wireless transmitter, remote communication is established with the master control room to wireless transmitter.
Preferably, the amplifying and adjusting circuit comprises an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected to the early warning command signal output terminal of the operation controller through a capacitor C1 and is grounded through a resistor R1, an inverting input terminal of the operational amplifier AR1 is connected to one end of a resistor R2 and a capacitor C2 and is grounded through a rheostat RP1, the other end of the resistor R2 is connected to one end of a resistor R3 and an anode of a diode VD1, and the other ends of the resistor R3 and the capacitor C2 and a cathode of the diode VD1 are connected to an output terminal of the operational amplifier AR 1.
Preferably, the band-pass filter circuit includes a capacitor C3, one end of the capacitor C3 is connected to the output end of the operational amplifier AR1, the other end of the capacitor C3 is connected to one end of a resistor R4 and a capacitor C4, the other end of the resistor R4 is connected to the inverting input end and the output end of the operational amplifier AR2, and the other end of the capacitor C4 is connected to the non-inverting input end of the operational amplifier AR2 and is grounded through a resistor R5.
Preferably, the tuned transmitting circuit comprises a MOS transistor Q1 and a transistor VT1, a gate of the MOS transistor Q1 is connected to a collector of the transistor VT1, and is connected to an output terminal of the operational amplifier AR2 through a parallel inductor L1 and a capacitor C5, an emitter of the transistor VT1 is grounded, a base of the transistor VT1 is connected to a source of the MOS transistor Q1 through a resistor R6, a drain of the MOS transistor Q1 is connected to a +12V power supply, and a source of the MOS transistor Q1 is further connected to the wireless signal transmitter through a capacitor C6.
Through the technical scheme, the utility model has the beneficial effects that:
1. according to the utility model, the fault early warning unit is arranged to condition the early warning command signal, and the frequency selection is carried out on the early warning command signal by utilizing the second-order RC band-pass filtering principle, so that the power frequency and high-frequency electromagnetic interference are avoided, and the transmission precision of the early warning command signal is greatly improved;
2. utilize wireless transmission technology to realize the long-range early warning of trouble, the main control room acquires concrete fault information after receiving early warning command signal and demodulating the signal to in time make backstage early warning deployment, inform the site personnel to look over and overhaul, greatly promoted fault handling efficiency, guarantee the reliability of machine tool operation.
Drawings
Fig. 1 is a schematic circuit diagram of a fault warning unit according to the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides a machine tool fault alarm device, includes operation controller and trouble early warning unit, and operation controller is used for gathering the analysis to the processing parameter of lathe to send early warning command signal down when the parameter is unusual, the trouble early warning unit is including the enlarged regulating circuit, band-pass filter circuit and the harmonious transmitting circuit that connect gradually, enlarged regulating circuit's input is connected the early warning command signal output part of operation controller, the output of harmonious transmitting circuit is provided with wireless transmitter E1, remote communication is established with the main control room to wireless transmitter E1.
As shown in fig. 1, the amplification regulating circuit includes an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected to the early warning command signal output terminal of the operation controller through a capacitor C1 and is grounded through a resistor R1, an inverting input terminal of the operational amplifier AR1 is connected to one end of a resistor R2 and one end of a capacitor C2 and is grounded through a rheostat RP1, the other end of the resistor R2 is connected to one end of a resistor R3 and an anode of a diode VD1, and the other ends of the resistor R3 and the capacitor C2 and a cathode of the diode VD1 are connected to an output terminal of the operational amplifier AR 1.
The band-pass filter circuit comprises a capacitor C3, one end of a capacitor C3 is connected with the output end of the operational amplifier AR1, the other end of the capacitor C3 is connected with one end of a resistor R4 and one end of a capacitor C4, the other end of the resistor R4 is connected with the inverting input end and the output end of the operational amplifier AR2, and the other end of the capacitor C4 is connected with the non-inverting input end of the operational amplifier AR2 and is grounded through a resistor R5.
The tuning transmitting circuit comprises a MOS tube Q1 and a triode VT1, wherein the grid electrode of the MOS tube Q1 is connected with the collector electrode of the triode VT1 and is connected with the output end of the operational amplifier AR2 through an inductor L1 and a capacitor C5 which are connected in parallel, the emitter electrode of the triode VT1 is grounded, the base electrode of the triode VT1 is connected with the source electrode of the MOS tube Q1 through a resistor R6, the drain electrode of the MOS tube Q1 is connected with a +12V power supply, and the source electrode of the MOS tube Q1 is also connected with the wireless signal transmitter E1 through a capacitor C6.
The specific working process and principle of the utility model are as follows: the operation controller of the processing machine tool carries out early warning when processing parameters are abnormal, the controller edits early warning data and carries out carrier wave to form an early warning instruction signal, and in order to ensure effective transmission of the early warning instruction, a fault early warning unit is adopted to condition the early warning instruction signal; firstly, the amplification regulating circuit performs enhancement processing on the early warning instruction signal, the capacitor C1 couples the early warning instruction signal and then sends the early warning instruction signal to the operational amplifier AR1 for amplification, and the capacitor C2 plays a role in signal compensation in the operational amplifier process, so that the stability of instruction transmission is ensured; meanwhile, resistors R2 and R3 which are connected in series are arranged to serve as amplifying resistors, and diodes VD1 are connected in parallel at two ends of the resistor R3 to play a role in amplifying and limiting, so that over-discharge is avoided, and a certain protection effect is achieved on a system. Then, the band-pass filter circuit utilizes second order RC band-pass filter principle to carry out the frequency selection to the early warning command signal, and band-pass filter central frequency is unanimous with the carrier frequency promptly to effectively filter other frequency band clutter, avoid power frequency and high frequency electromagnetic interference, greatly promote early warning command signal transmission precision. Further, a composite power amplification tube consisting of an MOS tube Q1 and a triode VT1 in the tuned transmitting circuit amplifies the power of the early warning instruction signal so as to meet the requirement of wireless transmitting power; the inductor L1 and the capacitor C5 form LC parallel resonance in the power amplification process, so that the early warning instruction signal generates characteristic transmitting frequency, and then the characteristic transmitting frequency is coupled by the capacitor C6 and then is transmitted to the wireless signal transmitter E1 for remote transmission.
The main control room acquires specific fault information after receiving the early warning instruction signal of the wireless signal transmitter E1 and demodulating the signal, and timely makes background early warning deployment to inform field personnel to check and overhaul, thereby greatly improving the fault processing efficiency and ensuring the operation reliability of the processing machine tool.
While the utility model has been described in further detail with reference to specific embodiments thereof, it is not intended that the utility model be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related arts, the extension, operation method, and data replacement shall fall within the scope of the present invention based on the technical idea of the present invention.
Claims (4)
1. The utility model provides a machine tool fault alarm device, includes operation controller and trouble early warning unit, its characterized in that: the operation controller is used for collecting and analyzing the machining parameters of the machine tool and sending out early warning command signals when the parameters are abnormal, the fault early warning unit comprises an amplification regulating circuit, a band-pass filter circuit and a tuning transmitting circuit which are sequentially connected, the input end of the amplification regulating circuit is connected with the early warning command signal output end of the operation controller, the output end of the tuning transmitting circuit is provided with a wireless signal transmitter, and the wireless signal transmitter and a master control room are in remote communication.
2. Machine tool malfunction warning device according to claim 1, characterized in that: the amplifying and adjusting circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with the early warning instruction signal output end of the operational controller through a capacitor C1 and is grounded through a resistor R1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R2 and one end of a capacitor C2 and is grounded through a rheostat RP1, the other end of the resistor R2 is connected with one end of a resistor R3 and the anode of a diode VD1, and the other ends of the resistor R3 and the capacitor C2 and the cathode of the diode VD1 are connected with the output end of the operational amplifier AR 1.
3. A machine tool malfunction alerting device in accordance with claim 2, wherein: the band-pass filter circuit comprises a capacitor C3, one end of a capacitor C3 is connected with the output end of an operational amplifier AR1, the other end of the capacitor C3 is connected with one end of a resistor R4 and one end of a capacitor C4, the other end of the resistor R4 is connected with the inverting input end and the output end of an operational amplifier AR2, and the other end of the capacitor C4 is connected with the non-inverting input end of an operational amplifier AR2 and is grounded through a resistor R5.
4. A machine tool malfunction alerting device in accordance with claim 3, wherein: the tuning transmitting circuit comprises a MOS tube Q1 and a triode VT1, wherein the grid electrode of the MOS tube Q1 is connected with the collector electrode of the triode VT1 and is connected with the output end of the operational amplifier AR2 through an inductor L1 and a capacitor C5 which are connected in parallel, the emitter electrode of the triode VT1 is grounded, the base electrode of the triode VT1 is connected with the source electrode of the MOS tube Q1 through a resistor R6, the drain electrode of the MOS tube Q1 is connected with a +12V power supply, and the source electrode of the MOS tube Q1 is also connected with the wireless signal transmitter through a capacitor C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500480.8U CN216792731U (en) | 2022-03-09 | 2022-03-09 | Fault alarm device for machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500480.8U CN216792731U (en) | 2022-03-09 | 2022-03-09 | Fault alarm device for machining tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216792731U true CN216792731U (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220500480.8U Active CN216792731U (en) | 2022-03-09 | 2022-03-09 | Fault alarm device for machining tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216792731U (en) |
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2022
- 2022-03-09 CN CN202220500480.8U patent/CN216792731U/en active Active
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