CN210232620U - Pneumatic early warning device of roller super smart machine - Google Patents
Pneumatic early warning device of roller super smart machine Download PDFInfo
- Publication number
- CN210232620U CN210232620U CN201921035924.XU CN201921035924U CN210232620U CN 210232620 U CN210232620 U CN 210232620U CN 201921035924 U CN201921035924 U CN 201921035924U CN 210232620 U CN210232620 U CN 210232620U
- Authority
- CN
- China
- Prior art keywords
- resistor
- operational amplifier
- controller
- pneumatic
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a pneumatic early warning device of roller super smart machine, including pressure sensor and controller, still include pressure signal processing module and alarm module, pressure signal processing module is including the detection signal amplifier circuit that connects gradually, protection voltage stabilizing circuit and isolation output circuit, and the output of isolation output circuit is connected to the input of controller, and alarm module's control end is connected to the output of controller, the utility model discloses when pneumatic processing trachea internal pressure takes place to vibrate, can effectively filter and stabilize the detection signal, avoid frequently vibrating and cause the interference to pressure detection's stability, make and detect more accurately, improve device life, in time send early warning signal when the pneumatic processing middle air pressure is too high or low excessively simultaneously, guarantee roller processingquality.
Description
Technical Field
The utility model relates to a super smart quick-witted technical field of roller especially relates to a super smart quick-witted pneumatic early warning device of roller.
Background
The roller superfinishing machine is widely applied to the industries of bearings, automobiles, motorcycles, oil pump oil nozzles, hydraulic parts and the like, and is particularly suitable for superfinishing cylindrical and tapered rollers. When a superfinishing machine is used for carrying out pneumatic processing on a roller, the phenomenon that air drill processing is excessive or weak due to unstable air source and overhigh or overlow air pressure often occurs, so that the processed and formed roller is unstable in convexity, inconsistent in shape and unqualified in quality is caused, and therefore the pneumatic processing machine is especially important for monitoring and early warning of the air pressure during processing. The super smart machine need constantly repeat the process of starting, stopping when pneumatic processing, and the air drill can cause trachea internal pressure to vibrate in the twinkling of an eye that switches operating condition, and the atmospheric pressure change can not influence roller processingquality in the twinkling of an eye, but frequent vibration can cause the interference to pressure measurement's stability, also can produce clutter signal among the detection circuitry, so can seriously influence the device life-span for a long time.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, the present invention provides a pneumatic early warning device for a roller super-finishing machine.
The technical scheme for solving the problem is as follows: a pneumatic early warning device of a roller superfinishing machine comprises a pressure sensor, a controller, a pressure signal processing module and an alarm module, wherein the pressure signal processing module comprises a detection signal amplifying circuit, a protection voltage stabilizing circuit and an isolation output circuit which are sequentially connected; the detection signal amplifying circuit comprises a resistor R1, one end of a resistor R1 is connected with the output end of the pressure sensor, the other end of the resistor R1 is connected with the grid of an MOS tube Q1 and is grounded through a capacitor C1, the drain of the MOS tube Q1 is connected with a +5V power supply, the source of the MOS tube Q1 is connected with one ends of a resistor R2 and a capacitor C2, the other end of a resistor R2 is grounded, the other end of the capacitor C2 is connected with the non-inverting input end of an operational amplifier U1 and one end of a resistor R3, the other end of a resistor R3 is grounded, the inverting input end of the operational amplifier U1 is grounded through a resistor R4, and the output end of an operational amplifier U1 is connected with the inverting input end of the operational amplifier U1 through; the input end of the controller is connected with the output end of the isolation output circuit, and the output end of the controller is connected with the control end of the alarm module.
Further, the protection voltage stabilizing circuit comprises diodes VD1 and VD2, the anode of the diode VD1 and the cathode of the diode VD2 are connected with the output end of the operational amplifier U1, one end of a capacitor C4 and the cathode of a voltage stabilizing diode DZ1, the cathode of the diode VD1 is connected with a +5V power supply, and the anode of the diode VD2, the anode of the voltage stabilizing diode DZ1 and the other end of the capacitor C4 are grounded in parallel.
Further, the isolation output circuit comprises an operational amplifier U2, a non-inverting input terminal of the operational amplifier U2 is connected to a cathode of the zener diode DZ1, an inverting input terminal of the operational amplifier U2 is connected to one end of a resistor R6 and one end of a capacitor C5, an output terminal of the operational amplifier U2 is connected to the other end of the capacitor C5 and one end of the resistor R7, and the other ends of the resistors R6 and R7 are connected to an input terminal of the controller and grounded through a resistor R8.
Furthermore, the alarm module comprises a buzzer and a warning lamp which are arranged in parallel, and the power supply control ends of the buzzer and the warning lamp are connected with the output end of the controller.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses when pneumatic processing trachea internal pressure takes place to vibrate, can effectively filter and stabilize the detected signal, avoid frequent vibration to cause the interference to the stability of pressure detection, make the detection more accurate, improve device life, send early warning signal in time when the air pressure is too high or low excessively in the pneumatic processing simultaneously, guarantee roller processingquality;
2. the pressure sensor J1 detects the air pressure of an air source in real time during pneumatic processing, a detection signal amplifying circuit amplifies an output signal of the pressure sensor J1, RC low-pass filtering is used for reducing high-frequency clutter interference caused by oscillation of the internal pressure of an air pipe, the signal is improved through an MOS pipe Q1 and then sent to the operational amplifier U1 for proportional amplification, a resistor R5 and a capacitor C3 play a role in closed-loop feedback compensation in the amplification process of the operational amplifier U1, and the stability of the output signal of the operational amplifier U1 is ensured;
3. the protection voltage stabilizing circuit clamps an output signal of the operational amplifier U1 in a range of 0-5V by using a clamping circuit principle to output, so that an amplitude signal exceeding +5V is effectively prevented from flowing to a post-stage circuit, and a controller is well protected; the operational amplifier U2 in the isolation output circuit has the effect of isolating the output, so that the signals received by the controller are isolated from the preceding circuit, and the interference of the preceding circuit to the controller is prevented.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the pressure sensor and the pressure signal processing module of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects 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 1 to 2. 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 pneumatic early warning device comprises a pressure sensor J1, a controller, a pressure signal processing module and an alarm module, wherein the pressure signal processing module comprises a detection signal amplifying circuit, a protection voltage stabilizing circuit and an isolation output circuit which are sequentially connected, the input end of the controller is connected with the output end of the isolation output circuit, and the output end of the controller is connected with the control end of the alarm module. The pressure sensor J1 is used for detecting the air pressure of the air source during pneumatic processing, and converts the air pressure into an electric signal which is in direct proportion to the air pressure and outputs the electric signal to the pressure signal processing module for processing, and the controller judges whether the air pressure of the air source meets the pneumatic processing standard according to the signal value transmitted by the pressure signal processing module, and then controls the alarm module to work. When the alarm device is specifically arranged, the alarm module comprises a buzzer and a warning lamp which are arranged in parallel, and the power supply control ends of the buzzer and the warning lamp are connected with the output end of the controller.
Since the output signal of the pressure sensor J1 is weak, the detection signal needs to be amplified to match the amplitude level of the signal received by the controller. The detection signal amplifying circuit comprises a resistor R1, one end of a resistor R1 is connected with the output end of a pressure sensor J1, the other end of the resistor R1 is connected with the grid of a MOS tube Q1 and is grounded through a capacitor C1, the drain of the MOS tube Q1 is connected with a +5V power supply, the source of the MOS tube Q1 is connected with one end of a resistor R2 and one end of a capacitor C2, the other end of the resistor R2 is grounded, the other end of the capacitor C2 is connected with the non-inverting input end of an operational amplifier U1 and one end of a resistor R3, the other end of the resistor R3 is grounded, the inverting input end of the operational amplifier U1 is grounded through a resistor R4, and the output end of the operational amplifier U1 is connected with the inverting input end of the operational amplifier. The resistor R1 and the capacitor C1 form an RC filter to perform low-pass filtering on an output signal of the pressure sensor J1, high-frequency clutter interference caused by oscillation of pressure inside a trachea is reduced, then the MOS tube Q1 outputs the RC-filtered signal by utilizing good temperature characteristics of the MOS tube Q1, the output signal of the MOS tube Q1 is sent into the operational amplifier U1 to be amplified in proportion, the resistor R5 and the capacitor C3 play a role in closed-loop feedback compensation in the amplification process of the operational amplifier U1, and the stability of the output signal of the operational amplifier U1 is ensured.
In order to avoid the air pressure oscillation damaging the detection circuit, the protection voltage stabilizing circuit is designed to process an output signal of the operational amplifier U1. The protection voltage stabilizing circuit comprises diodes VD1 and VD2, wherein the anode of the diode VD1 and the cathode of the diode VD2 are connected with the output end of an operational amplifier U1, one end of a capacitor C4 and the cathode of a voltage stabilizing diode DZ1, the cathode of the diode VD1 is connected with a +5V power supply, and the anode of the diode VD2, the anode of the voltage stabilizing diode DZ1 and the other end of the capacitor C4 are grounded in parallel. The +5V power supply and the diodes VD1 and VD2 form a diode clamping circuit, an output signal of the operational amplifier U1 is clamped in the range of 0-5V to be output by utilizing the clamping circuit principle, when the pressure sensor J1 detects that the air pressure is too high, an abnormal signal with a large amplitude value is output, and the signal is amplified by the operational amplifier U1 and then exceeds the signal receiving amplitude range of the controller, so that the clamping circuit can effectively prevent the amplitude value signal exceeding +5V from flowing to a rear-stage circuit, and the controller is well protected. The capacitor C4 and the voltage stabilizing diode DZ1 respectively play a role in filtering and stabilizing the clamped secondary signal, so that stable output of the signal is ensured.
The isolation output circuit comprises an operational amplifier U2, wherein the non-inverting input end of the operational amplifier U2 is connected with the cathode of a voltage stabilizing diode DZ1, the inverting input end of the operational amplifier U2 is connected with one end of a resistor R6 and one end of a capacitor C5, the output end of the operational amplifier U2 is connected with the other end of the capacitor C5 and one end of the resistor R7, and the other ends of a resistor R6 and a resistor R7 are connected with the input end of a controller and are grounded through a resistor R8. The operational amplifier U2 has the effect of isolating the output, so that the signals received by the controller are isolated from the preceding circuit, and the interference of the preceding circuit to the controller is prevented.
The utility model discloses when specifically using, air supply atmospheric pressure during pneumatic processing of pressure sensor J1 real-time detection, detect signal amplification circuit and amplify the processing to pressure sensor J1's output signal, utilize RC low pass filtering to reduce tracheal internal pressure and take place to vibrate the high frequency clutter interference that arouses, then send into after MOS pipe Q1 signal improves and carry out the proportion amplification in putting ware U1, resistance R5, electric capacity C3 puts the effect that closed loop feedback compensation got up in ware U1 amplification process in fortune, guarantee to put the stability of ware U1 output signal in fortune. The protection voltage stabilizing circuit clamps an output signal of the operational amplifier U1 in a range of 0-5V by using a clamping circuit principle to output, so that an amplitude signal exceeding +5V is effectively prevented from flowing to a post-stage circuit, and a good protection effect is achieved on a controller. The operational amplifier U2 in the isolation output circuit has the effect of isolating the output, so that the signals received by the controller are isolated from the preceding circuit, and the interference of the preceding circuit to the controller is prevented. When the controller receives the output signal of the isolation output circuit, the controller compares the signal potential value with an internal set range value, wherein the set range value corresponds to the pneumatic machining air pressure allowable range value. For example, within the allowable range of pneumatic processing air pressure, the corresponding signal potential range output by the detection signal of the pressure sensor J1 to the controller after passing through the pressure signal processing module is 2-2.5V, and the internal set range value of the controller is also 2-2.5V. When the received signal potential value of the controller exceeds the internal set range value, the controller sends a control signal to enable the power supply control ends of the buzzer and the warning lamp to be conducted, so that the buzzer and the warning lamp are powered on to send an audible and visual alarm signal, and maintenance personnel are informed of overhauling the pneumatic device in time.
To sum up, the utility model discloses when pneumatic processing trachea internal pressure takes place to vibrate, can effectively carry out filtering and stability to the detected signal, avoid frequently vibrating and cause the interference to pressure measurement's stability, make to detect more accurate, improve device life, in time send early warning signal when pneumatic processing middle air pressure is too high or low excessively simultaneously, guarantee roller processingquality.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (4)
1. The utility model provides a pneumatic early warning device of roller super smart machine, includes pressure sensor and controller, its characterized in that: the pressure signal processing module comprises a detection signal amplifying circuit, a protection voltage stabilizing circuit and an isolation output circuit which are sequentially connected; the detection signal amplifying circuit comprises a resistor R1, one end of a resistor R1 is connected with the output end of the pressure sensor, the other end of the resistor R1 is connected with the grid of an MOS tube Q1 and is grounded through a capacitor C1, the drain of the MOS tube Q1 is connected with a +5V power supply, the source of the MOS tube Q1 is connected with one ends of a resistor R2 and a capacitor C2, the other end of a resistor R2 is grounded, the other end of the capacitor C2 is connected with the non-inverting input end of an operational amplifier U1 and one end of a resistor R3, the other end of a resistor R3 is grounded, the inverting input end of the operational amplifier U1 is grounded through a resistor R4, and the output end of an operational amplifier U1 is connected with the inverting input end of the operational amplifier U1 through; the input end of the controller is connected with the output end of the isolation output circuit, and the output end of the controller is connected with the control end of the alarm module.
2. The pneumatic early warning device of the roller superfinishing machine of claim 1, wherein: the protection voltage stabilizing circuit comprises diodes VD1 and VD2, wherein the anode of the diode VD1 and the cathode of the diode VD2 are connected with the output end of an operational amplifier U1, one end of a capacitor C4 and the cathode of a voltage stabilizing diode DZ1, the cathode of the diode VD1 is connected with a +5V power supply, and the anode of the diode VD2, the anode of the voltage stabilizing diode DZ1 and the other end of the capacitor C4 are grounded in parallel.
3. The pneumatic early warning device of the roller superfinishing machine of claim 2, wherein: the isolation output circuit comprises an operational amplifier U2, wherein the non-inverting input end of the operational amplifier U2 is connected with the cathode of a voltage stabilizing diode DZ1, the inverting input end of the operational amplifier U2 is connected with one end of a resistor R6 and one end of a capacitor C5, the output end of the operational amplifier U2 is connected with the other end of the capacitor C5 and one end of the resistor R7, and the other ends of the resistors R6 and R7 are connected with the input end of a controller and are grounded through a resistor R8.
4. The pneumatic early warning device of the roller superfinishing machine of claim 3, wherein: the alarm module comprises a buzzer and a warning lamp which are arranged in parallel, and the power supply control ends of the buzzer and the warning lamp are connected with the output end of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921035924.XU CN210232620U (en) | 2019-07-04 | 2019-07-04 | Pneumatic early warning device of roller super smart machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921035924.XU CN210232620U (en) | 2019-07-04 | 2019-07-04 | Pneumatic early warning device of roller super smart machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210232620U true CN210232620U (en) | 2020-04-03 |
Family
ID=69989643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921035924.XU Active CN210232620U (en) | 2019-07-04 | 2019-07-04 | Pneumatic early warning device of roller super smart machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210232620U (en) |
-
2019
- 2019-07-04 CN CN201921035924.XU patent/CN210232620U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201548520U (en) | Metal magnetic memory diagnostic apparatus | |
| CN212058990U (en) | Surface water quality treatment monitoring system | |
| CN210232620U (en) | Pneumatic early warning device of roller super smart machine | |
| CN210014645U (en) | Automatic drying device of chopsticks production line | |
| CN210515623U (en) | Alarm device for VSD negative pressure drainage | |
| CN211123797U (en) | Fertilizer raw materials dissolution temperature control system | |
| CN210217789U (en) | Underground concentrated solution hydraulic monitoring system | |
| CN210221794U (en) | Concentration dilution concentration detection device for hydraulic support | |
| CN210604504U (en) | Online quality detection device for steel wire rope production | |
| CN210400489U (en) | Electromagnetic flowmeter fault detection device | |
| CN214743180U (en) | Crane fault monitoring and alarming system | |
| CN210232621U (en) | Pneumatic drill fault shutdown system of tapered roller convexity superfinishing machine | |
| CN209687841U (en) | A kind of hydraulic safe early warning system | |
| CN204903334U (en) | Fluid characteristic sensor module | |
| CN205299095U (en) | Pressure transmitter | |
| CN205620064U (en) | Belt tension tester | |
| CN210244594U (en) | Steam blanching machine air pressure early warning device | |
| CN112748180A (en) | Pantograph detection device for high-speed rail vehicle | |
| CN210893324U (en) | Underground pipeline water level detection system | |
| CN210438777U (en) | Air cooling treatment device for wear-resistant alloy steel lining plate | |
| CN209894726U (en) | Mobile phone display screen detection device | |
| CN209842008U (en) | Quick positioner of electric control circuit fault judgement | |
| CN107179151A (en) | Belt tension tester | |
| CN219284586U (en) | Industrial gas leakage alarm device | |
| CN211878471U (en) | Animal remedy production steam monitored control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220829 Address after: 2nd Floor, East Building, No. 7 Park, New Energy Industry Cluster District, Kuqiao Township, Fangcheng County, Nanyang City, Henan Province, 473000 Patentee after: Henan Chengjia Bearing Technology Co.,Ltd. Address before: 473200 new energy industrial cluster area in Fangcheng County, Nanyang, Henan Patentee before: Henan Zhongtai Bearing Co.,Ltd. |
|
| TR01 | Transfer of patent right |