CN217179794U - A spot welder temperature measuring device for cable manufacture - Google Patents
A spot welder temperature measuring device for cable manufacture Download PDFInfo
- Publication number
- CN217179794U CN217179794U CN202220689810.2U CN202220689810U CN217179794U CN 217179794 U CN217179794 U CN 217179794U CN 202220689810 U CN202220689810 U CN 202220689810U CN 217179794 U CN217179794 U CN 217179794U
- Authority
- CN
- China
- Prior art keywords
- resistor
- operational amplifier
- controller
- spot welder
- capacitor
- 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
- Arc Welding Control (AREA)
Abstract
The utility model discloses a spot welder temperature measuring device for cable manufacture, including temperature sensor and the control box that is used for measuring the cooling water temperature, set up signal processing module, controller and alarm in the control box, signal processing module includes preamplification scheduling circuit and filtering shaping circuit, and filtering shaping circuit's output is connected the temperature detection signal input of controller, the output of controller is connected the controller of alarm, the utility model discloses a set up signal processing module and take care of temperature sensor's detected signal, effectively avoid mechanical noise and amplify the interference influence detection signal processing precision and the stability that the noise produced, eliminate temperature monitoring deviation to guarantee the cooling water temperature measuring degree of accuracy, greatly promoted the welding quality of spot welder to the cable.
Description
Technical Field
The utility model relates to an electric welding control technology field especially relates to a spot welder temperature measuring device for cable manufacture.
Background
The cable is made by one or more mutual insulated conductor and outsourcing insulating protective layer, and is more troublesome during traditional technique welding cable to welding efficiency is low, and adopts the spot welder then can greatly promote welding efficiency, makes cable welding effect better. The spot welder compresses a workpiece through an electrode, feeds electricity to the workpiece through the electrode, heats the welded workpiece to a melting or plastic state by utilizing resistance heat generated when current flows through the workpiece to achieve the purpose of welding, and in order to keep long-time reliable work of the spot welder and obtain stable welding quality, the working temperature of the spot welder needs to be controlled within a normal range through cooling water, for example, the utility model patent with application number of 201620150504.6 and name of 'a spot welder cooling system', because a water temperature monitoring device is arranged, the temperature of the cooling water can be displayed in real time, and an alarm is given when the water temperature is too high, so that a worker can timely master the water temperature condition and control the water temperature; however, in the process of detecting the water temperature, the mechanical noise generated by water flow disturbance and the noise influence in the process of amplifying the temperature detection signal cause unstable output of the temperature detection signal, so that the deviation of water temperature monitoring occurs, and the welding quality is influenced.
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, an object of the present invention is to provide a temperature measuring device for a spot welding machine used in cable production.
The technical scheme for solving the problem is as follows: a spot welder temperature measuring device for cable manufacture, including temperature sensor and the control box that is used for measuring the cooling water temperature, set up signal processing module, controller and alarm in the control box, signal processing module includes preamplification conditioning circuit and filtering and shaping circuit, preamplification conditioning circuit's input is connected temperature sensor's signal output part, preamplification conditioning circuit's output is connected filtering and shaping circuit's input, filtering and shaping circuit's output is connected the temperature detection signal input of controller, the output of controller is connected the controller of alarm.
Preferably, the pre-amplification conditioning circuit comprises an operational amplifier AR1, an inverting input terminal of the operational amplifier AR1 is connected to one ends of a resistor R3 and a resistor R3, the other end of the resistor R1 is connected to one end of a resistor R2 and a signal output terminal of the temperature sensor, the other end of the resistor R3 is grounded, a non-inverting input terminal of the operational amplifier AR1 is connected to the other end of the resistor R2 and a drain of a MOS transistor Q1, an output terminal of the operational amplifier AR1 is connected to one end of an inductor L1 and a gate of a MOS transistor Q1, a source of the MOS transistor Q1 is grounded through a resistor R4, and the other end of the inductor L1 is grounded through a capacitor C1.
Preferably, the filter shaping circuit includes an operational amplifier AR2, an inverting input terminal of an operational amplifier AR2 is connected to one end of a resistor R5 and one end of a capacitor C3, the other end of a capacitor C3 is connected to one end of a resistor R6 and an output terminal of the operational amplifier AR2, the other ends of resistors R5 and R6 are connected to the other end of an inductor L1 and are grounded through a capacitor C2, a non-inverting input terminal of the operational amplifier AR2 is connected to one end of resistors R7 and R8 and a cathode of a zener diode D1, the other end of the resistor R7 is connected to a +5V power supply, an anode of a zener diode DZ1 and the other end of the resistor R8 are grounded in parallel, an output terminal of the operational amplifier AR2 is connected to one end of the capacitor C4, the cathode of the zener diode D2 and the controller, and one end of the capacitor C4 and an anode of the zener diode D2 are grounded in parallel.
Preferably, the controller is a PLC control module.
Through the technical scheme, the beneficial effects of the utility model are that: the utility model discloses a set up signal processing module and take care of temperature sensor's detected signal, effectively avoid the interference influence detection signal processing precision and the stability that mechanical noise and amplified noise produced, eliminate temperature monitoring deviation to guarantee the degree of accuracy of cooling water temperature measurement, greatly promoted the welding quality of spot welder to the cable.
Drawings
Fig. 1 is a schematic circuit diagram of the 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 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.
A spot welder temperature measuring device for cable manufacture, including temperature sensor and the control box that is used for measuring the cooling water temperature, set up signal processing module, controller and alarm in the control box, signal processing module includes preamplification conditioning circuit and filtering and shaping circuit, preamplification conditioning circuit's input is connected temperature sensor's signal output part, preamplification conditioning circuit's output is connected filtering and shaping circuit's input, filtering and shaping circuit's output is connected the temperature detection signal input of controller, the output of controller is connected the controller of alarm.
The pre-amplification conditioning circuit comprises an operational amplifier AR1, wherein the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3 and one end of a resistor R3, the other end of the resistor R1 is connected with one end of a resistor R2 and the signal output end of the temperature sensor, the other end of the resistor R3 is grounded, the non-inverting input end of the operational amplifier AR1 is connected with the other end of the resistor R2 and the drain electrode of a MOS transistor Q1, the output end of the operational amplifier AR1 is connected with one end of an inductor L1 and the grid electrode of a MOS transistor Q1, the source electrode of the MOS transistor Q1 is grounded through a resistor R4, and the other end of the inductor L1 is grounded through a capacitor C1.
The filter shaping circuit comprises an operational amplifier AR2, wherein the inverting input end of an operational amplifier AR2 is connected with one end of a resistor R5 and one end of a capacitor C3, the other end of a capacitor C3 is connected with one end of a resistor R6 and the output end of the operational amplifier AR2, the other ends of resistors R5 and R6 are connected with the other end of an inductor L1 and are grounded through a capacitor C2, the non-inverting input end of an operational amplifier AR2 is connected with one end of resistors R7 and R8 and the cathode of a voltage stabilizing diode D1, the other end of a resistor R7 is connected with a +5V power supply, the anode of a voltage stabilizing diode DZ1 and the other end of a resistor R8 are grounded in parallel, the output end of an operational amplifier AR2 is connected with one end of a capacitor C4, the cathode of a voltage stabilizing diode D2 and the controller, and the anode of a capacitor C4 and the anode of a voltage stabilizing diode D2 are grounded in parallel.
The utility model discloses a concrete theory of operation does: the temperature sensor detects the water temperature of cooling water, detection signals of the temperature sensor are sent into the signal processing module in an electric signal mode, firstly, an operational amplifier AR1 in the pre-amplification conditioning circuit strengthens the detection signals by using a differential amplification principle, common mode noise is eliminated, then the amplified signals are sent into an MOS tube Q1 for positive feedback regulation, the noise of the amplifier is reduced, the linearity of the output waveform of the detection signals is improved, an LC filter is used for low-pass filtering of the output signals of the operational amplifier AR1, and mechanical noise generated by water flow disturbance is effectively reduced.
In order to further improve the precision of the temperature detection signal, the low-pass filter principle is utilized in the filter shaping circuit to process the detection signal, wherein the resistors R5 and R6 and the capacitors C2 and C3 form a second-order RC low-pass filter network, and noise of the detection signal is suppressed under the drive of the operational amplifier AR2, so that external high-frequency noise intrusion is effectively avoided, and accurate and effective temperature detection is ensured; meanwhile, the resistors R7 and R8 form a reference voltage at the in-phase input end of the operational amplifier AR2 by using a resistor voltage division principle, the operational amplifier AR2 outputs a standard signal which can be identified by a controller by using a comparator principle, and finally, a detection signal is amplitude-stabilized by the capacitor C4 and the voltage stabilizing diode D2 and then is sent to the controller; when the intelligent water temperature sensor is used specifically, the controller selects a PLC control module, and an external A/D circuit of the PLC control module performs analog-to-digital conversion on a detection signal and then performs internal operation processing, so that real-time water temperature data of cooling water is obtained; when the real-time water temperature data exceeds a preset safety value, the controller drives the alarm to work to send out audible and visual alarm signals, and staff are informed of overhauling in time.
To sum up, the utility model discloses a set up signal processing module and take care of temperature sensor's detected signal, effectively avoid the interference influence detection signal processing precision and the stability that mechanical noise and amplified noise produced, eliminate temperature monitoring deviation to guarantee the cooling water temperature measuring degree of accuracy, greatly promoted the welding quality of spot welder to the cable.
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. A spot welder temperature measuring device for cable manufacture, including being used for measuring temperature sensor and the control box of cooling water temperature, its characterized in that: the temperature sensor is characterized in that a signal processing module, a controller and an alarm are arranged in the control box, the signal processing module comprises a pre-amplification conditioning circuit and a filtering and shaping circuit, the input end of the pre-amplification conditioning circuit is connected with the signal output end of the temperature sensor, the output end of the pre-amplification conditioning circuit is connected with the input end of the filtering and shaping circuit, the output end of the filtering and shaping circuit is connected with the temperature detection signal input end of the controller, and the output end of the controller is connected with the controller of the alarm.
2. A spot welder temperature measuring device for cable production according to claim 1, characterized in that: the pre-amplification conditioning circuit comprises an operational amplifier AR1, wherein the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3 and one end of a resistor R3, the other end of the resistor R1 is connected with one end of a resistor R2 and the signal output end of the temperature sensor, the other end of the resistor R3 is grounded, the non-inverting input end of the operational amplifier AR1 is connected with the other end of the resistor R2 and the drain electrode of a MOS transistor Q1, the output end of the operational amplifier AR1 is connected with one end of an inductor L1 and the grid electrode of a MOS transistor Q1, the source electrode of the MOS transistor Q1 is grounded through a resistor R4, and the other end of the inductor L1 is grounded through a capacitor C1.
3. A spot welder temperature measuring device for cable production according to claim 2, characterized in that: the filter shaping circuit comprises an operational amplifier AR2, wherein the inverting input end of an operational amplifier AR2 is connected with one end of a resistor R5 and one end of a capacitor C3, the other end of a capacitor C3 is connected with one end of a resistor R6 and the output end of the operational amplifier AR2, the other ends of resistors R5 and R6 are connected with the other end of an inductor L1 and are grounded through a capacitor C2, the non-inverting input end of an operational amplifier AR2 is connected with one end of resistors R7 and R8 and the cathode of a voltage stabilizing diode D1, the other end of a resistor R7 is connected with a +5V power supply, the anode of a voltage stabilizing diode DZ1 and the other end of a resistor R8 are grounded in parallel, the output end of an operational amplifier AR2 is connected with one end of a capacitor C4, the cathode of a voltage stabilizing diode D2 and the controller, and the anode of a capacitor C4 and the anode of a voltage stabilizing diode D2 are grounded in parallel.
4. A spot welder temperature measuring device for cable production according to claim 3, characterized in that: the controller adopts a PLC control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220689810.2U CN217179794U (en) | 2022-03-28 | 2022-03-28 | A spot welder temperature measuring device for cable manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220689810.2U CN217179794U (en) | 2022-03-28 | 2022-03-28 | A spot welder temperature measuring device for cable manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217179794U true CN217179794U (en) | 2022-08-12 |
Family
ID=82745538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220689810.2U Active CN217179794U (en) | 2022-03-28 | 2022-03-28 | A spot welder temperature measuring device for cable manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217179794U (en) |
-
2022
- 2022-03-28 CN CN202220689810.2U patent/CN217179794U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111678426B (en) | Building structure wireless monitoring system that meets an emergency based on thing networking | |
| CN209964021U (en) | Protection circuit for power amplifier during short-circuit protection test | |
| CN217179794U (en) | A spot welder temperature measuring device for cable manufacture | |
| CN211660942U (en) | Metal plate bending machining clamping pressure detection device | |
| CN211403222U (en) | Pouring production line heat treatment control system | |
| CN213052393U (en) | Cooling system of stamping die | |
| CN205484401U (en) | Low -cost speed measurement circuit of high accuracy for brush DC motor | |
| CN212779400U (en) | High-voltage external insertion type electrode fault protection device | |
| CN216448599U (en) | Temperature control device of aluminum bar heating furnace | |
| CN210400489U (en) | Electromagnetic flowmeter fault detection device | |
| CN211791444U (en) | Big data-based information acquisition system | |
| CN218577014U (en) | Control device of hot melting machine for producing filter | |
| CN212903783U (en) | Hydraulic electric control valve tightness detection device | |
| CN217442728U (en) | Temperature monitoring device for rare earth permanent magnet synchronous servo motor | |
| CN217980632U (en) | Sheet metal machining torsion detection device | |
| CN108879612B (en) | The motor radiating of pressing robot sets non-firm power and adjusts circuit | |
| CN209044395U (en) | A kind of blowing duct temperature control system | |
| CN210894600U (en) | Overvoltage protection and temperature real-time monitoring circuit of IGBT element | |
| CN210981168U (en) | Enameled wire thickness detection device | |
| CN212432410U (en) | Online installation detection device is pressed in area | |
| CN210893324U (en) | Underground pipeline water level detection system | |
| CN207282944U (en) | A kind of electric automatization monitoring alarm device | |
| CN217252805U (en) | Metal part casting temperature control system | |
| CN210178421U (en) | Intelligent tunnel construction safety early warning system | |
| CN217605962U (en) | Automobile parts produces switch board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |