CN215468708U - Arc anomaly detection device in welding process - Google Patents
Arc anomaly detection device in welding process Download PDFInfo
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- CN215468708U CN215468708U CN202121614007.4U CN202121614007U CN215468708U CN 215468708 U CN215468708 U CN 215468708U CN 202121614007 U CN202121614007 U CN 202121614007U CN 215468708 U CN215468708 U CN 215468708U
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Abstract
The device for detecting the arc abnormity in the welding process comprises a welding assembly, a detection control assembly and an upper computer, wherein the welding assembly comprises a welding gun, a wire feeding mechanism, a welding power supply and a movement mechanism which are connected with a welding wire through a welding cable, and the detection control assembly comprises a controller, a current-voltage acquisition card and an analog input unit; the voltage acquisition end of the current-voltage acquisition card is connected with the positive electrode and the negative electrode of the welding power supply to acquire actual welding voltage, and a current transformer is arranged on a positive electrode cable of the welding power supply and is connected with the current acquisition end of the current-voltage acquisition card through a control cable; the current and voltage acquisition card is connected with the analog input unit through a control cable, the analog input unit is connected with the controller through the control cable, the controller is connected with an upper computer through a communication line, a timer and an audible and visual alarm are connected to the upper computer, and the controller is connected with the motion mechanism through a driver and the control cable.
Description
The technical field is as follows:
the utility model relates to an arc abnormity detection device in a welding process.
Background art:
welding, also known as fusion welding, is a manufacturing process and technique for joining metals or other thermoplastic materials, such as plastics, by means of heat, high temperature or high pressure.
The energy sources for modern welding are many, including gas flame, electric arc, laser, electron beam, friction, and ultrasonic, among others; in addition to use in a factory, welding can be performed in a variety of environments, such as the field, underwater, and space; wherever welding can be dangerous for the operator, appropriate precautions must be taken while welding is being performed.
At present, consumable electrode arc welding is a relatively common welding form, in the practical application process, the consumable electrode arc welding often because welding parameter sets up incorrectly, the welding machine is unusual, wire feeder is unusual, the arc-closing is unusual, the abnormal factor such as molten bath protection appears and glues the silk phenomenon, especially in automatic welding process, most of automatic welding equipment can't perceive it when this kind of condition appears, moving mechanism can continue to walk along the welding direction, appear very easily and draw the welder to bend or even damage and lead to the welding seam to appear the quality problem, greatly reduced welded production efficiency and stability.
The utility model has the following contents:
the embodiment of the utility model provides an arc abnormity detection device in a welding process, which has reasonable structural design, can detect welding current and welding voltage in real time by matching with various types of electric elements based on the integrated control function of a controller, then processes the data to judge whether an arc abnormity state occurs, and can respond to sound and light alarm information at the first time and stop the operation action of a movement mechanism when the arc abnormity state occurs, so that protection is provided for welding equipment, manual operation is reduced, the intelligence level of the welding process is improved, and the problems in the prior art are solved.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the device for detecting the arc abnormity in the welding process comprises a welding assembly, a detection control assembly and an upper computer, wherein the welding assembly comprises a welding gun, a wire feeding mechanism, a welding power supply and a movement mechanism which are connected with a welding wire through a welding cable, and the detection control assembly comprises a controller, a current-voltage acquisition card and an analog input unit; the voltage acquisition end of the current-voltage acquisition card is connected with the positive electrode and the negative electrode of the welding power supply to acquire actual welding voltage, and a current transformer is arranged on a positive electrode cable of the welding power supply and is connected with the current acquisition end of the current-voltage acquisition card through a control cable; the electric arc welding system comprises a current and voltage acquisition card, an analog quantity input unit, a controller, a timer and an audible and visual alarm, wherein the current and voltage acquisition card is connected with the analog quantity input unit through a control cable, the analog quantity input unit is connected with the controller through the control cable so as to transmit acquired welding voltage and welding current to the controller in real time for processing, the controller is connected with an upper computer through a communication line, the upper computer is connected with the timer and the audible and visual alarm, the timer is used for recording time nodes corresponding to the acquired welding voltage and welding current, and the audible and visual alarm is used for sending audible and visual alarm information when an electric arc abnormal state occurs; the controller is connected with the movement mechanism through a driver and a control cable.
And the current voltage acquisition card is also provided with an analog output pin and is connected with the analog input unit through the analog output pin and the control cable.
The analog input unit is provided with 10 pins and is connected with the current-voltage acquisition card through AI0, AI1 and AGND pins.
The driver is in a ULN2003 model, 16 pins are arranged on the driver, the driver is connected with the controller through a first pin, a third electromagnetic relay is arranged on a sixteenth pin of the driver, a first diode and a fifth resistor are connected in parallel on the third electromagnetic relay, and a motion mechanism interface is further arranged on the third electromagnetic relay to control the starting and stopping of the motion mechanism.
The audible and visual alarm comprises a first electromagnetic relay and a second electromagnetic relay which are connected with an upper computer in parallel, an indicating lamp is arranged on the first electromagnetic relay, and a loudspeaker is arranged on the second electromagnetic relay.
The type of the timer is DS1302, 8 pins are arranged on the timer, a fourth resistor and a fourth capacitor which are connected in parallel are arranged between a pin six and a pin seven of the timer, and the pin seven of the timer is connected with an upper computer.
By adopting the structure, a plurality of components in the welding assembly are connected into a whole through the welding cable and the welding wire, so that data acquisition and analysis are facilitated; the welding current and the welding voltage are detected by matching a current voltage acquisition card with a current transformer and are simultaneously transmitted into a controller through an analog input unit; recording corresponding detection time nodes through a timer and an audible and visual alarm connected with an upper computer, and sending audible and visual alarm information when the electric arc is in an abnormal state; the motion mechanism is controlled to start and stop by matching the controller and the driver, the driver can quickly transmit the command of the controller to the motion mechanism, the response speed is high, and the device has the advantages of safety, practicability, accuracy and high efficiency.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a control schematic diagram of the present invention.
Fig. 3 is an electrical schematic of the actuator of the present invention.
Fig. 4 is an electrical schematic diagram of the audible and visual alarm of the present invention.
Fig. 5 is an electrical schematic of the timepiece of the utility model.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-5, an arc anomaly detection device in a welding process comprises a welding assembly, a detection control assembly and an upper computer, wherein the welding assembly comprises a welding gun, a wire feeding mechanism, a welding power supply and a movement mechanism which are connected with a welding wire through a welding cable, and the detection control assembly comprises a controller, a current and voltage acquisition card and an analog input unit; the voltage acquisition end of the current-voltage acquisition card is connected with the positive electrode and the negative electrode of the welding power supply to acquire actual welding voltage, and a current transformer is arranged on a positive electrode cable of the welding power supply and is connected with the current acquisition end of the current-voltage acquisition card through a control cable; the electric arc welding system comprises a current and voltage acquisition card, an analog quantity input unit, a controller, a timer and an audible and visual alarm, wherein the current and voltage acquisition card is connected with the analog quantity input unit through a control cable, the analog quantity input unit is connected with the controller through the control cable so as to transmit acquired welding voltage and welding current to the controller in real time for processing, the controller is connected with an upper computer through a communication line, the upper computer is connected with the timer and the audible and visual alarm, the timer is used for recording time nodes corresponding to the acquired welding voltage and welding current, and the audible and visual alarm is used for sending audible and visual alarm information when an electric arc abnormal state occurs; the controller is connected with the movement mechanism through a driver and a control cable.
And the current voltage acquisition card is also provided with an analog output pin and is connected with the analog input unit through the analog output pin and the control cable.
The analog input unit is provided with 10 pins and is connected with the current-voltage acquisition card through AI0, AI1 and AGND pins.
The driver is in a ULN2003 model, 16 pins are arranged on the driver, the driver is connected with the controller through a first pin, a third electromagnetic relay is arranged on a sixteenth pin of the driver, a first diode and a fifth resistor are connected in parallel on the third electromagnetic relay, and a motion mechanism interface is further arranged on the third electromagnetic relay to control the starting and stopping of the motion mechanism.
The audible and visual alarm comprises a first electromagnetic relay and a second electromagnetic relay which are connected with an upper computer in parallel, an indicating lamp is arranged on the first electromagnetic relay, and a loudspeaker is arranged on the second electromagnetic relay.
The type of the timer is DS1302, 8 pins are arranged on the timer, a fourth resistor and a fourth capacitor which are connected in parallel are arranged between a pin six and a pin seven of the timer, and the pin seven of the timer is connected with an upper computer.
The working principle of the arc abnormity detection device in the welding process is as follows: based on the integrated control effect of the controller, the controller is matched with various types of electric elements, welding current and welding voltage can be detected in real time, then data of the electric elements are processed to judge whether an abnormal arc state occurs, meanwhile, when the abnormal arc state occurs, sound and light alarm information can be sent out in a first-time response mode, the running action of a movement mechanism is stopped, protection is provided for welding equipment, manual operation is reduced, the intelligent level of a welding process is improved, and the application scene is wide; in particular, when an arc abnormal state occurs, the welding current and the welding voltage are greatly changed, and the use state of the welding assembly can be judged based on the change.
In the whole scheme, the welding assembly is mainly used for executing daily welding operation, the detection control assembly is used for detecting and acquiring welding voltage and welding current of the welding assembly in real time, meanwhile, the obtained data can be transmitted to the upper computer through a communication line for displaying, once an electric arc abnormal state occurs, the upper computer can send out audible and visual alarm information through an audible and visual alarm, and the controller stops the movement of the movement mechanism through a driver; generally, the driver has strong universality and can drive various types of motion mechanisms, such as a motor, a conveyor belt, a push rod and the like to start and stop.
When the welding voltage and the welding current are actually obtained, firstly, the anode and the cathode of a welding power supply are connected to a voltage collecting end of a current and voltage collecting card through a control cable to collect the actual welding voltage, then the welding voltage anode cable penetrates through a current transformer, and an analog quantity signal output by the current transformer is connected to the current collecting end of the current and voltage collecting card through the control cable to obtain the actual welding current; and then the actual welding current and the actual welding voltage are processed by the current and voltage acquisition card, and then analog signals which can be received by the analog input unit are output, so that the controller acquires corresponding detection data.
Furthermore, in some specific application scenarios, when the welding power supply has the actual welding current and welding voltage output function, the signal processed by the welding power supply can be directly accessed to the analog input unit without using a current and voltage acquisition card and a current transformer.
After the controller acquires welding voltage and welding current in real time, can detect algorithm processing in inside, after the actual welding current that detects and welding voltage numerical value deviate far away from setting for the threshold value and last the detection time of surpassing, the controller can judge that the electric arc is unusual at first, come the action of stop motion mechanism through the driver, send out the command of stopping the arc to welding power supply, the while is to host computer transmission information, the host computer shows unusual situation, and send audible-visual alarm information through audible-visual alarm all the time, until after manual intervention handles the completion welding abnormal state, just allow to clear away alarm information and continue to carry out hou mian welding process.
By the arc abnormity detection device and method, the moving mechanism can be effectively prevented from continuously walking forwards after the arc abnormity occurs in the welding process, the safety of equipment is protected, manual operation is reduced, and the intelligent level of the welding process is improved.
Preferably, the type of the driver is ULN2003, 16 pins are arranged on the driver, the driver is connected with the controller through one pin, a third electromagnetic relay is arranged on a sixteenth pin of the driver, a first diode and a fifth resistor are connected in parallel to the third electromagnetic relay, and a movement mechanism interface is further arranged on the third electromagnetic relay to control the movement mechanism to be started and stopped.
Preferably, audible-visual annunciator includes first electromagnetic relay and the second electromagnetic relay parallelly connected with the host computer, is equipped with the pilot lamp on first electromagnetic relay, is equipped with the speaker on the second electromagnetic relay, under two electromagnetic relay's effect, when electric arc abnormal state, pilot lamp and speaker quick response simultaneously provide the audible-visual alarm information that lasts for the user.
Preferably, the type of the timer is DS1302, 8 pins are arranged on the timer, a fourth resistor and a fourth capacitor connected in parallel are arranged between a pin six and a pin seven of the timer, the pin seven of the timer is connected with the upper computer, so that time nodes corresponding to the collected welding voltage and the collected welding current can be recorded, and when an abnormal condition occurs, corresponding time can be recorded, and the inquiry is facilitated.
In summary, the arc anomaly detection device in the welding process in the embodiment of the utility model is based on the integrated control effect of the controller, and is matched with various types of electrical elements, so that the welding current and the welding voltage can be detected in real time, and then the data of the welding current and the welding voltage are processed to judge whether an arc anomaly state occurs, and meanwhile, when the arc anomaly state occurs, the sound and light alarm information can be sent out in a first-time response manner, the operation action of a movement mechanism is stopped, the protection is provided for welding equipment, the manual operation is reduced, the intelligence level of the welding process is improved, and the application scene is wide; in particular, when an arc abnormal state occurs, the welding current and the welding voltage are greatly changed, and the use state of the welding assembly can be judged based on the change.
The above-described embodiments should not be construed as limiting the scope of the utility model, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (6)
1. The utility model provides an arc anomaly detection device among welding process which characterized in that: the device comprises a welding assembly, a detection control assembly and an upper computer, wherein the welding assembly comprises a welding gun, a wire feeding mechanism, a welding power supply and a moving mechanism which are connected with a welding wire through a welding cable, and the detection control assembly comprises a controller, a current-voltage acquisition card and an analog input unit; the voltage acquisition end of the current-voltage acquisition card is connected with the positive electrode and the negative electrode of the welding power supply to acquire actual welding voltage, and a current transformer is arranged on a positive electrode cable of the welding power supply and is connected with the current acquisition end of the current-voltage acquisition card through a control cable; the electric arc welding system comprises a current and voltage acquisition card, an analog quantity input unit, a controller, a timer and an audible and visual alarm, wherein the current and voltage acquisition card is connected with the analog quantity input unit through a control cable, the analog quantity input unit is connected with the controller through the control cable so as to transmit acquired welding voltage and welding current to the controller in real time for processing, the controller is connected with an upper computer through a communication line, the upper computer is connected with the timer and the audible and visual alarm, the timer is used for recording time nodes corresponding to the acquired welding voltage and welding current, and the audible and visual alarm is used for sending audible and visual alarm information when an electric arc abnormal state occurs; the controller is connected with the movement mechanism through a driver and a control cable.
2. The apparatus for detecting abnormality of arc in welding process according to claim 1, wherein: and the current voltage acquisition card is also provided with an analog output pin and is connected with the analog input unit through the analog output pin and the control cable.
3. The apparatus for detecting abnormality of arc in welding process according to claim 1, wherein: the analog input unit is provided with 10 pins and is connected with the current-voltage acquisition card through AI0, AI1 and AGND pins.
4. The apparatus for detecting abnormality of arc in welding process according to claim 1, wherein: the driver is in a ULN2003 model, 16 pins are arranged on the driver, the driver is connected with the controller through a first pin, a third electromagnetic relay is arranged on a sixteenth pin of the driver, a first diode and a fifth resistor are connected in parallel on the third electromagnetic relay, and a motion mechanism interface is further arranged on the third electromagnetic relay to control the starting and stopping of the motion mechanism.
5. The apparatus for detecting abnormality of arc in welding process according to claim 1, wherein: the audible and visual alarm comprises a first electromagnetic relay and a second electromagnetic relay which are connected with an upper computer in parallel, an indicating lamp is arranged on the first electromagnetic relay, and a loudspeaker is arranged on the second electromagnetic relay.
6. The apparatus for detecting abnormality of arc in welding process according to claim 1, wherein: the type of the timer is DS1302, 8 pins are arranged on the timer, a fourth resistor and a fourth capacitor which are connected in parallel are arranged between a pin six and a pin seven of the timer, and the pin seven of the timer is connected with an upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121614007.4U CN215468708U (en) | 2021-07-15 | 2021-07-15 | Arc anomaly detection device in welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121614007.4U CN215468708U (en) | 2021-07-15 | 2021-07-15 | Arc anomaly detection device in welding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215468708U true CN215468708U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121614007.4U Active CN215468708U (en) | 2021-07-15 | 2021-07-15 | Arc anomaly detection device in welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215468708U (en) |
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2021
- 2021-07-15 CN CN202121614007.4U patent/CN215468708U/en active Active
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