KR101575193B1 - Potable Monitoring System for Welding - Google Patents

Abstract

The invention relates to a portable welding monitoring device capable of simultaneously monitoring welding current, welding voltage and pressing force after welding by a welding machine and monitoring the welding current, As a result,
A case 10 in which a handle 11 is provided on an upper part and a plurality of rubber pedestals 12 are installed on a bottom surface and the upper part and the lower part are detachably coupled to each other; A plurality of substrates (13) formed with electronic circuits for statistical analysis and analysis of current and voltage, welding time and pressing force and embedded in the case (10); A display 21, a plurality of function keys 22, a menu key 23, a setting key 24, a direction key 25 and a hold key 26, which are provided on the front surface of the case 10, (27) and a holding lamp (28); A plurality of cable connectors 31, 32 and 33 provided on the rear surface of the case 10 and to which a current, a voltage and a pressing force sensor cable are connected, a power connecting portion 34 and an on / off switch 35, A LAN connector 36, and a rear board 30 provided with an input / output signal cable connector 37.

Description

[0001] Potable Monitoring System for Welding [0002]

 The invention relates to a portable welding monitoring device capable of simultaneously monitoring welding current, welding voltage and pressing force after welding by a welding machine and monitoring the welding current, .

Generally, welding is performed by heating the joints of metals or nonmetals to make them melt or semi-molten. Welding is called fusion welding, pressure welding, brazing or the like depending on the bonding method of the object. .

The welding is a method in which the joint portion of the base material is heated in a molten state to bond or fusion is injected and fused. The pressure welding is a method of bonding the joint portion by heating the joint portion in a semi-molten state or applying a mechanical pressure in a cold state, Means a method of introducing a filler that melts at a temperature lower than that of the metal and joining the filler using a suction force generated by the surface tension of the filler.

The arc welding is divided into arc welding and resistance welding. In the arc welding, an arc is generated by applying a current between the base material and the torch, and the welding is performed by melting using the heat generated at the welding. It is widely used in industry.

The quality evaluation of arc welding is important for improving productivity by detecting whether welding is bad or not. In arc welding, the voltage and current vary depending on the welding condition, so the welding voltage and current waveform are applied to evaluate the quality and stability of the arc welding.

On the other hand, after welding using a welding machine, it is difficult to manage welding quality because statistical analysis of these data can not be performed only by confirming whether welding is performed well through current, voltage and welding time.

The following patent documents were searched as a result of confirming prior art documents related to the management of the welding quality.

In Patent Document 1, the current heating temperature, the welding current amount, and the pressure of the welding wheel that can objectively determine the welding condition are read, objectively compared with the reference set value, and an error is detected to determine a defect in the welding condition A welding condition determining device is described.

Patent Document 2 discloses a resistance welding monitoring device that simultaneously detects a welding current, a welding voltage, a pressing force, and an electrode displacement as a result of welding by a resistance welding machine, and monitors the welding current, the pressing force, and the electrode displacement by monitoring means.

Patent Document 3 discloses a monitoring apparatus for arc welding in which the welding current, the welding voltage, and the welding speed of the welding wire applied to the electrodes of the arc welding machine are detected and monitored in the same phase in the same phase.

Patent Document 4 discloses a method for storing welding conditions to grasp the state of welding during automatic welding in the production of steel structures in which welding quality is important, and for monitoring and analyzing conditions of various welding conditions specified when welding high- And real-time welding condition recording analysis method and apparatus.

Patent Document 5 discloses an arc welding quality judging apparatus and method for judging the quality of arc welding by detecting welding current and voltage in an arc welding process of an arc welding system as an automated robot in an automation process and analyzing through a neural network .

However, the devices described in the above-mentioned prior art documents have a problem in that it is difficult to monitor the welding quality in real time at a welding site which is formed as a large structure at various places.

KR 10-2003-0053821 A KR 10-2003-0083650 A KR 10-2003-0083652 A KR 10-2004-0048078 A KR 10-2009-0064067 A

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a portable electronic apparatus capable of carrying a portable electronic apparatus capable of monitoring the welding quality through statistical analysis, And to provide a welding monitoring apparatus.

According to an aspect of the present invention, there is provided a portable welding monitoring apparatus comprising: a case having a handle on an upper portion thereof, a plurality of rubber pedestals on a bottom surface thereof, A plurality of substrates formed with electronic circuits for statistical analysis and analysis of current and voltage, welding time and pressing force and embedded in the case; A front plate installed on a front surface of the case and having a display, a plurality of function keys, a menu key, a setting key, a direction key and a hold key, and a power lamp and a hold lamp; A plurality of cable connectors provided on a rear surface of the case and to which a current, a voltage and a pressure sensor cable are respectively connected, and a rear plate having a power connection portion, an on / off switch, a LAN connection portion, and an input / output signal cable connector, , The current and voltage, the welding time and the pressing force, and manages the upper and lower limits, and makes statistical analysis on the data.

In addition, according to the operation of the menu key, the display mode is switched to the measurement mode, the history inquiry mode, the monitoring mode, the status check mode, and the environment setting mode. The measurement is stopped or the setting operation is performed.

In addition, in the measurement mode, the current, the voltage, and the pressing force are respectively measured, the RB points are counted, and the display screen is set.

In addition, in the history inquiry mode, the measurement history, the abnormality occurrence history, the setting change history, and the counter reset history are inquired.

In addition, in the monitoring mode, upper and lower limit values are set for each measurement target, and an alarm indicating an error sounds when the measurement value is out of the upper and lower limit values.

In addition, in the status check mode, the input / output signal and the sensor-related signal are checked, and the time and date and the version of the program are confirmed.

In addition, the measurement mode, the measurement reference, the measurement level, and the measurement time are set in the environment setting mode.

The present invention as described above improves the accuracy of welding quality control by measuring and analyzing the current, voltage, welding time and pressing force at the time of welding after welding as portable equipment, And can contribute to improvement of welding technology.

1 is an external perspective view of a portable welding monitoring apparatus according to the present invention;
2 is a rear perspective view of a portable welding monitoring device of the present invention.
3 is a front view and a rear view of the portable welding monitoring device of the present invention.
Figures 4 and 5 show the interior of a portable welding monitoring device of the present invention.
6 is a reference diagram showing a main menu of the portable welding monitoring apparatus of the present invention.
7 is a reference view showing a main screen of the portable welding monitoring apparatus of the present invention.
8 is a reference view showing a screen in which a main menu selection window is displayed;
9 shows a measurement mode and a screen of the sub-item.
10 is a reference view showing various screens of the history inquiry mode.
11 is a reference diagram showing various screens of the monitoring mode.
12 is a reference view showing various screens of the status check mode.
13 is a reference view showing a screen of the environment setting mode.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications are possible. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a portable welding monitoring apparatus according to the present invention, FIG. 2 is a rear perspective view of the portable welding monitoring apparatus of the present invention, FIG. 3 is a front view and a rear view of the portable welding monitoring apparatus of the present invention, 4 and 5 are diagrams showing the inside of the portable welding monitoring apparatus of the present invention. FIG. 6 is a reference view showing a main menu of the portable welding monitoring apparatus of the present invention. FIG. 7 is a reference view showing a main screen of the portable welding monitoring apparatus of the present invention. Fig. 10 is a reference view showing various screens of the history inquiry mode, FIG. 11 is a reference view showing various screens of the monitoring mode, FIG. 12 is a view showing a state checking mode FIG. 13 is a reference view showing a screen of the environment setting mode. FIG.

As shown in the figure, the portable welding monitoring apparatus according to the present invention includes a case 10 having a handle 11 on an upper portion thereof, a plurality of rubber pedestals 12 on a bottom surface thereof, ; A plurality of substrates (13) formed with electronic circuits for statistical analysis and analysis of current and voltage, welding time and pressing force and embedded in the case (10); A display 21 and five function keys 22, a menu key 23, a setting key 24, a direction key 25 and a hold key 26, (27) and a holding lamp (28); A plurality of cable connectors 31, 32 and 33 provided on the rear surface of the case 10 and to which a current, a voltage and a pressing force sensor cable are connected, a power connecting portion 34 and an on / off switch 35, A LAN connector 36, and a rear panel 30 having an input / output signal cable connector 37.

After the welding is completed, the current, voltage, welding time, and pressing force at the time of welding are measured, and the upper and lower limits of the welding current and the pressing force are controlled and statistical analysis is performed on the data.

However, if the substrate 13 is configured to perform the following functions, its specific structure may be configured, and thus a detailed description thereof will be omitted.

As shown in FIG. 8, the display mode is changed to the measurement mode, the history inquiry mode, the monitoring mode, the status check mode, and the environment setting mode according to the operation of the menu key 23, The screen of the display unit 21 is switched. As shown in FIG. 7, the measurement is performed according to the operation of the hold key 26, or the measurement is stopped and the setting operation is performed.

In the measurement mode, as shown in FIG. 9, the current, the voltage, and the pressing force are measured, the RB is counted, and the display screen is set. Accordingly, the measured value is displayed at the time of welding when the hold lamp is off, and when the hold key is pressed, the hold lamp is turned on so that various keys can be used. At this time, the function key may display the previous data F2, the next data F3, the counter reset F4, the screen setting F5, etc., as shown at the bottom of the screen.

Accordingly, after pressing the main key F1, the direction key 25 is operated to display 'average current ↔ maximum current ↔ average voltage ↔ maximum voltage ↔ welding cycle ↔ welding time ↔ average resistance ↔ minimum resistance ↔ average power ↔ Power Consumption ↔ Average Heat Input ↔ Total Heat Input ↔ Average Pressure ↔ Maximum Pressure ↔ Real Time Pressure ↔ Pressurization Time ↔ Welding Condition Series ↔ Rpt Counter ↔ Blank ↔ Average Current '

It is also possible to change the screen setting by operating the F5 key to select the sub-item. That is, select the sub-items for the whole or each of the plurality of welders, such as' full ↔ energizing 1 ↔ energizing 2 ↔ energizing 3 ↔ all ', and then,' average pressing force 최대 maximum pressing force 실시간 real time pressing force 가 pressing time 용접 welding condition sequence 타 Counter ↔ blank ↔ average pressing force 'can be displayed.

In the history inquiry mode, the measurement history, the abnormality occurrence history, the setting change history, and the counter reset history are inquired as shown in FIG. 10A shows a welding result history screen, FIG. 10B shows an auxiliary display window showing various data for each welder at a specific point in time, FIG. 10C shows a history data window of a welding result, The layout type is shown. (D) shows an abnormal occurrence history screen, (e) shows a setting change history screen, and (f) shows a counter change history screen.

In the monitoring mode, as shown in FIG. 11, the upper and lower limit values are set for each measurement object, and an alarm indicating an error sounds when the measurement value is out of the upper and lower limit values. For reference, FIG. 11A shows a screen for setting a monitorable upper limit and a lower limit, and FIG. 11B shows a window for setting an error output selection.

In the state check mode, as shown in FIG. 12, the input / output signal and the sensor-related signal are checked, and the time and date and the version of the program are confirmed. 11 (a) shows a screen for input / output signal confirmation, (b) shows a sensor related status display window, (c) shows a date / time setting window, A screen showing the version of the program is displayed.

In the environment setting mode, the measurement mode, the measurement reference, the measurement level, and the measurement time are set as shown in Fig.

The portable welding monitoring apparatus of the present invention configured as described above moves to a position where a welding machine is installed and then collects various data related to welding by connecting with a welding machine with various sensor cables and statistically analyzes the welding data So that the welding quality can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that numerous modifications and variations can be made to the present invention without departing from the scope of the present invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

10: Case 11: Handle
12: rubber pedestal 13: substrate
20: Front panel 21: Display
22: function key 23: menu key
24: Setting key 25: Direction key
26: Hold key 27: Power lamp
28: Hold lamp 30: Rear plate
31, 32, 33: cable connector 34: power connection
35: ON / OFF switch 36: LAN connection
37: I / O signal cable connector

Claims (7)

A case 10 in which a handle 11 is provided on an upper part and a plurality of rubber pedestals 12 are installed on a bottom surface and the upper part and the lower part are detachably coupled to each other;
A plurality of substrates (13) formed with electronic circuits for statistical analysis and analysis of current and voltage, welding time and pressing force and embedded in the case (10);
A display 21 and a plurality of function keys 22, a menu key 23, a setting key 24, a direction key 25 and a hold key 26, which are provided on the front surface of the case 10, (27) and a holding lamp (28);
A plurality of cable connectors 31, 32 and 33 provided on the rear surface of the case 10 and to which a current, a voltage and a pressing force sensor cable are connected, a power connecting portion 34 and an on / off switch 35, A LAN connector 36, and a rear board 30 having an input / output signal cable connector 37,
Current, voltage, welding time, and pressing force, and manages the upper and lower limits, and statistical analysis of data is performed,
A current, a voltage, and a pressing force are measured according to the operation of the menu key 23, and also the measurement mode, the history inquiry mode, the monitoring mode, the status check mode, and the environment setting mode The display of the display 21 is switched according to the setting of the menu after the setting key 24 is pressed and the measurement is executed or the setting operation is performed according to the operation of the hold key 26 Portable welding monitoring device.
delete delete The method according to claim 1,
And the history monitoring unit inquires the measurement history, the abnormality occurrence history, the setting change history, and the counter reset history in the history inquiry mode. The method according to claim 1,
In the monitoring mode, upper and lower limit values for each measurement target are set,
And an alarm indicating an error sounds when the measured value is out of the upper and lower limit values. The method according to claim 1,
Wherein the status checking mode checks the input / output signal and the sensor-related signal, and verifies the time and date and the version of the program. The method according to claim 1,
And the measurement mode, the measurement reference, the measurement level, and the measurement time are set in the environment setting mode.

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