KR20140085197A - Manual welder weld pattern and weld heat input measurement system - Google Patents

Manual welder weld pattern and weld heat input measurement system Download PDF

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Publication number
KR20140085197A
KR20140085197A KR1020120155485A KR20120155485A KR20140085197A KR 20140085197 A KR20140085197 A KR 20140085197A KR 1020120155485 A KR1020120155485 A KR 1020120155485A KR 20120155485 A KR20120155485 A KR 20120155485A KR 20140085197 A KR20140085197 A KR 20140085197A
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KR
South Korea
Prior art keywords
welding
manual
pattern
sensor
voltage
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KR1020120155485A
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Korean (ko)
Inventor
하찬호
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현대중공업 주식회사
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Priority to KR1020120155485A priority Critical patent/KR20140085197A/en
Publication of KR20140085197A publication Critical patent/KR20140085197A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/28—Portable welding equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/241—Electric supplies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B23K11/252—Monitoring devices using digital means
    • B23K11/257—Monitoring devices using digital means the measured parameter being an electrical current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B23K11/252—Monitoring devices using digital means
    • B23K11/258—Monitoring devices using digital means the measured parameter being a voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/36—Auxiliary equipment

Abstract

Provided is a welding pattern and welding heat input measuring system of a manual welding machine comprising: a manual welding machine allowing a worker to weld a plate; a sensor which is mounted on the manual welding machine and measures the welding speed and the welding pattern of the manual welding machine; a power supplying unit supplying power to the manual welding machine; a voltage and current sensor measuring voltage and current of power supplied to the manual welding machine; a welding parameter server which analyzes data transmitted from the sensor and the voltage and current sensor, calculates welding heat input, and analyzes a welding pattern; and a display part which is connected with the welding parameter server and displays the analyzed and calculated data in the welding parameter server. Therefore, the system welding pattern and welding heat input measuring system of a manual welding machine can minimize welding defect by calculating accurate welding heat input by measuring the welding speed and the welding pattern of the manual welding machine and measuring the voltage and the current of power supplied to the manual welding machine, increase productivity by stabilizing welding quality by analyzing a welding pattern, and increase worker skill for a short time by uniformly maintaining the pattern in the event of the education of workers.

Description

Technical Field [0001] The present invention relates to a welder welding pattern and a welding heat input measurement system,

The present invention relates to a welding pattern and a welding heat input measuring system for a manual welding machine, and more particularly, to a welding apparatus for measuring a welding input heat amount of a manual welding machine using a voltage and current of a power source supplied to a manual welding machine, To a welding pattern and a welding heat input measuring system of a manual welding machine for measuring a welding pattern.

According to the conventional technique disclosed in Korean Patent Laid-Open Publication No. 2001-0060800, high-frequency electric resistance welding is a welding process capable of manufacturing a steel pipe at a high speed, and maintaining a weld heat quantity within an appropriate range is a well- It is very important to get. That is, when the heat input amount is insufficient, the melt of the welded portion is not discharged and the oxides in the melt remain on the weld interface, resulting in a defect called cold weld. On the contrary, when the heat input amount is excessive, A reflux occurs to the interface and a penetrator is generated. As can be seen from the above, it is the most important parameter to keep the heat input properly in order to minimize the defects of the welded part.

A method commonly used to maintain the direct heat input is to visually observe the shape of the bead of the high frequency electric resistance welded portion to judge whether or not the heat input is directly conducted. However, there are limitations in determining the soundness of the weld interface only by the bead shape. Recently, since the demand level for the welding quality has become higher, it is difficult to judge the soundness of the welded portion only by visual observation.

In addition, since the amount of heat input from the outside does not match the amount of heat input to the actual weld, the welder manufacturer indirectly checks the heat input by calculating the specific heat by heating the water with electric resistance heat. In addition, since the efficiency varies depending on various welding parameters, there is a problem in that it is difficult to recognize the actual welding portion power varying instantaneously in real time.

In the shipbuilding and marine industries, customers are required to increase the quality of welds by increasing the number of special shipboards and making them by special method, and welding heat quantity data for high quality guarantee is required by customers. However, welding parameters are dependent on manual measuring instruments. Storage and analysis are not performed. Real-time welding parameter collection and analysis is essential to prevent other welding quality degradation problems in the use of overcurrent / overvoltage of the operator and minimize current / voltage error due to welding equipment aging and noise.

The automatic welder can calculate the welding heat amount by automatically measuring the voltage / current / speed. However, since the manual welding machine can not calculate the speed required for calculating the heat input amount, it is impossible to calculate the welding heat amount.

The present invention has been made in order to solve the above problems, and it is an object of the present invention to measure a moving speed of a manual welding machine for welding a plate material by an operator using a sensor and a welding pattern of a worker, And to provide a welding pattern and a welding heat input measuring system of a manual welding machine which can minimize welding defects and stabilize welding quality by measuring and analyzing welding heat quantity and welding pattern of an operator.

To achieve the above object, the present invention provides a welding machine comprising: a manual welding machine for welding a plate material by an operator; A sensor mounted on the manual welder and measuring a welding speed and a welding pattern of the manual welder; Power supply means for supplying power to the manual welder; A voltage and current sensor for measuring a voltage and a current of a power source supplied to the manual welder; A welding parameter server for analyzing data transmitted from the sensor, the voltage and current sensors, calculating a welding heat input and analyzing a welding pattern; And a display unit connected to the welding parameter server and configured to display data analyzed and calculated by the welding parameter server, the welding pattern and the welding heat input amount measurement system of a manual welding machine.

In a welding pattern and welding heat input measuring system of a manual welding machine according to the present invention, the sensor may be provided in a torch portion of the manual welding machine, and the voltage and current sensor may be powered from the power supply means to the manual welding machine And the sensor, the voltage and the current sensor may transmit data to the welding parameter server using a wireless modem method including Bluetooth.

The welding pattern and the welding heat input measurement system of the manual welding machine according to the present invention measure the welding speed and the welding pattern of the manual welding machine and measure the voltage and current of the power source supplied to the manual welding machine, It is possible to improve the productivity by stabilizing the welding quality through the analysis of the welding pattern and to maintain the constant pattern in the training of the welding personnel so that the skill of the worker can be improved in a short time.

1 is a view schematically showing a welding pattern and a welding heat input amount measurement system of a manual welding machine according to the present invention.
FIG. 2 is a view illustrating a process of measuring a welding speed of a manual welder based on a weld surface welded by the manual welder shown in FIG. 1. FIG.
3 is a view illustrating a process of measuring a welding pattern of a manual welder based on a welded surface welded by the manual welder shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

FIG. 1 is a view schematically showing a welding pattern and a welding heat input measuring system of a manual welding machine according to the present invention. FIG. 2 is a view showing a welding speed of a manual welding machine measured based on a welding surface welded by the manual welding machine shown in FIG. FIG. 3 is a view illustrating a process of measuring a welding pattern of a manual welder based on a weld surface welded by the manual welder shown in FIG. 1. FIG.

Referring to the drawings, a welding pattern and a welding heat input measurement system 100 of a manual welding machine according to an embodiment of the present invention includes a manual welding machine 110, a sensor 120, a power supply means 130, A current sensor 140, a current sensor 150, a welding parameter server 160, and a display unit 170.

The manual welder 110 welds the plate material 10 by an operator and welds the plate material 10 using a base material that is supplied after gripping by the operator. The manual welder 110 is generally used, A description thereof will be omitted.

The manual welder 110 is provided with a torch portion 112 through which a base material for welding the plate 10 is discharged and a sensor 120 is mounted on the torch portion 112. The sensor 120 measures a welding speed and a welding pattern of the manual welder 110. The sensor 120 may be a three-axis acceleration sensor generally used in the market. The three-axis acceleration sensor senses dynamic forces such as acceleration and vibration, and utilizes inertial force, electric deformation, and the application principle of the gyro.

The three-axis acceleration sensor can instantaneously detect the motion state of an object and is widely used for various transportation means such as an automobile, a train, a ship airplane, a factory automation, and a control system of a robot.

The power supplied to the manual welder 110 is supplied from the power supply unit 130 and the power supply unit 130 is connected to the manual welder 110 by the connection member 132, To supply the necessary power for welding.

A voltage sensor 140 and a current sensor 150 are provided on the connection member 132 for supplying power to the power supply unit while connecting the manual welder 110 and the power supply unit 130. The voltage sensor 140 and the current sensor 150 measure the voltage and current of the power supplied to the manual welder 110 and the voltage sensor 140 and the current sensor 150 And may be provided at one end of the connecting member 132 connected to the power supply means 130.

Since the voltage sensor 140 and the current sensor 150 are provided at one end of the connecting member 132 connected to the power supply means 130, the operator can perform the welding operation while moving the manual welding machine 110 One end of the connection member 132 to which the voltage sensor 140 and the current sensor 150 are attached is fixed to the power supply means 130. The voltage applied to the connection member 132, thereby preventing the sensor and 140 the current sensor 150 is detachable.

The voltage sensor 140 and the current sensor 150, which are attached to one end of the connection member 132 and measure voltage and current of a power source supplied to the manual welder 110, are generally used in the market. A detailed description thereof will be omitted.

The voltage sensor 140 and the current sensor 150 provided in the sensor 120 and the connection member 132 mounted on the torch portion 112 of the manual welder 110 include a Bluetooth And transmits the data to the welding parameter server 160, which will be described later, using the wireless modem method.

The welding parameter server 160 analyzes data transmitted from the sensor 120, the voltage sensor 140, and the current sensor 150 to calculate a welding heat input amount and analyze a welding pattern.

The calculation of the welding heat input is expressed by Equation (1).

Figure pat00001

Here, Q represents the amount of welding heat input, E represents voltage (volt), I represents current (Ampere), and v represents velocity (cm / min).

The measurement of the velocity v in Equation 1 will be described with reference to FIG. During manual welding, the manual welder 110 moves up and down a certain distance moving left and right. At this time, if the time required for the vertical movement distance d is measured, the speed with respect to the entire weld surface 12 can be obtained by ignoring the lateral movement distance of the manual welder 110. If the vertical moving distance d of the welding surface 12 is divided by time, the speed of the manual welder 110 can be obtained. The vertical movement distance d of the welding surface 12 is used to calculate the reciprocating and vertical movement paths in real time using the sensor 120 and calculated by the welding parameter server 160. The welding parameter server 160 analyzes the welding pattern of the manual welder 110 by collecting the moving path of the sensor 120 in real time.

The welding parameter server 160 is connected to the display unit 170. The display unit 170 serves to allow the user to confirm the data analyzed and calculated by the welding parameter server 160.

Since the welding pattern of the manual welder 110 analyzed by the welding parameter server 170 is provided on the display unit 170, the user can check the welding pattern of the welding operation performed while checking the provided welding pattern, It is possible to confirm the widths w1 and w2 and the operator can stabilize the welding quality based on the widths w1 and w2 of the well-worked distance.

Therefore, by measuring the welding speed and the welding pattern of the manual welder 110 and measuring the voltage and current of the power source supplied to the manual welder 110, it is possible to minimize the welding defects by calculating the accurate welding heat input amount, It is possible to improve the productivity by stabilizing the welding quality through the analysis of the welding quality and to maintain a certain pattern in the training of the welding personnel so that the skill of the worker can be improved in a short time.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Welding pattern and welding heat input measurement system of manual welder
110: manual welding machine 112:
120: sensor 130: power supply means
140: voltage sensor 150: current sensor
160: Welding parameter server 170:

Claims (4)

A manual welder for welding the plate by an operator;
A sensor mounted on the manual welder and measuring a welding speed and a welding pattern of the manual welder;
Power supply means for supplying power to the manual welder;
A voltage and current sensor for measuring a voltage and a current of a power source supplied to the manual welder;
A welding parameter server for analyzing data transmitted from the sensor, the voltage and current sensors, calculating a welding heat input and analyzing a welding pattern; And
And a display unit connected to the welding parameter server and configured to display data analyzed and calculated by the welding parameter server.
The method according to claim 1,
Wherein the sensor is provided on a torch portion of the manual welder.
The method according to claim 1,
Wherein the voltage and current sensors are provided on a connection member for supplying power from the power supply means to the manual welder.
The method according to claim 1,
Wherein the sensor, the voltage and the current sensor transmit data to the welding parameter server using a wireless modem method including Bluetooth.
KR1020120155485A 2012-12-27 2012-12-27 Manual welder weld pattern and weld heat input measurement system KR20140085197A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102328571B1 (en) * 2020-11-16 2021-11-17 공순란 Welding torch motion measurement system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102328571B1 (en) * 2020-11-16 2021-11-17 공순란 Welding torch motion measurement system

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