KR101219270B1

KR101219270B1 - Apparatus for welding

Info

Publication number: KR101219270B1
Application number: KR1020100089480A
Authority: KR
Inventors: 권오종; 김철민; 양문식; 박종진
Original assignee: 현대중공업 주식회사
Priority date: 2010-09-13
Filing date: 2010-09-13
Publication date: 2013-01-07
Also published as: KR20120027724A

Abstract

The present invention is provided with a control module for controlling the operation information of each component in each of the components constituting the welding apparatus and establishes a communication connection relationship between the control modules to control signals corresponding to the real-time state of each component The welding apparatus according to the present invention is to control the operation of the wire feeding device and the welding carriage while supplying power to the wire feeding device and the welding carriage. Including a welding power supply for generating and transmitting a signal, a wire feeding device for feeding a wire to the welding carriage and a welding carriage for receiving a wire from the wire feeding device and performing a welding operation through a welding torch provided at one side. The welding power supply is made of a welding power control module, a power supply means and insulation It is configured to include a new module, the welding power supply control module generates a welding current control signal and a welding voltage control signal to pass to the power supply means and generates a control signal for the operation of the wire feeder and the welding carriage. And a power supply unit to the wire supply device and the welding carriage, respectively, and the power supply unit supplies corresponding power to the wire supply device and the welding carriage according to the welding current control signal and the welding voltage control signal of the welding power control module. The insulation communication module transmits a control signal of the welding power supply control module to the wire feeding device and the welding carriage under the control of the welding power supply control module or state information input from the wire feeding device and the welding carriage. It serves to deliver to the welding power control module It shall be.

Description

Welding device {Apparatus for welding}

The present invention relates to a welding apparatus, and more particularly, each of the components constituting the welding apparatus is provided with a control module that can control the operation information of each constituent means and establish a communication connection relationship between the control modules The present invention relates to a welding apparatus capable of improving the accuracy of welding by allowing a control signal corresponding to a real time state of a component to be transmitted.

Conventional automatic welding device using a carriage is largely composed of a welding controller 110, a wire feeder 120 and a carriage 130 as shown in FIG. The welding controller 110 controls the operation of the wire feeder 120 and the carriage 130 through an electrical signal, and the wire feeder 120 feeds the wire to the carriage 130 under the control of the welding controller 110. In addition, the carriage 130 also performs a welding operation using the wire supplied under the control of the welding controller 110.

Such a welding controller 110, the wire feeder 120 and the carriage 130 has a communication connection via a single cable 200, the single cable 200 as shown in FIG. The signal line 210 is provided and electrical signals of the welding controller 110 are transmitted through the nine signal lines 210.

As described above, in the conventional automatic welding apparatus, the control signal of the welding controller 110, for example, the control signal relating to the wire feeding speed, the control signal relating to the moving speed of the carriage 130, and the like, are supplied with the wire feeding apparatus 120. And unilaterally transferred to the carriage 130 is taking the way that the wire feeder 120 and the carriage 130 is operated. However, this method is a method in which the control signal is unilaterally transmitted and operated by the welding controller 110 in a state in which the operation state of the wire feeder 120 and the carriage 130 are not reflected in real time. There is a problem that the accuracy of the welding operation is lowered.

In addition, in the conventional automatic welding device, since the power supplied to the wire feeding device 120 and the carriage 130 is supplied through a separate power line, there is a disadvantage that the device configuration is complicated.

The present invention has been made to solve the above problems, and provided with a control module for controlling the operation information of each component in each component constituting the welding device and establishes a communication connection relationship between the control modules It is an object of the present invention to provide a welding device that can improve the accuracy of welding by transmitting a control signal corresponding to the real-time state of each component means.

In addition, the present invention has another object to provide a welding device that does not require a separate power line connection to the wire feeder and the carriage by embedding a communication line and a power line in a single cable connecting each component means.

Welding apparatus according to the present invention for achieving the above object is a welding power supply for generating and transmitting a control signal for controlling the operation of the wire feeder and the welding carriage while supplying power to the wire feeder and welding carriage; It includes a wire feeding device for supplying a wire to the welding carriage and a welding carriage receiving the wire from the wire feeding device to perform a welding operation through a welding torch provided on one side, the welding power supply is a welding power supply control And a module, a power supply means, and an insulated communication module, wherein the welding power control module generates a welding current control signal and a welding voltage control signal and transmits them to the power supply means. Generate control signals for motion and transmit them to the wire feeder and welding carriage respectively. The power supply means serves to supply power corresponding to the welding current control signal and the welding voltage control signal of the welding power control module to the wire feeder and the welding carriage, and the insulation communication module. The control unit transmits a control signal of the welding power supply control module to the wire supply device and the welding carriage under the control of the welding power supply control module or transmits state information input from the wire supply device and the welding carriage to the welding power supply control module. Characterized in that.

The wire feeding device includes a feeding control module, a power conversion means, and an insulation communication module, wherein the feeding control module is a feeding speed control signal, a wire inching control signal, and a protection transmitted from a welding power control module of the welding power supply device. Performs wire feeding speed control, wire inching control, and protective gas purge control through a gas purge control signal, and transmits state information of a wire feeding device to the welding power supply device through the insulation communication module. The power converting means converts the AC power supplied from the power supply means of the welding power supply into a DC power supply to supply power to the power supply of the wire feeder, and the insulation communication module controls the supply control module. The status information of the wire feeder to the welding power supply or control the welding power supply It serves to receive a control signal transmitted from the module.

In addition, the welding carriage comprises a carriage control module, a power conversion means and the insulation communication module, the carriage control module is a control signal for the welding start-stop, the carriage transmitted from the welding power control module of the welding power supply device, the carriage It performs a control such as welding start-stop, carriage movement control, etc. through a control signal for movement, and transmits the state information of the welding carriage to the welding power supply device through the insulation communication module. The converting means converts the AC power supplied from the power supply means of the welding power supply into DC power to supply the power means of the carriage, and the insulated communication module controls the state of the welding carriage under the control of the carriage control module. Control signal transmitted from the welding power supply control module or to the welding power supply device Servant serves.

The welding power supply device, the wire feeding device and the welding carriage are communicatively and electrically connected to each other by a single cable, and a communication line and a power line are provided together in the single cable.

Welding apparatus according to the present invention has the following effects.

A control module is provided in each of the welding power supply, the wire feeding device, and the welding carriage, and the state information of the wire feeding device and the welding carriage is shared, and the corresponding control signals are transmitted from the welding power supply to the wire feeding device and the welding carriage. It is possible to improve the accuracy of the welding operation.

In addition, since the welding power supply device, the wire feeding device and the welding carriage are connected by a single cable, and the communication line and the power supply line are provided together in a single cable, a separate power supply line is not required, and thus the welding device is complicated. It can be avoided.

1 is a block diagram of a general automatic welding device.
2 is a cross-sectional view of a single cable according to the prior art.
Figure 3 is a block diagram of a welding apparatus according to an embodiment of the present invention.
4 is a cross-sectional view of a single cable according to an embodiment of the present invention.

Hereinafter, a welding apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 3, the welding apparatus according to an embodiment of the present invention includes a welding power supply 310, a wire feeding device 320, and a welding carriage 330. The wire feeding device 320 may be provided in plural and connected in series. In this case, the welding carriage 330 may be connected to the wire feeding device 320 provided at the most end thereof.

The welding power supply device 310 supplies power to the wire feeding device 320 and the welding carriage 330, and generates a control signal for controlling the operation of the wire feeding device 320 and the welding carriage 330. It serves to transfer, the welding power supply 310 is composed of a welding power control module 311, a power supply means 312 and the insulation communication module 313 in detail.

The welding power control module 311 basically generates a control signal for the power output from the power supply means 312 provided in the welding power supply device 310, that is, a welding current control signal and a welding voltage control signal to generate the power. It serves to deliver to the supply means (312). In addition, the welding power supply control module 311 generates a control signal for the operation of the wire feeder 320 and the welding carriage 330 to transmit to the wire feeder 320 and the welding carriage 330, respectively. Play a role. At this time, the operation control signal of the wire feeder 320 and the operation control signal of the welding carriage 330 is generated based on the state information input from the wire feeder 320 and the welding carriage 330, The control signal transmitted to the wire feeder 320 includes a feed speed control signal, a wire inching control signal, a protective gas purge control signal, and the like. The control signal transmitted to the welding carriage 330 includes welding start-stop. The control signal for, the control signal for the carriage movement, and the like is included.

The power supply means 312 serves to supply power corresponding to the welding current control signal and the welding voltage control signal of the welding power control module 311 to the wire feeder 320 and the welding carriage 330. Do it. At this time, the power output from the power supply means 312 may be AC power or DC power. The insulation communication module 313 transmits a control signal of the welding power supply control module 311 to the wire supply device 320 and the welding carriage 330 or controls the wire supply under the control of the welding power supply control module 311. It transmits the state information input from the device 320 and the welding carriage 330 to the welding power control module 311.

On the other hand, the wire supply device 320 is a device for supplying a wire to the welding carriage 330 in detail, comprising a supply control module 321, power conversion means 322 and the insulation communication module 323 do. The feeding control module 321 is a wire feeding speed through a feed speed control signal, a wire inching control signal, a protective gas purge control signal transmitted from the welding power control module 311 of the welding power supply device 310 Control, wire inching control and protective gas purge control, and the like, and serves to transmit the state information of the wire feeder 320 to the welding power supply device 310 through the insulation communication module 323. The power converting means 322 converts the AC power supplied from the power supply means 312 of the welding power supply device 310 into DC power to supply the supply motor, the solenoid valve for protecting gas, and the like. The insulation communication module 323 transmits the state information of the wire feeder 320 to the welding power supply device 310 or from the welding power supply control module 311 under the control of the feed control module 321. It serves to receive.

The welding carriage 330 is a device for performing welding through the welding torch provided on one side by receiving the wire from the wire supply device 320, the carriage control module 331, power conversion means 332 and the insulation communication Module 333 is configured. The carriage control module 331 controls the welding start-stop through a control signal for welding start-stop and a control signal for carriage movement transmitted from the welding power control module 311 of the welding power supply device 310. And performs an operation such as a carriage movement control, and transmits state information of the welding carriage 330 to the welding power supply device 310 through the insulation communication module 333. The power converting means 332 converts the AC power supplied from the power supply means 312 of the welding power supply device 310 into DC power and supplies the same to the motor itself. The insulation communication module 333 transmits the state information of the welding carriage 330 to the welding power supply device 310 or the control signal transmitted from the welding power supply control module 311 under the control of the carriage control module 331. It serves to receive.

As described above, the welding power supply device 310, the wire feeding device 320, and the welding carriage 330 constituting the welding device according to an embodiment of the present invention have been described. As described above, the welding power supply device 310 is described. The wire feeder 320 and the welding carriage 330 not only make a communication connection relationship with each other, but also form a relationship in which power of the welding power supply 310 is supplied to the wire feeder 320 and the welding carriage 330. have. Such a communication connection relationship and a power supply relationship between each component can be established by the single cable 400. That is, the welding power supply device 310, the wire feeder 320 and the welding carriage 330 are connected to each other by communication and electrically by a single cable 400, for this purpose as shown in FIG. The communication line 410 and the power line 420 are provided together in the cable. In addition, the communication line 410 and the power line 420 embedded in the single cable 400 may be composed of two strands, respectively. In the related art, only a signal line for communication is provided in the single cable 400, but in the present invention, since the communication line 410 and the power line 420 are provided together, the device complexity is excluded and the communication connection relationship is eliminated. It can be built efficiently.

310: welding power supply device 311: welding power supply control module
312: power supply means 313, 323, 333: isolated communication module
321: supply control module 322, 332: power conversion means
331: carriage control module 400: single cable
410: communication line 420: power line

Claims

A welding power supply for supplying power to the wire feeding device and the welding carriage and generating and transmitting a control signal for controlling the operation of the wire feeding device and the welding carriage;
A wire feeding device for feeding a wire to the welding carriage; And
Receiving a wire from the wire supply device is made of a welding carriage for performing a welding operation through a welding torch provided on one side,
The welding power supply device is configured to include a welding power control module, a power supply means and an insulation communication module,
The welding power control module generates and transmits a welding current control signal and a welding voltage control signal to the power supply means, and generates a control signal for the operation of the wire feeding device and the welding carriage, respectively. To communicate with,
The power supply means serves to supply power corresponding to the welding current control signal and the welding voltage control signal of the welding power control module to the wire feeding device and the welding carriage,
The insulation communication module transmits a control signal of the welding power supply control module to the wire supply device and the welding carriage under the control of the welding power supply control module or receives state information input from the wire supply device and the welding carriage. To communicate with,
The wire feeder is configured to include a feed control module, a power conversion means and an insulation communication module,
The supply control module is a wire supply speed control, wire inching control and protective gas purge control through the supply speed control signal, the wire inching control signal, the protective gas purge control signal transmitted from the welding power control module of the welding power supply device In addition to performing the operation of and delivers the state information of the wire feeder to the welding power supply device through the insulation communication module,
The power converting means converts the AC power supplied from the power supply means of the welding power supply into a DC power supply and supplies the power supply to the power supply of the wire feeder.
The insulation communication module is a welding device, characterized in that under the control of the feed control module transmits the state information of the wire feeder to the welding power supply device or receives a control signal from the welding power supply control module.

delete

The welding carriage of claim 1, wherein the welding carriage comprises a carriage control module, a power conversion means, and an insulation communication module.
The carriage control module performs the operation of the welding start-stop control, the carriage movement control through the control signal for the welding start-stop, the control signal for the carriage movement transmitted from the welding power control module of the welding power supply device; Together, it serves to deliver the state information of the welding carriage to the welding power supply device through the insulation communication module,
The power converting means converts the AC power supplied from the power supply means of the welding power supply into a DC power supply to supply the power means of the carriage,
And the insulation communication module is configured to transmit the state information of the welding carriage to the welding power supply device or to receive a control signal transmitted from the welding power supply control module under the control of the carriage control module.

The welding device according to claim 1, wherein the welding power supply device, the wire feeding device and the welding carriage are communicatively and electrically connected to each other by a single cable.

The welding device according to claim 4, wherein the single cable is provided with a communication line and a power line.

The welding apparatus according to claim 5, wherein the communication line and the power line embedded in the single cable are each 2 strands.