KR200457387Y1 - Welding machine switch-controlled and indicating condition - Google Patents

Abstract

The present invention output control control arc welding machine includes a welding switch and a display lamp to control the output operation in the welding rod holder of the welding gun, and the control circuit is provided so that the welding machine can operate according to the operator's control. It is related with the welding machine which a worker can perform welding work conveniently and stably.

In the case of the existing electric arc welding machine, the arc welding device for electric shock welding is attached to the side of the electric arc welding machine, so that the worker far from the welding machine can use the electric arc welding machine without knowing the state of the electric arc welding machine. There was a possibility of an accident.

 In the present invention, the output of the electric arc welder comes out only when the operator operates the output switch attached to the welding rod holder, and the output is displayed by the status indicator attached to the holder, so that the operator can work stably.

Welding, AC welding, arc welding, welding machine, control, welding rod holder, electric shock prevention, no load voltage

Description

Output welding control arc welding machine {Welding machine switch-controlled and indicating condition}

The present invention relates to a welding machine or a welding machine, including a welding switch and a display lamp for controlling the output operation in the welding rod holder of the welding gun, and equipped with a control circuit to operate the welding machine according to the operator's control. By presenting, the output display control type arc welding machine, which enables the operator to conveniently and stably weld, is presented.

Welding refers to a joining method for joining a member heated in a molten state by welding. In other words, it is a work of joining two metals together to make one, and it is different from mechanical joints using screws or rivets. In addition, there is a method of interposing and joining other heated metals between metals to be joined, which is also included in welding in a broad sense. It is necessary to heat-melt the base material and the additive material to be welded, and there are various welding methods.

Arc welding, another expression of electric welding, is a method of using electric arc discharge to join metal and metal. Carbon arc welding and carbon electrode using carbon electrode There are two kinds of metal arc welding used. The arc welding temperature is 5,000 ~ 6,000 K, and strong ultraviolet rays are emitted. Workers should wear helmets, aprons, and gloves to protect their eyes and body.

There are two types of arc welding: carbon arc welding using a carbon electrode and metal arc welding using a metal electrode. Carbon arc welding generates an arc between a welding base material and a carbon electrode. The welding rod inside it melts and fills the welding part. As the arc moves, the filling becomes hard and welded.Metal arc welding generates an arc between electrodes made of the same type of metal as the welding base material to melt the electrode itself. It is a method of joining a base material by filling a joining part.

1 is a view showing the configuration of a general arc welding machine.

As shown in the drawing, a general arc welder 10 receives 220 [V] or 380 [V], 440 [V] electric power through an input terminal 10x.

The input electricity is applied to the primary side (terminal) of the transformer [transformer] 104 through the breaker 102, and transformed about 60 [V] to 95 [V] on the secondary side (terminal) in proportion to the transformer ratio. It is induced to a state and output.

The output secondary electricity melts the metal parts to be worked on the workpiece X in the form of electric arc plasma through the welding cable 106, the electrode holder 108, and the electrode 110 through the output terminal 10y. Flowing through the welding clamp 112 is connected to another ground power supply line.

Accordingly, the secondary electric machine melts the workpiece X and the electrode 110 while flowing in an arc form between the welding rod 110 and the workpiece X to form a welding bead to bond the workpiece X with the melt. .

However, such a conventional arc welder 10 has a secondary voltage of up to 60V↔95V at the output terminal 10y of the arc welder 10 when the breaker 102 is large ('ON') even when no welding operation is performed. There is a danger of electric shock if the operator 23 holds the welding rod holder 108 and the welding rod 110. In addition, when the electrode 110 is in contact with the work material (X), the secondary battery flows and there is a risk of fire or burn.

In order to prepare for such a risk, an electric shock protector 20 is introduced and used in the arc welder 10.

Figure 2 is a view showing the configuration of the arc welding machine introduced an electric shock protector.

As shown, in the arc welder 10 in which the electric shock protector 20 is introduced, one of the power lines is connected to the arc welder 10, and separately from the two power lines and one input terminal of the arc welder 10 is an electric shock protector. Connect to the input terminal of (20). In addition, the electric shock protector 20 is connected to the output line connected to the welding rod holder 108 in the field to induce a low voltage of 15 [V] ↔25 [V] to the secondary output terminal 10y of the arc welder 10. It is configured to check the contact of the secondary circuit and to control the output.

Therefore, the electric shock protector 20 configured together with the arc welder 10 senses contact of the secondary circuit such as resistance value (starting sensitivity) of 0 [Ω] ~ 500 [Ω] within a short time (for example, starting at 0.03). Within seconds) The primary power is supplied to the arc welder 10, and at the same time, the output voltage of the rear end of the transformer 104 becomes normal, and at the end of welding, the input is cut off so that the output does not occur within a short time, for example, within 1 second. .

However, such an electric shock protector 20 is unstable in contact with the secondary circuit, or the output holding time is short, the welding operation is inconvenient, so some workers ignore the safety and use the electric shock protector 20 separately.

In addition, even in the case of the arc welding machine 10 with the electric shock protector 20 is installed, if the electrode holder 108 accidentally falls on the workpiece (X), the electric shock protector 20 is operated to generate an output of the arc welder 10 to fire Accidents occur. In general, the start sensitivity of the electric shock protector 20 is about 500 [Ω] or less, and when the welding rod 110 or the like is replaced with the welder's hand or clothes wet with water, the conductive portion or the welding rod of the electrode holder 108 ( When the 110 is in contact with the electric shock protector 20 operates to generate an output of the arc welder 10 causes a serious problem that the operator is electric shock.

In general, the electric shock protector 20 is installed near the transformer of the arc welder 10, so it is mostly used away from the operator (10↔100] M], and it is almost impossible for the operator to observe the operation state with the naked eye. In most cases, it is inconvenient to use because it is impossible, and therefore, a countermeasure for such a problem is required.

In addition, in addition to the solution to the conventional problems, there is an urgent need for a new and efficient structure or method for ease of welding in the arc welder 10.

Therefore, an object of the present invention for solving the above various problems, the circuit unit for checking and outputting the operating state of the arc welder and controlling the main power supply state of the arc welder according to the operator's adjustment; A switching unit which opens and closes the supply state of the main power supply according to the operation of the circuit unit by the operator's adjustment; A transformer unit for transforming and outputting power applied according to opening and closing of the switching unit; The head welding unit is displayed according to the output of the circuit unit, and the head welding unit is controlled by the output power of the transformer unit by controlling the operation state of the arc welding machine to perform welding; The present invention provides an output display control type arc welding machine capable of welding while performing the control of the arc welding machine while checking the operation state of the arc welding machine.

In the present invention, the circuit unit, the power supply unit for generating a power for receiving the power applied to each component of the circuit unit; A welding control unit which receives an output power from the power supply unit, outputs an operation state of the arc welding machine according to control from each component unit of the circuit unit to the title welding unit, and receives a control state on the title welding unit; ; A main power control unit which opens and closes the main power input to the arc welding machine according to the control on the heading welding unit received from the welding control unit; A comparison output unit which receives the output power from the power supply unit and checks the output voltage state of the transformer unit to control the arc welder to be welded on the title welding unit; A comparison output unit which receives the output power from the power supply unit, checks the output voltage state of the transformer unit, grasps the weldable state of the arc welder, and outputs it to the heading welding unit; There are features to include.

The heading welding unit may further include: a power supply lamp that receives an output from a welding control unit of the circuit unit and is turned on to indicate an operating state of the arc welding machine; An operation lamp that is turned on to indicate a weldable state of the arc welder in accordance with an output of the welding control unit controlled by the comparison output unit of the circuit unit; A welding switch opened and closed to control a main power supply state of the transformer unit; A welding rod holder electrically connected to one end of the transformer unit and inserting a welding rod; A welding clamp electrically connected to the other end of the transformer unit and holding the workpiece (X); There are features to include.

In addition, the switching unit is preferably configured to include any one of a relay (RELAY) and power electronic switching element for switching the opening and closing of the supply of the main power used in the arc welder.

In addition, in addition to providing a detailed description of the output display control-controlled arc welding machine according to the present invention, the configuration and description of this can be performed individually or in combination with each other.

Therefore, the present invention can completely eliminate risk factors such as electric shock or fire of the operator, and does not need to install an expensive electric shock protector. You get

In any case, the operator checks the welder status to ensure safety.

Hereinafter, with reference to the drawings will be described in detail the output control control type arc welding machine according to an embodiment of the present invention.

Figure 3 is a view showing the entire circuit and the connection state of the output control control arc welding machine according to an embodiment of the present invention, Figure 4 is a view showing a welding unit of the output control control arc welding machine of FIG.

FIG. 5 is a block diagram of the output control control arc welding machine of FIG. 3, and FIG. 6 is a circuit diagram showing an embodiment of the circuit unit of the control arc welding machine of FIG.

As shown, the output display control control type arc welding machine 50 of the present embodiment includes a circuit unit 510, a switching unit 520, a transformer unit 530, and a heading welding unit 540. It is coming true.

First, the circuit unit 510 of the present embodiment checks and outputs an operation state of the output display control control type arc welder 50 and controls the main power supply state of the arc welder 50 according to the operator's adjustment.

The main circuit unit 510 can be largely divided into a power supply unit 511, a welding control unit 512, a main power supply control unit 513, and a comparison output unit 514.

In the present embodiment, the power supply unit 511 of the circuit unit 510 is a component that generates power for receiving the power that has passed through the main power cut-off circuit breaker 50a and applying it to each component of the circuit unit 510. .

To this end, by reducing the general AC power applied to the output control control arc welding machine 50 through the self-transformer 511t of the power supply unit 511 and performing rectification, the circuit unit 510 operates, that is, the power supply unit. (511) It is used as an operating power source for the welding control section 512, the main power supply control section 513, and the comparison output section 514 in the next stage.

In FIG. 6, the dashed-dotted square part is a part capable of generating extra power, which is additionally configured, and is made to generate power in the future. Thus, each component of this circuit unit 510 can also make an extra circuit as needed.

In addition, the welding control unit 512 of the circuit unit 510 receives the output power from the power supply unit 511, the operation state of the main arc welder 50 according to the control from each component of the circuit unit 510. Output to the heading welding unit 540 and receives the control status on the heading welding unit 540.

Therefore, as shown in FIG. 6, when the operating voltage of the circuit unit 510 is output from the power supply unit 511, the output voltage from the power supply unit 511 applied to the welding control unit 512 first is an active circuit device for controlling operation. It is applied to the power lamp 541 without passing through. Accordingly, when the circuit breaker 50a is turned on and the voltage from the power supply unit 511 of the circuit unit 510 is output regardless of whether welding is performed, a power lamp 541 of the heading welding unit 540 is provided. ) Is activated and turned on to allow the operator to know that he is ready before welding.

The other circuit line of the welding control unit 512 is connected to the welding switch SW of the heading welding unit 540 through the control relay CR1.

Therefore, when the control relay CR1 is operated by turning on the welding switch SW of the head welding unit 540 while the power is applied from the power supply unit 511, the main power supply control unit 513 operates in a conductive state and continuously switches. Since the magnet circuit breaker MC of the unit 520 is operated to supply power to the peripheral pressure transformer 530t of the transformer unit 530, welding is performed by actually supplying power to the heading welding unit 540 so that welding can be performed. do. The operation after the power is supplied to the peripheral pressure 530t will be described later.

The main power control unit 513 of the circuit unit 510 is a component that performs opening and closing of the main power input to the arc welder 50 according to the control on the heading welding unit 540 received from the welding control unit 512.

In addition, another circuit line of the welding control unit 512 is configured to connect the control relay CR2 output terminal to operate according to the operation of the comparison output unit 514, the operation lamp 542 of the heading welding unit 540 (Run Lamp) Is turned on (ON), so that the actual worker performs welding while pressing the welding switch SW, power is applied to the welding rod holder 544 to inform the worker that welding is being performed.

As shown in the comparison output unit 514 of the circuit unit 510, the output voltage of the secondary side of the peripheral voltage 530t is compared with the output voltage of the circuit unit 510, so that the voltage of the secondary side of the peripheral voltage 530t is high. Control relay CR2 is configured to operate.

Therefore, in general, when the welding voltage is generated on the secondary side of the peripheral pressure transformer 530t, welding is performed by the secondary voltage of the peripheral pressure transformer 530t, unless there is a special abnormality, and thus the comparative output of the circuit unit 510 is performed. The output is generated at the rear end of the unit 514, and eventually the control relay CR2 of the comparison output unit 514 is operated to turn on the operation lamp 542.

The comparative output unit 514 of the circuit unit 510 operates the peripheral voltage 530t of the transformer unit 530 and the output voltage generated on the secondary side of the peripheral voltage 530t and the power supply unit 511 of the circuit unit 510. By comparing the voltage input from the ()) to generate its own output voltage, it is a component showing the state that the welding is being performed.

That is, the comparison output unit 514 compares the output voltage of the power supply unit 511 when a voltage is generated on the secondary side of the peripheral voltage transformer 530t, and then generates a new output based on the comparison result at the rear end portion. By turning on the operation lamp 542, the circuit unit 510 is operated such that the output display control-controlled arc welding machine 50 is operated as desired.

Next, in the output display control type arc welding machine 50, the switching unit 520 is a component that opens and closes the supply state of the main power according to the operation of the circuit unit 510 by the operator's adjustment.

As described above, the switching unit 520, as described above, presses the welding switch SW of the head welding unit 540, so that the main power supply control unit 513 of the circuit unit 510 is operated and eventually switches according to the operation of the control relay CR1. When the magnet circuit breaker MC of the unit 520 is operated, input power is applied to the transformer unit 530 through the switching unit 520.

As the switching element of the switching unit 520 is automatically operated in accordance with the operation of the welding switch 543 constituting the head welding unit 540, but not only a general relay (RELAY), but also a thyristor for controlling a large power ( Power electronic switching devices such as Thyristors, Triacs, power transistors, and the like are preferred.

The transformer unit 530 of the rear end of the switching unit 520 is a component for transforming the applied power according to the transformer ratio determined by a predetermined transformer ratio, for example, the winding ratio. In this embodiment, the transformer unit 530 is a peripheral pressure transformer (530t, transformer).

The heading welding unit 540 displays the operating state of the arc welding machine 50 according to the output of the circuit unit 510, and controls the operating state of the arc welding machine 50 to the output power of the transformer unit 530. According to the configuration for performing welding.

The heading welding unit 540 is configured to include a power lamp (541, Power Lamp), operation lamp (542, Run Lamp), welding switch 543, welding rod holder 544, welding clamp 545, welding In order to achieve the welding rod holder 544, a welding rod 55m is inserted and used.
Meanwhile, the electrode holder 544 is electrically connected to one end of the transformer unit 530, and the welding clamp 545 is electrically connected to the other end of the transformer unit 530.
The welding clamp 545 bites the workpiece X, and the welding rod 55m is connected to the workpiece X.

In addition, the power supply lamp 541 indicates the possible power supply state of the arc welder 50, and the operation lamp 542 indicates the actual welding power supply by sensing the secondary voltage of the output terminal 50y of the arc welder 50. Indicate whether supply is available.

In the present embodiment, the switching unit 520 is located between the circuit breaker 2 and the transformer 3 inside the arc welder 50. Accordingly, when the welding switch 543 attached to the welding rod holder 544 of the heading welding unit 540 is pressed (ON), a signal is transmitted to the circuit unit 510, and the power is supplied by operating the switching unit 520 to provide an arc. Welding is performed through the welder 50.

In addition, if the welding switch 543 is not pressed as the time or welding is completed while the welding operation is not performed (OFF), the switching unit 520 is turned off and the power to the transformer 3 is not supplied. Since no voltage is generated at the output terminal 50y of the welder 50, welding is not performed.

Therefore, through this, it is possible to completely solve the electric shock problem or the fire risk that occurs when the welding rod (55m) in contact with the workpiece (X) or the welding rod (55m) to the welding rod holder 544, which was a problem in the existing method of use. . In addition, since the operator can control the output at the desired position, welding is convenient and high quality welding result is obtained.

FIG. 7 is a view for explaining a process in which welding is performed through the control display arc welding machine of FIG. 3.

Eventually, when the welding power is output through the operation as described above, electricity flows in the arc form between the welding rod 55m inserted into the welding rod holder 544 and the working material X in the work material X and the welding rod 55m. Melting to form a melt pool to combine the workpiece (X) can be carried out welding.

In this embodiment, it is preferable to apply a low and safe voltage to the welding switch 543 attached to the welding rod holder 544 so that there is no risk of electric shock even when the wire is exposed.

In addition, the welding switch 543 may be configured to be changed to another form such as a remote controller as needed, and the switching unit 520, which is a power connection element, as described above, the thyristor, triac, It can be changed to a power electronic switching device such as a power transistor. In addition, the welding switch 543 and the power lamp 541 and the operation lamp 542 for the status display can be configured by variously changing the material, shape, color, etc. according to the welding rod holder 544.

In addition, the present invention has been described with reference to specific embodiments, but is not limited thereto, and may be variously implemented within the scope not departing from the concept of the present invention, and such various implementations belong to the scope of the present invention. will be.

1 is a view showing the configuration of a general arc welding machine.

Figure 2 is a view showing the configuration of the arc welding machine introduced shock protector.

Figure 3 is a view showing the entire circuit and the connection state of the output display controlled control arc welding machine according to an embodiment of the present invention.

Figure 4 is a view showing a welding unit of the output control control arc welding machine of Figure 3;

FIG. 5 is a block diagram of an output display controlled steering arc welder of FIG. 3; FIG.

FIG. 6 is a circuit diagram showing an embodiment of a circuit unit of the FIG. 3 output control control arc welding machine; FIG.

FIG. 7 is a view for explaining a process in which welding is performed through the output display controlled steering arc welding machine of FIG. 3; FIG.

          <Explanation of symbols for the main parts of the drawings>

50: Output display control steering arc welding machine

50a: breaker

510: circuit unit

511: power supply unit 511t: self-transformer

512: welding control unit 513: main power control unit

514: comparison output unit

520: switching unit

530: transformer unit 530t: peripheral pressure

540: heading welding unit

541: power lamp 542: run lamp

543: welding switch 544: welding rod holder

545: welding clamp

55m: welding rod

X: Work Material

Claims (4)

In arc welding machine, A circuit unit which checks and outputs an operation state of the arc welder and controls a main power supply state of the arc welder according to an operator's adjustment; A switching unit which opens and closes the supply state of the main power supply according to the operation of the circuit unit by the operator's adjustment; A transformer unit for transforming and outputting power applied according to opening and closing of the switching unit; The head welding unit is displayed according to the output of the circuit unit, and the head welding unit is controlled by the output power of the transformer unit by controlling the operation state of the arc welding machine to perform welding; Output display controlled controlled arc welder, characterized in that welding is possible while performing the control of the arc welder while checking the operating state of the arc welder at the welding site. The method of claim 1, wherein the circuit unit A power supply unit which receives power and generates power for applying to each component of the circuit unit; A welding control unit which receives an output power from the power supply unit, outputs an operation state of the arc welding machine according to control from each component unit of the circuit unit to the title welding unit, and receives a control state on the title welding unit; ; A main power control unit which opens and closes the main power input to the arc welding machine according to the control on the heading welding unit received from the welding control unit; A comparison output unit which receives the output power from the power supply unit and checks the output voltage state of the transformer unit to control the arc welder to be welded on the title welding unit; A comparison output unit which receives the output power from the power supply unit, checks the output voltage state of the transformer unit, grasps the weldable state of the arc welder, and outputs it to the heading welding unit; Output display control controlled arc welding machine comprising a. The method according to claim 1 or 2, wherein the heading welding unit A power lamp that receives an output from a welding control unit of the circuit unit and is turned on to indicate an operation state of the arc welder; An operation lamp that is turned on to indicate a weldable state of the arc welder in accordance with an output of the welding control unit controlled by the comparison output unit of the circuit unit; A control switch opened and closed to control a main power supply state of the transformer unit; A welding rod holder electrically connected to one end of the transformer unit and inserting a welding rod; A welding clamp electrically connected to the other end of the transformer unit and holding the workpiece (X); Output display control controlled arc welding machine comprising a. The method of claim 1, wherein the switching unit Output display control type controlled arc welder comprising any one of a relay (RELAY) and a power electronic switching device for switching the opening and closing of the supply of the main power used in the arc welder.

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