KR101977496B1 - Welding torch weaving machine of automatic TIG welding machine - Google Patents

Abstract

The present invention relates to a welding torch weaving apparatus of an automatic TIG welding machine which allows a welding torch to weld a welding portion in a longitudinal direction while reciprocating horizontally to perform welding of a high degree and excellent quality in a short period of time. The welding torch weaving apparatus of an automatic TIG welding machine comprises: a main body (10) installed to move forwards and backwards in a longitudinal direction; a main driving unit (20) installed on the base body; a rotating unit (30) axially installed on an upper surface of the main driving unit to be rotated by the main driving unit; a variable unit (40) which is installed on an upper surface of the rotating unit to rotate with the rotating unit, and changes a position to allow a welding torch (70) to weave in proportion to a horizontal width of a welding portion of base metal when welding; a movable member (50) installed on a left side of the main driving unit to reciprocate horizontally, and provided with a welding torch vertically connected and installed on a left side thereof; and a crank (60) to switch rotational motion of the rotating unit to reciprocating motion to horizontally move the movable member back and forth.

Description

Welding torch weaving device of automatic TIG welding machine {Welding torch weaving machine of automatic TIG welding machine}

The present invention relates to a welding torch weaving apparatus of an automatic tag welder, and more particularly, to a welding torch welding longitudinally while reciprocating a welded part, which enables a high degree of quality and excellent quality welding in a short time. It relates to a welding torch weaving device.

Conventionally, a welding height adjusting screw is rotatably coupled to a welding height adjusting screw having a handle on a lower plate of a hinge slide housing slidably coupled to a pin housing of a welding machine, and an upper end of a cylindrical spiral tube is connected to an electrode housing to form a welding screw. In the welding height adjusting device of the TIG welder which is screwed into the inside of the hinge, the hinge pin is coupled between the upper and lower plates of the hinge slide housing and rotatably coupled to the other side of the hinge slide housing in a cylindrical portion Coupling pin is coupled to the support of one end of the kit, and the welding pin adjusting device is configured by rotatably coupling the welding radius adjusting screw whose handle is fixed to the end of the rotating pin and screwing the welding radius adjusting screw to the other rotating pin. Welding height tank of the TIG welder comprising a There is a device (Utility Model Registration No. No. 200 156 713).

However, the welding height adjusting device of the TIG welding machine can adjust the height of the torch body and the torch tip by manipulating the welding height adjusting screw according to the welding object, so that the welding height can be adjusted. When welding the two members, even if the height of the junction of the first member and the second member is different, but the effect that can be welded, but not to weaving the torch body and the torch tip automatically, as well as the flat first member and When welding the second cylindrical member, the welding machine is attached to the first flat member by using a magnetic bar, so it is installed and welded. Therefore, it is not applicable to welding the welding object (base metal) while moving in the longitudinal direction.

Therefore, conventionally, when welding a flat base material with a TIG welder in the longitudinal direction, the worker grasps the welding torch directly and welds it by hand. At this time, the welding torch is reciprocated to the left and right in correspondence to the left and right widths of the welded portion. Due to the welding in the direction, the workability is very poor, which requires a lot of manpower and time, as well as the degree of quality and quality of the welding, depending on the skill or the working environment, even for a skilled worker. there was.

The present invention has been invented in view of such a point, and an object thereof is to weld a welding torch automatically while reciprocating the left and right sides of the welding portion while welding while moving in the longitudinal direction. It is to provide a torch weaving device.

The present invention to achieve this object. A gas installed on the rail to move back and forth; The main body, the main motor installed in the main body, the transmission shaft installed vertically to penetrate the upper surface of the main body inside the main body, and the distance separated from the transmission shaft on the front and rear surfaces of the main body are mutually different. A main driving part having first and second electrode pins different in height and vertically installed in the same direction; Is installed on the upper surface of the main body, the rotating plate is fixed to the rotating shaft, and the ring plate-shaped first and second connecting electrodes are formed in and out on the lower surface of the rotating plate so that the upper end of the first and second electrode pins are connected, respectively. A rotating part having plates; A variable motor fixed to an upper surface of the rotating plate to receive Yin-Yang electricity by the first and second connecting electrode plates, a screw shaft installed in parallel with the variable motor in the middle of the rotating plate, and a shaft of the variable motor And a variable part including first and second gears which are rotatably coupled to each other and the screw shaft, and a variable body which is screwed through the screw shaft and is slidably moved along the rotational direction of the screw shaft; A movable member installed on the right and left sides of the main driving unit to reciprocate on a rail; The left end is installed in the center of the upper surface of the variable body and the right end is rotated by the pin shaft, respectively, and the crank for weaving the movable member by converting the rotational movement of the pivot into a reciprocating motion and the right side of the movable member It consists of a welding torch connected vertically and an automatic control system. When welding while moving in the longitudinal direction, the welding torch automatically welds with the weaving to reciprocate the welding part. It is to provide a welding torch weaving device of automatic TIG welder.

In addition, the present invention provides a manual tag welder by installing the main drive part, the rotating part, the variable part, the movable member, the crank, and the automatic control system of the weaving device in a conventional manual tag welder so as to weld the welding torch automatically. The present invention provides a welding torch weaving device for an automatic tag welder that can be used as an automatic tag welder without waste, thereby minimizing waste of related costs.

The welding torch weaving device of the automatic TIG welding machine of the present invention has a very simple structure, simple and easy operation, and the welding torch reciprocates from side to side in proportion to the left and right widths of the welded portion when welding while moving in the longitudinal direction. Welding is performed automatically while weaving. Therefore, even if there is a difference in the size of the left and right widths, it is possible to achieve high precision and high quality welding in a short time with a single device, and to minimize waste of related costs. Economic benefits such as giving.

1 is a perspective view schematically showing a welding torch weaving device of the present invention automatic TIG welder
Figure 2 is a perspective view showing a part of the welding torch weaving device of the present invention automatic TIG welding machine
3A and 3B are a plan view and a rear view showing an initial state in which the weaving device is not operated in FIG.
4A and 4B are a plan view and a rear view showing a state in which the variable body is moved to an eccentric position in FIGS. 3A and 3B.
Figures 5a, b is a plan view and a rear view showing the rotating plate rotated 90 ° counterclockwise in Figures 4a, b
6A and 6B are a plan view and a rear view of the rotating plate rotated 90 ° counterclockwise in FIGS. 5A and 5B.
7 is a block diagram of an automatic control system for automatically operating the welding torch weaving device of the present invention automatic tag welding machine.

Hereinafter, the welding torch weaving device of the automatic TIG welding machine of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing the welding torch weaving device of the automatic TIG welding machine of the present invention, Figure 2 is a perspective view showing a part of the welding torch weaving device of the automatic TIG welding machine of the present invention.

The welding torch weaving device of the present invention auto-tig welder of FIGS. 1 and 2 is provided on the upper surface of the main driving unit so as to rotate by the base 10, the main driving unit 20 installed on the base, and the main driving unit. Rotating portion 30, the variable portion 40 provided on the upper surface of the rotating portion, the movable member 50 is installed to reciprocate right and left on the right side of the main driving portion, and the rotational movement of the rotating portion as a reciprocating motion It is configured to include a crank 60 for switching the movable member to the left and right reciprocating by switching, a welding torch 70 connected vertically to the right side of the movable member, and an automatic control system 80 installed in the gas. It features.

The base 10 is installed to move in the longitudinal direction in the longitudinal direction on the rail 11 by being supplied with an external power source.

The base 10 and the welding torch 70 may be used as it is and the body of the conventional manual TIG welding machine as it is.

The main driving unit 20 is installed vertically to penetrate the upper surface of the main body 22, the main motor 22 installed in the main body, and the inside of the main body to transmit the rotational force of the main motor to the rotating unit 30. Distance between the transmission shaft 23 and the upper and rear surfaces of the main body, which are separated from the transmission shaft, and the heights are vertically installed to transmit the negative and positive electrodes to the rotating unit 30, respectively. First and second electrode pins 24 and 24 'and a limit switch 25 are provided on one side of the upper surface of the main body.

The main driving unit 20 is operated by receiving external power through the gas 10, and the first and second electrode pins 24 and 24 ′ can smoothly transfer the positive and negative electricity to the rotating unit 30. It is preferable to install a plurality each so that.

 The rotating part 30 has a disk shape, the rotating plate 31 having a shaft hole for axially fixing the electric shaft 23 at the center, and the upper ends of the first and second electrode pins 24, 24 ', respectively. The first and second connection electrode plates 32 and 32 'in a ring shape are formed in and separated from the bottom surface between the shaft hole and the outer end of the rotating plate so as to be connected to each other, and the outer periphery of the bottom surface is formed at 180 ° intervals to limit the switch ( First and second protrusions 33 and 33 'for alternately operating 25 are provided.

The first and second connection electrode plates 32 and 32 'may be formed by processing copper foil in the form of ring plates having different diameters, and attaching them to the inside and outside of the copper foil, or by forming a printed circuit board.

As described later, the first and second protrusions 33 and 33 'momentarily operate the limit switch 25 each time the rotating plate 31 rotates by 180 degrees, so that the first and second protrusions 33 and 33' By supplying a high-voltage Yin-Yang electricity to the electrode, respectively, the portion corresponding to the electrode of the base material is instantaneously heated at high temperature.

The variable portion 40 includes a variable motor 41 fixedly installed on the upper surface of the rotating plate 31 in an axis number, and a screw shaft 42 installed in the middle of the upper surface of the rotating plate so as to rotate idly in parallel with the variable motor. And first and second gears 43 and 43 ', which are respectively fixed to the shaft and the screw shaft of the variable motor so as to be rotated so as to rotate, and the screw shaft is screwed to penetrate its female screw shaft hole. It is provided with the variable body 45 supported by the guide 44 according to a rotational direction, and installed so that it may slide left and right without rotation.

The variable portion 40 is rotated in one body with the rotating plate as the variable motor 41 and the screw shaft 42 is installed on the upper surface of the rotating plate 31 in the respective axis number, the variable body 45 The initial position of is directly above the transmission shaft 23 for rotating the rotating plate on the same vertical line as the center of the rotating plate.

Then, the positive and negative electricity driving the variable motor 41 passes through the rotating plate 31 to connect the negative and negative terminals of the variable motor and the first and second connection electrode plates 32 and 32 'with respective wires. It is supplied through first and second electrode pins 24 and 24 'respectively connected to the first and second connection electrode plates.

When the screw shaft 42 installed in this way is rotated counterclockwise (the direction in which the screw is loosened), the screw shaft is idle by the number of shafts. In this case, the variable body 45 is the female screw shaft hole and the guide screwed to the screw shaft. By sliding the screw shaft does not rotate with the center position to the left.

When the screw shaft 42 is rotated clockwise (the direction in which the screw is tightened) while the variable body 45 is moved to the left as described above, the variable body screwed to the screw shaft does not rotate together with the screw shaft. It will move from the left to the center position.

The movable member 50 has a lower portion coupled to the movable rail 12 placed on the right side of the main body 21 so as to be positioned on a line coincident with the center of the pivoting plate 31 and the screw shaft 42 so as to move left and right sliding. It is installed, the upper end is the same height as the variable body (45).

The crank 60 is a bar-shaped bar, the left end is installed in the center of the upper surface of the variable body 45, the right end is rotated by the pin shaft (61, 61 '), respectively in the center of the upper surface of the movable member (50).

The crank 60 is a movable member 50 by converting the rotational motion to a reciprocating motion when the rotating plate rotates while the variable body 45 is in an eccentric position moved from the center of the rotating plate 31 to the left side. Weaving) to reciprocate the left and right on the movable rail (12).

The welding torch 70 is the same as the welding torch of the TIG welding machine which is generally used, and is vertically installed so as to be separated from the right side of the movable member 50 by a connecting pipe 71 and 71 'at predetermined intervals.

When welding, the positive electrode and the inert gas (argon or helium) required for the welding torch 70 are connected to the gas 10 through the cord 13 and the gas hose 14 connected to the gas 10, respectively. And through the interior of the connecting tubes (71) (71 ').

Of course, if necessary, a separate cord and a gas hose may be connected to the movable member 50 to supply or stop the positive electrode and the inert gas without passing through the gas 10.

The automatic control system 80 includes a filter 81 for reducing electromagnetic noise, a rectifier 82 for converting alternating current to direct current as shown in FIG. 7, and a smooth direct current for obtaining a direct current when converting alternating current to direct current. A transformer 83, a voltage stabilization circuit section 84 having a function of constantly maintaining a voltage at all times, and a charging section 85 and a circuit control section 86 for supplying electricity when the supply of electricity is interrupted at an unexpected time such as a power failure. It is configured by.

The automatic control system 80 is connected and installed using the yinyang electricity supplied to the gas 10 or the conventional manual TIG welding machine gas through the cord 13, the welding torch 70 in the longitudinal direction while weaving from side to side. Control the welding work automatically.

Therefore, when the main driving unit 20, the rotating unit 30, the variable unit 40, the movable member 50, the crank 60 and the automatic control system 80 are installed in a conventional manual TIG welder, the welding torch 70 Since the welding operation can be done automatically while weaving, it is possible to transform the automatic tag welding machine without the manual tag welding machine, thereby minimizing the waste of related costs.

Referring to the operating state of the welding torch weaving device of the present invention automatic TIG welder is configured as follows.

3A and 3B are a plan view and a rear view showing an initial state in which the weaving device is not operated in FIG. 1.

This state is an initial state in which the variable body 40 is not operated and the variable body 45 is located directly above the transmission shaft 23 which rotates the rotating part on the same vertical line as the center of the rotating plate 31. .

At this time, the welding torch 70 is positioned in the middle of the welding portion 2 of the base material 1, and the first and second protrusions 33 and 33 ′ formed at an interval of 180 ° on the outer circumference of the lower surface of the rotating plate 31. Among these, the first protrusion 33 is in a position of pressing the movable lever 251 of the limit switch 25.

In this state, the negative electrode is supplied to the base material 1 and the welding is started while the positive electrode and the inert gas are respectively supplied to the welding torch 70.

4A and 4B are a plan view and a rear view showing a state in which the variable body is moved to an eccentric position by operating in 3a and b.

In this state, the variable body 45 is moved to the left side corresponding to the left and right widths of the welded portion so as to be eccentric from the center in order to move in the longitudinal direction while welding the torch 70.

That is, after welding starts in the initial state of FIGS. 3A and 3B, the variable motor 41 is reversely driven, and the driving force is transmitted by the first and second gears 43 and 43 ′ so that the screw shaft 42 is screwed. Is rotated in the unwinding direction so that the variable body 45 is moved straight sliding from the center position to the left.

At this time, the distance to move the variable body 45 to the left from the center position is proportional to the distance between the left end and the middle of the welding portion (2), if the variable body is moved to the desired position on the left side of the variable motor 41 Since the reverse drive is stopped, the variable body is fixed at the position moved to the left.

In this way, when the variable body 45 moves to the left side, the left end of the crank 60 installed on the variable body moves linearly to the left side, and the right end of the crank is movable member 50 installed on the movable rail 12. Since the crank pulls the movable member and moves it to the left side on the movable rail in proportion to the degree of the left end moving straight to the left side, the welding torch 70 also moves to the left side along the welding part 2. Weld from the middle to the left end position.

In addition, when the welding torch 70 is located at the left end of the welding part 2, the main motor 22 is driven to reversely rotate the pivoting plate 31, so that the welding torch performs the welding while weaving. do.

5A and 5B are a plan view and a rear view of the rotating plate rotated 90 degrees counterclockwise in FIGS. 4A and 4B.

When the rotating plate 31 rotates 90 degrees counterclockwise in the same state as in FIGS. 4A and 4B, since the eccentric variable body 45 is moved from the left side of the center to the front side, by the operation of the crank 60. Since the movable member 50 moves to the right on the movable rail 12, the welding torch 70 moves from the left end to the right side to weld to the intermediate position of the welded part 2.

6A and 6B are a plan view and a rear view of the rotating plate rotated 90 ° counterclockwise in FIGS. 5A and 5B.

6A and 6B illustrate a state in which the rotating plate 31 is rotated 90 ° counterclockwise in the state of FIGS. 5A and 5B. In this case, since the variable body 45 that has moved to the front side moves from the front side to the right side, the crank ( Since the movable member 50 also moves to the right side on the movable rail 12 by the operation of the operation 60, the welding torch 70 moves to the right side, thereby welding from the middle to the right end position of the welding portion 2.

As described above, the welding plate 70 repeatedly performs welding while the rotation plate 31 makes one rotation, and the welding 10 repeatedly moves to the right through the left side. In this process, the base 10 is predetermined on the rail 11. The welding torch automatically welds the welded portion 2 in the longitudinal direction while repeating the weaving because it moves straight backward at a speed of.

In addition, since the temperature of the left end or the right end of the welded part 2 of the base material 1 is relatively lower than that of the center part being welded in the welding process, the limit switches 25 and the first and second parts are welded when the left end or the right end is welded. The projections 33 and 33 'operate to prevent a large amount of welding time or a welding defect from occurring.

That is, as shown in FIGS. 4A and 4B, when the lower end of the welding torch 70 is positioned directly above the left end of the welding part 2, the limit switch 25 in which the movable lever 251 is pressed by the first protrusion 33 is provided. ) So that electricity is supplied to the base material 1 and the electrode of the welding torch so that a high-voltage negative electrode is supplied to each electrode, so that the left end portion of the welding portion of the base material is immediately heated, as shown in FIGS. 6A and 6B. When the lower end of the welding part is located directly above the right end of the welding part, the second projection 33 'operates the limit switch by pressing the movable lever, so that the high voltage negative and positive electricity are supplied to the electrode of the base material and the welding torch, respectively. The right end of the heater is heated immediately to shorten the welding time and prevent welding defects.

In the welding torch weaving device of the automatic TIG welding machine as described above, the welding torch 70 repeatedly reciprocates the left and right sides of the welding portion 2 once each time the rotating plate 31 is rotated. Since the base 10 is moved straight in the longitudinal direction at a predetermined speed on the rail 11, the welding torch is characterized in that the welding is carried out by moving in the longitudinal direction while weaving automatically, by a lot of manpower It is possible to perform a high degree of quality and a good quality welding in a short time without the need for excessive time.

In addition, since the eccentric position of the variable body 45 is simply adjusted according to the rotational direction and the degree of rotation of the screw shaft 42, the position adjustment is very simple and easy, and accordingly the left and the right of the welded part 2 There is also a feature that can be welded to the base material (1) of different right width all in a single device.

10: gas 20: main drive unit
22: main motor 23: electric shaft
24, 24 ': first and second electrode pin 30: rotating part
31: rotating plate 32, 32 ': first and second connection electrode plate
40: variable part 41: variable motor
42: screw shaft 43,43 ': 1st, 2nd gear
45 variable body 50 movable member
60: crank 70: welding torch
80: automatic control system

Claims (5)

delete The main motor 21 is installed in the base 10 moving forward and backward on the rail, the main motor 22 is installed in the main body 21, and the main motor is installed vertically to penetrate the upper surface of the main body 21 therein. The first and second electrode pins having the same distance from the transmission shaft 23 for transmitting the rotational force of the 22 and the transmission shaft 23 at the front and rear of the upper surface of the main body 21 are different from each other and the height is the same. A main drive unit 20 having 24 and 24 ';
Rotating plate 31 is fixed to the transmission shaft 23, the rotating plate 31 is installed on the upper surface of the main drive unit 20 and the upper end of the first and second electrode pins 24, 24 'are connected to each other. A rotating part 30 including ring-shaped first and second connection electrode plates 32 and 32 'formed on the lower surface of the lower surface 31;
Variable motor 41 is fixedly installed on the upper surface of the rotating plate 31 to receive the Yin-yang electricity by the first and second connecting electrode plates 32, 32 ', and variable in the middle of the rotating plate 31 Screw shafts 42 installed in parallel with the motor 41 and the first and second gears 43 and 43 'which are installed to rotate in engagement with the shaft and the screw shaft 42 of the variable motor 41. And a variable part (40) comprising a variable body (45) screwed through the screw shaft (42) and installed to slide in accordance with the rotational direction of the screw shaft (42);
The lower part is coupled to the movable rail 12 installed on the left side of the main body 21 so as to be positioned on a line coincident with the center of the pivoting plate 31 and the screw shaft 42 so as to move left and right sliding. Movable member 50 is the same height as the variable body 45, the welding torch 70 is installed vertically on the right side; And
The left end is pivotally installed at the center of the upper surface of the variable body 45 by the pin shaft 61, and the right end is pivotally installed at the center of the upper surface of the movable member 50 by the pin shaft 61 ′. The welding torch weaving device of the automatic TIG welder, characterized in that it comprises a crank (60) for moving the movable member (50) left and right by switching the rotational movement of the 30). The method of claim 2,
A limit switch 25 installed at one side of an upper surface of the main body 21;
The outer circumferential portion of the rotating plate 31 is formed at an interval of 180 °, and the limit switch 25 is alternately operated according to the rotation of the rotating plate 31 so as to supply high-voltage electricity to the welding torch 70 and the base material, respectively. Welding torch weaving device of the automatic TIG welding machine, characterized in that it further comprises a first and second projections (33) (33 ') to supply. The method of claim 2,
The first and second electrode pins 24 and 24 'are each provided with a plurality of welding torch welding device of the automatic TIG welder. delete

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