KR101385297B1 - Circular Fillet Welding Carriage - Google Patents

Abstract

The present invention relates to a circular welding carriage that can always calculate a constant welding quality and maximize the work efficiency through automatic welding using the jig and carriage, jig 100 detachably installed on the base material: welding torch (1) It characterized in that it comprises a carriage 200 detachably installed on the jig 100 to be welded while rotating in the forward or reverse direction along the circumference of the base material.
According to a preferred embodiment of the present invention, the carriage installed in the jig is formed in a rotating structure, and is installed in a place requiring circular welding. Particularly, if the welding flame is released through the torch while the torch is fixed to the clamp of the carriage, the periphery of the base material is naturally welded while the torch is rotated through the cover part, thereby maximizing the convenience and working time. In addition, if it rotates at a constant speed, it is possible to always obtain a uniform welding result, so that post-welding post-welding work (removing and rewelding the welded part in case of defect after inspection) is unnecessary, thereby reducing the welding cost.

Description

Circular Fillet Welding Carriage

The present invention relates to a welding carriage, and more particularly, by installing a jig and a carriage in a place requiring circular welding, and automatically welding the circumference of a circular base material, it is possible to always obtain a welding quality of a certain quality. Relates to a circular welding carriage.

In general, a welding object such as a round pipe is generally welded while moving around the pipe slowly while the worker is sitting around, and the worker stirs several times to finish the welding at once. The welding quality was not constant because the welding had to be carried out while changing the quality. Furthermore, if the welding quality was not constant, the finishing work was continuously generated, and the work efficiency was inevitably decreased. Because of this decision, management had to invest enormous time and money to foster this workforce.

Conventional technology for solving the above problems is well known Patent No. 10-0617766, which is briefly described, clamping the distance provided between the pair of parallel base frame constituting the carriage in the carriage By adjusting the lever and the tensioning spring to facilitate the engagement of the carriage and the track-type guide device, the outer side of the pair of base frame is configured by a roller capable of adjusting the angle by the tilting lever is configured to various diameters There is an advantage applicable to the pipe of.

However, in the conventional technology, rail installation is essential in order to carry out welding through the carriage because the carriage can be moved only when the rail is installed around the pipe, and in the case of various pipe diameters, the rail is also installed accordingly. There was a serious problem that needs to be done.

The present invention has been devised to solve the above problems, the rail is essentially eliminated because there is no need to move the carriage, it is possible to always maximize the constant welding quality and work efficiency through automatic welding using the jig and carriage. The purpose is to provide a circular welding carriage.

According to an aspect of the present invention,

Jig detachably installed on the base material:

It characterized in that it comprises a carriage detachably installed on the jig to be welded while rotating in the forward or reverse direction around the base material via the torch.

In addition, in the present invention, the jig,

A housing in which the inside is opened upward and a coupling groove is formed in the opened inner surface;

A handle having a drive gear, the handle being installed in the housing to rotate the drive gear in a forward or reverse direction;

Equipped with a driven gear to rotate in engagement with the drive gear, it is characterized in that it has a plurality of fixed blocks that are installed on the bottom surface of the housing detachably installed on the base material.

In the present invention, the drive gear and the driven gear is characterized in that the bevel gear.

In addition, in the present invention, the fixed block,

A body part which is opened upwardly and fixed to a bottom of the housing;

A screw rotatably installed in the body portion;

A slide bar installed on the screw to reciprocate between the housing and the body;

It is installed on the screw is characterized in that it has a driven gear that rotates in engagement with the drive gear.

In addition, in the present invention, the housing is characterized in that the handle is further provided with reinforcement.

In addition, in the present invention, the carriage,

A rotating device rotatably installed on the jig;

An X-Y slider installed on the rotating device to adjust a welding distance between the base material and the torch;

A clamp rotatably installed on the X-Y slider to adjust the welding angle of the torch;

A motor installed on the rotating device to rotate the rotating device in the forward or reverse direction;

It characterized in that it comprises a control unit for controlling the operation of the motor.

In addition, the present invention, characterized in that the handle is further provided with a reinforcement to move on the rotating device.

In addition, in the present invention, the rotation device,

The first gear having a coupling protrusion, which is detachably installed in the coupling groove of the jig through the coupling protrusion, and has an inner portion of the main body opened upward, and a plurality of teeth continuously formed along the inner surface of the first gear, which is installed inside the body portion. An intermediate frame composed of;

It has a shaft that is rotatably coupled to the main body portion, and has a cover portion installed in the main body portion to cover the opening, and an upper frame consisting of a second gear fixed to the motor installed on the cover portion and interlocked with the first gear It is characterized by.

In the present invention, the X-Y slider,

A Y-axis feed unit adapted to adjust the movement in the torch vertical direction;

It characterized in that the X-axis transfer unit configured to adjust the movement of the torch in the horizontal direction.

Further, in the present invention,

The Y-axis transfer unit,

A first base, one end of which is opened along the longitudinal direction and installed vertically on the upper frame, a first screw rotatably installed on the first base, one end of which is movably coupled to the first screw, and the other end of which is outward. Consists of a transfer block protruding into;

The X-axis transfer unit,

A second base disposed to cross the first base and movably coupled to the transfer block, and a second screw rotatably installed on the transfer block disposed inside the second base to move the second base in a horizontal direction; Characterized in that configured.

In addition, in the present invention, the second base is further provided with a connecting arm having a turn pin, the turn pin is characterized in that one end of the clamp is rotatably installed.

According to a preferred embodiment of the present invention, the carriage installed in the jig is formed in a rotating structure, and is installed in a place requiring circular welding. Particularly, if the welding flame is released through the torch while the torch is fixed to the clamp of the carriage, the periphery of the base material is naturally welded while the torch is rotated through the cover part, thereby maximizing the convenience and working time. In addition, if it rotates at a constant speed, it is possible to always obtain a uniform welding result, so that post-welding post-welding work (removing and rewelding the welded part in case of defect after inspection) is unnecessary, thereby reducing the welding cost.

1 is a perspective view of the combined welding carriage according to the present invention.
2 is an exploded perspective view of a circular welding carriage according to the present invention.
3 is a side view of a circular welding carriage in accordance with the present invention.
4 is a plan view of a circular welding carriage according to the present invention.
5a to 5c is a perspective view and a bottom perspective view and a partial cross-sectional view of the jig separately extracted from the circular welding carriage according to the present invention.
Figure 6 is a plan view taken separately from the rotating apparatus in a circular welding carriage according to the present invention.
7 is a view for explaining the operating state of the rotating device in a circular welding carriage according to the present invention.
8A and 8B are views for explaining the operating state of the XY slider in the circular welding carriage according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed descriptions of related well-known functions or configurations are omitted when it is determined that the present invention may unnecessarily obscure the subject matter.

1 to 4, the circular welding carriage according to the present invention is composed of a jig 100 and a carriage 200, and is used to automatically weld a circular base material through the torch 1.

5A to 5C, the jig 100 is detachably installed on a base material, and includes a housing 110, a handle 120, and a plurality of fixing blocks 230.

The housing 110 has a circular shape as a whole, the inside of which is opened upwards, the coupling groove 111 is formed on the opened inner surface.

In particular, the coupling groove 111 is detachably inserted into the coupling protrusion 211a-1 of the intermediate frame 211 to be described later.

The handle 120 is installed in the housing 110 to rotate the drive gear 121 in the forward or reverse direction. In the present embodiment, the handle 120 is vertically installed at the center of the housing 110 and the end of the drive gear. 121 is installed.

Here, the drive gear 121 is a known bevel gear (bevel gear), it is rotatably engaged with the driven gear 134, which will be described later, the handle 120 is turned clockwise (or counterclockwise) when the handle The drive gear 121 fixed to the 120 is rotated, and at the same time, the driven gear 134 meshed with the drive gear 121 is also rotated together.

The upper circumferential surface of the handle 120 is preferably formed by the irregularities through the knurling (knurling) so that the operator can easily turn without slipping.

The fixing block 130 is installed on the bottom of the housing 110 is operated by the handle 120 is fixed to the base material detachably.

For reference, in the present embodiment, as shown in FIG. 5B, three fixed blocks 130 are installed at an angle of 120 degrees on the bottom surface of the housing 110, but this is only one embodiment. And, if necessary, two at a 180-degree angle, four may be installed at a 90-degree angle, it is not preferable to limit the analysis to this.

The fixed block 130 is composed of a body 131, a screw 132, a slide bar 133 and a driven gear 134.

The body portion 131 is a block having an upper opening, and in this embodiment, guides the slide bar 133 that is fixed to the bottom surface of the housing 110 and inserted into the inner portion.

The screw 132 is a rod having a thread tab formed on the outer surface thereof, and in this embodiment, the screw 132 is rotatably installed on the body 131, and one end thereof protrudes outward toward the driving gear 121 and is driven by the protruding portion. The gear 134 is fixed to the installation.

The slide bar 133 is a block having a '-' shape, in this embodiment one end (vertical portion) is movably coupled to the screw 132, the other end (horizontal portion) is a housing ( It is disposed between the 110 and the body portion 131 so as to reciprocate.

The driven gear 134 is a known bevel gear, and in the present embodiment, is fixed to one end of the screw 132 and meshes with the drive gear 121 to rotate.

The outer surface of the housing 110, the handle 140 is formed so that the worker can lift and move.

According to the present embodiment, as shown in FIG. 5C, the lower end of the housing 110 is first inserted into the hole H of the base material B, and then seated. Then, the drive 120 is rotated by the handle 120. Rotate

When the drive gear 121 is rotated by the handle 120, the driven gear 134 of the fixed block 130 that is engaged with the drive gear 121 is rotated, and the screw due to the rotation of the driven gear 134 132 is naturally rotated, and the slide bar 133, which is finally coupled to the screw 132, is naturally fixed while being protruded toward the inner surface of the hole (H).

In the present embodiment, the three fixed blocks 130 are configured to operate simultaneously through the driving gear 121 and the driven gear 134 through the manipulation of the handle 120.

On the other hand, if you want to release the fixed state of the jig 100 fixed to the hole (H) of the base material (B) If you turn the handle 120 in the reverse direction of the direction in which the initial handle 120 is operated naturally fixed The state is released.

Subsequently, the carriage 200 includes a rotation device 210, an XY slider 220, a clamp 230, a motor 240, and a control unit 250. In this embodiment, the torch 1 is mediated. Removably installed in the jig 100 to be welded while rotating in the forward or reverse direction along the circumference of the base material (B).

2, 6, and 7, the pivoting device 210 includes an intermediate frame 211 and an upper frame 212, and in this embodiment, is rotatably and detachably installed on the jig 100. .

The intermediate frame 211 includes a main body 211a and a first gear 211b.

The main body portion 211a is a cylinder having an inside opening upward and having a predetermined height, and a hole is formed in the center thereof, and a cylinder for wrapping and protecting the handle 120 of the jig 100 is integrated at the bottom thereof. It is formed as, the coupling projection 211a-1 detachably coupled to the coupling groove 111 of the jig 100 is formed integrally on the circumferential surface of the cylinder.

The first gear 211b is a known spur gear in which a plurality of teeth are continuously formed along an inner surface thereof. In the present embodiment, the first gear 211b is installed inside the main body 211a and will be described later. ) And each other.

2, 8A, and 8B, the upper frame 212 includes a cover part 212a and a second gear 212b.

The cover part 212a is a disc having a predetermined thickness, and a shaft 212a-1, which is rotatably coupled to the center of the main body part 211a, is integrally formed at the center thereof.

For reference, a known bearing is inserted and fixed around the shaft 212a-1, and a nut washer (NW) is provided at the distal end of the shaft 212a-1 to prevent the bearing from being detached. 2) was fastened.

Here, the bearing is used for minimizing frictional resistance when the shaft 212a-1 of the cover portion 212a is rotated at the center of the main body portion 211a.

In addition, the cover part 212a is formed with a hole H (see FIGS. 6 and 8A) so that the shaft of the motor 240 can be inserted between the edge and the center.

The second gear 212b is a known spur gear. In the present embodiment, the second gear 212b is fixed to the motor 240 installed on the cover 212a and meshes with the first gear 211b.

According to the present embodiment, when the motor 240 is operated, the second gear 212b fixed to the shaft of the motor 240 is naturally rotated by the shaft while the inner surface teeth of the first gear 211b are rotated. And the outer teeth of the second gear 212b mesh with each other, the second gear 212b naturally rotates about the axis 212a-1 of the cover part 212a along the inner surface of the first gear 211b. Done.

Therefore, the XY slider 220, the clamp 230, the motor 240, the control unit 250, and the moving handle 260 installed on the upper surface of the cover part 212a are naturally caused by the rotation of the cover part 212a. Will be able to rotate

Furthermore, when the welding flame is released through the torch 1 in the state in which the torch 1 is fixed to the clamp 230, the torch 1 is rotated through the cover part 212a. ) Because it welds the circumference naturally, it can maximize the convenience and working time of the work, and if you rotate it at a constant speed, you can always obtain a uniform welding result. And re-welding) can reduce the cost of welding.

1 and 2, 8A and 8B, the XY slider 220 is composed of a Y-axis feed unit 221 and an X-axis feed unit 222, in the present embodiment the rotating device 210 It is installed on.

Here, the Y-axis transfer unit 221 serves to adjust the height between the base material (B) and the torch 1 by moving the torch 1 in the vertical direction, the X-axis transfer unit 222 is a torch (1) is moved along the horizontal direction to adjust the front and rear spacing between the base material (B) and the torch (1).

The Y-axis transfer unit 221 is composed of a first base 221a, a first screw 221b and a transfer block 221c.

The first base 221a is a block whose one end is opened along the length direction, and is installed vertically on the upper frame 212 in this embodiment.

The first screw 221b is a rod having a screw tab formed on a circumferential surface thereof. In the present embodiment, the first screw 221b is rotatably installed on the first base 221a, and the first base 221a may be easily operated by an operator. Protrude upward).

One end of the transfer block 221c is movably coupled to the first screw 221b and the other end protrudes outward. For reference, the other end is connected to the second base 222a of the X-axis transfer unit 222. It is inserted and the second screw 222b is fastened.

The X-axis transfer unit 222 is composed of a second base 222a and a second screw 222b.

The second base 222a is a block in which one end is opened along the length direction in the same manner as the first base 221a. In the present embodiment, the second base 222a is disposed to cross the first base 221a and moves to the transfer block 221c. Possibly combined.

The second screw 222b is a rod having a thread tab formed on a circumferential surface in the same manner as the first screw 221b. In the present embodiment, the second screw 222b is rotatable to a transfer block 221c disposed inside the second base 222a. It is coupled so as to move the second base 222a in the horizontal direction.

Meanwhile, referring to FIG. 2, a connection arm 223 having a turn pin 223a is installed at one end of the second base 222a of the X-axis transfer unit 222, and a clamp 230 is provided at the turn pin 223a. One end of the pan is rotatably installed.

Therefore, since the clamp 230 is rotatably fixed to the turn pin 223a as described above, the welding angle of the torch 1 can be easily adjusted.

The clamp 230 includes a main body 231 rotatably installed on the turn pin 223a; A cover 232 rotatably installed at one end of the main body 231 to press-fix the torch 1; The other end of the main body 231 is installed to be rotatable via a hinge to limit the rotation of the cover 232 and at the same time the cover 232 in one direction so that the cover 232 presses the torch 1 and can be fixed. It consists of an intermittent pin 233 to pressurize.

Since the clamp 230 is already well known in the art, a detailed description thereof will be omitted.

The motor 240 is a known stepping motor, and in the present embodiment, is installed on the upper frame 212 of the rotating device 210 to rotate the upper frame 212 in the forward or reverse direction. do.

The operation of the motor 240 is controlled through the control unit 250 or the operation is controlled through a controller such as a separate remote controller.

The control unit 250 is a control unit for controlling the operation of the motor 240, in the case of the present embodiment is installed on the rotating device 210.

For reference, the control unit 250 is exposed to a variety of control means such as a power button, a motor direction switching button, a motor speed button, the operator can easily control the welding speed by operating the exposed control means.

In the present embodiment, when the power is applied by pressing the power button formed in the control unit 250, the motor 240 is rotated in the forward or reverse direction by the operation signal of the control unit 250, the motor 240 The second gear 212b fixed to the shaft of the motor 240 is rotated by the rotation of the second gear 212b to mesh with the teeth of the first gear 211b, so that the first gear 211b is rotated. Since moving along the inner surface of the upper frame 212 coupled to the intermediate frame 211 is naturally rotated about the vertical axis.

On the other hand, on the pivoting device 210, a moving handle 260 is further provided to reinforce and move the carriage 200.

In addition, the movement handle 260 is provided with a wire clamp 261 (see Fig. 2) that can be fixed to the various wires as needed, the wire clamp 261 is fixed to the torch (1) mentioned above. Since it has the same structure as the clamp 230, a detailed description thereof will be omitted.

Referring to the state of use of the present invention made of a configuration as described above are as follows.

First, the jig 100 is inserted and fixed firmly into the hole H of the base material B to be welded, and then the carriage 200 is inserted into and fixed to the jig 100 installed on the base material B.

First, the process of installing the jig 100 in the hole H of the base material B will be described. The lower end of the housing 110 is inserted into the hole H of the base material B to be seated.

Next, the drive gear 121 is rotated by turning the handle 120 formed at the upper center of the jig 100. In detail, the drive gear 121 is rotated by the handle 120. When the driven gear 134 of the fixed block 130 engaged with the drive gear 121 is rotated, the screw 132 is naturally rotated due to the rotation of the driven gear 134, and finally to the screw 132 The slide bar 133 that has been coupled is fixed while protruding toward the inner surface of the hole H naturally.

In the present embodiment, it is preferable to configure the three fixed blocks 130 to operate simultaneously via the drive gear 121 and the driven gear 134 through the operation of the handle 120.

If the jig 100 is firmly fixed to the hole (H) of the base material (B), the operator seats the carriage 200 to the top of the jig 100 to be fixed, which will be described in more detail as follows. same.

First, the worker lifts the coupling protrusion 211a-1 installed on the intermediate frame 211 of the rotation apparatus 210 in the state of holding the carriage 200 through the moving handle 260, the housing 110 of the jig 100. It is fixed by inserting into the coupling groove 111 formed on the inner surface.

For reference, the intermediate frame 211 coupled as described above is fixed to the coupling groove 111 through the coupling protrusion 211a-1, even though the upper frame 212 is rotated through the motor 240 in the middle. The frame 211 is able to continuously maintain the state fixed to the housing 110.

After the carriage 200 is installed on the jig 100, the torch 1 is fixed by the clamp 230 of the carriage 200, and then welded to the base material B through the torch 1. Is carried out.

At this time, if the distance between the base material (B) and the torch 1 is too far or too close, and the welding is poor, the distance between the base material (B) and the torch (1) is controlled by the XY slider 220 installed on the rotating device (210). If you adjust it, it will be explained in more detail as follows.

First, if the height is not matched between the base material (B) and the torch (1) by rotating the first screw (221b) rotatably installed on the first base (221a) of the Y-axis transfer unit 221 about the vertical axis When given, the transfer block 221c movably coupled to the first screw 221b by the rotation of the first screw 221b is raised and lowered.

In addition, when the front and rear gaps between the base material B and the torch 1 do not match, when the second screw 222b rotatably installed on the second base 222a of the X-axis transfer unit 222 is rotated, In the stopped state of the transfer block 221c, the second base 222a is moved in the horizontal direction.

On the other hand, when the welding angle between the base material (B) and the torch 1 does not match, by rotating the clamp 230 installed on the turn pin 223a of the connecting arm 223 about the axis of the turn pin 223a. Just set the welding angle.

When the base material B and the torch 1 are set to be weldable optimization as described above, the power is applied by pressing the power button formed on the control unit 250, and by the operation signal of the control unit 250. The motor 240 rotates in the forward or reverse direction, and as the second gear 212b fixed to the shaft of the motor 240 rotates by the rotation of the motor 240, the second gear 212b is the first gear. Since the upper frame 212 coupled to the intermediate frame 211 is naturally rotated about the vertical axis because it moves along the inner surface of the first gear 211b by meshing with the teeth of 211b. Welding is performed along the circumference of the base material (B) via the torch (1) in the process.

On the other hand, the carriage 200 is installed in the sensor 200 via the motor 240, the rotation device 210 is rotated or rotated after the rotation of a plurality (2 to 3) for one rotation or multi-layer welding is no longer rotated. It is desirable to automatically stop the operation so that it does not occur.

For reference, the detection sensor is a typical limit switch (limit switch) and an automatic optical sensor (optical sensor) is typical.

Meanwhile, after the welding is completed, the torch 1 is separated from the clamp 230 by pressing the power button of the control unit 250 to cut off the applied power, and then the carriage 200 from the jig 100. Completely escapes.

When the removal of the carriage 200 is completed, the steering wheel 120 formed at the center of the housing 110 of the jig 100 is rotated in the opposite direction to the direction in which the initial handle 120 is operated. The slide bar 133 of the fixed block 130 is moved inward through the 121 and the driven gear 134, thereby releasing the state fixed in the hole (H).

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

1: torch 100: jig 110: housing
120: handle 130: fixed block 200: carriage
210: rotating device 211: intermediate frame 212: upper frame
220: XY slider 221: Y axis feed unit 222: X axis feed unit
223: connection arm 230: clamp 240: motor
250: control unit 260: handle for movement

Claims (11)

As the jig 100 and the carriage 200,
Jig 100,
A housing 110 in which the inside is opened upward and the coupling groove 111 is formed on the opened inner surface;
A handle 120 having a drive gear 121 and installed in the housing 110 to rotate the drive gear 121 in a forward or reverse direction; And
With a driven gear 134 to rotate in engagement with the drive gear 121, and includes a plurality of fixed block 130 is installed on the bottom of the housing 110 detachably mounted to the base material,
The carriage 200,
Equipped with a coupling protrusion (211a-1), detachably installed in the coupling groove 111 of the jig 100 via the coupling protrusion (211a-1), the inside and the main body portion (211a) opened upwards and , An intermediate frame 211 that is installed inside the main body 211a and includes a first gear 211b having a plurality of teeth continuously formed along an inner surface thereof, and a shaft 212a- rotatably coupled to the main body 211a. 1), the cover part 212a installed in the main body part 211a and covering the opening, and the motor 240 installed on the cover part 212a are fixed to the first gear 211b. A rotating device 210 having an upper frame 212 composed of a second gear 212b;
XY slider 220 installed on the rotating device 210 to adjust the welding distance between the base material and the torch 1;
A clamp 230 rotatably installed on the XY slider 220 to adjust the welding angle of the torch 1;
A motor 240 installed on the rotating device 210 to rotate the rotating device 210 in the forward or reverse direction; And
Circular welding carriage, characterized in that it comprises a control unit 250 for controlling the operation of the motor (240).
The method of claim 1,
The drive gear 121 and the driven gear 134 is a circular welding carriage, characterized in that the bevel gear.
The method of claim 1,
The fixed block 130,
A body portion 131 which is opened upward and fixed to a bottom surface of the housing 110;
A screw 132 rotatably installed on the body 131;
A slide bar 133 installed on the screw 132 to reciprocate between the housing 110 and the body 131;
Circular welding carriage, characterized in that provided with a driven gear 134 is installed on the screw 132 and meshes with the drive gear 121.
The method of claim 1,
Circular welding carriage, characterized in that the moving handle 260 is further provided on the pivoting device 210 so as to be moved.
The method of claim 1,
The XY slider 220,
A Y-axis feed unit 221 adapted to adjust the movement of the torch 1 in the vertical direction;
Circular welding carriage, characterized in that consisting of the X-axis transfer unit 222 to adjust the movement in the horizontal direction of the torch (1).
6. The method of claim 5,
The Y-axis transfer unit 221,
One end is opened along the longitudinal direction and the first base 221a is installed vertically on the upper frame 212, the first screw 221b is rotatably installed on the first base 221a, and one end is It is composed of a transfer block 221c movably coupled to one screw (221b) and the other end protrudes outward;
The X-axis transfer unit 222,
The second base 222a which is disposed to cross the first base 221a and is movably coupled to the transfer block 221c, and the rotatable to the transfer block 221c disposed inside the second base 222a. Circular welding carriage, characterized in that composed of a second screw (222b) for moving the second base (222a) in the horizontal direction.
The method according to claim 6,
The second base 222a is further provided with a reinforcing arm 223 having a turn pin 223a, and one end of the clamp 230 is rotatably installed at the turn pin 223a to adjust the welding angle of the torch 1. Circular welding carriage characterized in that it is adjustable.
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