KR20130109808A - Auto welding apparatus for windoe frame of ship's cabin - Google Patents

Abstract

PURPOSE: An apparatus for automatically welding the window frame of a cabin is provided to be controlled so as to have a traveling speed suitable to a curved portion and a straight portion with recognizing the traveled surface, thereby completing welding once without disconnection. CONSTITUTION: An apparatus for automatically welding the window frame of a cabin includes a welding apparatus main body (1), a manual X-Y axis slide (2), a torch control automatic slide (3), a welding torch, a guide roller portion (5), a tracking sensor portion (6), and a controller (7). The welding apparatus main body includes multiple driving wheels. The manual X-Y axis slide includes X-axis and Y-axis slides. The torch control automatic slide moves the welding torch forward and backward. The welding torch is mounted on the torch clamp of the torch control automatic slide. The guide roller portion guides the traveling of the welding apparatus main body. The tracking sensor portion senses the shape of metal frame configuring the window. The controller controls the forward backward distance of the torch control automatic slide and the speed of the driving wheels.

Description

Auto welding apparatus for windoe frame of ship's cabin}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabin window frame automatic welding device, and more particularly, to an apparatus for automatically welding a window frame composed of a straight portion and a corner portion formed in a cabin of a ship to a hull.

Ships have cabins for sailors and passengers, each of which is provided with a welded window frame.

The basic shape of the window frame is made of a glass and a metal border integrally, as shown in Figure 12, consisting of a straight portion and a curved portion of the corner, the metal border has a form protruding up and down. For reference, typical cabin frame sizes are 450 450 500mm, 500 ㅧ 800mm and the curvature of the curve is usually about 125.5R.

Figure 13 is an exemplary view showing a window frame welding by a manual operation according to an embodiment of the prior art. The general method of fixing the window frame to the hull is to be fixed by fillet welding the contact portion between the outer surface of the metal frame forming the window frame and the hull.

Specifically, in the conventional window frame welding operation, a cabin window frame in which a glass and a metal frame are integrated is usually attached to the hull through manual welding work by a worker in a cabin forging factory. This welding process usually takes about 7 minutes, and the welding is divided into 5 to 7 times. The reason for this work is to check the quality of the weld bead, because the basic shape of the window frame is composed of a curved portion and a straight portion is necessary to change the welding posture, such that the welding worker can not continuously weld at once. This causes a problem that the welding time is delayed.

In addition to the delay in welding time as well as manual welding, an additional 3 minutes to improve the welding quality deterioration due to the decrease in the welding quality due to the interruption of welding several times and the unevenness of the welding beads generated during the straight and corner welding. There is a problem that the mapping work is required.

In addition, there is a problem that the productivity decrease due to the decrease in welding speed due to manual welding, the fatigue of the operator increases due to the welding posture instability due to manual welding, the worker is exposed to musculoskeletal disorders.

Domestic Patent Registration Publication 10-0193960 (1999.02.05.) Domestic Patent Registration Publication 10-0880350 (2009.01.16.) Domestic Patent Registration Publication 10-0893057 (2009.04.03.) Domestic Patent Registration Publication 10-0900856 (2009.05.27)

An object of the present invention for solving the above problems is to continuously weld by controlling the cabin window frame of the structure in which the curved portion and the straight portion are mixed to have a traveling speed that matches the curved portion and the straight portion while recognizing the running surface through the sensor The present invention provides an automatic welding device which is completed at one time and also controls welding position of the welding torch so that welding quality between the window frame and the hull is uniformly controlled and welded so that no additional finishing work is required after welding.

The present invention to achieve the object as described above and to perform the problem for eliminating the conventional drawbacks and a welding apparatus body having a plurality of drive wheels;

A manual X-Y-axis slide composed of an X-axis slide provided on the rail support portion coupled to the upper portion of the welding apparatus body, and a Y-axis slide for lifting up and down the torch adjustment slide provided on the X-axis slide;

A torch adjustment automatic slide installed on the Y-axis slide to advance the welding torch;

A welding torch mounted on the torch clamp of the automatic torch adjustment slide;

Guide roller parts which are fastened to both sides of the welding device main body and guide the running of the welding device main body by rollers engaged with the window frame edges;

A trekking sensor unit installed across the guide rollers on both sides to detect a shape of a metal frame constituting the window frame;

It is achieved by providing a cabin window frame automatic welding device, characterized in that consisting of; the controller is installed on the main body of the welding device to adjust the forward and backward distance of the torch adjustment automatic slide and the speed of the driving wheels according to the measurement information of the trekking sensor.

According to an exemplary embodiment of the present invention, the plurality of driving wheels may be configured to be controlled by a controller such that the driving wheels farther than the driving wheels closer to the window frame rotate in a curve portion.

According to an embodiment of the present invention, the guide roller part may include a guide arm protruding toward the window frame from the welding device body, a clamping guide bracket installed at the end of the guide arm, and a pair of rollers installed under the clamping guide bracket. have.

According to an embodiment of the present invention, one of the pair of rollers may be configured such that the welding apparatus main body travels while the other of the pair of rollers is installed on the inside of the metal border and the other is guided according to the shape of the metal border.

According to a preferred embodiment of the present invention, the trekking sensor unit includes a trekking arm coupled to both side guide rollers; A trekking sensor housing coupled to the trekking arm; A rack gear shaft installed through the inside of the trekking sensor housing and having a tracking roller bracket formed at one end thereof; A spring support shaft fastened to the rear end of the rack gear shaft; A spring inserted into the spring support shaft to support the trekking sensor housing and pressurize the rack gear shaft on the other side at all times; A tracking roller coupled to the tracking roller bracket and in contact with the window frame; A pinion gear geared to the rack gear shaft; And a potentiometer for detecting a change in distance from the window frame edge as the pinion gear rotates.

As described above, the present invention can be completed in one-time welding without welding after welding while controlling the welding torch position while recognizing the cabin window frame having a structure in which a curved portion and a straight portion are mixed through a sensor, and thus improving productivity.

In addition, by controlling the running speed of the automatic welding device by the sensor to run faster at the corner than the straight part, the welding quality deviation caused by the speed mismatch (straight line, curve) is reduced,

In addition, the quality of the welding bead is improved by adopting an automatic welding method that performs welding while precisely controlling the position of the welding torch.

In addition, the invention is a useful invention having the advantage that can prevent the workers musculoskeletal disorders due to automatic welding is an invention that is expected to use greatly in the industry.

1 is a perspective view of an automatic welding device according to an embodiment of the present invention,
2 is an exploded perspective view of an automatic welding device according to an embodiment of the present invention;
3 is a front view of an automatic welding device according to an embodiment of the present invention,
4 is a plan view of an automatic welding device according to an embodiment of the present invention,
5 is a side view of an automatic welding device according to an embodiment of the present invention,
Figure 6 is a perspective view of the guide roller portion according to an embodiment of the present invention,
Figure 7 is a side view of the guide roller portion according to an embodiment of the present invention,
8 is a perspective view of a trekking sensor unit according to an embodiment of the present invention;
9 is a plan view of a trekking sensor unit according to an embodiment of the present invention;
10 is a side view of a trekking sensor unit according to an embodiment of the present invention,
11 is an exemplary view illustrating an operation principle of a trekking sensor unit according to an embodiment of the present invention.
12 is an exemplary view showing a straight portion and a curved portion of the automatic welding device according to an embodiment of the present invention.
13 is an exemplary view showing a cross-sectional structure of the welded portion between the window frame and the hull,
14 is an exemplary view showing a window frame welding by a manual operation according to an embodiment of the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a perspective view of an automatic welding device according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the automatic welding device according to an embodiment of the present invention, Figure 3 is an automatic welding according to an embodiment of the present invention 4 is a plan view of an automatic welding device according to an embodiment of the present invention, FIG. 5 is a side view of an automatic welding device according to an embodiment of the present invention, and FIG. 6 is an embodiment of the present invention. 7 is a side view of the guide roller unit according to an embodiment of the present invention, FIG. 8 is a perspective view of a trekking sensor unit according to an embodiment of the present invention, and FIG. 9 is an embodiment of the present invention. 10 is a plan view of a trekking sensor unit according to an example, FIG. 10 is a side view of a trekking sensor unit according to an embodiment of the present invention, and FIG. 11 is an exemplary view illustrating an operation principle of a trekking sensor unit according to an embodiment of the present invention.

As shown, the present invention has a welding apparatus main body 1 having a plurality of driving wheels 11 whose driving speeds are individually controlled. The drive wheel is configured to be powered independently by an independent motor or by a combination of shafts and gears, each of which is powered from one motor. Since this independent power transmission principle is a general power transmission technology, a detailed structure is omitted.

An X-axis slide composed of an X-axis screw 212 on the upper portion of the welding device main body 1 to linearly move the X-axis slide block 211 in the X-axis direction (horizontal direction) by the rotation of the manual handle 213 ( 21) and a Y-axis slide consisting of a Y-axis slide block 221 installed in the X-axis slide block by the Y-axis screw 222 which linearly moves in the Y-axis direction (vertical direction) by the rotation of the manual handle 223 ( The manual XY axis slide 2 which consists of 22) is provided.

Specifically, the X-axis slide block 211 is installed on the rail support portion 23 which is bolted and directly contacted with the welding apparatus main body 1, one end of the rail support portion 23 is bent upwards to the X axis A stopper 231 for screwing with the screw 212 is formed, and a rail 232 for sliding the X-axis slide block 211 is formed on the upper surface of the rail support 23.

The Y-axis slide block 221 is inserted into the X-axis slide block 211 having an empty space formed inside and part of one side is open to the torch to rotate the Y-axis slide block 221 by the manual handle It is configured to raise and lower the adjustment automatic slide (3).

The torch adjustment automatic slide 3 fastened to the Y-axis slide block 221 is coupled to the torch adjustment X-axis rail 31 directly coupled to the Y-axis slide block 221 and the torch adjustment X-axis rail 31. It comprises a torch adjusting X-axis block 32 that linearly moves, and a motor 33 that transmits power to transmit the driving force to the torch adjusting X-axis block 32 so as to advance back and forth on the torch adjusting X-axis rail 31. . The control of the motor is controlled by the controller. At this time, between the torch adjustment X-axis rail 31 and the torch adjustment X-axis block 32 may be configured in the form of forward and backward by the gear coupling. That is, it is configured to transmit the rotational force of the motor through the rack and pinion coupling or other gear coupling. Power transmission by such a gear coupling is a general thing, so a specific configuration is omitted. The operation principle of the automatic torch adjustment slide 3 is to control the motor 33 so that the controller controls the optimum position of the welding torch portion according to the change of the distance from the trekking sensor portion to the curved portion and the straight portion of the metal frame constituting the window frame to be welded. By rotating, the torch adjustment X-axis block 32 is advanced back and forth.

In addition, the torch clamp 34 is installed at the front end of the torch adjustment X-axis block 32 so that the welding torch 4 is detachable. The detachable method may be used in various ways, but may be in the form of a torch clamp 34 formed to be inclined so that the welding torch can approach the metal frame to be welded. For reference, the fixing method according to the embodiment may be a method of contact pressurizing the welding torch inserted into the fastener of the torch fixing unit by screw rotation.

Guide rollers 5 are fastened to both side surfaces of the welding device body 1, respectively. The guide roller portion is a guide arm 51 protruding from the welding device body 1 toward the window frame, a clamping guide bracket 52 provided at the end of the guide arm, and a pair of rollers provided below the clamping guide bracket 52. It is composed of 53, one of the pair of rollers are installed on the inside of the metal frame and the other outside of the metal frame to guide the shape of the metal frame so that the welding apparatus main body 1 runs.

The trekking sensor unit 6 is provided to connect across the end portions of the guide rollers 5 respectively provided on both side surfaces of the welding apparatus main body 1, so that the shape of the metal frame constituting the window frame is curved or straight. Will be detected.

The configuration of the trekking sensor unit 6 is a trekking arm 61 coupled to both guide rollers 5 and a trekking couple coupled to one side of the center of the trekking arm 61, that is, the welding apparatus main body 1 direction. The sensor housing 62 and a rack gear shaft 63 which is installed to penetrate the inside of the trekking sensor housing and has a tracking roller bracket 631 formed at one end thereof, and a spring fastened to the rear end of the rack gear shaft 63. Spring 65 is inserted into the support shaft 64, the spring support shaft 64, the one side is supported by the trekking sensor housing 62, and always presses the rack gear shaft 63 located on the other side, and the rack gear shaft A tracking roller 66 coupled to the tracking roller bracket 631 formed at one end of the 63 and always in contact with the metal frame of the window frame, and the rack gear shaft 63 and the blood inside the tracking sensor housing 62. Ion gear 671 is coupled to change the window according to the rotation of the pinion gear For sensing the change in distance between the border it consists of a potentiometer (Potentio meter, 67).

The operation of the tracking sensor unit configured as described above will be described with reference to FIG. 11. By the elasticity of the spring 65, the tracking roller 66 is always on the inner side of the metal frame constituting the window frame, which is a welding member (the opposite side of the welding portion). ) For this reason, when the shape of a welding member changes, the tracking roller 66 which contacts the welding member will move like the arrow shown by the spring 65. FIG.

In addition, the rotation of the pinion gear is generated when the movement of the configured rack gear type shaft 63 coupled to the body by the change of the tracking roller 66 occurs.

When the pinion gear 671 rotates, the axis of the potentiometer 67 engaged with it rotates. When the measured value is changed, the controller recognizes the changed value and automatically converts the signal of the changed value to the X-slide torch. The welding torch is moved to a torch adjusting auto slide, which results in the welding torch moving constantly along the weld line.

Likewise, if the tracking roller moves in the opposite direction, the welding torch will also move along its value, i.e. the torch with the welding torch fixed in accordance with the movement of the tracking roller whenever the drive selection switch is in automatic mode. The adjusting automatic slide is configured to move in conjunction.

The controller 7 is provided on one side of the upper surface of the welding device main body 1 to linearly move the torch adjustment auto slide 3 according to the distance change information input from the potentiometer 67 to the torch clamp 34. The installed welding torch 4 is moved.

At this time, the reference point is controlled with reference to the position of the torch adjustment automatic slide 3, the welding torch is initially set.

At the same time, the controller adjusts the speed of the driving wheel 11 constituting the welding apparatus main body 1 so that the speed of the driving wheel far from the window frame is different from that of the driving wheel located close to the window frame. As curvature travels smoothly in the part, the welding bead is prevented from being thickened, thereby improving the welding quality. That is, when all the driving wheels move at the same speed as the straight part, the weld bead due to the delay in the curved part accumulates and becomes thick.

12 is an exemplary view showing a straight portion and a curved portion of the automatic welding device according to an embodiment of the present invention, the automatic welding device of the present invention configured as described above is a metal projecting 5 ~ 7mm around the glass constituting the window frame The free movement function of the roller constituting the guide roller part while traveling along the rim allows continuous running without interruption in the straight part and the corner part.

In particular, the controller automatically adjusts the driving speed of the straight line and the corner part based on the information input from the trekking sensor, thereby enabling the automatic driving of the minimum radius when driving the curve. In the curved portion, the rear driving wheel 11 rotates faster than the front driving wheel 11 so that the weld bead having a uniform thickness is formed between the fillet weld between the metal rim and the hull contact surface.

In addition, the torch position is automatically controlled at the same time as the automatic driving, and the arc points of the straight line and the corner part are automatically adjusted so that welding is completed in one time without interruption of welding.

For reference, the traveling speed of the straight portion according to the embodiment is 600mm / minute, the running speed of the corner portion is 1000mm / minute. As a result, in the case of window frame with 450 450 500mm, 500 ㅧ 800mm and curvature of curvature of about 125.5R, welding is completed in 4 ~ 5 minutes.

As such, once the automatic driving and automatic welding is made, one time welding is sufficient and the welding bead is uniform so that no separate finishing work is required.

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 invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
(1): Welding device body (2): Manual XY axis slide
(3): Automatic torch adjustment slide (4): Welding torch
(5): guide roller part (6): trekking sensor part
(7): controller (11): drive wheel
(21): X-axis slide (22): Y-axis slide
(23): Rail support part 31: Torch adjustment X axis rail
(32): Torch adjustment X-axis block (33): Motor
(34): torch clamp 51: guide arm
(52): Clamping Guide Bracket 53: Roller
(61): trekking arm (62): trekking sensor housing
(63): rack gear shaft 64: spring support shaft
(65): spring (66): tracking roller
(67): Potentiometer (211): X-axis slide block
(212): X-axis screw (213): Manual handle
(221): Y-axis slide block (222): Y-axis screw
(223): Manual Handle (231): Stopper
(232): Rail 631: Tracking Roller Bracket
(671): Pioneer Gear

Claims (5)

A welding device body 1 having a plurality of driving wheels 11;
Y-axis slide 22 which raises and lowers the X-axis slide 21 provided in the rail support part 23 coupled with the upper part of the welding apparatus main body 1, and the torch adjustment automatic slide 3 provided in the X-axis slide 21. A manual XY axis slide (2);
A torch adjustment automatic slide (3) installed on the Y-axis slide (22) for advancing and welding the welding torch (4);
A welding torch 4 mounted on the torch clamp 34 of the automatic torch adjustment slide 3;
Guide roller parts 5 which are fastened to both sides of the welding device main body 1 and guide the running of the welding device main body by rollers 53 engaged with the window frame edges;
A trekking sensor unit 6 installed across the guide roller units 5 to detect a shape of a metal frame constituting the window frame;
A controller (7) installed on the welding device main body (1) to adjust the forward and backward distance of the torch adjustment automatic slide (3) and the speed of the driving wheels (11) according to the measurement information of the trekking sensor unit (6); Cabin window frame automatic welding device, characterized in that.
The method according to claim 1,
The plurality of drive wheels (11) is a cabin window frame automatic welding device, characterized in that configured to be controlled by the controller (7) so that the drive wheel farther away than the drive wheels closer to the window frame in the curve portion.
The method according to claim 1,
The guide roller part includes a guide arm 51 protruding from the welding device body 1 toward the window frame, a clamping guide bracket 52 installed at the end of the guide arm, and a pair of rollers installed below the clamping guide bracket 52. Cabin window frame automatic welding device, characterized in that consisting of (53).
The method according to claim 3,
Cabin window frame automatic welding device, characterized in that one of the pair of rollers is installed on the inside of the metal border and the other one of the outer side of the metal border is guided according to the shape of the metal border, so that the welding device body (1) is configured to run.
The method according to claim 1,
The trekking sensor unit 6 includes a trekking arm 61 coupled to both side guide rollers 5; A trekking sensor housing 62 coupled to the trekking arm 61; A rack gear type shaft 63 installed through the inside of the trekking sensor housing and having a tracking roller bracket 631 formed at one end thereof; A spring support shaft 64 fastened to the rear end of the rack gear shaft 63; A spring (65) inserted into the spring support shaft (64), the one side of which is supported by the trekking sensor housing (62) and always presses the rack gear shaft (63) located on the other side; A tracking roller 66 coupled to the tracking roller bracket 631 and in contact with the window frame; A pinion gear 671 geared to the rack gear shaft 63; Cabin window frame automatic welding device, characterized in that consisting of ;; potentiometer (67) for detecting a change in distance from the window frame edge by the change according to the rotation of the pinion gear.

Images