JP2662210B2 - 3D curved surface automatic welding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional curved surface welding apparatus configured to enable automatic welding of a three-dimensional curved surface of a bow and stern of a ship.

[0002]

2. Description of the Related Art Conventionally, at the time of constructing the bow and stern of a ship, the angles formed for each part of a base material and a reinforcing material formed on a three-dimensional curved surface are not constant, and automatic welding cannot be performed due to other obstacles and the like. It is possible, and the welding operator welds the bow and stern of each base material and reinforcement manually, so the construction period is delayed and welding productivity is low. was there.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problem, that is, an element which cannot perform automatic welding corresponding to a three-dimensional curved surface, and is capable of performing automatic welding.

[0004]

According to the present invention, a walking angle (lateral angle) of a welding torch is automatically corrected in accordance with a change in an angle formed by a base material (main plate) and a reinforcing material, and the correction is made at a welding start point and an end point of a welding line. Welding work is automatically performed without a non-welding area by detecting the unwelded part generated by the sensor and using a torch correction table drive ball screw, and the optimal welding of the tip of the welding wire and the welding line (the point where the base material meets the reinforcing material) is performed. To maintain the distance (arc point) for the cross bead (Cross bead) and scallop (Scal)
The welding apparatus of the present invention can detect a failure structure during welding such as lop) and perform a corresponding welding.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the construction of the present invention. Welding machine main body 1 driven by running rollers 11, 11 ', torch correction table 2 which is moved left and right within welding machine main body 1 by torch correction table driving ball screw 21, and vertical driving ball screw by torch adjusting unit 3. The torch adjustment plate 34, which is driven by driving the torch 32 by the clamp 33, is moved between the angle moving guide 35 and the distance moving guide 36 by the angle adjusting rollers 37, 3.
Means for adjusting the angle and distance of the torch 32 with 7 ', 37 "and a distance adjusting slider 38; and guide rollers 4, 4'.
Fiber optic sensors 5, 5 'and guide roller 4 at both ends
At the rear end, a laser sensor 6 is attached to guide bars 7, 7 'extended from the torch correction table 2, and the guide roller line and the torch correction table drive ball screw line are angled from the welding machine body 1 by 0 to 5 °. And a means for tracking the welding line.

Reference numeral 8 denotes a welding machine hanger, 9 denotes a welding machine cable carrier, 10 denotes a running roller protector, and 12 denotes a welding arc protector. The present invention having the above-described structure is capable of guiding the welding machine body 1 to the base material when performing welding of the base material and the reinforcement formed by the three-dimensional curved surface of the bow and stern of the hull. Align the rollers 4, 4 'line with the welding line, that is, the corner where the base material and the reinforcing material meet, torch 32
Running roller 1 is positioned at the center of
Before driving 1, 11 ', the optical fiber sensor 5' detects the welding start point in the preceding step, and the driving ball screw 21 is moved backward by the driving ball screw driving unit, so that the welding torch 32 is positioned at the welding start point. Welding work is performed while the ball screw 21 advances, and the welding machine body 1
When the driving ball screw 21 is stopped, the traveling rollers 11, 11 'are driven at the same time, and welding is performed.

At this time, the laser sensor 6 always detects the distance at which the reinforcing material is located, converts the angle (usually 90 ° ± 10 °) formed by the reinforcing material of the base material, drives the torch adjusting unit 3, and moves the torch adjusting unit 3 up and down. When the driving ball screw 31 is operated, the angle adjusting rollers 37 of the torch adjusting plate 34,
37 ', 37 "and distance adjustment sliders 38 having different curvatures, respectively.
Therefore, the torch can be welded corresponding to a three-dimensional curved surface while maintaining the optimum angle (upper angle of 33 to 43 degrees, lower angle of 47 to 57 degrees based on 90 degrees) and the optimum distance (0 to 5 mm). The running rollers 11, 11 'are driven while maintaining the running roller line inclined at 0 to 5 degrees inward with respect to the welding line guide roller line and the torch correction table driving screw line. Problem is solved.

When welding the cross bead and the scallop, which is a welding obstacle, when the lower sensor of the welding machine body 1 detects the cross bead, the torch 32 interrupts the welding and only the traveling rollers 11, 11 'are welded. Drive
When passing the cross bead, the torch correction table driving ball screw 21 is operated to move backward to the non-welding distance to perform continuous welding, and when the torch 32 is located at the center of the welding machine main body 1, the driving ball screw 21 is stopped and travels. The rollers 11 and 11 'are driven to perform welding, and the scallop generation point is determined by stopping the running rollers 11 and 11' when the optical fiber sensors 5 located at both ends of the guide rollers 4 and 4 'detect scallop. As a result, the torch correction table drive ball screw 21 is operated to advance by the distance between the optical fiber sensor 5 and the torch 32 to perform welding.

Then, the welding wire of the torch 32 meets the scallop, and the driving ball screw 2
1 stops and the welding is stopped, and the running rollers 11, 11 'are stopped.
Is driven to drive the scallop, the torch 32 is positioned at the center of the welding machine body 1 and welding is continuously performed. When the end point of welding is detected by the optical fiber sensor 5 during welding, the driving roller 11 is stopped, and at the same time, the drive ball screw 21 is operated to move the torch 32 to the front side of the front traveling roller, so that there is no unwelded portion. Welding can be completed.

The apparatus for automatically adjusting the welding angle and the welding distance to the optimum state according to the present invention uses guides having different curvatures by operating a single motor as the torch adjustment plate moves up and down according to the up and down ball screws. The automatic welding is performed in accordance with the three-dimensional curved surface by correcting the angle and the distance. Therefore, the present invention automates three-dimensional curved surface welding, which has been dependent on manual work, and corrects the changes in the base material and the reinforcing material under optimum welding conditions, has a large effect on welding obstacles, and has a large working efficiency. This has the effect of improving the welding time and shortening the construction period of the ship, and can dramatically improve welding productivity and quality.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of the present invention.

FIG. 2 is a side structural view showing a main configuration of the present invention.

FIG. 3 is a plan view showing a main configuration of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Welding machine main body 2 Torch correction table 3 Torch adjustment unit 4, 4 'Guide roller 5, 5' Optical fiber sensor 6 Laser sensor 7, 7 'Guide bar 11, 11' Running roller 21 Torch correction table drive ball screw 31 Vertical drive Ball screw 32 Torch 33 Clamp 34 Torch adjusting plate 35 Angle moving guide 36 Distance moving guide 37, 37 ', 37 "Angle adjusting roller 38 Distance adjusting slider

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kim Hyun-Sik South Korea Kyunnam Ulsan-Shi Dong-K Seobu-Dong 100-6 Junggan Apartment 3-306 (72) Inventor U Sang-Kyu South Korea Kyunnam Ulsan-Shi Dong -Gwanghwa-dong 1 Nok Sukwan 2 Dong 306 (72) Inventor Kwon Hook-Joon South Korea Kyungnam Ulsan-Shi Dong-ku Jaeongha-3 Dong 659 Ilsan apartment 33-202 (72) Inventor Choi Ju-Ho South Korea Kyungnam Ulsan -Shi Dong-Kwajeong-Dong 149-1 Kumcan Apartment 202-303

Claims (1)

(57) [Claims] 1. A welding machine body (1) driven by traveling rollers (11) and (11 '), and a torch correction table drive is moved left and right in the welding machine body (1) by a ball screw (21). The vertical drive ball screw (3) is connected to the torch correction table (2) and the torch
By driving 1), the torch adjusting plate (34) holding the torch (32) with the clamp (33) is moved between the angle moving guide (35) and the distance moving guide (36) by the angle adjusting rollers (37), ( 37 '), (37 ") and means for automatically adjusting the angle and distance of the torch (32) by the distance adjustment slider (38) by detecting the laser sensor (6), and the guide rollers (4), (4'). The fiber optic sensors (5) and (5 ') are extended from the torch correction table (2) at both ends and mounted on the guide bars (7) and (7'), and the guide roller line and the torch correction table drive ball screw are mounted. Line is 0-5 ° with welding machine body (1)
A three-dimensional curved surface welding apparatus characterized in that it is a means for forming an angle at a predetermined angle and tracking a welding line.