KR950004520B1 - Automatic welding machine for lng ship - Google Patents

Abstract

The automatic welder improves the productivity by reducing welding defects due to the automatic welding even in narrow and small places. The automatic welder comprises (A) clamping devices (10,10') in the side of sliding beam (18); (B) welding torch (54), rollers (60,64) and fixture (36) placed in the lower position; (C) timing belt (14) assembled with bolt (66) on the both sides of carriage (22); and (D) main shaft gear (16') in the motor (16) and limit switch (12,12') before the clamping device.

Description

LNG Welding Machine

1 is a side view schematically showing the overall configuration of the present invention.

Figure 2 is a cross-sectional view taken along the line A-A of Figure 1 showing the working state of the present invention.

3 is an enlarged side view showing a state in which a timing belt is fastened to a carriage.

4 is a side view showing a structure in which the carriage is fixed to the sliding beam.

5 is a plan view showing a knob operating state of FIG.

Figure 6 is an assembly cross-sectional view showing the left, right adjusting knob of the welding torch.

Figure 7 is an assembly cross-sectional view showing the upper and lower adjustment knob of the welding torch.

8 is an assembly cross-sectional view showing a roller fixing structure.

9 is an exemplary view showing an operating state of the roller and the welding torch.

* Explanation of symbols for main parts of the drawings

10,10 ': Clamping device 12,12': Limit switch

14: timing belt 16: motor

16 ': Motor spindle gear 18: Sliding beam

20,20 ': guide rail 22: carriage

24,24 ': Roller 28: Knob

32: fixing bolt 36: holder

38: knob fixing 40: up and down adjustment knob

42: axis 48: tochigo station

50: left, right adjustment knob 54: welding torch

60: pressure roller 64: guide roller

66: fastening bolt

The present invention relates to an automatic welding machine for LNG ships used in a narrow space during ship construction, and in particular, welding members (anchoring strip, invar tube (invar) in a cargo tank during membrane type LNG carrier construction). tube and anchoring bar, etc.) are installed with the upper and lower control knobs and the left and right control knobs and a plurality of springs of the roller and welding torch to weld the sliding beam along the welding member. The present invention relates to an automatic welding machine for LNG ships, which can efficiently perform welding work in a narrow space by using an automatic welding machine.

In general, when welding manually in a narrow space, the operator cannot take enough work posture to perform the welding work, the welding work is not performed correctly, resulting in a poor welding state, thereby reducing the productivity In addition, since the worker must weld with the welding machine in a narrow space, there have been various problems such as the risk of safety accidents caused by unsafe working environment.

Therefore, the present invention has been made in order to improve the above-mentioned problems, narrowed by using an automatic welding machine installed with a knob and a spring in the carriage so that the welding torch can be transferred along the sliding beam provided with the limit switch at both ends. It is an object of the present invention to improve the welding quality and to prevent safety accidents during welding work because the welding work is performed by the button operation of the control box without the operator directly working in the space.

Hereinafter, described in detail by the accompanying drawings of the present invention.

1 is a side view schematically showing the configuration of the present invention, the clamping device (CLAMPING DEVICE) (10, 10 ') is fixed to both sides of the sliding beam (18) to match the welding line 68 In the lower part, the welding torch 54, the rollers 60, 6 4 and the fixing stand 36 are installed, and the timing bolt 14 is provided with fastening bolts 66 at both ends of the carriage to convey the carriage 22. And the timing belt 14 is connected to and supported by the motor spindle gear 16 'of the motor 16 to transmit power, and the limit switch 12, immediately before the clamping device 10, 10'. 12 ') is provided to determine the conveying range of the carriage (22).

2 is a cross-sectional view taken along line AA of FIG. 1 showing a working state of the present invention, in which a carriage 22 is installed below the sliding beam 18, and one side of the carriage 22 has the welding torch 54 up and down. The upper and lower adjustment knobs 40 for adjusting are inserted and installed in the holder 36, and the holders 36 with rollers 60 and 64 and the welding torches 54 installed thereon are supported by the springs 46 and the welding torches. The end of the 54 is located in one side direction of the rollers 60 and 64 by the left and right adjustment knobs 50.

3 is an enlarged side view showing a state in which a timing belt is fastened to both ends of the carriage, and the carriage 22 transmits power by fastening the timing belt and the carriage 22 with the fastening bolts 66 at both ends of the carriage 22. Receive.

4 is a cross-sectional view illustrating a structure in which the carriage is fixed to the sliding beam, and circular guide rails 20 and 20 'are installed at both sides of the lower portion of the sliding beam 18, and rollers are provided at the carriage 22 at the corresponding positions. 24, 24 ') is engaged. The roller 24 'on one side is fixedly installed by the bolt 26, and the other roller 24 is fixedly installed by the knob 28, and the knob 28 is fixed by the fixing pin 30 and the roller ( 24 and 24 'are installed to reciprocate along the guide rails 20 and 20'. In addition, the carriage 22 and the fixing stand 36 are fixed to the fixing bolt 32 at the lower portion, and the carriage 22 and the fixing stand. The spring 34 is installed between the 32 so that the fixing table 36 is elastically fixed to the carriage 22.

5 is a plan view showing the operating state of the knob of Figure 4, the roller 24 is fixed to the guide rail 20 is installed so as to move away from or fixed to the guide rail 20 by rotating the knob 28.

6 is an assembly cross-sectional view showing the left and right adjustment knobs of the welding torch, the welding torch 54 in one side of the torch fixing stand 48, the spring 56 on one side, the fixing projection 52 is formed on the other side, It is provided by the right adjustment knob (50).

7 is an assembled cross-sectional view showing the upper and lower adjustment knobs of the welding torch, the torch fixing rod 48 is fixed to the shaft 42 by the spring 44 to the knob fixing 38 to enable the upper and lower flow. The upper and lower adjusting knob 40 is installed in the knob fixing stand 38 to the fixing stand 36 so that the ends of the upper and lower adjusting knob 40 are closely attached to the shaft 42. In addition, the spring 46 is inserted between the torch fixing 48 and the fixing 36 so that the fixing plate 36 is elastically installed on the fixing 36.

8 shows a structure in which the pressure roller and the guide roller are installed, and the pressure roller 60 for closely contacting the two welding members is attached to the weight 58 by the bolt 62 to be in close contact with the upper member. The guide roller 64, which is rotatably fixed and guides the welding line, is inclined at an angle and fixed to the inclined portion of the weight 58 by bolts.

9 is an exemplary view showing the operating state of the pressure roller, the guide roller and the welding torch, the pressure roller 60 presses the two members in close contact with each other, the guide roller 64 is in close contact with the side of the upper member By guiding the welding line (68: WELDING LINE), the welding torch 54 is transferred to the back of the conveying direction is to be welded.

Referring to the operation according to the installation and use of the present invention made as described above are as follows.

After setting welding parts of the welding members to match the aluminum sliding beam 18 to the welding range, the beams are fixed by the clamping devices 10 and 10 '. Next, the timing belt 14 is fastened to both ends of the lower part of the carriage 22 by the fastening bolt 66, and the welding machine is attached to the sliding beam 18. As shown in FIG.

The timing belt 14 is driven by being engaged with the main shaft gear 16 'of the motor 16, and is engaged with the carriage 22 to move it. In addition, the guide rail 20 of the sliding beam 18 is fixed to the lower side of the carriage 22, the welding torch 54, the pressing roller 60, and the guide roller 64, which is provided with welding, are fixed. 20 ') to perform welding work along the slide.

Here, the welding line of the welding torch 54 is adjusted left and right using the left and right adjusting knobs 50, and the upper and lower adjusting knobs 40 installed on the fixing table 36 are used to adjust the upper and lower welding lines. The pressure roller 60 installed at the lower side of the lower adjustment adjusts the welding member closely downward by the weight of the weight 58 and the spring 46, and the guide roller 64 and the spring 34 are welded. Guide the weld line accurately and closely along the side of the member. That is, since the guide 36 is supported by the spring 34 on the carriage 22, the reaction force in the lateral direction acts so that the guide roller 64 is always in close contact with the upper side of the welding member, thereby guiding the separation. .

When the welding operation is performed and the welding machine moves to one end of the beam to connect with the limit switches 12 and 12 ', the operation is completed. When the operation is completed, the motor 16 rotates in reverse to return to the original position. In order to separate the carriage 22 from the sliding beam 18, the carriage 22 is separated from the carriage 22 by rotating the knob to separate the roller 24 from the guide rail.

When explaining the effect of the present invention according to the above-described configuration, the welding operation in a narrow space is installed on the sliding beam by the motor and the timing belt to enable the carriage to reciprocate, and on one side of the carriage, the upper and lower adjustment knobs and the left The right adjustment knob and the two rollers and the fixture to which the welding torch are fixed are installed with springs so that the carriage can be welded while the carriage reciprocates along the sliding beam, so that the operator does not work directly in a narrow space. The welding work is performed by using an automatic welding machine, so that the welding work is robust and accurate, and thus the productivity is improved, and the effect of preventing the occurrence of safety accidents by removing the unsafe elements of the working environment is obtained.

Claims (4)

An aluminum sliding beam 18 is installed in the two clamping devices 10 and 10 'provided with limit switches 12 and 12' which limit the welding section on both sides, thereby transmitting power by driving the motor 16. An automatic welding machine for LNG ships which can be moved left and right by a timing belt (14) comprising: a carriage (22) installed in the sliding beam (18) so as to be movable left and right; Up and down adjustment knobs 40 for finely adjusting the welding torch 54 up and down are installed, and a fixing bolt 32 and a spring 34 are installed on the carriage 22 so that reaction forces act in one direction. 6); A welding torch 54 is inserted into the lower part and the left and right adjusting knob 50 is installed to finely adjust the left and right, and the torch fixing stand 48 supported by the spring 46; And a weight roller 60 for pressing two welding members welded from the lower side and a weight 58 provided by bolts 62 and 66 with a guide roller 64 for guiding a welding line. Combined with the motor 16 and the timing belt 14, the automatic welding machine for LNG ships, characterized in that the installation is configured to move left and right along the sliding beam (18). According to claim 1, The carriage 22 is fastened to the timing belt 14 by the fastening bolt 66 at both ends, and the circular guide rails (20, 20 ') on both sides of the lower portion of the sliding beam (18) The rollers 24 and 24 'are installed in a shape and a position corresponding thereto, and the rollers 24' are fixed to the bolts 26 and the other rollers 24 are rotated to the knobs 28 by the guide rails. 20 is fixedly installed so as to be detachable, and the knob 28 is fixed by the fixing pin 30 so that the rollers 24 and 24 'slide along the guide rails 20 and 20' so that the carriage 22 Automatic welding machine for LNG ship, characterized in that installed so as to be able to move left, right. The upper and lower control knobs 40 are in close contact with the shaft 42 so as to be movable up and down by rotating the upper and lower adjusting knobs 40. Spring 44 is installed so that the reaction force acts in the upward direction, the automatic welding machine for LNG ships, characterized in that the spring 46 is inserted between the tochigo anchor 48 and the fixed base 36 so that the reaction force acts in the downward direction . According to claim 1, The torch fixing stand 48 is one side of the welding torch 54 is supported by the spring 56 fitted to the left, right adjusting knob 50, the other side of the welding torch 54 is left and right. The movement is limited by the fixing protrusion 52 of the adjustment knob 50, the welding torch 54 is installed for the LNG ship, characterized in that the left and right movement adjustable by the rotation operation of the left, right adjusting knob 50. welding machine.