Welding device and method for corrugated plates of MARKIII type containment system

Abstract

The invention discloses a welding device and method for a corrugated plate of a MARKIII type enclosure system, and the welding device comprises a corrugated section clamp which is of an inverted U-shaped structure and comprises a horizontal plate and two vertical side plates, and the vertical side plates of the corrugated section clamp are provided with clamping grooves corresponding to corrugated sections in shape. And the connecting rod is connected with the corrugated section clamp horizontal plate and extends out of the corrugated section clamp horizontal plate. The cushion block is arranged at the tail end of the connecting rod. The rail is connected to the tail end of the cushion block and is perpendicular to the connecting rod. The welding device can move by 360 degrees in the horizontal direction and is matched with an automatic corrugated plate welding machine, a specific welding sequence is applied, and the purposes that all corrugated plates in all positions of a real ship can be welded through the automatic welding machine, and the production efficiency is improved are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a full-position automatic welding device and method for a MARK III type containment system corrugated plate. Background Art

[0002] The work of corrugated plate welding of MARKIII cargo tank containment system has always been a difficult point in the construction of the entire containment system. The corrugated plate welding work is the work with the largest workload, the highest requirements and the longest working cycle. Due to the limitation of the hull, the corrugated plates in many corner areas need to be cut. They are not of standard size, which makes it impossible to use automatic welding machines for welding in these areas. Then the manual welding cycle is longer, the skill level required is higher, and the defect rate is also higher than that of automatic welding. Therefore, it is particularly important to realize the automatic welding of special corrugated plates in the corner areas. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a full-position automated welding device and method for the corrugated plate of the MAEKIII type enclosure system, which can greatly shorten the entire corrugated plate welding construction period, reduce the defect rate, and improve the welding efficiency and quality.

[0004] The object of the present invention is achieved through the following technical solutions: a welding device for a MARK III type enclosure system corrugated plate, comprising:

[0005] The corrugated section clamp is an inverted "concave" structure, comprising a horizontal plate and two vertical side plates. The vertical side plates of the corrugated section clamp are provided with a slot corresponding to the shape of the corrugated section.

[0006] The connecting rod is connected to the horizontal plate of the corrugated section clamp and extends out of the horizontal plate of the corrugated section clamp.

[0007] A spacer block is arranged at the end of the connecting rod.

[0008] The track is connected to the end of the pad and is perpendicular to the direction of the connecting rod.

[0009] Preferably, the connecting rod is connected to the bellows section clamp via a rotatable shaft.

[0010] Preferably, the length of the connecting rod is adjustable.

[0011] Preferably, the cushion block is made of stainless steel.

[0012] In addition to providing a welding device for a MARK III type enclosure system corrugated plate, the present invention further provides a method for welding a MARK III type enclosure system corrugated plate using the welding device, and the specific steps are as follows:

[0013] Step S1, measuring the hull area value, calculating the size of the boundary corrugated plate, and processing and cutting the boundary corrugated plate during the prefabrication process;

[0014] Step S2: Before installing the corrugated plate, check the processing status of the boundary corrugated plate, and spot weld and process the gap in sequence along the length direction of the corrugated plate during installation;

[0015] Step S3, connect the welding device to the corrugated section, fix the head of the automatic welding machine to the welding device, and then rotate the track to a position where the automatic welding machine can weld according to the actual size of the on-site boundary corrugated plate to perform automatic welding.

[0016] Preferably, in step S2, the installation gap is controlled within 0.3 mm.

[0017] Preferably, in step S3, the welding of the boundary corrugated plate follows the following rules:

[0018] For the corrugated plates located on the port and starboard areas of the ship, weld the seams in the direction of the ship's length first, then weld the seams perpendicular to the direction of the ship's length. For the corrugated plates in the bow and stern areas, weld the seams in the direction of the ship's width first, then weld the seams perpendicular to the direction of the ship's width.

[0019] At the intersection of multiple corrugated plates, first perform manual welding and then automatic welding;

[0020] The corrugated plate welds at the connector positions should be automatically welded after the connectors are installed.

[0021] Preferably, in step S3, the method of connecting the welding device to the bellows section is as follows:

[0022] Step 1: Check whether there is any damage on the bellows joint. After confirming that there is no damage, install the bellows joint fixture;

[0023] Step 2: Install the pads, and use a level ruler and tape measure to measure the height and flatness of the corrugated section fixture after installing the pads;

[0024] Step 3: Install the connecting rod and test whether the rotation range can meet the welding requirements. If the rotation radius does not meet the welding requirements, replace the connecting rod with a suitable length.

[0025] Step 4: Install the welding track and measure the flatness of the track again. After confirming that it is correct, install the welding head for welding.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] The present invention provides a welding device and method for the corrugated plates of the MARK III enclosure system. By measuring the hull, the size of the boundary corrugated plates is calculated in advance, and the conventional corrugated plates are cut during the prefabrication process (usually, they are manually cut according to the actual size during on-site installation) to achieve the installation size of the boundary corrugated plates we need. Then, an automatic welding track that can move 360° horizontally is used in conjunction with a corrugated plate automatic welding machine. By using a specific welding sequence, all corrugated plates in all positions of the actual ship can be welded using an automatic welding machine, thereby improving production efficiency. The device and method provided by the present invention are simple to operate and have high welding efficiency. By using this method, an automatic welding machine can be used to weld corrugated plates of various special sizes, thereby reducing the entire construction period and improving welding quality.

[0028] By using the corrugated plate welding device provided by the present invention, the originally relatively fixed track can be rotated 360 degrees in the horizontal direction, so as to achieve the purpose of using the automatic machine for welding under various complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a welding device for a MARK III type enclosure system corrugated plate in an embodiment of the present invention;

[0030] Figure 2 Schematic diagram of a corrugated plate to be welded in an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of calculation results of the boundary corrugated plate in an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the connection relationship between the welding device and the corrugated section in an embodiment of the present invention.

[0033] In the figure, 1 is a bellows joint clamp; 2 is a connecting rod; 3 is a cushion block; 4 is a bellows joint; and 5 is a rotatable shaft. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] like Figure 1 As shown, the technical solution of the present invention provides a welding device for a MARKIII type enclosure system corrugated plate, characterized in that the welding device comprises:

[0036] The corrugated section fixture 1 is an inverted "concave" structure, including a horizontal plate and two vertical side plates, and the vertical side plates of the corrugated section fixture 1 are provided with a slot corresponding to the shape of the corrugated section 4;

[0037] A connecting rod 2 is connected to the horizontal plate of the corrugated section fixture 1 and extends out of the horizontal plate of the corrugated section fixture 1;

[0038] A cushion block 3 is arranged at the end of the connecting rod 2;

[0039] The track is connected to the end of the pad 3 and is perpendicular to the direction of the connecting rod 2.

[0040] In one embodiment of the present invention, the connecting rod 2 is connected to the corrugated joint clamp 1 through a rotatable shaft 5. In this embodiment, the connecting rod 2 can be rotated 360 degrees in the horizontal direction. In this embodiment, the rotatable shaft 5 can be installed and disassembled as needed, and whether it needs to be installed can be selected according to the welding position.

[0041] In one embodiment of the present invention, the length of the connecting rod 2 is adjustable. In this embodiment, the connecting rod 2 of different lengths can be replaced according to the size of the corrugated plate to be welded on site to increase or decrease the rotation radius to meet the welding requirements under different working conditions.

[0042] In one embodiment of the present invention, the cushion block 3 is made of stainless steel. In this embodiment, the entire tooling is made of 304 stainless steel and aluminum alloy, which is strong and durable, simple and light, and easy to construct.

[0043] In addition to providing a welding device for a MARK III type enclosure system corrugated plate, the technical solution of the present invention further provides a method for welding a MARK III type enclosure system corrugated plate using the welding device, and the specific steps are as follows:

[0044] Step S1: Figures 2 to 3 As shown, the hull area is measured, the size of the boundary corrugated plate is calculated, and the boundary corrugated plate is processed and cut during the prefabrication process (compared with the existing conventional operation of manual cutting by construction personnel according to the on-site size, the straightness and installation gap of the boundary corrugated plate can be greatly improved, creating favorable conditions for automated welding;

[0045] Step S2: Before installing the corrugated plate, check the processing status of the boundary corrugated plate, and spot weld and process the gap in sequence along the length direction of the corrugated plate during installation;

[0046] Step S3, connect the welding device to the corrugated section, fix the head of the automatic welding machine to the welding device, and then rotate the track to a position where the automatic welding machine can weld according to the actual size of the on-site boundary corrugated plate to perform automatic welding.

[0047] In one embodiment of the present invention, in step S2, before installing the corrugated plate, the processing status of the boundary corrugated plate should be checked first (whether there is deformation, burrs, etc.). During installation, the corrugated plate should be spot welded and the gap processed in sequence along the length direction. It should not be spot welded and fixed at will, and the installation gap should be controlled within 0.3mm.

[0048] In one embodiment of the present invention, in step S3, since the boundary corrugated plate is a corrugated plate of special size, it is more likely to deform during the welding process. In addition, the area where it is located is in special areas such as corners, which often have more parts and welds. If a large deformation occurs, it may affect the welding of other processes. Therefore, a certain welding sequence is required during welding to solve this problem. In this embodiment, the welding of the boundary corrugated plate follows the following rules:

[0049] For the corrugated plates located on the port and starboard areas of the ship, weld the seams in the direction of the ship's length first, then weld the seams perpendicular to the direction of the ship's length. For the corrugated plates in the bow and stern areas, weld the seams in the direction of the ship's width first, then weld the seams perpendicular to the direction of the ship's width.

[0050] At the intersection of multiple corrugated plates, first perform manual welding and then automatic welding;

[0051] The corrugated plate welds at the connector positions should be automatically welded after the connectors are installed.

[0052] The above rules can effectively reduce the deformation caused by staggered welds.

[0053] like Figure 4 As shown, in one embodiment of the present invention, in step S3, the method of connecting the welding device to the corrugated section is as follows:

[0054] Step 1: Check whether there is any damage (scratches, bumps, etc.) on the corrugated joint 4, and install the corrugated joint fixture 1 after confirming that it is correct;

[0055] Step 2, install the pad 3, and use a level ruler and a tape measure to measure the height and flatness of the corrugated section fixture 1 after the pad is installed;

[0056] Step 3, install the connecting rod 2, and test whether the rotation range can meet the welding requirements. If the rotation radius does not meet the welding requirements, replace the connecting rod 2 with a suitable length;

[0057] Step 4: Install the welding track and measure the flatness of the track again. After confirming that it is correct, install the welding head for welding.

[0058] In a specific implementation process, one rail 4 is usually connected to at least three corrugated section clamps 1 to form a complete welding system.

[0059] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A welding device for MARK III type enclosure system corrugated plate, characterized in that: The welding device comprises: The corrugated section clamp (1) is an inverted "concave" structure, comprising a horizontal plate and two vertical side plates, wherein the vertical side plates of the corrugated section clamp (1) are provided with a slot corresponding to the shape of the corrugated section (4); A connecting rod (2) connected to the horizontal plate of the corrugated section fixture (1) and extending out of the horizontal plate of the corrugated section fixture (1); A cushion block (3) is arranged at the end of the connecting rod (2); The track is connected to the end of the cushion block (3) and is perpendicular to the direction of the connecting rod (2).

2. A welding device for a MARK III type enclosure system corrugated plate as claimed in claim 1, characterized in that: The connecting rod (2) is connected to the corrugated section clamp (1) via a rotatable shaft (5).

3. A welding device for a MARK III type enclosure system corrugated plate as claimed in claim 2, characterized in that: The length of the connecting rod (2) is adjustable.

4. A welding device for a MARK III type enclosure system corrugated plate as claimed in claim 3, characterized in that: The cushion block (3) is made of stainless steel.

5. A welding method for a MARK III type enclosure system corrugated plate, characterized in that: The welding device described in any one of claims 1 to 4 is used to weld the MARK III type enclosure system corrugated plate, and the specific steps are as follows: Step S1, measuring the hull area value, calculating the size of the boundary corrugated plate, and processing and cutting the boundary corrugated plate during the prefabrication process; Step S2: Before installing the corrugated plate, check the processing status of the boundary corrugated plate, and spot weld and process the gap in sequence along the length direction of the corrugated plate during installation; Step S3, connect the welding device to the corrugated section, fix the head of the automatic welding machine to the welding device, and then rotate the track to a position where the automatic welding machine can weld according to the actual size of the on-site boundary corrugated plate to perform automatic welding.

6. A welding method for a MARK III type enclosure system corrugated plate as claimed in claim 5, characterized in that: In the step S2, the installation gap is controlled to be within 0.3 mm.

7. A welding method for a MARK III type enclosure system corrugated plate as claimed in claim 6, characterized in that: In step S3, the welding of the boundary corrugated plate follows the following rules: For the corrugated plates located on the port and starboard areas of the ship, weld the seams in the direction of the ship's length first, then weld the seams perpendicular to the direction of the ship's length. For the corrugated plates in the bow and stern areas, weld the seams in the direction of the ship's width first, then weld the seams perpendicular to the direction of the ship's width. At the intersection of multiple corrugated plates, first perform manual welding and then automatic welding; The corrugated plate welds at the connector positions should be automatically welded after the connectors are installed.

8. A welding method for a MARK III type enclosure system corrugated plate as claimed in claim 7, characterized in that: In step S3, the method of connecting the welding device to the bellows section is as follows: Step 1: Check whether there is any damage on the bellows joint, and install the bellows joint fixture after confirming that it is correct; Step 2: Install the pads, and use a level ruler and tape measure to measure the height and flatness of the corrugated section fixture after installing the pads; Step 3: Install the connecting rod and test whether the rotation range can meet the welding requirements. If the rotation radius does not meet the welding requirements, replace the connecting rod with a suitable length. Step 4: Install the welding track and measure the flatness of the track again. After confirming that it is correct, install the welding head for welding.

Images