Gas-shielded automatic welding device for welding clad layer of composite board

Abstract

The utility model discloses a gas shield automatic welding device for welding a cladding layer of a composite plate. The device comprises a crawling welding robot which comprises a box body and a box body base, and the box body base is fixed to the bottom of the box body through welding; the crawling welding robot is installed on the walking soft rail and can walk through walking tooth holes in the walking soft rail; one end of the first main body rotating connecting piece is fixed to the box base; a second body rotation link having one end connected to the other end of the first body rotation link; the plurality of magnets are arranged below the walking soft rail; a longitudinal adjusting block and a transverse adjusting block, the other end of the second main body rotation connecting piece is fixed to the longitudinal adjusting block, and the longitudinal adjusting block and the transverse adjusting block are connected together; and the gas shielded welding gun head is fixed to the transverse adjusting block. The device improves the welding efficiency and improves the quality of the inner surface and the outer surface of a welding seam.

Description

Technical Field

[0001] This application generally relates to the technical field of welding apparatus, and more particularly to an apparatus for gas-shielded automatic welding of composite plate cladding. Background Technology

[0002] The non-destructive testing (NDT) pass rate for pressure vessels is a crucial indicator of a company's quality assurance system operation, welder skill level, and overall capability. The NDT pass rate for composite plates is an even more significant component of the overall NDT pass rate. The welding process for composite plates is complex and demands stringent quality control. First, the base layer is welded. After passing the PT test (penetrating penetration testing, used to detect surface openings in non-porous solid materials), the transition layer is welded, followed by another PT test. Only after passing this test is the surface layer welded. Compared to welding with ordinary pure carbon steel or ordinary stainless steel equipment, welding composite plates involves a larger workload, higher labor consumption, and lower production efficiency.

[0003] Products undergo visual inspection before shipment. Frequent issues with the surface quality of the weld seams in the composite panel cladding will severely impact the overall product quality and on-time delivery. Furthermore, many quality issues reported externally and delivered to customer sites stem from weld seam leaks in the composite panels, which will seriously damage the company's reputation.

[0004] For the reasons mentioned above, this utility model patent provides a gas-shielded automatic welding device for composite plate cladding welding. This device improves the quality of composite plate flaw detection, saves costs, and increases the weld flaw detection pass rate and production efficiency. Utility Model Content

[0005] In view of the above-mentioned technical problems, this disclosure proposes a gas-shielded automatic welding device for composite plate cladding welding, characterized in that it includes: a crawling welding robot, the crawling welding robot including a box body and a box body base, the box body base being fixed to the bottom of the box body by welding; a walking rail, the crawling welding robot being mounted on the walking rail and capable of walking through walking teeth holes on the walking rail; a first main body rotating connector, one end of the first main body rotating connector being fixed to the box body base; a second main body rotating connector, the other end of the first main body rotating connector being connected to one end of the second main body rotating connector; a plurality of magnets, the plurality of magnets being arranged below the walking rail; a longitudinal adjustment block and a transverse adjustment block, the other end of the second main body rotating connector being fixed to the longitudinal adjustment block, and the longitudinal adjustment block and the transverse adjustment block being connected together; and a gas-shielded welding torch head, the gas-shielded welding torch head being fixed to the transverse adjustment block.

[0006] In a preferred embodiment, the gas shielded welding torch head is inserted into the transverse adjustment block by rotating and tightening.

[0007] In a preferred embodiment, one end of the first main body rotating connector is fixed to the housing base by welding.

[0008] In a preferred embodiment, the other end of the first body rotary connector is connected to one end of the second body rotary connector via a connector.

[0009] In a preferred embodiment, the connector is a bolt and a nut.

[0010] In a preferred embodiment, the second main body rotary connector is rotatable relative to the first main body rotary connector.

[0011] In a preferred embodiment, the plurality of magnets are arranged at equal intervals below the travel track.

[0012] In a preferred embodiment, the gas shielded welding torch tip is a carbon dioxide shielded welding torch tip.

[0013] In a preferred embodiment, the magnet is at least one of a hard magnetic material or a soft magnetic material.

[0014] Compared with the prior art, the beneficial effects of this disclosure are as follows: the technical solution of this utility model improves the quality of composite plate flaw detection, saves costs, and increases the weld flaw detection pass rate and production efficiency. Furthermore, the technical solution of this utility model improves welding efficiency and enhances the internal and external surface quality of the weld. Attached Figure Description

[0015] The novel features of this application are specifically set forth in the appended claims. A better understanding of the features and advantages of this application will be gained by referring to the following detailed description and accompanying drawings, which illustrate illustrative embodiments in which the principles of this application are utilized. The drawings are for illustrative purposes only and should not be considered as limiting the scope of this application. Furthermore, the same reference numerals denote the same elements throughout the drawings, in which:

[0016] Figure 1 A schematic diagram of an apparatus for gas-shielded automated welding of composite plate cladding is shown according to an exemplary embodiment of the present disclosure;

[0017] Figure 2 A top view of an apparatus for gas-shielded automated welding of composite plate cladding is shown according to an exemplary embodiment of the present disclosure;

[0018] Figure 3A schematic diagram of a first main body rotary connector and a second main body rotary connector for composite plate cladding welding according to an exemplary embodiment of the present disclosure is shown.

[0019] Figure 4 A schematic diagram is shown of longitudinal weld seam welding of a pressure vessel using an apparatus according to an exemplary embodiment of the present disclosure; and

[0020] Figure 5 A schematic diagram is shown of welding an annular weld seam of a pressure vessel using an apparatus according to an exemplary embodiment of the present disclosure.

[0021] Explanation of reference numerals in the attached drawings: 1-Crawling welding robot, 2-Walking soft rail, 3-Magnet, 4-First main body rotating connector, 5-Second main body rotating connector, 6-Connector, 7-Longitudinal adjustment block, 8-Transverse adjustment block, 9-Adjustment knob, 10-Gas shielded welding torch head, 11-Box body, 12-Box body base, 13-Walking tooth hole, 14-Pressure vessel composite plate cylinder. Detailed Implementation

[0022] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this disclosure and to fully convey the scope of this disclosure to those skilled in the art. Nothing in the following detailed description is intended to suggest that any particular component or feature is essential to this application. Those skilled in the art will understand that various features may be substituted for or combined with each other without departing from the scope of this disclosure.

[0023] Figure 1 A schematic diagram of an automated gas-shielded welding apparatus for composite plate cladding welding according to an exemplary embodiment of the present disclosure is shown. The apparatus may include a crawling welding robot 1, a walking rail 2, multiple magnets 3, a first main body rotating connector 4, a second main body rotating connector 5, a connector 6, a longitudinal adjustment block 7, a transverse adjustment block 8, and a gas-shielded welding torch head 10. Figure 2A top view of an apparatus for gas-shielded automated welding of composite plate cladding according to an exemplary embodiment of the present disclosure is shown. The crawling welding robot 1 may include a housing 11 and a housing base 12. The housing base 12 may be welded to the bottom of the housing 11. The crawling welding robot 1 may be mounted on a flexible walking rail 2 and may move through walking toothed holes 13 on the flexible walking rail 2. For example, a micro motor may be included inside the housing 11, which may drive the crawling welding robot 1 to move on the flexible walking rail 2 using the walking toothed holes 13. In some cases, the walking toothed holes 13 may be two rows of toothed holes arranged on both sides of the flexible walking rail 2. One end of the first main body rotating connector 4 may be fixed to the housing base 12, and the other end of the first main body rotating connector 4 may be connected to one end of the second main body rotating connector 5. In a preferred embodiment, one end of the first main body rotating connector 4 may be welded to the housing base 12. In a preferred embodiment, the other end of the first main body rotating connector 4 may be connected to one end of the second main body rotating connector 5 via a connector 6. In a preferred embodiment, the connector 6 may be a bolt and nut. In other embodiments, the connector 6 may be a screw, threaded rod, bolt, pin, or any type of connector deemed suitable by those skilled in the art. In a preferred embodiment, the second main rotating connector 5 is rotatable relative to the first main rotating connector 4. The plurality of magnets 3 may be arranged below the travel rail 2. In a preferred embodiment, the plurality of magnets 3 may be arranged at equal intervals below the travel rail 2. In some embodiments, the plurality of magnets 3 may be arranged at equal intervals along the travel rail 2 below the travel rail 2. In a preferred embodiment, the magnets 3 may be at least one of hard magnetic material or soft magnetic material. In other embodiments, the magnets 3 may be neodymium iron boron magnets, ferrite magnets, AlNiCo magnets, IronChromium CoCo magnets, or any other magnet deemed suitable by those skilled in the art. The other end of the second main rotating connector 5 may be fixed to the longitudinal adjusting block 7, and the longitudinal adjusting block 7 and the transverse adjusting block 8 may be connected together. The gas shielded welding torch head 10 may be fixed to the transverse adjusting block 8. In a preferred embodiment, the gas shielded welding torch tip 10 can be inserted into the lateral adjustment block 8 by rotational tightening. In a preferred embodiment, the gas shielded welding torch tip can be a carbon dioxide shielded welding torch tip. In a preferred embodiment, the gas shielded welding torch tip can be a gooseneck or pistol-type welding torch tip, or any other welding torch tip deemed suitable by those skilled in the art. The crawling welding robot 1 automatically moves along the walking rail 2, thereby automatically moving the gas shielded welding torch tip 10 to perform automatic welding operations.In a preferred embodiment, the crawling welding robot may be, for example, a flexible track crawling welding robot or any other welding robot that a person skilled in the art deems suitable.

[0024] Figure 3 A schematic diagram of a first main rotating connector 4 and a second main rotating connector 5 for composite plate cladding welding according to an exemplary embodiment of the present disclosure is shown. One end of the first main rotating connector 4 and the opposite end of the second main rotating connector 5 may have an overlapping structure to overlap one end of the first main rotating connector 4 and the opposite end of the second main rotating connector 5 together. In a preferred embodiment, the first main rotating connector 4 can be connected to the second main rotating connector 5 via a connector 6, and rotation of the second main rotating connector 5 relative to the first main rotating connector 4 can adjust the relative position between the gas shielded welding torch head 10 and the weld seam, such that the gas shielded welding torch head 10 is aligned with the weld seam for automatic welding operation. In a preferred embodiment, the position of the gas shielded welding torch head is adjusted by rotating the adjustment knob 9 to adjust the positions of the longitudinal adjustment block and the transverse adjustment block. In some embodiments, the adjustment knob 9 may include a longitudinal adjustment knob and a transverse adjustment knob. Both the longitudinal adjustment knob and the transverse adjustment knob may include screws that are respectively inserted into the longitudinal adjustment block and the transverse adjustment block. In some embodiments, the positions of the longitudinal adjustment block 7 and the transverse adjustment block 8 can be adjusted by adjusting the longitudinal adjustment knob and the transverse adjustment knob to adjust the position of the gas shielded welding torch head 10. For example, the longitudinal adjustment block 7 and the transverse adjustment block 8 can be arranged at 90 degrees to each other.

[0025] Figure 4 A schematic diagram is shown of longitudinal weld seam welding of a pressure vessel using an apparatus according to an exemplary embodiment of the present disclosure. In the case of longitudinal weld seam welding of the pressure vessel composite plate cylinder 14, the angle of the longitudinal weld seam bevel can be 50 degrees. The width of the longitudinal weld seam can be 2 mm. The travel rail 2 can be arranged parallel to the longitudinal weld seam. The apparatus according to an exemplary embodiment of the present disclosure can be placed on the travel rail 2 such that the gas shielded welding torch head 10 is aligned with the longitudinal weld seam for automatic welding. Figure 5A schematic diagram is shown of annular weld seam welding of a pressure vessel composite plate cylinder 14 using an apparatus according to an exemplary embodiment of the present disclosure. Two cylinder sections of the pressure vessel composite plate cylinder 14 can form annular weld seam after butt joint. A flexible guide rail 2 can be arranged parallel to the annular weld seam and surrounding the cylinder section. The apparatus according to an exemplary embodiment of the present disclosure can be placed on the flexible guide rail 2 such that the gas shielded welding torch head 10 is aligned with the longitudinal weld seam for automated welding around the cylinder section. In some embodiments, the flexible guide rail 2 may include multiple sections that can be directly detached and connected to the front of the next section after the robot has traversed one section, allowing for reuse of the guide rail.

[0026] Compared with existing technologies, the technical solution of this utility model solves the following technical problems: 1. The technical solution of this utility model solves the problem of undercut that may exist in the weld of stainless steel and stainless steel cladding of composite plates, avoiding scouring loss or uneven heat transfer caused by excessively high or low local flow rates. 2. The technical solution of this utility model solves the problem of slag inclusion that may exist at the junction of carbon steel base and stainless steel cladding. 3. The technical solution of this utility model avoids the problem of cracks that may occur on the surface or in the transition layer. 4. The technical solution of this utility model avoids the problems of low efficiency, poor welding environment, high labor costs, and high cost of subsequent grinding treatment in manual welding. 5. The technical solution of this utility model also avoids the problems of diameter limitation of automatic welding equipment and excessive energy of automatic welding lines. The technical solution of this utility model has the advantages of strong operability, high flexibility of the device itself, low cost of accessories, and wide applicability. Furthermore, the technical solution of this utility model improves the production efficiency of the equipment, improves the pass rate of non-destructive testing and surface quality of the equipment after welding, and can ensure the internal and external quality requirements of the equipment throughout the entire process.

[0027] It should be understood that the systems in the various embodiments provided in this utility model can be combined, modified, and / or altered to form new technical solutions. Without inventive effort, these technical solutions should also be included within the scope of protection claimed by this utility model.

[0028] Numerous specific examples are provided in the embodiments described herein. It should be understood that these examples are for the purpose of elaborating on the implementation of the present invention in detail and are not intended to limit the scope of the invention. Embodiments of the present invention can be practiced without these specific examples. In some embodiments, structures and / or techniques well-known to those skilled in the art have not been shown in detail so as not to obscure the understanding of the present invention.

[0029] Although preferred embodiments of the present invention have been shown and described herein, it will be readily understood by those skilled in the art that these embodiments are provided by way of example only. Various changes, modifications, and substitutions will appear to those skilled in the art without departing from the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein are optionally used to implement the present invention. The scope of the present invention is intended to be defined by the claims, and thereby to cover structures within the scope of these claims and their equivalents.

Claims

1. An automatic gas-shielded welding apparatus for composite plate cladding welding, characterized in that, include: A crawling welding robot, comprising a housing and a housing base, wherein the housing base is fixed to the bottom of the housing by welding; The crawling welding robot is mounted on a flexible walking rail and can move through the walking tooth holes on the flexible walking rail. The first main body rotating connector, one end of which is fixed to the housing base; The second main body rotary connector has one end connected to the other end of the first main body rotary connector. Multiple magnets are arranged below the travel rail; The longitudinal adjusting block and the lateral adjusting block are provided, with the other end of the second main body rotating connector fixed to the longitudinal adjusting block, and the longitudinal adjusting block and the lateral adjusting block connected together. as well as A gas shielded welding torch head, which is fixed to the lateral adjustment block.

2. The apparatus according to claim 1, characterized in that, The gas shielded welding torch head is inserted into the transverse adjustment block by rotating and tightening.

3. The apparatus according to claim 1, characterized in that, One end of the first main rotating connector is fixed to the box base by welding.

4. The apparatus according to claim 1, characterized in that, The other end of the first main body rotary connector is connected to one end of the second main body rotary connector via a connector.

5. The apparatus according to claim 4, characterized in that, The connecting components mentioned above are bolts and nuts.

6. The apparatus according to claim 1, characterized in that, The second main rotating connector is rotatable relative to the first main rotating connector.

7. The apparatus according to claim 1, characterized in that, The plurality of magnets are arranged at equal intervals below the travel track.

8. The apparatus according to claim 1, characterized in that, The gas shielded welding torch tip mentioned above is a carbon dioxide shielded welding torch tip.

9. The apparatus according to claim 1, characterized in that, The magnet is at least one of a hard magnetic material or a soft magnetic material.

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