High-energy beam welding auxiliary tooling and flame tube transition section welding structure

Abstract

This invention relates to a high-energy beam welding auxiliary fixture suitable for welding the outer ring of a flame tube transition section to the mounting edge of the flame tube transition section. It includes an upper clip, a lower clip, a fastening assembly, and a U-shaped component. The upper clip is positioned above the lower clip. A first hook is provided on one side of the upper clip, and a second hook is provided on the corresponding side of the lower clip. The U-shaped component has an open absorption groove. The U-shaped component is spot-welded onto the top surface of the upper clip. After the upper and lower clips are vertically aligned, the fastening assembly passes sequentially through the first and second hooks to connect the upper and lower clips. This fixture also prevents residual energy from splashing into the vent holes of the outer ring of the flame tube transition section.

Description

Technical Field

[0001] This invention belongs to the technical field of high-energy beam welding, and particularly relates to a high-energy beam welding auxiliary tooling and a welding structure for the transition section of the flame tube. Background Technology

[0002] In high-energy beam welding, butt joints are classified as either fully penetrated or partially penetrated. For fully penetrated joints, two issues must be considered when designing the high-energy beam welding process: First, a significant amount of residual energy will remain after the high-energy beam penetrates the part. This energy will directly act on the first obstruction below the weld joint, which could be a fixture or the part itself. This residual energy will form a secondary weld on the part, which is not permitted by standards. Acting on an unintended surface of the fixture will damage it, rendering it unusable. Second, after the high-energy beam penetrates the part, a large amount of spatter will be generated at the root. This spatter can adhere to a wide area, even covering the entire inner wall of the part. This spatter is foreign matter outside the design drawings and must be removed. Additionally, the inner wall may have vents, which must not be obstructed or damaged.

[0003] To address the aforementioned issues, the traditional solution involves designing a fixture with an electron beam residual energy absorption groove on the back of the weld. However, this is only suitable for open and semi-open parts with simple internal shapes. For parts with complex internal cavities or high degrees of closure and small internal cavity dimensions, the clamping and disassembly problems cannot be solved, leading to increased part processing difficulty and lower processing efficiency.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a high-energy beam welding auxiliary tooling and a welding structure for the transition section of the flame tube, solving the technical problem of low processing efficiency in existing technologies. The technical solution of this invention has many beneficial effects, as described below:

[0006] A high-energy beam welding auxiliary fixture is provided, suitable for welding the outer ring of the transition section of a flame tube to the mounting edge of the transition section. It includes an upper clip, a lower clip, a fastening assembly, and a U-shaped component. The upper clip is positioned above the lower clip. A first hook is provided on one side of the upper clip, and a second hook is provided on the corresponding side of the lower clip. The U-shaped component has an open absorption groove.

[0007] The top surface of the upper card is equipped with a U-shaped part by spot welding. After the upper card and the lower card are aligned in the vertical direction, the fastening component passes through the first hook and the second hook in sequence to connect the upper card and the lower card.

[0008] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0009] The present invention uses an absorption groove in the U-shaped part of the upper card to prevent residual energy from splashing into the vent hole of the outer ring of the flame tube transition section. Furthermore, the upper and lower cards are elastically connected by a fastening assembly to prevent them from moving within the annular cavity formed by the outer ring of the flame tube transition section and the outer ring of the flame tube transition section. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the high-energy beam auxiliary tooling structure shown in this invention;

[0012] Figure 2 This is a diagram of the card above;

[0013] Figure 3 Right view of the high-energy beam auxiliary tooling;

[0014] Figure 4 Schematic diagram of the auxiliary tooling for clamping parts;

[0015] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0016] Figure 6 Schematic diagram a of the auxiliary tooling for clamping parts;

[0017] Figure 7 Schematic diagram b of the auxiliary tooling for clamping parts;

[0018] Figure 8 The following is a diagram illustrating the card below, where:

[0019] 1. Upper card; 2. Screw sleeve; 3. Screw; 4. Torsion spring; 5. Nut; 6. Lower card; 7. Absorption tank; 8. Outer ring of flame tube transition section; 9. High-energy beam welding position; 10. Outer ring of flame tube transition section; 11. Tooling disassembly outlet; 12. Auxiliary tooling A0; 13. Auxiliary tooling A1; 14. Auxiliary tooling A2; 15. Vent hole; 16. U-shaped part; 17. First hook; 18. Second hook. Detailed Implementation

[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0022] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that aspects can be practiced without these specific details. To enable those skilled in the art to better understand the invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise stated, "a plurality of" means two or more.

[0024] Referring to Figure 1, the high-energy beam welding auxiliary fixture is suitable for welding the outer ring 8 of the flame tube transition section to the mounting edge 10 of the flame tube transition section. It includes an upper clip 1, a lower clip 6, a fastening assembly, and a U-shaped component 16. The upper clip 1 is positioned above the lower clip 6, and a first hook 17 is provided on the side of one end of the upper clip 1. Figure 8 As shown, the lower card 6 has a second hook 18 on its corresponding side, and the U-shaped part 16 has an open absorption groove 7. The absorption groove 7 is made of the same material as the upper card 1, and its purpose is to prevent metal vapor from contaminating the weld, forming weld defects or affecting weld performance. Both the upper card 1 and the lower card 6 are made of non-magnetic stainless steel to accommodate different welding methods in high-energy beam welding.

[0025] like Figure 2 As shown, a U-shaped component 16 is spot-welded to the top surface of the upper card 1. After the upper card 1 and the lower card 6 are aligned vertically, the fastening components pass through the first hook 17 and the second hook 18 in sequence to connect the upper card 1 and the lower card 6. Preferably, the upper card 1 and the lower card 6 are arranged in an L-shape with rounded corners, or the upper card 1 and the lower card 6 are arranged in an arc-shaped structure with an L-shaped cross-section. The U-shaped component 16 contacts the inner end face of the upper card 1 at the end away from the first hook 17 and is staggered. When the absorption groove 7 is connected to the upper card 1, it forms a misalignment to ensure that there is no splash shielding gap when connecting multiple tooling in the future, which could lead to burns on the parts. The absorption groove 7 is installed at the root of the L-shaped position of the upper card 1, and the connection method is spot welding or a semi-permanent installation method, which allows for convenient replacement when the groove is damaged during subsequent welding. The first hook 17 and the second hook 18 are staggered, preferably in a non-closed structure, with notches.

[0026] As a specific embodiment provided in this case, the outer ring 8 of the flame tube transition section in the prior art is provided with ventilation holes. The fastening assembly includes a screw 3, a nut 5, and a torsion spring 4, wherein: after the screw 3 is fitted with the torsion spring 4, it passes through the first hook 17 and the second hook 18 in sequence, and is fastened by the nut 5. The protruding part of the torsion spring 4 resists the bottom surface of the upper card 1 and the top surface of the lower card 6 respectively. Preferably, the screw 3 is also fitted with a screw 3 sleeve 2. The function of the fastening assembly is, as Figure 3 As shown, the upper card 1 and the lower card 6 are pressed together with the torsion spring 4 to prevent the tooling from loosening, thereby fixing the absorption groove 7. The absorption groove 7 can resist the residual light energy from splashing into the vent hole 15 during welding.

[0027] Furthermore, the shape of the absorption groove 7 is not limited to that shown in the figure, as long as it is a groove structure. The combination of screw 3 set 2, screw 3 and nut 5 is intended to connect and fasten the upper card 1 and the lower card 6 and their torsion spring 4, and also to ensure smooth rotation of the entire tooling through the gap of screw 3 set. In practical applications, it is not limited to this structure, as long as the fastening and rotation of the device are ensured.

[0028] The characteristic of its use is that the auxiliary tooling can be assembled and disassembled separately. When in use, multiple auxiliary toolings are selected and connected to form a secondary auxiliary tooling according to the structure of the part.

[0029] Secondly, as Figure 4 As shown, a welding structure for a flame tube transition section is provided, which is installed in the hollow area formed when the outer ring 8 of the flame tube transition section and the mounting edge of the flame tube transition section 10 are welded together, such as... Figure 7 As shown, the outer ring 8 of the flame tube transition section is provided with a vent hole 15, including the use of multiple high-energy beam welding auxiliary toolings described above, some or all of which are mentioned above. The height of the U-shaped part 16 is lower than the height of the upper card 1. This provides an auxiliary tooling design scheme for high-energy beam welding (e-book welding or high-energy beam welding, etc.). This scheme mainly utilizes calculus principles. During high-energy beam welding, the components cannot guarantee good protection and auxiliary tooling disassembly due to issues with controlling welding spatter, residual energy, and space-constrained welding structures. The tooling can be assembled and disassembled individually. Multiple auxiliary toolings can be selected and connected to form a secondary auxiliary tooling according to the component structure. Specifically, the hollow area is an annular mounting cavity, and high-energy beam welding auxiliary toolings are installed sequentially at intervals. The absorption groove 7 of the U-shaped part 16 is used to prevent residual energy spatter from entering the vent hole 15 during high-energy beam welding.

[0030] Instructions for use:

[0031] (1) Component assembly: The outer ring 8 of the flame tube transition section and the mounting edge 10 of the flame tube transition section are assembled as follows: Figure 6 Assembly and tack welding are performed on both parts, which are both ring-shaped. Figure 4 visible.

[0032] (2) For the assembly of a single auxiliary fixture, considering that the high-energy beam is incident from the vertical surface of the high-energy beam welding position 9 and penetrates the joint, the fixture should be installed from the fixture disassembly exit 11. Figure 5 As shown, the compression device is installed inside the part assembly structure. The assembly result is shown in the image. Figure 4 .

[0033] (3) Assembly of other auxiliary fixtures: Install the second auxiliary fixture, namely auxiliary fixture A113, into the part assembly structure in the manner of step (2), and then slide the second auxiliary fixture—auxiliary fixture A113—circumferentially so that the absorption groove 7 of auxiliary fixture A113 engages with the L-shaped surface of the upper card 1 of auxiliary fixture A012, ensuring that the absorption grooves 7 of the two auxiliary fixtures are aligned. Figure 7 As shown.

[0034] (4) Auxiliary tooling installation completed: Install multiple auxiliary toolings in sequence according to step (3). At this time, the auxiliary toolings A0, A1, A2...An will form a secondary auxiliary tooling, such as... Figure 4 Then you can proceed with welding.

[0035] (5) Auxiliary tooling disassembly: Using a hooked metal wire, hook it onto the middle part of screw 3. Under the action of tension, the auxiliary tooling will be disassembled from its original state. Figure 6 Become Figure 7 This allows you to remove the auxiliary tooling; all other parts can be disassembled in the same way.

[0036] The product provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to the invention without departing from the principles of the invention, and these improvements and modifications also fall within the protection scope of the invention claims.

Claims

1. A high-energy beam welding auxiliary fixture, wherein multiple such fixtures are installed in the hollow area formed during welding between the outer ring of the flame tube transition section and the mounting edge of the flame tube transition section, characterized in that, The assembly includes an upper card, a lower card, a fastening component, and a U-shaped component. The upper card is positioned above the lower card. A first hook is provided on one side of the upper card, and a second hook is provided on the corresponding side of the lower card. The U-shaped component has an open absorption groove. The top surface of the upper card is provided with a U-shaped part by spot welding. After the upper card and the lower card are aligned in the vertical direction, the fastening component passes through the first hook and the second hook in sequence to connect the upper card and the lower card. Both the upper and lower cards are designed with an L-shaped structure, and the L-shaped structure is rounded at the corners; or, the upper and lower cards are designed with an arc-shaped structure with an L-shaped cross-section; the U-shaped component contacts the inner end face of the upper card at the end away from the first hook, and is staggered. The fastening assembly includes a screw, a nut, and a torsion spring. After the screw is fitted onto the torsion spring, it passes through the first hook and the second hook in sequence and is fastened by the nut. The protruding part of the torsion spring resists the bottom surface of the upper card and the top surface of the lower card, respectively. The hollow area is an annular mounting cavity, and the high-energy beam welding auxiliary tooling is installed sequentially at intervals. The absorption groove of the U-shaped part can prevent the residual energy from splashing into the vent hole during high-energy beam welding.

2. The high-energy beam welding auxiliary tooling according to claim 1, characterized in that, Both the upper and lower cards are made of non-magnetic stainless steel.

3. The high-energy beam welding auxiliary tooling according to claim 1, characterized in that, The height of the U-shaped piece is lower than the height of the upper card.

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