Fusion vacuum chamber curved surface welding device

Abstract

The invention relates to the technical field of welding devices, in particular to a fusion vacuum chamber curved surface welding device which is used for welding side vacuum chamber splice plates on the two sides of a vacuum chamber sector unit and comprises a driving assembly, a welding assembly and a welding assembly. A clamping assembly is fixedly mounted at the outer end of the transmission rod through a connecting block; the clamping assembly on each side comprises a clamp used for clamping the open end of the fan-shaped annular cavity of the vacuum chamber sector unit. The welding gun is arranged outside the clamping block; the fusion vacuum chamber curved surface welding device can be synchronously and oppositely clamped on the two sides of a vacuum chamber sector unit to be welded, the position is kept fixed, and the alignment efficiency is improved; and meanwhile, the side edge vacuum chamber splice plate can be quickly and accurately limited at the side edge of the sector of the vacuum chamber creatively through the clamping assembly to complete welding and positioning, the side edge vacuum chamber splice plate can be stably positioned without deviation in the welding process, and the welding precision can be improved.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and specifically to a welding device for curved surfaces in a fusion vacuum chamber. Background Technology

[0002] Nuclear fusion, also known as nuclear fusion reaction, fusion reaction, or thermonuclear reaction, typically involves manufacturing a vacuum chamber by dividing it into multiple sectors, which are then assembled into a ring-shaped whole using welding. The adjacent vacuum chamber sectors are connected by vacuum chamber splicing plates.

[0003] The existing patent, CN 110142536 B, discloses an adjustment device for aligning and welding a 1 / 8 scale nuclear fusion vacuum chamber. This device can adjust the horizontal and tilt directions of the nuclear fusion vacuum chamber, providing favorable conditions for subsequent welding and thus improving welding accuracy; patent CN 117600751... Patent B discloses a welding device for a nuclear fusion vacuum chamber, which can rotate and fit two 1 / 16 nuclear fusion vacuum chambers together, improving the accuracy of the fit and thus improving the precision of subsequent welding. In summary, most current welding of nuclear fusion vacuum chambers focuses on how to align the two vacuum chamber sectors for welding. However, before welding the two vacuum chamber sectors, a vacuum chamber splicing plate needs to be pre-welded to the sides. Currently, there is no equipment for welding the vacuum chamber splicing plate. This part of the welding work is mostly done manually, which is inefficient and easily affected by human factors, thus affecting the welding quality. Therefore, the welding position of the vacuum chamber splicing plate on both sides of the vacuum chamber sector cannot be guaranteed to be constant. This will lead to defects such as over-welding, undercut, and unreliable welding in the subsequent welding of the two vacuum chamber sectors, failing to meet the welding quality requirements and resulting in a high overall scrap rate.

[0004] In summary, considering the need to improve the welding precision of the side vacuum chamber splicing plate, so that the vacuum chamber splicing plate can be quickly and accurately positioned on the side of the vacuum chamber sector for welding, thereby providing a reliable foundation for the subsequent overall welding of the nuclear fusion vacuum chamber; therefore, we propose a curved surface welding device for the fusion vacuum chamber. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings mentioned in the background section and provide a welding device for curved surfaces in a fusion vacuum chamber.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A fusion vacuum chamber curved surface welding device is used to weld side vacuum chamber splicing plates on both sides of a vacuum chamber sector unit, comprising: The drive assembly is driven by a power source to install two opposing synchronously rotating transmission rods, and the outer ends of the transmission rods are fixedly installed with clamping assemblies via connecting blocks; Each side of the clamping assembly includes a clamping block for clamping the open end of the fan-shaped annular cavity of the vacuum chamber sector unit. The clamping block is used to drive the side vacuum chamber splicing plate to fit against the welding part of the vacuum chamber sector unit for welding. A welding torch, located outside the clamping block, is used to weld the vacuum chamber sector unit and the side vacuum chamber splicing plate.

[0007] Preferably, a D-shaped track is installed on the outside of the clamping block, located inside the side vacuum chamber splicing plate; A robotic arm is mounted on the D-shaped track via a track moving block, and the welding torch is detachably mounted on the front end of the robotic arm.

[0008] Preferably, the side vacuum chamber splicing plate is a ring plate with a D-shaped profile, and the clamping block is provided with a limiting groove at the outer edge of the side of the vacuum chamber sector unit; The side vacuum chamber splicing plate is inserted into the limiting slot; When the clamping blocks are clamped to both sides of the vacuum chamber sector unit, the side vacuum chamber splicing plate is kept in the limiting slot and attached to the welding surface of the vacuum chamber sector unit.

[0009] Preferably, the robotic arm is equipped with any one or more of an ultrasonic flaw detector, a radiographic detector, or a camera for monitoring the weld quality at the welding point of the welding torch.

[0010] Preferably, the drive assembly includes a motor base with a mounting seat fixedly mounted on top, the mounting seat having a shaft cavity at its center, and a slot cavity being provided on the outer side of the shaft cavity; A sealing cover can be detachably installed on the top of the mounting base.

[0011] Preferably, a drive gear rod is rotatably mounted in the shaft cavity, and a driven gear rod that meshes with the drive gear rod to achieve opposite rotation is mounted in the slot cavity.

[0012] Preferably, the two transmission rods are coaxially fixedly mounted on the top ends of the driving gear rod and the driven gear rod, respectively.

[0013] Preferably, a drive motor is fixedly installed inside the motor base as a power source, and the drive motor is coaxially and fixedly connected to the drive gear rod.

[0014] Preferably, a work support for load positioning is provided below the vacuum chamber sector unit, and the work support is fixed in relative position to the drive assembly; The working support is provided with a slot for limiting the position of the vacuum chamber sector unit.

[0015] Preferably, clamping fixtures for keeping the vacuum chamber sector unit vertical and without deviation are installed on the inner and outer sides of the working support.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This fusion vacuum chamber curved surface welding device can simultaneously clamp the vacuum chamber sector unit to be welded on both sides, keeping the position fixed and improving alignment efficiency. At the same time, this device innovatively uses clamping components to quickly and accurately restrict the side vacuum chamber splicing plate to the side of the vacuum chamber sector for welding positioning, keeping the side vacuum chamber splicing plate stable and not shifting during the welding process, which is conducive to improving welding accuracy. 2. The welding torch is mounted on the clamping assembly, which can keep the predetermined welding path and the welding position of the side vacuum chamber splicing plate consistent, which is conducive to maintaining the stability of the weld quality and thus provides a reliable foundation for the subsequent overall welding of the vacuum chamber body. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the vacuum chamber body of the present invention; Figure 2 This is an exploded view of the overall structure and assembly of the vacuum chamber body of the present invention; Figure 3 This is a schematic diagram of the vacuum chamber sector unit of the present invention; Figure 4 This is an overall welding diagram of the vacuum chamber sector unit and the side vacuum chamber splicing plate of the present invention; Figure 5 This is a welding relationship diagram of the vacuum chamber sector unit and the side vacuum chamber splicing plate of the present invention; Figure 6 This is one of the overall structural schematic diagrams of the present invention; Figure 7 This is a top view of the overall structure of the present invention; Figure 8 This is the second schematic diagram of the overall structure of the present invention; Figure 9 This is an exploded view of the driving component of the present invention; Figure 10 This is an overall installation diagram of the clamping assembly and the side vacuum chamber splicing plate of the present invention; Figure 11 This is a diagram showing the installation relationship between the clamping assembly and the side vacuum chamber splicing plate of the present invention.

[0018] The meanings of the labels in the diagram are as follows: 1. Vacuum chamber body; 11. Vacuum chamber sector unit; 12. Side vacuum chamber splicing plate; 101. Sector-shaped annular cavity; 2. Working support; 3. Drive assembly; 31. Motor base; 32. Mounting base; 321. Shaft cavity; 322. Groove cavity; 33. Drive gear rod; 34. Driven gear rod; 35. Encapsulation cover plate; 4. Transmission rod; 5. Connecting block; 6. Clamping assembly; 61. Clamping block; 611. Limiting slot; 62. D-shaped track; 63. Track moving block; 64. Robotic arm; 65. Welding torch. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-11 The present invention will describe the above technical solution in detail through the following embodiments: The fusion vacuum chamber curved surface welding device in this embodiment, such as Figures 1-5 The structure shown includes eight vacuum chamber sector units 11 and eight side vacuum chamber splicing plates 12 for connecting the vacuum chamber sector units 11. The side vacuum chamber splicing plates 12 need to be welded quickly and accurately to the sides of the vacuum chamber sector units 11 to avoid affecting the overall welding quality of the vacuum chamber body 1 due to inaccurate welding of the side vacuum chamber splicing plates 12.

[0021] Because a sector-shaped annular cavity 101 is provided within the vacuum chamber sector unit 11, with openings on both sides, in order to achieve synchronous clamping action and avoid displacement of the welding position due to displacement of the vacuum chamber sector unit 11 caused by clamping the sector-shaped annular cavity 101 on one side, this embodiment is equipped with the following... Figures 6-9 The driving component 3 is shown.

[0022] Specifically, the drive assembly 3 includes a motor base 31 with a mounting base 32 fixedly mounted on top. A shaft cavity 321 is provided at the center of the mounting base 32, and a drive gear rod 33 is rotatably mounted in the shaft cavity 321. At the same time, a slot cavity 322 is provided in the shaft cavity 321, and a driven gear rod 34 that meshes with the drive gear rod 33 is rotatably mounted in the slot cavity 322. The drive gear rod 33 and the driven gear rod 34 will rotate synchronously in opposite directions, which can drive the two transmission rods 4 mounted on the drive gear rod 33 and the driven gear rod 34 to perform opening and closing actions, which are used to clamp on both sides of the vacuum chamber sector unit 11. For easy maintenance and disassembly, a sealing cover plate 35 is detachably installed on top of the mounting base 32. A drive motor with an output shaft fixedly connected to the drive gear rod 33 on the same axis is fixedly installed in the motor base 31 as a power source.

[0023] like Figures 10-11 As shown in the structure, in this embodiment, a clamping assembly 6 is fixedly installed at the outer end of the transmission rod 4 via a connecting block 5. The clamping assembly 6 can be clamped into the open end of the fan-shaped annular cavity 101 of the vacuum chamber sector unit 11. It includes two symmetrically arranged clamping blocks 61. The outer edge of the clamping block 61 is provided with a limiting groove 611 that matches the contour of the side vacuum chamber splicing plate 12. The limiting groove 611 can be used to insert the side vacuum chamber splicing plate 12 for limiting. When the clamping block 61 clamps to both sides of the vacuum chamber sector unit 11, the side vacuum chamber splicing plate 12 is kept in the limiting groove 611 and can keep the side vacuum chamber splicing plate 12 in a fixed position attached to the welding part of the vacuum chamber sector unit 11 for welding, which is beneficial to ensure the subsequent welding accuracy.

[0024] To maintain the fixed relative position between the welding torch 65 and the side vacuum chamber splicing plate 12 and further ensure welding accuracy, a D-shaped track 62 with the same outline as the side vacuum chamber splicing plate 12 is fixedly installed on the outside of the clamping block 61 in this embodiment. The track moving block 63 is moved by a motor on the D-shaped track 62. A multi-axis robotic arm 64 is installed on the track moving block 63. The welding torch 65 is detachably installed at the front end of the robotic arm 64. A fixed welding route can be set based on the movement of the robotic arm 64 in coordination with the track moving block 63. Because this application can maintain a constant welding position, the set welding route can maintain reliable welding quality. In order to further detect the weld quality, an ultrasonic flaw detector and a camera for monitoring the weld quality are set at the front end of the robotic arm 64 in this embodiment.

[0025] In addition, to obtain a fixed clamping point, the vacuum chamber sector unit 11 to be welded needs to be fixedly placed in a uniform position beforehand. Therefore, this embodiment is provided with a work support 2 that is fixed in position relative to the drive assembly 3. The work support 2 is used for... Figure 6 , Figure 8The vacuum chamber sector unit 11 is shown as a support. In this embodiment, the working support 2 is provided with a limiting groove for clamping the vacuum chamber sector unit 11, which facilitates vertical clamping of the vacuum chamber sector unit 11. This part belongs to the existing clamping and fixing structure and can be achieved by using existing tooling jaws. This application can quickly clamp and install the side vacuum chamber splicing plate 12 to be welded on both sides of the positioned vacuum chamber sector unit 11, which is beneficial to improving the welding quality of the side vacuum chamber splicing plate 12 and the vacuum chamber sector unit 11, and provides a reliable foundation for the subsequent welding of the vacuum chamber body 1 of the overall structure.

[0026] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A fusion vacuum chamber curved surface welding device for welding side vacuum chamber splicing plates (12) on both sides of a vacuum chamber sector unit (11), characterized in that: include: The drive assembly (3) is driven by a power source to install two opposing synchronously rotating transmission rods (4), and the outer ends of the transmission rods (4) are fixedly installed with clamping assemblies (6) via connecting blocks (5). Each side of the clamping assembly (6) includes a clamping block (61) for clamping the open end of the fan-shaped annular cavity (101) of the vacuum chamber sector unit (11). The clamping block (61) is used to drive the side vacuum chamber splicing plate (12) to fit against the welding part of the vacuum chamber sector unit (11) for welding. A welding torch (65) is disposed outside the clamping block (61) and is used to weld the vacuum chamber sector unit (11) and the side vacuum chamber splicing plate (12).

2. The fusion vacuum chamber curved surface welding device as described in claim 1, characterized in that: The clamping block (61) is equipped with a D-shaped track (62) located inside the side vacuum chamber splicing plate (12). A robotic arm (64) is mounted on the D-shaped track (62) via a track moving block (63), and the welding torch (65) is detachably mounted on the front end of the robotic arm (64).

3. The fusion vacuum chamber curved surface welding device as described in claim 2, characterized in that: The side vacuum chamber splicing plate (12) is a ring plate with a D-shaped profile, and the clamping block (61) is provided with a limiting slot (611) at the outer edge of the side of the vacuum chamber sector unit (11). The side vacuum chamber splicing plate (12) is inserted into the limiting slot (611); When the clamping block (61) is clamped to both sides of the vacuum chamber sector unit (11), the side vacuum chamber splicing plate (12) is kept in the limiting slot (611) and attached to the welding surface of the vacuum chamber sector unit (11).

4. The fusion vacuum chamber curved surface welding device as described in claim 2, characterized in that: The robotic arm (64) is equipped with any one or more of an ultrasonic flaw detector, a radiographic detector, or a camera for monitoring the weld quality of the welding part of the welding torch (65).

5. The fusion vacuum chamber curved surface welding device as described in claim 1, characterized in that: The drive assembly (3) includes a motor base (31) on which a mounting base (32) is fixedly mounted. The mounting base (32) has a shaft cavity (321) at its shaft center and a slot cavity (322) is provided on the outside of the shaft cavity (321). A sealing cover (35) can be detachably installed on the mounting base (32).

6. The fusion vacuum chamber curved surface welding device as described in claim 5, characterized in that: A drive gear rod (33) is rotatably mounted in the shaft cavity (321), and a driven gear rod (34) that meshes with the drive gear rod (33) to achieve opposite rotation is mounted in the groove cavity (322).

7. The fusion vacuum chamber curved surface welding device as described in claim 6, characterized in that: The two transmission rods (4) are coaxially fixedly installed at the top of the driving gear rod (33) and the driven gear rod (34), respectively.

8. The fusion vacuum chamber curved surface welding device as described in claim 7, characterized in that: A drive motor is fixedly installed inside the motor base (31) as a power source, and the drive motor is coaxially fixedly connected to the drive gear rod (33).

9. The fusion vacuum chamber curved surface welding device as described in claim 1, characterized in that: The vacuum chamber sector unit (11) is provided with a work support (2) for load positioning below it, and the work support (2) is fixed in relative position to the drive assembly (3); The working support (2) is provided with a slot for limiting the vacuum chamber sector unit (11).

10. The fusion vacuum chamber curved surface welding device as described in claim 9, characterized in that: The working support (2) is equipped with clamping fixtures on its inner and outer sides to keep the vacuum chamber sector unit (11) vertical and without deviation.

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