Cladding equipment

Abstract

The invention provides cladding equipment which comprises a working platform, a cladding mechanical arm and a shielding gas local airtight device, the shielding gas local airtight device comprises a first connecting assembly and a flexible airtight cover, the top end of the flexible airtight cover is connected with the cladding mechanical arm through the first connecting assembly, and the bottom end of the flexible airtight cover is connected with the working platform; a closed cladding cavity is defined by the flexible airtight cover, the cladding mechanical arm and the working platform, a laser cladding head is fixed to the mechanical arm, and the laser cladding head is located in the cladding cavity.

Description

Technical Field

[0001] This invention relates to the field of laser cladding, and particularly to a cladding device. Background Technology

[0002] In the field of metal additive manufacturing, using inert gases such as argon and helium as protective gases to avoid oxidation is a relatively effective measure. Existing protective gas solutions usually include the following two types: one is to delineate and seal the entire processing area, and then inject inert gas by evacuation; the other is to set up a fixed sealed space at a specific location inside the processing area and protect it by gas washing technology.

[0003] While the aforementioned sealing solutions can achieve protective gas protection, these solutions are limited to fixed, sealed chambers in processing stations. For additive manufacturing controlled by robotic arms, it is necessary to completely evacuate the robotic arm and worktable, which presents certain difficulties and leads to a sharp increase in costs, resulting in poor economic efficiency. If high-pressure argon is used to flush local areas, on the one hand, stability cannot be guaranteed, and it is difficult to detect data such as water and oxygen content in the printing area, leading to unstable printing quality. On the other hand, the consumption of argon is enormous, with a continuous release of large amounts of high-pressure argon throughout the printing process, resulting in significant waste.

[0004] Six-axis robotic arms are the backbone of industrial robot technology. Their serially connected structure of six rotary joints provides unparalleled spatial flexibility, making them ideal for solving complex automation tasks. While some challenges exist in high-speed and high-rigidity applications, their versatility and maturity ensure they will remain core equipment in automated factories for a long time to come. Industrial-grade six-axis robotic arms are currently the world's largest additive and subtractive manufacturing integrated devices. Due to their enormous size, a fully covered protective gas system is difficult to implement; moreover, the industrial-grade six-axis robotic arm has a very large range of motion during operation, therefore, existing fixed local protective gas systems are not feasible for industrial-grade six-axis robotic arms.

[0005] Currently, there is no good solution that can simultaneously satisfy the requirements of local argon gas sealing and ease of movement for industrial-grade six-axis robotic arms. Summary of the Invention

[0006] Therefore, it is necessary to provide a cladding device.

[0007] To solve the above-mentioned technical problems, the present invention provides a protective gas local airtight device, including a working platform, a cladding robotic arm, and a protective gas local airtight device. The protective gas local airtight device includes a first connecting component and a flexible airtight cover. The top end of the flexible airtight cover is connected to the cladding robotic arm through the first connecting component, and the bottom end of the flexible airtight cover is connected to the working platform. The flexible airtight cover, the cladding robotic arm, and the working platform enclose a closed cladding chamber. A laser cladding head is fixed on the robotic arm and is located in the cladding chamber.

[0008] Preferably, the top of the flexible airtight cover is provided with a first opening adapted to the first connecting component, and the top of the flexible airtight cover is sleeved and installed on the first connecting component through the first opening. The bottom of the flexible airtight cover is provided with a second opening adapted to the working platform, and the bottom of the flexible airtight cover is sleeved and installed on the working platform through the second opening.

[0009] Preferably, the first connecting assembly includes an upper baffle and a lower baffle. The lower baffle has a window at its center, through which the cladding robotic arm passes. The upper baffle is stacked and fixed on top of the lower baffle. The upper baffle has a notch at its center, which is directly opposite the window. The cladding robotic arm is inserted into the notch, so that the upper baffle is fixed to the cladding robotic arm through the notch.

[0010] Preferably, the upper cover of the baffle includes two U-shaped splicing plates. When the two splicing plates are spliced ​​together, the splicing position of the two splicing plates forms the snap-fit ​​notch. The lower cover of the baffle is provided with wire-passing holes for inserting cladding wires around the opening.

[0011] Preferably, the first opening is provided with a first tightening component for connecting the top of the flexible airtight cover to the first connecting component, and the second opening is provided with a second tightening component for connecting the bottom of the flexible airtight cover to the working platform; the first tightening component includes a tightening knob and a flexible rope, the second tightening component is an airtight silicone pad, and the lower cover of the baffle is a disc.

[0012] Preferably, an annular groove is provided on the side wall edge of the lower cover of the baffle, the annular groove surrounds the side wall edge of the lower cover of the baffle, and the first opening at the top of the flexible airtight cover is fitted and installed in the annular groove.

[0013] Preferably, the work platform includes a support base and a five-axis cradle turntable, the robotic arm is an industrial-grade six-axis robotic arm, the two ends of the protective gas local airtight device are respectively connected to the work platform and the robotic arm, the work platform is provided with a second connecting component, the second connecting component includes an outer frame, sheet metal strips and hook-shaped tightening sheet metal, the outer frame is sleeved on the periphery of the five-axis cradle turntable, a sealed bearing is provided between the periphery of the five-axis cradle turntable and the outer frame, the second opening at the bottom of the flexible airtight cover is sleeved on the outer frame, so that the flexible airtight cover rotates relative to the five-axis cradle turntable.

[0014] Preferably, the flexible airtight cover is made of PO or TPU, the membrane thickness of the flexible airtight cover is in the range of 0.12-0.18mm, and the pressure of the protective gas inside the flexible airtight cover is in the range of 110-120kPa.

[0015] Preferably, the flexible airtight cover is composed of a flexible high-temperature resistant airtight membrane.

[0016] Preferably, the top of the splicing plate is provided with threaded holes, the threaded holes are m6 threaded holes, and there are 3 threaded holes; the side of the splicing plate is provided with countersunk holes, and there are 2 countersunk holes.

[0017] The beneficial effects of the present invention are as follows: The cladding device of the present invention is fixed at the top and bottom of a flexible, airtight protective cover, and no rigid support is provided in the middle of the airtight protective cover. The expansion and support of the gas pressure are achieved solely by the filling of the internal protection. Thus, the robotic arm is dynamically connected to the processing area through the flexible protective cover. The flexible protective cover can provide a stable argon gas environment in a small area, thereby achieving both local airtight protection and dynamic balance between the robotic arm and the cradle operation. This solves the problems of excessively large airtight space and difficulty in guaranteeing the purity of the protective gas in existing systems. Attached Figure Description

[0018] The above and other objects, features, and advantages of the invention will become clearer through a more detailed description of the preferred embodiments illustrated in the accompanying drawings. The same reference numerals denote the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of the invention.

[0019] Figure 1 This is a perspective view of the cladding equipment according to a preferred embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the cladding equipment according to a preferred embodiment of the present invention from a frontal view.

[0021] Figure 3This is a schematic diagram of the top view of a preferred embodiment of the flexible airtight cover of the present invention;

[0022] Figure 4 This is a schematic diagram showing the bottom view of a flexible airtight cover according to a preferred embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram from the top view of the first connecting component according to a preferred embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the bottom view of the first connecting component according to a preferred embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the operating platform according to a preferred embodiment of the present invention;

[0026] Figure 8 for Figure 2 A schematic diagram of a local section obtained by cutting the section line of AA';

[0027] In the diagram: 1. Cladding robotic arm; 11. Laser cladding head; 2. Working platform; 21. Support base; 22. Five-axis cradle turntable; 231. Second connecting component; 231. Outer frame; 232. Sheet metal strip; 233. Tightening sheet metal; 234. Sealed bearing; 4. Cladding chamber; 5. Flexible airtight cover; 51. First opening; 52. Second opening; 6. First connecting component: 611. 612. 613. 614. 62. Baffle lower cover; 621. 622. 623. Detailed Implementation

[0028] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings.

[0029] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] In the fields of additive manufacturing and laser cladding, the use of inert gas protection is beneficial to improving the quality of cladding products. However, existing inert gas protection devices generally suffer from drawbacks such as high cost and low efficiency.

[0032] refer to Figures 1-8 The present invention provides a cladding device, including a cladding robotic arm 1, a working platform 2, and a protective gas local airtight device. The protective gas local airtight device includes a first connecting component 6 and a flexible airtight cover 5. The top end of the flexible airtight cover 5 is connected to the cladding robotic arm 1 through the first connecting component 6, and the bottom end of the flexible airtight cover 5 is connected to the working platform 2. The flexible airtight cover 5, the cladding robotic arm 1, and the working platform 2 enclose a closed cladding chamber 4. A laser cladding head 11 is fixed on the robotic arm 1 and is located inside the cladding chamber 4.

[0033] The upper end of the airtight protective cover is fixed in place by a custom-designed tightening knob that engages with the groove of the lower cover of the first connecting component's baffle. It should be noted that this refers to the customization of size and force, ensuring that the size and tightening force of the tightening knob allow for a secure tightening of the airtight protective cover and the lower cover. The lower end of the airtight protective cover extends to cover the outer edge of the five-axis cradle and is sealed to ensure airtightness. The airtight protective cover can adapt to the movement path of the robotic arm and cradle, maintaining a high-concentration argon gas environment.

[0034] This invention utilizes a first connecting component and a flexible gas-tight cover to dynamically connect the robotic arm to the processing area. The flexible cover provides a stable argon environment within a small area, and its design allows the robotic arm to move freely, adapting to movement in all directions and providing greater operational flexibility. It also ensures the stability of the argon environment. The entire gas-tight cover is filled with a high concentration of xenon gas, ensuring a more stable and uniform argon protection for the molten pool area, thereby improving the stability of the additive manufacturing process and product quality.

[0035] In a preferred embodiment, the first connecting component 6 includes an upper baffle cover and a lower baffle cover 62. The lower baffle cover 62 has a window 621 at its center. One end of the cladding robotic arm 1 with a laser cladding head 11 passes through the window 621. The upper baffle cover is stacked and fixed on top of the lower baffle cover 62. The upper baffle cover has a locking notch 611 at its center, which is directly opposite to the window 621. The cladding robotic arm 1 is inserted into the locking notch 611, so that the upper baffle cover is fixed to the cladding robotic arm 1 through the locking notch 611.

[0036] In a preferred embodiment, the upper cover of the baffle includes two U-shaped splicing plates 612. When the two splicing plates 612 are spliced ​​together, the snap-fit ​​notch 611 is formed at the splicing position of the two splicing plates 612. The lower cover of the baffle 62 is provided with wire holes 622 for inserting cladding wires around the opening 621.

[0037] In a preferred embodiment, the top of the splicing plate 612 is provided with a threaded hole 613, which is an m6 threaded hole, and there are three threaded holes. The side of the splicing plate 612 is provided with a countersunk hole 614, and there are two countersunk holes.

[0038] There are several threading holes. The two U-shaped splicing plates 612 are designed to be disassembled and bypass the large wiring area below the cladding head, and to connect to the square structure of the cladding head, thus ensuring airtightness. The baffle plate cover has three vertical M6 threaded holes on each side and two parallel countersunk holes on the sides for connecting and tightening the two U-shaped structures, ultimately forming a hollow square, i.e., the snap-fit ​​notch 611. Through the disassembleable design of the two U-shaped splicing plates 612, the complex wiring area below the cladding head can be bypassed, and a hollow square frame is formed after splicing. Several M6 threaded holes and countersunk holes are distributed on it to ensure airtightness and strength after splicing.

[0039] The diameter of the opening 621 of the lower baffle cover 62 is larger than the diameter of the snap-fit ​​notch 611 of the upper baffle cover. Preferably, the lower baffle cover 62 is made of a disc, and the size of the opening 621 of the lower baffle cover is 80mm x 70mm. The opening 621 is used to pass under the cladding head from bottom to top. The lower baffle cover 62 is also provided with 6 M6 threaded holes for fixed connection with the upper cover.

[0040] In addition, the disc under the baffle 62 is also integrated with 8 openings for multiple pipes for feeding powder through the laser cladding head, as well as multiple openings for integrating digital pressure gauges, water and oxygen detector probes, argon gas delivery pipes and pressure relief valves. The diameter of the openings is matched to the multiple powder feeding pipes of the cladding head and the placement of the digital pressure gauges, water and oxygen detector probes, argon gas delivery pipes and pressure relief valves. In use, an arc groove is also provided around the disc for tightening and fixing the rope.

[0041] In a preferred embodiment, the top of the flexible airtight cover 5 is provided with a first opening 51 adapted to the first connecting component. The first opening 51 can cover the lower cover of the baffle. The top of the flexible airtight cover 5 is fitted onto the first connecting component 6 through the first opening 51, thereby achieving an airtight connection with the cladding robotic arm 1. The bottom of the flexible airtight cover 5 is provided with a second opening 52 adapted to the working platform 2. The bottom of the flexible airtight cover 5 is fitted onto the working platform 2 through the second opening 52.

[0042] In a preferred embodiment, an annular groove 623 is provided on the side wall edge of the lower cover 62 of the baffle. The annular groove 623 surrounds the side wall edge of the lower cover 62 of the baffle. The first opening 51 at the top of the flexible airtight cover 5 is fitted into the annular groove 623 by a first tightening component. That is, the flexible rope plays a tightening role. After the flexible rope tightens the first opening 51, the tightening knob limits and fixes it to prevent the flexible rope from loosening. That is, the first opening 51 at the top of the flexible airtight cover 5 is fixed by using a boa knob in conjunction with a customized flexible rope and the groove on the lower cover of the baffle. The second opening 52 at the bottom of the flexible airtight cover 5 is fixed by using airtight silicone stickers around the machine tool work platform and using retractable braided straps. Preferably, the flexible airtight cover is cylindrical in shape.

[0043] In a preferred embodiment, a first tightening component is provided at the first opening 51 on the flexible airtight cover for connecting the top of the flexible airtight cover 5 to the first connecting assembly 6, and a second tightening component is provided at the second opening 52 for connecting the bottom of the flexible airtight cover 5 to the working platform 2. The first tightening component includes a tightening knob and a flexible rope, and the second tightening component is an airtight silicone adhesive patch. The bottom cover of the baffle is circular in shape, and further, the bottom cover 62 of the baffle is a disc. The second opening 52 at the bottom of the flexible airtight cover 5 is fixed to the side wall of the working platform 2 by the second tightening component. Specifically, the tightening knob is a BOA knob. It should be noted that BOA is a device that tightens and fixes a rope by rotation, the purpose of which is to facilitate quick and easy fixation of the airtight membrane, and the tightening force can be changed by customization.

[0044] In a preferred embodiment, the work platform 2 includes a support base 21 and a five-axis cradle turntable 22. The five-axis cradle turntable 22 is rotatably mounted on the support base 21. The cladding robotic arm is a six-axis robotic arm. Further, the robotic arm 1 is an industrial-grade six-axis robotic arm. The two ends of the protective gas local airtight device are respectively connected to the work platform 2 and the robotic arm 1. A second connecting assembly is provided on the work platform 2. The second connecting assembly includes an outer frame 231, a sheet metal strip 232, and a hook-shaped tightening sheet metal 233. The outer frame 231 is sleeved on the periphery of the five-axis cradle turntable 22 and is fixed to the outside of the sealed bearing, serving as a flexible membrane and shaft. The flexible airtight membrane 5, serving as a transition component, has its lower edge tightened and fixed to the outer frame 231 via a braided strap. A sealed bearing 234 is provided between the outer periphery of the five-axis cradle turntable 22 and the outer frame 231. The sealed bearing is installed between the five-axis cradle turntable and the outer frame, forming a rotation interface. This allows the outer frame 231 to be rotatably connected to the side wall of the five-axis cradle turntable 22. As the cradle rotates, the sealed bearing moves accordingly, maintaining the airtightness of the cavity and preventing gas leakage during cradle rotation. The second opening 51 at the bottom of the flexible airtight cover 5 is fitted onto the outer frame 231, allowing the flexible airtight cover 5 to rotate relative to the five-axis cradle turntable 22. The lower bottom of the flexible airtight cover 5 can extend to cover the outer edge of the side wall of the five-axis cradle and is pressed and fixed by the outer frame. Through the sealed bearing 234, the flexible airtight cover 5 can adapt to the movement path of the robotic arm and the cradle, maintaining a high-concentration argon gas environment. This invention uses a five-axis cradle as the cladding base, replacing the traditional fixed worktable. The five-axis cradle has multiple degrees of freedom of motion and can support printing paths for more complex parts. The five-axis cradle, used in conjunction with a flexible membrane and a surrounding sealing structure, achieves high-tightness argon gas protection in complex spaces. The robotic arm 1 can be any robotic arm, such as a three-axis or five-axis robotic arm. The work platform can be any welding / laser cladding process involving robotic arms, such as a five-axis turntable or other conventional work platform. Essentially, it is compatible with the establishment of various types of local inert gas environments.

[0045] The upper end of the sheet metal strip is fixed to the outer frame, keeping the outer frame relatively stationary, while the lower end is fixed to the support base 21, ensuring the outer frame remains stationary relative to the support base 21 and does not rotate with the five-axis cradle turntable 22. The sheet metal strip design ensures the flexible membrane will not be twisted or pulled due to the rotation of the five-axis cradle. The sheet metal strip 232 constrains the outer frame 231, preventing accidental rotation of the outer frame 231 and the airtight cover 5 with the five-axis cradle turntable 22 or the sealed bearing 234, ensuring the flexible membrane of the airtight cover 5 will not be twisted or pulled due to the cradle's rotation. The outer frame 231 is rotatably connected to the five-axis cradle via bearings, and is fixed to the non-rotating base 21 at the bottom of the five-axis cradle via a positioning strip 232, thus ensuring the flexible membrane does not rotate with the rotating worktable of the five-axis cradle. The bearing 234 is an airtight bearing, serving a sealing function.

[0046] Preferably, the outer frame is a metal ring, and several hook-shaped tightening sheet metal 233s are evenly distributed on the outer wall of the metal ring. The tightening sheet metal 233s are fixed to the outer peripheral side wall of the outer frame. The shape of the tightening sheet metal 233s is hook-shaped, similar to a clothes hook, so that the tightening sheet metal 233s can be used to hang and tighten the woven tape. This makes it easy for a single person to quickly complete the tightening and positioning of the membrane, ensuring airtightness and ease of operation. The tightening sheet metal 233s further strengthen the connection between the flexible airtight cover and the outer frame, preventing the edge of the airtight cover from slipping off.

[0047] In a preferred embodiment, the flexible airtight cover 5 is composed of a flexible high-temperature resistant airtight membrane.

[0048] In a preferred embodiment, the flexible airtight cover 5 is made of PO or TPU, the film thickness of the flexible airtight cover 5 ranges from 0.12 to 0.18 mm, and the pressure of the protective gas inside the flexible airtight cover 5 ranges from 110 to 120 kPa.

[0049] This invention connects the robotic arm and the processing area by using a flexible, airtight cover. This flexible cover not only provides a stable argon environment within a small area, but also adapts to the movement of the robotic arm and provides efficient xenon protection.

[0050] In metal additive manufacturing, protective gases are widely used to prevent oxidation and other adverse reactions. Commonly used protective gases include argon and helium. Existing protection methods mainly fall into two categories: the first involves evacuating the entire processing area and injecting an inert gas; the second, typically for fixed processing stations or enclosed chambers, uses gas purging technology to protect the entire processing chamber. While these existing solutions provide effective protection, they have significant drawbacks: they are only applicable to fixed processing stations and cannot flexibly adapt to robotic arms; filling the entire room or chamber with argon is wasteful and costly; repeated evacuation and refilling are required before and after each processing step, resulting in substantial time costs; and real-time monitoring of key environmental indicators such as water and oxygen content is impossible. Furthermore, some existing technologies attempt to flush localized areas with high-pressure argon, but this method struggles to ensure stable protection and cannot adapt to the complex movements of robotic arms and cradles. To date, there are no domestic patents or solutions for localized argon protection in robotic arm and five-axis cradle additive manufacturing.

[0051] Compared with existing protective gas sealing solutions, the solution of this invention can achieve a local argon gas environment suitable for the metal additive manufacturing of robotic arms and five-axis cradles, and has the following advantages:

[0052] 1. The entire airtight enclosure is filled with a high concentration of xenon protective gas, ensuring that the molten pool area in the sealed cladding chamber 4 receives more stable and uniform argon protection, thereby improving the stability of the additive manufacturing process and product quality, and effectively enhancing the environmental stability of the argon protective gas.

[0053] 2. The local protective gas airtight solution of this invention provides xenon protection only within the processing area, avoiding the high-cost approach of building an argon environment for the entire workspace in traditional solutions. This not only saves the cost of rebuilding the entire factory and workspace, but also significantly reduces the consumption of protective gases such as argon, lowering production costs, and effectively preventing large-scale gas waste, thus improving resource utilization.

[0054] 3. The solution of this invention solves the problem of the fixed requirements of traditional sealed chambers for equipment. The range of the protective gas area can be adjusted according to specific needs, adapting to various additive manufacturing environments. The design of the flexible airtight enclosure, combined with the protective gas filled inside with a certain pressure, allows the robotic arm to move freely, providing greater operational flexibility.

[0055] 4. The solution of this invention effectively prevents powder from spreading outside the entire processing area, reducing the risk of environmental pollution. Preventing powder from entering the surrounding environment also avoids dust being inhaled by people or causing equipment malfunctions, thereby improving production safety and the health of the working environment.

[0056] 5. The first connecting component 6 is integrated through the upper cover and lower cover of the baffle plate. It can not only connect the robotic arm and the protective cover, but also integrate multiple interfaces to realize the circulation filtration of gases such as exhaust gas generated by large printed parts. It is also used to integrate water and oxygen content probes, digital pressure gauges, pressure relief valves, argon gas delivery pipes, etc. This highly integrated design makes the system more compact, convenient, easy to operate and maintain, and also improves the performance and reliability of the system, which helps to improve the finished quality of the cladding parts.

[0057] This invention relates to the field of metal additive manufacturing, specifically to laser cladding, inert gas protection, and the construction of local airtight environments, particularly a local argon gas protection method adapted for robotic arms and five-axis cradle additive manufacturing.

[0058] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A cladding device, characterized in that, The device includes a working platform, a cladding robotic arm, and a protective gas local airtight device. The protective gas local airtight device includes a first connecting component and a flexible airtight cover. The top end of the flexible airtight cover is connected to the cladding robotic arm through the first connecting component, and the bottom end of the flexible airtight cover is connected to the working platform. The flexible airtight cover, the cladding robotic arm, and the working platform enclose a closed cladding chamber. A laser cladding head is fixed on the robotic arm and is located inside the cladding chamber.

2. The cladding equipment as described in claim 1, characterized in that, The top of the flexible airtight cover is provided with a first opening adapted to the first connecting component, and the top of the flexible airtight cover is fitted onto the first connecting component through the first opening. The bottom of the flexible airtight cover is provided with a second opening adapted to the working platform, and the bottom of the flexible airtight cover is fitted onto the working platform through the second opening.

3. The cladding equipment as described in claim 1, characterized in that, The first connecting assembly includes an upper baffle and a lower baffle. The lower baffle has a window at its center, through which the cladding robotic arm passes. The upper baffle is stacked and fixed on top of the lower baffle. The upper baffle has a notch at its center, which is directly opposite the window. The cladding robotic arm is inserted into the notch, so that the upper baffle is fixed to the cladding robotic arm through the notch.

4. The cladding equipment as described in claim 3, characterized in that, The upper cover of the baffle includes two U-shaped splicing plates. When the two splicing plates are spliced ​​together, the splicing position of the two splicing plates forms the snap-fit ​​notch. The lower cover of the baffle is provided with wire-passing holes for inserting cladding wires around the opening.

5. The cladding equipment as described in claim 2, characterized in that, A first tightening component is provided at the first opening on the flexible airtight cover. The first tightening component is used to connect the top of the flexible airtight cover to the first connecting component. A second tightening component is provided at the second opening. The second tightening component is used to connect the bottom of the flexible airtight cover to the working platform. The lower cover of the baffle is a disc.

6. The cladding equipment as described in claim 3, characterized in that, The side wall edge of the lower cover of the baffle is provided with an annular groove, which surrounds the side wall edge of the lower cover of the baffle. The first opening at the top of the flexible airtight cover is fitted into the annular groove.

7. The cladding equipment as described in claim 1, characterized in that, The working platform includes a support base and a five-axis cradle turntable. The robotic arm is an industrial-grade six-axis robotic arm. A second connecting component is provided on the outer periphery of the five-axis cradle turntable. A sealed bearing is provided between the outer periphery of the five-axis cradle turntable and the second connecting component. The second opening at the bottom of the flexible airtight cover is fitted onto the second connecting component, so that the flexible airtight cover rotates relative to the five-axis cradle turntable.

8. The cladding equipment as described in claim 1, characterized in that, The flexible airtight cover is composed of a flexible, high-temperature resistant airtight membrane.

9. The cladding equipment as described in claim 8, characterized in that, The flexible airtight cover is made of PO or TPU.

10. The cladding equipment as described in claim 1, characterized in that, The membrane thickness of the flexible airtight cover ranges from 0.12 to 0.18 mm, and the pressure of the protective gas inside the flexible airtight cover ranges from 110 to 120 kPa.

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