Welding device and glass processing equipment

Abstract

The utility model relates to a welding device and glass processing equipment, the welding device comprises a welding cavity used for accommodating a to-be-welded piece, the inner wall of the welding cavity is attached to the outer wall of the to-be-welded piece, and the to-be-welded piece is provided with an opening communicated with the interior of the to-be-welded piece; the inflation inlet is communicated with the welding cavity and faces the opening; and the extraction opening is communicated with the welding cavity and is positioned at the opening. According to the welding device, when the to-be-welded part is welded, the inflation port inflates the interior of the to-be-welded part, and the exhaust port exhausts air between the to-be-welded part and the inner wall of the welding cavity, so that even if the to-be-welded part is deformed during welding, the inner wall of the welding cavity can be attached to the outer wall of the to-be-welded part, and the to-be-welded part can be welded. Therefore, the welding effect is guaranteed, and the size precision change of the to-be-welded part can be reduced at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of glass processing, and in particular to a welding device and glass processing equipment. Background Art

[0002] Glass has become one of the most widely used materials in human production and life due to its excellent light transmittance, high hardness and low manufacturing cost. With the development of the times, people's demand for glass products with more refined multilateral 3D structures is also increasing day by day.

[0003] Traditional polygonal 3D structured glass products usually use two or more pieces of flat glass. They are first spliced ​​face to face at low temperature to create a certain morphological structure. The glass is then melted at high temperature to complete the fusion of the individual glasses. However, during the high-temperature fusion process, the glass will deform due to the high temperature, which will ultimately affect the precision size of the product. Utility Model Content

[0004] Based on this, it is necessary to provide a welding device and glass processing equipment to address the problem that during the high-temperature welding process, the glass will deform due to the high temperature, which will eventually affect the precision size of the product.

[0005] A welding device, comprising:

[0006] A welding cavity, used to accommodate the workpiece to be welded, wherein the inner wall of the welding cavity is in contact with the outer wall of the workpiece to be welded, and the workpiece to be welded is formed with an opening communicating with the interior thereof;

[0007] an air filling port, connected to the welding cavity and facing the opening;

[0008] The air extraction port is communicated with the welding chamber and is located away from the opening.

[0009] In one embodiment, the welding device comprises a cover plate, a profiling member, a flow divider, and a static pressure member, wherein the profiling member and the flow divider are arranged on the static pressure member at one end in the first direction, and the profiling member and the flow divider are arranged with the cover plate at the other end in the first direction, and the cover plate, the profiling member, the flow divider, and the static pressure member are arranged to form the welding cavity;

[0010] Among them, the cover plate and the static pressure part are respectively attached to the two ends of the part to be welded in the first direction, the diverter part is attached to the circumferential side wall of the part to be welded, the diverter part faces the opening and is provided with the inflation port, and the static pressure part is provided with the exhaust port.

[0011] In one embodiment, the welding device also includes a supporting member, the supporting member is provided with a accommodating cavity and a accommodating port communicated with the accommodating cavity, the cover plate is installed on the supporting member and covers the accommodating port, and the contoured member, the diverter member and the static pressure member are all arranged in the accommodating cavity.

[0012] In one embodiment, the cover plate can be interlocked with the carrier.

[0013] In one of the embodiments, the welding device further comprises a pre-tightening member, which is arranged on a side of the contour member away from the diverter member and can apply a pre-tightening force to the contour member toward the diverter member.

[0014] In one of the embodiments, a guiding slope is provided on the contoured member, the guiding slope is inclined relative to the first direction, and the pre-tightening member abuts against the guiding slope and the bearing member respectively.

[0015] In one of the embodiments, a contact inclined surface is further provided on the preload member, and the contact inclined surface is parallel to the guide inclined surface and abuts against each other.

[0016] In one of the embodiments, an air inlet is provided on the cover plate, and the cover plate, the supporting member and the diverter member are all provided with gas flow channels that are interconnected. The gas flow channel on the cover plate is connected to the air inlet, and the gas flow channel on the diverter member is connected to the inflation port.

[0017] In one embodiment, the parts to be welded include an upper cover, a lower cover and a plurality of independent parts, the upper cover and the lower cover are respectively arranged at both ends of all the independent parts in the first direction, the plurality of independent parts are sequentially connected and arranged around the upper cover and the lower cover, and the opening is formed between the independent part located at the first position and the independent part located at the last position;

[0018] The profiling member includes a plurality of profiling sub-blocks, which are connected in sequence and correspond one to one with the plurality of independent members, and the surface of each profiling sub-block matches and fits the surface of the corresponding independent member.

[0019] A glass processing device comprises an air extraction device, an air delivery device and the above-mentioned welding device, wherein the air extraction device is connected to the air extraction port, and the air delivery device is connected to the air charging port.

[0020] In the above-mentioned welding device, when the workpiece to be welded is to be welded, the inflation port inflates air toward the interior of the workpiece to be welded, and the exhaust port extracts the air between the workpiece to be welded and the inner wall of the welding chamber, so that even if the workpiece to be welded is deformed during welding, the inner wall of the welding chamber can fit with the outer wall of the workpiece to be welded, thereby achieving the effect of shaping the workpiece to be welded, thereby ensuring the welding effect while reducing the change in dimensional accuracy of the workpiece to be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the welding device in some embodiments of the present application.

[0022] Figure 2 This is a schematic diagram of the structure of the parts to be welded in some embodiments of the present application.

[0023] Figure 3 for Figure 2 Schematic diagram of the exploded view of the parts to be welded in the embodiment.

[0024] Description of reference numerals:

[0025] Welding device 100; part to be welded 200; opening 210; upper cover 211; lower cover 212; independent part 213;

[0026] Welding cavity 10; filling port 11; exhaust port 12;

[0027] Cover plate 20; profiling member 21; flow divider 22; static pressure member 23; air inlet 24; profiling sub-block 25

[0028] Carrier 30; accommodating cavity 31; accommodating port 32; gas flow channel 33;

[0029] Preload member 40; guide slope 41; contact slope 42;

[0030] First direction X; DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0037] See also Figure 1 , Figure 1 The schematic diagram of the structure of the welding device 100 in one embodiment of the present application is shown. The welding device 100 provided in one embodiment of the present application includes the welding device 100, and the welding device 100 forms a welding cavity 10 for accommodating the workpiece 200 to be welded, and the inner wall of the welding cavity 10 is in contact with the outer wall of the workpiece 200 to be welded. When the workpiece 200 to be welded is welded, the workpiece 200 to be welded will be deformed by heat, but because the inner wall of the welding cavity 10 is in contact with the outer wall of the workpiece 200 to be welded, the welding device 100 can shape the workpiece 200 to be welded, and can reduce the change in the dimensional accuracy of the workpiece 200 to be welded while ensuring the welding effect.

[0038] Among them, during the welding process, the part 200 to be welded will not only expand outward, but also collapse inward, resulting in changes in the dimensional accuracy of the part 200 to be welded. For this reason, the part 200 to be welded is formed with an opening 210 connected to its own interior, and the welding device 100 also includes an inflation port 11, which faces the opening 210. The inflation port 11 is used to output gas, and the output gas enters the interior of the part 200 to be welded through the opening 210, so that the interior of the part 200 to be welded is in a high-pressure state. After being heated, the part 200 to be welded will expand, and the part 200 to be welded and the inner wall of the welding cavity 10 are more closely attached, thereby ensuring the dimensional accuracy of the part 200 to be welded.

[0039] Furthermore, in the actual welding process, due to the presence of a certain amount of air in the welding chamber 10, the outer wall of the workpiece 200 to be welded cannot be completely fitted with the inner wall of the welding chamber 10, thereby affecting the dimensional accuracy of the workpiece 200 to be welded after welding. For this reason, the welding device 100 also includes an exhaust port 12, which is connected to the welding chamber 10 and is located at the opening 210 of the workpiece 200 to be welded, so that the air between the inner wall of the welding chamber 10 and the workpiece 200 to be welded is extracted through the exhaust port 12, so that the workpiece 200 to be welded can be in close contact with the inner wall of the welding chamber 10, thereby further ensuring the dimensional accuracy of the workpiece 200 to be welded.

[0040] In the above-mentioned welding device 100, when the workpiece 200 to be welded is to be welded, the inflation port 11 inflates air toward the interior of the workpiece 200 to be welded, and the exhaust port 12 extracts the air between the workpiece 200 to be welded and the inner wall of the welding chamber 10, so that even if the workpiece 200 to be welded is deformed during welding, the inner wall of the welding chamber 10 can fit with the outer wall of the workpiece 200 to be welded, thereby achieving the effect of shaping the workpiece 200 to be welded, thereby ensuring the welding effect while reducing the change in dimensional accuracy of the workpiece 200 to be welded.

[0041] Optionally, the part to be fused 200 is formed by splicing together multiple glass pieces. When the part to be fused 200 is placed in the welding device 100, the welding device 100 is heated to melt the multiple glass pieces of the part to be fused 200, and the multiple glass pieces are welded to each other into a whole. Finally, after the welding device 100 is cooled down, a glass product can be obtained.

[0042] In some embodiments of the present application, the welding device 100 includes a cover plate 20, a profiling member 21, a flow divider 22 and a static pressure member 23. The profiling member 21 and the flow divider 22 are arranged on the static pressure member 23 at one end in the first direction X, and the profiling member 21 and the flow divider 22 are provided with a cover plate 20 at the other end in the first direction X. The cover plate 20, the profiling member 21, the flow divider 22 and the static pressure member 23 are arranged to form a welding chamber 10. Figure 1 In the embodiment, the bottom of the profiling member 21 and the diverter member 22 are arranged on the static pressure member 23, and the top of the profiling member 21 and the diverter member 22 is provided with a cover plate 20, and the closed welding chamber 10 is formed by splicing the cover plate 20, the profiling member 21, the diverter member 22 and the static pressure member 23 together.

[0043] Among them, the cover plate 20 and the static pressure part 23 are respectively attached to the two ends of the part to be welded 200 in the first direction X, that is, the top and bottom of the part to be welded 200 are shaped respectively by the cover plate 20 and the static pressure part 23, and the diverter part 22 is attached to the circumferential side wall of the part to be welded 200, and the side wall of the part to be welded 200 is shaped by the diverter part 22.

[0044] Furthermore, the diverter 22 is provided with an inflation port 11 facing the opening 210 , that is, the portion of the diverter 22 corresponding to the part 200 to be welded is the opening 210 , so the diverter 22 does not participate in the shaping of the part 200 to be welded, thereby preventing the inflation port 11 from affecting the shaping effect of the part 200 to be welded.

[0045] Furthermore, the static pressure part 23 is provided with an air extraction port 12, that is, the air extraction port 12 is arranged at the bottom of the welding chamber 10, so that the air extraction port 12 can be far away from the gas filling port 11, so as to prevent the air extraction port 12 from extracting the air flow inside the part to be welded 200, thereby affecting the expansion effect of the part to be welded 200. In the process of welding the part to be welded 200, the gas filling port 11 only needs to fill a certain amount of gas into the part to be welded 200 to ensure that the gas pressure inside the part to be welded 200 is at a certain level so that the part to be welded 200 can expand. Similarly, the air extraction port 12 only needs to extract a certain amount of gas to ensure that the part to be welded 200 can contact the inner wall of the welding chamber 10.

[0046] In some embodiments, the welding device 100 also includes a carrier 30, which is provided with a accommodating cavity 31 and a accommodating port 32 connected to the accommodating cavity 31. The cover plate 20 is installed on the carrier 30 and covers the accommodating port 32. The profiling member 21, the diverter member 22 and the static pressure member 23 are all arranged in the accommodating cavity 31. Since the profiling member 21, the diverter member 22 and the static pressure member 23 are all connected to each other in a splicing manner, the profiling member 21, the diverter member 22 and the static pressure member 23 are accommodated in the accommodating cavity 31, which can avoid separation between the profiling member 21, the diverter member 22 and the static pressure member 23, thereby improving the reliability of the welding device 100.

[0047] Specifically in some embodiments, the cover plate 20 can be interlocked with the supporting member 30, so that the cover plate 20 and the supporting member 30 can form a whole, and then the profiling member 21, the diverter member 22 and the static pressure member 23 can be fixed in the accommodating cavity 31, so as to avoid changes in the positions of the profiling member 21, the diverter member 22 and the static pressure member 23 during welding.

[0048] Specifically in some embodiments, the welding device 100 further includes a pre-tightening member 40, which is disposed at one end of the profiling member 21 away from the diverter member 22 and can apply a pre-tightening force to the profiling member 21 toward the diverter member 22. In actual use, the gas blown into the inflation port 11 will hit the inner wall of the end of the part 200 to be welded away from the inflation port 11, and then gradually diffuse in the part 200 to be welded, and when the gas hits one end of the part 200 to be welded, it will apply a certain impact force to the part 200 to be welded, and the impact force is transferred to the diverter member 22 via the part 200 to be welded.

[0049] In this way, after the welding device 100 is used for a long time, the diverter 22 will produce a certain deformation. The deformed diverter 22 cannot fit tightly against the workpiece 200 to be welded, resulting in a change in the size of the workpiece 200 to be welded. The pre-tightening force applied to the profiling member 21 toward the diverter by the pre-tightening member 40 can offset each other through the pre-tightening force and the impact force of the gas, thereby avoiding deformation of the profiling member 21 and allowing the profiling member 21 to always fit tightly against the workpiece 200 to be welded.

[0050] like Figure 2 and Figure 3 In the illustrated embodiment, the part 200 to be welded includes an upper cover 211, a lower cover 212 and a plurality of independent parts 213. The upper cover 211 and the lower cover 212 are respectively arranged at both ends of all the independent parts 213 in the first direction X. The plurality of independent parts 213 are sequentially connected and arranged around the upper cover 211 and the lower cover 212. An opening 210 is formed between the independent part 213 located in the first position and the independent part 213 located in the last position.

[0051] In order to make the profiling member 21 fit with the side wall of the part 200 to be welded, the profiling member 21 includes a plurality of profiling sub-blocks 25, and the plurality of profiling sub-blocks 25 are connected in sequence and correspond one to one to the plurality of independent parts 213. The surface of each profiling sub-block 25 matches and fits with the surface of the corresponding independent part 213, so that each independent part 213 can shape the corresponding independent part 213 individually to ensure the shaping effect.

[0052] Among them, a diverter 22 is provided at the opening 210, and a pre-tightening member 40 is provided on a side of the profiling sub-block 25 farthest from the diverter 22, and applies a pre-tightening force to the profiling sub-block 25 toward the diverter 22 to avoid deformation of the profiling sub-block 25 caused by long-term gas thrust, thereby ensuring a close fit between the profiling sub-block 25 and the independent member 213.

[0053] Specifically in some embodiments, a guide slope 41 is provided on the profiling member 21, and the guide slope 41 is inclined relative to the first direction X. The pre-tightening member 40 is respectively in contact with the guide slope 41 and the bearing member 30. When the welding device 100 is working, the first direction X is parallel to the gravity direction. Under the action of gravity, the pre-tightening member 40 on the guide slope 41 will apply a certain pressure to the guide slope 41. The pressure will be converted into a pre-tightening force that pushes the profiling member 21 to move horizontally through the guide slope 41, that is, the pre-tightening force is applied to the diverter 22 through the pre-tightening member 40. Specifically Figure 3 In the embodiment, the piece to be welded 200 includes three independent pieces 213 , the profiling piece 21 includes three profiling sub-blocks 25 , and the profiling sub-block 25 located in the middle is provided with a guiding inclined surface 41 , which abuts against the pre-tightening piece 40 .

[0054] Furthermore, a contact bevel 42 is provided on the preload member 40, and the contact bevel 42 is parallel to the guide bevel 41 and abuts against each other, so as to increase the contact area between the preload member 40 and the contour member 21 through the contact bevel 42 and the guide bevel 41, so that the preload force applied by the preload member 40 to the contour member 21 is more stable.

[0055] In some embodiments, in order to deliver gas outside the welding device 100 to the inflation port 11 on the diverter 22, an air inlet 24 is provided on the cover plate 20, and the air inlet 24 is used to be connected to an external gas source. The cover plate 20, the supporting member 30 and the diverter 22 are all provided with gas flow channels 33 that are interconnected. The gas flow channel 33 on the cover plate 20 is connected to the air inlet 24, and the gas flow channel 33 on the diverter 22 is connected to the inflation port 11.

[0056] In this way, the gas input from the air inlet 24 will pass through the gas flow channel 33 on the cover plate 20, the gas flow channel 33 on the carrier 30 in sequence, and finally enter the gas flow channel 33 on the diverter 22, and finally be discharged from the inflation port 11 of the diverter 22, and enter the interior of the part to be welded 200 through the opening 210 of the part to be welded 200.

[0057] An embodiment of the present application also provides a glass processing equipment, including an exhaust device, a gas supply device and a welding device 100 as in any of the above embodiments, the exhaust device is connected to the exhaust port 12 so as to extract the gas in the cavity to be welded 10 through the exhaust device, and the gas supply device is connected to the gas inlet 24, so that the input device can be connected to the filling port 11, and gas can be input into the filling port 11 through the gas supply device.

[0058] The above-mentioned welding device 100 has at least the following advantages:

[0059] When the workpiece 200 to be welded is to be welded, the inflation port 11 inflates air toward the interior of the workpiece 200 to be welded, and the exhaust port 12 extracts the air between the workpiece 200 to be welded and the inner wall of the welding chamber 10, so that even if the workpiece 200 to be welded is deformed during welding, the inner wall of the welding chamber 10 can fit with the outer wall of the workpiece 200 to be welded, thereby shaping the workpiece 200 to be welded, thereby ensuring the welding effect and reducing the change in dimensional accuracy of the workpiece 200 to be welded.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A welding device, characterized in that: The welding device comprises: A welding chamber (10) for accommodating a workpiece (200) to be welded, wherein an inner wall of the welding chamber (10) is in contact with an outer wall of the workpiece (200) to be welded, and the workpiece (200) to be welded is formed with an opening (210) communicating with its interior; An air filling port (11) communicates with the welding cavity (10) and faces the opening (210); The air extraction port (12) is connected to the welding chamber (10) and is located away from the opening (210).

2. The welding device according to claim 1, characterized in that: The welding device comprises a cover plate (20), a profiling member (21), a flow diverter member (22), and a static pressure member (23); the profiling member (21) and the flow diverter member (22) are arranged on the static pressure member (23) at one end in a first direction (X); the profiling member (21) and the flow diverter member (22) are arranged with the cover plate (20) at the other end in the first direction (X); the cover plate (20), the profiling member (21), the flow diverter member (22), and the static pressure member (23) are arranged to surround and form the welding cavity (10); The cover plate (20) and the static pressure piece (23) are respectively attached to the two ends of the part to be welded (200) in the first direction (X), the diverter piece (22) is attached to the circumferential side wall of the part to be welded (200), the diverter piece (22) faces the opening (210) and is provided with the inflation port (11), and the static pressure piece (23) is provided with the exhaust port (12).

3. The welding device according to claim 2, characterized in that: The welding device further comprises a carrier (30), the carrier (30) being provided with a receiving cavity (31) and a receiving opening (32) communicating with the receiving cavity (31), the cover plate (20) being mounted on the carrier (30) and covering the receiving opening (32), and the contoured member (21), the diverter member (22) and the static pressure member (23) being all arranged in the receiving cavity (31).

4. The welding device according to claim 3, characterized in that: The cover plate (20) can be buckled with the carrier (30).

5. The welding device according to claim 3, characterized in that: The welding device further comprises a pre-tightening member (40), which is arranged on a side of the profiling member (21) away from the diverter member (22) and is capable of applying a pre-tightening force to the profiling member (21) towards the diverter member (22).

6. The welding device according to claim 5, characterized in that: The contoured member (21) is provided with a guide inclined surface (41), the guide inclined surface (41) being arranged obliquely relative to the first direction (X), and the pre-tightening member (40) is respectively in contact with the guide inclined surface (41) and the bearing member (30).

7. The welding device according to claim 6, characterized in that: The pre-tightening member (40) is also provided with a contact inclined surface (42), wherein the contact inclined surface (42) is parallel to the guide inclined surface (41) and abuts against each other.

8. The welding device according to claim 3, characterized in that: The cover plate (20) is provided with an air inlet (24), and the cover plate (20), the supporting member (30) and the flow divider (22) are all provided with gas flow passages that are interconnected, the gas flow passage on the cover plate (20) being connected to the air inlet (24), and the gas flow passage on the flow divider (22) being connected to the inflation port (11).

9. The welding device according to claim 2, characterized in that: The parts to be welded (200) include an upper cover (211), a lower cover (212) and a plurality of independent parts (213); the upper cover (211) and the lower cover (212) are respectively arranged at two ends of all the independent parts (213) in a first direction (X); the plurality of independent parts (213) are sequentially connected and arranged around the upper cover (211) and the lower cover (212); the opening (210) is formed between the independent part (213) located at the first position and the independent part (213) located at the last position; The profiling member (21) comprises a plurality of profiling sub-blocks (25), the plurality of profiling sub-blocks (25) are connected in sequence and correspond one-to-one with the plurality of independent members (213), and the surface of each profiling sub-block (25) matches and fits the surface of the corresponding independent member (213).

10. A glass processing equipment, characterized in that: It comprises an air extraction device, an air supply device and the welding device (100) according to any one of claims 1 to 9, wherein the air extraction device is connected to the air extraction port (12), and the air supply device is connected to the air charging port (11).

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