Welding ram and welding apparatus

Abstract

The utility model relates to a kind of welding pressure head and welding equipment.Welding pressure head includes body part, pressing part and mounting piece.Wherein, pressing part is sleeved in body part, to form gas passage between the outside of body part and the inside of pressing part;Mounting piece includes the gas passage of being communicated with arrangement gas passage, and body part and pressing part are detachably set in mounting piece.By being sleeved in the outside of body part, during welding process, helium gas etc. Protective gas can be transported by the gas passage between pressing part and body part, ensure that protective gas can fully cover welding area, so as to improve the welding quality of welding piece.In addition, since pressing part and body part are detachably set in mounting piece, it is convenient to realize the quick installation, disassembly maintenance and replacement of pressing part and body part.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a welding pressure head and welding equipment. Background Technology

[0002] During welding, protective gases such as helium are needed to prevent oxidation and nitriding in the welding area, ensuring an oxygen-free environment for a dense and defect-free weld. However, in existing welding heads, the protective gas cannot adequately and effectively cover the welding area, leading to weld defects and affecting weld quality. Utility Model Content

[0003] Therefore, it is necessary to provide a welding head and welding equipment that improves upon the aforementioned defects, addressing the problem of poor protective gas protection in existing welding heads.

[0004] This application provides a welding pressure head, comprising:

[0005] The main body includes a laser channel that runs through it;

[0006] A pressing part is sleeved on the main body, and the outer side of the main body and the inner side of the pressing part are spaced apart to form a gas channel between the inner side and the outer side.

[0007] The mounting component includes a gas delivery channel that communicates with the gas channel, and the main body and the clamping part are detachably mounted on the mounting component.

[0008] By fitting the clamping part outside the main body, a gas channel is formed between them. During the welding process, when the clamping part presses against the workpiece, protective gases such as helium can be supplied through the gas channel between the clamping part and the main body, ensuring that the protective gas can fully cover the welding area, thereby improving the welding quality. In addition, since the clamping part and the main body are detachably mounted on the mounting component, quick disassembly and maintenance of the clamping part and the main body are easily achieved.

[0009] In some embodiments, the clamping part includes a through hole, the through hole including a first through hole and a second through hole that are connected together, the body part being accommodated in the first through hole to form the gas passage, and the second through hole being connected to the gas passage.

[0010] In some embodiments, the clamping part further includes an air outlet disposed on the side wall of the second through hole.

[0011] In some embodiments, the outer surface and the inner surface are coaxially arranged conical shapes, and the diameter of the conical shape gradually decreases in the direction away from the mounting member.

[0012] In some embodiments, the distance between the body portion and the pressing portion is adjustable to adjust the size of the gas passage.

[0013] In another aspect, this application provides a welding apparatus, comprising:

[0014] The aforementioned welding pressure head;

[0015] A positioning component is disposed on one side of the welding pressure head; and

[0016] A laser emitter is located on the other side of the welding head.

[0017] In some embodiments, the positioning component includes a first positioning element, the first positioning element comprising:

[0018] An adsorption section is disposed on the side of the first positioning member near the welding pressure head; and

[0019] A positioning protrusion is provided on the side of the first positioning member near the welding pressure head.

[0020] In some embodiments, the positioning protrusion is disposed on one side of the adsorption portion, and the positioning component further includes a second positioning member movably disposed on the other side of the adsorption portion.

[0021] In some embodiments, the welding equipment further includes a clamping assembly, which includes a clamping member disposed below the welding pressure head. The clamping member includes a first clamping portion, a second clamping portion, and a clamping space between the first clamping portion and the second clamping portion, which are spaced apart. The distance between the first clamping portion and the second clamping portion is adjustable to adjust the size of the clamping space.

[0022] In some embodiments, the clamping assembly further includes a push rod movably disposed on the underside of the clamping member.

[0023] In some embodiments, the welding equipment further includes a rotatable turntable, with a plurality of the first positioning elements disposed on the outer periphery of the turntable.

[0024] In some embodiments, the welding equipment further includes a cleaning component disposed on one side of the turntable, and the cleaning component is disposed downstream of the welding pressure head along the rotation direction of the turntable. The cleaning component includes:

[0025] A brush, positioned on one side of the turntable, is used to sweep and brush the first positioning component; and

[0026] A collection box, located on the underside of the brush, is used to collect the dust that falls off the brush.

[0027] In some embodiments, the welding equipment further includes an air knife disposed between the laser emitter and the welding head, the air knife comprising:

[0028] The hollow section is provided, penetrating the air knife component along the laser emission direction; and

[0029] An air blowing section is arranged radially toward the hollow section to form an airflow blocking section in the hollow section. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the welding pressure head in an embodiment of the present invention;

[0031] Figure 2 for Figure 1 The main view;

[0032] Figure 3 for Figure 2 Sectional view along AA;

[0033] Figure 4 for Figure 2 A cross-sectional view along BB;

[0034] Figure 5 This is a schematic diagram of the welding equipment in an embodiment of the present utility model;

[0035] Figure 6 for Figure 5 A magnified view of a portion of position C in the middle;

[0036] Figure 7 for Figure 5 A magnified view of a portion of position D in the middle;

[0037] Figure 8 for Figure 5 Top view;

[0038] Figure 9 for Figure 8 A magnified view of a portion of position E in the middle;

[0039] Figure 10 This is a schematic diagram of the welding equipment after the laser emitter and air knife have been removed, showing a different angle in this embodiment of the invention.

[0040] Figure 11 for Figure 10 A magnified view of a portion of position F in the middle;

[0041] Figure 12 This is a schematic diagram of the welding equipment after the laser emitter and air knife have been removed from another angle in this embodiment of the present invention;

[0042] Explanation of reference numerals in the attached figures:

[0043] 1 Welding head; 11 Body, 111 Laser channel, 112 Outer side; 12 Clamping part, 121 Inner side, 122 Through hole, 1221 First through hole, 1222 Second through hole, 123 Gas outlet; 13 Gas channel; 14 Mounting part, 141 Gas delivery channel;

[0044] 2. Positioning assembly; 21. First positioning element; 211. Adsorption part; 212. Positioning protrusion; 22. Second positioning element;

[0045] 3 laser emitters;

[0046] 4 clamping assembly; 41 clamping member; 411 first clamping part; 412 second clamping part; 413 clamping space; 42 push rod;

[0047] 5 turntables;

[0048] 6 cleaning components, 61 brushes, 62 collection boxes;

[0049] 7 air cutter parts, 71 hollow part, 72 air blowing part;

[0050] 8 cylindrical batteries, 81 caps, 82 tabs. Detailed Implementation

[0051] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] Furthermore, 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In this utility model, unless otherwise explicitly 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.

[0056] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0057] To better understand the embodiments of this application, the following is combined with... Figures 1 to 12 The embodiments of this application will be described in detail.

[0058] like Figures 1 to 4As shown, this application provides a welding pressure head 1, including a body 11, a clamping part 12, and a mounting part 14. The body 11 includes a through-type laser channel 111; the clamping part 12 is sleeved on the body 11, with the outer surface 112 of the body 11 and the inner surface 121 of the clamping part 12 spaced apart to form a gas channel 13 between the inner surface 121 and the outer surface 112; the mounting part 14 includes a gas delivery channel 141 communicating with the gas channel 13, and the body 11 and the clamping part 12 are detachably mounted on the mounting part 14.

[0059] The body part 11 includes a laser channel 111, which is disposed throughout the entire body part 11 to ensure that the welding laser can pass through the body part 11 and act on the welding area of ​​the workpiece, thereby ensuring the welding quality.

[0060] The clamping part 12 is used to abut against the weldment during the welding process, thereby ensuring close contact between the welding areas of the two weldment parts and thus guaranteeing welding quality. The clamping part 12 is sleeved on the body part 11, that is, the clamping part 12 has a hollow structure to accommodate the body part 11, so that a gas channel 13 for conveying protective gas can be formed between the two. Specifically, when the clamping part 12 is sleeved on the body part 11, since the outer surface 112 of the body part 11 and the inner surface 121 of the clamping part 12 are spaced apart (that is, the size of the hollow structure of the clamping part 12 is larger than that of the body part 11), a gas channel 13 can be formed between the inner surface 121 and the outer surface 112. In this way, during the welding process, protective gas such as helium can be conveyed to the welding area through the gas channel 13 between the clamping part 12 and the body part 11, thereby ensuring that the protective gas can fully and effectively cover the welding area and thus guaranteeing welding quality.

[0061] The main body 11 and the clamping part 12 are detachably mounted on the mounting part 14. Specifically, the detachable connection between the main body 11 and the clamping part 12 and the mounting part 14 can be achieved by bolt connection or by snap-fit ​​connection; this embodiment does not limit this. Detachably mounting the main body 11 and the clamping part 12 on the mounting part 14 not only enables quick installation and maintenance of the main body 11 and the clamping part 12, but also allows for quick adjustment of the main body 11 and the clamping part 12 according to different welding requirements, improving the applicability of the welding head 1. In addition, the mounting part 14 includes a gas supply channel 141 connected to the gas channel 13. This allows external protective gas to be supplied to the gas channel 13 through the gas supply channel 141, ensuring an effective supply of protective gas in the welding area and thus guaranteeing the welding quality of the welded parts.

[0062] By fitting the clamping part 12 onto the main body 11, protective gases such as helium can be supplied through the gas channel 13 between the clamping part 12 and the main body 11 during the welding process, ensuring that the protective gas can fully cover the welding area, thereby improving the welding quality of the welded parts. In addition, since the clamping part 12 and the main body 11 are detachably mounted on the mounting part 14, it is convenient to quickly install, disassemble, repair, and replace the clamping part 12 and the main body 11.

[0063] like Figure 3 and Figure 4 As shown, in some embodiments, the pressing part 12 includes a through hole 122, which includes a first through hole 1221 and a second through hole 1222 connected together. The body part 11 is accommodated in the first through hole 1221 to form a gas channel 13, and the second through hole 1222 is connected to the gas channel 13.

[0064] The clamping part 12 includes a through hole 122. By providing the through hole 122, on the one hand, the main body part 11 can be accommodated to form a gas channel 13, and on the other hand, it can ensure that the welding laser is accurately applied to the welding area and that the protective gas is delivered to the welding area.

[0065] Specifically, the through hole 122 includes a first through hole 1221 and a second through hole 1222 that are connected together. The first through hole 1221 is used to accommodate the body part 11. It should be noted that the size of the first through hole 1221 is larger than that of the body part 11, so as to ensure that after the body part 11 is inserted into the first through hole 1221, a gas channel 13 can be formed between the outer side surface 112 of the body part 11 and the inner wall of the first through hole 1221.

[0066] Furthermore, the second through hole 1222 is connected to the gas channel 13, allowing it to receive protective gas from the gas channel 13 and ensuring that the protective gas evenly fills the second through hole 1222. When the clamping part 12 is pressed against one side of the weldment, since the second through hole 1222 directly covers one side of the welding area, the protective gas can fully, evenly, and continuously cover the welding area, ensuring that welding in the welding area can be carried out in an oxygen-free environment and improving welding quality.

[0067] like Figure 1 , 3 and Figure 4 As shown, in some embodiments, the clamping part 12 further includes an air outlet 123 disposed on the side wall of the second through hole 1222.

[0068] By setting an outlet 123 on the side wall of the second through hole 1222, the protective gas can be discharged from the outlet 123, thereby realizing the flow and circulation of the protective gas in the second through hole 1222. This not only allows for the timely replenishment of fresh protective gas, but also allows welding slag and other dust impurities to be discharged from the outlet 123 along with the used protective gas, thus improving the welding quality.

[0069] like Figure 1 , 3 and Figure 4 As shown, in some embodiments, the outer surface 112 and the inner surface 121 are coaxially arranged conical shapes, and the diameter of the cone gradually decreases in the direction away from the mounting member 14.

[0070] On the one hand, the outer surface 112 and the inner surface 121 are conical. Compared with shapes with corners, such as squares, the conical shape can avoid the corners affecting the gas flow direction and causing turbulence, ensuring that the shielding gas can be smoothly input into the welding area, thereby achieving uniformity and consistency of the shielding gas in the welding area. On the other hand, the outer surface 112 and the inner surface 121 are coaxially arranged. In this way, the size of the gas channel 13 formed between the outer surface 112 and the inner surface 121 can be consistent, thereby ensuring the uniformity and consistency of the shielding gas delivered from the gas channel 13, and thus improving the consistency of the welding.

[0071] The diameter of the cone gradually decreases away from the mounting part 14, that is, the outer side 112 and the inner side 121 are funnel-shaped, so that the gas channel 13 is also gradually narrowing into a funnel shape, thereby allowing the gas in the gas channel 13 to gradually narrow and act accurately on the welding area.

[0072] In some embodiments, the distance between the body portion 11 and the pressing portion 12 is adjustable to adjust the size of the gas passage 13.

[0073] Since the outer surface 112 and the inner surface 121 are coaxially arranged conical shapes, when the distance between the body portion 11 and the pressing portion 12 decreases, the depth to which the body portion 11 is inserted into the pressing member 12 increases, while the distance between the outer surface 112 and the inner surface 121 decreases, thereby reducing the size of the gas passage 13. Conversely, when the distance between the body portion 11 and the pressing portion 12 increases, the depth to which the body portion 11 is inserted into the pressing member 12 decreases, while the distance between the outer surface 112 and the inner surface 121 increases, thereby increasing the size of the gas passage 13.

[0074] By adjusting the distance between the main body 11 and the pressing part 12, the size of the gas channel 13 can be adjusted according to actual production needs to regulate the flow rate of the protective gas and improve the applicability of the welding head 1.

[0075] Specifically, such as Figure 1 and Figure 4 As shown, the body portion 11 and the clamping portion 12 are respectively disposed on both sides of the mounting member 14 along the thickness direction. In this case, the distance between the body portion 11 and the clamping portion 12 can be adjusted by changing the thickness of the mounting member 14, thereby adjusting the size of the gas passage 13. Alternatively, a gasket can be provided between the body portion 11 and the mounting member 14 and / or between the clamping portion 12 and the mounting member 14, and the distance between the body portion 11 and the clamping portion 12 can be adjusted by changing the thickness of the gasket, thereby adjusting the size of the gas passage 13. Of course, the distance adjustment between the body portion 11 and the clamping portion 12 can also be achieved in other ways, and this embodiment does not limit this.

[0076] like Figures 5 to 12 In another aspect, this application provides a welding apparatus, including a welding head 1, a positioning component 2, and a laser emitter 3. The positioning component 2 is disposed on one side of the welding head 1; the laser emitter 3 is disposed on the other side of the welding head 1.

[0077] Welding equipment refers to equipment used to join a first weldment and a second weldment together using laser welding. Specifically, the weldment can be any component that requires a welded connection, such as... Figure 9 and 11 As shown, in the field of cylindrical battery manufacturing, the welded component can be a cylindrical battery 8, and the first and second welded components are a cap 81 and a tab 82 disposed at one end of the cylindrical battery 8, respectively. The tab 82 and the cap 81 are welded together using welding equipment. Of course, the welded component can also be other components that require welding to achieve connection, and this application embodiment does not limit this. For ease of description, the following description uses a cylindrical battery 8 as the welded component and a cap 81 and a tab 82 as the first and second welded components, respectively.

[0078] Positioning component 2 refers to a component used to fix the cylindrical battery 8 to the welding equipment. Positioning component 2 ensures the precise position of the cylindrical battery 8 within the welding equipment, thereby guaranteeing its fixed and accurate position during welding and ensuring welding precision. Specifically, positioning component 2 can be a clamping device such as a gripper, which clamps and fixes the cylindrical battery 8 to ensure its precise position. Positioning component 2 can also be a magnetic adsorption device or a vacuum adsorption device, using magnetic force or negative pressure adsorption to fix the cylindrical battery 8. Of course, positioning component 2 can also be other positioning mechanisms, and this application embodiment does not limit this.

[0079] Laser emitter 3 refers to a component capable of emitting welding laser. The welding laser emitted by laser emitter 3 can melt the material in the welding area of ​​cylindrical battery 8, thereby achieving the welding connection between cap 81 and tab 82.

[0080] Positioning component 2 is located on one side of welding head 1, and laser emitter 3 is located on the other side of welding head 1. That is, positioning component 2 and laser emitter 3 are respectively located on both sides of welding head 1. During welding, cylindrical battery 8 is fixed in positioning component 2, and welding head 1 abuts against one side of welding area of ​​cylindrical battery 8 to ensure tight fit between cap 81 and electrode 82 welding area. Then, laser emitter 3 emits welding laser, which passes through laser channel 111 and acts on welding area to achieve welding connection between cap 81 and electrode 82.

[0081] By using the welding head 1 in the welding equipment, protective gases such as helium can be supplied through the gas channel 13 between the clamping part 12 and the main body 11 during the welding process, ensuring that the protective gas can fully cover the welding area, thereby improving the welding quality of the cylindrical battery 8. In addition, since the clamping part 12 and the main body 11 are detachably mounted on the mounting part 14, it is convenient to quickly install, disassemble, repair, and replace the clamping part 12 and the main body 11.

[0082] like Figures 5 to 7 As shown in 10 and 11, in some embodiments, the positioning component 2 includes a first positioning member 21, which includes an adsorption portion 211 and a positioning protrusion 212. The adsorption portion 211 is disposed on the side of the first positioning member 21 near the welding pressure head 1; the positioning protrusion 212 protrudes from the side of the first positioning member 21 near the welding pressure head 1.

[0083] An adsorption part 211 is disposed on the side of the first positioning member 21 near the welding pressure head 1, thereby adsorbing and fixing the cap 81 on the side of the first positioning member 21 near the welding pressure head 1. Specifically, the adsorption part 211 is an adsorption hole disposed on the side of the first positioning member 21, and the adsorption part 211 is connected to the vacuum generator, so that the cap 81 is adsorbed and fixed in the first positioning member 21 through the adsorption part 211, ensuring the accurate relative position between the welding area of ​​the cap 81 and the welding pressure head, thereby ensuring the welding accuracy of the cap 81 and the tab 82.

[0084] The positioning protrusion 212 is provided on the side of the first positioning member 21 near the welding pressure head 1. When the cap 81 is adsorbed and fixed in the adsorption part 211, the positioning protrusion 212 can ensure the precise relative position of the cap 81 in the first positioning member 21, thereby ensuring the welding accuracy of the cylindrical battery 8. Specifically, in some embodiments, the cap 81 is provided with a positioning groove, and the precise positioning of the cap 81 in the first positioning member 21 is achieved through the cooperation between the positioning groove and the positioning protrusion 212. In other embodiments, the positioning protrusion 212 is provided on one side of the adsorption part 211. When the cap 81 is adsorbed and fixed in the adsorption part 211, the precise positioning of the cap 81 in the first positioning member 21 can be achieved by the abutment of the edge of the cap 81 with the positioning protrusion 212.

[0085] like Figure 5 As shown, in some embodiments, the positioning protrusion 212 is disposed on one side of the adsorption part 211, and the positioning component 2 further includes a second positioning member 22 that is movably disposed on the other side of the adsorption part 211.

[0086] The positioning protrusion 212 is disposed on one side of the adsorption part 211, and the positioning component 2 also includes a second positioning member 22 that is movably disposed on the other side of the adsorption part 211. That is, the positioning protrusion 212 and the second positioning member 22 are respectively disposed on both sides of the adsorption part 211. When the cap 81 is adsorbed and fixed to the adsorption part 211, the second positioning member 22 can move in the direction close to the adsorption part 211, thereby pushing the cap 81 to abut against the positioning protrusion 212, thereby ensuring the accurate position of the cap 81 in the positioning component 2.

[0087] Specifically, the movable setting of the second positioning member 22 can be achieved by a guide rail slider mechanism or a ball screw mechanism, or by direct pushing by an electric cylinder, pneumatic cylinder or hydraulic cylinder. This application embodiment does not limit this.

[0088] like Figure 9 and Figure 12 As shown, in some embodiments, the welding equipment further includes a clamping assembly 4, which includes a clamping member 41 disposed on the lower side of the welding head 1. The clamping member 41 includes a first clamping part 411, a second clamping part 412 and a clamping space 413 between the first clamping part 411 and the second clamping part 412, which are spaced apart. The spacing between the first clamping part 411 and the second clamping part 412 is adjustable to adjust the size of the clamping space 413.

[0089] The clamping member 41 is a component used to clamp and fix the cylindrical battery 8. The clamping member 41 is located on the lower side of the welding head 1, so that when the cylindrical battery 8 is clamped and fixed to the clamping member 41, the welding area of ​​the tab 82 at the upper end of the cylindrical battery 8 can be located on one side of the welding head 1, ensuring that the welding head 1 can accurately act on the welding area of ​​the cap 81 and the tab 82.

[0090] Specifically, the clamping member 41 includes a first clamping portion 411 and a second clamping portion 412 spaced apart. The spaced arrangement of the first clamping portion 411 and the second clamping portion 412 creates a clamping space 413 between them for clamping the cylindrical battery 8. In some embodiments, the surfaces of the first clamping portion 411 and the second clamping portion 412 that are close to each other can be recessed to form a clamping space 413 that matches the shape of the welded component, such as the cylindrical battery 8. This ensures that the welded component, such as the cylindrical battery 8, can be stably confined within the clamping space 413 of the clamping member 41, preventing displacement of the welded component and affecting the welding quality. For example, when the welded component is a cylindrical battery 8, the surfaces of the first clamping portion 411 and / or the second clamping portion 412 that are close to each other are provided with cylindrical recesses to limit the cylindrical battery 8.

[0091] The spacing between the first clamping part 411 and the second clamping part 412 is adjustable. Specifically, one of the first clamping part 411 and the second clamping part 412 can be movable, or both the first clamping part 411 and the second clamping part 412 can be movable. By making the first clamping part 411 and / or the second clamping part 412 movable, the clamping space 413 can be expanded or reduced, thereby achieving the clamping and releasing of welded components such as the cylindrical battery 8. It should be noted that the movable arrangement of the first clamping part 411 and / or the second clamping part 412 can be achieved by a guide rail slider mechanism, or by a lead screw mechanism, gear and rack mechanism, etc. The embodiments of this application do not limit this.

[0092] By setting the clamping member 4, the clamping and releasing of welded components such as the cylindrical battery 8 can be achieved by changing the interval between the first clamping part 411 and the second clamping part 412. For example, when it is necessary to load materials or adjust the relative position of welded components such as the cylindrical battery 8, the interval between the first clamping part 411 and the second clamping part 412 can be increased, thereby increasing the clamping space 413, and then the welded components such as the cylindrical battery 8 can be placed in the clamping space 413 or the position of the welded components such as the cylindrical battery 8 in the clamping member 4 can be adjusted. Then, the interval between the first clamping part 411 and the second clamping part 412 can be decreased, thereby achieving clamping and fixing of welded components such as the cylindrical battery 8, preventing the welded components such as the cylindrical battery 8 from shifting, and ensuring positioning accuracy and welding accuracy.

[0093] like Figure 12 As shown, in some embodiments, the clamping assembly 4 further includes a push rod 42 movably disposed on the underside of the clamping member 41.

[0094] The push rod 42 is movably disposed on the lower side of the clamping member 41. The movement of the push rod 42 can drive the movement of the cylindrical battery 8, thereby adjusting the relative position between the tab 82 and the cap 81, ensuring the overlap of their welding areas, and thus ensuring welding quality. Similarly, the movable setting of the push rod 42 can be realized by a guide rail slider mechanism, or by a lead screw mechanism, gear and rack mechanism, etc., and this application embodiment does not limit this.

[0095] Specifically, when the relative position of the tabs 82 needs to be adjusted, the distance between the first clamping part 411 and the second clamping part 412 increases, thereby releasing the cylindrical battery 8. At this time, the height of the cylindrical battery 8 can be adjusted by extending or retracting the push rod 42, thereby adjusting the relative position of the tabs 82 and the cap 81 to ensure their precise positioning. After the adjustment is completed, the distance between the first clamping part 411 and the second clamping part 412 decreases, thereby clamping and fixing the cylindrical battery 8, preventing the cylindrical battery 8 from shifting and ensuring positioning accuracy.

[0096] like Figures 5 to 8 As shown, in some embodiments, the welding equipment further includes a rotatable turntable 5, with a plurality of first positioning elements 21 disposed on the outer periphery of the turntable 5.

[0097] By setting multiple first positioning elements 21 on the outer periphery of the turntable 5, when the turntable 5 rotates, the multiple first positioning elements 21 on the outer periphery of the turntable 5 can sequentially pass through the welding positions corresponding to the welding pressure head, thereby realizing continuous welding of cylindrical battery 8 and other welded parts and improving the welding speed. In addition, the multiple first positioning elements 21 set on the outer periphery of the turntable 5 can distribute the loading, positioning, welding, unloading and other processes in different positions, so that different processes can be performed simultaneously, thereby improving the welding speed of cylindrical battery 8 and other welded parts.

[0098] like Figure 5 and Figure 7 As shown, in some embodiments, the welding equipment further includes a cleaning component 6 disposed on one side of the turntable 5, and the cleaning component 6 is disposed downstream of the welding pressure head 1 along the rotation direction of the turntable 5. The cleaning component 6 includes a brush 61 and a collection box 62. The brush 61 is disposed on one side of the turntable 5 and is used to sweep the first positioning component 21; the collection box 62 is disposed below the brush 61 and is used to collect the dust brushed off.

[0099] The cleaning component 6 refers to the component used to clean the first positioning component 21. The cleaning component 6 is located downstream of the welding head 1 along the rotation direction of the turntable 5. That is, after welding is completed in the area corresponding to the welding head 1, the first positioning component 21 is transported to the area corresponding to the cleaning component 6 as the turntable 5 rotates, so as to clean the first positioning component 21 by the cleaning component 6, so as to remove impurities attached to the surface of the first positioning component 21 during the welding process or transfer process, ensuring the accurate fixation of the cap 81 while preventing impurities from scratching or denting the cap 81.

[0100] Specifically, the cleaning component 6 includes a brush 61 and a collection box 62. The brush 61 is positioned on one side of the turntable 5. As the first positioning component 21 rotates with the turntable 5, the brush 61 automatically sweeps the side of the first positioning component 21, ensuring the cleaning of the suction part 211 and the positioning protrusion 212. The collection box 62 is located below the brush 61. When the brush 61 sweeps the first positioning component 21, the brushed-off impurities fall into the collection box 62 under its own gravity, achieving automatic collection of brushed-off dust.

[0101] In some embodiments, the welding equipment further includes unloading and loading positions respectively disposed upstream and downstream of the cleaning component 6 along the rotation direction of the turntable 5. In this way, after the welding of the cylindrical battery 8 and other welding components is completed, the processes of unloading, cleaning, loading and welding of the first positioning component 21 can be sequentially realized as the turntable 5 rotates.

[0102] In some embodiments, the second positioning member 22 is disposed downstream of the loading position along the rotation direction of the turntable 5 to achieve secondary positioning of the cap 82 in the first positioning member 21, thereby ensuring the accurate position of the cap 82 in the first positioning member 21.

[0103] In some embodiments, the welding equipment includes at least five first positioning members 21 evenly distributed around the outer periphery of the turntable 5. That is, the angles formed by the lines connecting adjacent first positioning members 21 and the rotation center of the turntable are equal. This ensures that the turntable 5 rotates at the same angle each time (i.e., the angle formed by the lines connecting adjacent first positioning members 21 and the rotation center of the turntable), facilitating motion control of the turntable 5. In addition, in some embodiments, along the rotation direction of the turntable 5, the outer periphery of the turntable 5 is sequentially provided with a loading position, a second positioning member 22, a welding pressure head 1, a unloading position, and a cleaning member 6. Furthermore, the angles formed by adjacent loading positions, second positioning members 22, welding pressure heads 1, unloading positions, and cleaning members 6 and the lines connecting them to the rotation center of the turntable are equal, and also equal to the angles formed by adjacent first positioning members 21 and the lines connecting them to the rotation center of the turntable. In this way, when the turntable 5 rotates at the above angle, the loading position, the second positioning component 22, the welding pressure head 1, the unloading position, and the cleaning component 6 can all be set to correspond with a certain first positioning component 21 on the outer periphery of the turntable 5. This allows for the simultaneous execution of loading, positioning, welding, unloading, and cleaning processes, simplifying the motion control of the turntable 5 while increasing the welding speed of the welding equipment.

[0104] like Figure 5 As shown, in some embodiments, the welding equipment further includes an air knife 7 disposed between the laser emitter 3 and the welding head 1. The air knife 7 includes a hollow portion 71 and an air blowing portion 72. The hollow portion 71 is disposed through the air knife 7 along the laser emission direction; the air blowing portion 72 is disposed radially toward the hollow portion 71 to form an airflow blocking portion in the through hole.

[0105] The air knife 7 is positioned between the laser emitter 3 and the welding head 1. During the welding process, it can prevent welding slag and other dust particles from splashing into the laser emitter 3, causing contamination of the laser emitter 3, affecting the energy and accuracy of the laser emitted by the laser emitter 3, and thus affecting the welding quality.

[0106] Specifically, the air knife 7 includes a hollow portion 71 and an air-blowing portion 72. The hollow portion 71 is disposed through the air knife 7 along the laser emission direction, preventing the air knife 7 from blocking the welding laser and ensuring welding quality. Furthermore, the air-blowing portion 72 is radially positioned towards the hollow portion 71, allowing the airflow from the air-blowing portion 72 to fill the hollow portion 71, forming an airflow barrier within the hollow portion 71 to block dust and impurities during the welding process, thereby protecting the laser emitter 3.

[0107] In some embodiments, the air blowing part 72 is an air outlet slit provided on the inner sidewall of the hollow part 71. The air outlet slit is provided around the inner sidewall of the hollow part 71 to ensure that airflow is formed throughout the entire hollow part 71, thereby ensuring the blocking function of the air knife 7.

[0108] By setting the air knife component 7, it is possible to ensure that the welding laser of the laser emitter 3 can accurately act on the welding area, and also to block the dust and impurities generated during the welding process, thus protecting the laser emitter 3.

[0109] Specifically, such as Figures 1 to 12 As shown, during feeding, the cylindrical battery 8 is clamped in the clamping member 4, and the cap 81 in the feeding position is fed into the first positioning member 21 and fixed to the first positioning member 21 under the adsorption of the adsorption part 211.

[0110] Subsequently, the turntable 5 rotates at a preset angle, causing the first positioning member 21 to rotate to one side of the second positioning member 22. The second positioning member 22 moves closer to the first positioning member 21 and pushes the cap 81 to abut against the positioning protrusion 212, thereby achieving precise positioning of the cap 81 in the first positioning member 21.

[0111] The turntable 5 rotates again by a preset angle, causing the first positioning component 21 to rotate to one side of the welding head 1. Simultaneously, driven by the push rod 42, it ensures the accurate relative position between the tab 81 and the cap 81 at the upper end of the cylindrical battery 8. Subsequently, the clamping part 12 of the welding head 1 presses the tab 82 and the cap 81 together. Protective gas is delivered through the gas channel 13 between the body part 11 and the clamping part 12 to the welding area on one side of the tab 82. This ensures that the welding area is in an oxygen-free environment during the welding process of the laser emitter 3 emitting a welding laser to weld the tab 82 and the cap 81, improving welding quality. After welding is completed, the cap 81 is removed from the first positioning component 21.

[0112] Turntable 5 rotates again by a preset angle so that the first positioning component 21 rotates to one side of the cleaning component 6, completing the cleaning of the first positioning component 21; finally, turntable 5 rotates again by a preset angle so that the first positioning component 21 returns to the loading position, and the cap 81 is loaded again for the next welding process, and so on.

[0113] It should be noted that the above workflow is only described for a single first positioning component 21. In actual operation, multiple first positioning components 21 complete the above processes simultaneously to ensure the continuity of the welding process and improve the welding speed.

[0114] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0115] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A welding pressure head, characterized in that, The welding pressure head includes: The main body includes a laser channel that runs through it; A pressing part is sleeved on the main body, and the outer side of the main body and the inner side of the pressing part are spaced apart to form a gas channel between the inner side and the outer side. The mounting component includes a gas delivery channel that communicates with the gas channel, and the main body and the clamping part are detachably mounted on the mounting component.

2. The welding pressure head according to claim 1, characterized in that, The pressing part includes a through hole, which includes a first through hole and a second through hole that are connected to each other. The body part is accommodated in the first through hole to form the gas channel, and the second through hole is connected to the gas channel.

3. The welding pressure head according to claim 2, characterized in that, The clamping part also includes an air outlet disposed on the side wall of the second through hole.

4. The welding pressure head according to any one of claims 1 to 3, characterized in that, The outer and inner surfaces are coaxially arranged conical shapes, and the diameter of the cone gradually decreases in the direction away from the mounting component.

5. The welding pressure head according to claim 4, characterized in that, The distance between the main body and the pressing part is adjustable to adjust the size of the gas channel.

6. A welding device, characterized in that, The welding equipment includes: The welding pressure head according to any one of claims 1 to 5; A positioning component is disposed on one side of the welding pressure head; and A laser emitter is located on the other side of the welding head.

7. The welding equipment according to claim 6, characterized in that, The positioning component includes a first positioning element, the first positioning element comprising: An adsorption section is disposed on the side of the first positioning member near the welding pressure head; and A positioning protrusion is provided on the side of the first positioning member near the welding pressure head.

8. The welding equipment according to claim 7, characterized in that, The positioning protrusion is disposed on one side of the adsorption part, and the positioning component further includes a second positioning member movably disposed on the other side of the adsorption part.

9. The welding equipment according to claim 6, characterized in that, The welding equipment further includes a clamping assembly, which includes a clamping member disposed on the lower side of the welding pressure head. The clamping member includes a first clamping part, a second clamping part, and a clamping space between the first clamping part and the second clamping part, which are spaced apart. The distance between the first clamping part and the second clamping part is adjustable to adjust the size of the clamping space.

10. The welding equipment according to claim 9, characterized in that, The clamping assembly also includes a push rod movably disposed on the lower side of the clamping member.

11. The welding equipment according to any one of claims 7 to 10, characterized in that, The welding equipment also includes a rotatable turntable, with a plurality of first positioning elements disposed on the outer periphery of the turntable.

12. The welding equipment according to claim 11, characterized in that, The welding equipment further includes a cleaning component disposed on one side of the turntable, and the cleaning component is disposed downstream of the welding pressure head along the rotation direction of the turntable. The cleaning component includes: A brush, positioned on one side of the turntable, is used to sweep and brush the first positioning component; and A collection box, located on the underside of the brush, is used to collect the dust that falls off the brush.

13. The welding equipment according to any one of claims 6 to 10, characterized in that, The welding equipment further includes an air knife disposed between the laser emitter and the welding head, the air knife comprising: The hollow section is provided, penetrating the air knife component along the laser emission direction; and An air blowing section is arranged radially toward the hollow section to form an airflow blocking section in the hollow section.

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