Welding auxiliary tool, welding auxiliary mechanism, welding equipment and battery production system

Abstract

The utility model relates to the technical field of battery processing equipment, and discloses a welding auxiliary tool, a welding auxiliary mechanism, welding equipment and a battery production system.The welding auxiliary tool comprises a seat body of an integrated structure, an energy channel and a dust removal channel are formed in the seat body, and the energy channel penetrates through the first side face and the second side face of the seat body; an energy inlet of the energy channel is formed in the first side surface, and an energy outlet of the energy channel is formed in the second side surface; the dust removal channel is independently arranged on one side of the energy channel and provided with a dust removal inlet and a dust removal outlet which are communicated, the dust removal inlet is communicated with the end, close to the energy outlet, of the energy channel, and the dust removal outlet is located in the first side face and arranged on one side of the energy inlet at intervals. The designable space of the dust removal channel is enlarged, the dust removal channel can be smoothly transited to the dust removal outlet from the dust removal inlet, therefore, the flowing resistance of the dust removal channel can be reduced, the possibility that waste such as metal steam and welding slag is detained in the dust removal channel is reduced, and the welding quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery processing equipment, and in particular to a welding auxiliary tooling, a welding auxiliary mechanism, welding equipment and a battery production system. Background Art

[0002] This section merely provides background information related to the present application and is not necessarily prior art.

[0003] Laser welding is often used in the battery production process. For example, laser welding can be used to achieve electrical connection between battery cells and busbars. During the laser welding process, waste such as metal vapor is generated, which will affect the quality of laser welding. How to reduce the impact of waste such as metal vapor on the quality of laser welding and improve the yield rate of batteries has always been a continuous concern in the battery research and development process. Utility Model Content

[0004] In view of the above problems, the present application provides a welding auxiliary tooling, a welding auxiliary mechanism, a welding equipment and a battery production system, so as to improve the setting space of the dust removal channel, reduce the influence of waste such as metal vapor on the quality of laser welding, and improve the yield rate of the battery.

[0005] The first aspect of the present application proposes a welding auxiliary tooling, comprising a seat body, an energy channel and a dust removal channel of an integral structure, the seat body having a first side surface and a second side surface arranged opposite to each other; the energy channel is formed in the seat body for allowing welding energy to pass through, the energy channel runs through the first side surface and the second side surface, and the energy inlet of the energy channel is arranged on the first side surface, and the energy outlet of the energy channel is arranged on the second side surface; the dust removal channel is used to discharge waste generated by welding, the dust removal channel is formed by the seat body and is independently arranged on one side of the energy channel, the dust removal channel has a connected dust removal inlet and a dust removal outlet, the energy channel is connected to the dust removal inlet at one end close to the energy outlet, and the dust removal outlet is located on the first side surface and is spaced apart from the energy channel.

[0006] In the welding auxiliary tooling of the embodiment of the present application, during the welding process, the workpiece to be welded is located at the energy outlet of the energy channel, and the welding energy (such as laser, etc.) can be injected into the workpiece to be welded through the energy channel, and the metal vapor, welding slag and other wastes generated during the welding process can be discharged along the dust removal channel. The dust removal channel extends from the end of the energy channel close to the outlet to the first side where the energy inlet is located, and is formed with the energy channel through a seat body of an integral structure. Compared with the method in which the dust removal channel and the energy channel are respectively arranged through different components, the welding auxiliary tooling of this embodiment increases the designable space of the dust removal channel, which is conducive to the smooth transition of the dust removal channel from the dust removal inlet to the dust removal outlet, thereby reducing the flow resistance of the dust removal channel, reducing the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel, reducing the influence of metal vapor, welding slag and other wastes on the welding quality, improving the welding quality, and thus improving the yield rate of the battery.

[0007] In addition, the welding auxiliary tooling according to the present application may also have the following additional technical features:

[0008] In some embodiments of the present application, the dust removal channel includes an inlet section, a main body section, and an outlet section, the inlet of the inlet section is the dust removal inlet, the outlet of the inlet section is coaxial with and aligned with the inlet of the main body section, the outlet of the main body section is coaxial with and aligned with the inlet of the outlet section, the main body section extends in an arc from its own inlet to its own outlet, and the outlet of the outlet section is the dust removal outlet. The dust removal channel of this embodiment improves the smoothness of the dust removal channel, can reduce the flow resistance of the dust removal channel, reduce the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel, and reduce the influence of metal vapor, welding slag and other wastes on welding quality.

[0009] In some embodiments of the present application, the first side surface has a first protrusion protruding in a direction away from the second side surface, and the outlet section is formed in the first protrusion. The first protrusion protrudes from the seat body, facilitating the connection between the dust removal channel and the dust removal device.

[0010] In some embodiments of the present application, along the arrangement direction of the first side surface and the second side surface, the outlet of the main body section is flush with the first side surface or is located on the side of the first side surface away from the second side surface, and the inlet of the main body section is flush with the dust removal inlet. In this embodiment, by limiting the position of the inlet and outlet of the main body section, the main body section is extended as much as possible, that is, the arc-shaped portion of the dust removal channel can be extended as much as possible, so that the dust removal channel can be bent with a smaller curvature, and the dust removal channel can transition with a larger arc, thereby reducing the flow resistance of the dust removal channel, reducing the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel, and reducing the influence of metal vapor, welding slag and other wastes on welding quality.

[0011] In some embodiments of the present application, the main body section extends from its own inlet to its own outlet in an arc shape. The main body section is arranged in an arc shape, which has a high degree of smoothness and is easy to process.

[0012] In some embodiments of the present application, the seat body is provided with an inspection port at a position corresponding to the main body section, the inspection port is connected to the main body section and is located on the side of the main body section away from the energy channel, and the welding auxiliary tooling also includes a sealing sheet, which is detachably connected to the seat body and seals the inspection port. By providing the inspection port, welding slag and the like can be cleaned through the inspection port when the dust removal channel is blocked. In the actual application of the welding auxiliary tooling, the main body section can be located on one side of the energy channel in the horizontal direction, and the inspection port is provided on the side of the main body section away from the energy channel. In this way, the inspection port is roughly facing the horizontal direction. When maintenance personnel perform maintenance, they can remove the sealing sheet from the side of the welding auxiliary tooling without entering the bottom of the welding auxiliary tooling, which is convenient for operation.

[0013] In some embodiments of the present application, the sealing sheet is connected to the seat body by snapping. The sealing sheet is connected to the seat body by snapping, which can improve the convenience of assembling and disassembling the sealing sheet and improve the convenience of maintenance.

[0014] In some embodiments of the present application, along the extension direction of the main body section, the sealing sheet has a first end and a second end, the first end and the second end are respectively provided with a first clamping portion, the position of the base body corresponding to the first end and the position of the base body corresponding to the second end are respectively provided with a second clamping portion, and the first clamping portion is clamped with the second clamping portion of the corresponding end. In this embodiment, the first end and the second end of the sealing sheet are both clamped and connected to the base body, which is convenient to operate and has high connection stability.

[0015] In some embodiments of the present application, one of the first clamping portion and the second clamping portion is a clamping slot, and the other is a clamping protrusion, and the clamping protrusion and the clamping slot have an interference fit. The interference fit between the clamping protrusion and the clamping slot can more conveniently realize the clamping of the first clamping portion and the second clamping portion, and is convenient for disassembly.

[0016] In some embodiments of the present application, the sealing sheet is arranged in an arc shape along the extension direction of the main body section. Since the main body section extends in an arc shape, the inspection port is arranged on the main body section, and the inspection port can have the same curvature as the main body section. Arranging the sealing sheet in an arc shape is conducive to the sealing sheet and the inspection port being fitted and sealed.

[0017] In some embodiments of the present application, along a direction perpendicular to the extension direction of the main body section, the sealing sheet has a first side and a second side, the first side and the second side respectively protrude toward the seat body with a first sealing portion, and the first sealing portion is sleeved and sealedly connected to the seat body. Since the first sealing portion is sleeved on the seat body, a sealing surface is formed between the first sealing portion and the side surface of the seat body, and a return seal is formed between the sealing sheet and the seat body, thereby improving the sealing of the inspection port. In addition, since the first sealing portion is located on the outside of the seat body, it will not interfere with the flow of waste in the dust removal channel.

[0018] In some embodiments of the present application, along the extension direction of the main body section, the sealing sheet has a first end and a second end, and the first end and the second end are both provided with sealing clamps on the sides facing the inspection port, and the end surface of the inspection port corresponding to the first end abuts and seals with the sealing clamp at the first end, and the end surface of the inspection port corresponding to the second end abuts and seals with the sealing clamp at the second end. By providing the sealing clamp, the first end and the second end of the sealing sheet respectively form a circular seal with the seat body, thereby improving the sealing performance of the inspection port.

[0019] The second aspect of the present application proposes a welding auxiliary mechanism, including a fixed plate, and the welding auxiliary mechanism also includes a welding auxiliary tooling proposed in the present application or any embodiment of the present application, the base of the welding auxiliary tooling is connected to the fixed plate, and the fixed plate is provided with a first connecting hole and a second connecting hole corresponding to each of the welding auxiliary toolings, the first connecting hole corresponds to and is connected to the energy inlet position, and the second connecting hole corresponds to and is connected to the dust removal outlet position.

[0020] The welding auxiliary mechanism of the present application has the same beneficial effects as the welding auxiliary tooling proposed in the present application or any embodiment of the present application.

[0021] In addition, the welding auxiliary tooling according to the present application may also have the following additional technical features:

[0022] In some embodiments of the present application, the fixed plate is connected to the base body via a buffer assembly. The buffer assembly serves as an elastic member with a buffering effect, and the buffer assembly can provide a buffering effect on the base body. When the workpiece to be welded moves toward the welding auxiliary tooling so that the welding auxiliary tooling presses against the workpiece to be welded, the buffer assembly can reduce the impact force between the base body and the workpiece to be welded. In the case where a plurality of welding auxiliary toolings are connected to the fixed plate, each welding auxiliary tooling can be connected to the fixed plate via a buffer assembly. In this way, when a plurality of welding auxiliary toolings on the fixed plate are used to simultaneously assist in pressing against a plurality of workpieces to be welded, even if there is a deviation in the height of the plurality of workpieces to be welded, the welding auxiliary tooling can also automatically balance the height difference so that the plurality of welding auxiliary toolings are all pressed against the corresponding workpieces to be welded.

[0023] In some embodiments of the present application, the buffer assembly includes a fastener and an elastic member, the fastener connects the fixed plate and the seat body, and at least one of the fixed plate and the seat body is slidably connected to the fastener, so that the seat body can move closer to or away from the fixed plate, the elastic member is located between the seat body and the fixed plate, the elastic member is sleeved on the fastener, and the two ends of the elastic member are respectively in contact with the seat body and the fixed plate. In this embodiment, the connection stability between the base and the fixed plate is improved by the cooperation of the fastener and the elastic member, and the fastener has a guiding effect on the deformation of the elastic member, which can improve the stability of the buffer assembly.

[0024] The third aspect of the present application proposes a welding device, including an energy supply device and a dust removal device, the welding device also includes the welding auxiliary tooling proposed in the present application or any embodiment of the present application, or the welding equipment also includes the welding auxiliary mechanism proposed in the present application or any embodiment of the present application, the energy supply device is used to provide welding energy, the welding energy emitted by the energy supply device can flow to the energy outlet through the energy channel, and the dust removal device is connected to the dust removal outlet.

[0025] The welding equipment of the present application has the same beneficial effects as the welding auxiliary tooling proposed in the present application or any embodiment of the present application.

[0026] A fourth aspect of the present application proposes a battery production system, comprising the welding equipment proposed in the present application or any embodiment of the present application.

[0027] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 A schematic diagram of the structure of a welding auxiliary tooling proposed in some embodiments of the present application;

[0030] Figure 2 A cross-sectional schematic diagram of a welding auxiliary tooling proposed in some embodiments of the present application;

[0031] Figure 3A schematic diagram of a welding auxiliary tooling from one perspective in some embodiments of the present application;

[0032] Figure 4 This is a schematic diagram of the structure of the sealing sheet of some embodiments of the present application;

[0033] Figure 5 A schematic diagram of a welding auxiliary mechanism according to some embodiments of the present application;

[0034] Figure 6 It is a partial cross-sectional schematic diagram of a fixing plate and a base in some embodiments of the present application;

[0035] Figure 7 This is a simplified schematic diagram of welding equipment according to some embodiments of the present application.

[0036] The reference numerals in the specific implementation manner are as follows:

[0037] 10. Welding auxiliary tooling; 100. Base; 101. First side surface; 102. Second side surface; 110. Main body; 120. Dust removal part; 130. First protruding part; 140. Second protruding part; 150. Third protruding part; 160. Second clamping part; 161. Clamping protrusion;

[0038] 200, energy channel; 201, energy entrance; 202, energy exit; 203, third axis;

[0039] 300, dust removal channel; 301, dust removal entrance; 302, dust removal exit; 310, entrance section; 311, first axis; 320, main section; 321, inspection port; 330, exit section; 331, second axis;

[0040] 400, sealing sheet; 401, first end; 402, second end; 403, first side; 404, second side; 410, first sealing portion; 420, first clamping portion; 421, lug; 422, clamping groove; 430, sealing clamping platform; 431, first sealing section; 432, second sealing section;

[0041] 500, fixing plate; 501, first connecting hole; 502, second connecting hole; 510, buffer assembly; 511, elastic member; 512, fastener; 513, pressing member; 514, guide hole;

[0042] 600. Energy supply device; 610. Welding energy;

[0043] 700. Dust removal device; 710. Pipeline. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0049] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0050] In the description of the embodiments of the present application, the technical 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral 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, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] Batteries can store electrical energy and supply power to electrical devices. With the development of new energy, the use of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields.

[0053] During the preparation of the battery, the connection between the battery cell and the busbar can be made by laser welding. During welding, a copper nozzle is used to press the electrode terminal and the busbar of the battery cell, and the laser is shot from the laser channel in the copper nozzle to the busbar and the electrode terminal to weld the busbar and the electrode. During the laser welding process, a large amount of metal vapor will be generated. The retained metal vapor will block the laser energy from reaching the welding surface of the busbar and the electrode terminal, resulting in a cold weld, so the metal vapor needs to be sucked away in time. In some technologies, the laser channel of the copper nozzle is roughly vertically arranged, and the copper nozzle is provided with a dust extraction port at a certain height, which is connected to the side of the laser channel, and the dust extraction port of the copper nozzle is connected to the dust extraction pipe. The dust extraction pipes of different copper nozzles converge together and finally enter the dust collector. Since the dust extraction port is located on the side of the laser channel, the dust collection pipe usually needs to guide the waste discharged from the dust extraction port to one side of the end of the copper nozzle and then enter the dust collector. In this way, the dust extraction pipe needs to be bent approximately ninety degrees. However, due to the spacing between the electrode terminals of the battery cells, the design space of the copper nozzle and the dust extraction pipe is limited. The corners of the dust extraction pipe are usually sharp, resulting in poor discharge smoothness of metal vapor in the dust extraction pipe. In addition, welding slag generated during the welding process is easy to accumulate at the corners of the dust extraction pipe and block the dust extraction pipe, resulting in a decrease in the dust extraction wind speed. The steam retention amount in the subsequent welding process will increase and weaken the laser energy reaching the weld, which can easily cause subsequent batches of cold solder joints between battery cells and busbars. The cold solder joints are difficult to distinguish in appearance, resulting in a decrease in battery quality and a decrease in battery yield.

[0054] In view of the problem that the design space of the copper nozzle and the dust extraction pipe is limited, resulting in poor discharge smoothness of metal vapor in the dust extraction pipe, and welding slag generated during the welding process is easily accumulated at the corners of the dust extraction pipe and clogs the dust extraction pipe, the present application proposes a welding auxiliary tooling, including a base body with an integral structure, on which a relatively independent energy channel and a dust removal channel are arranged, the base body has a first side surface and a second side surface arranged opposite to each other, the energy channel passes through the first side surface and the second side surface, and the energy inlet of the energy channel is arranged on the first side surface, and the energy outlet of the energy channel is arranged on the second side surface, the dust removal channel has a connected dust removal inlet and a dust removal outlet, the energy channel is connected to the dust removal inlet at one end near the energy outlet, the dust removal outlet is located on the first side surface and is spaced apart from the energy inlet.

[0055] Among them, the energy channel is used for the welding energy (such as laser) to pass through, and the dust removal channel is used to discharge the metal vapor, welding slag and other wastes generated by welding, and the dust removal outlet of the dust removal channel can be connected to the dust removal device. In the welding auxiliary tooling of the present application, during the welding process, the busbar and the electrode terminal are pressed by the seat body and are located at the energy outlet of the energy channel. The welding energy (such as laser, etc.) can be injected into the busbar and the electrode terminal through the energy channel to weld the busbar and the electrode terminal. The metal vapor, welding slag and other wastes generated during the welding process can be discharged along the dust removal channel under the action of the dust removal device.

[0056] The dust removal channel of the welding auxiliary tooling of the present application extends from one end of the energy channel close to the outlet to the first side where the energy inlet is located, and is formed with the energy channel through a seat body of an integral structure. Compared with the method in which the dust removal channel is set as an independent pipeline, the welding auxiliary tooling of the present application is not only convenient for processing, but also increases the designable space of the dust removal channel. The increase in the designable space of the dust removal channel is conducive to the reasonable design of the extension of the corner of the dust removal channel, so that the dust removal channel can smoothly transition from the dust removal inlet to the dust removal outlet, thereby reducing the flow resistance of the dust removal channel, reducing the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel, reducing the influence of metal vapor, welding slag and other wastes on welding quality, improving welding quality, and then improving the yield rate and battery quality of the battery.

[0057] The welding auxiliary tooling proposed in the present application or in the embodiments of the present application can be applied to the process of welding the electrode terminal and the busbar of the battery, and can also be applied to other welding processes in the battery preparation process, for example, it can be applied to the welding process of the busbar and the wiring harness plate. Naturally, it can also be used in the welding process of non-battery components. The welding auxiliary tooling proposed in the present application or in the embodiments of the present application can be used alone, or multiple welding auxiliary tooling can be integrated on a fixed plate to form a welding auxiliary mechanism for use. For example, the welding auxiliary mechanism is applied to the welding process of the electrode terminal and the busbar, and multiple welding auxiliary tooling can be pressed against multiple electrode terminals and corresponding busbars one by one. The welding auxiliary tooling can be used as an auxiliary tool for laser welding, and can also be used as an auxiliary tool for other welding energies, such as plasma welding.

[0058] For ease of understanding and description, the embodiments of the present application are mainly described by taking the process of applying welding auxiliary tooling to laser welding of a busbar and an electrode terminal as an example.

[0059] The battery includes one or more battery cells. The battery cell refers to the smallest unit that makes up the battery. Each battery cell can be a secondary battery or a primary battery, and can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery. The battery cell can be cylindrical, flat, rectangular or other shapes. The battery cell includes an end cap, a shell, a battery cell assembly and an electrode terminal. The shell has an opening. The end cap is sealed and covered at the opening of the shell. The shell cooperates with the end cap to form an internal environment of the battery cell, wherein the formed internal environment can be used to accommodate the battery cell assembly, electrolyte and other components. The electrode terminal is used to electrically connect to the battery cell assembly for outputting or inputting the electrical energy of the battery cell. The electrode terminal can be set on the end cap. The electrode terminal of each battery cell is divided into a positive terminal and a negative terminal. The positive terminal and the negative terminal can be connected to the busbar respectively. The busbar can be connected to the wiring harness board. In the case of multiple battery cells, the multiple battery cells can be connected to the positive terminal and the negative terminal through the busbar, so that multiple battery cells are connected in series or in parallel or in mixed connection. Mixed connection means that multiple battery cells are both connected in series and in parallel.

[0060] Reference Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of a welding auxiliary tool 10 proposed in some embodiments of the present application. Figure 2 1 is a cross-sectional schematic diagram of a welding auxiliary tool 10 proposed in some embodiments of the present application. The embodiment of the present application proposes a welding auxiliary tool 10, including a base body 100, an energy channel 200 and a dust removal channel 300 of an integrated structure. The base body 100 has a first side surface 101 and a second side surface 102 arranged opposite to each other. The energy channel 200 is formed in the base body 100 for allowing welding energy 610 to pass through. The energy channel 200 passes through the first side surface 101 and the second side surface 102, and the energy inlet 201 of the energy channel 200 is arranged at The first side surface 101, the energy outlet 202 of the energy channel 200 is arranged on the second side surface 102; the dust removal channel 300 is used to discharge the waste generated by welding, the dust removal channel 300 is formed by the base body 100, and is relatively independently arranged with the energy channel 200, the dust removal channel 300 has a dust removal inlet 301 and a dust removal outlet 302 that are connected, the energy channel 200 is connected to the dust removal inlet 301 at one end close to the energy outlet 202, the dust removal outlet 302 is located on the first side surface 101, and is spaced apart from the energy inlet 201.

[0061] The base body 100 of the integral structure is an integral and inseparable component, which can be roughly a block structure, and the energy channel 200 and the dust removal channel 300 are arranged on the base body 100 of the integral structure, that is, the energy channel 200 and the dust removal channel 300 are formed on the base body 100, and specifically, the base body 100 having the energy channel 200 and the dust removal channel 300 can be formed by an integral molding method such as pouring or casting. The material of the base body 100 can be a metal material, specifically, the base body 100 can be a copper material.

[0062] The first side surface 101 and the second side surface 102 of the base body 100 can be arranged roughly in parallel, and the energy channel 200 can extend along the arrangement direction of the first side surface 101 and the second side surface 102. The axis of the energy channel 200 (i.e., the third axis 203) can be a straight line and perpendicular to the first side surface 101, so that the energy inlet 201 and the energy outlet 202 of the energy channel 200 are arranged opposite to each other, so that the welding energy 610 is emitted from the energy inlet 201 through the energy channel 200 along a straight line to the energy outlet 202. The side where the energy outlet 202 of the welding auxiliary tooling 10 is located, that is, the side where the second side surface 102 is located, contacts with the workpiece to be welded and presses against the workpiece to be welded. The welding energy 610 is emitted through the energy outlet 202 and acts on the workpiece to be welded, so that the workpiece to be welded is welded. The energy channel 200 is a channel with a circular cross-section, and can also be a channel of a rectangle or other shapes.

[0063] In some embodiments, Figure 2 As shown, the energy channel 200 includes a cylindrical section and a conical section arranged in sequence along the axis (i.e., the third axis 203) of the energy channel 200, wherein the cylindrical section is arranged on the first side surface 101, and the end away from the cylindrical section forms an energy inlet 201, the cylindrical section is aligned and connected with the conical section and communicates, and the end of the conical section away from the cylindrical section forms an energy outlet 202. The conical section gradually shrinks in the direction away from the cylindrical section, that is, the small end of the conical section is the energy outlet 202, and the large end of the conical section is connected to the cylindrical section and has the same diameter. This form of energy channel 200 can reduce the possibility of the welding energy 610 being blocked, so that the welding energy 610 such as laser can smoothly reach the workpiece to be welded, so as to weld the workpiece to be welded.

[0064] The base body 100 is integrally formed with a dust removal channel 300. The end of the energy channel 200 close to the energy outlet 202 is also the end of the energy channel 200 close to the second side surface 102. Corresponding to this position, an opening is formed on a side wall of the base body 100 surrounding the energy channel 200. The opening forms a dust removal inlet 301 of the dust removal channel 300. The dust removal channel 300 is located on one side of the energy channel 200. The dust removal channel 300 and the energy channel 200 are relatively independently arranged. The dust removal channel 300 passes through the first side surface 101 and the side wall of the energy channel 200 formed by the base body 100.

[0065] In the welding auxiliary tooling 10 of this embodiment, during the welding process, the workpiece to be welded is located at the energy outlet 202 of the energy channel 200, and the welding energy 610 (such as laser, etc.) can be injected into the workpiece to be welded through the energy channel 200. Waste materials such as metal vapor and welding slag generated during the welding process can be discharged along the dust removal channel 300. The dust removal channel 300 extends from one end of the energy channel 200 close to the outlet to the first side surface 101 where the energy inlet 201 is located, and is formed with the energy channel 200 through a base body 100 of an integral structure. Compared with the dust removal channel 300 and the energy channel 200 being respectively arranged through different components, the welding auxiliary tooling 10 of this embodiment increases the designable space of the dust removal channel 300, which is beneficial for the smooth transition of the dust removal channel 300 from the dust removal inlet 301 to the dust removal outlet 302, thereby reducing the flow resistance of the dust removal channel 300, reducing the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel 300, reducing the influence of metal vapor, welding slag and other wastes on the welding quality, improving the welding quality, and thereby improving the yield rate of the battery.

[0066] According to some embodiments of the present application, optionally, the dust removal channel 300 includes an inlet section 310, a main body section 320 and an outlet section 330, the inlet of the inlet section 310 is a dust removal inlet 301, the outlet of the inlet section 310 is coaxial and aligned with the inlet of the main body section 320, the outlet of the main body section 320 is coaxial and aligned with the inlet of the outlet section 330, the main body section 320 extends in an arc shape from its own inlet to its own outlet, and the outlet of the outlet section 330 is a dust removal outlet 302.

[0067] Optionally, the dust removal passage 300 may be arranged with equal diameters along the direction from the dust removal inlet 301 to the dust removal outlet 302 .

[0068] Among them, Figure 2As shown, the inlet section 310 can extend along the first axis 311, the axis of the energy channel 200 (i.e., the third axis 203) is approximately perpendicular to the first axis 311, the outlet section 330 extends along the second axis 331, the first axis 311 and the second axis 331 are approximately perpendicular, the tangent of the inlet of the main section 320 is parallel to the axis of the inlet section 310, and the tangent of the outlet of the main section 320 is parallel to the axis of the outlet section 330, so that the inlet section 310 and the main section 320 transition tangentially, the main section 320 and the outlet section 330 transition tangentially, the inlet section 310 and the main section 320 transition smoothly, and the main section 320 and the outlet section 330 also transition smoothly.

[0069] The dust removal channel 300 of this embodiment improves the smoothness of the dust removal channel 300, can reduce the flow resistance of the dust removal channel 300, reduce the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel 300, and reduce the impact of metal vapor, welding slag and other wastes on welding quality.

[0070] According to some embodiments of the present application, optionally, a first protrusion 130 protrudes from the first side surface 101 in a direction away from the second side surface 102 , and the outlet section 330 is formed in the first protrusion 130 .

[0071] The first protrusion 130 is a part of the base body 100. The first protrusion 130 protrudes from the base body 100, which facilitates the connection between the dust removal channel 300 and the dust removal device 700.

[0072] Optionally, the first side surface 101 of the base 100 is further provided with a second protrusion 140, and the energy inlet 201 of the energy channel 200 is formed at the second protrusion 140. Optionally, the second side surface 102 of the base 100 may be provided with a third protrusion 150, and the energy outlet 202 of the energy channel 200 is formed at the third protrusion 150.

[0073] According to some embodiments of the present application, optionally, along the arrangement direction of the first side surface 101 and the second side surface 102, the outlet of the main body section 320 is flush with the first side surface 101 or is located on the side of the first side surface 101 away from the second side surface 102, and the inlet of the main body section 320 is flush with the dust removal inlet 301.

[0074] The outlet of the main body section 320 is also the end where the main body section 320 is connected to the outlet section 330 , and the inlet of the main body section 320 is also the end where the main body section 320 is connected to the inlet section 310 .

[0075] In this embodiment, by limiting the position of the inlet and outlet of the main section 320, the main section 320 can be extended as much as possible, that is, the arc-shaped portion of the dust removal channel 300 can be extended as much as possible, so that the dust removal channel 300 can bend with a smaller curvature, and the dust removal channel 300 can transition with a larger arc, thereby reducing the flow resistance of the dust removal channel 300, reducing the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel 300, and reducing the influence of metal vapor, welding slag and other wastes on welding quality.

[0076] According to some embodiments of the present application, optionally, the main body section 320 extends in an arc shape from its own inlet to its own outlet.

[0077] Wherein, when the axis of the inlet section 310 (ie, the first axis 311 ) and the axis of the outlet section 330 (ie, the second axis 331 ) are arranged substantially perpendicularly, the main section 320 substantially forms an arc angle of 90 degrees.

[0078] The main body section 320 of the dust removal passage 300 of this embodiment is arranged in an arc shape, has a high smoothness, and is easy to process.

[0079] When the welding auxiliary tooling of this embodiment is used to assist the welding of the electrode terminal and the busbar, multiple welding auxiliary toolings 10 can be used side by side, and the multiple electrode terminals and the busbar are pressed at the same time, so as to weld the multiple electrode terminals and the corresponding busbars at the same time. The setting space of the welding auxiliary tooling 10 is limited by the spacing between two adjacent electrode terminals. The welding auxiliary tooling 10 of this embodiment is integrally arranged on the base 100 through the dust removal channel 300, so that the curvature radius of the main section 320 can be close to half of the spacing between the two adjacent electrode terminals, so that the curvature of the main section 320 can be greatly reduced. The smaller the curvature, the larger the curvature radius of the main section 320, the flatter the main section 320, and the smoother the discharge of welding slag, metal vapor, etc. Specifically, when the spacing between the two adjacent electrode terminals is less than or equal to 140 mm, the curvature of the main section 320 can be greater than or equal to 35 and less than or equal to 50; when the spacing between the two adjacent electrode terminals is greater than 140 mm, the curvature of the main section 320 can be greater than 35. Among them, the unit of the above curvature is 1 / m, that is, radians per meter.

[0080] The larger arc transition reduces the flow resistance in the dust removal channel 300, reduces the possibility of metal vapor, welding slag and other wastes being retained in the dust removal channel 300, and reduces the impact of metal vapor, welding slag and other wastes on welding quality.

[0081] According to some embodiments of the present application, optionally, referring to Figure 1 and Figure 2 , and combined with Figure 3 As shown, Figure 3This is a schematic diagram of a welding auxiliary tooling 10 from one perspective of some embodiments of the present application. An inspection port 321 is provided at a position of the base body 100 corresponding to the main section 320. The inspection port 321 is connected to the main section 320 and is located on a side of the main section 320 away from the energy channel 200. The welding auxiliary tooling 10 also includes a sealing sheet 400, which is detachably connected to the base body 100 and seals the inspection port 321.

[0082] The sealing sheet 400 may be connected to the base body 100 by means of fasteners 512 such as screws, or may be snap-fitted to the base body 100 .

[0083] In some embodiments, the seat 100 includes a main body 110 and a dust removal part 120, wherein the dust removal part 120 is located on one side of the main body 110 and is an integral structure with the main body 110. The energy channel 200 is disposed on the main body 110, and along the axis (third axis 203) of the energy channel 200, the opposite sides of the main body 110 and the dust removal part 120 are substantially aligned, and the main body 110 and the dust removal part 120 are located on the third axis 203, wherein the surfaces at the same end jointly form a first side 101, and the surfaces of the main body 110 and the dust removal part 120 located at the other end of the third axis 203 jointly form a second side 102. The inlet section 310 of the dust removal channel 300 is disposed on the main body 110, and the main body section 320 and the outlet section 330 of the dust removal channel 300 are disposed on the dust removal part 120, wherein the arrangement direction X of the main body 110 and the dust removal part 120 may be substantially parallel to the axis direction of the inlet section 310. Along the first direction Y, the thickness of the dust removal part 120 is less than the thickness of the main body 110, and the first direction Y, the arrangement direction X of the main body 110 and the dust removal part 120 (understood with reference to the extension direction of the first axis 311), and the arrangement direction Z of the first side surface 101 and the second surface (understood with reference to the extension direction of the third axis 203) are substantially perpendicular to each other. Along the arrangement direction X of the main body 110 and the dust removal part 120, the side of the dust removal part 120 away from the main body 110 extends in an arc shape matching the main body section 320, and the inspection port 321 can be provided on the side of the dust removal part 120 away from the main body 110, and the sealing sheet 400 is sealed and connected to the dust removal part 120, and extends in an arc shape matching the main body section 320.

[0084] It is understandable that by providing the inspection port 321, when the dust removal channel 300 is blocked, welding slag and the like can be cleaned through the inspection port 321. When the welding auxiliary tooling 10 is actually used, the main body section 320 can be located on one side of the energy channel 200 in the horizontal direction, and the inspection port 321 is arranged on the side of the main body section 320 away from the energy channel 200. In this way, the inspection port 321 is generally oriented in the horizontal direction. When maintenance personnel perform maintenance, they can remove the sealing sheet 400 from the side of the welding auxiliary tooling 10 without entering the bottom of the welding auxiliary tooling 10, which is convenient for operation.

[0085] According to some embodiments of the present application, optionally, Figures 1 to 3 As shown, the sealing sheet 400 is snap-connected to the base body 100 .

[0086] The sealing sheet 400 can be connected to the base body 100 by snapping, or the sealing sheet 400 can be abutted against the inspection opening 321 of the base body 100 by interference fit, so that the sealing sheet 400 is snap-fitted to the base body 100 .

[0087] The sealing sheet 400 is connected to the seat body 100 by snapping, which can improve the convenience of assembling and disassembling the sealing sheet 400 and improve the convenience of maintenance.

[0088] According to some embodiments of the present application, optionally, Figures 1 to 3 As shown, along the extension direction of the main section 320, the sealing sheet 400 has a first end 401 and a second end 402, the first end 401 and the second end 402 are respectively provided with a first clamping portion 420, the position of the seat body 100 corresponding to the first end 401 and the position of the seat body 100 corresponding to the second end 402 are respectively provided with a second clamping portion 160, and the first clamping portion 420 is clamped with the second clamping portion 160 at the corresponding end.

[0089] The extension direction of the main body segment 320 may refer to the extension direction of the axis of the main body segment 320 , and the axis of the main body segment 320 extends in an arc shape consistent with the main body segment 320 .

[0090] The first clamping portion 420 of the first end 401 is clamped with the second clamping portion 160 corresponding to the first end 401, and the second clamping portion 160 of the second end 402 is clamped with the second clamping portion 160 corresponding to the second end 402. In one implementation, the first clamping portion 420 is a clamping protrusion 161, the second clamping portion 160 is a clamping slot 422, and the clamping protrusion 161 is clamped in the clamping slot 422; in another implementation, the first clamping portion 420 is a clamping slot 422, the second clamping portion 160 is a clamping protrusion 161, and the clamping protrusion 161 is clamped in the clamping slot 422; in yet another implementation, both the first clamping portion 420 and the second clamping portion 160 are buckles, and the two buckles are buckled and clamped.

[0091] In a specific implementation, Figures 1 to 3As shown, along the extension direction of the main section 320, the inspection port 321 has a third end and a fourth end, the first end 401 corresponds to the position of the third end, and the second end 402 corresponds to the position of the fourth end, the seat body 100 (i.e., the dust removal part 120) is respectively provided with a clamping protrusion 161 on both sides of the third end, and the seat body 100 (i.e., the dust removal part 120) is also respectively provided with a clamping protrusion 161 on both sides of the fourth end, and the clamping protrusion 161 can be a columnar part, the sealing sheet 400 is respectively provided with a protruding ear 421 on both sides of the first end 401, and the sealing sheet 400 is respectively provided with a protruding ear 421 on both sides of the second end 402, and a clamping groove 422 is provided on the protruding ear 421, the two clamping protrusions 161 at the third end are respectively clamped in the clamping groove 422 of the two protruding ears 421 of the first end 401, and the two clamping protrusions 161 at the fourth end are respectively clamped in the clamping groove 422 of the two protruding ears 421 of the second end 402.

[0092] In this embodiment, the first end 401 and the second end 402 of the sealing sheet 400 are connected to the base body 100 by snapping, which is easy to operate and has high connection stability.

[0093] According to some embodiments of the present application, optionally, one of the first clamping portion 420 and the second clamping portion 160 is a clamping groove 422 , and the other is a clamping protrusion 161 , and the clamping protrusion 161 is interference fit with the clamping groove 422 .

[0094] The locking protrusion 161 and the locking groove 422 are interference-fitted, so that the first locking portion 420 and the second locking portion 160 can be easily connected and disassembled.

[0095] According to some embodiments of the present application, optionally, the sealing sheet 400 is arranged in an arc shape along the extension direction of the main body section 320 .

[0096] Since the main body section 320 extends in an arc shape and the inspection port 321 is arranged on the main body section 320 , the inspection port 321 may have the same curvature as the main body section 320 . Arranging the sealing sheet 400 in an arc shape is beneficial to the sealing between the sealing sheet 400 and the inspection port 321 .

[0097] According to some embodiments of the present application, optionally, referring to Figures 1 to 3 , and combined with Figure 4 As shown, Figure 4 This is a structural schematic diagram of the sealing sheet 400 of some embodiments of the present application. Along the direction perpendicular to the extension direction of the main section 320, the sealing sheet 400 has a first side 403 and a second side 404. The first side 403 and the second side 404 are respectively provided with a first sealing portion 410 facing the seat body 100. The first sealing portion 410 is sleeved and sealed on the seat body 100.

[0098] like Figure 4As shown, the first sealing portion 410 can be an integral structure with the first sealing sheet 400, the first sealing portion 410 on the first side 403 and the second side 404 cooperates with the sealing sheet 400 to form an arc groove structure, the side of the dust removal portion 120 of the seat body 100 facing away from the main body 110 can be arranged in the arc groove, the sealing sheet 400 is opposite to the inspection port 321 and blocks the inspection port 321, the first sealing portion 410 on the first side 403 is located on the outer side of the dust removal portion 120 facing the first side 403, and is tightly sealed with the dust removal portion 120, and the first sealing portion 410 on the second side 404 is located on the outer side of the dust removal portion 120 facing the second side 404, and is tightly sealed and connected with the dust removal portion 120. Since the first sealing part 410 is sleeved on the dust removal part 120, a sealing surface is formed between the first sealing part 410 and the side of the dust removal part 120, and a return seal is formed between the sealing sheet 400 and the dust removal part 120, thereby improving the sealing performance of the inspection port 321. In addition, since the first sealing parts 410 on both sides are located outside the dust removal part 120, they will not interfere with the flow of waste in the dust removal channel 300.

[0099] According to some embodiments of the present application, optionally, Figures 1 to 4 As shown, sealing platforms 430 are provided on the sides of the first end 401 and the second end 402 facing the inspection port 321, and the end surface of the inspection port 321 corresponding to the first end 401 abuts against the sealing platform 430 of the first end 401 for sealing, and the end surface of the inspection port 321 corresponding to the second end 402 abuts against the sealing platform 430 of the second end 402 for sealing.

[0100] Along the extension direction of the sealing sheet 400 (refer to the extension direction of the main section 320), the sealing card platform 430 of the first end 401 is spaced apart from the edge of the first end 401, and the portion of the sealing sheet 400 between the sealing card platform 430 of the first end 401 and the edge of the first end 401 is the first sealing section 431. The first sealing section 431 can be sleeved on the outside of the dust removal section 120 and abut against the dust removal section 120 for sealing, and the sealing card platform 430 of the first end 401 abuts against the end face of the third end of the inspection port 321 for sealing. Along the extension direction of the sealing sheet 400 (refer to the extension direction of the main section 320), the portion of the sealing sheet 400 between the sealing card platform 430 at the second end 402 and the edge of the second end 402 is the second sealing section 432. The second sealing section 432 can be sleeved on the outside of the dust removal part 120 and abut against the dust removal part 120 for sealing. The sealing card platform 430 at the second end 402 abuts against the end face of the fourth end of the inspection port 321 for sealing.

[0101] By providing the sealing clamping platform 430 , the first end 401 and the second end 402 of the sealing sheet 400 respectively form a circular seal with the seat body 100 , thereby improving the sealing performance of the inspection port 321 .

[0102] Reference Figure 5As shown, Figure 5 This is a schematic diagram of a welding auxiliary mechanism of some embodiments of the present application. The present application also provides a welding auxiliary mechanism, including a fixed plate 500 and at least one welding auxiliary tooling 10 proposed in the present application or any embodiment of the present application. The base 100 of the welding auxiliary tooling 10 is connected to the fixed plate 500. The fixed plate 500 is provided with a first connecting hole 501 and a second connecting hole 502 corresponding to each welding auxiliary tooling 10. The first connecting hole 501 corresponds to and is connected with the position of the energy inlet 201. The second connecting hole 502 corresponds to and is connected with the position of the dust removal outlet 302.

[0103] The fixing plate 500 is generally a plate-shaped member, which is used to connect with the dust removal device 700 and to install and fix the welding auxiliary tooling 10. Specifically, the base 100 can be connected to the fixing plate 500 through the main body 110. The fixing plate 500 can be a fiberglass board. When there are multiple welding auxiliary toolings 10, multiple welding auxiliary toolings 10 can be arranged on the same side of the fixing plate 500 and arranged at intervals. The second protrusion 140 of each welding auxiliary tooling 10 can be arranged in the first connecting hole 501 so that the energy channel 200 is connected to the first connecting hole 501, and the first protrusion 130 of each welding auxiliary tooling 10 can be arranged in the second connecting hole 502 so that the dust removal channel 300 is connected to the second connecting hole 502.

[0104] The welding auxiliary mechanism of this embodiment has the effect of the welding auxiliary tooling 10 proposed in this application or any embodiment of this application. Moreover, by setting a fixing plate 500, multiple welding auxiliary tooling 10 can be integrated, which also facilitates the fixed installation of the welding auxiliary tooling 10.

[0105] According to some embodiments of the present application, optionally, Figure 5 As shown, the fixing plate 500 is connected to the seat body 100 via a buffer assembly 510 .

[0106] The buffer assembly 510 can be a spring assembly or a rubber pad or other structures. The elastic member 511 of the buffer assembly 510 can be arranged between the base 100 and the fixed plate 500. The buffer assembly 510 can play a buffering role on the base 100. When the welded part moves toward the welding auxiliary tooling 10 so that the welding auxiliary tooling 10 presses against the welded part, the impact force between the base 100 and the welded part can be reduced. In the case where a plurality of welding auxiliary toolings 10 are connected to the fixed plate 500, each welding auxiliary tooling 10 can be connected to the fixed plate 500 through the buffer assembly 510. In this way, when the plurality of welding auxiliary toolings 10 on the fixed plate 500 are used to simultaneously assist in pressing against the plurality of welded parts, even if there is a deviation in the height of the plurality of welded parts, the welding auxiliary tooling 10 can also automatically balance the height difference so that the plurality of welding auxiliary toolings 10 are pressed against the corresponding welded parts.

[0107] According to some embodiments of the present application, optionally, the buffer assembly 510 includes a fastener 512 and an elastic member 511, the fastener 512 connects the fixed plate 500 and the base body 100, and at least one of the fixed plate 500 and the base body 100 is slidably connected to the fastener 512 so that the base body 100 can move closer to or away from the fixed plate 500, the elastic member 511 is located between the base body 100 and the fixed plate 500, the elastic member 511 is sleeved on the fastener 512, and the two ends of the elastic member 511 are respectively abutted against the base body 100 and the fixed plate 500, and the base body 100 can move closer to or away from the fixed plate 500.

[0108] The elastic member 511 may be a spring. One or more buffer components 510 may be provided. In the case of providing multiple buffer components 510, each buffer component 510 may include a fastener 512 and an elastic member 511, and the multiple buffer components 510 may be arranged at intervals. In some embodiments, as Figure 5 As shown, there are two buffer components 510, which are respectively disposed at both ends of the main body 110 along the arrangement direction X of the main body 110 and the dust removal part 120. By providing a plurality of buffer components 510, the buffering performance of the base 100 and the connection stability of the base 100 and the fixing plate 500 are improved.

[0109] In some implementations, one end of the fastener 512 can be fixedly connected to the fixing plate 500, a guide hole 514 is provided on the seat 100, the fastener 512 can be slidably provided in the guide hole 514, the seat 100 can be slidably connected to the fastener 512 through the guide hole 514, the elastic member 511 (spring) is sleeved on the fastener 512, and the two ends of the spring are respectively in contact with the seat 100 and the fixing plate 500. The fastener 512 and the fixing plate 500 can be detachably connected or non-detachably connected. Specifically, the fastener 512 can be a threaded column, a pin, etc., and the fastener 512 can be welded, threaded, or clamped to the fixing plate 500. The other end of the fastener 512 can be slidably arranged in the guide hole 514, and a limit member can be arranged in the guide hole 514, and the limit member is used to limit the sliding stroke of the fastener 512 so that the fastener 512 does not slide out of the guide hole 514; the fastener 512 can also pass through the guide hole 514 and limit the sliding stroke by the pressing member 513. For example, when the fastener 512 is a threaded column, the fastener 512 passes through the guide hole 514 and is connected with the nut member. The nut member is threadedly connected to the fastener 512 and stops and presses on the side of the base away from the fixed plate 500; for another example, when the fastener 512 is a pin shaft, the pressing member 513 can be a positioning pin, which is connected to the pin shaft and stops and presses on the side of the base away from the fixed plate 500. In the buffer assembly 510 of this implementation, when the welded part contacts the base, the base slides relative to the fastener 512 and moves closer to the fixed plate 500, and the elastic member 511, i.e., the spring, is compressed, and the elastic member 511 applies elastic force to the base, so that the base presses against the welded part.

[0110] In other implementations, such as Figure 6 As shown, Figure 6The following is a partial cross-sectional schematic diagram of the fixing plate 500 and the base in some embodiments of the present application. One end of the fastener 512 can be fixedly connected to the base. The fixing plate 500 is provided with a guide hole 514. The fastener 512 can be slidably arranged in the guide hole 514. The fastener 512 can be slidably connected to the fixing plate 500 through the guide hole 514. The elastic member 511 (spring) is sleeved on the fastener 512. The two ends of the spring are respectively in contact with the base 100 and the fixing plate 500. The fastener 512 can be detachably connected to the base or can be non-detachably connected. Specifically, the fastener 512 can be a threaded column, a pin, etc. Taking the fastener 512 as a threaded column as an example, the threaded column can be welded, screwed or clamped to the base. The other end of the fastener 512 can be slidably arranged in the guide hole 514 of the fixed plate 500, and a limit member can be arranged in the guide hole 514, and the limit member is used to limit the sliding stroke of the fastener 512 so that the fastener 512 does not slide out of the guide hole 514; the fastener 512 can also pass through the guide hole 514 and limit the sliding stroke by the pressing member 513. For example, when the fastener 512 is a threaded column, the fastener 512 passes through the guide hole 514 and is connected with the nut member. The nut member is threadedly connected to the fastener 512 and stops and presses on the side of the base away from the fixed plate 500; for another example, when the fastener 512 is a pin shaft, the pressing member 513 can be a positioning pin, which is connected to the pin shaft and stops and presses on the side of the base away from the fixed plate 500. In the buffer assembly 510 of this implementation, when the welded part contacts the base, the fastener 512 slides together with the base relative to the fixed plate 500, so that the base moves closer to the fixed plate 500, and the elastic member 511, i.e., the spring, is compressed, and the elastic member 511 applies elastic force to the base, so that the base presses against the welded part.

[0111] In another implementation, the fixing plate 500 and the base may both be provided with guide holes 514, the fastener 512 may pass through the guide holes 514 of the fixing plate 500 and the base, and the two ends are respectively connected with pressing members 513, one pressing member 513 is pressed against the side of the fixing plate 500 away from the base, and the other pressing member 513 is pressed against the side of the base away from the fixing plate 500, and the spring is sleeved on the fastener 512 and between the fixing plate 500 and the base. The fastener 512 may be a threaded column, and the two pressing members 513 may be nuts, which are threadedly connected to the threaded column.

[0112] In this embodiment, the fastener 512 cooperates with the elastic member 511 to improve the connection stability between the base and the fixing plate 500 , and the fastener 512 has a guiding effect on the deformation of the elastic member 511 , which can improve the stability of the buffer assembly 510 .

[0113] like Figure 7 As shown, Figure 7This is a schematic diagram of welding equipment in some embodiments of the present application. The embodiments of the present application also provide a welding equipment, including an energy supply device 600, a dust removal device 700, and the welding equipment also includes the welding auxiliary tooling 10 proposed in the present application or any embodiment of the present application, or the welding equipment also includes the welding auxiliary mechanism proposed in the present application or any embodiment of the present application. The energy supply device 600 is used to provide welding energy 610, and the welding energy 610 emitted by the energy supply device 600 can flow to the energy outlet 202 through the energy channel 200, and the dust removal device 700 is connected to the dust removal outlet 302.

[0114] The energy supply device 600 may be a laser welding device. The dust removal device 700 may be a dust removal machine with a suction fan, and the duct 710 of the dust removal device 700 is connected to the dust removal outlet 302. The energy outlet 202 of the energy supply device 600 and the duct 710 connecting the dust removal device 700 and the dust removal outlet 302 may both be located on the upper side of the welding auxiliary tooling 10 (i.e., the side where the first side 101 is located), and the lower side of the welding auxiliary tooling 10 (i.e., the side where the second side 102 is located) is used to press against the workpiece to be welded.

[0115] When the welding device of this embodiment is in use, the workpiece to be welded can be moved upward so that the welding auxiliary tooling 10 is pressed against the workpiece to be welded. Then, the energy providing device 600 emits welding energy 610, and the welding energy 610 reaches the workpiece to be welded through the energy channel 200, and promotes the welding of the workpiece to be welded. During the welding process, the dust removal device 700 forms a negative pressure, and sucks the welding slag or metal vapor generated by the welding through the dust removal channel 300, so that the waste such as the welding slag or metal vapor enters the dust removal channel 300 from the energy outlet 202 and can enter the dust removal device 700 through the dust removal channel 300. The specific flow path of the waste such as the welding slag or metal vapor can be referred to. Figure 2 As shown by the dotted arrow.

[0116] The welding equipment of this embodiment has the beneficial effects of the welding auxiliary tooling 10 proposed in this application or any embodiment of this application.

[0117] An embodiment of the present application also provides a battery production system, including the welding equipment proposed in the present application or any embodiment of the present application.

[0118] The welding device can be used in the welding process between the electrode terminal and the busbar, the welding process between the busbar and the wiring harness plate, and the welding process between the electrode terminal and the tab of the battery cell.

[0119] The battery production system also includes other battery-related production devices, such as an assembly device for electrode assemblies and shells, an assembly device for shells and end covers, a processing device for battery cells, and the like.

[0120] The battery production system of this embodiment has the beneficial effects of the welding auxiliary tooling 10 proposed in this application or any embodiment of this application.

[0121] like Figures 1 to 5 As shown, the embodiment of the present application provides a welding auxiliary tool 10, including a base body 100 and a sealing sheet 400 of an integrated structure, the base body 100 has a first side surface 101 and a second side surface 102 arranged opposite to each other, an energy channel 200 and a dust removal channel 300 are arranged on the base body 100, the energy channel 200 passes through the first side surface 101 and the second side surface 102, and the energy inlet 201 of the energy channel 200 is arranged on the first side surface 101, and the energy outlet 202 of the energy channel 200 is arranged on the second side surface 102, the dust removal channel 300 includes an inlet section 310, a main section 320 and an outlet section 330, and the dust removal The channel 300 includes an inlet section 310, a main body section 320 and an outlet section 330. The inlet of the inlet section 310 is a dust removal inlet 301. The outlet of the inlet section 310 is coaxial with and aligned with the inlet of the main body section 320. The outlet of the main body section 320 is coaxial with and aligned with the inlet of the outlet section 330. The main body section 320 extends in an arc shape from its own inlet to its own outlet. The outlet of the outlet section 330 is a dust removal outlet 302. The dust removal inlet 301 is connected to one end of the energy channel 200 close to the energy outlet 202. The dust removal outlet 302 is located on the first side 101 and is spaced apart on one side of the energy inlet 201.

[0122] For the convenience of description, the seat body 100 is divided into two parts, namely, the main body 110 and the dust removal part 120. The main body 110 and the dust removal part 120 are an integral structure. The opposite sides of the main body 110 and the dust removal part 120 are substantially aligned. Along the axis (third axis 203) of the energy channel 200, the main body 110 and the dust removal part 120 are located at the third axis 203, wherein the surfaces at the same end jointly form the first side 101, and the surfaces of the main body 110 and the dust removal part 120 located at the other end of the third axis 203 jointly form the second side 102. The energy channel 200 is disposed on the main body 110, the inlet section 310 of the dust removal channel 300 is disposed on the main body 110, and the main body section 320 and the outlet section 330 of the dust removal channel 300 are disposed on the dust removal part 120, wherein the arrangement direction X of the main body 110 and the dust removal part 120 may be substantially parallel to the axis (refer to the first axis 311) of the inlet section 310. Along the first direction Y, the thickness of the dust removal part 120 is less than the thickness of the main body 110, and the first direction Y, the arrangement direction X of the main body 110 and the dust removal part 120 (understood with reference to the extension direction of the first axis 311), and the arrangement direction Z of the first side surface 101 and the second surface (understood with reference to the extension direction of the third axis 203) are approximately perpendicular to each other. The dust removal part 120 has a first protruding portion 130 protruding from the first side surface 101, and the outlet section 330 is formed in the first protruding portion 130. Along the arrangement direction Z of the first side surface 101 and the second side surface 102, the outlet of the main body section 320 is approximately flush with the first side surface 101, and the inlet of the main body section 320 is flush with the dust removal inlet 301. The main body 110 is arranged in an arc shape, and the main body 110 is close to an arc shape bending from the first surface to the second surface, and its curvature is small and the arc is large.

[0123] Along the arrangement direction X of the main body 110 and the dust removal part 120, the side of the dust removal part 120 away from the main body 110 extends in an arc shape matching the main body section 320, and the position of the seat body 100 corresponding to the main body section 320 is provided with an inspection port 321, the inspection port 321 is connected to the main body section 320, and is located on the side of the main body section 320 away from the energy channel 200, along the extension direction of the main body section 320, the sealing sheet 400 has a first end 401 and a second end 402, the inspection port 321 has a third end and a fourth end, the first end 401 corresponds to the position of the third end, the second end 402 corresponds to the position of the fourth end, and the seat body 100 has protruding protrusions 161 on both sides of the third end, and the base body 100 also has protrusions 161 on both sides of the fourth end. The protrusions 161 can be columnar parts. The sealing sheet 400 has protruding ears 421 on both sides of the first end 401, and the sealing sheet 400 has protruding ears 421 on both sides of the second end 402. The ears 421 are provided with grooves 422. The two protrusions 161 at the third end are respectively clamped in the grooves 422 of the two protrusions 421 of the first end 401, and the two protrusions 161 at the fourth end are respectively clamped in the grooves 422 of the two protrusions 421 of the second end 402. Along the direction perpendicular to the extension direction of the main section 320, the sealing sheet 400 has a first side 403 and a second side 404. The first side 403 and the second side 404 of the sealing sheet 400 both protrude toward the base 100 with a first sealing portion 410, which is sleeved and sealedly connected to the base 100. Along the extension direction of the main section 320, the sealing sheet 400 has a first end 401 and a second end 402. The first end 401 and the second end 402 are both provided with a sealing platform 430 on the sides facing the inspection port 321. The position of the inspection port 321 corresponding to the first end 401 abuts against the sealing platform 430 of the first end 401 for sealing, and the position of the inspection port 321 corresponding to the second end 402 abuts against the sealing platform 430 of the second end 402 for sealing.

[0124] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A welding auxiliary tool, characterized in that: include: A seat body of an integral structure, the seat body having a first side surface and a second side surface disposed opposite to each other; an energy channel formed in the seat body for passing welding energy, the energy channel passing through the first side surface and the second side surface, and an energy inlet of the energy channel is arranged on the first side surface, and an energy outlet of the energy channel is arranged on the second side surface; A dust removal channel is used to discharge waste generated by welding. The dust removal channel is formed by the base body and is independently arranged on one side of the energy channel. The dust removal channel has a connected dust removal inlet and a dust removal outlet. One end of the energy channel close to the energy outlet is connected to the dust removal inlet. The dust removal outlet is located on the first side and is spaced apart from the energy inlet.

2. The welding auxiliary tooling according to claim 1, characterized in that: The dust removal passage comprises an inlet section, a main body section and an outlet section, the inlet of the inlet section is the dust removal inlet, the outlet of the inlet section is coaxial with and aligned with the inlet of the main body section, the outlet of the main body section is coaxial with and aligned with the inlet of the outlet section, the main body section extends in an arc shape from its own inlet to its own outlet, and the outlet of the outlet section is the dust removal outlet.

3. The welding auxiliary tooling according to claim 2, characterized in that: A first protrusion protrudes from the first side surface in a direction away from the second side surface, and the outlet section is formed in the first protrusion.

4. The welding auxiliary tooling according to claim 3, characterized in that: Along the arrangement direction of the first side surface and the second side surface, the outlet of the main body section is flush with the first side surface or located on the side of the first side surface away from the second side surface, and the inlet of the main body section is flush with the dust removal inlet.

5. The welding auxiliary tool according to any one of claims 2 to 4, characterized in that: The main body section extends in an arc shape from its own inlet to its own outlet.

6. The welding auxiliary tooling according to any one of claims 2 to 4, characterized in that: The seat body is provided with an inspection port at a position corresponding to the main body section, the inspection port is connected to the main body section and is located on a side of the main body section away from the energy channel, and the welding auxiliary tooling also includes a sealing sheet, which is detachably connected to the seat body and seals the inspection port.

7. The welding auxiliary tooling according to claim 6, characterized in that: The sealing sheet is connected with the seat body by snapping.

8. The welding auxiliary tooling according to claim 7, characterized in that: Along the extension direction of the main body section, the sealing sheet has a first end and a second end, the first end and the second end are respectively provided with a first clamping portion, the position of the seat body corresponding to the first end and the position of the seat body corresponding to the second end are respectively provided with a second clamping portion, and the first clamping portion is clamped with the second clamping portion of the corresponding end.

9. The welding auxiliary tooling according to claim 8, characterized in that: One of the first clamping portion and the second clamping portion is a clamping groove, and the other is a clamping protrusion, and the clamping protrusion is interference-fitted with the clamping groove.

10. The welding auxiliary tooling according to claim 6, characterized in that: Along the extending direction of the main body section, the sealing sheet is arranged in an arc shape.

11. The welding auxiliary tooling according to claim 10, characterized in that: Along a direction perpendicular to the extension direction of the main body section, the sealing sheet has a first side and a second side, the first side and the second side respectively have a first sealing portion protruding toward the seat body, and the first sealing portion is sleeved and sealed on the seat body.

12. The welding auxiliary tooling according to claim 10, characterized in that: Along the extension direction of the main body section, the sealing sheet has a first end and a second end, and the first end and the second end are both provided with sealing cards on the sides facing the inspection port, and the end surface of the inspection port corresponding to the first end is abutted and sealed with the sealing card of the first end, and the end surface of the inspection port corresponding to the second end is abutted and sealed with the sealing card of the second end.

13. A welding auxiliary mechanism, characterized in that: include: Fixed plate; At least one welding auxiliary tooling as described in any one of claims 1 to 12, the base of the welding auxiliary tooling is connected to the fixed plate, and the fixed plate is provided with a first connecting hole and a second connecting hole corresponding to each of the welding auxiliary toolings, the first connecting hole corresponds to and is connected with the energy inlet position, and the second connecting hole corresponds to and is connected with the dust removal outlet position.

14. The welding auxiliary mechanism according to claim 13, characterized in that: The fixing plate and the seat body are connected via a buffer assembly.

15. The welding auxiliary mechanism according to claim 14, characterized in that: The buffer assembly includes a fastener and an elastic member, the fastener connects the fixed plate and the seat body, and at least one of the fixed plate and the seat body is slidably connected to the fastener so that the seat body can move closer to or away from the fixed plate, the elastic member is located between the seat body and the fixed plate, the elastic member is sleeved on the fastener, and two ends of the elastic member are respectively abutted against the seat body and the fixed plate.

16. A welding device, characterized in that: The welding equipment comprises an energy supply device and a dust removal device, and the welding equipment further comprises the welding auxiliary tooling as described in any one of claims 1 to 12 or the welding auxiliary mechanism as described in any one of claims 13 to 15. The energy supply device is used to provide welding energy, and the welding energy emitted by the energy supply device can flow to the energy outlet through the energy channel, and the dust removal device is connected to the dust removal outlet.

17. A battery production system, characterized in that: Comprising the welding equipment as claimed in claim 16.

Images