CN220971068U - Welding device - Google Patents

Abstract

The application relates to a welding device, which comprises a welding head and a welding seat assembly. The welding seat assembly and the welding head are oppositely arranged along a first direction; the welding seat assembly comprises a mounting bracket and a welding seat main body arranged on the mounting bracket; the mounting bracket is provided with a first sub-channel, the welding seat main body is provided with a second sub-channel, and the first sub-channel and the second sub-channel are communicated with each other to form a dust collection channel; the welding seat main body is also provided with a dust collection port which faces one side of the welding head and is communicated with the dust collection channel; wherein the welding head is movable in a first direction toward and away from the weld seat assembly. When the lug of the battery and the pole piece base material are welded through the welding device, dust impurities generated in the welding process can enter the dust collection channel through the dust collection port to be removed. Because this welding set does not need to set up the dust excluding hood that processing cost is higher any more, therefore whole welding set's cost is lower, and the welding processing cost of utmost point ear and pole piece substrate is also lower.

Description

Welding device

Technical Field

The application relates to the technical field of ultrasonic welding, in particular to a welding device.

Background

In the welding process of the tab and the pole piece base material of the lithium ion battery, a dust hood is usually arranged near a welding head to carry out dust removal operation. However, because the dust hood is complex in structure and high in processing cost, the manufacturing cost of the whole welding device is high, and the welding processing cost of the lug and the pole piece base material is also high.

Disclosure of utility model

In view of the above problems, the present application provides a welding device, which can reduce the welding processing cost of the tab during the welding process with the pole piece substrate.

The application provides a welding device, which comprises a welding head and a welding seat assembly. The welding seat assembly and the welding head are oppositely arranged along a first direction; the welding seat assembly comprises a mounting bracket and a welding seat main body arranged on the mounting bracket; the mounting bracket is provided with a first sub-channel, the welding seat main body is provided with a second sub-channel, and the first sub-channel and the second sub-channel are communicated with each other to form a dust collection channel; the welding seat main body is also provided with a dust collection port which faces one side of the welding head and is communicated with the dust collection channel; wherein the welding head is movable in a first direction toward and away from the weld seat assembly.

When the welding device provided by the application is used for welding the electrode lug and the electrode plate base material of the battery, the electrode lug and the electrode plate base material are borne on the welding seat assembly, and the welding head is enabled to move close to the welding seat assembly along the first direction, so that the welding head is abutted against the electrode lug and is subjected to ultrasonic welding operation. Dust impurities generated in the ultrasonic welding process enter the dust collection channel through the dust collection port to be removed. Because the welding device provided by the application directly arranges the dust collection channel on the welding seat component to realize the dust collection function in the welding process, a dust collection cover with higher processing cost is not required to be additionally arranged, so that the manufacturing cost of the whole welding device is lower, and the welding processing cost of the tab and the pole piece base material is also lower.

In some of these embodiments, the mounting bracket is further configured with a dust outlet in communication with an end of the first sub-channel remote from the second sub-channel.

The dust collection channel is connected with the second sub-channel through the first sub-channel, so that when impurities are generated in the welding process, the impurities sequentially enter the second sub-channel and the first sub-channel through the dust collection port, and finally are collected through the dust outlet.

In some of these embodiments, the cross-sectional area of the first sub-channel is less than or equal to the cross-sectional area of the second sub-channel.

By setting the cross-sectional area of the first sub-channel to be smaller than or equal to the cross-sectional area of the second sub-channel, when the negative pressure generated at the dust outlet is transmitted into the second sub-channel after passing through the first sub-channel, the cross-sectional area of the negative pressure air flow is not reduced and then increased, so that the possibility of loss of the negative pressure air flow is reduced.

In some of these embodiments, the side of the weld base body facing the welding head is provided with a plurality of spaced apart fixed teeth for insertion into the surface of the material to be welded.

The fixed teeth are inserted into the surface of the material to be welded, so that the welding seat main body and the material to be welded are fixed simply.

In some of these embodiments, the welding device further comprises a tracheal tube connection assembly connected to the mounting bracket; the air pipe connecting component is communicated with the dust outlet.

Through communicating the air pipe connecting assembly with the dust outlet, impurities sucked in the dust collection channel flow into the air pipe connecting assembly through the dust outlet and are collected.

In some of these embodiments, the tracheal tube connection assembly comprises a mounting adapter and a tracheal tube connected to each other; the installation joint is connected with the installation bracket, the installation joint is provided with a first airflow channel, and the air pipe is internally provided with a second airflow channel; the first airflow channel is communicated with the second airflow channel, and one end of the first airflow channel, which is away from the second airflow channel, is communicated with the dust outlet.

When carrying out welding operation through this welding set, the second air current passageway produces the negative pressure under the effect of vacuum cleaner this moment, and this negative pressure is transmitted to dust collection mouth department through second air current passageway, first subchannel and second subchannel in proper order, and then makes the miscellaneous ability that produces in the welding process inhale in the dust collection passageway through dust collection mouth department, finally transmits to the vacuum cleaner intracavity again.

In some of these embodiments, the cross-sectional area of the first airflow channel is less than or equal to the cross-sectional area of the second airflow channel.

By setting the cross-sectional area of the first air flow passage to be smaller than or equal to the cross-sectional area of the second air flow passage, when the negative pressure generated by the vacuum cleaner is transmitted into the first air flow passage after passing through the second air flow passage, the cross-sectional area of the negative pressure air flow is not reduced and then increased, thereby reducing the possibility of loss of the negative pressure air flow.

In some of these embodiments, the welding apparatus further comprises a vacuum cleaner in communication with an end of the second airflow channel facing away from the first airflow channel.

The inside of vacuum cleaner has electronic air exhauster, and the high-speed operation after the circular telegram makes the inside of vacuum cleaner form instant vacuum, and inside atmospheric pressure is less than external atmospheric pressure greatly, under this atmospheric pressure differential effect for produce the negative pressure in the second air current passageway, this negative pressure is transmitted to dust collection mouth department through first air current passageway, first subchannel and second subchannel in proper order, thereby can inhale the operation to the impurity of dust collection mouth department, finally makes impurity inhale to the vacuum cleaner.

In some of these embodiments, the welding apparatus further comprises a control valve mounted between the second air flow passage and the vacuum cleaner, the control valve being configured to control the connection or disconnection of the second air flow passage to or from the vacuum cleaner.

The second airflow channel is controlled to be communicated with or disconnected from the vacuum cleaner through the control valve, so that negative pressure control at the dust collecting port in the whole welding process can be more accurate, and energy is saved.

In some of these embodiments, the welding device includes a welding state and a non-welding state; in a welding state, the control valve is used for communicating the second airflow channel with the vacuum cleaner; in the non-welding state, the control valve is used to disconnect the second air flow passage from the vacuum cleaner.

When the electrode lug and the electrode plate base material are required to be welded, the control valve controls the second airflow channel to be communicated with the vacuum cleaner, so that a negative pressure environment can be formed at the dust collecting port, and impurities generated in the welding process are sucked away. And when the welding of the electrode lug and the electrode plate base material is finished, the control valve controls the second airflow channel to be disconnected with the vacuum cleaner, so that unnecessary energy consumption is reduced, the whole welding process is more energy-saving, and the welding processing cost is lower.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

fig. 1 is a schematic diagram of a welding device and a material to be welded according to an embodiment of the application.

Fig. 2 is a schematic view of a welding seat assembly and an air pipe connecting assembly in the welding device shown in fig. 1.

Fig. 3 is a front view of the weld holder assembly and the tracheal tube connection assembly of the connector of fig. 2.

Fig. 4 is a cross-sectional view at A-A shown in fig. 3.

Fig. 5 is a schematic view of a weld holder body in the welding apparatus shown in fig. 1.

Fig. 6 is a cross-sectional view at B-B shown in fig. 5.

Reference numerals in the specific embodiments are as follows:

100-welding head;

200-welding seat assembly; 210-mounting a bracket; 211-a dust outlet; 220-a weld holder body; 221-fixed teeth; 230-a dust collection channel; 231-first subchannel; 232-a second sub-channel; 240-dust collection port;

300-tracheal tube connection assembly; 310-mounting a joint; 311-a first airflow channel; 320-tracheal body; 321-a second airflow channel;

400-materials to be welded.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical 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. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

In the preparation process of the power battery, the tab of the lithium ion battery is required to be welded with the pole piece base material. In the welding process, a dust hood is usually installed near the welding head to perform dust removal operation. However, because the dust hood is complex in structure and high in processing cost, the manufacturing cost of the whole welding device is high, and the welding processing cost of the lug and the pole piece base material is also high.

Based on the above consideration, in order to solve the problem that the welding processing cost of the tab and the pole piece substrate is high in the battery preparation process, the inventor has conducted intensive studies and designed a welding device, and through setting a dust collection channel and a dust collection port on a welding seat component in the welding device, the dust collection operation is conducted through the dust collection port and the dust collection channel, so that a dust collection cover is not required to be additionally arranged, the manufacturing cost of the whole welding device is low, and the welding processing cost of the tab and the pole piece substrate is also low.

The power consumption device formed by the batteries welded by the welding device provided by the embodiment of the application can be, but is not limited to, a mobile phone, a flat plate, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of description, the following examples will take welding devices provided in some embodiments of the present application as examples.

Referring to fig. 1-4, fig. 1 is a schematic diagram illustrating a welding device and a material 400 to be welded according to an embodiment of the application. Fig. 2 shows a schematic view of a weld holder assembly 200 and a gas pipe connection assembly 300 in the welding apparatus shown in fig. 1. Fig. 3 shows a front view of the weld holder assembly 200 and the tracheal tube connection assembly 300 of the connector of fig. 2. Figure 4 shows a cross-sectional view at A-A shown in figure 3. Some embodiments of the present application provide a welding apparatus that includes a bonding tool 100 and a bonding tool assembly 200. The anvil assembly 200 is disposed opposite the bonding tool 100 in a first direction, specifically, the zz' direction in fig. 1; the weld holder assembly 200 includes a mounting bracket 210 and a weld holder body 220 disposed on the mounting bracket 210; the mounting bracket 210 is configured with a first sub-channel 231, the welding base main body 220 is configured with a second sub-channel 232, and the first sub-channel 231 and the second sub-channel 232 are communicated with each other to form a dust collection channel 230; the holder body 220 is further provided with a dust collection port 240 facing one side of the horn 100 and communicating with the dust collection passage 230; wherein bonding tool 100 is movable toward and away from bond mount assembly 200 in a first direction.

Bonding tool 100 may be an ultrasonic bonding tool capable of generating ultrasonic vibrations at high frequencies. The bonding tool 100 moves proximally relative to the bonding tool assembly 200 and is capable of abutting the material 400 to be bonded. The welding head 100 repeatedly rubs the material 400 to be welded under ultrasonic high-frequency vibration, and heats the material 400 to be welded through friction, so that the temperature rises, and finally the welding is completed.

The side of the holder assembly 200 adjacent to the bonding tool 100 has a carrying surface for carrying the material 400 to be bonded. In some of these embodiments, the support surface is configured with securing teeth 221, the securing teeth 221 being capable of penetrating into the surface of the material 400 to be welded, thereby securing the material 400 to be welded.

The mounting bracket 210 is used for mounting the weld holder body 220, and the size of the mounting bracket 210 is generally larger than that of the weld holder body 220, so that the installation of the weld holder body 220 is facilitated. The end of the welding seat main body 220, which is close to the mounting bracket 210, is provided with a mounting table, a mounting hole is formed in the mounting table, and the welding seat main body passes through the mounting hole through a threaded connecting piece to be in threaded connection with the mounting bracket 210, so that the welding seat main body is convenient to assemble and disassemble. Of course, the mounting bracket 210 may be welded or adhesively connected to the holder body 220.

The end of the dust suction passage 230 remote from the dust collection port 240 is connected to the vacuum cleaner, so that negative pressure can be generated in the dust suction passage 230 to suck dust impurities generated in the ultrasonic welding process into the dust suction passage 230.

When the welding device provided by the embodiment of the application is used for welding the tab and the pole piece base material of the battery, the tab and the pole piece base material are borne on the welding seat assembly 200, and the welding head 100 is enabled to move relatively to the welding seat assembly 200 along the first direction, so that the welding head 100 is abutted against the tab and the ultrasonic welding operation is carried out. Dust and foreign matters generated during the ultrasonic welding process enter the dust collection channel 230 through the dust collection port 240 to be removed. Because the welding device provided by the application directly arranges the dust collection channel 230 on the welding seat assembly 200 to realize the dust collection function in the welding process, a dust collection cover with higher processing cost does not need to be additionally arranged, so that the manufacturing cost of the whole welding device is lower, and the welding processing cost of the tab and the pole piece base material is also lower.

The welding device provided by the embodiment of the application has the dust collection channel 230 arranged in the welding seat assembly 200, and performs dust collection operation through the dust collection channel 230 during welding, so that the dust collection position is ensured to be fixed and the welding device is close to the welded material (the distance is 0), and the dust collection effect is better. Meanwhile, compared with a welding device with a dust collection structure arranged outside, the dust collection channel 230 provided by the application can not interfere with other mechanisms and does not affect the welding effect. And when the welding seat assembly 200 is damaged, problems can be found through monitoring of the welding machine in time, and batch abnormality is not easy to occur. Meanwhile, the dust collection channel 230 can be processed together with the welding seat assembly 200, so that the processing process is simpler and the manufacturing cost is lower. Compared with the traditional dust removing mechanism, the welding device provided by the application has the advantages that the required dust removing effect can be achieved only by small energy consumption, and the economic benefit is better.

The structure of the welding device is specifically described below. Referring to fig. 5 and 6, fig. 5 is a schematic view of a soldering seat in the soldering apparatus shown in fig. 1. Fig. 6 shows a cross-sectional view at B-B shown in fig. 5.

Referring to fig. 3 in combination with fig. 4, in some embodiments, the mounting bracket 210 is further configured with a dust outlet 211 in communication with an end of the first sub-channel 231 remote from the second sub-channel 232.

Is connected with the second sub-channel 232 through the first sub-channel 231, and further forms the dust collection channel 230, so that when impurities are generated in the welding process, the impurities sequentially enter the second sub-channel 232 and the first sub-channel 231 through the dust collection port 240, and finally are collected through the dust outlet 211.

In some of these embodiments, the cross-sectional area of the first sub-channel 231 is less than or equal to the cross-sectional area of the second sub-channel 232.

The cross-sections of the first sub-channel 231 and the second sub-channel 232 may be circular, or may be elliptical or any other shape. By setting the cross-sectional area of the first sub-passage 231 to be smaller than or equal to the cross-sectional area of the second sub-passage 232, when the negative pressure generated at the dust outlet 211 is transmitted into the second sub-passage 232 after passing through the first sub-passage 231, the cross-sectional area of the negative pressure air flow does not become smaller and larger, thereby reducing the possibility of loss of the negative pressure air flow.

Referring to fig. 2-4, in some embodiments, a side surface of the holder body 220 facing the welding head 100 is provided with a plurality of fixing teeth 221 spaced apart, and the fixing teeth 221 are configured to be inserted into a surface of a material 400 to be welded.

The tips of the fixed teeth 221 are relatively sharp to facilitate penetration into the surface of the bottom of the material 400 to be welded. The fixing teeth 221 are inserted into the surface of the material 400 to be welded, so that the fixing of the welding holder main body 220 and the material 400 to be welded is simple.

Referring to fig. 2 and 4, in some embodiments, the welding apparatus further includes a gas tube connection assembly 300 coupled to the mounting bracket 210; the air pipe connection assembly 300 communicates with the dust outlet 211.

The air pipe connection assembly 300 is connected with the vacuum cleaner such that a negative pressure can be generated in the air pipe connection assembly 300, and the negative pressure can be transmitted to the dust collection port 240 through the air pipe connection assembly 300 and the dust outlet 211 and the dust collection passage 230.

By communicating the air pipe connection assembly 300 with the dust outlet 211, the impurities sucked in the dust suction passage 230 flow into the air pipe connection assembly 300 through the dust outlet 211 and are collected.

Referring to fig. 4, in some embodiments, the tracheal tube connection assembly 300 includes a mounting adapter 310 and a tracheal body 320 connected to each other; the mounting joint 310 is connected with the mounting bracket 210, the mounting joint 310 is provided with a first air flow channel 311, and the air pipe main body 320 is internally provided with a second air flow channel 321; the first air flow channel 311 is communicated with the second air flow channel 321, and one end of the first air flow channel 311, which is away from the second air flow channel 321, is communicated with the dust outlet 211.

The mounting adapter 310 may be threadably coupled to the mounting bracket 210. Specifically, the mounting joint 310 is provided with external threads, and the dust outlet 211 of the mounting bracket 210 is provided with internal threads, and the mounting joint 310 is connected with the mounting bracket 210 by screwing the internal threads and the external threads. The air pipe body 320 is connected to the vacuum cleaner on a side facing away from the mounting joint 310 so that the second air flow path 321 can generate negative pressure by the vacuum cleaner.

When the welding device is used for welding operation, the second airflow channel 321 generates negative pressure under the action of the vacuum cleaner, and the negative pressure is sequentially transmitted to the dust collection port 240 through the second airflow channel 321, the first airflow channel 311, the first sub-channel 231 and the second sub-channel 232, so that impurities generated in the welding process can be sucked into the dust collection channel 230 through the dust collection port 240 and finally transmitted to the vacuum dust collection cavity.

In some of these embodiments, the cross-sectional area of first airflow channel 311 is less than or equal to the cross-sectional area of second airflow channel 321.

The cross-sections of the first air flow channel 311 and the second air flow channel 321 may be circular, elliptical, or any other shape. By setting the cross-sectional area of the first air flow passage 311 to be smaller than or equal to the cross-sectional area of the second air flow passage 321, when the negative pressure generated by the vacuum cleaner is transmitted into the first air flow passage 311 after passing through the second air flow passage 321, the cross-sectional area of the negative pressure air flow does not become smaller and larger, thereby reducing the possibility of loss of the negative pressure air flow.

In some of these embodiments, the welding apparatus further includes a vacuum cleaner (not shown) in communication with an end of the second airflow channel 321 facing away from the first airflow channel 311.

The inside of vacuum cleaner has electronic air exhauster, and the high-speed operation after the circular telegram makes the inside of vacuum cleaner form instant vacuum, and inside atmospheric pressure is less than external atmospheric pressure greatly, under this atmospheric pressure differential effect, makes the second air current passageway 321 interior produce the negative pressure, and this negative pressure passes through first air current passageway 311, first subchannel 231 and second subchannel 232 in proper order and transmits dust collection port 240 department to can inhale the operation to the impurity of dust collection port 240 department, finally make impurity inhale to the vacuum cleaner.

In some of these embodiments, the welding apparatus further includes a control valve (not shown) installed between the second air flow path 321 and the vacuum cleaner, the control valve being used to control the connection or disconnection of the second air flow path 321 from or from the vacuum cleaner.

The control valve may be a solenoid valve. The second airflow channel 321 is controlled to be communicated with or disconnected from the vacuum cleaner through the control valve, so that negative pressure control at the dust collection port 240 in the whole welding process can be more accurate, and energy is saved.

In some of these embodiments, the welding device includes a welding state and a non-welding state; in the welding state, the control valve is used for communicating the second airflow channel 321 with the vacuum cleaner; in the non-welding state, the control valve is used to disconnect the second air flow path 321 from the vacuum cleaner.

The control valve can be connected with a controller, and a user sets the time for the controller to adjust the control valve according to the time required for welding each tab and the pole piece substrate, so that in a welding state, the controller adjusts the control valve to a corresponding passage to enable the second airflow channel 321 to be communicated with the vacuum cleaner; and when in a non-welding state, the controller adjusts the control valve to a corresponding closed circuit so as to disconnect the second airflow channel 321 from the vacuum cleaner, thus enabling the whole welding process to be more intelligent.

When the electrode lug and the electrode plate base material are required to be welded, the control valve controls the second airflow channel 321 to be communicated with the vacuum cleaner, so that a negative pressure environment can be formed at the dust collecting port 240, and impurities generated in the welding process are sucked away. And when the welding of the electrode lug and the electrode plate base material is finished, the control valve controls the second airflow channel 321 to be disconnected with the vacuum cleaner, so that unnecessary energy consumption is reduced, the whole welding process is more energy-saving, and the welding processing cost is lower.

In some embodiments, the welding apparatus further includes a transducer (not shown) coupled to the horn 100 for converting electrical energy into mechanical waves and transmitting the mechanical waves to the horn 100 in a first direction. The electric energy is converted into mechanical waves through the transducer, so that the welding head 100 can generate high-frequency vibration, the material 400 to be welded, which is abutted against the welding head 100, is subjected to friction heat generation under the high-frequency vibration of the welding head 100, and the temperature is increased until the welding is completed.

In some embodiments, the welding apparatus further includes a moving assembly (not shown) coupled to the weld head 100 for moving the weld head 100 in a first direction toward and away from the weld head mount assembly 200. The moving assembly may be a sliding block and sliding chute assembly which are matched with each other, or a screw transmission assembly, which is not particularly limited. The welding head 100 is driven by the moving assembly to move towards and away from the welding seat assembly 200 along the first direction, so that the welding head 100 abuts against the material 400 to be welded to perform welding operation, and when the welding is completed, the welding head is separated from the material.

Some embodiments of the present application provide a welding apparatus that includes a bonding tool 100, a bonding tool assembly 200, an air tube connection assembly 300, and a vacuum cleaner. The anvil assembly 200 is disposed opposite the bonding tool 100 in a first direction; the weld holder assembly 200 includes a mounting bracket 210 and a weld holder body 220 disposed on the mounting bracket 210; and a dust collection port 240 located at a side of the anvil assembly 200 facing the horn 100 and communicating with the dust collection channel 230. The mounting bracket 210 is configured with a first sub-channel 231, the welding base main body 220 is configured with a second sub-channel 232, and the first sub-channel 231 and the second sub-channel 232 are communicated with each other to form a dust collection channel 230; dust collection port 240 is provided on a side of mount body 220 facing bonding tool 100; the mounting bracket 210 is further configured with a dust outlet 211 communicating with an end of the first sub-channel 231 remote from the second sub-channel 232 of the first sub-channel 231, and a side surface of the welding seat main body 220 facing the welding head 100 is provided with a plurality of fixing teeth 221 disposed at intervals, and the fixing teeth 221 are used for being inserted into a surface of the material 400 to be welded. Wherein bonding tool 100 is movable toward and away from bond mount assembly 200 in a first direction. The tracheal tube connection assembly 300 includes a mounting adapter 310 and a tracheal tube body 320 connected to each other; the mounting joint 310 is connected with the mounting bracket 210, the mounting joint 310 is provided with a first air flow channel 311, and the air pipe main body 320 is internally provided with a second air flow channel 321; the first air flow channel 311 is communicated with the second air flow channel 321, and one end of the first air flow channel 311, which is away from the second air flow channel 321, is communicated with the dust outlet 211. The vacuum cleaner communicates with an end of the second airflow path 321 facing away from the first airflow path 311.

When the welding device provided by the embodiment of the application is used for welding the tab and the pole piece base material of the battery, the tab and the pole piece base material are borne on the welding seat assembly 200, and the welding head 100 is enabled to move relatively to the welding seat assembly 200 along the first direction, so that the welding head 100 is abutted against the tab and the ultrasonic welding operation is carried out. Dust and impurities generated in the ultrasonic welding process enter the second sub-channel 232, the first sub-channel 231, the first air flow passage and the second air flow channel 321 in sequence through the dust collecting port 240, and finally enter the vacuum cleaner for collection. Because the welding device provided by the application directly arranges the dust collection channel 230 on the welding seat assembly 200 to realize the dust collection function in the welding process, a dust collection cover with higher processing cost does not need to be additionally arranged, so that the manufacturing cost of the whole welding device is lower, and the welding processing cost of the tab and the pole piece base material is also lower. The fixing teeth 221 are inserted into the surface of the material 400 to be welded, so that the fixing of the welding seat main body 220 and the material 400 to be welded is simpler.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A welding device, the welding device comprising:

Welding head;

The welding seat assembly and the welding head are oppositely arranged along a first direction; the welding seat assembly comprises a mounting bracket and a welding seat main body arranged on the mounting bracket; the mounting bracket is provided with a first sub-channel, the welding seat main body is provided with a second sub-channel, and the first sub-channel and the second sub-channel are communicated with each other to form a dust collection channel; the welding seat main body is also provided with a dust collection port which faces one side of the welding head and is communicated with the dust collection channel;

Wherein the horn is movable in a first direction toward and away from the anvil assembly.

2. The welding device of claim 1, wherein the mounting bracket is further configured with a dust outlet in communication with an end of the first sub-channel remote from the second sub-channel.

3. The welding device of claim 2, wherein a cross-sectional area of the first sub-channel is less than or equal to a cross-sectional area of the second sub-channel.

4. The welding device as defined in claim 2, wherein a side surface of said weld holder body facing said welding head is provided with a plurality of spaced apart fixed teeth for insertion into a surface of a material to be welded.

5. The welding device of claim 2, further comprising a gas pipe connection assembly connected to the mounting bracket;

The air pipe connecting assembly is communicated with the dust outlet.

6. The welding apparatus of claim 5 wherein the gas tube connection assembly includes a mounting nipple and a gas tube body connected to each other;

The mounting joint is connected with the mounting bracket, the mounting joint is provided with a first airflow channel, and the air pipe main body is internally provided with a second airflow channel; the first airflow channel is communicated with the second airflow channel, and one end of the first airflow channel, which is away from the second airflow channel, is communicated with the dust outlet.

7. The welding device of claim 6, wherein a cross-sectional area of the first airflow channel is less than or equal to a cross-sectional area of the second airflow channel.

8. The welding device of claim 6 or 7, further comprising a vacuum cleaner in communication with an end of the second airflow passage facing away from the first airflow passage.

9. The welding device of claim 8, further comprising a control valve mounted between the second airflow passage and the vacuum cleaner, the control valve for controlling communication or disconnection of the second airflow passage and the vacuum cleaner.

10. The welding device of claim 9, wherein the welding device comprises a welding state and a non-welding state;

in the welding state, the control valve is used for communicating the second airflow channel with the vacuum cleaner;

In the non-welding state, the control valve is configured to disconnect the second airflow passage from the vacuum cleaner.