Pressing device and welding equipment

Abstract

This utility model belongs to the field of battery manufacturing technology and discloses a pressing device and welding equipment. The pressing device includes a pressing head assembly. The pressing head assembly includes a pressing head body and multiple pressing structures. The pressing head body has a through-hole welding channel configured to allow welding light to pass through. Multiple pressing structures are arranged around the welding channel. One end of each pressing structure is detachably connected to the pressing head body, and the other end is used to press against the workpiece to be welded. This pressing device is highly flexible, reduces replacement costs, and simplifies replacement procedures.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a pressure-reducing device and welding equipment. Background Technology

[0002] A battery module consists of several battery cells. When assembling a battery module, several battery cells need to be stacked and arranged, and series and parallel connections between battery cells are achieved by welding adapter plates to the positive and negative terminals of the battery cells.

[0003] When welding adapter plates and terminals, the adapter plate needs to be placed on the positive and negative terminals of the battery cell. Then, pressure is applied using a welding head to press the adapter plate firmly against the battery terminals to prevent movement or deformation during the welding process and ensure welding quality. However, after frequent use, the contact area between the welding head and the adapter plate is prone to wear or even breakage, leading to poor contact and affecting the welding quality.

[0004] However, the existing welding head is a single, integral structure with poor flexibility. When replacing the welding head, the entire welding head needs to be replaced, which increases the complexity and cost of the replacement work.

[0005] Therefore, there is an urgent need for a pressure-reducing device and welding equipment to solve the above problems. Utility Model Content

[0006] According to one aspect of the present invention, the object is to provide a pressure device that is highly flexible, reduces replacement costs, and simplifies replacement procedures.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The pressing device includes:

[0009] A pressure head assembly, comprising a pressure head body and multiple pressure structures, wherein the pressure head body has a through-hole welding channel configured to allow welding light to pass through;

[0010] Multiple pressure-blocking structures are arranged around the welding channel. One end of each pressure-blocking structure is detachably connected to the pressure head body, and the other end is used to press against the workpiece to be welded.

[0011] As a preferred embodiment of the pressing device provided by this utility model, a plurality of the pressing structures are evenly spaced in the circumferential direction of the welding channel.

[0012] As a preferred embodiment of the pressure-resistant device provided by this utility model, the pressure head body is provided with an airflow channel, the air inlet of the airflow channel is connected to a protective gas source, the protective gas source can generate welding protective gas, and the air outlet of the airflow channel faces between several of the pressure-resistant structures.

[0013] As a preferred embodiment of the pressure-reducing device provided by this utility model, the airflow channel includes an inlet pipe and an outlet pipe that are interconnected. The air inlet is located at the end of the inlet pipe away from the outlet pipe, and the air outlet is located at the end of the outlet pipe away from the inlet pipe. The outlet pipe and the inlet pipe are arranged at an obtuse angle.

[0014] As a preferred embodiment of the pressing device provided by this utility model, the pressing head body has a mounting hole, and the pressing structure is threadedly connected to the mounting hole.

[0015] As a preferred embodiment of the pressing device provided by this utility model, the pressing structure pressing against the end face of the workpiece to be welded is polygonal.

[0016] As a preferred embodiment of the pressing device provided by this utility model, the pressing device further includes a support base and a driving mechanism. The support base is connected to the driving mechanism, and the pressing head body is connected to the support base. The pressing head body can move under the drive of the driving mechanism.

[0017] As a preferred embodiment of the pressing device provided by this utility model, the pressing device further includes a connecting slide rod, one end of which is connected to the support seat, and the other end of which is provided with a locking head. The connecting slide rod can slide through the pressing head body, and the locking head is located on the side of the pressing head body away from the support seat.

[0018] As a preferred embodiment of the pressing device provided by this utility model, the pressing device further includes an elastic element, which is connected between the bearing seat and the pressing head body, and the compression direction of the elastic element is parallel to the moving direction of the pressing head body along the connecting slide rod.

[0019] According to another aspect of the present invention, the object is to provide a welding device comprising a welding apparatus, a shielding gas source, and a pressure device as described in any of the above embodiments, wherein the welding apparatus is configured to emit welding light toward the workpiece to be welded, and the shielding gas source is configured to provide welding shielding gas to the workpiece to be welded.

[0020] The beneficial effects of this utility model are:

[0021] The pressure device provided by this utility model includes a pressure head assembly. The pressure head assembly includes a pressure head body and multiple pressure-blocking structures. A welding channel is formed through the pressure head body, and this welding channel is configured to allow welding light to pass through. Through this welding channel, interference with the welding light is avoided when the pressure head body is welding the workpiece, thus preventing any disruption to the welding process.

[0022] Multiple pressure-bearing structures are arranged around the welding channel. One end of each pressure-bearing structure is detachably connected to the pressure head body, and the other end is used to press against the workpiece to be welded. These multiple pressure-bearing structures provide pressure against the workpiece at multiple locations, thereby improving the stability and reliability of the pressure. By detachably connecting each pressure-bearing structure to the pressure head body, individual structures can be replaced if one is damaged, increasing the flexibility of the pressure-bearing device and reducing the cost of replacing the pressure-bearing structures. Furthermore, this invention allows for the replacement of smaller pressure-bearing structures individually, simplifying the replacement process compared to replacing the entire pressure-bearing device.

[0023] The welding equipment provided by this utility model, by setting the above-mentioned pressure device, can achieve reliable pressure on the workpiece to be welded, thereby ensuring the quality and efficiency of welding. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the pressing device provided in an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the pressure head assembly provided in an embodiment of the present utility model;

[0027] Figure 3 This is a top view of the pressure head assembly provided in this embodiment of the utility model;

[0028] Figure 4 yes Figure 3 Sectional view along the AA direction.

[0029] In the picture:

[0030] 100. Pressure head assembly; 110. Pressure head body; 111. Welding channel; 112. Air inlet; 113. Air outlet; 114. Inlet pipe; 115. Outlet pipe; 116. Connecting hole; 120. Pressure-resistant structure;

[0031] 200. Support seat;

[0032] 300. Connecting slide bar; 310. Clip;

[0033] 400. Elastic element. Detailed Implementation

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] This embodiment provides a pressure-reducing device and a welding apparatus. The welding apparatus includes a welding device, a shielding gas source, and the pressure-reducing device provided in this embodiment. The welding device is configured to emit welding light, such as a laser, to the workpiece to be welded, and the shielding gas source is configured to provide welding shielding gas to the workpiece to be welded.

[0044] Figure 1 This is a schematic diagram of the pressing device provided in an embodiment of this utility model. (Refer to...) Figure 1The pressing device provided in this embodiment includes a pressing head assembly 100, a support base 200, and a driving mechanism. The support base 200 is connected to the driving mechanism, and the pressing head assembly 100 is connected to the support base 200. The pressing head assembly 100 can move under the drive of the driving mechanism, thereby moving between the workpiece to be welded and the welding device. In this embodiment, the workpiece to be welded is specifically an adapter piece and an electrode post that need to be welded together. The driving mechanism can specifically adopt existing technologies such as robotic arms, as long as it can realize the movement function of the pressing head assembly 100. Its specific structure and type are not limited in this embodiment.

[0045] Figure 2 This is a schematic diagram of the pressure head assembly provided in an embodiment of the present invention. Figure 3 This is a top view of the pressure head assembly provided in an embodiment of this utility model. (Refer to...) Figures 1-3 The pressure head assembly 100 includes a pressure head body 110 and a plurality of pressing structures 120. The pressure head body 110 is connected to the support base 200, and the pressing structures 120 are disposed on the side of the pressure head body 110 opposite to the support base 200. A welding channel 111 is formed through the pressure head body 110, which is configured to allow welding light to pass through. Through the welding channel 111, interference of the pressure head body 110 with the welding light is avoided when welding the workpiece, thereby avoiding affecting the welding process.

[0046] Specifically, multiple pressure structures 120 are arranged around the welding channel 111. One end of each pressure structure 120 is detachably connected to the pressure head body 110, and the other end is used to press against the workpiece to be welded. Through these multiple pressure structures 120, pressure can be provided to the workpiece at multiple locations, thereby improving the stability and reliability of the pressure. By detachably connecting each of the multiple pressure structures 120 to the pressure head body 110, individual pressure structures 120 can be replaced when damaged, increasing the flexibility of the pressure device and reducing the cost of replacing the pressure structures 120. Furthermore, the pressure device in this embodiment can replace smaller pressure structures 120 individually, simplifying the replacement process compared to replacing the entire pressure device.

[0047] To be more specific, continue to refer to Figures 1-3The pressing device also includes a connecting slide rod 300. One end of the connecting slide rod 300 is connected to the support base 200, and the other end of the connecting slide rod 300 is provided with a locking head 310. The pressing head body 110 has a connecting hole 116, and the connecting slide rod 300 can slide through the connecting hole 116. The locking head 310 is located on the side of the pressing head body 110 away from the support base 200. The cross-sectional area of ​​the locking head 310 is larger than the cross-sectional area of ​​the connecting hole 116 to prevent the connecting slide rod 300 from coming out of the pressing head body 110. Through the connecting slide rod 300, the pressing head body 110 and the support base 200 can be movably connected, improving the flexibility of the pressing device when pressing the workpiece to be welded.

[0048] Preferably, the pressure head body 110 has four connecting holes 116 arranged in a rectangular array. Correspondingly, there are also four connecting slide rods 300, each corresponding to and passing through one of the connecting holes 116. This arrangement improves the connection reliability between the pressure head body 110 and the support seat 200, and the four connecting slide rods 300 guide the movement of the pressure head body 110, ensuring stability when the pressure head body 110 presses against the workpiece to be welded and moves, thereby enhancing the pressing effect.

[0049] More specifically, the pressing device also includes an elastic element 400. The elastic element 400 is connected between the support base 200 and the pressure head body 110, and the compression direction of the elastic element 400 is parallel to the movement direction of the pressure head body 110 along the connecting slide rod 300. When the pressing structure 120 abuts against the workpiece to be welded, the elastic element 400 can undergo compressive deformation, thereby providing a buffering effect and preventing rigid contact between the pressing structure 120 and the workpiece to be welded, thus protecting both the pressing structure 120 and the workpiece to be welded and preventing damage to both. In this embodiment, the elastic element 400 can specifically be a spring.

[0050] Preferably, multiple elastic elements 400 are provided. In this embodiment, the multiple elastic elements 400 are arranged in a rectangular array. This arrangement improves the uniformity of force distribution on the pressure head body 110, thereby enhancing the reliability of the buffer.

[0051] Preferably, in this embodiment, the elastic element 400 and the connecting slide rod 300 are coaxially arranged, with the elastic element 400 specifically sleeved on the outside of the connecting slide rod 300. Through this arrangement, the connecting slide rod 300 can provide guidance and support for the elastic element 400 during compression or restoration of its original shape.

[0052] Continue to refer to Figure 2Multiple pressure-receiving structures 120 are evenly spaced around the circumference of the welding channel 111, meaning that the multiple pressure-receiving structures 120 are arranged in a centrally symmetrical manner. This arrangement ensures that the pressure head assembly 100 and the workpiece to be welded are subjected to uniform force, preventing gaps, movement, or slippage between the pressure-receiving structures 120 and the workpiece, thereby further guaranteeing welding quality.

[0053] Specifically, in this embodiment, the pressure head body 110 has a mounting hole, and the pressure-blocking structure 120 is threaded into the mounting hole. This arrangement facilitates the installation and removal of the pressure-blocking structure 120 from the pressure head body 110, reducing the difficulty of replacing the pressure-blocking structure 120.

[0054] More specifically, the pressing structure 120 presses against the end face of the workpiece to be welded, which is polygonal. In this embodiment, the end face is specifically a regular hexagon. This arrangement improves the pressing stability between the pressing structure 120 and the workpiece to be welded.

[0055] Figure 4 yes Figure 3 Sectional view along the AA direction. (Refer to...) Figure 2 and Figure 4 The pressure head body 110 has an airflow channel. The air inlet 112 of the airflow channel is connected to a protective gas source, which generates welding protective gas. The air outlet 113 of the airflow channel faces the space between several pressure structures 120. Through this airflow channel, welding protective gas can be provided to the welding area of ​​the workpiece to be welded, ensuring the safety of the welding process and improving the welding quality. Furthermore, a gap is left between two adjacent pressure structures 120 to facilitate the flow of welding protective gas to the welding area and ensure air circulation at the welding area, preventing excessively high temperatures from affecting the welding effect, ensuring product qualification rate, and also preventing expanding gas from damaging the pressure head assembly 100, further reducing maintenance costs.

[0056] Specifically, the airflow channel includes an inlet pipe 114 and an outlet pipe 115 that are interconnected. An inlet 112 is located at the end of the inlet pipe 114 away from the outlet pipe 115, and an outlet 113 is located at the end of the outlet pipe 115 away from the inlet pipe 114. The outlet pipe 115 and the inlet pipe 114 are arranged at an obtuse angle. In this embodiment, the inlet pipe 114 is opened in a direction perpendicular to the central axis of the welding channel 111, and the outlet pipe 115 is inclined towards the central axis of the welding channel 111. This inclined arrangement of the outlet pipe 115 ensures the airflow direction of the welding shielding gas blown from the outlet 113, allowing the welding shielding gas to be blown onto the welding area of ​​the workpiece. Furthermore, the airflow entering the inlet pipe 114 is amplified when it flows over the inclined sidewall of the outlet pipe 115.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pressing device, characterized in that, include: A pressure head assembly (100) includes a pressure head body (110) and a plurality of pressure structures (120), wherein the pressure head body (110) has a through-hole welding channel (111) configured to allow welding light to pass through; Multiple pressure structures (120) are arranged around the welding channel (111), one end of each pressure structure (120) is detachably connected to the pressure head body (110), and the other end is used to press against the workpiece to be welded.

2. The pressing device according to claim 1, characterized in that, Multiple pressure-blocking structures (120) are evenly spaced in the circumferential direction of the welding channel (111).

3. The pressing device according to claim 1, characterized in that, The pressure head body (110) has an airflow channel, the air inlet (112) of the airflow channel is connected to a protective gas source, the protective gas source can generate welding protective gas, and the air outlet (113) of the airflow channel faces between several of the pressure structures (120).

4. The pressing device according to claim 3, characterized in that, The airflow channel includes an inlet pipe (114) and an outlet pipe (115) that are connected to each other. The air inlet (112) is located at the end of the inlet pipe (114) away from the outlet pipe (115), and the air outlet (113) is located at the end of the outlet pipe (115) away from the inlet pipe (114). The outlet pipe (115) and the inlet pipe (114) are arranged at an obtuse angle.

5. The pressing device according to claim 1, characterized in that, The pressure head body (110) has a mounting hole, and the pressure structure (120) is threaded into the mounting hole.

6. The pressing device according to claim 1, characterized in that, The pressure structure (120) is polygonal and presses against the end face of the workpiece to be welded.

7. The pressing device according to any one of claims 1-6, characterized in that, The pressing device further includes a support base (200) and a driving mechanism. The support base (200) is connected to the driving mechanism, and the pressing head body (110) is connected to the support base (200). The pressing head body (110) can move under the drive of the driving mechanism.

8. The pressing device according to claim 7, characterized in that, The pressing device further includes a connecting slide rod (300), one end of which is connected to the support seat (200), and the other end of which is provided with a locking head (310). The connecting slide rod (300) can slide through the pressing head body (110) and the locking head (310) is located on the side of the pressing head body (110) away from the support seat (200).

9. The pressing device according to claim 8, characterized in that, The pressing device further includes an elastic element (400), which is connected between the bearing seat (200) and the pressure head body (110). The compression direction of the elastic element (400) is parallel to the moving direction of the pressure head body (110) along the connecting slide rod (300).

10. Welding equipment, characterized in that, The device includes a welding apparatus, a shielding gas source, and a pressure device as described in any one of claims 1-9, wherein the welding apparatus is configured to emit welding light toward the workpiece to be welded, and the shielding gas source is configured to provide welding shielding gas to the workpiece to be welded.

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