A presser foot device for improving the cleanliness of battery cap welding

Abstract

The utility model discloses a kind of foot pressure device for improving battery cap welding cleanliness, the device solves the problems of prior art in welding cleanliness, positioning and buffering etc. by unique structure design, the foot pressure device main body outside is equipped with a cover, bottom has battery positioning sleeve, can isolate external impurities;Internal inner rod is equipped with air inlet, cavity, bottom has nitrogen hole, can pass into inert gas and discharge welding area impurities, improve cleanliness, the cap positioning platform in cavity accurately positions cap, and battery positioning sleeve is cooperated to realize accurate welding, cover and inner rod are connected by sliding block and sliding groove sliding, and buffer spring is equipped on sliding block, can buffer impact force, protect equipment, in addition, the installation ring groove on the top of inner rod facilitates device installation, the foot pressure device effectively improves the quality and efficiency of battery cap welding, with good application prospect.

Description

Technical Field

[0001] This utility model belongs to the field of battery production technology, specifically relating to a presser foot device for improving the cleanliness of battery cap welding. Background Technology

[0002] The battery cap welding press foot device is an auxiliary mechanism used to apply stable pressure to the battery cap and related components to be welded during the battery cap welding process. It is usually installed at the execution end of the welding equipment. It contacts the part to be welded through a specific press head structure, providing uniform and controllable pressure before and during welding to ensure that the battery cap fits tightly and is accurately positioned with the shell or electrode assembly. This reduces the impact of welding gaps and thermal deformation on welding quality, thereby ensuring the sealing, conductivity and structural strength of the welded joint. It is an important component for improving the stability and reliability of battery cap welding.

[0003] However, the existing battery cap welding foot device causes the nitrogen to dissipate quickly due to the excessive height during nitrogen blowing, failing to fully provide nitrogen protection and resulting in the product turning black or yellow. Utility Model Content

[0004] The purpose of this utility model is to provide a presser foot device that improves the cleanliness of battery cap welding, so as to solve the problem mentioned in the background art that the existing battery cap welding presser foot device causes the nitrogen to dissipate quickly due to excessive height when blowing nitrogen, thus failing to fully play the role of nitrogen protection and causing the product to turn black and yellow.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a presser foot device for improving the cleanliness of battery cap welding, comprising a presser foot device body; An inner rod is provided inside the main body of the presser foot device, an air inlet is provided in the middle of the inner rod, and a cavity is provided at the bottom of the air inlet. An outer cover is provided on the outer side of the main body of the presser foot device, and a battery positioning sleeve is provided at the bottom of the outer cover.

[0006] Preferably, a groove is provided at the middle position of the outer side of the inner rod, and a slider is provided at the inner side of the outer sleeve. The outer sleeve is slidably connected to the inner rod through the slider and the groove.

[0007] Preferably, a first buffer spring and a second buffer spring are respectively provided at the upper and lower sides of the slider.

[0008] Preferably, a cap positioning platform is provided inside the cavity, and an air guide groove is provided at the edge of the cap positioning platform. The diameter of the cap positioning platform is 11 mm.

[0009] Preferably, a nitrogen vent is provided at the bottom of the inner rod, and the height of the nitrogen vent is 0.3 mm.

[0010] Preferably, an mounting ring groove is provided at the top of the inner rod, and the main body of the presser foot device is fixed by the mounting ring groove.

[0011] Compared with the prior art, this utility model provides a presser foot device to improve the cleanliness of battery cap welding, which has the following beneficial effects: Through the arrangement of an outer casing, a battery positioning sleeve, a sliding groove, a slider, a first buffer spring, and a second buffer spring, the battery positioning sleeve is located at the bottom of the outer casing on the outer side of the presser foot device. During the welding process, the battery positioning sleeve can accurately fix the battery in a preset position, providing a precise positioning reference for welding the battery cap. Surrounding the battery, it effectively prevents external dust and impurities from entering the welding area, creating a relatively clean environment for welding and thus improving welding quality. The sliding groove at the middle of the outer side of the inner rod cooperates with the slider on the inner side of the outer casing, allowing the outer casing to slide against the inner rod via the slider and sliding groove. This connection method ensures that the outer casing can slide flexibly up and down relative to the inner rod to adapt to different working requirements. The dynamic changes during the welding process ensure the stability of the connection between the two components, preventing loosening or disengagement of parts during operation and guaranteeing normal operation. The first and second buffer springs on the upper and lower sides of the slider play a crucial role in buffering and shock absorption. During the operation of the presser foot device, it is inevitably subjected to various impact forces, such as during the moment of pressing down and lifting. At this time, the first and second buffer springs can absorb and disperse these impact forces, preventing excessive impact forces from being directly transmitted to the battery or welding equipment, thereby effectively protecting the battery from damage, extending the service life of the welding equipment, and also helping to improve the stability and precision of the welding process.

[0012] By incorporating a cap positioning platform, a gas guide groove, and a nitrogen port, the cap positioning platform, with a diameter of millimeters, is designed to precisely position the battery cap and stably place it at the required center position for welding. This ensures the accuracy of the cap's position during welding, significantly improving welding precision and consistency, and effectively reducing welding defects caused by cap position deviations. The gas guide groove on the edge of the cap positioning platform works in conjunction with the nitrogen port, which is millimeters high at the bottom of the inner rod. When inert gas, such as nitrogen, enters the cavity from the inlet, it is guided by the gas guide groove to flow evenly to the nitrogen port and then discharged from the nitrogen port to the welding area. This design creates a stable and uniform airflow environment for the inert gas in the welding area, effectively removing air and impurities from the welding area, providing a clean atmosphere for welding, significantly reducing the risk of impurities entering during welding, and improving welding quality and reliability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the inner rod in this utility model.

[0015] Figure 3 This is a schematic diagram of the outer casing in this utility model.

[0016] In the diagram: 1. Presser foot device body; 2. Inner rod; 3. Outer sleeve; 4. Air inlet; 5. Cavity; 6. Cap positioning platform; 7. Air guide groove; 8. Nitrogen port; 9. Slide groove; 10. Mounting ring groove; 11. First buffer spring; 12. Slider; 13. Second buffer spring; 14. Battery positioning sleeve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides, for example Figure 1-3 The presser foot device shown is for improving the cleanliness of battery cap welding, and includes a presser foot device body 1; An inner rod 2 is provided inside the main body 1 of the presser foot device. An air inlet 4 is provided in the middle of the inner rod 2. A cavity 5 is provided at the bottom of the air inlet 4. An outer sleeve 3 is provided on the outer side of the main body 1 of the presser foot device, and a battery positioning sleeve 14 is provided at the bottom of the outer sleeve 3.

[0019] A groove 9 is provided at the middle position of the outer side of the inner rod 2, and a slider 12 is provided at the inner side of the outer sleeve 3. The outer sleeve 3 is slidably connected to the inner rod 2 through the slider 12 and the groove 9.

[0020] A first buffer spring 11 and a second buffer spring 13 are respectively installed on the upper and lower sides of the slider 12.

[0021] A cap positioning platform 6 is provided inside the cavity 5, and an air guide groove 7 is provided at the edge of the cap positioning platform 6. The diameter of the cap positioning platform 6 is 11 mm.

[0022] A nitrogen vent 8 is provided at the bottom of the inner rod 2, and the height of the nitrogen vent 8 is 0.3 mm.

[0023] An installation ring groove 10 is provided at the top of the inner rod 2, and the main body 1 of the pressure foot device is installed and fixed through the installation ring groove 10.

[0024] In this embodiment, the specific implementation steps of a presser foot device for improving the cleanliness of battery cap welding are as follows: The main body 1 of the presser foot device is accurately installed onto the corresponding battery cap welding equipment via the mounting ring groove 10 provided at the top of the inner rod 2, ensuring a stable installation. The air inlet 4 is connected to a nitrogen or other inert gas supply system, ensuring that the gas can smoothly enter the cavity 5 through the air inlet 4 and then exit to the welding area through the nitrogen hole 8. The battery to be welded is placed on the welding worktable, and the battery is positioned by the battery positioning sleeve 14 at the bottom of the outer sleeve 3, ensuring that the battery is in the accurate welding position. The battery cap is placed on the cap positioning platform 6 inside the cavity 5. The cap positioning platform 6 has a diameter of 11 mm, is adapted to the battery cap, and can accurately position the cap, placing it in the center of the welding position. The welding equipment is started, and the gas supply system is turned on, allowing nitrogen or other inert gases to enter the cavity 5 through the air inlet 4. The gas flows within the cavity 5, passing through the cap... The gas is guided through the gas channel 7 on the edge of the positioning platform 6, and then discharged from the nitrogen hole 8 at a height of 0.3 mm at the bottom of the inner rod 2, forming a relatively clean environment in the welding area and expelling air and impurities from the welding area. During the welding process, the presser foot device moves with the welding equipment. The outer sleeve 3 and the inner rod 2 are slidably connected through the slider 12 and the slide groove 9. The first buffer spring 11 and the second buffer spring 13 on the upper and lower sides of the slider 12 play a buffering role, absorbing and buffering the impact force generated during the welding process, avoiding damage to the battery and welding equipment, and ensuring the stability of the welding process. After the welding is completed, first turn off the gas supply system and stop the introduction of inert gases such as nitrogen into the welding area. Then turn off the welding equipment, remove the welded battery and cap from the presser foot device, place them in the designated position, and check the wear of each component of the device. If there are any damaged components or insufficient elasticity of the buffer springs, replace or repair them in time for the next use.

[0025] like Figure 1-3 As shown, an outer sleeve 3 is provided on the outer side of the main body 1 of the presser foot device, a battery positioning sleeve 14 is provided at the bottom of the outer sleeve 3, a sliding groove 9 is provided at the middle of the outer side of the inner rod 2, and a slider 12 is provided on the inner side of the outer sleeve 3. The outer sleeve 3 is slidably connected to the inner rod 2 through the slider 12 and the sliding groove 9. A first buffer spring 11 and a second buffer spring 13 are respectively provided on the upper and lower sides of the slider 12.

[0026] Preferably, a battery positioning sleeve 14 is provided at the bottom of the outer sleeve 3 on the outer side of the main body 1 of the presser foot device. During the welding process, the battery positioning sleeve 14 can accurately fix the battery in a preset position, providing a precise positioning reference for the welding of the battery cap. Surrounding the battery, it effectively prevents external dust and impurities from entering the welding area, creating a relatively clean environment for welding and thus improving welding quality. The groove 9 at the middle position of the outer side of the inner rod 2 cooperates with the slider 12 on the inner side of the outer sleeve 3, allowing the outer sleeve 3 to slide and connect with the inner rod 2 through the slider 12 and the groove 9. This connection method ensures that the outer sleeve 3 can slide flexibly up and down relative to the inner rod 2 to adapt to different working requirements and dynamic changes during the welding process. This also ensures the stability of the connection between the two, preventing any loosening or disengagement of components during operation of the entire presser foot device, thus guaranteeing the normal operation of the device. The first buffer spring 11 and the second buffer spring 13, respectively set on the upper and lower sides of the slider 12, play a crucial role in buffering and shock absorption. During the operation of the presser foot device, it will inevitably be subjected to various impact forces, such as at the moment of pressing down and lifting. At this time, the first buffer spring 11 and the second buffer spring 13 can absorb and disperse these impact forces, preventing excessive impact forces from being directly transmitted to the battery or welding equipment, thereby effectively protecting the battery from damage, extending the service life of the welding equipment, and also helping to improve the stability and accuracy of the welding process.

[0027] like Figure 1 and Figure 2 As shown, a cap positioning platform 6 is provided inside the cavity 5, and an air guide groove 7 is provided at the edge of the cap positioning platform 6. The diameter of the cap positioning platform 6 is 11 mm. A nitrogen hole 8 is provided at the bottom of the inner rod 2, and the height of the nitrogen hole 8 is 0.3 mm.

[0028] Preferably, the cap positioning platform 6 inside the cavity 5 has a diameter of 11 mm and is adapted to the battery cap. This design can accurately position the battery cap and stably place it in the center position required for welding, ensuring the accuracy of the cap position during welding, greatly improving the precision and consistency of welding, and effectively reducing welding defects caused by cap position deviation. The air guide groove 7 set on the edge of the cap positioning platform 6 works in conjunction with the nitrogen hole 8 at the bottom of the inner rod 2 with a height of 0.3 mm. When inert gas such as nitrogen enters the cavity 5 from the air inlet, it will be guided by the air guide groove 7 to flow evenly to the nitrogen hole 8 and discharged from the nitrogen hole 8 to the welding area. This design can make the inert gas form a stable and uniform airflow environment in the welding area, effectively expelling air and impurities in the welding area, providing a clean atmosphere for welding, significantly reducing the risk of impurities entering during welding, and improving the quality and reliability of welding.

[0029] like Figure 1-3As shown, an mounting ring groove 10 is provided at the top of the inner rod 2, and the main body 1 of the pressure foot device is installed and fixed through the mounting ring groove 10.

[0030] Optionally, the mounting groove 10 provides a standardized and simplified installation method for the main body 1 of the presser foot device. In actual operation, workers can quickly embed the appropriate mounting components into the mounting groove 10. Compared with some complex installation structures, this greatly saves installation time and labor costs, and improves the installation efficiency of the equipment. The mounting groove 10 has a specific shape and size, which can accurately define the installation position and angle of the main body 1 of the presser foot device. During the installation process, as long as the mounting components and the mounting groove 10 are correctly matched, the main body 1 of the presser foot device can be accurately installed in the predetermined position, ensuring the accuracy of the entire device installation and facilitating the accurate subsequent welding work. The installation and fixing through the mounting groove 10 can provide a reliable mechanical connection. The tight fit between the mounting components and the groove can effectively resist the action of various external forces, such as vibration and impact, during equipment operation, ensuring that the main body 1 of the presser foot device is always firmly installed on the equipment without loosening or displacement, thus ensuring the stability and reliability of the device during operation and improving the welding quality.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A presser foot device for improving the cleanliness of battery cap welding, comprising a presser foot device body (1). An inner rod (2) is provided inside the main body (1) of the presser foot device. An air inlet (4) is provided in the middle of the inner rod (2). A cavity (5) is provided at the bottom of the air inlet (4). Its features are: The outer sleeve (3) is provided on the outer side of the main body (1) of the presser foot device, and the battery positioning sleeve (14) is provided at the bottom of the outer sleeve (3).

2. The presser foot device for improving the cleanliness of battery cap welding according to claim 1, characterized in that: A groove (9) is provided at the middle position of the outer side of the inner rod (2), and a slider (12) is provided at the inner side of the outer sleeve (3). The outer sleeve (3) is slidably connected to the inner rod (2) through the slider (12) and the groove (9).

3. The presser foot device for improving the cleanliness of battery cap welding according to claim 2, characterized in that: The slider (12) is provided with a first buffer spring (11) and a second buffer spring (13) at the upper and lower sides respectively.

4. The presser foot device for improving the cleanliness of battery cap welding according to claim 1, characterized in that: A cap positioning platform (6) is provided inside the cavity (5), and an air guide groove (7) is provided at the edge of the cap positioning platform (6). The diameter of the cap positioning platform (6) is 11 mm.

5. The presser foot device for improving the cleanliness of battery cap welding according to claim 4, characterized in that: A nitrogen vent (8) is provided at the bottom of the inner rod (2), and the height of the nitrogen vent (8) is 0.3 mm.

6. The presser foot device for improving the cleanliness of battery cap welding according to claim 1, characterized in that: An installation ring groove (10) is provided at the top of the inner rod (2), and the main body (1) of the presser foot device is installed and fixed through the installation ring groove (10).

Images