Battery box upper cover plate foaming sealant coating positioning device
By working together with the positioning base, limiting components and multi-axis moving components, the problems of uneven adhesive application and insufficient sealing of the battery box cover are solved, realizing the automation and high-quality adhesive application of the battery box cover.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING PAKTAN SEALING SYST CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-09
AI Technical Summary
The existing battery box cover has problems such as uneven glue application, uneven stress on the cover, and insufficient sealing due to manual speed control.
The system employs a positioning base and limiting components for precise positioning and clamping. Combined with Z-axis, X-axis, and Y-axis moving components and an air blowing component, it enables precise movement of the glue gun and the removal of impurities, ensuring uniform coating and sealing of the glue strip.
It has achieved automation and intelligence in the application of adhesive to the battery box cover, ensuring the uniformity and sealing of the adhesive strip, preventing cover misalignment or damage, and improving the quality and efficiency of adhesive application.
Smart Images

Figure CN224332620U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a battery box cover foam sealant application and positioning device. Background Technology
[0002] Currently, both domestic and international automakers are investing heavily in new energy electric vehicles, and market expectations for their performance are rising, especially regarding range. To enable vehicles to travel further, the capacity, reliability, and stability of the power batteries need to increase. The battery box is the carrier of the battery; besides improving the performance of the battery itself, the battery box also requires higher performance. During the battery box manufacturing process, adhesive strips are often used on the top cover for sealing and filling between the battery box and the box body. These adhesive strips can be made from two-component chemically reacted foamed elastomers, vulcanized foams, EPDM foamed molded bodies, or one-component free-form foams. The adhesive strips on the battery box top cover not only serve a sealing function but also a filling function.
[0003] For example, the authorized announcement number CN214153102U describes a special adhesive applicator for the aforementioned battery box. The adhesive is applied by a glue gun to form a narrow but thick adhesive strip. After the cover plate is pressed onto the box body, the adhesive strip naturally expands, becoming wider and thinner. Then, the bolt structure is screwed in through the assembly hole to complete the assembly. The sealant then cures.
[0004] However, the speed of applying the adhesive still needs to be controlled manually, which leads to uneven application. The use of elastic support columns to support the weight of the cover plate results in uneven stress on the cover plate, and the elastic support columns do not provide overall restraint for the battery box cover. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:
[0006] A battery box cover foam sealant application and positioning device includes a positioning base with an insertion groove in the middle. A movable adhesive application moving device is fixedly installed on the upper surface of the positioning base. Several sets of limiting components are symmetrically fixedly installed on the inner wall of the insertion groove. Each limiting component includes a fixed seat, a telescopic spring, a rubber disc, and a support bolt. The fixed seat bolt is installed inside the insertion groove. One end of the telescopic spring is fixedly installed in the middle of the fixed seat, and the rubber disc is fixedly installed in the other end of the telescopic spring. The support bolt is threaded in the middle of the rubber disc. A cover plate is placed inside the insertion groove. Two sets of limiting components are clamped and installed on the outer walls of the cover plate on both sides. The adhesive application moving device includes a Z-axis moving component. A sliding seat is fixedly installed on one side of the Z-axis moving component. An L-shaped adhesive gun mounting plate is fixedly installed on one side of the sliding seat. An adhesive gun is inserted into the middle of the L-shaped adhesive gun mounting plate, and an air blowing component is sleeved in the middle of the adhesive gun.
[0007] As an improvement to the above technical solution, the adhesive application moving device further includes an X-axis moving component and a Y-axis moving component. The X-axis moving component is longitudinally installed on both sides of the upper surface of the positioning base and is located in the length direction of the cover plate. The X-axis moving component includes a track, and the track is bolted to the upper surface of the positioning base. The Y-axis moving component is slidably installed laterally on the upper part of the X-axis moving component and the track and is located in the width direction of the cover plate.
[0008] As an improvement to the above technical solution, the air blowing assembly includes an H-shaped mounting base, an inclined plate, and a pressurized air blowing pipe. The middle part of the H-shaped mounting base is inserted into the bottom of the glue gun. The inclined plate is bolted on both sides of the H-shaped mounting base. The pressurized air blowing pipe is vertically inserted into the middle of the inclined plate. The air blowing ends of both sets of pressurized air blowing pipes correspond to the bottom end of the glue gun.
[0009] As an improvement to the above technical solution, the glue application moving device drives the glue application gun and the air blowing assembly to slide above the cover plate.
[0010] As an improvement to the above technical solution, the length of the support bolt is half the normal extension length of the telescopic spring.
[0011] The beneficial effects of this utility model are:
[0012] 1. This utility model uses a positioning base as the support platform for the entire device. The insertion slot in the middle is used to place the battery box cover plate. The inner wall of the insertion slot is symmetrically fixed with limiting components. Multiple sets of limiting components achieve precise positioning and clamping of the cover plate, preventing the cover plate from shifting during the glue application process. The fixing base is fixed to the inner wall of the insertion slot with bolts, providing a mounting base for the telescopic spring. One end of the telescopic spring is fixed to the middle of the fixing base, and the other end is connected to a rubber disc. The elasticity of the spring achieves self-adaptive clamping of the cover plate. The rubber disc is fixed to the end of the telescopic spring and directly contacts the cover plate, playing a buffering and anti-slip role, preventing damage to the cover plate during clamping. The support bolt is threaded in the middle of the rubber disc. By rotating the support bolt, the contact pressure between the rubber disc and the cover plate can be adjusted to ensure stable clamping without damaging the cover plate. When the cover plate is placed in the insertion slot, the limiting components on both sides clamp the cover plate in the center position through the elastic force of the telescopic spring, so that the cover plate is restricted as a whole. The buffering effect of the rubber disc can prevent the cover plate from shifting or being scratched.
[0013] 2. This utility model uses a Z-axis moving component as the vertical moving mechanism of the glue gun. A sliding seat enables precise movement of the glue gun in the Z-axis direction. The sliding seat is fixed to one side of the Z-axis moving component, providing an installation platform for the L-shaped glue gun mounting plate. The glue gun is inserted and installed in the middle of the L-shaped mounting plate. The L-shaped design allows for positioning and adjustment of the glue gun in the X and Z axes. The glue gun is used to apply foamed sealant to the surface of the cover plate. By precisely controlling the glue application path and speed, the uniformity and sealing of the sealant strip are ensured. An air blowing component is fitted in the middle of the glue gun to blow away dust or impurities from the cover plate surface during the glue application process, improving the glue application quality. Through the symmetrical design of multiple limiting components, precise positioning and clamping of the cover plate within the slot are achieved, preventing cover plate displacement during the glue application process. Attached Figure Description
[0014] Figure 1 This is a structural diagram of the present invention;
[0015] Figure 2 This is a structural diagram of the adhesive application moving device of this utility model;
[0016] Figure 3 This is a structural diagram of the air blowing assembly of this utility model;
[0017] Figure 4 This is a structural diagram of the components of this utility model;
[0018] Figure 5 This is a structural diagram of the present utility model.
[0019] Reference numerals: 1. Positioning base; 11. Insertion slot; 2. Glue application moving device; 21. X-axis moving assembly; 211. Track; 22. Y-axis moving assembly; 23. Z-axis moving assembly; 231. Sliding seat; 232. L-shaped glue gun mounting plate; 3. Glue gun; 4. Limiting assembly; 41. Fixed seat; 42. Telescopic spring; 43. Rubber disc; 44. Support bolt; 5. Cover plate; 6. Air blowing assembly; 61. H-shaped mounting seat; 62. Inclined plate; 63. Pressurized air blowing pipe. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.
[0021] Please see Figure 1-5 This utility model provides a technical solution:
[0022] A battery box cover foam sealant application and positioning device includes a positioning base 1, with an insertion groove 11 in the middle of the positioning base 1. A movable adhesive application device 2 is fixedly installed on the upper surface of the positioning base 1. Several sets of limiting components 4 are symmetrically fixedly installed on the inner wall of the insertion groove 11. The limiting components 4 include a fixing seat 41, a telescopic spring 42, a rubber disc 43, and a support bolt 44. The fixing seat 41 is bolted to the inside of the insertion groove 11, one end of the telescopic spring 42 is fixedly installed in the middle of the fixing seat 41, and the rubber disc 43 is fixedly installed in the middle of the fixing seat 41. The support bolt 44 is threaded onto the middle of the rubber disc 43 and fixedly installed on the other end of the telescopic spring 42. The cover plate 5 is placed inside the groove 11. Two sets of limiting components 4 are clamped and installed on the outer walls of the two sides of the cover plate 5. The glue application moving device 2 includes a Z-axis moving component 23. A sliding seat 231 is fixedly installed on one side of the Z-axis moving component 23. An L-shaped glue application gun mounting plate 232 is fixedly installed on one side of the sliding seat 231. A glue application gun 3 is inserted into the middle of the L-shaped glue application gun mounting plate 232. An air blowing component 6 is sleeved in the middle of the glue application gun 3.
[0023] In this embodiment, the positioning base 1 serves as the support platform for the entire device. A slot 11 in its center is used to place the battery box cover 5. The inner wall of the slot 11 is symmetrically fitted with limiting components 4. Multiple limiting components 4 ensure precise positioning and clamping of the cover 5, preventing it from shifting during adhesive application. A fixing base 41 is bolted to the inner wall of the slot 11, providing a mounting base for the telescopic spring 42. One end of the telescopic spring 42 is fixed to the middle of the fixing base 41, and the other end is connected to a rubber disc 43. The spring's elasticity enables adaptive clamping of the cover 5. The rubber disc 43 is fixed to the end of the telescopic spring 42, directly contacting the cover 5, providing cushioning and... To prevent slippage and damage to the cover plate 5 during clamping, the support bolt 44 is threaded in the middle of the rubber disc 43. Rotating the support bolt 44 adjusts the contact pressure between the rubber disc 43 and the cover plate 5, ensuring stable clamping without damaging the cover plate 5. When the cover plate 5 is placed into the insertion slot 11, the limiting components 4 on both sides clamp the cover plate 5 in the center position through the elastic force of the telescopic spring 42. The buffering effect of the rubber disc 43 prevents the cover plate 5 from shifting or being scratched. The Z-axis moving component 23 serves as the vertical moving mechanism of the glue gun 3. The sliding seat 231 enables precise movement of the glue gun 3 in the Z-axis direction. The sliding seat 231 is fixed to the Z-axis moving component 23. On one side, an installation platform is provided for the L-shaped glue gun mounting plate 232. The glue gun 3 is inserted and installed in the middle of the L-shaped glue gun mounting plate 232. The L-shaped design enables the positioning and adjustment of the glue gun 3 in the X and Z axis directions. The glue gun 3 is used to apply foamed sealant to the surface of the cover plate 5. By precisely controlling the glue application path and speed, the uniformity and sealing of the glue strip are ensured. The air blowing component 6 is sleeved in the middle of the glue gun 3 and is used to blow away dust or impurities on the surface of the cover plate 5 during the glue application process, thereby improving the glue application quality. Through the symmetrical design of multiple sets of limiting components 4, the cover plate 5 is accurately positioned and clamped in the slot 11, preventing the cover plate 5 from shifting during the glue application process. The telescopic spring... The combination design of 42 and rubber disc 43 ensures the stability of clamping and avoids damage to cover plate 5. The glue application moving device 2 achieves precise movement and positioning of glue gun 3 through the cooperation of Z-axis moving component 23 and L-shaped glue gun mounting plate 232, improving glue application efficiency and quality. The addition of air blowing component 6 further improves glue application quality and reduces sealing problems caused by impurities. The limiting component 4 can adjust the contact pressure between rubber disc 43 and cover plate 5 through support bolt 44 to adapt to the glue application needs of cover plates 5 of different sizes and shapes. Glue gun 3 is installed on L-shaped glue gun mounting plate 232 by plug-in connection, which is convenient for replacement and maintenance.
[0024] Specifically, the adhesive application moving device 2 also includes an X-axis moving component 21 and a Y-axis moving component 22. The X-axis moving component 21 is longitudinally installed on both sides of the upper surface of the positioning base 1 and is located in the length direction of the cover plate 5. The X-axis moving component 21 includes a track 211, which is bolted to the upper surface of the positioning base 1. The Y-axis moving component 22 is slidably installed on the upper part of the X-axis moving component 21 and the track 211 and is located in the width direction of the cover plate 5.
[0025] In this embodiment, the drive mechanisms for the X-axis moving component 21, the Y-axis moving component 22, and the Z-axis moving component 23 are all servo motors + ball screws, providing high-precision and high-rigidity linear motion. The sliding mechanism typically includes a slider and a guide rail for sliding in the direction. The X-axis moving component 21 is longitudinally mounted on both sides of the upper surface of the positioning base 1 and positioned along the length of the cover plate 5. It is responsible for the movement of the glue gun 3 along the length of the cover plate 5, ensuring that the glue strip can be continuously applied along the edge of the cover plate 5 or a predetermined path. The track 211 serves as the foundation for the X-axis moving component 21 and is bolted to the upper surface of the positioning base 1, providing sliding support for the Y-axis moving component 22. The Y-axis moving component 22 is used to drive the Y-axis moving component 22 to slide along the track 211. The machining accuracy and installation accuracy of the track 211 directly affect the movement accuracy of the glue gun 3 in the X-axis direction. It is necessary to ensure the straightness and parallelism of the track 211. Through the coordinated work of the X-axis and Y-axis moving components, and by the control system presetting the glue application path, the X-axis and Y-axis moving components work together according to the preset path to ensure that the glue gun 3 moves along the predetermined trajectory. The X-axis and Y-axis moving components 22 of the glue application moving device 2, through high-precision and high-stability design, realize the two-dimensional planar movement of the glue gun 3 on the surface of the battery box cover plate 5, which not only improves the glue application efficiency and quality, but also adapts to the glue application needs of cover plates 5 of different sizes and shapes.
[0026] Specifically, the air blowing assembly 6 includes an H-shaped mounting base 61, an inclined plate 62, and a pressurized air blowing pipe 63. The middle part of the H-shaped mounting base 61 is inserted into the bottom of the glue gun 3. The inclined plate 62 is bolted to both sides of the H-shaped mounting base 61. The pressurized air blowing pipe 63 is vertically inserted into the middle part of the inclined plate 62. The air blowing ends of the two sets of pressurized air blowing pipes 63 are corresponding to the bottom end of the glue gun 3.
[0027] In this embodiment, the H-shaped mounting base 61 serves as the basic support structure for the air blowing assembly 6, used to mount the entire air blowing assembly 6 at the bottom of the glue application gun 3. The H-shaped design provides a stable mounting platform, facilitating insertion and installation with the glue application gun 3. The inclined plate 62 is used to mount the pressurized air blowing pipe 63 and adjust the air blowing direction of the air blowing pipe. It is bolted to both sides of the H-shaped mounting base 61, which is both stable and facilitates adjustment of the angle of the inclined plate 62, thereby changing the air blowing direction of the air blowing pipe. The pressurized air blowing pipe 63 provides pressurized airflow to blow away dust or impurities from the surface of the cover plate 5 during the glue application process. To improve the quality of adhesive application, the air blowing tube is vertically inserted and installed in the middle of the inclined plate 62. This installation method ensures the stability of the air blowing tube and facilitates its alignment with the bottom end of the glue gun 3, enabling precise air blowing. The air blowing ends of both sets of pressurized air blowing tubes 63 correspond to the bottom end of the glue gun 3. During the adhesive application process, the air blowing tube can directly blow pressurized airflow towards the adhesive application area, effectively removing dust or impurities from the surface of the cover plate 5. The air blowing component 6 works in conjunction with the glue gun 3. While the glue gun 3 applies foamed sealant, the air blowing component 6 cleans the adhesive application area with pressurized airflow, ensuring the quality of adhesive application.
[0028] Specifically, the glue application moving device 2 drives the glue application gun 3 and the air blowing assembly 6 to slide above the cover plate 5.
[0029] In this embodiment, before the glue gun 3 moves to the target position, the air blowing component 6 starts pressurized airflow to remove dust and particles from the surface of the cover plate 5. The glue gun 3 and the air blowing component 6 move synchronously along a preset path. The air blowing component 6 continuously maintains the airflow to prevent impurities from entering during the glue application process. After the glue application is completed, the air blowing component 6 can perform secondary cleaning to ensure that there are no residues on the glue strip surface. The glue application moving device 2 realizes the automation and intelligence of the sealing process of the battery box cover plate 5 through high-precision multi-axis linkage and coordinated control of air blowing and glue application.
[0030] Specifically, the length of the support bolt 44 is half the normal extension length of the telescopic spring 42.
[0031] In this embodiment, the length of the support bolt 44 is designed to be half the normal extension length of the telescopic spring 42, which limits the clamping stability and adjustment flexibility of the component 4. The length design of the support bolt 44 can prevent the rubber disc 43 from tilting due to excessive compression during clamping, and ensure that the force on both sides of the cover plate 5 is uniform.
[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A device for applying and positioning foam sealant to a battery box cover, characterized in that: The device includes a positioning base (1), with an insertion groove (11) in the middle. A movable adhesive applicator (2) is fixedly installed on the upper surface of the positioning base (1). Several sets of limiting components (4) are symmetrically fixedly installed on the inner wall of the insertion groove (11). Each limiting component (4) includes a fixing seat (41), a telescopic spring (42), a rubber disc (43), and a support bolt (44). The fixing seat (41) is bolted inside the insertion groove (11). One end of the telescopic spring (42) is fixedly installed in the middle of the fixing seat (41). The rubber disc (43) is fixedly installed on the telescopic spring (42). At the other end, the support bolt (44) is threadedly installed in the middle of the rubber disc (43), and a cover plate (5) is placed inside the insertion groove (11). Two sets of limiting components (4) are clamped and installed on the outer walls of the two sides of the cover plate (5). The glue application moving device (2) includes a Z-axis moving component (23). A sliding seat (231) is fixedly installed on one side of the Z-axis moving component (23). An L-shaped glue application gun mounting plate (232) is fixedly installed on one side of the sliding seat (231). A glue application gun (3) is inserted into the middle of the L-shaped glue application gun mounting plate (232). An air blowing component (6) is sleeved in the middle of the glue application gun (3).
2. The battery box cover foam sealant application and positioning device according to claim 1, characterized in that: The adhesive application moving device (2) further includes an X-axis moving component (21) and a Y-axis moving component (22). The X-axis moving component (21) is longitudinally installed on both sides of the upper surface of the positioning base (1) and is located in the length direction of the cover plate (5). The X-axis moving component (21) includes a track (211), which is bolted to the upper surface of the positioning base (1). The Y-axis moving component (22) is slidably installed on the upper part of the X-axis moving component (21) and the track (211) and is located in the width direction of the cover plate (5).
3. The battery box cover foam sealant application and positioning device according to claim 1, characterized in that: The air blowing assembly (6) includes an H-shaped mounting base (61), an inclined plate (62), and a pressurized air blowing pipe (63). The middle part of the H-shaped mounting base (61) is inserted into the bottom of the glue gun (3). The inclined plate (62) is bolted to both sides of the H-shaped mounting base (61). The pressurized air blowing pipe (63) is vertically inserted into the middle part of the inclined plate (62). The air blowing ends of the two sets of pressurized air blowing pipes (63) are corresponding to the bottom end of the glue gun (3).
4. The battery box cover foam sealant application and positioning device according to claim 1, characterized in that: The glue-applying moving device (2) drives the glue-applying gun (3) and the air-blowing assembly (6) to slide above the cover plate (5).
5. The battery box cover foam sealant application and positioning device according to claim 1, characterized in that: The length of the support bolt (44) is half the normal extension length of the telescopic spring (42).