Cover plate welding cooling mechanism
By designing the cover plate welding cooling mechanism, cold water cooling is used to cool down using the liquid-cooled pressed material plate and the waterway system in the feeding pallet, the problem of excessive temperature during the cover plate laser welding is solved, and the product pass rate and production efficiency are significantly improved.
Patent Information
- Application Number
- CN202422116210.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the assembly process of aluminum shell lithium battery, excessive temperature during the laser welding of cover plates leads to cracks in workpieces, melting of plastic parts and damage to seals, resulting in a large number of scrapped products, affecting product qualification rate and production efficiency.
A cover plate welding cooling mechanism is designed, and a plate waterway and pallet waterway are set up in the liquid-cooled press plate and the loading pallet, and the cooling is reduced with cold water to ensure that the workpieces continue to cool down during the welding process and avoid high-temperature damage.
It effectively reduces the temperature of the welded cover plate, protects the workpiece from high temperature damage, greatly improves the product qualification rate, and reduces production costs.
Smart Images
Figure CN223012196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery production, in particular to a cover plate welding and cooling mechanism. Background Technique
[0002] With the rapid development of the lithium-ion battery industry, the requirements for the automation degree, stability, consistency, etc. of the production equipment in the lithium battery industry are getting higher and higher, so as to fully ensure the performance of lithium-ion batteries in terms of safety, stability, etc.
[0003] In the assembly process of aluminum shell lithium batteries, the cover plate workpiece needs to be firmly connected to the battery core through laser welding. During the laser welding process, the instantaneous heat conduction temperature of the workpiece is above 120 °C. The rapid temperature rise during the welding process causes cracks in the workpiece, melting of plastic parts, damage to the seal, and a large number of scrapped products, increasing the production cost and seriously affecting the product qualification rate and production efficiency. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a cover plate welding and cooling mechanism, which is used to solve the difficult problems of process equipment such as cracks in workpieces, melting of plastic parts, and damage to seals caused by too high temperature during the laser welding of the cover plate of aluminum shell batteries, effectively improving the product qualification rate and production efficiency, and can effectively solve the problems in the background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a cover plate welding and cooling mechanism, including a support bottom tray, the support bottom tray is welded on the workbench, a pressing cylinder is fixed at the lower end of the support bottom tray, the telescopic end of the pressing cylinder is connected to the cylinder support frame, the support rods at both ends of the cylinder support frame pass through the support bottom tray and are connected to the liquid-cooled pressing plate, a movable loading tray is arranged on the upper surface of the support bottom tray, the loading tray is located below the liquid-cooled pressing plate, laser through holes are symmetrically arranged on the liquid-cooled pressing plate, two pressing plate water channels are arranged inside the liquid-cooled pressing plate, and the two pressing plate water channels are symmetrically arranged on both sides of the laser through holes, and a tray water channel is arranged inside the loading tray.
[0006] As a preferred technical scheme of the utility model, two groups of workpiece limiting grooves for fixing workpieces are arranged on the upper surface of the loading tray, and two tray water channels are arranged on both sides of each group of workpiece limiting grooves.
[0007] As a preferred technical scheme of the utility model, water channel connectors are arranged at both ends of the tray water channel and the pressing plate water channel respectively for connecting external waterways.
[0008] As a preferred technical scheme of the utility model, a linear guide rail is arranged on the upper surface of the support bottom tray, and the lower end of the loading tray is slidably connected to the linear guide rail.
[0009] As a preferred technical solution of the present utility model, light-shielding plates are symmetrically arranged on both sides of the liquid-cooled pressure plate. The lower end of the light-shielding plate is fixed on the upper surface of the support base. A through groove is arranged at the lower end of the light-shielding plate, and the loading tray can pass through the through groove.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The cover plate welding cooling mechanism of the present utility model is reasonably designed and ingeniously conceived. By respectively arranging a pressure plate water channel and a tray water channel in the liquid-cooled pressure plate and the loading tray, and cooling with continuously flowing cold water, the cover plate welding workpiece is continuously cooled during the laser welding process, ensuring that the temperature after welding and cooling is 60 °, protecting the cover plate welding workpiece from being damaged by high temperature, greatly improving the product qualification rate, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic structural diagram of the present utility model;
[0012] Figure 2 is Figure 1 a right view of removing the light-shielding plate in
[0013] Figure 3 a schematic structural diagram of the loading tray;
[0014] Figure 4 is a schematic structural diagram of the liquid-cooled pressure plate.
[0015] In the figure: 1 support base, 2 loading tray, 3 tray water channel, 4 liquid-cooled pressure plate, 5 pressure plate water channel, 6 workpiece limit groove, 7 laser through hole, 8 light-shielding plate, 9 linear guide rail, 10 pressing cylinder, 11 water channel joint, 12 cylinder support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments (for the convenience of description and understanding, the above is described with the upper side of Figure 2 as the upper side). Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0017] Please refer to Figures 1-4, the present utility model provides a technical solution: a cover plate welding cooling mechanism, including a supporting bottom bracket 1, which is welded to the workbench. A pressing cylinder 10 is fixed at the lower end of the supporting bottom bracket 1. The upper end of the pressing cylinder 10 is fixed to the lower surface of the supporting bottom bracket 1 by bolts. The telescopic end of the pressing cylinder 10 is connected to a cylinder support frame 12. The support rods at both ends of the cylinder support frame 12 pass through the supporting bottom bracket 1 and are connected to a liquid-cooled pressing plate 4. By controlling the lifting of the liquid-cooled pressing plate 4 through the telescopic movement of the pressing cylinder 10, the workpiece can be pressed and released. The pressing cylinder 10 controls the cylinder expansion and contraction through a pneumatic valve, and outputs a pressure of 500N to lower the liquid-cooled pressing plate 4, pressing the cover plate welding workpiece, making the welding workpieces have zero gap, ensuring no defective problems such as false soldering, weld seams, and warping after welding;
[0018] A movable loading tray 2 is arranged on the upper surface of the supporting bottom bracket 1. The loading tray 2 is located below the liquid-cooled pressing plate 4. Two laser through holes 7 with a width of 300mm and a length of 400mm are symmetrically arranged on the liquid-cooled pressing plate 4. Two pressing plate water channels 5 are opened inside the liquid-cooled pressing plate 4. The two pressing plate water channels 5 are symmetrically arranged on both sides of the laser through holes 7. A tray water channel 3 is opened inside the loading tray 2. Water channel connectors 11 are arranged at both ends of the pressing plate water channel 5 and the tray water channel 3, respectively, for connecting the cold water inlet pipe and the cold water outlet pipe. Through water circulation, the cover plate welding workpiece is continuously cooled during the laser welding process, avoiding problems such as workpiece cracks, plastic part melting, and seal damage caused by excessive temperature.
[0019] Furthermore, in order to improve the welding efficiency, two groups of workpiece limiting grooves 6 for fixing workpieces are arranged on the upper surface of the loading tray 2, namely A station and B station, for fixing the cover plate welding workpiece. Two tray water channels 3 are arranged on both sides of each group of workpiece limiting grooves 6. During the welding process at station A, the loading operation can be carried out at station B.
[0020] Furthermore, in order to facilitate the worker to move the loading tray 2, a linear guide rail 9 is arranged on the upper surface of the supporting bottom bracket 1. The lower end of the loading tray 2 is slidably connected to the linear guide rail 9.
[0021] Furthermore, in order to prevent the light generated during the laser welding process from affecting and then irritating the worker's eyes, light shielding plates 8 are symmetrically arranged on both sides of the liquid-cooled pressing plate 4. The lower end of the light shielding plate 8 is fixed on the upper surface of the supporting bottom bracket 1. A through groove is arranged at the lower end of the light shielding plate 8, and the loading tray 2 can pass through the through groove.
[0022] During use: the pressing cylinder 10 contracts, and the liquid-cooled pressing plate 4 is lifted. At this time, the A station of the loading tray 2 is moved to directly below the liquid-cooled pressing plate 4. The switching cylinder reversing valve is switched to make the pressing cylinder extend, and the liquid-cooled pressing plate 4 presses down to lock the cover plate welding workpiece. The laser passes through the laser through-hole 7 on the liquid-cooled pressing plate 4 to weld the cover plate welding workpiece. During the welding process, cold water is continuously introduced into the loading tray 2 and the liquid-cooled pressing plate 4 for cooling. At the same time, loading and unloading operations are performed at the B station of the loading tray 2. After the welding at the A station is completed, the liquid-cooled pressing plate 4 is lifted, and the loading tray 2 is moved so that the B station is moved to directly below the liquid-cooled pressing plate 4 for welding operation.
[0023] The utility model can effectively solve the difficult problems of process equipment such as workpiece cracks, plastic part melting, and seal damage caused by excessive temperature during the laser welding of the aluminum shell battery cover plate, effectively improve the product qualification rate and production efficiency, and greatly improve the use convenience.
[0024] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A cover plate welding cooling mechanism, comprising a support base (1), wherein the support base (1) is welded on a workbench, and is characterized in that: A clamping cylinder (10) is fixed to the lower end of the support base (1), and the telescopic end of the clamping cylinder (10) is connected to the cylinder support frame (12). The support rods at both ends of the cylinder support frame (12) pass through the support base (1) and are connected to the liquid-cooled pressing plate (4). A movable loading tray (2) is provided on the upper surface of the support base (1). The loading tray (2) is located below the liquid-cooled pressing plate (4). Laser through holes (7) are symmetrically provided on the liquid-cooled pressing plate (4). Two pressing plate water channels (5) are provided inside the liquid-cooled pressing plate (4). The two pressing plate water channels (5) are symmetrically provided on both sides of the laser through hole (7). A tray water channel (3) is provided inside the loading tray (2).
2. A cover plate welding cooling mechanism according to claim 1, characterized in that: The upper surface of the loading tray (2) is provided with two groups of workpiece limiting grooves (6) for fixing the workpieces, and two tray water channels (3) are provided on both sides of each group of workpiece limiting grooves (6).
3. A cover plate welding cooling mechanism according to claim 1, characterized in that: Both ends of the tray water channel (3) and the pressure plate water channel (5) are provided with water channel joints (11), which are respectively used to connect to external water channels.
4. A cover plate welding cooling mechanism according to claim 1, characterized in that: The upper surface of the supporting base (1) is provided with a linear guide rail (9), and the lower end of the loading tray (2) is slidably connected to the linear guide rail (9).
5. The cover plate welding cooling mechanism according to claim 1, characterized in that: Light shielding plates (8) are symmetrically arranged on both sides of the liquid-cooled pressing plate (4), the lower ends of the light shielding plates (8) are fixed to the upper surface of the supporting base (1), and the lower ends of the light shielding plates (8) are provided with through grooves, and the loading tray (2) can pass through the through grooves.