Shell cover welding tool

Abstract

The utility model provides a kind of shell cover welding tool. The shell cover welding tool includes bottom plate, workbench, connecting assembly and clamping assembly, the above-mentioned bottom plate and workbench are flat plate, the workbench is located on the upper portion of bottom plate, the above-mentioned connecting assembly is located between bottom plate and workbench and connecting assembly can make workbench and bottom plate detachably connected, the workbench has through insertion hole, the clamping assembly is fixedly connected on workbench and clamping assembly is adjacent to insertion hole. The shell cover welding tool has high stability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and more specifically to a welding fixture for a shell cover. Background Technology

[0002] In the manufacturing process of square batteries, the quality of the welding (also known as peripheral welding) between the casing and the cover plate plays a decisive role in various performance indicators of the finished battery.

[0003] Currently, square batteries often have a gap between the square casing and the battery cover because the tooling cannot effectively clamp the battery.

[0004] During laser welding, the laser beam can penetrate into the battery through the gap, burning the cell electrodes or separator. This phenomenon is defined as "light leakage," which poses a significant safety hazard to the cell. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by providing a shell cover welding fixture that is highly applicable and improves operational stability.

[0006] To achieve the above objectives, this utility model can be implemented through the following technical solutions:

[0007] A casing welding fixture, characterized in that it includes a base plate, a worktable, a connecting component, and a clamping component. The base plate and the worktable are both flat. The worktable is located on the upper part of the base plate. The connecting component is located between the base plate and the worktable and enables the worktable to be detachably connected to the base plate. The worktable has a through-hole. The clamping component is fixedly connected to the worktable and is adjacent to the through-hole.

[0008] In the aforementioned shell cover welding fixture, the connecting assembly includes fastener one, fastener two, and connecting cylinder. Fastener one is vertically fixed to the upper part of the base plate, fastener two is vertically fixed to the lower part of the workbench, the lower end of the connecting cylinder is sleeved on fastener one, and the upper end of the connecting cylinder is sleeved on fastener two.

[0009] In the aforementioned shell cover welding fixture, fastener one, fastener two, and connecting cylinder form a connecting unit. The number of connecting units is several, and the several connecting units are distributed between the edge of the base plate and the edge of the worktable.

[0010] In the aforementioned shell cover welding fixture, the base plate has a gasket, and each fastener passes through the edge of the gasket.

[0011] In the aforementioned shell cover welding fixture, the insertion hole is rectangular, and a long baffle and a short baffle are fixedly connected to the worktable. The long baffle is adjacent to the long edge of the insertion hole, and the short baffle is adjacent to the short edge of the insertion hole.

[0012] In the aforementioned shell cover welding fixture, the clamping assembly includes a first drive component, a long clamping plate, a second drive component, and a short clamping plate. The first drive component is fixedly connected to the worktable and is also fixedly connected to the long clamping plate. The long clamping plate and the long baffle face each other and are parallel to each other. The second drive component is fixedly connected to the worktable and is also fixedly connected to the short clamping plate. The short clamping plate and the short baffle face each other and are parallel to each other.

[0013] In the aforementioned shell cover welding fixture, the upper part of the long baffle has a first abutting ridge protruding to its side, the upper part of the long clamping plate has a second abutting ridge protruding to its side, the upper part of the short baffle has a third abutting ridge protruding to its side, and the upper part of the short clamping plate has a fourth abutting ridge protruding to its side. The first abutting ridge, the second abutting ridge, the third abutting ridge, and the fourth abutting ridge are all on the same plane and are arranged facing each other.

[0014] In the aforementioned shell cover welding fixture, the end of the long baffle is vertically fixed to the end of the short baffle.

[0015] In the aforementioned shell and cover welding fixture, the length of the long baffle is less than the length of the insertion hole, the length of the short baffle is greater than the width of the insertion hole, the length of the long clamp is greater than the length of the insertion hole, and the length of the long clamp is equal to the sum of the length of the long baffle and the width of the short baffle, and the length of the short clamp is greater than the width of the insertion hole.

[0016] In the aforementioned shell cover welding fixture, both drive component one and drive component two are cylinders.

[0017] Compared with existing technologies, this cover welding fixture can press against each end face of the outer shell in real time during welding operations, so that the inner end face of the outer shell and each end face of the cover plate are tightly pressed together, avoiding gaps and thus avoiding light leakage during welding. Its stability is relatively high.

[0018] Furthermore, when working with different types of square batteries, simply change the worktable to match it. Therefore, it has high applicability and practical value. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the welding fixture for the shell cover.

[0020] Figure 2 This is an exploded structural diagram of the welding fixture for the shell cover.

[0021] Figure 3 This is a top view schematic diagram of the welding fixture for the shell cover.

[0022] Figure 4This is a schematic diagram of the three-dimensional structure of the long baffle.

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the short baffle.

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the long plywood.

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the short splint.

[0026] In the picture:

[0027] 1. Base plate; 2. Workbench; 21. Insertion hole; 3. Fastener one; 4. Fastener two; 5. Connecting cylinder; 6. Gasket; 7. Long baffle; 71. First abutment ridge; 8. Short baffle; 81. Third abutment ridge; 9. Drive component one; 10. Long clamping plate; 101. Second abutment ridge; 11. Drive component two; 12. Short clamping plate; 121. Fourth abutment ridge. Detailed Implementation

[0028] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0029] like Figure 1-7 As shown, the welding fixture for this shell cover includes a base plate 1, a worktable 2, a connecting assembly, and a clamping assembly. The base plate 1 and the worktable 2 are both flat. The worktable 2 is located on the upper part of the base plate 1. The connecting assembly is located between the base plate 1 and the worktable 2 and allows the worktable 2 to be detachably connected to the base plate 1. The worktable 2 has a through-hole 21. The clamping assembly is fixed to the worktable 2 and is adjacent to the through-hole 21.

[0030] The connecting components allow for easy and detachable connection between the worktable 2 and the base plate 1.

[0031] The purpose of this is to adapt to the corresponding machining parts. When the part model changes, its external dimensions also change. Therefore, by replacing the worktable 2 with one that is compatible with the part, the applicability of the entire shell cover welding fixture can be effectively improved.

[0032] This welding fixture is used for welding the casing and end caps of square batteries.

[0033] Specifically, the housing has an internal cavity and an open end, with an end cap fitted into the port of the housing. The housing is fitted into the insertion hole 21 of the worktable 2.

[0034] After the action, the clamping assembly abuts against the connection between the housing and the end cap, thereby establishing a pre-position between the housing and the end cap through this tooling. The pre-positioned housing and end cap can then be stably welded.

[0035] The connecting assembly includes fastener 3, fastener 4, and connecting cylinder 5. Fastener 3 is vertically fixed to the upper part of the base plate 1, fastener 4 is vertically fixed to the lower part of the workbench 2, and the lower end of the connecting cylinder 5 is fitted onto fastener 3, while the upper end of the connecting cylinder 5 is fitted onto fastener 4.

[0036] After removing fastener 24, the worktable 2 can be stably separated from the base plate 1.

[0037] Conversely, when fastener 3 and fastener 4 are connected to the two ends of the connecting cylinder 5 respectively, the workbench 2 and the base plate 1 are stably connected together.

[0038] The fastener 3, fastener 4 and connecting cylinder 5 form a connecting unit. There are several connecting units, which are distributed between the edge of the base plate 1 and the edge of the worktable 2.

[0039] Multiple connection units can effectively improve the connection stability between the worktable 2 and the base plate 1.

[0040] The base plate 1 has a gasket 6, and each fastener 3 is inserted through the edge of the gasket 6.

[0041] The gasket 6 is made of a flexible material; in this embodiment, the gasket 6 is a rubber sheet. The lower end of the housing located inside the insertion hole 21 rests against the gasket 6. The gasket 6 prevents the housing from rigidly contacting the base plate 1.

[0042] The socket 21 is rectangular. A long baffle 7 and a short baffle 8 are also fixedly connected to the workbench 2. The long baffle 7 is adjacent to the long edge of the socket 21, and the short baffle 8 is adjacent to the short edge of the socket 21.

[0043] Since both the long baffle 7 and the short baffle 8 are adjacent to the edge of the socket 21, the housing located at the socket 21 can stably abut against the long baffle 7 and the short baffle 8.

[0044] The clamping assembly includes a first drive component 9, a long clamping plate 10, a second drive component 11, and a short clamping plate 12. The first drive component 9 is fixedly connected to the worktable 2 and is also fixedly connected to the long clamping plate 10. The long clamping plate 10 is directly opposite to the long baffle 7 and the two are parallel. The second drive component 11 is fixedly connected to the worktable 2 and is also fixedly connected to the short clamping plate 12. The short clamping plate 12 is directly opposite to the short baffle 8 and the two are parallel.

[0045] After the driving component 9 moves the long clamping plate 10 toward the long baffle 7, the two sides of the shell along the length direction are positioned between the long baffle 7 and the long clamping plate 10.

[0046] After the driving component 2 11 moves the short clamping plate 12 toward the short baffle 8, the two sides of the housing width direction are positioned between the short baffle 8 and the short clamping plate 12.

[0047] The long baffle 7 has a first abutting ridge 71 protruding to its side on its upper part, the long clamping plate 10 has a second abutting ridge 101 protruding to its side on its upper part, the short baffle 8 has a third abutting ridge 81 protruding to its side on its upper part, and the short clamping plate 12 has a fourth abutting ridge 121 protruding to its side on its upper part. The first abutting ridge 71, the second abutting ridge 101, the third abutting ridge 81 and the fourth abutting ridge 121 are all on the same plane and are arranged facing each other.

[0048] Since the end cap is located only at the port of the housing, the first abutment ridge 71, the second abutment ridge 101, the third abutment ridge 81, and the fourth abutment ridge 121 are at the same horizontal position as the end cap, thereby effectively ensuring that the end cap is stably pre-positioned at the port of the housing.

[0049] The long baffle 7 is vertically fixed to the end of the short baffle 8.

[0050] This structure allows the long baffle 7 and the short baffle 8 to be stably pressed against the outside of the positioned housing.

[0051] The length of the long baffle 7 is less than the length of the socket 21, the length of the short baffle 8 is greater than the width of the socket 21, the length of the long clamp 10 is greater than the length of the socket 21, and the length of the long clamp 10 is equal to the sum of the length of the long baffle 7 and the width of the short baffle 8, and the length of the short clamp 8 is greater than the width of the socket 21.

[0052] This structure allows the housing at socket 21 to be stably positioned.

[0053] Both drive component 9 and drive component 11 are cylinders.

[0054] The cylinder enables the drive component 9 and drive component 11 to respond quickly, effectively improving their operating efficiency.

[0055] This welding fixture can press against each end face of the outer shell in real time during welding operations, ensuring a tight fit between the inner end face of the outer shell and each end face of the cover plate, preventing gaps and thus avoiding light leakage during welding. It has high stability.

[0056] Furthermore, when working with different types of square batteries, simply change the worktable to match it. Therefore, it has high applicability and practical value.

[0057] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0058] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A welding fixture for a shell cover, characterized in that, The device includes a base plate, a worktable, a connecting assembly, and a clamping assembly. Both the base plate and the worktable are flat. The worktable is located on the upper part of the base plate. The connecting assembly is located between the base plate and the worktable and allows the worktable to be detachably connected to the base plate. The worktable has a through-hole. The clamping assembly is fixed to the worktable and is adjacent to the through-hole.

2. The shell cover welding fixture according to claim 1, characterized in that, The connecting assembly includes fastener one, fastener two, and connecting cylinder. Fastener one is vertically fixed to the upper part of the base plate, fastener two is vertically fixed to the lower part of the workbench, and the lower end of the connecting cylinder is fitted onto fastener one, while the upper end of the connecting cylinder is fitted onto fastener two.

3. The shell cover welding fixture according to claim 2, characterized in that, The fastener one, fastener two and connecting cylinder form a connecting unit, and there are several connecting units distributed between the edge of the base plate and the edge of the worktable.

4. The shell cover welding fixture according to claim 2, characterized in that, The base plate has a gasket, and each fastener passes through the edge of the gasket.

5. The shell cover welding fixture according to claim 1, 2, 3, or 4, characterized in that, The socket is rectangular, and a long baffle and a short baffle are fixedly connected to the worktable. The long baffle is adjacent to the long edge of the socket, and the short baffle is adjacent to the short edge of the socket.

6. The shell cover welding fixture according to claim 5, characterized in that, The clamping assembly includes a first drive component, a long clamping plate, a second drive component, and a short clamping plate. The first drive component is fixedly connected to the worktable and is also fixedly connected to the long clamping plate. The long clamping plate and the long baffle face each other and are parallel to each other. The second drive component is fixedly connected to the worktable and is also fixedly connected to the short clamping plate. The short clamping plate and the short baffle face each other and are parallel to each other.

7. The shell cover welding fixture according to claim 6, characterized in that, The upper part of the long baffle has a first abutting ridge protruding to its side, the upper part of the long clamping plate has a second abutting ridge protruding to its side, the upper part of the short baffle has a third abutting ridge protruding to its side, and the upper part of the short clamping plate has a fourth abutting ridge protruding to its side. The first abutting ridge, the second abutting ridge, the third abutting ridge and the fourth abutting ridge are all on the same plane and are arranged facing each other.

8. The shell cover welding fixture according to claim 5, characterized in that, The end of the long baffle is vertically fixed to the end of the short baffle.

9. The shell cover welding fixture according to claim 6, characterized in that, The length of the long baffle is less than the length of the socket, the length of the short baffle is greater than the width of the socket, the length of the long clamp is greater than the length of the socket, and the length of the long clamp is equal to the sum of the length of the long baffle and the width of the short baffle. The length of the short clamp is greater than the width of the socket.

10. The shell cover welding fixture according to claim 6, characterized in that, Both drive component one and drive component two are cylinders.

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