Multi-station rotating disc type collector plate welding device

Abstract

The utility model relates to a multi-station turntable type collector plate welding device, which comprises a laser welding mechanism, a turntable mechanism, a battery cell detection mechanism, a collector plate pressing mechanism and a charge coupled device (CCD) detection mechanism, the turntable mechanism comprises a turntable and a plurality of battery cell clamp assemblies, the plurality of battery cell clamp assemblies are arranged along the circumference of the edge of the turntable, and the charge coupled device (CCD) detection mechanism is arranged on the turntable. A battery cell is placed on the battery cell clamp assembly at a feeding station, the battery cell detection mechanism detects whether the battery cell exists on the battery cell clamp assembly or not, the current collecting plate pressing mechanism presses a current collecting plate to the upper end face of the battery cell, the laser welding mechanism welds the current collecting plate, and the CCD detection mechanism detects the welded battery cell. According to the multi-station rotating disc type collector plate welding device, conversion between different stations is conducted in a rotating disc mode, the occupied area is reduced, different technological operations can be conducted at the same time, the working efficiency is high, the clamp structures are opened through the opening and closing structures, faults can be reduced, and the efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a multi-station turntable type current collecting plate welding device. Background Art

[0002] The cell is the most important component of the battery. The cell can only be assembled into a finished battery after it has been processed in sequence through mechanical / ultrasonic flattening, encapsulation, shelling, collector plate welding and sealing welding. Therefore, the performance of the cell has a direct impact on the performance of the battery. The cell preparation and collector plate welding process before battery assembly is very important.

[0003] Currently, when welding the collecting plate at the end of the battery cell, the battery cell is usually fed along a battery cell feeding line distributed in a straight line. A collecting plate loading production line is set on one side of the battery cell feeding line. The collecting plate is transferred by the current collecting plate loading production line to the welding clamping mechanism on the battery cell feeding line. The current collecting plate is clamped between the end of the battery cell and the welding pressure head by the welding clamping mechanism, so as to achieve welding of the collecting plate by laser welding equipment.

[0004] However, in actual applications, it is found that since the existing collector plate welding system can only arrange the welding clamping mechanism and laser welding equipment along the extension direction of the battery cell feeding line, there are problems such as large occupied site space and low welding efficiency. Utility Model Content

[0005] The main purpose of the utility model is to provide a multi-station turntable type current collecting plate welding device to solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multi-station turntable collector plate welding device comprises a laser welding mechanism, a turntable mechanism, a battery cell detection mechanism, a current collector plate clamping mechanism and a CCD detection mechanism, wherein the turntable mechanism comprises a turntable and a battery cell clamp assembly, a plurality of battery cell clamp assemblies are arranged along the edge circumference of the turntable, the battery cells are placed on the battery cell clamp assembly at a loading station, the battery cell detection mechanism detects whether there are battery cells on the battery cell clamp assembly, the current collector plate clamping mechanism presses the current collector plate to the upper end surface of the battery cell, the laser welding mechanism welds the current collector plate, and the CCD detection mechanism detects the battery cells after welding.

[0008] As a preferred technical solution, the battery cell clamp assembly includes a current collecting plate guide structure and a clamp structure, and the current collecting plate guide structure is installed on one side of the clamp structure.

[0009] As a preferred technical solution, the clamp structure includes a profiling block, a clamp guide rail, a guide rod, a clamp spring and a clamp base, the clamp guide rail and the guide rod are installed on the clamp base, the guide rod is inserted into the profiling block, the clamp spring is sleeved in the guide rod, one end of the clamp spring abuts against the clamp base, and the other end abuts against the profiling block, and the profiling block moves along the clamp guide rail.

[0010] As a preferred technical solution, the collecting plate guide structure includes a guide bracket, a guide plate, a guide movable plate, a cam, a guide spring and a guide rail, the guide rail is installed on the guide bracket, the guide plate is hinged on the guide bracket, one end of the guide movable plate is hinged to the guide plate, the cam is rotatably set at the other end of the guide movable plate, the guide movable plate moves along the guide rail, one end of the guide spring is fixed on the guide bracket, and the other end is fixed on the guide movable plate.

[0011] As a preferred technical solution, the guide plate is provided with a guide groove matching the shape of the collecting plate.

[0012] As a preferred technical solution, the turntable mechanism includes a cam track, and the cam track is installed below the turntable.

[0013] As a preferred technical solution, the turntable mechanism includes an opening and closing structure, and the opening and closing structure is installed below the turntable.

[0014] As a preferred technical solution, the opening and closing structure includes an opening and closing bracket, an opening and closing cylinder and an opening and closing block. The opening and closing cylinder is installed on the opening and closing bracket, and the opening and closing cylinder drives the opening and closing block to move.

[0015] The beneficial effects of the utility model are as follows: the above-mentioned multi-station turntable collector plate welding device adopts a turntable to switch between different stations, which reduces the floor space, can carry out different process operations at the same time, has high work efficiency, and opens the clamp structure through the opening and closing structure, which can reduce failures and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the multi-station turntable type current collecting plate welding device involved in the utility model;

[0017] Figure 2 It is a top view of the multi-station turntable type current collecting plate welding device involved in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the clamp structure and the opening and closing structure involved in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the collecting plate guide structure involved in the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] Please combine Figure 1 and Figure 2 As shown, a multi-station turntable collector plate welding device includes a laser welding mechanism 4, a turntable mechanism 1, a battery cell detection mechanism 2, a collector plate pressing mechanism 3 and a CCD detection mechanism 5. The turntable mechanism 1 includes a turntable 11, a battery cell clamp assembly 12, an opening and closing structure 13, a cam track 14 and a turntable driving structure 15. A plurality of battery cell clamp assemblies 12 are arranged along the edge circumference of the turntable 11. In this embodiment, eight battery cell clamp assemblies 12 are provided, which correspond to the battery cell feeding station 111, the battery cell detection station 112, the collector plate pressing mechanism 3 and the CCD detection mechanism 5 according to the production process requirements. The plate loading station 113, the welding station 114, the CCD inspection station 115, the defective rejection station 116, the battery cell unloading station 117 and the reserved station 118, the turntable driving structure 15 drives the turntable 11 to rotate once, and the battery cell fixture assembly 12 moves one station, the cam track 14 is installed under the turntable 11 and is aligned with the CCD inspection station 115, the defective rejection station 116, the battery cell unloading station 117, the reserved station 118 and the battery cell loading station 111, and the opening and closing structure 13 is installed under the turntable 11 and is aligned with the battery cell loading station 111 and the battery cell unloading station 117, the battery cell detection mechanism 2 is aligned with the battery cell detection station 112, the collector plate pressing mechanism 3 and the laser welding mechanism 4 are aligned with the welding station 114, the CCD detection mechanism 5 is aligned with the CCD detection station 115, the opening and closing structure 13 opens the battery cell clamp assembly 12 located on the battery cell loading station 111, the battery cell loading mechanism loads the battery cell into the battery cell clamp assembly 12, and then moves to the battery cell detection station 112, the battery cell detection mechanism 2 detects whether there is a battery cell in the battery cell clamp assembly 12, and the collector plate loading mechanism loads the collector plate in the collector plate loading station 113 The flow disc is loaded into the battery cell fixture assembly 12, and it is detected whether the battery cell fixture assembly 12 has a current collecting disc. The current collecting disc clamping mechanism 3 presses the current collecting disc in the welding station 114, and the welding mechanism 4 welds the current collecting disc to the upper end of the battery cell. The CCD detection mechanism 5 detects the quality of the current collecting disc welding in the CCD detection station 115. If a defect is detected, the defective unloading mechanism will remove the battery cell in the defective rejection station 116. If the detection is qualified, the opening and closing structure 13 will open the battery cell fixture assembly 12 located at the unloading station 117, and the battery cell unloading mechanism will complete the unloading of the welded battery cell.

[0022] Please combine Figure 1 , Figure 2 and Figure 3 As shown, the battery cell clamp assembly 12 includes a current collecting plate guide structure 122 and a clamp structure 121. The current collecting plate guide structure 122 is installed on one side of the clamp structure 121. The current collecting plate guide structure 122 guides the current collecting plate to the upper end surface of the battery cell, thereby ensuring accurate loading of the current collecting plate.

[0023] The clamp structure 121 includes a profiling block 1212, a clamp guide rail 1214, a guide rod 1213, a clamp spring and a clamp base 1211. The clamp guide rail 1214 and the guide rod 1213 are installed on the clamp base 1211. The guide rod 1213 is inserted into the profiling block 1212. The clamp spring is sleeved in the guide rod 1213. One end of the clamp spring abuts against the clamp base 1211 and the other end abuts against the profiling block 1212. The profiling block 1212 moves along the clamp guide rail 1214. The opening and closing structure 13 includes an opening and closing bracket 131, an opening and closing cylinder 132 and an opening and closing block 133. The opening and closing cylinder 132 is installed on the opening and closing bracket 131. The opening and closing cylinder 132 drives the opening and closing block 133 to move. The clamp base 1211 is provided with a penetration groove 1225 for the opening and closing block 133 to enter. When the clamp structure 121 needs to be opened, the opening and closing cylinder 132 drives the opening and closing block 133 to move through the penetration slot 1225 and abut against the profiling block 1212, thereby compressing the clamp spring and moving the profiling block 1212 along the clamp guide rail 1214 to open.

[0024] Please refer to Figure 4As shown, the collecting plate guide structure 122 includes a guide bracket 1221, a guide plate 1223, a guide movable plate 1222, a cam 1224, a guide spring 1225 and a guide rail 1226. The guide rail 1226 is installed on the guide bracket 1221. The guide plate 1223 is hingedly arranged on the guide bracket 1221. One end of the guide movable plate 1222 is hingedly arranged with the guide plate 1223. The cam 1224 is rotatably arranged on the guide movable plate 1222. At the other end, the guide movable plate 1222 moves along the guide rail 1226, the guide bracket 1221 is provided with a spring fixing bolt 1227, the guide movable plate 1222 is provided with a spring movable bolt 1228, one end of the guide spring 1225 is fixed on the spring fixing bolt 1227, and the other end is fixed on the spring movable bolt 1228, and the guide plate 1223 is provided with a guide groove matching the shape of the collecting disk, so that the collecting disk is positioned on the upper end surface of the battery cell. When located at the CCD inspection station 115, the defective rejection station 116, the battery cell unloading station 117, the reserved station 118 or the battery cell loading station 111, the cam 1224 abuts against the cam track 14, and the guide movable plate 1222 moves upward along the guide rail 1226, so that the guide plate 1223 rotates relative to the guide movable plate 1222, thereby opening the guide plate 1223; when located at the battery cell inspection station 112, the current collecting plate loading station 113 and the welding station 114, the cam 1224 is separated from the cam track 14, and under the traction of the guide spring 1225, the guide movable plate 1222 moves downward along the guide rail 1226, so that the guide plate 1223 rotates relative to the guide movable plate 1222, so that the guide plate 1223 is placed on the upper end of the battery cell.

[0025] The above-described embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent application scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A multi-station turntable collector plate welding device, It is characterized in that It includes a laser welding mechanism, a turntable mechanism, a battery cell detection mechanism, a collector plate clamping mechanism and a CCD detection mechanism. The turntable mechanism includes a turntable and a battery cell clamp assembly. Multiple battery cell clamp assemblies are arranged along the edge circumference of the turntable. The battery cells are placed on the battery cell clamp assembly at the loading station. The battery cell detection mechanism detects whether there are battery cells on the battery cell clamp assembly. The collector plate clamping mechanism presses the collector plate to the upper end surface of the battery cell. The laser welding mechanism welds the collector plate. The CCD detection mechanism detects the welded battery cells.

2. The multi-station turntable collector plate welding device according to claim 1, It is characterized in that The battery cell fixture assembly includes a current collecting plate guide structure and a fixture structure, and the current collecting plate guide structure is installed on one side of the fixture structure.

3. The multi-station turntable collector plate welding device according to claim 2, It is characterized in that The clamp structure includes a profiling block, a clamp guide rail, a guide rod, a clamp spring and a clamp base. The clamp guide rail and the guide rod are installed on the clamp base. The guide rod is inserted into the profiling block. The clamp spring is sleeved in the guide rod. One end of the clamp spring abuts against the clamp base, and the other end abuts against the profiling block. The profiling block moves along the clamp guide rail.

4. The multi-station turntable collector plate welding device according to claim 3, It is characterized in that The collecting plate guide structure includes a guide bracket, a guide plate, a guide movable plate, a cam, a guide spring and a guide rail, wherein the guide rail is installed on the guide bracket, the guide plate is hinged on the guide bracket, one end of the guide movable plate is hinged to the guide plate, the cam is rotatably arranged on the other end of the guide movable plate, the guide movable plate moves along the guide rail, one end of the guide spring is fixed on the guide bracket, and the other end is fixed on the guide movable plate.

5. The multi-station turntable collector plate welding device according to claim 4, It is characterized in that The guide plate is provided with a guide groove matching the shape of the current collecting plate.

6. The multi-station turntable collector plate welding device according to claim 5, It is characterized in that The turntable mechanism comprises a cam track, and the cam track is installed below the turntable.

7. The multi-station turntable collector plate welding device according to claim 3, It is characterized in that The turntable mechanism includes an opening and closing structure, and the opening and closing structure is installed below the turntable.

8. The multi-station turntable collector plate welding device according to claim 7, It is characterized in that The opening and closing structure comprises an opening and closing bracket, an opening and closing cylinder and an opening and closing block. The opening and closing cylinder is installed on the opening and closing bracket, and the opening and closing cylinder drives the opening and closing block to move.

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