Novel eccentric connecting rod pole piece angle punching structure

Abstract

The utility model relates to a novel eccentric connecting rod pole piece angle punching structure which comprises a machine frame, a driving structure, a position adjusting structure, a punching structure and a punching base, the position adjusting structure drives the machine frame to move, and the driving structure, the punching structure and the punching base are installed on the machine frame. And the driving structure drives the blanking structure to move towards the pole piece positioned on the blanking base. According to the novel eccentric connecting rod pole piece angle punching structure, corners of a pole piece can be punched to form round corners, so that the risk that a base material punctures a diaphragm is avoided, meanwhile, the quality of the pole piece is improved, the adopted round head connecting rod is simple in structure, and the friction resistance of the round head connecting rod and the guide column guide combination moving up and down repeatedly to the mechanism is greatly reduced; the situation that the mechanism is blocked in the movement process is avoided, the mechanism is easy to install and debug, and after a punching die is installed in the model changing process, the levelness and pressure of a cutter can be guaranteed only by adjusting the fine adjustment module in the debugging process.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a novel eccentric connecting rod pole piece angle punching structure. Background Art

[0002] The pole piece forming technology has been used in the lithium battery industry for a long time, and the corresponding slicing technology is very mature. At present, various lithium battery pole ear die cutting machines and forming machines occupy a large market share, and the pole piece forming of related machines has also developed in recent years. The most commonly used pole piece forming processes are wood die forming and hardware die forming. Among them, due to the low overall efficiency of the wood die machine, the mainstream application in the market is to use a hardware punching die to first form the pole ear of the pole piece and punch out the eight small fillets Ra at the intersection of the four sides of the pole piece, and then convey the semi-finished pole piece to the cutting knife mechanism through the traction mechanism for cutting and finally forming the pole piece. The formed pole piece is completed through the conveyor belt and the pole piece collection mechanism. The entire process from pole piece forming to material box collection. However, this pole piece forming process will still form four 90° right angles at the four corners of the pole piece. Because the pole piece has right angles, that is, the copper foil and aluminum foil of the pole piece substrate also exist in the form of right angles, which will cause the risk of the substrate puncturing the diaphragm in the later stages of lamination, injection, and formation. Utility Model Content

[0003] The main purpose of the utility model is to provide a novel eccentric connecting rod pole piece angle punching structure to solve the above technical problems and to be able to punch out the corners of the pole piece to form rounded corners.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A novel eccentric connecting rod pole piece angle punching structure comprises a frame, a driving structure, a position adjustment structure, a punching structure and a punching base, wherein the position adjustment structure drives the frame to move, and the driving structure, the punching structure and the punching base are installed on the frame, and the driving structure drives the punching structure to move toward the pole piece located on the punching base, and the driving structure comprises a driving motor, an eccentric shaft, a round head connecting rod and a round head base, and the round head connecting rod comprises a round head end and an annular end, the round head end is fixedly arranged at the lower end of the annular end, and the annular end is sleeved on the eccentric shaft, and a round head mounting groove is arranged on the round head base, and the round head base is installed on the punching structure, and the round head end is installed in the round head mounting groove, and the driving motor drives the eccentric shaft to rotate, drives the round head connecting rod to make a circular motion, thereby driving the round head base to move longitudinally.

[0006] As a preferred technical solution, the punching structure includes a mounting plate, a guide rod, a fine-tuning structure, a punching die and a fixing nut. The guide rod is fixed on the frame, the round head base is fixed on the mounting plate, the punching die is installed on the mounting plate through the fine-tuning structure, the fixing nut is installed on the mounting plate and is connected to the punching die through the fine-tuning structure.

[0007] As a preferred technical solution, the punching structure further includes a dial indicator, and the dial indicator is installed on the mounting plate.

[0008] The position adjustment structure includes an X-axis position adjustment structure and a Y-axis position adjustment structure. The Y-axis position adjustment structure drives the X-axis position adjustment structure to move, and the X-axis position adjustment structure drives the frame to move.

[0009] As a preferred technical solution, the position adjustment structure further includes a dust cover, and the dust cover is installed on the outer surface of the Y-axis position adjustment structure.

[0010] As a preferred technical solution, transition plates are provided on both sides of the punching base.

[0011] As a preferred technical solution, a waste collection structure is provided below the punching base.

[0012] The beneficial effects of the utility model are as follows: the novel eccentric connecting rod pole piece angle punching structure can punch out the edges and corners of the pole piece to form rounded corners, thereby avoiding the risk of the substrate puncturing the diaphragm, while also improving the quality of the pole piece, and the round-head connecting rod structure adopted is simple, and the up and down repeated movement of the round-head connecting rod and the guide column guide combination greatly reduces the friction resistance of the mechanism, thus avoiding the mechanism from suffocating during movement, and the mechanism is simple to install and debug. After the punching die is installed when changing the model, only the fine-tuning module needs to be adjusted during debugging to ensure the level and pressure of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The schematic diagram of the new eccentric connecting rod pole piece angle punching structure involved in the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The schematic diagram of the new eccentric connecting rod pole piece angle punching structure involved in the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 The utility model is a schematic structural diagram of a round head connecting rod and a round head base. DETAILED DESCRIPTION

[0016] 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.

[0017] Please combine Figure 1 and Figure 2 As shown, a novel eccentric connecting rod pole piece angle punching structure includes a frame 1, a driving structure 2, a position adjustment structure 5, a punching structure 3, a punching base 4, a transition plate 7 and a waste collecting structure 6. The position adjustment structure 5 drives the frame 1 to move, the driving structure 2, the punching structure 3 and the punching base 4 are installed on the frame 1, the driving structure 2 drives the punching structure 3 to move toward the pole piece located on the punching base 4, the transition plate 7 is arranged on both sides of the punching base 4, the waste collecting structure 6 is arranged below the punching base 4, the position adjustment structure 5 is used to adjust the position of the frame 1 so that the punching structure 3 can be accurately aligned with the position where the pole piece needs to be cut, the waste collecting structure 6 is used to collect waste formed after punching, and the transition plate 7 is used to support the pole piece to enter or leave the punching base 4.

[0018] Please combine Figure 1 , Figure 2 and Figure 3 As shown, the driving structure 2 includes a driving motor 21, an eccentric shaft 22, a round head connecting rod 23 and a round head base 24. The round head connecting rod 23 includes a round head end 232 and an annular end 231. The round head end 232 is fixedly arranged at the lower end of the annular end 231. The annular end 231 is sleeved on the eccentric shaft 22. A round head mounting groove 241 is arranged on the round head base 24. The round head base 241 is installed on the punching structure 3. The round head end 232 is installed in the round head mounting groove 241. The driving motor 21 drives the eccentric shaft 22 to rotate, drives the round head connecting rod 23 to make a circular motion, thereby driving the round head base 24 to move longitudinally.

[0019] Please continue to refer to Figure 1 and Figure 2 As shown, the punching structure 3 includes a mounting plate 31, a guide rod 34, a fine-tuning structure 32, a punching die 33, a fixing nut 35 and a dial indicator 46. The guide rod 34 is fixed on the frame 1, and the mounting plate 31 moves along the guide rod 34. The round head base 24 is fixed on the mounting plate 31. The punching die 33 is mounted on the mounting plate 31 through the fine-tuning structure 32. The fixing nut 35 is mounted on the mounting plate 31 and is connected to the punching die 33 through the fine-tuning structure 32. The driving motor 21 drives the eccentric shaft 22 to rotate, driving the round head connecting rod 23 to make a circular motion, thereby driving the round head base 24 to move longitudinally, thereby driving the mounting plate 31 to move along the guide rod 34, so that the punching die 33 punches the pole piece. The dial indicator 36 is installed on the mounting plate 31 to sense the pressure of the punching die 33, thereby achieving precise adjustment.

[0020] The position adjustment structure 5 includes an X-axis position adjustment structure 52, a Y-axis position adjustment structure 51 and a dust cover 3. The Y-axis position adjustment structure 51 drives the X-axis position adjustment structure 52 to move, and the X-axis position adjustment structure 52 drives the frame 1 to move. The dust cover 53 is installed on the outer surface of the Y-axis position adjustment structure 51 to prevent dust formed by punching from entering.

[0021] 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 new type of eccentric connecting rod pole piece angle punching structure, characterized in that: It includes a frame, a driving structure, a position adjustment structure, a punching structure and a punching base, the position adjustment structure drives the frame to move, the driving structure, the punching structure and the punching base are installed on the frame, the driving structure drives the punching structure to move toward the pole piece located on the punching base, the driving structure includes a driving motor, an eccentric shaft, a round head connecting rod and a round head base, the round head connecting rod includes a round head end and an annular end, the round head end is fixedly arranged at the lower end of the annular end, the annular end is sleeved on the eccentric shaft, a round head mounting groove is arranged on the round head base, the round head base is installed on the punching structure, the round head end is installed in the round head mounting groove, the driving motor drives the eccentric shaft to rotate, drives the round head connecting rod to make a circular motion, thereby drives the round head base to move longitudinally.

2. The novel eccentric connecting rod pole piece angle punching structure according to claim 1 is characterized in that: The punching structure includes a mounting plate, a guide rod, a fine-tuning structure, a punching die and a fixing nut. The guide rod is fixed on the frame, the round head base is fixed on the mounting plate, the punching die is mounted on the mounting plate through the fine-tuning structure, the fixing nut is mounted on the mounting plate and connected to the punching die through the fine-tuning structure.

3. The novel eccentric connecting rod pole piece angle punching structure according to claim 2 is characterized in that: The punching structure further includes a dial indicator, which is mounted on the mounting plate.

4. The novel eccentric connecting rod pole piece angle punching structure according to claim 1 is characterized in that: The position adjustment structure includes an X-axis position adjustment structure and a Y-axis position adjustment structure. The Y-axis position adjustment structure drives the X-axis position adjustment structure to move, and the X-axis position adjustment structure drives the frame to move.

5. The novel eccentric connecting rod pole piece angle punching structure according to claim 4 is characterized in that: The position adjustment structure further includes a dust cover, and the dust cover is installed on the outer surface of the Y-axis position adjustment structure.

6. The novel eccentric connecting rod pole piece angle punching structure according to claim 1 is characterized in that: Transition plates are arranged on both sides of the punching base.

7. The novel eccentric connecting rod pole piece angle punching structure according to claim 1 is characterized in that: A waste collection structure is arranged below the punching base.

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