Cutting-off chamfering die for lithium-ion battery pole lug

Abstract

The invention relates to a cutting-off chamfering die for a lithium-ion battery pole lug. The cutting-off chamfering die comprises a base, a concave and convex type vertical cutter die set, a pole lug rubber cutting-off cutter set, positioning pins and guide rods. The base is divided into an upper layer and a lower layer which are connected through the guide rods; the concave and convex type vertical cutter die set comprises an upper cutter die and a lower cutter die, wherein the upper cutter die is a rectangular male die with four round corners, and is arranged on the lower surface of the upper layer of the base, and the lower cutter die is a female die in a corresponding shape and is arranged at the corresponding position of the lower layer of the base; the pole lug rubber cutting-off cutter set is divided into an upper cutting-off portion and a lower cutting-off portion, the upper cutting-off portion is a piece-shaped male die and is arranged on the lower surface of the upper layer of the base, and the lower cutting-off portion is a strip-shaped female die and is arranged at the corresponding position of the lower layer of the base; and the positioning pins are arranged between the concave and convex type vertical cutter die set and the pole lug rubber cutting-off cutter set and are used for positioning the position of the pole lug. The cutting-off chamfering die is easy to operate; and a plurality of working procedures are integrated, one plate pole lug can be machined at a time, and therefore the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of manufacturing tabs of lithium-ion power batteries, in particular to a die for cutting and rounding corners of tabs of lithium-ion power batteries. Background technique [0002] The tabs of lithium-ion power batteries are composed of tab glue and metal aluminum / nickel or nickel-plated copper with a thickness greater than 0.1mm. After the tab is heat-sealed and formed by the hot press, it must be cut according to the customer's size requirements and the four end corners after cutting should be rounded. The existing method is to use a manual or pneumatic cutter to first cut the head end of a plate Cut off the excess part according to the size requirements, then cut off the excess part from the other end according to the requirements, and then cut off the excess part of the ear glue on both sides of the conductor according to the size of the ear, then remove the upper and lower protective PET, and put it into the round...

AI Technical Summary

Problems solved by technology

After the tab is heat-sealed and formed by the hot press, it must be cut according to the customer's size requirements and the four end corners after cutting should be rounded. The existing method is to use a manual or pneumatic cutter to cut the head end of a plate Cut off the excess part according to the size requirements, then cut off the excess part from the other end according to the requirements, and then cut off the excess part of the ear glue on both sides of the conductor according to the ear size requirements, then remove the upper and lower protective PET, and put it into the round corner mold Stamping and chamfering, this will have the following disadvantages: 1. Low work efficiency; 2. High defect rate caused by artificial; 3. Multiple processes lead to poor appearance of the ear glue, which may easily cause scratches and abrasions on the conductor surface; 4. Dimensions The consistency is not good or even out of tolerance; 5. Because the power battery tabs are made of soft metal, the cut surface of the manual cutter or pneumatic cutter will have flanging

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