Collector plate assembly, battery cover plate assembly, cylindrical battery and assembly process

The present invention provides a collector plate assembly, a battery cover plate assembly, a cylindrical battery and an assembly process, the collector plate assembly comprises: a collector plate body, one end of the collector plate body is provided with a first connection portion; the two ends of the connecting piece in the length direction are provided with a second connecting part and a third connecting part respectively, the second connecting part is used for being fixedly connected with the center of a battery cover plate, and the third connecting part is rotationally connected with the first connecting part; and the distance from the center of the collector plate body to the first connecting part is equal to the distance from the second connecting part to the third connecting part. Compared with the prior art, the current collecting disc does not need to be bent, and accurate alignment of the cover plate and the shell can be conveniently and quickly realized, so that defective products caused by a bendi