Four-side chamfering needle cutting device

The invention relates to a four-side chamfering needle cutting device which comprises a base, a first driving source, a chamfering mechanism, a twist-off component, a needle foot distributing mechanism and a feeding mechanism, and the first driving source is fixedly arranged on one side of the base; the chamfering mechanisms are arranged on the base in a circumferential array mode, and the chamfering mechanisms in the circumferential array are close to or away from the axis of a wire under the action of the first driving source; the twist-off component is arranged on the other side of the base, and the chamfering mechanism drives the twist-off component to twist and cut off around the axis of the wire rod in a linkage mode; the pin distributing mechanism is arranged right in front of the twist-off component in a manner of moving back and forth in a reciprocating manner along the longitudinal direction and is used for receiving formed contact pins; the feeding mechanism and the first driving source are arrange