The invention discloses a full-automatic
drill bit replacing type perforating
machine. The
machine comprises a perforating head, a rotating mechanism for driving the perforating head to rotate to perforate, a dismounting mechanism for automatically dismounting a
drill bit on the perforating head, and a mounting mechanism for automatically mounting the
drill bit on the perforating head, wherein a first
servo motor can drive a first synchronous belt wheel and a second synchronous belt wheel during working, and a
ball screw can rotate through the transmission of the synchronous belt wheels, and thus the
drill bit is driven to lengthways reciprocate; a second
servo motor can drive a third synchronous belt wheel and a fourth synchronous belt wheel, and the
drill bit is driven to rotate through the transmission of the synchronous belt, thus realizing perforating; a cylinder runs to enable simple, quick and accurate automatic replacing of the
drill bit after perforating. The
machine is proper in size, simple to assemble, high in assembling performance, and high in transmission torque; the machine is applicable to
processing of commonly-used paperboards, plastic,
steel plates, workpieces, etc., and the applicable scope is wide; the service life of a cutter can be prolonged; and the
production quality and efficiency can be improved.