Cam gear punch

Abstract

A cam gear punch has a simple structure and is capable of slowing down punching space and accelerating punching pressure. The punch has a punch mainframe which includes a motor to drive a transmission cam gear. The transmission cam gear engages with a driven cam gear which is mounted on a transmission shaft. The transmission shaft has one end pivotally mounting in the punch mainframe and another end coupling with the driven cam gear. An eccentric transmission wheel is mounted on the transmission shaft. The eccentric transmission wheel has one end engaging with a slide block. The transmission cam gear and driven cam gear are formed in irregular shapes such that when the transmission cam gear drives the drive cam gear to rotate synchronously, the eccentric transmission wheel may be moved in a multi-stage fashion at different speeds.

Dependencies are inferred from the claim text.