Patent ID: 6220137
Filing Date: 2001-04-24
Classification: B21D,Y10T

Abstract:
A press apparatus comprising:an actuation cam located in an upper die;a passive cam located in a lower die which is contact-pressed and driven by the actuation cam and to which a processing member is mounted;a guide base in the lower die for sliding and guiding the passive cam, said guide base including a main body member having a longitudinally-extending cavity section therein;a first supporting plate located at a first end of said main body member of said guide base, said first supporting plate having small-diameter fitting holes therein;a second supporting plate located at a second end of said main body member of said guide base, said second supporting plate having supporting holes therein;guide posts which are mounted across the guide base, each of said guide posts having a first end portion fitted into a respective one of said small-diameter fitting holes and a second end portion fitted into a respective one of said supporting holes, said guide posts being laterally spaced apart from one another and on opposite sides of said cavity section of said main body member;guide apertures located in said passive cam, said guide apertures slidably receiving said guide posts therein so that the passive cam is slidable on the guide posts; anda force applying device located in said cavity section of said main body portion for applying a biasing force to the passive cam,the passive cam advancing along a straight line along the guide posts, the passive cam being externally fitted into the guide base, and a sliding surface of the passive cam and the guide base having a vertical surface,the passive cam being fitted into the guide base so that when the guide posts mounted across the guide base are withdrawn from said small-diameter fitting holes and said guide apertures, the passive cam can be vertically lifted and dismounted from the guide base.