Patent ID: 6374485
Filing Date: 2002-04-23
Classification: B21J,B23P,Y10T

Abstract:
An automatic pull pin fastening apparatus, comprising a feeding unit, a delivering device, a positioning board, a transporting device and a stretching device mounted on a machine, said machine is further provided thereon with an air pressure unit and an oil pressure unit to supply the required dynamic force, wherein:said feeding unit is provided to have scattered pull pins tidied and then supplied for said delivering device; said delivering device includes a tidying unit, a plurality of pin picking units and a distributing unit, said pin picking units each includes a lower guide block, an upper guide block, a support block and a pin picking pneumatic cylinder, said distributing unit includes an upper board and a lower board with a pin collecting block therebetween, and a movable panel, a delivery board, a delivery sliding platform and a pin distributing platform; said transporting device is comprised of a transporting seat and a top board with a control board and a base board therebetween, said control board and said base board is adapted to free sliding between said transporting seat and said top board; said stretching device includes a pin receiving board and a bottom board with a middle board located therebetween; said pull pin fastening apparatus is characterized by that: said delivering device is installed between said feeding unit and said positioning board, said transporting device is mounted between said positioning board and said stretching device and is displaced to and fro therebetween, said delivering device sends fast by pushing a predetermined amount of pull pins to said positioning board at one time by using compressed air to be taken by said transporting device and for transporting to said stretching device, thus said stretching device pulls said predetermined amount of pull pins to combine a plurality of plates at one time to complete operation of pull pin fastening by automation processing.