Patent ID: 7331207
Filing Date: 2008-02-19
Classification: B21J

Abstract:
1. A power hammer assembly comprising: a body assembly; a motor assembly operably connected to the body assembly; an upper die assembly having a transmission portion and an upper forming die, the transmission portion attached to the motor assembly such that the upper forming die is driven in a vertical, reciprocating motion; a lower die assembly having a die adjustment assembly and a lower forming die, the die adjustment assembly allowing the lower forming die to be selectively positioned relative to the upper forming die to define a die opening between the lower forming die and the upper forming die; and a second upper forming die and a second lower forming die, the second upper forming die having a second upper shank length different from an upper shank length of the upper forming die and the second lower forming die having a second lower shank length different from a lower shank length of the lower forming die, wherein the means for vertically positioning the lower forming die selectively positions the lower forming die so as to vary the die opening to accommodate the second upper forming die and the second lower forming die.