Patent ID: 7340931
Filing Date: 2008-03-11
Classification: B21D,Y10T

Abstract:
1. A combined roller shape forming and punching machine controlled to punch holes on a metal sheet material being delivered through said roller shape forming machine during operation of said roller shape forming machine, comprising: a roller shape forming machine having a series of rollers for shaping metal sheet material installed on a machine base; two locating frames arranged in parallel on said machine base of said roller shape forming machine, said locating frames each comprising a vertical wall, two upper supports and two lower supports arranged on said vertical wall at different elevation, two first shafts respectively horizontally provided at said upper supports, and two second shafts respectively horizontally provided at said lower supports; an upper mold holder holding a plurality of upper punching dies, said upper mold holder having two horizontal coupling holes and two vertical axle holes; a lower mold holder holding a plurality of bottom punching dies corresponding to said upper punching dies, said lower mold holder having two horizontal coupling holes and two vertical axle holes; four first bearing blocks respectively pivotally mounted on said first shafts at said upper supports, said first bearing blocks each having an eccentric rod respectively pivotally coupled to the horizontal coupling holes of said upper mold holder; four first transmission gears respectively fixedly mounted around the periphery of said first bearing blocks; four second bearing blocks respectively pivotally mounted on said second shafts at said lower supports, said second bearing blocks each having an eccentric rod respectively pivotally coupled to the horizontal coupling holes of said lower mold holder; four second transmission gears respectively fixedly mounted around the periphery of said second bearing blocks and respectively meshed with said first transmission gears; two guide axles respectively inserted through the vertical axle holes of said upper mold holder and the vertical axle holes of said lower mold holder; a plurality of fastening members respectively fastened to said guide axles at top and bottom sides of the vertical axle holes of said upper mold holder to affix said guide axles to said upper mold holder; two axle bearings respectively mounted in the vertical axle holes of said lower mold holder to support said guide axles in the vertical axle holes of said lower mold holder; two first driven gears respectively meshed between said first transmission gears at the first bearing blocks at the vertical walls of said locating frames, said first driven gears each having a gear shaft respectively pivotally mounted on the vertical walls of said locating frames; two second driven gears respectively meshed between the second transmission gears at the second bearing blocks at the vertical walls of said locating frames, said second driven gears each having a gear shaft respectively pivotally mounted on the vertical walls of said locating frames; a drive gear set, said drive gear set comprising a gear shaft pivotally supported between the vertical walls of said locating frames, two drive gears respectively fixedly mounted on the gear shaft of said drive gear set and respectively meshed with the second transmission gears at the second bearing blocks at the vertical wall of one of said locating frames; and a motor coupled to the gear shaft of said drive gear set and adapted to rotate said drive gear set; wherein said motor is controlled to rotate the drive gears of said drive gear set during operation of both the said roller shape forming machine and delivery of a metal sheet material through said roller shape forming machine, causing said second transmission gears to rotate said second driven gears and said first transmission gears and then said first driven gears, so that said first bearing blocks and said second bearing blocks are rotated and, and said upper mold holder and said lower mold holder are respectively forced by the eccentric rods said first bearing blocks the eccentric rods of said second bearing blocks to move alternatively forwards and backwards relative to each other and to punch said metal sheet material with said upper punching dies and said bottom punching dies, wherein the cycling of relatively forward and backward motion between said upper mold holder and said lower mold holder is set to machine the delivering speed of said metal sheet material through said roller shape forming machine, wherein said motor is controlled to punch the metal sheet material during a shape forming operation by the roller shape forming machine.