B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 43/14 (2006.01) B21D 22/08 (2006.01) B21D 28/12 (2006.01) B21D 37/08 (2006.01)
Patent
CA 2639502
The invention relates to a device and a method for fine blanking and forming a workpiece out of a flat strip. The invention has the task to provide a method and a device for fine blanking of small to medium sized parts which make it possible to massively save valuable materials, to combine the machining function of the active elements with the transportation function from one machining stage to the following machining stage increasing at the same time the quantity of strokes and the efficiency and to avoid stoppages of the production process caused by not removed from the tool waste. This task is solved in the manner that the cutting plate (13) is formed as disc-shaped transfer part with several adapted to the effective elements cutting openings (20), which take up and clamp a cut out blank (8) to transport it from one machining stage to the next, wherein the transfer part is turnable with regard to the effective elements of the upper part (1) around a virtual axis (A) parallel to the machining direction in the center of the transfer part, turnable perpendicular to it after a lift over the effective elements (5, 17) of the lower part, and the cutting openings (20) in the transfer part are arranged on a common base circle (GK) the radius (R) of which coincides with the distance oft the machining stage to the axis (A), and that the machining stages of the upper part are arranged on the base circle (GK) at fix distances to each other, wherein the machining stages in the transfer part are allocated at least two diametrically opposed at the circumference, fixed in the pressure pad (3) of the upper part, arranged parallel to the axis (A) locking bolts (10) and several arranged diametrically opposed at the circumference locking openings (23) in the transfer part for adjusting, fixing and lining up the effective elements to each other.
Feintool Intellectual Property Ag
Riches Mckenzie & Herbert Llp
LandOfFree
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