Automatic tapping device for use on a mechanical press

Details Automatic tapping device for use on a mechanical press Automatic tapping device for use on a mechanical press

B - Operations, Transporting

21

B

113/73

B21B 28/00 (2006.01) B21B 35/00 (2006.01) B23G 3/00 (2006.01)

Patent

CA 1180955

IN THE PATENT OFFICE PATENT APPLICATION entitled AUTOMATIC TAPPING DEVICE FOR USE ON A MECHANICAL PRESS in the name of ABSTRACT OF THE DISCLOSURE The invention relates to an automatic tapping device for use on a mechanical press. The device includes a reversible screw fixed rigidly to a lower block whilst, in an upper block, an actuating nut engaged on the screw and a rotary tapping bit holder spindle are rotatably mounted, The actuating nut and the rotary tapping bit holder are connec- ted by a chain transmission, including, in the example, gear wheels borne by an intermediate shaft. The invention is appli- cable to the tapping of parts on mechanical presses, such as excentric stamping presses or brace deep-drawing presses.

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