TAPPING PLATE MANUFACTURING APPARATUS AND TAPPING PLATE MANUFACTURING METHOD USING SAME

Disclosed is a tapping plate manufacturing apparatus. The tapping plate manufacturing apparatus is characterized by including: a primary cut processing part which performs piercing, which involves producing a hole that functions as a reference in a metal plate positioned between an upper die and a lower die, and notching, which involves cutting off a predetermined portion; a reverse drawing processing part in which a first punch installed in the lower die ascends toward a reverse drawing die installed in the upper die to form, on the metal plate positioned between the first punch and the reverse drawing die, a reverse hemispherical molding portion which is convex in the direction of the upper die; a forward drawing processing part in which a second punch positioned behind the reverse drawing die in the upper die, while pressing the reverse hemispherical molding portion, descends toward a first forward drawing die positioned behind the first punch in the lower die to form a forward hemispherical molding portion which is convex in the direction of the lower die; a piercing processing part which forms a hole in the processed forward hemispherical molding portion; a restrike processing part which processes the forward hemispherical molding portion, in which the hole is formed into the dimensions for forming a final tap nut; a tap nut shape processing part which processes the forward hemispherical forming portion in which the hole is formed into a final tap nut shape; a tapping processing part which forms a tap in the tap nut formed through the tap nut shape processing part; and a secondary cut processing part which cuts the area around the tap nut to complete a tap nut plate. L'invention porte sur un appareil de fabrication de plaque de taraudage. L'appareil de fabrication de plaque de taraudage est caractérisé en ce qu'il comprend : une partie de traitement à coupe primaire qui réalise un perçage, qui consiste à produire un trou qui sert de référence dans une plaque métallique positionnée entre une matrice supérieure et une matrice inférieure, et un entaillage, qui consiste à découper une partie prédéfinie ; une partie de traitement par étirage inverse dans laquelle un premier poinçon installé dans la matrice inférieure monte vers une matrice d'étirage inverse installée dans la matrice supérieure pour former, sur la plaque métallique positionnée entre le premier poinçon et la matrice d'étirage inverse, une partie de moulage hémisphérique inverse qui est conve