APPARATUS FOR OPENING AND CHANGING DIES Russian patent published in 1995 - IPC

FIELD: forging press equipment. SUBSTANCE: apparatus includes a base, supporting a row of stationary racks and rotary brackets. The racks and the brackets are provided by die supporting plates with means for fastening lower and upper parts of the die, combined with use of guiding columns to a single die unit, and they are mutually connected by quickly-disengageable braces with formation of a rigid frame. The invention provides an optimal decision of task of reliable operation of the apparatus due to using in the structure of that apparatus the single rigid base, on which a row of die supporting plates is mounted. These plates are in the form of tables, each table is provided by an individual mechanism for moving that table in a vertical plane. That mechanism is in the form of screw-nut pairs, whose nuts are pressed in stepped sleeves, being in their turn rigidly connected with a worm gear of worm reduction gears. The last are mutually joined through cone reduction gears with a common drive from a motor with the aid of shafts. Such structure provides synchronous opening of the lower and the upper parts of the die over its whole connection plane. EFFECT: enhanced structure of the apparatus. 1 cl, 9 dwg