Mold for conical bag shell forming and forming method of conical bag shell of mold

Abstract

Disclosed are a mold for conical bag shell forming and a forming method of a conical bag shell of the mold. The mold comprises an inclined block, an upper template, a drawing male mold, a screw, a blank holder, a female mold assembly, a split mold positioning rod, an ejector rod, a lower template, a forming male mold, forming rubber, a hanging rope, a nut and a gasket. The female mold assembly adopts an insert structure and is arranged below the blank holder. The side surface of the female mold assembly is provided with the split mold positioning rod. The forming method comprises the steps that a product blank is put into a positioning annular groove of the female mold assembly, four isometric rods are suspended in a working table shape groove on equipment, blank holder force is transmitted to the blank holder under the action of a pressing machine, then the blank is pressed tightly through the inclined block, the screw, the nut and the gasket to form blank pressing, and a product is drawn initially and formed; and then the drawing male mold is changed into the forming male mold, the forming rubber is added into a shape cavity in the product until being attached to the inner shapeof the female mold assembly fully, and the product is formed. According to the mold for conical bag shell forming and the forming method of the conical bag shell of the mold, separation and manufacturing technology optimization of a blank holder mechanism and the die is achieved, the manufacturing cost is reduced, the manufacturing cycle is shortened, and product reliability, comprehensive mechanical properties and the ability to resist pressure and corrosion are improved.

Description

technical field [0001] The invention relates to a forming die for conical cladding and a forming method thereof, in particular to a forming die for conical cladding in a shielding assembly and a forming method for the conical cladding thereof, which belongs to large cryogenic stamping forming technology field. Background technique [0002] The conical cladding is a cryogenic stamping structural part with thin austenitic stainless steel walls and irregular shapes. It is airtightly combined with the upper and lower spherical shells to form a light shield, which is an important component of the heavy shield. If the part is decomposed into several structural parts with simple shapes, which are processed separately and then assembled and welded, although the difficulty of forming is reduced, the difficulty of assembly and welding is increased, especially the strength of the product after assembly and welding is reduced, and the airtightness And flaw detection is difficult, and t...

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