Two-way fine stamping die and two-way fine stamping part processing method

Abstract

The invention relates to a fine stamping die and a two-way fine stamping part processing method. The two-way fine stamping die is characterized in that an upper die and a lower die respectively adopt a structure in which a concave die contains a convex die, an upper convex die is arranged in a cavity of an upper concave die, the upper concave die is arranged on an upper die base, a lower convex die is arranged in a cavity of a lower concave die, the lower concave die is fixed on a lower die base through a concave die fixing plate, and the upper convex die and the lower convex die slide in the concave die through the pressure transmitted by a fine stamping pressure machine. The two-way fine stamping part processing method comprises the following steps that: the lower die moves upwards, the upper die and the lower die press a material so that the material is in a pressed state, and the lower convex die continuously moves upwards to the position which is 1 / 3-1 / 2 of the thickness of the material; the upper convex die moves downwards, and the material is chopped under the material pressing force, chopping force and reserve pressure until the material is separated; and the lower die moves downwards, the upper die and the lower die are separated, and the lower convex die ejects a part from the lower concave die. According to the invention, the finely-stamped part product obtained by the two-way fine stamping part processing method is good in chopping quality, and can be directly used for mechanical assembly, so that the production efficiency can be greatly improved.

Description

technical field [0001] The invention relates to a processing method for fine blanking parts, in particular to a bidirectional fine blanking die and a processing method for bidirectional fine blanking parts. Background technique [0002] Fine blanking is the abbreviation of fine blanking (stamping), which refers to blanking parts with high tolerance level and good cross-section quality directly from the sheet metal. It is widely used in national defense, instrumentation, automobile, electronics and other industries, and can replace casting , forging, and cutting parts. Manufactured by fine blanking technology, the productivity of blanking parts can be greatly improved and the production cost can be reduced. Existing fine-blanking processing methods are mainly the fine-blanking die used by the three-action press and the hydraulic fine-blanking die used on the hydraulic press, all of which are single-directional fine-blanking technology. [0003] Parts produced by using exist...

AI Technical Summary

Problems solved by technology

[0003] Parts produced by using existing fine blanking dies and processing methods are prone to local fractures and tears on the side section corresponding to the blanking slump surface, and burrs inevitably appear on the section, which increases the subsequent processing Difficulty in process and process increases cost and quality risk

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