Combined blanking curved progressive die and processing method employing same

Abstract

The invention discloses a combined blanking curved progressive die and a processing method employing same; the progressive die is composed of a blanking module and a curved module by adopting the method, and the blanking module and the curved module are mutually independent; for a continuous blanking curved piece with the same type, on the basis of not changing the formwork structure, workpiece formation is realized by regulating a curved insert in the independent module and arranging idle station at the junction position of the two modules; the progressive die design method overcomes the problem of inconvenient formation process and modification of a die structure caused by the integral type framework of the traditional blanking curved progressive die, the fast replacement ability of main parts of the die structure is improved, the die development cost is reduced on the premise of ensuring the precision, so as to realize convenience and flexibility of punching production.

Description

technical field [0001] The invention relates to the field of metal stamping processing, in particular to a stamping processing die and method that require multi-process punching and bending parts. Background technique [0002] When stamping parts of complex connectors, it is necessary to punch, bend, shape, rivet and cut the sheet metal. Typical complex continuous blanking and bending parts such as figure 1 shown. The overall size of the plug-in parts has certain standards in order to comply with the electronic product test specifications, and the designer needs to flexibly set the bending size. There are two main methods of processing such parts: the first method is to use multiple composite molds to form step by step according to the shape characteristics of the part; the second method is to use a progressive die on a multi-station press to realize stamping . [0003] For complex connectors, the outer dimension is small and the shape is complex. The mold using the firs...

AI Technical Summary

Problems solved by technology

This formwork structure has the following defects: 1) The order of punching stations can be interchanged to a certain extent. The interchangeability of the position is restricted by other positions, and the flexibility of the layout plan is reduced; 2) a pair of molds can only correspond to one part, and the progressive die with the integral formwork structure is used when manufacturing other parts of the same type , due to changes in the shape or bending dimensions of the workpiece, the template and the concave and convex molds need to be redesigned and assembled, and the cost of the mold will increase accordingly

At the same time, this increases the difficulty of mold replacement, repair, and maintenance, and the rapid replacement of mold parts cannot be realized; 3) The template of the progressive die is easily deformed and warped due to the influence of thermal stress during the high-speed stamping process. The thermal deformation increases with the increase of the length, which leads to the increase of the cumulative error of feeding and affects the forming accuracy of the part

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