Symmetrical multi-cavity discharging technology

Abstract

The invention relates to a symmetrical multi-cavity discharging technology. The working object of the discharging technology is a flat belt, and the formed products are flat annular columnar workpieces punched from the belt. A shearing step is increased before punching in the technology, namely the shape of each workpiece is previously sheared, and workpiece blanks are obtained, a gap is reserved between the two adjacent workpiece blanks in each column in the machining and advancing direction of the belt, and the belt can absorb micro expansion, so that alignment of the workpieces during machining with a mold is facilitated, the qualification rate is improved, and high section quality and flatness of the workpieces are obtained. Semi-cutting can be adopted when the outer edges of the workpieces are punched, so that the flatness of the surfaces of the workpieces is further improved; and a small quantity of connecting bands can be reserved only among the workpiece blanks during shearing, so that the expandable space of the workpiece blanks is increased, and the influence of stretching of the belt on the positions of the workpieces is further reduced.

Description

technical field [0001] The invention relates to a symmetrical multi-cavity discharge process, in particular to a symmetrical multi-cavity discharge process of shearing first and then punching. Background technique [0002] The traditional symmetrical multi-cavity discharge process mainly includes punching, chamfering, punching and blanking. Among them, punching and punching are both a stamping process that uses the upper and lower dies to separate the strips under the action of a press. The strip is separated into two parts, namely the punched part and the holed part. If the purpose is to produce a punched part with a certain shape and size, this process is called the blanking process, and the remaining part with holes is waste. ; Conversely, if the purpose is to produce an inner hole of a certain shape and size, at this time, the punched part becomes waste, and the part with holes is the workpiece. This process is called the punching process. During punching and punching ...

AI Technical Summary

Problems solved by technology

During the punching or punching process, the material strip at and around the workpiece is subjected to the force to generate corresponding stress, and a certain degree of bending and tensile deformation occurs, which affects the flatness of the workpiece surface and the quality of the section, and at the same time causes the strip to a certain degree If the length becomes longer, the position of the original workpiece moves while the position of the mold itself remains unchanged, so the mold may not be accurately aligned with the position of each workpiece, and it is easy to process waste products

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