Multi-station automatic punching machine

Abstract

The invention relates to a multi-station automatic punching machine. The multi-station automatic punching machine comprises punching air cylinders, connecting plates, telescopic devices, outer dies, inner dies, a punching table, containing grooves, lower cavities and a punching seat; the punching air cylinders are arranged on the punching seat, the punching seat is arranged on the left side of thepunching table, the top ends of the punching air cylinders are installed on the connecting plates, the telescopic devices are installed at the lower end of the connecting plates, the lower ends of the telescopic devices are installed on the outer dies, the inner dies are arranged in the outer dies, the containing grooves are uniformly formed in the punching table, and the lower cavities are arranged in the containing grooves through bolts. The multi-station automatic punching machine can solve the problem that after a punching die is used for punching and forming a metal plate, elastic deformation exists inside the metal plate, when the punching die leaves the metal plate, with the disappearance of external force, a U-shaped part after forming tends to return to the original state, resulting in the shape of the U-shaped part after forming can not be completely consistent with the shape of the lower die, and the situation of punching springback occurs.

Description

technical field [0001] The invention relates to the field of punch processing, in particular to a multi-station automatic punch. Background technique [0002] Punch press is a kind of stamping press, which is mainly aimed at the processing of plates. Punch presses are widely used in stamping and forming of electronics, communications, computers, household appliances, furniture, vehicles, automobiles, motorcycles, bicycle hardware parts, etc. Among them, U-shaped parts belong to the category of stamping parts. The punch press can stamp the metal sheet through the stamping die to obtain U-shaped parts. However, the following problems often exist in the processing of U-shaped parts: [0003] 1. After the stamping die stamps the metal sheet, there is elastic deformation inside the metal sheet. When the stamping die leaves the metal sheet, with the disappearance of the external force, the formed U-shaped part tends to return to its original shape, resulting in incomplete shape. ...

AI Technical Summary

Problems solved by technology

[0006] The invention can solve the problem of elastic deformation inside the metal sheet after the stamping die stamps the metal sheet during stamping. When the stamping die leaves the metal sheet, with the disappearance of the external force, the U-shaped part after forming has a tendency to return to its original shape, resulting in forming The final shape cannot completely match the shape of the lower mold, resulting in stamping springback. The U-shaped part after stamping is difficult to take out manually due to its fit with the lower mold.

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