Press machine high in machining precision

Abstract

The invention discloses a press machine high in machining precision. A base is included. The upper end of the base is fixedly connected with an upper cover plate through two supporting plates. A hydraulic cylinder is fixedly connected to the upper end of the upper cover plate. The two supporting plates are symmetrically arranged on the two sides of the lower end of the hydraulic cylinder. The telescopic end of the hydraulic cylinder penetrates through the upper cover plate and is fixedly connected with a punching head. The lower end of the punching head is fixedly connected with a punching buffering device. The two sides of the punching head are symmetrically provided with guiding columns corresponding to the punching buffering device in position. The upper ends and the lower ends of the two guiding columns are fixed to the opposite side walls of the upper cover plate and the base correspondingly. The press machine is compact in structure, the punching buffering device is arranged at the lower end of the punching head and matched with a damping mechanism, damping buffering and protection functions are achieved for to-be-punched accessories and other mechanical structures on the press machine in the punching process, and meanwhile the punching precision is improved under the guiding action of the guiding columns.

Description

Technical field [0001] The invention relates to the technical field of presses, in particular to a press with high processing accuracy. Background technique [0002] The press (including punches and hydraulic presses) is a versatile press with exquisite structure, which can be widely used in cutting, punching, blanking, bending, riveting, and forming processes. The pressure causes the metal fittings to undergo plastic deformation and fracture to be processed into parts. Existing presses generally use hydraulic cylinders to drive the stamping head to perform stamping. The auto parts to be stamped are placed at the lower end of the stamping head. During the stamping process, the stamping head directly contacts the parts to be stamped. When it is too long, it will often cause damage to the end face of the stamping parts, and also cause stamping damage to the pressing head and other mechanical structures on the press. When the service life is too long, the processing accuracy will b...

AI Technical Summary

Problems solved by technology

Existing presses generally use a hydraulic cylinder to drive the stamping head for stamping. The auto parts to be stamped are placed at the lower end of the stamping head. During the stamping process, the stamping head is in direct contact with the parts to be stamped. When it is too large, it will often cause damage to the end face of the stamping parts, and at the same time, it will cause stamping damage to the stamping head and other mechanical structures on the press. When the service life is too long, the processing accuracy will be reduced.

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