Ring forge piece punching and cutting composite type mould

Abstract

The invention relates to a ring forge piece punching and cutting composite type mould which is used on a mechanical press, in particular to the ring forge piece punching and cutting composite type mould. In the conventional mechanical manufacturing industry, inner hole punching and outer edge cutting in a forging and forming process of a forging ring of a transmission chain are performed in two steps, the production efficiency is low and the cost is high. The mould consists of an upper mould, an ejector, a lower mould and a material returning and outer burr removing part, wherein an upper mould plate is provided with a guide sleeve, connecting rods and an edge cutting punch head; a lower mould plate is provided with guide posts, an edge cutting female die seat, an edge cutting female die, a punching punch head seat and a punching punch head; a movable plate is provided with a connecting sleeve, an ejector seat and an ejector head and positioned and guided by two guide posts and the guide sleeve; and four connecting rods drive the connecting sleeve, the movable plate and the ejector part to rise so as to eject a finished punched workpiece. The composite mould is matched with a guide post guide sleeve structure, so accurate positioning of the upper mould, the lower mould and the ejector part is realized, the dimensional accuracy of a product is guaranteed, and the mould is suitable for simultaneous edge cutting and punching of a ring forge piece.

Description

Technical field [0001] The invention relates to a ring-type forging punching composite tire used on a mechanical press, in particular to a ring-type forging punching composite mold, which is used for the forged ring-type parts of a transmission chain in the machinery industry after simmering The punching and trimming processes are completed simultaneously. Background technique [0002] At present, the traditional forging ring forging process of the transmission chain in the machinery manufacturing industry is braising, trimming and punching. The punching of the inner hole and the cutting of the outer edge are carried out in two steps, which can satisfy some forgings that require less stringent ring wall dimensional accuracy. It is difficult to guarantee some forgings that require strict ring wall dimensional accuracy and center pitch dimensional accuracy. Often, the amount of processing left in the inner hole is guaranteed by chip processing, resulting in low production efficien...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low accuracy of two-time punching of the outer edge and inner hole of ring forgings and low processing efficiency of ring inner holes, the present invention provides a compound punching method in which ring forgings are punched and trimmed once on a mechanical press. Mold, to achieve high-precision, high-efficiency punching of ring forgings, and has versatility within a certain range

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