Drop dies with movable bush fitting

Abstract

The invention provides a forging die with a movable bush fitting, belonging to the technical field of die forging technology, comprising an upper die seat, a lower die seat, a convex die, an upper ejector rod, an upper mandril, a movable bush fitting, a concave die, a lower ejector rod, a lower mandril and an embedded bolt; wherein, the movable bush fitting is fixedly connected with the bush fitting bolt which is arranged in the upper die seat; the upper mandril is arranged on the upper ejector rod; the upper mandril can move up and down in the convex die; the upper ejector rod is arranged at the center of the convex die; the concave die is arranged on a concave die cushion plate; the concave die is fixedly arranged on the lower die seat; the lower ejector rod is arranged above the lower mandril; the lower ejector rod can move up and down in the concave die; the lower ejector rod is arranged at the center of the concave die and is corresponding to the position of the upper ejector rod. The forging die with the movable bush fitting ensures the die forging quality, saves the die preparation material and prolongs the service life of the die.

Description

technical field [0001] The invention relates to a device in the technical field of die forging, in particular to a forging die with a movable insert. Background technique [0002] In the open die forging process of the prior art, in order to allow the flash groove around the forging die cavity to accommodate excess metal and at the same time play a buffer role when the upper and lower dies are pressed together, in addition, the flash groove can also prevent the metal from flowing out, forcing Metal fills the cavity. The design of the forging die must not only ensure the required shape and size of the forging, but also meet the performance requirements of the part during use. For several years, rigid flash slots have been used, which are not adjustable. Therefore, the metal flowing into the flash groove accounts for 20% to 50% of the weight of the entire forging, which greatly reduces the utilization rate of the material; at the same time, it is easy to cause insufficient f...

AI Technical Summary

Problems solved by technology

Although the structure of this technology is relatively simple, the flash groove in this technology is still non-adjustable rigidity, and the material saving range is only 10%. Redundant processing

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