Forging and inclined window hole punching composited die

Abstract

The invention belongs to the technical field of forging dies, and particularly relates to a forging and inclined window hole punching composited die. The composite die comprises an upper die seat, a connecting sleeve, an upper die sliding sleeve, a pressing plate, a window inclined punch, a central punch, a first connecting screw, a first spring, a second connecting screw, a second spring, a hydraulic auxiliary system, a lower de and a bottom plate. The bottom surface of the pressing plate of the composite die is a plane, so that deformation of the front forming surface is avoided; meanwhile,hydraulic power is added to the window inclined punch, the pressure for inclined hole punching is increased, and the quality problem is avoided; besides, the demolding force is increased, by the aid of a multi-split synchronous hydraulic device, synchronization of multiple window inclined punches can be well realized, simultaneous demolding of the punches can be realized, the processes of punchingof hub blank inclined windows and separation from the window inclined punches are performed simultaneously in the very small space of a wheel, and the structure is ingenious.

Description

technical field [0001] The application relates to the technical field of forging dies, in particular to a composite die for forging punching oblique window holes. Background technique [0002] Since the existing forging wheel mold can only punch a single center straight hole of the blank, the metal in the blank’s inclined window needs to be processed by machining, which brings troubles in the follow-up process, increases the production cycle and increases the cost. . Whether it can be realized in the very small space of the wheel and realize simultaneous punching of the oblique window of the hub blank has become a very difficult subject to realize. The invention patent with the publication number CN104722694A discloses a forging wheel composite die, which can complete the tasks of punching the center hole, punching the inclined window, and rim reaming at one time, which can reduce the subsequent processing time and unnecessary processes of the wheel blank. The production c...

AI Technical Summary

Problems solved by technology

[0002] Since the existing forging wheel mold can only punch a single center straight hole of the blank, the metal in the blank’s inclined window needs to be processed by machining, which brings troubles in the follow-up process, increases the production cycle and increases the cost.

Whether it can be realized in the very small space of the wheel, and the oblique window of the hub blank can be punched at the same time has become a very difficult issue.

The invention patent with the publication number CN104722694A discloses a forging wheel composite die, which can complete the tasks of punching the center hole, punching the inclined window, and rim reaming at one time, which can reduce the subsequent processing time and unnecessary processes of the wheel blank. The production cycle of the wheel is shortened, and the time occupied by equipment and manpower is reduced. However, this mold cannot forge wheel blanks that do not require rim reaming. The pressure surface of the upper mold is not flat, and it is easy to cause deformation of the forming surface under positive pressure. The pressure of the inclined hole of the window oblique punch is not large, which may easily cause problems such as unsmooth hole and inconsistent operation of the punch. In addition, the demoulding structure of the mold only uses the spring force to demould, and the demoulding ability is limited, which is not conducive to simultaneous demoulding

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