Refined extrusion die for manufacturing output shaft

一种制作输出轴的精挤压模具

Abstract

The utility model provides a refined extrusion die for manufacturing an output shaft. The die is formed by an upper die and a lower die which are matched with each other. The lower die comprises a lower die core and a lower die fixing sleeve, wherein the center of the top of a lower die core main body is provided with a shaft head cavity which is open upwards, the shaft head cavity is connected with a multistage step-shaped lower die cavity penetrating the bottom of the main body, a lower die fixing sleeve inner ring sleeves the periphery of the lower die core, a lower die fixing sleeve outer ring sleeves the upper portion of a lower die outer sleeve, a lower die base sleeves the lower portion of the lower die outer sleeve, the center of the lower die base is provided with a lower die push rod cavity communicated with the lower die cavity, the bottom of the lower die base is shrunk to form a step ring, and the step ring is sleeved with a lower die fixing base. According to the technical scheme, the refined extrusion die is high in processing efficiency, low in product manufacturing cost and free of cutting and material loss; a forging die abrades slowly, and the product dimensional accuracy is guaranteed easily.
本实用新型提供一种制作输出轴的精挤压模具,所述模具由相互配合的上模和下模构成,所述的下模包括有下模型芯、下模固定套、其中,下模型芯主体顶部中心设有向上开口的轴头腔,轴头腔与贯穿至主体底部的多级阶梯状下模型腔相连接;下模固定套内环套装在下模型芯外周面上,下模固定套外环套装在下模外套上部;下模底座套装在下模外套下部,下模底座中心设有与下模型腔连通的下模顶杆腔,下模底座底部收缩形成阶梯环,该阶梯环套装在下模固定座内。本方案具有加工效率高,产品制造成本低,无切削产生,材料无损耗;锻造模具磨损缓慢,产品尺寸精度易于保证。

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