自动门
成都自动门:板材的折边加工
发布时间:2012/11/26
           旋转门用的较多的材料是薄板材。板材有的用于旋转门的骨架,有的用于上码头的下码头,用的较多处是不锈钢和铝的装饰板。这些板材根据结构的需要必须折边,折成不同的截面形状。
(1)折边特点。折边就是把工件的边缘弯成一定的倾角或一定的形状,常用于薄板工件。折边的作用主要是为了提高结构件的强度和刚度。
(2)折边模具。折边一般在专用折边机上进行,目前常用的设备有液压压力成形机和电动折边机。折边时,在折边机上配有专用或通用 的模具。下模在折边机的工作平台上,上模则固定在折边机的活动柱子上;板料放在下棋上,利用上模向下运动时的压力来完成折边操作。
板材的折边弯曲的模具根据折边的形状设计,上模的端部是V形,V形的状况有较小的圆弧半径,这可以保证表面和质量,只有较小的反弹。下模的四个工作面会形成四个V形槽,四个面的V形槽要分别制出不同规格尺寸 的V形槽,要能弯制锐角或钝角的工件。对于开关的折边件,要设计运用的折边模具。险上、下模具外,时要有挡板,挡板用于限制弯曲时自由端的限位。

(3)折边的操作工艺。折边要按一定的顺序进行:首先根据图纸上工件的开关和尺寸确定折边机,再设计合适的上、下模具,在折边前先在原料上划上折弯线再进行折边。折弯的规律是先弯外、后折内。


                                                                                                             --成都旋转门

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