The invention provides a method for bending arc-initiating plate of stamping forming of pre-plated copper steel strip, which relates to the field of die technology, including the following steps: bending the upper part of the pre-plated copper steel strip to 162 degrees of bending angle of the product; bending the pre-plated copper steel strip to 6.4 mm by Z-folding down; bending the middle part of the pre-plated copper steel strip to 60 degrees upward, bending the bending edge after bending is only 7.5mm higher than the base surface; and bending the lower part of the pre-plated copper strip Bend 40 degrees downward and move the benchmark point of step 5 downward to avoid bending edge higher than the benchmark when step 4 bends 100 degrees upward; bend 100 degrees upward in the middle of the pre-plated copper strip to reduce the bending angle of step 6; shape the 60 degrees bending angle of the pre-plated copper strip into place with an angle of 10 degrees between the horizontal X-axis; bend the 56 degrees bending angle of the pre-plated copper strip into place to get the final micro-break. The arc plate in the middle of the shutdown. The method of the invention can reduce the stroke of the slide block of the punch, has strong matching with the punch, and achieves no abrasion and bending.
【技术实现步骤摘要】
一种预镀铜钢带冲压成型引弧板折弯方法
本专利技术涉及模具
,尤其是一种预镀铜钢带冲压成型引弧板折弯方法。
技术介绍
微断开关中的引弧板形状如图1所示,其弯折高度达到19.4mm,故要求冲床滑块行程达到60mm,而一边用于连续生产的模具冲床滑块行程≤40mm,因此,模具匹配性较差。并且引弧板材料厚度为0.8mm,由于材料较软,在进行滚镀铜时,产品大量变形,导致成本增加。因此,后续则选用预镀铜钢带,但是预镀铜钢带如采用原有折弯方式,如图2所示,在步骤3折弯90°时,折弯高19.9导致冲床滑块行程要求需60mm以上与冲床匹配性差,且会刮掉预镀铜钢带表面的铜。故需要一种新的折弯工艺方法,解决擦伤及成型时要求冲床滑块行程高的问题。
技术实现思路
本专利技术的目的是为了解决现有技术中存在的缺点,从而提出的一种预镀铜钢带冲压成型引弧板折弯方法,降低冲床滑块行程,与冲床的匹配性强,并实现无擦伤折弯。本专利技术具体采用如下技术方案实现:一种预镀铜钢带冲压成型引弧板折弯方法,对预镀铜钢带依次折弯,形成微断开关中的引弧板,具体折弯步骤如下:步骤1、将预镀铜钢带的上部向上折弯产品162°折角;步骤2、将预镀铜钢带向下打Z折,折高为6.4mm;步骤3、将预镀铜钢带的中部向上折弯60°角,折弯后折弯边仅高出基准面7.5mm;步骤4、将预镀铜钢带的下部向下折弯40°角,将步骤5的折弯基准点向下移动避免步骤4向上折100°时折弯边高出基准面;步骤5、将预镀铜钢带的中部向上折弯100°角,减少步骤6的折弯角度;步骤6、将预镀铜钢带60°的折角成型到位,与水平X轴有10°的夹角;步骤7、将 ...
【技术保护点】
1.一种预镀铜钢带冲压成型引弧板折弯方法,对预镀铜钢带依次折弯,形成微断开关中的引弧板,其特征在于,具体折弯步骤如下:步骤1、将预镀铜钢带的上部向上折弯产品162°折角;步骤2、将预镀铜钢带向下打Z折,折高为6.4mm;步骤3、将预镀铜钢带的中部向上折弯60°角,折弯后折弯边仅高出基准面7.5mm;步骤4、将预镀铜钢带的下部向下折弯40°角,将步骤5的折弯基准点向下移动避免步骤4向上折100°时折弯边高出基准面;步骤5、将预镀铜钢带的中部向上折弯100°角,减少步骤6的折弯角度;步骤6、将预镀铜钢带60°的折角成型到位,与水平X轴有10°的夹角;步骤7、将预镀铜钢带56°折角折弯到位,得到最终的微断开关中引弧板。
【技术特征摘要】
1.一种预镀铜钢带冲压成型引弧板折弯方法,对预镀铜钢带依次折弯,形成微断开关中的引弧板,其特征在于,具体折弯步骤如下:步骤1、将预镀铜钢带的上部向上折弯产品162°折角;步骤2、将预镀铜钢带向下打Z折,折高为6.4mm;步骤3、将预镀铜钢带的中部向上折弯60°角,折弯后折弯边仅高出基准面7.5mm;步骤4、将...
【专利技术属性】
技术研发人员:黄拥军,梁勇,刘保贵,
申请(专利权)人:厦门炜霖电子科技有限公司,
类型:发明
国别省市:福建,35
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