U形90°自承位弯曲回弹角度可调节模具的研究与设计
Study and Design of U Type 90° Holding Itself Bending Back Spring Adjustable Die
刘庚武
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作者单位：（湖南铁道职业技术学院 机电工程系，湖南 株洲412001）
中文关键字：U形90°弯曲； 自承位支撑； 角度调节； 弯曲半径调节； 回弹测试； 模具
英文关键字：U type 90° bending; holding itself; angle adjusting; bend radius adjusting; back spring testing; die
中文摘要：通过对U形90°形弯曲回弹的讨论，设计一个U形弯曲回弹测试模具。该项研究与设计，旨在能够事先不需要计算就可以掌握该材料的回弹性能。模具采用T形滑座与弯曲角两边的压板调节，从而达到在一定范围内调节弯曲角度的目的，弯曲半径的调节主要是通过更换弯曲半径的调节轴来实现。通过该模具确定该材料的回弹值，然后再进行模具设计，为模具设计后的试模和修模减少了很大的工作量，为模具设计者带来了极大的方便。
英文摘要：A kind of U type 90°bending back spring testing die was set up by discussing bending back spring. The back spring of material could be mastered through setting up V Bending back spring adjusting test model without prior calculation. In order to adjust the bending angle, the T type slide seat and bending press plate were used. The adjusting of bending radius was implemented by replacing the adjusting axis of bending radius. At first, the back spring value of the material on the die was determined, then the die was designed. So a lot of work for repairing and testing die were reduced, it might bring the most convenience for designers.