我厂生产的东方红—28型拖拉机上的油门踏板,原结构如图1所示。它用一个平头销轴通过两侧的φ10孔安装在右半边地板的长方形孔内,下端2孔φ6用于挂弹簧和油门拉杆。原结构是1.8厘米厚08?钢的冲压件,需用4套冲模在压力机上操作5次才能生产出一个来。工艺??落料并冲2孔φ6,?翻两侧边高15和6,③压弯成形115°, I plant production of Hongfan-28 tractor accelerator pedal, the original structure shown in Figure 1. It uses a flat pin shaft through the φ10 holes on both sides of the installation in the right half of the rectangular hole in the floor, the lower two holes φ6 for hanging spring and throttle lever. The original structure is 1.8 cm thick 08? Steel stamping parts, the need for four sets of die on the press operation 5 times to produce a come. The process of blanking and punching 2 holes φ6, turn both sides of high 15 and 6, ③ bending forming 115 °,