论文部分内容阅读
我厂生产的SS_3型电力机车年生产批量大,产品质量要求高。该车的车体主件方枕梁支座板,属大型关键零部件之一,它采用厚16毫米、宽980毫米、长1152毫米的A_3钢板压制成形。原有支座板模具一套,但结构欠合理,为一次成形两件产品,模具笨重,在使用中发现以下问题:(1)一次成形两件,毛料大而长,不易搬动,在大电热炉中加热困难,后只好采用冷压成形。(2)原压模无顶料装置,产品很重,无顶料机构不易出料,压后的工件靠手工撬动,劳动强度大。(3)冷压回弹较大,压出后往往保证不了图纸尺寸,
SS_3 electric locomotive produced by our factory has large production volume and high product quality requirements. The car’s main body side bolster support plate, is one of the key components, it is 16 mm thick, 980 mm wide, 1152 mm long A_3 steel plate forming. The original support board a set of mold, but the structure is not reasonable, as a molding two products, the mold bulky, found in the use of the following issues: (1) forming a two, large and long wool, not easy to move in large Heating furnace heating difficulties, had to use cold forming. (2) The original die without top device, the product is very heavy, no top feeding mechanism is not easy to material, after pressing the workpiece by hand leveraging, labor-intensive. (3) Cold pressure rebound larger, after pressing out often can not guarantee the drawing size,