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我厂生产的各种型号汽车变速器总成中都有两到三种规格的卡环,其中之一的形状如图1所示。原来我厂生产的各种规格的卡环是采用钢板冲压或棒料车削而成的.这两种工艺方法的缺点是材料的浪费较大,材料利用率仅20％左右,而且产品飞边大,又难于锉削.针对这种情况,我们采用钢丝滚压成型的原理,试制了一台卡环滚压机,将65Mn钢丝用压轮压扁后通过滚轮滚压成形,然后一个个铣切下来即为成品.滚压成形的卡环材料利用率接近100％;工人的
I plant the various models of automotive transmission assembly has two or three specifications of the ring, one of the shape shown in Figure 1. The original factory production of various specifications of the card ring is the use of steel stamping or bar turning made of the shortcomings of these two methods is the material waste, material utilization is only about 20%, and the product large flash , And difficult to filing. In view of this situation, we use the principle of wire rolling, trial production of a card ring roller press, the 65Mn wire crushed by the roller after the roll forming, and then milling one by one Down is the finished product. Ring forming the utilization of the material close to 100%; worker’s