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由于冷镦机是在重载荷的情况下,连续生产,加之自动化程度较高,而机构运动大部分由曲轴或凸轮控制作周期性的往复运动或摆动,以致由加速度而引起的作用力及撞击力很大,并且冷镦机的机构及主要零件的材料选定还有不完善之处,因此,在使用中容易损坏。我们在生产和维修的实践中对冷镦机作了一些改进,整理介绍于下。一、主传动部分的改进关于冷镦机的镦锻速度,一般大型冷镦机(螺钉杆部直径在10毫米以上)每分钟的生产率为60～70件(指双击冷镦机),滑块行程次数为120～140次/分。根据冷镦工艺要求,始镦速度在0.4～1米/秒之间。此数据在使用中上下
As the cold heading machine is under heavy load, continuous production, coupled with a high degree of automation, and most of the body movements by the crankshaft or cam control for periodic reciprocating motion or swing, so that the acceleration caused by the force and impact Strong force, and the cold heading machine parts and main parts of the material selection and imperfections, therefore, easy to damage in use. We in the production and maintenance practices of the cold heading machine made some improvements, finishing introduced in the next. First, the improvement of the main transmission part Upsetting speed of the cold heading machine, the general large-scale cold heading machine (screw rod diameter of 10 mm or more) per minute productivity of 60 to 70 (refers to double-headed cold heading machine), the slider The number of trips is 120 ~ 140 beats / min. According to the requirements of cold heading process, the initial heading speed is 0.4 ~ 1 m / s. This data is up and down in use