我厂的车床中,大多是轻型皮带车床,这种车床本身很小,不能进行高速切削。如果将车头转速提高,就会产生以下的毛病:1)车头转速提高后,车床摇动得很厉害;2)车头铜轴承会产生高热,时间一长,有时会使车头轴承和车头主轴咬住;3)车头转速高时,车刀容易爆裂(因为皮带受力过大而滑下)。所以在这种车床上,只能用低的速度来切削,生产效率也就很低。我厂杨明生同志根据这种情况,提出了改装车床的建议,经过一个时期的 I plant lathes, mostly light belt lathe, this lathe itself is small, can not be high-speed cutting. If you increase the speed of the front, it will have the following problems: 1) After the front speed increase, the lathe shakes very much; 2) the front of the copper bearing will produce heat, over time, sometimes make the front bearing and the front spindle bite; 3) When the front speed is high, the tool is easy to burst (because the belt is too large and slide down). Therefore, in this lathe, only low speed to cut, production efficiency is very low. My factory Comrade Yang Mingsheng according to this kind of situation, put forward the suggestion that the modification lathe, after a period of