在Y7131齿轮磨床上磨制斜齿轮的时候,调整斜齿轮螺旋角是一项很重要的工作,一般要在光学分度头上进行。在单件或小批生产的条件下,每加工一种规格的斜齿轮都要经过一次调整,而调整起来又很不方便。因此辅助时间要高出机床实际工作时间3～4倍,以致影响生产或机修任务的按时完 When grinding helical gears on the Y7131 gear grinding machine, adjusting the helical angle of the helical gears is a very important task and is usually performed on an optical indexing head. In a single or small batch production conditions, each processing of a bevel gear specifications have to undergo an adjustment, and adjust very inconvenient. So the auxiliary time to be higher than the actual working time machine 3 to 4 times, resulting in production or machine repair tasks on time