Rotary indexing device

The utility model relates to a rotary dividing device which provides a structure that an oil seal cannot be damaged by external powder. The rotary indexing device includes: a rotating body including a main shaft rotatably supported in a housing hole of a frame via a bearing, and a table portion provided on one end side of the main shaft and to which a workpiece or a jig to which the workpiece is mounted; an oil seal that is provided in a gap portion that is a portion of the space between the frame and the rotating body, said portion being closer to one end than the bearing; a drive mechanism that rotationally drives the rotating body; and a holding mechanism for holding the rotating body at an angular position indexed during indexing processing, in the rotary indexing device, a dust seal is provided on the side opposite to the bearing side with respect to the oil seal and in the gap portion. 本实用新型涉及提供油封不会因来自外部的粉末而受到损伤的结构的旋转分度装置。上述旋转分度装置具备：旋转体，其由在框架的收纳孔内经由轴承以能够旋转的方式被支撑的主轴以及设于主轴的一端侧且安装工件或者安装工件的夹具的工作台部构成；油封，其设于作