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为了克服车削刮板输送机滚筒内孔定位不准、工件只能低速切削的问题,通过采用紧固件做夹具体的理想轨道,利用滚动轴承的滚动代替滑动,有效地减小了工件与夹具体之间的摩擦.并极大地提高了加工刮板输送机滚筒内孔主轴的速度,保证了加工质量,提高了加工效率。但在实际加工滚筒内孔的过程中由于紧固件是圆环型,加工完工件的一端需拧松锁紧顶丝后取下紧固件,待工件掉头安装后再装上紧固件并拧紧锁紧顶丝,这样就存在安装与拆卸紧固件比较费时的问题。同时工件一端在机床上用四爪卡盘定位,工件呈悬臂状,在工件自身的重力作用下,加工端肯定向下倾斜,尽管采取相关措施,但工
In order to overcome the problem of inaccurate positioning of the inner hole of the rotary scraper conveyor drum and the low speed cutting of the workpiece, the ideal orbit of the clamp body is made by adopting a fastener, the rolling of the rolling bearing is used instead of the sliding, thereby effectively reducing the work piece and the clamp body Between the friction and greatly enhance the machining scraper conveyor roller spindle speed to ensure the processing quality and improve the processing efficiency. However, in the actual processing of the drum inner hole as the fastener is a circular ring, one end of the finished workpiece to be loosen the locking top wire after the removal of fasteners, to be unwound after the installation of the workpiece and then install the fastener Tighten the locking top wire, so there is the installation and removal of fasteners more time-consuming problems. At the same time, one end of the workpiece is positioned on the machine tool with a four-jaw chuck, and the workpiece is in a cantilever shape. Under the gravity of the workpiece itself, the processing end is certainly inclined downwards. In spite of the relevant measures,