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为了满足农机产品不断更新换代的需要,缩短试制生产周期,确保多品种单件、小批量生产农业机械零件的高精度、低成本,这里介绍一种行之有效的通用可调钻模。该钻模(图示)用于加工圆盘类、法兰端盖和小型箱体(大孔)零件上圆周等分孔。工件安装在带有分度装置的三爪卡盘内,自动定心夹紧。来回扳动手柄6,便可实现分度。转动手柄7,使齿轮4带动齿条3,从而使钻模板1上下移动,以调整其距加工面的位置。转动手柄5,通过丝杆带动钻模板1前后移动,从刻度标尺的示值,来确定钻孔的径向位置尺寸。根据不同工件的孔直径来更换快换钻套2。
In order to meet the needs of continuous upgrading of agricultural machinery products, shorten the trial production cycle, to ensure that more varieties of single-piece, low-volume production of agricultural machinery parts of high precision, low cost, here introduced an effective universal adjustable drilling. The die (pictured) is used to create circular bisected holes in the disc, flange end caps, and small box (macro) parts. The workpiece is mounted in a three-jaw chuck with indexing device and is self-centering and clamping. Pull handle 6 back and forth, you can achieve indexing. Rotating the handle 7 causes the gear 4 to drive the rack 3 to move the drilling template 1 up and down to adjust its position from the machining surface. Turn the handle 5, through the lead screw to move the template 1 back and forth, from the graduation scale value, to determine the size of the radial position of drilling. According to different workpiece hole diameter to change quick change drill sleeve 2.