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苏朕列宁格勒某风动工具厂,制造并使用了一种在铣床上跟分度头联用的,顶紧工件用的特殊顶尖座。顶尖座固定在工作台上。工具的结构如附图所示,1是本体。2是带燕尾的滑枕。3是顶尖。4是固定螺钉。5是齿条,镶在滑枕2上。6是齿轮。齿条、齿轮的模数为2,是45°右旋斜齿。7是手轮。转动手轮7,使齿轮齿条嚙合并旋转,推动滑枕移动,机构的锁紧是当另件顶紧在二顶尖上后,因斜齿关系使齿轮轴产生轴向移动,因而锥体8和本体1上的锥孔锁紧。9、10、11、为档销限制滑枕的冲程。12是档板。13是毡垫。顶尖高度应和分度头顶尖同高。
One of the wind-driven tool factories in Leningrad, the Soviet Union, made and used a special top seat for top-loading workpieces in conjunction with a dividing head on a milling machine. The top seat is fixed on the workbench. The structure of the tool as shown in the figure, 1 is the body. 2 is a dovetail ram. 3 is the top. 4 is a set screw. 5 is a rack mounted on the ram 2. 6 is the gear. Rack, gear modulus 2, is 45 ° right-handed helical gear. 7 is the hand wheel. Turn the handwheel 7 so that the rack and pinion engages and rotates to push the ram to move. When the mechanism is locked, the other part is tightly pressed against the two tops, and the gear shaft is axially moved due to the helical tooth relationship. Therefore, the cone 8 And the body 1 taper hole locking. 9,10,11, for the gear limit ram stroke. 12 is the baffle. 13 is a felt pad. The top height should be the same as the top of the index head.