我厂每年有几万件轴类零件,调质后需车去0.5～1mm表皮。传统的三爪自定心卡盘装夹效率低使用该顶尖后,装卸工件均不用停车,该顶尖结构如图所示。用卡盘的三爪夹住顶尖体4外缘,把工件一端中心孔靠在该顶尖6上,用尾座顶尖顶工件另一端中心孔,使该顶尖6回缩,当工件端面与拨爪8接触时,压紧后动力由拨爪8传给工件,即可车削。车毕,松尾座顶尖,在弹簧3作用下工件脱离拨爪8,继续松尾座 I plant tens of thousands of shaft parts each year, after the car to go to 0.5 ~ 1mm skin. Traditional three-jaw self-centering chuck clamping inefficient use of the top, the loading and unloading of the workpiece without parking, the top structure as shown. With the claw claw clamped top body 4 outer edge of the center of one end of the work piece against the center of the top 6, with the other top end of the tailstock top center hole, so that the tip 6 retraction, when the workpiece end face and the claw 8 contact, after pressing the power from the claw 8 to the workpiece, you can turn. Car completed, Matsushita seat top, under the action of the spring 3 from the claw 8, to continue Matsusaka seat