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我厂每年有几十万件大小不等的薄壁碟形零件需要齐端面,因为是簿壁件无法实现外圆夹紧。若采用心轴式夹具,用螺母压紧工件加工,则效率太低,适应不了大批量生产的需要。因此,采用气动活动顶尖与心轴顶压工件的夹紧方法。顶压工件时,手持工件外圆处,悬置在心轴与顶针头之间,启动气阀,气缸推动头夹紧工件,由于工件外圆与顶头及心轴外径相差
I plant each year hundreds of thousands of thin-walled disc-shaped parts of different sizes need to end face, because the book wall can not be achieved cylindrical clamping. If the use of mandrel-type fixture, with the nut pressing the workpiece processing, the efficiency is too low, can not meet the needs of mass production. Therefore, the use of pneumatic top and top spindle mandrel clamping the workpiece clamping method. When the workpiece is pressed against the workpiece, the outer part of the workpiece is suspended between the spindle and the thimble. The air valve is actuated and the cylinder pushes the workpiece to clamp the workpiece. Since the difference between the outer diameter of the workpiece and the outer diameter of the spindle and the spindle