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我厂在加工解放CA15汽车变速箱齿轮时,用图示心轴对齿坯进行精车,保证了齿坯较高的内、外圆同轴度和端面跳动。该心轴精度高,装卸方便、通用性好,适用于批量生产,加工时只需更换弹套10,就可精车出不同孔径的光孔或花健孔齿坯,并保证齿坯径向跳动在0.01mm以内,端面跳动在0.005mm以内。操作过程:将待加工齿坯置于心轴的夹紧位置上,用扳手转动压紧螺杆13,压紧螺杆与导套12端面摩擦而压迫导套作轴向移动(因导向销11的限制而使导套不能旋转),导套则压迫弹套10作轴向移动而将工件胀紧。同时,推力销5在弹簧6作用下缩入盘形心轴8的内孔。当齿坯车制完后,松开压紧螺杆13,
I plant processing CA15 car gearbox liberation, with the mandrel on the map for the fine car, to ensure a high gear tooth billet, cylindrical coaxiality and face beating. The spindle precision, easy loading and unloading, versatility, suitable for mass production, processing only need to replace the elastic sleeve 10, you can fine car out of different aperture optical aperture or Hua Jian hole billet, and to ensure that the tooth billet radial Beating within 0.01mm, end beating within 0.005mm. Operation process: Place the to-be-processed tooth blank in the clamping position of the mandrel, turn the pressing screw 13 with a wrench, and press the end face of the screw with the guide sleeve 12 to press the guide sleeve for axial movement (due to the restriction of the guide pin 11 So that the guide sleeve can not be rotated), the guide sleeve is pressed against the elastic sleeve 10 for axial movement to expand the workpiece. At the same time, the thrust pin 5 is retracted into the inner hole of the disk-shaped spindle 8 under the action of the spring 6. When the tooth blanket system finished, release the compaction screw 13,