切割S95柴油机气缸套两端冷硬部分是机加工气缸套的第一道工序,我们设计了圆柱卡爪自动定心夹具(附图),与双活塞回转气缸配套使用,效果较好。夹具体4用螺钉9紧固在车床主轴上,当工件装入夹具后,操纵气动换向阀,双活塞回转气缸的两个活塞同时带动前楔轴8向左移动、后楔轴3向 Cutting the S95 diesel engine cylinder liner at both ends of the chilled part of the machining process is the first cylinder liner, we designed a cylindrical jaw automatic centering fixture (with photos), and double-piston rotary cylinder supporting the use of better results. The clamp body 4 is fastened to the lathe spindle by a screw 9. When the workpiece is loaded into the clamp, the pneumatic reversing valve is operated. The two pistons of the double-piston rotary cylinder simultaneously drive the front wedge shaft 8 to move to the left.