在机械手中,应用摇摆油缸要比用直线油缸通过齿条齿轮带动机械手旋转,结构简单、轻巧美观。但是,出于摇摆油缸的动片与缸体之间配合精度要求高,加工比较困难,如果精度达不到要求,就会使泄漏严重,影响正常运转,从而,阻碍了摇摆油缸的推广应用。为了解决摇摆油缸的泄漏问题,除可改进加工方法,保证加工精度外, In the mechanical hand, the application of rocking cylinder than the use of straight-line cylinder driven by rack and pinion gear rotation, the structure is simple, lightweight and beautiful. However, because of the high accuracy of the cooperation between the swinging cylinder and the cylinder, the machining is difficult. If the accuracy is not met, the leakage will be serious and the normal operation will be affected, which hinders the popularization and application of the swinging cylinder. In order to solve the problem of swing cylinder leakage, in addition to improving the processing methods to ensure machining accuracy,