CB3463六角车床液压卡盘采用的是固定油缸,如图1所示。因为油缸与活塞都不随主轴旋转,只有拉杆转动,所以固定螺母1极易松动,经常自行松脱而需停车修理,以致影响生产。以后生产厂又在CB3463-1产品上改用旋转油缸(见图2),虽较前有所改进,但从使用和维修的角度看,仍有不足之处。现 CB3463 hex lathe hydraulic chuck using a fixed cylinder, shown in Figure 1. Because the cylinder and the piston are not with the spindle rotation, only the rod rotation, so a very easy to loose fixed nut 1, often free parking and repair, which affects production. After the production plant and CB3463-1 products in the use of rotating cylinder (see Figure 2), although the previous improvements, but from the perspective of the use and maintenance, there are still inadequacies. Now