一般的通用夾盤只能在辐射方向夾紧加工件。如果加工面a要求与加工面b平行时,用此通用夾盤则有缺点。当加工件放进夾具时,必须以b面来决定它的位置,也就是以手向b面推靠。如果要求高度的准确性,虽然是采用全新的夾盤也不容易办到,只要夾脚有极少的移动,加工件就不能够夾平;并且在夾紧时,夾脚必将稍有倾斜,如所示。 General common chuck can only clamp the workpiece in the radiation direction. If the machining surface a requires parallel with the machining surface b, this general purpose chuck has the disadvantage. When the work piece into the fixture, you must b to determine its position, that is, hand to push the b-side. If a high degree of accuracy is required, it will not be easy to use a brand new chuck. As long as there is very little movement of the foot, the workpieces will not be able to be clamped; and when tightening, the foot will be slightly tilted , As shown.