使用普通虎钳时,工件的夹紧力越大,或者钳口张开越大,夹紧力的反作用力引起的工件上翘现象(图1)就越明显。因而在机械加工时,粗加工和精加工必须分开进行,使加工工序复杂化。此外它还直接影响精密模具、工卡具之类工件的加工平行度和表面光洁度。 引起工件夹紧时的上翘现象,有 When using ordinary vise, the greater the clamping force of the workpiece, or the larger the jaws open, the more obvious the workpiece upturned by the reaction force of the clamping force (Figure 1). Therefore, during machining, roughing and finishing must be carried out separately, complicating the working process. In addition, it also directly affect the precision molds, jigs and pieces of the workpiece processing parallelism and surface finish. Caused when the workpiece clamping upturned phenomenon, there