切向鍵聯(lián)接：它由兩個普通楔鍵組成。其上下兩面（窄面）為工作面，其中之一面在通過軸心線的平面內。工作面上的壓力沿軸的切線方向作用，能傳遞很大的轉矩。

Tangent key join: it cists of two common wedges. Both sides of the upper and lower sides (narrow surface) are working faces, one of which is in the plane of the axis of the axis. The pressure on the working face acts along the direction of the shaft and transmit a large torque.

勝過機用虎鉗的柔性虎鉗，在裝夾中能有效防止工件的翻轉、傾斜，克服了機用虎鉗因配合間隙大導致工件受力不均、加工發(fā)顫等現(xiàn)象；解決了現(xiàn)有輕型、精密工件加工時裝夾不可靠的問題。

Flexible than vice machine vise, the clamping can effectively prevent the workpiece turning and tilt, overcome the machine vise for clearance to workpiece uneven stress, etc. to solve the phenomenon of processing tremble; the existing light and precision workpiece clamping reliability of the fashion。

裝夾后產品靠近活動鉗口附近容易上翹、抬起，多次裝夾一致性差。傳統(tǒng)機用虎鉗的螺旋副間隙較大，在使用中會產生較大振幅的振動；而活動座和虎鉗體之間的滑動接觸面較大，采用的間隙也較大。

After the clamping, the product is easy to  and lifted near the movable jaw, and the cistency of the clamping is poor many times. The spiral pair clearance of traditional machine vice is bigger, which will cause large amplitude vibration in use. The sliding contact between movable seat and jaw vice body is larger, and the gap used is bigger.