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平口虎钳是铣床和刨床的主要附件之一,手动液压增力虎钳是普通螺杆虎钳的一个改进。一、工作原理与油压千斤顶的工作原理相同,通过油压的作用增加力量,达到夹紧工件的目的。结构如图1所示,油缸14用止动螺丝固定在大螺杆9上,小螺母21用螺丝固定在油缸上,推力杆8穿在大螺杆的通孔内,前端顶到活动钳口的里面。在夹紧工件时,旋转小螺杆22尾端的手柄25,小螺杆通过弹簧卡销19带动小螺母、油缸及大螺杆一起转动,并带动活动钳口6移动。当钳口5碰
One of the main accessories of milling machine and planer is the flat vise, which is an improvement of ordinary screw vise. First, the working principle and the hydraulic jack working principle is the same, increase the power through the role of hydraulic pressure, to achieve the purpose of clamping the workpiece. Structure shown in Figure 1, the cylinder 14 with a set screw on the large screw 9, a small nut 21 screwed to the cylinder, the thrust rod 8 threaded through the large screw hole, the front end of the movable jaw to the top . When the workpiece is clamped, the handle 25 at the tail end of the small screw 22 is rotated. The small screw drives the small nut through the spring latch 19 to rotate together with the oil cylinder and the large screw and drives the movable jaw 6 to move. When the jaw 5 touch