液压阀外形多半是长方体(图1)。对于这类液压阀体的调头车加工,其夹紧通常采用压板和螺钉拧紧形式,生产效率低。为此,我厂自制了能一次夹紧,并具有一定通用性的阀体调头车夹具(图2)。经使用证明,操作方便,生产效率高。现将其结构原理介绍如下。 将工件一端已加工的孔套入芯轴4, Hydraulic valve shape is mostly rectangular (Figure 1). For this type of hydraulic valve body turning car processing, the clamping plate and screw usually tighten the form, low productivity. To this end, I plant a self-clamping can be a time and have a certain versatility of the body U-vehicle fixture (Figure 2). Proved to use, easy to operate, high production efficiency. Now the structure of the principle described below. One end of the workpiece has been machined hole into the mandrel 4,