楔键联接：键的上下两表面是工作面，键的上表面和轮毂键槽底面均有1∶100的斜度，装配后，键即楔紧在轴和轮毂的键槽里，工作表面产生很大预紧力。

Wedge key connection: the upper and lower two surfaces of the key are the working faces. The upper surface of the key and the bottom of the hub keyway h***e 1 to 100 slope. After assembly, the key is wedged tightly in the keyway of the shaft and hub, and the working surface has a large pre tightening force.

矩形花键联接是应用为广泛的花键联接。 应用广泛。如航空发动机、汽车、燃气轮机、机床、工程机械、拖拉机、农业机械及一般机械传动装置等等。渐开线花键的齿廓为渐开线，分度圆压力角α有30°及45°两种。齿顶高分别为0.5m和0.4m(m为模数)。

The rectangular spline connection is the most widely used spline connection. It is widely used. Such as aero engine, automobile, gas turbine, machine tool, engineering machinery, tractor, agricultural machinery and general mechanical tran***ission equipment and so on. The tooth profile of the involute spline is involute, and the pressure angle of the dividing circle is 30 and 45 degrees. The top of the tooth is 0.5m and 0.4m respectively (M is the modulus).

销联接一般用来传递不大的载荷或作安全装置；另一作用是起***作用。常与带孔螺栓和六角开槽螺母配对使用，把销插入螺栓的孔与螺母的槽中，以防螺母松脱。销按形状分为圆柱销、圆锥销和异形销三类。

Pin connecti are generally used to transfer ***all loads or safety devices; the other is to play the role of . It is often paired with hole bolts and six angle slotting nuts to insert the pin into the hole of the bolt and the slot in the nut so as to prevent the loosening of the nut. The pin is divided into three types: cylindrical pin, conical pin and special pin.

装夹过程及工作原理。钳台底座在设备工作台上固定好后，先调整可调钳口座在钳体底座上的位置，确保装夹行程内能有效对工件进行装夹；再将待加工产品置于柔性虎钳的两个钳口之间。

Clamping process and working principle. When the clamping platform is fixed on the equipment worktable, the of the adjustable jaw seat on the base of the clamp body is adjusted first, so as to ensure that the workpiece can be clamped effectively in the clamping stroke, and then the processed product is placed between the two jaw openings of the flexible vice.