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精密组合弹簧夹头是在简易型的基础上发展起来的,又称弹簧卡盘。精密组合弹簧夹头克服了简易弹簧夹头的缺点,定心和定位精度都比较高,适合于加工精度较高的零件。我厂在CB9108多刀半自动车床等几种机床上采用了一种精密组合弹簧夹头,经四年实际使用,证明结构合理,精度比较高,使用方便,适用范围广,效果好。一、精密组合弹簧夹头的结构如图所示的精密组合弹簧夹头既可以夹外圆,又可以撑内孔。该弹簧夹头将径向定中心和轴向定位置两种功能分别由两个零件承担,夹头的钳口和弹性元件也分成两个零件。这样对提高夹头的精度和改善零
Precision combination collet is developed on the basis of simple type, also known as spring chuck. Precision combination of collet to overcome the shortcomings of simple collet chuck, centering and positioning accuracy are higher, suitable for machining parts with higher accuracy. I plant in CB9108 multi-knife semi-automatic lathe and several other machines using a precision combination of collet chuck, the actual use of four years to prove that the structure is reasonable, high precision, easy to use, wide range of applications, the effect is good. First, the combination of precision collet chuck structure As shown in the combination of precision collet chuck can both clamp the outer circle, but also can hold the hole. The collet will be both radial centering and axial positioning of the two functions were borne by two parts, the chuck jaw and flexible element is also divided into two parts. This will improve the accuracy of chuck and improve zero