【摘要】 基于振动钻削的原理,对振动钻削的运动学特性进行分析推导出振动钻削中最小的切削厚度,根据最小的切削厚度将振动钻削分为分离型和不分离型振动钻削。构造深小孔钻头振动系统的动力学模型,对钻头的静止化和刚性化进行理论分析和试验研究。实验结果表明:与普通钻削相比,振动钻削能使钻头的等效刚度得到提高,从而保证孔的加工质量和加工过程中的稳定性。更多还原

【Abstract】 Based on the principle of vibration drilling,its kinematics characteristics was analyzed and deduced to achieve minimum cutting thickness,according to the minimum cutting thickness,the vibration drilling is divided into separated and non-separated vibration drilling. Construct vibration system dynamics model of micro deep hole bit,theoretically analyze and experimentally research static and rigidity of bit. The experimental results show that: comparing with conventional drilling,vibration drilling can improve equivalent stiffness of the bit,thus guarantee processing quality and stability of the hole.更多还原