Bidirectional locking expansion sleeve structure

• Main Authors: ZHOU SHUAI, SUN CHUNJUN, KONG XIANGZHI, WANG GANG, LIN JIANFENG, XU JICUN, CHEN JINGWEI, GUO ZHICHUN, HAO XU, LIU LIFANG, QIAO BAOZHONG, YAN KEHUI
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2019
• Subjects: BORING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING; TURNING

The invention discloses a bidirectional locking expansion sleeve structure. The structure is characterized in that a double cone spring is installed on an inner core shaft, a squeezing cover is screwed into an inner thread of an inner core shaft through an outer thread, the rear conical face of the double cone spring clamping head cooperates with a conical face of the inner core shaft, the front conical face of the double cone spring clamping head cooperates with the conical face of the squeezing cover, the cooperation relationship of the inner core shaft and a work piece can be changed by adjusting the screwing depth of the squeezing cover on the inner core shaft, and two supporting points are formed by the double cone spring clamping head. By means of structure, the technical problems ofcomplicated structure and poor using effect in the prior art are solved, and the expansion sleeve structure with high supporting stability and a simple structure is provided. 一种双向锁紧的胀套结构,双锥弹簧卡头安装在内芯轴上，挤压盖通过外螺纹拧入内芯轴的内螺纹上，双锥弹簧