| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pull stud bolt with an external and internal coolant and methods. <P>SOLUTION: The system and the method include using a pull stud bolt for connecting a tool holder to a collect in a spindle. The pull stud bolt includes a body configured to receive a tool holder, the body having a longitudinal passage fluidly connected to a cavity, the cavity fluidity connected to a plurality of the longitudinal channels, a sealing ring disposed around an end of the longitudinal passage, the sealing ring in contact with the cavity; a spring disposed in the cavity; and a sphere in contact with the spring. The sphere is configured to unlock the end of the longitudinal passage by losing contact with the sealing ring when a first force applied to the sphere from the spring is less than a second force applied by a fluid flowing through the longitudinal passage. The first and second forces are substantially opposite in the direction of application. <P>COPYRIGHT: (C)2012,JPO&INPIT |
