The driving thimble has a unique design for all kinds of machine tools. Turning, grinding and gear processing can be used in various occasions. The dynamic balance and automatic compensation system of patented technology is adopted inside the thimble, even for blank parts or inclined planes, it can still be processed. There are three ways to connect with the machine tool: Morse taper handle, flange connection and soft claw clamping, which are convenient and reliable to install and use. In finishing and grinding series, the fixed connection of the center thimble can accurately locate the axial dimension. The thimble body can process shaft sleeve parts with an outer diameter of 5 to 4mm or even larger with different specifications of driving paddles.
the movable thimble is equipped with a rolling bearing, and the thimble rotates with the workpiece, which can work normally at high speed. However, the rigidity of the ejector pin is poor, and sometimes it will jump and reduce the machining accuracy. Therefore, the ejector pin is only suitable for workpieces with low precision requirements. The characteristics of movable thimble are:
1. Small outer diameter and few interference knives, which are suitable for high-speed and moderate cutting;
2. Oil can be injected regularly to prolong the service life;
3. It has certain waterproof function, and the integrity is easy to dissipate heat;
4. The needle bearing with long inclination is adopted, and the three-point support arrangement structure has enhanced rigidity and good stability.