At the top of the double top or a clip a clip to a workpiece installation: the shaft at one end of the cylindrical with chuck clamping, end with a tailstock top to resist center hole of the workpiece installation method.
This kind of installation method can improve the clamping rigidity of shaft, and the axis of the cylindrical as positioning base with central hole, often used in long axis machining and rough turning.
Between double top installation: on both ends of solid shaft center hole, hole in the center of the hollow shaft installed on both ends with cone plug cone or set of spindle, with lathe spindle and tailstock top on both ends of the shaft center hole of the workpiece installation method.
With center processing workpiece fashion and to align with the center plane will play center hole when machining the workpiece clamping, the support and the tailstock pointed.
With smaller cutting dosage support a Duan Guang diameter, the diameter must be greater than survival diameter of workpiece, then put the rest of the three supporting claw card is installed on the optical path.
To stand in the center of the use, should be to fix the frame body on the bed, pressure on the cover, and then adjust the three supporting claw, make it gently and evenly contact on the optical path, then tighten screw.
In the process of cutting, to constantly add lubricating oil, and watch for fever and elastic support.
If not prefabricated pieces of blank center hole, or workpiece at the center plane of the surface of the part is already processed, are not allowed to scratch, then you need to use the centering clamping sleeve, if September
2.
First the workpiece clamping between chuck and tailstock support reduction, and correction of solid, and then exit the tailstock support point, the centering sleeve is fixed on the appropriate position of the workpiece, dial indicator with mounted on the knife rack, respectively in horizontal direction and vertical direction correction centering sleeve alignment with workpiece axis, then the rack center frame.
Centering sleeve if solid on already finishing shows that, the necessary work in clamp screw fixation and mat on the surface of pure copper, prevent crushed artifacts.
When determining the rest position, want to consider to male parts processing should have enough stiffness.
If support team support, after using the best selection of artifacts and central as loyalty and the position of the bearing.
And as processing end face and inner hole, the end near the workpiece mounted position as the center.
Determine the location of a frame at the center of, in addition to considering the workpiece clamping should have enough stiffness, should also ensure that will not affect the position of the center frame is not reasonable processing.