Structure and Function of SK40P Lathe Spindle Box

The structure and function of the headstock of SK40P lathe, also known as headstock, its main task is to make the spindle obtain different speeds in both positive and negative directions through a series of speed change mechanisms.

At the same time, the spindle box gives off a part of power to transfer the motion to the feed box. The spindle in the spindle box is the key part of the lathe. The stability of spindle running on bearings directly affects the machining quality of workpiece. Once the rotation accuracy of the spindle is reduced, the use value of the machine tool will be reduced.

The main task is to make the spindle get different rotational speeds needed for forward and backward steering through a series of speed change mechanisms, and at the same time, the spindle box divides part of the power to transfer the motion to the feed box. The spindle in the spindle box is the key part of the lathe.

In order to reduce the influence of cutting force and cutting heat, the deformation of sleeve parts produced by rough CNC lathe machining can be corrected in finishing.

In order to reduce the influence of clamping force, the following measures are taken in the process: when radial clamping is used in precision NC machining, the clamping force should not be concentrated on a certain radial section of the workpiece, but should be distributed over a larger area to reduce the clamping force per unit area of the workpiece. If the workpiece can be installed in an open ring with appropriate thickness, it can be clamped with this ring.

Special claws can also be used to increase the contact area. When positioning with holes, open mandrel should be adopted for clamping. The position of clamping force should be selected in the position with strong rigidity to improve the deformation of thin-walled parts under the action of clamping force. Change the direction of clamping force from radial clamping to axial clamping.

In precision NC machining, the process boss or thread with enhanced rigidity is made on the workpiece to reduce the clamping deformation. When machining, it is clamped with claws with special structure, and the convex edge is cut off at the end of machining.