5. How to prevent deformation when clamping deformed workpieces?

Answer: (1) The angle iron must have a certain degree of rigidity; (2) The positioning datum plane should be reasonably selected. (3) Increasing the

Adjust the support or process support head to increase the rigidity of the workpiece. (4) Use the pressure plate correctly to ensure firm clamping and prevent

Clamping deformation.

6. What are the reasons for lathes that can affect the cylindrical degree of the workpiece being processed?

Answer: (1) The parallelism between the spindle axis and the bed saddle guide rail is out of tolerance. (2) The bed guide rails are severely worn. (3)Use

When clamping two sharp workpieces, the axis of the tailstock sleeve and the axis of the spindle do not coincide. (4) The fixing screw is loose,

Causes the level of the lathe to change.

7. There are chaotic vibration ripples on the outer surface of the workpiece. What may be caused by the lathe?

Answer: (1) The raceway of the spindle rolling bearing is worn and the clearance is too large. (2) The axial movement of the spindle is too large. (3)

The chuck and connecting plate are loose, making the workpiece clamping unstable. (4) The clearance between the sliding surface of the slide is too large.

8. From the perspective of lathes, what are the reasons for the excessive pitch of turning threads?

Answer: (1) The axial movement of the screw is too large. (2) The opening and closing nut is worn and the coaxiality with the screw is out of tolerance, causing meshing.

Poor fit. (3) The dovetail guide rail is worn, causing the split nut to be unstable when closed. (4) From the main axis through the intersection

The gap in the transmission chain from changing gears is too large.