Reduce the influence of clamping force The following measures are taken to reduce the influence of clamping force in the process:
(1) When radial clamping is used in precision CNC 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 unit area of the workpiece. the clamping force. If the workpiece can be installed in an open ring of suitable thickness, clamp together with this ring. Special jaws with increased contact area are also available. When positioning with holes, it is advisable to use an open mandrel for clamping.
(2) The position of the clamping force should be selected at the part with strong rigidity of the part to improve the deformation of the thin-walled part under the action of the clamping force.
(3) Change the direction of the clamping force and change the radial clamping to axial clamping.
(4) Precise CNC machining produces rigid process bosses or process threads on the workpiece to reduce clamping deformation. It is clamped with a special structure of jaws during processing, and the convex edge is cut off at the end of processing.