New processing method for vertical lathe to process large-sized thin pieces

Abstract

The invention discloses a new processing method for a vertical lathe to process large-sized thin pieces. The new processing method comprises the following step processes: firstly calibrating a foundation plate of the vertical lathe, then, mounting a plurality of permanent-magnetic worktables annularly distributed on the foundation plate, and installing a replaceable magnetic conductive soft claw on each permanent-magnetic worktable; then, installing a workpiece on each permanent-magnetic worktable, enabling the corresponding magnetic conductive soft claw to be matched with the workpiece, positioning an excircle of the workpiece through a cylindrical pin, rotating a magnetic switch to fix the workpiece, and then, performing turning on the workpiece according to a set program. Turning of an end face, an inner circle and the excircle of each large-sized thin piece can be finished once by the method; a whole processing process is simple, rapid, accurate and labor-saving; auxiliary working time is shortened; working efficiency is increased; needs of certain special turning technologies are met; processing flows are reduced so as to lower repetitive tolerance of excessive machining programs; and a parallelism error is less than 0.02 mm.

Description

technical field [0001] The invention relates to a novel processing method for processing large thin parts with a vertical lathe. Background technique [0002] Most of the existing vertical lathes clamp the workpiece through the pressure plate bolts and calipers. During the turning process, the fixture needs to be repeatedly assembled and disassembled, and the turning of the end face, inner circle, and outer circle cannot be completed at one time; Additional welding and clamping of the tire frame is necessary. After the completion, the tire frame is cut off and ground and trimmed. Especially for some circular workpieces with thin wall thickness, if they are fixed with clamps, they will be deformed and out of round. If they are fixed with pressure plate bolts, it is very inconvenient to turn over and over again. It not only affects the machining accuracy, but also the operation is complicated, time-consuming and labor-intensive. Contents of the invention [0003] In view of...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing vertical lathes clamp the workpiece through the pressure plate bolts and calipers. During the turning process, the fixture needs to be repeatedly assembled and disassembled, and the turning of the end face, inner circle, and outer circle cannot be completed at one time; Additional welding and clamping of the tire frame is necessary. After the completion, the tire frame is cut off and ground and trimmed. Especially for some circular workpieces with thin wall thickness, if they are fixed with clamps, they will be deformed and out of round. If they are fixed with pressure plate bolts, it is very inconvenient to turn over and over again. It not only affects the processing accuracy, but also the operation is complicated, time-consuming and labor-intensive