Servo central frame and application method thereof

Abstract

The invention discloses a servo central frame and an application method of the servo central frame. A supporting part is mounted on a frame body through a vertical adjusting mechanism; meanwhile, at least the supporting frame is provided with a detection device for detecting that a knife rest gets close so as to control the vertical adjusting mechanism to descend; after the knife rest spans across the central frame, the vertical adjusting mechanism resets; and the supporting part is further provided with an auxiliary supporting device which moves along the supporting part and is vertically guided by the frame body. According to the servo central frame and the application method of the servo central frame, influences on a machining progress are not great under the condition with good supporting.

Description

technical field [0001] The invention relates to a center frame for auxiliary support of the workpiece to prevent the workpiece from rotating and vibrating when the slender shaft is processed on a machine tool, and also relates to the use method of the servo center frame. Background technique [0002] When the length-to-diameter ratio of the workpiece is too large, its own static stiffness and dynamic stiffness are often insufficient. When processing it, if there is no support in the middle, the workpiece will vibrate too much. If it is too large and heavy, it cannot perform normal cutting. Therefore, the steady frame is generally used to support the workpiece at present, so as to prevent it from vibrating when it rotates due to insufficient rigidity. [0003] The current center frame is generally fixed on the bed. Although the rigidity of the fixed support is relatively high, the center frame that can neither move left or right nor rise and fall will inevitably hinder the p...

AI Technical Summary

Problems solved by technology

[0003] The current center frame is generally fixed on the bed. Although the support rigidity of the fixed setting is relatively high, the center frame that can neither move left or right nor rise and fall will inevitably hinder the processing.

During the machining process, the steady rest blocks the feed of the tool rest, so that when machining the workpiece, one side of the steady rest of the workpiece must be processed first, then the steady rest is removed, the tool rest moves to the other side, and then the steady rest is installed on the bed On the body, it is supported to the finished side of the workpiece, and then the other side of the workpiece is processed, so that there will be a cutting tool, which affects both the accuracy and the surface roughness

The more steady rests are required to process workpieces, the more times the steady rests are switched, the worse the machining accuracy and the lower the efficiency

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