A device for turning slender threaded shafts on a lathe

Abstract

The invention discloses a device for long and thin threaded shaft turning of a lathe. The device for long and thin threaded shaft turning of the lathe is mounted on a large carriage of the lathe and comprises a base, a guide sleeve, a telescopic sleeve, a tool reset ring, thread length control mechanisms and tool assemblies. The device has the beneficial effects that due to the arrangement of three sets of threaded tools distributed circumferentially and evenly, threaded shaft deformation in the turning process is reduced, and machining quality is guaranteed; due to arranged adjusting sleeves, the length of a thread on each to-be-turned long and thin shaft can be controlled precisely; due to the arrangement of first inclined faces and third inclined faces capable of being in contact with each other or being separated from each other, thread ending machining can be achieved precisely, and the tool collapse situation is effectively avoided; and due to the arranged tool reset ring, the three sets of threaded tools can contract towards the center at the same time, and operation is fast and convenient.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a device for turning an elongated threaded shaft on a lathe. Background technique [0002] For threads with small nominal diameter, long processing length and poor workpiece rigidity, it is difficult to clamp the workpiece during processing, the thread cutting is not stable, and the workpiece is difficult to maintain a stable state, etc., resulting in bending deformation of the axis of the external thread of the slender rod and irregular thread profile. , disordered teeth and other problems, the material of the external threaded part of the slender rod has good plasticity and toughness, but poor hardness. In addition, if the threaded part is located in the middle of the slender shaft, due to the small diameter and poor rigidity of the workpiece, a large deformation will occur during the cutting process and the machining cannot continue. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] For threads with small nominal diameter, long processing length and poor workpiece rigidity, it is difficult to clamp the workpiece during processing, the thread cutting is not stable, and the workpiece is difficult to maintain a stable state, etc., resulting in bending deformation of the axis of the external thread of the slender rod and irregular thread profile. , chaotic teeth and other problems, the material of the external threaded part of the slender rod has good plasticity and toughness, but poor hardness

In addition, if the threaded part is located in the middle of the slender shaft, due to the small diameter and poor rigidity of the workpiece, a large deformation will occur during the cutting process and the machining cannot continue

Images