The invention relates to the field of processing tools, in particular to a lengthened tool bar damping method for turning long outer circles with deep inner holes.

Background Technology:

In new engines, for a long thin wall cylinder parts, such as multi-functional shaft parts processing, because this kind of components of the structure size is large, the circular arc of the inner hole machining parts transfer is big, high technical requirements, the big parts on the machine in a small, due to poor parts of the clamping rigidity, turning processing with the tool holder is a kind of extended tool rod, hanging elongation of a tool, The machined surface is easy to appear ripple and gnawing knife phenomenon, the surface quality of its machined parts is very poor, this kind of problem has always been a difficult problem plaguing parts processing. After querying a lot of information, found that the current solution is mainly two kinds: one is to use the thick tool bar in large machine tool processing, the other is to purchase special shock absorption tool parts processing, shock absorption tool bar is installed in the tool bar spring, belong to special tools.

Technical implementation elements:

Aiming at the above problems, the invention provides a simple and convenient solution to solve the problem of tool vibration in parts processing. Described method is that: the long thin wall cylinder parts turning processing used in the extension tool rod to use external winding in extended tool rod part soft package material, will lengthen tool rod wrapped in part, its winding package material thickness depending on the lathe tool rest distance for processing parts, with no interference occurs for the principle.

The specific wrapping method is as follows:

A. According to the structural characteristics of the parts and the actual demand of the processing tool shank, combined with the outline size of the parts, the lengthened cutter shank used in turning is first installed on the cutter tower for initial fastening;

B. Install the parts to be machined on the chuck of the machine tool;

C. Use soft vibration absorbing wrapping material to initially wrap the long tool rod part of the tool;

D. Move the cutter to check whether the soft wrapping material on the cutter rod interferes with the part to be machined, and determine the thickness of wrapping material under the condition that the wrapping material does not interfere;

E. Remove the extended cutter bar and fix tightly the wrapped vibration absorbing soft wrapping material with elastic soft material;

F. Install the tool wrapped with the vibration absorbing soft wrapping material on the tool rest again and adjust the position of the tool. After reasonable adjustment, program and debug the machine tool and process the parts.

In the above method, the vibration absorbing soft wrapping materials include rubber, soft rubber skin, plastic and other shock absorbing materials. The fixed vibration absorbing soft wrapping materials are elastic soft winding materials, and elastic rubber band is preferred.

This method is used to reduce the vibration of the tool bar of the thin-wall cylinder parts, which solves the difficulty of the vibration of the tool bar and the ripple of the machining surface caused by the difference of the rigidity of the tool bar and the parts.

The beneficial effects of invention

Processing using this way, through the adjustment of the tool rod processing, resistance to vibrate, the strengthened effect of the machining surface quality of parts processing the surface of the corrugated controlled, adopt the way of preventing tool rod vibration and very convenient, fast, effect is good, use this way to prevent the vibration of tool rod, has achieved obvious effect.