可自动消隙的齿轮齿条驱动回转工作台的设计

高精度的回转工作台是数控机床的不可缺少重要部件之一,在有些场合需要用到180°定角度转位的回转工作台。设计了一种利用液压缸驱动、齿轮齿条传动,可自动消除间隙的回转工作台。该工作台主要包括工作台、箱体、抬升驱动机构、回转驱动机构以及消隙机构等。该回转工作台能实现定角度转位,自动消除间隙,并且传递扭矩大、结构简单、传动精度高。

Design of Gear rack Transmission Rotary Table Eliminating Clearance Automatically

The rotary table with high precision is an important indispensable part of numercial control (NC) machine tool, and a rotary table with a fixed angle translocation of 180°is needed in some occasions .A gear-rack transmission rotary table eliminating clear-ance automatically was designed driven by hydraulic cylinder .The main parts included in the table were working table , machine box , uplift drive mechanism , slewing drive mechanism , and eliminating clearance mechanism , and etc .The fixed angle translocation was re-alized eliminating clearance automatically .It can obtain large transmitted torque with simple mechanism and high transmission preci-sion.