毕业设计（论文） 精密数控磨床的总体设计

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摘 要

本课题是集机，电，液一体化的高科技项目，所要解决的关键问题是主轴箱上两个同轴轴承孔的超精密加工。此磨床的加工方式采用切入式磨削方式，工件安装在回转工作台上，随工作台回转，同时砂轮回转，砂轮的径向进给靠回转工作台沿X方向位移实现，上面的轴承孔及上端面加工好后，用同一砂轮加工下面的轴承孔及下端面，工件一次安装，以保证精度。总体布局为立式磨床，主要分为磨头部分、回转工作台、床身、垂直立柱、拖板以及测量机构。总体传动方案为：由外置步进电机驱动齿轮，然后通过齿轮传动带动滚珠丝杠，整个磨头装置通过滚珠丝杠进行Z轴方向上的移动，磨头的旋转则通过另一个外置电机来驱动，回转工作台的驱动则通过外置电机驱动皮带轮，由皮带轮的传动来使回转工作台的旋转，拖板的驱动则由步进电机控制。同时，磨床的设计中运用了数控技术，现代测试手段，微量进给软件补偿技术，从而使精密机械设计达到所要求的精度。

关键字：加工精度，设计方案，分配，参数

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毕业设计（论文） 精密数控磨床的总体设计

General Design of Precise Numerical Control Grinding Machine

Abstract

This topic is to gather the machine, electricity, the high-tech item that the liquid integral whole turn, the key problem for to solve is the principal axis box is previous two to process with the super nicety of the stalk bearings bore. This grinding machine processes the way adoption correspond type to whet to pare the way, the work piece install at turn round the work on the stage, turn round with the work pedestal, the emery wheel turns round at the same time, the path of the emery wheel to enter to depend turn round the work pedestal to follow the X direction moves the realization, top of bearings bore and top end face process good after, process with same emery wheel underneath of bearings bore and under carry the noodles, the work piece install once, with guarantee the accuracy. Total layout for the sign type grinding machine, mainly is divided in to whet the head cent and turn round the work set, bed body, perpendicularity to sign the pillar and drag along the plank and measure the organization. Total spread to move project is: From outside place to tread into the electrical engineering to drive the wheel gear, then spread to move to arouse to roll the bead silk through a wheel gear, whole whet a device to pass to roll the bead silk to carry on the Z stalk the square heading up of

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毕业设计（论文） 精密数控磨床的总体设计

ambulation, whet the head to revolve to then pass another outside place the electrical engineering to drive, turn round the work pedestal to drive then through an outside place the electrical engineering to drive the leather belt round, from the leather belt round spread to move to make the turn-over work pedestal revolve, drag along the knothole to drive then from tread into the electrical engineering to control. At the same time, made use of number to control the technique in the design of the grinding machine, modern test means, enter to compensate technique for software little by little, thus make precise machine the design attains the accuracy request.

Key Words: Accuracy of Process，Project Design，Allotment，Parameter

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