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毕业设计说明书

数控铣床控制系统设计

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学 院： 机械设计制造及其自动化 专 业： 指导教师： 年 月

数控铣床控制系统设计

摘要

数控技术在机械制造业中得到广泛的应用，它有效地解决了复杂、精密、小批多变的零件加工问题，能适应各种机械产品迅速更新换代的需要，使企业快速响应市场需求的能力大大加强，其经济效益显著。

该设计首先对数控技术的国内外发展状况和数控技术的发展趋势进行描述。接着对数控铣床的控制系统进行了深入探讨，主要了解了数控铣床的整体布局、组成，及个部分的工作原理，确定数控铣床控制系统设计中的控制对象和被控对象。得出总体方案。

然后选择数控系统的的核心数控装置，经过比较选择华中数控系统为其控制系统，接下来分块设计其每一部分。主轴在一定范围内要实现无级变速和正反转功能，所以我们根据主轴电动机型号选择主轴变频器。数控铣床工作台要能在X、Y、Z三轴方向前后、左右、上下移动，所以要用伺服驱动器来控制伺服电机的运动，从而带动工作台的运动。接下来设计控制系统的主电路，主电路中要涉及空气开关、接触器、灭弧器、照明电路、伺服变压器、控制变压器的选择。最后设计数控铣床的一些辅助装置，包括数控铣床的手持单元、照明电路、风扇电路、光栅尺的连接。

关键字：数控铣床，控制系统，数控技术，数控系统

CNC milling machine control system design

Abstract

CNC technology in the machinery manufacturing industry has been widely applied, it effectively solve the complex, sophisticated, small groups of diverse parts processing problems, to adapt to the rapid replacement of various mechanical products need to enable enterprises the ability to respond quickly to market demand Greatly strengthened its economic benefits.

First, the design development of numerical control technology at home and abroad and the development trend of CNC technology is described. Then, the control system for CNC milling machine-depth discussions carried out, mainly to understand the overall layout of the CNC milling machine, composition, and a part of the working principle of CNC milling machine control system to determine the design of the control object and control object. Come to the overall program.

Then select the core NC NC system devices, by comparison to its selection of Huazhong CNC control system, the next block design each of its parts. Spindle in a certain range, and reversing function to achieve continuously variable, so we choose models based on the spindle drive spindle motor. CNC milling machine table to be able to in the X, Y, Z axis direction before and after, left, up and down, so use the servo drive to control the movement of the servo motor to drive the movement of table. Then the main circuit design of control systems, the main circuit to be related to air switches, contactors, arcing, lighting circuit, servo transformer, control transformer selection. Final design of the CNC milling some of the auxiliary devices, including hand-held milling machine unit, lighting circuits, fans, circuits, grating connection.

Keywords: CNC milling machines, control systems, CNC technology, CNC