数控铣床主轴箱结构设计

摘要

数字控制是近代发展起来的一种自动化控制技术是用数字化信号对机床运动极其加工过程进行控制的一种方法,随着科学技术的迅猛发展，数控机床已经是一个国家机械工业水平的重要标准。

数控机床是装有程序控制系统的机床。该系统能够逻辑地处理具有使用号码，或其他符号编码指令规定的程序。

数控机床是以数控技术为代表的新技术对传统制造产业的渗透形成的机电一体化产品，起技术范围覆盖很多领域：（1）机械制造技术（2）信息处理、加工、传输技术；（3）自动控制技术；（4）伺服驱动技术；（5）传感技术；(6软件技术等。计算机对传统机械业的渗透，完全改变了制造业。制造业不但成为工业化的象征，而且由于信息技术的渗透，使制造业犹如朝阳产业，具有广阔的发展天地。

数控机床就是将加工过程所需的各种步骤以及刀具与工件之间的相对位移量都是用数字化的代码来表示。通过控制介质数字信息送入专用区域通用的计算机。计算机对输入的信息进行处理，发出各种指令来控制机床的伺服系统或其他执行元件，使机床自动加工出所需要的工件。

关键词：机械设计数控三坐标铣床主轴数控系统

Abstract

Digital control is a kind of automatic control technology developed in recent years is a method of using the digital signals of the machine is the machining process control, with the rapid development of science and technology, numerical control machine tool is an important standard of mechanical industry of a country level.

NC machine tool is provided with the program control system of machine tool. The system can be logically processing with the use of numbers, or other symbols coded instructions procedures.

NC machine tool is the penetration of the new technology of numerical control technology as the representative of the traditional manufacturing industries form the integration of mechanical and electrical products, technical scope covers many fields: (1) mechanical manufacturing technology (2) information processing, processing, transmission technology; (3) the automatic control technology; (4) servo drive technology; (5) sensor technology; (6 software technology. The computer penetration of the traditional mechanical industry, completely changed the manufacturing industry. The manufacturing industry is not only to become a symbol of industrialization, and because the penetration of information technology, the manufacturing industry is a sunrise industry, has the broad development world.

NC machine tools is the relative displacement between the various steps required to process as well as the tool and workpiece are using digital codes to represent. By controlling the medium of digital information into the special area for general computer. The computer processes the input, servo system sends commands to control the machine tool or other executive element, make the machine tool workpiece needed.

Keywords: mechanical design, CNC three axis milling machine spindle CNC system

目录

绪论 (1)

第一章数控加工技术概论 (7)

1.1 数控技术及数控加工的基本概念 (7)

1.2 数控机床的组成与分类 (8)

1.3数控机床的特点与数控机床的发展方向 (10)

第二章数控铣床主传动系统 (11)

2.1 数控机床对主传动的要求 (11)

2.2 数控铣床主传动的配置方式 (11)

第三章主轴电动机的选取 (14)

第四章同步带传动 (15)

4.1 材料选择 (15)

4.2 参数计算 (15)

第五章主轴组件的设计 (18)

5.1 主轴组件的设计要求 (18)

5.2 主轴材料的选择及尺寸、参数的计算 (20)

5.3 主轴传动装置箱体的作用 (24)

5.4 主轴箱体的截面形状和壁厚计算 (24)

第六章主轴轴承的选择 (25)

6.1 轴承的选择和轴承的精度 (25)

6.2 轴承预紧力的要求 (26)

6.3 主轴轴承的润滑与密封 (26)

6.4 轴承寿命校核 (27)

第七章联接键的选择和碟形弹簧的选择与计算 (29)

7.1联接键的选择 (29)

7.2碟形弹簧的选择与计算 (29)

7.3碟形弹簧材料及热处理、厚度和脱碳 (30)

7.4碟形弹簧的强压处理、表面强化处理和防腐处理 (30)

第八章螺钉联接的设计 (32)

第九章液压缸与密封件的设计 (34)