摘 要

组合机床是一种能够在一次加工中完成多道工步的加工装置，通常是由大部分的通用零部件加上少量的专用零件组合而成的，可完成多轴、多刀等同时加工的任务，现如今因为其极高的生产效率而被广泛用于与各大制造业。本课题是基于柴油机体设计专用组合钻床，目的在于提高大批量生产柴油机的工作效率，提高加工精度，节约生产成本。

本次设计的组合钻床，完成对柴油机体顶面6孔的加工。对于柴油机体的设计与制造，在加工其顶面6孔时，需在对机体熟悉的情况下设计出一台组合机床以及该机体专用的夹具，不仅要保证其大批量生产时的工作效率及加工精度，更要考虑其加工的经济可行性。根据S195机体工序图选择刀具设计需完成加工示意图、主轴箱图、夹具图、夹具体图以及机床联系尺寸图。

关键词：柴油机；组合机床；钻孔；主轴箱；夹具

Abstract

A combinatorial machine tool is a processing device that can complete multiple steps in a single process. It is usually a combination of most common parts and a small number of special parts. It can complete multi-axis, multi-knife, and other simultaneous processing tasks., Today it is widely used in major manufacturing industries because of its extremely high production efficiency. The purpose of this thesis is to improve the working efficiency, machining precision and production cost of diesel engine.

The design of the combined drilling machine to complete the diesel engine top face 6 holes processing. For the design and manufacture of a diesel engine body, when processing its top 6 holes, it is necessary to design a combination machine tool and a special fixture for the machine body under the condition of familiarity with the body, not only to ensure the working efficiency and processing accuracy of the mass production., Consider the economic feasibility of its processing. According to the S195 process diagram, the cutter design needs to complete the machining diagram, the spindle box diagram, the fixture diagram, the clip concrete diagram, and the machine tool contact size diagram.

Key words:Diesel engine; Combined machine tools; Drilling; Spindle box; fixture

目 录

1. 组合机床的概述................................................................................................................................... 1

1.1组合机床及其特点.......................................................................................................................... 1

1.2组合机床的发展趋向...................................................................................................................... 1

1.3组合机床的配置形式...................................................................................................................... 1

1.4组合机床的工艺范围及加工精度.................................................................................................. 2

1.5组合机床的经济分析及发展.......................................................................................................... 2

1.6设计组合机床的基本要求.............................................................................................................. 2

1. 组合机床总体设计............................................................................................................................... 4

2.1组合机床的设计步骤...................................................................................................................... 4

2.1.1拟定方案阶段.......................................................................................................................... 4

2.1.2技术设计阶段.......................................................................................................................... 4

2.1.3工作设计阶段.......................................................................................................................... 4

2.2组合机床方案的制定...................................................................................................................... 4

2.2.1影响方案制定的主要因素...................................................................................................... 4

2.2.2箱体类零件工艺基准面的选择.............................................................................................. 4

2.2.3确定工件的夹压位置.............................................................................................................. 5

2.3确定切削用量及选用刀具.............................................................................................................. 5

2.3.1刀具的选用.............................................................................................................................. 5

2.3.2切削用量的选用...................................................................................................................... 5

2.3.3确定切削力、切削扭矩、切削功率及刀具耐用度.............................................................. 6

2.4组合机床总体设计--三图一卡...................................................................................................... 7

2.4.1被加工零件工序图.................................................................................................................. 7