多工位组合机床设计.rar

多工位组合机床设计

包括开题报告，外文翻译，论文，cad图纸

摘要

本次毕业设计所给题目是：立式八轴钻床总体及主轴箱设计。组合机床是根据工件加工需要，以大量通用部件为基础，配以少量专用部件组成的一种高效专用机床。目前，组合机床主要用于平面加工和孔加工两类工序。其加工精度稳定，生产效率高，自动化程度高，极大程度地降低工人劳动强度，因而，组合机床在生产中应用越来越广泛。
由于本次设计中的加工零件为拖拉机后挂犁左支架，为大批量生产。 同时所要加工的孔较多，并且要加工的孔呈上下阶梯分布，组合机床设计主要是对孔进行加工，孔加工共分三个工位，第一工位为装卸工位，第二工位钻4个φ21孔，第三工位钻4个φ17.5孔。通过组合机床的设计，保证按要求完成孔的加工，这是本次设计的最终目的。
主轴箱的设计是本次计的重点，也是难点，尤其是主轴箱传动系统的设计。根据所需加工孔的位置及速度要求，合理的设计传动系统、布置传动轴的位置是设计中的关键。要尽量减少传动轴的数量，使传动路线尽量简单。同时还要保证各轴各齿轮不相互干涉，保证传动能顺利实现加工要求。
由于组合机床能够进行多工位加工，提高自动化程度，缩短加工时间和辅助时间。并且大部分都是由通用部件组成，便于设计、制造和维护。而且机床易于改造，当产品和工艺变化时，通用部件还能重复利用，经济性较好。因此，组合机床在大批量生产中被广泛地应用。组合机床的设计也显得相当关键。

关键词：组合机床，多工位，自动化，主轴箱

THE DESIGN OF MULTI-BIT COMBIATION MACHINE TOOL

ABSTRACT

The title of this graduation design is eight vertical axles drilling spindle box and the overall design. Combination machine is based on the workpiece machining needs, and a large number of common components as the foundation, coupled with a small number of dedicated components, It consisting of a dedicated and efficient machine. At present, the portfolio mainly for two processes of plane  processing and holes processing. Its precision machining stability, high efficiency, high degree of automation,  great extent reduce labor intensity, and consequently, combination machine in production have been widely applied.
Because of the processing components of this design for tractor plow left trestle,and it is linked to mass production. Besides processing to the hole more, and the hole processing submitted the distribution up and down, combination machine primarily designe is hole processing, drilling work is divided into three spaces, the spaces for the first working-position, 2nd-Position drilling 4×φ21 holes, the third-position drilling 4×φ17.5 holes . By combining machine design, ensure the completion of hole processing under requires, this is the ultimate goal of this design.
Spindle Box Design is the current focus, and it also difficult, especially spindle box drive system design. According to the processing requirements of the hole location and speed, design the transmission reasonably, arrange the location of axles reasonably is the key. minimizing the number of drive shaft, transmission routes as simple as possible. The same time ensure that all the gear shaft without mutual interference, ensure that transmission can be achieved smoothly processing requirements.
As portfolio machine can carry out multi-stage processing and enhance the degree of automation, shorten processing time and support time. And most of them are composed by the general components, facilitate the design、 manufacture and maintenance. and Machine is easy transformed, when product and process changes, the general components can reuse, It is economical. Therefore, the combination machine has been widely applied in mass production. The design of combination Machine is very critical too.

Keywords : portfolio machine, multi-station, automation, Spindle Box

目  录

前  言 1
第1章 概述 2
第2章 工艺规程的拟定 4
§2.1 零件的结构特点及功能 4
§2.2 零件技术要求分析 5
§2.3 零件的材料及毛坯选择 6
§2.4 工艺路线的拟定 6
§2.5 重点工序分析 7
§2.6 切削用量及单件工时的确定 7
§2.6.1 刀具型号确定 7
§2.6.2 切削用量确定 8
§2.6.3 单件工时的确定 8
第3章 机床总体设计 11
§3.1 工序图 11
§3.2 加工示意图 11
§3.3 动力部件的确定 12
§3.4 机床联系尺寸图 13
§3.5 机床生产率计算 15
第4章 主轴箱设计 17
§4.1 主轴箱设计的原始依据 17
§4.2 主轴的型式与直径的确定 18
§4.2.1 主轴型式的确定 18
§4.2.2 主轴直径的确定 19
§4.3 主轴箱所动力计算 20
§4.4 传动系统的设计和计算 21
§4.4.1 传动系统设计的一般要求 21
§4.4.2 传动系统设计方法 22
§4.4.3 主轴及传动轴齿轮模数、齿数的确定 22
§4.4.4 传动系统及齿轮排数的确定 24
§4.4.5 传动轴直径的确定 25
§4.4.6 主轴及传动轴位置坐标的确定 26
§4.5 主轴箱的润滑及手柄轴的设置 29
结论 32
参考文献 33
致　谢 34