支架φ20钻削专机设计+CAD图纸
第一部分为专用夹具的设计，其中包括工件的定位方式、定位元件的选择、定位误差的计算、夹紧方式的确定、夹紧力的确定、夹紧机构的选择及夹具动力系统、导向装置的确定、夹具体的设计和夹具体在机床上的定位方式。9598
第二部分为支架φ20钻削专机的设计，其中包括机床的基本尺寸的选择、电机的选择、传动系统的设计和钻头的选择、机床的进给机构设计。
本次设计降低了工人的劳动强度、提高了工作效率、节省了加工时间、降低了工件的加工成本。
关键词：钻削专机；效率；成本The drilling special machine design of theφ20 hole on the bracket
Abstract：This graduation project is to design a drilling machine of the Ø20 hole on the bracket. For the majority of common hole processing machine, multi-speed spindle multiple levels of speed can be used for the processing of various aperture hole. But for a certain volume, single-hole processing, the efficiency of these machines will reduce unnecessary waste. Bracket Ø20 designed to cut the plane design sub-processes, mass production of the stand design suitable for processing special fixtures and machine tools. This article consists of the following two aspects.
The first part of the design for special fixture, which comprises a workpiece positioning method, positioning component selection, positioning error calculation, determine the clamping, clamping force, clamping fixture selection and dynamic system, guiding device, clamp design and fixture on the machine tool positioning method.
The second part is the support of φ 20 drill cutting plane design, the design of feed mechanism design and bit selection, motor including basic dimensions of machine tool of choice, the choice, the transmission system of machine tool
This design reduces the labor intensity of workers, improves the work efficiency, save the processing time, reducing the processing cost of the workpiece.
Keywords: drilling machine; efficiency; costs
目 录
1 前言 1
1.1 支架φ20钻削专机概述 1
1.2 支架φ20钻削专机组成 1
1.3 钻削专用机床设计的目的、内容、要求 1
1.3.1 设计目的 1
1.3.2 设计内容 2
1.3.3 设计要求 2
2 钻削专机夹具设计 2
2.1钻床专用夹具设计方案拟定 2
2.1.1调查研究 2
2.1.2工件的加工工艺性分析 2
2.1.3工件的定位方式 3
2.1.4 定位元件的选择 5
2.1.5 定位误差的分析 5
2.1.6 定位误差的计算 7
2.1.7 工件在夹具中的夹紧 8
2.1.8 夹紧机构的选择 11
2.1.9 动力源的选择 12
2.2 液压台虎钳各部分的设计 13
2.2.1 支承钉的选择 13
2.2.2 在设计中选择可换式定位销（菱形销） 13
2.3 液压缸的选择 15
2.4 台虎钳身的设计 17
2.4.1活动钳身的设计 18
2.4.2 固定钳身的设计 19
2.5 钻套的选择与设计 20
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