關鍵詞：專用夾具，工件，機械制造
Abstract
Machining process used to install the workpiece fixture to determine the workpiece and cutting tool relative position and to clamp the workpiece reliably. In the machine tool, generally with a common fixture, such as the three-jaw lathe chuck, chuck four claws; milling machine - the vice death, dialectical disk, sub-degree first-class, they have a certain degree of generality, can be used to the installation of a certain size range and a variety of workpiece shape, which in a variety of mechanical manufacturing, especially in the workpiece and the volume is not a diversity of tools and machine repair workshop very broad application. However, in the actual production, are often found in general-purpose fixture can not only satisfy the production requirements, using common workpiece clamping fixture with low productivity, labor-intensive, processing quality, and often need to increase the line processes. Must therefore be a special fixture design and manufacture to meet specific process parts requirements. And precision instruments in the aviation industry, for products of complex shape parts, high precision, in order to meet the product quality, productivity and economic aspects of the request, widely used in a variety of special fixture. For example, a Taichung-based axial-flow jet engine in the mass production of more than seven dedicated fixture stem; an aircraft system in the bulk of the annex to the needs of the production of stem more than 2 dedicated fixture. Therefore, a dedicated fixture design, manufacture and research in aviation and industrial production of precision instruments have very important meaning and role. Key words: special fixture, workpiece, machine-building
目 錄
摘 要Ⅰ
Abstract …Ⅱ
第一章 緒 論…1
1.1 課題背景及發展趨勢…1
1.2 軸承座加工工藝簡述…2
1.3 專用夾具的功用…3
1.4 機床夾具的分類…5
1.5 機床夾具的組成…6
第二章 軸承座夾具設計概述…8
2.1 設計專用夾具應注意經濟效益…8
2.2 設計專用夾具的依據和主要原則8
2.2.1 設計專用夾具的依據8
2.2.2 設計專用夾具的主要原則9
2.3 鉆床夾具設計要點 …9
第三章 軸承座的定位設計 …14
3.1 工件定位方法及定位元件 14
3.1.1 工件以平面定位 …14
3.1.2 工件以內孔表面定位 …17
3.1.3 工件以外圓表面定位 …20
3.1.4 工件以組合表面定位 …21
3.2 工件定位時的幾種情況 …25
3.3 軸承座的定位設計 …25
3.4 軸承座定位誤差的計算 …27
3.4.1 計算定位誤差的重要性 27
3.4.2 定位誤差及其產生原因 27
3.4.3 軸承座定位誤差的計算 27
第四章 軸承座的夾緊裝置設計 …29
4.1 夾緊裝置的組成和要求 …29
4.2 軸承座的夾緊裝置 …29
4.3 軸承座夾緊力的確定 31
第五章 夾具體 33
5.1 夾具體的基本要求 …33
5.2 夾具體的毛坯制造法 34
5.3 軸承座的夾具體 35
第六章 引導裝置的設計 36
6.1 固定鉆模板 36
6.2 固定鉆套.…36
總 結37
致 謝38
參考文獻 …39
