變速器換擋叉夾具設計說明書
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- 變速器換擋叉夾具設計說明書This design content has involved the machine manufacture craft and the engine bed jig design, the metal-cutting machine tool, the common difference coordination and the survey and so on the various knowledge.
The reduction gear box body components technological process and its the processing ￠ 140 hole jig design is includes the components processing the technological design, the working procedure design as well as the unit clamp design three parts. Must first carry on the analysis in the technological design to the components, understood the components the craft redesigns the semi finished materials the structure, and chooses the good components the processing datum, designs the components the craft route; After that is carrying on the size computation to a components each labor step of working procedure, the key is decides each working procedure the craft equipment and the cutting specifications; Then carries on the unit clamp the design, the choice designs the jig each composition part, like locates the part, clamps the part, guides the part, to clamp concrete and the engine bed connection part as well as other parts; Position error which calculates the jig locates when produces, analyzes the jig structure the rationality and the deficiency, and will design in later pays attention to the improvement.
Keywords: The craft, the working procedure, the cutting specifications, clamp, the localization, the error
目 錄
序言…………………………………………………………………1
一. 零件分析 ……………………………………………………2
1.1 零件作用 ………………………………………………2
1.2零件的工藝分析 …………………………………………3
二. 工藝規程設計…………………………………………………4
2.1確定毛坯的制造形式 ……………………………………4
2.2基面的選擇傳 ……………………………………………5
2.3制定工藝路線 ……………………………………………8
2.4機械加工余量、工序尺寸及毛坯尺寸的確定 …………11
2.5確定切削用量及基本工時………………………………14
三 夾具設計……………………………………………………14
3.1問題的提出………………………………………………14
3.2定位基準的選擇…………………………………………14
3.3切削力及夾緊力計算……………………………………15
3.4定位誤差分析……………………………………………17
3.5定向鍵和導向裝…………………………………………20
3.6夾具設計及操作簡要說明………………………………22
總 結………………………………………………………………23
致 謝………………………………………………………………24
參考文獻 …………………………………………………………25
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