關(guān)鍵詞：工藝設(shè)計、基準(zhǔn)選擇、切削用量、夾具設(shè)計、定位基準(zhǔn)、定位誤差。
ABSTRCT
What this design around is the spring shackle processing craft as well as the processing φ30liang hole jig's design, the spring shackle divides into the shackle two kinds generally, the first shackle is uses in the fixed steel plate and the rear axle of car localization, can only rotate, cannot move, needs frequently the replenishment butter or the replacement gum cover, the latter shackle may move backward or extend, after generally big freight vehicle, the shackle is fixed, is only the steel plate extends. The car is moves the shackle, the steel plate and the shackle also moves, leading role after the carrying capacity, enables its steel plate to obtain extends, the extension, can have the normal cushioning effect. Limit spring position, and along with spring vertical motion, but around movement.
The jig design aims at φ30liang the hole unit clamp, considered the components quantity is quite big, belongs to the large scale production, therefore the efficiency is very important, therefore this design has discarded the former old way, uses the technical quite advanced air operated achievement clamping force origin. Components not high specification, therefore uses one to sell the localization, coordinates jig's about simultaneously to clamp then may satisfy the request.
Key word: Craft, datum, cutting specifications, localization datum, position error
目 錄
中文摘要………………………………………………………………………….…..…Ⅰ
英文摘要...........................................................................................................................Ⅱ
前言……………………………………………………………………………….……...1
第1章 零件的分析……………………………………………………………....…….1
1.1 零件的作用………………………………………………………………………….1
1.2 零件的工藝分析…………………………………………………………………….2
第2章 工藝規(guī)程設(shè)計………………………………………………………………….3
2.1 確定毛坯的制造形式…………………………………………………………….….3
2.2 基準(zhǔn)的選擇……………………………………………………………………….….3
2.3 制定工藝路線…………………………………………………………………….….4
2.3.1 工藝路線方案一...................................................................................................5
2.3.2 工藝路線方案二...................................................................................................5
2.3.3 工藝路線的比較與最終工藝方案.......................................................................6
2.4 機(jī)械加工余量和工序尺寸及毛坯尺寸的確定……………………………………..6
2.5 確定切削用量及基本工時…………………………………………………………..7
2.5.1 工序一…………………………………………………………………………...9
2.5.2 工序二...................................................................................................................11
2.5.3 工序三…………………………………………………………………………..12
2.5.4 工序四…………………………………………………………………………..16
2.5.5 工序五…………………………………………………………………………..19
2.5.6 工序六…………………………………………………………………………..20
第3章 專用夾具設(shè)計....................................................................................................21
3.1 問題的提出………………………………………………………………………….21
3.2 夾具設(shè)計………………………………………………………………………….…21
3.2.1 定位基準(zhǔn)的選擇……………………………………………………………..…21
3.2.2 夾緊力的計算及汽缸的相關(guān)數(shù)據(jù)計算..............................................................21
3.2.3 定位誤差的分析…………………………………………………………….….24
3.2.4 夾具設(shè)計及操作的簡要說明…………………………………………………...25
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