摘 要
本設(shè)計(jì)是基于鋼板彈簧支架零件的加工工藝規(guī)程及一些工序的專用夾具設(shè)計(jì)。鋼板彈簧支架零件的主要加工表面是外圓及孔系。一般來(lái)說(shuō)，保證平面的加工精度要比保證孔系的加工精度容易。因此，本設(shè)計(jì)遵循先面后孔的原則。并將孔與平面的加工明確劃分成粗加工和精加工階段以保證孔系加工精度。主要加工工序安排是先以孔系定位加工出平面，在后續(xù)工序中除個(gè)別工序外均用頂平面和工藝孔定位加工其他孔系與平面。夾具選用專用夾具，夾緊方式多選用手動(dòng)夾緊，夾緊可靠，機(jī)構(gòu)可以不必自鎖。因此生產(chǎn)效率較高。適用于大批量、流水線上加工。能夠滿足設(shè)計(jì)要求。
關(guān)鍵詞：鋼板彈簧支架類零件；工藝；夾具；
ABSTRACT
The design is based on the body parts of the processing order of the processes and some special fixture design. Body parts of the main plane of the surface and pore system. In general, the plane guarantee processing precision than that of holes machining precision easy. Therefore, this design follows the surface after the first hole principle. Plane with holes and the processing clearly divided into roughing and finishing stages of holes to ensure machining accuracy. Datum selection box input shaft and the output shaft of the supporting hole as a rough benchmark, with top with two holes as a precision technology reference. Main processes arrangements to support holes for positioning and processing the top plane, and then the top plane and the supporting hole location hole processing technology. In addition to the follow-up processes individual processes are made of the top plane and technological hole location hole and plane processing. Supported hole processing using the method of coordinate boring. The whole process of processing machine combinations were selected. Selection of special fixture fixture, clamping means more choice of pneumatic clamping, clamping reliable, institutions can not be locked, so the production efficiency is high, suitable for large batch, line processing, can meet the design requirements.
Key words: Angle gear seat parts; fixture;
目 錄
摘 要 II
ABSTRACT III
第1章 緒論 1
1.1 夾具簡(jiǎn)介 1
1.2 夾具的發(fā)展趨勢(shì) 1
1.3 本次設(shè)計(jì)的內(nèi)容 2
1.4 機(jī)床夾具的功能 2
第2章 加工工藝規(guī)程設(shè)計(jì) 4
2.1 零件的分析 4
2.1.1 零件的作用 4
2.1.2 零件的工藝分析 4
2.2 鋼板彈簧支架加工的主要問(wèn)題和工藝過(guò)程設(shè)計(jì)所應(yīng)采取的相應(yīng)措施 5
2.2.1 孔和平面的加工順序 5
2.2.2加工方案選擇 5
2.3 鋼板彈簧支架加工定位基準(zhǔn)的選擇 6
2.3.1 粗基準(zhǔn)的選擇 6
2.3.2 精基準(zhǔn)的選擇 6
2.4 鋼板彈簧支架加工主要工序安排 7
2.5 機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 9
2.6選擇加工設(shè)備及刀、量具 9
2.7確定切削用量及基本工時(shí)（機(jī)動(dòng)時(shí)間） 10
第3章 加工鋼板彈簧支架車床夾具設(shè)計(jì) 22
3.1 車床夾具設(shè)計(jì)要求說(shuō)明 22
3.2車床夾具的設(shè)計(jì)要點(diǎn) 22
4.2.3切削力及夾緊力的計(jì)算 24
3.3 定位機(jī)構(gòu) 26
3.4夾緊機(jī)構(gòu) 26
3.5零件的車床夾具的加工誤差分析 26
3.6 確定夾具體結(jié)構(gòu)尺寸和總體結(jié)構(gòu) 27
3.7 零件的車床專用夾具簡(jiǎn)單使用說(shuō)明 29
結(jié) 論 30
參考文獻(xiàn) 31
致 謝 33
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