工藝夾具畢業(yè)設(shè)計(jì)-托板加工工藝及典型工序夾具設(shè)計(jì)（全套含CAD圖紙）,工藝,夾具,畢業(yè)設(shè)計(jì),加工,典型,工序,設(shè)計(jì),全套,cad,圖紙 托板加工工藝及典型工序夾具設(shè)計(jì) 摘 要 本設(shè)計(jì)是基于-托板零件的加工工藝規(guī)程及一些工序的專用夾具設(shè)計(jì)。-托板零件的主要加工表面是平面及孔系。一般來說，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。基準(zhǔn)選擇以-托板的輸入軸和輸出軸的支承孔作為粗基準(zhǔn)，以頂面與兩個(gè)工藝孔作為精基準(zhǔn)。主要加工工序安排是先以支承孔系定位加工出頂平面，再以頂平面與支承孔系定位加工出工藝孔。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。支承孔系的加工采用的是坐標(biāo)法鏜孔。整個(gè)加工過程均選用機(jī)床。夾具選用專用夾具，夾緊方式多選用氣動(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：-托板類零件；工藝；夾具； Plate Processing Technology and Typical Process of Pixture Design 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: box type parts process; fixture; 目 錄 摘 要 II Abstract III 第1章 緒論 1 1.1 機(jī)械加工工藝概述 1 1.2機(jī)械加工工藝流程 1 1.3夾具概述 2 1.4機(jī)床夾具的功能 2 1.5機(jī)床夾具的發(fā)展趨勢 3 1.5.1機(jī)床夾具的現(xiàn)狀 3 1.5.2現(xiàn)代機(jī)床夾具的發(fā)展方向 3 第2章 加工工藝規(guī)程設(shè)計(jì) 5 2.1 零件的分析 5 2.1.1 零件的作用 5 2.1.2 零件的工藝分析 5 2.2 托板加工的主要問題和工藝過程設(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 孔系加工方案選擇 6 2.3 托板加工定位基準(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 7 2.4 托板加工主要工序安排 7 2.5 機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 10 2.6確定切削用量及基本工時(shí)（機(jī)動(dòng)時(shí)間） 10 2.7 時(shí)間定額計(jì)算及生產(chǎn)安排 19 4 托板銑端面夾具設(shè)計(jì) 24 4.1 指出存在的問題 24 4.2 夾具設(shè)計(jì) 24 4.2.1夾具體設(shè)計(jì) 24 4.2.2 定位基準(zhǔn)的選擇 25 4.2.3 定位方案和元件設(shè)計(jì) 25 4.2.4 定位誤差的計(jì)算 25 4.2.5 夾緊力計(jì)算 26 4.2.6 夾緊機(jī)構(gòu)的設(shè)計(jì) 28 4.2.7 定向鍵與對刀裝置設(shè)計(jì) 29 4.2.8確定夾具體結(jié)構(gòu)尺寸和總體結(jié)構(gòu) 31 4.2.9 夾具設(shè)計(jì)及操作的簡要說明 32 總結(jié) 34 參 考 文 獻(xiàn) 35 致謝 36 4