【正文】
制造工藝設(shè)計(jì)手冊》——以下簡稱“手冊”,表1—43,確定工序尺寸為 Z=,其中粗加工的加工余量Z=,精加工的加工余量Z=。工序XIII 清洗檢驗(yàn)上述兩個(gè)工藝方案的特點(diǎn)在于:方案一先加工圓柱面,再以圓柱面為基準(zhǔn)加工中心孔。工序Ⅹ 加工M5螺紋底孔, 攻絲M5工序Ⅺ 鉆進(jìn)油孔216。32H8mm。工序 Ⅵ 半精車,精車216。32mm至216。52mm及端面。 工序Ⅰ 鑄造成型。11mm。7mm螺紋孔,M5螺紋底孔。工序Ⅴ 粗車,半精車,精車216。32mm,216。52mm外圓。 工序Ⅰ 鑄造成型。16mm用設(shè)計(jì)基準(zhǔn)作為精基準(zhǔn)。具體選擇時(shí)應(yīng)考慮下列原則: 1) 選擇重要表面為粗基準(zhǔn) 2) 選擇加工余量最小的表面為粗基準(zhǔn) 3) 選擇較為平整光潔、加工面積較大的表面為粗基準(zhǔn) 以便工件定位可靠、夾緊方便。56mm外圓柱面,并以此為粗基準(zhǔn)加工出關(guān)鍵部分孔216。7mm的沉頭孔及螺紋孔,M5螺紋底孔,216。 15 16 16 夾具設(shè)計(jì) 16 16 16 18 18 19 軸承端蓋具有密封,定位的作用,因此結(jié)合面要有比較高的表面質(zhì)量,孔系加工也要求有比較高位置精度和形狀精度,這個(gè)零件從零件圖上可以看出,所有加工表面是以216。 12 工序X 鉆M5底孔φ4,攻絲M5 13 工序IⅩ 鉆進(jìn)油孔216。32H8mm。32mm至216。31mm,216。52mm及端面。16㎜,擴(kuò)孔216。s turn , draw up clamp assembling picture. As far as my individual be concerned, I want to knowing the general productive technology of machine part , consolidating and deepening the knowledge of basic course and specialized course what I have already learned , integrates theory with practice, and improve the ability to solve problems, what’s more , striking the basis for the future work and the following course’s studying .目錄 2 3 3 3 基準(zhǔn)選擇原則 3 基準(zhǔn)選擇 3 3. 制訂工藝路線 3 4 4 4 4 機(jī)械加工余量、工序尺寸及毛坯尺寸的確定 5 5 ,半精鏜216。然后,根據(jù)零件的性質(zhì)和零件圖上各端面的粗糙度確定毛坯的尺寸和械加工余量。首先我們要熟悉零件和了解其作用,它位于車床變速機(jī)構(gòu)中,主要起換檔作用。AbstractThis time I design“ End Cover”, including that the part pursuing , the blank pursues , assembling pursues , the machine work procedure card the working procedure card every sheet .We should know the part very well and know its effect first , it is worked in the organization which is used for change the speed in a lathe, and the mainly role of the part is alter the spe