【正文】
本了解一下加工的零件,確定軸承座的生產(chǎn)類型,然后確定毛坯的種類和制造,然后擬定工藝路線,做出工藝卡片和工序卡片,加工余量和工序尺寸的確定和時間定額的確定,金屬切削機(jī)床的選定,機(jī)床夾具的設(shè)計包括定位方案的設(shè)計和對刀及導(dǎo)向裝置的設(shè)計,夾緊裝置的設(shè)計,夾具體的設(shè)計,畫出夾具裝配圖和夾具圖確定過程。 AbstractThe course of the bearing of a point of order processing, as well as 13 17hole design of process equipment, first of all to find out basic processing of parts, to determine the production of bearing type, and then determine the type of rough and manufacturing, and then the development of process line, to do the technology and processes card card size allowance and processes to identify and determine a fixed time, the selection of metalcutting machine tool, fixture design, including the design and positioning of the knife and the designoriented devices, clamping devices design, the design of specific folder, painted jig and fixture assembly to determine the process of Fig. This is a course of training, to enable us to grasp how the application of their knowledge, to create products that meet the requirements. 目錄 1 7 毛坯的制造形式 7 基面 7 8 10 11 1工序尺寸及公差的確定 12: 13 15 15心得體會 ................................................12參考文獻(xiàn) 19該設(shè)計是軸承零件的加工工藝和1317孔的工藝裝備要求:1317孔在軸承零件底座的左右2邊,每邊孔心距70 mm,2邊孔心距140mm。由于年產(chǎn)量為4000件,屬于中批生產(chǎn)的水平,而且零件輪廓尺寸不大,故可以采用鑄造成型。毛坯工藝.確定毛坯的尺寸公差和加工余量鑄造類型(砂型)基本尺寸尺寸公差等級加工余量等級公差CT加工余量座頂、底面180CT9MAG5頂內(nèi)側(cè)面12CT9MAGΦ11上端面30CT9MAG21317孔1317CT9MAGΦ40前端面Φ40后端面60CT9MAGΦ11孔11CT9MAGΦ45內(nèi)端面45CT9MAG2Φ40內(nèi)端面40CT9MAG2座頂、底面125CT9MAG5 基面選擇是工藝規(guī)程設(shè)計中的重要的設(shè)計之一,基面的選擇正確與合理,可以使加工質(zhì)量得到保證,生產(chǎn)率得到提高。該工件選擇φ40圓后面和Φ45的內(nèi)面??梢詾楹罄m(xù)工序準(zhǔn)備好精基準(zhǔn)。 精基面的選擇 選加工后的Φ40后面為精基準(zhǔn)面來加工其前面 。 生產(chǎn)過程是指將原材料轉(zhuǎn)變?yōu)槌善返娜^程。 工藝過程是指在生產(chǎn)過程中,通過改變生產(chǎn)對象的形狀、相互位置和性質(zhì)等,使其成為成品或半成品的過程。其中與原材料變?yōu)槌善分苯佑嘘P(guān)的過程,稱為直接生產(chǎn)過程,是生產(chǎn)過程的主要部分。工序是加工過程的基本組成單元。毛坯依次通過這些工序而變成零件。 工序是組成工藝過程的基本單元,也是生產(chǎn)計劃、成本核算的基本單元。除此之外,還應(yīng)當(dāng)考慮經(jīng)濟(jì)效果,以便使生產(chǎn)成本盡量下降。(2)遵循“先粗后精”原則,先安排粗加工工序,后安排精加工工序。12Φ40前端面Φ40后端面半精銑軸承座Φ40前端面,使前后端面距為50mm半精銑軸承座Φ40后端面,使前后端面距為50mm立式銑床立式銑床高速鋼套式面銑刀、游標(biāo)卡尺、專用夾具高速鋼套式面銑刀、游標(biāo)卡尺、專用夾具3座頂面粗銑軸承座頂面,使其與定面臺面距