自行車腳蹬內(nèi)板沖壓工藝分析與模具設(shè)計、級進模含13張CAD圖

自行車腳蹬內(nèi)板沖壓工藝分析與模具設(shè)計、級進模含13張CAD圖,自行車,腳蹬,沖壓,工藝,分析,模具設(shè)計,級進模含,13,cad 自行車腳蹬內(nèi)板沖壓工藝分析與模具設(shè)計 摘 要 沖壓模具類型中，級進模生產(chǎn)效率高，容易實現(xiàn)生產(chǎn)機械化和自動化，常用于在批量生產(chǎn)。 本文依據(jù)自行車腳蹬內(nèi)板沖壓落料模，沖壓零件結(jié)構(gòu)簡單，精度要求不高，尺寸不大，屬于常年大批量生產(chǎn)。經(jīng)過結(jié)構(gòu)分析和工藝分析，擇優(yōu)方案如下：采用多工位級進模生產(chǎn)，分別進行沖孔、翻邊、整形、沖大孔、沖小孔、落料六道基本工序。零件材料為Q235，此材料塑性好，有一定強度，適用于受力不大的零件。除了凹、凸模之外，定位是級進模設(shè)計的重點，經(jīng)過計算與比較，第一工位設(shè)置始用擋料裝置、第二工位采用彈頂擋料銷、其余工位采用導(dǎo)正銷結(jié)合導(dǎo)料板進行定位，以保證定位的準確和沖壓件的尺寸要求。并配合對角型導(dǎo)柱模架進行導(dǎo)向，以提高模具壽命和工作質(zhì)量。此外，托料桿保證送料，彈性卸料板卸料，卸料力不太大并且沖壓時可兼起壓料作用。該級進模方案可以實現(xiàn)自動化生產(chǎn)，提高工作效率，并且降低成本，同時保證工件的生產(chǎn)要求。 關(guān)鍵字：沖壓；級進模；沖孔；翻邊；落料 Abstract In the different types of stamping die, the progressive die is commonly used in mass production because of high production efficiency, and it is easy to implement mechanization and automation in the production On the basic of the bicycle pedal board stamping blanking die, this stamping parts has simple structure, the precision of the part is not too high, the size is not big, shape is not complex, and it belongs to high-volume production. After the structural analysis and process analysis, the final program has been determine, that is, the multi-position progressive die is used in production, next, it respectively finishes six basic processes including piercing ,flanging, shaping, punching the large holes, punching the small holes and blanking. the material of the part is Q235 which has good plastic and certain strength,it is usually used for the parts which is not force heavily.In addition to the terrace die and the lower die, positioning is the focus of progressive die design,. After calculated and compared, the always-used trigger device is used in the first operating station, the trigger stop is used in the second operating station, the other station use guide pins to work with the guide plate for positioning which will ensure the accurate position and size requirements of the stampings. diagonal guide pillars die set with spring stripper is for guide to improve die life and quality of the workpieces. The holding pole is used to ensure the material feeding, the spring stripper to discharge, its discharge power is not too large and it can binder in the stamping. This program of progressive die can automate the production, improve efficiency and reduce costs, at the same time, it can ensure the production requirements of the workpiece Key words: stamping ; progressive die ; punching ; flanging ; blanking 目 錄 引言 1 1 零件工藝分析及工藝方案的確定 2 1.1 零件結(jié)構(gòu)分析 2 1.2 工藝方案分析及確定 3 1.3 沖壓零件材料的選擇 4 2 零件排樣方案的確定及計算 4 2.1 排樣方法 4 2.2 搭邊和料寬 5 3 各工序中所需力的計算 8 3.1 翻邊力的計算 8 3.2 沖裁力的計算 9 3.3 整形壓力： 10 3.4 卸料力、頂件力及推件力的計算 11 4 沖壓設(shè)備的選擇. 12 4.1 壓力中心的計算 12 4.2 沖壓設(shè)備類型的選擇 12 4.3 沖壓設(shè)備規(guī)格的選擇 13 5 模具主要尺寸的計算 13 5.1 翻邊工序凸、凹模計算 13 5.2 各沖裁工位凸、凹模計算 14 5.2.1沖裁間隙影響及合理選值 14 5.2.2各沖裁工序凹凸模刃口尺寸計算 15 5.3 整形工序的凸凹模設(shè)計 18 6 沖裁模具主要零部件設(shè)計 18 6.1 凸模類型及長度計算 19 6.1.1凸模的類型 19 6.1.2各個凸模長度計算 19 6.1.3各凸模的強度校核 20 6.2 凹模結(jié)構(gòu) 23 6.3 定位零件 24 6.3.1導(dǎo)料板 24 6.3.2 擋料銷、導(dǎo)正銷 25 6.4 卸料、托料裝置： 26 6.4.1卸料裝置 26 6.4.2托料裝置 28 6.5 模架及零件 28 6.5.1模架 28 6.5.2導(dǎo)柱、導(dǎo)套 29 6.5.3模柄 29 6.5.4墊板 30 7 模具材料的選用和熱處理方法 30 7.1 凸模與凹模材料和熱處理 30 7.2 沖裁模零部件的材料和熱處理 30 8 模具的裝配、調(diào)試與工作流程 31 8.1 模具的裝配 31 8.2 沖裁模具的調(diào)試 34 8.3 最終方案級進模的工作過程概述 35 9 級進模工作流程及零部件工藝卡 36 10 總結(jié) 40 謝 辭 41 參考文獻 42