汽車鎖座零件沖壓工藝分析及模具設(shè)計

論文編號:JX1577  論文字數(shù):11570.頁數(shù):35 附任務書，開題報告，外文翻譯,CAD圖

 汽車鎖座零件沖壓工藝分析及模具設(shè)計
摘要：模具是現(xiàn)代工業(yè)生產(chǎn)中的重要工藝裝備，本論文主要涉及沖壓模具工藝設(shè)計和彎曲模具工藝設(shè)計，整個過程包括工藝方案、工序安排、工序尺寸、使用的設(shè)備及模具類型，并根據(jù)設(shè)計出的沖裁凸凹模的尺寸及技術(shù)要求制定其機加工工藝規(guī)程，最終繪制出正確的沖裁模具裝備圖和彎曲模具裝備圖。
 根據(jù)零件的技術(shù)要求，確定工藝方案為：先進行沖裁然后彎曲。在沖裁工藝階段，擬定兩種落料與沖孔方案：一種是落料與沖孔復合；一種是先落料在沖孔。通過各方面計算與比較，確定第一種方案更優(yōu)。在彎曲階段，由于孔接近變形區(qū)，彎曲后需要鉗工修磨，以達到工藝要求。
 在凸凹模的制造過程中，由于模具制造與一般機械制造相比較，有著特殊的技術(shù)要求和明顯的特點，必須區(qū)別對待，（1）單件生產(chǎn)：每種模具一般生產(chǎn)1～2副，普遍采用修銼、修配方法加工，工序組合相對集中對工人技術(shù)水平要求較高。（2）制造質(zhì)量高：一般地，模具工作零件的制造精度比產(chǎn)品零件高2～4級，需采用坐標磨床、數(shù)控機床加工。（3）形狀復雜：一般加工難度大，有時需要特種加工或?qū)ｉT化機床。（4）材料硬度高：一般采用工具鋼淬火、低溫回火，需要采用特種加工方法。

關(guān)鍵詞：模具  沖裁  彎曲  工藝
Block lock parts of car stamping prodess and die design
Abstract: Mold is an important technique and equipment in modern industrial production, In this paper, the main process involved in design of stamping die and design of bending mold,the entire process including planning of process, organization of process, size of process, use of equipment and types of mold. And in accordance to the size of convex and concave mold and the its technical requirements complete the development of its machining process planning, eventually draw the correct assembling drawing of blanking dies and bending .
 According to the technical requirements of parts, Technology program is determined to blanking firstly and then bending. In the Stage of blanking process, The development of blanking and punching two programs: one is the composite blanking and punching; anther is blank firstly then punch. Through calculation and comparison of various aspects, the first program was to identify better.In the Stage of bending. As the deformation zone be in near of the hole, it need to bending fitter after grinding in order to meet the technical requirements.
 In the manufacturing process of Bump of Blanking Die, mold manufacturing is compared with the general machinery manufacturing, as a result of its special technical requirements and it clear features,wo Must be treated differently.(1) One-piece production:Generlly,each mold product for 1～2, Widely used processing of file repair, repair methods, combination of the process of relative concentration and demand the workers of higher skill levels; （2）the Manufacturing of high-quality: In general, the manufacturing of mold parts products are more precision than 2 to 4 high by the general parts, need to the use of coordinate grinding machines and CNC machining;(3) Complex shape：General the processing is more difficult, and sometimes it need for special processing or specialized tools;(4) Material hardness:In general tool steel need to hardening, low temperature tempering, it need to use the methods of special processing.
Keywords: Mold  Blanking  Bending  Technology

目  錄
前言
機械與模具制造業(yè)在國民經(jīng)濟中的地位………………（1）
當前國際模具發(fā)展現(xiàn)狀及其特點………………………（1）
我國模具發(fā)展現(xiàn)狀及其特點……………………………（2）
汽車鎖座零件的簡單介紹………………………………（2）
鎖座零件沖壓工藝分析
零件結(jié)構(gòu)的分析…………………………………………（3）
確定工藝方案……………………………………………（4）
沖壓模的設(shè)計
零件工藝計算……………………………………………（5）
設(shè)計各主要零件結(jié)構(gòu)尺寸………………………………（12）
沖裁模裝配圖……………………………………………（17）
彎曲模的設(shè)計
彎曲件的工藝分析………………………………………（18）
制定彎曲方案……………………………………………（21）
確定毛坯彎曲部分尺寸L彎、下料方式……………… （22）
確定彎曲模結(jié)構(gòu)形式……………………………………（23）
彎曲模裝配圖……………………………………………（27）
冷沖模零件的制造工藝
傳統(tǒng)模具制造向現(xiàn)代模具制造的過渡…………………（28）
編制冷沖模零件工藝的整體思路………………………（28）
零件立體圖和凸凹模立體圖……………………………（29）
凸凹模的加工工藝………………………………………（30）
結(jié) 論………………………………………………………………(33)
參考文獻…………………………………………………………（34）
致 謝………………………………………………………………（35）