汽车锁座零件冲压工艺分析及模具设计

论文编号:JX1577  论文字数:11570.页数:35 附任务书，开题报告，外文翻译,CAD图

 汽车锁座零件冲压工艺分析及模具设计
摘要：模具是现代工业生产中的重要工艺装备，本论文主要涉及冲压模具工艺设计和弯曲模具工艺设计，整个过程包括工艺方案、工序安排、工序尺寸、使用的设备及模具类型，并根据设计出的冲裁凸凹模的尺寸及技术要求制定其机加工工艺规程，最终绘制出正确的冲裁模具装备图和弯曲模具装备图。
 根据零件的技术要求，确定工艺方案为：先进行冲裁然后弯曲。在冲裁工艺阶段，拟定两种落料与冲孔方案：一种是落料与冲孔复合；一种是先落料在冲孔。通过各方面计算与比较，确定第一种方案更优。在弯曲阶段，由于孔接近变形区，弯曲后需要钳工修磨，以达到工艺要求。
 在凸凹模的制造过程中，由于模具制造与一般机械制造相比较，有着特殊的技术要求和明显的特点，必须区别对待，（1）单件生产：每种模具一般生产1～2副，普遍采用修锉、修配方法加工，工序组合相对集中对工人技术水平要求较高。（2）制造质量高：一般地，模具工作零件的制造精度比产品零件高2～4级，需采用坐标磨床、数控机床加工。（3）形状复杂：一般加工难度大，有时需要特种加工或专门化机床。（4）材料硬度高：一般采用工具钢淬火、低温回火，需要采用特种加工方法。

关键词：模具  冲裁  弯曲  工艺
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  录
前言
机械与模具制造业在国民经济中的地位………………（1）
当前国际模具发展现状及其特点………………………（1）
我国模具发展现状及其特点……………………………（2）
汽车锁座零件的简单介绍………………………………（2）
锁座零件冲压工艺分析
零件结构的分析…………………………………………（3）
确定工艺方案……………………………………………（4）
冲压模的设计
零件工艺计算……………………………………………（5）
设计各主要零件结构尺寸………………………………（12）
冲裁模装配图……………………………………………（17）
弯曲模的设计
弯曲件的工艺分析………………………………………（18）
制定弯曲方案……………………………………………（21）
确定毛坯弯曲部分尺寸L弯、下料方式……………… （22）
确定弯曲模结构形式……………………………………（23）
弯曲模装配图……………………………………………（27）
冷冲模零件的制造工艺
传统模具制造向现代模具制造的过渡…………………（28）
编制冷冲模零件工艺的整体思路………………………（28）
零件立体图和凸凹模立体图……………………………（29）
凸凹模的加工工艺………………………………………（30）
结 论………………………………………………………………(33)
参考文献…………………………………………………………（34）
致 谢………………………………………………………………（35）