擋鉤的冷沖壓模具設計

摘  要

本畢業(yè)論文是一臺加工混凝土的強制式攪拌機的裝配，主要完成對新型攪拌機的了解與認識，完成其裝配工藝，進而熟悉其內部結構及工作原理。
根據(jù)SM430攪拌主機的裝配，了解到該種攪拌機是在意大利先進攪拌機的基礎上針對中國混凝土骨料大，連續(xù)工作時間長等特點，模塊化、分體式設計系列攪拌主機，擁有三項意大利發(fā)明專利，其核心技術具備歐洲最先進的混凝土攪拌技術。攪拌驅動部分和攪拌主機本體是兩個獨立的部分，裝卸非常方便，有效解決了傳統(tǒng)攪拌機檢修及更換配件多的問題。 液壓部分配有一個手動備用泵，可在緊急情況下打開卸料門或動力系統(tǒng)保護殼。 卸料門雙液壓缸驅動，最大限度保證卸料門正常工作，卸料門軸承自動潤滑，提高軸承使用壽命。 同步帶采用國外進口多楔帶，功率強，效率高，使用壽命長。采用意大利多普賽牌潤滑油泵，穩(wěn)定性強，使用壽命長。調心軸承全部采用世界三大品牌之一美國進口TIMKEN軸承，性能更加優(yōu)越。采用意大利原裝進口邦飛利、羅西減速機，噪音低、使用壽命長。減速機與攪拌主軸采用獨特的軟聯(lián)接，有效解決了因卡料等因素引起的對減速機及電機的損害，大大加強整機的使用壽命。主機的保護罩除了保護主機外，更能讓清涼氣流持續(xù)進入罩內，冷卻電機和減速機，以保障連續(xù)作業(yè)。
這些先進技術大大提高了攪拌機的質量及使用壽命，提高了在同行業(yè)中的競爭力。這些先進技術同時給予我國一些企業(yè)啟發(fā)，改進技術，發(fā)展國民經濟，同時也提高了建筑業(yè)的質量，促進建筑業(yè)的發(fā)展。

關鍵詞：密封 擰緊 調整 擰緊力矩 規(guī)定要求 安裝到位

Abstract

The rapid development of modern industry, cold stamping process of a wide range, with high efficiency and high precision, quality and utilization of materials, simple, suitable for mass production and implementation of manufacturing automation in the various sectors of the national economy, almost all Stamping from processed products. The design of the main parts linked to the stamping process analysis, data and the calculation based on selected parts of the stamping method and the convex and concave die other supporting parts design, but to focus on the design methods and needs attention. 20 era, the fabricated metal products, toys and hardware industries on the use of press, press, and other simple mechanical equipment and the      corresponding mold processed products, or some rough parts, which are used for blanking, punching the "knife-edge mold" For metal stretching the "dock workers mold." After the 1970s, using a gradient Die Cutting Machine processing, the punch (punch) and could die before quenching further cutting assembly to replace the original production of Die: heat treatment - assembly - deformation of the cumbersome amendment process . Die finish also a corresponding increase in levels up to 0.01 mm precision. Later, the professional mold factory, workshop die group has been widely used with Die Cutting Machine manufacture.
    Mold is a dedicated tool. Used for the various presses on. Through pressure on the metal or non-metallic materials as required by the shape of manufactured parts. This special tool referred to die. Die high and low levels of production, has become a measure of a country created an important indicator of the level of, but also to a large extent determine the quality and effectiveness of new product development capability. Therefore, the revitalization and development of China's mould industry has increasingly come under people's attention and concern.
Through pressure on the metal or non-metallic materials as required by the shape of manufactured parts. This special tool referred to die. Die high and low levels of production, has become a measure of a country created an important indicator of the level of, but also to a large extent determine the quality and effectiveness of new product development capability. Therefore, the revitalization and development of China's mould industry has increasingly come under people's attention and concern.
    Stamping as a processing industry in the national economy in the processing industry occupies an important position. According to statistics, stamping parts in various industries account for large proportion, particularly in the automotive, electrical, instrumentation, military industry, household electrical appliances, and other aspects of a greater proportion. Stamping processing of a broad range of applications, from sophisticated electronic components, instruments to guide the cover of heavy vehicles and beams, pressure vessel and the thunder of an aerospace craft, the skin, the body Quartermaster punching processing.
    Stamping parts in the shape and size of the interchangeability better precision, in normal circumstances, can meet the requirements of assembly and use. In addition, the stamping process because of a plastic material deformation, to improve the internal organization of metal,       mechanical strength has increased, so has the quality of light stamping parts, good stiffness, high precision and looks smooth, handsome features.
   Stamping processing is a high productivity of the processing methods, such as auto body and other large parts per minute can produce a few, and small parts of the high-speed stamping capacity of 1,000 per minute and above. Because of rough machining is stamping sheet or membrane, and in the general state of cold processing, it would be more easily achieved mechanization and automation, more appropriate allocation of the unmanned robot and the realization of production.

Key words: cold-stamping      single   process   mould

  目   錄
1  緒論…………………………………………………………………………………1
1.1沖壓加工的重要性及優(yōu)點 …………………………………………………………1
1.1.1重要性 ……………………………………………………………………………1
1.1.2優(yōu)點………………………………………………………………………………1
1.1.3 缺點 ……………………………………………………………………………2
1.2壓加工的概念…………………………………………………………………………2
1.3 金屬彈性變形與塑性變形…………………………………………………………4
2  落料凹模的加工……………………………………………………………………6
2.1工藝分析   ……………………………………………………………………………6
2.1.1沖裁件結構工藝性……………………………………………………………7
2.1.2沖裁件的精度和斷面粗糙度…………………………………………………7
2.2工藝方案確定    ……………………………………………………………………8
 2.2.1單工序模的特點………………………………………………………………8
2.2.2復合模的特點…………………………………………………………………9
2.3級進模的設計點 ……………………………………………………………………10
2.3.1定位方式  ……………………………………………………………………10
2.3.2冷沖模類型和特點 ……………………………………………………………10
2.4三類模具的優(yōu)缺點較  ……………………………………………………………11
2.4.1級進模特點 ……………………………………………………………………11
2.5模具結構形式的定…………………………………………………………………12
2.5.1沖孔落料復合模結構及特點 …………………………………………………12
2.6畫排圖…………………………………………………………………………………13
2.6.1搭邊  ………………………………………………………………………….16
2.6.2步距   …………………………………………………………………………18
2.6.3條料寬度 ………………………………………………………………………18
2.7計算材料利用η    ………………………………………………………………21
2.8計算沖力………………………………………………………………………………21
2.9初選壓力  ……………………………………………………………………………22
2.10計算壓心 ……………………………………………………………………………23
2.11計算凸凹模刃口尺寸 ……………………………………………………………24
2.11.1間隙的重要性  ………………………………………………………………25
2.11.2間隙測量  ……………………………………………………………………26
2.11.3沖模的安裝與調試……………………………………………………………26
2.11.4標準零部件的預制與儲備 ……………………………………………………27    2.12各孔口尺寸的確定  ……………………………………………………………31
2.13模具結構設計 …………………………………………………………………………31
2.14工序排樣原則  ………………………………………………………………………35
2.15校核壓力機安裝尺寸 ………………………………………………………………35
3設計小結 …………………………………………………………………………………36
4致謝…………………………………………………………………………………………37
5參考文獻   ……………………………………………………………………………….38
6附錄…………………………………………………………………………………………39