摘 要

沖壓是一種先進(jìn)的金屬加工方法，它是就建立在金屬塑性變形的基礎(chǔ)上，利用模具和沖壓設(shè)備對(duì)板料施加壓力，使板料產(chǎn)生塑性變形或者分離，從而獲得一定形狀、尺寸和性能的零件。沖壓生產(chǎn)依靠模具和沖壓設(shè)備完成加工過(guò)程，因此具有生產(chǎn)率高、操作簡(jiǎn)便、便于實(shí)現(xiàn)機(jī)械化和自動(dòng)化的特點(diǎn)，能加工出用其他方法難于加工的形狀復(fù)雜的零件，且尺寸精度穩(wěn)定，材料利用率高，零件重量輕，在大批生產(chǎn)中，是一種先進(jìn)的優(yōu)質(zhì)、高效、低消耗和低成本的加工方法。隨著計(jì)算機(jī)軟硬件技術(shù)，計(jì)算機(jī)圖形學(xué)等學(xué)科的迅猛發(fā)展、CAD與CAE以及CAM技術(shù)已成為產(chǎn)品設(shè)計(jì)人員進(jìn)行研究開(kāi)發(fā)的重要工具，其中的三維造型技術(shù)已被制造業(yè)廣泛應(yīng)用于產(chǎn)品及模具設(shè)計(jì)、方案評(píng)審、自動(dòng)化加工制造及管理維護(hù)各個(gè)方面。
本文主要介紹了根據(jù)所提供的空調(diào)柜機(jī)底盤(pán)，以沖壓工藝手冊(cè)等大量參考資料與計(jì)算機(jī)模擬分析軟件結(jié)合為依據(jù)，利用經(jīng)驗(yàn)公式通過(guò)計(jì)算和分析對(duì)成形方法的可行性進(jìn)行驗(yàn)證,以及應(yīng)用計(jì)算機(jī)三維模擬分析軟件dynaform進(jìn)行模擬分析其工藝的可成形性，比較各種工藝的優(yōu)劣，最終確定其工藝方案，通過(guò)具體計(jì)算和設(shè)計(jì)該方案中各工序的工藝參數(shù)，設(shè)計(jì)并繪出典型工序所需的模具圖。文中簡(jiǎn)要概述了沖壓模具目前的發(fā)展?fàn)顩r和趨勢(shì)，對(duì)產(chǎn)品進(jìn)行了工藝分析、三維模擬和工藝方案的制定。按照沖壓模具設(shè)計(jì)的一般步驟，對(duì)其中關(guān)鍵典型工序進(jìn)行模具設(shè)計(jì)，計(jì)算并設(shè)計(jì)了模具上的主要零部件，如：凸模、凹模、凸模固定板、墊板、擋料板等。并選用了合適的沖壓設(shè)備。設(shè)計(jì)并制定了該零件技術(shù)可行，安全可靠，經(jīng)濟(jì)合理的工藝方案和模具裝配結(jié)構(gòu)。如此設(shè)計(jì)出的結(jié)構(gòu)可確保模具工作運(yùn)行可靠和沖壓產(chǎn)品大批量生產(chǎn)。


關(guān)鍵詞：沖壓，沖壓工藝分析，工藝參數(shù)，沖模，成形








ABSTRACT

Stamping is an advanced metal processing method, which is based on the plastic deformation of metals and uses of molds and stamping equipment to exert pressure on the sheet, bringing the sheet metal plastic deformation of separation, thus obtaining certain shape, size and performance parts. Stamping production rely on the stamping die and stamping equipment and the completion of processing ,therefore productivity, and easy to operate, ease of mechanization and automation features can be machined to other complex shape parts which are difficult to use other methods of processing, and dimensional accuracy and stability, material utilization, and high light weight parts, in a large number of production ,stamping is an advanced high-quality, efficient, low consumption and low-cost processing methods.
This paper introduced a provided Chassis of guiji Air conditioning , analysis the metal forming technology, compare all merits, finalizing its technology program, through special calculation and design of process parameters of the program, design and draw up drawing for the mold. This paper briefly outlined the stamping die current development status and trends. The product of a detailed analysis and the identification process. Stamping die design in accordance with the general steps to calculate and design the sets on the main mold parts, such as : punch and die. Punch plate, plate, Die plate and dump plates I. feet behind the sales, marketing and other derivative is. Die-standard model planes, to choose a suitable stamping equipment. Design work on the parts and specifications will press for the necessary checking calculation. So the structure is designed to ensure reliable operation of the die and stamping products of mass production.


Key words： stamping, process, parameters, die, forming



目 錄


中文摘要 I
ABSTRACT II
1 緒論 1
1.1 引言 1
1.2 沖壓成型的特點(diǎn)、應(yīng)用領(lǐng)域、發(fā)展趨勢(shì)與挑戰(zhàn)、現(xiàn)狀與差距 2
1.2.1 沖壓成型的特點(diǎn) 2
1.2.2 沖壓成型的應(yīng)用領(lǐng)域 2
1.2.3 沖壓成型的發(fā)展趨勢(shì) 3
1.2.4 沖壓行業(yè)發(fā)展所面臨的新挑戰(zhàn) 5
1.2.5 我國(guó)沖壓產(chǎn)業(yè)的現(xiàn)狀以及與國(guó)外的差距 5
1.3本課題研究的目標(biāo)和意義 6
2 沖壓工藝性分析 7
2.1沖壓工藝性總體要求 7
2.2沖壓件的工藝分析 7
2.2.1可成形性分析 8
2.2.2一次拉深成形分析 8
2.3結(jié)構(gòu)工藝性分析 9
2.4 工序方案的確定 10
2.4.1確定沖壓工藝方案 10
2.5工藝方案分析 13
2.5.1擬定工藝方案 13
2.5.2各工序可行性分析 13
3 CAE成形模擬分析 15
3.1自動(dòng)設(shè)置 15
3.2后處理 17
4 主要工藝參數(shù)計(jì)算 20
4.1計(jì)算沖壓力、選設(shè)備 20
4.1.1落料工序 20
4.1.2拉深成形工序 21
4.1.3沖孔工序 22
4.2沖壓生產(chǎn)工藝流程 23
5 模具總體設(shè)計(jì) 24
5.1模具結(jié)構(gòu)設(shè)計(jì) 24
5.1.1落料模模具設(shè)計(jì) 25
5.1.2拉深模模具設(shè)計(jì) 28
5.1.3沖孔模模具設(shè)計(jì) 30
5.2 模具材料的選用 34
5.3 模具熱處理 34
5.4 模具零件表面粗糙度及加工配合精度 34
6 結(jié)論 36
致謝 37
參考文獻(xiàn) 38