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西南交通大學(xué)本科畢業(yè)設(shè)計(jì)(論文) 第3頁
目 錄
第1章 緒論 1
1.1模具行業(yè) 1
1.2國內(nèi)外模具發(fā)展?fàn)顩r及趨勢(shì) 1
1.3本次設(shè)計(jì)的主要方向、內(nèi)容及目的 2
第2章 沖裁件的工藝分析 4
2.1 沖壓件材料及結(jié)構(gòu)分析 4
2.2 批量生產(chǎn) 4
2.3 沖裁件工藝分析 4
2.4 沖裁件工藝設(shè)計(jì) 4
第3章 沖壓設(shè)計(jì) 5
3.1 計(jì)算搭邊值 5
3.2 條料寬度 5
3.3 排樣圖 6
3.4 沖裁力的計(jì)算 7
3.5 卸料力、推建力和頂件力的計(jì)算 7
3.6 壓力機(jī)選擇 7
第4章 沖裁件相關(guān)參數(shù)計(jì)算 8
第5章 沖裁件刃口的計(jì)算 9
第6章 模具標(biāo)準(zhǔn)零件設(shè)計(jì) 12
6.1固定擋料銷及導(dǎo)料銷 12
6.2推桿 12
6.3防轉(zhuǎn)銷 13
6.4圓柱銷 13
6.5卸料螺釘 14
6.6內(nèi)六角圓柱頭螺釘 15
6.7模柄 16
6.8卸料彈簧 16
6.9導(dǎo)柱導(dǎo)套 17
6.10模座 18
第7章 模具裝配與調(diào)試 19
7.1 模具裝配特點(diǎn) 19
7.2 裝配技術(shù)要求 20
7.3 裝配過程 22
7.4 裝模與試模 24
7.5 檢驗(yàn)和驗(yàn)收技術(shù)條件 25
7.6 使用規(guī)定 25
7.7 沖模設(shè)計(jì)的審核項(xiàng)目 26
7.8 模具制造者的保證 26
附錄 28
Master CAM 仿真加工 28
附表一：卸料力，推件力和頂件力系數(shù) 40
附表二：系數(shù)K的數(shù)值 41
附表三：合理搭邊值 41
附表四：磨損系數(shù)X 42
附表五：沖裁模初始雙面間隙Z 42
結(jié)論 44
致謝 45
參考文獻(xiàn) 46
摘 要
沖壓模具在實(shí)際工業(yè)生產(chǎn)中應(yīng)用廣泛。在傳統(tǒng)的工業(yè)生產(chǎn)中，工人生產(chǎn)的勞動(dòng)強(qiáng)度大、勞動(dòng)量大，嚴(yán)重影響生產(chǎn)效率的提高。隨著當(dāng)今科技的發(fā)展， 工業(yè)生產(chǎn)中模具的使用已經(jīng)越來越引起人們的重視，而被大量應(yīng)用到工業(yè)生產(chǎn)中來。沖壓模具的自動(dòng)送料技術(shù)也投入到實(shí)際的生產(chǎn)中，沖壓模具可以大大的提高勞動(dòng)生產(chǎn)效率，減輕工人負(fù)擔(dān)，具有重要的技術(shù)進(jìn)步意義和經(jīng)濟(jì)價(jià)值。
本文提出采用模具來生產(chǎn)沖壓件的新工藝，并針對(duì)某規(guī)格夾具沖壓件設(shè)計(jì)了復(fù)合模。該模具設(shè)計(jì)的難點(diǎn)主要是如何解決好零件中的孔沖裁、確定模具結(jié)構(gòu)、如何進(jìn)行模具的制造及沖裁方案選定等。本文結(jié)合沖壓件的特點(diǎn)，具體解決了壓力機(jī)的選擇與校核、凸模和凹模刃口尺寸計(jì)算及結(jié)構(gòu)設(shè)計(jì)、定位方案設(shè)計(jì)、卸料方式的設(shè)計(jì)、主要模具零件的加工工藝、標(biāo)準(zhǔn)零件的選用、模具的裝配等一系列的設(shè)計(jì)工作，這些設(shè)計(jì)可為類似的零件模具設(shè)計(jì)提供現(xiàn)實(shí)的指導(dǎo)意義。此次模具設(shè)計(jì)的突出特點(diǎn)是嘗試使用復(fù)雜的復(fù)合模具，解決常規(guī)沖壓工藝模具套數(shù)多、工藝路線長(zhǎng)、生產(chǎn)成本高、效率低等缺點(diǎn)，并為以后此類零件沖壓工藝的編制及模具設(shè)計(jì)提供了可靠的依據(jù)。
本文介紹的模具實(shí)例結(jié)構(gòu)簡(jiǎn)單實(shí)用，使用方便可靠，對(duì)類似工件的大批量生產(chǎn)具有一定的參考作用。
關(guān)鍵詞 沖模；復(fù)合模；沖裁力；沖裁間隙
西南交通大學(xué)本科畢業(yè)設(shè)計(jì)(論文) 第7頁
Abstract
Punching die has been widely used in industrial production. In the traditional industrial production, the worker work very hard, and there are too much work, so the efficiency is low. With the development of the science and technology nowadays, the use of punching die in the industial production gain more attention, and be used in the industrial production more and more. Self-acting feed technology of punching die is also used in production, punching die could increase the efficience of production and could alleviate the work burden，so it has significant meaning in technologic progress and economic value.
This Article proposes using mold to produce retainer of the new technology, And against a standard fixture retainer design of the compound dies. The main problems of this mold design is how to solve retainer of punching holes, determine mold structure, how to manufacturing the mold and selected blanking programs and so on. This Article Combine the characteristics of retainer, concretely solve the choice and verify check of the press machine, the numeration and structure design of the point dimension of punch and matrix, the locating project design, the method of stripper, the main mold parts processing, the choice of standard parts, the design of the model assemble. These designs can provide realistic guiding significance for similar mold design. But the characteristics of the design is to try to using the complicate dies. To solve the problem of original process, such as large numbers of die, long process of technology, high production cost, low efficiency, difficulty in keeping symmetry of working parts are solved, and a reliable evidence for the workout of stamping process and die design of these parts is provided.
The dies here discussed can be easily made, conveniently used, and safely operated. And it could be used as the reference in the large scale production of similar workpieces.
key words dies; compound dies; blanking force; blanking dearance