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摘 要
本設(shè)計(jì)題目為引線片沖裁模,體現(xiàn)了典型沖裁模的設(shè)計(jì)要求、內(nèi)容及方向,有一定的設(shè)計(jì)意義。通過對該模具的設(shè)計(jì),加強(qiáng)了設(shè)計(jì)者對沖裁模設(shè)計(jì)基礎(chǔ)知識(shí)的理解和運(yùn)用,為設(shè)計(jì)更復(fù)雜的沖裁模具做好了鋪墊。
本設(shè)計(jì)運(yùn)用沖裁工藝及模具設(shè)計(jì)的基礎(chǔ)知識(shí),首先分析了板材的性能要求,為選取模具的類型做好了準(zhǔn)備;然后計(jì)算了沖裁件的沖裁力,便于選取壓力機(jī)噸位及確定壓力機(jī)型號;最后分析了沖裁件的特征,便于確定模具的設(shè)計(jì)參數(shù)、設(shè)計(jì)要點(diǎn)及卸件裝置。
本設(shè)計(jì)采用了沖孔—落料級進(jìn)模成形引線片。成形原理可劃分為兩個(gè)階段:首先沖孔凸模與凹模共同作用先沖出兩個(gè)1.85mm和兩個(gè)6.5mm的孔,而后利用第一步?jīng)_出的兩個(gè)1.85mm和兩個(gè)6.5mm的孔做精確定位使外形凸模與凹模共同作用使工件落料成形。
關(guān)鍵詞 沖孔—落料級進(jìn)模,沖孔凸模,凹模,壓力機(jī)噸位
Abstract
The topic for the design is gasket blanking die design,It has manifested the typical blanking dies design request, the content and the direction, has certain design significance.Through the design of the component mold, strengthens the designer’s understand and utilize to the blanking die design basical knowledge,has prepareed for designing more complex blanking die.
The design has utilize blanking craft and the basical knowledge of the mold design, has first analyzed the property requirement of the plate , has prepared for selecting the mold type;then has calculated the blanking strength,has advantaged to select the press tonnage and determine press model; Finally has analyzed the characteristic of the products, has advantaged to finite the mold design variable,the design main point and shedder.
This design used piercing and blanking progressive die to form the products.The forming principle can be divided to two stages: First, piercing punch and die affect together and pierce two holes of1.85mm and two holes of6.5mm,then use the three holes as pinpoint to make the product formed.
Key word Piercing and blanking progressive die Piercing punch Press Tonnage
目 錄
1 緒 論 1
2 零件工藝性分析 3
2.1 零件要求 3
2.2 材料分析 4
2.3 結(jié)構(gòu)分析 4
2.4 精度分析 4
3 工藝方案及工藝計(jì)算 5
3.1工藝方案確定 5
3.2工藝計(jì)算 5
(1)排樣設(shè)計(jì) 5
(2)沖裁工藝力的計(jì)算 7
3.3初選壓力機(jī) 8
4 模具的總體設(shè)計(jì) 9
4.1 模具類型的選擇 9
4.2 操作方式 9
4.3 卸料、出件方式 9
(1)卸料方式 9
(2)出件方式 9
4.4確定送料方式 9
4.5確定導(dǎo)向方式 10
5 模具零件設(shè)計(jì)及標(biāo)準(zhǔn)件的選擇 11
5.1 工作零件設(shè)計(jì) 11
(1)模具間隙 11
(2)落料凹模和沖孔凸模刃口的制造公差 11
(3)沖孔凸模 12
(4)凹模采用整體式結(jié)構(gòu) 14
5.2 其他板類零件的設(shè)計(jì) 14
5.3 橡膠的選用 15
(1)根據(jù)卸料力求橡膠的橫截面積 15
(2)橡膠的高度尺寸 15
(3)校核 16
5.4 模柄的選用 16
5.5 導(dǎo)柱與導(dǎo)套的選擇 16
5.6 緊固零件的選擇 16
5.7 所選設(shè)備的校核 16
6 模具總裝圖 17
7 模具零件加工工藝 19
8 模具的裝配 22
設(shè) 計(jì) 總 結(jié) 24
致 謝 25
參考文獻(xiàn) 26
IV