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彎片沖壓成形工藝及模具設(shè)計(jì)
摘要：本設(shè)計(jì)為彎片落料沖孔復(fù)合模及彎曲模設(shè)計(jì)。通過對該零件模具的設(shè)計(jì)，進(jìn)一步加強(qiáng)了設(shè)計(jì)者沖壓模設(shè)計(jì)的基礎(chǔ)知識，為設(shè)計(jì)更復(fù)雜的沖壓模具做好了鋪墊和吸取了更深刻的經(jīng)驗(yàn)。
本設(shè)計(jì)運(yùn)用沖壓成形工藝及模具設(shè)計(jì)的基礎(chǔ)知識，首先分析了沖壓件的外形及用處性能要求，為選取模具的類型做好了準(zhǔn)備；然后計(jì)算了沖壓力，便于選取壓力機(jī)；最后計(jì)算了制件的壓力中心，確定模具的設(shè)計(jì)參數(shù)、設(shè)計(jì)要點(diǎn)及推出裝置的選取。
設(shè)計(jì)復(fù)合模，首先要設(shè)計(jì)條件排樣圖。彎片展開后的形狀簡單。由于零件外形尺寸為自由尺寸對精度要求不高，為了提高材料的利用率減少沖裁力，雖然這時會使零件外形尺寸公差等級降低但是經(jīng)過籌兼顧，全面考慮。這里我們采用少廢料排樣。
凹模采用整體式凹模，各沖裁的凹模孔均采用線切割機(jī)床加工，安排凹模在模架上的位置時要依據(jù)計(jì)算壓力中心與模柄中心重合。
關(guān)鍵詞:復(fù)合模 、大批量 、彎片、少廢料排樣 、導(dǎo)正銷 、卸料板
The design of punching bending die bending
Abstract：This design falls the material punch holes superposable die and the bending die design for the angle iron.Through to this components mold design, further strengthened the designer to flush the die design the elementary knowledge, for designed the more complex ramming mold to complete the upholstery .
This design the elementary knowledge which designs using the ramming forming craft and the mold, first has analyzed the pressing part contour and the use performance requirement, for selected the mold the type to prepare for; Then has calculated the ramming strength, is advantageous for selects the press; The last count workpiece center of pressure, the definite mold design variable, the design main point and promoted the installment the selection.
The design superposable die, first must a design conditions row of specimen map.The angle iron launches after the shape to be simple.Because the components external dimensions are not high for the free size to the precision request, in order to enhance the material the use factor reduction blanking force, but although could cause the components external dimensions grade of tolerance by now to reduce the process to plan the proper attention to both, comprehensive consideration.Here we use a few waste material row of type.
The concave mold uses the integral-type concave mold, various blankings concave nib uses the line cutting engine bed processing, arranges the concave mold when pould frame position must rest on the pressure rating center and the die shank center superposition.
Key word: The superposable die, the mass, the angle iron, a few waste material row of type, lead are selling, unload the yard lumber