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彎板沖壓成型工藝與模具設(shè)計(jì)
摘要本設(shè)計(jì)題目為彎板沖壓成型工藝與模具設(shè)計(jì)，體現(xiàn)了一般中等復(fù)雜性零件的設(shè)計(jì)要求、內(nèi)容及方向，有一定的設(shè)計(jì)意義。通過對(duì)該零件模具的設(shè)計(jì)，進(jìn)一步加強(qiáng)了自己沖壓模具設(shè)計(jì)的基礎(chǔ)知識(shí)，為設(shè)計(jì)更復(fù)雜的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)用沖壓成型工藝及模具設(shè)計(jì)的基礎(chǔ)知識(shí)，首先分析了沖壓的成型工藝，為工藝方案的選取類型做好了準(zhǔn)備；然后計(jì)算了沖壓件的展開尺寸，查取所用材料料厚的沖裁間隙及成型工藝參數(shù)，便于刃口尺寸計(jì)算。
本沖壓件的形狀大致為帶孔平板尾部折U型彎，所以在排工藝時(shí)考慮成型工序與沖孔工序的先后。先沖孔后成型，由于成型時(shí)產(chǎn)生拉力會(huì)造成孔位置偏移；先成型后沖孔會(huì)造成模具復(fù)雜程度增加進(jìn)而增加模具制造成本。根據(jù)產(chǎn)品圖所示相關(guān)公差要求結(jié)合實(shí)際生產(chǎn)中彎板的使用過程，分析空位置稍有偏差對(duì)產(chǎn)品的質(zhì)量影響，如孔位置對(duì)對(duì)產(chǎn)品質(zhì)量影響較大時(shí)，只能考慮先成型后沖孔工藝，反之則采用先沖孔后成型以降低模具制造成本和生產(chǎn)周期。
對(duì)工藝方案擬定以后，查詢相關(guān)設(shè)計(jì)手冊(cè)和資料并在指導(dǎo)老師的悉心指導(dǎo)下對(duì)模具總裝及相關(guān)零部件進(jìn)行逐一設(shè)計(jì)校核。
最后檢查所有設(shè)計(jì)步驟，進(jìn)行系統(tǒng)地查漏補(bǔ)缺，完善模具設(shè)計(jì)。
關(guān)鍵詞：彎板 沖裁 成型 工序
Bending plate stamping forming process and die design
Abstract
This design topic for stamping process and die design of bending plate, reflects the design of moderate complexity parts requirements, content and direction, the design of a certain significance. Through the design of the die parts, to further strengthen their basic knowledge of stamping die design, paving the way and draw a more profound experience for die design more complex.
This design using the basic knowledge of stamping forming process and die design, firstly analyzed the molding process of stamping, ready for the selected type of process scheme; expand size stamping calculates, check the material blanking clearance and molding process parameters calculation of thick, easy cutting edge size.
The stamping shape roughly flat plate with a hole tail fold type U bent, so in the discharge process when considering successively forming and punching process. The first punch forming, the forming force will cause the hole position offset; the first forming die punching will result in increasing the complexity and increase the mold manufacturing costs. According to the products shown relative tolerance requires the use of plate bending process combined with the actual production, analysis of space position a little deviation on the quality of products, such as hole position on the effect on the quality of large, can only consider the first forming punching process, whereas the punching forming to reduce the manufacturing cost and production cycle.
The process scheme, query design manual and data and by design to mold assembly and related parts and components under the guidance of the instructor.
Finally, check all design steps, the systematic gaps, improve the mold design.
Keywords: bending plate blanking molding process
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