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                                                                            1. 當前位置:首頁 > 產品中心 > 門類 >
                                                                              方圓節
                                                                              來源:不銹鋼罐壁通氣孔生產廠家    發布日期:2017-01-03

                                                                              方圓節.jpg

                                                                              方圓節新低價格方圓節材質方圓節規格型號方圓節用途方圓節作用方圓節簡介從分析理想的一般方圓節結構特性入手,提出了一般方圓節手工放樣的一種改進方法,該方法不用細分“天圓”面的圓弧來近似求解放樣,而是直接畫出圓弧放樣線;推算出了一般方圓節的理論面積計算公式和提出了如何計算改進方法的放樣面積,從而可以定量地知道放樣的精度; 天圓地方形狀有平底形、曲面形(球形、拋物線形等)和錐形,幾種常見的翻邊凸模的結構形狀,圖中凸模直徑段為凸模工作部分,凸模直徑段為導正部分,1為整形臺階,2為錐形過渡部分,其中:帶導正銷的錐形凸模,當豎邊高度不高、豎邊直徑大于10時,可設計整形臺階,相反可不設整形臺階,當翻邊模采用壓邊圈時也可不設整形臺階;一種雙圓弧形無導正銷的曲面形凸模,當豎邊直徑大于6時用平底,豎邊直徑小于或等于6時用圓底;帶導正銷的豎邊直徑小于4時可同時沖孔和翻邊的凸模。此外,還有用于無預制孔的帶尖錐形凸模。凸、凹模尺寸可參照拉深模的尺寸確定原則確定,只是應注意保證翻邊間隙。凸模圓角半徑越大越好,好用曲面或錐形凸模,對平底凸模一般取≥4。凹模圓角半徑可以直接按工件要求的大小設計,但當工件凸緣圓角半徑小于小值時應加整形工序。

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