描述
塑鋼門窗近幾年在國(guó)內(nèi)方興未艾,傳統(tǒng)塑鋼門窗都是推拉窗,但推拉窗氣密性和開(kāi)啟方式等方面存在一系列不便和缺陷,而隨著人們生活水平的提高,平開(kāi)翻轉(zhuǎn)窗開(kāi)始進(jìn)入市場(chǎng)。平開(kāi)翻轉(zhuǎn)窗和推拉窗的結(jié)構(gòu)區(qū)別在于五金件上,目前國(guó)內(nèi)平開(kāi)翻轉(zhuǎn)窗五金件主要從國(guó)外進(jìn)口。北新建材(集團(tuán))有限公司2001年在國(guó)家經(jīng)貿(mào)委的支持下上馬全國(guó)第一條全自動(dòng)門窗五金沖壓線,對(duì)于生產(chǎn)出來(lái)的五金件質(zhì)量的壽命檢測(cè)是一個(gè)新的問(wèn)題。
五金件質(zhì)量的壽命檢測(cè)目前國(guó)內(nèi)沒(méi)有標(biāo)準(zhǔn),我們參考?xì)W洲的標(biāo)準(zhǔn)主要有以下幾方面要求:
1:開(kāi)啟壽命:要求不低于50000次,動(dòng)作要求模擬人工開(kāi)啟門窗,即先平開(kāi),執(zhí)手在第一開(kāi)關(guān)位置時(shí)(如圖1中位置),為起始位置。逆時(shí)針轉(zhuǎn)動(dòng)90。到平開(kāi)位置,水平向外平開(kāi),窗扇開(kāi)啟大約35。(以平開(kāi)轉(zhuǎn)軸位置為軸心),然后關(guān)閉窗扇,將執(zhí)手順時(shí)針旋轉(zhuǎn)90。到關(guān)閉位置;平開(kāi)動(dòng)作結(jié)束,執(zhí)手回到第一開(kāi)關(guān)位置時(shí),再將執(zhí)手逆時(shí)針轉(zhuǎn)動(dòng)180。到上懸位置,向外、向下拉平開(kāi)上懸,窗扇開(kāi)啟大約15。(以平開(kāi)下轉(zhuǎn)軸位置為軸心),然后關(guān)閉窗扇,將執(zhí)手順時(shí)針旋轉(zhuǎn)180。到關(guān)閉位置;此平開(kāi)與上懸為一個(gè)動(dòng)作周期,為一次平開(kāi)上懸開(kāi)啟。
2:開(kāi)啟頻率:檢測(cè)頻率為5次/分
3:開(kāi)關(guān)門窗力不大于100N,開(kāi)啟執(zhí)手力矩不大于1N.m;
據(jù)筆者在國(guó)內(nèi)和歐洲五大五金件生產(chǎn)廠參觀的結(jié)果看,主要是用氣缸來(lái)實(shí)現(xiàn)以上動(dòng)作,雖然基本可以實(shí)現(xiàn)動(dòng)作,但如果窗型復(fù)雜,這種設(shè)備適用的靈活性和方便性極差,我們考慮用伺服電機(jī)和滾珠絲杠來(lái)實(shí)現(xiàn)以上動(dòng)作并克服其弊端,設(shè)備已調(diào)試完畢,運(yùn)行效果良好。
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