購買扭軸折彎機時需要了解什麽？_南通華鍛重型機床有限公司

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2025-12-26

　　要(yao)購買扭軸折(she)彎機，您需要(yào)了解以下知(zhī)識：

　　1.零件彎曲(qu)半徑

　　扭軸折(shé)彎機采用自(zì)由彎曲時，彎(wan)曲半徑爲開(kāi)模距🔞離的0.156倍(bei)。自🈲由彎曲時(shí)，模具的開口(kou)距離應爲金(jin)屬材料厚度(du)的8倍。例如，當(dāng)💃🏻使用1/2英寸的(de)開口形成低(dī)碳鋼時，零件(jiàn)的彎曲🔅半徑(jing)約爲0.078英寸。将(jiang)這組模具用(yòng)于扭軸折彎(wān)機時，注意沖(chòng)頭和模具之(zhi)間沖程🌈底部(bù)的間隙，以及(ji)足以🐇補償回(hui)彈的過度彎(wān)曲，并将材料(liào)保持在大約(yuē)90°。底部模📐具彎(wān)曲時，模具角(jiǎo)度一般爲86～90°。在(zài)沖程底部，陽(yang)螺紋和陰螺(luo)紋之間的間(jian)隙🐇應略大于(yu)材料厚💚度。由(you)于底模彎曲(qu)的噸位較大(dà)(約爲♌自由彎(wan)曲噸位的4倍(bèi))，通常導緻彎(wān)曲♊半徑回彈(dan)的應力減小(xiao)，從而提高了(le)成形角度。壓(ya)花彎曲與底(di)部模具的彎(wan)曲相同，但不(bu)同之處在于(yu)，沖頭前端加(jia)工到所需的(de)彎曲半徑，沖(chong)頭與模具之(zhī)間在行程底(dǐ)部的間隙小(xiǎo)于材料厚度(dù)。由🏃于施加了(le)足夠的壓力(lì)🔴來迫使沖頭(tou)前端接觸材(cai)料，因此基本(ben)上避免了回(hui)彈。爲了在購(gòu)買✔️扭⚽軸折彎(wān)機時選擇很(hěn)低噸位規🤩格(ge)，計劃彎曲半(bàn)徑大🔴于材料(liao)厚度🚶‍♀️，并盡可(kě)能使用自由(yóu)彎曲法。當彎(wān)曲半徑較大(da)時，通常不會(hui)影響成品零(líng)件的質量及(ji)其未來使用(yong)。　　

　　2.精度

　　彎曲精(jīng)度要求是一(yi)個需要仔細(xì)考慮的因素(su)。正是這個因(yīn)💁素決定了您(nín)需要考慮使(shi)用扭軸折彎(wān)機還是手動(dòng)彎曲機。如果(guǒ)要求彎曲精(jīng)度爲±1°且無法(fa)更改，則須注(zhù)意CNC機床。扭軸(zhóu)折彎機滑塊(kuài)的重複精度(du)爲±0.0004英寸。須使(shi)用這種精度(du)和良好的工(gōng)具來創建準(zhun)确的角度。手(shou)動折彎機滑(hua)塊的重複精(jīng)度爲±0.002英寸，使(shi)用合适的模(mó)具時，通常偏(pian)差爲±2～3°。此外，扭(niǔ)軸折彎機已(yi)準備好快速(sù)安☀️裝模具🔴。當(dang)您需要彎曲(qǔ)許多小批量(liàng)零件時，這是(shi)一個無可争(zhēng)辯的理由。

　　3.彎(wān)曲件邊長

　　假(jia)設沿着5×10英尺(chi)的低碳鋼闆(pǎn)彎曲90°，彎曲機(jī)須施加額外(wài)7.5噸的壓力以(yǐ)頂起鋼闆，操(cāo)作員須準備(bèi)直尺以降低(dī)280磅。制作零件(jian)可能需要幾(jǐ)個強壯的工(gong)人，甚至一台(tái)起重㊙️機。扭軸(zhóu)折彎機操作(zuò)員通常需要(yao)折彎長邊零(ling)件。

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購買扭軸折(she)彎機時需要(yào)了解什麽？