【正文】 機(jī)械制圖正誤解析圖冊(cè)三一集團(tuán)有限公司總部研究總院2022年5月機(jī)械制圖正誤解析圖冊(cè) 前言三一集團(tuán)有限公司 I前 言為規(guī)范集團(tuán)內(nèi)的機(jī)械制圖，根據(jù)機(jī)械制圖國(guó)家標(biāo)準(zhǔn)和企業(yè)標(biāo)準(zhǔn)的規(guī)定，編制《機(jī)械制圖正誤解析圖冊(cè)》 ，本圖冊(cè)旨在提高研發(fā)人員制圖的標(biāo)準(zhǔn)化，提高制圖水平。 本圖冊(cè)包括以下部分： 一、圖線二、視圖三、尺寸及尺寸公差標(biāo)注四、幾何公差與配合五、焊縫標(biāo)注六、圖樣格式七、表面粗糙度本圖冊(cè)由研究總院主編，集團(tuán)各部門協(xié)助編制。 由于編制圖冊(cè)中經(jīng)驗(yàn)不足，不妥之處懇請(qǐng)批評(píng)指正。 研究總院2022 年 5 月機(jī)械制圖正誤解析圖冊(cè) 目 錄三一集團(tuán)有限公司 1目 錄前 言 .........................................................................................................................................................................................................I目 錄 .........................................................................................................................................................................................................1第 1 章 圖線 .............................................................................................................................................................................................1 斷裂邊界線 ....................................................................................................................................................................................1 中心線 ............................................................................................................................................................................................4 過渡線與彎折線 ............................................................................................................................................................................5 相鄰輔助零件與特定區(qū)域 ............................................................................................................................................................6 網(wǎng)狀結(jié)構(gòu) ........................................................................................................................................................................................7第 2 章 視圖 .............................................................................................................................................................................................2 局部視圖 ........................................................................................................................................................................................3 局部視圖按基本視圖、向視圖配置 ................................................................................................................................3 局部視圖按第三角畫法配置 ................................................................................................................................................4 局部放大圖 ....................................................................................................................................................................................5 向視圖 ............................................................................................................................................................................................6 剖視圖和斷面圖 ............................................................................................................................................................................7 局部剖視圖 ........................................................................................................................................................................7 斷面圖 ....................................................................................................................................................................................8 斜視圖 ............................................................................................................................................................................................9 其他規(guī)定畫法 ..............................................................................................................................................................................10 彈簧墊圈畫法 ......................................................................................................................................................................10 較小斜度畫法 ......................................................................................................................................................................11目 錄 機(jī)械制圖正誤解析圖冊(cè)2 三一集團(tuán)有限公司第 3 章 尺寸及尺寸公差 .......................................................................................................................................................................12 尺寸數(shù)字 ......................................................................................................................................................................................13 指引線 ..........................................................................................................................................................................................14 角度、半徑、弧長(zhǎng) ......................................................................................................................................................................16 角度數(shù)字 ..............................................................................................................................................................................16 球半徑 ....................................................................................................................................................................................17 弧長(zhǎng)標(biāo)注 ..............................................................................................................................................................................18 長(zhǎng)圓孔（腰形孔） ......................................................................................................................................................................19 通孔 ...................