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title="數(shù)控文章" href="/bethel/news">數(shù)控文章</a></li> </ol> </nav> </div> <!--/sub_menu--><!-- 面包屑導(dǎo)航結(jié)束 --> <!-- 頁面標題開始 --> <div id="n1l1njb9b" class="title"> <h3><a>關(guān)于臥式加工中心前防護裝置的設(shè)計<small></small></a></h3> </div> <!-- 頁面標題結(jié)束 --> <hr class="featurette-divider"> <!-- 中部開始 --> <div id="n1l1njb9b" class="container"> <!-- 正文 --> <div id="n1l1njb9b" class="lead" id="print"> <p> <span style="font-size: 7.5pt; line-height: 11.3pt; text-indent: 0cm; background-color: transparent;">引言</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23">本文針對</span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">HDR</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">63</span></span><span id="n1l1njb9b" class="23">臥式加工中心整體防護的要求，對防護裝置的設(shè) 計。以現(xiàn)代工業(yè)設(shè)計方法為理論基礎(chǔ)，完成了臥式加工中心防護裝置的 前防護設(shè)計。</span></p> <p class="230" align="left" style="text-indent: 52pt; line-height: 11.3pt; background: transparent;"><span id="n1l1njb9b" class="23">1、加工中心防護設(shè)計的重要性和必要性 </span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">1.1</span></span><span id="n1l1njb9b" class="23">加工中心具有高速主軸、高性能數(shù)控系統(tǒng)、高精度快速進給系 統(tǒng)、高效冷卻系統(tǒng)、高精度和高速的的檢測技術(shù)、高性能刀具以及高安 全性能。</span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">HDR</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">63</span></span><span id="n1l1njb9b" class="23">臥式加工中心主軸速度有</span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">4000</span></span><span id="n1l1njb9b" class="23"><span lang="EN-US">「</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">/</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">min</span></span><span id="n1l1njb9b" class="23">和</span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">10000</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US" style="font-family: 宋體;">「</span><span lang="EN-US">/min </span></span><span id="n1l1njb9b" class="23">兩種轉(zhuǎn)速。在高速加工時，安全性問題也是必須考慮的。</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">1.2</span></span><span id="n1l1njb9b" class="23">在高速加工時，高溫飛濺的切屑、潤滑油的飛濺、刀具損壞后高 速飛出等因素，都是防護裝置必須考慮的。因此，合理、可靠的機床設(shè)計 就成為設(shè)計中的一個重要環(huán)節(jié)。所以在即充分全面地考慮到對機床本 身的安全保護，又能做到以人為本，避免因設(shè)計的不合理帶來對操作使 用者潛在的危險，而且使加工中心外觀上給人以親切感，宜操作性，美 的感覺。通過機床防護要表達出機床的一種穩(wěn)重，剛毅等感覺。從而表 達出加工中心獨有的特點。</span></p> <p class="230" align="left" style="text-indent: 56pt; line-height: 11.3pt; background: transparent;"><span id="n1l1njb9b" class="23">2、臥式加工中心防護裝置的設(shè)計流程 </span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">2.1</span></span><span id="n1l1njb9b" class="23">本次對加工中心防護的設(shè)計是在機床總體方案已經(jīng)確定。機床 防護外觀形狀基本確定，其他部件都已經(jīng)設(shè)計完成的條件下進行設(shè)計。 而且是在要求系列產(chǎn)品統(tǒng)一風(fēng)格的條件下進行設(shè)計。所以首先就要了解 本機床的基本運動情況，工件的最大加工范國，及各部件的分布位置。</span></p> <p class="230" align="left" style="text-indent: 19pt; line-height: 11.3pt; background: transparent;"><span id="n1l1njb9b" class="23">機床可以自動交換回轉(zhuǎn)工作臺，有最大加工工件的直徑尺寸，高度 尺寸。回轉(zhuǎn)門回轉(zhuǎn)直徑尺寸。機床可以在</span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">x</span></span><span id="n1l1njb9b" class="23"><span lang="EN-US">、</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">Y</span></span><span id="n1l1njb9b" class="23"><span lang="EN-US">、</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">Z</span></span><span id="n1l1njb9b" class="23">三軸上做直線運動。機 械手做回轉(zhuǎn)換刀運動。了解各液壓閥組的放置位置，主操作盒的位置。 主軸的原點位置(換刀位置)。排屑器、液壓站、電器柜、主軸冷卻器都位 于機床的后面。</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23">2.2上料區(qū)防護的設(shè)計</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23">因為</span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">HDR</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">63</span></span><span id="n1l1njb9b" class="23">加工中心設(shè)有托板交換工作臺，其中_個工作臺來來進 行上料，另</span><span id="n1l1njb9b" class="23"><span lang="EN-US">一</span></span><span id="n1l1njb9b" class="23">個工作臺進行加工。所以把上料工作臺區(qū)域的外防護稱之 為前防護。而前防護位于機床的最前面，工人要經(jīng)常上下料，所以機床 前防護盡量較少甚至不要有外漏件，來減少或避免對工人衣服或工件等<br clear="all" /> 的損壞或干擾等。比如：少用外漏圓頭螺釘?shù)取Ｈ绻仨氁敲幢M量用 球頭螺釘，或調(diào)整外漏件的尺寸來避開工人的工作區(qū)域等措施。</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">2.3</span></span><span id="n1l1njb9b" class="23">前防護的外型設(shè)計</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23">因為要上下料，所以應(yīng)該有開門。而開門的形式和外觀的構(gòu)造有很 大的關(guān)系。機床門的寬度主要受到工作臺尺寸的限制，為了方便操作人 員裝卡零件的需要，門的寬度尺寸在一般情況下要求略大于工作臺的寬 度，即把工作臺完全敞開。由于不同型號機床的工作臺尺寸差別較大，因 此門的造型也需要作較大的變化，以滿足操作人員的工作要求。對于工 作臺較小的機床一般采用單開門的結(jié)構(gòu)，而對于工作臺較寬的機床則多 選用雙開門。因為要把工作臺完全敞開，如果采用單門結(jié)構(gòu)，機床門的 體積過大，推拉操作較吃力，不便于使用，所以在大型的加工中心等機 床中雙開門的結(jié)構(gòu)較為常見。另外，在機床門的造型設(shè)計中，門的高度 尺寸也應(yīng)適當考慮。特別是在大型的加工中心的設(shè)計中，由于機床體量 大，門的高度尺寸要比普通機床大些。而且要考慮工件的吊裝等問題。 經(jīng)過考慮，為了節(jié)約空間，減小前防護的尺寸采用圓形雙開門形式。</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">2.4</span></span><span id="n1l1njb9b" class="23">前門軌道設(shè)計</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23">前門軌道采用滾輪滾動形式。門與滾道的接觸形式一般有摩擦式， 滾動式。摩擦式一般用于門比較輕的情況下進行滑動，而</span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">HDR</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">63</span></span><span id="n1l1njb9b" class="23">前防 護門比較大，所以采用滾動接觸形式。而滾動接觸形式有線接觸和點接 觸。由摩擦知道：線接觸摩擦系數(shù)大，滾動性能稍差，但受力好；點接觸 摩擦系數(shù)小，滾動性能好，當然受力也輕。但在一般中小型防護門上兩 者都可以采用。</span></p> <p class="230" style="margin-right:9.0pt;text-indent:19.0pt;line-height:11.3pt; mso-line-height-rule:exactly;background:transparent"><span id="n1l1njb9b" class="23">結(jié)合本廠材料與工藝。滾道選用</span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">6</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">mm</span></span><span id="n1l1njb9b" class="23">鋼板軋制而成的圓弧形狀。 滾輪選用滾動軸承。這樣滾輪就和滾道之間是線接觸。減少了摩擦力。 從而使開門更輕松。</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">2.5</span></span><span id="n1l1njb9b" class="23">前防護還有一個很重要的問題就是工作臺加工工件的鐵屑和噴 淋水的處理。本文的設(shè) 計思路是把鐵屑排進螺 旋排屑器里面，再由螺 旋排屑器把鐵屑排到水 箱里面。</span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">HDR</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">63</span></span><span id="n1l1njb9b" class="23">機床有 兩個螺旋排屑器，其上 面是開口的。</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"><span id="n1l1njb9b" class="23">選材也很重要。對于統(tǒng)_空間輪廓的造型而言，選用不同的才料， 在視覺識別上會有較大的差異，給人的心理感覺會有微妙的甚至顛覆 性的變化。材料質(zhì)感和激勵的來源是對材料性能的充分理解，材質(zhì)的 使用要力求均合材質(zhì)的加工工藝。加工工藝是指物質(zhì)材料轉(zhuǎn)變?yōu)樵O(shè)計 結(jié)果的技術(shù)過程。統(tǒng)</span><span id="n1l1njb9b" class="23"><span lang="EN-US">一</span></span><span id="n1l1njb9b" class="23">設(shè)計的外觀選用同</span><span id="n1l1njb9b" class="23"><span lang="EN-US">一</span></span><span id="n1l1njb9b" class="23">材料，而采用不同的加工工 藝，這種心理感覺仍會產(chǎn)生變化。加工中心防護板材的選用上：選用了 </span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">Q</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">235-</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">A</span></span><span id="n1l1njb9b" class="23">鋼板，防護板厚度一般在</span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">1.5</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">mm</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">,2</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">mm</span></span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">,2.5</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">mm</span></span><span id="n1l1njb9b" class="23"><span lang="EN-US">。</span></span><span id="n1l1njb9b" class="23">對于一般防護 遮板(比如支架的擋板不承受力</span><span id="n1l1njb9b" class="23"><span lang="EN-US">）</span></span><span id="n1l1njb9b" class="23">采用</span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">1.5</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">mm</span></span><span id="n1l1njb9b" class="23">薄板；一般的連接板起連 接作用承受</span><span id="n1l1njb9b" class="23"><span lang="EN-US">一</span></span><span id="n1l1njb9b" class="23">定的力，采用</span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">2</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">mm</span></span><span id="n1l1njb9b" class="23">的薄板；有些地方的防護罩要要有好的 焊接性，而且要承受很大的力，所以采用</span><span id="n1l1njb9b" class="23"><span style="font-family: SimSun;">2.5</span></span><span id="n1l1njb9b" class="23TimesNewRoman"><span lang="EN-US">mm</span></span><span id="n1l1njb9b" class="23">薄板；</span><span id="n1l1njb9b" class="23"><span lang="EN-US">一</span></span><span id="n1l1njb9b" class="23">些連接受力的 部分，采用角鋼，方鋼等型材或其焊接件。</span></p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"> </p> <p class="230" style="text-indent:19.0pt;line-height:11.3pt;mso-line-height-rule: exactly;background:transparent"> </p> <p class="MsoNormal"><span style="font-size:9.0pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">本文由伯特利數(shù)控整理發(fā)表文章均來自網(wǎng)絡(luò)僅供學(xué)習(xí)參考，轉(zhuǎn)載請注明！</span><span lang="EN-US" style="font-size:9.0pt"><o:p></o:p></span></p></div> <div id="n1l1njb9b" class="blank30"></div> <!-- tag --> <div id="n1l1njb9b" class="blank10"></div> 標簽： <a href='/index.php?case=tag&act=show&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a> <a href='/index.php?case=tag&act=show&tag=%E6%95%B0%E6%8E%A7%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>數(shù)控加工中心</a> <a href='/index.php?case=tag&act=show&tag=CNC%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' 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