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</div> <!--/sub_menu--><!-- 面包屑導航結束 --> <!-- 頁面標題開始 --> <div id="n1l1njb9b" class="title"> <h3><a>振動對數(shù)控機床進給系統(tǒng)爬行的影響-目的和意義<small></small></a></h3> </div> <!-- 頁面標題結束 --> <hr class="featurette-divider"> <!-- 中部開始 --> <div id="n1l1njb9b" class="container"> <!-- 正文 --> <div id="n1l1njb9b" class="lead" id="print"> <p> <span id="n1l1njb9b" class="17" style="line-height: 30.7pt; text-indent: 0pt; font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">1.2</span><span style="line-height: 30.7pt; text-indent: 0pt; font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">課題研宄目的和意義</span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 0pt; line-height: 30.7pt;"><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">1.2.1</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">課題研究的目的</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">數(shù)控機床可以加工復雜型面、加工精度高、質量穩(wěn)定、有利于現(xiàn)代化生產。機床各 部件相互配合，最終共同完成機械執(zhí)行機構的移動、轉動、夾緊、松開、變速和換刀等</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 0pt; line-height: 21.85pt;"><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">各種動作來實現(xiàn)切削加工的任務</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt; vertical-align: super;">[2]</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">。數(shù)控機床在低速運動或重載情況下出現(xiàn)爬行時，會 破壞數(shù)控機床運動的準確性、均勻性，影響數(shù)控機床的定位精度和加工精度，甚至產生 廢品和事故，這對企業(yè)來說是不可估量的損失。根據(jù)數(shù)控機床出現(xiàn)爬行的現(xiàn)象機理分析 后，能夠發(fā)現(xiàn)導致爬行的因素有很多，在機械傳動部分中，由摩擦引起的振動對爬行的 影響是比較大的，故研宄振動對數(shù)控機床進給系統(tǒng)爬行的影響對減少爬行發(fā)生的幾率和 提高數(shù)控機床的精度有很大幫助。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 0pt; line-height: 11pt;"><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">1.2.2</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">課題研宄的意義</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">目前，德國、美國和日本等發(fā)達國家的數(shù)控機床質量及性能良好，先進實用。尤其 在大型、重型和精密數(shù)控機床方面發(fā)展要比我國快很多。我國的數(shù)控機床在穩(wěn)定性、可 靠性和無故障方面和外國高檔數(shù)控機床相比還有一定的差距。若能改善數(shù)控機床在低速 行進時產生的爬行，我國數(shù)控機床將步入新的層次。數(shù)控機床的爬行問題是提高數(shù)控機 床加工精度的重要課題之一，也是國民經濟、科學研宄及國防建設的重要課題。研究振 動對爬行現(xiàn)象的影響，對揭示爬行的內在規(guī)律、分析機床低速運動時的平穩(wěn)性和探尋新 的領域來解決爬行的措施都是必不可少的。本課題研宄的內容對數(shù)控機床發(fā)展的意義主 要表現(xiàn)在四個方面：</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><!--[if !supportLists]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">(1) </span><!--[endif]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">提高數(shù)控機床精度。研宄爬行機理、導致產生爬行產生的各種因素和防爬措施 是找到抑制爬行新方法的前提，根據(jù)抑制爬行的新方法，會進一步提高數(shù)控機床的精度 等級。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><!--[if !supportLists]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">(2) </span><!--[endif]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">節(jié)省成本。利用</span><span id="n1l1njb9b" class="18" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">ADAMS</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">軟件分析外加振動和</span><span id="n1l1njb9b" class="18" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">控制系統(tǒng)對爬行的影響，可 以在</span><span id="n1l1njb9b" class="18" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">View</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">虛擬界面中真實地模擬系統(tǒng)的運動，由于簡化后的爬行系統(tǒng)模型相對比較簡單， 可以直接在</span><span id="n1l1njb9b" class="18" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">View</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">中建模，然后不斷修改設計缺陷以改進系統(tǒng)，直到獲得最滿意的設計方 案，最終能夠做出比較理想的物理樣機。所以在</span><span id="n1l1njb9b" class="18" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">ADAMS</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">平臺中直接對爬行的仿真模型 進行分析，節(jié)約了大量在現(xiàn)實生活中加工樣機、改進樣機的時間和成本，給企業(yè)增加了 利潤。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><!--[if !supportLists]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">(3) </span><!--[endif]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">改善勞動環(huán)境。數(shù)控機床在重載時出現(xiàn)爬行，前期機床運動不平穩(wěn)時會產生噪 音，對聲音造成環(huán)境污染，對勞動者身體有傷害。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><!--[if !supportLists]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">(4) </span><!--[endif]--><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;">延長機器使用壽命。機床導軌出現(xiàn)嚴重爬行時，會導致機床喪失加工能力，產 生廢品、造成停機現(xiàn)象，對數(shù)控機床損害嚴重。</span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"> </p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-size:9.0pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">本文采摘自“振動對數(shù)控機床進給系統(tǒng)爬行的影響”，因為編輯困難導致有些函數(shù)、表格、圖片、內容無法顯示，有需要者可以在網(wǎng)絡中查找相關文章！本文由伯特利數(shù)控整理發(fā)表文章均來自網(wǎng)絡僅供學習參考，轉載請注明！</span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 11pt;"><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 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