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id="tpnrxl7j" class="title"> <h3><a>數控車上刀具 鉆頭 的對刀和夾具的設計<small></small></a></h3> </div> <!-- 頁面標題結束 --> <hr class="featurette-divider"> <!-- 中部開始 --> <div id="tpnrxl7j" class="container"> <!-- 正文 --> <div id="tpnrxl7j" class="lead" id="print"> <p> <span style="text-indent: 21pt; font-family: 宋體;">在普通車床上加工套類零件需要鉆孔時</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">通常是將鉆頭直接套在尾座套筒上</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">或附加變徑套或采用鉆夾頭等裝夾進行鉆孔</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">擴孔或鉸孔</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">工人的勞動強度比較大</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">生產效率比較低</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">隨著數控技術的發展</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">如今數控車床被廣泛應用</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">我國在</span><span lang="EN-US" style="text-indent: 21pt;"> 20 </span><span style="text-indent: 21pt; font-family: 宋體;">世紀七八十年代開始大力推廣</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">尤其是適合我國國情的經濟型數控系統</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">開始在機械制造等多個領域使用</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">但多數經濟型數控車床</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">其尾座不能自動控制運動</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">鉆孔</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">擴孔或鉸孔等操作跟普通車床一樣</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">如</span><span lang="EN-US" style="text-indent: 21pt;">CJK6132A </span><span style="text-indent: 21pt; font-family: 宋體;">型數控車床</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">這樣</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">在中</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">小批量生產套類零件時</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">其生產效率相對低下</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">工人的勞動強度大</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">加工質量難以保證</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">但通過自行設計一種專用夾具</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋體;">此類問題就能迎刃而解</span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">夾具設計的構思</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-bidi-font-family: 宋體;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">在加工過程中</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">數控車床刀架的動作是根據零件的輪廓軌跡和加工工藝要求</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">通過編程由數控系統進行自動控制的</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">那么</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">只要能設計一種專用夾具</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">讓鉆頭或鉸刀等刀具安裝在車床的刀架上</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">問題就迎刃而解了</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-bidi-font-family: 宋體;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">擬定夾具的結構方案</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-bidi-font-family: 宋體;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">刀具</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">鉆頭</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">的定位方案</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">定位方法和定位元件</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">為了便于專業化生產</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">鉆頭的結構</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">尺寸已標準化和系列化</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">為方便安裝使用</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">通常直徑小于</span><span lang="EN-US"> 16mm </span><span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">的鉆頭做成直柄</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">直徑大于</span><span lang="EN-US"> 16mm </span><span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">的鉆頭做成錐柄</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">這里所介紹的是直柄鉆頭的結構特征</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">應當選擇的是外圓柱表面為定位基準</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">采用定心夾緊裝置為定位元件</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">鉆頭如圖</span><span lang="EN-US"> 1 </span><span style="mso-bidi-font-size:10.5pt;font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋體;mso-font-kerning:0pt">所示</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-bidi-font-family:宋體; mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">刀具</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">鉆頭</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">的夾緊方案</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">夾緊方法和夾緊裝置</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">根據鉆頭在加工中的使用特點</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">鉆頭的軸線必須與被加工孔的旋轉軸線重合</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">根據</span><span lang="EN-US"><a target="_blank"><span lang="EN-US" style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">數控機床</span></a></span><span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">對夾具要求</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">即應具有可靠的夾緊力</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">具有較高的定位精度</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">具有較強的剛性</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">結構盡量簡單</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">以便于裝卸</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">鉆頭</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">和夾具在機床上的安裝</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">可采用已標準化的彈簧夾筒</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">即采用普通銑床上的銑刀彈簧夾筒</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">這樣可以滿足設計夾具</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">刀夾</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">要求</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">適應不同尺寸規格的直柄鉆頭</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋體;mso-font-kerning:0pt">該裝置是利用彈簧夾筒的彈性變形將鉆頭定心并夾緊的</span> <span style="mso-bidi-font-size:10.5pt; font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning:0pt">這只是作為過渡裝置用</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋體;mso-font-kerning: 0pt">彈簧夾筒如圖</span><span lang="EN-US"> 2 </span><span style="mso-bidi-font-size:10.5pt;font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋體;mso-font-kerning:0pt">所示</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋體;mso-bidi-font-family:宋體; mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">確定彈簧夾筒鉆孔夾具的結構</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">彈簧夾筒是該夾具中的主要元件</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">根據其構造特點</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">選擇彈簧夾筒</span><span lang="EN-US"> 7 24 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">的外圓錐表面為定位基準</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">夾具采用</span><span lang="EN-US"> 7 24 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">的內圓錐表面作為定位元件</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">工作原理如圖</span><span lang="EN-US"> 3 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">所示</span> <span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">當轉動螺釘</span><span lang="EN-US"> 1 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">時</span> <span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">使得彈簧夾筒</span><span lang="EN-US"> 3 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">向右移動在夾具體</span><span lang="EN-US"> 2 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">內圓錐表面的作用力下</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">彈簧夾筒的錐體部分收縮</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">最終使得鉆頭定心夾緊</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">彈簧夾筒鉆孔夾具在使用過程中</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span lang="EN-US"><img src="/upload/images/201406/14039721516591.jpg" alt="" /><br /> <!--[endif]--></span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span lang="EN-US"><br /> <!--[endif]--></span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span lang="EN-US"><img src="/upload/images/201406/14039721677098.jpg" alt="" /><br /> <!--[endif]--></span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">內圓錐表面是實現鉆頭定心和夾緊的主要工作表面</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">要求具有良好的耐磨性能</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">一</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">般</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">應</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">淬</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">硬</span><span lang="EN-US"> 50 ~55HRC </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">表</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">面</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">粗</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">糙</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">度</span><span lang="EN-US">Ra1.6 m </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">在彈簧夾筒刀柄槽滑過防轉銷</span><span lang="EN-US"> 5 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">時</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">為了避免彈簧夾筒在使用過程中</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">圓錐小端與夾具內圓錐孔小端發生不正常的干涉</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">可在內圓錐孔與內圓柱孔之間加段過渡孔</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">經濟型數控車床的刀架采用的是一種簡單的四工位自動換刀設備</span> <span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">只能安裝普通方形刀把</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">不能安裝回轉體刀柄的刀具</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">所以該夾具外形應做成方形</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">并按車床的中心高保證內圓錐孔軸線到夾具底面基準表面</span><span lang="EN-US"> A </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">的高度為</span><span lang="EN-US"> 20 0.005mm </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">考慮夾具能夠安裝在車床刀架上</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">結合刀架的實際結構</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">將刀夾設計為寬</span><span lang="EN-US"> 36mm </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">高</span><span lang="EN-US">38mm </span><span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">夾具</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">刀具裝配如圖</span><span lang="EN-US"> 3 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">所示</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">刀具</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">鉆頭</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">的對刀和夾具的安裝方案</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">鉆頭在垂直方向上的中心高</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">由夾具的本身結構尺寸保證</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">鉆頭在水平方向上的同心度</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">由夾具</span><span lang="EN-US"> 44 0.005mm </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">的外圓尺寸與間接的工件外圓尺寸</span><span lang="EN-US"> d </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">值及</span><span lang="EN-US"> a </span><span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">值</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">通過對刀</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">綜合得到數控車床</span><span lang="EN-US"> X </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">方向的對刀偏差值來確定</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">如圖</span><span lang="EN-US"> 4 </span><span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">所示</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">為了保證鉆頭軸線在使用時與工件軸線同軸</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">除上所述外</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">還需保證夾具安裝時</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">安裝基準面</span><span lang="EN-US">B</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">與車床軸線平行</span> <span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">用百分表校正</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">夾具總圖設計</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">根據夾具所確定的整體結構方案</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">正式繪制夾具總圖</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">如圖</span><span lang="EN-US"> 4 </span><span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">所示</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">夾具精度分析</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">該夾具在車床上加工孔時</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">對孔的精度影響較大的是同軸度孔的尺寸精度由刀具本身精度決定</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">對孔的同軸度分析計算</span><span lang="EN-US"> 1</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">基準不符誤差</span><span lang="EN-US"> B= D=0 2 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">夾具的安裝誤差</span><span lang="EN-US"> A </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">由于夾具定位面</span><span lang="EN-US"> A </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">與內圓錐孔軸線間的尺寸誤差</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">內圓錐孔軸線與主軸</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span lang="EN-US"><img src="/upload/images/201406/14039721828628.jpg" alt="" /><br /> <!--[endif]--></span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">軸線的平行度誤差等</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">會引起被加工孔的軸線同軸度超差</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">即</span><span lang="EN-US"> A=0.02mm 3 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">加工方法有關的誤差</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">對刀調整誤差</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">鉆頭的跳動</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">滑板的間隙等因素所引起的加工誤差</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">約為</span><span lang="EN-US"> 0.02mm </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">以上三項可</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">能</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">造</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">成</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">的</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">最</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">大</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">誤</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">差</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">為</span><span lang="EN-US">0.04mm</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">夾具的使用說明本夾具適用于無尾座運動控制功能的經濟型數控車床</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">如</span><span lang="EN-US"> CJK6132A </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">型</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">適用于孔徑小于</span><span lang="EN-US"> 16mm </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">的鉆孔</span> <span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">擴孔和鉸孔等場合</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">并且對孔的同軸度精度要求大于等于</span><span lang="EN-US"> 0.04mm </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">采用不同直徑的鉆頭鉆孔</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">擴孔等操作</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">要相應地選擇不同規格的彈簧夾筒</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">本夾具類似普通車刀一樣安裝在車床刀架上</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">安裝要時保證中心高</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">注意擦凈各定位面</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">以及用百分表校正鉆頭軸線與車床主軸軸線的平行度通過檢驗</span><span lang="EN-US"> B </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">面的平行度來控制</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">對刀時</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">可暫時不裝夾鉆具首先用外圓車刀車一刀工件外圓</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">通過測量出夾具體</span><span lang="EN-US"> 440.005mm </span><span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">外圓至工件外圓的距離</span><span lang="EN-US"> a </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">值</span> <span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">求得</span><span lang="EN-US"> X=d+2 22+a </span><span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">各參數如圖</span><span lang="EN-US"> 5 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">所示</span> <span style="font-family: 宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">再將</span><span lang="EN-US"> X </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">值輸入到相應的刀偏號中</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">再裝上鉆具注意擦凈內圓錐孔表面</span> <span style="font-family:宋體; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">移動刀架使鉆頭至工件端面中心處輕碰工件端面</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">在相應的刀偏號中輸入</span><span lang="EN-US"> Z=0 </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">夾具安裝時</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">各螺釘壓緊要適中</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">既要避免夾具變形</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">又要保證加工過程不能有松動現象</span> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">夾具的安裝如圖</span> <span style="font-family:宋體;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">所示</span></p> <p class="MsoNormal" align="center" style="margin-top:4.5pt;margin-right:0cm; margin-bottom:7.5pt;margin-left:0cm;text-align:center;line-height:13.5pt; mso-pagination:widow-orphan;mso-outline-level:1"><b><span style="mso-bidi-font-size: 10.5pt;font-family:宋體;mso-bidi-font-family:宋體;color:#666666;mso-font-kerning: 0pt">本文由<span lang="EN-US"> <a ><span lang="EN-US" style="color:#333333"><span lang="EN-US">伯特利數控</span></span></a></span>文章<span lang="EN-US"> </span>整理發表，文章來自網絡僅參考學習，本站不承擔任何法律責任。</span></b><span lang="EN-US" style="font-family: 微軟雅黑;"><o:p></o:p></span></p> <p class="MsoNormal" align="center" style="text-align:center;text-indent:21.0pt; 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