专利详细信息

用于成形麻花钻螺旋槽的加工方法

文献类型：专利

专利类型：发明专利

是否失效：否

是否授权：否

申请号：CN201310694280.6

申请日：20131216

发明人：张伟胡建忠贺凤宝王林静

申请人：大连吉瑞刀具技术股份有限公司

申请人地址：116000 辽宁省大连市高新区高新街3号

公开日：20140312

公开号：CN103624653A

代理人：孙彬

代理机构：32225 常州市科谊专利代理事务所

语　　种：中文

摘　　要：本发明公开了一种用于成形麻花钻螺旋槽的加工方法，该方法的步骤如下：确定被加工麻花钻的几何参数：径向前角γ和半芯厚r<Sub>w</Sub>；确定直圆柱砂轮的砂轮半径r和安装角β；确定被加工麻花钻的轴向为Z向、其底端平面为XY面，底端中心为坐标原点，并根据半芯厚r<Sub>w</Sub>、砂轮半径r和安装角β，确定直圆柱砂轮的底端面中心的X向偏移量ΔX、Y向偏移量ΔY和Z向偏移量ΔZ；根据ΔX、ΔY和ΔZ，在数控机床上确定直圆柱砂轮的坐标，并调整直圆柱砂轮的安装位置，启动直圆柱砂轮旋转，将被加工麻花钻Z向前移，加工出所需要的螺旋槽。它可以直接使用直圆柱砂轮加工麻花钻的螺旋槽，减少了加工槽时对经验数据的依赖，又避免了繁难的计算，简单方便，可靠性好，磨削精度高。

主权项：1.一种用于成形麻花钻螺旋槽的加工方法，其特征在于该方法的步骤如下：1）确定被加工麻花钻的几何参数：径向前角γ和半芯厚r_w；2）确定直圆柱砂轮的砂轮半径r和安装角β；其中，安装角β为直圆柱砂轮的轴线与被加工麻花钻的轴线之间的夹角，并保证直圆柱砂轮的斜向与螺旋槽的旋向保持一致；3）确定被加工麻花钻的轴向为Z向、其底端平面为XY面，底端中心为坐标原点，并根据半芯厚r_w、砂轮半径r和安装角β，确定直圆柱砂轮的底端面中心的X向偏移量ΔX、Y向偏移量ΔY和Z向偏移量ΔZ，计算公式分别如下： $<math> <mrow> <mi>ΔX</mi> <mo>=</mo> <mrow> <mo>(</mo> <mi>r</mi> <mo>+</mo> <msub> <mi>r</mi> <mi>w</mi> </msub> <mo>×</mo> <mi>cos</mi> <mi>β</mi> <mo>/</mo> <msqrt> <mn>1</mn> <mo>-</mo> <msup> <mi>sin</mi> <mn>2</mn> </msup> <mi>β</mi> <msup> <mi>cos</mi> <mn>2</mn> </msup> <mi>t</mi> </msqrt> <mo>)</mo> </mrow> <mo>×</mo> <mi>cos</mi> <mi>t</mi> <mo>;</mo> </mrow></math>$ $<math> <mrow> <mi>ΔY</mi> <mo>=</mo> <mrow> <mo>(</mo> <mi>r</mi> <mo>/</mo> <mi>tan</mi> <mi>β</mi> <mo>+</mo> <msub> <mi>r</mi> <mi>w</mi> </msub> <mo>/</mo> <msqrt> <msup> <mi>sin</mi> <mn>2</mn> </msup> <mi>β</mi> <mo>-</mo> <msup> <mi>sin</mi> <mn>4</mn> </msup> <mi>β</mi> <mo>×</mo> <msup> <mi>cos</mi> <mn>2</mn> </msup> <mi>t</mi> </p><p class='subject'><strong>关键词：</strong>圆柱砂轮加工麻花 <b class='type_ico_id'></b>螺旋槽偏移量砂轮半径底端端面中心几何参数加工方法简单方便 <b class='type_ico_id'></b>经验数据坐标原点 <b class='type_ico_id'></b>数控机床加工槽 <b class='type_ico_id'></b>麻花钻成形磨削 <b class='type_ico_id'></b>轴向旋转依赖 </p><p class='class'><strong>IPC专利分类号：</strong>B24B19/02(20060101)</p>
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