A machine tool for machining circular curved surfaces is provided with a horizontal rotary table (6) and a power head device is arranged on the surface of the table (6). The workpiece (13) clamped on the chuck (12) of the power head device is displaced by a combination of two sets of trailer mechanisms on the base and a screw pair mechanism (7, 8), and the workpiece (13) is moved in the same position as the center (Q') of the circular curved surface. When the chuck (12) rotates, the center (Q) of the worktable (6) rotates vertically and simultaneously with (Q') up and down, resulting in the grinding wheel (14) grinding the whole surface of the arc curved surface by the grinding head device. Supporting rack plate (19). A grinding head device is mounted. Two sets of trailer mechanism combinations and screw pair mechanisms (17, 18) move and adjust the high-speed rotating grinding wheel (14) outer circle to contact the arc surface of workpiece (13) and gradually feed to complete high-precision machining. It is characterized in that the workpiece (13) is rotated by the CVT in the chuck at a suitable rotating speed, and the arc surface of the workpiece (13) coincides with the center of the arc surface (Q') perpendicular to the center of the rotary table (6), so that the concentric circle is rotated synchronously. The arc surface of the workpiece (13) deviates from the axis of rotation is processed completely to solve each problem. The arc surface machining machine tool and the new process method are created, and the high efficiency production is realized.
【技术实现步骤摘要】
圆弧曲面加工机床
一种圆弧曲面加工机床,具有无级变速器和蜗杆蜗轮减速机传动了作水平面上往复回转的工作台,台面上设有动力装置,有夹盘将工件受到无级变速器传动自转。支承架板上安装磨头装置,其底座有二套拖板机构组合与螺杆副机构,移动而调整磨头装置中转动的砂轮与工件的圆弧曲面相接触并自转中进行磨加工。由于动力头装置的底座有二套90°水平角拖板机构组合与螺杆副机构,位移调整动力头装置相对于工作台回转中心使工件的圆弧曲面圆心点轴线与工作台中心构成上下垂直又重合作同心圆回转,形成工件的圆弧曲面在以工件自转又以其圆弧圆心按工作台中心回转着受到磨头装置的砂轮磨加工,达到整个圆弧曲面表面尺寸和精度要求。
技术介绍
通常磨床加工圆柱或球面,而工件上的内外圆弧曲面的圆心偏离自转轴线其加工需要自转转动与回转位移复合加工。对于工件的圆角圆心偏离了自转中心线,且圆角半径较小,车削加工精度难符合性能要求,普通磨床不适合加工而创造了圆弧曲面加工机床。
技术实现思路
一种圆弧曲面加工机床,具有水平面作往复回转工作台,由大变速比无级变速器和蜗杆蜗轮减速机传动将工作台缓慢平稳回转。工作台面上设有动力头装置,其底座有二套拖板机构组合与螺杆副机构,在水平面上成90°交角,调整移动将动力头装置上夹盘中工件的圆弧曲面圆心位移至垂直于工作台回转中心点上,作同心圆同步回转。由动力头装置的无级变速传动了夹盘和工件的适合自转转速。支承架板上安装磨头装置,其底座有二套拖板机构组合与螺杆副机构,调整移动将砂轮的外圆与工件圆弧曲面相接触,当砂轮受到电机和高速带传动转动,产生与圆弧曲面上的磨加工。螺杆副的转动而位移砂轮作手 ...
【技术保护点】
1.一种圆弧曲面加工机床,具有无级变速器(4)和蜗杆蜗轮减速机(5)传动,带动工作台(6)作水平面上往复回转,工作台(6)台面上装有动力头装置,其底座有二套拖板机构组合与螺杆副机构(7、8),螺杆转动移动了动力头装置在工作台(6)上的位置,使夹盘(12)中工件(13)的圆弧曲面圆心(Q′)与工作台(6)回转中心(Q)上下两点相垂直而重合,工作台(6)作回转即与工件(13)的圆弧曲面绕其圆心(Q′、Q)同心圆同步回转;支承架板(19)上安装磨头装置,电机(15)、高速带(16)传动了砂轮(14)而转动,其外圆与工件(13)的圆弧曲面相接触而相对转动产生磨加工;当工件(13)的圆弧曲面与工作台均以圆心(Q′、Q)回转时,圆弧曲面按回转半径(r)移动与砂轮(14)的外圆将整个圆弧曲面磨加工;磨头装置底座有二套拖板机构组合与螺杆副机构(17、18),螺杆副的转动与移动控制了砂轮(14)对工件(13)圆弧曲面的进给加工,直至全部圆弧曲面达到尺寸和精度要求;其特征是工件(13)装在夹盘(12)中受无级变速器(9)传动与中心轴同速自转,圆弧曲面与砂轮(14)外圆产生磨加工,同时工件(13)以圆弧曲面 ...
【技术特征摘要】
1.一种圆弧曲面加工机床,具有无级变速器(4)和蜗杆蜗轮减速机(5)传动,带动工作台(6)作水平面上往复回转,工作台(6)台面上装有动力头装置,其底座有二套拖板机构组合与螺杆副机构(7、8),螺杆转动移动了动力头装置在工作台(6)上的位置,使夹盘(12)中工件(13)的圆弧曲面圆心(Q′)与工作台(6)回转中心(Q)上下两点相垂直而重合,工作台(6)作回转即与工件(13)的圆弧曲面绕其圆心(Q′、Q)同心圆同步回转;支承架板(19)上安装磨头装置,电机(15)、高速带(16)传动了砂轮(14)而转动,其外圆与工件(13)的圆弧曲面相接触而相对转动产生磨加工;当工件(13)的圆弧曲面与工作台均以圆心(Q′、Q)回转时,圆弧曲面按回转半径(r)移动与砂轮(14)的外圆将整个圆弧曲面磨加工;磨头装置底座有二套拖板机构组合与螺杆副机构(17、...
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