公开(公告)号：US5921847A

公开(公告)日：1999-07-13

申请号：US935451

申请日：1997-09-24

Applicant: Robert P. Laflamme

Inventor： Robert P. Laflamme

IPC: B23C5/20 ,  B24B3/34 ,  B24B1/00 ,  B24B19/00 ,  B24B41/06

CPC classification number: B24B3/343 ,  B23C5/207 ,  B23C2200/123 ,  B23C2200/201

Abstract: A swing grinding fixture and process for using the same is disclosed that enables a conventional surface grinder to remanufacture a machine tool cutting insert by grinding a predetermined shape into the insert. A quick clamping insert holder coupled to a slide secures the tool insert in the fixture. A precision spindle cartridge is mounted in a rigid fixture body and coupled to the slide to provide the swing motion required to generate the radius to be ground. The rigid fixture body includes a pair of micrometer adjustable stops which limit the arc through which the slide may be swung and control the flank shape ground into the insert. In an alternative embodiment, a sine plate is attached to the fixture body and is used to incline the fixture to a predetermined insert rake angle. In operation, the grinding fixture is securely mounted to the table of a surface grinder and a cutting tool insert is secured in the insert holder. The grinding table is manipulated to align the grinding wheel with the axis of rotation of the spindle and the position of the insert is adjusted to manipulate the amount of material to be ground from the insert. The slide is then swung clockwise to contact one micrometer adjustable stop and counterclockwise to contact a second micrometer stop, whereby a predetermined radius, substantially equal to the radius of rotation, is ground into the edge of the tool insert.

Abstract translation: 公开了一种摆动研磨夹具及其使用方法，其使得常规的平面磨床能够通过将预定形状研磨到刀片中来再制造机床切削刀片。 联接到滑块的快速夹紧插入物保持器将工具插入件固定在固定装置中。 精密主轴筒安装在刚性夹具主体中并联接到滑块以提供产生待研磨半径所需的摆动运动。 刚性夹具主体包括一对千分尺可调节止动件，其限制了滑动件可摆动的电弧，并将侧面形状的底面控制到插入件中。 在替代实施例中，正弦板附接到固定装置主体并且用于将固定件倾斜到预定的插入前倾角。 在操作中，研磨夹具牢固地安装到平面磨床的工作台上，并且切削工具刀片固定在刀片架中。 操作研磨台以将砂轮与主轴的旋转轴线对准，并且调整刀片的位置以操纵从刀片研磨的材料的量。 然后滑动件顺时针摆动以接触一微米可调节止动件和逆时针以接触第二千分尺止动器，由此基本上等于旋转半径的预定半径被研磨成工具插入件的边缘。

公开(公告)号：US5921719A

公开(公告)日：1999-07-13

申请号：US912627

申请日：1997-08-18

Applicant: Robert P. Laflamme

Inventor： Robert P. Laflamme

IPC: B23C5/10 ,  B23C5/20 ,  B23C5/22

CPC classification number: B23C5/109 ,  B23C5/207 ,  B23C5/2243 ,  B23C2200/085 ,  B23C2200/123 ,  B23C2200/125 ,  B23C2200/203 ,  B23C2200/205 ,  Y10T407/192 ,  Y10T407/1938 ,  Y10T407/1942 ,  Y10T407/1946

Abstract: A cutting tool insert holder apparatus comprising a milling cutter body with at least one flute and a clamp to secure the insert in the holder and dimensioned to be held by a metal cutting milling machine. The flute is disposed at one end of the body and comprises a pocket dimensioned to accept a rhomboid-shaped cutting insert having a top rake angle and a substantially flat surface in the clamping area, a threaded hole dimensioned to accommodate a clamp screw, a pivot cavity dimensioned to accommodate a pivot of a clamp, and dimensioned to allow tipping of the clamp. In the preferred embodiment, the clamp is sized to accommodate a rhomboid-shaped insert of a specific size and shape and comprises a contact surface dimensioned to contact the flat surface of the cutting insert, a clamp screw hole dimensioned to accommodate the clamp screw and having a centerline which is offset from the centerline of the threaded hole in the flute, a clamp screw dimensioned to pass through the clamp screw hole and be secured in the threaded hole in the flute, a pivot having a radial form dimensioned to mate with the pivot cavity of the flute to prevent axial motion of the clamp when said clamp screw is engaged and to allow the clamp to be tipped to permit indexing of the cutting insert when the clamp screw is released. In operation, the cutting insert is indexed by loosening the clamp screw one-half turn such that the clamp screw remains in the clamp screw hole, tipping the clamp, removing the cutting insert from the pocket, rotating the cutting insert 180.degree., placing the cutting insert back into the pocket, and securing the cutting insert into the pocket by tightening the clamp screw one-half turn.

Abstract translation: 一种切削刀具刀片保持器装置，包括具有至少一个凹槽的铣刀本体和夹具，以将刀片固定在保持器中并且尺寸设计成由金属切削铣床保持。 凹槽设置在主体的一端，并且包括尺寸适于接纳在夹紧区域中具有顶前倾角和基本上平坦的表面的菱形切削刀片的口袋，尺寸适于容纳夹紧螺钉的螺纹孔，枢轴 其尺寸适于容纳夹具的枢轴，并且尺寸设计成允许夹具倾斜。 在优选实施例中，夹具的尺寸适于容纳特定尺寸和形状的菱形插入件，并且包括尺寸适于接触切削刀片的平坦表面的接触表面，夹紧螺钉孔，其尺寸适于容纳夹紧螺钉并具有 中心线，其偏离所述槽中的螺纹孔的中心线，夹紧螺钉的尺寸设置成穿过所述夹紧螺钉孔并固定在所述凹槽中的螺纹孔中;枢轴，具有径向尺寸以与所述枢轴相配合 所述槽的空腔以防止所述夹紧螺钉接合时所述夹具的轴向运动，并且允许所述夹具倾斜以允许所述夹紧螺钉被释放时所述切削刀片的分度。 在操作中，切削刀片通过松开夹紧螺钉二分之一转弯，使得夹紧螺钉保持在夹紧螺钉孔中，夹紧夹具，将切削刀片从口袋中取出，将切削刀片旋转180度，将 将切削刀片重新插入口袋中，并通过将夹紧螺丝拧紧两半圈将切削刀片固定在口袋中。