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图示工具用于磨制梯形廓形的拉刀时对砂轮截形进行修整。带有金刚石笔的杆2固定在轴4上,轴4安装在体1中间部位的滑动轴承5里。通过小齿轮6、9和齿条8,使两侧的导板10带着另两支金刚石笔沿直线运动。因此,转动手柄7,三支金刚石笔3便可同步动作,分别沿着直线和圆弧对砂轮的两侧和圆周同时进行修整。适当选择砂轮直径以及利用可互换的杆2,可使此工具用于磨制直径为40～100毫米的拉刀时,对砂轮截形进行修整。调整时,金刚石笔的安装及伸出尺寸H可按专用样板,并通过下式计算来确
Pictorial tools are used to trim the grinding wheel truncation when grinding a trapezoidal profile broach. A rod 2 with a diamond pen is fixed to a shaft 4 which is mounted in a plain bearing 5 in the middle of the body 1. Through the pinions 6, 9 and the rack 8, the guide plates 10 on both sides are linearly moved with two other diamond pens. Therefore, when the handle 7 is rotated, the three diamond pens 3 can move synchronously to trim both sides and the circumference of the grinding wheel along the straight line and the circular arc respectively. Appropriate choice of wheel diameter and the use of interchangeable rod 2 allows the tool to be used to grind a 40 to 100 mm diameter broach to trim the wheel. Adjustment, diamond pen installation and out of size H can be a dedicated model, and calculated by the following formula