New end mill sharpener (5)

First, the grinding machine is charged with a compressed gas of not less than 0.6 MPa. At this time, the resistance of the spindle is very small to ensure the spindle precision and the spindle movement are stable. Install a suitable 5C collet to clamp the end mill to be ground, adjust the position of the tip so that the tip is placed in the spiral groove at the end of the end mill, and then fix the top point. Because the tip is at the same height as the tool center, At this time, the end edge is horizontal (Figure 11). Gently push the spindle in the axial direction. Be careful to keep the tip in contact with the end mill. At this time, the tip will guide in the spiral groove of the end mill. The spindle and the end mill will make a spiral motion. This is the grinding. The required trajectory of the spiral blade. Adjust the inclination of the grinding wheel according to the back angle of the end mill and start grinding so that the spiral edge with the back angle can be ground. After grinding a spiral blade, do not move the grinding head, and then place the other blade on the top. Also, the top guide is used to finish all the spiral edges in turn. In addition, when grinding the end edge, the spindle seat can be adjusted so that the end cutter of the end mill faces the grinding wheel and is completed by the linear motion of the table.

Figure 11

For more articles, please refer to "Metal Processing" Cold Processing 2008 No. 1

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