121
试切
TEST CUTTING
17 试切
TEST CUTTING
切削刀具沿着编程刀具路径移动时，受切削力、刀具偏差、刀
尖形状和刀尖磨损的影响，有时候可能不按要求的精度完成工
件的加工。在这种情况下，编程路径最好能与 X、Y 和 Z 轴平行
移位，以在允许公差内完成工件的加工。平行移位量作为刀具
磨损偏移量输入。
When the cutting tool moves along the programmed tool path,
it may sometimes not be possible to finish the workpiece within
the required accuracy due to cutting resistance, tool deflection,
tool nose shape, and wear of the tool tip. In such cases, the
programmed path should be shifted parallel to the X-, Y-, and
Z-axes to finish the workpiece within the specified tolerance.
The parallel shift amount is to be input as the tool wear offset
amount.
17-1 执行试切前的检查项目
Check Items before Executing Test Cutting
< 检查项目 > <Check Items>
1. 将门联锁功能设置为“ 有效 ”。 1. The door interlock function is set to “ valid ”.
2. 关闭前门。 2. The front door is closed.
3. 打开单个程序块功能。 3. The single block function is turned on.
4. 设置合适的切削条件（切削深度、切削宽度、进给速度、主
轴转速）。
4. The cutting conditions (depth of cut, width of cut, feedrate,
and spindle speed) are set properly.
5. 根据工件的形状和材质，确定加工工序和工艺过程。 5. The order of machining and machining processes have
been determined in accordance with the shape and
material of the workpiece.
6. 选择合适的切削刀具。 6. The cutting tools have been selected properly.
7. 选择正确的夹具。 7. The selection of fixture is correct.
8. 工件装夹方法正确。 8. The workpiece clamping method is correct.
9. 可观察切削过程。 9. The progress of cutting can be observed.
10. 切削油用量和方向正确。 10. Coolant supply volume and direction are correct.
11. 切削刀具与工件和夹具不发生干涉。 11. The cutting tools are free of interference with the workpiece
and fixtures.
12. 正确设置进给倍率和快进倍率。 12. The settings for feedrate override and rapid traverse rate
override are correct.
13. 必要时可以立即停止机床。 13. The machine can be stopped immediately when necessary.
14. 粗加工后测量尺寸。 14. The dimensions are measured after the rough machining.
17-2 尺寸测量检查项目
Dimension Measurement Check Items
< 检查项目 > <Check Items>
1. 测量仪器功能正常。 1. The measuring instrument is functioning correctly.
2. 测量仪器选择正确。 2. The choice of measuring instrument is correct.
3. 测量顺序正确。 3. The measuring order is correct.
4. 测量方法合适。 4. The measuring method is appropriate.
5. 待测区域清晰标出。 5. The area to be measured is indicated clearly.
6. 待测区域不能有切屑和切削油。 6. The area to be measured is free of chips and coolant.
7. 粗加工后的尺寸测量已完成。 7. The dimensions after rough machining have been
measured.
8. 尺寸测量时工件已冷却。 8. The workpiece is cool when the dimensions are measured.
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