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質問 For the adjustment of the stylus please refer to Q3 below.
答え Please download the figure below when actually confirming the amount of runout. It is easy to understand by writing measured values on the X and Y axes of the figure. Please stop the point finder attached to the machine at the main spindle fixed position [orientation position].
Point finder and centering gauge The swing type is a measuring instrument.Please check the correction value and repeat accuracy before use (This is called initial setting)

We can measure at ± 1 μm even if the runout is large.
Adjustment of stylus using a pick tester is strictly prohibited.

Pick tester's reaction force is 1N (100 gf) The point finder tilts with 0.15N (15 gf). It seems to be measuring, but it is only looking at the balance of the spring.
[Please see the diagram on the right and we explain the theory to you.]

I will explain the principle of the figure below.

Please print out the figure below and confirm that the position of the stylus is A zone, B zone, C zone, D zone.


↓ <* Document> For printout here ↓
PDF Illustration of the position of the stylus with respect to the XY axis

①Measure the X axis correction value.
Measure the fixed gauge block (block gauge) on the table. If it is difficult to fix the gauge block, you can use the base of the vise [fixed part].Reset the X axis value of the monitor at the position of the LED lights up. Then release it and turn off the LED.Next, spindle is rotated about 180 degrees (± 2 to 3 degrees does not appear in error) to rotate to point B and measure again. When the LED is lit, the position of 1/2 (0.01) of the value (0.02) displayed on the X axis of the monitor is the X axis correction value.

② Measure the Y axis correction value. Since it is difficult to install a gauge block (block gauge) in the Y axis direction, rotate the spindle by about -90 degrees (error of ± 2 to 3 degrees is acceptable) Please fill out the form so that you do not mistake [+ or - ].By doing this measurement in the same direction as the measurement on the X axis, the correction value on the Y axis can be obtained. The position of 1/2 of the movement distance of the X axis is the correction value of the Y axis.

③In actual measurement, be sure to perform the main spindle at the orienteering position.Input the value of X axis and Y axis to the offset of the machining center. Please fill out the form so that you do not mistake [+ rotation or - rotation].
If it is a machining center with "+ input (FANUC)" or "write (okuma)" function, the correction value of the coordinate of the end face is automatically entered when pressing the button when at the LED lights up.e end surface coordinate is automatically corrected.
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[Non-magnetic stylus]