ねじゲージで合格を狙いたい。工具径補正値の調整によるその手順とは？＜スレッドミル＞

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I want to pass with a screw gauge. What is the procedure for adjusting the tool diameter correction value? < Thread Mill>

If you select "Cutting Edge Reference" when creating a program with ThreadPro, a program creation app for thread mills, you can create an adjustable program to pass the inspection with a screw gauge by simply changing the value of the tool diameter correction without changing the program. At that time, RPRG, which is the tool radius correction value (reference value) that aims to pass the thread gauge of the selected thread accuracy, is displayed. By using this, you can aim to pass the gauge with a small amount of adjustment. If the gauge still does not pass, check whether the thread gauge test passes while adjusting the tool diameter correction value by 0.02~0.03 from there.

* For the solid type (for female threads), the RPRG when machining the minimum machining diameter (thread accuracy 5H) is displayed on the actual product. If you want to machine a thread size larger than the minimum machining diameter or other thread accuracy, enter the RPRG value displayed in Thread Pro in the diameter correction area.

What is RPRG?

When looking for a tool diameter correction value that the gauge accepts, be careful not to remove the workpiece from the machine. This is because once the workpiece is removed, the position will shift and the result of adjusting the tool diameter correction will not be able to be judged correctly.

In the case of internal threads

・If the plug gauge on the street side stops (if the finish of the female thread is small), the trajectory of the arc of the tool will move significantly by reducing the tool diameter correction value displayed in ThreadPro, so you can adjust the screw to a larger screw.

・When the plug gauge on the stop side passes through (when the finish of the internal thread is large), the trajectory of the arc of the tool moves small by increasing the tool diameter correction value, so it can be adjusted to a smaller screw.

For external thread

・When the ring gauge on the street side stops (when the external thread finish is large), the tool diameter correction value displayed by ThreadPro can be reduced to move the arc trajectory of the tool to a smaller external thread .

・ When the ring gauge on the stop side passes through (when the finish of the external thread is small), the trajectory of the arc of the tool moves greatly by increasing the tool diameter correction value, so it can be adjusted to a larger screw.

(FAQID:185)

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ねじゲージで合格を狙いたい。工具径補正値の調整によるその手順とは？＜スレッドミル＞ | オーエスジー

I want to pass with a screw gauge. What is the procedure for adjusting the tool diameter correction value? < Thread Mill>