➀Purpose
Conventional in-machine measuring systems used incident light (light from above) to observe workpieces; however,
since the edges on the top surface tend to become rounded after electrical discharge machining,
the edges of the workpiece were difficult to see during measurement,
requiring manual adjustment (dimming) of the light intensity and angle each time.
As a result, the following issues arose:
・Light adjustment took a long time
・Measurement accuracy varied (differing depending on the operator)
Consequently, reducing the time spent on light adjustment and stabilizing measurement accuracy became major challenges.
②Key Points for Implementation
The new lineup features a transmitted light system.
This allows users to switch the observation method from “incident light” (illuminating from above)
to “transmitted light” (projecting from below).
Transmitted light makes the edges of the workpiece clearly visible, making measurement easier.
③Examples
We measured and inspected the edges of the machined gear workpiece.
④Results
Previously, there was some variation in measurement accuracy, but with the introduction of transmitted lighting,
we are now able to achieve stable measurements within ±2 μm.
In addition, the need to “raise and lower the lighting to locate the edge”—a task that was previously required—has been virtually eliminated,
significantly reducing the time and effort required for lighting adjustments.
*This product will be on display at “Monozukuri World 2025,”
to be held at Makuhari Messe from Wednesday, July 9 to Thursday, July 10, 2025,
featuring a live demonstration of a Makino milling machine equipped with wire EDM technology.
We invite you to visit the venue and see its performance firsthand!
