Measuring the dimensions of a snap-fit mechanism

Measuring the dimensions of a snap-fit mechanism

When snap-fit mechanisms for supporting parts on a resin plate are improperly shaped, their tips can break off (resulting in a short shot). You wish to detect defects by measuring the dimensions of the snap-fit mechanism (angle and height) (Required precision: ±20 μm)

[Issue] Variability in the resin surface

Unless an expensive model is used, contactless sensors don’t yield stable readings due to the effects of variability of the resin surface (due to variations in luster and minuscule bumps and crevices on the surface).

[Solution] Use an HG-S Series Contact-type Digital Displacement Sensor to measure the angle and height of snap-fit mechanisms on the resin plate.

Use an HG-S Series Contact-type Digital Displacement Sensor to reliably detect the edges of the snap-fit mechanisms and measure their height.

Contact type

The contact-type sensor can make measurements without being affected by surface luster or contaminants like oil.

Roller-type probe and bending-resistant cable

By using a roller-type probe and bending-resistant cable, the sensor is able to make measurements while the head is moved and thereby trace the shape of the snap-fit mechanism.

High-precision measurement　

With resolution of 0.1 μm 0.004 mil and indication precision of 1.0 μm or less across all ranges, the sensor delivers high-precision measurement!

(When using the HG-S1110□ high-precision sensor head)

Stable detection　　

Since the sensor is a contact-type device, it’s capable of stable measurement without being affected by the condition of the surface, for example in terms of color, luster, or roughness!