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Functional Inspection of Precision Tweezers

A personal-care tool manufacturer needed repeatable functional checks of precision tweezers. Qualitas combined controlled part positioning, closing-force feedback and image analysis to evaluate how the tool functions, display the result and sort accepted and rejected parts.

The challenge

What needed solving

Functional inspection needs consistent part positioning and closing conditions. Applying these conditions by hand makes it harder to compare results from one part to the next.

The solution

How Qualitas solved it

A rotating fixture presents each tweezer for imaging under controlled closing conditions. Force feedback, cameras and lighting work together to support repeatable functional checks. EagleEye evaluates the images against the selected product requirements and sends the result to the sorting mechanism.

The part being inspected

Straight and curved tweezers — representative part photograph.

Functional checks under controlled conditions

Inspection machine with rotating fixture, cameras and lighting.
Camera optics, part holder and controlled closing mechanism.

The inspection evaluates the closing response and contact behaviour of the tweezer under controlled force. Images from multiple orientations provide the information needed to assess its gripping function against the selected product requirements.

The operator loads the part and selects its recipe. A rotating fixture controls presentation, while a pressing mechanism and load-cell feedback control the closing conditions. Cameras and controlled lighting capture the inspection views for image analysis.

From functional assessment to sorting

  • Select the product recipe and load the part.
  • Present the part for imaging under controlled closing conditions.
  • Evaluate the functional checks against the selected acceptance requirements.
  • Display the pass/fail result and route accepted and rejected parts to separate bins.

The operator interface shows the part result and accepted/rejected counts. Manual mode uses an operator trigger; automatic mode starts from the component-presence sensor.

Consistent checks and reviewable records

Delivered capabilityPractical value
Controlled presentation and force feedbackRepeatable conditions for functional assessment.
Five inspection images per partMultiple views under the required inspection conditions.
Three product recipesSettings selected for the product being manufactured.
Automatic sortingAccepted and rejected parts routed to separate bins.
Saved images and filtered reportsInspection history available for quality review.

Reports can be filtered by date, product model and shift, then exported for review. This lets the quality team compare inspection decisions over a production period.

Discuss functional inspection for your tools

Share the part type, product variants, functional requirements and required cycle time. We can assess the handling, force control, imaging and validation approach needed for a repeatable inspection.

Share your part type, product variants, functional requirements and required cycle time.

Request project details

Need a similar vision system on your line?

Share your parts, required checks and production conditions. Our engineers can assess the imaging, inspection approach and integration.