Automated visual inspection on a camshaft production line

The challenge

Manual inspection of camshafts was slow and inconsistent, and linking defects to individual serial numbers for traceability depended on paperwork.

What we built

• Bounding-box annotation of serial-number regions and polygon masks for scratches, casting marks and dents.
• A two-stage pipeline: a detector localizes the serial plate and defects, then OCR reads the serial while a classifier grades severity.
• Every inspected part logged with serial number, defect class and pass/fail, exportable for SPC dashboards and audits.

Results

• Traceability from serial number to defect record
• Reduced manual QC effort on the line
• Data ready for SPC dashboards and customer audits