Short answer: Small સ્ટેમ્પ કરેલા ભાગો should be quoted with clear vision inspection criteria when burrs, orientation, mixed parts, missing features, surface defects, or tiny geometry affect assembly. The RFQ should define which features are inspected by camera, what defects are rejected, lighting and fixture condition, sample limits, false reject handling, data retention, and whether 100 percent inspection is required.
Vision inspection can catch problems that manual inspection misses, but only when the defect criteria are clear. For terminals, clips, lead frames, EMI parts, and micro brackets, the camera needs a stable presentation of the part and a standard that separates real defects from harmless variation.
Use this page with the inspection equipment guide, critical dimensions inspection plan, AQL sampling guide, and Gage R&R guide.
Vision inspection criteria before quoting
| Criterion | Why it matters | RFQ evidence |
|---|---|---|
| Feature list | The camera should inspect the defects that affect function, not every harmless mark. | CTQ features, defect examples, and reject photos. |
| Presentation | Small parts must face the camera consistently. | Tray, reel, nest, fixture, orientation, and lighting condition. |
| Tolerance limit | Image checks need pixel, contrast, and measurement rules. | Limit samples, measurement method, and calibration rule. |
| False reject handling | Over-tight criteria can stop production without improving quality. | Review rule, recheck method, data retention, and escalation path. |
Decide what the camera must prove
Vision inspection should be tied to function. It can check missing holes, missing forms, wrong orientation, mixed parts, bent tabs, long burrs, plating stains, scratches, or incomplete cutoffs. It may not be the best tool for hidden cracks, spring force, hardness, or contact resistance. The RFQ should separate camera checks from dimensional or functional tests.
For small parts, presentation matters as much as the camera. A part on carrier strip, in a tray, loose in a bowl, or sitting in a nest will expose different surfaces. If the buyer expects 100 percent vision inspection, the સપ્લાયર needs to know the handling route before quoting cycle time and inspection cost.
Use limit samples and defect examples
Terms like acceptable scratch, small burr, slight stain, or normal mark are not enough for automated inspection. Provide photos, limit samples, or a written defect library. Define which features are critical to function and which are cosmetic. This keeps the system from rejecting good parts or passing defects that matter.
If surface finish is involved, lighting and angle can change the result. A bright plated surface may show harmless reflections as defects. A dark oil film may hide burrs. When cleanliness or surface condition matters, connect the plan to the cleanliness control guide and the surface finish cosmetic inspection guide.
RFQ details to include
- Drawing with CTQ features, functional zones, cosmetic surfaces, burr limits, orientation marks, and mixed-part risk.
- Defect list: missing feature, short form, bent tab, wrong orientation, plating stain, scratch, burr, debris, or deformation.
- Inspection mode: 100 percent camera check, sampling, optical comparator, microscope, fixture check, or manual visual standard.
- Part presentation: reel, carrier strip, tray, nest, bowl-fed, loose, stacked, or after packing.
- Limit samples, reject photos, lighting condition, measurement tolerance, false reject review, data retention, and report format.
- Annual volume, cycle time target, pilot quantity, current quality issue, and customer-specific inspection requirement.
How to compare સપ્લાયર answers
A strong answer asks which defects affect assembly and how parts will be presented to the camera. It should discuss lighting, fixture, limit samples, false rejects, and whether inspection data can be saved. A weak answer only says vision inspection is available.
Ask whether the proposed inspection is for launch sorting, routine production, or containment after a quality issue. The setup can be different. A temporary containment camera may not be the right long-term production control if the stamping process itself is unstable.
Send drawings, defect examples, photos, limit samples, presentation method, and reporting needs through the contact page. Use the RFQ form to request a vision inspection plan when tiny defects can stop assembly.
FAQ
When should small સ્ટેમ્પ કરેલા ભાગો use vision inspection?
Use it when tiny features, orientation, mixed parts, burrs, surface defects, or deformation are hard to control with manual inspection alone.
Can vision inspection replace dimensional inspection?
Sometimes for selected features, but force, hardness, hidden cracks, and many functional dimensions still need appropriate gauges or tests.
Why are limit samples important for vision inspection?
They show what is acceptable and rejected, reducing false rejects and helping the camera criteria match the buyer’s real quality requirement.
What should be sent for a vision inspection RFQ?
Send drawings, CTQ features, defect photos, limit samples, part presentation, inspection rate, reporting needs, volume, and current reject history.