Inspection & Testing · Component review guide · Litian Yunde
A fixture checks defined features. Original explanatory schematic; not to scale and not a product test result.
检测夹具只能验证其设计用于评估的特征和条件。在将其用于验收碳纤维零件之前，应先明确定位点、接触规则以及合格/不合格标准。能够被强行装入夹具的零件，并不一定意味着其已通过了有意义的装配检查。.
Document how the part is located
Identify the datum contacts, support positions and any permitted clamping. Record the order in which the part is seated. A flexible component may conform to a fixture under force, masking a condition that matters in service. State whether the check is unrestrained or constrained and define any assembly force that belongs to the approved method.
Separate fixture checks from other requirements
A gauge can check a hole pattern or mating envelope while leaving thickness, surface finish or material construction unmeasured. List the characteristics covered and those requiring separate inspection. Do not label a fixture result “all dimensions passed” unless the inspection plan supports that statement. Include a clear response when a part sits ambiguously between pass and fail.
Maintain the reference itself
Keep fixture identity and revision with each report. Establish the checks needed to ensure that locating features remain suitable for use. If the part drawing changes, review the fixture before continuing acceptance. A master sample also needs identification and a defined role: a worn or modified sample should not silently become the new manufacturing requirement.
Example: a mounting plate with four holes
A plate passes a simple four-pin fixture, but a nearby connector still collides with its edge. The fixture checked the mounting pattern, not the connector envelope. The revised inspection plan preserves the pin check and adds an edge-clearance check. Both results identify the drawing and fixture revisions, so their coverage is explicit.
此为示例场景，并非客户案例或已报告的生产结果。.
下单前需确认的细节
| 评论对象 | 记录以示同意 |
|---|---|
| Fixture definition | Identity, revision, locating features and support. |
| Use instruction | Seating sequence and permitted clamp or force. |
| 报道范围 | Exact features verified and separate inspections needed. |
| Disposition | Pass/fail rule and handling of ambiguous results. |
买家常问的问题
Is a golden sample a substitute for a drawing?
It can support an agreed comparison, but its controlling role and limits must be documented.
Can the operator press a flexible part into the gauge?
Only if that restraint is explicitly part of the approved inspection condition.
技术背景及相关阅读资料
背景资料： NIST：测量过程表征. 上述项目检查清单和示例仅供编辑参考；本参考资料并不对利天云德的组件进行认证。.