Patent ID: 7679379
Filing Date: 2010-03-16
Classification: G01B

Abstract:
1. A detecting apparatus for checking shape, size and/or position of a hole of an electrically conductive workpiece, comprising: a platform configured to support the workpiece thereon; a dielectric detecting board movably set above the platform; an electrically conductive detecting unit supported on the detecting board in alignment with the hole placement of the workpiece; an electrical source configured for forming a circuit with the detecting unit and the workpiece; a processor electrically connecting with the circuit; and an indicator electrically connecting with the processor; wherein when the detecting board is moved to the workpiece, if the detecting unit enters the hole without touching with a wall of the workpiece bounding the hole, the circuit remains open, the processor receives a circuit open signal and controls the indicator to indicate that the hole is eligible; or if the detecting unit contacts the wall bounding the hole, the circuit closes, the processor receives a circuit closed signal and controls the indicator to indicate that the hole is ineligible; wherein the detecting unit comprises a detecting portion configured for inserting into the hole of the workpiece, a slot is defined in the detecting portion extending from a free end to a middle portion thereof.