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Method and system for inspecting an assembly, and electrical inspection apparatus for a flash unit

  • US 5,659,491 A
  • Filed: 12/14/1994
  • Issued: 08/19/1997
  • Est. Priority Date: 12/14/1993
  • Status: Expired due to Fees
First Claim
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1. A method for inspecting an assembly constituted of a plurality of parts, comprising the steps of:

  • holding said assembly by a pallet in a predetermined state;

    circulating a plurality of said pallets around a plurality of inspection stations for sequentially inspecting said assemblies with respect to a plurality of inspection items;

    providing each of said pallets with a data management device having a data memory and a data communication system for allowing to read and write said data memory through remote processing;

    writing measurement data obtained in each inspection station in said data memory of said data management device;

    judging said measurement data with reference to threshold values which are predetermined for each inspection item by calculating group values of said measurement data according to a predetermined grouping formula and comparing said group values with said threshold values of each inspection item;

    classifying said assemblies according to said judgment data on all of said inspection items;

    writing judgment data and classification data obtained in said judging step and said classification step in said data memory of a corresponding one of said pallets; and

    discharging said assemblies from said pallets while being stored in a plurality of groups according to said classification data.

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