Production process administration system
AssigneeMazda Motor Corporation
InventorsShunji Sakamoto, Toshihiko Hoshino
Life of this patent
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Abstract
In a production process administration system, there are provided an assembly line comprising a plurality of assembly stations and a correction line comprising a plurality of correction stations for correcting defects which occur on the assembly line, the above two lines being connected in series to form a single production line. Defects detected in the assembly line are stored in a data carrier which is transported along with a work which is assembled. Defect data in the data carrier is read before the work enters the correction line, and correction operation instructions based on the read data are output to each station of the correction line.
Claims18
A production process administration system for controlling production processes which are performed on a production line having an assembling station line and a correction station line which is connected to the assembling station line, comprising:
- the assembling station line along which a plurality of assembling stations are provided at which production operations are performed;
- the correction station line along which at least one correction station is provided at which a correction operation is performed, said correction station line being connected to the assembling station line so that the correction station line and assembling station line form a single line;
- a work that moves along said correction station line and successively said assembling station line;
- a data carrier that moves with the work and that is capable of recording data;
- said plurality of assembling stations each having means for detecting defects of said production operations and for writing a nature of the defects in said data carrier;
- means for advancing the work together with the data carrier along the assembling station line and toward the correction station line;
- correction instruction distribution means, provided at a data collection point between the last assembling station and the first correction station, for reading the contents of said data carrier when the data carrier arrives at the point, for preparing a correction instructions according to a defect which is read out of the data carrier, and for sending instructions to the at least one correction station;
- and
- said at least one correction station at which correction operations are performed based on the correction instructions sent from the instruction means.
An administration method for administrating production processes which are performed on a production line having an assembling station line and a correction station line which is connected to the assembling station line so that the correction station line and assembling station line form a single line, the assembling station line being provided with a plurality of assembling stations at which production operations are performed, and the correction station line being provided with at least one correction station, the method comprising the steps of:
- moving a work and data carrier that move along said assembling stations while forming data indicating defects occurred when production operations are performed at said assembling stations and recording the defect data onto the data carrier;
- reading the defect data from said data carrier at a data collection point between the last assembling station and the first correction station;
- preparing correction instructions according to a defect which is read out of the data carrier, and sending the instructions to the at least one correction station;
- and
- performing correction operations at said one correction station on the basis of the correction instructions received thereat.
Dependencies are inferred from the claim text.