Patent ID: 11917765
Assignee: FUJI CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A component mounter comprising:
a board conveyance device configured to convey a board;
a feeder configured to store a component to be mounted on the board;
a component transfer device including a suction nozzle configured to pick up one component from the feeder and mount the one component on the board; and
a control device configured to control the board conveyance device, the feeder, and the component transfer device to mount the component on the board,
wherein the control device is further configured to estimate a cause of a mounting error and includes:
an error history storage section configured to process and store an error occurrence status of a mounting error that mounting work of mounting a component on a board has failed in a component mounter by attributing the error occurrence status to either individuals of one or more types of devices used for the mounting work or individuals of one or more types of data used for the mounting work, or both;
a factor setting section configured to select two types of factors from at least one of the devices and the data and to respectively set the selected factors as a first factor and a second factor;
a first determination section configured to, for each individual of a determination target, perform a process of specifying the individual as the first factor, obtaining the error occurrence status for each individual as the second factor under a condition that the individual as the first factor is specified, and determining whether the obtained error occurrence status is biased according to a difference in the second factor;
a second determination section configured to, for each individual of the determination target, perform a process of specifying the individual as the second factor, obtaining the error occurrence status for each individual as the first factor under a condition that the individual as the second factor is specified, and determining whether the obtained error occurrence status is biased according to a difference in the first factor; and
a cause estimation section configured to identify a causative individual causing the mounting error based on a first determination result in the first determination section and a second determination result in the second determination section, and

wherein the control device is further configured to control the component mounter to mount another component after correcting the causative individual.