Component mounting system and error stoppage diagnosis method for component mounting device

Patent metadata

Field	Value
Publication number	US-10477751-B2
Application number	US-201415513206-A
Country	US
Kind code	B2
Filing date	Oct 3, 2014
Priority date	Oct 3, 2014
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

In a component mounting system, recovery processing is repeated until a recovery count number Nr is larger than or equal to a defined count number Nth in a case where a pickup defect of a component occurs, an elapsed time is measured from error stoppage of a component mounting machine to canceling of the error stoppage in which the component mounting machine is error-stopped when the recovery count number Nr is larger than or equal to the defined count number Nth, the defined count number Nth is increased within a range in which the defined count number does not exceed the upper limit value Nmax in a case where the elapsed time is shorter than a defined time Tth, and the defined count number Nth returns to an initial value in a case where the elapsed time is longer than or equal to the defined time Tth.

First claim

The invention claimed is:

1. A component mounting system comprising:
a nozzle configured to hold a component, and
a controller configured to
determine whether holding of the component is correctly performed by the nozzle,
control the nozzle to mount the held component on a target object in a case where the controller determines that the holding of the component is correctly performed, and
perform recovery processing of re-performing the holding of the component by the nozzle in a case where the controller determines that the holding of the component is not correctly performed;
count the quantity of times the recovery processing is performed;
error-stop the component mounting system in a case where the quantity of times the recovery processing is performed reaches a defined count number;
cancel the error stoppage of the component mounting device, based on an operation of an operator;
measure an elapsed time from the error stoppage of the component mounting system to the canceling of the error stoppage; and
update the defined count number, based on the measured elapsed time.

2. The component mounting system according to claim 1 ,
wherein the controller increases the defined count number in a case where the error stoppage is canceled before the elapsed time has reached a predetermined time, and the controller decreases the defined count number in a case where the error stoppage is canceled when the elapsed time has reached the predetermined time or later.

3. The component mounting system according to claim 2 ,
wherein the controller increases the defined count number by a predetermined count number whenever the error stoppage is canceled before the elapsed time has reached the predetermined time.

4. The component mounting system according to claim claim 2 ,
wherein the controller causes the defined count number to return to an initial value in the case where the error stoppage is canceled when the elapsed time has reached the predetermined time or later.

5. The component mounting system according to claim 1 ,
wherein the controller is configured to set an initial value of the defined count number, based on the operation of the operator.

6. The component mounting system according to claim 1 ,
wherein the controller determines a type of a holding defect, in which the holding of the component is not correctly performed,
the controller counts the quantity of times the recovery processing is performed for each of the types of holding defect,
multiple defined count numbers associated with each of the types of holding defect are set as the defined count number by the controller,
the controller error-stops the component mounting system in a case where the quantity of times the recovery processing is performed reaches a defined count number corresponding to the determined type of holding defect, and
the controller updates the defined count number corresponding to the determined type of holding defect, based on the elapsed time measured by the controller in a case where the component mounting system was error-stopped due to the determined holding defect and then the error stoppage canceled.

Assignees

• Fuji Machine Mfg
• Fuji Corp

Inventors

• Hayashi Shigeki

Classifications

• H05K13/083

  Quality monitoring using results from monitoring devices, e.g. feedback loops (H05K13/084 takes precedence) · CPC title

• H05K13/04

  Mounting of components {, e.g. of leadless components} · CPC title

• G05B2219/37214

  Detect failed machine component, machine performance degradation · CPC title

• G05B2219/32222

  Fault, defect detection of origin of fault, defect of product · CPC title

• G05B19/418

  Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] · CPC title