COMPONENT MOUNTING SYSTEM AND ERROR STOPPAGE DIAGNOSIS METHOD FOR COMPONENT MOUNTING DEVICE

• US 20170311494A1
• Filed: 10/03/2014
• Published: 10/26/2017
• Est. Priority Date: 10/03/2014
• Status: Active Grant

• Current Assignee: Fuji Corporation
• Original Assignee: Fuji Machine Manufacturing Company Limited (Fuji Corporation)
• Inventors: HAYASHI, Shigeki
• Granted Patent: US 10,477,751 B2
• Time in Patent Office: Days
• CPC Class Codes: G05B 19/418 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 Class Codes: G05B 19/41875 characterised by quality surveillance of production
• CPC Class Codes: G05B 2219/32222 Fault, defect detection of origin of fault, defect of product
• CPC Class Codes: G05B 2219/37214 Detect failed machine component, machine performance degradation
• CPC Class Codes: H05K 13/0015 Orientation; Alignment; Positioning
• CPC Class Codes: H05K 13/04 Mounting of components , e.g. of leadless components
• CPC Class Codes: H05K 13/08 Monitoring manufacture of assemblages
• CPC Class Codes: H05K 13/0812 the monitoring devices being integrated in the mounting machine, e.g. for monitoring components, leads, component placement
• CPC Class Codes: H05K 13/083 Quality monitoring using results from monitoring devices, e.g. feedback loops H05K13/084 takes precedence
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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.

Claims

1. A component mounting system comprising:

a component mounting device provided with

a holding device configured to hold a component,

a determination device configured to determine whether holding of the component is correctly performed by the holding device,

a mounting device configured to mount the held component on a target object in a case where the determination device determines that the holding of the component is correctly performed, and

a recovery device configured to perform recovery processing of re-performing the holding of the component by the holding device in a case where the determination device determines that the holding of the component is not correctly performed;

a counting device configured to count the quantity of times the recovery processing is performed;

an error stoppage device configured to error-stop the component mounting device in a case where the quantity of times the recovery processing is performed reaches a defined count number;

a canceling device configured to cancel the error stoppage of the component mounting device, based on an operation of an operator;

a timekeeping device configured to measure an elapsed time from the error stoppage of the component mounting device by the error stopping device to the canceling of the error stoppage by the canceling device; and

a defined-count-number updating device configured to update the defined count number, based on the measured elapsed time.

2. The component mounting system according to claim 1,

wherein the defined-count-number updating device 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 defined-count-number updating device 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 defined-count-number updating device 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 2,

wherein the defined-count-number updating device 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, further comprising:

an initial value setting device configured to set an initial value of the defined count number, based on an operation of an operator.

6. The component mounting system according to claim 1,

wherein the determination device determines a type of a holding defect, in which the holding of the component is not correctly performed,

the counting device 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,

the error stoppage device error-stops the component mounting device 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 defined-count-number updating device updates the defined count number corresponding to the determined type of holding defect, based on the elapsed time measured by the timekeeping device in a case where the component mounting device was error-stopped due to the determined holding defect and then the error stoppage canceled.

7. An error stoppage diagnosis method comprising:

counting the quantity of times recovery processing is performed in a component mounting device provided with a holding device configured to hold a component, a determination device configured to determine whether holding of the component is correctly performed by the holding device, a mounting device configured to mount the held component on a target object in a case where the determination device determines that the holding of the component is correctly performed, and a recovery device for performing recovery processing of re-performing the holding of the component by the holding device in a case where the determination device determines that the holding of the component is not correctly performed;

counting the quantity of times the recovery processing is performed;

error-stopping the component mounting device in a case where the quantity of times the recovery processing is performed reaches a defined count number;

canceling the error stoppage of the component mounting device, based on an operation of an operator;

measuring an elapsed time from the error stoppage of the component mounting device to the canceling of the error stoppage; and

updating the defined count number, based on the measured elapsed time.