Component mounting system

Patent metadata

Field	Value
Publication number	US-11229150-B2
Application number	US-201616305516-A
Country	US
Kind code	B2
Filing date	Jun 13, 2016
Priority date	Jun 13, 2016
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

Component mounting system 1 includes electronic component mounting device 10 , control device 100 , image processing device 110 , and storage device 115 . Electronic component mounting device 10 includes mounting head 26 , supply device 28 , and component camera 90 . Electronic component mounting device 10 holds a supplied electronic component with mounting head 26 , and images the held electronic component with component camera 90 . Controller 102 performs image processing on captured image data with image processing device 110 to determine the acceptability and position of the electronic component (S 6 ). Controller 102 monitors the start and end of the storage period (S 10 , S 13 ) based on the magnitude relationship between the error rate calculated from the determination result information in the error rate calculation process (S 8 ) and the reference error rate (S 9 ). If the image data captured with component camera 90 is stored within the storage period, controller 102 stores the image data in storage device 115 (S 11 ).

First claim

The invention claimed is:

1. A component mounting system, comprising:
a component supply section configured to supply a component to be mounted at a predetermined position of a board;
a pickup nozzle configured to pick up the component supplied by the component supply section;
an imaging section configured to capture an image of the component picked up by the pickup nozzle and acquire image data;
a memory section configured to store image data captured by the imaging section;
an image processing execution section configured to perform image processing on the image data captured by the imaging section;
a determining section configured to determine acceptability of the component and a position of the component based on the image data subjected to the image processing by the image processing execution section;
a population updating section configured to add a most recent determination result to a predetermined number of determination results from determination results obtained by the determining section for a predetermined number of images and to delete an oldest determination result from the predetermined number of determination results;
an error rate calculating section configured to calculate an error rate that is a ratio of determination results indicating an unacceptable result among the predetermined number of determination results;
a storage period monitoring section configured to start a storage period, during which the image data is stored in the memory section, when the error rate calculated by the error rate calculating section is larger than a predetermined reference error rate, and to end the storage period when the error rate calculated by the error rate calculating section is less than or equal to the reference error rate, and
a storage control section configured to store the image data captured by the imaging section in the memory section during the storage period.

2. The component mounting system according to claim 1 , further comprising
a reference setting section capable of setting the reference error rate for each of multiple components mounted on the board.

3. The component mounting system according to claim 1 , wherein
the population updating section updates the predetermined number of determination results used for calculating the error rate to a latest state after the image processing by the image processing execution section has been performed on the image data captured by the imaging section and the determination has been made by the determining section.

4. The component mounting system according to claim 1 , wherein the error rate calculating section initializes the determination results of the determining section regarding the component when component shape data of the component used for the determination with the determining section is updated.

Assignees

• Fuji Corp

Inventors

• Oike Hiroshi
• Sugiyama Kenji
• Kito Shuichiro

Classifications

• H05K13/0813

  Controlling of single components prior to mounting, e.g. orientation, component geometry (H05K13/0812 takes precedence) · CPC title

• G05B19/406

  characterised by monitoring or safety (G05B19/19 takes precedence) · CPC title

• G06T1/0007

  Image acquisition · CPC title

• G06T1/60

  Memory management · CPC title

• H05K13/0882 Primary

  Control systems for mounting machines or assembly lines, e.g. centralized control, remote links, programming of apparatus and processes as such (H05K13/083 takes precedence) · CPC title