Hitachi High-tech Instruments Company, Ltd.

Takuya Imoto

Kazuyoshi Oyama

Akira Aoki

Hideaki Fukushima

Akio Watanabe

Yoshiharu Fukushima

Shigeru Kuribara

Hiroaki Ito

Shuji Nushiyama

The invention prevents reduction of a pickup rate even when a storage tape in use and a new storage tape are connected to each other with a connection tape. A component recognition camera takes an image of an electronic component held by a suction nozzle, and a recognition processing device performs recognition processing. When a positional shifting amount calculated by CPU based on the recognition processing result is more than &#x3b1;, a board recognition camera takes an image of a storage portion of a storage tape storing a next electronic component to be picked up. When a positional shifting amount of the storage portion calculated based on the recognition processing result is more than &#x3b2;, the CPU enables seam passage processing. Based on the image taking of the storage portion by the board recognition camera and the recognition processing by the recognition processing device which are performed each time the storage tape is fed N times, the CPU controls correction of a pickup position.

Electronic component mounting apparatus

This invention provides a board positioning method where a stopper and so on are not required when positioning a printed board in an X direction. Servo motors of a board supplying conveyer portion and a board positioning portion are driven to start carrying of a board. When a first board detection sensor detects the board before timeout of a first timer which starts timekeeping together with the carrying of the board, second and third timers start timekeeping. The servo motor starts decelerating, decelerates to an arbitrary speed, and keeps a constant speed after timeout of the second timer. When a second board detection sensor detects the board before timeout of the third timer, the servo motor is controlled to decelerate and stop the board at an arbitrary position, and a board recognition camera takes an image of a positioning mark of the board stopping at the board positioning portion to recognize a position of the printed board. The CPU controls the servo motors based on a result of the recognition in manufacturing running.

Board positioning device and board positioning method

An electronic component mounting apparatus is configured to adjust a positional relationship between two axes when an error occurs in the positional relationship between the axes when a beam is moved by two drive sources. According to movement of the beam for component picking and mounting operations, linear scale signals from linear scale reading heads are inputted to a Ydriver and a Ydriver, respectively. Each of the Ydriver and the Ydriver calculates a difference between positions of the drive axes of the beam and controls a moving member of a linear motor based on the difference so as to increase thrust of one drive axis when the one drive axis is in a more backward position than another drive axis and to reduce the thrust of one drive axis when the one drive axis in a more forward position than another drive axis.

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Gunma, Japan

Takuya Imoto