Method and apparatus for examining position of board-support pin, and method and apparatus for positioning board-support pin
AssigneeFuji Machine Mfg. Co., Ltd.
InventorTomohiko Hattori
Life of this patent
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Abstract
A method of examining a position of at least one board-support pin which is positioned on a board-support base for supporting a printed-circuit board under a back surface thereof, the method including the steps of taking an image of the board-support pin, at a position opposed to a free end of the pin, judging whether the position of the board-support pin is appropriate, based on the taken image, and producing judgment information indicative of a result of the judgment.
Claims12
A method of examining a position of at least one board-support pin which is continuously movable, and positionable at an arbitrary position, on a board-support base for supporting a printed-circuit board under a back surface thereof, the method comprising the steps of:
- moving at least one of an image taking device and the board-support base relative to the other of the image taking device and the board-support base, in a direction parallel to the board-support base, so that the image taking device is positioned at a position opposed to a free end of the board-support pin positioned on the board-support base;
- taking an image of the board-support pin, with the image taking device positioned at the position opposed to the free end of the board support pin;
- judging, based on the taken image, whether at least one positional error of at least one actual position of the board-support pin from at least one reference position in at least one reference direction parallel to the board-support base falls within a reference range, and when it is judged that the positional error falls within the reference range, judging that the actual position of the board-support pin is appropriate, and when it is judged that the positional error does not fall within the reference range, judging that the actual position of the board-support pin is not appropriate;
- and
- producing judgment information indicative of a result of the judgment.
A method of examining a position of at least one board-support pin which is positioned on a board-support base for supporting a printed-circuit board under a back surface thereof, the method comprising the steps of:
- taking an image of the board-support pin at a position opposed to a free end of the pin;
- judging whether the position of the board-support pin is appropriate, based on the taken image,
- producing judgment information indicative of a result of the judgment;
- and
- supplying the judgment information to a pin-position correcting device so that the pin-position correcting device automatically corrects the position of the board-support pin, based on the judgment information.
A method of examining a position of at least one board-support pin which is positioned on a board-support base for supporting a printed-circuit board under a back surface thereof, the method comprising the steps of:
- taking an image of the board-support pin, at a position opposed to a free end of the pin, with an image taking device which is for taking an image of each of a plurality of reference board marks provided on the printed-circuit board so as to detect a position of the printed-circuit board;
- judging whether the position of the board-support pin is appropriate, based on the taken image;
- and
- producing judgment information indicative of a result of the judgment.
A method of examining a position of at least one board-support pin which is positioned on a board-support base for supporting a printed-circuit board under a back surface thereof, a reference pin mark being provided on a free-end surface of the board-support pin, the free-end surface providing a board-support surface for supporting the printed-circuit board, the method comprising the steps of;
- taking an image of the reference pin mark of the board-support pin, at a position opposed to the free-end surface of the board-support pin;
- judging whether the position of the board-support pin is appropriate, based on the taken image;
- and
- producing judgment information indicative of a result of the judgment.
An apparatus for examining a position of at least one board-support pin which is positioned on a board-support base for supporting a printed-circuit board under a back surface thereof, the apparatus comprising:
- an image taking device which takes an image of the board-support pin, at a position opposed to a free end of the pin;
- a moving device which moves at least one of the image taking device and the board-support base relative to the other of the image taking device and the board-support base in a direction parallel to the board-support base;
- a first controller which controls the moving device such that the image taking device is positioned at the position opposed to the free end of the board-support pin;
- and
- a judging device which judges whether the position of the board-support pin is appropriate, based on the image taken by the image taking device, and which produces judgment information indicative of a result of the judgment.
Dependencies are inferred from the claim text.