Matsushita Electric Industrial Co., Ltd.

Seishiro Yanachi

Akihiko Wachi

Nobuyuki Kakishima

Ken Takahashi

Takao Naito

Naoichi Chikahisa

Nobuyasu Nagafuku

Yousuke Nagasawa

Takahiro Kurokawa

Seiichi Matsuo

Masaya Matsumoto

Yoichi Tanaka

Youichi Tanaka

Tomiyasu Ueda

Hiroshi Sato

There are provided a positioning-controlling apparatus and a positioning-controlling method in which a rotary encoder ( ) detects the Z phase before the subject ( ) is return to the origin which is the position of the Z phase detected by the linear encoder ( ). The driving mode of the servo motor ( ) is switched from rectangular waveform pulse driving to sine waveform pulse driving upon the detection of the Z phase by the rotary encoder ( ). The subject's moving direction for returning to the origin may be previously specified, and in which the detection of the ON state of the origin sensor ( ), the detection of the Z phase by the rotary encoder ( ), and the detection of the Z phase by the linear encoder ( ) are done in this order, while the subject ( ) is being moved in the above specified direction. Alternatively, the rotary encoder ( ) may detect the CS phase instead of the Z phase.

Positioning-controlling apparatus and positioning-controlling method, and part-mounting equipment and part-mounting method

A screen printing method and apparatus for printing a circuit pattern corresponding to that of a stencil ( ), onto a print-object article ( ) placed on an ascendable/descendable positioning stage ( ), through moving a squeegee ( ) horizontally while the squeegee is pushed in on the stencil so that print paste ( ) is printed to the article via the stencil. The squeegee is lifted to an extent of a push-in stroke, to which the squeegee has been pushed in on the stencil, and thereafter the article is separated away from the stencil by moving the stage downward. The board is classified into first and second areas ( ) where values of opening sizes of the stencil along a squeegee moving direction are smaller than and not smaller than a threshold, and a speed of the squeegee at the first area is made slower than that at the second area. Upon an occurrence of print standby time during a printing operation, the print standby time is measured, and at a resumption of printing with the print standby canceled, the paste placed on the stencil during the standby time is screen-printed, by moving the squeegee at an adjusted print speed lower than the reference print speed based on a relationship between the print standby time and a print time due to the adjusted print speed after the resumption of printing.

Screen printing method and screen printing apparatus

A controlling method and apparatus for positioning a robot that can output an optimal speed instruction for controlling residual vibration after completion of a moving operation, achieve reduction in tact time for the moving operation, and shorten the length of setting time. The method is a controlling method for positioning a robot ( ) for performing a point-to-point moving operation comprising: performing a test operation to measure a frequency of a residual vibration that is stopped at a target position; measuring a magnitude of the residual vibration based on the frequency during each of different lengths of moving time for a predetermined moving distance to find a relationship between the length of moving time and the magnitude of the vibration; calculating a shortest moving time at which vibration magnitude is minimized; and performing the point-to-point operation for the calculated shortest moving time, thereby to position the robot ( ) at the target position.

Controlling method and apparatus for positioning a robot

A computer device for production equipment comprises an arithmetic unit , an input device for inputting operation data, a display device for displaying operation data, and an HDD device for storing an arithmetic unit executed processing program, and operation results. In the HDD device there are provided a main drive unit and a backup drive unit, which are constituted so as to maintain the same contents, and to selectively connect the arithmetic unit to one of the drive units inside the HDD device , a drive unit selecting circuit is provided on the HDD device side, and a switch for switching this drive unit selecting circuit is provided on the outside of the computer device

Computer device for production equipment

A screen printing method and apparatus for printing a circuit pattern corresponding to that of a stencil (,), onto a print-object article (,) placed on an ascendable/descendable positioning stage (,), through moving a squeegee (,) horizontally while the squeegee is pushed in on the stencil so that print paste (,) is printed to the article via the stencil. The squeegee is lifted to an extent of a push-in stroke, to which the squeegee has been pushed in on the stencil, and thereafter the article is separated away from the stencil by moving the stage downward. The board is classified into first and second areas (,) where values of opening sizes of the stencil along a squeegee moving direction are smaller than and not smaller than a threshold, and a speed of the squeegee at the first area is made slower than that at the second area. Upon an occurrence of print standby time during a printing operation, the print standby time is measured, and at a resumption of printing with the print standby canceled, the paste placed on the stencil during the standby time is screen-printed, by moving the squeegee at an adjusted print speed lower than the reference print speed based on a relationship between the print standby time and a print time due to the adjusted print speed after the resumption of printing.

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Kofu, Japan

Seishiro Yanachi