Omron Corporation

Koji Nishigaki

Takanori Shibutani

Tatsuya Sasaki

Masayuki Sugioka

Takenori Kusaka

Takaya Shimizu

A pipeline computing apparatus () comprises: a computing unit () configured as a pipeline; a node monitoring unit () that obtains a node processing time; a queue monitoring unit () that obtains an accumulated message amount; a priority variable calculating unit () that, on the basis of the node processing time and the accumulated message amount in a reception queue in a stage previous to the node, calculates a priority variable of the node; and a time allocating unit () that allocates operating time to each of nodes in accordance with the priority variable.

Pipeline computing apparatus, programmable logic controller, and pipeline processing execution method

The present invention provides technology with which it is possible to highly accurately assess the quality of fastening of a screw. The present invention comprises a position acquisition unit () that acquires the axial-direction position of a driver (), and a fault assessment unit () that assesses that a fault has occurred in fastening of a screw when the amount of change in the axial-direction position of the driver () from when temporary seating occurred is greater than a threshold value. The present invention provides a technology with which the quality of screw fastening can be assessed with high precision.

Screw fastening fault assessment device, screw fastening device, screw fastening fault assessment method, and control program

Provided is a technique capable of suitably determining screw fastening failure. A screw fastening failure determination device () includes: a speed acquisition unit () which acquires an axial speed of a screw driver or a speed feature value relating to the speed; and a failure determination unit () which determines, in a temporary seating process, that a screw fastening has failed on the basis of the axial speed or the speed feature value at a prescribed timing.

Screw fastening failure determination device, screw fastening device, screw fastening failure determination method, and non-transitory computer readable medium

Provided is a method for setting bottom-touching-determination standard capable of setting a bottom-touching-determination standard based on parameters with high reliability. The method for setting bottom-touching-determination standard includes a screwing step of screwing a measurement screw () into a measurement screw hole (), a parameter acquisition step of acquiring parameters in the screwing step, a bottom-touching-determination step of determining the presence or absence of bottom-touching on the basis of an axial force of the measurement screw, and a determination standard setting step of collating the determination result in the bottom-touching-determination step and the parameters to set the bottom-touching-determination standard.

Method for setting bottom-touching-determination standard and non-transitory computer readable storage medium

A screw length determination system capable of quickly determining the length of a screw is obtained. A PLC () is equipped with a determination part for measuring the moving speed of a driver for tightening screws in the axial direction of the driver from an initial position until a screw contacts and is screwed into a workpiece, and determining the length of the screw on the basis of the time from the start of movement from the initial position until the moving speed changes.

Screw length determination system, screw-tightening system and storage medium

Provided is a screw length determination system capable of determining the length of a screw with a high degree of accuracy. A PLC () determines the length of a screw on the basis of the amount of rotation or the position in the axial direction of a driver during a period lasting from the time when the screw completes its descent until any time from among the time when provisional seating occurs, the time when the primary tightening period ends and the time when the period of holding for primary tightening ends.

Growing community of inventors

Kusatsu, Japan

Koji Nishigaki