Fanuc Corporation

Hirosato Yoshida

Nobuyuki Ootake

Keisuke Imai

Shunichi Odaka

An abnormality detector includes a signal output unit for detecting a sign of an abnormality based on a physical quantity acquired from a manufacturing machine and outputting a signal; and a machine learning device including state observation unit for observing, as a state variable representing a present state of the environment, physical quantity data indicating the physical quantity related to an operation of the manufacturing machine from the manufacturing machine; a label data acquisition unit for acquiring, as label data, operation state data indicating an operation state of the manufacturing machine; a learning unit for learning the operation state of the manufacturing machine with respect to the physical quantity, using the state variable and the label data; and an estimation result output unit for estimating the operation state of the manufacturing machine using a learning result by the learning unit and outputting an estimation result.

Abnormality detector of a manufacturing machine using machine learning

An encoder and a manufacturing method thereof, by which the encoder can be manufactured by a few processes at a low cost. The encoder has a rotating slit rotatable about an axis, a printed circuit board for measuring a rotational displacement of the rotating slit, a flange to which the printed circuit board is fixed after positioning the printed circuit board, a first connector fixed to the flange, and a second connector mounted on the printed circuit board and connected to the first connector. At least one of the first connector and the second connector is a floating connector having a structure configured to absorb a displacement at least in a direction perpendicular to the axis

Encoder and manufacturing method thereof

A cover having a container portion whose one end is opened and whose other end is closed by a bottom surface, includes: an annular groove formed into an annular shape along an outer circumference of an opening of the container portion; a plurality of communicating portions that are formed in a side wall partitioning the annular groove and the container portion so as to connect the annular groove and the container portion in a radial direction; and an annular seal member fitted to the annular groove.

Cover, seal fitting device, and seal fitting method

A motor capable of suppressing droplets of water generated due to condensation from adhering to electrical components inside a rotary encoder is provided. A motor includes: a motor main body having a rotating shaft member; and a rotary encoder, wherein the rotary encoder has a cover member, and an inner surface of the cover member has a first top surface formed having an inclined portion that is inclined relative to a horizontal direction so as to guide a droplet of water when the rotating shaft member is disposed to extend in a vertical direction, and/or a second top surface formed having an inclined portion that is inclined relative to a horizontal direction so as to guide a droplet of water when the rotating shaft member is disposed to extend in a horizontal direction.

Motor having a cover member for guiding water droplets away from rotary encoder

A rotary encoder includes: an axis holding unit that holds a rotary axis member; a rotary slit plate that rotates around a rotary axis of the rotary axis member; a fixed slit plate that is arranged so as to face the rotary slit plate; a light emitting unit; a light receiving unit that receives the light emitted from the light emitting unit; and a fixed slit table that has a first positioning unit that is attached with the fixed slit plate and positions the fixed slit plate, and a light emitting unit holding unit that holds the light emitting unit. The first positioning unit has an abutting unit and a deformation unit. The fixed slit plate is arranged in between the abutting unit and the deformation unit while the fixed slit plate abuts to the abutting unit, by the deformation unit that has deformed.

Rotary encoder

An encoder () having a body to be measured () and a measuring body () includes an analog-digital converter () converting, to a digital signal, a sinusoidal analog signal generated by a detection unit () and has different phases, a storage unit () storing correction data for aperiodic error components among periodic and aperiodic error components included in errors of position data, an aperiodic error correction unit () correcting the aperiodic error components among errors in the position data by using the correction data, and a periodic error correction unit () correcting the periodic error components among the errors in the position data.

Encoder with accuracy correction function

A motor is provided that is capable of eliminating the need to prepare (develop, manufacture, or possess) motor bodies and rotary encoders of multiple different specifications by facilitating connections to motor bodies or rotary encoders having different contact positions. In a motorincluding a motor body and a rotary encoder, the motor body includes a motor body side connector with a motor body side contact and the rotary encoder includes a rotary encoder side connector with a rotary encoder side contact. The motor body side contactand the rotary encoder side contact are electrically connected. One or both of the motor body side contact and the rotary encoder side contact have a shape extending in a radial direction.

Motor

A rotary encoder of the present invention has a hermetically sealed structure having at least one desiccant and an electric circuit by which the moisture absorbing amount of the desiccant can be obtained. The desiccant is arranged in a sealed space defined by a flange and a cover member. The electric circuit, a rotary slit plate, a light emitting element and a light receiving element are arranged in the sealed space.

Rotary encoder having function to obtain moisture absorbing amount of desiccant

An optical encoder of the present invention includes a light-receiving element unit, moving slitand fixed slit. The light-receiving element unitincludes a patternB for detecting infiltration of liquid.

Encoder that detects infiltration of liquid by light

The apparatuscomprises a flangewhich is fastened to a housing, a cable clampwhich has a first through hole through which the cableis passed and which is arranged between the housingand the flange, and an elastic memberwhich has a second through hole through which the cableis passed and which is arranged between the housingand the cable clamp. The flangehas a cable holewhich opens at an outer peripheral edge of the flangeand holds the cable. The elastic memberis sandwiched between the cable clampand the housingwhen the flangeis fastened to the housing, elastically deforms, holds the cableat the inside of the second through hole, and seals the cable lead-out hole

Apparatus for leading out cable from housing of electronic apparatus and such electronic device

A magnetic detector includes a rotor including a signal generation unit in a surface perpendicular to a rotary shaft and configured to rotate around the rotary shaft, and a detection unit configured to detect a rotational angle of the rotor by using magnetism via the signal generation unit. A plurality of concave and convex portions of the signal generation unit is formed by electroforming or sintering. In the surface, a projection portion is preferably disposed radially inside or outside the rotor with respect to the signal generation unit.

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Yamanashi, Japan

Hirosato Yoshida