Jtekt Corporation

Makoto Tano

Takaya Nagahama

Koichi Shiiba

Kohei Kato

Takashi Mizoguchi

Yoshio Wakazono

Masashi Yoritsune

Keisuke Usuda

Sho Hasegawa

Hiroyuki Hoshino

Masato Ito

A composite processing machine includes: a holding portion capable of holding a workpiece; a removal processing portion that performs removal processing on the workpiece held by the holding portion, the removal processing portion being capable of performing removal processing of a hard material; an additive manufacturing portion that applies the hard material to a surface of the workpiece held by the holding portion by melting the hard material while supplying the hard material to the surface; and a control unit that controls the composite processing machine. The control unit is configured to: control the additive manufacturing portion to form an additive portion made of the hard material on the surface of the workpiece held by the holding portion; and control the removal processing portion to perform the removal processing on the additive portion formed on the workpiece held by the holding portion.

Composite processing machine

There is provided an additive manufacturing device including a control device of controlling a relative posture of a heat retaining light beam irradiation device to a melting light beam irradiation device, in a state where a heat retaining light irradiation range of a heat retaining light beam larger than a melting light irradiation range of a melting light beam is overlapped with the melting light irradiation range, and such that a size of the heat retaining light irradiation range is changeable with respect to a size of the melting light irradiation range.

Additive manufacturing device

A quality estimation device for an additive product includes an imaging device configured to illuminate a region including a molding surface during manufacturing of the additive product and image the region, when manufacturing the additive product at a molding position by irradiating with a light beam and a material powder melting and solidifying, a luminance acquisition unit acquires a luminance obtained by quantifying a brightness of a light reflected by at least the molding surface of the region in an image in which the imaging device images the region, and a molding density estimation unit estimates a molding density indicating a density of the material powder in a solidified state after melting based on the luminance of the molding surface acquired by the luminance acquisition unit. The material powder is supplied to the molding position.

Quality estimation device for additive product

There are provided a grinding machine and a grinding method that make it possible to achieve a high degree of accuracy of the roundness of a workpiece. As at least one of a coolant dynamic pressure and a grinding efficiency varies depending on a phase of the workpiece, a pressing force in the cut-in direction, which an eccentric cylindrical portion of the workpiece receives from a grinding wheel, varies and a degree of deflection of the eccentric cylindrical portion also varies. In the grinding machine, the degree of deflection during grinding is acquired based on the coolant dynamic pressure and the grinding efficiency, a first correction value for a command position of the grinding wheel relative to the eccentric cylindrical portion is computed, and the command position is corrected based on the first correction value.

Grinding machine and grinding method

A core grinding wheel that has a grinding layer on an outer periphery of a core is used. An ultrasonic wave is output from an ultrasonic sensor to the grinding layer via grinding fluid. An ultrasonic measuring device control unit calculates a thickness of the grinding layer on the basis of a sonic velocity in the grinding layer and an arrival time difference between a reflected wave from a surface of the grinding layer and a reflected wave from a surface of the outer periphery of the core. A grinding process and a truing process are controlled on the basis of an outside diameter of the grinding wheel, which is calculated on the basis of the measured thickness of the grinding layer and an outside diameter of the core.

Growing community of inventors

Obu, Japan

Makoto Tano