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公开(公告)号：US10775166B2
公开(公告)日：2020-09-15
申请号：US15543181
申请日：2016-02-02
发明人： Ryuta Sato , Yuki Sato , Mitsunari Oda , Nobu Nakayama
摘要： A shape evaluation method includes a shape error calculation step that calculates a shape error, which is an error between a designed shape and a shape to be evaluated, and a visible error detection step that detects visible shape errors on the basis of the shape error and predetermined visual characteristic data.
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2.发明授权公开(公告)号：US10788812B2
公开(公告)日：2020-09-29
申请号：US16080530
申请日：2017-02-28
发明人： Ryuta Sato , Takumi Nakanishi , Mitsunari Oda , Nobu Nakayama
IPC分类号： G05B19/4097 , G01N21/27 , G01N21/47 , G06T15/50 , G06F30/00
摘要： In the present invention: a plurality of meshes are defined on an object surface; the luminance of the object surface when the object surface is viewed from a viewpoint position is calculated for each of the plurality of meshes on the basis of data concerning a processed shape, a surface roughness curve, the viewpoint position, the direction, angle distribution, and intensity of incident light onto the object surface, and a reflectance and scattering characteristics for each wavelength on the object surface; the shape of the object surface is displayed on the basis of the luminances; and data concerning at least the object shape or the surface roughness curve is corrected so as to obtain a desired appearance of the object surface.
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3.发明授权公开(公告)号：US10248101B2
公开(公告)日：2019-04-02
申请号：US15517455
申请日：2014-10-29
发明人： Mitsunari Oda , Megumi Furuta , Akihiro Shinone , Toshimune Kawai
IPC分类号： G05B19/19 , G05B19/4093 , G05B19/4103
摘要： A tool path generation method for generating a second tool path by performing a smoothing process on a first tool path for processing a work with a machine tool includes a change rate calculation step of calculating a curvature change rate of the first tool path at a plurality of moving points (Pn) of the first tool path. The tool path generation method includes: a weight calculation step of calculating a moving average weight on the basis of the curvature change rate of the first tool path at each of the moving points (Pn); and a step of calculating coordinate values of the moving average of the moving points (Pn) using the weight at each of the moving points (Pn), and setting the coordinate values of the moving average of the moving points (Pn) as moving points of the second tool path.
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4.发明授权公开(公告)号：US10018989B2
公开(公告)日：2018-07-10
申请号：US14780943
申请日：2013-03-29
发明人： Mitsunari Oda
IPC分类号： G06F19/00 , G05B19/4069 , G05B19/4093 , G01N21/47 , G01B11/30 , G01B17/08
CPC分类号： G05B19/4069 , G01B11/30 , G01B17/08 , G01N21/4738 , G05B19/4093 , G05B2219/32177 , G05B2219/32215 , G05B2219/32216 , G05B2219/35346 , G05B2219/37402 , Y02P90/22 , Y02P90/265
摘要： A worked surface of a workpiece is evaluated on the basis of how the surface is actually perceived by a person's (observer's) eyes (vision) or fingers (touch), and a work process whereby a workpiece is worked is changed on the basis of the evaluation.
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公开(公告)号：US11507051B2
公开(公告)日：2022-11-22
申请号：US16482669
申请日：2018-02-05
发明人： Ryuta Sato , Takumi Nakanishi , Mitsunari Oda , Nobu Nakayama
IPC分类号： G05B19/4093 , G01B11/30
摘要： A parameter indicating a surface property of an object surface is plotted on the horizontal axis, a normal direction change rate of the shape of the object surface is plotted on the vertical axis, the minimum normal direction change rate visible to a person is associated with the parameter indicating the surface property of the object surface to create a visible area map, the relationship between the parameter indicating the surface property of a machining surface of a workpiece, and the maximum value of the normal direction change rate of the shape of the machining surface of the workpiece is displayed on the visible area map, and the object surface is evaluated.
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公开(公告)号：US10437225B2
公开(公告)日：2019-10-08
申请号：US15515533
申请日：2014-09-30
发明人： Mitsunari Oda
IPC分类号： G05B19/404 , G05B19/416 , B23Q15/007 , H02P27/00 , H02P6/16 , H02P23/12 , B23Q15/013
摘要： A numerically controlled machine tool in which a numerical control program acquired from a reading and interpreting unit of a numerical control device is executed by a distribution interpolating unit and servo control units, to drive a feed shaft configured from a coarse movement mechanism and a fine movement mechanism, causing a tool to move relative to a workpiece, and thereby machining the workpiece, wherein the difference between a movement command for the feed shaft, and an output value which varies on the basis of said movement command is obtained, a movement command for the coarse movement mechanism is generated on the basis of said movement command, and a movement command for the fine movement mechanism is generated on the basis of said difference.
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公开(公告)号：US10274939B2
公开(公告)日：2019-04-30
申请号：US15126239
申请日：2014-03-14
发明人： Mitsunari Oda
IPC分类号： G05B19/416
摘要： Provided is a feed shaft control method, wherein a speed feedback loop having a speed controller is disposed within a position feedback loop having a position controller, forming a cascade coupling, and an acceleration feedback signal which is outputted from a compensator on the basis of an output signal of an acceleration detector is subtracted from a torque instruction. Furthermore, the method implements control wherein a speed is acquired on the basis of the output signal of the acceleration detector, and a signal obtained by multiplying the acquired speed by a gain is added to a speed instruction which is outputted from the position controller.
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公开(公告)号：US09785139B2
公开(公告)日：2017-10-10
申请号：US14772678
申请日：2014-02-28
发明人： Mitsunari Oda
IPC分类号： G06F17/50 , G05B19/416 , G05B19/19
CPC分类号： G05B19/4166 , G05B19/19 , G05B2219/32276 , G05B2219/42063
摘要： A working machine feed axis control device: disposes a velocity feedback loop and forms a cascade coupling on the inner side of a location feedback loop; comprises a velocity gain setting apparatus (30) which multiplies the output of the velocity feedback look by a first gain (kv), and a location gain setting apparatus (31) which multiplies the output of the location feedback loop by a second gain (kp); subtracts the output of the velocity gain setting apparatus (30) and the output of the location gain setting apparatus (31) from a torque instruction (τ); and outputs the remaining torque instruction (τ) to a subject to be controlled (27).
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