公开(公告)号：US09291208B2

公开(公告)日：2016-03-22

申请号：US14275931

申请日：2014-05-13

Applicant: MITUTOYO CORPORATION

Inventor： Hisayoshi Sakai

IPC: F16D3/04 ,  F16D3/82 ,  F16D3/02 ,  F16D3/80 ,  F16C32/06

CPC classification number: F16D3/82 ,  F16C32/0603 ,  F16D3/02 ,  F16D3/80

Abstract: A rotation transmitter includes: a first member, an intermediate member and a second member that are arranged coaxially with a rotation axis. The first member is formed with a first bearing surface along the rotation axis and a first direction. The second member is formed with a second bearing surface along the rotation axis and a second direction. The intermediate member is formed with a first middle bearing surface facing the first bearing surface and formed with a second middle bearing surface facing the second bearing surface. A static-pressure air bearing is formed between the bearing surface and the middle bearing surface. The rotation transmitter further includes: a preload device that biases the bearing surface and the middle bearing surface in a direction approaching each other.

Abstract translation: 旋转变送器包括：与旋转轴同轴布置的第一构件，中间构件和第二构件。 第一构件沿着旋转轴线和第一方向形成有第一支承面。 第二构件沿旋转轴线和第二方向形成有第二支承面。 中间构件形成有面向第一支承面的第一中间承载面，并形成有面向第二支承面的第二中间承载面。 在轴承表面和中间承载面之间形成静压空气轴承。 旋转变送器还包括：预紧装置，其使轴承表面和中间承载面朝向彼此接近的方向偏压。

公开(公告)号：US11193762B2

公开(公告)日：2021-12-07

申请号：US16380335

申请日：2019-04-10

Applicant: MITUTOYO CORPORATION

Inventor： Hisayoshi Sakai ,  Junsuke Yasuno ,  Ryosuke Watanabe

IPC: G01B21/30 ,  G01B21/20 ,  B23Q1/64 ,  G12B5/00

Abstract: A rotary disk rotatable around a vertical rotation axis; a bearing supporting the rotary disk so as to be freely rotatable; a slide disk slidable on a top surface of the rotary disk; a position adjustment bracket that displaces the slide disk along the top surface of the rotary disk; a placement disk that is supported by the slide disk; a plurality of air nozzles that are arranged on a top surface of the stator in an annular shape centered on the rotation axis, and form a static pressure air film between the top surface of the stator and a bottom surface of the rotary disk; an aerostatic pocket formed between the top surface of the rotary disk and a bottom surface of the slide disk; and a communication aperture is formed on the rotary disk and introduces pressure of the static pressure air film into the aerostatic pocket.

公开(公告)号：US11103968B2

公开(公告)日：2021-08-31

申请号：US16667353

申请日：2019-10-29

Applicant: Mitutoyo Corporation

Inventor： Tomoyuki Tamagawa ,  Hisayoshi Sakai

IPC: B23Q1/26 ,  F16C32/06

Abstract: A rotary table apparatus includes: a table part having a placement surface; a support part having a guide surface facing an opposing surface which is on an opposite side of the placement surface of the table part; an air film forming part that forms an air film by supplying compressed air between the guide surface and the opposing surface; a negative pressure generating part that sucks air between the guide surface and the opposing surface; a discharge part formed with a discharge port; and an opening adjusting part that adjust the size of an opening area of the discharge port in accordance with the size of a compressed air pressure corresponding to a load applied to the table part.

公开(公告)号：US09664629B2

公开(公告)日：2017-05-30

申请号：US14514882

申请日：2014-10-15

Applicant: MITUTOYO CORPORATION

Inventor： Hisayoshi Sakai

IPC: G01N25/16 ,  G01B21/04 ,  G01B5/00 ,  G01B5/008

CPC classification number: G01N25/16 ,  G01B5/0014 ,  G01B5/008 ,  G01B21/045

Abstract: An industrial machine includes a moving mechanism moving one of a probe and a tool relative to a work piece, using three displacement axes parallel to each of three orthogonal axis directions; a low thermal expansion member formed with a material having a smaller thermal expansion coefficient than a material forming a structural element of the moving mechanism; and an expansion/contraction measurer measuring, using the low thermal expansion member as a reference, an amount of expansion/contraction of the structural element in one of the three orthogonal axis directions, the expansion/contraction occurring due to a change in temperature.

公开(公告)号：US20150063730A1

公开(公告)日：2015-03-05

申请号：US14471631

申请日：2014-08-28

Applicant: MITUTOYO CORPORATION

Inventor： Hisayoshi Sakai

IPC: G01B3/20 ,  F16C29/02 ,  F16C29/00

CPC classification number: G01B3/20 ,  F16C29/002 ,  F16C29/005 ,  F16C29/02 ,  F16C29/025 ,  F16C29/123 ,  F16C32/0614 ,  F16C32/0666 ,  F16C2370/00

Abstract: A slide guide device includes: a guide body having a reference guide surface and a sub guide surface that are parallel to each other; a slider having a reference slide pad adapted to slide on the reference guide surface and a sub slide pad adapted to slide on the sub guide surface, the slider being adapted to be driven by a drive unit to move along the guide body. The sub slide pad includes a slide surface (sub slide surface) slidable on the sub guide surface and an air pocket that receives a load in a manner non-contact with the sub guide surface.

Abstract translation: 滑动引导装置包括：引导体，其具有彼此平行的基准引导表面和子引导表面; 具有适于在所述基准引导表面上滑动的参考滑动垫的滑块和适于在所述辅助导向表面上滑动的副滑动垫，所述滑块适于由驱动单元驱动以沿着所述引导体移动。 副滑块包括可在副导向面上滑动的滑动面（副滑动面）和以与副导向面不接触的方式接受负载的气穴。