公开(公告)号：US20190184463A1

公开(公告)日：2019-06-20

申请号：US16285782

申请日：2019-02-26

Applicant: RENISHAW PLC

Inventor： David Roberts MCMURTRY ,  Marc DIMTER ,  Ralph MAYER

IPC: B22F3/105 ,  B29C64/153 ,  B29C64/20

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B22F2003/1059 ,  B22F2201/00 ,  B22F2203/00 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2003/1056

Abstract: This invention concerns an additive manufacturing apparatus for building objects by layerwise consolidation of material. The apparatus includes a build chamber containing a working area, a high energy beam for consolidating material deposited in the working area in layers and a flow device for generating a gas flow across at least a part of the working area from a gas inlet to a gas outlet. The gas inlet and gas outlet are arranged to be movable within the build chamber.

公开(公告)号：US20190178618A1

公开(公告)日：2019-06-13

申请号：US16327077

申请日：2017-09-07

Applicant: RENISHAW PLC

Inventor： David Roberts MCMURTRY ,  John Charles OULD

IPC: G01B5/012 ,  G05B19/406

Abstract: A method is described for measuring an object using a machine tool and a scanning probe. The scanning probe is driven along a scan path relative to the object whilst the scanning probe acquires probe data describing a series of positions on the surface of the object relative to the scanning probe. The scan path includes at least a first scan path segment for producing probe data that can be analysed to measure the object. The scan path is also arranged to impart a plurality of identifiable probe motions to the scanning probe that can be identified from the acquired probe data alone. Each identifiable probe motion is used to define a time stamp. This allows the probe data to be tied to commanded or nominal positions around the scan path.

公开(公告)号：US20190145748A1

公开(公告)日：2019-05-16

申请号：US16092430

申请日：2017-03-31

Applicant: RENISHAW PLC

Inventor： Stephen Mark ANGOOD

IPC: G01B5/00 ,  B25J19/00 ,  B25J9/00 ,  B25J9/12

CPC classification number: G01B5/0004 ,  B25J9/0012 ,  B25J9/0066 ,  B25J9/123 ,  B25J19/0016 ,  G01B5/0002 ,  G01B5/0014 ,  G01B5/0016

Abstract: A non-Cartesian coordinate positioning machine that includes an extendable leg assembly for positioning a component such as a measurement probe within a working volume of the machine. The extendable leg assembly includes a first member and a second member which move relative to one another when the extendable leg assembly changes length. The first member including an axial arrangement of magnets forming part of a linear motor for extending and retracting the extendable leg assembly, and at least one resilient member for absorbing at least some of any axial thermal expansion or contraction of the magnets in use.

公开(公告)号：US10191476B2

公开(公告)日：2019-01-29

申请号：US14901624

申请日：2014-06-25

Applicant: RENISHAW plc

Inventor： Ramkumar Revanur ,  Rupesh Badole ,  Sanjay Dinde ,  Mayur Lankeshwar

IPC: G05B19/4099 ,  B33Y50/02

Abstract: An apparatus and methods for generating geometric data for use in an additive manufacturing process. The apparatus includes a processing unit. The processing unit may be arranged for receiving data defining surface geometry of a plurality of objects to be built together in an additive manufacturing process, providing a user interface that allows a user to define a location of each object within a common build volume and carrying out a slicing operation on at least one of the objects located in the common build volume independently from another one of objects located in the common build volume. The slicing operation determines sections of the at least one object to be built in the additive manufacturing process. In one embodiment, the objects are defined in a hierarchical data structure. Supports for supporting the objects during the build may be defined with reference to a 2-dimensional support cross-section.

公开(公告)号：US20180369977A1

公开(公告)日：2018-12-27

申请号：US16069360

申请日：2017-01-10

Applicant: RENISHAW PLC ,  METROLOGY SOFTWARE PRODUCTS LIMITED

Inventor： Peter Russell HAMMOND

IPC: B23Q17/22 ,  G01B21/04 ,  G05B19/401

Abstract: A calibration device (30) for a machine tool is described that includes a base (36) attachable to a machine tool and a calibration artefact (32), such as a sphere of known radius. A deflection mechanism attaches the calibration artefact to the base and allows movement of the calibration artefact (32) relative to the base (36) when an external force is applied to the calibration artefact (32). The deflection mechanism also maintains the calibration artefact (32) in a defined rest position relative to the base (36) in the absence of an applied external force. A sensor (46) is provided for sensing the extent of movement of the calibration artefact (32) relative to the base (36). A method of using the device (30) with a reference tool to accurately determine a position of a calibration artefact (32) is also described.

公开(公告)号：US20180345414A1

公开(公告)日：2018-12-06

申请号：US15778422

申请日：2016-12-21

Applicant: RENISHAW PLC

Inventor： Ramkumar REVANUR ,  Ceri BROWN ,  Michael Joseph MCCLELLAND ,  Mark Samuel KIRBY

IPC: B23K26/354 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/34

CPC classification number: B33Y50/00 ,  B22F2003/1056 ,  B22F2003/1057 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P10/295

Abstract: A method of building a workpiece in an additive manufacturing process, in which the workpiece is built through layer-by-layer solidification of material. The method includes, for a bridging layer in which an area to be solidified bridges material solidified as separate islands in an immediately preceding layer, first, solidifying separated portions of the area, each separated portion connected with a different one of the islands of the preceding layer, and then solidifying material between the separated portions to join the separated portions together.

公开(公告)号：US20180333779A1

公开(公告)日：2018-11-22

申请号：US15738385

申请日：2016-07-25

Applicant: RENISHAW PLC

Inventor： Christopher John SUTCLIFFE

IPC: B22F3/105 ,  B33Y30/00

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1059 ,  B29C64/153 ,  B29C64/20 ,  B29C64/35 ,  B33Y30/00 ,  Y02P10/295

Abstract: This invention concerns a flow device for an additive manufacturing apparatus, in which material is consolidated in a layer-by-layer manner to build a part. The flow device comprises a first member having at least one inlet aperture therein and a second member having three or more downstream apertures therein. The first and second members are connected such that the downstream apertures of the second member are in fluid communication with the inlet aperture of the first member with a shortest fluid path from the inlet aperture to each downstream aperture being substantially the same.

公开(公告)号：US20180306570A1

公开(公告)日：2018-10-25

申请号：US15955097

申请日：2018-04-17

Applicant: RENISHAW PLC

Inventor： Stephen Mark ANGOOD ,  Hugo George DERRICK ,  Stephen Paul HUNTER

IPC: G01B11/00

Abstract: A coordinate positioning apparatus having first and second relatively moveable bodies, at least the first body having at least one sheet or plate of material arranged to provide a load-bearing structure having a plurality of planar load-bearing members and on which at least one member is mounted to the first body via a mount which is coupled to at least three, non-parallel planar load-bearing members of the first body, such that the planes of the at least three non-parallel planar load-bearing members intersect each other at a common point.

公开(公告)号：US20180304276A1

公开(公告)日：2018-10-25

申请号：US15955120

申请日：2018-04-17

Applicant: RENISHAW PLC

Inventor： Stephen Paul HUNTER

IPC: B03C1/30 ,  G01B5/008

CPC classification number: G01B21/04 ,  G01B5/0004 ,  G01B5/008

Abstract: A coordinate positioning apparatus for inspecting an artefact. The coordinate positioning apparatus includes at least one moveable member moveable in at least one degree of freedom, and at least one motor and at least one bearing arrangement for facilitating said movement. At least a part of the at least one motor and/or at least one bearing arrangement are located inside a protective housing therefor. A ferromagnetic contamination trap comprising at least one magnet is provided and configured to attract and retain ferromagnetic contamination entering the protective housing.

公开(公告)号：US20180246321A1

公开(公告)日：2018-08-30

申请号：US15755233

申请日：2016-09-21

Applicant: RENISHAW PLC

Inventor： Paul CAMPTON ,  Ceri BROWN

IPC: G02B26/10 ,  G02B26/08 ,  B29C64/268 ,  B29C64/153 ,  B33Y30/00 ,  B23K26/06

CPC classification number: G02B26/101 ,  B22F3/1055 ,  B22F2003/1056 ,  B23K26/0643 ,  B23K26/0648 ,  B29C64/153 ,  B29C64/20 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  G02B26/0816 ,  G02B26/0875 ,  Y02P10/295

Abstract: This invention concerns an additive manufacturing apparatus for building an object by consolidating material in a layer-by-layer manner using an energy beam. The additive manufacturing apparatus comprising an optical module for steering a laser beam onto the material and for collecting light generated by an interaction of the laser beam with the material. The optical module comprises a beam splitter angled relative to an optical path shared by the laser beam and the collected light. The beam splitter separates the collected light from a path of the laser beam for directing the collected light to a detector. The optical module further comprises a corrective optical element for correcting for at least one optical aberration introduced into the collected light by the beam splitter.