公开(公告)号：EP2431707B1

公开(公告)日：2018-09-19

申请号：EP11008885.3

申请日：2006-04-10

申请人： Renishaw Plc.

发明人： McFarland, Geoffrey ,  Nai, Kenneth Cheng Hoe ,  Weston, Nicholas John ,  McLean, Ian William

IPC分类号： G01B21/04 ,  G05B19/402

CPC分类号： G01B21/045 ,  G05B19/401 ,  G05B2219/37043 ,  G05B2219/37442

摘要： An articulating probe head is described on which a surface sensing device may be mounted. The articulating probe head provides rotational movement of the surface sensing device about at least one axis. The probe head is provided with at least one rotary measurement device to measure the angular position of the surface sensing device about said at least one axis and said at least one rotary measurement device is error mapped.

公开(公告)号：EP2140225B1

公开(公告)日：2018-08-22

申请号：EP08737094.6

申请日：2008-04-23

申请人： Renishaw PLC

发明人： MAMOUR, Khaled ,  GRZESIAK, Jean-Louis

IPC分类号： G01B21/04 ,  G01B5/008 ,  G01B5/00 ,  G01B5/20

CPC分类号： G01B5/0032 ,  G01B5/012 ,  G01B21/045

摘要： A method of determining the dimensions and location of a surface feature, for example a valve seat. The surface of the feature is measured, for example using a spiral scan path with a tactile probe and the multiple data points acquired from the scan are used to create a digitized image. The digitized image is fitted to a nominal image (e.g. CAD data) of the surface feature. The deviation of the digitized image from the nominal image is used to determine at least one of the dimensions, location and form deviation of the surface feature.

公开(公告)号：EP3352929A1

公开(公告)日：2018-08-01

申请号：EP16775822.6

申请日：2016-09-21

申请人： Renishaw Plc.

发明人： CAMPTON, Paul ,  BROWN, Ceri

IPC分类号： B22F3/105 ,  B29C67/00 ,  G02B27/14 ,  G02B27/09

CPC分类号： 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

摘要： 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.

公开(公告)号：EP3347681A1

公开(公告)日：2018-07-18

申请号：EP16766053.9

申请日：2016-09-08

申请人： Renishaw Plc.

发明人： SLACK, Jason ,  BALE, Richard James

IPC分类号： G01D5/347

摘要： An encoder apparatus including a scale and a readhead including a sensor including an array of sensor elements for detecting a scale signal falling on the sensor, configured such that the sensor elements' outputs that are used to determine the relative position of the scale and readhead are weighted such that the influence of the sensor elements on the determined relative position of the scale and readhead varies across the array according to a predetermined non-rectangular window function that is configured to reduce the adverse effect of undesirable frequencies in the scale signal so as to thereby reduce the encoder apparatus' sub-divisional error.

公开(公告)号：EP3332213A1

公开(公告)日：2018-06-13

申请号：EP16751629.3

申请日：2016-08-04

申请人： Renishaw PLC

发明人： MCMURTRY, David Roberts ,  ANGOOD, Stephen Mark ,  BULLED, Colin Ray ,  FOOK, David James ,  EALES, Marcus James ,  KEMP, Christopher

IPC分类号： G01B21/04 ,  B23Q1/44 ,  G01B5/00

CPC分类号： G01B21/047 ,  B23Q1/5462 ,  G01B5/0004 ,  G01B5/0016 ,  G01B21/045

摘要： A non-Cartesian coordinate positioning machine is provided that comprises an extendable leg assembly for positioning a component such as a measurement probe within a working volume of the machine, and a constraint member associated with the extendable leg assembly for providing a predetermined part of the extendable leg assembly with substantially a same orientation relative to gravity for a same position of the component within the working volume. In a preferred embodiment, the orientation relative to gravity is maintained substantially constant, so that a plane defined by the predetermined part is substantially aligned with gravity, as the component is moved around the working volume.

公开(公告)号：EP3325240A2

公开(公告)日：2018-05-30

申请号：EP16744498.3

申请日：2016-07-25

申请人： Renishaw PLC

发明人： SUTCLIFFE, Christopher, John

IPC分类号： B28B1/00 ,  B29C67/00 ,  B22F3/105

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

摘要： 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：EP3323534A1

公开(公告)日：2018-05-23

申请号：EP17209698.4

申请日：2014-02-11

申请人： Renishaw PLC

发明人： FERRAR, Ben Ian

IPC分类号： B22F3/105 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/386

CPC分类号： B23K26/142 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2999/00 ,  B23K26/0869 ,  B23K26/342 ,  B28B1/001 ,  B29C64/153 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2003/1057 ,  B22F2202/11 ,  B22F2201/02 ,  B22F2201/10

摘要： This invention concerns a selective laser solidification apparatus. The apparatus comprises a powder bed (104) onto which a powder layer can be deposited, a gas flow unit for passing a flow of gas over the powder bed (104) along a gas flow direction (118), a laser scanning unit (106) for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form one or more objects and a processing unit (131). The processing unit 131 selects a scanning sequence of the laser beam based on the gas flow direction (118). The invention also concerns a method for selecting a scanning sequence.

公开(公告)号：EP3322959A1

公开(公告)日：2018-05-23

申请号：EP16738530.1

申请日：2016-07-11

申请人： Renishaw Plc.

发明人： MCLEAN, Calum Conner ,  MCLEAN, Ian William

IPC分类号： G01B21/04 ,  B23K9/025 ,  G01B11/00 ,  G01B11/25

CPC分类号： G01B21/042 ,  G01B11/002 ,  G01B11/2518

摘要： A method of measuring at least one point on an artefact to be inspected that is located within a positioning apparatus' measurement volume, the method comprising, obtaining at least two images of the artefact obtained from different perspectives and, based on a given nominal location of a predetermined point to be measured within said positioning apparatus' measurement volume, determine the location of said predetermined point in each of the at least two images.

公开(公告)号：EP2259897B1

公开(公告)日：2018-05-02

申请号：EP09717200.1

申请日：2009-03-05

申请人： Renishaw PLC

发明人： WALLACE, David, Sven

IPC分类号： G01B5/012 ,  G01B21/04 ,  B23Q16/08

CPC分类号： G01B5/012 ,  G01B21/047 ,  Y10T29/49773 ,  Y10T29/49826 ,  Y10T29/5313

摘要： A method for orienting a surface sensing device (SSD) uses an apparatus having a support attachable to a moveable arm of a machine, such as a coordinate measuring apparatus. The support includes a first member rotatable about a first axis of rotation and a SSD for sensing the surface of a workpiece; the SSD is releasably connectable to the first member for rotation therewith. The method includes the steps of disconnecting a SSD from a support, the SSD being connected to the support in a first orientation; rotating one of the SSD and the support relative to the other of the SSD and the support and reconnecting the SSD and the support into a second orientation. An apparatus for orienting a surface sensing device is further described.

公开(公告)号：EP3289314A1

公开(公告)日：2018-03-07

申请号：EP16722346.0

申请日：2016-04-28

申请人： Renishaw PLC

发明人： REES, Martin Simon ,  HUNTER, Stephen, Paul ,  WALLACE, David Sven

IPC分类号： G01D5/244

CPC分类号： G01D5/24452 ,  G01B11/007 ,  G01D5/2449

摘要： A method of determining the sub-divisional error of an encoder apparatus that is configured to measure the position of relatively moveable parts of an apparatus on which an inspection device for inspecting an artefact is mounted. The method includes causing the inspection device to obtain measurements which includes relatively moving the relatively moveable parts of the apparatus, and using the measurements to determine the encoder apparatus' sub-divisional error.