Global Patent Index - EP 4186638 A1

EP 4186638 A1 20230531 - PRECISE CALIBRATION APPARATUS AND METHOD FOR MAGNETORHEOLOGICAL POLISHING DEVICE

Title (en)

PRECISE CALIBRATION APPARATUS AND METHOD FOR MAGNETORHEOLOGICAL POLISHING DEVICE

Title (de)

VORRICHTUNG UND VERFAHREN ZUR GENAUEN KALIBRIERUNG EINER MAGNETORHEOLOGISCHEN POLIERVORRICHTUNG

Title (fr)

APPAREIL ET PROCÉDÉ D'ÉTALONNAGE PRÉCIS POUR DISPOSITIF DE POLISSAGE MAGNÉTORHÉOLOGIQUE

Publication

EP 4186638 A1 20230531 (EN)

Application

EP 20945847 A 20201027

Priority

  • CN 202010704882 A 20200721
  • CN 2020123912 W 20201027

Abstract (en)

The present disclosure provides a precision calibrating device and a precision calibrating method for a magnetorheological polishing device, which realize an automatic and quick calibration process. It is ensured that a polishing gap is kept within an allowable error range when the magnetorheological polishing device processes surfaces of different optical elements, thereby effectively controlling a removal function, reducing or eliminating surface residual errors after processing and low frequency errors and medium frequency errors introduced by insufficient trajectory precision of a mechanical arm, and improving a processing precision of the magnetorheological polishing device based on the mechanical arm.

IPC 8 full level

B24B 49/00 (2012.01)

CPC (source: CN EP)

B24B 1/005 (2013.01 - CN); B24B 13/00 (2013.01 - CN); B24B 31/112 (2013.01 - EP); B24B 47/22 (2013.01 - EP); B24B 49/00 (2013.01 - CN); B24B 51/00 (2013.01 - CN); B24B 1/005 (2013.01 - EP); B24B 49/00 (2013.01 - EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4186638 A1 20230531; EP 4186638 A4 20231220; CN 111805427 A 20201023; CN 111805427 B 20220524; WO 2022016721 A1 20220127

DOCDB simple family (application)

EP 20945847 A 20201027; CN 202010704882 A 20200721; CN 2020123912 W 20201027