(19)
(11) EP 4 088 861 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
18.01.2023 Bulletin 2023/03

(43) Date of publication:
16.11.2022 Bulletin 2022/46

(21) Application number: 21733364.0

(22) Date of filing: 26.04.2021
(51) International Patent Classification (IPC): 
B24B 5/04(2006.01)
B23Q 1/01(2006.01)
 B24B 41/06(2012.01)
B24B 41/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B24B 5/04; B24B 41/06; B24B 41/007
(86) International application number:
PCT/CN2021/089928
(87) International publication number:
WO 2022/205548 (06.10.2022 Gazette 2022/40)
(84) Designated Contracting States:
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 States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 29.03.2021 CN 202110334644

(71) Applicant: Hiecise Precision Equipment (Kunshan) Co., Ltd.
Kunshan, Jiangsu 215337 (CN)

(72) Inventors:
  • CHEN, Junchuang
    Kunshan, Jiangsu 215337 (CN)
  • CAO, Yuzhong
    Kunshan, Jiangsu 215337 (CN)
  • XU, Shaojun
    Kunshan, Jiangsu 215337 (CN)
  • DU, Haitao
    Kunshan, Jiangsu 215337 (CN)
  • ZHU, Shuping
    Kunshan, Jiangsu 215337 (CN)
  • JIN, Yao
    Kunshan, Jiangsu 215337 (CN)
  • MEI, Zhiyi
    Kunshan, Jiangsu 215337 (CN)
  • MA, Sufang
    Kunshan, Jiangsu 215337 (CN)

(74) Representative: Herzog IP Patentanwalts GmbH 
Steinstraße 16-18
40212 Düsseldorf
40212 Düsseldorf (DE)


(56) References cited: : 
   
       


    (54) CYLINDRICAL GRINDING MACHINE


    (57) The present disclosure provides a cylindrical grinder, which comprises a frame, a bed, a workbench, Z-axis guide rail components, X-axis guide rail components, B-axis rotating components, and a grinding frame, and the frame is fixed on the ground, the frame is connected to the bed through X-axis guide rail components, the workbench is connected to the bed through Z-axis guide rail components, and the grinding frame is connected to the workbench through B-axis rotating components. The present disclosure sets Z-axis guide rail components, X-axis guide rail components and B-axis rotating components, and by setting the Z-axis guide rail components as a negative pressure adsorption and static pressure support structure, setting the X-axis guide rail components as an air flotation unloading structure, and setting the B-axis rotating components as a direct-drive structure, the problem that the position of each component can not be adjusted quickly and efficiently is avoided.