Title:
GRINDING MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/175723
Kind Code:
A1
Abstract:
A grinding machine (1, 2) includes, in an alternatively selectable configuration: a first grindstone spindle unit (30) including a first unit housing (32) that rotatably supports a first grindstone spindle (31) by a fluid bearing (32b) that uses circulating fluid; and a second grindstone spindle unit (130) including a second unit housing (132) that rotatably supports a second grindstone spindle (131) by a rolling bearing (132b) that does not use the circulating fluid. A grindstone stand body (20) includes a connection channel (23) configured so as to, in a state in which the first grindstone spindle unit (30) is mounted, allow flowing of the circulating fluid to and from the first unit housing (32). The connection channel (23) is configured so as to be closed by the second unit housing (132) in a state in which the second grindstone spindle unit (130) is mounted on the grindstone stand main body (20).
Inventors:
NAGAYA HISAYUKI (JP)
FUKUTA EIJI (JP)
TANAKA TOMOYA (JP)
FUKUTA EIJI (JP)
TANAKA TOMOYA (JP)
Application Number:
PCT/JP2022/011633
Publication Date:
September 21, 2023
Filing Date:
March 15, 2022
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
B24B47/10
Foreign References:
| JPH0671046U | 1994-10-04 | |||
| JPS63216673A | 1988-09-08 | |||
| JPS59192410A | 1984-10-31 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
Download PDF:
Previous Patent: LEARNING PROGRAM AND LEARNER
Next Patent: LASER WELDING METHOD AND METHOD FOR MANUFACTURING ROTARY ELECTRICAL MACHINE
Next Patent: LASER WELDING METHOD AND METHOD FOR MANUFACTURING ROTARY ELECTRICAL MACHINE