Title:
【発明の名称】ドリルを研削する研削装置
Document Type and Number:
Japanese Patent JP2640943
Kind Code:
B2
Abstract:
This invention relates to a fixture for holding twist drills having cutting edges to be ground. A stand is mounted on a base plate, which is displaceable and/or rotatable. The stand carries a bracket, which carries gripping unit for gripping the drill to be ground. The gripping unit comprises two gripping jaws and is adapted to be detachably mounted on the bracket in two predetermined positions. The bracket is formed with angle-section track grooves for guiding the gripping unit. Each gripping jaw comprises two outer edges, which extend along said track grooves, and adjacent to said outer edges is formed with two angle-section guides, which are adapted to interengage with said track grooves and to be slidably guided by said track grooves. The bracket is provided with a thrust screw for clamping the angle-section guides in the track grooves. A grinding apparatus is also disclosed, which comprises a grinding unit carrying a grinding wheel and in which the base plate is movable relative to the grinding unit.
Inventors:
RAINHORUTO RAIRINGU
KAARU RAIRINGU
KAARU RAIRINGU
Application Number:
JP19966287A
Publication Date:
August 13, 1997
Filing Date:
August 10, 1987
Export Citation:
Assignee:
RAINHORUTO RAIRINGU
KAARU RAIRINGU
KAARU RAIRINGU
International Classes:
B24B3/24; B24B3/28; (IPC1-7): B24B3/28
Domestic Patent References:
| JP5226691A |
Attorney, Agent or Firm:
Akimoto Teruo