Title:
TESTED PIECE FIXING DEVICE FOR DYNAMIC BALANCE TEST MACHINE
Document Type and Number:
Japanese Patent JP2019128283
Kind Code:
A
Abstract:
To provide a tested piece fixing device capable of fixing both of a first reference inner peripheral part and a second reference inner peripheral part being provided and spaced in a penetration direction of a through hole and dividing the through hole on a tested piece having the through hole, to a dynamic balance test machine.SOLUTION: A tested piece fixing device 3 comprises: a collet 15; a first taper part 10H whose position in a vertical direction is fixed; and a second taper part 17 which can be lifted up at a position higher than the first taper part 10H. The collet 15 has a first cylindrical part 15A whose diameter is expanded and fitted to a first reference inner peripheral part 5C of the tested piece 5; and a second cylindrical part 15B whose diameter is expanded and fitted to a second reference inner peripheral part 5D of the tested piece 5. A first outer peripheral face 10J of the first taper part 10H surrounded by the first cylindrical part 15A is reduced in a diameter as going to an upper side. A second outer peripheral face 17A of the second taper part 17 surrounded by the second cylindrical part 15B is reduced in a diameter as going to a lower side.SELECTED DRAWING: Figure 1
Inventors:
NISHIWAKI KIYOSHI
ITO HIDETOSHI
ITO HIDETOSHI
Application Number:
JP2018010694A
Publication Date:
August 01, 2019
Filing Date:
January 25, 2018
Export Citation:
Assignee:
NAGAHAMA SEISAKUSHO LTD
International Classes:
G01M1/16
Domestic Patent References:
| JP2018004484A | 2018-01-11 | |||
| JPS5952440U | 1984-04-06 | |||
| JP2002350270A | 2002-12-04 | |||
| JPS62203432U | 1987-12-25 | |||
| JP2000039376A | 2000-02-08 | |||
| JPH07136817A | 1995-05-30 | |||
| JPS63191509A | 1988-08-09 |
Attorney, Agent or Firm:
Patent Business Corporation Ai Patent Office