Title:
【発明の名称】回転角制御によるねじ締付け装置
Document Type and Number:
Japanese Patent JP2511094
Kind Code:
B2
Abstract:
The turn-of-nut tightening method that is improved by determining the starting point only through measurements of the angle and time relationship to determine the linear portion of the tightening curve, which is extended to the previous free running speed point where the corresponding angle is determined as the starting angle, to which is added a fixed turning amount to control the end of the tightening. As a specific embodiment, the turning angle is chosen as the variable and measured with specific time intervals. Using fixed time intervals, time is removed as a variable. Therefore, with a simple and economical angle measuring device, such as a shaft encoder, tightening is accurately controlled.
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Inventors:
INABA HIDETOSHI
HASEGAWA HIROSHI
KATO HIROSHI
HASEGAWA HIROSHI
KATO HIROSHI
Application Number:
JP2278788A
Publication Date:
June 26, 1996
Filing Date:
February 04, 1988
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B25B23/151; B23P19/06; B25B23/14; G05D17/02; (IPC1-7): B25B23/151; B23P19/06
Domestic Patent References:
| JP5570578A | ||||
| JP62102978A | ||||
| JP5427598B2 |
Attorney, Agent or Firm:
Akio Takahashi (1 person outside)