Fastening device and control method of the same

Patent metadata

Field	Value
Publication number	US-9700970-B2
Application number	US-201314089379-A
Country	US
Kind code	B2
Filing date	Nov 25, 2013
Priority date	Feb 4, 2013
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A fastening device may include a fastening tool body having a fastener on one end; a drive unit installed on the fastening tool body and providing fastening power to the fastener; a gyroscopic sensor that is installed on the fastening tool body and detects the displacement of the fastening tool body and outputs a detection signal thereof; an angle sensor that detects the angle of the fastening tool body and outputs a detection signal thereof to a controller; and the controller that receives the signals output from the gyroscopic sensor and the angle sensor and output a set actuating signal to the drive unit.

First claim

What is claimed is:

1. A control method of a fastening device for fastening a predetermined part to a plurality of fastening points of a fastening object, the control method comprising:
(a) making a measurement of a displacement of a fastening tool body by a gyroscopic sensor;
(b) determining by a controller whether the measurement of the displacement of the fastening tool body is a set value;
(c) when the measurement of the displacement is the set value, making a measurement of an angle of the fastening tool body secured to a fastening point by an angle sensor; and
(d) applying a fastening torque corresponding to the fastening point to a drive unit in accordance with the controller, depending on the measurement of the angle of the fastening tool body,
wherein, in step (d), the controller identifies a type of the fastening point by comparing the measurement of the angle made by the angle sensor with a preset reference value, and outputs a corresponding signal.

2. The method of claim 1 , wherein, in step (b), the set value is 0.

3. The method of claim 1 , wherein, after step (d), the steps (a), (b) and (c) are repeatedly carried out on the other fastening points.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Lee Jaehyun

Classifications

• B23P19/04 Primary

  for assembling or disassembling parts · CPC title

• B25B23/14

  Arrangement of torque limiters or torque indicators in wrenches or screwdrivers (couplings for transmitting rotation or clutches F16D; devices for measuring torque per se G01L) · CPC title

• B23P19/066 Primary

  by electrical means · CPC title

• B25F5/00

  Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for · CPC title

• B25B28/00 Primary

  Portable power-driven joining or separation tools (B25B21/00 takes precedence) · CPC title