Tool, task management device, task management method, and task management system

Patent metadata

Field	Value
Publication number	US-11586175-B2
Application number	US-201816765669-A
Country	US
Kind code	B2
Filing date	Dec 3, 2018
Priority date	Dec 8, 2017
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A tool is equipped with a torque sensor, suited for a tightening task of a fastening component of a device such as a fluid control system that requires a large number of fastening components for assembly and has a narrow space for access to the fastening components, and capable of automatically detecting a tightening torque. The tool includes a torque sensor capable of detecting a tightening torque for tightening a fastening component acting on a bit. The torque sensor initiates measurement of the tightening torque when the tightening torque detected exceeds a set threshold value, completes measurement when the tightening torque detected falls below the set threshold value and a set time elapses, and outputs torque-related data formed on the basis of measurement data from measurement initiation to measurement completion and including a measurement time. The torque-related data includes a peak value of the measurement data.

First claim

What is claimed is:

1. A task management device for managing a tightening task of tightening each of a plurality of fastening components included in a product by using a tool,
the tool including a torque sensor capable of detecting a tightening torque for tightening a fastening component acting on a bit,
the torque sensor initiating recording of measurement data of the tightening torque when the tightening torque detected exceeds a set threshold value, completing measurement when the tightening torque detected falls below the set threshold value and a set time elapses, and outputting torque-related data based on measurement data including a measurement time from measurement initiation to measurement completion,
the task management device being configured to, when the torque-related data is received, extract and process, from among a plurality of images of the tool captured from a plurality of viewpoints during a tightening task of one fastening component, a plurality of images corresponding to the measurement time included in the torque-related data, and detect an engagement position of the bit that engages with the one fastening component.

2. The task management device according to claim 1 ,
wherein the plurality of images of the tool include at least the first marker and the second marker.

3. A task management system for managing a tightening task of tightening each of a plurality of fastening components included in a product, the task management system comprising:
a tool including a torque sensor capable of detecting a tightening torque for tightening a fastening component acting on a bit, and a first marker and a second marker for image processing,
the torque sensor initiating recording of measurement data of the tightening torque when the tightening torque detected exceeds a set threshold value, completing measurement when the tightening torque detected falls below the set threshold value and a set time elapses, and outputting torque-related data formed on the basis of measurement data from measurement initiation to measurement completion;
a first imaging device and a second imaging device that are disposed in predetermined positions relative to the product, and capture images of the tool that include at least the first marker and the second marker during the tightening task from mutually different viewpoints;
a storage device that stores the images captured by the first imaging device and the second imaging device; and
a processing device that, when the torque-related data is received, extracts and processes, from among a plurality of images of the tool captured from a plurality of viewpoints during a tightening task of one fastening component and stored in the storage device, a plurality of images corresponding to the measurement time included in the torque-related data, and detects an engagement position of the bit that engages with the one fastening component.

Assignees

• Connectec Japan Corp
• Fujikin Kk

Inventors

• Horikawa Kazutoshi
• Nebashi Toru
• Machida Hidekazu
• Shimoishizaka Nozomi
• Harada Akihiro
• Ochiishi Masahiko
• Yamato Yoshiaki
• Karube Hiroki
• Koyomogi Mutsunori
• Shinohara Tsutomu

Classifications

• B25B23/14 Primary

  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

• Y02P90/02

  Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS] · CPC title

• G01L5/24

  for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed · CPC title

• G05B19/418

  Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] · CPC title

• G01L3/08

  involving optical means for indicating · CPC title