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Title: Automatic monitoring of the alignment and wear of vibration welding equipment

Abstract

A vibration welding system includes vibration welding equipment having a welding horn and anvil, a host machine, a check station, and a welding robot. At least one displacement sensor is positioned with respect to one of the welding equipment and the check station. The robot moves the horn and anvil via an arm to the check station, when a threshold condition is met, i.e., a predetermined amount of time has elapsed or a predetermined number of welds have been completed. The robot moves the horn and anvil to the check station, activates the at least one displacement sensor, at the check station, and determines a status condition of the welding equipment by processing the received signals. The status condition may be one of the alignment of the vibration welding equipment and the wear or degradation of the vibration welding equipment.

Inventors:
; ; ;
Publication Date:
Research Org.:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1358241
Patent Number(s):
9,658,612
Application Number:
14/557,923
Assignee:
GM Global Technology Operations LLC DOEEE
DOE Contract Number:
EE0002217
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Dec 02
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Spicer, John Patrick, Cai, Wayne W., Chakraborty, Debejyo, and Mink, Keith. Automatic monitoring of the alignment and wear of vibration welding equipment. United States: N. p., 2017. Web.
Spicer, John Patrick, Cai, Wayne W., Chakraborty, Debejyo, & Mink, Keith. Automatic monitoring of the alignment and wear of vibration welding equipment. United States.
Spicer, John Patrick, Cai, Wayne W., Chakraborty, Debejyo, and Mink, Keith. Tue . "Automatic monitoring of the alignment and wear of vibration welding equipment". United States. doi:. https://www.osti.gov/servlets/purl/1358241.
@article{osti_1358241,
title = {Automatic monitoring of the alignment and wear of vibration welding equipment},
author = {Spicer, John Patrick and Cai, Wayne W. and Chakraborty, Debejyo and Mink, Keith},
abstractNote = {A vibration welding system includes vibration welding equipment having a welding horn and anvil, a host machine, a check station, and a welding robot. At least one displacement sensor is positioned with respect to one of the welding equipment and the check station. The robot moves the horn and anvil via an arm to the check station, when a threshold condition is met, i.e., a predetermined amount of time has elapsed or a predetermined number of welds have been completed. The robot moves the horn and anvil to the check station, activates the at least one displacement sensor, at the check station, and determines a status condition of the welding equipment by processing the received signals. The status condition may be one of the alignment of the vibration welding equipment and the wear or degradation of the vibration welding equipment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 23 00:00:00 EDT 2017},
month = {Tue May 23 00:00:00 EDT 2017}
}

Patent:

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  • A vibration welding system includes vibration welding equipment having a welding horn and anvil, a host device, a check station, and a robot. The robot moves the horn and anvil via an arm to the check station. Sensors, e.g., temperature sensors, are positioned with respect to the welding equipment. Additional sensors are positioned with respect to the check station, including a pressure-sensitive array. The host device, which monitors a condition of the welding equipment, measures signals via the sensors positioned with respect to the welding equipment when the horn is actively forming a weld. The robot moves the horn andmore » anvil to the check station, activates the check station sensors at the check station, and determines a condition of the welding equipment by processing the received signals. Acoustic, force, temperature, displacement, amplitude, and/or attitude/gyroscopic sensors may be used.« less
  • This invention relates to a dynamic beam/seam alignment control system for electron beam welds utilizing video apparatus. The system includes automatic control of workpiece illumination, near infrared illumination of the workpiece to limit the range of illumination and camera sensitivity adjustment, curve fitting of seam position data to obtain an accurate measure of beam/seam alignment, and automatic beam detection and calculation of the threshold beam level from the peak beam level of the preceding video line to locate the beam or seam edges.
  • The present invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignment with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a biasing device for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base is indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld jointmore » with the electron beam during each welding pass.« less
  • This invention relates to a dynamic beam/seam alignment control system for electron beam welds utilizing video apparatus. The system includes automatic control of workpiece illumination, near infrared illumination of the workpiece to limit the range of illumination and camera sensitivity adjustment, curve fitting of seam position data to obtain an accurate measure of beam/seam alignment, and automatic beam detection and calculation of the threshold beam level from the peak beam level of the preceding video line to locate the beam or seam edges. 4 claims.
  • The present invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignment with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a biasing device for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base is indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld jointmore » with the electron beam during each welding pass.« less