scholarly journals Design and Validation of a Universal 6D Seam Tracking System in Robotic Welding Based on Laser Scanning

10.5772/4891 ◽  
2006 ◽  
Author(s):  
Mikael Fridenfalk ◽  
Gunnar Bolmsjo
Keyword(s):  
Laser Scanning ◽  
Tracking System ◽  
Seam Tracking ◽  
Robotic Welding

Intelligent seam tracking using ultrasonic sensors for robotic welding

Robotica ◽  
1997 ◽  
Vol 15 (3) ◽  
pp. 275-281 ◽  
Author(s):  
Ajay Mahajan ◽  
Fernando Figueroa
Keyword(s):  
Tracking System ◽  
Welding Process ◽  
Seam Tracking ◽  
Robotic Welding ◽  
Ultrasonic Sensors ◽  
Intelligent Sensor ◽  
Novel Approach ◽  
Transmitted Waves ◽  
Welding Torch ◽  
Arc Welding Process

This paper presents a novel approach for seam tracking using ultrasonics. An ultrasonic seam tracking system has been developed for robotic welding which tracks a seam that curves freely on a two-dimensional surface. The seam is detected by scanning the area ahead of the torch and monitoring the amplitude of the waves received after reflection from the workpiece surface. Scanning is accomplished by using two ultrasonic sensors (a transmitter and a receiver) mounted on a stepper motor such that the transmitter angle is the same as the receiver angle. The motor is mounted on the end-effector just ahead of the welding torch and covers a ninety degree arc in front of the torch. If there is no seam then the receiver receives most of the transmitted waves after reflection, but if there is a seam then most of the transmitted waves are dispersed in directions other than that of the receiver. The system has been tested and is very robust in the harsh environments generated by the arc welding process. The robustness of the system stems from using various schemes such as time windowing, a waveguide, air and metal shields, and an intelligent sensor manager. This ultrasonic system offers some distinct advantages over traditional systems using vision and other sensing techniques. It can be used to weld very shiny surfaces, and is a very economical method in terms of cost as well as computational intensity. The system can be used to detect seams less than 0.5 mm wide and 0.5 mm deep.

Automated seam tracking system based on passive monocular vision for automated linear robotic welding process

2017 ◽  
Author(s):  
Átila Astor Weis ◽  
Adriano Velasque Werhli ◽  
Nelson L. Duarte Filho ◽  
Luciane Baldassari Soares ◽  
Cristiano Rafael Steffens ◽  
...  
Keyword(s):  
Tracking System ◽  
Welding Process ◽  
Monocular Vision ◽  
Seam Tracking ◽  
Robotic Welding

Seam tracking system based on rotating arc sensor for robot arc welding

2018 ◽  
Vol 21 (6) ◽  
pp. 1407-1412
Author(s):  
Jian-Hui Du ◽  
Jian-Xin Deng ◽  
Ke-Jian Huang ◽  
Jie-Sheng Huang ◽  
Xie Lei
Keyword(s):  
Arc Welding ◽  
Tracking System ◽  
Seam Tracking ◽  
Arc Sensor ◽  
Rotating Arc ◽  
Rotating Arc Sensor

scholarly journals Research on the Deviation Sensing of V-groove Weld Seam based on a Novel Two Channel Acoustic Sensor

2021 ◽  
Author(s):  
Yanfeng Gao ◽  
Jianhua Xiao ◽  
Genliang Xiong ◽  
Hua Zhang
Keyword(s):  
Weld Seam ◽  
Welding Process ◽  
Simulation Method ◽  
Seam Tracking ◽  
Acoustic Sensor ◽  
Robotic Welding ◽  
Weld Seam Tracking ◽  
Novel Method ◽  
Linear Property ◽  
Sensing Performance

Abstract It is essential to sense the deviation of weld seam real-timely in robotic welding process. However, welding process always accompanied with high temperature, strong arc light and background noises, which significantly affects the application of sensors. In this study, a novel acoustic sensor was developed. This sensor consists of two microphones. Based on the sound signals collected by these two microphones, the deviation of weld seam was detected. The frequency response of the developed acoustic sensor was studied through simulation method firstly, and then the sensing performance of it was analyzed with experiments. The experimental results show that the developed acoustic sensor has a linear property for the deviation detection of V-groove weld seam. This research provides a novel method for weld seam tracking.

Study on Seam Tracking System Based on Stripe Type Laser Sensor and Welding Robot

2015 ◽  
Vol 42 (5) ◽  
pp. 0502005
Author(s):  
李琳 Li Lin ◽  
林炳强 Lin Bingqiang ◽  
邹焱飚 Zou Yanbiao
Keyword(s):  
Tracking System ◽  
Seam Tracking ◽  
Laser Sensor ◽  
Welding Robot
Sign in / Sign up

Export Citation Format

Share Document