Patent
Welding torch for arc welding robot
TLDR
In this article, a welding torch for an arc welding robot comprises an acceleration sensor which is disposed inside the welding torch and provided on each axis so as to detect shocks received when the welding torches are brought into contact with a structure to be welded as the vibration acceleration in three axial directions orthogonal to each other.Abstract:
PROBLEM TO BE SOLVED: To provide a welding torch having a compact shock detection circuit of high detection sensitivity of collision. SOLUTION: A welding torch for an arc welding robot comprises an acceleration sensor which is disposed inside the welding torch and provided on each axis so as to detect shocks received when the welding torch is brought into contact with a structure to be welded as the vibration acceleration in three axial directions orthogonal to each other, and a contact detection means 102 which is connected to the acceleration sensor on each axis and outputs the pulse signal when the detection signal of the acceleration sensor exceeds the threshold for the reference, and further comprises a signal processing circuit 101 comprising a first AND circuit to convert the signal output from the contact detection means of each axis into the contact signal, and a shock detection circuit 14 built therein to stop the robot after the contact detection signal output from the signal processing circuit is transmitted to a robot controller 15. COPYRIGHT: (C)2004,JPO&NCIPIread more
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