Patent ID: 9662739
Date: 2017-05-30
CPC Classifications: B23K,G06T

Claim:
1. A spot welding system comprising: a plurality of robots, each including a spot welding gun; an inspection management device for managing an electrode inspection for inspecting electrodes of the spot welding gun, the electrode inspection being executed in each of the robots; and a notification unit for notifying the inspection management device of a candidate of the electrode inspection to be executed in each of the robots, and the notification unit being configured to notify plural kinds of electrode inspections with respect to one kind of electrode which is arranged in the spot welding gun, wherein each of the robots comprises an inspection execution unit for selectively executing one inspection of the plural kinds of electrode inspections with respect to said one kind of electrode which is arranged in the spot welding gun, wherein the inspection management device comprises an inspection instruction unit for instructing an electrode inspection to be executed in each of the robots, wherein the inspection instruction unit of the inspection management device is configured to instruct the electrode inspection to be executed in each of the robots based on the electrode inspection candidate notified by the notification unit of each of the robots, and wherein each of the robots further comprises an inspection selection unit for selecting the electrode inspection candidate, and wherein each inspection selection unit is configured to select the electrode inspection candidate based on at least one of a number of welding points, a number of times of electrode polishing, and position change amounts of the electrodes.