| 摘要 |
PROBLEM TO BE SOLVED: To provide a perpendicularity sensor for spot welding electrodes, a sensor that facilitates durability as well as measuring accuracy, and also to provide a perpendicularity measuring method using this sensor. SOLUTION: The head 10 is formed in a shape like an electrode and mounted on an electrode holder in place of an electrode. Three or more pressure sensitive elements 15, which detect pressure as a variation of resistance value, are interposed, through an elastic sheet 13, between the surfaces opposing each other in which the head 10 is each formed in the front and rear divided parts, namely the front-end head part 10b and the base-end head part 10a. These head parts 10b, 10a are integrated each in a freely tiltable manner through expansion and contraction of the elastic sheet 13 between the opposing surfaces.
|
