| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a conventional spot weld gun used to make a calibration work complex because an applied pressure with a movable electrode has been measured by a pressure sensor in each of a plurality of attitudes.SOLUTION: A spot weld system 10 comprises: a spot weld gun having a counter electrode 44, a movable electrode 48, and a drive part 52; a position detection part 54 for detecting a position of the movable electrode 48; and an applied pressure change amount calculation part for calculating a change amount between a first applied pressure in a first attitude and a second applied pressure in a second attitude, on the basis of a first position of the movable electrode 48 when the drive part 52 is driven on the first applied pressure command in the first attitude, the second position of the movable electrode 48 when the drive part 52 is driven on the first applied pressure command in the second attitude, and the first applied pressure command. In the above calculation, the first applied pressure command and the first applied pressure are coincident with each other.SELECTED DRAWING: Figure 3 |
