A welding positioning device and welding apparatus

Abstract

The application discloses a welding positioning device and welding equipment, which comprises a main plate and a pressing block, wherein the pressing block is connected with the main plate; a guide hole is arranged on the welding positioning device, the guide hole penetrates through the main plate and the pressing block along a first direction x, a protection sheet is embedded in the guide hole and can move in the guide hole along the first direction x; the area of the orthogonal projection of a tab on a plane perpendicular to the first direction x is S1; the plane of the main plate away from the pressing block is a first plane, the guide hole penetrates through the first plane, the area of the guide hole on the first plane is S2, and 0.14<=S2 / S1<=0.65 is satisfied. The application realizes the guiding and positioning effect of the protection sheet by arranging the guide hole, avoids the deviation of the protection sheet, and simultaneously limits the relationship between the area of the guide hole and the projection area of the tab, so that the protection sheet can completely cover the welding area of the tab, the welding yield of the protection sheet and the tab is improved, and the overall safety performance of the battery is improved.

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