公开(公告)号：US20230381886A1

公开(公告)日：2023-11-30

申请号：US18031508

申请日：2022-07-18

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jin Yong LEE ,  Hun Bum JUNG ,  Min Cheol PARK ,  Jong Baek KIM

IPC: B23K20/26 ,  B23K20/10

CPC classification number: B23K20/26 ,  B23K20/10 ,  B23K2101/38

Abstract: An ultrasonic welding apparatus includes: a pressing force measuring anvil including a pressing force measuring sensor; a horn which is installed to vertically move above the pressing force measuring anvil and presses the pressing force measuring anvil when moving downward; a horn down stroke adjustment part that adjusts a down stroke of the horn so that a pressing force of the horn is within a preset pressing force range; and a welding anvil on which welding target members to be welded by the horn are and supportable by the welding anvil and of which a position is changed to a position of the pressing force measuring anvil so that the welding anvil is positioned under the horn after the down stroke of the horn is adjusted to be within the preset pressing force range.