公开(公告)号：CA1259108A

公开(公告)日：1989-09-05

申请号：CA517115

申请日：1986-08-28

Applicant: NEWCOR INC

Inventor： GEIERMANN THOMAS J

IPC: B23K11/093 ,  B23K11/08

Abstract: CONTINUOUS MOTION CIRCUMFERENTIAL SEAM WELDER A method and apparatus for creating a circumferential seam weld in surrounding relationship to a cylindrical workpiece. The workpiece is moved continuously along a work path at a preselected velocity, and is simultaneously supported for free rotation about its longitudinal central axis. The workpiece moves into engagement with opposed surfaces defined by a pair of electrodes, one of which moves relative to the other and relative to the workpiece for causing rotation of the workpiece through approximately one half revolution, whereby the two electrodes simultaneously form two welds which are about 180.degree. apart and which may individually extend up to a total angle of rotation of about 180.degree., or slightly in excess thereof, so that the welds overlap.

公开(公告)号：US3594539A

公开(公告)日：1971-07-20

申请号：US3594539D

申请日：1969-08-25

Applicant: NEWCOR INC

Inventor： GEIERMANN THOMAS J

IPC: B23K9/02 ,  B23K11/24

CPC classification number: B23K9/02

Abstract: A multiple station workpiece positioning device for positioning a workpiece at different stations relative to welding apparatus for permitting the performance of a plurality of welding operations thereon. The workpiece is mounted on a worktable and is guided for movement in a predetermined pattern by guide means. The guide means comprises a template having guide groove means therein receiving and guiding a follower member secured to the worktable. The guide groove means has a plurality of obstruction means therein to prevent a continued movement of the follower member and to accurately position the worktable at a plurality of stations relative to the welding apparatus. The obstruction means are bypassable by a movement of the worktable so that the follower member moves away from and around the obstruction means to permit a continued movement of the follower member and the worktable in the pattern defined by the guide groove means to the next obstruction means. At each location of the obstruction means, the worktable is accurately positioned relative to the welding apparatus so that appropriate energization of the welding apparatus will accurately place a weld onto a workpiece.

公开(公告)号：CA2268902C

公开(公告)日：2006-07-04

申请号：CA2268902

申请日：1997-10-20

Applicant: NEWCOR INC

Inventor： GEIERMANN THOMAS J ,  DERDOWSKI RONALD A ,  SMITH RANDY E

IPC: B23K11/14 ,  B23K11/30 ,  B23K11/31

Abstract: A welding head for projection welding wherein the spring which biases the electrode is initially preloaded to exert a significant biasing force on the electrode to maintain it against a stop to define the normal fully extended position of the electrode. The spring of the welding head is also initially precalibrated to exert an accurate predetermined biasing force on the electrode when the electrode is depressed inwardly so as to effect compression of the spring by a predetermined distance, which latter distance is of very small magnitude. The welding head is disposed in engagement with overlapping sheets so that the electrode is engaged with the sheets in alignment with a projection thereon, and the electrode is depressed through said predetermined distance so that a uniform predetermined biasing force is applied to the electrode and hence to the projection weld area.

公开(公告)号：CA2268902A1

公开(公告)日：1998-04-30

申请号：CA2268902

申请日：1997-10-20

Applicant: NEWCOR INC

Inventor： DERDOWSKI RONALD A ,  SMITH RANDY E ,  GEIERMANN THOMAS J

IPC: B23K11/14 ,  B23K11/30 ,  B23K11/31

Abstract: A welding head for projection welding wherein the spring which biases the electrode is initially preloaded to exert a significant biasing force on the electrode to maintain it against a stop to define the normal fully extended position of the electrode. The spring of the welding head is also initially precalibrated to exert an accurate predetermined biasing force on the electrode when the electrode is depressed inwardly so as to effect compression of the spring by a predetermined distance, which latter distance is of very small magnitude. The welding head is disposed in engagement with overlapping sheets so that the electrode is engaged with the sheets in alignment with a projection thereon, and the electrode is depressed through said predetermined distance so that a uniform predetermined biasing force is applied to the electrode and hence to the projection weld area.