公开(公告)号：EP0442625A2

公开(公告)日：1991-08-21

申请号：EP91300571.6

申请日：1991-01-25

Applicant: EMHART INC.

Inventor： Van Allen, Kent Edward

IPC: B23K9/20

CPC classification number: B23K9/201

Abstract: A stud welding system wherein welding is prevented unless the armature is located within an acceptable displacement window. A D.C. signal representative of armature position is generated by connecting differential amplifier across the coil and applying a constant voltage across the coil. The output of the amplifier is converted to a D.C. signal which is received by window comparator which will enable welding only when the armature is properly located.

Abstract translation: 螺柱焊接系统，其中防止焊接，除非电枢位于可接受的位移窗内。 代表电枢位置的D.C.信号是通过跨越线圈连接差分放大器并在线圈上施加恒定电压来产生的。 放大器的输出转换为由窗口比较器接收的直流信号，只有当衔铁正确定位时才能进行焊接。

公开(公告)号：EP0442625A3

公开(公告)日：1992-03-04

申请号：EP91300571.6

申请日：1991-01-25

Applicant: EMHART INC.

Inventor： Van Allen, Kent Edward

IPC: B23K9/20

CPC classification number: B23K9/201

Abstract: A stud welding system wherein welding is prevented unless the armature is located within an acceptable displacement window. A D.C. signal representative of armature position is generated by connecting differential amplifier across the coil and applying a constant voltage across the coil. The output of the amplifier is converted to a D.C. signal which is received by window comparator which will enable welding only when the armature is properly located.

公开(公告)号：EP0442625B1

公开(公告)日：1994-09-14

申请号：EP91300571.6

申请日：1991-01-25

Applicant: EMHART INC.

Inventor： Van Allen, Kent Edward

IPC: B23K9/20

CPC classification number: B23K9/201