Danly Iem, LLC

Alexander B Leibman

Victor L Chun

Michael Hajjar

Frank Madej

Brian Lee Taylor

A long travel, varying spring rate combination spring includes two differing rate springs connected end-to-end in such a way that the lower rate spring is compressed until positive engagement of a plunger with an intermediate flange member occurs with the higher rate spring thereafter compressed. Each spring may be assembled separately and connected together with a coupling to create a combination spring, allowing various springs to be combined to meet the requirements of a particular application.

Long travel, high force combination spring

A servo motor in die tapping unit provides built in shock protection for the motor by fixing a shock plate to the servo motor and floatingly mounting the shock plate to a base structure attachable to a stripper plate in a press. Sets of opposing springs allow movement of the shock plate relative the base plate to relieve shock loads when the press is operated, the shock plate guided on dowel pins fixed to the base structure. The shock plate, and tapping unit and base structure form a self contained assembly for mounting together in the press.

Servo tapping unit with built in shock protection

A servo motor driven tapping unit for in die installation has a tap holder pitch adapter assembly mounted for removal while the unit is in the die to facilitate tap and pitch adapter replacement. In one embodiment, the tap holder pitch adapter assembly extends transversely to the servo motor axis, and is offset in another embodiment.

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Strongsville, OH, United States of America

Alexander B Leibman