Cutting – Means to drive or to guide tool – Means to change datum plane of tool or tool presser stroke
Patent
1989-12-13
1991-06-04
Phan, Hien H.
Cutting
Means to drive or to guide tool
Means to change datum plane of tool or tool presser stroke
83686, 83700, B26F 114
Patent
active
050204076
ABSTRACT:
A form tool built to be used in a single station of a turret press machine for the sheet metal industry that comprises a punch body rigidly attached to an adjustable form tool head. The adjustable form tool head is quickly adjustable for different forming operations and for different material thickness. The depth of the forming or shaping operation is determined by the length of the punch head. This length is adjusted by lifting a spring loaded outer collar that is keyed to a hardened threaded punch driver. The length is increased or decreased by rotating the punch driver in a clockwise or counter-clockwise direction. The adjustment is made in small increments and permanently locked when the spring loaded collar is released and seated on two locking pins located on the punch head base.
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patent: 3926082 (1975-12-01), von Langendorff
patent: 3935771 (1976-02-01), Cady, Jr.
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patent: 4144785 (1979-03-01), von Langendorff
patent: 4375774 (1983-03-01), Wilson et al.
patent: 4440052 (1984-04-01), Weisbeck
patent: 4457196 (1984-07-01), Cady
patent: 4692073 (1987-09-01), Martindell
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