PUNCH TOOL AND METHOD OF SECURING A PUNCH TIP WITH A PUNCH BODY

• Main Authors: LEE, Brian J, MOREHEAD, John H, JOHNSTON, Kevin A, TIMP, Richard L
• Format: Patent
• Language: English; French; German
• Published: 06.06.2018
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

A punch tool (10) comprising: a punch body (14) having a sidewall (18) that defines a central cavity (38), the central cavity extending along a longitudinal extent of the punch body; a punch tip (16) comprising a body having a first end (17a) configured to be alternately secured or released with respect to the punch body (14) and a second end (17b) comprising a working end of the punch tip, the first end including a hub (16a); a carrier body (36) seated within the punch body central cavity (38) and selectively movable between raised and lowered positions within the cavity; and a plurality of wedge members (50) movable between locked and unlocked positions within the punch body central cavity (38) and respectively corresponding to the raised and lowered positions of the carrier body (36), said locked position of the wedge members corresponding to a locking configuration of the punch body (14) with respect to the punch tip hub (16a); wherein each of the plurality of wedge members (50) includes a surface (50dd) having a shape configured to mate with a corresponding surface (16c) of the punch tip hub (16a), the surfaces of the wedge members and the punch tip hub representing the only contacting surfaces between the wedge members and the punch tip hub in securing the punch tip (16) to the punch body (14).