DUAL HEADED PUNCH WITH TAPERED NECK

• Main Authors: SNEAD, SONNY, LOCKHART, ANTHONY, COLLIER, JOHN, C., JR
• Format: Patent
• Language: English; French
• Published: 26.07.2007
• Subjects: CUTTING; CUTTING-OUT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HAND CUTTING TOOLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORATING; PERFORMING OPERATIONS; PUNCHING; PUNCHING METAL; SEVERING; SEVERING BY MEANS OTHER THAN CUTTING; STAMPING-OUT; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

A tool is disclosed, for use with a punching press for punching holes in workpieces. A punch body is provided, elongated in an axial direction. A first punch head is formed on an end of the punch body, and has a first radial diameter, perpendicular to the axial direction. A second punch head has a second radial diameter, also perpendicular to the axial direction. The second punch head is substantially spaced from the first punch head. A neck is formed between the first and second punch heads, having a uniformly tapered diameter less than the first and second radial diameters. La présente invention concerne un outil à utiliser avec une presse de perforation pour réaliser des trous dans des pièces. L'outil comprend un corps de perforateur allongé en direction axiale. Une première tête de perforateur est formée sur à extrémité du corps de perforateur, et présente un premier diamètre radial, perpendiculaire à la direction axiale. Une seconde tête de perforateur présente un second diamètre radial, également perpendiculaire à la direction axiale. La seconde tête de perforateur est sensiblement espacée de la première tête de perforateur. Un col est formé entre la première et la seconde tête de perforateur, et présente un diamètre effilé de façon uniforme, inférieur au premier et au second diamètre radial.