Punching machine

The invention discloses a punching machine. The punching machine comprises a rack, a motor, a crankshaft, a first connecting rod and a punch pin assembly. The motor is fixed to the rack. The motor drives the crankshaft to rotate. The punch pin assembly is connected with the crankshaft through the fi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIN BAOQIN, LIN BAOLIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PRESSES PRESSES IN GENERAL PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The invention discloses a punching machine. The punching machine comprises a rack, a motor, a crankshaft, a first connecting rod and a punch pin assembly. The motor is fixed to the rack. The motor drives the crankshaft to rotate. The punch pin assembly is connected with the crankshaft through the first connecting rod. The first connecting rod is coaxially connected with a second connecting rod anda third connecting rod. The end, far away from the first connecting rod, of the second connecting rod is eccentrically connected with the crankshaft. The end, far away from the first connecting rod,of the third connecting rod is adjustably connected to the rack. According to the punching machine, the second connecting rod and the third connecting rod are additionally arranged on the structure ofan existing punching machine; the second connecting rod, the third connecting rod and the first connecting rod are coaxially connected; the effective rotating radius of the second connecting rod relative to the center line of