Industrial Robot Having Redundant Emergency Brake Circuit

• US 20100288067A1
• Filed: 10/29/2008
• Published: 11/18/2010
• Est. Priority Date: 12/11/2007
• Status: Active Grant

• Current Assignee: KUKA Laboratories GmbH (Midea Group Co., Ltd)
• Original Assignee: KUKA Roboter GmbH (Midea Group Co., Ltd)
• Inventors: Schwarz, Richard, Hofmann, Josef, Marx, Sonke
• Granted Patent: US 8,736,219 B2
• Time in Patent Office: Days
• US Class Current: 74/490.03
• CPC Class Codes: B25J 19/06 Safety devices
• CPC Class Codes: B25J 9/1674 characterised by safety, monitoring, diagnostic
• CPC Class Codes: H02P 3/22 by short-circuit or resistive braking
• CPC Class Codes: Y10T 74/20317 including electric motor

Abstract

The invention relates to an industrial robot having a robotic arm. The robotic arm has several axes (A1-A6) and at least one electric drive, which comprises an electric motor (7-12) and power electronics (16) actuating the electric motor (7-12) and is equipped to move the relevant axis (A1-A6). The industrial robot (1) is equipped to short-circuit the electric motor (7-12) in the event of emergency braking simultaneously by means of two independent electric current paths.

Claims

1. Industrieroboter, aufweisend einen Roboterarm, der mehrere Achsen (A1-A6) und wenigstens einen elektrischen Antrieb aufweist, der einen elektrischen Motor (7-12) und eine den elektrischen Motor (7-12) ansteuernde Leistungselektronik (16) aufweist und eingerichtet ist, die relevante Achse (A1-A6) zu bewegen, wobei der Industrieroboter (1) eingerichtet ist, den elektrischen Motor (7-12) im Rahmen einer Notbremsung gleichzeitig mittels zweier voneinander unabhangiger elektrischer Strompfade kurz zu schlieBen.

2-9. -9. (canceled)