Patent ID: 8457787
Filing Date: 2013-06-04
Classification: B23Q,G05B

Abstract:
1. A method for controlling movement of a machine axle in the event of contact between a machine element of the machine and an object, the machine having a slow and a fast displacement mode, the method comprising the steps of: producing with the machine axle a relative movement between the machine element and the object, detecting contact between the machine element and the object, if the machine axle is moved automatically by a control device in fast displacement mode when making contact, preventing further movement of the machine axle by checking if damage to the machine can be adequately limited when braking with the drive alone, and if damage can be adequately limited, stopping the machine axle with the drive alone, or if damage cannot be adequately limited, using an additional brake to immediately stop the machine axle, or if the machine axle is moved automatically by the control device in slow displacement mode when making contact, first identifying a collision and thereafter stopping further movement of the machine axle.