WORKING MACHINE HAVING ABNORMAL LOAD DETECTING FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a working machine having a function of sharply detecting collision and the other abnormality and preventing the machine from being operated still in the abnormal state. SOLUTION: This working machine is provided with a means 22 for detecting load of a driving source 1 for driving a movable body 2. The machine tool is provided with an abnormality determining means 23 for determining to be abnormal when the load detected by the load detecting means 22 exceeds an abnormality determining level Lb. The abnormality determining means 23 sets the abnormality determining-level Lb according to the average of load in the preceding drive of the movable body 2 and load in the past drive on several times near this time.