METHOD FOR VERIFYING OPERATIVE PARAMETERS OF A SELECTING DEVICE OF A SPRING FORMING MACHINE, AND SPRING FORMING MACHINE

摘要

The present invention refers to a method for verifying operative parameters of a selecting device (22) of a machine (100) for forming springs, configured for subdividing the springs formed by a spring forming device (1) of said spring forming machine (100) in at least one first group corresponding to springs having dimensional parameters falling into predefined tolerance values, and a second group corresponding to springs having dimensional parameters varying from said predefined tolerance values, said method comprising: - setting the spring forming device (1) so that it makes a test run of springs comprising a predetermined number (n) of faulty springs having dimensional parameters varying from said predefined tolerance values, and a predetermined number of suitable springs having dimensional parameters falling into said predefined tolerance values; - detecting the dimensional parameters of each spring formed in the forming device (1) by a measuring system (17) of the machine (100); - subdividing, by said selecting device (22), the springs formed by the forming device (1) into said at least one first and one second groups; - verifying the absence of suitable springs among the springs selected by the selecting device (22) in the second group; - comparing the number of the faulty springs selected by the selecting device (22) in the second group with said predetermined number (n) of faulty springs set for the test run. The present invention refers also to a spring forming machine (100).