System and method for maintenance and repair of CNC machines

A method of monitoring a CNC machine with a controller, comprising the steps of:

• executing a machine program by a processing device;
• decoding the machine program into a distance-data and a running-time data for directing a cutting tool to travel along an axis of the CNC machine;
• accumulating the distance-data in a distance table;
• and
• accumulating the running-time data in a time table.

A controller of a CNC machine, comprising:

• a processing device, a storage device, an input device, a first input/output device and a second input/output device being connected together through a communication system;
• a distance table and a time table being stored in the storage device;
• a transducer being connected to a motor of the CNC machine and the first input/output device;
• the transducer inputting rotation data of the motor to the controller upon a motor-run;
• the processing device calculates a distance data and a running-time data based on at least one characteristic of a transmission and the rotation data;
• wherein the distance table and the time table correspondingly accumulate the distance-data and the running-time data.

A method of monitoring a CNC machine, comprising the steps of:

• collecting rotation data of a motor of the CNC machine;
• calculating a distance data and a time data based on the rotation data and at least one characteristic of a transmission;
• accumulating the distance-data in a distance table;
• and
• accumulating the running-time data in a time table.

A controller of a CNC machine, comprising:

• a processing device, a storage device, an input device, a first input/output device and a second input/output device being connected together through a communication system;
• a machine program, a first distance table, a second distance table, a first time table and a second time table being stored in the storage device;
• the processing device upon executing the machine program decodes the machine program into program distance data and program running-time data for directing a cutting tool to travel along an axis of the CNC machine;
• the first distance table and the first time table correspondingly accumulate the program distance-data and the program running-time data;
• a transducer being connected to a motor of the CNC machine and the first input/output device;
• the transducer inputting rotation data of the motor to the controller upon a motor-run;
• the processing device calculates a machine distance data and a machine running-time data based on the rotation data and at least one characteristic of a transmission;
• the second distance table and the second time table correspondingly accumulate the distance data and the running-time data;
• wherein the processing device compares a content of the first distance table with a content of the second distance table, and compares a content of the first running-time table with a content of the second running-time table.

A method of monitoring a CNC machine, comprising the steps of:

• executing a machine program by a processing device;
• decoding the machine program into a program distance data and a program running-time data for directing a cutting tool to travel along an axis of the CNC machine;
• accumulating the program distance data in a first distance table;
• accumulating the program running-time data in a first time table;
• collecting rotation data from a CNC machine motor;
• calculating a machine distance data and a machine time data based on the rotation data and at least one characteristic of a transmission;
• accumulating the machine distance data in a second distance table;
• accumulating the machine running-time data in a second time table;
• and
• comparing a content of the first distance table with a content of the second distance table, and comparing a content of the first time table with a content of the second time table.