During the operation of the machine tool, all changes made can be visualized directly on the CNC screen, further minimizing operator actions. The result is that an operator can jog the robot, command the gripper, and control integrated actions with a machine tool on single-screen operation. In operation, the KRC4 integrator and mxAutomation convert the robot language into the same commands used for multiaxis machine tool functions. A single Profinet cable runs between the robot and the CNC.
mxAutomation for Sinumerik CNC was a joint development between Kuka and Siemens. Kuka created plug-in function modules for the Siemens Step 7 PLC engineering software and provided its robot knowledge to Siemens for creation of the second channel logic on the CNC. All safety functions and test functions for load/unload, brake test, gripper, robot communication and safe operation of the robot are provided through the Siemens Profinet and Profisafe playforms. ME For more information from KUKA Robotics, go to www.kukarobotics.com, or phone 586-873-3230; from
At IMTS, Siemens demonstrated how a Kuka robot was articulating parts simulating the operation on a CNC machine tool.
he new MC Series horizontal machining centers (HMC) from Heller Machine Tools (Troy, MI) feature a robust machine design that provides the structural stiffness and high torque required for making deep cuts in tough material, as well as the accuracy to finish-machine the part. “The capacity of the MC Series machines to make roughing cuts all day long yet finish-machine the same workpiece in the same fixture has a major positive impact on the cost of machine ownership in the short and long term,” said Vince Trampus, Heller vice president. The precision provided by all machine sizes in the MC range is ensured through reduced table defor- mation and high precision due to internally arranged drives. This provides high productivity and minimal axes positioning times resulting in reductions in machining times between 20 and 50% in practical application compared to competitive machines. In the MC series, there are seven different size Heller machining centers, each of which is built to provide the maximum reliability and material cutting versatility capable of rough-and-finish machining to the tightest production toler- ances over a long service life. The MC series is equally well- suited to light-metal machining and heavy-duty machining, which includes many automotive components from suspen- sion to engine blocks and heads. The versatile MC series can also be equipped with a range of optional extensions, includ- ing an out-facing slide with coupling through the center of the spindle for performing NC turning operations.