| The flying side and Gate & Riser has been one of the important factors affecting the quality of die casting products, the cleanup work requires not only fast, keep up with the casting production rhythm, but also need to cut off the flying side and riser accurately and meet the accuracy requirements. In order to realize the automation removal of the flying side and Gate & Riser of die castings, this paper put forward to design a robot based removal system of the flying side and Gate & Riser of die castings:at the end of the robot, the electric spindle is installed, and the end of the spindle is mounted with milling cutter, and the relative movement of the tool cutting edge and the surface of the workpiece is realized to clean up the flying side of the die casting products.The larger cutting force generated during the cutting process may cause the vibration of the robot, then the system will not remove the flying side and Gate & Riser of die castings accurately. Firstly, the cutting force is analyzed, and the influence of cutting parameters on cutting force is analyzed by means of process parameters test. It provides reference for choosing the optimum cutting parameters.Under the premise of knowing the cutting force, the system is built from scratch, include the integration of the hardware and software parts of the system. In the application of robot off-line programming, there is a problem of deviation between the robot simulation model and the peripheral equipment and the actual robot system. To solve this problem, the calibration of the robot tool and workpiece coordinate system is completed by two methods:cable communication probe and laser tracker, and the calibration principle and process is introduced in detail.Finally, the actual operation effect of the whole system is verified by experiments. The results show that the cutting parameters and machining accuracy of this system have been basically achieved the expected design requirements. |
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