Motoman Robot Handling and Cutting

Motoman EPL160 robot mounted on a servo track uses a custom mechanical pipe gripper with a hydraulic shear to cut the leading end off of a copper pipe extrusion and then transfers the cut-off length to a scrap tub.Copper Tube and Fittings

Robot system achieves all project goals and objectives. Robot is more than 25 seconds faster than required 70-75 second cycle time. Hydraulic shear can begin cutting as soon as lifter arms raise the tube out of the coolant tank, reducing cycle time. Robotic handling process eliminates ergonomically difficult job and improves safety, while reducing labor turnover. Cut-off position is based on extruder parameters versus on an estimate made by an operator, resulting in more consistent part quality and less waste. Robot system improves safety and process efficiency by enabling scrap tub removal by forklift versus by overhead crane.

Project Challenges

Motoman Robotics Solution

Motoman Robotics provided a custom EPL160 solution, including:

Fixtures/Tooling Details

Motoman Robotics provided a mechanical gripper with dual jaws to grasp the pipe. Linear conveyor tracking enables the gripper to grasp the pipe located in the V-shaped tank. Circular conveyor tracking allows the robot to track the pipe while it is in the lift arms. The customer provided the hydraulic shear with pneumatic slide that mounts on the robot gripper. Included are sensors for gripper open/gripper closed conditions, shear close pressure, shear open pressure, and verification that end is cut off.