Lathe Machining Work Bench Tutorial （车床加工工作台教程）.pdfVIP

Lathe Machining Work Bench Tutorial Using the lathe machining workbench is similar to the mill machining workbench. You need to have a part drawing, create a product (with NC Geometry, Fixture, Part, and Stock), change to the lathe machining workbench, setup the machine (Part Operation), add tool paths, check tool paths, and post the tool paths to G-code. Quick steps to a working process file are:  Draw your part o Align the Axes: A lathes axes are X (diameter) and Z (axial) because of this, draw your part oriented in these axes to make creating a product and process file easier. o Locate the Origin: Standard machine practices for a lathe puts the origin (part zero) on the front the part. Anytime the tool is cutting the part it is behind part zero and will be negative. To implement this in CATIA, draw your part body in the negative Z with the front on the origin. o Draw the Outline and Revolve: Draw your part in the XZ plane as an outline (make sure the longitudinal axis runs along the Z axis) and use shaft (revolve) to make it cylindrical around the Z axis. You will need the part outline for tool paths in the process. o All Axes can be Changed: If you did not draw your part in the XZ plane or in the negative Z direction you can always change it in the product or process file. You can change the part orientation in the product using mates to align the part’s axis along the Z axis and placing the origin at the front of the part. Axes can also be changed in the process by either double clicking on the Part Operation and then Reference Machining Axis button or double clicking on the Default Reference Machining Axis (found at the part origin). Click o