The bending speed of a universal bending machine must be adjustable for both the rapid traverse and feed motions. A load-depended flow control valve can be used for rapid traverse, after a given distance had been travelled, the bending operation must be carried out at a non-load depended and adjustable speed. The return stroke over the same distance must be controlled by the same valve. A flow control valve should be connected up in such a way that flow passes through it in the same direction during the feed and return stroke motions

The bending speed of a universal bending machine must be adjustable for both the rapid traverse and feed motions. A load-depended flow control valve can be used for rapid traverse, after a given distance had been travelled, the bending operation must be carried out at a non-load depended and adjustable speed. The return stroke over the same distance must be controlled by the same valve. A flow control valve should be connected up in such a way that flow passes through it in the same direction during the feed and return stroke motions

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter8: Computer Numerical Control

Section8.1: Cnc Basics

Problem 3RQ: Briefly describe a ball screw and a linear guide.

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