Processing machine, control device for processing machine and control method for processing machine

Abstract

A processing machine includes a tool configured to perform machine processing on a workpiece, and a depth camera configured to be installed such that the workpiece lies within an imaging range and to capture a depth of a subject. A position measurement unit calculates a three-dimensional position of a surface of the workpiece based on a depth image captured by the depth camera. A position matching unit, based on three-dimensional data representing a target shape of the workpiece and a three-dimensional position of the workpiece, calculates a three-dimensional position of the target shape in a case in which the workpiece and the target shape are superimposed. A cutting amount determination unit determines a cutting amount at each of a plurality of points on the surface of the workpiece based on a difference in a line-of-sight direction between the three-dimensional position of the surface of the workpiece and a three-dimensional position of a surface of the target shape in a case in which the workpiece is viewed from a predetermined viewpoint. A tool control unit moves the tool based on the determined cutting amount.