Abstract: A machining simulation apparatus (1) includes a model storage (4) for storing information about machining models (11) that define mechanical elements, such as spindle heads and tables, jig models (12) that define jigs, such as chucks and holders, material models (13) that defines the shapes of workpieces, and tool models (14) that defines the shapes of tools for machining the workpieces. Each tool model comprises a machining tool model (14A) and an interference check tool model (14B). A material model is machined with the machining tool model (14A) according to an axis movement command for cutting feed so as to update the shape of the material model. Subsequently, interference of the interference check tool model with the material model, jig models, and machine models are checked for according to an axis movement command for rapid traverse.

Abstract: When causing manual movement of a moving section of a machine tool, shape data of the moving section is made to move in a movement direction that has been input manually, and it is confirmed whether there is no interference with shape data of a surrounding interfering object. If interference occurs, a position returned a specified distance from the position where interference occurs is made a stop position, the moving section is moved to this stop position, and stopped at that position.

Abstract: A machining simulation apparatus (1) includes a model storage (4) for storing information about machining models (11) that define mechanical elements, such as spindle heads and tables, jig models (12) that define jigs, such as chucks and holders, material models (13) that defines the shapes of workpieces, and tool models (14) that defines the shapes of tools for machining the workpieces. Each tool model comprises a machining tool model (14A) and an interference check tool model (14B). A material model is machined with the machining tool model (14A) according to an axis movement command for cutting feed so as to update the shape of the material model. Subsequently, interference of the interference check tool model with the material model, jig models, and machine models are checked for according to an axis movement command for rapid traverse.

Abstract: When causing manual movement of a moving section of a machine tool, shape data of the moving section is made to move in a movement direction that has been input manually, and it is confirmed whether there is no interference with shape data of a surrounding interfering object. If interference occurs, a position returned a specified distance from the position where interference occurs is made a stop position, the moving section is moved to this stop position, and stopped at that position.