NC Program Conversion Processing Method and Conversion Use Computer

A computer product comprising a non-transitory computer readable medium having stored thereon program code that, when executed on a processor, a microcontroller or a programmable hardware component, converts a pre-correction NC program and generates a post-correction NC program by carrying out the acts of:

• when the pre-correction NC program including a plurality of blocks is executed by a work machine, identifying contactless portion tool paths, which are paths on which a tool of the work machine does not contact with a workpiece;
• identifying contactless blocks only having a path which is the contactless portion tool path;
• determining the tool route correction quantity in the tool radial direction, in a work process of the workpiece according to following blocks, the following blocks are one or more blocks following the contactless blocks;
• and
• creating correction blocks including descriptions for correcting the tool route by the tool route correction quantity before the following blocks.

A computer product comprising a non-transitory computer readable medium having stored thereon program code that, when executed on a processor, a microcontroller or a programmable hardware component, converts a pre-correction NC program and generates a post-correction NC program by carrying out the acts of:

• when the pre-correction NC program including a plurality of blocks is executed by a work machine, identifying contactless portion tool paths, which are paths on which a tool of the work machine does not contact with a workpiece;
• when the contactless portion tool path is a part of a path corresponding to a first block, generating a divided contactless block corresponding to a path being at least a part of the contactless portion tool path, and generating one or more divided blocks corresponding to paths other than the path of the divided contactless block of the first block;
• converting the first block into the divided contactless block and the divided block;
• determining a tool route correction quantity in the tool radial direction in a work process of the workpiece according to following blocks, the following blocks are one or more blocks following the divided contactless block;
• and
• creating correction blocks including descriptions for correcting the tool route by the tool route correction quantity before the following blocks.

A computer product comprising a non-transitory computer readable medium having stored thereon program code that, when executed on a processor, a microcontroller or a programmable hardware component, converts a pre-correction NC program and generates a post-correction NC program by carrying out the acts of:

• wherein the processor:
• when the pre-correction NC program including a plurality of blocks is executed by a work machine, identifies contactless portion tool paths, which are paths on which a tool of the work machine does not contact with a workpiece,
• identifies contactless blocks only having a path which is the contactless portion tool path,
• based on a spindle rigidity of the work machine and a rigidity of the tool, determines the tool route correction quantity in the tool radial direction in a work process of the workpiece according to a following blocks, the following blocks being one or more blocks following the contactless blocks, and
• creates correction blocks including descriptions for correcting the tool route by the tool route correction quantity before the following blocks.

A computer product comprising a non-transitory computer readable medium having stored thereon program code that, when executed on a processor, a microcontroller or a programmable hardware component, converts a pre-correction NC program and generates a post-correction NC program by carrying out the acts of:

• wherein the processor:
• when the pre-correction NC program including a plurality of blocks is executed by a work machine, identifies contactless portion tool paths, which are paths on which a tool of the work machine does not contact with a workpiece,
• when the contactless portion tool path is a part of a path corresponding to a first block, generates a divided contactless block corresponding to a path being at least a part of the contactless portion tool path, and generating one or more divided blocks corresponding to paths other than the path of the divided contactless block of the first block;
• converts the first block into the divided contactless block and the divided block,
• based on a spindle rigidity of the work machine and a rigidity of the tool, determines a tool route correction quantity in the tool radial direction in a work process of the workpiece according to a following blocks, the following blocks being one or more blocks following the divided contactless blocks, and
• creates correction blocks including descriptions for correcting the tool route by the tool route correction quantity before the following blocks.