Numerical control apparatus and production system

A production system, comprising:

• a movement data calculating apparatus;
• and
• a numerical control apparatus, wherein
• the movement data calculating apparatus includes:
• a compression processing unit that performs a compression processing that replaces a continuous plurality of pre-compression command paths with one post-compression command path which is one line segment connecting both end points of the continuous plurality of pre-compression command paths;
• a movement-data creating unit that corrects the post-compression command path, based on path correction/operation data for the post-compression command path, to a tool movement path, and creates tool movement data used for interpolating the tool movement path;
• and
• a tool-movement-data storing unit that stores the tool movement data created by the movement-data creating unit in a tool movement data buffer,
• the numerical control apparatus includes an interpolation processing unit that creates the tool movement path based on the path correction/operation data and the post-compression command path, and interpolates, based on the tool movement data stored in the tool movement data buffer, the tool movement path obtained by correcting a pre-compression command path of the continuous plurality of pre-compression command paths, and calculates a tool position, and
• the movement data calculating apparatus stores the tool movement data in the tool movement data buffer in advance before machining.

A production system, comprising:

• a post-compression shape calculating apparatus;
• and
• a numerical control apparatus, wherein
• the post-compression shape calculating apparatus includes:
• a compression processing unit that performs a compression processing that replaces a continuous plurality of pre-compression command paths with one post-compression command path which is one line segment connecting both end points of the plurality of continuous pre-compression command paths;
• a post-compression-command-path storing unit that stores the post-compression command path in a post-compression command path buffer;
• and
• a path-correction/operation-data storing unit that stores path correction/operation data for the post-compression command path created by the compression processing unit in a path correction/operation data buffer, and the numerical control apparatus includes:
• a movement-data creating unit that corrects, based on the path correction/operation data, the post-compression command path to a tool movement path and creates tool movement data used for interpolating the tool movement path;
• and
• an interpolation processing unit that interpolates, based on the tool movement data created by the movement-data creating unit, the tool movement path obtained by interpolating a pre-compression command path of the continuous plurality of pre-compression command paths,
• the post-compression shape calculating apparatus stores the post-compression command path and the path correction/operation data respectively in the post-compression command path buffer and the path correction/operation data buffer in advance before machining, and
• the numerical control apparatus creates the tool movement path based on the path correction/operation data stored in the path correction/operation data buffer and the post-compression command path stored in the post-compression command path buffer, and interpolates, based on the tool movement data, the tool movement path obtained by correcting the pre-compression command path of the continuous plurality of pre-compression command paths, and calculates a tool position.