Controller
AssigneeFanuc Corporation
InventorMasashi Yasuda
Life of this patent
Estimating the term…
Abstract
A controller controls a machine tool, which performs thread cutting for a workpiece, according to a machining program. The controller analyzes operating conditions of a cutting-up/cutting-in motion commanded in the machining program and inserts a cutting-up/cutting-in motion created based on the analyzed operating conditions into the thread cutting. In the insertion of the cutting-up/cutting-in motion into the thread cutting, a cycle including a cutting-in operation, a cutting-up operation for separating chips by raising the cutting tool for cutting in the radial direction of the workpiece, and an operation to cause the cutting tool to approach a start position of an immediately preceding cutting-up operation so as not to interfere with the workpiece is repeatedly performed.
Claims4
A controller configured to control a machine tool which performs thread cutting for a rotating workpiece by moving a cutting tool pressed against the workpiece, according to a machining program, the controller comprising:
- a cutting-up/cutting-in motion operating condition analysis unit configured to analyze operating conditions of a cutting-up/cutting-in motion commanded in the machining program;
- and
- a cutting-up/cutting-in motion insertion unit configured to insert a cutting-up/cutting-in motion created based on the operating conditions analyzed by the cutting-up/cutting-in motion operating condition analysis unit into the thread cutting,
- wherein the cutting-up/cutting-in motion insertion unit is configured to repeatedly perform, along a thread groove cutting direction, a cycle including mainly a cutting-in operation, a cutting-up operation which cuts chips into pieces by raising the cutting tool for cutting in the radial direction of the workpiece, and an operation to cause the cutting tool to approach a start position of an immediately preceding cutting-up operation so as not to interfere with the workpiece.
Dependencies are inferred from the claim text.