Machine tool and control method of machine tool
US12269111B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Feb 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/50152
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine tool and a control method for the machine tool, which determine the degree of misalignment during friction joint, are provided. The machine tool (an automatic lathe 1) includes: a first spindle 10 rotatably holding a first workpiece (a workpiece W1); a second spindle 20 arranged to face the first spindle and rotatably holding a second workpiece (a remaining workpiece W2); and a controller 40a, while rotating at least one of the first workpiece or the second workpiece, relatively moving the first spindle and the second spindle so as to get closer to each other and pushing a rear end portion of the second workpiece against a front end portion of the first workpiece to frictionally join the first and second workpieces. The controller has a misalignment amount detector detecting a misalignment amount s of the second workpiece with respect to the first workpiece during the friction joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.