Generating mechanism for a gear grinding machine for helical gears
Abstract
Abstract IN GENERATING MECHANISM FOR A GEAR GRINDING MACHINE FOR HELICAL GEARS, ON WHICH A WORKPIECE HAVING HELICAL TEETH WHICH ARE TO BE GROUND IS MOUNTED ON A GENERATING SLIDE, A ROLLING PITCH BLOCK IS FITTED TO A WORK SPINDLE WHICH IS TO CARRY THE WORKPIECE, THE ROLLING PITCH BLOCK IS ENCIRCLED BY ROLLING PITCH TAPES, HE ENDS OF WHICH PITCH TAPTES ARE FIXED TO THE PITCH BLOCK AND TO A SECONDARY SLIDE, AND BOTH THE SECONDARY SLIDE AND THE GENERATING SLIDE ARE MOVABLE PARALLEL TO EACH OTHER AND AT RIGHT ANGLES TO THE WORKPIECE AXIS. THE ROLLING PITCH TAPES ARE PASSED ROUND RETURN IDLER GUIDDE PULLEYS, THE SAID GUIDE PULLEYS ARE MOUNTED IN A TAPE STAND WHICH IS MOVABLE PARALLEL TO THE GENERATING SLIDE AND TO THE SECONDARY SLIDE, AND THE SAID TAPE STAND IS MOVABLE FROM SIDE TO SIDE WHICH IS ANGULARLY ADJUSTABLE ACCORDING TO THE HELIX ANGLE OF THE TEETH OF THE WORKPIECE.
Inventors
- 👤 Willi Graf
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |