Title:
METHOD FOR GRINDING GEAR AND GEAR GRINDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/105733
Kind Code:
A1
Abstract:
This method for grinding a gear comprises a grinding step (Sb) for grinding a tooth flank of a gear (Gb1) by: making an axial intersection angle between a rotational axis (B2) of a workpiece (W2) and a rotational axis (C) of a thread-shaped grinding wheel (T) a combined axial intersection angle (θ2) obtained by combining a reference axial intersection angle (θ1) with a corrected axial intersection angle (Δθ); rotating the thread-shaped grinding wheel (T) and the workpiece (W2) in a synchronized manner; and relatively moving the thread-shaped grinding wheel (T) in a direction parallel to the rotational axis (B2) of the workpiece (W2). The reference axial intersection angle (θ1) is an axial intersection angle determined on the basis of a torsion angle (ϕw) on a reference circle of the gear (Gb1) and a torsion angle (ϕt) on a reference circle of the thread-shaped grinding wheel (T). The corrected axial intersection angle (Δθ) is an axial intersection angle for forming a grinding mark (Gr_W2), which is formed on the tooth flank of the gear (Gb1) by the thread-shaped grinding wheel (T), in a direction inclined at a predetermined angle (Σ) with respect to a tooth trace direction (D_Tr).
Inventors:
YOSHINAGA KATSUHITO (JP)
YOSHIDA HIROAKI (JP)
YOSHIDA HIROAKI (JP)
Application Number:
PCT/JP2021/045442
Publication Date:
June 15, 2023
Filing Date:
December 10, 2021
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
B23F19/00
Foreign References:
| US6481307B1 | 2002-11-19 | |||
| JP2015199193A | 2015-11-12 | |||
| JPS4888588A | 1973-11-20 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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