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US 6,561,869 B2Granted
Gear grinding machine and gear grinding method
AssigneeDenso Corporation
InventorsMasahiro Asano, Katsumi Nagasaka, Toshiya Hayashi, Hisatoshi Kojima
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AssigneeDenso Corporation
InventorsMasahiro Asano, Katsumi Nagasaka, Toshiya Hayashi, Hisatoshi Kojima
Estimating the term…
A gear grinding machine and a gear grinding method, in which a gear-shaped grinding stone is caused to engage a gear-like workpiece and one of the gear-shaped grinding stone and the gear-like workpiece is reciprocated relatively to the other in axial direction thereby to grind the tooth flanks of the workpiece, are disclosed. The rotational resistance is applied by a brake unit to the rotationally driven side. The grinding resistance and the rotational resistance interfering with the relative reciprocal motion are detected by torque sensors and input to a control unit, the average value of each of the signals is compared with a reference value by an arithmetic unit and, in the case where there is a difference between the average value and the reference value, the rotational resistance is changed by activating the brake unit. Thus, a high machining accuracy can be maintained even when the sharpness of the grinding stone is reduced.
An internal tooth grinding machine for grinding the tooth flanks of the internal teeth of a workpiece having a circular outer periphery and a gear-shaped inner periphery in such a manner that the workpiece is caused to engage with a grinding stone having external teeth formed on the outer periphery thereof, and one of said grinding stone and said workpiece is rotated with the other run free, while at the same time reciprocating one of said grinding stone and said workpiece relative to the other in an axial direction, said internal tooth grinding machine comprising:
A gear grinding machine for grinding the tooth flanks of internal teeth of a gear-like object to be machined having a circular outer periphery and a gear shaped inner periphery or shaping a gear-shaped grinding stone having external teeth formed on the outer periphery thereof in such a manner that said gear-like object or a gear-shaped grinding stone shaping member, as the case may be, is caused to engage the gear-shaped grinding stone, and one of said grinding stone and said gear-like object or said gear-shaped grinding stone shaping member as the case may be is rotated with the other run free, while at the same time reciprocating said gear-shaped grinding stone along the rotational axis thereof, said gear grinding machine comprising:
A gear grinding machine for grinding the tooth flanks of internal teeth of a gear-like object to be machined having a circular outer periphery and a gear-shaped inner periphery or shaping a gear-shaped grinding stone having external teeth formed on the outer periphery thereof in such a manner that said gear-like object or a gear-shaped grinding stone shaping member, as the case may be, is caused to engage the gear-shaped grinding stone, and one of said grinding stone and said gear-like object or said gear-shaped grinding stone shaping member, as the case may be, is rotated with the other run free, while at the same time reciprocating said gear-shaped grinding stone along the rotational axis thereof, said gear grinding machine comprising:
A gear grinding machine for grinding tooth flanks of internal teeth of a gear-like object to be machined having a circular outer periphery and a gear-shaped inner periphery or shaping a gear-shaped grinding stone having external teeth formed on the outer periphery thereof in such a manner that said gear-like object or a gear-shaped grinding stone shaping member, as the case may be, is caused to engage the gear-shaped grinding stone, and one of said grinding stone and said gear-like object or said gear-shaped grinding stone shaping member, as the case may be, is rotated with the other run free, while at the same time reciprocating said gear-shaped grinding stone along the rotational axis thereof, said gear grinding machine comprising:
A method for grinding the tooth flanks of a gear-like object to be machined or shaping a gear-shaped grinding stone in such a manner that said gear-shaped grinding stone is caused to engage said gear-like object or said gear-shaped grinding stone shaping member, and one of said gear-shaped grinding stone and said gear-like object or a gear-shaped grinding stone shaping member, as the case may be, is rotated with the other run free, while at the same time reciprocating one of said gear shaped grinding stone and said gear-like object or said gear-shaped grindings stone shaping member relative to the other along the axial direction, said method comprising the steps of:
A method for grinding the tooth flanks of a gear-like object to be machined or shaping a gear-shaped grinding stone in such a manner that said gear-shaped grinding stone is caused to engage said gear-like object or a gear-shaped grinding stone shaping member, and one of said gear-shaped grinding stone and said gear-like object or said gear-shaped grinding stone shaping member, as the case may be, is rotated with the other run free, while at the same time reciprocating one of said gear shaped grinding stone and said gear-like object or said gear-shaped grindings stone shaping member relative to the other along the axial direction, said method comprising the steps of:
A method for grinding the tooth flanks of a gear-like object to be machined or shaping a gear-shaped grinding stone in such a manner that said gear-shaped grinding stone is caused to engage said gear-like object or said gear-shaped grinding stone shaping member, and one of said gear-shaped grinding stone and said gear-like object or a gear-shaped grinding stone shaping member, as the case may be, is rotated with the other run free, while at the same time reciprocating one of said gear shaped grinding stone and said gear-like object or said gear-shaped grinding stone shaping member relative to the other along the axial direction, said method comprising the steps of:
Dependencies are inferred from the claim text.