GEAR MACHINING APPARATUS - MITSUBISHI HEAVY IND LTD

Title:

GEAR MACHINING APPARATUS

Document Type and Number:

WIPO Patent Application WO/2014/148390

Kind Code:

A1

Abstract:

Provided are a gear machining apparatus and a gear machining method with which the surface roughness, in a tooth profile evaluation range, of the surfaces of the teeth of a gear can be improved. This gear machining apparatus (1) machines shapes a gear (4) by machining a workpiece (4) with a grinding wheel, and comprises: a threaded grinding wheel (32) that shapes a gear (4) by machining a workpiece (4); and a disc-shaped dresser (36) that shapes the threaded grinding wheel (32) while rotating with the threaded grinding wheel (32) in a meshed state. A pressure angle (α) of the dresser (36) is designed to be dislocated such that a reference pitch circle diameter (PCD) of the gear (4) shaped by the threaded grinding wheel (32) is outside the tooth profile evaluation range of a tooth surface (5).

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Inventors:

YOSHIMURA HITOSHI (JP)
ARISAWA HIDEAKI (JP)

Application Number:

PCT/JP2014/056921

Publication Date:

September 25, 2014

Filing Date:

March 14, 2014

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

B23F5/04; B23F23/00; B24B53/075

Foreign References:

JP2010125571A	2010-06-10
JP2012206198A	2012-10-25
US4106361A	1978-08-15

Attorney, Agent or Firm:

TSUJII Koichi et al. (JP)
辻居 Koichi (JP)

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