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Patent Searching and Data


Title:
PROCESSING APPARATUS AND PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2012/036062
Kind Code:
A1
Abstract:
Provided are a processing apparatus and a processing method that are suitable for use in roller crowning or crowning super-finishing, reduce processing time, are suitable for use in mass production, and can be used for small curvature radius crowning and logarithmic curve-shaped crowning. In the processing apparatus, two feed drums (1, 2) which have continuous spiral guide screw surfaces (4, 4) on the outer peripheries thereof and are rotated about center shafts (L1, L2) are disposed parallel to each other. A roller (W) is brought into contact with and rolled on the mutually opposing guide screw surfaces (4, 4) of the feed drums (1, 2), and the roller (W) passes between both feed drums (1, 2) due to rotation. The processing apparatus is provided with a grindstone (3) for processing a crowning section of the roller (W) that passes between the feed drums (1, 2). Each of the guide screw surfaces (4) of the feed drums (1, 2) is axially divided into two division screw surface sections (4a, 4b) so as to support the outer peripheral surface of the roller (W) at one position at the front and one position at the rear of said roller (W).

Inventors:
FUJIMOTO SATOSHI (JP)
SUGITATSU SATOSHI (JP)
KITAI MASASHI (JP)
Application Number:
PCT/JP2011/070458
Publication Date:
March 22, 2012
Filing Date:
September 08, 2011
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
FUJIMOTO SATOSHI (JP)
SUGITATSU SATOSHI (JP)
KITAI MASASHI (JP)
International Classes:
B24B5/24; B24B5/313; B24B9/00; F16C33/34
Foreign References:
JPS56121562U1981-09-16
JP2010030003A2010-02-12
JP2003340692A2003-12-02
JP2004322307A2004-11-18
JPH07100743A1995-04-18
JPH07290347A1995-11-07
Other References:
See also references of EP 2617521A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Download PDF:
Claims: