Title:
THREADED SHAFT GRINDING METHOD, AND THREADED SHAFT GRINDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/060036
Kind Code:
A1
Abstract:
This threaded shaft grinding method performs grinding by moving the threaded shaft (10), contacting a grinding wheel head (5), by a movement amount in the axial direction while rotating the threaded shaft (10). In order to form n thread grooves, a first thread groove is formed in a first step for detecting the amount of expansion or contraction of the threaded shaft (10) and correcting on this basis the movement amount of the threaded shaft (10), a second step for correcting the grinding start position on the basis of the amount of expansion or contraction detected in the first step, and a third step for grinding after moving the threaded shaft (10) by the movement amount corrected in the first step, and the second and subsequent thread grooves are formed in a fourth step for rotating the threaded shaft (10) by exactly 360/n degrees and changing the grinding start position, and steps 1 to 3. Thus, two or more thread grooves can be formed with high accuracy.
Inventors:
IKEDA HIROYUKI (JP)
FUJISHIRO HIROAKI (JP)
KUWANO TAKAFUMI (JP)
MATSUO SHINGO (JP)
FUJISHIRO HIROAKI (JP)
KUWANO TAKAFUMI (JP)
MATSUO SHINGO (JP)
Application Number:
PCT/JP2015/078455
Publication Date:
April 21, 2016
Filing Date:
October 07, 2015
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
B23G1/38; B23Q15/18; B24B49/02
Domestic Patent References:
| WO2014129314A1 | 2014-08-28 |
Foreign References:
| JP3700255B2 | 2005-09-28 | |||
| JPS60228019A | 1985-11-13 |
Attorney, Agent or Firm:
INOUE, Yoshio et al. (JP)
Yoshio Inoue (JP)
Yoshio Inoue (JP)
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