Title:
CONNECTING ROD PROCESSING DEVICE AND CONNECTING ROD MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/137832
Kind Code:
A1
Abstract:
According to the present invention, an NC machine tool is used which has: a first rotary cutting tool 14 that is inserted into a large end hole 23 formed in a large end section 22 of a connecting rod 20 and rotationally cuts the inner side surface of the large end section 22; a second rotary cutting tool 15 which is inserted into a small end hole 25 formed in a small end section 24 of the connecting rod 20 and rotationally cuts the inner side surface of the small end section 24; and a lower saddle 4 that supports the first rotary cutting tool 14; and an upper saddle 5 that supports the second rotary cutting tool, wherein the lower saddle 4 and the upper saddle 5 are vertically operated to make the gap between the first rotary cutting tool 14 and the second rotary cutting tool 15 variable. Thus, final processing is performed on the large end hole 23 and the small end hole 25 of the connecting rod 20.
Inventors:
YOSHIMATSU TAKAHIRO (JP)
MUTO FUMITAKA (JP)
MUTO FUMITAKA (JP)
Application Number:
PCT/JP2019/049931
Publication Date:
July 02, 2020
Filing Date:
December 19, 2019
Export Citation:
Assignee:
YASUNAGA KK (JP)
International Classes:
B23B35/00; B23B39/16; B23B39/24; B23B41/04; B23B41/12; B23Q17/00; F16C7/02; F16C9/04
Foreign References:
| CN208050976U | 2018-11-06 | |||
| JPH04294914A | 1992-10-19 | |||
| JPH0819910A | 1996-01-23 | |||
| JP2017187088A | 2017-10-12 | |||
| JPH07328885A | 1995-12-19 | |||
| JPS62148108A | 1987-07-02 |
Attorney, Agent or Firm:
NAGATO, Kanji (JP)
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