Title:
OPPOSITELY DRILLING-TYPE DRILLING MACHINE FOR RAPIDLY DRILLING THROUGH HOLE ON WORKPIECE
Document Type and Number:
WIPO Patent Application WO/2018/141135
Kind Code:
A1
Abstract:
An oppositely drilling-type drilling machine for rapidly drilling a through hole on a workpiece, comprising a base (1) and a drill driving component mounted on the base. The drilling machine also comprises a first drill bit (2) and a second drill bit (3). A first thread of the first drill bit is a right-handed thread. A second thread of the second drill bit is a left-handed thread. The dill driving component comprises a first motor speed reducer (4), a second motor speed reducer (7), a first sliding block (5), a second sliding block (6), and a tension spring (8). The present drilling machine significantly increases the efficiency of drilling the through hole on the workpiece, is convenient to install, and is capable of autonomously providing the pressure for drilling.
Inventors:
LIU RONG (CN)
GONG JIANBING (CN)
GONG JIANBING (CN)
Application Number:
PCT/CN2017/082130
Publication Date:
August 09, 2018
Filing Date:
April 27, 2017
Export Citation:
Assignee:
NANTONG YONGDA PIPE IND CO LTD (CN)
International Classes:
B23B39/22; B23B47/18
Foreign References:
| CN206464571U | 2017-09-05 | |||
| CN204724888U | 2015-10-28 | |||
| CN203470955U | 2014-03-12 | |||
| JPH11129108A | 1999-05-18 | |||
| CN2928327Y | 2007-08-01 | |||
| CN203109288U | 2013-08-07 | |||
| CN205869514U | 2017-01-11 |
Attorney, Agent or Firm:
JIANGSU SHUCHENG LAW FIRM. (CN)
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