Title:
パンチプレス及びテーパ雌ねじの形成方法
Document Type and Number:
Japanese Patent JP6877274
Kind Code:
B2
Abstract:
To sufficiently prevent the occurrence of pressing failure by suppressing a dispersion in qualities of tapered female screws Ws when a workpiece W is processed by taper tapping with a punch press 1.SOLUTION: A control device 113 controls a mold lifting mechanism 57 to lift the lower mold 5 (5A) up and down between a standby height position and a punching height position when the upper mold 3 and the lower mold 5 positioned at a processing position MP are punching upper mold 3A and the lower mold 5A. The control device 113 controls the mold lifting mechanism 57 to lift the lower mold 5 (5B) up and down between the standby height position and a taper tapping height position, higher in the top face of the lower mold 5 (5B) than a path line PL by a level corresponding to at least the lower clamping claw 43(the tip of the lower clamping claw 43) of a clamper 33 when the upper mold 3 and the lower mold 5 positioned at the processing position MP are taper-tapping upper mold 3B and the lower mold 5B.SELECTED DRAWING: Figure 4
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Inventors:
Kazuo Oshida
Application Number:
JP2017136718A
Publication Date:
May 26, 2021
Filing Date:
July 13, 2017
Export Citation:
Assignee:
Amada Co., Ltd.
International Classes:
B21D28/36; B21D43/00; B21D43/10; B23G3/00
Domestic Patent References:
| JP2010017763A | ||||
| JP2014094388A | ||||
| JP2000317556A | ||||
| JP2000051976A | ||||
| JP2003033832A | ||||
| JP2000140958A | ||||
| JP2000126831A | ||||
| JP2001232518A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu