Title:
The spinning machine used for a plastic working method and it
Document Type and Number:
Japanese Patent JP6061312
Kind Code:
B2
Abstract:
A spinning machine includes: a main shaft which includes a chuck holding a cylindrical material having a bottom and a regulation member; a mandrel which is inserted inside from an opening side end portion of the material; and a press roller which presses the opening side end portion of the material. The spinning machine molds a circumferential groove portion on the opening side end portion so that an inner diameter of the opening side end portion of the material is smaller than an inner diameter of a body of the material by pushing a press roller while rotating the material around the axial center of the main shaft, and at least a portion of the inserted mandrel is formed so that a gap is provided between the portion and an inner circumferential surface after the opening side end portion of the material is plastically deformed.
Inventors:
Yoshiaki Takada
Junji Kishino
Shirai Taishi
Junji Kishino
Shirai Taishi
Application Number:
JP2014545597A
Publication Date:
January 18, 2017
Filing Date:
August 29, 2013
Export Citation:
Assignee:
Nihon Spindle Manufacturing Co., Ltd.
International Classes:
B21H1/18; B21D22/16; B21D41/04
Domestic Patent References:
| JP2007090373A | ||||
| JP2003305527A | ||||
| JP53095156A |
Attorney, Agent or Firm:
Osamu Mori
Previous Patent: A projection device and a method for controlling the same
Next Patent: HIGH SPEED LARGE SIZE PNEUMATIC TIRE
Next Patent: HIGH SPEED LARGE SIZE PNEUMATIC TIRE