Title:
SPINNING FORMING APPARATUS AND METHOD FOR ALUMINUM INNER CONTAINER OF HIGH-PRESSURE HYDROGEN CYLINDER
Document Type and Number:
WIPO Patent Application WO/2023/029719
Kind Code:
A1
Abstract:
A spinning forming apparatus for an aluminum inner container (1) of a high-pressure hydrogen cylinder, provided with an industrial control host, a main shaft driven to rotate, a clamping jaw unit controlled to open and close and connected to the main shaft to synchronously rotate, and a forming unit acting on a pipe blank, wherein the forming unit consists of a swing arm and a spinning roller (3) connected to an end portion of the swing arm, and the spinning roller is driven to rotate downwards along the rotating center of the swing arm to press against an outer wall of the pipe blank (11). The forming unit is provided with a feeding servo hydraulic cylinder connected to the industrial control host; the rotating center of the swing arm is driven by the feeding servo hydraulic cylinder to move in a Z-axis direction parallel to the main shaft; the contour shape of the spinning roller close to the pipe blank is set to be an obtuse-angle-shaped folded edge (31); the folded edge is configured to be a round corner (32) which is correspondingly matched with a sealing head (15) and transitions towards a cylinder opening; and the rotating speed of the main shaft, the swing angle of the spinning roller, and the output of the feeding servo hydraulic cylinder can be adjusted along with CNC programming of the industrial control host. A spinning forming method for an aluminum inner container of a high-pressure hydrogen cylinder is implemented by using the spinning forming apparatus for the aluminum inner container of the high-pressure hydrogen cylinder, an aluminum alloy inner container having the diameter greater than 412 mm is manufactured, and the sealing head forming and surface characteristics are excellent, such that winding is convenient, carbon fiber costs are saved, and the cylinder volume is increased.
More Like This:
| JP2017170483 | INCREMENTAL MOLDING METHOD AND MOLDING TOOL |
| JP2002102944 | INCREMENTAL STRETCH FORMING METHOD |
| WO/2011/149227 | MANUFACTURING APPARATUS USED FOR SPINNING PIPE |
Inventors:
WANG JUN (CN)
WANG YANHUI (CN)
MI KUAN (CN)
WANG YANHUI (CN)
MI KUAN (CN)
Application Number:
PCT/CN2022/103246
Publication Date:
March 09, 2023
Filing Date:
July 01, 2022
Export Citation:
Assignee:
SINOMA SCIENCE& TECH SUZHOU CO LTD (CN)
International Classes:
B21D22/18; B21D51/24
Attorney, Agent or Firm:
BEIJING FINELAND IP FIRM (CN)
Download PDF:
Previous Patent: LIGHT SOURCE AND LASER PROJECTION APPARATUS
Next Patent: DIAPHRAGM OF SOUND PRODUCTION DEVICE, AND SOUND PRODUCTION DEVICE THEREOF
Next Patent: DIAPHRAGM OF SOUND PRODUCTION DEVICE, AND SOUND PRODUCTION DEVICE THEREOF