Title:
INTERNAL AND EXTERNAL CLAMPING METHOD AND DEVICE OF THIN-WALL TUBULAR PART DURING ROTARY PROCESSING
Document Type and Number:
WIPO Patent Application WO/2019/134425
Kind Code:
A1
Abstract:
An internal and external clamping method and device of a thin-wall tubular part during rotary processing. A plurality of support blocks (18) of the device are spaced to form an annular structure around a flange bush (22); the middle part of each support block is provided with a through hole; a support claw is provided between every two support blocks, and the side surface of the support claw is provided with the through hole; a rotary shaft (19) penetrates through the through holes in the support claws and the support blocks; the plurality of support claws is spaced to form a support claw ring (14) having the annular structure, and each support claw is formed by connecting the front end, the rear end, and the bottom; the support claw ring is provided in a clamping cylinder (12), and the thin-wall tubular part is provided between the outside surface of the support claw ring and the inside surface of the clamping cylinder. The clamping cylinder is contracted under the combined action of a wedge-shaped sleeve (8) and a jacket (20), and is used for pressing the outer wall of the part, so that the external clamping of the thin-wall tubular part is realized; the support claw ring is turned over and expanded around the rotary shaft between the two support blocks separately, so that the internal clamping of the thin-wall tubular part is realized.
Inventors:
XIA QINXIANG (CN)
LONG JINCHUAN (CN)
CHENG XIUQUAN (CN)
XIONG YINGCHAO (CN)
LONG JINCHUAN (CN)
CHENG XIUQUAN (CN)
XIONG YINGCHAO (CN)
Application Number:
PCT/CN2018/111935
Publication Date:
July 11, 2019
Filing Date:
October 25, 2018
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
B23B31/40
Foreign References:
| CN107983981A | 2018-05-04 | |||
| CN207823987U | 2018-09-07 | |||
| CN105179691A | 2015-12-23 | |||
| CN104607681A | 2015-05-13 | |||
| US4647051A | 1987-03-03 |
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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