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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING AND DEVICE FOR MANUFACTURING ARC SHAPED COIL SPRING
Document Type and Number:
WIPO Patent Application WO/2017/204074
Kind Code:
A1
Abstract:
[Problem] The present invention focuses on a servo press that can operate at high speed and high precision by numerical control in a method for manufacturing an arc shaped coil spring and provides a manufacturing method and a manufacturing device that can assure freedom in curvature for an arc shaped coil spring,. [Solution] The manufacturing method comprise a clamping step for affixing a straight cylindrical coil spring, an end part detection step for detecting an end part, a rotational angle positioning step, a pitch feed step, a pressing member striking step, and a striking direction conversion step. The manufacturing method and manufacturing device are a means for forming the coil spring having a curvature from the straight cylindrical coil spring by continuously repeating an operation of pushing the pressing member between pitches from above.

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Inventors:
SUGITA, Takeshi (2905-10, Shimokoyama Shimotsuke-Cit, Tochigi 02, 〒3290502, JP)
Application Number:
JP2017/018639
Publication Date:
November 30, 2017
Filing Date:
May 18, 2017
Export Citation:
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Assignee:
SYSTEM-TECHNICA CO. LTD. (2905-10, Shimokoyama Shimotsuke-Cit, Tochigi 02, 〒3290502, JP)
International Classes:
B21F35/02; B21F35/00; F16F1/06
Attorney, Agent or Firm:
KAMIYOSHIHARA, Hiroshi (8-10-106, Oozo 1-chome Utusnomiya-Cit, Tochigi 14, 〒3200014, JP)
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