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A high-temperature progressive torsion forming device and method for fan blades

A fan blade and high temperature technology, applied in the field of metal torsion processing equipment, can solve the problems of increasing the cost of tooling, and achieve the effects of improving production efficiency, easy automation, and realizing automation

Active Publication Date: 2022-04-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for blades with a longer blade body, this method requires more torsion components to provide torsion forming, which increases the cost of tooling

Method used

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  • A high-temperature progressive torsion forming device and method for fan blades
  • A high-temperature progressive torsion forming device and method for fan blades
  • A high-temperature progressive torsion forming device and method for fan blades

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Embodiment Construction

[0037] In order to clearly illustrate the technical characteristics of this patent, the following describes this patent in detail through specific implementation methods and in conjunction with the accompanying drawings.

[0038] The present invention as Figure 1-5 As shown, the high-temperature progressive torsion forming device includes a machine tool 18, an upper torsion assembly, a lower torsion assembly, and a bottom torsion assembly; a heating mechanism is arranged in the machine tool 18, and the heating mechanism can be formed by a resistance wire, an induction coil or a heating rod and other devices satisfying the heating temperature and heating space; the middle part of the machine tool 18 is provided with a cavity for forming the blade 1, and at least one vertically arranged slide rail 17 is fixedly connected in the cavity, and the machine tool 18 The bottom is provided with a base 16 connected therewith;

[0039] The bottom torsion assembly includes a movable chuc...

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Abstract

The invention discloses a high-temperature progressive torsion forming device and method for fan blades, and relates to the field of metal torsion processing equipment. The forming device includes a machine tool, an upper torsion assembly, a lower torsion assembly and a bottom torsion assembly; the machine tool contains a heating mechanism, and a cavity for forming blades is opened in the middle of the machine tool; the torsion assemblies can move independently. The invention also provides a forming method using the device, by independently controlling the movement of each torsion component, the blade is gradually twisted and formed, and the pre-deformation and final forming are carried out simultaneously, which effectively improves the quality of the blade and shortens the time of the finishing process, thereby improving the blade quality. Forming efficiency, reduce production costs.

Description

technical field [0001] The invention relates to the field of metal torsion processing equipment. Background technique [0002] In order to maximize the conversion of wind energy into kinetic energy, the blade body of the fan blade often needs to be twisted at a certain angle. The current common blade torsion forming process is to fix the tenon of the blade and use a torsion clamp to clamp the blade tip for torsional deformation. The blade after torsion forming only has a preliminary transitional shape, and generally needs to be further shaped by molding. The production efficiency of this process is low, and the mold cavity size needs to be reasonably designed, and the cost is high. [0003] There are many forming equipments in the prior art, representative ones are as follows: [0004] A Chinese invention patent titled "A hollow blade push-bending forming process" and application number "201310508213.0" announced on September 9, 2015 proposed a fan blade push-bending form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D11/14B21D37/16B21D53/78
CPCB21D11/14B21D37/16B21D53/78
Inventor 武永范荣磊陈明和谢兰生
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS