Spinning forming device and forming method with bionic drag-reducing surface fairing

A technology of spinning forming and fairing, which is applied to household appliances, other household appliances, hollow objects, etc., can solve the problem that the line shape is not easy to guarantee, and achieve the effect of simple and efficient processing method.

Active Publication Date: 2022-04-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pure streamlined shape has limited ability to reduce wind resistance, and the linear shape is not easy to guarantee. The outer surface of the fairing can be improved from the perspective of bionics to further reduce the air resistance encountered during exercise.

Method used

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  • Spinning forming device and forming method with bionic drag-reducing surface fairing
  • Spinning forming device and forming method with bionic drag-reducing surface fairing
  • Spinning forming device and forming method with bionic drag-reducing surface fairing

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Embodiment Construction

[0019] Referring to the accompanying drawings, the spinning forming device with a bionic drag-reducing surface fairing includes a clamp 1, a blank 2 and a roller 3, the blank 2 is a cylindrical structure, and the blank 2 is clamped It is fixed on the jig 1 and the formed part of the blank 2 is exposed outside the jig 1. The jig 1 rotates in the circumferential direction with the main shaft. The roller 3 is disc-shaped. The extended filling roller groove 4, the roller 3 is connected with the external power device, and the external power device can control the roller 3 to make the roller 3 fully squeeze the blank 2 at a certain feed speed and axial feed amount The diameter is continuously reduced and regularly arranged shark-fin-like streamlined protrusions 5 are left on the outer surface of the formed part of the blank 2 .

[0020] Furthermore, the outer arc surface C of the filling roller groove 4 is a part of a circle with a diameter of 5.8 mm, the distance B between the two ...

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Abstract

A spinning forming device with a bionic drag-reducing surface fairing, including a blank, the blank is fixed on a jig and the forming part of the blank is exposed outside the jig, the jig rotates in a circumferential direction with the main shaft, and the roller is a circle Disc-shaped, the outer circumference of the roller is evenly provided with a plurality of filling roller grooves extending radially inward, the roller is connected with an external power device, and the external power device can control the roller to feed at a certain speed and axis The feed rate in the direction makes the roller fully squeeze the blank so that its diameter is continuously reduced and leaves regularly arranged shark-fin-like streamlined protrusions on the outer surface of the blank forming part. The outer surface of the fairing processed by this device is Equipped with shark fin-like streamlined protrusions, which can better reduce wind resistance and lower cost.

Description

technical field [0001] The invention relates to the technical field of spinning forming methods, in particular to a spinning forming device and forming method with a bionic drag-reducing surface fairing. Background technique [0002] Spinning forming technology can effectively reduce the design wall thickness of parts, reduce weight, and improve fatigue performance. It has become an important means of manufacturing fairings. The function of fairings is mainly to adjust airflow. At present, the reduction of the resistance suffered by the fairing mainly depends on improving the streamline shape of the fairing. The general fairing is a pointed rotary body, which can be directly obtained by spinning, but in terms of reducing the resistance, the required The shape is more complicated, especially for the large-sized fairing, the preparation workload is relatively large, and the process rigidity of the obtained fairing is relatively small. Therefore, it is necessary to propose an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/14B21D51/10
CPCB21D22/14B21D51/10
Inventor 李湘吉王家辉徐恒秋王馨研
Owner JILIN UNIV
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