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

A technology of spin forming and fairing, which can be applied to home appliances, other home appliances, applications, etc. It 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: 2021-09-24
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...

Method used

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

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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

The invention provides a spinning forming device with a bionic anti-drag surface fairing. The spinning forming device comprises a blank piece, the blank piece is fixed to a clamp, and a forming part of the blank piece is exposed out of the outer side of the clamp, the clamp performs circumferential rotation motions along with a main shaft, an idler wheel is in a disc shape, a plurality of idler wheel filling grooves extending inwards in the radial direction are evenly formed in the outer circumferential face of the idler wheel, the idler wheel is connected with an external power device, and meanwhile, the external power device can control the idler wheel to fully extrude the blank piece at a certain feeding speed and axial feeding amount, so that the diameter of the blank piece is continuously reduced, and shark fin-shaped streamline bulges which are regularly arranged are left on the outer surface of the forming part of the blank piece. By means of the spinning forming device with the bionic anti-drag surface fairing, the shark fin-shaped streamline bulges are arranged on the outer portion of the fairing machined through the device, wind resistance can be well reduced, and meanwhile, the cost is low.

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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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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