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Composite material plate-and-shell structure arbitrary-angle conical hole positioning grinding device and method

A composite material plate, any angle technology, used in grinding machines, grinding/polishing equipment, machine tools designed for grinding workpiece rotating surfaces, etc. Effect

Inactive Publication Date: 2012-06-27
BEIHANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing damage removal is mainly achieved by manual manipulation of pneumatic grinding tools by workers. This method is insufficient in both accuracy and efficiency.

Method used

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  • Composite material plate-and-shell structure arbitrary-angle conical hole positioning grinding device and method
  • Composite material plate-and-shell structure arbitrary-angle conical hole positioning grinding device and method
  • Composite material plate-and-shell structure arbitrary-angle conical hole positioning grinding device and method

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Embodiment Construction

[0041] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0042] The invention is a positioning and grinding device for a tapered hole at any angle of a composite material plate and shell structure, such as figure 1 As shown, it includes a grinding tool 1, a laser positioning device 2 and a pneumatic grinding tool 3.

[0043] Grinding cutter 1 is fixed on the drill bit position of pneumatic grinding tool 3, and pneumatic grinding tool 3 is existing electric drill.

[0044] Grinding knives 1 such as figure 2 , image 3 As shown, the tip of the grinding tool 1 is conical, φ 1 Grinding tool diameter for grinding knives, φ 2 is the diameter of the mounting rod for the grinding tool, α is the taper angle of the grinding head itself, and l is the height of the grinding head.

[0045] The laser positioning device 2 includes two sets of laser emitting and receiving devices 201, an angle indicating plate 202, a...

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Abstract

The invention discloses a composite material plate-and-shell structure arbitrary-angle conical hole positioning grinding device and a method. A position respectively on a composite material flat plate and a small-curvature plate-shell to be repaired is previously well perforated, then a layer of annular laser reflection membrane is previously adhered onto the periphery of the hole, the width of the reflection membrane is slightly larger than the distance of two laser heads of a laser device, an angle of a laser positioning device on a grinding device is well adjusted, so an angle is formed between axes of the laser device and the grinding device, and the angle can be obtained through calculation. The angle of the grinding device is adjusted in the laser reflection principle, so the two lasers heads are respectively projected on the inner edge and the outer edge of the reflection membrane, the verticality is adjusted, so the reflected light enters a laser receiving device, when the twolaser receiving devices simultaneously receive a signal, a buzzer device inside each laser receiving device produces bumming to indicate that the device is well adjusted. Then the grinding device is started to grind edges of the hole until the edge with a given angle is ground. Finally a plate-and-shell structural arbitrary-angle conical hole can be quickly positioned and ground.

Description

technical field [0001] The invention relates to a device and method for positioning and grinding a tapered hole at any angle in a composite material plate shell structure, and belongs to the technical field of composite material structure repair. Background technique [0002] With the extensive application of composite materials in modern aircraft structures, aircraft composite structure repair has become an important technical problem that must be solved. When repairing a composite material structure, it is necessary to remove the damaged area, and its edge is often a bevel with a certain angle. Due to the small angle, the grinding area is large, and high-precision grinding has a direct impact on the success of the repair. [0003] Existing damage removal mainly relies on manual manipulation of pneumatic grinding tools by workers, which is insufficient in both accuracy and efficiency. Contents of the invention [0004] The object of the present invention is to solve the ...

Claims

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Application Information

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IPC IPC(8): B24B5/48B24B5/35
Inventor 关志东穆军武刘德博陈萍刘佳乔柳平邱太文刘璐
Owner BEIHANG UNIV
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