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Shape trimming method and device for honeycomb sandwich floor part

A technology of honeycomb interlayer and parts, applied in positioning devices, metal processing machinery parts, clamping, etc., can solve problems such as low efficiency and small out-of-tolerance size

Pending Publication Date: 2021-05-14
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the shape of composite honeycomb sandwich panel parts has been processed by CNC machining, the shape has basically met the tolerance requirements of the shape and size. Manual grinding with sandpaper is very inefficient and requires repeated grinding and trimming

Method used

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  • Shape trimming method and device for honeycomb sandwich floor part
  • Shape trimming method and device for honeycomb sandwich floor part
  • Shape trimming method and device for honeycomb sandwich floor part

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] Composite material honeycomb sandwich floor parts are composed of upper and lower composite skins with a honeycomb core sandwiched in the middle. After the shape of the composite honeycomb sandwich panel is processed by numerical control, the honeycomb core around the panel is exposed. In order to reduce the corrosion of the honeycomb core by the environment, it is generally required to remove a certain depth of honeycomb core around the honeycomb panel, and then use adhesives for edge sealing ,Such as figure 1 As shown, there is a honeycomb core 10 in the middle, edge sealants 20 on both sides, an upper skin 30 on the upper surface, and a lower skin 40 on the lower surface. In order to meet the floor assembly requirements, the design has strict requirements on the shape tolerance of the floor parts, generally within the tolerance range of -0.5 ~ 0mm, and after using adhesive for edge sealing, the edge sealing glue around the board will be raised and uneven, The outer ...

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PUM

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Abstract

The invention discloses a shape trimming method for a honeycomb sandwich floor part. The shape trimming method for the honeycomb sandwich floor part comprises the following steps that a horizontal worktable is customized; the honeycomb sandwich floor part is fixed to a special auxiliary tool which is shared by shape machining, positioning and inspection; and a trimming cutter, with a bearing and a cylindrical milling cutter, dedicated to the honeycomb sandwich floor part is clamped on a trimmer, the posture of the trimmer is adjusted, a retainer ring of the trimmer is attached to the upper surface of the part, the trimming cutter is ensured to be perpendicular to the horizontal worktable, the trimmer is horizontally moved along the edge of the part to trim the shape of the part, and after machining, the auxiliary tool is used for inspecting the shape of the part. According to the shape trimming machining method for the honeycomb sandwich floor part, the cost is greatly reduced, the efficiency is greatly improved, and the design tolerance requirement is met. The shape trimming device for the honeycomb sandwich floor part has the same beneficial effects.

Description

technical field [0001] The invention belongs to the technical field of composite material processing, and in particular relates to a method and a device suitable for contour trimming of composite material honeycomb sandwich floor parts. Background technique [0002] As an important member of lightweight composite materials, honeycomb sandwich structure composite materials have the characteristics of light weight, high specific strength, especially high bending stiffness. Its unique rebound characteristics can absorb vibration energy, good sound insulation and noise reduction effect, excellent corrosion resistance, insulation, flame retardancy and environmental adaptability, which makes the honeycomb sandwich composite material in the requirements of small structural disturbance and The application aspect of lightest weight is very attractive, so it is widely used in the aerospace industry. Composite honeycomb sandwich floor parts are very common in the aerospace industry. ...

Claims

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Application Information

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IPC IPC(8): B23C3/12B23Q3/06
CPCB23C3/12B23Q3/062
Inventor 尹萍鄢和庚郑美侠胡静马军王德盼王辉王玮刘影郭蕊娜李延平蔡旻刘晶吴盼
Owner JIANGXI HONGDU AVIATION IND GRP
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