Skin edge cutting device

Abstract

The utility model provides a skin edge cutting device which comprises a metal edge forming a metal frame. The steel bar is arranged in the metal frame, and the steel bar is used for supporting the metal frame; the transition metal block is arranged between the steel bars; a filling area is formed among the transition metal block, the steel bar and the metal edge; the milling tool is used for trimming the skin; wherein the skin is placed under the edge cutting device, and edge cutting is conducted on the skin along the metal edge through a milling tool; the milling tool is used for trimming the trimming assembly according to the shape of the trimming assembly, the trimmed shape is accurate, the production efficiency is high, and batch production of parts is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sheet metal, and particularly relates to a skin trimming device. BACKGROUND

[0002] In aircraft part manufacturing, there are a large number of aluminum alloy skin parts, the part shape is large and complex, and it is difficult to trim after the part is stretched and formed. The traditional trimming method is to draw a part shape line on the existing workpiece, and then trim along the shape line with scissors.

[0003] Using this method, the thicker the part is, the more difficult it is to trim. At the same time, for large batches of parts, the production efficiency cannot keep up, and the trimming quality is not easy to guarantee. Therefore, a skin trimming device is proposed, which cooperates with a pneumatic milling tool to accurately trim the shape and has high production efficiency, thereby guaranteeing batch production of parts. CONTENT OF THE INVENTION

[0004] The application provides a trimming device, which solves the problems of low traditional trimming quality and low production efficiency; the device has simple structure, convenient operation, good trimming quality and high efficiency.

[0005] The application provides a skin trimming device, which comprises:

[0006] A metal edge forms a metal frame;

[0007] Steel rods are arranged in the metal frame, and the steel rods are used for supporting the metal frame;

[0008] Transition metal blocks are arranged between the steel rods; wherein a filling area is formed between the transition metal blocks, the steel rods and the metal edge;

[0009] A milling tool is used for trimming a skin;

[0010] The skin is placed under the trimming device, and the milling tool is used for trimming the skin along the metal edge.

[0011] Preferably, the device further comprises:

[0012] A glass steel is arranged in the filling area; and the glass steel is provided with a weight-reducing hole.

[0013] Preferably, the transition metal block has a through hole, and the through hole is consistent with an opening shape on the skin.

[0014] Preferably, the glass steel is composed of a liquid resin with high viscosity and glass cloth.

[0015] Preferably, the metal frame has a shape consistent with a part shape.

[0016] Preferably, the device further comprises:

[0017] Positioning bushings arranged at both ends of the glass steel;

[0018] Positioning pins arranged in the positioning bushings, the positioning pins being used for part positioning.

[0019] The beneficial technical effects of the present application are as follows:

[0020] The cutting device provided by the present application is composed of a metal edge, a steel bar, a transition metal block, and glass steel. The metal edge, the steel bar, and the transition metal block form a metal framework, and the glass steel fills the framework to ensure the shape of the cut edge. The cutting tool is used to cut the cutting edge assembly according to the shape of the cutting edge assembly. The cut shape is accurate, the production efficiency is high, and the batch production of parts is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a top view of the cutting device provided by the embodiment of the present application;

[0022] Figure 2 is a side view of the glass steel provided by the embodiment of the present application;

[0023] Figure 3 is a side view of the cutting device provided by the embodiment of the present application;

[0024] wherein the metal edge 1; the steel bar 2; the transition metal block 3; the glass steel 4. DETAILED DESCRIPTION

[0025] Please refer to Figure 1 The cutting device provided by the present application is composed of a metal edge 1, a steel bar 2, and a transition metal block 3, and glass steel 4.

[0026] wherein, please refer to 2 and Figure 3 The boundary around the metal edge 1 is the product shape boundary, and the metal edge 1 and the lower surface of the glass steel are in contact with the upper surface shape of the part. The glass steel is composed of a liquid resin with high viscosity and glass cloth. The metal edge 1, the steel bar 2, and the transition metal block are connected by welding to form a basic framework. The liquid resin with high viscosity in the glass steel is poured into the basic framework. After a period of solidification at room temperature, the mold is demolded. After numerical control processing, the profile precision is ensured.

[0027] In the embodiment of the present application, the metal edge is 20 mm wide and 6 mm high. The glass steel is embedded with positioning bushings at both ends. The glass steel is provided with a clearance hole in the middle. The number and installation position of the steel bars are determined according to the size of the framework. The number and installation position of the transition metal blocks are determined according to the shape of the part. According to the size of the cutting device and the curvature of the cutting device, a carrying handle is installed.

[0028] The application provides a trimming device which is composed of a metal edge, a steel rod, a transition metal block and a glass steel. The metal edge, the steel rod and the transition metal block form a metal framework, and the glass steel component fills the framework to ensure the shape of the trimming. The trimming device uses a pneumatic milling tool to trim the trimming component according to the shape of the trimming component. The trimmed shape is accurate, the production efficiency is high, and the batch production of parts is ensured.

Claims

1. A skin trimming device characterized by, The device comprises: a metal edge constituting a metal frame; steel bars arranged in the metal frame, the steel bars being used to support the metal frame; transition metal blocks arranged between the steel bars; wherein a filling area is formed between the transition metal blocks, the steel bars and the metal edge; a milling tool used to trim the skin; wherein the skin is placed under the trimming device, and the skin is trimmed along the metal edge by the milling tool.

2. The apparatus of claim 1, wherein, The device further comprises: glass steel arranged in the filling area; the glass steel is provided with weight-reducing holes.

3. The apparatus of claim 2, wherein, The transition metal blocks have through holes consistent with the shape of openings on the skin.

4. The apparatus of claim 3, wherein, The glass steel is composed of liquid resin with high viscosity and glass cloth.

5. The apparatus of claim 1, wherein, The metal frame has a shape consistent with the shape of the part.

6. The apparatus of claim 2, wherein, The device further comprises: positioning bushings arranged at both ends of the glass steel; positioning pins arranged in the positioning bushings, the positioning pins being used for part positioning.

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