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A slender part forming device with closed angle and forming method

A molding device and molding method technology, applied in the field of composite parts processing and molding, can solve problems such as difficult demoulding, poor forming of parts, scratches, etc., and achieve the effect of easy demoulding

Active Publication Date: 2022-05-10
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the airtightness of the composite mold is poor and air leakage occurs, it will directly affect the compactness of the internal structure of the composite parts, thereby reducing the mechanical properties and physical indicators of the product. The requirements for large and medium-sized key and important composite parts are strict, and only scrapped products , especially the slender ribs and rib parts. These parts are irregular in shape and have sunken closed corners, which cause the parts to be difficult to form and not easy to demould. The traditional method of demoulding is easy to scratch the product on the surface of the part, affecting Part surface quality

Method used

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  • A slender part forming device with closed angle and forming method
  • A slender part forming device with closed angle and forming method
  • A slender part forming device with closed angle and forming method

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Experimental program
Comparison scheme
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Embodiment 1

[0057] This embodiment proposes a slender part forming device with closed angles, which is used to form and demould the processed parts; as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 13 As shown, the processed parts are slender rib-like parts with closed angles and slender rib-like parts with closed angles made from part blanks, and the part forming device includes mold body I1, mold body II2, Phantom III3 and pia 10;

[0058] The mold body II2 is a "⊥"-shaped rib structure composed of a bottom long plate and a middle vertical plate arranged in the middle of the bottom long plate, and a groove 11 is provided on one end of the bottom long plate of the mold body II2;

[0059] The mold body I1 is also a "⊥" type rib structure composed of a bottom long plate and a middle vertical plate arranged in the middle of the bottom long plate; one end surface of the bottom long plate of the mold body I1 is provi...

Embodiment 2

[0066] This embodiment is on the basis of above-mentioned embodiment 1, in order to realize the present invention better, as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 13 As shown, further, the parts forming device also includes a base 8, the bottom of the mold body II2 is provided with a lower tapered groove 4, and the base 8 is provided with a groove corresponding to the lower tapered groove 4 and used for The taper key 12 for positioning and fixing the phantom II2;

[0067] The mold body II2 is detachably positioned on the mounting base 8 through the taper key 12, and the mold body I1 and the mold body III3 are formed and installed on the mold body II2 through the conical positioning boss 7 and the groove 11 of the mold body II2. The detachable final "⊥" type rib structure on the base 8.

[0068] Other parts of this embodiment are the same as those of Embodiment 1 ab...

Embodiment 3

[0070] This embodiment is based on any one of the above-mentioned embodiments 1-2, in order to better realize the present invention, further, as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 13 As shown, the base 8 is provided with part layup angle lines; as shown in the figure, the part layup angle lines are horizontally arranged and displayed in the form of X-axis Y-axis coordinate arrow lines, including pointing to 0°, Lines in four directions of 90°, 45°, and -45°.

[0071] Other parts of this embodiment are the same as those of any one of Embodiments 1-2 above, so details are not repeated here.

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PUM

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Abstract

The invention proposes a molding device and molding method for slender parts with closed angles. By separating the male and female model surfaces and setting the mold as a detachable structure, complex, slender, irregular, and closed parts are realized. High-quality rapid prototyping of complex composite parts where corners equal one-piece structures. The present invention realizes high-efficiency, rapid and high-quality parts forming through the above-mentioned arrangement. Using the device and method of the present invention can integrally form slender composite material reinforcing ribs and rib parts with closed angles and local sags. The male mold body adopts a block structure for easy demoulding, and demoulding does not damage the surface of the parts, which can ensure that it has Excellent air tightness and improve the surface quality of parts.

Description

technical field [0001] The invention belongs to the technical field of processing and forming of composite material parts, and in particular relates to a forming device and a forming method for an elongated part with closed angles. Background technique [0002] Advanced composite materials have many advantages of light weight, high strength, fatigue resistance and corrosion resistance, and have been widely used in the aerospace field. At present, the main load-bearing components of composite materials are still dominated by the prepreg-autoclave process. Due to the needs of the aircraft's aerodynamic shape and functional layout, some ribs and ribs are U-shaped, some of the sides are hyperboloid, some of the sides are closed angles, and some parts have a complex shape of bulging or sinking, and the top of the part is also V-shaped. , the surface accuracy of such parts affects the aircraft assembly quality, the surface of the closed-angle parts is easily scratched during the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34B29C70/54B29C33/42
CPCB29C70/342B29C70/54B29C33/42
Inventor 王军饶华王高明谭化健张仁安
Owner CHENGDU AIRCRAFT INDUSTRY GROUP