CN218593440U

CN218593440U - Unmanned aerial vehicle box-type wing rib mould pressing assembling die

Info

Publication number: CN218593440U
Application number: CN202222953272.6U
Authority: CN
Inventors: 李阔; 齐顺祥; 沙灯卜; 彭海珍
Original assignee: Aerospace Shenzhou Aircraft Co ltd
Current assignee: Aerospace Shenzhou Aircraft Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-10
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses an unmanned aerial vehicle box-type wing rib mould pressing assembling die, including formpiston, ejector half piece, split bounding wall and apron, the upper end of formpiston is equipped with the projection, and the upper end of projection is equipped with the top surface recess, and the ejector half piece embedding is to the top surface recess in order to cooperate the product drawing of patterns, the split bounding wall has still been cup jointed in the outside of projection, the upper end of split bounding wall is equipped with the apron, and the apron closes with the formpiston reciprocal positioning lid, realizes compressing tightly of this mould, the utility model discloses a box-type wing rib mould pressing assembling die compares traditional single face mould shaping mode, and the formpiston operating space is unrestricted, can realize that the product internal and external surface is the plain noodles, has avoided layering and long-pending gluey situation that the corner leads to, and product defect is few, and surface quality is high, need not follow-up to polish to mend to repair, batch production cost reduction.

Description

Unmanned aerial vehicle box-type wing rib mould pressing assembling die

Technical Field

The utility model relates to a mould technical field that carbon-fibre composite made usefulness especially relates to an unmanned aerial vehicle box-type wing rib mould pressing assembling die.

Background

The wing ribs of the unmanned aerial vehicle box type are usually used as transverse stress members of the wings, are distributed along the chord direction and are generally divided into front edge ribs, wing ribs and rear edge ribs which are connected with a wing beam web to ensure the integral stability of the wings. The wing rib shape is mostly trilateral or multiaspect corner box type structure, accumulates to certain thickness through the prepreg stromatolite and forms. The forming method is mostly autoclave forming or compression molding, and the mold form is mostly single-side female mold or compression molding mold. For the box-shaped rib with the multi-surface corner for the aviation unmanned aerial vehicle, the outer dimension is small, the number of the R angles in the inner part is large, the folded surface is arc-shaped, and the precision requirement of the outer surface matched with the wing and the beam is higher. The traditional single-sided female die is adopted for forming, the layering space is small, the operation is difficult, the conditions of R angle overhead, glue accumulation and layering are difficult to avoid, and the product is easy to scrap. If the traditional upper and lower split matched molds are adopted, the prepreg laying layer on the vertical surface of the mold is easy to extrude and contort in the mold closing process, the normal stress of the cloth layer is unbalanced, the product has the defects of meat deficiency, uneven thickness and the like, and the product can not be normally used easily.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an unmanned aerial vehicle box type wing rib mould pressing assembling die to solve the technical problem mentioned in the background art.

For solving the technical problem, the utility model discloses a following technical scheme realizes:

the utility model provides an unmanned aerial vehicle box-type wing rib mould pressing assembling die, includes formpiston, top module, split bounding wall and apron, the upper end of formpiston is equipped with the projection, and the upper end of projection is equipped with the top surface recess, and top module embedding is in order to cooperate the product drawing of patterns to the top surface recess, the split bounding wall has still been cup jointed in the outside of projection, the upper end of split bounding wall is equipped with the apron, and the apron closes with the formpiston mutual positioning lid, realizes compressing tightly of this mould.

The improved structure is characterized in that the split enclosing plate is provided with three halves, an open annular cavity is formed after the three split enclosing plates are enclosed, the annular cavity can be just sleeved on the convex column, positioning bosses are arranged on two sides of the upper end of the male mold, positioning grooves matched with the positioning bosses for positioning and pressing are arranged on two sides of the lower end of the cover plate, annular glue discharging grooves beneficial for discharging redundant resin and cleaning deposited glue are further arranged on the male mold, a plurality of equal-thickness bosses with the same thickness as a product are further arranged on one side of the annular glue discharging grooves and the side surfaces of the convex columns, when the split enclosing plate is enclosed outside the convex columns, the inner side surfaces of the split enclosing plate and the outer side surfaces of the convex columns are separated by the equal-thickness bosses, the thickness is just equal to the thickness of the product, the bottom of the cover plate is provided with a cover plate groove, and the cover plate groove is just nested with the split enclosing plate.

The improved structure is characterized in that the cover plate is provided with a threaded ejection hole for demolding of the cover plate, and each flap of the split coaming is provided with a coaming opening threaded hole for demolding of the split coaming.

The further improvement is that the bottom of the male die is provided with a bottom groove, the bottom groove is provided with a demoulding threaded hole, the bottom of the top die block and the same axial position of the demoulding threaded hole are provided with a top die hole, and the demoulding threaded hole extends upwards all the way to penetrate through the convex column and can reach the top die hole.

The further improvement lies in that demolding prying openings are further formed in the periphery of the bottom of the cover plate.

The improved split coaming structure is characterized in that three coamings of the split coamings are divided along the corners of the folded surfaces of the product, wherein the demoulding inclination of each petal is greater than 90 degrees, a glue guide groove is formed on the matching surface between each petal of the split coamings, so that the glue can be conveniently discharged by prepreg, and secondary processing reference holes are reserved at the bottom of each petal of the coamings of the split coamings.

The improvement is that the top module and a top surface groove on the male die are combined to form a molding surface, the male die provides a laying surface for a product, the split coaming provides a product outer surface molding surface for each folding surface laying on the male die, and the cover plate buckles the split coaming covering the prepreg on the surface of the male die to provide rigid pressure.

The further improvement is that the depth of the circumferential glue discharging groove is 5mm, the width of the circumferential glue discharging groove is 6mm, the thickness of the split enclosing plate is greater than 10mm, and the bottom plane of the split enclosing plate is just in complete contact with the ground of the male die after being pressed so as to ensure the shape precision of the part

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) Compared with the traditional single-face die forming mode, the box-type wing rib die-pressing combined die has the advantages that the operation space of the male die is not limited, the inner surface and the outer surface of a product can be smooth, layering and glue accumulation caused by over-small corners are avoided, the product defects are few, the surface quality is high, subsequent polishing, glue supplementing and repairing are not needed, and the batch production cost is reduced;

(2) Apron and split bounding wall lock form, compare in traditional upper and lower split mould pressing die, can effectively guarantee that each surperficial atress of product is even, avoided the compound die to produce the scarce meat situation that extrudees and rub the cloth layer and lead to, guaranteed the even uniformity of product thickness, reduce the product rejection rate, effectively improve product appearance precision and intensity, further promote and other part assembly connection precisions.

(3) The split combination mode is adopted, the layers can be laid on the male die, the operation is simple, the cloth layers on the surfaces of the product can be uniformly stressed in the die pressing process, the cloth layers are not damaged, the layered overhead condition is generated, the surface quality of the part is good, the appearance precision is high, the demoulding is convenient, the secondary repair content is reduced, the product quality stability is ensured, the production efficiency can be effectively improved, and the batch cost is reduced.

Drawings

FIG. 1: the overall structure of the combined die of the utility model is shown in an exploded view I;

FIG. 2: the overall structure of the combined die of the utility model is shown in an exploded view II;

FIG. 3: the overall structure of the combined die of the utility model is a radial dissection sectional view;

FIG. 4: the first three-dimensional view of the whole structure of the combined die of the utility model is shown;

FIG. 5 is a schematic view of: the second three-dimensional view of the whole structure of the combined die of the utility model is shown;

FIG. 6: is a three-piece coaming decomposition schematic diagram of the combined die split coaming of the utility model;

in the figure: the device comprises a male die 1, a top module 2, a split coaming 3, a cover plate 4, a convex column 5, a top surface groove 6, a positioning boss 7, a positioning groove 8, a circumferential glue discharging groove 9, an equal-thickness boss 10, a thread ejecting hole 11, a coaming opening threaded hole 12, a bottom groove 13, a demoulding threaded hole 14, a top die hole 15, a demoulding prying opening 16, a glue guiding groove 17, a secondary processing reference hole 18 and a cover plate groove 19.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1 to 6:

example 1: the utility model discloses an unmanned aerial vehicle box type wing rib mould pressing assembling die, including formpiston 1, top module 2, split bounding wall 3 and apron 4, the upper end of formpiston 1 is equipped with projection 5, and the upper end of projection 5 is equipped with top surface recess 6, and top module 2 imbeds to the interior drawing of patterns of cooperation product in the top surface recess 6, split bounding wall 3 has still been cup jointed in the outside of projection 5, split bounding wall 3's upper end is equipped with apron 4, and apron 4 covers with formpiston 1 mutual positioning, realizes compressing tightly of this mould, and wherein, top module 2 and the top surface recess 6 combination profile on the formpiston 1, formpiston 1 provides the layering for the product, split bounding wall 3 provides the product surface profile to each folding surface on the formpiston 1, apron 4 carries out the lock to the split bounding wall 3 that covers formpiston 1 surface preimpregnation material, provides rigid pressure, the utility model discloses the mould adopts split combination mould pressing form, can be on formpiston 1, easy operation, but each surface of in-process product evenly atress, cloth layer situation is distributed to the not damaged and the layering situation appears, and part surface quality is good, and the convenient, and the appearance quality reduction of secondary quality is enough improved effectively the drawing of production cost reduction, and the aerial production quality reduction in batches.

Particularly, split bounding wall 3 can be between the multi-petal bounding wall enclose together, the utility model discloses the preferred is three lamellas, the both sides of formpiston 1 upper end are equipped with location boss 7, the both sides of apron 4 lower extreme are equipped with and cooperate the positioning groove 8 that the location pressed fit used with location boss 7, still be equipped with on the formpiston 1 and do benefit to the unnecessary resin of product discharge and clear up the hoop binder removal recess 9 that the adhesive deposit was used, still be equipped with a plurality of equal thickness bosss 10 the same thickness with the product on one side of hoop binder removal recess 9, the side of projection 5, when split bounding wall 3 encloses and closes in the projection 5 outside, the medial surface of split bounding wall 3 is kept apart by equal thickness boss 10 with the lateral surface of projection 5, and the space between the medial surface of split bounding wall 3 and the lateral surface of projection 5 just equals product thickness, so just can accurate control product thickness, the bottom of apron 4 is equipped with apron recess 19, apron recess 19 just nests mutually with split bounding wall 3 and compresses tightly split bounding wall 3.

Specifically, a threaded ejecting hole 11 is formed in the cover plate 4 and used for demolding the cover plate 4, a surrounding plate opening threaded hole 12 is formed in each dividing surrounding plate of the dividing surrounding plate 3 and used for assisting the dividing surrounding plate 3 to be separated from a product, a bottom groove 13 is formed in the bottom of the male die 1, a demolding threaded hole 14 is formed in the bottom groove 13, a top die hole 15 is formed in the bottom of the top die block 2 and the demolding threaded hole 14 in the same axial position, and the demolding threaded hole 14 extends upwards all the way to penetrate through the convex column 5 and can reach the top die hole 15.

Specifically, in order to separate the cover plate 4 from the male mold 1 better, a stripping pry opening 16 is arranged around the bottom of the cover plate 4

In the process of demoulding and separating the product, firstly, the cover plate 4 can be separated from the split coaming 3 by utilizing the thread ejecting hole 11 on the cover plate 4 and the prying openings 16 on the periphery, and the cover plate 4 is taken out; then, the shroud plate on the split shroud plate 3 is used for opening the threaded hole 12, the split shroud plate 3 is assisted to be separated from a product, then the ejection module 2 is ejected upwards through the male die 1 at the bottom to enable the product to be demolded, naturally, the process can be implemented by means of common demolding tools such as demolding screws, hoisting machinery and the like, the steps of the assembly die are opposite to the steps, before layering, the male die 1 is placed on a platform, then the ejection module 2 is placed into the groove 6 in the top surface of the male die 1 to form a molding surface, after layering is finished, the split shroud plate 3 is placed on the outer surface of the layering in a circumferential direction, and then the cover plate 4 is buckled to the outer surface of the split shroud plate 3 to be subjected to compression molding by a hot press.

In particular, because a draft angle is required for demolding the product, the draft angle is preferably outward opened, that is, more than 90 degrees is optimal, because less than 90 degrees cannot be demolded, and just equal to 90 degrees, the surface smoothness of the product is easily influenced because the friction force between the mold and the product pulls or extrudes the product during demolding, here, the three enclosing plates of the split enclosing plate 3 are divided along the corner of the folding surface of the product, wherein the draft angle of each split is more than 90 degrees, it should be noted that, here, the angle more than 90 degrees is relative to a part wrapped by the split enclosing plate, which can be understood as large at the bottom and small at the top, the matching surface between each split of the split enclosing plate 3 is provided with a glue guiding groove 17 for facilitating the glue drainage of the prepreg, and the secondary processing reference hole 18 is reserved at the bottom of each split enclosing plate 3, the side surface of the cover plate 4, the top surface and the side surface of the male die 1 and the bottom surface of the top module 2 are also provided with secondary processing reference holes 18, specifically, the depth of the annular glue discharging groove 9 is 5mm, the width of the annular glue discharging groove is 6mm, the thickness of the split coaming 3 is more than 10mm, the bottom plane of the split coaming 3 is just in complete contact with the ground of the male die 1 after being pressed so as to ensure the shape precision of parts, the method is different from the traditional matched die form (namely a female die and a male die 1), aiming at a box type part, in the actual manufacturing process of products, after the layering is finished, a cloth layer is not in a completely compact state, the laid cloth layer is not in a theoretical thickness of 1mm (for the product thickness of the box type part model), the cloth layer is not in a theoretical thickness of 1mm, the mould pressing amount can be generated, after the pressing is carried out in place by using a press, so compared with the traditional upper and lower split mould, the main defect is that the product elevation layering is product layering, in the die assembly process, the mould pressing amount problem can cause bruising on the vertical surface layer, the meat shortage condition can occur to the product, the stress is not uniform, no pressure transmission (normal force) exists, the product is easy to be pressed and not compacted, the product is meat shortage, the layer is damaged and other typical problems are caused, the product use strength can be reduced, compared with the single-surface female die forming, the product with single-surface light can only be manufactured, the product has small overall dimension, the female die layer is small in space and difficult to operate, the folded surfaces of the product are multiple, the R angle is small, the defects of the product are mainly R angle layer overhead, layering and glue accumulation.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides an unmanned aerial vehicle box-type wing rib mould pressing assembling die which characterized in that: the mold comprises a male mold, a top module, a split enclosing plate and a cover plate, wherein a convex column is arranged at the upper end of the male mold, a top surface groove is formed in the upper end of the convex column, the top module is embedded into the top surface groove to be matched with product demolding, the split enclosing plate is further sleeved on the outer side of the convex column, the cover plate is arranged at the upper end of the split enclosing plate, and the cover plate and the male mold are mutually positioned and covered to realize the compression of the mold.

2. The unmanned box wing rib molding assembly mold of claim 1, wherein: the split coaming is provided with three halves, an open annular cavity is formed after the three-half split coaming is closed, the annular cavity can be just sleeved on the convex column, positioning bosses are arranged on two sides of the upper end of the male mold, positioning grooves matched with the positioning bosses for positioning and pressing are arranged on two sides of the lower end of the cover plate, annular glue discharging grooves beneficial to discharging redundant resin from a product and cleaning deposited glue are further arranged on the male mold, a plurality of bosses with the same thickness as the product are further arranged on one side of the annular glue discharging grooves and the side surfaces of the convex columns, when the split coaming is closed on the outer side of the convex columns, the inner side surfaces of the split coaming and the outer side surfaces of the convex columns are separated by the bosses with the same thickness, the thickness is just equal to the thickness of the product, a cover plate groove is arranged at the bottom of the cover plate, and the cover plate groove is just nested with the split coaming.

3. The profile rib molding assembly of either one of claims 1 or 2, wherein: the cover plate is provided with a threaded ejection hole for demolding of the cover plate, and each split coaming of the split coamings is provided with a coamings opening threaded hole for demolding of the split coamings.

4. The profile rib molding assembly of either one of claims 1 or 2, wherein: the bottom of the male die is provided with a bottom groove, the bottom groove is provided with a demoulding threaded hole, the bottom of the top die block and the same axial center part of the demoulding threaded hole are provided with a top die hole, and the demoulding threaded hole extends upwards all the way to penetrate through the convex column and can reach the top die hole.

5. The unmanned box wing rib molding assembly mold of claim 1, wherein: and demolding prying openings are formed in the periphery of the bottom of the cover plate.

6. The combination mold for molding unmanned aerial vehicle box-type wing ribs as claimed in claim 2, wherein: divide along product folded surface corner between the three lamella bounding walls of split bounding wall, wherein the drawing of patterns inclination of each lamella all is greater than 90 degrees, the fitting surface between every lamella of split bounding wall is formed with leads gluey groove, the preimpregnation material binder removal of being convenient for, the bottom of every lamella bounding wall of split bounding wall all reserves secondary operation benchmark hole.

7. The unmanned box wing rib molding assembly mold of claim 1, wherein: the top module and the top surface groove on the male die are combined to form a molding surface for product demolding, the male die provides a laying surface for a product, the split coaming provides a product outer surface molding surface for each folding surface laying layer on the male die, and the cover plate buckles the split coaming covering the prepreg on the surface of the male die to provide rigid pressure.

8. The unmanned box wing rib molding assembly mold of claim 2, wherein: the depth of the circumferential glue discharging groove is 5mm, the width of the circumferential glue discharging groove is 6mm, the thickness of the split enclosing plate is larger than 10mm, and the bottom plane of the split enclosing plate is just in complete contact with the ground of the male die after being pressed so as to ensure the shape precision of parts.