Wind tunnel blade hoisting type forming tool

Abstract

The utility model discloses a wind tunnel blade hoisting type forming tool in the technical field of wind tunnel blade forming, which comprises a portal frame, a blade handle positioning pile used for fixing and hoisting a blade handle is arranged at the top of the portal frame, and a supporting positioning pile is arranged at the bottom of the portal frame and below the blade handle positioning pile. According to the utility model, the blade handle and the foam type are hoisted, so that the glue solution only flows downwards under the action of gravity when the prepreg of the rest part of the composite blade is paved again, the flowing direction of the glue solution is determined, the controllability is realized, the stability of the mass center is ensured, and the device can be used for manufacturing the wind tunnel blade.

Description

Technical Field

[0001] The utility model relates to the technical field of wind tunnel blade forming, and particularly relates to a forming tooling for wind tunnel blades. Background Technique

[0002] In the prior art, the forming of wind tunnel blades often adopts the "autoclave + RTM forming" method. Among them, the main beam, the front beam and the inner skin are formed by autoclave, and the outer skin and the wind tunnel blades are formed by RTM. The autoclave forming in this forming method can ensure the uniform internal resin content, dense internal structure, low porosity and stable and reliable mechanical properties of the wind tunnel blades. However, the RTM forming process has defects such as higher porosity of the blades, higher resin content and uneven distribution, and greater operation labor intensity, thus affecting the consistency of the weight and the center of gravity of the wind tunnel blades and the production efficiency of the wind tunnel blades.

[0003] The RTM forming process is to pre-place the reinforcing material preform in a closed forming mold, inject low-viscosity thermosetting resin into the mold cavity through a glue injection device to infiltrate the reinforcing material preform, and heat the mold to cure the resin to form a product.

[0004] The wind tunnel blade (hereinafter simply referred to as "blade") is composed of a metal leaf handle and a composite blade assembly. Considering the structural characteristics of the blade, there is a sealing problem at the cylindrical part of the leaf handle of the forming mold. If the sealing is not tight, there will be a problem of glue flow during glue injection. The uncertainty of the glue flow direction will cause the glue injection to fail; it will also cause problems such as a large deviation in the position of the center of mass of the blade. Content of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a hoisting type forming tooling for wind tunnel blades to solve the problems caused by the uncertainty of the glue flow direction in the prior art.

[0006] The purpose of the utility model is realized as follows: A hoisting type forming tooling for wind tunnel blades includes a gantry. A leaf handle positioning pile for fixing and hoisting the leaf handle is installed at the top of the gantry, and a support positioning pile is arranged below the leaf handle positioning pile at the bottom of the gantry.

[0007] Further, the leaf handle positioning pile includes an upper positioning sleeve and a locking nut, and a support flange is arranged at the top of the upper positioning sleeve.

[0008] Further, a reinforcing rib is arranged between the support flange and the upper positioning sleeve.

[0009] Further, the support positioning pile includes a support bottom plate, a lower positioning sleeve is arranged on the support bottom plate, and a liftable positioning column is arranged at the top of the lower positioning sleeve.

[0010] Further, the bottom of the lower positioning sleeve is mounted on the support bottom plate through a positioning plate.

[0011] Further, the positioning post is threadedly connected to the lower positioning sleeve.

[0012] Further, a hand rod is penetratively provided on the positioning post.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By using the present utility model, the petiole and the foam type are hoisted, so that when the prepreg of the remaining parts of the composite blade is laid again, the adhesive liquid will only flow downward under the action of gravity, thereby determining the flow direction of the adhesive liquid, realizing controllability, and ensuring the stability of the centroid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the petiole positioning pile in the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the support positioning pile in the present utility model.

[0018] Figure 4 It is an assembly schematic diagram of the present utility model and the wind tunnel blade.

[0019] Among them, 100 is the gantry, 200 is the petiole positioning pile, 201 is the upper positioning sleeve, 202 is the locking nut, 203 is the support flange, 204 is the reinforcing rib, 300 is the support positioning pile, 301 is the support bottom plate, 302 is the lower positioning sleeve, 303 is the positioning post, 304 is the positioning plate, 305 is the hand rod, and 400 is the wind tunnel blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] A wind tunnel blade hoisting and forming tooling as shown in the figure, including a gantry 100, a petiole positioning pile 200 for fixing and hoisting the petiole is installed at the top of the gantry 100, and a support positioning pile 300 is arranged below the petiole positioning pile 200 at the bottom of the gantry 100.

[0022] Specifically, the gantry 100 is welded by square tubes. The petiole positioning column 303 is used to fix and hoist the petiole of the wind tunnel blade 400, and the support positioning pile 300 is used to support the foam to ensure the coaxiality between the petiole and the foam core.

[0023] During use, first fix the petiole on the petiole positioning pile 200, then install the foam core. After adjusting the coaxiality position, use the support positioning pile 300 for positioning, and then lay the remaining prepregs. Since the overall foam core is arranged vertically, when laying the prepregs, the glue will flow downward due to the action of gravity, so that the flowing direction of the overall glue can be controlled.

[0024] Furthermore, the petiole positioning pile 200 includes an upper positioning sleeve 201 and a locking nut 202, and a support flange 203 is arranged at the top of the upper positioning sleeve 201.

[0025] Specifically, during installation, the positioning sleeve is hoisted on the top of the gantry 100 in cooperation with the support flange 203, and can also be fixed by welding. After the petiole is inserted into the bottom of the positioning sleeve, use the locking nut 202 to be threadedly connected with the petiole to realize the connection between the petiole and the positioning sleeve.

[0026] It should be noted that such assembly makes the fixing of the petiole more convenient and reliable.

[0027] Furthermore, a reinforcing rib 204 is arranged between the support flange 203 and the upper positioning sleeve 201.

[0028] It should be noted that the design of the reinforcing rib 204 can enhance the connection strength between the support flange 203 and the upper positioning sleeve, thus ensuring the reliability when hoisting the petiole.

[0029] Furthermore, the support positioning pile 300 includes a support bottom plate 301, a lower positioning sleeve 302 is arranged on the support bottom plate 301, and a liftable positioning column 303 is arranged at the top of the lower positioning sleeve 302.

[0030] Specifically, the support bottom plate 301 is fixed at the bottom of the gantry 100, the lower positioning sleeve is fixedly installed on the support bottom plate 301, the positioning column 303 can be lifted, and the top of the positioning column 303 is processed into a spherical surface to avoid damaging the foam core.

[0031] It should be noted that the liftable positioning column 303 facilitates the adjustment of coaxiality, and after adjustment, support positioning is carried out.

[0032] Further, the bottom of the lower positioning sleeve 302 is installed on the support bottom plate 301 through the positioning plate 304.

[0033] Specifically, the positioning plate 304 can be fixed on the support bottom plate 301 by screws, and the support bottom plate 301 is provided with a groove corresponding to the positioning plate 304.

[0034] It should be noted that such a design allows the selection of lower positioning sleeves of different specifications according to actual needs, and replacement or repair can be carried out as required.

[0035] Further, the positioning column 303 is threadedly connected to the lower positioning sleeve 302.

[0036] It should be noted that the threaded connection method is a simple connection method for realizing lifting, which is convenient to operate and reliable in support.

[0037] Further, a hand rod 305 is penetrated through the positioning column 303.

[0038] It should be noted that in order to more conveniently realize the lifting of the positioning column 303.

[0039] The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A hoisting type forming tooling for a wind tunnel blade, characterized in that, It includes a gantry (100), and at the top of the gantry (100), there is a petiole positioning pile (200) for fixing and hoisting the petiole. Below the petiole positioning pile (200) at the bottom of the gantry (100), there is a support positioning pile (300).

2. The wind tunnel blade hoisting type forming tooling according to claim 1, characterized in that, The petiole positioning pile (200) includes an upper positioning sleeve (201) and a locking nut (202), and at the top of the upper positioning sleeve (201), there is a support flange (203).

3. The wind tunnel blade hoisting type forming tooling according to claim 2, characterized in that Between the support flange (203) and the upper positioning sleeve (201), there is a reinforcing rib (204).

4. A wind tunnel blade hoisting type forming tooling according to any one of claims 1-3, characterized in that, The support positioning pile (300) includes a support bottom plate (301), on which there is a lower positioning sleeve (302), and at the top of the lower positioning sleeve (302), there is a liftable positioning column (303).

5. The wind tunnel blade hoisting type forming tooling according to claim 4, characterized in that, The bottom of the lower positioning sleeve (302) is installed on the support bottom plate (301) through a positioning plate (304).

6. A wind tunnel blade hoisting type forming tooling according to claim 4, characterized in that, The positioning column (303) is threadedly connected to the lower positioning sleeve (302).

7. The wind tunnel blade hoisting type forming tooling according to claim 6, characterized in that, A hand rod (305) is penetrated through the positioning column (303).

Images