Die pressing die for integrally forming control surface

Abstract

The mold pressing mold comprises an upper mold body, a middle mold body and a lower mold body which are matched with one another in a mold closing mode, a mold cavity is formed among the upper mold body, the middle mold body and the lower mold body, and the inner side wall of the mold cavity is matched with the shape of the control surface; lower side core molds are arranged on the lower mold and located on the two sides of the cavity respectively, and upper side core molds corresponding to the lower side core molds are arranged on the upper mold. The lower side core mold comprises a rotating shaft positioning block and a connecting block, the rotating shaft positioning block is arranged on the lower mold, the connecting block is arranged on the rotating shaft positioning block, and the connecting block is matched with the rotating shaft positioning block to position and connect a rotating shaft; the lower die is provided with a corner rib positioning square hole used for containing a corner rib connecting part, and the lower die is provided with a corner rib positioning piece used for positioning the corner rib connecting part. The device has the effects that the control surface product is integrally formed, and the forming precision is high.

Description

Technical Field

[0001] The present application relates to the field of rudder surface molds, and in particular to a molding die for integrally forming a rudder surface. Background Art

[0002] The control surface refers to a small movable wing surface installed on the outside of the trailing edge of the wingtip. It is the main operating control surface of the aircraft. The rolling torque generated by the pilot's manipulation of the differential deflection of the left and right control surfaces can make the aircraft perform a rolling maneuver.

[0003] Reference Figure 1 , Figure 2 The rudder surface 1 is generally composed of a skin 11, an inner layer of foam 12, an installation angle rib 14 and two connecting shafts 13. The skin 11 is formed by curing prepreg, and the skin 11 is coated on the inner layer of foam 12; the inner layer of foam 12 is connected to the wing at both ends in the length direction through a connecting shaft 13, and the installation angle rib 14 is fixed on the skin 11. The angle rib connecting part 141 on the installation angle rib 14 is exposed outside the skin 11, and the angle rib connecting part 141 is provided with an angle rib connecting hole 142 for connecting to the wing.

[0004] The connection shafts and installation ribs of the rudder products have high requirements for positional accuracy. Therefore, during the production of the rudder products, the molds need to accurately locate the connection shafts and installation ribs to ensure that the rudder products can be accurately installed and fixed to the wings. However, most molds for rudder products are used to produce the skin, installation ribs and other parts before assembly. The production process requires multiple molds and a large number of metal parts and standard parts, which is costly, complicated, and has poor assembly accuracy. Utility Model Content

[0005] In order to achieve high-precision integrated molding of the rudder surface, the present application provides a molding die for integrally molding the rudder surface.

[0006] The present application provides a mold for integrally forming a rudder surface using the following technical solution:

[0007] A die pressing mold for integrally forming a rudder surface, comprising an upper die, a middle die and a lower die that are matched with each other, a cavity is formed between the upper die, the middle die and the lower die, and the inner side wall of the cavity is adapted to the shape of the rudder surface; lower core molds are respectively arranged on the lower die and located on both sides of the cavity, and an upper core mold is arranged on the upper die corresponding to the lower core mold;

[0008] The lower core mold includes a rotating shaft positioning block and a connecting block, the rotating shaft positioning block is arranged on the lower mold, the connecting block is arranged on the rotating shaft positioning block, and the connecting block cooperates with the rotating shaft positioning block to position the connecting rotating shaft; the lower mold is provided with a corner rib positioning square hole for accommodating the corner rib connecting part, and the lower mold is provided with a corner rib positioning piece for positioning the corner rib connecting part.

[0009] By adopting the above technical solution, the integrated molding of the rudder surface is realized, the complicated assembly procedure is avoided, the molding efficiency of the rudder surface products is improved, and the precise positioning of the installation angle ribs and the connecting shaft can be guaranteed, thereby improving the molding accuracy of the rudder surface.

[0010] In a specific feasible implementation scheme, the rotating shaft positioning block is provided with a positioning semicircular groove 1 and a connecting groove, the connecting block is provided with a positioning semicircular groove 2 and a connecting protrusion, the connecting protrusion is inserted into the side wall of the connecting groove, and the positioning semicircular groove 1 cooperates with the positioning semicircular groove 2 to accommodate the connecting rotating shaft.

[0011] In a specific feasible implementation scheme, the positioning semicircular groove 1 and the positioning semicircular groove 2 are semicircular with equal inner diameters in the vertical direction, and the inner diameter of one end of any positioning semicircular groove 1 and / or any positioning semicircular groove 2 close to the inner wall of the cavity is enlarged and formed with a step portion.

[0012] By adopting the above technical solution, precise positioning of the installation shaft is achieved through positioning semicircular groove one and positioning semicircular groove two; by setting the step portion, the connecting shaft can be adaptively inserted into the side walls of positioning semicircular groove one and positioning semicircular groove two.

[0013] In a specific possible implementation manner, each of the rotating shaft positioning blocks is slidably disposed on the lower mold, and the moving direction of each of the rotating shaft positioning blocks is parallel to the length direction of the inner side wall of the cavity.

[0014] In a specific possible implementation scheme, at least one movable pin is provided on the side wall of the rotating shaft positioning block facing the lower mold, and the lower mold is provided with a core mold moving groove for allowing the movable pin to move.

[0015] By adopting the above technical solution, by making the rotating shaft positioning block slidably connected with the lower mold, lateral pressure is provided for the molding of the rudder surface product, which is beneficial to improving the molding effect of the rudder surface product.

[0016] In a specific feasible implementation scheme, the inner diameter of the corner rib positioning square hole at one end away from the cavity is enlarged and a reserved groove is formed, the corner rib connecting portion passes through the corner rib positioning square hole to extend into the side wall of the reserved groove, and the corner rib positioning piece is arranged in the side wall of the reserved groove to position the corner rib connecting portion.

[0017] In a specific possible implementation scheme, the corner rib positioning member includes a fixed block and a fixed pin, the fixed block is arranged in the side wall of the reserved groove, a positioning matching hole is arranged on the fixed block, and the fixing pin passes through the corner rib connecting hole to be inserted into the side wall of the positioning matching hole.

[0018] By adopting the above technical solution, accurate positioning of the installed corner ribs is achieved.

[0019] In a specific possible implementation manner, a mounting screw is connected between the middle mold and the lower mold, and a mounting nut is threadedly connected to the mounting screw.

[0020] By adopting the above technical solution, the middle mold is fixedly connected to the lower mold, which facilitates the rapid installation and rapid disassembly of the middle mold.

[0021] In a specific possible implementation manner, a plurality of guide sleeves are arranged on the upper die, and a guide column is arranged on the lower die and / or the middle die corresponding to any of the guide sleeves.

[0022] By adopting the above technical solution, accurate mold closing between the upper mold, the lower mold and the middle mold is achieved, which helps to improve the molding accuracy of the rudder surface.

[0023] In a specific possible implementation manner, at least one temperature measuring hole is respectively provided on the upper die and the lower die, and the temperature measuring hole is communicated with the cavity.

[0024] By adopting the above technical solution, it is convenient for operators to detect the temperature inside the cavity and ensure that the curing temperature is appropriate, which helps to ensure the molding effect.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The integrated molding of the rudder surface is realized, which avoids complicated assembly procedures, improves the molding efficiency of the rudder surface products, and can ensure the precise positioning of the installation angle ribs and the connecting shaft, thereby improving the molding accuracy of the rudder surface;

[0027] 2. The upper mold, middle mold and lower mold have high mold closing accuracy, and can be closed or disassembled quickly and conveniently, which improves the production efficiency and demoulding efficiency of rudder products. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the rudder product in the background technology of this application;

[0029] Figure 2 It is a schematic diagram of the exploded structure of the rudder product in the background technology of this application;

[0030] Figure 3It is a schematic diagram of the exploded structure of the molding die for integrally forming the rudder surface in the embodiment of the present application;

[0031] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0032] Figure 5 is a partial cross-sectional schematic diagram for illustrating an angle rib positioning member in an embodiment of the present application;

[0033] Figure 6 It is a partial structural schematic diagram for showing the rotation shaft positioning block in the embodiment of the present application;

[0034] Figure 7 This is a schematic diagram of the structure of the shaft positioning block used to illustrate the embodiment of the present application;

[0035] Figure 8 It is a structural schematic diagram of the connection block in the embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. Rudder surface; 11. Skin; 12. Inner foam; 13. Connecting shaft; 14. Installing corner rib; 141. Corner rib connecting part; 142. Corner rib connecting hole; 2. Upper mold; 21. Guide sleeve; 3. Middle mold; 31. Threaded hole; 4. Lower mold; 41. Corner rib positioning square hole; 42. Corner rib positioning piece; 421. Fixed matching block; 4211. Positioning matching hole; 422. Fixed pin; 43. Core mold moving groove; 44. Reserved groove; 5. Lower core mold; 51. Shaft positioning block; 511. Moving pin; 512. Positioning semicircular groove one; 513. Connecting groove; 52. Connecting block; 521. Positioning semicircular groove two; 522. Connecting protrusion; 6. Upper core mold; 7. Guide column; 8. Temperature measuring hole; 9. Step part. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the present utility model. Obviously, the described embodiment is a part of the embodiment of the present utility model, not all of the embodiments. Based on the described embodiment of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs.

[0039] The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular form of "a", "an" or "the" and other similar words do not indicate a quantity limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprise" include the features, wholes, steps, operations, elements and / or components listed after "include" or "comprise", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] The present application embodiment discloses a molding die for integrally forming a rudder surface. Figure 3-8 This application is described in further detail.

[0041] Reference Figure 3 The mold pressing mold for integrally forming the rudder surface includes an upper mold 2, a middle mold 3, and a lower mold 4 that are matched with each other. The middle mold 3 is fixed at one end of the lower mold 4 in the width direction. A cavity is formed between the upper mold 2, the middle mold 3, and the lower mold 4, and the cavity is adapted to the shape of the rudder surface. A lower core mold 5 is provided on the lower mold 4 and on both sides of the length direction of the cavity, and an upper core mold 6 is provided on the upper mold 2 and on both sides of the length direction of the cavity, and the upper core mold 6 is provided correspondingly to the lower core mold 5. After the mold is closed, one end of the lower surface of the upper mold 2 in the width direction is fitted with the upper surface of the lower mold 4, and the other end of the lower surface of the upper mold 2 in the width direction is fitted with the upper surface of the middle mold 3, and the upper core mold 6 is abutted and fitted with the lower core mold 5 in a one-to-one correspondence. The lower core mold includes a shaft positioning block 51 and a connecting block 52, and the moving block cooperates with the connecting block 52 to position and connect the shaft 13.

[0042] Reference Figure 3-Figure 5 The lower mold 4 is provided with a corner rib positioning square hole 41 for accommodating the corner rib connecting portion, and the lower mold 4 is provided with a corner rib positioning piece 42 for positioning and installing the corner rib 14.

[0043] The operator lays the prepreg on the inner wall of the cavity of the lower mold 4, and inserts the corner rib connecting part of the installed corner rib into the corner rib positioning square hole 41, and fixes the installed corner rib 14 through the corner rib positioning piece 42; then installs the two shaft positioning blocks 51 on the lower mold 4, and installs the two connecting shafts on the inner layer foam respectively, and then places the inner layer foam 12 on the prepreg, and the connecting shaft is correspondingly located on the shaft positioning block 51, and then the connecting block 52 is fixed with the movable connecting block 52 to position the connecting shaft 13; the operator then installs the middle mold 3 on the lower mold 4, and lays the prepreg on the inner wall of the cavity of the upper mold 2, and then assembles the upper mold 2 and the lower mold 4; after the mold assembly is completed, the operator transfers the mold to the press for heating and curing, and then disassembles and separates the upper mold 2, the middle mold 3, and the two connecting blocks 52 in turn, and obtains the rudder surface product after demolding.

[0044] Reference Figure 5 A reserved groove 44 is provided on the side wall of the lower mold 4 and is located at the corner rib positioning square hole 41. The reserved groove 44 is communicated with the corner rib positioning square hole 41, and a corner rib positioning member 42 is provided in the side wall of the reserved groove 44. The corner rib connecting portion passes through the corner rib positioning square hole 41 to extend into the side wall of the reserved groove 44, and the corner rib positioning member 42 is connected to the corner rib connecting portion to position and install the corner rib 14. The corner rib positioning member 42 includes a fixed matching block 421 and a fixed pin 422. The fixed matching block 421 is located in the side wall of the reserved groove 44, and a positioning matching hole 4211 is provided on the fixed matching block 421 corresponding to the corner rib connecting hole 142. The fixed pin 422 passes through the corner rib connecting hole 142 and is inserted into the side wall of the positioning matching hole 4211.

[0045] Reference Figure 6 Two movable pins 511 are arranged on the side wall of each shaft positioning block 51 facing the lower mold 4, and the lower mold 4 is provided with a core mold moving groove 43 for the movable pins 511 to move. Each movable pin 511 is correspondingly slidably connected to the side wall of the corresponding core mold moving groove 43, and the moving direction of the movable pin 511 is parallel to the length direction of the inner wall of the cavity.

[0046] Reference Figure 7 and Figure 8, each rotating shaft positioning block 51 is provided with a positioning semicircular groove 1 512 and two connecting grooves 513, each connecting block 52 is provided with a positioning semicircular groove 2 521 corresponding to the positioning semicircular groove 1 512, and a connecting protrusion 522 is provided corresponding to the connecting groove 513. When the connecting block 52 is fixed to the rotating shaft positioning block 51, each connecting protrusion 522 is correspondingly inserted into the side wall of the corresponding connecting groove 513. The positioning semicircular groove 1 512 and the positioning semicircular groove 2 521 are semicircular with equal inner diameters, and the positioning semicircular groove 1 512 and the positioning semicircular groove 2 521 cooperate to accommodate the connecting rotating shaft 13. In addition, the inner diameter of each positioning semicircular groove 1 512 and each positioning semicircular groove 2 521 close to the cavity is enlarged and formed with a step portion 9.

[0047] Reference Figure 3 The middle mold 3 and the lower mold 4 are respectively provided with a plurality of threaded holes 31, each of which is threadedly fixed with a mounting screw (not shown), and the middle mold 3 is connected and fixed to the lower mold 4 through the mounting screws, and the mounting screws are threadedly connected with mounting nuts (not shown). The mounting screws and mounting nuts are used to realize the detachable connection between the middle mold 3 and the lower mold 4, so as to facilitate the quick installation and quick removal of the middle mold 3.

[0048] Reference Figure 3 , four guide sleeves 21 are embedded in the upper mold 2. The lower mold 4 and the middle mold 3 are respectively provided with guide pillars 7 corresponding to the guide sleeves 21. When the mold is closed, the guide pillars 7 are inserted into the guide sleeves 21 to achieve accurate positioning and closing of the upper mold 2.

[0049] Reference Figure 3 , four temperature measuring holes 8 are provided on the upper mold 2 and the lower mold 4. During molding, the operator can monitor the temperature in the cavity through the temperature measuring holes 8 to ensure the accuracy of the mold temperature.

[0050] The implementation principle of a molding die for integrally forming a rudder surface in the embodiment of the present application is as follows:

[0051] The operator lays the prepreg on the inner wall of the cavity of the lower mold 4, and inserts the corner rib connection part of the corner rib 14 into the corner rib positioning square hole 41, installs the fixing block 421 into the reserved groove 44, and makes the positioning matching hole 4211 correspond to the corner rib connection hole 142, and inserts the fixing pin 422 through the corner rib connection hole 142 and into the side wall of the positioning matching hole 4211 to fix the corner rib 14;

[0052] Install two rotating shaft positioning blocks 51 on the lower mold 4, and move the two rotating shaft positioning blocks 51 away from the prepreg; install the connecting rotating shaft 13 at both ends of the inner foam 12 in the length direction, and then place the inner foam 12 on the prepreg; move the two rotating shaft positioning blocks 51 towards the inner foam 12, so that the connecting rotating shaft 13 is located on the inner side wall of the positioning semicircular groove 1 512; and then install each connecting block 52 on the rotating shaft positioning block 51 to fix the connecting rotating shaft 13;

[0053] The operator then places the middle mold 3 on the lower mold 4, connects the middle mold 3 and the lower mold 4 by installing screws, and then tightens the installation nuts to fix the middle mold 3 and the lower mold 4;

[0054] The operator lays another piece of prepreg on the inner wall of the cavity of the upper mold 2, and then assembles the upper mold 2 to the lower mold 4 through the cooperation and positioning of the guide pin 7 and the guide sleeve 21, completing the mold assembly;

[0055] After the mold is assembled, the operator transfers the mold to a press to heat and solidify it, and then disassembles and separates the upper mold 2, the middle mold 3, the two connecting blocks 52 and the two rotating shaft positioning blocks 51 in sequence, and obtains the rudder surface product after demolding.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A molding die for integrally forming a rudder surface, characterized in that: It comprises an upper mold (2), a middle mold (3) and a lower mold (4) which are matched with each other, a cavity is formed between the upper mold (2), the middle mold (3) and the lower mold (4), and the inner side wall of the cavity is adapted to the outer shape of the rudder surface (1); lower core molds (5) are respectively arranged on the lower mold (4) and located on both sides of the cavity, and an upper core mold (6) is arranged on the upper mold (2) corresponding to the lower core mold (5); The lower core mold (5) comprises a rotating shaft positioning block (51) and a connecting block (52); the rotating shaft positioning block (51) is arranged on the lower mold (4); the connecting block (52) is arranged on the rotating shaft positioning block (51), and the connecting block (52) cooperates with the rotating shaft positioning block (51) to position the connecting rotating shaft (13); the lower mold (4) is provided with a corner rib positioning square hole (41) for accommodating a corner rib connecting portion (141), and the lower mold (4) is provided with a corner rib positioning piece (42) for positioning the corner rib connecting portion (141).

2. The molding die for integrally forming a control surface according to claim 1, characterized in that: The rotating shaft positioning block (51) is provided with a first positioning semicircular groove (512) and a connecting groove (513); the connecting block (52) is provided with a second positioning semicircular groove (521) and a connecting protrusion (522); the connecting protrusion (522) is inserted into the side wall of the connecting groove (513); the first positioning semicircular groove (512) cooperates with the second positioning semicircular groove (521) to accommodate the connecting rotating shaft (13).

3. The molding die for integrally forming a rudder surface according to claim 2, characterized in that: The positioning semicircular groove 1 (512) and the positioning semicircular groove 2 (521) are semicircular with equal inner diameters in the vertical direction, and the inner diameter of one end of any positioning semicircular groove 1 (512) and / or any positioning semicircular groove 2 (521) close to the inner wall of the cavity is increased and a step portion (9) is formed.

4. The molding die for integrally forming a control surface according to claim 1, characterized in that: Each of the rotating shaft positioning blocks (51) is slidably arranged on the lower mold (4), and the moving direction of each of the rotating shaft positioning blocks (51) is parallel to the length direction of the inner side wall of the mold cavity.

5. The molding die for integrally forming a rudder surface according to claim 4, characterized in that: At least one movable pin (511) is arranged on the side wall of the rotating shaft positioning block (51) facing the lower mold (4), and a core mold moving groove (43) for allowing the movable pin (511) to move is arranged on the lower mold (4).

6. The molding die for integrally forming a control surface according to claim 1, characterized in that: The inner diameter of one end of the corner rib positioning square hole (41) away from the mold cavity is increased and a reserved groove (44) is formed, the corner rib connecting portion (141) passes through the corner rib positioning square hole (41) to extend into the side wall of the reserved groove (44), and the corner rib positioning piece (42) is arranged in the side wall of the reserved groove (44) to position the corner rib connecting portion (141).

7. The molding die for integrally forming a rudder surface according to claim 6, characterized in that: The corner rib positioning member (42) comprises a fixing block (421) and a fixing pin (422); the fixing block (421) is arranged in the side wall of the reserved groove (44); a positioning matching hole (4211) is arranged on the fixing block (421); and the fixing pin (422) passes through the corner rib connecting hole (142) to be inserted into the side wall of the positioning matching hole (4211).

8. The molding die for integrally forming a control surface according to claim 1, characterized in that: A mounting screw is connected between the middle die and the lower die (4), and a mounting nut is threadedly connected to the mounting screw.

9. The molding die for integrally forming a control surface according to claim 1, characterized in that: A plurality of guide sleeves (21) are arranged on the upper die (2), and a guide column (7) is arranged on the lower die (4) and / or the middle die (3) corresponding to any of the guide sleeves (21).

10. The molding die for integrally forming a control surface according to claim 1, characterized in that: At least one temperature measuring hole (8) is respectively provided on the upper die (2) and the lower die (4), and the temperature measuring hole (8) is communicated with the mold cavity.

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