A mould structure for manufacturing an aircraft landing gear

Abstract

The utility model discloses a mould structure for manufacturing aircraft landing gear, including upper die and lower die, the bottom surface fixed of lower die has lower support frame, and the bottom of lower support frame is installed with a plurality of trolley wheels, the top of lower die is equipped with upper die, and the top surface fixed of upper die has upper support frame, and the top of upper support frame is installed with a plurality of upper trolley wheels, the left and right sides of upper support frame are all fixed with vertical fixed plate, and the lateral wall on vertical fixed plate is all fixed with side connecting seat, and the lateral wall middle part of side connecting seat is shaped with the hoist connecting column that extends outward horizontally. Its upper die is installed on upper support frame, and the upper trolley wheel is installed on upper support frame, so that it can push and realize the movement of upper die, and it is convenient to push, need not hoist, and the moving effect is good, simultaneously, and its upper die and two upper die assembling blocks constitute upper die main body, and it can disassemble upper die assembling block when demolding, and it is convenient to demold, guarantees the forming quality of the landing gear of forming.

Description

Technical Field

[0001] This utility model relates to the field of aircraft processing and manufacturing equipment technology, and more specifically to a mold structure for manufacturing aircraft landing gear. Background Technology

[0002] eVTOL aircraft (electric vertical takeoff and landing aircraft) are aircraft powered by electric motors that are capable of vertical takeoff and landing. They are mainly used in short- and medium-haul scenarios such as low-altitude logistics, passenger transportation, and emergency rescue.

[0003] In existing eVTOL aircraft, the landing gear is generally made of glass fiber and resin or carbon fiber and resin, which are stacked and fixed along the corresponding molding cavities of the upper and lower molds to form the corresponding half shells. After stacking, the upper and lower molds need to be pressed together so that the corresponding two half shells are bonded and formed and fixed.

[0004] However, existing upper molds generally require manual lifting or crane hoisting, which is cumbersome to operate. Moreover, they also require manual or crane hoisting for handling, making them difficult to move and inconvenient to operate, resulting in less than ideal performance.

[0005] Meanwhile, because the upper part of the molding component at the end of the landing gear is tilted inward and upward during molding, forming a negative angle, when the upper mold is lifted vertically, the molding component will be lifted along with it, making demolding impossible. Moreover, since the middle molding part of the molding component is a relatively thin rod, when the molding component is separated from the upper mold, the flange at the end of the landing gear needs to be deformed outward before it can be separated. However, when the flange is deformed outward, it will cause the rest of the molding component to move together, which can easily cause damage to the thinner parts such as the middle molding part of the molding component (landing gear). Demolding can only be achieved by breaking the upper mold, resulting in high manufacturing costs. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a mold structure for manufacturing aircraft landing gear. Its upper mold is installed on an upper support frame, and the upper support frame is equipped with push wheels, which can push the upper mold to move it. The pushing is convenient, no lifting is required, and the movement effect is good. At the same time, the upper mold and two upper mold assembly blocks form the upper mold body. The upper mold assembly blocks can be disassembled during demolding, which facilitates demolding and ensures the forming quality of the formed landing gear.

[0007] The solution of this utility model to the aforementioned technical problem is:

[0008] A mold structure for manufacturing aircraft landing gear includes an upper mold and a lower mold, wherein a lower support frame is fixed to the bottom surface of the lower mold, and a plurality of push wheels are installed at the bottom of the lower support frame.

[0009] An upper mold is provided above the lower mold, and an upper support frame is fixed on the top surface of the upper mold. Multiple push wheels are installed on the top of the upper support frame.

[0010] Vertical fixing plates are fixed on both the left and right sides of the upper support frame. Side connecting seats are fixed on the outer side walls of the vertical fixing plates. A lifting connecting column extending laterally outward is formed in the middle of the outer side wall of the side connecting seat.

[0011] The bottom surface of the bottom horizontal frame of the upper support frame is fixed with an upper mold. The left and right sides of the front wall of the bottom horizontal frame are both fixed with forward-extending front connecting frames by bolts. The bottom surface of the front connecting frames is fixed with an upper mold assembly block. The middle of the rear wall of the two upper mold assembly blocks is formed with a rear extension protrusion. The rear extension protrusion is inserted into the mounting slot formed on the front wall of the left or right side of the upper mold. The two cooperate with each other, and the rear wall of the two upper mold assembly blocks is close to the front wall of the upper mold.

[0012] The inner walls on the left and right sides of the mounting slot are inclined surfaces. The rear ends of the two inclined surfaces are close to each other and the front ends are far apart. The left and right side walls of the rear extension protrusion are in close contact with the corresponding inclined surfaces, and the rear wall surface of the rear extension protrusion presses against the rear wall surface of the mounting slot.

[0013] The top surface of the lower mold is formed with a left-right extending lower elongated forming groove in the middle, and the left and right ends of the lower elongated forming groove are formed with forward extending lower elongated forming grooves. The inner wall surface of the front end of the lower elongated forming groove is formed with a downward and outward obliquely extending curved surface.

[0014] The bottom surface of the upper mold is formed with an upper elongated forming groove extending to the left and right. The left and right ends of the upper elongated forming groove are formed with an upper extending forming groove extending forward. The front end of the upper extending forming groove is connected to and corresponds to the front forming groove formed in the bottom surface of the upper mold assembly block. The inner side wall of the front end of the front forming groove is formed with an upper curved surface. The front end of the upper curved surface is inclined backward and upward.

[0015] The lower elongation forming groove corresponds vertically to the upper elongation forming groove, and the lower extension forming groove corresponds vertically to the corresponding upper extension forming groove and the front forming groove.

[0016] The outstanding effect of this utility model is:

[0017] 1. It uses an upper mold and two upper mold assembly blocks to form the upper mold body, so that when demolding, the two upper mold assembly blocks can be disassembled first, which facilitates demolding and ensures the quality of the formed landing gear.

[0018] 2. Its upper mold is installed on the upper support frame, and the lower mold is installed on the lower support frame. The upper support frame is equipped with upper push wheels, and the lower support frame is equipped with push wheels, so that the upper mold and the lower mold can be easily pushed and moved as needed, realizing transportation and greatly reducing the difficulty of transportation.

[0019] 3. The two lifting connecting columns installed on its upper support frame can facilitate crane lifting, thereby facilitating the mold closing operation. Attached Figure Description

[0020] Figure 1 This is a partial structural schematic diagram of the present invention;

[0021] Figure 2 This is a partially exploded view of the utility model;

[0022] Figure 3 This is a partial structural diagram of the upper support frame of this utility model;

[0023] Figure 4 This is a partial structural diagram of the relationship between the upper support frame and the upper mold of this utility model;

[0024] Figure 5 This is a partial structural diagram of the upper mold and the two upper mold assembly blocks of this utility model;

[0025] Figure 6 yes Figure 5 A schematic diagram of the local structure from a different angle. Detailed Implementation

[0026] For example, see below. Figures 1 to 6 As shown, a mold structure for manufacturing aircraft landing gear includes an upper mold 10 and a lower mold 20. A lower support frame 30 is fixed to the bottom surface of the lower mold 20, and a plurality of pusher wheels 31 are installed at the bottom of the lower support frame 30.

[0027] An upper mold 10 is provided above the lower mold 20. An upper support frame 40 is fixed on the top surface of the upper mold 10. Multiple push wheels 41 are installed on the top of the upper support frame 40.

[0028] This structure allows the upper mold 10 and lower mold 20 to be moved by pushing during the internal installation of the semi-shell, facilitating handling and operation without the need for a crane, greatly reducing the difficulty of operation.

[0029] Furthermore, vertical fixing plates are fixed on both the left and right sides of the upper support frame 40, and side connecting seats 42 are fixed on the outer side walls of the vertical fixing plates. A lifting connecting column 43 extending laterally outward is formed in the middle of the outer side wall of the side connecting seat 42.

[0030] The lifting connecting column 43 facilitates the smooth lifting of the upper mold 10 by connecting it to the upper support frame 40 during mold closing, resulting in a good lifting effect.

[0031] Furthermore, the bottom surface of the bottom horizontal frame 44 of the upper support frame 40 is fixed with an upper mold 10. The left and right sides of the front wall of the bottom horizontal frame 44 are both fixed with forward-extending front connecting frames 45 by bolts. The bottom surface of the front connecting frame 45 is fixed with an upper mold assembly block 50. The middle of the rear wall of the two upper mold assembly blocks 50 is formed with a rear extension protrusion 51. The rear extension protrusion 51 is inserted into the mounting slot 21 formed on the front wall of the left or right side of the upper mold 10. The two cooperate with each other, and the rear wall of the two upper mold assembly blocks 50 is close to the front wall of the upper mold 10.

[0032] Furthermore, the inner walls on the left and right sides of the mounting slot 21 are inclined surfaces, with the rear ends of the two inclined surfaces close to each other and the front ends far apart. The left and right side walls of the rear extension protrusion 51 are in close contact with the corresponding inclined surfaces, and the rear wall surface of the rear extension protrusion 51 presses against the rear wall surface of the mounting slot 21.

[0033] Furthermore, the upper mold 10 has multiple vertical through holes 1 formed on it.

[0034] Furthermore, the lower mold 20 has a left-right extending lower elongated forming groove 22 formed in the middle of its top surface, and the left and right ends of the lower elongated forming groove 22 have forward extending lower elongated forming grooves 23 formed, and the inner wall surface of the front end of the lower elongated forming groove 23 has a downward and outward obliquely extending curved surface 24 formed; the lower elongated forming groove 22, the lower elongated forming groove 23 and the curved surface 24 constitute the lower mold cavity;

[0035] The upper mold 10 has an upper elongated forming groove 11 extending to the left and right in the middle of its bottom surface. The upper elongated forming groove 11 has an upper extending forming groove 12 extending forward in the left and right ends. The front end of the upper extending forming groove 12 communicates with and corresponds to the front forming groove 510 formed in the middle of the bottom surface of the upper mold assembly block 50. The inner side wall of the front end of the front forming groove 510 has an upper curved surface 52 formed. The front end of the upper curved surface 52 is inclined backward and upward.

[0036] The upper elongation forming groove 11, the upper extension forming groove 12, the front forming groove 510 and the upper curved surface 52 form the upper mold cavity;

[0037] The lower elongation forming groove 22 corresponds vertically to the upper elongation forming groove 11, and the lower extension forming groove 23 corresponds vertically to the corresponding upper extension forming groove 12 and the front forming groove 510.

[0038] The upper mold cavity and the lower mold cavity correspond to each other.

[0039] Furthermore, the rear part of the top surface of the lower mold 20 is formed with a left-right extending rear protrusion extension 240, and the rear part of the bottom surface of the upper mold 10 is formed with a left-right extending rear groove. The rear protrusion extension 240 is inserted into and cooperates with the corresponding rear groove.

[0040] Furthermore, the top surface of the lower mold 20 is fixed with a plurality of pressing pads 2, and the bottom surface of the upper mold 10 is fixed with a plurality of second pressing pads 3. The top surface of the pressing pads 2 presses against the corresponding position on the bottom surface of the upper mold 10, and the bottom surface of the second pressing pads 3 presses against the corresponding position on the top surface of the lower mold 20.

[0041] Furthermore, the top surface of the rear protrusion extension 240 is formed with multiple lower positioning holes 25 on the left, middle and right sides, and the bottom surface of the corresponding rear groove is formed with multiple upper positioning holes 16 on the left, middle and right sides. The upper positioning holes 16 and the corresponding lower positioning holes 25 are aligned vertically and correspond to each other.

[0042] When the mold is closed, a positioning pin can be placed on the lower positioning hole 25. When the mold is closed, the upper part of the positioning pin is inserted into the corresponding upper positioning hole 16 to achieve mold closing positioning and ensure the mold closing effect.

[0043] In this embodiment, after the mold is closed and during demolding, because the front end of the upper curved surface 52 is inclined backward and upward, this structure directly lifts the upper mold 10, such as... Figure 5 and 6 As shown, the front end of the upper curved surface 52 is inclined backward and upward at a negative angle. When the upper mold assembly block 50 and the upper mold 10 are demolded as a whole, they cannot be directly lifted for demolding. Instead, the front connecting frame 45 at the upper mold assembly block 50 must first be separated from the upper support frame 40. Then, the upper mold assembly block 50 and the corresponding front connecting frame 45 are lifted upward. During partial demolding, the molding component at the upper curved surface 52 can be separated by slight deformation. During this process, the landing gear molding component is still between the upper mold 10 and the lower mold 20. Therefore, the slight deformation at the upper curved surface 52 will not affect the linkage between the landing gear molding component between the upper mold 10 and the lower mold 20, so that the landing gear molding component will not be damaged after the upper mold assembly block 50 and the corresponding front connecting frame 45 are separated. Then, the upper mold 10 is lifted to achieve demolding, and the demolding effect is good.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mold structure for manufacturing aircraft landing gear, comprising an upper mold (10) and a lower mold (20), characterized in that: The bottom surface of the lower mold (20) is fixed with a lower support frame (30), and multiple push wheels (31) are installed at the bottom of the lower support frame (30). An upper mold (10) is provided above the lower mold (20). An upper support frame (40) is fixed on the top surface of the upper mold (10). Multiple push wheels (41) are installed on the top of the upper support frame (40). The upper support frame (40) is fixed with vertical fixing plates on both the left and right sides. Side connecting seats (42) are fixed on the outer side walls of the vertical fixing plates. A lifting connecting column (43) extending outward is formed in the middle of the outer side wall of the side connecting seat (42).

2. The mold structure for manufacturing aircraft landing gear according to claim 1, characterized in that: The bottom surface of the bottom horizontal frame (44) of the upper support frame (40) is fixed with an upper mold (10). The left and right sides of the front wall of the bottom horizontal frame (44) are both fixed with forward-extending front connecting frames (45) by bolts. The bottom surface of the front connecting frame (45) is fixed with an upper mold assembly block (50). The middle of the rear wall of the two upper mold assembly blocks (50) is formed with a rear extension protrusion (51). The rear extension protrusion (51) is inserted into the mounting slot (21) formed on the front wall of the left or right side of the upper mold (10). The two cooperate with each other, and the rear wall of the two upper mold assembly blocks (50) is close to the front wall of the upper mold (10).

3. A mold structure for manufacturing aircraft landing gear according to claim 2, characterized in that: The inner walls of the left and right sides of the mounting slot (21) are inclined surfaces. The rear ends of the two inclined surfaces are close to each other and the front ends are far apart. The left and right side walls of the rear extension protrusion (51) are in close contact with the corresponding inclined surfaces, and the rear wall surface of the rear extension protrusion (51) is pressed against the rear wall surface of the mounting slot (21).

4. The mold structure for manufacturing aircraft landing gear according to claim 1, characterized in that: The upper mold (10) has multiple vertical through holes (1) formed on it.

5. A mold structure for manufacturing aircraft landing gear according to claim 1, characterized in that: The lower mold (20) has a left-right extending lower elongated forming groove (22) formed in the middle of the top surface, and the left and right ends of the lower elongated forming groove (22) have forward extending lower elongated forming grooves (23) formed, and the inner wall surface of the front end of the lower elongated forming groove (23) has a downward and outward obliquely extending curved surface (24). The upper mold (10) has an upper elongated forming groove (11) extending to the left and right in the middle of its bottom surface. The upper elongated forming groove (11) has an upper extending forming groove (12) extending forward in the left and right ends. The front end of the upper extending forming groove (12) is connected to and corresponds to the front forming groove (510) formed in the middle of the bottom surface of the upper mold assembly block (50). The front end of the front forming groove (510) has an upper curved surface (52) formed on the inner side wall. The front end of the upper curved surface (52) is inclined backward and upward. The lower elongation forming groove (22) corresponds to the upper elongation forming groove (11) vertically, and the lower extension forming groove (23) corresponds to the corresponding upper extension forming groove (12) and the front forming groove (510) vertically.

6. A mold structure for manufacturing aircraft landing gear according to claim 1, characterized in that: The lower mold (20) has a rear protrusion extension (240) extending to the left and right on the rear part of the top surface, and the upper mold (10) has a rear groove extending to the left and right on the rear part of the bottom surface. The rear protrusion extension (240) is inserted into the corresponding rear groove and cooperates with it.

7. A mold structure for manufacturing aircraft landing gear according to claim 1, characterized in that: The top surface of the lower mold (20) is fixed with a plurality of pressing pads (2), and the bottom surface of the upper mold (10) is fixed with a plurality of second pressing pads (3). The top surface of the pressing pads (2) presses against the corresponding position of the bottom surface of the upper mold (10), and the bottom surface of the second pressing pads (3) presses against the corresponding position of the top surface of the lower mold (20).

8. A mold structure for manufacturing aircraft landing gear according to claim 6, characterized in that: The top surface of the rear protrusion extension (240) is provided with multiple lower positioning holes (25) on the left, middle and right sides, and the bottom surface of the corresponding rear groove is provided with multiple upper positioning holes (16) on the left, middle and right sides. The upper positioning holes (16) and the corresponding lower positioning holes (25) are aligned vertically and correspond to each other.

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