A molding die frame for landing gear strut

Abstract

The invention discloses a forming mold frame for a landing gear strut, which belongs to the technical field of forming mold frames; the mold frame comprises an upper mold, a lower mold, an upper mold frame and a lower mold frame; the upper mold frame is arranged on the lower mold frame; the upper mold is arranged under the upper mold frame, and the upper mold and the upper mold frame are detachably connected; the lower mold is arranged on the lower mold frame, and the lower mold and the lower mold frame are detachably connected; the mold frame also comprises a limiting component and a locking component; the limiting component and the locking component are arranged on the upper mold and the lower mold; two groups of limiting components and locking components are symmetrically arranged on a single side surface of the lower mold; the limiting component is used to lock the lower mold on the lower mold frame, the limiting component is fixedly connected to the outer side surface of the lower mold, the limiting component is partially embedded in the lower mold frame, and the limiting component can be selectively clamped with the lower mold frame; the locking component is connected to the limiting component, and the two groups of locking components symmetrically located on the same side surface can be fixedly clamped; the mold on the mold frame can be quickly installed and disassembled, and the replacement time can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of forming mold frames, and more specifically, relates to a forming mold frame for a landing gear strut. Background Art

[0002] Aircraft landing gear is a key component for military and civilian aircraft to take off and land. The landing gear includes a landing gear strut, the first end of which is hinged on the aircraft and the second end of which carries the wheels. Due to the shape and structure of the landing gear strut, it is generally produced using a forming mold frame during production.

[0003] The mold frame is the support of the mold. For example, the part that combines and fixes the various parts of the mold according to a certain rule and position on the die-casting machine and enables the mold to be installed on the die-casting machine is called the mold frame. It is composed of the ejection mechanism, the guide mechanism, the pre-reset mechanism, the mold foot pad, and the seat plate, and the mold frame is an inseparable part of the mold. The precision requirements of the mold frame will be determined according to different levels and product requirements. The mold frame is a semi-finished product of the mold, composed of various steel plates and parts. The mold frame can be said to be the skeleton of the entire mold.

[0004] During use, the existing landing gear strut forming mold frame usually has a slot on the mold frame, and the mold and the slot are connected by interference fit. Although the interference fit is stable, it is inconvenient to repair after long-term use, the replacement time is long, and the subsequent maintenance cost is high. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a molding die frame for a landing gear strut, which can realize rapid installation and removal of the mold on the die frame, reduce replacement time, facilitate maintenance of the mold and the die frame, and reduce maintenance costs.

[0006] The present invention discloses a molding die frame for a landing gear strut, comprising an upper die, a lower die, an upper die frame and a lower die frame. The upper die frame is arranged on the lower die frame. The upper die is arranged below the upper die frame, and the upper die frame and the upper die frame are detachably connected. The lower die is arranged on the lower die frame, and the lower die frame and the lower die frame are detachably connected. The molding die frame further comprises a limit assembly and a locking assembly. The limit assembly and the locking assembly are arranged on the upper die and the lower die. Two sets of limit assemblies and locking assemblies are symmetrically arranged on a single side surface of the lower die.

[0007] The limit assembly is used to lock the lower die on the lower die frame. The limit assembly is fixedly connected to the outer side of the lower die. The limit assembly is partially embedded in the lower die frame. The limit assembly can be selectively connected with the lower die frame.

[0008] The locking assembly is connected to the limiting assembly, and two groups of locking assemblies symmetrically located on the same side can be fixedly connected.

[0009] As a further improvement of the present invention, a mold groove is provided on the lower mold frame. The size of the mold groove matches the size of the lower mold to accommodate the lower mold. Guide holes are provided at the four end points of the mold groove. Guide pillars are fixedly provided at the four ends of the lower side surface of the lower mold. The position of the guide hole matches the position of the guide pillar to guide the lower mold into the mold groove.

[0010] As a further improvement of the present invention, the limiting assembly includes a moving column and a moving rod. A horizontal plate and a vertical plate are provided on the side of the lower mold, the horizontal plate is fixedly connected to the side of the lower mold, and the upper side of the vertical plate is fixedly connected to the lower side of the horizontal plate, so that the horizontal plate and the vertical plate are integrated. A limiting groove is provided on the lower mold frame. The limiting groove matches the size of the vertical plate to accommodate the vertical plate. The upper side of the vertical plate is symmetrically provided with moving grooves, and the moving grooves penetrate the vertical plate downward. The moving column is located on the upper side of the moving groove, and the moving rod is located inside the moving groove, and the moving rod is slidably connected to the moving groove. The lower side of the moving column is fixedly connected to the upper side of the moving rod.

[0011] As a further improvement of the present invention, a plurality of balls are fixedly arranged on one side of the moving rod, and a ball opening is provided on the side of the vertical plate, through which the balls can extend out of the vertical plate. Ball grooves are provided on the walls on both sides where the limiting groove abuts against the vertical plate, the position of the ball grooves corresponds to the position of the balls, and the shape of the ball grooves matches the balls, for clamping the balls.

[0012] As a further improvement of the present invention, a plurality of balls are arranged at equal intervals.

[0013] As a further improvement of the present invention, a plurality of springs are arranged between the moving rod and the side wall of the moving groove away from the ball groove. One end of the spring is fixedly connected to the moving rod, and the other end is fixedly connected to the side wall of the moving groove. The spring is located directly behind the ball, and the spring corresponds to the ball one by one.

[0014] As a further improvement of the present invention, the locking assembly includes a locking rod and a locking claw. One end of the locking rod is fixedly connected to the moving column, and the other end is fixedly connected to the locking claw. The locking assemblies on the left and right sides can move toward each other, and the locking claws on both sides can be engaged with each other.

[0015] As a further improvement of the present invention, the locking hook is a semicircular structure, with the inner side of the arc facing one side of the locking rod to which it is connected.

[0016] As a further improvement of the present invention, the locking rod is made of an elastic material and has the ability to stretch and twist.

[0017] As a further improvement of the present invention, limiting components and locking components are provided on the surrounding side surfaces of the upper mold and the lower mold.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By setting the limit assembly and the locking assembly, the moving column drives the moving rod to move horizontally in the moving groove, so that the ball and the ball groove can be selectively connected, and the locking claws on both sides of the cross plate can be connected to quickly separate the mold frame and the mold, so that the mold on the mold frame can be quickly installed and removed, which reduces the replacement time, facilitates the maintenance of the mold and the mold frame, and reduces the maintenance cost.

[0020] 2. By setting the guide column and guide hole, the upper mold and the lower mold can be quickly installed into the mold groove, which improves the efficiency and accuracy of installing and removing the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the guide column of the present invention;

[0023] Figure 3 is a cross-sectional view of a guide column of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the limiting assembly and the locking assembly of the present invention;

[0025] Figure 5 It is a schematic diagram of the present invention when locked;

[0026] Figure 6 This is a schematic diagram of the structure of the present invention when unlocking.

[0027] Description of the numbers in the figure:

[0028] Upper mold 1, lower mold 2, upper mold frame 3, lower mold frame 4, mold groove 5, guide column 6, guide hole 7, movable column 8, movable rod 9, ball 10, spring 11, movable groove 12, ball groove 13, locking rod 14, locking claw 15, horizontal plate 16, vertical plate 17, limit groove 18. DETAILED DESCRIPTION

[0029] Specific embodiment 1: Please refer to Figure 1-6A molding die frame for a landing gear strut comprises an upper die 1, a lower die 2, an upper die frame 3 and a lower die frame 4. The upper die frame 3 is arranged on the lower die frame 4. The upper die 1 is arranged below the upper die frame 3, and the upper die 1 and the upper die frame 3 are detachably connected. The lower die 2 is arranged on the lower die frame 4, and the lower die 2 and the lower die frame 4 are detachably connected. A die groove 5 is provided on the lower die frame 4. The size of the die groove 5 matches the size of the lower die 2 to accommodate the lower die 2. When the lower die 2 is installed on the lower die frame 4, the lower side surface of the lower die 2 abuts against the upper side surface of the die groove 5. Guide holes 7 are provided at the four end points on the die groove 5. Guide posts 6 are fixedly provided at the four ends of the lower side surface of the lower die 2, and the guide posts 6 are inserted into the guide holes 7. The position of the guide hole 7 matches the position of the guide post 6 to guide the lower die 2 into the die groove 4.

[0030] The present invention also includes a limit assembly and a locking assembly. The limit assembly and the locking assembly are arranged on the upper mold 1 and the lower mold 2. The limit assembly and the locking assembly are arranged on the sides of the upper mold 1 and the lower mold 2. Two sets of limit assemblies and locking assemblies are symmetrically arranged on a single side of the upper mold 1 and the lower mold 2.

[0031] The limiting assembly is used to lock the lower mold 2 on the lower mold frame 4. The limiting assembly is fixedly connected to the outer side of the lower mold 2, and the limiting assembly is partially embedded in the lower mold frame 4. The limiting assembly can be selectively engaged with the lower mold frame 4. The limiting assembly includes a moving column 8 and a moving rod 9. A horizontal plate 16 and a vertical plate 17 are provided on the side of the lower mold 2. The horizontal plate 16 is fixedly connected to the side of the lower mold 2, and the upper side of the vertical plate 17 is fixedly connected to the lower side of the horizontal plate 16, so that the horizontal plate 16 and the vertical plate 17 form an integral body. A limiting groove 18 is provided on the lower mold frame 4. The limiting groove 18 matches the size of the vertical plate 17 to accommodate the vertical plate 17. When the lower mold frame 4 is in a locked state, the vertical plate 17 is located in the limiting groove 12, the bottom surface of the vertical plate 17 abuts against the upper side surface of the bottom of the limiting groove 12, and the two side surfaces of the vertical plate 17 abut against the inner wall of the limiting groove 12.

[0032] The upper side of the vertical plate 17 is symmetrically provided with moving grooves 12, and the moving grooves 12 penetrate the vertical plate 17 downward. The moving column 8 is located on the upper side of the moving groove 12, and the moving rod 9 is located inside the moving groove 12, and the moving rod 9 is slidably connected to the moving groove 12. The lower side of the moving column 8 is fixedly connected to the upper side of the moving rod 9, and the moving column 8 moves left and right in the moving groove 12 to drive the moving rod 9 to move left and right. The moving groove 12 is a straight slot structure, and the moving groove 12 is located at the side of the vertical plate 17, and the moving groove 12 penetrates the vertical plate 17. A plurality of balls 10 are fixedly arranged on one side of the moving rod 9, and a ball opening is provided on the side of the vertical plate 17, and the balls 10 can extend out of the vertical plate 17 through the ball opening. Ball grooves 13 are provided on the walls on both sides where the limiting groove 18 abuts against the vertical plate 17, and the position of the ball groove 13 corresponds to the position of the ball 10, and the shape of the ball groove 13 matches the ball 10, which is used to clamp the ball 10. One side of the ball 10 is fixedly connected to the moving rod 9, and the other side is embedded in the ball groove 13. Several balls 10 are arranged at equal intervals. Several springs 11 are arranged between the moving rod 9 and the side wall of the moving groove 12 away from the ball groove 13. One end of the spring 11 is fixedly connected to the moving rod 9, and the other end is fixedly connected to the side wall of the moving groove 12. The spring 11 is located directly behind the ball 10, and the spring 11 corresponds to the ball 10 one by one, and each ball 10 is connected to a spring 11 directly behind. When locking the lower mold 2, the moving rod 9 is located on the side of the moving groove 12 close to the ball groove 13, and the spring 11 is in the initial state, pressing the moving rod 9 against the side wall of the limiting groove 18, and the ball 10 is stuck in the ball groove 13, so that the lower mold 2 is limited in the lower mold frame 4.

[0033] The locking assembly is connected to the limiting assembly, and the two groups of locking assemblies symmetrical on the same side can be fixedly connected. The locking assembly includes a locking rod 14 and a locking claw 15. One end of the locking rod 14 is fixedly connected to the movable column 8, and the other end is fixedly connected to the locking claw 15. The locking assemblies on the left and right sides can move toward each other, and the locking claws 15 on both sides can be connected. The locking claw 15 is a semicircular structure, and the inner side of the arc faces the side of the locking rod 14 to which it is connected. The locking rod 14 is made of elastic material and has the ability to stretch and twist. The locking rods 14 on both sides are twisted so that the inner sides of the semicircular arcs of the locking claws 15 on both sides are abutted. When unlocking the lower mold 2, the movable columns 8 on the left and right sides are moved toward each other, and the movable rod 9 presses the spring 10 toward the inside, the ball 10 is released from the constraint of the ball groove 13, the locking rods 14 move toward each other, and the locking claws 15 are connected to each other. After releasing the locks on each side plate in turn, the vertical plate 17 is lifted out of the limiting groove 18 , so that the lower mold frame 4 releases the lock on the lower mold 2 .

[0034] Working principle:

[0035] Put the lower mold 2 into the mold groove 5, insert the vertical plate 17 into the limiting groove 18, and release the locking claws 15 on each side. The spring 11 returns to the initial state, pressing the moving rod 9 against the side wall of the limiting groove 18, and the ball 10 is stuck in the ball groove 13, so that the lower mold 2 is limited in the lower mold frame 4. When unlocking the lower mold 2, the moving columns 8 on the left and right sides move toward each other, and the moving rod 9 presses the spring 10 inward, the ball 10 is released from the constraint of the ball groove 13, the locking rod 14 moves toward each other, and the locking claws 15 are engaged with each other. After releasing the locks on each side plate in turn, lift the vertical plate 17 out of the limiting groove 18, so that the lower mold frame 4 releases the lock on the lower mold 2. It can realize the rapid installation and removal of the mold on the mold frame, reduce the replacement time, facilitate the maintenance of the mold and the mold frame, and reduce the maintenance cost.

Claims

1. A molding die frame for a landing gear strut, comprising an upper die (1), a lower die (2), an upper die frame (3) and a lower die frame (4); the upper die frame (3) is arranged on the lower die frame (4); the upper die (1) is arranged below the upper die frame (3), and the upper die (1) and the upper die frame (3) are detachably connected; the lower die (2) is arranged above the lower die frame (4), and the lower die (2) and the lower die frame (4) are detachably connected; characterized in that: It also includes a limit assembly and a locking assembly; the limit assembly and the locking assembly are arranged on the upper mold (1) and the lower mold (2); two sets of limit assemblies and two sets of locking assemblies are arranged on a single side of the lower mold (2); the two sets of limit assemblies and the two sets of locking assemblies are arranged symmetrically on the left and right; The limit assembly is used to lock the lower die (2) on the lower die frame (4); the limit assembly is fixedly connected to the outer side surface of the lower die (2); the limit assembly is partially embedded in the lower die frame (4); and the limit assembly can be selectively engaged with the lower die frame (4); The locking assembly is connected to the limiting assembly, and the two sets of locking assemblies symmetrically located on the same side can be fixedly connected; The limiting assembly comprises a moving column (8) and a moving rod (9); a horizontal plate (16) and a vertical plate (17) are arranged on the side of the lower mold (2); the horizontal plate (16) is fixedly connected to the side of the lower mold (2); the upper side of the vertical plate (17) is fixedly connected to the lower side of the horizontal plate (16), so that the horizontal plate (16) and the vertical plate (17) form an integral body; a limiting groove (18) is provided on the lower mold frame (4); the limiting groove (18) matches the size of the vertical plate (17) to accommodate the vertical plate (17); the upper side of the vertical plate (17) is symmetrically provided with moving grooves (12), and the moving grooves (12) penetrate the vertical plate (17) downward; the moving column (8) is located on the upper side of the moving groove (12), the moving rod (9) is located inside the moving groove (12), and the moving rod (9) is slidably connected to the moving groove (12); the lower side of the moving column (8) is fixedly connected to the upper side of the moving rod (9); A plurality of balls (10) are fixedly arranged on one side of the moving rod (9), and a ball opening is provided on the side of the vertical plate (17), through which the balls (10) can extend out of the vertical plate (17); ball grooves (13) are provided on the walls on both sides where the limiting groove (18) abuts against the vertical plate (17), the position of the ball groove (13) corresponds to the position of the ball (10), and the shape of the ball groove (13) matches the ball (10) and is used to clamp the ball (10); The plurality of balls (10) are arranged at equal intervals; A plurality of springs (11) are arranged between the moving rod (9) and the side wall of the moving groove (12) away from the ball groove (13); one end of the spring (11) is fixedly connected to the moving rod (9), and the other end is fixedly connected to the side wall of the moving groove (12); the spring (11) is located directly behind the ball (10), and the spring (11) corresponds to the ball (10) one by one; The locking assembly comprises a locking rod (14) and a locking hook (15); one end of the locking rod (14) is fixedly connected to the movable column (8), and the other end is fixedly connected to the locking hook (15); the locking assemblies on the left and right sides can move towards each other, and the locking hooks (15) on both sides can be engaged with each other; The locking rod (14) is made of an elastic material and has the ability to stretch and twist.

2. The molding die frame for a landing gear strut according to claim 1, characterized in that: A mold groove (5) is provided on the lower mold frame (4); the size of the mold groove (5) matches the size of the lower mold (2) so as to accommodate the lower mold (2); guide holes (7) are provided at the four end points of the mold groove (5); guide pillars (6) are fixedly provided at the four ends of the lower side surface of the lower mold (2); the position of the guide hole (7) matches the position of the guide pillar (6) so as to guide the lower mold (2) into the mold groove (5).

3. The molding die frame for a landing gear strut according to claim 1, characterized in that: The locking hook (15) is a semicircular structure, with the inner side of the arc facing one side of the locking rod (14) to which it is connected.

4. The molding die frame for a landing gear strut according to claim 1, characterized in that: Limiting components and locking components are arranged on the surrounding side surfaces of the upper mold (1) and the lower mold (2).

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