Honeycomb brazing fixture for aircraft parts

Abstract

The invention discloses a honeycomb brazing fixture for aircraft components, and relates to the technical field of honeycomb panel brazing. The invention comprises a lower clamping plate and a honeycomb core, wherein an upper cover plate and a lower cover plate are respectively provided on the upper and lower surfaces of the honeycomb core, the lower cover plate is placed on the lower clamping plate, a plurality of movable grooves are provided on the peripheral surface of the lower clamping plate, a movable block is rotatably installed inside the movable groove, a support plate is welded on the upper surface of the movable block, an upper clamping block and a lower clamping block are relatively provided on the side of the support plate close to the honeycomb core, respectively matched with the peripheral surface of the upper cover plate and the lower cover plate, and a plurality of first springs are connected between the upper clamping block and the lower clamping block and the support plate to ensure the clamping effect of the upper cover plate and the lower cover plate, and a movable plate is provided inside the support plate, the upper end of the movable plate is rotatably matched with a connecting rod, the other end of the connecting rod is welded with an upper clamping plate, matched with the upper cover plate, and combined with the matching of the lower clamping plate and the lower cover plate, the stability of the workpiece is further ensured, the structure is simple, and the workpiece is convenient to take and place.

Description

Technical Field

[0001] The invention belongs to the technical field of honeycomb plate brazing, and in particular relates to a honeycomb brazing fixture for aircraft components. Background Art

[0002] Since the beginning of the 20th century, my country has been exploring the application of advanced brazing technology in the manufacture of spacecraft components. Among them, the brazing of aluminum honeycomb panels in aircraft components is more common. When brazing aircraft components, a brazing fixture is needed to clamp the aluminum honeycomb panels to be processed to ensure the stability of the aluminum honeycomb panels during the brazing process and the brazing effect.

[0003] The existing aluminum honeycomb panel brazing fixture structure is relatively complex and cannot be flexibly adjusted to adapt to aluminum honeycomb panels of different sizes. At the same time, it is inconvenient to take and place the aluminum honeycomb panels before and after brazing, which affects the brazing efficiency.

[0004] In view of the above shortcomings, we designed a honeycomb brazing fixture for aircraft components to solve the above problems. Summary of the Invention

[0005] (1) Technical problems to be solved

[0006] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a honeycomb brazing fixture for aircraft components, aiming to solve the problems that the existing aluminum honeycomb panel brazing fixture has a relatively complex structure and cannot be flexibly adjusted to adapt to aluminum honeycomb panels of different sizes. At the same time, it is inconvenient to take and place the aluminum honeycomb panels before and after brazing, which affects the brazing efficiency.

[0007] (2) Technical solution

[0008] The present invention is a honeycomb brazing fixture for aircraft components, comprising a lower splint and a honeycomb core, wherein an upper cover plate and a lower cover plate are respectively provided on the upper and lower surfaces of the honeycomb core, the lower cover plate is placed on the lower splint, a plurality of movable grooves are opened on the peripheral surface of the lower splint, a movable block is rotatably installed inside the movable groove through a damping shaft, a support plate is welded on the upper surface of the movable block, and an upper clamping block and a lower clamping block are relatively arranged in the vertical direction on the side of the support plate close to the honeycomb core, the upper clamping block and the lower clamping block respectively cooperate with each other at the outer corners of the upper cover plate and the lower cover plate, and a plurality of first springs are connected between the upper clamping block and the lower clamping block and the support plate, a movable plate is movably provided inside the support plate, the upper end of the movable plate is rotatably cooperated with a connecting rod, and the other end of the connecting rod is welded with the upper splint, which cooperates with the upper surface of the upper cover plate.

[0009] The cam is adapted to move the upper and lower plates closer to the top of the support member so as to allow the upper and lower plates to move in a fixed position relative to the top of the support member and to move the upper and lower plates closer to the top of the support member.

[0010] Preferably, a plurality of fixed plates are welded around the upper surface of the lower clamping plate, a threaded rod is threadedly fitted on the surface of the fixed plate, and a movable clamping plate is rotatably connected to the inner end of the threaded rod to fit the outer surface of the honeycomb core.

[0011] Furthermore, two limiting plates are welded relatively to the outer surface of the movable block, and the limiting plates cooperate with the outer edges of the movable groove.

[0012] Furthermore, the surface of the limit plate is threadedly engaged with a locking bolt, and the peripheral surface of the lower clamping plate is provided with a plurality of threaded holes, and the locking bolts are threadedly engaged with the threaded holes. Through the mutual cooperation between the limit plate and the outer edge of the movable groove, the rotation range of the movable block is effectively limited. Combined with the threaded cooperation of the locking bolt and the threaded hole, it is convenient to fix the limit plate and the lower clamping plate together, thereby ensuring that the support plate is stably in a vertical state, ensuring the clamping effect of the clamp.

[0013] Furthermore, the support plate is provided with a plurality of positioning holes on both side surfaces close to the fixed plate, and the positioning holes are connected to the inner cavity of the support plate. Two cavities are provided on the lower side of the movable plate. An extrusion plate is movably arranged inside the cavity. A second spring is connected between one side of the extrusion plate and the inner wall of the cavity, and a positioning block is connected to the other side.

[0014] Furthermore, a through hole is opened on the outside of the cavity, which passes through the outer surface of the movable plate. The positioning block is movably matched with the through hole, and the positioning block and the positioning hole cooperate with each other. Through the movably matched with the through hole and the mutual matching of the positioning block and the positioning hole, under the action of the second spring, it is convenient to squeeze the positioning block into the corresponding positioning hole, thereby fixing the movable plate and ensuring the clamping effect of the clamp.

[0015] Furthermore, a fixing ring is welded to the outer end of the threaded rod.

[0016] Furthermore, a telescopic rod is connected between the lower side of the movable splint away from the honeycomb core and the fixed plate.

[0017] (3) Beneficial effects

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

[0019] 1. The present invention facilitates the adjustment of the support plate to flip to a side close to the honeycomb core to a vertical state through the action of the damping rotating shaft between the movable block and the movable groove, thereby driving the upper clamping block and the lower clamping block to flip in the direction close to the upper cover plate and the lower cover plate respectively. Combined with the mutual cooperation of the upper clamping block and the lower clamping block with the outer corners of the upper cover plate and the lower cover plate respectively, under the action of the first spring, the upper cover plate and the lower cover plate are limited and clamped. It is notified that under the movable cooperation of the movable plate and the support plate, it is convenient to adjust the upper and lower movements of the movable plate, thereby driving the upper clamping plate to move up and down, pressing and fixing the upper cover plate, and adapting to the clamping and fixing of aluminum honeycomb panels of different sizes. At the same time, the rotation cooperation of the connecting rod and the movable plate facilitates the adjustment of the upper clamping plate to rotate in the direction away from the upper cover plate, which is convenient for taking and placing the aluminum honeycomb panels before and after brazing. The combination is simple and easy to use.

[0020] 2. The present invention effectively limits the rotation range of the movable block through the mutual cooperation between the limit plate and the outer edge of the movable groove. Combined with the threaded cooperation between the locking bolt and the threaded hole, it is convenient to fix the limit plate and the lower clamping plate together, thereby ensuring that the support plate is stably in a vertical state and ensuring the clamping effect of the clamp.

[0021] 3. The present invention facilitates squeezing the positioning block into the corresponding positioning hole under the action of the second spring through the movable cooperation between the positioning block and the through hole, as well as the mutual coordination between the positioning block and the positioning hole, thereby fixing the movable plate and ensuring the clamping effect of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 A top view of the present invention;

[0025] Figure 3 for Figure 2 Structural diagram of the middle section AA;

[0026] Figure 4for Figure 3 Schematic diagram of the structure of the middle section BB;

[0027] Figure 5 for Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0028] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at D in the middle;

[0029] Figure 7 It is a structural schematic diagram of the lower splint in the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Lower clamping plate; 2. Upper cover plate; 3. Honeycomb core; 4. Lower cover plate; 5. Movable groove; 6. Movable block; 7. Support plate; 8. Upper clamping block; 9. Lower clamping block; 10. First spring; 11. Movable plate; 12. Connecting rod; 13. Upper clamping plate; 14. Fixed plate; 15. Threaded rod; 16. Movable clamping plate; 17. Limit plate; 18. Locking bolt; 19. Positioning hole; 20. Cavity; 21. Positioning block; 22. Extrusion plate; 23. Second spring; 24. Fixing ring; 25. Telescopic rod. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] This specific embodiment is a honeycomb brazing fixture for aircraft parts. Figure 1-Figure 7As shown, the honeycomb brazing fixture for aircraft components includes a lower splint 1 and a honeycomb core 3. The upper and lower surfaces of the honeycomb core 3 are respectively provided with an upper cover plate 2 and a lower cover plate 4. The lower cover plate 4 is placed on the lower splint 1. A plurality of movable grooves 5 are opened on the lateral surface of the lower splint 1. A movable block 6 is installed inside the movable groove 5 through a damping shaft. A support plate 7 is welded on the upper surface of the movable block 6. The support plate 7 is close to one side of the honeycomb core 3. An upper clamping block 8 and a lower clamping block 9 are relatively arranged in the vertical direction. The upper clamping block 8 and the lower clamping block 9 respectively cooperate with each other at the outer corners of the upper cover plate 2 and the lower cover plate 4, and a plurality of first springs 10 are connected between the upper clamping block 8 and the lower clamping block 9 and the support plate 7. A movable plate 11 is movably provided inside the support plate 7. The upper end of the movable plate 11 is rotatably matched with a connecting rod 12. The other end of the connecting rod 12 is welded with an upper splint 13, which cooperates with the upper surface of the upper cover plate 2.

[0035] The cam 13 is rotated in a direction away from the upper cover plate 2, so that the upper and lower clamping blocks 8 and the lower and lower clamping blocks 9 can be rotated in a direction close to the upper cover plate 2 and the lower cover plate 4 respectively.

[0036] Several fixed plates 14 are welded to the circumferential side of the upper surface of the lower splint 1, and a threaded rod 15 is threadedly fitted on the surface of the fixed plate 14. The inner end of the threaded rod 15 is rotatably connected to a movable splint 16, which cooperates with the outer surface of the honeycomb core 3. A fixing ring 24 is welded to the outer end of the threaded rod 15, and a telescopic rod 25 is connected between the lower side of the movable splint 16 away from the honeycomb core 3 and the fixed plate 14. Through the threaded cooperation of the threaded rod 15 and the fixed plate 14, combined with the rotational cooperation of the threaded rod 15 and the movable splint 16, it is easy to adjust the movable splint 16 toward the direction of the honeycomb core 3 to clamp the honeycomb core 3, further ensuring the clamping effect of the clamp, wherein the fixing ring 24 facilitates the adjustment of the threaded rod 15, and at the same time the telescopic rod 25 ensures the stability of the movement of the movable splint 16.

[0037] A plurality of positioning holes 19 are provided on the two side surfaces of the support plate 7 close to the fixed plate 14, and the positioning holes 19 are connected to the inner cavity of the support plate 7. Two cavities 20 are relatively provided on the lower side of the interior of the movable plate 11. An extrusion plate 22 is movably provided inside the cavity 20. A second spring 23 is connected between one side of the extrusion plate 22 and the inner wall of the cavity 20, and a positioning block 21 is connected on the other side. A through hole is provided on the outside of the cavity 20, which passes through the outer surface of the movable plate 11. The positioning block 21 is movably matched with the through hole, and the positioning block 21 cooperates with the positioning hole 19. Through the movable cooperation between the positioning block 21 and the through hole, and the mutual cooperation between the positioning block 21 and the positioning hole 19, under the action of the second spring 23, it is easy to squeeze the positioning block 21 into the corresponding positioning hole 19, thereby fixing the movable plate 11 and facilitating the up and down adjustment of the movable plate 11 to adapt to the clamping and fixation of aluminum honeycomb panels of different sizes.

[0038] Two limit plates 17 are welded relative to each other on the outer surface of the movable block 6. The limit plates 17 cooperate with the outer edges of the movable groove 5. The surface of the limit plates 17 is threadedly fitted with locking bolts 18. A number of threaded holes are provided on the side surface of the lower clamping plate 1. The locking bolts 18 are threadedly fitted with the threaded holes. The mutual cooperation between the limit plates 17 and the outer edges of the movable groove 5 effectively limits the rotation range of the movable block 6. Combined with the threaded cooperation of the locking bolts 18 and the threaded holes, it is convenient to fix the limit plates 17 and the lower clamping plate 1 together, thereby ensuring that the support plate 7 is stably in a vertical state, ensuring the clamping effect of the clamp.

[0039] Working principle: When using the honeycomb brazing fixture for aircraft components of the present invention, first, the processed lower cover plate 4, honeycomb core 3 and upper cover plate 2 are placed on the lower clamping plate 1 in sequence. Then, under the action of the damping shaft between the movable block 6 and the movable groove 5, the support plate 7 is adjusted to flip toward the side close to the honeycomb core 3. Combined with the mutual cooperation of the limit plate 17 and the outer edge of the movable groove 5, until the limit plate 17 is in contact with the outer edge of the movable groove 5, the support plate 7 is in a vertical state. At the same time, under the thread cooperation of the locking bolt 18 and the threaded hole, the locking bolt 18 is adjusted and screwed into the bottom of the threaded hole to fix the limit plate 17 on the lower clamping plate 1, thereby ensuring the stability of the support plate 7.

[0040] Driven by the support plate 7, the upper clamping block 8 and the lower clamping block 9 cooperate with the outer corners of the upper cover plate 2 and the lower cover plate 4 respectively, driving the upper clamping block 8 to clamp at the outer corner of the upper cover plate 2, and at the same time driving the lower clamping block 9 to clamp at the outer corner of the lower cover plate 4, and under the elastic action of the first spring 10, the corners of the upper cover plate 2 and the lower cover plate 4 are clamped;

[0041] At this time, under the rotation cooperation of the connecting rod 12 and the upper end of the movable plate 11, the upper clamping plate 13 is adjusted to rotate above the upper cover plate 2, and the positioning blocks 21 on both sides are pressed into the cavity 20, squeezing the second spring 23, and adjusting the movable plate 11 to move up and down until the upper clamping plate 13 is pressed on the upper surface of the upper cover plate 2. At this time, the positioning blocks 21 are released, and under the action of the second spring 23, the positioning blocks 21 are squeezed into the corresponding positioning holes 19 to fix the movable plate 11, thereby ensuring that the upper clamping plate 13 is stably pressed on the upper cover plate 2, which is suitable for clamping and fixing workpieces of different sizes;

[0042] At the same time, under the threaded cooperation between the threaded rod 15 and the fixed plate 14, and the rotation cooperation between the threaded rod 15 and the movable clamping plate 16, combined with the telescopic rod 25, the threaded rod 15 is adjusted to rotate inward through the fixed ring 24, thereby driving the movable clamping plate 16 to move in the direction close to the honeycomb core 3, clamping the outer side of the honeycomb core 3, effectively improving the clamping effect of the clamp;

[0043] Finally, the brazing operation is carried out. After the brazing is completed, it is only necessary to adjust the movable clamping plate 16 away from the honeycomb core 3 and adjust the movable plate 11 to move upward. Under the rotation cooperation of the connecting rod 12 and the movable plate 11, the upper clamping plate 13 is adjusted to rotate in the direction away from the upper cover plate 2 and detach from the upper surface of the upper cover plate 2, so as to facilitate the removal of the brazed workpiece and effectively improve the brazing efficiency.

[0044] It should be further explained that the installation method, connection method or setting method of each component in the present invention are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects.

[0045] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0046] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A honeycomb brazing fixture for aircraft components, comprising a lower clamping plate (1) and a honeycomb core (3), characterized in that: The upper and lower surfaces of the honeycomb core (3) are respectively provided with an upper cover plate (2) and a lower cover plate (4), the lower cover plate (4) is placed on the lower clamping plate (1), and a plurality of movable grooves (5) are provided on the peripheral surface of the lower clamping plate (1), and a movable block (6) is installed in the movable groove (5) through a damping shaft, and a support plate (7) is welded on the upper surface of the movable block (6). The support plate (7) is close to the side of the honeycomb core (3), and an upper clamping block (8) and a lower clamping block (9) are relatively provided in the vertical direction. The upper clamping block (8) and the lower clamping block (9) respectively cooperate with the outer corners of the upper cover plate (2) and the lower cover plate (4), and the upper clamping block (8) and the lower clamping block (9) are respectively provided with a plurality of movable grooves (5) and a movable block (6) are installed in the movable groove (5) through a damping shaft, and a support plate (7) is welded on the upper surface of the movable block (6). A plurality of first springs (10) are connected between the lower clamping block (9) and the support plate (7); a movable plate (11) is movably provided inside the support plate (7); the upper end of the movable plate (11) is rotatably matched with a connecting rod (12); the other end of the connecting rod (12) is welded with an upper clamping plate (13); the upper clamping plate (13) is matched with the upper surface of the upper cover plate (2); a plurality of fixed plates (14) are welded on the circumferential side of the upper surface of the lower clamping plate (1); the surface of the fixed plate (14) is threadedly matched with a threaded rod (15); the inner end of the threaded rod (15) is rotatably connected to a movable clamping plate (16); the movable clamping plate (16) is matched with the outer surface of the honeycomb core (3); Two limiting plates (17) are welded relative to each other on the outer surface of the movable block (6), and the limiting plates (17) and the outer edges of the movable groove (5) cooperate with each other; The surface of the limit plate (17) is threadedly matched with a locking bolt (18), and the peripheral surface of the lower clamping plate (1) is provided with a plurality of threaded holes, and the locking bolt (18) is threadedly matched with the threaded holes; The support plate (7) is provided with a plurality of positioning holes (19) on both sides of the surface close to the fixed plate (14), and the positioning holes (19) are communicated with the inner cavity of the support plate (7). Two cavities (20) are provided on the lower side of the interior of the movable plate (11). An extrusion plate (22) is movably provided inside the cavity (20). A second spring (23) is connected between one side of the extrusion plate (22) and the inner wall of the cavity (20), and a positioning block (21) is connected on the other side. A through hole is provided on the outside of the cavity (20) and passes through the outer surface of the movable plate (11); the positioning block (21) is movably matched with the through hole, and the positioning block (21) and the positioning hole (19) are matched with each other.

2. The honeycomb brazing fixture for aircraft components according to claim 1, characterized in that: A fixing ring (24) is welded to one end of the threaded rod (15) close to the outside.

3. The honeycomb brazing fixture for aircraft parts according to claim 2, characterized in that: A telescopic rod (25) is connected between the lower side of the movable splint (16) away from the honeycomb core (3) and the fixed plate (14).

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