General bevel die for aircraft profiles

Abstract

This invention relates to a universal angled die for aircraft profiles, belonging to the field of mold processing and profile forming technology. Specifically, it relates to a universal angled die for aircraft profiles. This invention provides a universal angled die for aircraft profiles with adjustable recess width, reducing die replacement and improving processing efficiency. The invention is characterized by: a first upper die and a second upper die disposed within an upper die base; a first lower die corresponding to the first upper die and a second lower die corresponding to the second upper die disposed within a lower die base; an upper die rubber pad disposed between the first upper die and the upper die base; a lower die rubber pad disposed between the second lower die and the lower die base; a lower die fixing mechanism that cooperates with the first and second lower dies disposed on the side of the lower die base; and a T-shaped slider structure at the upper end of the first upper die.

Description

Technical Field

[0001] This utility model belongs to the field of mold processing and profile forming technology, specifically relating to a general-purpose angled mold for aircraft profiles. Background Technology

[0002] In aircraft manufacturing, die forming is a crucial connection technology, particularly in the assembly of aircraft skin and structural components, where angled profiles are widely used. Existing profile molds typically only process single angled profiles, lacking versatility, limiting their processing range, and resulting in a wide variety of mold types. Management and maintenance of these molds are time-consuming and labor-intensive. This leads to low processing efficiency and the time-consuming process of frequent mold changes.

[0003] Furthermore, the existing mold structure is a single unit with a fixed angle, and the width and depth of the recess are fixed, making it impossible to operate on parts with different recess depths and widths, resulting in low production efficiency. Aircraft profile parts are complex and diverse, leading to high labor intensity for workers, slow processing speed, and impacting production progress and quality.

[0004] Therefore, the existing technology has the following problems: 1. Difficult tooling management: Each type of part requires a corresponding mold, the number and types of molds are large, and the tooling maintenance cost is high.

[0005] 2. Limited processing: Only parts with one angle, one recess width and depth can be processed.

[0006] 3. Frequent operation: The molded parts need to be replaced repeatedly, which is physically demanding and dangerous for workers.

[0007] To improve the machining accuracy of profile parts in aircraft manufacturing, there is an urgent need to develop a universal profile bevel die that can reduce the frequency of die replacement and adjust the depth width, in order to overcome the shortcomings of existing technologies. Utility Model Content

[0008] This utility model addresses the aforementioned problems by providing a universal angled mold for aircraft profiles with adjustable recess width, reducing mold replacements and improving processing efficiency.

[0009] This utility model adopts the following technical solution: It includes an upper mold base and a lower mold base, characterized in that: a first upper mold and a second upper mold are disposed within the upper mold base; a first lower mold corresponding to the first upper mold and a second lower mold corresponding to the second upper mold are disposed within the lower mold base; an upper mold rubber pad is disposed between the first upper mold and the upper mold base; a lower mold rubber pad is disposed between the second lower mold and the lower mold base; a lower mold fixing mechanism cooperating with the first and second lower molds is disposed on the side of the lower mold base; the upper end of the first upper mold is configured as a T-shaped slider structure; an upper cavity structure is disposed within the upper mold base; the T-shaped slider and the upper mold rubber pad are disposed within the upper cavity; a baffle is disposed at the opening of the upper cavity; the second upper mold is fixedly connected to a tie rod bolt, and the tie rod bolt is threadedly connected to the upper mold base; a locking screw for the second upper mold is disposed on the side of the upper mold base.

[0010] As a preferred embodiment of this utility model, a pressure-resistant partition is provided between the first upper mold and the upper mold rubber pad, a first pad is provided between the second lower mold and the lower mold rubber pad, and a second pad is provided between the first lower mold and the lower mold base.

[0011] Furthermore, the first and second pads are provided with protrusions, and the first and second lower molds are provided with grooves corresponding to the protrusions.

[0012] As another preferred embodiment of this utility model, both the first lower mold and the second lower mold are configured as separate structures, with a gap between the separate structures.

[0013] As a third preferred embodiment of this utility model, the lower mold fixing mechanism includes a handle fixed to the side of the lower mold base. The handle is connected to a push rod through a linkage mechanism. The end of the push rod is provided with a top plate corresponding to the first lower mold and the second lower mold.

[0014] As a fourth preferred embodiment of this utility model, the baffle is provided with a vertical sliding groove, and the baffle is fixed to the upper mold base by positioning bolts inside the vertical flowers and plants.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model adopts a universal mold base and a combination of replaceable upper and lower molds, which significantly reduces the types and quantities of molds, thereby reducing the intensity of tooling management and maintenance costs.

[0016] 2. By adjusting the tie rod bolts of the second upper mold and the rubber pads, the width and depth of the depression can be adjusted, thus expanding the range of workable parts.

[0017] 3. The modular, split lower mold reduces the labor intensity during replacement and improves operational safety.

[0018] 4. The lower mold fixing mechanism (including the quick-clamp type of handle-connecting rod-top plate) works in conjunction with the locking mechanism on the side of the upper mold to quickly clamp and release the mold, saving mold replacement and installation time and improving production efficiency.

[0019] 5. The T-shaped slider, baffle, upper and lower mold rubber pads, pressure-resistant pads, and concave-convex mating structure in the upper cavity work together to enhance the stability of mold clamping and the uniformity of force, improve molding accuracy, and adapt to various profile sections such as "T" and "L", making it highly versatile. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional view of the present invention.

[0022] In the attached diagram, 1 is the upper mold base, 2 is the baffle, 3 is the adjusting plate, 4 is the first upper mold, 5 is the second upper mold, 6 is the mold handle, 7 is the lower mold base, 8 is the top plate, 9 is the second lower mold, 10 is the first lower mold, 11 is the lower mold fixing mechanism, 12 is the upper mold rubber pad, 13 is the lower mold rubber pad, 14 is the second pad, 15 is the first pad, 16 is the pressure-resistant partition plate, 17 is the tie rod bolt, and 18 is the locking screw. Detailed Implementation

[0023] This utility model adopts the following technical solution: It includes an upper mold base 1 and a lower mold base 7. The upper mold base 1 houses a first upper mold 4 and a second upper mold 5. The lower mold base 7 houses a first lower mold 10 corresponding to the first upper mold 4 and a second lower mold 9 corresponding to the second upper mold 5. An upper mold rubber pad 12 is provided between the first upper mold 4 and the upper mold base 1, and a lower mold rubber pad 13 is provided between the second lower mold 9 and the lower mold base 7. A lower mold fixing mechanism 11, which cooperates with the first lower mold 10 and the second lower mold 9, is provided on the side of the lower mold base 7. The upper end of the first upper mold 4 is configured as a T-shaped slider structure. An upper cavity structure is provided inside the upper mold base 1. The T-shaped slider and the upper mold rubber pad 12 are disposed within the upper cavity, and a baffle 2 is provided at the opening of the upper cavity. The second upper mold 5 is fixedly connected to a tie rod bolt 17, which is threadedly connected to the upper mold base 1. A locking screw 18 for the second upper mold 5 is provided on the side of the upper mold base 1. This system is used for clamping, buffering, adjusting, and stabilizing the upper and lower molds. Profile forming is achieved through the corresponding arrangement of the upper and lower molds. Rubber pads provide cushioning, a T-shaped slider cooperates with the upper cavity to form a guide and limit, a baffle 2 prevents detachment, the gap of the second upper mold 5 is adjusted by the tie rod bolt 17, and the position of the second upper mold 5 is fixed by the locking screw 18. This ensures stable mold clamping, adjustable sink depth, and prevents the upper mold from detaching, improving the safety and processing accuracy of the forming process and reducing efficiency losses caused by frequent calibration.

[0024] A pressure-resistant partition plate 16 is provided between the first upper mold 4 and the upper mold rubber pad 12; a first pad plate 15 is provided between the second lower mold 9 and the lower mold rubber pad 13; and a second pad plate 14 is provided between the first lower mold 10 and the lower mold base 7. These are used to strengthen the load-bearing capacity, support the mold, and improve the uniformity of stress distribution. The pressure-resistant partition plate 16 increases the load-bearing capacity of the upper mold, the first pad plate 15 provides a buffer contact surface for the lower mold, and the second pad plate 14 keeps the lower mold stable on the lower mold base 7 and avoids stress concentration. This improves the pressure resistance of the mold structure, makes the stress distribution between the upper and lower molds more uniform, reduces mold wear, extends service life, and improves molding stability.

[0025] The first pad 15 and the second pad 14 are provided with protrusions, and the first lower mold 10 and the second lower mold 9 are provided with grooves corresponding to the protrusions. These are used to limit and position the lower molds. Through the engagement of the protrusions and grooves, the lower molds maintain a fixed position during operation, preventing lateral or longitudinal movement. This ensures the stability of the mold processing, improves the repeatability and positioning accuracy of the mold, and avoids molding errors caused by movement.

[0026] Both the first lower mold 10 and the second lower mold 9 are configured as separate structures with gaps between them. This allows for the adaptation of profile parts of different shapes. The separate structures can be flexibly arranged according to the profile cross-section, and the gaps provide embedding space for "T-shaped," "L-shaped," and other special profiles. This significantly increases the types of profiles that can be processed by this invention, making it highly applicable, reducing the need for multiple dedicated molds, and lowering the number of tooling and management costs.

[0027] The lower mold fixing mechanism 11 includes a handle fixed to the side of the lower mold base 7. The handle is connected to a push rod via a linkage mechanism. The end of the push rod is connected to a top plate 8 corresponding to the first lower mold 10 and the second lower mold 9. This mechanism is used for quickly clamping or releasing the lower mold. The handle drives the linkage mechanism to move the push rod, which applies pressure to the lower mold through the top plate 8, causing the lower mold to be quickly positioned and locked. This significantly reduces lower mold replacement time, improves work efficiency, reduces manual labor intensity, and enhances safety.

[0028] The baffle 2 is provided with a vertical sliding groove, and the baffle 2 is fixed to the upper mold base 1 by positioning bolts inside the vertical groove. This allows for adjustable positioning of the baffle 2. The vertical sliding groove cooperates with the positioning bolts, allowing the baffle 2 to move up and down to adapt to changes in the position of the first upper mold 4 and the rubber pad, ultimately achieving reliable fixation. This enhances the adjustability and stability of the baffle 2, ensures that the first upper mold 4 does not fall off, and improves the safety and reliability of the entire mold clamping process.

[0029] The second upper mold 5 is provided with an adjusting plate 3, which is connected to the tie rod bolt 17 by a thread.

[0030] In the use of this utility model, firstly, according to the cross-sectional shape of the profile to be processed, the corresponding first lower die 10 and second lower die 9 are placed in the lower die base 7. The lower die is positioned by the cooperation of the protrusion on the pad and the groove on the lower die, and is clamped by the lower die fixing mechanism 11: the operator moves the handle on the side of the lower die base 7, the handle drives the linkage mechanism to push the push rod, and the top plate 8 at the end of the push rod presses the first lower die 10 and the second lower die 9, so that the lower die is firmly fixed on the lower die base 7.

[0031] Subsequently, the first upper mold 4 and the second upper mold 5 are respectively installed in the upper mold base 1. The first upper mold 4 is inserted into the upper cavity through its T-shaped slider structure and contacts the upper mold rubber pad 12 and the pressure-resistant partition plate 16. The baffle 2 at the opening of the upper cavity moves along the vertical slide to the designated position and is fixed with positioning bolts to prevent the first upper mold 4 from falling outward. The second upper mold 5 is threadedly connected to the upper mold base 1 through the tie rod bolt 17. The height of the second upper mold 5 is adjusted by rotating the tie rod bolt 17 to form a gap with the first upper mold 4 that meets the molding requirements, and it is locked by the locking screw 18 on the side of the upper mold base 1.

[0032] After the mold is clamped, the stamping equipment drives the upper mold base 1 downward. The upper mold gradually contacts the lower mold under the cushioning effect of the rubber pad, and the two sets of upper and lower molds clamp at corresponding positions, completing the profile's sinking formation. The lower mold rubber pad 13 provides further cushioning at the moment of forming, allowing the profile and mold to sink simultaneously, forming the required sinking structure and angle. The gap between the split-structure first lower mold 10 and second lower mold 9 allows "T" and "L" type profiles to smoothly enter and complete the forming process.

[0033] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. A general-purpose angled die for aircraft profiles, comprising an upper die holder (1) and a lower die holder (7), characterized in that: The upper mold base (1) is provided with a first upper mold (4) and a second upper mold (5), and the lower mold base (7) is provided with a first lower mold (10) corresponding to the first upper mold (4) and a second lower mold (9) corresponding to the second upper mold (5); an upper mold rubber pad (12) is provided between the first upper mold (4) and the upper mold base (1), and a lower mold rubber pad (13) is provided between the second lower mold (9) and the lower mold base (7); the lower mold base (7) is provided with a first lower mold (10) and a second lower mold on its side. (9) The lower mold fixing mechanism (11) is matched; the upper end of the first upper mold (4) is set with a T-shaped slider structure, and the upper mold base (1) is provided with an upper cavity structure. The T-shaped slider and the upper mold rubber pad (12) are set in the upper cavity, and a baffle (2) is set at the opening of the upper cavity; the second upper mold (5) is fixedly connected with a tie rod bolt (17), and the tie rod bolt (17) is threadedly connected to the upper mold base (1); the upper mold base (1) is provided with a locking screw (18) of the second upper mold (5) on the side.

2. The universal bevel die for aircraft profiles according to claim 1, characterized in that: A pressure-resistant partition (16) is provided between the first upper mold (4) and the upper mold rubber pad (12), a first pad (15) is provided between the second lower mold (9) and the lower mold rubber pad (13), and a second pad (14) is provided between the first lower mold (10) and the lower mold base (7).

3. The universal bevel die for aircraft profiles according to claim 2, characterized in that: The first pad (15) and the second pad (14) are provided with protrusions, and the first lower mold (10) and the second lower mold (9) are provided with grooves corresponding to the protrusions.

4. The universal bevel die for aircraft profiles according to claim 1, characterized in that: The first lower mold (10) and the second lower mold (9) are both set as split structures, and there is a gap between the split structures.

5. The universal bevel die for aircraft profiles according to claim 1, characterized in that: The lower mold fixing mechanism (11) includes a handle fixed to the side of the lower mold base (7). The handle is connected to a push rod through a linkage mechanism. The end of the push rod is provided with a top plate (8) corresponding to the first lower mold (10) and the second lower mold (9).

6. The universal bevel die for aircraft profiles according to claim 1, characterized in that: The baffle (2) is provided with a vertical sliding groove, and the baffle (2) is fixed to the upper mold base (1) by positioning bolts in the vertical flower and grass.

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