Aerospace test piece multifunctional clamping platform

Abstract

The utility model relates to test clamping platform technical field discloses a kind of aerospace test piece multifunctional clamping platform, including base frame and the multifunctional clamping mechanism of being located on it;The multifunctional clamping mechanism includes installation platform, adjustable holder and sealed box, platform also includes vacuumizing mechanism, the connecting pipe inner wall of the vacuumizing mechanism is fixed with aperture sheet and fixed plate, aperture is equipped on the aperture sheet, the rubber conical sheet is located between the aperture sheet and the fixed plate, the rubber conical sheet is fixedly connected by the sliding rod, the sliding rod is slidably arranged in the fixed plate, the sliding rod is fixed with the limit ring. The utility model can utilize atmospheric pressure to automatically close air hole when vacuum pump stops by the non-return structure, and the sealing reliability is high;It has flexible adjustable clamping function simultaneously, and the structure integration degree is high.

Description

Technical Field

[0001] This utility model relates to the field of test clamping platform technology, and in particular to a multi-functional clamping platform for aerospace test pieces. Background Technology

[0002] The aerospace industry has extremely high requirements for the reliability of components. Therefore, test pieces must undergo rigorous environmental simulation tests before being put into use, such as high and low temperature, vibration, and vacuum environment tests.

[0003] Existing test platforms typically need to provide two basic functions: first, to securely clamp and fix test pieces of different shapes; and second, to build and maintain specific test environments, especially vacuum environments.

[0004] When creating a vacuum environment, the platform typically uses a sealed chamber and a vacuum pump to evacuate the air. However, once the vacuum pump has finished evacuating and stopped working, preventing outside air from flowing back through the evacuation lines is crucial for maintaining the vacuum state inside the sealed chamber.

[0005] In existing technical solutions, some platforms rely on manual valves for closure, which is cumbersome to operate and prone to sealing failure due to human error. Other platforms attempt to use automatic check valves, but these check valves may have problems with poor sealing and reverse leakage under the huge pressure difference between vacuum and atmospheric pressure, or their complex structure and high cost make them difficult to integrate into compact test platforms.

[0006] Therefore, there is an urgent need for a device with a simple structure, reliable sealing, and the ability to automatically maintain vacuum using pressure difference, so as to integrate it into a multi-functional clamping platform and improve the automation and reliability of aerospace testing.

[0007] Therefore, this utility model proposes a multi-functional clamping platform for aerospace test pieces to overcome the shortcomings of the prior art. Utility Model Content

[0008] In view of the problems existing in the multi-functional clamping platform for aerospace test pieces, such as low automation of vacuum holding structure, insufficient sealing reliability, and difficulty in adapting to clamping various test pieces when integrating adjustable clamping function and vacuum sealing environment, this utility model aims to provide a multi-functional clamping platform for aerospace test pieces with improved structure that can effectively solve the above problems.

[0009] This utility model provides a multi-functional clamping platform for aerospace test pieces, comprising: a base frame; and a multi-functional clamping mechanism mounted on the top of the base frame; the multi-functional clamping mechanism includes a mounting platform fixedly connected to the top of the base frame, the top of the mounting platform having multiple mounting holes, an adjustable clamp movably mounted on the top of the mounting platform by bolts, and a sealing box; the platform also includes a vacuuming mechanism, and the mounting platform having an air intake.

[0010] The vacuuming mechanism includes a vacuum pump installed inside the base frame and a connecting pipe, one end of which is connected to the vacuum pump and the other end of which is fixedly connected to the air intake.

[0011] Furthermore, the perforated plate and the fixing plate are fixedly connected to the inner wall of the connecting pipe. The perforated plate has the air hole, and the fixing plate is located below the perforated plate. The platform also includes the rubber conical plate and the sliding rod. The rubber conical plate is located between the perforated plate and the fixing plate. The upper end of the sliding rod is fixedly connected to the rubber conical plate. The sliding rod slides through the fixing plate, and the limiting ring is fixed to the outer wall of the sliding rod.

[0012] Preferably, the multi-functional clamping mechanism further includes the mounting groove and the sealing strip; the mounting groove is fixed to the top of the base frame, and the sealing strip is provided in the internal groove of the mounting groove. The sealing strip is preferably made of elastic rubber material to provide good sealing performance. The sealing box is detachably installed in the mounting groove and fits tightly with the sealing strip, together forming a reliable sealing space between the mounting platform and the sealing box.

[0013] Preferably, the multifunctional clamping mechanism further includes the tempered glass; the tempered glass is fixed around the sealed box, which allows the operator to intuitively observe the state of the test piece inside the sealed box, improving the visualization of the test.

[0014] Preferably, the multifunctional clamping mechanism further includes the reinforcing rib; the reinforcing rib is connected to the inside of the sealed box, and especially when the sealed box is evacuated, the reinforcing rib can effectively resist atmospheric pressure, prevent the sealed box from deforming, and ensure the stability of the structure.

[0015] Preferably, two limiting rings are fixed to the outer wall of the sliding rod, and the two limiting rings are respectively located on both sides of the fixed plate; the two limiting rings limit the sliding stroke of the sliding rod through the fixed plate, ensuring that the rubber cone plate can be effectively opened and accurately reset when closed, avoiding excessive displacement.

[0016] Preferably, the rubber conical plate has a tapered tip that faces the opening plate; this structure allows the rubber conical plate to form a line seal or surface seal with the opening plate when closed, resulting in a better sealing effect under pressure difference.

[0017] Preferably, the bottom of the base frame is fixed with the foot; the foot is used to support the entire platform and its height can be adjusted to ensure that the installation platform is level.

[0018] Preferably, the platform further includes the pipeline circuit box, which is fixed inside the base frame; this integrated design allows the power supply and control circuit of the vacuum pump to be centrally housed, protecting the pipelines and circuits and making the overall structure neater.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model solves the problem in the prior art that vacuum test platforms require complex manual valves or unreliable check valves to maintain vacuum after the vacuum pump stops working, resulting in poor sealing effect or cumbersome operation, by setting an automatic check structure consisting of a rubber conical plate, an opening plate, a sliding rod and a fixing plate inside the connecting pipe. It achieves the technical effect of automatically sealing the air hole by using atmospheric pressure when the vacuum pump stops, reliably maintaining the vacuum state in the sealed box, with a simple structure and a high degree of automation.

[0021] 2. This utility model solves the problem that existing clamping platforms have fixed structures, making it difficult to adapt to aerospace test pieces of different shapes and sizes, resulting in poor versatility, by setting multiple mounting holes on the mounting platform and using a movable and adjustable clamp. It achieves the technical effect of flexibly adjusting the clamping position and improving the versatility and applicability of the platform clamping.

[0022] 3. This utility model solves the problems of scattered components, large footprint, and chaotic pipeline layout in existing test equipment by integrating the multi-functional clamping mechanism, vacuuming mechanism, and pipeline circuit box onto the base frame, thus achieving a compact structure, reasonable layout, and high integration. Attached Figure Description

[0023] Figure 1 This is a perspective view of a multi-functional clamping platform for aerospace test pieces proposed in this utility model;

[0024] Figure 2 An exploded view of the adjustable clamp of a multi-functional clamping platform for aerospace test pieces proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 A schematic diagram of the air vents in a multi-functional clamping platform for aerospace test pieces proposed in this utility model;

[0027] Figure 5 This is a cross-sectional schematic diagram of the connecting pipe of a multi-functional clamping platform for aerospace test pieces proposed in this utility model.

[0028] Legend:

[0029] 1. Base frame; 2. Feet; 3. Multifunctional clamping mechanism; 301. Adjustable clamp; 302. Mounting platform; 303. Mounting hole; 304. Sealing box; 305. Mounting groove; 306. Tempered glass; 307. Sealing strip; 308. Reinforcing rib; 4. Vacuuming mechanism; 401. Vacuum pump; 402. Rubber conical plate; 403. Air hole; 404. Air intake; 405. Opening plate; 406. Connecting pipe; 407. Fixing plate; 408. Sliding rod; 409. Limiting ring; 5. Pipeline and circuit box. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Example:

[0032] Please refer to Figures 1 to 5 This utility model provides a multi-functional clamping platform for aerospace test pieces, which aims to solve the problem that in the prior art, when test platforms integrate adjustable clamping functions and vacuum sealing environments, the degree of automation of their vacuum holding structure is not high or the sealing reliability is insufficient.

[0033] like Figure 1 As shown, this multi-functional clamping platform for aerospace test pieces includes a base frame 1 and a multi-functional clamping mechanism 3 mounted on top of the base frame 1. The base frame 1 serves as the mounting base for the entire platform, while the multi-functional clamping mechanism 3 is used to clamp and fix the test pieces and construct a sealed environment. Specifically, the multi-functional clamping mechanism 3 includes a mounting platform 302, which is fixedly connected to the top of the base frame 1. The top of the mounting platform 302 has multiple mounting holes 303. The multi-functional clamping mechanism 3 also includes an adjustable clamp 301, which is movably mounted on the top of the mounting platform 302 by bolts. Please refer to... Figure 1 , Figure 2 and Figure 3 The multi-functional clamping mechanism 3 also includes a mounting groove 305 and a sealing strip 307. The mounting groove 305 is fixed to the top of the base frame 1, and the sealing strip 307 is provided in the internal groove of the mounting groove 305. The multi-functional clamping mechanism 3 also includes a sealing box 304, which is detachably installed in the mounting groove 305 and cooperates with the sealing strip 307. The sealing box 304 and the mounting platform 302 together form a sealed space. The multi-functional clamping mechanism 3 also includes tempered glass 306, which is fixed around the sealing box 304. The multi-functional clamping mechanism 3 also includes reinforcing ribs 308, which are connected to the inside of the sealing box 304. Please refer to... Figure 4 and Figure 5 The platform also includes a vacuum mechanism 4. To achieve vacuuming, an air intake 404 is provided on the mounting platform 302. The vacuum mechanism 4 includes a vacuum pump 401 and a connecting pipe 406. The vacuum pump 401 is installed inside the base frame 1. One end of the connecting pipe 406 is connected to the vacuum pump 401, and the other end is fixedly connected to the air intake 404. An opening plate 405 and a fixing plate 407 are fixedly connected to the inner wall of the connecting pipe 406. An air hole 403 is provided on the opening plate 405, and the fixing plate 407 is located below the opening plate 405. The platform also includes a rubber conical plate 402 and a sliding rod 408. The conical plate 402 is located between the perforated plate 405 and the fixed plate 407, and the conical tip of the rubber conical plate 402 faces the perforated plate 405. The upper end of the sliding rod 408 is fixedly connected to the rubber conical plate 402, and the sliding rod 408 slides through the fixed plate 407. The outer wall of the sliding rod 408 is fixed with a limiting ring 409. More specifically, the outer wall of the sliding rod 408 is fixed with two limiting rings 409, and the two limiting rings 409 are located on both sides of the fixed plate 407. The platform also includes a pipeline circuit box 5, which is fixed inside the base frame 1. The bottom of the base frame 1 is fixed with a foot 2.

[0034] To solve the above-mentioned technical problems, the core of the technical solution of this embodiment is that the multi-functional clamping platform for aerospace test pieces also includes a vacuuming mechanism 4, and the vacuuming mechanism 4 forms a specific structural fit and connection relationship with the aforementioned base frame 1 and the mounting platform 302 of the multi-functional clamping mechanism 3.

[0035] Please refer to the following carefully. Figure 1 , Figure 4 and Figure 5The vacuum mechanism 4 includes a vacuum pump 401 and a connecting pipe 406. The vacuum pump 401 is installed inside the base frame 1. One end of the connecting pipe 406 is connected to the vacuum pump 401, and the other end is fixedly connected to the air intake 404 opened on the mounting platform 302. An opening plate 405 is fixedly connected to the inner wall of the connecting pipe 406, and an air hole 403 is opened on the opening plate 405. A fixing plate 407 is also fixedly connected to the inner wall of the connecting pipe 406. The fixing plate 407 is located below the opening plate 405, and its function is to provide guidance and limit for the sliding parts. At the same time, the platform also includes a rubber conical plate 402 and a sliding rod 408. The rubber conical plate 402 is located at... Between the perforated plate 405 and the fixed plate 407, the conical tip of the rubber conical plate 402 faces the perforated plate 405; the upper end of the sliding rod 408 is fixedly connected to the rubber conical plate 402, and in the assembled state, the sliding rod 408 slides through the fixed plate 407; a limit ring 409 is fixed to the outer wall of the sliding rod 408, more specifically, two limit rings 409 are fixed to the outer wall of the sliding rod 408, and the two limit rings 409 are respectively located on both sides of the fixed plate 407; this automatic check structure composed of the rubber conical plate 402, the perforated plate 405, the fixed plate 407, the sliding rod 408 and the limit rings 409 ensures the reliable maintenance of the vacuum environment.

[0036] The wiring box 5 is fixed inside the base frame 1 and is used for the installation of power supply and wiring. Its specific internal structure is well known in the art and will not be described in detail here.

[0037] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0038] As a preferred implementation method, please refer to... Figure 1 and Figure 2 The multi-functional clamping mechanism 3 also includes a mounting groove 305 and a sealing strip 307; the mounting groove 305 is fixed to the top of the base frame 1, and the sealing strip 307 is provided in the internal groove of the mounting groove 305; the sealing box 304 is detachably installed in the mounting groove 305 and cooperates with the sealing strip 307, and the sealing box 304 and the mounting platform 302 together form a sealed space.

[0039] As a preferred embodiment, please refer to Figure 1 The multi-functional clamping mechanism 3 also includes tempered glass 306; the tempered glass 306 is fixed around the sealed box 304.

[0040] In a preferred embodiment, the multi-functional clamping mechanism 3 further includes a reinforcing rib 308; the reinforcing rib 308 is connected to the interior of the sealing box 304.

[0041] As a preferred embodiment, please refer to Figure 5Two limiting rings 409 are fixed to the outer wall of the sliding rod 408, and the two limiting rings 409 are located on both sides of the fixing plate 407 respectively.

[0042] As a preferred embodiment, please refer to Figure 5 The conical tip of the rubber conical plate 402 faces the perforated plate 405.

[0043] As a preferred embodiment, please refer to Figure 1 The bottom of the base frame 1 is fixed with base feet 2.

[0044] As a preferred embodiment, please refer to Figure 1 The platform also includes a pipeline circuit box 5, which is fixed inside the base frame 1.

[0045] The working principle of this utility model's multi-functional clamping platform for aerospace test pieces is as follows:

[0046] In use, the base feet 2 are fixed to the bottom of the base frame 1 to support the entire platform. The multi-functional clamping mechanism 3 is located at the top of the base frame 1, and the adjustable clamp 301 on it moves on the mounting platform 302 by bolts to clamp test pieces of different specifications. The pipeline circuit box 5 is fixed inside the base frame 1 to provide power and pipeline support for the platform.

[0047] When a sealed environment test is required, the sealing box 304 is installed in the mounting groove 305. The sealing box 304 presses against the sealing strip 307 in the mounting groove 305, thus forming a sealed space together with the mounting platform 302. The reinforced glass 306 around the sealing box 304 is used for visual observation of the test process, and the reinforcing ribs 308 are used for structural reinforcement when the sealing box 304 is under vacuum.

[0048] The vacuum pumping mechanism 4 is used to provide a vacuum environment for the experiment. When the vacuum pump 401 is started, the vacuum pump 401 evacuates the air inside the sealed box 304 through the connecting pipe 406. The air pressure inside the sealed box 304 decreases. This air pressure pushes the rubber cone plate 402 downward and away from the opening plate 405 under the guidance of the sliding rod 408 and the limiting of the two limiting rings 409 and the fixing plate 407. At this time, the airflow inside the sealed box 304 is discharged by the vacuum pump 401 through the air intake 404, the air hole 403, and the connecting pipe 406. When the vacuum pump 401 is turned off, the vacuum pump 401 stops working, and the pressure on one side of the connecting pipe 406, i.e., the atmospheric pressure, rises. This atmospheric pressure pushes the rubber cone plate 402 upward from below and makes it tightly close the air hole 403 on the opening plate 405. Through this automatic sealing action, the backflow of external gas is prevented, thereby reliably maintaining the vacuum environment inside the sealed box 304.

Claims

1. A multi-functional clamping platform for aerospace test pieces, comprising: Base frame (1); A multi-functional clamping mechanism (3) is installed on the top of the base frame (1); The multi-functional clamping mechanism (3) includes: The mounting platform (302) is fixedly connected to the top of the base frame (1), and the top of the mounting platform (302) is provided with multiple mounting holes (303); An adjustable clamp (301) is movably mounted to the top of the mounting platform (302) by bolts. And a sealed box (304); The platform is characterized by further including a vacuum mechanism (4), and an air intake (404) is provided on the mounting platform (302). The vacuum mechanism (4) includes a vacuum pump (401) and a connecting pipe (406). The vacuum pump (401) is installed inside the base frame (1). One end of the connecting pipe (406) is connected to the vacuum pump (401), and the other end is fixedly connected to the air intake (404). An opening plate (405) and a fixing plate (407) are fixedly connected to the inner wall of the connecting pipe (406). The platform (405) has an air hole (403) and the fixing plate (407) is located below the opening plate (405). The platform also includes a rubber conical plate (402) and a sliding rod (408). The rubber conical plate (402) is located between the opening plate (405) and the fixing plate (407). The upper end of the sliding rod (408) is fixedly connected to the rubber conical plate (402), and the sliding rod (408) slides through the fixing plate (407). A limit ring (409) is fixed to the outer wall of the sliding rod (408).

2. The multi-functional clamping platform for aerospace test pieces according to claim 1, characterized in that, The multi-functional clamping mechanism (3) further includes: a mounting groove (305) and a sealing strip (307); the mounting groove (305) is fixed to the top of the base frame (1), the sealing strip (307) is provided in the internal groove of the mounting groove (305), the sealing box (304) is detachably installed in the mounting groove (305) and cooperates with the sealing strip (307), and the sealing box (304) and the mounting platform (302) together form a sealed space.

3. The multi-functional clamping platform for aerospace test pieces according to claim 1, characterized in that, The multi-functional clamping mechanism (3) also includes tempered glass (306), which is fixed around the sealed box (304).

4. The multi-functional clamping platform for aerospace test pieces according to claim 3, characterized in that, The multi-functional clamping mechanism (3) also includes a reinforcing rib (308), which is connected to the interior of the sealing box (304).

5. The multi-functional clamping platform for aerospace test pieces according to claim 1, characterized in that, Two limiting rings (409) are fixed to the outer wall of the sliding rod (408), and the two limiting rings (409) are respectively located on both sides of the fixing plate (407).

6. The multi-functional clamping platform for aerospace test pieces according to claim 1, characterized in that, The conical tip of the rubber conical plate (402) faces the perforated plate (405).

7. The multi-functional clamping platform for aerospace test pieces according to claim 1, characterized in that, The bottom of the base frame (1) is fixed with feet (2).

8. The multi-functional clamping platform for aerospace test pieces according to claim 1, characterized in that, The platform also includes a pipeline circuit box (5), which is fixed inside the base frame (1).

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