Interface-adjustable mechanical test device for aerospace product

Abstract

The present application relates to the technical field of aerospace products, and particularly relates to an interface-adjustable mechanical test device for aerospace products, which comprises a tool base body and a product to be tested connected to the tool base body, a plurality of connecting surfaces between the tool base body and the product to be tested, an interface plate assembly arranged on each connecting surface and serving as an intermediate connecting carrier between the tool base body and the product to be tested, a lower connecting hole one arranged on the tool base body, an upper adjusting hole arranged on the interface plate assembly and communicating with the lower connecting hole one, an adjusting block assembly with a side adjusting hole connected to the tool base body, and an active connection between the interface plate assembly and the adjusting block assembly through the side adjusting hole, and a hole diameter of the upper adjusting hole being greater than a hole diameter of the lower connecting hole one. The present application can adjust the adjusting block assembly and the interface plate assembly to obtain a mechanical device meeting the interface size requirements of the product, and overcomes the problem that the existing machine tools cannot directly process a mechanical device meeting the interface size requirements of the product.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aerospace products, and particularly provides an interface-adjustable mechanical test device for aerospace products. BACKGROUND

[0002] During the launching process, aerospace products are inevitably affected by vibration due to the influence of engine operation, rocket separation and POGO effect, etc. In order to ensure the smooth launching of the aerospace products, the ground vibration test is usually carried out before launching, and the vibration test is used to check whether the aerospace products can withstand the vibration in the launching process. All aerospace products need to be assisted by a mechanical device during the vibration test. With the increasing complexity of the interface structure of the aerospace products and the gradual increase of the product size, the existing mechanical processing method has limited processing capacity for large-size, multi-angle and complex products. The interface size of the mechanical device made by the mechanical processing method deviates from the product interface size, so that the traditional mechanical device cannot meet the requirements of the vibration test of the aerospace products.

[0003] As a relatively complex space structure, the researchers find that the product has unnecessary stress due to the error between the product and the interface size of the mechanical device during the mechanical test, and the product may be damaged in severe cases. In addition, the precision machining of the mechanical device interface is difficult and has low efficiency. Therefore, in order to overcome the above difficulties, how to design a mechanical test device suitable for large-size, irregular surface, multi-angle and complex interface of the aerospace product is a problem to be solved by the researchers in the field. SUMMARY

[0004] The application provides an interface-adjustable mechanical test device for aerospace products, which can be used for the mechanical test of aerospace products with complex interfaces, multiple connecting surfaces and large sizes, can avoid precision machining of the interface of the mechanical device, and can meet the adjustment requirements of the product interface size by adjusting the block assembly and the interface plate assembly.

[0005] The interface-adjustable mechanical test device for aerospace products comprises a tool base body and a product to be tested connected to the tool base body, a plurality of connecting surfaces between the tool base body and the product to be tested, and an interface plate assembly arranged on each connecting surface and serving as an intermediate connecting carrier between the tool base body and the product to be tested. A lower connecting hole one is arranged on the tool base body, and an upper adjusting hole is arranged on the interface plate assembly and communicates with the lower connecting hole one. The tool base body is connected with a block assembly with a side adjusting hole, and the interface plate assembly is movably connected with the block assembly through the side adjusting hole.

[0006] Further, a connecting piece one is matched and arranged in the upper adjusting hole and the lower connecting hole one, and the hole diameter of the upper adjusting hole is larger than that of the lower connecting hole one.

[0007] Further, the interface plate assembly comprises side connecting areas and a middle weight-reducing area between the side connecting areas, and the upper adjusting holes are uniformly distributed on the side connecting areas; the side connecting areas are further provided with upper connecting holes connected with the product to be tested.

[0008] Further, each interface plate assembly comprises at least two groups of two mutually perpendicular side end faces, and each group of two mutually perpendicular side end faces is provided with an adjusting block assembly.

[0009] Further, one group of two mutually perpendicular side end faces in each interface plate assembly is side end face one and side end face two, the side end face one is provided with one adjusting block assembly, and the side end face two is provided with two adjusting block assemblies.

[0010] Further, the adjusting block assembly is in the shape of "L", and specifically comprises a bottom plate connected with the tooling base body and a side plate connected with the interface plate assembly; the bottom plate is provided with a bottom connecting hole for connecting with the tooling base body, the side adjusting hole is arranged on the side plate, and the side adjusting hole is provided with a screw rod connected with the interface plate assembly.

[0011] Further, the tooling base body comprises a plurality of supporting ribs for supporting the connecting faces, and the supporting ribs are provided with weight-reducing through holes.

[0012] Further, the tooling base body comprises a base, and the connecting faces and the supporting ribs are arranged on the base; the edge section of the base is provided with a lifting hole and a mounting hole connected with the test bench.

[0013] Further, the middle weight-reducing area is provided with a weight-reducing groove.

[0014] Further, the interface plate assembly is in the shape of a flat plate.

[0015] Compared with the prior art, the present application can achieve the following beneficial effects:

[0016] 1、According to the specifications of the connecting faces between the product to be tested and the tooling base body, the present application sets the interface plate assembly matched with the connecting faces between the tooling base body and the product to be tested, and connects the connecting faces of the tooling base body and the product to be tested by the interface plate assembly as an intermediate connecting carrier between the tooling base body and the product to be tested, so that the test device can overcome the difficulty of large machining error of the mechanical processing equipment, and the interface plate assembly has adjustment capability on the tooling base body.

[0017] 2、The present application sets the adjusting block assembly on the tooling base body, which can adjust the overall position of the interface plate assembly on the connecting face through the adjusting block assembly, and can assemble and adjust the mechanical device meeting the product interface size requirements through the adjusting block assembly and the interface plate assembly, so that the interface of the tooling base body in the mechanical device can be avoided to be finished, the machining and test efficiency can be improved, and the product can be avoided to be damaged. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the mechanical testing device provided according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the tooling base provided according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment block assembly provided in an embodiment of the present invention;

[0021] Figures 4-10 This is a schematic diagram of the structure of an interface board assembly provided according to an embodiment of the present invention;

[0022] Figure 11 This is a schematic diagram of the connection between the interface board assembly and the adjustment block assembly on the third connection surface according to an embodiment of the present invention;

[0023] Figure 12 This is a schematic diagram of the connection between the interface board assembly and the adjustment block assembly on the second connection surface according to an embodiment of the present invention.

[0024] The reference numerals in the attached drawings include: tooling base 1, screw 2, interface plate assembly 3, lower connecting hole 1 4, upper adjusting hole 5, adjusting block assembly 6, side adjusting hole 7, side connecting area 8, middle weight reduction area 9, upper connecting hole 10, side end face 11, side end face 2 12, base plate 13, bottom connecting hole 14, side plate 15, support rib 16, weight reduction through hole 17, base 18, lifting hole 19, mounting hole 20, weight reduction groove 21, lower connecting hole 22, connecting surface 23, connecting surface 3 24, connecting surface 4 25, connecting surface 5 26, connecting surface 6 27, connecting surface 1 28. Detailed Implementation

[0025] The appendix will be referenced below. Figures 1-12 Embodiments of the present invention are described below. In the following description, the same modules are denoted by the same reference numerals. Where the same reference numerals are used, their names and functions are also the same. Therefore, their detailed description will not be repeated.

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the following description is provided in conjunction with the appendix. Figure 1 -Appendix Figure 12 The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and do not constitute a limitation thereof.

[0027] An interface-adjustable aerospace product mechanical testing device includes a tooling base 1, to which the product to be tested is connected, such as... Figure 2As shown, the tooling base 1 and the product to be tested include multiple connecting surfaces. The tooling base 1 includes a base 18. The edge section of the base 18 is provided with a lifting hole 19 and an installation hole 20 for connecting to the test bench. The tooling base 1 also includes multiple support ribs 16 for supporting each connecting surface. The support ribs 16 are provided with weight reduction through holes 17. Each connecting surface and support rib 16 are provided on the base 18.

[0028] like Figure 1 , Figure 2 As shown, each connection surface is provided with an interface plate assembly 3. The interface plate assembly 3 serves as an intermediate connection carrier between the tooling base 1 and the product to be tested. The connection accuracy between the product to be tested and the tooling base 1 is adjusted through the interface plate assembly 3 to meet the requirements of the connection interface. Thus, the interface connection requirements can be met without the need for precision machining of the interface on the tooling base 1. This is not limited by the difficulty of the machining process and improves the machining efficiency and testing efficiency.

[0029] The tooling base 1 is provided with a lower connecting hole 4, and the interface plate assembly 3 is provided with an upper adjusting hole 5 that communicates with the lower connecting hole 4. A connector is provided in the upper adjusting hole 5 and the lower connecting hole 4. The diameter of the upper adjusting hole 5 is larger than the diameter of the lower connecting hole 4. The connector can adjust the lower connecting hole 4 through the larger upper adjusting hole 5, which can overcome the difficulty of large machining errors of the machining equipment. By increasing the size of the upper adjusting hole 5 on the interface plate assembly 3, the interface plate assembly 3 has the ability to be adjusted on the tooling base 1.

[0030] The interface board assembly 3 includes a side connection area 8 and a central weight reduction area 9 located between the side connection area 8. The central weight reduction area 9 is provided with a weight reduction groove 21, and upper adjustment holes 5 are evenly distributed on the side connection area 8. The side connection area 8 is also provided with an upper connection hole 10 for connecting with the product to be tested. This can not only achieve a stable connection between the product to be tested and the tooling base 1 on the side of the interface board assembly 3, but also meet the requirements of lightweighting, saving materials and costs.

[0031] An adjustment block assembly 6 with side adjustment holes 7 is connected to the tooling base 1. The interface plate assembly 3 is movably connected to the adjustment block assembly 6 through the side adjustment holes 7. Figure 3As shown, the adjustment block assembly 6 is generally L-shaped, specifically including a base plate 13 connected to the tooling base 1 and a side plate 15 connected to the interface plate assembly 3. The base plate 13 is provided with a bottom connection hole 14 for connecting to the tooling base 1. The tooling base 1 is provided with a lower connection hole 22 that matches the bottom connection hole 14. The side adjustment hole 7 is opened on the side plate 15. The side adjustment hole 7 is provided with a screw 2 connected to the interface plate assembly 3. After the interface plate assembly 3 is initially installed on the tooling base 1, the interface plate assembly 3 is measured using a precision measuring device. After detecting the error, the screw 2 on the adjustment block assembly 6 is adjusted so that the interface plate assembly 3 is moved by the screw 2 until the measurement result meets the product requirements.

[0032] like Figure 1 As shown, each interface plate assembly 3 includes at least two sets of mutually perpendicular side end faces. Each set of two mutually perpendicular side end faces is provided with an adjustment block assembly 6. Specifically, each set of two mutually perpendicular side end faces in each interface plate assembly 3 is side end face one 11 and side end face two 12. Side end face one 11 has one adjustment block assembly 6, and side end face two 12 has two adjustment block assemblies 6. The angles of the interface plate assembly 3 can be adjusted using these three adjustment block assemblies 6. The interface plate assembly 3 has a flat plate structure, and its size is much smaller than the size of the entire mechanical device. Compared to directly machining the interface holes on the mechanical device, the upper connecting hole 10 and upper adjustment hole 5 of the interface plate assembly 3 have higher machining precision and are easier to machine.

[0033] In this embodiment, the tooling base 1 and the product to be tested include the following: Figure 2 The six connecting surfaces shown are connecting surface 1 (28), connecting surface 2 (23), connecting surface 3 (24), connecting surface 4 (25), connecting surface 5 (26), and connecting surface 6 (27). Each connecting surface is equipped with an interface board assembly 3. Connecting surface 1 (28) has one interface board assembly 3 on each of its two sides, while the other connecting surfaces each have one interface board assembly 3. The seven interface board assemblies 3 are respectively as follows... Figures 4-10 As shown, Figure 4 , Figure 5 and Figure 10 The interface board assembly 3 has a rectangular structure, including a central weight-reduction zone 9 and side connection zones 8 located on both sides of the central weight-reduction zone 9. The upper adjustment hole 5 and the upper connection hole 10 are both located on the side connection zones 8. Figure 4 and Figure 5 The interface board components 3 are evenly distributed on the connection surface 28. Figure 10 The interface board assembly 3 is disposed on the connection surface 27; Figure 6 The interface board assembly 3 includes three side connection areas 8 and a central weight reduction area 9 located between the three side connection areas 8. Figure 6 The interface board assembly 3 is disposed on the connection surface 24; Figure 7、 Figure 8 The interface plate assembly 3 in the embodiment is in a cuboid structure as a whole, the side connecting area 8 is located on the circumferential outside of the middle weight-reducing area 9, the upper adjusting hole 5 and the upper connecting hole 10 are also arranged uniformly along the circumference, Figure 7 、 Figure 8 The interface plate assembly 3 in the embodiment is arranged on the connecting surface two 23 and the connecting surface four 25 respectively. Figure 9 The interface plate assembly 3 in the embodiment includes four side connecting areas 8 and a middle weight-reducing area 9 located between the four side connecting areas 8, Figure 9 The interface plate assembly 3 in the embodiment is arranged on the connecting surface five 26. Those skilled in the art can also arrange connecting surfaces of other quantities and specifications and the interface plate assemblies 3 thereof according to actual conditions.

[0034] For the arrangement of the adjusting block assembly 6, taking the interface plate assembly 3 on the connecting surface three 24 and the connecting surface two 23 as an example, as shown in Figure 11 , on the interface plate assembly 3 on the connecting surface three 24, one adjusting block assembly 6 is arranged on the side end surface one 11, and two adjusting block assemblies 6 are arranged on the side end surface two 12. The screw rod 2 is arranged between the adjusting block assembly 6 and the interface plate assembly 3, and the position of the interface plate assembly 3 is adjusted by driving the interface plate assembly 3 to move through the extension and retraction of the screw rod 2. Under the action of the three adjusting block assemblies 6, the interface plate assembly 3 can move along a straight line or rotate. Figure 12 The arrangement and adjustment principle of the adjusting block assembly 6 in the interface plate assembly 3 on the connecting surface two 23 in the embodiment are similar to those in the embodiment. Figure 11

[0035] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

[0036] The specific embodiments of the present application do not constitute a limitation on the protection scope of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.​

Claims

1. An interface-adjustable mechanical test device for aerospace products, characterized in that, The utility model provides a test device for product, including tool base (1) and the product to be tested is connected on tool base (1), a plurality of connecting surfaces are included between tool base (1) and the product to be tested, interface plate assembly (3) is equipped respectively on each connecting surface and is used as the intermediate connecting carrier between tool base (1) and the product to be tested by interface plate assembly (3);Lower connecting hole one (4) is equipped on tool base (1), and upper adjusting hole (5) is equipped on interface plate assembly (3) and is communicated with lower connecting hole one (4);Adjusting block assembly (6) with side adjusting hole (7) is connected on tool base (1), and interface plate assembly (3) is movably connected with adjusting block assembly (6) through side adjusting hole (7); The interface plate assembly (3) includes a side connecting area (8) and a middle weight reduction area (9) located between the side connecting areas (8), and the upper adjusting holes (5) are evenly distributed on the side connecting areas (8); The upper connecting holes (10) connected to the product to be tested are also provided on the side connecting areas (8). Each interface plate assembly (3) includes at least two groups of two side end faces perpendicular to each other, and each group of two side end faces perpendicular to each other is provided with an adjusting block assembly (6). The adjusting block assembly (6) is in the shape of "L" as a whole, specifically including a bottom plate (13) connected to the tool base (1) and a side plate (15) connected to the interface plate assembly (3); The bottom plate (13) is provided with a bottom connecting hole (14) for connecting to the tool base (1), and the side adjusting hole (7) is provided on the side plate (15), and the side adjusting hole (7) is provided with a screw rod (2) connected to the interface plate assembly (3).

2. The interface-adjustable space product mechanical test device according to claim 1, characterized in that, The upper adjusting hole (5) and the lower connecting hole one (4) are matched with a connecting piece one, and the hole diameter of the upper adjusting hole (5) is larger than that of the lower connecting hole one (4).

3. The interface-adjustable space product mechanical test device according to claim 1, characterized in that, One group of two side end faces perpendicular to each other in each interface plate assembly (3) is respectively a side end face one (11) and a side end face two (12), and one adjusting block assembly (6) is provided on the side end face one (11), and two adjusting block assemblies (6) are provided on the side end face two (12).

4. The interface-adjustable space product mechanical test device according to claim 1, characterized in that, The tool base (1) includes a plurality of support ribs (16) for supporting each connecting surface, and the support ribs (16) are provided with weight reduction through holes (17).

5. The interface-adjustable space product mechanical test device according to claim 4, characterized in that, The tool base (1) includes a base (18), and each connecting surface and the support rib (16) are provided on the base (18); The edge section of the base (18) is provided with a lifting hole (19) and a mounting hole (20) connected to the test bench.

6. The interface-adjustable space product mechanical test device according to claim 5, characterized in that, The middle weight reduction area (9) is provided with a weight reduction groove (21).

7. The interface-adjustable space product mechanical test device according to any one of claims 3-6, characterized in that, The interface plate assembly (3) is in the shape of a flat plate as a whole.

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