A rigid substrate side-tertiary part drawing force testing device

Abstract

The application provides a rigid substrate side embedded part drawing force testing device, which is applied to the technical field of composite material structure design and manufacturing, and is connected with a rigid substrate sample side embedded part through a loading stud, and is connected with the substrate through a force transmission adjusting assembly, and then the drawing force of an external testing machine is transmitted to the loading stud through a testing machine joint, so that the accurate application and testing of the drawing force of the rigid substrate side embedded part are realized, different thread specifications, hole spacings and thickness deviations of the sample can be adapted, the error of traditional manual handheld testing is significantly reduced, the accuracy and consistency of the testing are improved, reliable mechanical property data support is provided for the structure design and process optimization of the rigid substrate, and the structure reliability and production efficiency of the frameless solar wing substrate are effectively improved.

Description

Technical Field

[0001] This application relates to the field of composite material structure design and manufacturing technology, specifically to a rigid substrate side-embedded part pull-out force device. Background Technology

[0002] A rigid substrate for solar panels is generally assembled from upper and lower mesh skins, an aluminum honeycomb core, carbon fiber hinge joints, a frame, embedded parts, and clamping points. After production, silicone rubber is coated on the polyimide film surface of the substrate to attach the solar cells, and a ground deployment simulation test is conducted. During this process, the substrate needs to be fixed, hoisted, and transported by embedded parts distributed around its sides. Its mechanical reliability is directly related to the overall structural stability.

[0003] As competition in the commercial space industry intensifies, higher demands are being placed on the development cost and delivery cycle of satellite solar array energy systems. Frameless rigid substrate solar arrays have gradually become the mainstream design because they reduce the frame winding and bonding processes, significantly improving production efficiency and reducing costs.

[0004] However, the frameless design means that the weight of the substrate and the cells are entirely borne by the side embedded parts during mounting and ground deployment tests. This makes pull-out force testing of the side embedded parts crucial. Accurate pull-out force testing not only provides a basis for embedded part placement and local reinforcement design of the mesh skin, but also has important guiding significance for optimizing the amount of foam filling material in the honeycomb core and improving the molding process.

[0005] In the prior art, a "Pull-out Test Fixture for Front Embedded Parts of Adhesive Aluminum Honeycomb Sandwich Structure" is disclosed, but it is only applicable to front embedded part testing and cannot simulate the special working conditions of side embedded parts in subsequent substrate bonding and battery cell base surface simulation unfolding tests. Due to the significant differences in the force direction of the side embedded parts, the design of the adhesive aluminum honeycomb sandwich structure, and process parameters, directly using the existing fixture will lead to test deviations and may even damage the sample structure.

[0006] Therefore, a device is needed for testing the pull-out force of side-embedded parts. Utility Model Content

[0007] In view of this, the embodiments of this specification provide a rigid substrate side embedded part pull-out force testing device, which can test the pull-out force of the rigid substrate side embedded part, ensure the consistency and accuracy of the pull-out force test, and has important guiding significance for the side embedded part arrangement, local reinforcement of the mesh skin and the structural design of the foam filling amount at the honeycomb core, and molding process.

[0008] The embodiments in this specification provide the following technical solutions:

[0009] This specification provides an embodiment of a rigid substrate side embedded part pull-out force testing device, including: a loading stud 1, a force transmission adjustment assembly 2, a testing machine connector 6, a crossbeam 7, and a rigid substrate sample 11;

[0010] One end of the loading stud 1 is connected to the embedded part 1104 on the side of the rigid substrate sample 11, and the other end is connected to the force transmission adjustment assembly 2, which is used to transmit the pulling force to the embedded part 1104 on the side of the rigid substrate sample 11.

[0011] The rigid substrate sample 11 is provided with crossbeams 7 on both sides, and the crossbeams 7 are connected to the rigid substrate sample 11 by the force transmission adjustment assembly 2.

[0012] The testing machine connector 6 is mounted on the crossbeam 7 via the flange shaft 5, and is used to transmit the pull-out force applied by the external testing machine to the loading stud 1.

[0013] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0014] By connecting the loading stud to the pre-embedded part on the side of the rigid substrate sample and connecting the crossbeam to the substrate using the force transmission adjustment component, the pull-out force of the external testing machine is transmitted to the loading stud through the testing machine connector. This enables the precise application and testing of the pull-out force of the pre-embedded part on the side of the rigid substrate. It can support the adaptation of samples with different thread specifications, hole spacing and thickness deviations, significantly reducing the error of traditional manual handheld testing, improving the accuracy and consistency of testing, providing reliable mechanical performance data support for the structural design and process optimization of rigid substrates, and effectively improving the structural reliability and production efficiency of frameless solar panel substrates. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the solar panel rigid substrate side pull-out force testing device in this application;

[0017] Figure 2 This is a schematic diagram of the rigid substrate sample structure in this application;

[0018] Figure 3 This is a schematic diagram of the loading stud structure in this application;

[0019] In the figure: 1. Loading stud; 2. Force transmission adjustment assembly; 201. Adapter; 202. Loading seat; 203. Second pin; 204. Fastener; 205. First fixing part; 3. First pin; 4. Bearing retaining ring; 5. Flange shaft; 6. Testing machine joint; 7. Crossbeam; 11. Rigid substrate specimen; 1101. First grid panel; 1102. Second grid panel; 1103. Honeycomb core; 1104. Embedded part. Detailed Implementation

[0020] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0021] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0023] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0025] In the production and testing of rigid substrates for satellite solar panels, frameless designs are widely used due to their high efficiency and low cost. However, this design results in the substrate's own weight and the weight of the solar cells being entirely borne by the side embedded parts. Existing pull-out force testing devices are mainly designed for front embedded parts and cannot meet the testing requirements of side embedded parts. For example, a Chinese utility model patent discloses a "Pull-out Test Fixture for Front Embedded Parts of Adhesive Aluminum Honeycomb Sandwich Structure," but this device is only applicable to front embedded parts and cannot solve the pull-out force testing problem of side embedded parts.

[0026] In view of this, the inventors discovered through research and improvement that: side-embedded parts need to bear the weight of the substrate and the solar cells, therefore the reliability of their pull-out force must be ensured. However, existing pull-out force testing devices are mainly for front-facing embedded parts and cannot meet the testing requirements of side-facing embedded parts.

[0027] Further improvements to the embedded part testing function revealed that the hole positions, thread specifications, and thicknesses of embedded parts vary across different substrates, and the existing testing equipment cannot accommodate samples with different specifications and hole spacings.

[0028] Based on this, the embodiments of this specification propose a device for testing the pull-out force of a rigid substrate side embedded part: such as Figure 1 As shown, by directly connecting the loading stud 1 to the embedded part 1104 and combining the force transmission adjustment component 2 with the crossbeam 7, the pull-out force applied by the external testing machine is accurately transmitted to the side embedded part 1104. The crossbeam 7 serves as a support frame, symmetrically arranged on both sides to balance the load. The rigid connection between the testing machine joint 6 and the flange shaft 5 ensures a stable force transmission path. This solves the problem of large human error caused by handheld tensile testing in traditional methods, achieving high precision, high versatility, and standardized process for side embedded part pull-out force testing, providing reliable data support for substrate structure optimization and process improvement.

[0029] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0030] like Figure 1 As shown in the embodiment of this specification, a rigid substrate side embedded part pull-out force testing device is provided, including: loading stud 1, force transmission adjustment assembly 2, testing machine connector 6, crossbeam 7 and rigid substrate sample 11;

[0031] One end of the loading stud 1 is connected to the embedded part 1104 on the side of the rigid substrate sample 11, and the other end is connected to the force transmission adjustment assembly 2, which is used to transmit the pulling force to the embedded part 1104 on the side of the rigid substrate sample 11.

[0032] The rigid substrate sample 11 is provided with crossbeams 7 on both sides, and the crossbeams 7 are connected to the rigid substrate sample 11 by the force transmission adjustment assembly 2.

[0033] The testing machine connector 6 is mounted on the crossbeam 7 via the flange shaft 5, and is used to transmit the pull-out force applied by the external testing machine to the loading stud 1.

[0034] like Figure 2 As shown, the rigid substrate specimen 11 typically comprises: a first grid panel 1101, a second grid panel 1102, a honeycomb core 1103, and a side embedded part 1104. The grid spacing of the two grid panels can be selected in various specifications according to actual needs to meet different structural strength and weight requirements. The honeycomb core 1103 is located between the two grid panels and is typically hexagonal in shape. The strip direction of the honeycomb core can be arranged along the long or short side of the specimen according to design requirements. The embedded part 1104 is fixed to the side of the rigid substrate specimen 11 by adhesive bonding to withstand pull-out force and fix the substrate.

[0035] In practice, one end of the loading stud 1 is connected to the embedded part 1104 on the side of the rigid substrate sample 11. For example, the loading stud 1 is screwed into the threaded hole of the embedded part 1104 on the side of the rigid substrate sample 11, so that the loading stud 1 can be firmly fixed in the embedded part 1104, thereby ensuring the stable transmission of the pull-out force.

[0036] The other end of the loading stud 1 is connected to the force transmission adjustment component 2, which is mounted on the crossbeam 7. When the external testing machine applies a pull-out force, the applied pull-out force can be evenly transmitted to the side embedded part 1104 of the rigid substrate sample 11 through the loading stud 1 and the force transmission adjustment component 2, thereby ensuring the uniform distribution of force during the test.

[0037] A crossbeam 7 is provided on both sides of the rigid substrate specimen 11. The testing machine connector 6 is installed on the crossbeam 7 through the flange shaft 5 and connected to an external testing machine through the testing machine connector 6. With the help of the precise pull-out force provided by the external testing machine, the device can perform high-precision pull-out force testing on the side embedded part 1104 of the rigid substrate specimen 11, thereby providing a reliable basis for evaluating its mechanical properties.

[0038] In one embodiment, such as Figure 3 As shown, the loading stud 1 has threads at both ends, and the middle cylindrical section is milled flat. The thread specification is adapted to M6 or higher standard threaded holes.

[0039] In practice, the loading stud 1 can reliably connect with the embedded part 1104 on the side of the rigid substrate sample 11 and the force transmission adjustment component 2. The middle cylindrical section is milled flat to form a flat surface, which helps to reduce stress concentration problems during the test and improve the reliability and accuracy of the test.

[0040] In one embodiment, the thread specifications at both ends of the loading stud 1 may be different.

[0041] In one embodiment, the force transmission adjustment component 2 includes: an adapter 201 and a loading seat 202;

[0042] One side of the adapter 201 is locked to the loading stud 1 by a nut; the other side of the adapter (201) is hinged to the loading seat 202 by a second pin 203;

[0043] The loading seat 202 is sleeved on the crossbeam 7 and fixed by the first fastener 205.

[0044] Specifically, such as Figure 1 As shown, the adapter 201 is used to connect the loading stud 1 and the loading seat 202. The loading seat 202 is fixed to the crossbeam 7 by the first fastener 205.

[0045] For example, by quickly locking the screws and nuts together, the pulling force is ensured to be transmitted axially, eliminating the slippage error that may occur with traditional gluing or clamping methods.

[0046] In one embodiment, the adapter 201 and the loading seat 202 are rotatable about the axis of the second pin 203 to accommodate the thickness deviation of the side embedded hole.

[0047] During the clamping stage, the embedded parts 1104 on the side of the rigid substrate sample 11 may not be on the same surface. Rotate around the axis of the second pin 203 to adjust the angle of the adapter 201, thereby matching the mounting plane of the embedded parts 1104, thus solving the problem that the embedded hole positions on the side of the test piece cannot be clamped due to thickness deviation.

[0048] During the test, the angle of the adapter 201 can be adjusted in real time to ensure that the load always acts along the axis of the embedded part, thus avoiding test errors caused by eccentric loading.

[0049] In one embodiment, a fastener 204 is provided at the hinge between the adapter 201 and the loading seat 202 to limit axial displacement.

[0050] By limiting axial displacement, the connection stability between the adapter 201 and the loading seat 202 is ensured during the pull-out force test, avoiding test deviations or structural failures caused by axial movement.

[0051] The fastener 204 can be a retaining ring, a snap ring, a lock nut, etc.

[0052] Preferably, a retaining ring is used.

[0053] In one embodiment, such as Figure 1 As shown, the adapter 201 is frame-shaped, and the part that is not directly connected to the loading seat 202 and the loading stud 1 is I-shaped to facilitate clamping the rigid substrate sample 11.

[0054] In conjunction with the above embodiments, the H-shaped structure is narrower in the middle and wider on both sides, providing a more spacious operating space for clamping the rigid substrate sample 11.

[0055] In one embodiment, the loading seat 202 is slidably adjustable on the crossbeam.

[0056] In practice, the position of the loading seat 202 on the crossbeam 7 can be flexibly adjusted according to the specific size and position requirements of the rigid substrate sample 11, so as to adapt to samples with different hole spacings, meet the testing requirements of samples with different hole spacings, and reduce the need for customized fixtures.

[0057] For example, the rigid substrate sample 11 has multiple embedded parts 1104 distributed at different positions on the short side. The loading seat 202 needs to be slidably adjusted on the crossbeam 7 so that each embedded part 1104 can be tested sequentially. By adjusting the position of the loading seat 202, it can be ensured that the pull-out force can be accurately applied to the target embedded part 1104 in each test.

[0058] Multiple loading studs 1 and force transmission adjustment components 2 can also be used simultaneously to test multiple sets of embedded parts 1104.

[0059] In one embodiment, the surface of the crossbeam 7 is provided with scale markings to locate the sliding distance of the loading seat 202.

[0060] In one embodiment, the testing machine connector 6 is connected to the flange shaft 5 via a first pin 3 and locked by a bearing retaining ring 4.

[0061] During implementation, the flange shaft 5 is connected to the testing machine joint 6 via the first pin 3 and fixed to the crossbeam 7 via the bearing retainer ring 4. The bearing retainer ring 4 securely fixes the flange shaft 5 to the crossbeam 7 via mechanical fit or threaded connection to prevent axial movement during testing.

[0062] With the double fixation of the first pin 3 and the bearing retaining ring 4, the connection between the testing machine joint 6 and the flange shaft 5 can ensure the stable transmission of pull-out force, thereby effectively reducing force loss and fluctuation, and improving the accuracy and consistency of test results.

[0063] In one embodiment, the crossbeam 7 can be configured as a cuboid to facilitate the installation of various connectors and fixing devices. For example, the loading seat 202 can be slidably adjusted on the cuboid crossbeam via a slide rail or guide groove, and the edges of the cuboid crossbeam can be designed as right angles or rounded corners to adapt to different installation requirements.

[0064] In one embodiment, the crossbeam 7 can also be configured as a cylinder.

[0065] This invention can test the pull-out force of embedded parts on the side of rigid substrates, ensuring the consistency and accuracy of pull-out force testing.

[0066] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0067] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A device for testing the pull-out force of a side-embedded part on a rigid substrate, characterized in that, include: Loading stud (1), force transmission adjustment assembly (2), testing machine connector (6) and crossbeam (7); One end of the loading stud (1) is connected to the embedded part (1104) on the side of the rigid substrate sample (11), and the other end is connected to the force transmission adjustment assembly (2) to transmit the pulling force to the embedded part (1104) on the side of the rigid substrate sample (11). The crossbeams (7) are respectively provided on both sides of the rigid substrate sample (11), and the crossbeams (7) are connected to the rigid substrate sample (11) through the force transmission adjustment assembly (2). The testing machine connector (6) is mounted on the crossbeam (7) via a flange shaft (5) to transmit the pull-out force applied by the external testing machine to the loading stud (1).

2. The rigid substrate side embedded part pull-out force testing device according to claim 1, characterized in that, The loading stud (1) has threads at both ends and the middle cylindrical section is milled flat. The thread specification is adapted to standard threaded holes of M6 or above.

3. The rigid substrate side-embedded part pull-out force testing device according to claim 1, characterized in that, The force transmission adjustment component (2) includes: an adapter (201) and a loading seat (202); One side of the adapter (201) is locked to the loading stud (1) by a nut; the other side of the adapter (201) is hinged to the loading seat (202) by a second pin (203); The loading seat (202) is sleeved on the crossbeam (7) and fixed by the first fastener (205).

4. The rigid substrate side embedded part pull-out force testing device according to claim 3, characterized in that, The adapter (201) and the loading seat (202) can rotate around the axis of the second pin (203) to accommodate the thickness deviation of the side embedded hole.

5. The rigid substrate side-embedded part pull-out force testing device according to claim 3, characterized in that, The hinge joint between the adapter (201) and the loading seat (202) is provided with a fastener (204) to limit axial displacement.

6. The rigid substrate side-embedded part pull-out force testing device according to claim 5, characterized in that, The fastener (204) includes: a retaining ring.

7. The rigid substrate side-embedded part pull-out force testing device according to claim 3, characterized in that, The adapter (201) is frame-shaped, and in the part that is not directly connected to the loading seat (202) and the loading stud (1), it is I-shaped to facilitate clamping the rigid substrate sample (11).

8. The rigid substrate side-embedded part pull-out force testing device according to claim 3, characterized in that, The loading seat (202) is adjustable and can slide on the crossbeam.

9. The rigid substrate side-embedded part pull-out force testing device according to claim 8, characterized in that, The surface of the crossbeam (7) is marked with scale marks to locate the sliding distance of the loading seat (202).

10. The rigid substrate side-embedded part pull-out force testing device according to claim 1, characterized in that, The test machine connector (6) is connected to the flange shaft (5) by the first pin (3) and locked by the bearing retaining ring (4).

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