A spring leaf deformation testing device and method of use

Abstract

The application discloses a spring sheet deformation testing device and a use method thereof, and relates to the technical field of spring sheet deformation testing devices, and aims to improve the reliability of testing and reduce the product testing cost.

Description

Technical Field

[0001] This invention belongs to the technical field of spring sheet deformation testing devices, and particularly relates to a spring sheet deformation testing device and its usage method. Background Technology

[0002] In core components of aerospace equipment, memory is installed to store a certain amount of backup energy for steering or return. The metal spring sheets in the memory must undergo repeated testing to ensure accuracy before being used in actual products. The metal spring sheets need to be flipped multiple times during testing; therefore, a metal spring sheet flipping deformation simulation test device is an economical means of achieving this process. However, existing flipping deformation simulation test devices are prone to problems such as wrinkling or cracking of the metal spring sheets during the flipping process due to work hardening (cold hardening) or uneven pressure, which affects testing efficiency and, to some extent, product yield. Therefore, a test device is needed that can avoid wrinkling or cracking of the metal spring sheets during flipping testing.

[0003] Patent document CN202122599901 discloses a spring sheet force testing device, including a base, a testing rod fixedly mounted on the top of the base, a sleeve rod sleeved on the outer wall of the testing rod, a sliding rail on one side of the testing rod, a sliding sleeve slidably connected to the inner wall of the sliding rail, one end of the sliding sleeve being fixedly connected to the outer wall of the sleeve rod, an extension plate fixedly connected to one side of the top of the sliding rail, an adjusting rod fixedly connected to one side of the front of the extension plate, and a crossbar rotatably connected to one end of the adjusting rod. However, this testing device is used for testing the tension of spring sheets. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a spring sheet deformation testing device and a method of use, which can solve the problem that metal spring sheets are prone to wrinkling or breaking during the flipping process.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a spring sheet deformation testing device, comprising a cavity A, a cavity B and a pipe connector, wherein the cavity B is disposed on the cavity A and the pipe connector is disposed on the cavity B.

[0007] Preferably, the cavity A is provided with a through hole A, and a screw hole A is provided on the side of the cavity A, and a screw is provided in the screw hole A.

[0008] Preferably, the cavity B is provided with a through hole B and a screw hole B is provided on the side of the cavity B, and the cavity B is threadedly connected to a screw through the screw hole B.

[0009] Preferably, the cavity A is provided with groove A, groove B and groove C, all of which are arc-shaped, and a sealing ring is provided on groove C.

[0010] Preferably, the cavity B is provided with grooves D and E, both of which are arc-shaped, and groove E corresponds to the sealing ring.

[0011] Preferably, the cavity B is provided with a convex ring, the end of which is arc-shaped, and the convex ring is slidably connected within the groove B.

[0012] Preferably, a pressure-transmitting ring A is provided on the cavity A.

[0013] Preferably, a pressure-transmitting ring B is provided on the cavity B.

[0014] Preferably, the pipe fitting is connected to cavity A or cavity B via a sealing element.

[0015] A method for using a spring sheet deformation testing device includes the following steps:

[0016] S1: Place the spring plate in cavity B, place the sealing ring on groove C, then assemble cavity B with cavity A, and use screws to tighten evenly through screw holes B and A in sequence, ensuring the airtightness of cavity B and cavity A after assembly.

[0017] S2: Pressure is input into cavity B, and the pressure is transmitted to the surface of the spring plate by the pressure transmission ring B. Under the action of pressure, the spring plate rotates uniformly around point R2, so that the spring plate is completely rotated and enters cavity A. During the rotation of the spring plate, an endoscope can be inserted into cavity A through the through hole A for monitoring and recording. When the pressure in cavity B is stable and the spring plate is completely rotated, the pressure is released, and the pipe connector is connected to cavity A to input pressure into cavity A, and then input pressure transmission ring A to input pressure, so that the spring plate rotates uniformly in the opposite direction around point R2. At this time, an endoscope can be inserted into cavity B through the through hole B for monitoring and recording. This process of uniformly rotating the spring plate around point R2 is repeated.

[0018] The beneficial effects of this invention are as follows:

[0019] This invention, through the arrangement of pressure-transmitting rings A and B, enables the spring sheet to be evenly stressed and rotated. The addition of a convex ring and a sealing ring further enhances the sealing performance, ensuring the spring sheet can be tested in a vacuum. This invention improves the reliability of the test while minimizing the risk of wrinkles or breakage during rotation due to metal work hardening (cold work hardening) or uneven pressure, thus reducing product testing costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of region A of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of region B in this invention;

[0023] Figure 4 This is a schematic diagram of the structure of cavity A of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of cavity B of the present invention;

[0025] Figure 6 This is a schematic diagram of the spring sheet structure;

[0026] In the diagram: 1-Cavity A, 11-Through Hole A, 12-Screw Hole A, 13-Groove A, 14-Groove B, 15-Groove C, 16-Pressure Transmission Ring A, 2-Cavity B, 21-Through Hole B, 22-Screw Hole B, 23-Groove D, 24-Groove E, 25-Protruding Ring, 26-Pressure Transmission Ring B, 3-Pipe Fitting, 4-Screw, 5-Sealing Ring, 6-Seal, 7-Spring Plate. Detailed Implementation

[0027] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0028] Example 1:

[0029] like Figures 1 to 6 As shown, a spring sheet deformation testing device includes a cavity A1, a cavity B2, and a pipe connector 3. Cavity B2 is disposed on cavity A1, and pipe connector 3 is disposed on cavity B2. Alternatively, pipe connector 3 can be disposed on cavity A1. The function of pipe connector 3 is to externally supply pressure into the cavity. When it is necessary to flip the spring sheet 7 from cavity B2 to cavity A2, pipe connector 3 is connected to cavity B2; when reversing, pipe connector 3 is connected to cavity A1. Figure 1 In order to use endoscopic observation, pipe connectors 3 were not installed on cavity A1 and cavity B2 respectively.

[0030] The cavity A1 has a through hole A11, and the side of the cavity A1 has a screw hole A12. A screw 4, which is an internal hexagon screw, is installed in the screw hole A12. The pipe connector 3 can extend into the groove A13 through the through hole A11.

[0031] The cavity B2 has a through hole B21 and a screw hole B22 on its side. The cavity B2 is threadedly connected to the screw 4 through the screw hole B22. After the cavities A1 and B2 are assembled, they can be tightened with the screw 4. The pipe connector 3 can extend into the groove D23 through the through hole B21.

[0032] The pipe joint 3 can be supplied with air or hydraulic pressure, thereby enabling the pressure transmission rings A16 and B26 to function.

[0033] The cavity A1 is provided with grooves A13, B14, and C15, all of which are arc-shaped. A sealing ring 5 is provided on groove C15. Grooves B14 and C15 are both annular, so that groove B14 can hold the protruding ring 25 and groove C15 can hold the sealing ring 5.

[0034] The cavity B2 is provided with grooves D23 and E24, both of which are arc-shaped. Groove E24 corresponds to the sealing ring 5, and the sealing ring 5 increases the airtightness of the spring sheet deformation testing device of the present invention. After the cavities A1 and B2 are assembled, groove A13 and groove D23 combine to form a spherical cavity, providing space for the spring sheet 7 to rotate. Groove E24 is annular so that the corresponding groove C15 can hold the sealing ring 5 in place.

[0035] A protruding ring 25 is provided on the cavity B2. The end of the protruding ring 25 is arc-shaped. The protruding ring 25 is slidably connected in the groove B14. The protruding ring 25 can compress the edge of the spring sheet 7, further stabilizing the rotation of the spring sheet 7.

[0036] The cavity A1 is provided with a pressure transmission ring A16, which is used to input hydraulic or pneumatic pressure and generate pressure on the spring plate 7, so that the spring plate 7 can be rotated evenly through the pressure.

[0037] The cavity B2 is provided with a pressure transmission ring B26, which is used to input hydraulic or pneumatic pressure and generate pressure on the spring plate 7, so that the spring plate 7 can be rotated evenly through the pressure.

[0038] The pipe joint 3 is connected to cavity A1 or cavity B2 via sealing element 6 in order to maintain the airtightness of the spring sheet deformation testing device of the present invention.

[0039] A method for using a spring sheet deformation testing device includes the following steps:

[0040] S1: Place the spring plate 7 in cavity B2, place the sealing ring 5 on the groove C15, then assemble cavity B2 with cavity A1, and use screws 4 to pass through screw holes B22 and A12 in sequence and tighten evenly, maintaining the airtightness of cavity B2 and cavity A1 after assembly.

[0041] S2: Pressure is input into cavity B2, and the pressure is transmitted to the surface of spring plate 7 by pressure transmission ring B26. Under the pressure, spring plate 7 rotates uniformly around point R2, so that spring plate 7 is completely rotated into cavity A1. The pipe connector 3, under the action of sealing element 6, ensures that the pressure entering cavity B2 is stable. By completely isolating spring plate 7 in an independent space, it is ensured that spring plate 7 rotates uniformly under the pressure input into cavity A1. During the rotation of spring plate 7, an endoscope can be inserted into cavity A1 through through hole A11 for monitoring and recording. When the pressure in cavity B2 is stable and spring plate 7 is completely rotated, the pressure is released, and pipe connector 3 is connected to cavity A1 to input pressure into cavity A1, which in turn inputs pressure to pressure transmission ring A16. The spring sheet 7 is rotated in the opposite direction and rotated uniformly around point R2. At this time, an endoscope can be inserted into cavity B2 through through hole B21 for monitoring and recording. The spring sheet 7 is rotated uniformly around point R2 in this way to test its performance and provide a reference for product design.

[0042] The spring sheet 7 has an arc-shaped center and is made of metal using a sheet metal stretching and forming method.

[0043] In this system, the groove A13 of cavity A1 and the groove D23 of cavity B2 form the first sealing band with the contact plane of spring plate 7. The R point outside cavity A1 matches the R1 point inside cavity B2 (the R point and R1 point are equivalent to the corners on the contact surfaces of cavity A1 and cavity B2), bending spring plate 7 to form the second sealing band. Cavity A1 and cavity B2 are reinforced by sealing ring 5 to form the third sealing band, ensuring that spring plate 7 rotates evenly under the action of input pressure under vacuum conditions. Therefore, pressure transmitting ring A16 and pressure transmitting ring B26 also play a key role in detecting the deformation of spring plate 7.

Claims

1. A spring sheet deformation testing device, characterized in that: It includes cavity A (1), cavity B (2) and pipe connector (3), wherein cavity B (2) is disposed on cavity A (1) and pipe connector (3) is disposed on cavity B (2); The cavity A (1) is provided with a through hole A (11), and the side of the cavity A (1) is provided with a screw hole A (12), and a screw (4) is provided on the screw hole A (12). The cavity B (2) is provided with a through hole B (21) and a screw hole B (22) is provided on the side of the cavity B (2). The cavity B (2) is threadedly connected to the screw (4) through the screw hole B (22). The cavity A (1) is provided with grooves A (13), B (14) and C (15), and the grooves A (13), B (14) and C (15) are all arc-shaped. A sealing ring (5) is provided on the groove C (15). The cavity A (1) is provided with a pressure transmission ring belt A (16); The cavity B (2) is provided with a pressure transmission ring belt B (26); A method for using a spring sheet deformation testing device includes the following steps: S1: Place the spring sheet (7) in the cavity B (2), place the sealing ring (5) on the groove C (15), then assemble the cavity B (2) with the cavity A (1), and use the screw (4) to pass through the screw hole B (22) and screw hole A (12) in sequence to tighten evenly and maintain the airtightness of the cavity B (2) and cavity A (1) after assembly; S2: Input pressure into cavity B (2) and transmit the pressure to the surface of spring plate (7) through pressure transmission ring belt B (26). Under the action of pressure, spring plate (7) rotates uniformly around point R2, so that spring plate (7) is completely rotated into cavity A (1). During the rotation of spring plate (7), an endoscope can be inserted into cavity A (1) through through hole A (11) for monitoring and recording. When the pressure in cavity B (2) is stable and spring plate (7) is completely rotated, depressurize and connect pipe connector (3) to cavity A (1) to input pressure into cavity A (1), and then input pressure transmission ring belt A (16) to make spring plate (7) rotate uniformly in the opposite direction around point R2. At this time, an endoscope can be inserted into cavity B (2) through through hole B (21) for monitoring and recording. Repeat this process to rotate spring plate (7) uniformly around point R2.

2. The spring sheet deformation testing device as described in claim 1, characterized in that: The cavity B (2) is provided with grooves D (23) and E (24), both of which are arc-shaped. The groove E (24) corresponds to the sealing ring (5).

3. The spring sheet deformation testing device as described in claim 1, characterized in that: A convex ring (25) is provided on the cavity B (2), the end of the convex ring (25) is arc-shaped, and the convex ring (25) is slidably connected in the groove B (14).

4. The spring sheet deformation testing device as described in claim 1, characterized in that: The pipe fitting (3) is connected to cavity A (1) or cavity B (2) via a seal (6).

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