Anti-fatigue detection device for metal washer

Abstract

The utility model relates to the technical field of metal washer detection, in particular to an anti-fatigue detection device for a metal washer, which comprises an operation table, and a supporting seat is mounted at the top of the operation table. Along with the rotation of the rotating disc, the arc-shaped grooves generate thrust on the fixing columns, so that the fixing columns drive the sliding blocks to slide on the sliding rods, and then the four sets of clamping plates are made to get close to or get away from each other synchronously to achieve uniform clamping of the metal washers, and when the driving motor rotates to drive the clamped metal washers to rotate for anti-fatigue detection. The metal gasket is worn under the action of repeated rotation and pressure, the thickness of the metal gasket is gradually reduced along with the wearing, the elastic restoring force of the compression spring enables the movable column to gradually move downwards, and the descending height of the movable column is recorded, so that the wear degree of the metal gasket can be obtained, and the anti-fatigue performance of the metal gasket is evaluated. And through four groups of synchronous detection, the comparison is more convenient, the operation is convenient, and the practicability is better.

Description

Technical Field

[0001] This utility model relates to the technical field of metal gasket testing, and in particular to a fatigue testing device for metal gaskets. Background Technology

[0002] Metal gaskets are ring-shaped parts made of metal materials, playing a vital role in many fields such as mechanical assembly, equipment connection, and pipeline sealing. They are usually placed between two connected parts and, through their unique structure and performance characteristics, perform multiple functions such as filling gaps, evenly transferring loads, preventing loosening, and achieving a seal. From a material perspective, common metals used to manufacture metal gaskets include stainless steel, carbon steel, copper, and aluminum. Different materials have different properties. Stainless steel gaskets have strong corrosion resistance and are suitable for humid or chemically corrosive environments. Carbon steel gaskets have high strength and low cost and are often used for general mechanical connections. Copper gaskets have good electrical and thermal conductivity and are used in some applications where sealing, electrical conductivity, and thermal conductivity are required simultaneously.

[0003] Metal washers will wear down after prolonged use. Fatigue testing is required during the production of metal washers. However, traditional fatigue testing devices for metal washers are not convenient for simultaneous testing of multiple groups, resulting in low testing efficiency and making it difficult to directly compare test results. Therefore, they have certain drawbacks.

[0004] Therefore, in order to solve the above problems, this utility model provides a fatigue testing device for metal washers. Utility Model Content

[0005] The purpose of this invention is to provide a fatigue testing device for metal washers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fatigue testing device for metal washers, comprising an operating table, a support base mounted on the top of the operating table, a column mounted on the top of the operating table and near the support base, a linear motor mounted on the column, a support rod mounted on one end of the linear motor, a drive motor mounted on the bottom end of the support rod away from the linear motor, a fixed disk mounted on the bottom output shaft of the drive motor, four sets of sleeves mounted in a circular array on the bottom of the fixed disk, movable columns mounted inside the sleeves, a support frame mounted on the bottom of the movable columns, a fixed plate mounted on one bottom end of the support frame, four sets of sliding grooves arranged in a circular array on the bottom of the fixed plate, sliding rods mounted between the inner sidewalls of the sliding grooves, a slider mounted on the outer ring surface of the sliding rod, and a clamping plate mounted on one bottom end of the slider.

[0007] Preferably, the inner wall of the sleeve is slidably connected to the outer ring surface of the movable column, and a compression spring is installed on the top inner side of the sleeve, with one bottom end of the compression spring connected to the top of the movable column.

[0008] Preferably, a transparent scale plate is embedded in the outer ring surface of the sleeve, and scale lines are provided on the transparent scale plate.

[0009] Preferably, a servo motor is installed at the bottom center of the support frame, and a turntable is installed on the bottom output shaft of the servo motor, with the bottom of the turntable fitting against the top of the fixed plate.

[0010] Preferably, the top of the turntable has four sets of arc-shaped grooves arranged in a ring, and the top of the slider and inside the arc-shaped grooves are all equipped with fixing columns.

[0011] Preferably, anti-slip pads are installed on the outer side of each clamp.

[0012] In summary, this utility model has the following beneficial technical effects:

[0013] This fatigue testing device for metal washers utilizes a rotating turntable. The arc-shaped groove exerts a thrust on a fixed column, causing the fixed column to slide a slider on a sliding rod. This, in turn, causes four sets of clamping plates to move synchronously closer or further apart, achieving uniform clamping of the metal washer. When the drive motor rotates, causing the clamped metal washer to rotate for fatigue testing, the metal washer wears down under repeated rotation and pressure. As wear progresses, the thickness of the metal washer gradually decreases. The elastic restoring force of the compression spring causes the movable column to gradually move downwards. By setting a specified time, the transparent scale plate is observed again after the test, and the height of the movable column's descent is recorded. There is a certain correlation between the height of the movable column's descent and the degree of wear of the metal washer. By recording the height of the movable column's descent, the wear degree of the metal washer can be determined, thus evaluating its fatigue resistance. Furthermore, the simultaneous testing with four sets of plates makes comparison more convenient, increases testing efficiency, and improves operational ease and practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a utility model Figure 1 Partial structural diagram;

[0016] Figure 3 This is a utility model Figure 2 Partial structural diagram;

[0017] Figure 4 This is a utility model Figure 3 Diagram of the bottom structure.

[0018] Explanation of reference numerals in the attached diagram: 1. Operating table; 2. Support base; 3. Column; 4. Linear motor; 5. Support rod; 6. Drive motor; 7. Fixed plate; 8. Sleeve; 9. Movable column; 10. Support frame; 11. Fixed plate; 1101. Slide groove; 12. Slide rod; 13. Slider; 14. Clamping plate; 15. Compression spring; 16. Transparent scale plate; 17. Servo motor; 18. Turntable; 1801. Arc groove; 19. Fixed column; 20. Anti-slip pad. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 - Figure 4 The present invention will be described in further detail below.

[0020] A fatigue testing device for metal washers, referring to Figure 1 - Figure 4 The system includes an operating platform 1, a support base 2 mounted on the top of the operating platform 1, a column 3 mounted on the top of the operating platform 1 and close to the support base 2, a linear motor 4 mounted on the column 3, a support rod 5 mounted on one end of the linear motor 4, a drive motor 6 mounted on the bottom end of the support rod 5 away from the linear motor 4, a fixed plate 7 mounted on the bottom output shaft of the drive motor 6, four sets of sleeves 8 mounted in a circular array on the bottom of the fixed plate 7, a movable column 9 mounted inside the sleeve 8, a support frame 10 mounted on the bottom of the movable column 9, a fixed plate 11 mounted on one end of the bottom of the support frame 10, four sets of sliding grooves 1101 arranged in a circular array on the bottom of the fixed plate 11, a sliding rod 12 mounted between the inner sidewalls of the sliding grooves 1101, a slider 13 mounted on the outer ring surface of the sliding rod 12, and a clamping plate 14 mounted on one end of the bottom of the slider 13.

[0021] Reference Figure 1 - Figure 3The inner wall of sleeve 8 is slidably connected to the outer ring surface of movable column 9. A compression spring 15 is installed on the top inner side of sleeve 8, and one bottom end of the compression spring 15 is connected to the top of movable column 9. When linear motor 4 drives support rod 5 to move linearly along column 3, it drives the lower part to move downward, causing the clamped metal washer to press tightly against support seat 2. The metal washer will receive a reaction force from support seat 2. This reaction force is transmitted to movable column 9, causing movable column 9 to slide upward in sleeve 8. During the upward sliding process of movable column 9, it will squeeze compression spring 15. A transparent scale plate 16 is embedded on the outer ring surface of sleeve 8, and scale lines are provided on the transparent scale plate 16. The top of movable column 9 can be observed and remembered through the transparent scale plate 16. When the drive motor 6 rotates and drives the clamped metal washer to rotate for fatigue testing, the metal washer will wear under repeated rotation and pressure. As the wear progresses, the thickness of the metal washer will gradually decrease, and the reaction force on the movable column 9 will also decrease accordingly. The elastic restoring force of the compression spring 15 will cause the movable column 9 to gradually move downward. By setting a specified time, the transparent scale plate 16 is observed again after the test, and the height of the movable column 9 is recorded. There is a certain correlation between the height of the movable column 9 and the degree of wear of the metal washer. Thus, the wear degree of the metal washer can be obtained, and its fatigue resistance performance can be evaluated. Furthermore, the comparison is more convenient through four sets of synchronous tests, which increases the efficiency of the test.

[0022] Reference Figure 1 - Figure 4 A servo motor 17 is installed at the bottom center of the support frame 10. A turntable 18 is installed on the bottom output shaft of the servo motor 17. The bottom of the turntable 18 is in contact with the top of the fixed plate 11. After the servo motor 17 is started, its bottom output shaft drives the turntable 18 to rotate. The bottom of the turntable 18 is in contact with the top of the fixed plate 11, so that the turntable 18 can maintain a relatively stable contact with the fixed plate 11 during rotation. The top of the turntable 18 has four sets of arc-shaped grooves 1801 in a ring array. The top of the slider 13 and inside the arc-shaped grooves 1801 are all equipped with fixed posts 19. As the turntable 18 rotates, the arc-shaped grooves 1801 will push the fixed posts 19, causing the fixed posts 19 to drive the slider 13 to slide on the slide rod 12. Therefore, the rotation of the turntable 18 will simultaneously drive the four sets of sliders 13 to move synchronously, thereby causing the four sets of clamping plates 14 to move closer or further away synchronously, realizing uniform clamping of the metal washer and ensuring the stability and accuracy of clamping.

[0023] Reference Figure 4Anti-slip pads 20 are installed on the outer side of the clamping plate 14. When clamping the metal washer, the anti-slip pads 20 installed on the outer side of the clamping plate 14 will directly contact the metal washer, increasing the friction between the clamping plate 14 and the metal washer, preventing the metal washer from sliding due to rotation or pressure during the testing process, thereby ensuring the stability of clamping and ensuring the accuracy of the test results.

[0024] The implementation principle of the fatigue testing device for metal washers in this embodiment of the present invention is as follows: When performing fatigue testing on the metal washers, after the servo motor 17 is started, its bottom output shaft drives the turntable 18 to rotate. The bottom of the turntable 18 is in contact with the top of the fixed plate 11, so that the turntable 18 can maintain a relatively stable contact with the fixed plate 11 during rotation. As the turntable 18 rotates, the arc groove 1801 will generate a thrust on the fixed column 19, causing the fixed column 19 to drive the slider 13 to slide on the slide rod 12. Therefore, the rotation of the turntable 18 will simultaneously drive four sets of The slider 13 moves synchronously, causing the four sets of clamping plates 14 to move closer or further apart synchronously, achieving uniform clamping of the metal washer and ensuring clamping stability and accuracy. When clamping the metal washer, the anti-slip pad 20 installed on the outer side of the clamping plate 14 directly contacts the metal washer, increasing the friction between the clamping plate 14 and the metal washer. This prevents the metal washer from sliding due to rotation or pressure during testing, thus ensuring clamping stability and the accuracy of the test results. When the linear motor 4 drives the support rod 5 to move linearly along the column 3... The lower component moves downward, causing the clamped metal washer to press tightly against the support base 2. The metal washer experiences a reaction force from the support base 2, which is transmitted to the movable column 9, causing it to slide upward within the sleeve 8. During this upward sliding, the movable column 9 compresses the compression spring 15. The height of the top of the movable column 9 is observed and recorded through the transparent scale plate 16. When the drive motor 6 rotates, it causes the clamped metal washer to rotate for fatigue testing. Under repeated rotation and pressure, the metal washer will wear down. As wear progresses, the thickness of the metal washer gradually decreases, and the reaction force on the movable column 9 also decreases accordingly. The elastic restoring force of the compression spring 15 causes the movable column 9 to gradually move downward. By setting a specified time, the transparent scale plate 16 is observed again after the test, and the height of the movable column 9's descent is recorded. The height of the movable column 9's descent corresponds to the degree of wear of the metal washer, thus allowing the determination of the metal washer's wear level and its fatigue resistance performance. Furthermore, the simultaneous testing with four sets of tests makes comparison more convenient, increases testing efficiency, and improves operational convenience and practicality.

[0025] Finally, the following points should be noted: First, in the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly, and can be mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0028] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A fatigue testing device for metal washers, comprising an operating table (1), characterized in that: A support base (2) is installed on the top of the operating table (1). A column (3) is installed on the top of the operating table (1) and near the support base (2). A linear motor (4) is installed on the column (3). A support rod (5) is installed on one end of the linear motor (4). A drive motor (6) is installed at the bottom end of the support rod (5) away from the linear motor (4). A fixed disk (7) is installed on the bottom output shaft of the drive motor (6). Four sets of sleeves are installed in a circular array at the bottom of the fixed disk (7). (8) A movable column (9) is installed inside the sleeve (8). A support frame (10) is installed at the bottom of the movable column (9). A fixed plate (11) is installed at one bottom end of the support frame (10). Four sets of sliding grooves (1101) are arranged in a ring array at the bottom of the fixed plate (11). A sliding rod (12) is installed between the inner sidewalls of the sliding groove (1101). A slider (13) is installed on the outer ring surface of the sliding rod (12). A clamping plate (14) is installed at one bottom end of the slider (13).

2. The fatigue testing device for metal washers according to claim 1, characterized in that: The inner wall of the sleeve (8) is slidably connected to the outer ring surface of the movable column (9). A compression spring (15) is installed on the top inner side of the sleeve (8), and one bottom end of the compression spring (15) is connected to the top of the movable column (9).

3. The fatigue testing device for metal washers according to claim 2, characterized in that: A transparent scale plate (16) is embedded in the outer ring surface of the sleeve (8), and scale lines are provided on the transparent scale plate (16).

4. The fatigue testing device for metal washers according to claim 1, characterized in that: A servo motor (17) is installed at the bottom center of the support frame (10), and a turntable (18) is installed on the bottom output shaft of the servo motor (17). The bottom of the turntable (18) is in contact with the top of the fixing plate (11).

5. The fatigue testing device for metal washers according to claim 4, characterized in that: The top of the turntable (18) has four sets of arc-shaped grooves (1801) arranged in a ring. The top of the slider (13) and inside the arc-shaped grooves (1801) are all equipped with fixed columns (19).

6. The fatigue testing device for metal washers according to claim 1, characterized in that: Anti-slip pads (20) are installed on the outer side of each clamp (14).

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