Steel ball precise drop test equipment and test method

Abstract

The invention relates to the technical field of steel ball drop test, and discloses steel ball accurate drop test equipment and a test method, the steel ball accurate drop test equipment comprises a base, the top of the base is provided with a protection part; and the protection component comprises a fixing plate, the bottom of the fixing plate is fixedly connected with the top of the base, a bearing table is fixedly connected to the surface of the fixing plate, a protective fence is fixedly connected to the top of the bearing table, and a protection frame is fixedly connected to the top of the fixing plate. The extrusion disc is in contact with the rolling rod frame during rotation, the rolling rod frame is pushed to rotate through the inclination of the extrusion disc and rotates towards the outer end of the circular plate at the same time, the rolling rod frame pushes the bent plates to move close to each other when rotating towards the outer end of the circular plate, and the steel balls are clamped when the bent plates move close to each other; and the lower surface of the bent plate is in contact with the lower surface of the steel ball and then holds the steel ball, so that the stability of clamping and fixing the steel ball by the bent plate is improved.

Description

Technical Field

[0001] This invention relates to the field of steel ball drop testing technology, specifically to a steel ball precision drop testing device and testing method. Background Technology

[0002] Steel ball drop performance testing is a test method that evaluates the impact resistance of materials or products by simulating the impact force of an object falling from a height. It uses the kinetic energy and impact force generated by the free fall of a steel ball to detect its deformation, cracks or fractures after impact, thereby evaluating the strength, hardness and durability of the material. As a commonly used component in the industrial field, the impact resistance of steel balls directly affects the operational stability and safety of downstream equipment. Therefore, it is necessary to verify their structural integrity and resistance to breakage through drop tests. Existing steel ball drop test devices require workers to transport the steel balls to a high place and fix them at the release point of the drop test. The degree of automation is low, which affects the efficiency of steel ball drop tests. Summary of the Invention

[0003] The purpose of this invention is to provide a steel ball precision drop test device and test method to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a steel ball precision drop test device and test method, including a base, the top of which is provided with a protective component; The protective component includes a fixing plate, the bottom of which is fixedly connected to the top of the base. A support platform is fixedly connected to the surface of the fixing plate, a guardrail is fixedly connected to the top of the support platform, a protective frame is fixedly connected to the top of the fixing plate, a through hole is provided on the top of the support platform, a ladder is fixedly connected to the top of the support platform, a stabilizing frame is fixedly connected to the end of the support platform away from the guardrail, a drop test component is provided on the top of the support platform, and a limit component is provided at the bottom of the drop test component.

[0005] Furthermore, there are four fixing plates, which are located at the dead corners of the end of the support platform. There are also four support platforms, which are distributed vertically on the surface of the fixing plates. There are three guardrails, which are located on the top of the support platform.

[0006] Furthermore, the bottom of the protective frame is fixedly connected to the top of the support platform, the ladder is inclined, the top of the ladder is fixedly connected to the bottom of the support platform, the upper surface of the ladder is located below the through hole, and the guardrail is symmetrically arranged with the stabilizer frame as the center.

[0007] Furthermore, the drop test component includes a fixed frame, the bottom of which is fixedly connected to the top of the support platform. A semi-circular frame is fixedly connected to the end of the fixed frame away from the support platform. A sliding hole frame is fixedly connected to the surface of the semi-circular frame. A power device is fixedly connected to the top of the inner wall of the fixed frame. A threaded rod is fixedly connected to the output end of the power device. A threaded hole frame is threadedly connected to the surface of the threaded rod. A disc is fixedly connected to the bottom of the threaded hole frame. A vertical rod is fixedly connected to the bottom of the disc. A circular plate is fixedly connected to the bottom of the vertical rod. A shaft is fixedly connected to the inner wall of the circular plate. A bent plate is rotatably connected to the surface of the shaft. A roller frame is fixedly connected to the top of the bent plate. A drive device is fixedly connected to the bottom of the disc. A compression disc is fixedly connected to the output end of the drive device.

[0008] Furthermore, the end of the fixing frame away from the support platform extends to the outer end of the protective frame, the bottom of the semi-circular frame extends to the lower surface of the fixing plate, the bottom of the threaded rod extends to the bottom of the semi-circular frame, and the number of sliding hole frames is three.

[0009] Furthermore, the surface of the circular plate contacts the inner wall of the semi-circular frame, the surface of the screw hole frame contacts the inner wall of the semi-circular frame, and the number of the bent plates is set to four, with the four bent plates arranged circumferentially around the circular plate.

[0010] Furthermore, the top of the roller frame extends to the outer top of the circular plate, the surface of the extrusion disc contacts the surface of the roller frame, the end of the extrusion disc near the roller frame is inclined, and the center of the curved plate extends into the interior of the sliding hole frame.

[0011] Furthermore, the limiting component includes a grooved plate, a connecting plate fixedly connected to the surface of the grooved plate, an end of the connecting plate away from the grooved plate fixedly connected to the surface of the base, an electric push rod fixedly connected to the inner wall of the grooved plate, a sliding frame fixedly connected to the end of the electric push rod away from the grooved plate, a pressure sensor mounted on the top of the sliding frame, a grooved disc fixedly connected to the top of the pressure sensor, a limiting cylinder fixedly connected to the surface of the grooved disc, an inclined plate fixedly connected to the inner wall of the limiting cylinder, and a discharge rack communicating with the surface of the limiting cylinder.

[0012] Furthermore, the inner wall of the sliding frame is slidably connected to the surface of the grooved plate, the end of the grooved plate extends to the outer end of the base, the bottom of the grooved plate and the bottom of the base are horizontally arranged, the limiting cylinder is located below the semi-circular frame, there are two inclined plates, the two inclined plates are symmetrically arranged with the unloading rack as the center, there are two unloading racks, the two unloading racks are symmetrically arranged with the inclined plates as the center, and the center of the grooved plate is located at one end of the two inclined plates that are close to each other.

[0013] Furthermore, the testing method for the steel ball precision drop test equipment includes the following steps: S1: A guardrail is installed on the surface of the fixed plate. The guardrail and the stabilizer work together to surround the support platform and prevent operators from falling when working on top of the support platform. S2: Start the power unit to drive the threaded rod to rotate. When the threaded rod rotates, it will drive the screw hole frame to move downward. When the screw hole frame moves downward, it will push the circular plate to move inside the semi-circular frame through the connection between the disc and the vertical rod. When the bottom of the circular plate contacts the top of the steel ball; S3: When the extrusion disc rotates, it contacts the roller frame. The inclination of the extrusion disc pushes the roller frame to rotate while rotating towards the outer end of the circular plate. When the roller frame rotates towards the outer end of the circular plate, it will push the bending plates to move closer to each other. When the bending plates move closer to each other, they will clamp the steel ball. S4: The drive unit drives the extrusion plate to separate from the roller frame. At this time, the steel ball will separate from the bending plate by gravity and fall inside the semi-circular frame, completing the feeding operation of the steel ball. The semi-circular frame is used to limit the steel ball to ensure that the falling trajectory of the steel ball is stable and the test data has good repeatability. S5: Impact table for testing the function of the grooved plate. When the steel ball falls, it will impact the grooved plate. After the test, the steel ball will be limited by the limiting cylinder to prevent the steel ball from bouncing up after the impact and flying to other places.

[0014] The present invention has the following beneficial effects: This invention features four fixing plates at the top of the base to secure the support platform. Guardrails are installed on the surface of the fixing plates, and these guardrails and the stabilizing frame work together to enclose the support platform, preventing operators from falling while working on top. A ladder is positioned below the through-hole to allow operators to climb upwards. A protective frame is installed at the top of the support platform, further enhancing the safety of operators working at heights.

[0015] In this invention, after the test steel ball is placed inside the limiting component, the power device is activated to drive the threaded rod to rotate. As the threaded rod rotates, it drives the threaded hole frame to move downwards. During this downward movement, the threaded hole frame, through the connection between the disc and the vertical rod, pushes the circular plate to move inside the semi-circular frame. Once the bottom of the circular plate contacts the top of the steel ball, the drive device is activated to drive the extrusion disc to rotate. As the extrusion disc rotates, it contacts the roller frame. The inclination of the extrusion disc pushes the roller frame to rotate while simultaneously rotating it towards the outer end of the circular plate. As the roller frame rotates towards the outer end of the circular plate, it pushes the bent plates to move closer together. This movement of the bent plates clamps the steel ball. The lower surface of the bent plate contacts the lower surface of the steel ball, thus catching it and improving the stability of the bent plate's clamping and fixing of the steel ball, preventing the steel ball from slipping when the circular plate moves upwards. After the steel ball is fixed, the power device drives the threaded rod to reverse direction. At this time, the threaded hole frame will move the circular plate... Moving upwards, the threaded rod transports the steel ball to the corresponding height, improving the convenience of loading the steel ball and avoiding the risk of it falling when the operator fixes the steel ball at a height. The drive device is activated to separate the extrusion plate from the roller frame. At this time, the steel ball will fall inside the semi-circular frame due to gravity, completing the unloading operation. The semi-circular frame limits the steel ball to ensure a stable falling trajectory, resulting in good repeatability of test data and accurate reflection of the steel ball's impact resistance. The high degree of automation reduces manual intervention and improves operational efficiency. The surface of the circular plate contacts the inner wall of the semi-circular frame. When the circular plate moves downwards, it cleans the inner wall of the semi-circular frame, preventing impurities generated by the falling steel ball from adhering to the inside of the semi-circular frame. The bending plate adjusts its moving distance according to the rotation angle of the extrusion plate to handle the loading and unloading of steel balls of different specifications, improving the testing efficiency of the steel ball.

[0016] This invention features a grooved plate inside a limiting cylinder, which acts as an impact platform for testing. When a steel ball falls, it impacts the grooved plate. After testing, the steel ball is contained by the limiting cylinder, preventing it from bouncing off the impact and flying elsewhere. An inclined plate inside the limiting cylinder further restricts the steel ball's movement, allowing it to slide into the grooved plate after its elasticity disappears. The ball then rolls out via a discharge rack for collection. An electric actuator pushes a sliding frame to move at the top of the grooved plate, adjusting the position of the grooved plate to allow operators to place the steel ball on top for loading, thus improving the convenience of drop testing.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the protective component of the present invention; Figure 4 This is another structural schematic diagram of the protective component of the present invention; Figure 5 This is a schematic diagram of the overall structure of the drop test component of the present invention; Figure 6 This is another structural schematic diagram of the drop test component of the present invention; Figure 7 This is a schematic diagram of the extrusion disc structure of the present invention; Figure 8 This is a schematic diagram of the overall structure of the protective component of the present invention; Figure 9 This is another structural schematic diagram of the protective component of the present invention; Figure 10 This is a schematic diagram of the sliding frame structure of the present invention; Figure 11 This is a schematic diagram of the process structure of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base; 2. Protective component; 3. Drop test component; 4. Limiting component; 10. Fixing plate; 11. Guardrail; 12. Support platform; 13. Ladder; 14. Through hole; 15. Protective frame; 16. Stabilizing frame; 20. Fixing frame; 21. Sliding hole frame; 22. Semi-circular frame; 23. Threaded rod; 24. Power unit; 25. Threaded hole frame; 26. Disc; 27. Vertical rod; 28. Circular plate; 29. ​​Shaft; 30. Bend plate; 31. Roller frame; 32. Extrusion disc; 33. Drive unit; 40. Unloading frame; 41. Grooved plate; 42. Limiting cylinder; 43. Electric actuator; 44. Connecting plate; 45. Grooved disc; 46. Inclined plate; 47. Pressure sensor; 48. Sliding frame. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-11 As shown, the present invention is a steel ball precision drop test equipment and test method, including a base 1, and a protective component 2 is provided on the top of the base 1; The protective component 2 includes a fixing plate 10, the bottom of which is fixedly connected to the top of the base 1. A support platform 12 is fixedly connected to the surface of the fixing plate 10. A guardrail 11 is fixedly connected to the top of the support platform 12. A protective frame 15 is fixedly connected to the top of the fixing plate 10. A through hole 14 is provided on the top of the support platform 12. A ladder 13 is fixedly connected to the top of the support platform 12. A stabilizing frame 16 is fixedly connected to the end of the support platform 12 away from the guardrail 11. Four fixing plates 10 are provided on the top of the base 1 to fix the support platform 12. A guardrail 11 is provided on the surface of the fixing plate 10. The guardrail 11 and the stabilizing frame 16 cooperate to surround the support platform 12 to prevent operators from falling when working on the top of the support platform 12. The ladder 13 is located below the through hole 14 so that operators can climb up using the ladder 13. A drop test component 3 is provided on the top of the support platform 12. A limit component 4 is provided at the bottom of the drop test component 3.

[0023] There are four fixed plates 10, which are located at the dead corners of the end of the support platform 12. There are four support platforms 12, which are distributed vertically on the surface of the fixed plates 10. There are three guardrails 11, which are located on the top of the support platform 12.

[0024] The bottom of the protective frame 15 is fixedly connected to the top of the support platform 12. The ladder 13 is inclined and the top of the ladder 13 is fixedly connected to the bottom of the support platform 12. The upper surface of the ladder 13 is located below the through hole 14. The guardrail 11 is symmetrically arranged with the stabilizer 16 as the center.

[0025] The drop test component 3 includes a fixed frame 20. The bottom of the fixed frame 20 is fixedly connected to the top of the support platform 12. A semi-circular frame 22 is fixedly connected to the end of the fixed frame 20 away from the support platform 12. A sliding hole frame 21 is fixedly connected to the surface of the semi-circular frame 22. A power unit 24 is fixedly connected to the top of the inner wall of the fixed frame 20. A threaded rod 23 is fixedly connected to the output end of the power unit 24. A threaded hole frame 25 is threadedly connected to the surface of the threaded rod 23. A disc 26 is fixedly connected to the bottom of the threaded hole frame 25. A vertical rod 27 is fixedly connected to the bottom of the disc 26. A circular plate 28 is fixedly connected to the bottom of the vertical rod 27. A shaft 29 is fixedly connected to the inner wall of the circular plate 28. A bent plate 30 is rotatably connected to the surface of the shaft 29. A roller frame 31 is fixedly connected to the top of the bent plate 30. The bottom of the disc 26 is fixedly connected to the... A drive device 33 is fixedly connected, and an extrusion plate 32 is fixedly connected to the output end of the drive device 33. When the screw hole frame 25 moves downward, the circular plate 28 is pushed to move inside the semi-circular frame 22 through the connection between the circular plate 26 and the vertical rod 27. After the bottom of the circular plate 28 contacts the top of the steel ball, the drive device 33 is activated to drive the extrusion plate 32 to rotate. When the extrusion plate 32 rotates, it contacts the roller frame 31. The inclination of the extrusion plate 32 pushes the roller frame 31 to rotate while rotating towards the outer end of the circular plate 28. When the roller frame 31 rotates towards the outer end of the circular plate 28, it will push the bent plate 30 to move closer to each other. When the bent plate 30 moves closer to each other, it will clamp the steel ball. After the lower surface of the bent plate 30 contacts the lower surface of the steel ball, it will hold it, improving the stability of the bent plate 30 in clamping and fixing the steel ball.

[0026] The end of the fixed frame 20 away from the support platform 12 extends to the outer end of the protective frame 15, the bottom of the semi-circular frame 22 extends to the lower surface of the fixed plate 10, the bottom of the threaded rod 23 extends to the bottom of the semi-circular frame 22, and three sliding hole frames 21 are provided.

[0027] The surface of the circular plate 28 is in contact with the inner wall of the semi-circular frame 22, the surface of the screw hole frame 25 is in contact with the inner wall of the semi-circular frame 22, and four bent plates 30 are provided, which are arranged circumferentially around the circular plate 28.

[0028] The top of the roller frame 31 extends to the outer end of the top of the circular plate 28. The surface of the extrusion disc 32 contacts the surface of the roller frame 31. The end of the extrusion disc 32 near the roller frame 31 is inclined. The center of the bending plate 30 extends into the interior of the sliding hole frame 21.

[0029] The limiting component 4 includes a grooved plate 41, a connecting plate 44 fixedly connected to the surface of the grooved plate 41, and an end of the connecting plate 44 away from the grooved plate 41 fixedly connected to the surface of the base 1. An electric push rod 43 is fixedly connected to the inner wall of the grooved plate 41, and a sliding frame 48 is fixedly connected to the end of the electric push rod 43 away from the grooved plate 41. A pressure sensor 47 is mounted on the top of the sliding frame 48, and a grooved disk 45 is fixedly connected to the top of the pressure sensor 47. A limiting cylinder 42 is fixedly connected to the surface of the grooved disk 45, and an inclined plate 46 is fixedly connected to the inner wall of the limiting cylinder 42. The unloading rack 40 is connected to the test platform. A grooved plate 45 is set inside the limiting cylinder 42. The grooved plate 45 acts as an impact table for testing. When the steel ball falls, it will impact the grooved plate 45. After the test, the steel ball will be limited by the limiting cylinder 42 to prevent it from flying to other places after the impact. An inclined plate 46 is set inside the limiting cylinder 42 to limit the steel ball. After the elasticity of the steel ball is lost, it will slide into the grooved plate 45 due to the inclination of the inclined plate 46. The steel ball will roll out through the unloading rack 40 for collection after the test.

[0030] The inner wall of the sliding frame 48 is slidably connected to the surface of the groove plate 41. The end of the groove plate 41 extends to the outer end of the base 1. The bottom of the groove plate 41 is horizontally set with the bottom of the base 1. The limiting cylinder 42 is located below the semi-circular frame 22. There are two inclined plates 46. The two inclined plates 46 are symmetrically arranged with the unloading rack 40 as the center. There are two unloading racks 40. The two unloading racks 40 are symmetrically arranged with the inclined plates 46 as the center. The center of the grooved plate 45 is located at the end of the two inclined plates 46 that are close to each other.

[0031] The testing method for a steel ball precision drop test device includes the following steps: S1: A guardrail 11 is provided on the surface of the fixed plate 10. The guardrail 11 and the stabilizer 16 work together to surround the support platform 12 to prevent operators from falling when working on the top of the support platform 12. S2: Start the power unit 24 to drive the threaded rod 23 to rotate. When the threaded rod 23 rotates, it will drive the screw hole frame 25 to move downward. When the screw hole frame 25 moves downward, it will push the circular plate 28 to move inside the semi-circular frame 22 through the connection between the disc 26 and the vertical rod 27. When the bottom of the circular plate 28 contacts the top of the steel ball. S3: When the extrusion disc 32 rotates, it contacts the roller frame 31. The inclination of the extrusion disc 32 pushes the roller frame 31 to rotate while rotating towards the outer end of the circular plate 28. When the roller frame 31 rotates towards the outer end of the circular plate 28, it will push the bending plate 30 to move closer to each other. When the bending plate 30 moves closer to each other, it will clamp the steel ball. S4: The drive device 33 drives the extrusion plate 32 to separate from the roller frame 31. At this time, the steel ball will separate from the bending plate 30 by gravity and fall inside the semi-circular frame 22 to complete the feeding operation of the steel ball. The semi-circular frame 22 is used to limit the steel ball to ensure that the falling trajectory of the steel ball is stable and the test data has good repeatability. S5: The grooved plate 45 is an impact test platform. When the steel ball falls, it will impact the grooved plate 45. After the test, the steel ball will be limited by the limiting cylinder 42 to prevent the steel ball from flying to other places after the impact.

[0032] In use, four fixing plates 10 are set on the top of the base 1 to fix the support platform 12. A guardrail 11 is set on the surface of the fixing plate 10. The guardrail 11 and the stabilizer 16 work together to surround the support platform 12 to prevent the operator from falling when working on the top of the support platform 12. The ladder 13 is set below the through hole 14 so that the operator can climb up by climbing the ladder 13. A protective frame 15 is set on the top of the support platform 12 at the top layer. The protective frame 15 protects the top support platform 12 and further improves the safety of the operator when working at height. After the test steel ball is placed inside the limiting component 4, the power device 24 is started to drive the threaded rod 23 to rotate. When the threaded rod 23 rotates, it drives the screw hole frame 25 to move downward. When the screw hole frame 25 moves downward, it pushes the circular plate 28 to move inside the semi-circular frame 22 through the connection between the disc 26 and the vertical rod 27. When the bottom of the circular plate 28 contacts the top of the steel ball, the drive device 33 is started to drive the extrusion disc 32 to rotate. When the extrusion disc 32 rotates, it contacts the roller frame 31. The inclination of the extrusion disc 32 is utilized to... While pushing the roller frame 31 to rotate, it also rotates towards the outer end of the circular plate 28. As the roller frame 31 rotates towards the outer end of the circular plate 28, it pushes the bent plates 30 to move closer together. This movement of the bent plates 30 towards each other clamps the steel ball. The lower surface of the bent plates 30 contacts the lower surface of the steel ball, thus holding it in place and improving the stability of the bent plates 30 in clamping and fixing the steel ball. This prevents the steel ball from slipping when the circular plate 28 moves upward. After the steel ball is fixed, the power device 24 drives the threaded rod 23 to reverse direction. When the screw hole frame 25 moves the circular plate 28 upward, the threaded rod 23 transports the steel ball to the corresponding height, improving the convenience of loading the steel ball and preventing it from falling when the operator fixes it at a height. The drive device 33 is activated to separate the extrusion plate 32 from the roller frame 31. At this time, the steel ball will separate from the bending plate 30 by gravity and fall inside the semi-circular frame 22, completing the steel ball unloading operation. The semi-circular frame 22 limits the steel ball's movement, ensuring a stable trajectory for its fall. (Testing...) The data has good repeatability and can accurately reflect the impact resistance of the steel ball. It has a high degree of automation, reduces manual intervention, and improves operating efficiency. The surface of the circular plate 28 is in contact with the inner wall of the semi-circular frame 22. When the circular plate 28 moves downward, it will clean the inner wall of the semi-circular frame 22 to prevent impurities generated by the falling steel ball from adhering to the inside of the semi-circular frame 22. The bending plate 30 will adjust the moving distance between them according to the rotation angle of the extrusion plate 32 so as to process steel balls of different specifications for loading and unloading, thereby improving the testing efficiency of the steel ball. A grooved plate 45 is provided inside the limiting cylinder 42. The grooved plate 45 serves as an impact platform for testing. When the steel ball falls, it will impact the grooved plate 45. After the test, the steel ball will be limited by the limiting cylinder 42 to prevent it from bouncing up and flying to other places after the impact. An inclined plate 46 is provided inside the limiting cylinder 42 to limit the steel ball so that after the elasticity of the steel ball disappears, it will slide into the grooved plate 45 due to the inclination of the inclined plate 46. The steel ball will roll out through the unloading rack 40 for collection after the test. When the electric push rod 43 pushes the sliding frame 48 to move on the top of the grooved plate 41, it will adjust the position of the grooved plate 45 so that the operator can place the steel ball on the top of the grooved plate 45 for loading, improving the convenience of drop testing.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A steel ball precision drop test device, comprising a base (1), characterized in that, The base (1) is provided with a protective component (2) on its top. The protective component (2) includes a fixing plate (10), the bottom of the fixing plate (10) is fixedly connected to the top of the base (1), a support platform (12) is fixedly connected to the surface of the fixing plate (10), a guardrail (11) is fixedly connected to the top of the support platform (12), a protective frame (15) is fixedly connected to the top of the fixing plate (10), a through hole (14) is opened on the top of the support platform (12), a ladder (13) is fixedly connected to the top of the support platform (12), a stabilizing frame (16) is fixedly connected to the end of the support platform (12) away from the guardrail (11), a drop test component (3) is provided on the top of the support platform (12), and a limit component (4) is provided at the bottom of the drop test component (3).

2. The steel ball precision drop test equipment according to claim 1, characterized in that: The number of fixed plates (10) is four, and the four fixed plates (10) are located at the dead corner of the end of the support platform (12). The number of support platforms (12) is four, and the four support platforms (12) are distributed vertically on the surface of the fixed plates (10). The number of guardrails (11) is three, and the three guardrails (11) are located on the top of the support platform (12).

3. The steel ball precision drop test equipment according to claim 2, characterized in that: The bottom of the protective frame (15) is fixedly connected to the top of the support platform (12). The ladder (13) is inclined. The top of the ladder (13) is fixedly connected to the bottom of the support platform (12). The upper surface of the ladder (13) is located below the through hole (14). The guardrail (11) is symmetrically arranged with the stabilizer (16) as the center.

4. The steel ball precision drop test equipment according to claim 3, characterized in that: The drop test component (3) includes a fixed frame (20), the bottom of which is fixedly connected to the top of the support platform (12). A semi-circular frame (22) is fixedly connected to one end of the fixed frame (20) away from the support platform (12). A sliding hole frame (21) is fixedly connected to the surface of the semi-circular frame (22). A power device (24) is fixedly connected to the top of the inner wall of the fixed frame (20). A threaded rod (23) is fixedly connected to the output end of the power device (24). A threaded hole frame (25) is threadedly connected to the surface of the threaded rod (23). A disc (26) is fixedly connected to the bottom of the screw hole frame (25). A vertical rod (27) is fixedly connected to the bottom of the disc (26). A circular plate (28) is fixedly connected to the bottom of the vertical rod (27). A shaft (29) is fixedly connected to the inner wall of the circular plate (28). A bent plate (30) is rotatably connected to the surface of the shaft (29). A roller frame (31) is fixedly connected to the top of the bent plate (30). A drive device (33) is fixedly connected to the bottom of the disc (26). An extrusion disc (32) is fixedly connected to the output end of the drive device (33).

5. The steel ball precision drop test device according to claim 4, characterized in that: The fixed frame (20) extends from the end away from the support platform (12) to the outer end of the protective frame (15), the bottom of the semicircular frame (22) extends to the lower surface of the fixed plate (10), the bottom of the threaded rod (23) extends to the bottom of the semicircular frame (22), and the number of sliding hole frames (21) is three.

6. The steel ball precision drop test equipment according to claim 5, characterized in that: The surface of the circular plate (28) is in contact with the inner wall of the semicircular frame (22), the surface of the screw hole frame (25) is in contact with the inner wall of the semicircular frame (22), and the number of the bent plates (30) is four, with the four bent plates (30) arranged circumferentially around the circular plate (28).

7. The steel ball precision drop test device according to claim 6, characterized in that: The top of the roller frame (31) extends to the top outer end of the circular plate (28), the surface of the extrusion disc (32) contacts the surface of the roller frame (31), the end of the extrusion disc (32) near the roller frame (31) is inclined, and the center of the bending plate (30) extends into the interior of the sliding hole frame (21).

8. The steel ball precision drop test device according to claim 7, characterized in that: The limiting component (4) includes a grooved plate (41), a connecting plate (44) is fixedly connected to the surface of the grooved plate (41), one end of the connecting plate (44) away from the grooved plate (41) is fixedly connected to the surface of the base (1), an electric push rod (43) is fixedly connected to the inner wall of the grooved plate (41), a sliding frame (48) is fixedly connected to the end of the electric push rod (43) away from the grooved plate (41), a pressure sensor (47) is installed on the top of the sliding frame (48), a grooved disk (45) is fixedly connected to the top of the pressure sensor (47), a limiting cylinder (42) is fixedly connected to the surface of the grooved disk (45), an inclined plate (46) is fixedly connected to the inner wall of the limiting cylinder (42), and a discharge rack (40) is connected to the surface of the limiting cylinder (42).

9. The steel ball precision drop test device according to claim 8, characterized in that: The inner wall of the sliding frame (48) is slidably connected to the surface of the groove plate (41). The end of the groove plate (41) extends to the outer end of the base (1). The bottom of the groove plate (41) and the bottom of the base (1) are horizontally arranged. The limiting cylinder (42) is located below the semi-circular frame (22). There are two inclined plates (46). The two inclined plates (46) are symmetrically arranged with the unloading rack (40) as the center. There are two unloading racks (40). The two unloading racks (40) are symmetrically arranged with the inclined plates (46) as the center. The center of the grooved plate (45) is located at the end where the two inclined plates (46) are close to each other.

10. The testing method of the steel ball precision drop test equipment according to claim 9, characterized in that, Includes the following steps: S1: A guardrail (11) is provided on the surface of the fixed plate (10). The guardrail (11) and the stabilizer (16) work together to surround the support platform (12) to prevent the operator from falling when working on the top of the support platform (12). S2: Start the power unit (24) to drive the threaded rod (23) to rotate. When the threaded rod (23) rotates, it will drive the screw hole frame (25) to move downward. When the screw hole frame (25) moves downward, it will push the circular plate (28) to move inside the semi-circular frame (22) through the connection between the disc (26) and the vertical rod (27). When the bottom of the circular plate (28) contacts the top of the steel ball; S3: When the extrusion plate (32) rotates, it contacts the roller frame (31). The inclination of the extrusion plate (32) pushes the roller frame (31) to rotate while rotating towards the outer end of the circular plate (28). When the roller frame (31) rotates towards the outer end of the circular plate (28), it will push the bending plate (30) to move closer to each other. When the bending plate (30) moves closer to each other, it will clamp the steel ball. S4: The drive device (33) drives the extrusion plate (32) to separate from the roller frame (31). At this time, the steel ball will separate from the bending plate (30) by gravity and fall inside the semi-circular frame (22) to complete the feeding operation of the steel ball. The semi-circular frame (22) is used to limit the steel ball to ensure that the falling trajectory of the steel ball is stable and the test data has good repeatability. S5: The grooved plate (45) is used as an impact test platform. When the steel ball falls, it will impact the grooved plate (45). After the test, the steel ball will be limited by the limiting cylinder (42) to prevent the steel ball from falling and bouncing up due to the impact and flying to other places.

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