A ball impact testing device

Abstract

This utility model relates to the field of ball drop testing, specifically to a ball drop impact testing device, comprising: a spring-loaded floating pin wall including a plurality of floating pins, the floating pins being disposed between an upper perforated plate and a lower perforated plate; an adjustment mechanism connecting the upper and lower perforated plates; wherein, the floating pins are configured to move with the curvature of the cover plate surface when subjected to external pressure; the adjustment mechanism locks the position of the floating pins to form a support surface matching the curvature of the cover plate surface by driving the upper and lower perforated plates to be relatively misaligned; the adjustment mechanism resets the floating pins to a planar state by driving the upper and lower perforated plates to be coaxially aligned. This application solves the problem of uneven contact caused by existing fixed planar supports by using a floating pin array to adapt to the shape of the cover plate and using the adjustment mechanism to drive the upper and lower perforated plates to be relatively misaligned to fix the pin positions, thus ensuring effective support for the entire surface of irregularly shaped cover plates.

Description

Technical Field

[0001] This utility model relates to the field of ball drop testing, specifically to a ball drop impact testing device. Background Technology

[0002] Currently, in drop ball impact testing, the support surface of the cover plate is usually designed as a fixed plane, which cannot accommodate irregularly shaped cover plates (such as curved or irregular shapes). This leads to difficulties in supporting irregularly shaped cover plates, uneven contact, and resonance phenomena, thus affecting the accuracy of the drop ball strength test results. Existing equipment is difficult to achieve compatible testing of cover plates of various shapes and urgently needs improvement. Utility Model Content

[0003] To address the aforementioned issues, this application provides a ball-drop impact testing device that is compatible with multi-shaped cover plates.

[0004] This application discloses a falling ball impact testing device, comprising: A spring-loaded floating needle wall includes several floating needles, which are inserted between an upper perforated plate and a lower perforated plate. Adjustment mechanism, connecting the upper perforated plate and the lower perforated plate; The floating needle is configured to move with the curvature of the cover plate surface when subjected to external pressure; the adjustment mechanism locks the position of the floating needle by driving the upper and lower perforated plates to form a support surface that matches the curvature of the cover plate surface; the adjustment mechanism resets the floating needle to a planar state by driving the upper and lower perforated plates to coaxial alignment.

[0005] Furthermore, the floating needles are arranged in an array.

[0006] Furthermore, it also includes a magnetic attraction device for attracting the iron ball used in the test.

[0007] Furthermore, the lower perforated plate is connected to the lower perforated plate guide groove.

[0008] Furthermore, it also includes a laser distance sensor.

[0009] Furthermore, it also includes an adjustable positioning block for fixing the cover plate.

[0010] Furthermore, the floating needle is provided with a buffer pad at its end.

[0011] Furthermore, the adjustment mechanism supports angle adjustment of the upper and lower perforated plates within the range of 0°-30°.

[0012] Compared with the prior art, this application has at least the following beneficial effects: 1. The spring floating needle wall and the adjustment mechanism of this application work together to adapt to the shape of the cover plate through the floating needle array (the floating needles move with the shape when the irregular cover plate is pressed down), and the adjustment mechanism drives the upper and lower perforated plates to be relatively misaligned to fix the needle position, thereby solving the problem of uneven contact caused by the existing fixed plane support and ensuring effective support of the entire surface of the irregular cover plate.

[0013] 2. The magnetic attraction device of this application provides a stable constraint force in the ball drop impact test, solves the test interference problem caused by cover plate displacement, and ensures the accuracy of the impact position.

[0014] 3. The collaborative monitoring of the laser distance sensor and the guide groove of the lower orifice plate in this application provides real-time feedback of impact position data and constrains the movement trajectory of the lower orifice plate, suppressing the resonance phenomenon in the background technology and improving the accuracy of the ball drop strength test results (error rate reduced by ≥15%).

[0015] 4. The multi-angle adjustment function of the adjustment mechanism in this application supports the axial alignment or misalignment control of the upper / lower orifice plates, breaking through the single-plane testing limitation of existing equipment, and realizing compatible testing of planar, curved and inclined cover plates. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the ball drop impact testing device provided by this utility model; Figure 2 A schematic diagram of the initial state of the ball-dropping impact testing device provided by this utility model; Figure 3 A schematic diagram of the working state of the ball drop impact testing equipment provided by this utility model; In the diagram: 1. Magnetic suction device; 2. Upper perforated plate; 3. Adjustment mechanism; 4. Lower perforated plate; 5. Lower perforated plate guide groove; 6. Spring floating pin wall; 7. Cover plate. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0018] See Figure 1 A ball-drop impact testing device, comprising: The spring floating needle wall 6 includes a number of floating needles, which are inserted between the upper perforated plate 2 and the lower perforated plate 4. The floating needles are arranged in an array, and the ends of the floating needles are provided with buffer pads to avoid damage to the surface of the cover plate. Adjustment mechanism 3 connects the upper perforated plate 2 and the lower perforated plate 4, and the lower perforated plate is connected to the lower perforated plate guide groove; The floating needle is configured to move with the curvature of the cover plate surface when subjected to external pressure; the adjustment mechanism 3 locks the position of the floating needle by driving the upper perforated plate 2 and the lower perforated plate 4 to form a support surface that matches the curvature of the cover plate surface; the adjustment mechanism 3 resets the floating needle to a planar state by driving the upper perforated plate 2 and the lower perforated plate 4 to coaxial alignment.

[0019] The ball drop impact testing equipment also includes a magnetic attraction device, which can be installed on the crossbar of the equipment and is used to attract the iron ball used for testing.

[0020] The ball impact testing equipment also includes a laser distance sensor.

[0021] The ball impact testing equipment also includes an adjustable positioning block for fixing the cover plate.

[0022] The adjustment mechanism supports angle adjustment of the upper and lower perforated plates within the range of 0°-30°.

[0023] join Figure 2 , 3 When a drop ball impact test is required, the overall workflow is as follows: Initialization: The device adjusts the upper orifice plate 2 and the lower orifice plate 4 to be coaxially aligned by the adjustment mechanism 3, and the spring floating needle wall 6 is in the plane reset state.

[0024] Shape adaptation: Place the cover plate 7 into the spring floating needle wall 6, press down the cover plate 7 to make the floating needle move with the shape of the cover plate 7; adjust the adjustment mechanism 3 to drive the upper hole plate 2 and the lower hole plate 4 to be relatively misaligned, lock the position of the floating needle, and form a support surface that adapts to the curvature of the cover plate.

[0025] Test execution: The ball drop controller releases the iron ball, and the laser distance sensor monitors the impact position and distance to ensure uniform force. The adjustable positioning block fixes the cover plate to avoid resonance and displacement.

[0026] Reset: After the test, adjust mechanism 3 to align the upper hole plate 2 and the lower hole plate 4 coaxially, and the spring force pushes the floating needle back to the plane state.

[0027] Key mechanism: The floating pins of the spring-loaded floating pin wall are fixed by misalignment of the perforated plate and reset by the spring force. This is the core innovation of the solution and solves the problem of dynamic adjustment that is compatible with multiple shapes.

[0028] The above embodiments describe the device structure and working method in detail, but the scope of protection of this utility model is not limited thereto. It may also include adjustment mechanisms based on spring-loaded floating needle walls, multi-shape compatible testing methods, etc. Those skilled in the art can make various modifications and improvements (such as component material replacement) without departing from the concept of this utility model, and these should all fall within the scope of protection of this utility model. The scope of protection is defined by the claims.

Claims

1. A falling sphere impact testing apparatus characterized by, include: A spring-loaded floating needle wall includes several floating needles, which are inserted between an upper perforated plate and a lower perforated plate. Adjustment mechanism, connecting the upper perforated plate and the lower perforated plate; The floating needle is configured to move with the curvature of the cover plate surface when subjected to external pressure; the adjustment mechanism locks the position of the floating needle by driving the upper and lower perforated plates to form a support surface that matches the curvature of the cover plate surface; the adjustment mechanism resets the floating needle to a planar state by driving the upper and lower perforated plates to coaxial alignment.

2. The ball drop impact testing apparatus of claim 1, wherein, The floating needles are arranged in an array.

3. The ball-dropping impact testing device according to claim 1, characterized in that, It also includes a magnetic attraction device for attracting iron balls used in the test.

4. The ball-dropping impact testing device according to claim 1, characterized in that, The lower perforated plate is connected to the lower perforated plate guide groove.

5. The ball-dropping impact testing device according to claim 1, characterized in that, It also includes a laser distance sensor.

6. The ball-dropping impact testing device according to claim 1, characterized in that, It also includes an adjustable positioning block for fixing the cover plate.

7. The ball-dropping impact testing device according to claim 1, characterized in that, The floating needle has a buffer pad at its end.

8. The ball-dropping impact testing device according to claim 1, characterized in that, The adjustment mechanism supports angle adjustment of the upper and lower perforated plates within the range of 0°-30°.

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