An adjustable drop test structure

Abstract

The utility model discloses an adjustable drop test structure relates to drop test device technical field, and the utility model discloses a base and clamp body, the base top end fixedly connected with support frame in the center place of one side proximity, the base top end is equipped with aluminum alloy frame in support frame proximity, the aluminum alloy frame bottom end is all fixedly connected with shock attenuation rubber pad in corner proximity, and shock attenuation rubber pad is contacted with the base, the aluminum alloy frame outside end all is fixedly connected with transparent explosion -proof toughened glass, the inside top end symmetry fixed connection of support frame is close to the center place has the limiting shaft, the utility model discloses in -through setting transparent explosion -proof toughened glass and aluminum alloy frame, thereby can prevent test piece fragment to fly out, cause harm to staff, and can prevent secondary rebound through setting shock attenuation rubber pad, and then can improve practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of drop test devices, specifically an adjustable drop test structure. Background Technology

[0002] In many fields such as electronics, automobiles, and medical devices, products inevitably encounter drops during transportation and use. The drop resistance of products is directly related to their quality reliability and service life. To ensure that products can meet the drop resistance requirements in practical applications, drop testing has become an indispensable and important part of product research and development and production. Different types and sizes of specimens require corresponding special fixtures. However, changing the fixtures of most drop test equipment is often cumbersome, requiring the use of multiple tools for disassembly and installation. This not only consumes a lot of time and manpower but also affects the efficiency of the test. In addition, during the drop test, some specimens may break due to the impact of the drop, and the resulting fragments are easy to fly around and cause injury to the staff. In order to address the above problems, the inventors have proposed an adjustable drop test structure to solve the above problems. Utility Model Content

[0003] To address the issues that changing the fixtures in most drop test equipment is often cumbersome, requiring the use of multiple tools for disassembly and installation, and that test specimens may break due to drop impact, resulting in fragments flying everywhere, the purpose of this invention is to provide an adjustable drop test structure.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: an adjustable drop test structure, including a base and a clamp body. A support frame is fixedly connected to the top of the base near the center of one side. An aluminum alloy frame is provided at the top of the base near the support frame. Shock-absorbing rubber pads are fixedly connected to the bottom of the aluminum alloy frame near the corners, and the shock-absorbing rubber pads are in contact with the base. Transparent explosion-proof tempered glass is fixedly connected to the outer ends of the aluminum alloy frame. Limiting shafts are symmetrically fixedly connected to the top of the support frame near the center. A three-pronged slider is slidably connected between the outer rings of the two limiting shafts. A support plate is fixedly connected to the front end of the three-pronged slider. A square box is fixedly connected to the bottom end of the support plate, and the square box and the center of the aluminum alloy frame are on the same horizontal plane. A mounting box is symmetrically slidably connected between the inner walls of the square box near the center. A circular shell is fixedly connected to the side end of the mounting box. An insertion shaft is slidably inserted into the side end of the circular shell. A connecting block is fixedly connected to the top of the clamp body. An insertion hole adapted to the insertion shaft is opened near the top of the side end of the connecting block.

[0005] Preferably, a circular disc is fixedly connected to the outer ring of the insert shaft near the center, and a return spring is fixedly connected to the side end of the circular disc and sleeved on the outer ring of the insert shaft, and the other end of the return spring is fixedly connected to the inner wall of the circular shell.

[0006] Preferably, a double-ended screw is rotatably connected between the two side walls of the square box, and both mounting boxes are threadedly rotatably connected to the double-ended screw. A second servo motor is provided on the side end of the square box, and the output end of the second servo motor passes through the square box and is fixedly connected to the double-ended screw.

[0007] Preferably, a lead screw is rotatably connected to the top of the support frame near the center, and a three-pronged slider is rotatably connected to the lead screw via a thread. A servo motor is provided at the top of the support frame near the center, and the output end of the servo motor passes through the support frame and is fixedly connected to the lead screw.

[0008] Preferably, a height line plate is fixedly connected to the center of the side end of the support frame, and a pointer block is fixedly connected to the end of the support plate near the height line plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting the insertion shaft, return spring and insertion hole, the clamp can be quickly disassembled and replaced, which makes it easy to replace the clamp with a suitable clamp according to the shape of the object being clamped. 2. By setting transparent explosion-proof tempered glass and aluminum alloy frame, the present invention can prevent specimen fragments from flying out and causing injury to workers. Furthermore, by setting shock-absorbing rubber pads, secondary rebound can be prevented, thereby improving its practicality. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the three-pronged slider structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the square box structure of this utility model.

[0014] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0015] In the diagram: 1. Base; 11. Support frame; 12. Servo motor one; 13. Height line plate; 2. Support plate; 21. Three-pronged slider; 22. Limiting shaft; 23. Lead screw; 24. Pointer block; 3. Square box; 31. Double-ended screw; 32. Servo motor two; 33. Mounting box; 34. Connecting block; 35. Socket; 36. Circular shell; 37. Insert shaft; 38. Circular disc; 39. Return spring; 4. Aluminum alloy frame; 41. Transparent explosion-proof tempered glass; 42. Shock-absorbing rubber pad; 5. Clamp body. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-4As shown, this utility model provides a technical solution: an adjustable drop test structure, including a base 1 and a clamp body 5. A support frame 11 is fixedly connected to the top of the base 1 near the center of one side. An aluminum alloy frame 4 is provided at the top of the base 1 near the support frame 11. Shock-absorbing rubber pads 42 are fixedly connected to the bottom of the aluminum alloy frame 4 near the corners, and the shock-absorbing rubber pads 42 are in contact with the base 1. Transparent explosion-proof tempered glass 41 is fixedly connected to the outer ends of the aluminum alloy frame 4. Symmetrically fixed at the top of the support frame 11 near the center of the top. A limit shaft 22 is connected to the two limit shafts 22. A three-pronged slider 21 is slidably connected between the outer rings of the two limit shafts 22. A support plate 2 is fixedly connected to the front end of the three-pronged slider 21. A square box 3 is fixedly connected to the bottom end of the support plate 2. The square box 3 and the aluminum alloy frame 4 are at the same horizontal plane. A mounting box 33 is symmetrically slidably connected between the inner walls of the square box 3 near the center. A circular shell 36 is fixedly connected to the side end of the mounting box 33. A insertion shaft 37 is slidably inserted into the side end of the circular shell 36. A connecting block 34 is fixedly connected to the top of the clamp body 5. The side end of the connecting block 34 is near the top. The mounting box 33 has a socket 35 that matches the insert shaft 37. The rectangular groove at the bottom of the mounting box 33 matches the connecting block 34, allowing the connecting block 34 to be engaged in the mounting box 33. This, together with the insert shaft 37 and the socket 35, achieves the positioning of the connecting block 34 and the clamp body 5. The bottom of the aluminum alloy frame 4 is a drop plate, and the shock-absorbing rubber pad 42 is made of nitrile rubber, which can buffer the impact vibration generated during the drop test. The transparent explosion-proof tempered glass 41 is provided to facilitate observation of the test process and prevent fragments from flying. The geometric center of the square box 3 and the geometric center of the aluminum alloy frame 4 are on the same horizontal plane to ensure that the dropped object falls vertically. This solution aims to protect the physical structure, but does not protect the circuit and software control. The proposed processing circuit is only to supplement the feasibility and authenticity of this utility model. This utility model does not require protection of the algorithm and circuit technology. It is worth emphasizing that although the electronic control program is not described in detail in this solution, those skilled in the art can be familiar with and apply it based on their professional knowledge.

[0018] A circular disc 38 is fixedly connected to the outer ring of the insert shaft 37 near the center.

[0019] The circular disc 38 is designed to facilitate the installation and fixation of the return spring 39, so that the return spring 39 can work.

[0020] A return spring 39 is fixedly connected to the side end of the circular disc 38 and sleeved on the outer ring of the insert shaft 37, and the other end of the return spring 39 is fixedly connected to the inner wall of the circular shell 36.

[0021] By adopting the above technical solution, the insertion shaft 37 can be pushed to stably insert into the insertion hole 35 under natural conditions, thereby achieving rapid locking of the clamp body 5.

[0022] A double-ended screw 31 is rotatably connected between the two side walls of the square box 3, and both mounting boxes 33 are threadedly rotatably connected to the double-ended screw 31.

[0023] By adopting the above technical solution, the two mounting boxes 33 are respectively provided with internal threaded holes that are adapted to the threads at both ends of the double-ended screw 31, and are threadedly rotatably connected to the double-ended screw 31. Rotating the double-ended screw 31 can drive the two mounting boxes 33 to move synchronously in opposite directions.

[0024] A servo motor 32 is provided on the side of the square box 3. The output end of the servo motor 32 passes through the square box 3 and is fixedly connected to the double-headed screw 31.

[0025] By adopting the above technical solution, the second working servo motor 32 is started, thereby causing the fixedly connected double-headed screw 31 to rotate.

[0026] The support frame 11 has a lead screw 23 rotatably connected to the top of the support frame near the center, and the three-pronged slider 21 is threadedly connected to the lead screw 23.

[0027] By adopting the above technical solution, after the lead screw 23 rotates, the threaded rotating three-pronged slider 21 can move horizontally under the action of the limiting shaft 22.

[0028] A servo motor 12 is installed at the top of the support frame 11 near the center. The output end of the servo motor 12 passes through the support frame 11 and is fixedly connected to the lead screw 23.

[0029] By adopting the above technical solution, the servo motor 12 causes the fixedly connected lead screw 23 to rotate.

[0030] A height line plate 13 is fixedly connected to the center of the side end of the support frame 11, and a pointer block 24 is fixedly connected to the end of the support plate 2 near the height line plate 13.

[0031] By adopting the above technical solution, the tip of the pointer block 24 points to the scale line of the height plate 13, making it easy to read the current drop height intuitively.

[0032] Working principle: When using this device, the object (test piece) to be dropped is first placed between the two clamp bodies 5. Then, the second working servo motor 32 is started, which causes the fixedly connected double-headed screw 31 to rotate. This causes the threaded rotating mounting box 33 to drive the two clamp bodies 5 to move towards each other, thereby achieving the clamping effect on the object. By starting the first working servo motor 12, the fixedly connected lead screw 23 is rotated, which causes the threaded rotating three-pronged slider 21 to move horizontally under the action of the two limit shafts 22, thereby realizing drop tests at different heights. When it is necessary to replace different clamp bodies 5 to fit different objects, the limiting effect on the insertion hole 35 can be released by pulling the insertion shaft 37 (compressing the return spring 39) to the side away from the center of the square box 3. At this time, the connecting block 34 and clamp body 5 at the bottom of the mounting box 33 can be removed, and the force on the insertion shaft 37 can be released after replacement. When the object falls from the two clamp bodies 5, it will fall into the aluminum alloy frame 4. With the help of the transparent explosion-proof tempered glass 41, the object fragments can be prevented from flying out, thus avoiding injury to the staff.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An adjustable drop test structure, comprising a base (1) and a clamp body (5), characterized in that: A support frame (11) is fixedly connected to the top of the base (1) near the center of one side. An aluminum alloy frame (4) is provided at the top of the base (1) near the support frame (11). Shock-absorbing rubber pads (42) are fixedly connected to the bottom of the aluminum alloy frame (4) near the corners. The shock-absorbing rubber pads (42) are in contact with the base (1). Transparent explosion-proof tempered glass (41) is fixedly connected to the outer end of the aluminum alloy frame (4). The support frame (11) has a symmetrical fixed connection of a limiting shaft (22) near the center of the top of the inside. A three-pronged slider (21) is slidably connected between the outer rings of the two limiting shafts (22). A support plate (2) is fixedly connected to the front end of the three-pronged slider (21). A square box (3) is fixedly connected to the bottom end of the support plate (2). The square box (3) and the aluminum alloy frame (4) are on the same horizontal plane. An installation box (33) is symmetrically slidably connected between the inner walls of the square box (3) near the center. A circular shell (36) is fixedly connected to the side end of the installation box (33). A plug shaft (37) is slidably inserted into the side end of the circular shell (36). A connecting block (34) is fixedly connected to the top of the clamp body (5). A plug hole (35) that matches the plug shaft (37) is opened near the top of the side end of the connecting block (34).

2. The adjustable drop test structure as described in claim 1, characterized in that, The outer ring of the insert shaft (37) is fixedly connected to a circular disc (38) near the center.

3. The adjustable drop test structure as described in claim 2, characterized in that, A return spring (39) is fixedly connected to the side end of the annular disk (38) and sleeved on the outer ring of the insert shaft (37), and the other end of the return spring (39) is fixedly connected to the inner wall of the circular shell (36).

4. The adjustable drop test structure as described in claim 1, characterized in that, The square box (3) is rotatably connected between its two side walls by a double-headed screw (31), and both mounting boxes (33) are threadedly rotatably connected to the double-headed screw (31).

5. The adjustable drop test structure as described in claim 4, characterized in that, The square box (3) is equipped with a servo motor 2 (32) on its side end. The output end of the servo motor 2 (32) passes through the square box (3) and is fixedly connected to the double-headed screw (31).

6. The adjustable drop test structure as described in claim 1, characterized in that, The support frame (11) has a lead screw (23) rotatably connected at the top of the inner end near the center, and the three-pronged slider (21) is rotatably connected to the lead screw (23) by a thread.

7. An adjustable drop test structure as described in claim 6, characterized in that, A servo motor (12) is provided at the top of the support frame (11) near the center. The output end of the servo motor (12) passes through the support frame (11) and is fixedly connected to the lead screw (23).

8. The adjustable drop test structure as described in claim 1, characterized in that, A height line plate (13) is fixedly connected to the center of the side end of the support frame (11), and a pointer block (24) is fixedly connected to one end of the support plate (2) near the height line plate (13).

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