A vibration test chamber

Abstract

The utility model relates to the technical field of vibration support, concretely to a vibration test box. The utility model discloses a front panel subassembly, upper panel, two inside silica gel, upper box, lower box subassembly and two inductors, the inside of lower box subassembly is equipped with vibration device, vibration device includes motor mounting plate, both sides of motor mounting plate are fixedly connected with lower box subassembly, the top fixedly connected with two motors of motor mounting plate, the output fixedly connected with cam of motor, one end fixedly connected with linkage lever of cam, one side fixedly connected with fixed end of linkage lever, one side fixedly connected with linkage board of fixed end, one side fixedly connected with vibration plate of linkage board. The utility model has solved the problem that the traditional vibration test box vibration source is directly driven by the design form of the box body of vibration motor, and the box body vibration frequency is influenced by the vibration motor instantaneous output characteristic and produces greater fluctuation.

Description

Technical Field

[0001] This utility model relates to the field of vibration support technology, and in particular to a vibration testing box. Background Technology

[0002] In the electronics manufacturing industry, especially the 3C electronics industry (covering mobile phones, tablets, car keys, remote controls and other devices and related modules), loose parts are a core issue affecting product quality and lifespan, directly related to the stability and reliability of equipment in long-term use. Currently, in the board-level testing and final performance testing stages of the production process for 3C electronic equipment and modules, in order to identify potential loose parts and verify the structural stability of the product, the industry generally uses vibration test chambers to build simulated usage environments and detect the assembly firmness of parts through vibration.

[0003] In the existing technology, the vibration source of the vibration test chamber is mostly designed to directly drive the chamber body with a vibration motor. Since the output power of the vibration motor is directly applied to the chamber body without transition buffer or stable transmission structure, the vibration frequency of the chamber body is easily affected by the instantaneous output characteristics of the vibration motor and fluctuates greatly, making it difficult to maintain the stable vibration frequency required for the test. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing vibration test chambers, where the vibration source is often directly driven by a vibration motor. This invention proposes a new type of vibration test chamber.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vibration test chamber, comprising a front panel assembly, an upper panel, two inner silicone pads, an upper chamber, a lower chamber assembly, and two sensors. The lower chamber assembly contains a vibration device, which includes a motor mounting plate. Both sides of the motor mounting plate are fixedly connected to the lower chamber assembly. Two motors are fixedly connected to the top of the motor mounting plate. A cam is fixedly connected to the output end of each motor. A linkage rod is fixedly connected to one end of the cam. A fixed end is fixedly connected to one side of the linkage rod. A linkage plate is fixedly connected to one side of the fixed end. A vibration plate is fixedly connected to one side of the linkage plate. A connecting plate is fixedly connected to the top of the vibration plate.

[0006] The effect achieved by the above components is as follows: after the motor starts, its output shaft drives the cam to rotate around the axis. As the cam rotates, its eccentric structure continuously pushes the linkage rod to move back and forth, thereby driving the fixed end connected to the linkage rod to perform continuous reciprocating motion synchronously. The reciprocating motion of the fixed end is transmitted to the linkage plate, causing the linkage plate to drive the vibrating plate to produce regular vibration.

[0007] Preferably, a silicone pad is fixedly connected to the top of the connecting plate.

[0008] The effect achieved by the above components is to fix the silicone pad to the connecting plate and increase the friction.

[0009] Preferably, the bottom end of the linkage plate is fixedly connected to two lifting plates, and a linear slide is fixedly connected to the side of each of the two lifting plates that is far apart from each other.

[0010] The effect achieved by the above components is that the movement of the linkage plate drives the adjustment of the lifting plate position, thereby moving the linear slide position.

[0011] Preferably, the linear slide block is internally slidably connected to a linear slide rail.

[0012] The effect achieved by the above components is that the linear slide block moves and slides on the linear guide rail.

[0013] Preferably, a guide rail fixing plate is fixedly connected to one side of the linear slide rail, and one end of the four guide rail fixing plates is fixedly connected to the motor mounting plate.

[0014] The effect achieved by the above components is that the guide rail fixing plate is fixed on the motor mounting plate, thereby stabilizing the position of the linear guide rail.

[0015] Preferably, the lower housing assembly is provided with a lifting device on its exterior. The lifting device includes two handles, each handle having a U-shaped cross-section, and the arc surface of each handle is fixedly connected to two connecting rods.

[0016] The effect achieved by the above components is that the connecting rod is fixed to the handle.

[0017] Preferably, the arc surface of the connecting rod is rotatably connected to a limit block, and one end of the limit block is fixedly connected to a threaded rod.

[0018] The effect achieved by the above components is that the threaded rod is fixed on the limiting block, and the connecting rod rotates on the limiting block.

[0019] Preferably, the arc surface of the threaded rod is slidably connected with a washer ring.

[0020] The effect achieved by the above components is that the washer and the threaded rod are compatible.

[0021] Preferably, the threaded rod has a nut connected to its arc-shaped surface.

[0022] The effect achieved by the above components is that the nut and the threaded rod are compatible.

[0023] In summary, the beneficial effects of this utility model are as follows:

[0024] In this invention, when vibration testing is required, the product is placed on a silicone pad using a vibration device. The motor is started, and the motor output drives the cam to rotate. Its eccentric structure pushes the linkage rod to reciprocate, driving the fixed end and the linkage plate to reciprocate synchronously. The linkage plate promotes regular vibration of the vibration plate, and the vibration is applied to the product through the connecting plate to complete the fastening or aging test of the parts. The vibration device solves the problem that the traditional vibration test box design, which often uses a vibration motor to directly drive the box body, is prone to large fluctuations in the vibration frequency of the box body due to the influence of the instantaneous output characteristics of the vibration motor.

[0025] In this invention, when the test box needs to be moved, the handle is gripped and a pulling force is applied to make the handle rotate synchronously to abut against the limiting block. The pulling force is transmitted through the limiting block to the threaded rod, and then to the lower box assembly. The force is then continuously applied to move the box and complete the transport. The lifting device solves the problem that traditional vibration test boxes have few external force points, which makes them inconvenient to move. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the vibration structure of this utility model;

[0028] Figure 3 This is a partial structural diagram of the three-dimensional structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the lifting structure of this utility model.

[0030] Legend: 1. Front panel assembly; 2. Top panel; 3. Inner silicone pad; 4. Vibration device; 401. Motor mounting plate; 402. Motor; 403. Cam; 404. Linkage rod; 405. Fixed end; 406. Linkage plate; 407. Silicone pad; 408. Guide rail fixing plate; 409. Linear slide rail; 410. Linear slide block; 411. Lifting plate; 412. Vibration plate; 413. Connecting plate; 5. Upper housing; 6. Lifting device; 61. Handle; 62. Connecting rod; 63. Limit block; 64. Threaded rod; 65. Washer ring; 66. Nut; 7. Lower housing assembly; 8. Sensor. Detailed Implementation

[0031] Reference Figure 1 and Figure 3 As shown, this utility model provides a technical solution: a vibration test box, including a front panel assembly 1, an upper panel 2, two inner silicone 3, an upper box body 5, a lower box body assembly 7 and two sensors 8. The lower box body assembly 7 is provided with a vibration device 4 inside and a lifting device 6 is provided outside the lower box body assembly 7.

[0032] The specific setup and function of the vibration device 4 and the lifting device 6 will be explained below.

[0033] Reference Figure 2 As shown in this embodiment: the vibration device 4 includes a motor mounting plate 401. Both sides of the motor mounting plate 401 are fixedly connected to the lower housing assembly 7. Two motors 402 are fixedly connected to the top of the motor mounting plate 401. A cam 403 is fixedly connected to the output end of each motor 402. A linkage rod 404 is fixedly connected to one end of the cam 403. A fixed end 405 is fixedly connected to one side of the linkage rod 404. A linkage plate 406 is fixedly connected to one side of the fixed end 405. A vibration plate 412 is fixedly connected to one side of the linkage plate 406. A connecting plate 413 is fixedly connected to the top of the vibration plate 412. When the motor 402 starts, its output shaft drives the cam 403 to rotate around its axis. As the cam 403 rotates, its eccentric structure continuously pushes the linkage rod 404 to reciprocate, thereby driving the fixed end 405 connected to the linkage rod 404 to perform continuous reciprocating motion synchronously. The reciprocating motion of the fixed end 405 is transmitted to the linkage plate 406, causing the linkage plate 406 to drive the vibration plate 412 to produce regular vibration. A silicone pad 407 is fixedly connected to the top of the connecting plate 413. This ensures that the silicone pad 407 is fixed to the connecting plate 413, increasing friction. Two lifting plates 411 are fixedly connected to the bottom of the linkage plate 406, and linear slide blocks 410 are fixedly connected to the sides of the two lifting plates 411 that are far apart from each other. This ensures that the movement of the linkage plate 406 drives the lifting plates 411 to adjust their positions, thereby moving the linear slide blocks 410. A linear slide rail 409 is slidably connected inside the linear slide block 410. This ensures that the linear slide block 410 moves along the linear slide rail 409. A guide rail fixing plate 408 is fixedly connected to one side of the linear slide rail 409, and one end of the four guide rail fixing plates 408 is fixedly connected to the motor mounting plate 401. This ensures that the guide rail fixing plates 408 are fixed to the motor mounting plate 401, thus stabilizing the position of the linear slide rail 409.

[0034] Reference Figure 4 As shown, in this embodiment: the lifting device 6 includes two handles 61, each with a U-shaped cross-section. Two connecting rods 62 are fixedly connected to the arc surface of each handle 61, achieving the effect of fixing the connecting rods 62 to the handles 61. A limiting block 63 is rotatably connected to the arc surface of each connecting rod 62, and a threaded rod 64 is fixedly connected to one end of the limiting block 63. This achieves the effect of fixing the threaded rod 64 to the limiting block 63, and allowing the connecting rod 62 to rotate on the limiting block 63. A washer 65 is slidably connected to the arc surface of the threaded rod 64, achieving the effect of matching the washer 65 and the threaded rod 64. A nut 66 is threadedly connected to the arc surface of the threaded rod 64, achieving the effect of matching the nut 66 and the threaded rod 64.

[0035] Working Principle: When vibration testing is required, the operator first places the product to be tested (such as a mobile phone or tablet) on the top of the connecting plate 413. The silicone pad 407 on the top of the connecting plate 413 increases the friction between the product and the connecting plate 413, preventing the product from sliding or shifting during subsequent vibration and ensuring the product remains stably in the test position. The equipment power is then turned on, and the two sensors 8 are adjusted to ensure they can accurately identify the position of the product under test and its state during vibration, providing a basis for parameter feedback and anomaly monitoring in subsequent vibration tests. The two motors 402 on the motor mounting plate 401 are then started. The output shaft of the motors 402 drives the cam 403 to rotate around its axis. Through its eccentric structure, the cam 403 continuously pushes the linkage rod 404 to reciprocate during rotation, thereby driving the fixed end 405 to perform continuous reciprocating motion synchronously. The reciprocating motion of the fixed end 405 is transmitted to the linkage plate 406, which synchronously drives the vibration plate 41. 2. Regular vibration is generated, and the vibration plate 412 then transmits the vibration energy to the connecting plate 413. Finally, the connecting plate 413 acts on the product under test to realize the fastening test or aging test of the parts. During the reciprocating motion of the linkage plate 406, the two lifting plates 411 move synchronously with the linkage plate 406. The lifting plate 411 drives the linear slide 410 to slide along the linear slide rail 409. Since the linear slide rail 409 is firmly connected to the motor mounting plate 401 through the guide rail fixing plate 408, the cooperation between the linear slide 410 and the linear slide rail 409 can limit the movement trajectory of the linkage plate 406, avoid the linkage plate 406 from deviating during vibration, and ensure the stability and regularity of vibration transmission. The picking and putting of the product are all manual operations. Through the vibration device 4, the problem of the traditional vibration test box design, which uses the vibration motor 402 to directly drive the box body, is easily caused by the vibration frequency of the box body being affected by the instantaneous output characteristics of the vibration motor 402, resulting in large fluctuations.

[0036] When the test box needs to be moved using the lifting device 6, the operator first holds the handle 61 and applies a continuous pulling force in the direction of movement. At this time, the connecting rod 62 on the handle 61 rotates on the limiting block 63 under the action of the pulling force, and the handle 61 rotates synchronously around the connecting rod 62 as the center of rotation. Continue to rotate the handle 61 until the handle 61 abuts against the limiting block 63. At this time, the continuously applied moving pulling force is transmitted to the threaded rod 64 through the limiting block 63. Since the threaded rod 64 passes through the mounting hole opened on the lower housing assembly 7 in advance, and the threaded rod 64 has been assembled with the washer 65 and nut 66 (to fix the position of the limiting block 63 and the lower housing assembly 7), the pulling force is stably transmitted to the lower housing assembly 7 through the threaded rod 64. By continuously applying the pulling force, the lower housing assembly 7 is moved as a whole, and the moving operation of the test box can be safely completed. The lifting device 6 solves the problem that traditional vibration test boxes have few external force points, which makes them inconvenient to move.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A vibration test chamber, comprising a front panel assembly (1), a top panel (2), two inner silicone pads (3), an upper chamber (5), a lower chamber assembly (7), and two sensors (8), characterized in that: The lower housing assembly (7) is equipped with a vibration device (4). The vibration device (4) includes a motor mounting plate (401). The two sides of the motor mounting plate (401) are fixedly connected to the lower housing assembly (7). Two motors (402) are fixedly connected to the top of the motor mounting plate (401). A cam (403) is fixedly connected to the output end of the motor (402). A linkage rod (404) is fixedly connected to one end of the cam (403). A fixed end (405) is fixedly connected to one side of the linkage rod (404). A linkage plate (406) is fixedly connected to one side of the fixed end (405). A vibration plate (412) is fixedly connected to one side of the linkage plate (406). A connecting plate (413) is fixedly connected to the top of the vibration plate (412).

2. The vibration testing chamber according to claim 1, characterized in that: A silicone pad (407) is fixedly connected to the top of the connecting plate (413).

3. The vibration testing chamber according to claim 1, characterized in that: The bottom end of the linkage plate (406) is fixedly connected to two lifting plates (411), and a linear slide (410) is fixedly connected to the side of the two lifting plates (411) that are far apart from each other.

4. A vibration testing chamber according to claim 3, characterized in that: The linear slide block (410) is internally slidably connected to a linear slide rail (409).

5. A vibration testing chamber according to claim 4, characterized in that: One side of the linear slide rail (409) is fixedly connected to a guide rail fixing plate (408), and one end of the four guide rail fixing plates (408) is fixedly connected to the motor mounting plate (401).

6. A vibration testing chamber according to claim 5, characterized in that: The lower housing assembly (7) is provided with a lifting device (6) on its exterior. The lifting device (6) includes two handles (61). The cross-section of the handles (61) is "U" shaped. Two connecting rods (62) are fixedly connected to the arc surface of the handles (61).

7. A vibration testing chamber according to claim 6, characterized in that: The arc surface of the connecting rod (62) is rotatably connected to a limiting block (63), and one end of the limiting block (63) is fixedly connected to a threaded rod (64).

8. A vibration testing chamber according to claim 7, characterized in that: The threaded rod (64) is slidably connected to a washer (65) on its arc surface.

9. A vibration testing chamber according to claim 8, characterized in that: The threaded rod (64) is threaded with a nut (66) on its arc surface.

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