Pressure sensing test equipment

Abstract

The utility model relates to pressure sensing test equipment, which comprises a test fixture used for placing a product to be detected, a test structure is arranged on the upper side of the test fixture, the test structure comprises a test plate moving up and down, the test plate is provided with a vertical hole, a test block is placed at the position of the vertical hole, and the test block is provided with a pressure sensor. The upper side of the test block is provided with a containing groove used for containing weights, the weights of different weights can be not placed or placed in the containing groove of the test block according to different pressure sensing test requirements, so that the test blocks of different weights are obtained, different pressure senses are tested, the overall structure is simple, different test requirements can be rapidly adjusted, and the test efficiency is improved. Therefore, the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of electronic product testing, in particular to a pressure sensing testing device. Background Art

[0002] Pressure buttons are generally provided in electronic products such as headphones to switch and adjust corresponding functions. At this time, the pressure buttons mainly obtain external pressing signals through built-in pressure sensors or capacitance-to-touch sensors. At this time, the sensitivity of the pressure buttons is directly related to the performance and experience of the product during use. Therefore, after the product is produced, relevant sensitivity tests need to be performed on the pressure buttons.

[0003] In the prior art, pressure sensing testing is generally performed by controlling the pressure block to move up and down through a driving mechanism. However, in this process, the pressure acting on the product cannot be adjusted, or the pressure adjustment process is very complicated, which affects the test process and test efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a pressure sensing testing device to address the problems in the prior art.

[0005] A pressure sensing testing device, characterized in that it includes a test fixture for placing a product to be tested, a test structure is provided on the upper side of the test fixture, the test structure includes a test plate that moves up and down, the test plate is provided with a vertical hole, a test block is placed at the position of the vertical hole, and a receiving groove for placing a weight is provided on the upper side of the test block.

[0006] In one embodiment, an annular gasket is provided on the inner wall of the vertical hole, a lower column portion adapted to the annular gasket is provided on the lower side of the test block, a step portion having a diameter larger than that of the annular gasket is provided on the upper side of the test block, and the test block is limited to the upper side of the annular gasket by the step portion.

[0007] In one of the embodiments, the accommodating groove is an annular groove arranged on the upper side of the test block, the bottom of the annular groove is a plane, and the annular groove is coaxially arranged with the central axis of the lower column portion and the step portion.

[0008] In one of the embodiments, a silicone test head is provided at the bottom of the test block.

[0009] In one of the embodiments, there are two vertical holes on the test plate, and the axes of the two vertical holes are arranged in parallel.

[0010] In one embodiment, the test structure also includes a vertical drive mechanism, which includes a vertical fixed plate, a motor is provided on the side of the vertical fixed plate, the shaft of the motor is connected to a screw, the screw is provided with a slider that moves along the direction of the screw, the test plate is fixed to the outer side of the slider through a connecting plate, and the test plate is controlled to move up and down by the motor.

[0011] In one of the embodiments, the test fixture is fixed on the upper side of the base plate, and a horizontal driving mechanism is provided on the lower side of the base plate for controlling the horizontal movement of the base plate, thereby controlling the position of the test fixture on the base plate to move to different positions below the vertical holes.

[0012] In one of the embodiments, a fixed plate is provided on the lower side of the base plate, and the horizontal driving mechanism includes a positioning cylinder fixed to the fixed plate, and a guide rail slider structure arranged between the base plate and the fixed plate, and the piston rod of the positioning cylinder is fixed to the base plate, thereby controlling the base plate to slide on the upper side of the fixed plate along the guide rail slider structure.

[0013] In one of the embodiments, a conduction plate is provided on the upper side of the bottom plate, and the conduction plate is provided with terminals for conducting the product to be detected. A connection cylinder for driving the conduction plate to move is also provided on the upper side of the bottom plate.

[0014] In one embodiment, the test fixture includes a test slot for accommodating the product to be tested, the test slot is provided with a through hole corresponding to the terminal, and the side of the test fixture is provided with a limiting groove corresponding to the conductive plate, and when the conductive plate moves to the position of the limiting groove, the terminal of the conductive plate is inserted into the through hole of the test fixture.

[0015] The above-mentioned pressure sensing test equipment can place no weights or weights of different weights in the receiving groove of the test block to meet different pressure sensing test requirements, thereby obtaining test blocks of different weights and then testing different pressure senses. The overall structure is simple and different test requirements can be quickly adjusted, thereby improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the pressure sensing test equipment of the utility model;

[0017] Figure 2 This is a partial structural diagram of the pressure sensing test equipment of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional view of the test structure of the pressure sensing test equipment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the test fixture for the pressure sensing test equipment of the utility model;

[0020] Among them, 1. test fixture; 11. test slot; 12. through hole; 13. limit groove; 2. test structure; 21. test board; 211. vertical hole; 22. test block; 220. accommodating groove; 221. lower column; 222. step portion; 23. annular gasket; 24. silicone test head; 3. vertical drive mechanism; 4. bottom plate; 5. horizontal drive mechanism; 6. conduction plate; 61. terminal; 62. connect cylinder. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] like Figures 1 to 4 The pressure sensing testing device is characterized in that it includes a test fixture 1 for placing a product to be tested, a test structure 2 is provided on the upper side of the test fixture 1, and the test structure 2 includes a test plate 21 that moves up and down, and the test plate 21 is provided with a vertical hole 211. A test block 22 is placed at the position of the vertical hole 211, and a receiving groove 220 for placing a weight is provided on the upper side of the test block 22.

[0025] When meeting different pressure sensitivity test requirements, weights of different weights may be placed in the receiving groove 220 of the test block 22 without or with weights of different weights, thereby obtaining test blocks 22 of different weights and then testing different pressure sensitivities. The overall structure is simple and different test requirements can be adjusted quickly, thereby improving test efficiency.

[0026] At this time, in order to ensure that the test block 22 does not fall down at the test hole position of the test plate 21, Figure 3 As shown, in this embodiment, an annular gasket 23 is provided on the inner wall of the vertical hole 211, a lower column 221 adapted to the annular gasket 23 is provided on the lower side of the test block 22, and a step portion 222 having a diameter larger than the annular gasket 23 is provided on the upper side of the test block 22, and the test block 22 is limited on the upper side of the annular gasket 23 by the step portion 222. At this time, the annular gasket 23 can be made of nylon, which has good wear resistance and will not be scratched by the test block 22, thereby ensuring that the weight of the test block 22 can be kept consistent during use. The step portion 222 is provided on the test block 22, so that the test block 22 can be stuck in the upper position of the vertical hole 211 through the step portion 222. At the same time, the outer diameter of the lower column 221 is slightly smaller than the inner diameter of the annular gasket 23, which can ensure that when the test block 22 abuts against the product to be tested at the lower side, the test block 22 and the test board 21 can be separated smoothly, and the test block 22 is not easy to deflect, thereby ensuring the accuracy of the test process.

[0027] After the weight is placed in the receiving groove 220, the weight will move together with the test block 22. In order to improve the test accuracy, in this embodiment, the receiving groove 220 is an annular groove arranged on the upper side of the test block 22, the bottom of the annular groove is a plane, and the annular groove is coaxially arranged with the central axis of the lower column 221 and the step portion 222. In this way, the weight placed in the receiving groove 220 is coaxially arranged with the center of the entire test block 22, so that after adding the weight, it can be ensured that the center of gravity position of the test block 22 does not change, thereby ensuring the accuracy during the test process.

[0028] Meanwhile, in order to avoid damage to the product to be tested during the test process, in this embodiment, a silicone test head 24 is provided at the bottom of the test block 22 .

[0029] During the test, in order to detect different pressure conditions, different weight test blocks 22 are required for testing the same product in one test process. Therefore, in this embodiment, two vertical holes 211 are provided on the test plate 21, and the axes of the two vertical holes 211 are arranged in parallel. Two vertical holes 211 are provided, and then two test blocks 22 are provided. In this way, by adding weights of no weight to the two test blocks 22, two weight tests can be performed in one test process.

[0030] For the up and down movement of the test board 21, in this embodiment, the test structure 2 also includes a vertical drive mechanism 3, which includes a vertical fixed plate, a motor is provided on the side of the vertical fixed plate, a screw is connected to the shaft of the motor, and the screw is provided with a slider moving along the screw direction. The test board 21 is fixed to the outside of the slider through a connecting plate, and the test board 21 is controlled to move up and down by the motor. The screw is arranged vertically, so that the screw can be controlled by the motor to control the up and down movement of the test board 21. During the downward movement of the test board 21, the test block 22 moves downward together before contacting the product to be tested, until the test block 22 contacts the product, and the test board 21 continues to move downward. The weight of the test block 22 is fully supported by the product, so that the pressure sensing test process corresponding to the weight of the test block 22 can be completed. After the test is completed, the test board 21 moves upward, and after contacting the test block 22, it drives the test block 22 to move upward together, thereby completing the entire test process.

[0031] At this time, since two vertical holes 211 and test blocks 22 (test blocks 22 and weights) of different weights are provided, it is necessary to adjust the contact between different test blocks 22 and the product to be tested. In this embodiment, the test fixture 1 is fixed on the upper side of the bottom plate 4, and a horizontal driving mechanism 5 is provided on the lower side of the bottom plate 4 to control the horizontal movement of the bottom plate 4, thereby controlling the test fixture 1 at the position of the bottom plate 4 to move to the lower side of different vertical holes 211. Under the action of the horizontal driving mechanism 5, the bottom plate 4 moves horizontally, so that the test fixture 1 moves to the lower side of different vertical holes 211, and then the test blocks 22 of different weights test the product to be tested at the position of the test fixture 1.

[0032] For the horizontal driving mechanism 5, the main function of the test fixture 1 is to control the position of the base plate 4 to move between the two vertical holes 211. Therefore, in this embodiment, a fixed plate is provided on the lower side of the base plate 4, and the horizontal driving mechanism 5 includes a position cylinder fixed to the fixed plate, and a guide rail slider structure provided between the base plate 4 and the fixed plate. The piston rod of the position cylinder is fixed to the base plate 4, thereby controlling the base plate 4 to slide on the upper side of the fixed plate along the guide rail slider structure.

[0033] During the test, the test product needs to be powered on to determine the pressing efficiency under different weights, such as Figure 2 and Figure 4 As shown, in this embodiment, a conducting plate 6 is provided on the upper side of the base plate 4, and the conducting plate 6 is provided with a terminal 61 for conducting the product to be detected. A connecting cylinder 62 for driving the conducting plate 6 to move is also provided on the upper side of the base plate 4. Under the action of the connecting cylinder 62, the conducting plate 6 moves, so that the terminal 61 contacts the product to be detected, thereby connecting the product to be detected and completing the power-on of the product to be detected.

[0034] Finally, when the conducting plate 6 is moved, in order to ensure that the terminal 61 at the position of the conducting plate 6 can be connected to the product to be tested, as shown in FIG. Figure 4 As shown, in this embodiment, the test fixture 1 includes a test slot 11 for accommodating the product to be tested, the test slot 11 is provided with a through hole 12 corresponding to the terminal 61, and the side of the test fixture 1 is provided with a limiting groove 13 corresponding to the conductive plate 6. When the conductive plate 6 moves to the position of the limiting groove 13, the terminal 61 of the conductive plate 6 is inserted into the through hole 12 of the test fixture 1. Under the action of the connecting cylinder 62, the conductive plate 6 moves to the position of the limiting groove 13. At this time, the limiting groove 13 is used to position the conductive plate 6, so as to ensure that the relative position of the terminal 61 of the conductive plate 6 and the test fixture 1 is determined, and then the terminal 61 is inserted into the position of the test slot 11 through the through hole 12 of the test fixture 1, so as to contact the product to be tested at the position of the test slot 11, and connect the product to be tested.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pressure sensing test device, characterized in that: It comprises a test fixture for placing the product to be tested, wherein a test structure is arranged on the upper side of the test fixture, wherein the test structure comprises a test plate which moves up and down, wherein the test plate is provided with a vertical hole, wherein a test block is placed at the position of the vertical hole, and wherein a receiving groove for placing a weight is arranged on the upper side of the test block.

2. The pressure sensing test device according to claim 1, characterized in that: An annular gasket is provided on the inner wall of the vertical hole, a lower column portion adapted to the annular gasket is provided on the lower side of the test block, a step portion with a diameter larger than the annular gasket is provided on the upper side of the test block, and the test block is limited on the upper side of the annular gasket by the step portion.

3. The pressure sensing test device according to claim 2, characterized in that: The accommodating groove is an annular groove arranged on the upper side of the test block, the bottom of the annular groove is a plane, and the annular groove is coaxially arranged with the central axis of the lower column part and the step part.

4. The pressure sensing test device according to claim 3, characterized in that: A silica gel test head is arranged at the bottom of the test block.

5. The pressure sensing testing device according to any one of claims 1 to 4, characterized in that: The test plate is provided with two vertical holes, and the axes of the two vertical holes are arranged in parallel.

6. The pressure sensing test device according to claim 5, characterized in that: The test structure also includes a vertical drive mechanism, which includes a vertical fixed plate. A motor is provided on the side of the vertical fixed plate. The shaft of the motor is connected to a screw rod. The screw rod is provided with a slider that moves along the direction of the screw rod. The test plate is fixed to the outside of the slider through a connecting plate, and the test plate is controlled to move up and down by the motor.

7. The pressure sensing test device according to claim 6, characterized in that: The test fixture is fixed on the upper side of the base plate, and a horizontal driving mechanism is provided on the lower side of the base plate for controlling the horizontal movement of the base plate, thereby controlling the test fixture at the position of the base plate to move to different positions below the vertical holes.

8. The pressure sensing test device according to claim 7, characterized in that: A fixed plate is provided on the lower side of the base plate, and the horizontal driving mechanism includes a position cylinder fixed to the fixed plate, and a guide rail slider structure arranged between the base plate and the fixed plate. The piston rod of the position cylinder is fixed to the base plate, thereby controlling the base plate to slide on the upper side of the fixed plate along the guide rail slider structure.

9. The pressure sensing test device according to claim 8, characterized in that: A conduction plate is disposed on the upper side of the bottom plate. The conduction plate is provided with terminals for conducting the product to be detected. A connection cylinder is also disposed on the upper side of the bottom plate for driving the conduction plate to move.

10. The pressure sensing testing device according to claim 9, characterized in that: The test fixture comprises a test slot for accommodating a product to be tested, the test slot is provided with a through hole corresponding to a terminal, a side of the test fixture is provided with a limiting groove corresponding to a conductive plate, and when the conductive plate moves to the position of the limiting groove, the terminal of the conductive plate is inserted into the through hole of the test fixture.

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