Drop test apparatus and drop angle adjustment method

Abstract

The disclosure provides a falling test device and a falling angle adjusting method. The falling test device comprises a base, a holding mechanism and a falling angle adjusting mechanism. The holding mechanism comprises a carrier and a pressure plate arranged opposite to the carrier. A holding space for holding a test object is formed between the pressure plate and the carrier. The falling angle adjusting mechanism comprises an adjusting assembly, a detection assembly and a control unit. The adjusting assembly is connected with the pressure plate and is used for adjusting the position of the pressure plate. The detection assembly is connected with the pressure plate and is used for collecting the pressure value applied to the test object when the pressure plate is at different positions. The control unit is connected with the adjusting assembly and the detection assembly respectively, and is used for controlling the adjusting assembly to adjust the position of the pressure plate according to the pressure value, so that the test object freely falls to the base when the pressure value applied to the test object by the pressure plate is a specified value. The disclosure not only facilitates the test operation, but also avoids the inclination angle deviation problem and ensures the consistency of the measurement angle when the same scheme is measured multiple times.

Description

Technical Field

[0001] This disclosure relates to the field of drop testing technology, specifically to a drop testing device and a drop angle adjustment method. Background Technology

[0002] When dropping electronic products (such as laptops and tablets), the tilt angle of corner drops and edge drops is difficult to determine using fixtures and measuring tools. In practice, it is often determined manually by testers based on experience, resulting in randomness in the tilt angle. This leads to the following problems: 1. The tilt angle required by the standard is difficult to meet in a simple way and is entirely determined by the tester's technique; 2. When the same method is used for multiple measurements, it is impossible to guarantee the consistency of the angle measured each time. Summary of the Invention

[0003] In view of this, the present disclosure first provides a drop testing device to at least partially solve the above-mentioned technical problems.

[0004] The drop test apparatus according to this disclosure includes:

[0005] Base;

[0006] A holding mechanism includes a stage and a pressure plate disposed opposite to the stage, wherein a holding space for holding the object to be measured is formed between the pressure plate and the stage; and

[0007] The drop angle adjustment mechanism includes an adjustment component, a detection component, and a control unit;

[0008] The adjustment component is connected to the pressure plate and is used to adjust the position of the pressure plate; the detection component is connected to the pressure plate and is used to collect the pressure value applied to the object under test when the pressure plate is in different positions; the control unit is connected to the adjustment component and the detection component respectively, and is used to control the adjustment component to adjust the position of the pressure plate according to the pressure value, so that when the pressure applied by the pressure plate to the object under test is a specified value, the object under test falls freely to the base.

[0009] Alternatively, the adjustment component includes:

[0010] A first drive component is used to adjust the position of the pressure plate in a first direction;

[0011] The second drive component is used to adjust the position of the pressure plate in the second direction; and

[0012] The third drive component is used to adjust the pressure plate in the third-party upward position;

[0013] Wherein, the first direction, the second direction, and the third direction correspond to the X-axis direction, Y-axis direction, and Z-axis direction in a spatial rectangular coordinate system, respectively.

[0014] Alternatively, the third drive assembly includes a mounting base and a third drive member. A column is provided on the base, and an adjustment seat is slidably provided on the column. The adjustment seat can be raised and lowered relative to the base along the column. The mounting base is connected to the third drive member so as to be raised and lowered relative to the adjustment seat.

[0015] Alternatively, the second drive assembly includes a movable base and a second drive member, the second drive member being disposed on the mounting base for driving the movable base to move relative to the mounting base along the second direction.

[0016] Alternatively, the first drive assembly includes a first drive member disposed on the movable base for driving the pressure plate to move relative to the movable base along the first direction.

[0017] Alternatively, the detection component includes a first pressure sensor, a second pressure sensor, and a third pressure sensor, all of which are disposed at the bottom of the pressure plate and contact the upper corner of the object to be tested during a drop test.

[0018] Alternatively, the adjustment seat has a first mounting surface and a second mounting surface opposite to each other, the first mounting surface being closer to the base than the second mounting surface, the platform being disposed on the first mounting surface, and the mounting seat body being disposed on the second mounting surface.

[0019] Alternatively, the stage has a bearing surface, and the bearing surface is provided with a receiving groove for accommodating the lower corner of the object to be tested.

[0020] According to another aspect of this disclosure, a drop angle adjustment method is also provided, applied to the drop testing device described above, the method comprising the following steps:

[0021] The pressure value applied to the object under test when the pressure plate is in its current position is collected; and

[0022] Based on the pressure value, the control adjustment component adjusts the position of the pressure plate so that when the pressure plate applies a specified pressure value to the object under test, the object under test falls freely to the base.

[0023] Optionally, the step of adjusting the position of the pressure plate by controlling the adjustment component includes:

[0024] The position of the pressure plate in the first direction is adjusted by the first drive component so that the pressure applied by the pressure plate to the object under test in the first direction is a first specified value.

[0025] The position of the pressure plate in the second direction is adjusted by the second drive component so that the pressure applied by the pressure plate to the object under test in the second direction is a second specified value; and

[0026] The pressure plate is adjusted in a third-direction upward position by a third drive component so that the third-direction pressure applied by the pressure plate to the object under test is a third specified value.

[0027] In this disclosure, based on a drop angle adjustment mechanism including an adjustment component, a detection component, and a control unit, the object to be tested can be automatically adjusted to a specified angle and then allowed to fall freely during a drop test. This not only facilitates the testing operation but also avoids the tilt angle deviation caused by the tester's technique, ensuring the consistency of the measurement angle when the same method is used for multiple measurements.

[0028] The advantages and features of this disclosure are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0029] The following drawings are incorporated herein as part of this disclosure for understanding its principles. The drawings illustrate embodiments of the present disclosure and their descriptions, serving to explain the principles of the disclosure. In the drawings,

[0030] Figure 1 This is a schematic diagram of the structure of a drop test apparatus according to an exemplary embodiment of the present disclosure;

[0031] Figure 2 for Figure 1 A structural block diagram of a drop angle adjustment mechanism in an exemplary embodiment;

[0032] Figure 3 This is a flowchart of a drop angle adjustment method according to an exemplary embodiment of the present disclosure;

[0033] Figure 4 According to Figure 3 A schematic diagram of step S20 in the drop angle adjustment method shown;

[0034] Figure 5 This is a detailed flowchart of a drop angle adjustment method according to an exemplary embodiment of the present disclosure.

[0035] Explanation of the labels in the diagram:

[0036] 1. Base; 2. Holding mechanism; 21. Platform; 211. Bearing surface; 2111. Receiving groove; 22. Pressure plate; 3. Drop angle adjustment mechanism; 31. Adjustment component; 3110. First drive component; 3120. Second drive component; 312. Moving seat; 3130. Third drive component; 313. Mounting seat; 314. Adjustment seat; 3141. First mounting surface; 3142. Second mounting surface; 32. Detection component; 321. First pressure sensor; 322. Second pressure sensor; 323. Third pressure sensor; 33. Control unit; 4. Column; 5. Guide column. Detailed Implementation

[0037] In the following description, numerous details are provided to enable a thorough understanding of this disclosure. However, those skilled in the art will appreciate that the following description merely illustrates alternative embodiments of this disclosure by way of example, and that this disclosure can be implemented without one or more of these details. Furthermore, to avoid confusion with this disclosure, some technical features well-known in the art have not been described in detail.

[0038] The drop testing apparatus disclosed herein can be applied to corner drop tests and edge drop tests of electronic products to detect the product's resistance to accidental impacts. In one embodiment of this disclosure, the drop testing apparatus is used to test a notebook computer, but this is not a limitation. In other embodiments, the drop testing apparatus can also be used to test other portable computers (e.g., tablet computers); or, the drop testing apparatus can also be used to test mobile phones, and this embodiment is not limited.

[0039] like Figures 1 to 2 As shown, a drop testing apparatus according to an embodiment of this disclosure includes a base 1, a holding mechanism 2, and a drop angle adjustment mechanism 3. The base 1 provides a rigid drop surface. The holding mechanism 2 includes a platform 21 and a pressure plate 22 disposed opposite to the platform 21. A holding space is formed between the pressure plate 22 and the platform 21 to hold the object under test. During a drop test, the object under test falls freely from the holding space onto the base 1. The drop angle adjustment mechanism 3 includes an adjustment component 31, a detection component 32, and a control unit 33. The adjustment component 31 is connected to the pressure plate 22 and is used to adjust the position of the pressure plate 22. The detection component 32 is connected to the pressure plate 22 and is used to collect the pressure values ​​applied to the object under test when the pressure plate 22 is in different positions. The control unit 33 is connected to the adjustment component 31 and the detection component 32 respectively, and is used to control the adjustment component 31 to adjust the position of the pressure plate 22 according to the pressure values, so that when the pressure applied by the pressure plate 22 to the object under test is a specified value, the object under test falls freely onto the base 1.

[0040] The drop test device described above, based on the drop angle adjustment mechanism 3 including the adjustment component 31, the detection component 32 and the control unit 33, can automatically adjust the object to be tested to a specified angle and let it fall freely during the drop test. This not only facilitates the test operation, but also avoids the tilt angle deviation caused by the tester's technique, and ensures the consistency of the measurement angle when the same scheme is measured multiple times.

[0041] See again Figure 1 and Figure 2 The adjustment component 31 includes a first drive component 3110, a second drive component 3120, and a third drive component 3130. The first drive component 3110 is used to adjust the position of the pressure plate 22 in a first direction; the second drive component 3120 is used to adjust the position of the pressure plate 22 in a second direction; and the third drive component 3130 is used to adjust the position of the pressure plate 22 in a third direction. Here, the first direction, the second direction, and the third direction correspond to the X-axis direction, the Y-axis direction, and the Z-axis direction in a Cartesian coordinate system, respectively. In the case of a drop test, when the object to be tested is placed on the platform 21, the lower corner of the object is typically placed on the platform 21, while the upper corner contacts the pressure plate 22. When the first drive assembly 3110 drives the pressure plate 22, it causes the pressure plate 22 to move the object to be tested, rotating it around the lower corner of the object in the XZ plane. When the second drive assembly 3120 drives the pressure plate 22, it causes the pressure plate 22 to move the object to be tested, rotating it around the lower corner of the object in the YZ plane. When the third drive assembly 3130 drives the pressure plate 22, it causes the pressure plate 22 to rise and fall relative to the platform 21, adjusting the magnitude of the vertical downward pressure applied by the pressure plate 22 to the object to be tested. Thus, based on the configuration of the first drive assembly 3110, the second drive assembly 3120, and the third drive assembly 3130, the pressure plate 22 can be adjusted in the X, Y, and Z directions.

[0042] This disclosure discloses a drop testing device according to one embodiment. The third drive assembly 3130 includes a mounting base 313 and a third drive component (not shown in the figure; here, the third drive component can be a common servo motor). A column 4 is provided on the base 1, and an adjusting seat 314 is slidably mounted on the column 4. The adjusting seat 314 can rise and fall relative to the base 1 along the column 4. The mounting base 313 is connected to the third drive component so that it can rise and fall relative to the adjusting seat 314. Thus, the drop height can be adjusted by adjusting the distance between the adjusting seat 314 and the base 1. When the third drive component is activated, it can drive the mounting base 313 to rise and fall relative to the adjusting seat 314, realizing the adjustment of the pressure plate 22 in the Z-axis direction, and guiding the adjusting seat 314 in the Z-axis direction through the column 4. Here, the adjusting seat 314 can also be connected to a drive component, which drives the adjusting seat 314 to rise and fall relative to the base 1 along the column 4. Here, the movement of the mounting base 313 can also be guided by a guide post 5.

[0043] Furthermore, the second drive assembly 3120 may include a movable base 312 and a second drive member (not shown in the figure). The second drive member is disposed on the mounting base 313 and is used to drive the movable base 312 to move relative to the mounting base 313 along a second direction. Thus, when the second drive member is activated, it can drive the movable base 312 to move relative to the mounting base along the second direction, realizing the adjustment of the pressure plate 22 in the Y direction. Here, the second drive member can be a common servo motor.

[0044] Furthermore, the first drive assembly 3110 includes a first drive member (not shown in the figure), which is mounted on the movable base 312 and is used to drive the pressure plate 22 to move relative to the movable base 312 along a first direction. Thus, when the first drive member is activated, it can drive the pressure plate 22 to move relative to the movable base 312 along the first direction, achieving adjustment of the pressure plate 22 in the X-axis. Here, the first drive member can be a common servo motor.

[0045] This disclosure discloses a drop testing apparatus according to an embodiment. The detection component 32 includes a first pressure sensor 321, a second pressure sensor 322, and a third pressure sensor 323. All three sensors are disposed at the bottom of the pressure plate 22 and contact the upper corner of the object under test during the drop test. Based on the arrangement of the first pressure sensor 321, the second pressure sensor 322, and the third pressure sensor 323, the pressure values ​​applied by the pressure plate 22 to the object under test in the X, Y, and Z directions can be collected. These pressure values ​​are then fed back to the control unit 33, which issues corresponding control commands to the first drive component, the second drive component, and the third drive component.

[0046] Here, the positions of the first pressure sensor 321, the second pressure sensor 322, and the third pressure sensor 323 are not limited to being located at the bottom of the pressure plate 22. The positions of each pressure sensor can be adjusted according to actual needs. For example, the second pressure sensor 322 can be located on the movable base 312, and the third pressure sensor 323 can be located on the mounting base 313.

[0047] In one embodiment of the drop test apparatus disclosed herein, the adjusting base 314 has a first mounting surface 3141 and a second mounting surface 3142 facing each other. The first mounting surface 3141 is positioned closer to the base 1 than the second mounting surface 3142. The platform 21 is disposed on the first mounting surface 3141, and the mounting body 313 is disposed on the second mounting surface 3142. That is, the pressure plate 22 and the platform 21 are respectively located on two opposing surfaces of the adjusting base 314. Here, the mounting body 313 is not fixed to the second mounting surface 3142, but is able to rise and fall relative to the second mounting surface 3142 based on the third driving member and the guide column 5. This not only facilitates the formation of a holding space but also allows for adjustment of the magnitude of the vertical downward pressure applied by the pressure plate 22 to the object under test.

[0048] See again Figure 1 According to one embodiment of the drop testing apparatus disclosed herein, the stage 21 has a bearing surface 211, and the bearing surface 211 is provided with a receiving groove 2111 for accommodating the lower corner of the object to be tested. The receiving groove 2111 is designed to better hold the object to be tested within the holding space. Here, the receiving groove 2111 may be arranged along a first direction or along a second direction; alternatively, the receiving groove 2111 may include multiple first receiving grooves arranged along the first direction and multiple second receiving grooves arranged along the second direction.

[0049] According to another aspect of this disclosure, a drop angle adjustment method is also provided, applied to the drop testing apparatus described above, such as... Figure 3 As shown, the method includes the following steps:

[0050] S10, Collect the pressure value applied to the object under test when the pressure plate 22 is in its current position; and

[0051] S20, according to the pressure value, the control adjustment component 31 adjusts the position of the pressure plate 22 so that when the pressure applied by the pressure plate 22 to the object to be tested is a specified value, the object to be tested falls freely to the base 1.

[0052] like Figure 4 As shown, the step of adjusting the position of the pressure plate 22 by the control and adjustment component 31 includes:

[0053] S21, the position of the pressure plate 22 in the first direction is adjusted by the first drive component 3110 so that the pressure applied by the pressure plate 22 to the object to be tested in the first direction is a first specified value;

[0054] S22, the position of the pressure plate 22 in the second direction is adjusted by the second drive assembly 3120 so that the pressure applied by the pressure plate 22 to the object under test in the second direction is a second specified value; and

[0055] S23, the pressure plate 22 is adjusted in the third direction by the third drive component 3130 so that the third direction pressure applied by the pressure plate 22 to the object to be tested is a third specified value.

[0056] like Figure 5 As shown, in one embodiment of the drop testing device of this disclosure, when performing a drop test, the object to be tested is first placed in the holding space, and the pressure plate 22 fixes the object to be tested. The pressure plate 22 is adjusted by the third driving member to make the third-direction pressure value greater than 0. At this time, it is determined whether the first-direction pressure value detected by the first pressure sensor 321 is a first specified value (the first specified value is usually set to 0). If it is not the first specified value, the control unit 33 controls the first driving member to drive the pressure plate to move in the first direction until the first-direction pressure value detected by the first pressure sensor 321 is the first specified value, thereby completing the X-axis positioning of the object to be tested. At the same time, it is determined whether the second-direction pressure value detected by the second pressure sensor 322 is a second specified value. If the pressure value is not the second specified value (which is usually set to 0), the control unit 33 controls the second drive to move the pressure plate in the second direction until the pressure value in the second direction detected by the second pressure sensor 322 is the second specified value, thereby completing the Y-axis positioning of the object under test. Then, the control unit 33 controls the third drive to move the pressure plate in the third direction until the pressure value in the third direction detected by the third pressure sensor 323 is the third specified value (which is usually set to 0), thereby completing the positioning of the object under test. After the positioning of the object under test is completed, the object under test can be allowed to fall freely for a drop test.

[0057] Here, during the process of the control unit 33 controlling the first driving member to move the pressure plate in the first direction, it can determine the relationship between the pressure value in the first direction detected by the first pressure sensor 321 and the first specified value. For example, if the pressure value in the first direction detected by the first pressure sensor 321 is less than the first specified value, the control unit 33 controls the first driving member to move the pressure plate upward in the first direction; if the pressure value in the first direction detected by the first pressure sensor 321 is greater than the first specified value, the control unit 33 controls the first driving member to move the pressure plate upward in the opposite direction in the first direction.

[0058] Here, during the process of the control unit 33 controlling the second driving member to move the pressure plate in the second direction, it can determine the relationship between the pressure value in the second direction detected by the second pressure sensor 322 and the second specified value. For example, if the pressure value in the second direction detected by the second pressure sensor 322 is less than the second specified value, the control unit 33 controls the second driving member to move the pressure plate upward in the second direction; if the pressure value in the second direction detected by the second pressure sensor 322 is greater than the second specified value, the control unit 33 controls the second driving member to move the pressure plate upward in the opposite direction in the second direction.

[0059] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0060] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," and "above" are used herein to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatial relative terms include not only the orientation of the component as depicted in the figures but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0062] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in sequences other than those illustrated or described herein.

[0063] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this disclosure can be achieved, and this disclosure does not impose any restrictions here.

[0064] This disclosure has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments. Furthermore, those skilled in the art will understand that this disclosure is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed by this disclosure. The scope of protection of this disclosure is defined by the appended claims and their equivalents.

Claims

1. A drop test device, characterized in that, include: Base (1); The holding mechanism (2) includes a stage (21) and a pressure plate (22) disposed opposite to the stage (21), wherein a holding space for holding the object to be measured is formed between the pressure plate (22) and the stage (21); and The drop angle adjustment mechanism (3) includes an adjustment component (31), a detection component (32), and a control unit (33). The adjustment component (31) is connected to the pressure plate (22) and is used to adjust the position of the pressure plate (22); the detection component (32) is connected to the pressure plate (22) and is used to collect the pressure value applied to the object to be tested when the pressure plate (22) is in different positions; the control unit (33) is connected to the adjustment component (31) and the detection component (32) respectively, and is used to control the adjustment component (31) to adjust the position of the pressure plate (22) according to the pressure value, so that when the pressure applied by the pressure plate (22) to the object to be tested is a specified value, the object to be tested falls freely to the base (1), and the specified value is usually set to 0; The adjustment component (31) includes: a first drive component (3110) for adjusting the position of the pressure plate (22) in a first direction; a second drive component (3120) for adjusting the position of the pressure plate (22) in a second direction; and a third drive component (3130) for adjusting the position of the pressure plate (22) in a third direction; wherein the first direction, the second direction and the third direction correspond to the X-axis direction, Y-axis direction and Z-axis direction in a spatial rectangular coordinate system, respectively.

2. The drop test device according to claim 1, characterized in that, The third drive assembly (3130) includes a mounting base (313) and a third drive member. A column (4) is provided on the base (1), and an adjustment seat (314) is slidably provided on the column (4). The adjustment seat (314) can be raised and lowered relative to the base (1) along the column (4). The mounting base (313) is connected to the third drive member so that it can be raised and lowered relative to the adjustment seat (314).

3. The drop test device according to claim 2, characterized in that, The second drive assembly (3120) includes a movable base (312) and a second drive member, which is disposed on the mounting base (313) and is used to drive the movable base (312) to move relative to the mounting base (313) in the second direction.

4. The drop test device according to claim 3, characterized in that, The first drive assembly (3110) includes a first drive member disposed on the movable base (312) for driving the pressure plate (22) to move relative to the movable base (312) along the first direction.

5. The drop test apparatus according to claim 4, characterized in that, The detection component (32) includes a first pressure sensor (321), a second pressure sensor (322) and a third pressure sensor (323). The first pressure sensor (321), the second pressure sensor (322) and the third pressure sensor (323) are all located at the bottom of the pressure plate (22) and contact the upper corner of the object to be tested during the drop test.

6. The drop test apparatus according to claim 2, characterized in that, The adjustment seat (314) has a first mounting surface (3141) and a second mounting surface (3142) opposite to each other. The first mounting surface (3141) is closer to the base (1) than the second mounting surface (3142). The platform (21) is disposed on the first mounting surface (3141) and the mounting body (313) is disposed on the second mounting surface (3142).

7. The drop test apparatus according to claim 1, characterized in that, The stage (21) has a bearing surface (211), and the bearing surface (211) is provided with a receiving groove (2111) for accommodating the lower corner of the object to be tested.

8. A method for adjusting the drop angle, characterized in that, Applied to the drop testing apparatus as described in any one of claims 1 to 7, the method comprises the following steps: The pressure value applied to the object under test when the pressure plate (22) is in its current position; and According to the pressure value, the control adjustment component (31) adjusts the position of the pressure plate (22) so that when the pressure applied by the pressure plate (22) to the object to be tested is a specified value, the object to be tested falls freely to the base (1).

9. The drop angle adjustment method according to claim 8, characterized in that, The step of adjusting the position of the pressure plate (22) by the control and adjustment component (31) includes: The position of the pressure plate (22) in the first direction is adjusted by the first drive component (3110) so that the pressure applied by the pressure plate (22) to the object to be tested in the first direction is a first specified value; The position of the pressure plate (22) in the second direction is adjusted by the second drive assembly (3120) so that the pressure applied by the pressure plate (22) to the object under test in the second direction is a second specified value; and The pressure plate (22) is adjusted in a third-direction upward position by the third drive component (3130) so that the third-direction pressure applied by the pressure plate (22) to the object under test is a third specified value.

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