A pressure testing device and a pressure testing method

Abstract

This application discloses a pressure testing device and a pressure testing method, belonging to the technical field of electronic product manufacturing. The pressure testing device includes: a product fixing component for placing a target product; a pressing component fixed to a base plate and equipped with a pressure sensor; wherein the pressure sensor is used to detect the pressure value applied by the pressing component to the target product; a driving component connected to the product fixing component; and a control unit connected to the driving component; wherein the control unit is used to control the driving component to drive the product fixing component to move towards the pressing component multiple times, with each movement feeding a preset feed amount, so that the pressing component presses the target product. This application can improve the accuracy of pressure testing.

Description

Technical Field

[0001] This application relates to the field of electronic product manufacturing, and in particular to a pressure testing device and a pressure testing method. Background Technology

[0002] With the development of technology, electronic products such as smartwatches, tablets, Bluetooth headsets, and smartphones have gradually entered people's lives. In order to ensure the quality of electronic products, it is usually necessary to conduct pressure tests on the buttons, touch screens, and other pressing control components of electronic products before they leave the factory.

[0003] Currently, conventional pressure testing requires the use of a cylinder to drive a pressure sensor to press the part to be tested. However, during the conventional pressure testing process, the pressure sensor is in motion, which will cause the pressure sensor reading to drift, resulting in low accuracy of the pressure test.

[0004] Therefore, how to improve the accuracy of pressure testing is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a pressure testing device and a pressure testing method that can improve the accuracy of pressure testing.

[0006] To address the aforementioned technical problems, this application provides a pressure testing device, which includes:

[0007] Product fixing components used to hold the target product;

[0008] A pressing component fixed to a base plate and equipped with a pressure sensor; wherein the pressure sensor is used to detect the pressure value applied by the pressing component to the target product;

[0009] Drive components connected to the product fixing components;

[0010] A control unit connected to the driving component; wherein the control unit is used to control the driving component to drive the product fixing component to move towards the pressing component multiple times, with each movement feeding a preset feed amount, so that the pressing component presses the target product.

[0011] Optionally, during the process of controlling the driving component to move the product fixing component towards the pressing component multiple times, the operation performed by the control unit further includes:

[0012] Record the number of movements of the fixed components of the product;

[0013] Determine whether the number of movements is greater than a preset number;

[0014] If so, then the test of the part to be tested is deemed complete;

[0015] If not, proceed to the step of recording the number of times the fixed parts of the product move.

[0016] Optionally, the control unit is also used to control the rotation and / or movement of the product fixing component so that the part to be tested faces the pressing component.

[0017] Optionally, after determining that the test part has been tested, the operation performed by the control unit further includes:

[0018] Determine whether all test parts of the target product have been tested.

[0019] If not, control the product fixing component to rotate and / or move so that the next test part of the target product faces the pressing component;

[0020] The drive component is controlled to move the product fixing component toward the pressing component, so that the pressing component presses the next part to be tested.

[0021] Optionally, before controlling the rotation and / or movement of the product fixing component, the operations performed by the control unit may further include:

[0022] The drive component is controlled to move the product fixing component to a safe position;

[0023] Wherein, when the product fixing component moves to the safe position, neither the product fixing component nor the target product will collide with other devices during the process of controlling the rotation and / or movement of the product fixing component.

[0024] Optionally, the control unit is also configured to record the pressure value of the pressure sensor at a target time, and generate a pressure test curve based on the pressure values ​​at all target times;

[0025] The target time is the end time of each movement of the fixed component of the product with the preset feed amount, and the pressure test curve is used to describe the correspondence between the total motion feed amount and the pressure value.

[0026] Optionally, the control unit is further configured to compare the pressure test curve with a preset curve, and output the pressure test result of the target product based on the comparison result;

[0027] The comparison results include curve similarity comparison results and / or limit value comparison results.

[0028] Optionally, the product fixing component includes a product fixing base, a product pressure plate disposed above the product fixing base, a slide mechanism, and a control switch;

[0029] When the control switch is triggered, the slide mechanism drives the product pressure plate to move downward, so that the target product is fixed between the product fixing seat and the product pressure plate.

[0030] Optionally, the product fixing component further includes a turntable mechanism; the product fixing seat is disposed on the turntable mechanism;

[0031] The turntable mechanism is used to drive the product mounting base to rotate according to the instructions of the control unit.

[0032] This application also provides a pressure testing method applied to the control unit of a pressure testing device. The pressure testing device includes a product fixing component for placing a target product, a pressing component fixed to a base plate and equipped with a pressure sensor, and a driving component connected to the product fixing component. The pressure testing method includes:

[0033] The drive component is controlled to move the product fixing component toward the pressing component multiple times, with each movement feeding a preset feed amount, so that the pressing component presses the target product;

[0034] The pressure sensor is used to detect the pressure value applied by the pressing component to the target product.

[0035] This application provides a pressure testing device, comprising: a product fixing component for placing a target product; a pressing component fixed to a base plate and equipped with a pressure sensor; wherein the pressure sensor is used to detect the pressure value applied by the pressing component to the target product; a driving component connected to the product fixing component; and a control unit connected to the driving component; wherein the control unit is used to control the driving component to drive the product fixing component to move towards the pressing component multiple times, with each movement feeding a preset feed amount, so that the pressing component presses the target product.

[0036] The pressure testing device provided in this application includes a product fixing component, a pressing component, a driving component, and a control unit. The target product is placed on the product fixing component, and the control unit controls the driving component to move the product fixing component towards the pressing component multiple times, with each movement feeding a preset amount. A pressure sensor then detects the pressure value applied to the target product by the pressing component. During the pressure testing of the target product using the above-mentioned pressure testing device, the pressure sensor remains stationary while the driving component moves the target product towards the pressing component, which eliminates the reading drift caused by the movement of the pressure sensor itself, thereby improving the accuracy of the pressure test. This application also provides a pressure testing method with the above-mentioned beneficial effects, which will not be elaborated further here. Attached Figure Description

[0037] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of a pressure testing device provided in an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the structure of a pressure testing device in a testing process provided in an embodiment of this application;

[0040] Figure 3 This is a schematic diagram of the structure of a watch pressure testing device provided in an embodiment of this application;

[0041] Figure 4 This is a schematic diagram of the structure of a product fixing component in a watch pressure testing device provided in an embodiment of this application. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] Please see below. Figure 1 , Figure 1This is a schematic diagram of a pressure testing device provided in an embodiment of this application. The pressure testing device specifically includes the following components: a product fixing component A, a component fixed to a base plate B, a pressing component C, a driving component D, and a control unit E. The pressure testing device can perform pressure testing on a target product M.

[0044] Specifically, the aforementioned product fixing component can be used to hold the target product. The shape of the product fixing component can be adapted to the shape of the target product to prevent relative movement between the target product and the product fixing component during pressure testing. The aforementioned target product can be an electronic product with pressure testing requirements, such as a smartwatch, tablet computer, Bluetooth headset, smartphone, or game controller.

[0045] The aforementioned product fixing component is connected to the driving component, which can drive the product fixing component to move, meaning the target product placed on the product fixing component also moves synchronously with it. The movement of the aforementioned product fixing component refers to its movement relative to the base plate of the pressure testing device.

[0046] The aforementioned pressing component is fixed to the base plate of the pressure testing device, and remains stationary relative to the base plate throughout the testing process. A pressure sensor is installed within the pressing component, which detects the force exerted between the pressing component and the target product. Since forces are mutual, the pressure sensor can detect the pressure value applied by the pressing component to the target product.

[0047] The aforementioned driving component is connected to the control unit. The control unit can control the driving component to move the product fixing component towards the pressing component, so that the pressing component presses the target product. Specifically, the control unit can control the driving component to move the product fixing component towards the pressing component multiple times, with each movement having a preset feed amount. For example, the product fixing component moves 10 mm towards the pressing component the first time, then after a 5-millisecond delay, moves 10 mm towards the pressing component a second time, then after a 5-millisecond delay, moves 10 mm towards the pressing component a third time, and so on. The direction of movement of the product fixing component can be the direction of the line connecting the target product and the pressing component. Before controlling the product fixing component to move towards the pressing component, there can also be an operation to adjust the position and angle of the product fixing component. Please refer to [link to relevant documentation]. Figure 2 , Figure 2 This is a schematic diagram of the structure of a pressure testing device in a testing process provided in an embodiment of this application, as shown below. Figure 2 As shown, the control unit can control the drive component to move the product fixing component toward the pressing component, so that the target product contacts the pressing component and applies force to the pressing component.

[0048] Please see Figure 3 , Figure 3This is a schematic diagram of another pressure testing device provided in an embodiment of this application. Figure 3 The pressure testing device shown further illustrates the composition of the pressing component. The pressing component includes a pressure head connecting block 2, a precision pressure sensor 3, a pressing head 4, and a sensor mounting base 5. The sensor mounting base 5 is mounted on the base plate 6, the precision pressure sensor 3 is mounted on the sensor mounting base 5, and the pressing head 4 is mounted on the sensor mounting base 5 via the pressure head connecting block 2. The precision pressure sensor 3 detects the pressure applied to the pressing head 4 via the pressure head connecting block 2. Figure 3 In the diagram, 11 represents the product fixing component, and 7 represents the driving component (such as an electric cylinder). The aforementioned pressure testing device may also include a display and control instrument 1 for displaying the working status of the pressure testing device, a pressure gauge 8 for displaying the pressure value received by the pressing head, a photoelectric sensor switch 9 for activating the pressure testing device, a photoelectric switch mounting base 10 for mounting the photoelectric sensor switch 9, and a mechanical limit block 12 for limiting the position of the product fixing component.

[0049] The pressure testing device provided in this embodiment includes a product fixing component, a pressing component, a driving component, and a control unit. The target product is placed on the product fixing component, and the control unit controls the driving component to move the product fixing component towards the pressing component multiple times, with each movement feeding a preset amount. A pressure sensor then detects the pressure value applied to the target product by the pressing component. During the pressure testing of the target product using the above-described pressure testing device, the pressure sensor remains stationary while the driving component moves the target product towards the pressing component. This eliminates reading drift caused by the movement of the pressure sensor itself, thereby improving the accuracy of the pressure test.

[0050] As for Figure 1 In a further description of the corresponding embodiment, to prevent the product from falling or slipping during pressure testing, the aforementioned product fixing component may include a product fixing seat, a product pressure plate, a slide mechanism, and a control switch. Specifically, the product pressure plate is connected to the slide mechanism, and the product pressure plate can move towards the position of the product fixing seat under the drive of the slide mechanism, so that the target product is fixed between the product fixing seat and the product pressure plate. The aforementioned control switch is used to control the slide mechanism to drive the product pressure plate to move.

[0051] As a feasible embodiment, the product fixing seat and the product pressure plate can be arranged opposite each other on the left and right. After the control switch is triggered, the slide mechanism drives the product pressure plate to move to the left or right, so as to reduce the distance between the product fixing seat and the product pressure plate, thereby clamping the target product between the product fixing seat and the product pressure plate.

[0052] As another feasible embodiment, the product fixing seat and the product pressure plate can be arranged vertically opposite each other. After the control switch is triggered, the slide mechanism drives the product pressure plate to move up or down, so as to reduce the distance between the product fixing seat and the product pressure plate, thereby clamping the target product between the product fixing seat and the product pressure plate.

[0053] Furthermore, when the target component has multiple test areas, the aforementioned product fixing component can have a rotation function. Specifically, the product fixing component includes a turntable mechanism that can rotate the target product clockwise or counterclockwise by any angle. If the product fixing component also includes a product fixing seat, the product fixing seat is disposed on the turntable mechanism and rotates with the turntable mechanism. The turntable mechanism can be connected to a control unit. When the status mechanism receives a command transmitted from the control unit, it can rotate by a corresponding angle according to the command to change the relative positional relationship between the pressable area and the pressing component in the target product.

[0054] Based on the above description, the structure of the product fixing component in the aforementioned watch pressure testing device is as follows: Figure 4 As shown, the aforementioned turntable mechanism is specifically a pneumatic turntable 19, and the slide mechanism is specifically a pneumatic slide 20. The cylinder connecting plate 13 of the product fixing component connects the pneumatic turntable 19 and the pneumatic slide 20 to their respective cylinders. The product fixing seat 17 is connected to the pneumatic turntable 19 via a product seat connecting plate 18, and the product pressure plate 15 is connected to the pneumatic slide 20 via a pressure block connecting plate 14. The product fixing component also includes an angle limiting structure 21 to limit the rotation of the pneumatic turntable 19. Figure 4 The number 16 in the text indicates the target product to be tested.

[0055] As a feasible implementation, the control unit can control the drive component to move the product fixing component towards the pressing component in steps of a preset feed amount. After each preset feed amount movement, the control unit can record the pressure value collected by the pressure sensor. The process of controlling the drive component to move the product fixing component is as follows: steps 1 to 3:

[0056] Step 1: Control the drive component to move the product fixing component along the preset direction by the preset feed amount, and record the number of movements.

[0057] The preset direction is the direction of the line connecting the part of the target product to be tested to the pressing head of the pressing component. The target product may include one or more parts to be tested. For example, the parts to be tested for a smartwatch may include any or a combination of the screen, crown, and power button; the parts to be tested for a smartphone may include any or a combination of the screen, volume buttons, and lock screen button; and the parts to be tested for a game controller may include any or a combination of the joystick, trigger button, and directional buttons.

[0058] Before the control unit first controls the drive component to move the product fixing component towards the pressing component, there may be an operation to reset the value of the movement count to zero. The movement count describes the number of times the product fixing component moves along a preset direction by a preset feed amount.

[0059] Step 2: Determine if the number of exercises is greater than the preset number; if yes, proceed to Step 3; if no, proceed to Step 1.

[0060] Step 3: Determine that the testing of the area to be tested is complete;

[0061] As a feasible implementation method, after the test of the part to be tested is completed, there may be an operation to clear the value of the number of movements to zero.

[0062] As a possible implementation, before performing step 1 above, the control unit can control the product fixing component to rotate and / or move so that the part to be tested faces the pressing component. Specifically, "the part to be tested facing the pressing component" means that the projection of the part to be tested along the driving direction of the driving component falls on the pressing head of the pressing component.

[0063] As a feasible implementation, if the target product has multiple parts to be tested and there are still parts that have not been tested, the control unit can perform the following operations after step 3 of the above embodiment:

[0064] Step 4: Determine whether all test parts of the target product have been tested; if yes, the stress test of the target product has been completed; if not, proceed to Step 5.

[0065] Step 5: Control the rotation and / or movement of the product fixing parts so that the next test part of the target product faces the pressing part.

[0066] When there are multiple test parts of the target product, each test part can be set at multiple parts of the target product. Before testing the next test part, the product fixing parts can be controlled to rotate and / or move in order to adjust the position and / or angle of the target product.

[0067] Step 6: Control the drive component to move the product fixing component toward the pressing component, so that the pressing component presses the next part to be tested.

[0068] Specifically, step 6 above can include the following process: controlling the drive component to move the product fixing component along a preset direction by a preset feed amount, and recording the number of movements. Determining whether the number of movements is greater than the preset number; if yes, then determining that the next test part has been tested; if not, then proceeding to the step of controlling the drive component to move the product fixing component along a preset direction by a preset feed amount, and recording the number of movements.

[0069] Furthermore, to avoid collisions during the rotation and / or movement of the product fixing component, the control unit performs the following operations before controlling the rotation and / or movement of the product fixing component: controlling the drive component to move the product fixing component to a safe position; wherein, when the product fixing component moves to the safe position, neither the product fixing component nor the target product will collide with other devices during the rotation and / or movement of the product fixing component. As a feasible implementation, after determining that the pressure test of the target product has been completed, the drive component can also be controlled to move the product fixing component to the aforementioned safe position.

[0070] As a feasible implementation, the control unit can also be used to record the pressure value of the pressure sensor at a target time and generate a pressure test curve based on the pressure values ​​at all target times. The target time is the end time of each preset feed amount for the fixed component of the product, and the pressure test curve describes the correspondence between the total feed amount and the pressure value. After obtaining the pressure test curve, this embodiment can output the pressure test result of the target product using the pressure test curve. Specifically, the control unit can compare the pressure test curve with a preset curve and output the pressure test result of the target product based on the comparison result. The comparison result includes curve similarity comparison results and / or limit value comparison results. The aforementioned preset curve is the pressure test curve obtained after a standard product undergoes a pressure test using a pressure testing device.

[0071] The process described in the above embodiments is illustrated below through a pressure measurement scheme for the crown in a practical application.

[0072] With the development of smart wearable device technology, smartwatches are increasingly becoming a part of users' lives, making crown testing an important technical task. In related technologies, smartwatches are frequently operated by pressing the crown, and the amount of pressure applied to the crown is crucial to the user experience. Currently, most methods for measuring button force use a cylinder to drive a pressure sensor to press the button. By reading the pressure sensor's value, the actual pressing force of the product is determined. However, this method cannot fully reflect the pressure changes during the crown pressing process, nor can it generate graphs to analyze these pressure changes.

[0073] Taking the example of the smartwatch whose crown and power button both require pressure testing, the working process of the watch pressure testing device is as follows:

[0074] Operation 1: Place the smartwatch in the product holder and press the start button to make the pneumatic slide press down and lock the product pressure plate.

[0075] Operation 2: The electric cylinder moves the product quickly to the vicinity of the pressing head, with the crown facing the pressing head. Then, it slowly feeds the product at a specific feed rate until the pressure sensor contacts the crown. Continue moving at the set feed rate, recording the pressure sensor value after each movement and plotting the pressure curve using testing software. Once the test is complete, the electric cylinder returns to its initial position.

[0076] Operation 3: The pneumatic turntable moves, causing the smartwatch to rotate 64.42 degrees so that the power button faces the press head.

[0077] Operation 4: The electric cylinder moves the smartwatch quickly to the vicinity of the pressing head, and then slowly feeds it at a specific feed rate until the pressure sensor contacts the power button. Then it continues to move at a specific feed rate, recording the pressure sensor value and plotting the pressure curve for each movement. After the test is completed, the electric cylinder returns to the initial position.

[0078] Operation 5: The pneumatic slide is raised, the product pressure plate moves up, and the product is deemed qualified or unqualified according to the software prompts, so as to determine the product flow route.

[0079] This embodiment records and plots curves of pressure at different displacements, clearly reflecting the pressure changes during the pressing of the crown and power button. By comparing with a set curve and extreme values, it analyzes each point of change on the curve to accurately evaluate the characteristic indicators of the crown and power button. Furthermore, this embodiment can also evaluate the actual button force by analyzing curve changes (including slope, mean, etc.), thus providing better feedback on the actual user experience. This embodiment monitors the entire pressing process and records accurate numerical curves, providing effective data support for product analysis, definition, and design. Datafication of the tactile button pressing process is a better method for evaluating button force.

[0080] The above embodiment is mainly used for pressure detection in smartwatches. A high-precision pressure sensor remains stationary. An electric cylinder moves the smartwatch towards the pressure sensor. After contact with the smartwatch, a pressure sensor reading is taken and recorded for each specific distance (e.g., 0.02mm). A curve is then plotted with the X-axis representing displacement (i.e., total feed amount) and the Y-axis representing pressure. By observing the curve's variation and extreme deviations, it's possible to determine if the product meets design requirements. This embodiment also provides accurate data support for product design, with the pneumatic turntable switching between different button measurement positions. This invention eliminates the influence of relative motion on sensor readings. It features high detection accuracy, good repeatability, high efficiency, and simple operation. It solves the problem of detailed evaluation of button pressing processes, recording pressure changes at different displacements and plotting button force curves.

[0081] This application also provides a pressure testing method, which can be applied to the control unit of a pressure testing device. The pressure testing device includes a product fixing component for placing a target product, a pressing component fixed to a base plate and equipped with a pressure sensor, and a driving component connected to the product fixing component. The pressure testing method includes:

[0082] The control drive component drives the product fixing component to move towards the pressing component multiple times, with each movement feeding a preset feed amount so that the pressing component presses the target product;

[0083] A pressure sensor is used to detect the pressure applied to the target product by the pressing component.

[0084] The pressure testing device provided in this embodiment includes a product fixing component, a pressing component, a driving component, and a control unit. The target product is placed on the product fixing component, and the control unit controls the driving component to move the product fixing component towards the pressing component multiple times, with each movement feeding a preset amount. A pressure sensor then detects the pressure value applied to the target product by the pressing component. During the pressure testing of the target product using the above-described pressure testing device, the pressure sensor remains stationary while the driving component moves the target product towards the pressing component. This eliminates reading drift caused by the movement of the pressure sensor itself, thereby improving the accuracy of the pressure test.

[0085] Furthermore, during the process of controlling the driving component to move the product fixing component towards the pressing component multiple times, the method also includes:

[0086] Record the number of movements of the fixed components of the product;

[0087] Determine whether the number of movements is greater than a preset number;

[0088] If so, then the test of the part to be tested is deemed complete;

[0089] If not, proceed to the step of recording the number of times the fixed parts of the product move.

[0090] Furthermore, it also includes:

[0091] Control the rotation and / or movement of the product's fixed components so that the part to be tested faces the pressing component.

[0092] Furthermore, after determining that the testing of the area to be tested has been completed, the process also includes:

[0093] Determine whether all testable parts of the target product have been tested.

[0094] If not, control the rotation and / or movement of the product fixing parts so that the next test part of the target product faces the pressing part;

[0095] The control drive component moves the product fixing component toward the pressing component, so that the pressing component presses the next part to be tested.

[0096] Furthermore, before controlling the rotation and / or movement of the fixed parts of the product, the following are also included:

[0097] The control drive component moves the product's fixed component to a safe position;

[0098] When the product fixing component moves to a safe position, neither the product fixing component nor the target product will collide with other devices during the process of controlling the rotation and / or movement of the product fixing component.

[0099] Furthermore, it also includes:

[0100] Record the pressure value of the pressure sensor at the target time, and generate a pressure test curve based on the pressure values ​​at all target times;

[0101] The target time is the end time of the preset feed amount for each movement of the fixed part of the product, and the pressure test curve is used to describe the correspondence between the total motion feed amount and the pressure value.

[0102] Furthermore, it also includes:

[0103] The pressure test curve is compared with the preset curve, and the pressure test results of the target product are output based on the comparison results.

[0104] The comparison results include curve similarity comparison results and / or limit value comparison results.

[0105] Furthermore, the product fixing components include a product fixing base, a product pressure plate disposed above the product fixing base, a slide mechanism, and a control switch;

[0106] When the control switch is triggered, the slide mechanism drives the product pressure plate to move downwards, so that the target product is fixed between the product fixing seat and the product pressure plate.

[0107] Furthermore, the product fixing components also include a turntable mechanism; the product fixing seat is disposed on the turntable mechanism;

[0108] The turntable mechanism is used to drive the product mounting base to rotate according to the instructions of the control unit.

[0109] Since the embodiments of the method section correspond to the embodiments of the apparatus section, please refer to the description of the embodiments of the apparatus section for the embodiments of the method section, and they will not be repeated here.

[0110] This application also provides a storage medium on which a computer program is stored, which, when executed, can perform the steps provided by the stress testing method described above. The storage medium may include various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0111] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0112] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A pressure testing device, characterized in that, The application relates to a product testing device for testing a target product, and belongs to the technical field of product testing. The product testing device comprises: a product fixing component for placing the target product, wherein the target product is a smart watch; a pressing component fixed to a bottom plate and provided with a pressure sensor, wherein the pressure sensor is used for detecting a pressure value applied by the pressing component to the target product; the pressing component comprises a pressure head connecting block, a pressure sensor, a pressing head and a sensor fixing seat, the sensor fixing seat is installed on the bottom plate, the pressure sensor is arranged on the sensor fixing seat, the pressing head is arranged on the sensor fixing seat through the pressure head connecting block, and the pressure sensor detects the pressure applied to the pressing head through the pressure head connecting block; a driving component connected with the product fixing component; a control unit connected with the driving component, wherein the control unit is used for controlling the driving component to drive the product fixing component to move towards the pressing component multiple times, each time feeding a preset feeding amount, so that the pressing component presses a crown of the smart watch; the control unit is further used for recording pressure values of the pressure sensor at target time points, and generating a pressure test curve according to all the pressure values at the target time points, wherein the target time points are time points at which the product fixing component moves the preset feeding amount each time, and the pressure test curve is used for describing a corresponding relationship between a total movement feeding amount and a pressure value; after it is determined that the to-be-tested part is tested, the control unit further performs the following operations: determining whether all to-be-tested parts of the target product are tested; if not, controlling the product fixing component to rotate and / or move, so that a next to-be-tested part of the target product faces the pressing component; and controlling the driving component to drive the product fixing component to move towards the pressing component, so that the pressing component presses the next to-be-tested part. Before the product fixing component is controlled to rotate and / or move, the control unit further performs the following operations: controlling the driving component to drive the product fixing component to move to a safe position; wherein when the product fixing component moves to the safe position, the product fixing component and the target product do not collide with other devices in the process of controlling the product fixing component to rotate and / or move. In the process of controlling the driving component to drive the product fixing component to move towards the pressing component multiple times, the control unit further performs the following operations: recording the movement times of the product fixing component; determining whether the movement times are greater than a preset number of times; if yes, determining that the to-be-tested part is tested; and if not, entering the step of recording the movement times of the product fixing component. The control unit is further used for controlling the product fixing component to rotate and / or move, so that the to-be-tested part faces the pressing component. The control unit is further used for comparing the pressure test curve with a preset curve, and outputting a pressure test result of the target product according to a comparison result; wherein the comparison result comprises a curve similarity comparison result and / or a limit value comparison result. ​ ​ 2. The pressure testing device of claim 1, wherein, ​ ​ ​ ​ ​ 3. The pressure testing device of claim 2, wherein, ​ 4. The pressure testing device of claim 1, wherein, ​ ​ 5. The pressure testing device of claim 1, wherein, The product fixing component comprises a product fixing base, a product pressing plate arranged above the product fixing base, a sliding table mechanism and a control switch. After the control switch is triggered, the sliding table mechanism drives the product pressing plate to move downward, so that the target product is fixed between the product fixing base and the product pressing plate.

6. The pressure testing device of claim 1, wherein, The product fixing component further comprises a rotating table mechanism, and the product fixing base is arranged on the rotating table mechanism. The rotating table mechanism is used to drive the product fixing base to rotate according to the instruction of the control unit.

7. A method of pressure testing, characterized by, The control unit is applied to the pressure testing device described in any one of claims 1 to 6, the pressure testing device comprises a product fixing component for placing a target product, a pressing component fixed to a bottom plate and provided with a pressure sensor, and a driving component connected with the product fixing component, the target product is a smart watch, and the pressure testing method comprises the following steps: The driving component drives the product fixing component to move towards the pressing component multiple times, and each time the product fixing component moves by a preset feed amount, so that the pressing component presses the crown of the smart watch; The pressure sensor is used to detect the pressure value applied by the pressing component to the target product, the pressing component comprises a pressing head connecting block, a pressure sensor, a pressing head and a sensor fixing base, the sensor fixing base is mounted on the bottom plate, the pressure sensor is arranged on the sensor fixing base, the pressing head is arranged on the sensor fixing base through the pressing head connecting block, and the pressure sensor detects the pressure borne by the pressing head through the pressing head connecting block; The pressure values of the pressure sensor at target time points are recorded, and a pressure testing curve is generated according to all the pressure values at the target time points; The target time points are the end time points of each movement of the product fixing component by the preset feed amount, and the pressure testing curve is used to describe the corresponding relationship between the total movement feed amount and the pressure value; After it is determined that the testing of the to-be-tested part is completed, the method further comprises the following steps: determining whether all the to-be-tested parts of the target product are tested; if not, rotating and / or moving the product fixing component, so that the next to-be-tested part of the target product faces the pressing component; and driving the product fixing component to move towards the pressing component by the driving component, so that the pressing component presses the next to-be-tested part. Before the product fixing component is controlled to rotate and / or move, the method further comprises the following step: driving the product fixing component to move to a safe position by the driving component; when the product fixing component moves to the safe position, the product fixing component and the target product do not collide with other devices during the process of controlling the product fixing component to rotate and / or move.

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