Interface testing method and apparatus

Abstract

The application discloses an interface testing method, which tests an interface by using an interface testing device. The interface testing device comprises a base, a driving device arranged on the base, and a mounting assembly arranged on the driving device. The mounting assembly is used for mounting a connector assembly. The driving device is used for driving the mounting assembly to drive the connector assembly to forwardly insert into an interface assembly. A pressure sensor is arranged on the mounting assembly and is used for detecting the pressure received by the connector assembly. The method comprises the following steps: S100, collecting the pressure B1 of the pressure sensor. When A1>=B1 is met between B1 and a pressure preset value A1, the driving device is controlled to drive the connector assembly to feed in the direction of the interface assembly; S200, during the feeding process of the connector assembly in the direction of the interface assembly, when A1 / k>=B1 is met, the driving device is controlled to continuously drive the connector assembly to feed in the direction of the interface assembly, wherein k is a constant greater than 1; and S300, when a signal conduction of the connector assembly and the interface assembly is completed, the testing is ended.

Description

Technical Field

[0001] This invention relates to the field of testing, and in particular to an interface testing method and apparatus. Background Technology

[0002] With the advancement of technology, the interfaces that enable data interaction in products are also undergoing technological optimization and iteration, becoming faster and more efficient. To ensure a smooth data interaction experience for consumer electronics products, manufacturers typically conduct interface testing. The quality of this testing is often directly and significantly related to the quality of the port contacts, a technical blind spot that is easily overlooked.

[0003] Currently, there are two main methods for aligning interfaces and connectors in interface testing equipment: one is to use mechanical limiters for alignment; the other is to use a camera in conjunction with a visual algorithm to adjust the connector position. Due to factors such as product shape errors, interface position errors, and product placement errors, the alignment accuracy of mechanical limiters is not high. While adjusting the connector position using a camera in conjunction with a visual algorithm has higher accuracy, visual inspection can only be performed when the connector is inserted into the interface. After the connector is inserted, inspection cannot be performed, making it difficult to ensure that the connector can be accurately inserted into the interface and conduct electricity throughout the entire testing process. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an interface testing method that can detect the state of the connector during the insertion of the connector into the interface and during the process from the connector being inserted into the interface to the connector becoming conductive with the interface, thereby better ensuring that the connector assembly is correctly inserted into the interface assembly and becomes conductive.

[0005] The interface testing method of the present invention uses an interface testing device to test the interface. The interface testing device includes: a base; a driving device disposed on the base; a mounting component disposed on the driving device, the mounting component being used to mount a connector assembly, and the driving device being used to drive the mounting component to move the connector assembly forward into the interface assembly; and a pressure sensor disposed on the mounting component, the pressure sensor being used to detect the pressure on the connector assembly.

[0006] Interface testing methods include the following steps:

[0007] S100: Collect the pressure B1 from the pressure sensor. When B1 and the preset pressure value A1 satisfy A1≥B1, control the drive device to move the connector assembly towards the interface assembly. S200: During the process of the connector assembly moving towards the interface assembly, when A1 / k≥B1, control the drive device to continuously move the connector assembly towards the interface assembly, where k is a constant greater than 1. S300: When the connector assembly and the interface assembly complete signal conduction, the test ends.

[0008] According to some embodiments of the present invention, in step S200, when A1 / k < B1, the drive device is stopped and an alarm signal is issued.

[0009] According to some embodiments of the present invention, k=150%.

[0010] According to some embodiments of the present invention, in step S100, when A1 < B1 and C1 ≤ 50%, the drive device is controlled to drive the connector assembly to feed towards the interface assembly, wherein:

[0011] .

[0012] According to some embodiments of the present invention, in step S100, when A1 < B1 and C1 > 50%, the drive device is stopped and an alarm signal is issued.

[0013] According to some embodiments of the present invention, in step S200, during the process of the connector assembly feeding towards the interface assembly, the value of B1 is collected every 0.05s.

[0014] According to some embodiments of the present invention, in step S100, the value of A1 is 120% of the allowable frictional force when the connector assembly is inserted into the interface assembly.

[0015] The interface testing apparatus of the second aspect of the present invention includes: a base; a driving device disposed on the base; a mounting component disposed on the driving device, the mounting component being used to mount a connector assembly, and the driving device being used to drive the mounting component to move the connector assembly forward into the interface assembly; and a pressure sensor disposed on the mounting component, the pressure sensor being used to detect the pressure on the connector assembly.

[0016] According to some embodiments of the present invention, the driving device includes: a drive motor, mounted on a base; a transmission screw, rotatably mounted on the base, the drive motor driving the transmission screw to rotate; and a transmission nut, threadedly engaged with the transmission screw, the transmission nut being fixedly connected to the mounting assembly.

[0017] According to some embodiments of the present invention, the interface testing device further includes a connecting component, a drive motor, a transmission screw and a transmission nut disposed on the lower side of the base, a mounting component disposed on the upper side of the base, and a connecting component connecting the mounting component and the transmission nut.

[0018] According to some embodiments of the present invention, the mounting assembly includes: a third connector fixedly connected to the connecting assembly; a cantilever assembly disposed on the third connector, the cantilever assembly being used to mount the connector assembly; a guide post disposed on the third connector, and a linear bearing slidably engaged with the guide post disposed on the cantilever assembly.

[0019] According to some embodiments of the present invention, an overpressure protection spring is connected between the cantilever assembly and the first connecting member.

[0020] According to some embodiments of the present invention, the mounting assembly further includes a first connector disposed on the cantilever assembly, a pressure sensor connected between the first connector and the cantilever assembly, and a connector assembly disposed on the first connector.

[0021] According to some embodiments of the present invention, the mounting assembly further includes a second connector disposed on the first connector, the second connector being provided with a second spring, and the second spring connecting the connector assembly and the second connector.

[0022] According to some embodiments of the present invention, a first spring and a plurality of equalizing screws are connected between the first connector and the second connector, the equalizing screws being used to adjust the position of the second connector relative to the first connector.

[0023] According to some embodiments of the present invention, the cantilever assembly is hollow.

[0024] By applying the above interface testing method, during the interface testing process, the insertion force of the connector assembly into the interface assembly can be detected in real time by a pressure sensor. The connector assembly is only controlled to insert into the interface assembly if A1≥B1 (i.e., the insertion force is within the allowable range). Subsequently, during the feeding process of the connector assembly, the connector assembly is controlled to continue feeding until the connector assembly and interface assembly are connected if A1 / k≥B (i.e., the insertion force is within the allowable range). The insertion force of the connector assembly can be detected throughout the entire testing process, including insertion and subsequent continuous feeding, thus ensuring that the insertion force remains within the allowable range and effectively reducing the possibility of damage to the connector assembly or interface assembly due to excessive insertion force.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is an isometric view of the interface testing device in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of the interface testing device;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 For Figure 2 Enlarged view of B in the middle;

[0031] Figure 5 For Figure 1 Schematic diagram of the interface test device additionally showing part of the structure;

[0032] Figure 6 Flowchart of the interface test method in the embodiment of the application;

[0033] Figures 1 to 5 The following reference signs are included.

[0034] DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0037] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two and more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0038] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0039] With reference to Figures 1 to 5In a first aspect of this embodiment, an interface testing device is provided, characterized in that it includes: a base 100; a driving device disposed on the base 100; a mounting component disposed on the driving device, the mounting component being used to mount a connector assembly 330, and the driving device being used to drive the mounting component to move the connector assembly 330 forward into the interface assembly 410; and a pressure sensor 321 disposed on the mounting component, the pressure sensor 321 being used to detect the pressure on the connector assembly 330.

[0040] The pressure sensor 321 is used to detect the pressure on the connector assembly 330. When the connector assembly 330 is inserted into the interface assembly 410, the pressure sensor 321 detects the insertion and extraction force of the connector assembly 330. In this embodiment, the drive device can drive the installation assembly to move in various ways, such as by using a linear motor, or by using a cylinder or hydraulic cylinder. During the test, the drive device will drive the installation assembly to move at a relatively slow speed. On the one hand, this reduces the possibility of damage when the connector assembly 330 is in the wrong position or orientation. On the other hand, the pressure on the connector assembly 330 during slow movement is close to the insertion force when the connector assembly 330 is inserted. It can be approximated that the pressure sensor 321 detects the insertion force of the connector assembly.

[0041] In this embodiment, both the connector assembly 330 and the interface assembly 410 are objects tested by the interface testing device, rather than being part of the interface testing device.

[0042] like Figure 1 , Figure 5 As shown, the driving device includes: a drive motor 210, mounted on the base 100; a transmission screw 214, rotatably mounted on the base 100, the drive motor 210 driving the transmission screw 214 to rotate; and a transmission nut 220, threadedly engaged with the transmission screw 214, the transmission nut 220 being fixedly connected to the mounting assembly. In the actual testing process, the drive motor 210 drives the transmission screw 214 to rotate, causing the transmission nut 220 and the connector assembly 330 to feed together toward the interface assembly 410. Due to the large reduction ratio and reverse self-locking characteristics of the screw-nut mechanism, the connector assembly 330 can be fed at a lower speed, ensuring testing accuracy.

[0043] like Figure 1 , Figure 5As shown, the interface testing device also includes a connecting component 310. A drive motor 210, a transmission screw 214, and a transmission nut 220 are disposed on the lower side of the base 100. A mounting component is disposed on the upper side of the base 100. The connecting component 310 connects the mounting component and the transmission nut 220. Specifically, a motor mounting base 211 is suspended below the base 100, and the drive motor 210 is mounted on the motor mounting base 211. The shaft of the drive motor 210 is connected to the transmission screw 214 via a coupling 212. A third [unclear - possibly a component or component] is also suspended below the base 100. A bearing housing 213 and a second bearing housing 230 are provided, each containing a bearing for mounting a transmission screw 214. A connecting assembly 310 passes through the base 100. The lower end of the connecting assembly 310 is fixedly connected to the transmission nut 220, and the upper end of the connecting assembly 310 is fixedly connected to the mounting assembly. A sliding groove is provided on the base 100, through which the connecting assembly 310 passes. The base 100 provides a limit for the connecting assembly 310, allowing it to move smoothly under the drive of the driving nut.

[0044] like Figures 2 to 4 As shown, the mounting assembly includes: a third connector 327, fixedly connected to the connecting assembly 310; a cantilever assembly 320, mounted on the third connector 327, used to mount the connector assembly 330; a guide post 328 is provided on the third connector 327, and a linear bearing that slides with the guide post 328 is provided on the cantilever assembly 320; an overpressure protection spring 329 is connected between the cantilever assembly 320 and the third connector 327; since the interface assembly 410 is generally located on the device under test, and is situated outside the base 100, the cantilever assembly 320 needs to extend so that the connector assembly 330 can be inserted into the interface assembly 410; to prevent damage to the device due to excessive insertion or extraction force caused by incorrect positioning of the connector assembly 330 and the assembly, the cantilever assembly 320 and the third connector 327... An overpressure spring 329 is connected between the components. When the insertion and extraction force is too large, the overpressure spring 329 can be automatically compressed to reduce the insertion and extraction force. In addition, in order to prevent the cantilever assembly 320 from tilting down, a linear bearing is provided on the cantilever assembly 320, and a guide post 328 is provided on the third connecting member 327. With the cooperation of the linear bearing and the guide post 328, when the overpressure spring 329 is deformed, the cantilever assembly 320 will only slide along the extension direction of the guide post 328 and will not tilt down. In the actual equipment, the connecting assembly 310 is provided with a third connecting member 327, and both the guide post 328 and the overpressure spring 329 are provided on the third connecting member 327. There are multiple overpressure springs 329, which are distributed around the guide post 328. Each overpressure spring 329 is also provided with a support shaft.

[0045] like Figure 2 , Figure 3As shown, the mounting assembly also includes a first connector 322, which is disposed on the cantilever assembly 320. A pressure sensor 321 is connected between the first connector 322 and the cantilever assembly 320. A connector assembly 330 is disposed on the first connector 322. The mounting assembly also includes a second connector 325 disposed on the first connector 322. A second spring 326 is disposed on the second connector 325. The second spring 326 connects the connector assembly 330 and the second connector 325. Here, there are multiple second springs 326, all of which are compression springs. The connector assembly 330 is connected to the second connector 325 through multiple second springs 326. During the insertion process, when the connector assembly 330 is slightly tilted, the second springs 326 can provide a certain corrective force to ensure that the connector assembly 330 is inserted smoothly, thus avoiding damage caused by forcibly inserting the connector assembly 330 when it is tilted.

[0046] like Figure 3 As shown, a first spring 323 and a plurality of height-adjusting screws 324 are connected between the first connector 322 and the second connector 325. The height-adjusting screws 324 are used to adjust the position of the second connector 325 relative to the first connector 322. There are multiple height-adjusting screws 324 and multiple first springs 323. Taking the extension direction of the cantilever assembly 320, i.e., the feed direction of the connector assembly 330, as the axial direction, the height-adjusting screws 324 and the first springs 323 are distributed circumferentially along the cantilever assembly 320. Figure 3 As shown, multiple equal-height screws 324 are distributed around multiple first springs 323. The first springs 323 are used to maintain the interval between the first connector 322 and the second connector 325. When it is necessary to adjust the posture of the second connector 325 and the plug assembly, it is only necessary to adjust the equal-height screws 324 at the corresponding positions.

[0047] like Figure 2 As shown, the cantilever assembly 320 is hollow. In order to drive the joint assembly 330 to feed, the cantilever assembly 320 needs to extend a certain length outward from the base 100. However, using a solid cantilever assembly 320 would cause excessive load on the linear bearing and guide shaft, resulting in wear on the fixture. Therefore, a hollow cantilever assembly 320 is used to reduce the load on the linear bearing and guide shaft by reducing the weight of the cantilever assembly 320.

[0048] like Figures 1 to 6 The interface testing method of the second aspect of this embodiment, using the aforementioned interface testing device, includes the following steps:

[0049] S100: Collect the pressure B1 from the pressure sensor 321. When B1 and the preset pressure value A1 satisfy A1≥B1, control the drive device to drive the connector assembly 330 to feed towards the interface assembly 410.

[0050] During the process of S200 and the connector assembly 330 moving towards the interface assembly 410, when A1 / k≥B1, the control drive device continuously drives the connector assembly 330 to move towards the interface assembly 410, where k is a constant greater than 1.

[0051] S300. When the connector assembly 330 and the interface assembly 410 complete signal conduction, the test ends.

[0052] By applying the above interface testing method, during the interface testing process, the insertion force of the connector assembly 330 into the interface assembly 410 can be detected in real time by the pressure sensor 321. When the connector assembly 330 is inserted into the interface assembly 410, the insertion force is controlled to be within the allowable range if A1≥B1 is satisfied. Subsequently, during the feeding process of the connector assembly 330, the insertion force is controlled to be within the allowable range if A1 / k≥B is satisfied, and the connector assembly 330 continues to feed until the connector assembly 330 and the interface assembly 410 are connected. The insertion force of the connector assembly 330 can be detected throughout the entire testing process, including insertion and subsequent continuous feeding, thereby ensuring that the insertion force is always within the allowable range during the testing process and effectively reducing the occurrence of damage to the connector assembly 330 or the interface assembly 410 due to excessive insertion force.

[0053] In this embodiment, S100 to S300 are actually three steps executed sequentially. In S100, A1≥B1 is actually detecting whether the insertion force of the connector assembly 330 when it is first inserted into the interface assembly 410 meets the requirements. In S200, when A1 / k≥B1, controlling the drive device to continuously drive the connector assembly 330 to feed towards the interface assembly 410 is detecting whether the insertion force of the connector assembly 330 when it is fed into the interface assembly 410 meets the requirements. Therefore, the allowable insertion force value in step S200 is lower than the insertion force when the connector assembly 330 is first inserted into the interface assembly 410. Therefore, in the judgment condition of step S200, A1 needs to be divided by a constant greater than 1.

[0054] In the testing process of this embodiment, B1 is actually the pressure value detected by the pressure sensor 321; while A1 is generally 120% of the allowable friction force when the connector assembly 330 is inserted into the interface assembly 410.

[0055] During the continuous feeding in step 200, when A1 / k < B1, it indicates that the insertion force of the connector assembly 330 into the interface assembly 410 exceeds the specified value. At this time, the drive device stops running and an alarm signal is issued. When A1 / k < B1, it means that the insertion force of the connector assembly 330 into the interface assembly 410 exceeds the preset value during continuous feeding. Continuing to feed may cause damage to the equipment. Therefore, the drive device can be stopped and an alarm signal can be issued to remind the operator to adjust the position of the connector assembly 330 and / or the interface assembly 410 before continuing the test. The alarm signal can take various forms, such as issuing a warning sound through a speaker or issuing a warning light through a light group. During the test, the larger the value of k, the less likely the equipment is to be damaged, but the alarm frequency will be greatly increased. Therefore, according to the actual test needs, the value of k is generally 150%.

[0056] In step S300, the entire test process is terminated and the drive motor 210 stops operating once the connector assembly 330 and the interface assembly 410 complete the signal conduction.

[0057] During the feeding of the connector assembly 330, the drive motor 210 drives the plug assembly to feed at a translational speed of 1 mm / s. Every 0.05 s, the value of B1 is collected from the pressure sensor 321 and judged. It can promptly judge abnormal conditions and stop the machine during the entire feeding process.

[0058] In step S100, when A1 < B1, it indicates that the insertion force exceeded the limit at the beginning of the test. There are two possibilities: one is that the orientation or position of the connector assembly 330 is incorrect, and continued insertion will damage the equipment, requiring immediate stopping of the test and adjustment; the other is that the insertion force exceeded the limit due to some reason, such as a slight offset in the position of the connector assembly 330, and no adjustment is needed to continue the test. To determine these two possibilities, C1 needs to be judged; C1 is calculated using the following formula: When C1 ≤ 50%, it indicates that the connector assembly 330 can continue to feed, and step S200 can be executed to control the drive device to drive the plug assembly to continue feeding. When C1 > 50%, the drive device is stopped and an alarm signal is issued. At this time, it is necessary to adjust the position of the connector assembly 330 and / or the interface assembly 410 and then restart the test.

[0059] During the entire testing process, the states of connector assembly 330 and interface assembly 410 generally fall into three categories: First, connector assembly 330 is initially inserted accurately, and the insertion force remains within the normal range throughout the subsequent insertion process. In this case, connector assembly 330 can be smoothly inserted into interface assembly 410, ensuring paper signal conduction. Second, connector assembly 330 is initially inserted inaccurately. During the subsequent insertion process, the initial data is normal, but the data becomes abnormal at a certain point, causing the test to stop and trigger an alarm. Third, connector assembly 330 is initially inserted inaccurately, and the insertion force exceeds the limit, causing the test to stop and trigger an alarm. The interface testing method of this solution can cover all three situations mentioned above. When the insertion force exceeds the limit, the test can be stopped and an alarm triggered in a timely manner, facilitating adjustments by the operator and restarting the test.

[0060] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An interface testing method, characterized in that, An interface testing device is used to test the interface, the interface testing device comprising: Base (100); A drive unit is mounted on the base (100); An installation component is provided on the drive device. The installation component is used to install the connector assembly (330). The drive device is used to drive the installation component to move the connector assembly (330) forward into the interface assembly (410). A pressure sensor (321) is disposed on the mounting assembly, the pressure sensor (321) being used to detect the pressure applied to the connector assembly (330); The driving device includes: A drive motor (210) is mounted on the base (100); A lead screw (214) is rotatably mounted on the base (100), and the drive motor (210) is used to drive the lead screw (214) to rotate. The transmission nut (220) is threadedly engaged with the transmission lead screw (214), and the transmission nut (220) is fixedly connected to the mounting assembly; The interface testing device further includes a connecting component (310), the drive motor (210), the transmission screw (214) and the transmission nut (220) are disposed on the lower side of the base (100), the mounting component is disposed on the upper side of the base (100), and the connecting component (310) connects the mounting component and the transmission nut (220). The installation components include: The third connector (327) is fixedly connected to the connecting assembly (310); A cantilever assembly (320) is disposed on the third connector (327), the cantilever assembly (320) being used to mount the joint assembly (330). The third connector (327) is provided with a guide post (328), and the cantilever assembly (320) is provided with a linear bearing that slides with the guide post (328); A first connector (322) is disposed on the cantilever assembly (320), a pressure sensor (321) is connected between the first connector (322) and the cantilever assembly (320), and a joint assembly (330) is disposed on the first connector (322). The interface testing method includes the following steps: S100: Collect the pressure B1 from the pressure sensor (321). When B1 and the pressure preset value A1 satisfy A1≥B1, control the drive device to drive the connector assembly (330) to feed towards the interface assembly (410). S200, During the process of the connector assembly (330) moving towards the interface assembly (410), when A1 / k≥B1, the control drive device continuously drives the connector assembly (330) to move towards the interface assembly (410), where k is a constant greater than 1; S300. The test ends when the connector assembly (330) and the interface assembly (410) complete the signal conduction.

2. The interface testing method according to claim 1, characterized in that, In step S200, when A1 / k < B1, the drive device stops running and an alarm signal is issued.

3. The interface testing method according to claim 2, characterized in that, k=150%。 4. The interface testing method according to claim 1, characterized in that, In step S100, when A1 < B1 and C1 ≤ 50%, the drive device is controlled to move the connector assembly (330) towards the interface assembly (410), wherein: 。 5. The interface testing method according to claim 4, characterized in that, In step S100, when A1 < B1 and C1 > 50%, the drive device stops running and an alarm signal is issued.

6. The interface testing method according to claim 1, characterized in that, In step S200, during the process of the connector assembly (330) feeding towards the interface assembly (410), the value of B1 is collected every 0.05s.

7. The interface testing method according to claim 6, characterized in that, In step S100, the value of A1 is 120% of the allowable friction force when the connector assembly (330) is inserted into the interface assembly (410).

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