Mobile phone key module pressure test equipment

Abstract

The invention aims to provide the mobile phone key module pressure test equipment which can detect the performance of touch operation and pressure operation of mobile phone keys, is high in test efficiency and can be compatible with automatic test. The device comprises a rack and a plurality of groups of test modules arranged on the rack, each test module comprises a pressing test mechanism and a product carrier, the test module further comprises a carrier transportation mechanism and a jacking mechanism, and the carrier transportation mechanism and the jacking mechanism are matched to send the product carrier to a working position of the pressing test mechanism; the downward pressing testing mechanism comprises an XZ two-axis moving mechanism and a testing pressing head, the XZ two-axis moving mechanism drives the testing pressing head to be matched with the product carrier, the product carrier is provided with a limiting assembly matched with a product, the rack is provided with an unlocking push block, and when the product carrier is located at the feeding end, the unlocking push block is matched with the limiting assembly for unlocking. The key testing method and device are applied to the technical field of key testing.

Description

Technical Field

[0001] The present invention is applied to the technical field of keystroke testing, and particularly relates to a mobile phone keystroke module pressure testing device. Background Art

[0002] With the advancement of smartphone functionality, in addition to conventional touchscreen testing, additional camera control buttons are being added for shooting needs. These buttons are typically located on the side of the device for easy handheld operation. To meet the control requirements of modern smartphones, these buttons are often compatible with both touch and pressure controls, enabling operation of more camera software functions, such as adjusting various parameters and focusing. To ensure that these buttons function properly, they must be tested before assembly to ensure performance.

[0003] Traditional button test modules are usually fixed with a carrier-type pressure arm structure. This structure fixes the product on the carrier by manually pressing the pressure arm. It requires special loading and unloading stations, is not very friendly to automation, and cannot adapt to the needs of rapid production.

[0004] Therefore, a mobile phone key module pressure testing device is needed that can detect the touch operation and pressure operation of mobile phone keys, has high test efficiency and is compatible with automated testing. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a mobile phone key module pressure testing device that can detect the touch operation and pressure operation of mobile phone keys, has high test efficiency and is compatible with automated testing.

[0006] The technical solution adopted by the present invention is: the present invention includes a frame and several groups of test modules arranged on the frame, the test modules include a downward test mechanism and a product carrier, the test modules also include a carrier transport mechanism and a lifting mechanism, the carrier transport mechanism cooperates with the lifting mechanism to send the product carrier to the test position of the downward test mechanism, the downward test mechanism includes an XZ two-axis moving mechanism and a test press head, the XZ two-axis moving mechanism drives the test press head to cooperate with the product carrier, the product carrier is provided with a limit assembly that cooperates with the product, the frame is provided with an unlocking push block, and when the product carrier is located at the loading end, the unlocking push block cooperates with the limit assembly to unlock.

[0007] It can be seen from the above scheme that by adopting a self-locking product carrier and cooperating with the unlocking push block set on the frame, the product positioning and clamping can be carried out quickly and conveniently, effectively improving production efficiency. At the same time, the scheme can cooperate with automated equipment such as robots to automatically take and place materials to achieve efficient testing. The downward pressure test mechanism is used to apply pressing forces of different strengths to the product to be tested, and the lifting mechanism cooperates with the product carrier to realize power-on and signal feedback of the product to be tested. The XZ two-axis moving mechanism is used to drive the test pressing head to achieve different pressures to trigger the feedback of different pressing stages of the button structure to be tested, and the button function is triggered by movement in the X-axis direction. This achieves efficient detection of mobile phone camera button modules and compatibility with automatic voice processing. In addition, by setting up multiple groups of the test modules, it is possible to simultaneously test multiple products.

[0008] A preferred solution is that the downward pressure test mechanism also includes a mounting frame, the XZ two-axis moving mechanism includes an X-axis moving mechanism, a movable frame and a Z-axis downward pressure mechanism, the X-axis moving mechanism is arranged on the mounting frame, the movable frame slides on the mounting frame and is connected to the movable end of the X-axis moving mechanism, the Z-axis downward pressure mechanism is arranged on the movable frame, and the test pressing head is connected to the movable end of the Z-axis downward pressure mechanism.

[0009] A preferred solution is that the test pressing head includes a pressing portion and a pressure sensor, a flexible pressing block is provided at the end of the pressing portion, and the pressing portion is connected to the movable end of the Z-axis pressing mechanism through the pressure sensor.

[0010] A preferred solution is that the carrier transport mechanism includes a Y-axis moving mechanism and a sliding plate, the sliding plate is connected to the movable end of the Y-axis moving mechanism, a number of carrier limit blocks and a number of first positioning pins are provided on the sliding plate, the outer edge of the product carrier is limited by the carrier limit block, and the product carrier is provided with a positioning hole that is compatible with the first positioning pin.

[0011] A preferred solution is that the jacking mechanism includes a jacking positioning plate and a jacking cylinder, the jacking positioning plate is arranged on the movable end of the jacking cylinder, the jacking positioning plate is provided with a magnetic positioning column that cooperates with the product carrier, and the jacking positioning plate is also provided with a power communication connector that cooperates with the conductive component of the product carrier.

[0012] A preferred solution is that a pressure plate is further provided on the frame, the pressure plate is located above the lifting mechanism and cooperates with the product carrier to limit the position, and a second positioning pin that cooperates with the positioning hole is correspondingly provided at the bottom of the pressure plate.

[0013] A preferred solution is that a support plate is provided at the movable end of the jacking cylinder, and the jacking positioning plate is floated on the support plate through a floating structure.

[0014] A preferred solution is that the product carrier is provided with a product limiting groove that is compatible with the product to be tested, and the product limiting groove is provided with a third positioning pin that is compatible with the screw hole of the product to be tested. The limiting assembly includes a rotating pressure block rotatably arranged on one side of the product limiting groove, and the product carrier is provided with a rotating spring that cooperates with the rotating pressure block. The rotating pressure block is limitedly matched with the upper surface of the product to be tested, and the rotating pressure block is provided with an extension end, and the unlocking push block pushes the extension end to rotate the rotating pressure block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a schematic diagram of the three-dimensional structure of the test module; Figure 3 is a schematic diagram of the three-dimensional structure of the carrier transport mechanism; Figure 4 It is a structural diagram of the cooperation between the downward pressure testing mechanism and the jacking mechanism; Figure 5 is a schematic diagram of the three-dimensional structure of the downward pressure testing mechanism; Figure 6 is a structural diagram of the cooperation between the jacking mechanism and the product carrier; Figure 7 is a schematic diagram of the three-dimensional structure of the product carrier; Figure 8 is a schematic cross-sectional structural diagram of the product carrier; Figure 9 is a schematic diagram of the three-dimensional structure of the jacking mechanism; Figure 10 is a structural diagram of the cooperation between the jacking mechanism and the product carrier; Figure 11 It is a structural diagram of the cooperation between the product carrier and the pressure plate. DETAILED DESCRIPTION

[0016] like Figures 1 to 11As shown, in this embodiment, the present invention includes a frame 1 and several groups of test modules arranged in parallel on the frame 1, each group of the test modules realizes product testing of one channel, the test module includes a downward pressure test mechanism and a product carrier 2, the test module also includes a carrier transport mechanism 3 and a lifting mechanism 4, the carrier transport mechanism 3 cooperates with the lifting mechanism 4 to send the product carrier 2 to the test position of the downward pressure test mechanism, the downward pressure test mechanism includes an XZ two-axis moving mechanism 5 and a test pressing head 6, the XZ two-axis moving mechanism 5 drives the test pressing head 6 to cooperate with the product carrier 2, the product carrier 2 is provided with a limit component 21 that cooperates with the product, and the frame 1 is provided with an unlocking push block 11, when the product carrier 2 is located at the loading end, the unlocking push block 11 cooperates with the limit component 21 to unlock. The pressure test mechanism is used to perform a pressure test on the button product under test on the product carrier 2 and obtain feedback signals. By applying different pressures and performing X-axis movement, it simulates the effect of actual button operation. The carrier transport mechanism is used to transport the product carrier 2 to the bottom of the pressure test mechanism. The lifting mechanism 4 is used to lift the product carrier 2 to the testing position and limit the position, ensuring that the product carrier 2 is stably supported during testing. The limit assembly 21 is used to limit the position of the product under test and cooperates with the unlocking push block 11 to achieve automatic locking and unlocking, reducing manual labor intensity and adapting to automated testing.

[0017] In this embodiment, the downward pressure test mechanism also includes a mounting frame 12, and the XZ two-axis moving mechanism 5 includes an X-axis moving mechanism 51, a movable frame 52, and a Z-axis downward pressure mechanism 53. The X-axis moving mechanism 51 is arranged on the mounting frame 12, and the X-axis moving mechanism 51 includes a first drive motor and a screw assembly. The movable frame 52 is slidably fitted on the mounting frame 12 and is connected to the movable end of the X-axis moving mechanism 51 through a linear guide rail. The Z-axis downward pressure mechanism 53 is arranged on the movable frame 52, and the Z-axis downward pressure mechanism 53 includes a second drive motor and a linear slide assembly. The fixed end of the linear slide assembly is fixed to the movable frame 52, and the movable end of the linear slide assembly is connected to the movable end of the second drive motor. The movable end of the linear slide assembly is provided with a movable block 54, and the Z-axis downward pressure mechanism 53 also includes a grating reader 55 that cooperates with the movable block 54. The test pressing head 6 is connected to the movable block 54. The X-axis movement mechanism 51 drives the movable frame 52 to move along the X-axis of the product carrier 2, thereby realizing the simulated sliding touch function. The Z-axis pressing mechanism 53 controls the pressing force applied to the test pressing head 6 by adjusting the output torque of the second drive motor. The grating reader 55 and the movable block 54 detect the downward movement distance of the test pressing head 6. When the set threshold is exceeded, the second drive motor stops output, thereby protecting the product under test.

[0018] In this embodiment, the test pressing head 6 includes a pressing portion 61 and a pressure sensor 62. A flexible pressure block 63 is provided at the end of the pressing portion 61. The pressing portion 61 is connected to the active end of the Z-axis pressing mechanism 53 via the pressure sensor 62. The provision of the flexible pressure block 63 enables triggering of the touch function and protects the product under test from damage during testing. During testing, the pressure sensor 62 provides feedback on the current pressure value, which, in conjunction with the second drive motor, achieves precise pressure output, meeting the multi-stage key triggering requirements of the key structure under test and enabling the collection of corresponding feedback signals.

[0019] In this embodiment, the carrier transport mechanism 3 includes a Y-axis moving mechanism 31 and a sliding plate 32. The sliding plate 32 is connected to the movable end of the Y-axis moving mechanism 31 and slides on the frame 1 via a linear guide. The sliding plate 32 is provided with a plurality of carrier stoppers 33 and a plurality of first positioning pins 34. The outer edge of the product carrier 2 is restrained by the carrier stoppers 33. The product carrier 2 is provided with positioning holes 22 that are compatible with the first positioning pins 34. Every four carrier stoppers 33 limit the position of one product carrier 2, while the first positioning pins 34 achieve high-precision positioning of the product carrier 2. The carrier transport mechanism 3 also includes a plurality of through-beam sensors 35 disposed on both sides of the frame 1. A gap is provided between the two carrier limit blocks 33 along the length of the Y-axis moving mechanism 31, which serves as a detection channel. The through-beam sensors 35 detect through the detection channel whether all test modules in the same row on the sliding plate 32 have product carriers 2 placed thereon. The carrier transport mechanism 3 also includes an in-place sensor 36 disposed at the loading position. The sliding plate 32 is provided with a corresponding opening 37 that cooperates with the lifting mechanism 4. The opening 37 is used for the lifting mechanism 4 to lift the product carrier 2 to the testing position. The in-place sensor 36 detects through the opening 37 whether a product carrier 2 is placed in the current channel of the sliding plate 32. The through-beam sensors 35 and the in-place sensors 36 ensure the in-place status of the product carrier 2, thereby improving detection effectiveness.

[0020] In this embodiment, the lifting mechanism 4 includes a lifting positioning plate 41 and a lifting cylinder 42. The lifting positioning plate 41 is arranged on the movable end of the lifting cylinder 42. The lifting positioning plate 41 is provided with four groups of magnetic positioning columns 43 that cooperate with the product carrier 2. The top of the magnetic positioning column 43 is provided with a magnet, and the product carrier 2 is correspondingly provided with a magnet or ferromagnetic magnet. When the lifting cylinder 42 rises, the magnetic positioning column 43 is fixed to the product carrier 2 by magnetic force. Preliminary positioning; the lifting and positioning plate 41 is also provided with an electric communication connector 44 that cooperates with the conductive component of the product carrier 2. The conductive component includes a probe component that cooperates with the product to be tested and a conductive connector that cooperates with the electric communication connector 44. When the key product to be tested is limited on the product carrier 2, the conductive contact of the key product to be tested contacts the probe component to realize the transmission of electrical signals, which are then transmitted from the probe component to the conductive connector. The electric communication connector 44 realizes power supply and collects the electrical signals fed back by the conductive connector. The frame 1 is also provided with a pressure plate 13. The pressure plate 13 is located above the lifting mechanism 4 and is limited to cooperate with the product carrier 2. The bottom of the pressure plate 13 is provided with a second positioning pin 14 that cooperates with the positioning hole 22. By providing the pressure plate 13 and the second positioning pin 14 and cooperating with the lifting mechanism 4, the product carrier 2 can be accurately positioned, thereby ensuring the accuracy and reliability of the test.

[0021] In this embodiment, the movable end of the lifting cylinder 42 is provided with a support plate 45, and the lifting positioning plate 41 is floated on the support plate 45 via a floating structure, which is a spring. This floating structure provides a buffer when the magnetic positioning column 43 contacts the product carrier 2, thereby reducing the bounce of the product carrier 2 and ensuring product positioning accuracy.

[0022] In this embodiment, the product carrier 2 is provided with a product retaining groove 23 adapted for the product to be tested. The product retaining groove 23 is provided with a third positioning pin 24 adapted for the screw hole of the product to be tested, thereby achieving precise positioning with the hole position on the structure of the product to be tested. The retaining assembly 21 includes a rotating pressure block 25 rotatably arranged on one side of the product retaining groove 23. The product carrier 2 is provided with a rotating spring that cooperates with the rotating pressure block 25. The rotating pressure block 25 is limitedly engaged with the upper surface of the product to be tested and is provided with an extension end 26. The unlocking push block 11 pushes the extension end 26, causing the rotating pressure block 25 to rotate, overcoming the elastic force of the rotating spring. The rotating spring drives the rotating pressure block 25 to automatically press and position the product to be tested. The unlocking push block 11 cooperates with the unlocking push block 11 to automatically release the limit at the loading end, realizing automated product loading and unloading, effectively improving production efficiency. The end of the unlocking push rod 11 is also rotatably provided with a pushing roller, thereby achieving smoother unlocking.

[0023] Working principle of the present invention: During loading, the product carrier 2 of each test channel is positioned at the loading end. The unlocking push block 11 then contacts the extension end 26, driving it to overcome the elastic force of the rotation spring, causing the rotating pressure block 25 to clear the product retaining groove 23. The automated equipment then loads the product to be tested, positioning it within the product retaining groove 23. As the Y-axis movement mechanism 31 drives the sliding plate 32 toward the lifting mechanism 4, the extension end 26 gradually disengages from the unlocking push block 11, and the rotating pressure block 25, under the action of the rotation spring, automatically presses the product to be tested.

[0024] After the sliding plate 32 moves to the top of the lifting mechanism 4 and is positioned, the lifting cylinder 42 drives the lifting positioning plate 41 to rise, and the magnetic positioning column 43 is magnetically positioned with the structure on the product carrier 2. At the same time, the power-on communication connector 44 connects with the conductive component of the product carrier 2. The lifting cylinder 42 gradually drives the product carrier 2 to separate from the first positioning pin 34, then connects with the second positioning pin 14 and engages with the pressure plate 13 to reach the testing position.

[0025] After reaching the test position, the Z-axis pressing mechanism 53 drives the test pressing head 6 downward and into contact with the product under test. The pressure sensor 62 collects the pressure feedback from the product under test. The Z-axis pressing mechanism 53 controls the output torque to apply different pressing forces to the product under test, thereby detecting the electrical signal feedback from the product under test under different pressing forces, thereby realizing the performance of the segmented pressing function of the button. The X-axis moving mechanism 51 also detects the sliding touch function under a fixed force.

[0026] After the test is completed, the downward pressure test mechanism, the lifting mechanism 4 and the carrier transport mechanism 3 are reset in sequence. When the product carrier 2 moves to the loading position, the unlocking push block 11 pushes the extension end 26 to make the rotating pressure block 25 overcome the elastic force and rotate, thereby unlocking the product, and the loading and unloading of the product is realized by the automated equipment.

[0027] Although the embodiments of the present invention are described with practical solutions, they do not limit the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A mobile phone key module pressure testing device, comprising a frame (1) and a plurality of test modules arranged on the frame (1), wherein the test modules include a downward pressure testing mechanism and a product carrier (2), and is characterized in that: The test module also includes a carrier transport mechanism (3) and a lifting mechanism (4). The carrier transport mechanism (3) cooperates with the lifting mechanism (4) to deliver the product carrier (2) to the working position of the downward pressure test mechanism. The downward pressure test mechanism includes an XZ two-axis moving mechanism (5) and a test pressing head (6). The XZ two-axis moving mechanism (5) drives the test pressing head (6) to cooperate with the product carrier (2). The product carrier (2) is provided with a limit component (21) that cooperates with the product. The frame (1) is provided with an unlocking push block (11). When the product carrier (2) is located at the loading end, the unlocking push block (11) cooperates with the limit component (21) to unlock.

2. The mobile phone key module pressure testing device according to claim 1, characterized in that: The press-down test mechanism further includes a mounting frame (12), the XZ two-axis moving mechanism (5) includes an X-axis moving mechanism (51), a movable frame (52) and a Z-axis press-down mechanism (53), the X-axis moving mechanism (51) is arranged on the mounting frame (12), the movable frame (52) is slidably fitted on the mounting frame (12) and is connected to the movable end of the X-axis moving mechanism (51), the Z-axis press-down mechanism (53) is arranged on the movable frame (52), and the test pressing head (6) is connected to the movable end of the Z-axis press-down mechanism (53).

3. The mobile phone key module pressure testing device according to claim 2, characterized in that: The test pressing head (6) comprises a pressing portion (61) and a pressure sensor (62), a flexible pressing block (63) is provided at the end of the pressing portion (61), and the pressing portion (61) is connected to the movable end of the Z-axis pressing mechanism (53) via the pressure sensor (62).

4. The mobile phone key module pressure testing device according to claim 1, characterized in that: The carrier transport mechanism (3) includes a Y-axis moving mechanism (31) and a sliding plate (32), wherein the sliding plate (32) is connected to the movable end of the Y-axis moving mechanism (31), and a plurality of carrier limit blocks (33) and a plurality of first positioning pins (34) are provided on the sliding plate (32). The outer edge of the product carrier (2) is limitedly matched with the carrier limit blocks (33), and the product carrier (2) is provided with positioning holes (22) adapted to the first positioning pins (34).

5. The mobile phone key module pressure testing device according to claim 4, characterized in that: The lifting mechanism (4) includes a lifting positioning plate (41) and a lifting cylinder (42), wherein the lifting positioning plate (41) is arranged on the movable end of the lifting cylinder (42), and the lifting positioning plate (41) is provided with a magnetic positioning column (43) that cooperates with the product carrier (2), and the lifting positioning plate (41) is also provided with a power communication connector (44) that cooperates with the conductive component of the product carrier (2).

6. The mobile phone key module pressure testing device according to claim 5, characterized in that: The frame (1) is further provided with a pressing plate (13), which is located above the lifting mechanism (4) and is limitedly engaged with the product carrier (2), and a second positioning pin (14) is correspondingly provided at the bottom of the pressing plate (13) and is engaged with the positioning hole (22).

7. The mobile phone key module pressure testing device according to claim 5, characterized in that: The movable end of the lifting cylinder (42) is provided with a support plate (45), and the lifting positioning plate (41) is floatingly provided on the support plate (45) via a floating structure.

8. The mobile phone key module pressure testing device according to claim 1, characterized in that: The product carrier (2) is provided with a product limiting groove (23) adapted to the product to be tested, and the product limiting groove (23) is provided with a third positioning pin (24) adapted to the screw hole position of the product to be tested. The limiting assembly (21) includes a rotating pressure block (25) rotatably arranged on one side of the product limiting groove (23). The product carrier (2) is provided with a rotating spring matched with the rotating pressure block (25). The rotating pressure block (25) is limitedly matched with the upper surface of the product to be tested. The rotating pressure block (25) is provided with an extension end (26). The unlocking push block (11) pushes the extension end (26) to rotate the rotating pressure block (25).

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