A TP scribing device for mobile phone testing

Abstract

This utility model relates to a TP scribing device for mobile phone testing, belonging to the field of mobile phone assembly equipment. It includes a bracket, on which a test platform is mounted via an XY-axis displacement mechanism. The upper surface of the test platform is horizontal, forming a test plane. At least one receiving groove is formed on the test plane, and a positioning block is detachably embedded within the receiving groove. The upper surface of the positioning block has a positioning groove whose shape matches the mobile phone to be tested. A mounting plate can also be vertically mounted on the bracket, located above the test platform. Scribing components corresponding to the receiving grooves are mounted on the mounting plate on the receiving plate. This utility model can precisely control the movement trajectory of the test head and maintain constant force during TP scribing testing, avoiding trajectory deviation and force fluctuation problems caused by manual operation, thereby improving the accuracy and reliability of the test.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone assembly equipment, and in particular to a TP scribing device for mobile phone testing. Background Technology

[0002] As a core component of human-computer interaction, the performance and stability of the touch panel (TP) directly determine the user experience and market competitiveness of a mobile phone. The continuity of touch response and the integrity of regional functions on the touch panel surface need to be verified through a line-drawing test simulating real-world usage scenarios. This test requires drawing lines on the TP surface using specific motion trajectories (such as straight lines or rectangles). The test checks for any breaks in touch after drawing, the consistency and stability of the touch signal, the effective response of the entire screen area to touch commands, and the consistency between the touch trajectory and the screen display. These checks determine whether the touch panel meets quality standards. However, current TP scribing tests in the industry are usually performed manually: testers need to hold a tool equipped with a probe made of a specific material (such as a simulated stylus or rubber tip), manually control the scribing trajectory and speed, and observe and record the test results. But manual operation has significant drawbacks: the stability of the tester's hands is greatly affected by physiological fatigue, differences in operating experience, and subjective state (such as the degree of concentration). It is not only difficult to maintain a constant scribing load for a long time, but also impossible to ensure that the scribing trajectory is consistent with the preset path (such as a straight line or a standard rectangular border), which easily leads to problems such as trajectory deviation, corner deviation, or inconsistent scribing force. These operational deviations can directly lead to distorted test results: for example, trajectory deviation may lead to misjudgment of touch failure in the edge area of ​​the touch screen, and fluctuations in force may interfere with the normal recognition and feedback of touch signals, ultimately causing "qualified products to be misjudged as unqualified", which will reduce the accuracy and reliability of the test. Based on this, the present invention provides a TP marking device for mobile phone testing to solve the above problems. Utility Model Content

[0003] Based on this, the present invention provides a TP scribing device for mobile phone testing, including a bracket, on which a test platform is mounted via an XY-axis displacement mechanism. The upper surface of the test platform is horizontal, forming a test plane. At least one receiving groove is formed on the test plane, and a positioning block is detachably embedded in the receiving groove. The upper surface of the positioning block has a positioning groove with a shape matching the mobile phone to be tested. A mounting plate can also be flexibly mounted on the bracket. The mounting plate is located above the test platform, and scribing components corresponding to the receiving grooves are mounted on the mounting plate.

[0004] Furthermore, the bottom end of the receiving groove is provided with a connecting hole that penetrates the test platform, and the bottom end of the connecting hole is connected to a connecting pipe for connecting to a vacuum pump; the positioning block is made of an elastic material, and the bottom of the positioning groove is provided with a through hole that penetrates the positioning block, the through hole and the connecting hole are coaxially arranged, and the diameter of the through hole is not less than the diameter of the connecting hole.

[0005] Furthermore, the marking assembly includes a mounting base mounted on the mounting plate, and a mounting block mounted below the mounting base via an elastic connector, the elastic connector being compressible in the vertical direction, and a test head mounted at the bottom end of the mounting block.

[0006] Furthermore, the mounting base is a vertically arranged cylindrical shape, and the outer side wall of the mounting base is provided with external threads, which are threaded to the threaded mounting holes opened on the mounting plate through the external threads; the elastic connecting member includes a connecting rod that can be slidably inserted into the mounting base, and a cylindrical spring sleeved on the connecting rod, the mounting block is fixedly disposed at the bottom end of the connecting rod, and the upper and lower ends of the cylindrical spring are fixedly connected to the bottom end of the mounting base and the top end of the mounting block, respectively.

[0007] Furthermore, the portion of the mounting base located below the mounting plate is also fitted with a locking nut, which abuts against the lower surface of the mounting plate.

[0008] Furthermore, an enlarged hole is provided on the test plane corresponding to the receiving groove, and the enlarged hole is connected to one side wall of the receiving groove.

[0009] Furthermore, at least four limiting rods are vertically arranged on the upper surface of the mounting plate. The limiting rods are slidably connected to the bracket via linear bearings. A hydraulic cylinder is also provided on the bracket corresponding to the mounting plate. The power output end of the hydraulic cylinder is fixedly connected to the mounting plate to drive the mounting plate to move up and down.

[0010] The principle and effects of this utility model will be further explained below with reference to the above technical solution and the accompanying drawings: This invention, by incorporating an XY-axis displacement mechanism and a scribing assembly, precisely controls the movement trajectory and force of the test head, avoiding trajectory deviation and force fluctuations inherent in manual operation, thus improving the accuracy and reliability of the test. Simultaneously, the connection pipe to the vacuum pump and the positioning block made of elastic material securely fix the phone under test, preventing displacement during testing and further ensuring the accuracy of the test results. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the TP marking device for mobile phone testing as described in an embodiment of the present invention; Figure 2 for Figure 1 A magnified view of a portion of the image; Figure 3 This is a top view of the test plane described in an embodiment of the present invention. Figure 4 This is a top view structural diagram of the positioning block described in an embodiment of the present utility model.

[0012] Attached Figure

[0013] 1-Bracket, 11-Linear bearing, 12-Enlarged hole, 2-XY axis displacement mechanism, 3-Test platform, 31-Accommodation hole, 311-Connecting hole, 4-Mounting plate, 41-Limiting rod, 5-Scrubbing assembly, 51-Mounting base, 52-Connecting rod, 53-Mounting block, 54-Cylindrical spring, 55-Test head, 56-Locking nut, 6-Hydraulic cylinder, 7-Positioning block, 71-Positioning groove, 711-Connecting hole. Detailed Implementation

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments: like Figure 1-4 A TP scribing device for mobile phone testing includes a bracket 1. A test platform 3 is mounted on the bracket 1 via an XY-axis displacement mechanism 2. The upper surface of the test platform 3 is horizontal, forming a test plane. At least one receiving groove is formed on the test plane. A positioning block 7 is detachably embedded in the receiving groove. The upper surface of the positioning block 7 has a positioning groove 71 with a shape matching the mobile phone to be tested. A mounting plate 4 can also be lifted and lowered on the bracket 1. The mounting plate 4 is located above the test platform 3. Scribing components 5 corresponding to the receiving grooves are mounted on the mounting plate 4.

[0015] In this invention, the TP scribing device is used to scribing lines on a mobile phone touchscreen. Specifically, the positioning groove 71 on the positioning block 7 is used to place the mobile phone to be tested. After the mobile phone is placed into the positioning groove 71, since the shape of the positioning groove 71 matches the shape of the mobile phone, the relative position between the mobile phone and the positioning block 7 is fixed. Therefore, after the positioning block 7 is embedded into the receiving groove, the relative position between the mobile phone and the test plane is fixed. Then, the test platform 3 is moved by the XY axis displacement mechanism 2, so that the mobile phone in the receiving groove is located below the corresponding scribing component 5. After the mounting plate 4 is lowered to a preset height, the XY axis displacement mechanism 2 drives the test platform 3 to move along a preset trajectory to complete the test of the mobile phone touchscreen. The scribing trajectory of the scribing component 5 on the mobile phone touchscreen is controlled by the XY axis displacement mechanism 2. Compared with manual scribing, it can greatly improve the accuracy of the scribing trajectory and ensure that the scribing trajectory is consistent with the preset trajectory, thereby achieving the purpose of improving the accuracy and reliability of the test.

[0016] In this invention, the XY axis displacement mechanism 2 can adopt a ball screw structure driven by a servo motor, which can realize high-precision movement of the test platform 3 along the X and Y axes on the horizontal plane.

[0017] In one embodiment, the bottom end of the receiving groove has a connecting hole 311 penetrating the test platform 3, and the bottom end of the connecting hole 311 is connected to a connecting pipe for connecting to a vacuum pump; the positioning block 7 is made of an elastic material, and the bottom of the positioning groove 71 has a through hole 711 penetrating the positioning block 7, the through hole 711 and the connecting hole 311 are coaxially arranged, and the diameter of the through hole 711 is not less than the diameter of the connecting hole 311. Preferably, the positioning block 7 is made of silicone, which has good density and is not prone to excessive deformation or leakage due to pressure difference under negative pressure adsorption environment, thus maintaining a stable adsorption effect for a long time.

[0018] In this embodiment, the connecting pipe at the bottom of the connecting hole 311 is used to connect to the vacuum pump. This allows negative pressure to act on the bottom of the phone through the connecting hole 311 and the connecting hole 711 after the vacuum pump is started. This ensures the phone fits tightly against the inner wall of the positioning groove 71, while the positioning block 7 is adsorbed and fixed within the receiving groove. This achieves dual fixation of the phone and the test platform 3, preventing displacement of the phone relative to the test plane and further improving test accuracy and reliability. The connecting hole 311 is the channel through which the negative pressure generated by the vacuum pump enters the positioning groove 71, and the connecting hole 711 is the channel through which the negative pressure acts on the phone. Ensuring that the diameter of the connecting hole 711 is not smaller than the diameter of the connecting hole 311 prevents the connecting hole 711 from becoming a bottleneck for negative pressure conduction, ensuring that the negative pressure generated by the vacuum pump can pass unimpeded through the connecting hole 311 into the connecting hole 711, guaranteeing stable transmission of the adsorption force.

[0019] In one embodiment, the marking assembly 5 includes a mounting base 51 mounted on the mounting plate 4, and a mounting block 53 mounted below the mounting base 51 via an elastic connector, the elastic connector being compressible in the vertical direction, and a test head 55 mounted at the bottom end of the mounting block 53.

[0020] In this embodiment, after the mounting plate 4 is lowered to the preset position, the elastic compression member is compressed. Therefore, during the subsequent scribing test, the elastic connector will generate a constant elastic force, that is, provide a constant pressure to the scribing assembly 5, thereby maintaining a constant scribing load during the scribing test and avoiding interference with the normal recognition and feedback of the touch signal due to fluctuations in the scribing load. The test head 55 uses a rubber head. If the touchscreen under test is a capacitive screen, a conductive rubber head is selected; if the touchscreen under test is a resistive screen, a regular insulating rubber head is selected.

[0021] In one embodiment, the mounting base 51 is a vertically arranged cylindrical shape, and the outer side wall of the mounting base 51 is provided with external threads, which are threaded to the threaded mounting holes opened on the mounting plate 4 through the external threads; the elastic connecting member includes a connecting rod 52 that can be slidably inserted into the mounting base 51, and a cylindrical spring 54 sleeved on the connecting rod 52; the mounting block 53 is fixedly disposed at the bottom end of the connecting rod 52; and the upper and lower ends of the cylindrical spring 54 are fixedly connected to the bottom end of the mounting base 51 and the top end of the mounting block 53, respectively.

[0022] In this embodiment, the cylindrical spring 54 abuts between the mounting base 51 and the mounting block 53. During the scribing test, after the mounting plate 4 moves down to the preset position, the cylindrical spring 54 will be compressed and its compression amount will remain unchanged, thereby providing a constant scribing load for the scribing assembly 5.

[0023] Furthermore, in this embodiment, the mounting base 51 is threadedly connected to the threaded mounting hole on the mounting plate 4 via its external thread. Therefore, by rotating the mounting base 51 to change its length extending out of the mounting plate 4, the initial height of the test head 55 can be precisely adjusted. When the mounting plate 4 moves down to the preset position, the compression of the cylindrical spring 54 changes accordingly, thereby achieving stepless adjustment of the scribing load. This allows the scribing test device to adapt to the scribing test requirements of different mobile phone TP models, thus achieving the purpose of expanding the applicability of the scribing device.

[0024] In addition, in this embodiment, preferably, the top of the mounting base 51 is provided with a clamping section, the cross-section of which is a regular hexagon, so as to facilitate the use of a wrench to rotate the mounting base 51.

[0025] In one embodiment, the portion of the mounting base 51 located below the mounting plate 4 is further fitted with a locking nut 56, which abuts against the lower surface of the mounting plate 4.

[0026] In this embodiment, the locking nut 56 installed on the mounting base 51 is used to fix the relative position of the mounting base 51 and the mounting plate 4. Specifically, by pressing the locking nut 56 against the lower surface of the mounting plate 4, the mounting base 51 can be prevented from rotating relative to the threaded mounting hole, thereby fixing the relative position of the mounting base 51 and the mounting plate 4.

[0027] In one embodiment, an enlarged hole 12 is also provided on the test plane corresponding to the receiving groove, and the enlarged hole 12 is connected to one side wall of the receiving groove.

[0028] In this embodiment, the widened hole 12 is connected to one side wall of the receiving groove. That is, the widened hole 12 provides additional operating space for the placement and removal of the positioning block 7. The operator can easily pick up the positioning block 7 through the widened hole 12, which can realize the rapid replacement of the mobile phone during the test, thereby improving the test efficiency.

[0029] In one embodiment, at least four limiting rods 41 are vertically arranged on the upper surface of the mounting plate 4. The limiting rods 41 are slidably connected to the bracket 1 via linear bearings 11. A hydraulic cylinder 6 is also provided on the bracket 1 corresponding to the mounting plate 4. The power output end of the hydraulic cylinder 6 is fixedly connected to the mounting plate 4 to drive the mounting plate 4 to move up and down.

[0030] In this embodiment, the hydraulic cylinder 6 is used to drive the mounting plate 4 to move up and down, and the cooperation structure between the limiting rod 41 and the linear bearing 11 is used to ensure that the mounting plate 4 slides strictly in the up and down direction.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A TP scribe device for mobile phone testing, characterized in that, The device includes a bracket on which a test platform is mounted via an XY-axis displacement mechanism. The upper surface of the test platform is horizontal, forming a test plane. At least one receiving groove is formed on the test plane, and a positioning block is detachably embedded in the receiving groove. The upper surface of the positioning block has a positioning groove with a shape matching the mobile phone to be tested. A mounting plate can also be raised and lowered on the bracket. The mounting plate is located above the test platform, and scribing components corresponding to the receiving grooves are mounted on the mounting plate.

2. The TP scribe device for testing of mobile phones according to claim 1, characterized in that, The bottom of the receiving groove is provided with a connecting hole that penetrates the test platform, and the bottom of the connecting hole is connected to a connecting pipe for connecting to a vacuum pump; the positioning block is made of elastic material, and the bottom of the positioning groove is provided with a through hole that penetrates the positioning block. The through hole and the connecting hole are arranged on the same axis, and the diameter of the through hole is not less than the diameter of the connecting hole.

3. The TP scribe device for testing a mobile phone according to claim 1 or 2, wherein, The marking assembly includes a mounting base mounted on the mounting plate and a mounting block mounted below the mounting base via an elastic connector, the elastic connector being compressible in the vertical direction, and a test head mounted at the bottom end of the mounting block.

4. The TP scribe device for testing a mobile phone according to claim 3, wherein, The mounting base is a vertically arranged cylindrical shape, and the outer side wall of the mounting base is provided with external threads, which are threaded to the threaded mounting holes opened on the mounting plate through the external threads; the elastic connecting member includes a connecting rod that can be slidably inserted into the mounting base, and a cylindrical spring sleeved on the connecting rod; the mounting block is fixedly disposed at the bottom end of the connecting rod, and the upper and lower ends of the cylindrical spring are fixedly connected to the bottom end of the mounting base and the top end of the mounting block, respectively.

5. The TP scribe device for testing a mobile phone according to claim 4, wherein, The portion of the mounting base located below the mounting plate is also fitted with a locking nut, which abuts against the lower surface of the mounting plate.

6. The TP scribe device for testing a mobile phone according to claim 1 or 2, wherein, An enlarged hole is also provided on the test plane corresponding to the receiving groove, and the enlarged hole is connected to one side wall of the receiving groove.

7. The TP scribe device for testing of mobile phones according to claim 1, wherein, At least four limiting rods are vertically arranged on the upper surface of the mounting plate. The limiting rods are slidably connected to the bracket via linear bearings. A hydraulic cylinder is also provided on the bracket corresponding to the mounting plate. The power output end of the hydraulic cylinder is fixedly connected to the mounting plate to drive the mounting plate to move up and down.

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