A kind of TP adheres automatic drawing test device

Abstract

The application relates to the technical field of display device testing, and specifically discloses a TP attaching automatic pulling test device, which comprises a rack, a carrier mechanism and a pulling detection module. The pulling detection module comprises a vertical driving unit and a pulling execution unit for adsorbing the upper surface of a touch panel of a screen-attached product and performing a pulling action. The pulling detection module further comprises a probe detection unit, which comprises a probe mounting plate capable of independent lifting and a plurality of distributed detection components. Each distributed detection component comprises a probe fixing block, a contact probe, a PCB board and a displacement transmission rod. During the pulling process, a high-precision displacement sensor detects the elastic sliding displacement of the displacement transmission rod to obtain the displacement change of the contact probe. The application realizes automatic and high-precision detection of the screen-attached quality of a flat panel through the cooperation of upper and lower adsorption fixation and multi-point contact type displacement sensing, and solves the technical problem that the existing equipment cannot accurately position the local pasting loosening defects of the touch panel.

Description

Technical Field

[0001] This application relates to the field of display device testing technology, and in particular to an automatic pull-out test device for TP (touch panel) attachment. Background Technology

[0002] In the manufacturing process of flat panel display devices such as mobile phones and tablets, the adhesion quality of the touch panel (TP) to the screen directly affects the product's performance and reliability. Traditional inspection methods mainly rely on manual operation. Operators use vacuum suction cups to pick up the screen and then manually pull the TP with a horizontal pulling force, relying on visual inspection or touch to determine if there are any uneven or loose adhesions. This method is not only inefficient but also significantly affected by human factors. Especially within the detection range of micron-level displacement, manual judgment is prone to missed detections and misjudgments, resulting in defective products being released and affecting the overall product yield.

[0003] With the development of automation and precision testing technologies, some automated or semi-automated attachment testing equipment has emerged in the industry, most of which use image recognition and other methods for indirect judgment. However, existing equipment still has shortcomings in detecting local loosening and micro-displacement of TP attachments. For example, image detection has difficulty identifying minute displacements and cannot accurately reflect the actual state of the attachment interface, resulting in incomplete and unreliable test results. Summary of the Invention

[0004] This application provides an automatic pull-out testing device for TP (touch panel) adhesion, which solves the technical problem that existing equipment cannot accurately locate localized loose adhesion defects in touch panels, and realizes automated and high-precision detection of the adhesion quality of tablet screens.

[0005] This application provides an automatic pull-out testing device for touch panel (TP) attachment, comprising: a frame; a carrier mechanism disposed on the frame for positioning and fixing the TP product to be tested; and a pull-out detection module disposed above the carrier mechanism. The pull-out detection module includes: a vertical drive unit fixedly mounted on the frame; a pull-out execution unit connected to the output end of the vertical drive unit and driven by the vertical drive unit to perform lifting and lowering movements; the pull-out execution unit is used to adsorb the upper surface of the touch panel of the TP product and perform a pull-out action; and a probe detection unit movably disposed on the frame. The probe detection unit includes a probe mounting plate that can be independently raised and lowered relative to the pull-out execution unit, and multiple distributed detection components arranged around the probe mounting plate. Each distributed detection component includes: a probe fixing block. The following components are included: a contact probe fixed to the probe mounting plate; a contact probe fixed to the probe fixing block, with its lower end for contacting the upper surface of the touch panel of the screen-attached product; a PCB board fixed to the top of the contact probe; a high-precision displacement sensor fixedly mounted on the pull-out execution unit; and a displacement transmission rod, with its lower end for contacting the upper surface of the PCB board and its upper end connected to the detection end of the high-precision displacement sensor in an axially elastic sliding manner. When the probe mounting plate descends to make the contact probe contact the product surface, the continued descent of the probe mounting plate forces the displacement transmission rod to produce an axial elastic sliding displacement relative to the high-precision displacement sensor. During the pull-out process, the high-precision displacement sensor detects the elastic sliding displacement of the displacement transmission rod to obtain the displacement change of the contact probe.

[0006] Furthermore, the pulling execution unit includes a tension sensor, a pulling cylinder connected to the tension sensor, and an upper vacuum suction cup connected to the piston rod of the pulling cylinder. The upper vacuum suction cup is used to adsorb the upper surface of the touch panel of the screen-attached product after descent.

[0007] Furthermore, the vertical drive unit includes: a tension mounting plate, parallel to and above the probe mounting plate; a drive assembly, mounted on the frame, the output end of the drive assembly being connected to the tension mounting plate for driving the tension mounting plate to perform lifting and lowering movements; wherein, the tension sensor is fixedly mounted on the tension mounting plate.

[0008] Furthermore, it also includes a bottom fixing module disposed in the carrier mechanism; the bottom fixing module includes: a lifting drive component, installed in the carrier mechanism and located below the screen-attached product; a fixed suction cup base, connected to the output end of the lifting drive component, and driven to rise and fall by the lifting drive component; a lower vacuum suction cup, disposed on the fixed suction cup base and connected to the vacuum system, for adsorbing and fixing the lower bottom surface of the screen-attached product; wherein, after the lower vacuum suction cup rises, it contacts and adsorbs the lower surface of the screen-attached product.

[0009] Furthermore, the probe detection unit also includes a probe drive cylinder for driving the probe mounting plate to rise and fall.

[0010] Furthermore, it also includes a defective product processing module; the defective product processing module includes: a defective product clamping unit, disposed on the unloading station side of the carrier mechanism, for clamping the screen-mounted product that is determined to be defective; a defective product transfer driving unit, connected to the defective product clamping unit, for driving the defective product clamping unit to move between the unloading station and a defective product return line; and a defective product return line, for receiving and conveying the defective products released by the defective product clamping unit.

[0011] Furthermore, the defective product clamping unit includes a defective product lifting cylinder for clamping the screen-attached product and driving the clamping teeth to move up and down.

[0012] Furthermore, the defective product transfer drive unit includes a defective product transfer bracket spanning the defective product return line and above the carrier mechanism, a defective product lateral transfer cylinder mounted on the defective product transfer bracket, and a defective product clamping unit mounted on the defective product lateral transfer cylinder.

[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages: By setting up an independently height-adjustable probe mounting plate and multiple distributed detection components on it, synchronous and real-time displacement monitoring of multiple key locations on the touch panel surface can be performed, thereby enabling the identification and location of localized bonding defects. The structure, which uses a displacement transmission rod to elastically slide between the high-precision displacement sensor and the PCB board at the tip of the contact probe, ensures reliable contact and pre-tightening between the probe and the product surface, while achieving high-fidelity, direct transmission and measurement of micron-level displacement, thus improving the accuracy and reliability of the inspection. This achieves fully automated and quantitative pull-out inspection of the bonding quality of touch panels in flat panel products, significantly improving inspection efficiency and consistency, and avoiding human error. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of the automatic pull-out detection device for flat panel screen bonding in the embodiments of this application; Figure 2 for Figure 1 A schematic diagram of the middle part of the structure, mainly illustrating the construction of the pull-out detection module; Figure 3 for Figure 2 A schematic diagram of the middle section, mainly illustrating the construction of the pulling execution unit; Figure 4 for Figure 3 A schematic diagram of the middle part of the structure, mainly illustrating the construction of the probe detection unit; Figure 5 for Figure 3 The schematic diagram of the middle part mainly illustrates the construction of the distributed detection component; Figure 6 for Figure 3 A schematic diagram of the middle section, mainly illustrating the construction of the bottom fixing module; Figure 7 for Figure 3 A schematic diagram of the middle section, mainly illustrating the structure of the defective product handling module; In the diagram: 1. Frame; 2. Carrier mechanism; 100. Screen-mounted product; 3. Pull-out detection module; 31. Vertical drive unit; 32. Pull-out execution unit; 33. Probe detection unit; 331. Probe mounting plate; 332. Distributed detection component; 3321. Probe fixing block; 3322. Contact probe; 3323. PCB board; 3324. High-precision displacement sensor; 3325. Displacement transmission rod; 333. Probe drive cylinder; 334. Intermediate support frame; 321. Pull-out... 322 Force sensor; 323 Pulling cylinder; 324 Upper vacuum suction cup; 315 Pulling mounting plate; 316 Drive assembly; 4. Bottom fixing module; 41. Lifting drive component; 42. Fixed suction cup seat; 43. Lower vacuum suction cup; 5. Defective product handling module; 51. Defective product clamping unit; 52. Defective product transfer drive unit; 53. Defective product return line; 511. Gripper; 512. Defective product lifting cylinder; 521. Defective product transfer bracket; 522. Defective product lateral transfer cylinder. Detailed Implementation

[0015] To better understand the technical solution of this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Reference Figures 1 to 7 An automatic pull-out testing device for TP (Potentially Attached Surface Mount) bonding includes a frame 1, a carrier mechanism 2, a pull-out detection module 3, a bottom fixing module 4, and a defective product handling module 5.

[0017] Reference Figure 1The frame 1, serving as the supporting structure for the entire device, is constructed from aluminum profiles and steel plates, providing a stable installation foundation for other functional modules. A carrier system is mounted on the frame 1, consisting of three independently controlled and sequentially connected carrier mechanisms 2. These three carrier mechanisms 2 correspond to the feeding and barcode scanning station, the pull-out inspection station, and the defective product handling station, respectively, enabling automatic transfer and processing of products between the three processes. The carrier mechanism 2 at the feeding and barcode scanning station is located at the beginning of the production line. A scanner is installed above the station to automatically read the barcode or QR code during product transport, completing information binding. This station connects to the conveyor belt of the pull-out inspection station at its end. The carrier mechanism 2 at the pull-out inspection station is located in the middle of the production line and is the core inspection area. The carrier mechanism 2 at the defective product handling station is located at the end of the production line. This station is responsible for receiving products that have completed inspection. If the product is good, it can continue to be conveyed to the unloading area. If it is defective, the defective product handling module 5 is triggered by the positioning sensor to remove the product from the conveyor belt and place it into the defective product return line. The three carrier mechanisms 2 are controlled by program linkage to realize the synchronous handover and rhythmic flow of products between stations, ensuring that each station can operate independently while ensuring the smooth and efficient operation of the entire line.

[0018] Reference Figure 1 and Figure 2 The carrier mechanism 2 mainly consists of the following parts: a conveyor belt frame fixedly installed on the worktable of the frame 1, which serves as the supporting foundation for the entire conveying system; a set of annular conveyor belts and their transmission system (including drive rollers, driven rollers, and tensioning mechanisms) installed on the conveyor belt frame, with the top surface of the conveyor belt directly bearing and horizontally transporting the screen-attached products; a drive motor fixed to one end of the conveyor belt frame via a motor frame, whose output power drives the drive rollers to rotate through a coupling, thereby driving the conveyor belt to perform precise stepping motion. In addition, at the pull-out detection station of the pull-out detection module, a positioning assembly is also provided, which may include a photoelectric sensor for detecting product positioning and a lateral clamping cylinder 200 for achieving final precise product positioning.

[0019] Reference Figure 2 , Figure 3 , Figure 4 as well as Figure 5 The pull-out detection module 3 is located directly above the lateral clamping cylinder 200 and is the part that performs the core detection function. The pull-out detection module 3 includes a top plate 301, a support column 302, a vertical drive unit 31, a pull-out execution unit 32, and a probe detection unit 33.

[0020] The top plate 301 is horizontally positioned above the carrier mechanism 2 and is fixedly mounted on the frame 1 by four support columns 302.

[0021] The vertical drive unit 31 is fixedly mounted on the top plate 301. The vertical drive unit 31 includes a drive assembly 312 driven by a servo motor, such as a high-precision electric cylinder, and a tension mounting plate 311 driven by the electric cylinder to perform vertical lifting and lowering movements. The tension mounting plate 311 is horizontally arranged and located below the top plate 301.

[0022] The pull-out actuator 32 is connected below the vertical drive unit 31. The pull-out actuator 32 includes a tension sensor 321, a pull-out cylinder 322, and an upper vacuum suction cup 323. Specifically, the tension sensor 321 is vertically fixed to the center of the lower surface of the tension mounting plate 311 by bolts; the upper ends of multiple pull-out cylinders 322 are connected to a mounting block, which is mechanically connected to the lower end of the tension sensor 321, and these pull-out cylinders 322 are driven by the same pneumatic control system to ensure synchronous operation; an upper vacuum suction cup 323 is installed at the end of the piston rod of each pull-out cylinder 322. When the vertical drive unit 31 drives the tension mounting plate 311 to descend as a whole, these upper vacuum suction cups 323 contact and adhere to different positions on the upper surface of the touch panel (TP) of the screen-attached product 100.

[0023] The probe detection unit 33 is movably mounted on the pull-out execution unit 32. The probe detection unit 33 includes a probe mounting plate 331, distributed detection components 332, and a probe drive cylinder 333. The probe mounting plate 331 is rectangular in shape. A rectangular intermediate support frame 334 is parallel to the probe mounting plate 331 and is fixedly connected to the top plate 301 via connecting columns. The ends of the intermediate support frame 334 and the ends of the probe mounting plate 331 are connected via the probe drive cylinder 333, which drives the probe mounting plate 331 to move up and down. Therefore, the probe mounting plate 331 moves up and down independently of the pull-out execution unit 32. Multiple distributed detection components 332 are evenly distributed along the circumference of the probe mounting plate 331.

[0024] Each distributed detection component 332 includes: The probe fixing block 3321 is vertically fixed to the lower surface of the probe mounting plate 331 by bolts.

[0025] The contact probe 3322 is fixed on the probe fixing block 3321. The lower end of the contact probe 3322 is used to make slight contact with specific test points on the TP surface, such as test points near the edge or IC bonding area.

[0026] PCB board 3323 is a small rectangular circuit board that is fixed to the top of contact probe 3322 by adhesive or screws. Signal conditioning circuitry is integrated on it and electrically connected to probe 3322 by wires.

[0027] The high-precision displacement sensor 3324 can be a contact-type inductive displacement sensor with a built-in spring probe. The high-precision displacement sensor 3324 body is fixedly mounted on the middle support frame 334 by a bracket, located above the probe mounting plate 331.

[0028] The displacement transmission rod 3325 is essentially an extension rod of the spring probe built into the high-precision displacement sensor 3324. The lower end of the displacement transmission rod 3325 is machined into a smooth plane for contact with the center point of the upper surface of the PCB board 3323; the upper end of the displacement transmission rod 3325 can slide elastically along the axis with the internal spring structure of the high-precision displacement sensor 3324.

[0029] Reference Figure 6 As shown, the bottom fixing module 4 is integrated at the test position of the frame 1. The bottom fixing module 4 includes a lifting drive 41 (such as a cylinder), a fixed suction cup seat 42 connected to its piston rod, and multiple lower vacuum suction cups 43 mounted on the fixed suction cup seat 42. The lifting drive 41 can be a cylinder. During testing, after the screen-attached product 100 reaches the preset position, the bottom fixing module 4 is activated. The lifting drive 41 pushes the fixed suction cup seat 42 upward, causing the lower vacuum suction cups 43 to closely contact and adhere to the bottom surface of the product. This ensures that the product body is firmly fixed from below during the pull-out test, ensuring that the pulling force is fully applied to the TP bonding interface.

[0030] Reference Figure 7 As shown, the defective product processing module 5 is located at the station after the pull-out detection module 3, i.e., on the unloading station side. The defective product processing module 5 includes a defective product clamping unit 51, a defective product transfer drive unit 52, and a defective product return line 53. The defective product clamping unit includes a gripper 511 for clamping the screen-attached product 100 and a defective product lifting cylinder 512 for driving the gripper 511 to move up and down. The defective product transfer drive unit 52 includes a defective product transfer bracket 521 spanning the defective product return line 53 and above the carrier mechanism 2, and a defective product lateral transfer cylinder 522 mounted on the defective product transfer bracket 521. The defective product clamping unit 51 is mounted on the defective product lateral transfer cylinder 522.

[0031] When a product is determined to be defective, the defective product lifting cylinder 512 drives the gripper 511 to descend and hold the product. After the gripper 511 holds the product, the defective product lifting cylinder 512 drives the gripper 511 to rise. Then, the lateral transfer cylinder 522 will move the gripper 511 to the top of the defective product return line 53. The gripper 511 releases the product, and the return line 53 sends the product out.

[0032] This application also provides a control system, typically a PLC or industrial computer, which is signal-connected to the servo driver of the vertical drive unit 31, the tension sensor 321, the solenoid valve of the pull cylinder 322, all high-precision displacement sensors 3324, the probe drive cylinder 333, the cylinders of the bottom fixing module 4, and the actuators of the defective product handling module 5.

[0033] The functional principle of this application can be explained through the following methods: The screen-mounted product 100 to be tested is placed on the conveyor belt of the feeding and barcode scanning station by the automated equipment. The conveyor belt starts and transports the product forward. When the product passes the scanner above, the scanner automatically reads the product identification (such as barcode) and completes the binding and traceability of the product information with the testing system.

[0034] The scanned screen-mounted product 100 is transferred from the feeding station conveyor belt to the pull-out testing station conveyor belt and transported to the preset testing position. Upon arrival, the lateral clamping cylinder 200 at this station activates, applying force from the side of the product to precisely position it in the horizontal plane and keep it stationary. Simultaneously, the bottom fixing module 4 below the station is activated, and the lifting drive component 41 pushes the fixed suction cup base 42 and its multiple lower vacuum suction cups 43 upwards, tightly adhering to the lower surface of the product and providing stable support from below.

[0035] The pull detection module 3 begins to operate. First, the servo electric cylinder of the vertical drive unit 31 drives the pull mounting plate 311 to descend as a whole. The pull execution unit 32, which is installed below the pull mounting plate 311, descends accordingly, and multiple upper vacuum suction cups 323 on it contact and adhere to the upper surface of the product TP (touch panel).

[0036] Simultaneously, the probe drive cylinder 333 of the probe detection unit 33 drives the probe mounting plate 331 to descend independently. The tips of multiple contact probes 3322, evenly distributed on the probe mounting plate 331, descend accordingly until they gently contact the preset test points on the TP surface. After the probes contact the product, the continued slight descent of the probe mounting plate 331 forces the elastic end of the displacement transmission rod 3325 to form a stable elastic contact with the upper surface of the PCB board 3323 fixed to the probe tip. At this time, the high-precision displacement sensor 3324 establishes a highly sensitive displacement measurement link with each test point through the displacement transmission rod 3325, and the displacement transmission rod 3325 is in a pre-compressed state, providing a constant contact preload force.

[0037] Then, the pulling cylinder 322 of the pulling execution unit 32 starts according to the preset program, and applies an upward pulling force perpendicular to the screen plane, controllable in size and slowly increasing to the TP of the product through the upper vacuum suction cup 323. This pulling force is measured in real time and accurately by the pulling force sensor 321 connected in series in the force transmission path.

[0038] Under the pull-out force, if the TP is completely and firmly bonded to the underlying screen, the entire product will undergo a slight, synchronous elastic deformation as a whole. The contact probes 3322 and their PCB boards 3323 at each test point will then undergo displacements of the same amplitude and phase. These displacements are transmitted to the corresponding high-precision displacement sensors 3324 via displacement transmission rods 3325, and all sensors will output a set of highly consistent displacement change signals.

[0039] Conversely, if there is poor TP adhesion near a certain test point (such as voids, weak adhesion, or aging of the adhesive layer), that local area will experience additional micro-displacement or peeling relative to other firmly adhered areas under pull-out force. In this case, the contact probe 3322 corresponding to this loose area will detect the abnormal displacement, causing the displacement of the displacement transmission rod 3325 pushed by its PCB board 3323 to be significantly greater than the displacement of other normal test points. The high-precision displacement sensor 3324 at this point will capture this abnormal signal.

[0040] The control system synchronously acquires the real-time force curve of the tension sensor 321 and the real-time displacement curve of all high-precision displacement sensors 3324.

[0041] When the tension reaches the set threshold, if the displacement curves of all displacement sensors are smooth, the change is less than the preset safety threshold, and the shape of each curve is highly consistent, then the system determines that the TP adhesion quality is qualified and the product is a good product.

[0042] If, during the pulling process, the displacement curve of one or more sensors shows a sudden jump, the displacement amount significantly exceeds the limit, or the changes are not synchronized with other points, the system will not only determine that the product is defective, but also accurately locate the approximate area of ​​poor TP adhesion based on which sensor(s) alarmed, such as "loosening at the upper left corner" or "adhesion coming unglued at the right edge".

[0043] After the test is completed, all adsorption and clamping mechanisms are released and reset.

[0044] Good products are conveyed out by the conveyor belt at the drawing and inspection station and collected by manual or robotic arms in the unloading area.

[0045] Defective products are transported to the defective product processing station. Once in place, the defective product processing module 5 is activated: the defective product lifting cylinder 512 drives the gripper 511 to descend and clamp the product, then lifts it and transfers it to the defective product lateral transfer cylinder 522. This cylinder drives the gripper to move laterally, transferring the product to the top of the defective product return line 53 for release. The return line automatically sends it out of the workstation for rework or scrapping.

[0046] After one testing cycle is completed, all moving parts are reset to their initial state, and the carrier system sends the next product to be tested into the testing station to start a new testing cycle.

[0047] In summary, this application utilizes a stable testing environment with pull-out adsorption from above and reverse fixation from below; it achieves multi-point, high-precision, and synchronous displacement monitoring of the TP attachment interface through a distributed, elastically pre-tightened displacement sensing probe array; and by combining quantitative pull-out force control with multi-channel data comprehensive analysis, it achieves a leap from qualitative judgment to quantitative analysis, and enables a transition from overall evaluation to local positioning, thereby improving the reliability, accuracy, and automation level of the detection.

[0048] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0049] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. An automatic pull-out testing device for TP (Potentially Attached TP), comprising: A frame (1); a carrier mechanism (2), disposed on the frame (1), for positioning and fixing the screen-mounted product (100) to be tested, characterized in that it further includes: a pull-out detection module (3), disposed above the carrier mechanism (2), the pull-out detection module (3) comprising: A vertical drive unit (31) is fixedly installed on the frame (1); Pull-out execution unit (32) is connected to the output end of the vertical drive unit (31) and is driven by the vertical drive unit (31) to perform lifting and lowering motion. The pull-out execution unit (32) is used to adsorb the upper surface of the touch panel of the screen-attached product (100) and perform a pull-out action. A probe detection unit (33) is movably mounted on the frame (1). The probe detection unit (33) includes a probe mounting plate (331) that can be independently raised and lowered relative to the pull-out execution unit (32), and a plurality of distributed detection components (332) arranged around the probe mounting plate (331). Each of the distributed detection components (332) includes: The probe fixing block (3321) is fixed on the probe mounting plate (331); A contact probe (3322) is fixed on the probe fixing block (3321), and its lower end is used to contact the upper surface of the touch panel of the screen-mounted product (100). PCB board (3323) is fixed to the top of the contact probe (3322); A high-precision displacement sensor (3324) is fixedly installed on the pulling actuator (32); The displacement transmission rod (3325) has its lower end for contacting the upper surface of the PCB board (3323), and its upper end is connected to the detection end of the high-precision displacement sensor (3324) in a way that allows it to slide elastically along the axial direction. When the probe mounting plate (331) descends and the contact probe (3322) contacts the product surface, the continued descent of the probe mounting plate (331) forces the displacement transmission rod (3325) to generate an axial elastic sliding displacement relative to the high-precision displacement sensor (3324). During the pulling process, the high-precision displacement sensor (3324) detects the elastic sliding displacement of the displacement transmission rod (3325) to obtain the displacement change of the contact probe (3322).

2. The automatic pull-out testing device for TP adhesion as described in claim 1, characterized in that, The pull-out actuator (32) includes a pull sensor (321), a pull cylinder (322) connected to the pull sensor (321), and an upper vacuum suction cup (323) connected to the piston rod of the pull cylinder (322). The upper vacuum suction cup (323) is used to adsorb the upper surface of the touch panel of the screen product (100) after descent.

3. The automatic pull-out testing device for TP adhesion as described in claim 2, characterized in that, The vertical drive unit (31) includes: The tension mounting plate (311) is parallel to the probe mounting plate (331) and located above the probe mounting plate (331); A drive assembly (312) is mounted on the frame (1). The output end of the drive assembly (312) is connected to the tension mounting plate (311) and is used to drive the tension mounting plate (311) to perform lifting and lowering movements. The tension sensor (321) is fixedly installed on the tension mounting plate (311).

4. The automatic pull-out testing device for TP adhesion as described in claim 1, characterized in that, It also includes a bottom fixing module (4) disposed in the vehicle mechanism (2); The bottom fixing module (4) includes: The lifting drive component (41) is installed inside the carrier mechanism (2) and located below the screen-mounted product (100); A fixed suction cup base (42) is connected to the output end of the lifting drive (41) and is driven to lift by the lifting drive (41); The lower vacuum suction cup (43) is set on the fixed suction cup seat (42) and connected to the vacuum system for adsorbing and fixing the bottom surface of the screen product (100); When the lower vacuum suction cup (43) rises, it contacts and adsorbs the lower surface of the screen-mounted product (100).

5. The automatic pull-out testing device for TP adhesion as described in claim 1, characterized in that, The probe detection unit (33) also includes a probe drive cylinder (333) for driving the probe mounting plate (331) to rise and fall.

6. The automatic pull-out testing device for TP adhesion as described in claim 1, characterized in that, It also includes a defective product handling module (5); The defective product processing module (5) includes: The defective product clamping unit (51) is disposed on the unloading station side of the carrier mechanism (2) and is used to clamp the screen-mounted product (100) that is determined to be defective. A defective product transfer drive unit (52) is connected to the defective product clamping unit (51) and is used to drive the defective product clamping unit (51) to move between the unloading station and a defective product return line (53); The defective product return line (53) is used to receive and transport defective products released by the defective product holding unit (51).

7. The automatic pull-out testing device for TP adhesion as described in claim 6, characterized in that, The defective product clamping unit (51) includes a gripper (511) for clamping the screen-attached product (100) and a defective product lifting cylinder (512) for driving the gripper (511) to move up and down.

8. The automatic pull-out testing device for TP adhesion as described in claim 6 or 7, characterized in that, The defective product transfer drive unit (52) includes a defective product transfer bracket (521) spanning the defective product return line (53) and the carrier mechanism (2), and a defective product lateral transfer cylinder (522) mounted on the defective product transfer bracket (521). The defective product clamping unit (51) is mounted on the defective product lateral transfer cylinder (522).

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