A universal fixture for soldered tp touch testing

Abstract

The utility model discloses a general fixture for welding type TP touch test relates to touch test technical field. Including bakelite, the top of bakelite is equipped with a plurality of convenient product's taking hole of fetching when testing, and the bottom four corners of bakelite are equipped with first mounting hole, and the first mounting hole inner wall is equipped with rubber screw foot of screwing, the utility model discloses the setting of taking hole and gluey screw round head, in the use process, first, the welding type TP touch screen product of testing is put into bakelite, and manual pressing operating rod is pressed under the action of rotating plate and support plate, thereby making gluey screw round head press touch screen and test, after testing, the touch screen is taken out through taking hole, the device is through the change of rectangular bakelite pressure head into gluey screw round head, solves TP test connection direction limit problem, and test line can be connected from multiple directions, is suitable for various welding type design TP test.

Description

Technical Field

[0001] This utility model relates to the field of touch testing technology, specifically a universal fixture for solderable touch testing (TP). Background Technology

[0002] With the rapid development of smart terminal devices, touch screens, as the core component of human-computer interaction, have been widely used in devices such as smartphones, tablets, vehicle central control systems, and industrial control panels. In the production and assembly process of touch screens, in order to ensure the accuracy, sensitivity, and reliability of their touch functions, they must be subjected to rigorous touch function tests before leaving the factory or before assembly. This is especially true for soldered TP modules, which are touch screen components whose touch screen control circuit has been permanently connected to the main control circuit board (such as PCB) through a soldering process. The testing process places higher demands on the fixing method, contact stability, and simulated touch accuracy. When conducting touch function tests on soldered TP modules, it is usually necessary to fix the TP module on a test fixture and perform contact operations on the TP surface by simulating a finger or stylus, while collecting its electrical response signals to determine whether the touch function is normal.

[0003] Existing monitoring equipment typically consists of a rectangular strip of bakelite with a quick clamp mounted on it. The pressure head is a small rectangular piece of bakelite. After aligning the TP gold fingers and test leads, pressing the clamp down presses down the small rectangular piece of bakelite, holding the aligned TP gold fingers in place to complete the touch test. However, because the pressure head is rectangular, the TP test connection direction is limited. Many projects require dedicated fixtures due to structural constraints, resulting in poor versatility and increased costs. Therefore, we propose a more convenient and practical universal fixture for soldered TP touch testing to meet the usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide a universal fixture for welding-type TP touch testing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a universal fixture for testing solderable TP touch screens, comprising a bakelite board, the top of which has several retrieval holes for easy product handling during testing, and four through-holes at the bottom of the bakelite board with first mounting holes, the inner walls of which are threaded with rubber screw feet, a mounting groove on one side of the top of the bakelite board, and second mounting holes at the four through-holes of the mounting groove, a mounting plate on one side of the mounting groove, and a clamping assembly on the top of the mounting plate.

[0006] Furthermore, the mounting plate has through holes at the four corners of its top, and screws are installed in the through holes, with the screws fitting into the second mounting holes.

[0007] Furthermore, the clamping assembly includes a support plate, which is connected to a mounting plate. Rotating plates are rotatably connected to both sides of the top of the support plate, and an operating lever is rotatably connected to one side of the rotating plate.

[0008] Furthermore, one end of the operating lever is rotatably connected to a pressure plate, and the pressure plate and the support plate are rotatably connected.

[0009] Furthermore, the top of the pressure plate has a slot, and a limiting piece is slidably connected inside the slot. The top of the limiting piece has a through hole, and a bolt is slidably connected inside the through hole. Adjusting nuts are threaded to the outer walls of both ends of the bolt, and the adjusting nuts are in contact with the limiting piece.

[0010] Furthermore, one end of the bolt is threaded with a rubber-like screw head.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This universal fixture for testing welded TP touchscreens, featuring a pick-up hole and a rubber screw round indenter, allows for several steps. First, rubber screws are installed on a bakelite board through the first mounting hole, providing support. Next, a mounting plate is placed on the mounting slot, and the fixture is secured to the bakelite board via the second mounting hole and screws. The welded TP touchscreen to be tested is then placed on the bakelite board. Simultaneously, the positions of the bolts and limit plates on the pressure plate are manually adjusted, and the adjusting nut is rotated to clamp the rubber screw round indenter. Finally, the operating lever is manually pressed, and under the action of the rotating plate and support plate, the rubber screw round indenter presses against the touchscreen for testing. After testing, the touchscreen is removed through the pick-up hole. This device, by replacing the rectangular bakelite indenter with a rubber screw round indenter, solves the problem of TP testing connection direction limitations. Test leads can be connected from multiple directions, suitable for testing various welded TP designs, without altering the testing workers' habits, requiring no retraining or adaptation. It is highly versatile, simple, convenient, and cost-effective, eliminating the need for custom-made test fixtures for each project, making it highly practical and suitable for widespread adoption.

[0012] At the same time, multiple through holes were drilled in the bakelite board to facilitate personnel in taking the product out during testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bakelite board structure of this utility model; Figure 3 This is a schematic diagram of the clamping mechanism of this utility model.

[0014] In the diagram: 1. Bakelite board; 2. Part removal hole; 3. First mounting hole; 4. Rubber screw foot; 5. Mounting groove; 6. Second mounting hole; 7. Mounting plate; 8. Screw; 9. Support plate; 10. Rotating plate; 11. Operating lever; 12. Pressure plate; 13. Limiting plate; 14. Bolt; 15. Gel-like screw round pressure head; 16. Adjusting nut. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the touchscreen manufacturing process, clamps are required. The clamp provided by this invention is specifically designed for clamping touchscreens during the manufacturing process. When using this equipment for clamping, the pressure should be adjusted appropriately according to the material, thickness, and characteristics of the product. During testing, it is important to avoid applying additional external forces to the clamps and the test product, such as collisions with the clamps or the touch pressure plate 12. External interference may cause changes in the product's position, affecting the accuracy of the test results, and may even damage the clamps or the product.

[0017] like Figures 1-3 As shown, this utility model provides a technical solution: a universal fixture for testing solderable TP touch screens, including a bakelite board 1. The top of the bakelite board 1 has several retrieval holes 2 for easy product retrieval during testing. Four corners at the bottom of the bakelite board 1 have first mounting holes 3, with rubber screw feet 4 threaded into the inner walls of the first mounting holes 3. A mounting groove 5 is provided on one side of the top of the bakelite board 1, with second mounting holes 6 through the four corners of the mounting groove 5. A mounting plate 7 is provided on one side of the mounting groove 5, with a clamping assembly on the top of the mounting plate 7. Through holes are provided at the four corners of the top of the mounting plate 7, with screws 8 installed in the through holes. The screws 8 and the second mounting holes 6... The holes 6 are compatible with each other. The clamping assembly includes a support plate 9, which is connected to the mounting plate 7. Rotating plates 10 are rotatably connected to both sides of the top of the support plate 9. An operating rod 11 is rotatably connected to one side of the rotating plate 10. A pressure plate 12 is rotatably connected to one end of the operating rod 11. The pressure plate 12 is rotatably connected to the support plate 9. A slot is opened at the top of the pressure plate 12. A limiting piece 13 is slidably connected in the slot. A through hole is opened at the top of the limiting piece 13. A bolt 14 is slidably connected in the through hole. Adjusting nuts 16 are threaded to the outer walls of both ends of the bolt 14. The adjusting nuts 16 are in contact with the limiting piece 13. A rubber screw round pressure head 15 is threaded to one end of the bolt 14.

[0018] It should be noted that during use, firstly, the rubber screw adhesive is installed on the bakelite board 1 through the first mounting hole 3 to support the bakelite board 1. Next, the mounting plate 7 is placed on the mounting groove 5, and the clamp is fixed to the bakelite board 1 through the second mounting hole 6 and the screw 8. Then, the soldered TP touch screen product to be tested is placed on the bakelite board 1. At the same time, the positions of the bolt 14 and the limiting piece 13 on the pressure plate 12 are manually adjusted, and the adjusting nut 16 is rotated to clamp the rubber screw round pressure head 15. Finally, the operating lever 11 is manually pressed, and under the action of the rotating plate 10 and the support plate 9, This allows the rubber screw round pressure head 15 to press the touch screen for testing. After the test is completed, the touch screen is removed through the removal hole 2. This device solves the problem of TP test connection direction limitation by changing the rectangular bakelite pressure head to the rubber screw round pressure head 15. The test line can be connected from multiple directions, which is suitable for TP testing of various solder-type designs. It does not change the usage habits of the test workers, and does not require retraining or adaptation. It is highly versatile, simple, convenient and cost-effective. There is no need to customize test fixtures for each project. At the same time, multiple through holes are drilled in the bakelite board 1 to facilitate personnel to take the product out during testing.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A universal fixture for solderable touch testing (TP), characterized in that: The product includes a bakelite board (1), which has several retrieval holes (2) on its top for easy removal of the product during testing. The bottom of the bakelite board (1) has four through-holes with first mounting holes (3). The inner wall of the first mounting holes (3) is threaded with rubber screw feet (4). The top side of the bakelite board (1) has a mounting groove (5). The four corners of the mounting groove (5) have second mounting holes (6). The mounting groove (5) has a mounting plate (7) on one side. The mounting plate (7) has a clamping component on its top.

2. A universal fixture for solderable TP touch testing according to claim 1, characterized in that: The mounting plate (7) has through holes at the four corners of its top, and screws (8) are installed in the through holes. The screws (8) are matched with the second mounting hole (6).

3. A universal fixture for solderable TP touch testing according to claim 1, characterized in that: The clamping assembly includes a support plate (9), which is connected to a mounting plate (7). A rotating plate (10) is rotatably connected to both sides of the top of the support plate (9), and an operating rod (11) is rotatably connected to one side of the rotating plate (10).

4. A universal fixture for solderable TP touch testing according to claim 3, characterized in that: One end of the operating lever (11) is rotatably connected to a pressure plate (12), and the pressure plate (12) and the support plate (9) are rotatably connected.

5. A universal fixture for solderable TP touch testing according to claim 4, characterized in that: The pressure plate (12) has a slot at the top, and a limiting piece (13) is slidably connected in the slot. The limiting piece (13) has a through hole at the top, and a bolt (14) is slidably connected in the through hole. Adjusting nuts (16) are threaded to the outer walls of both ends of the bolt (14), and the adjusting nuts (16) and the limiting piece (13) are in contact.

6. A universal fixture for solderable TP touch testing according to claim 5, characterized in that: One end of the bolt (14) is threaded with a rubber screw head (15).

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