Fingerprint group measuring equipment
By using a visual camera to scan codes and a multi-axis moving component to locate defective products, the problem of oil stain marking in existing technologies has been solved, realizing a highly efficient and oil-free fingerprint module testing device, which improves production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TIANDUN PRECISION MASCH CO LTD
- Filing Date
- 2024-04-18
- Publication Date
- 2026-05-26
AI Technical Summary
Existing fingerprint module testing equipment tends to leave oil stains when marking defective products, which affects production efficiency and product quality.
The system uses a visual camera to scan the fingerprint scanner to confirm the location of the fingerprint scanner, and uses a multi-axis moving component and an adsorption component to quickly locate defective products, avoiding the use of marking pens. It also utilizes a transfer device and a simulation testing device to achieve automated sorting.
It enables rapid, oil-free location and recording of defective products, improving production efficiency, avoiding oil residue, and simplifying the material loading process.
Smart Images

Figure CN224272239U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of testing equipment technology, specifically a fingerprint group measurement device. Background Technology
[0002] Fingerprint modules are widely used in many electronic product fields. Before leaving the factory, fingerprint modules need to be tested. Those that function normally can be shipped, while those that malfunction need to be selected for rework. In order to improve work efficiency, there are now devices for quickly sorting fingerprint modules into normal and abnormal ones.
[0003] For example, in the Chinese patent document "CN107716341A, a fingerprint module testing machine", when one or more fingerprint modules are detected as defective, the motor starts and drives each cylinder to move to the top of the whole board of fingerprint modules. The cylinder above the corresponding defective product starts and drives the marking pen tip to mark the corresponding fingerprint module. Then the cylinder drives the marking pen tip to retract, and the motor drives each cylinder to retract, so that each marking pen tip moves to the top of the ink cartridge and uses a sponge to absorb the ink overflowing on the marking pen tip.
[0004] As can be seen from the above technical solutions, defective products are mainly marked by drawing on the pen, and the marks will be left on the product. Utility Model Content
[0005] The purpose of this invention is to provide a fingerprint group measurement device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A fingerprint group measurement device, comprising:
[0008] A conveying device for conveying a carrier tray, on which several fingerprint scanners are placed;
[0009] A simulation testing device used to trigger commands to test the fingerprint reader;
[0010] Visual camera one is used to scan the fingerprint scanner;
[0011] The transfer device is equipped with several fingerprint acquisition units and can move in multiple axes between the conveyor, the vision camera and the simulation test device.
[0012] In a further technical solution, the transfer device includes a multi-axis moving component, the moving end of which is equipped with a fixed frame, and the fixed frame is equipped with a plurality of adsorption components and a plurality of visual cameras.
[0013] In a further technical solution, a plurality of drive motors are installed on the fixing frame, and each drive motor is connected to the adsorption assembly through a synchronous pulley set, wherein the adsorption assembly is slidably connected to the fixing frame.
[0014] In a further technical solution, the adsorption component includes a movable plate, on which a rotating motor is mounted, and an adsorption head is mounted at the output end of the rotating motor.
[0015] In a further technical solution, the simulation testing device includes a fixed base, a movable base slidably connected to the fixed base, the movable base being connected to a drive assembly, a plurality of test fixtures I being mounted on the movable base, a plurality of pressing assemblies being mounted on the fixed base, and a test fixture II being mounted at the bottom of the pressing assemblies, the test fixture II corresponding to the test fixtures I.
[0016] In a further technical solution, the pressing assembly includes a second drive motor and a double-layer movable frame. The movable frame passes through the fixed base and is provided with several springs between the fixed base and the movable frame. A gear is installed at the output end of the second drive motor, and the gear meshes with a rack. The rack is connected to the movable frame, and a second test fixture is provided on the bottom surface of the movable frame.
[0017] The beneficial effects of this utility model are:
[0018] This invention locates each fingerprint scanner by scanning a code, enabling quick location of defective products and recording the information in the system. This eliminates the need for drawing or writing marks and avoids the adhesion of oil stains.
[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0020] Figure 1 : A three-dimensional structural diagram of this utility model.
[0021] Figure 2 : Structural diagram of the transfer device of this utility model.
[0022] Figure 3 : Structural diagram of the adsorption component of this utility model.
[0023] Figure 4 : Structural diagram of the simulation testing device of this utility model.
[0024] Figure 5 The pressing component structure of this utility model Figure 1 .
[0025] Figure 6 The pressing component structure of this utility model Figure 2 .
[0026] Reference numerals: 11-Conveying device, 12-Conveying tray, 2-Simulation testing device, 21-Fixed seat, 22-Modible seat, 23-Drive assembly, 24-Test fixture one, 25-Pressure assembly, 251-Drive motor two, 252-Modible frame, 253-Spring, 254-Gear, 255-Rack, 26-Test fixture two, 3-Vision camera one, 4-Transfer device, 41-Multi-axis moving assembly, 42-Fixed frame, 43-Adsorption assembly, 431-Modible plate, 432-Rotating motor, 433-Adsorption head, 44-Vision camera two, 451-Drive motor one, 452-Synchronous pulley set. Detailed Implementation
[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0028] Please refer to Figure 1-6 ;
[0029] The fingerprint group measuring device of this utility model can mark each product and track defective products. Specifically, it includes a conveying device 11, a simulation testing device 2, a vision camera 3, and a transfer device 4. The conveying device 11 can be a palletizing conveyor used to transport the tray 12 to a designated location, and the tray holds a number of fingerprints to be tested. In addition, the transfer device 4 is provided with a number of fingerprint acquisition parts for picking up the fingerprints, and can move in multiple axes between the conveying device 11, the vision camera 3, and the simulation testing device 2.
[0030] During operation, the carrier tray is transported to a designated location via the conveyor 11. Several fingerprint scanners are neatly arranged on the carrier tray, which also has acupoints for securing the scanners. Then, the transfer device 4 picks up several fingerprint scanners at once via the acquisition unit and places them into the simulation testing device 2. During this transfer, each fingerprint scanner passes through the visual camera 3, which has a barcode scanning function. It should be noted that each fingerprint scanner has a unique QR code or barcode. The fingerprint scanners are then placed on the carrier tray. Alternatively, additional devices can be used to scan and record the fingerprints, thus determining the position of each fingerprint sensor in the tray. The visual camera 3 scans the fingerprint sensor under test to determine the testing order. For example, if five fingerprint sensors are picked up, they are scanned sequentially by the visual camera 3 before entering the simulation testing device 2 to determine their order, and then they enter the simulation testing device 2 in sequence. The simulation testing device 2 will trigger various commands to test the fingerprint sensors. After the test is completed, the acquisition unit removes several fingerprint sensors from the simulation testing device 2 and then puts them back into the tray in sequence.
[0031] Preferably, after all fingerprint scanners are removed from the simulation test device 2 in sequence, they are scanned again by the visual camera 3 to confirm their order and position.
[0032] This invention locates each fingerprint scanner by scanning a code, enabling quick location of defective products and recording the information in the system. This eliminates the need for drawing or writing marks and avoids the adhesion of oil stains.
[0033] One embodiment of the present invention relates to a transfer device 4, specifically including a multi-axis moving assembly 41. A fixed frame 42 is installed on the moving end of the multi-axis moving assembly 41. Several adsorption components 43 and several visual cameras 44 are installed on the fixed frame 42. First, the multi-axis moving device drives each component to move above the carrier plate. Then, the visual cameras 44 locate the fingerprint module to be picked up and send it to the system. The system controls the multi-axis moving device to adjust its position according to the information, so that each adsorption component 43 can correspond to and pick up each fingerprint sensor to be tested.
[0034] In addition, some fingerprint scanners have QR codes on top. At this time, the QR codes can be scanned by the second visual camera 44. The multi-axis moving component 41 then passes over the top of each fingerprint scanner in turn to scan the codes and determine the order. The effect is the same as that of the first visual camera 3, so it will not be described in detail here.
[0035] Furthermore, each adsorption component 43 can operate independently. For example, if there are five adsorption components 43 but only four fingerprint scanners on the carrier plate, the four adsorption components 43 can operate independently. More specifically, several drive motors 451 are installed on the mounting frame 42. Each drive motor 451 is connected to the adsorption component 43 through a synchronous pulley set 452. The adsorption component 43 is slidably connected to the mounting frame 42. That is, each drive motor 451 is linked to each adsorption component 43 through the synchronous pulley set 452, and the movement of the drive motor 451 drives the adsorption component 43 to move up and down.
[0036] Each adsorption component 43 in this embodiment has the same structure. The following is a further description of the adsorption component 43, which includes a movable plate 431. A rotating motor 432 is installed on the movable plate 431. An adsorption head 433 is installed at the output end of the rotating motor 432. It should be noted that the vision camera 3 has a positioning function. First, the product is acquired through the adsorption head 433. When the product passes through the vision camera 3, in addition to scanning the code, the fingerprint sensor is also located. If there is a deviation, the rotating motor 432 drives the adsorption head 433 to rotate the angle for fine adjustment.
[0037] One embodiment of the present invention relates to a simulation testing device 2. In this embodiment, a top-and-bottom pressing test method is adopted, which means that there should be two jigs that can be separated from each other. However, jigs are generally aligned top and bottom, which is inconvenient for loading. Therefore, a movable method is adopted to push out the jigs, simplifying the loading process. Specifically, it includes a fixed base 21, on which a movable base 42 is slidably connected. The movable base 42 is connected to a drive component 23. Several test jigs 24 are mounted on the movable base 42. The test jigs 24 are lower molds. The drive component 23 drives the movable base 42 to move relative to the fixed base 21, thereby pushing out the test jigs 24 for easy loading. Several pressing components 25 are mounted on the fixed base 21. The bottom of the pressing components 25 is fitted with... The test fixture 26 is equipped with a second test fixture, which can only move up and down. After the loading is completed, the movable seat 42 is reset under the drive of the drive component 23, so that the second test fixture 26 corresponds to the first test fixture 24. It should be noted that since the fingerprint sensor needs to be triggered by a command, it should have several components. However, the first test fixture 24 has a large range of movement, which makes it inconvenient to set too many connecting wires. Therefore, the first test fixture 24 is equipped with a first test seat connected to the fingerprint sensor, while the second test fixture 26 is connected to a second test seat. At the same time, the second test seat is connected to the connecting wire. The pressing component 25 makes the second test fixture 26 move downward and combine with the first test fixture 24. At the same time, the second test seat combines with the first test seat, realizing an electrical connection, and the test can then be performed.
[0038] Furthermore, the pressing assembly 25 includes a second drive motor 251 and a double-layer movable frame 252. Here, "double-layer" refers to a space on both sides. For example, the movable frame 252 is composed of three longitudinally distributed plates, forming a space between adjacent plates. These plates are connected by fixed posts. One layer of the movable frame 252 passes through a fixed base 21, and several springs 253 are provided between the fixed base 21 and the movable frame 252. For example, a spring 253 is provided between the bottom surface of the upper plate and the upper surface of the fixed base 21. The fixed posts can move longitudinally with the fixed base 21. A gear 254 is installed at the output end of the second drive motor 251. Gear 254 meshes with rack 255, rack 255 is connected to movable frame 252, and test fixture 26 is provided on the bottom surface of movable frame 252. In the initial state, drive motor 251 will not operate, that is, it will not cause gear 254 to rotate, and rack 255 will not move. At this time, the position of movable frame 252 can be limited. When it is necessary to press down, drive motor 251 drives gear 254 to rotate, and rack 255 moves downward, that is, it drives movable frame 252 to move downward. Finally, test fixture 24 descends. When it is necessary to reset, drive motor drives gear 254 to reverse. At the same time, spring 253 can play an auxiliary role in resetting.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.
Claims
1. A fingerprint group measuring device, characterized in that: include; A conveying device (11) is used to convey a carrier tray (12) on which several fingerprinters are placed; The simulation test device (2) is used to trigger commands to test the fingerprint reader; Visual camera 1 (3) is used to scan the fingerprint scanner; The transfer device (4) is provided with several acquisition parts for fingerprint pickup and moves in multiple axes between the conveying device (11), the visual camera (3) and the simulation test device (2). The transfer device (4) includes a multi-axis moving assembly (41), and a fixed frame (42) is installed on the moving end of the multi-axis moving assembly (41). Several adsorption components (43) and several visual cameras (44) are installed on the fixed frame (42). The adsorption components are used to acquire fingerprints. A plurality of drive motors (451) are installed on the fixed frame (42). Each drive motor (451) is connected to the adsorption assembly (43) through a synchronous pulley set (452). The adsorption assembly (43) is slidably connected to the fixed frame (42).
2. The fingerprint group measuring device according to claim 1, characterized in that: The adsorption assembly (43) includes a movable plate (431), on which a rotating motor (432) is mounted, and an adsorption head (433) is mounted at the output end of the rotating motor (432).
3. The fingerprint group measuring device according to claim 1, characterized in that: The simulation test device (2) includes a fixed base (21), a movable base (22) is slidably connected to the fixed base (21), the movable base (22) is connected to the drive assembly (23), a plurality of test fixtures (24) are installed on the movable base (22), a plurality of pressing assemblies (25) are installed on the fixed base (21), and a second test fixture (26) is installed at the bottom of the pressing assembly (25), the second test fixture (26) corresponds to the first test fixture (24).
4. The fingerprint group measuring device according to claim 3, characterized in that: The pressing assembly (25) includes a second drive motor (251) and a double-layer movable frame (252). The movable frame (252) passes through the fixed base (21) and is provided with several springs (253) between the fixed base (21) and the movable frame (252). A gear (254) is installed at the output end of the second drive motor (251). The gear (254) meshes with a rack (255). The rack (255) is connected to the movable frame (252). A second test fixture (26) is provided on the bottom surface of the movable frame (252).