Mounting jig for appearance defect detection of camera glass cover plate

By designing angle adjustment and positioning components, the problems of existing equipment being unable to adjust the reflector angle and inaccurate positioning were solved, enabling efficient and accurate detection of appearance defects in camera glass covers, and improving the degree of automation and detection accuracy.

CN224231609UActive Publication Date: 2026-05-12NANCHANG TXD PRECISION OPTOELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANCHANG TXD PRECISION OPTOELECTRONICS CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing camera glass cover appearance defect detection equipment cannot adjust the reflector angle, resulting in low detection efficiency, inaccurate positioning, and cumbersome manual operation.

Method used

A fixture for detecting appearance defects in camera glass covers was designed. It employs angle adjustment and positioning components, and through the cooperation of telescopic cylinders, connecting bases, partitions, stepper motors, and reflectors, it achieves multi-angle detection and precise positioning, reducing manual operation and improving automation.

Benefits of technology

It enables rapid and accurate multi-angle detection, improves detection efficiency and accuracy, reduces manual intervention, and ensures the comprehensiveness and reliability of detection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224231609U_ABST
Patent Text Reader

Abstract

The utility model provides a camera glass cover plate appearance defect detection mounting jig, which relates to the technical field of mounting jigs, and comprises a fixed base, a support frame is welded at the upper end of the fixed base, a support base is arranged on the outer side of the support frame, the upper end of the support frame is fixedly connected with a connecting plate, and the upper end of the connecting plate is fixedly connected with a connecting rod. The inner sides of the connecting plates are rotationally connected with auxiliary rolling wheels. The angle adjusting assembly is arranged, a telescopic air cylinder, a connecting base, a partition plate, a second stepping motor, a rotating block and a reflecting plate are matched, the multi-angle detection function is achieved, the stepping motor is adopted for driving, the angle of the reflecting plate can be rapidly and accurately adjusted, the automation degree is high, the complexity of manual operation is reduced, and the working efficiency is improved. Meanwhile, the detection efficiency is further improved through the capacity of rapidly switching angles, the comprehensiveness and accuracy of detection are ensured through cooperative work of the angle adjusting assembly and the rotary workbench, and an efficient and reliable solution is provided for appearance defect detection of the camera glass cover plate.
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Description

Technical Field

[0001] This utility model relates to the field of installation fixture technology, and in particular to an installation fixture for detecting appearance defects in camera glass covers. Background Technology

[0002] A camera lens cover is a piece of glass installed in front of the camera lens. It is mainly used to protect the lens, prevent dust and dirt from entering, and enhance the product's aesthetics. It requires a series of complex processes to manufacture, but during the production process, appearance defects such as scratches, dents, and poor screen printing are prone to occur. These defects will seriously affect the camera's image quality and the overall quality of the product. Since manual visual inspection is inefficient and has a high rate of missed inspections, it is difficult to meet the needs of large-scale production. Therefore, it is necessary to use appearance defect detection fixtures.

[0003] A search revealed that the document with publication number "CN222289956U" mentions "This utility model discloses a fixture for detecting appearance defects in mobile phone camera glass covers, relating to the field of fixture technology. This utility model includes a U-shaped base, with two U-shaped transmission plates slidingly engaged on one side of the U-shaped base. Multiple L-shaped brackets are arrayed along the length of one end of the U-shaped transmission plates extending into the U-shaped base. A threaded pull rod, threadedly engaged with the U-shaped transmission plates, is rotatably engaged on one side of the U-shaped base, and a worm gear is fitted onto the threaded pull rod. This utility model involves placing a loading plate on two corresponding L-shaped brackets, then activating the first drive mechanism. A first servo motor drives a bidirectional worm gear to rotate the two worm gears, which in turn drive the threaded pull rod..." The mechanism rotates, causing two U-shaped transmission plates to move towards each other, thereby positioning the loading plate. This facilitates the positioning of loading plates of different specifications, allows for the simultaneous positioning of multiple loading plates, improves the efficiency of loading plate positioning, and reduces the workload of workers. In use, the loading plate is placed on two corresponding L-shaped brackets. Then, the first drive mechanism is activated. The first servo motor drives a bidirectional worm gear, which in turn rotates two worm wheels. The worm wheels then rotate a threaded pull rod, causing the two U-shaped transmission plates to move towards each other, thus positioning the loading plate. This facilitates the positioning of loading plates of different specifications, allows for the simultaneous positioning of multiple loading plates, improves the efficiency of loading plate positioning, and reduces the workload of workers.

[0004] However, in actual testing, existing equipment can only slide in a straight line when testing the camera glass cover, and cannot adjust the angle of the reflector. This single adjustment method cannot meet complex testing needs. At the same time, the positioning process in actual testing requires manual operation, which is not only inefficient, but also prone to inaccurate positioning due to human factors.

[0005] Therefore, we provide a fixture for detecting and installing defects in the appearance of camera glass covers to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a camera glass cover plate appearance defect detection and installation fixture, which aims to solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A fixture for detecting appearance defects in camera glass covers includes a fixed base, a support frame welded to the upper end of the fixed base, a support base on the outer side of the support frame, a connecting plate fixedly connected to the upper end of the support frame, an auxiliary roller rotatably connected to the inner side of the connecting plate, a first stepper motor on the inner side of the support frame, a rotary table mounted on the upper end of the first stepper motor, a positioning component mounted on the surface of the rotary table, the positioning component including a first inclined plate mounted on the surface of the rotary table, a positioning groove on the right side of the first inclined plate, a second inclined plate on the right side of the positioning groove, and an angle adjustment component on the inner side of the support frame, the angle adjustment component including a telescopic cylinder mounted on the inner side of the support frame, the upper end of the telescopic cylinder being mounted with a connecting base.

[0009] As a further description of the above technical solution:

[0010] The fixed base and the support frame are welded together. The connecting plate forms a rotating structure with the auxiliary rollers via a shaft. Multiple sets of the connecting plate and the auxiliary rollers are provided. The first stepper motor and the rotary worktable are connected by a flat key. The rotary worktable is decagonal.

[0011] As a further description of the above technical solution:

[0012] The surface of the rotary worktable is provided with a detection groove, and a placement base is welded to the inner side of the detection groove. An anti-slip pad is adhered to the upper surface of the placement base. A loading plate is provided above the placement base. A placement groove is provided on the inner side of the loading plate. A clamping pressure plate is provided above the loading plate. A connecting rod is fixedly connected to the upper surface of the clamping pressure plate. A connecting bushing is welded to one end of the connecting rod.

[0013] As a further description of the above technical solution:

[0014] The first inclined plate is symmetrically arranged with the second inclined plate through the central axis of the positioning groove. The first inclined plate is a triangular inclined surface, and the second inclined plate is the same shape and size as the first inclined plate.

[0015] As a further description of the above technical solution:

[0016] A positioning pin is provided on the outside of the positioning groove. A telescopic spring is installed at one end of the positioning pin, and a connecting block is provided at the other end of the telescopic spring. The positioning pin and the connecting block form a telescopic structure through the telescopic spring.

[0017] As a further description of the above technical solution:

[0018] The telescopic cylinder is welded to the connecting base. A U-shaped mounting groove is provided on the inner side of the connecting base, and a partition is installed on one side of the connecting base.

[0019] As a further description of the above technical solution:

[0020] A second stepper motor is provided on the left side of the partition, and a rotating block is slidably connected to the inner side of the connecting base through a slide groove. A reflector is installed on the upper end of the rotating block, and the second stepper motor passes through the partition and forms a keyed connection with the rotating block.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model achieves multi-angle detection by setting up an angle adjustment component, which, through the cooperation of a telescopic cylinder, connecting base, partition, second stepper motor, rotating block, and reflector, enables rapid and precise adjustment of the reflector angle. The high degree of automation reduces the tediousness of manual operation, while the ability to quickly switch angles further improves detection efficiency. The coordinated work of the angle adjustment component and the rotating worktable ensures the comprehensiveness and accuracy of the detection, providing an efficient and reliable solution for detecting appearance defects in camera glass covers.

[0023] 2. This utility model achieves precise positioning of the rotary table by setting up a positioning component. Through the coordinated work of the first inclined plate, positioning groove, second inclined plate, positioning pin, telescopic spring and connecting block, the symmetrical layout ensures uniform force and stability. The automatic telescopic function reduces manual intervention and improves the automation and efficiency of the inspection. At the same time, the modular design facilitates maintenance and replacement of parts, is durable, and has a long service life. The positioning component provides a stable benchmark for the inspection process, which significantly improves the inspection accuracy and reliability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of one side of the overall structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the overall exploded structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the cooperative structure of the rotary worktable and positioning component of this utility model;

[0029] Figure 6 This is a schematic diagram of the angle adjustment component of this utility model.

[0030] The diagram shows the following components: 1. Fixed base; 2. Support frame; 3. Support base; 4. Connecting plate; 5. Auxiliary roller; 6. First stepper motor; 7. Rotary worktable; 8. Detection slot; 9. Placement base; 10. Loading plate; 11. Clamping pressure plate; 12. Connecting rod; 13. Connecting bushing; 14. Positioning assembly; 1401. First inclined plate; 1402. Positioning slot; 1403. Second inclined plate; 1404. Positioning pin; 1405. Telescopic spring; 1406. Connecting block; 15. Angle adjustment assembly; 1501. Telescopic cylinder; 1502. Connecting base; 1503. Partition; 1504. Second stepper motor; 1505. Rotating block; 1506. Reflector. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: a camera glass cover appearance defect detection and installation fixture, including a fixed base 1, a support frame 2 welded to the upper end of the fixed base 1, a support base 3 provided on the outer side of the support frame 2, a connecting plate 4 fixedly connected to the upper end of the support frame 2, an auxiliary roller 5 rotatably connected to the inner side of the connecting plate 4, a first stepper motor 6 provided on the inner side of the support frame 2, a rotary table 7 installed on the upper end of the first stepper motor 6, a positioning component 14 installed on the surface of the rotary table 7, the positioning component 14 including a first inclined plate 1401 installed on the surface of the rotary table 7, a positioning groove 1402 provided on the right side of the first inclined plate 1401, a second inclined plate 1403 provided on the right side of the positioning groove 1402, an angle adjustment component 15 provided on the inner side of the support frame 2, the angle adjustment component 15 including a telescopic cylinder 1501 installed on the inner side of the support frame 2, and a connecting base 1502 installed on the upper end of the telescopic cylinder 1501.

[0033] Furthermore, the fixed base 1 and the support frame 2 are welded together. The connecting plate 4 forms a rotating structure with the auxiliary rollers 5 through the shaft. Multiple sets of connecting plates 4 and auxiliary rollers 5 are provided. The first stepper motor 6 and the rotary table 7 are connected by a flat key. The rotary table 7 is decagonal. When the first stepper motor 6 drives the rotary table 7 to rotate, the auxiliary rollers 5 are located at the bottom of the rotary table 7, making the rotation of the rotary table 7 more flexible and stable, while also providing support, which facilitates improved work efficiency when inspecting the cover plate.

[0034] Furthermore, the surface of the rotary worktable 7 is provided with a detection groove 8, and a placement base 9 is welded to the inner side of the detection groove 8. An anti-slip pad is adhered to the upper surface of the placement base 9, and a loading plate 10 is provided above the placement base 9. A placement groove is provided on the inner side of the loading plate 10, and a clamping pressure plate 11 is provided above the loading plate 10. A connecting rod 12 is fixedly connected to the upper surface of the clamping pressure plate 11, and a connecting bushing 13 is welded to one end of the connecting rod 12. When the cover plate is to be detected, the cover plate is placed inside the placement groove inside the loading plate 10, and then the loading plate 10 is placed above the placement base 9. The anti-slip pad adhered to the upper surface of the placement base 9 increases the friction and prevents the loading plate 10 from sliding during the detection process. At the same time, the clamping pressure plate 11, which is connected to the connecting bushing 13 and the connecting rod 12, is manually placed inside the detection groove 8 to contact the loading plate 10, which plays a fixing role. The loading plate 10 can be replaced according to the size of the camera glass cover plate.

[0035] Furthermore, the first inclined plate 1401 is symmetrically arranged with the second inclined plate 1403 via the central axis of the positioning groove 1402. The first inclined plate 1401 is a triangular inclined surface, and the second inclined plate 1403 has the same shape and size as the first inclined plate 1401. The first inclined plate 1401, the positioning groove 1402, and the second inclined plate 1403 are fixedly installed on the surface of the rotary table 7. When the rotary table 7 rotates, the first inclined plate 1401, the positioning groove 1402, and the second inclined plate 1403 will also rotate at the same time. With the help of the positioning pin 1404, the precise positioning of the rotary table 7 can be achieved.

[0036] Furthermore, a positioning pin 1404 is provided on the outer side of the positioning groove 1402. A telescopic spring 1405 is installed at one end of the positioning pin 1404, and a connecting block 1406 is provided at the other end of the telescopic spring 1405. The positioning pin 1404 forms a telescopic structure with the telescopic spring 1405 and the connecting block 1406. Under the action of the first stepper motor 6, the rotating worktable 7 rotates, and at the same time, the first inclined plate 1401, the positioning groove 1402, and the second inclined plate 1403 rotate. The positioning pin 1404 inside the positioning groove 1402... 04 Under the action of the rotation of the rotary worktable 7, the first inclined plate 1401 is gradually raised, the telescopic spring 1405 inside the positioning pin 1404 is compressed, and the positioning pin 1404 retracts accordingly. When it rotates to the second inclined plate 1403 behind the first inclined plate 1401, since the positioning pin 1404 is in close contact with the surface of the second inclined plate 1403, and the height of the second inclined plate 1403 gradually decreases during the rotation, the telescopic spring 1405 extends, so that the positioning pin 1404 is inserted into the next positioning groove 1402 for positioning and fixing.

[0037] Furthermore, the telescopic cylinder 1501 and the connecting base 1502 are welded together. The inner side of the connecting base 1502 is provided with a U-shaped mounting groove. A partition plate 1503 is installed on one side of the connecting base 1502. The telescopic cylinder 1501 can extend and retract the connecting base 1502, and when it is raised, it corresponds to the detection groove 8. The partition plate 1503 serves as a connection.

[0038] Furthermore, a second stepper motor 1504 is provided on the left side of the partition 1503, and a rotating block 1505 is slidably connected to the inner side of the connecting base 1502 through a slide groove. A reflector 1506 is installed on the upper end of the rotating block 1505. The second stepper motor 1504 passes through the partition 1503 and forms a keyed connection with the rotating block 1505. When the telescopic cylinder 1501 rises, the connecting base 1502 enters the detection groove 8. When detecting the camera glass cover, the second stepper motor 1504 is started to drive the rotating block 1505 with the reflector 1506 installed to adjust the angle, and the camera glass cover is detected by different angles.

[0039] Working principle: Install the device in the working position, then place the camera glass cover plate in the placement slot of the loading plate 10, and place the loading plate 10 on the placement base 9. The anti-slip pad on the upper surface of the placement base 9 increases friction to prevent the loading plate 10 from sliding. Place the clamping pressure plate 11, which connects the connecting bushing 13 and the connecting rod 12, inside the detection slot 8, in contact with the loading plate 10 to fix the cover plate. Start the first stepper motor 6 to drive the rotary table 7 to rotate. During rotation, the positioning pin 1404 in the positioning assembly 14 gradually rises through the first inclined plate 1401, the telescopic spring 1405 is compressed, and the positioning pin 1404 retracts. When the rotary table 7 rotates to the second inclined plate 1403 behind the first inclined plate 1401, the positioning pin 1404 inserts into the next positioning slot 14 under the extension of the telescopic spring 1405. Inside the 02 unit, precise positioning is achieved. The telescopic cylinder 1501 actuates, raising the connecting base 1502 to the corresponding position in the detection slot 8 to provide support for the inspection. The second stepper motor 1504 is activated, driving the rotating block 1505 to rotate via a key connection. The angle of the reflector 1506 is adjusted to inspect the camera glass cover from different angles. The reflector 1506 reflects light to check for appearance defects in the cover. After the inspection is completed, the telescopic cylinder 1501 retracts, the connecting base 1502 resets, and the first stepper motor 6 drives the rotating worktable 7 to rotate to the next inspection position. The above inspection process is repeated until all inspection tasks are completed. Finally, the clamping pressure plate 11 is removed, and the loading plate 10 and the cover are taken out, completing the entire inspection process. This completes the use of a camera glass cover appearance defect inspection and installation fixture.

[0040] 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 and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for detecting appearance defects in camera glass covers, comprising a fixed base (1), characterized in that: A support frame (2) is welded to the upper end of the fixed base (1). A support base (3) is provided on the outer side of the support frame (2). A connecting plate (4) is fixedly connected to the upper end of the support frame (2). An auxiliary roller (5) is rotatably connected to the inner side of the connecting plate (4). A first stepper motor (6) is provided on the inner side of the support frame (2). A rotary table (7) is installed on the upper end of the first stepper motor (6). A positioning component (14) is installed on the surface of the rotary table (7). The support frame (2) includes a first inclined plate (1401) installed on the surface of the rotary table (7), a positioning groove (1402) is provided on the right side of the first inclined plate (1401), a second inclined plate (1403) is provided on the right side of the positioning groove (1402), an angle adjustment component (15) is provided on the inner side of the support frame (2), the angle adjustment component (15) includes a telescopic cylinder (1501) installed on the inner side of the support frame (2), and a connecting base (1502) is installed on the upper end of the telescopic cylinder (1501).

2. The camera glass cover plate appearance defect detection and installation fixture according to claim 1, characterized in that, The fixed base (1) and the support frame (2) are welded together. The connecting plate (4) forms a rotating structure with the auxiliary roller (5) through the shaft. There are multiple sets of the connecting plate (4) and the auxiliary roller (5). The first stepper motor (6) and the rotary table (7) are connected by a flat key. The rotary table (7) is decagonal.

3. The camera glass cover plate appearance defect detection and installation fixture according to claim 2, characterized in that, The surface of the rotary worktable (7) is provided with a detection groove (8), and a placement base (9) is welded to the inner side of the detection groove (8). An anti-slip pad is adhered to the upper surface of the placement base (9). A loading plate (10) is provided above the placement base (9). A placement groove is provided on the inner side of the loading plate (10). A clamping pressure plate (11) is provided above the loading plate (10). A connecting rod (12) is fixedly connected to the upper surface of the clamping pressure plate (11). A connecting bushing (13) is welded to one end of the connecting rod (12).

4. The camera glass cover plate appearance defect detection and installation fixture according to claim 1, characterized in that, The first inclined plate (1401) is symmetrically arranged with the second inclined plate (1403) through the central axis of the positioning groove (1402). The first inclined plate (1401) is a triangular inclined surface, and the second inclined plate (1403) has the same shape and size as the first inclined plate (1401).

5. The camera glass cover plate appearance defect detection and installation fixture according to claim 4, characterized in that, A positioning pin (1404) is provided on the outside of the positioning groove (1402). A telescopic spring (1405) is installed on one end of the positioning pin (1404), and a connecting block (1406) is provided on the other end of the telescopic spring (1405). The positioning pin (1404) and the connecting block (1406) form a telescopic structure through the telescopic spring (1405) and the connecting block (1406).

6. The camera glass cover plate appearance defect detection and installation fixture according to claim 1, characterized in that, The telescopic cylinder (1501) and the connecting base (1502) are welded together. The inner side of the connecting base (1502) is provided with a U-shaped mounting groove, and a partition (1503) is installed on one side of the connecting base (1502).

7. A camera glass cover plate appearance defect detection and installation fixture according to claim 6, characterized in that, A second stepper motor (1504) is provided on the left side of the partition (1503). A rotating block (1505) is slidably connected to the inner side of the connecting base (1502) through a slide groove. A reflector (1506) is installed on the upper end of the rotating block (1505). The second stepper motor (1504) passes through the partition (1503) and forms a keyed connection with the rotating block (1505).