Dual surface flaw detection device for mobile phone glass cover plate

Abstract

The application discloses a double-surface flaw detection device for a mobile phone glass cover plate, and relates to the technical field of mobile phone glass cover plate flaw detection. The double-surface flaw detection device comprises a fixing base, a sliding mechanism, an image acquisition device, a clamping mechanism, a turnover mechanism and a limiting mechanism. The fixing base is provided with a sliding rail, and the sliding mechanism is in sliding connection with the sliding rail. The image acquisition device is used for acquiring the image of the surface of the mobile phone glass cover plate. The clamping mechanism is used for clamping or releasing the mobile phone glass cover plate. The turnover mechanism is used for turning over the clamping mechanism, so that the front surface or the back surface of the mobile phone glass cover plate faces the image acquisition device, and double-surface detection is realized. When the sliding mechanism slides along the sliding rail and the mobile phone glass cover plate abuts against the limiting mechanism, the clamping mechanism releases the mobile phone glass cover plate, so that the mobile phone glass cover plate can move relative to the clamping mechanism, and thus the detection blind area can be exposed.

Description

Technical Field

[0001] This invention relates to the field of mobile phone glass cover defect detection technology, and in particular to a dual-surface defect detection device for mobile phone glass covers. Background Technology

[0002] Current mobile phone glass cover inspection equipment typically relies solely on cameras for inspection. During the inspection process, the phone cover is fixed by a clamp, and the camera captures an image of the phone cover. The inspection method is relatively simple, resulting in the inability to fully inspect both the front and back of the phone glass cover. Furthermore, due to the obstruction of the clamp, some parts of the phone cover cannot be fully detected by the camera, creating blind spots in the inspection. Summary of the Invention

[0003] The purpose of this invention is to at least solve the technical problems of existing mobile phone glass cover inspection equipment, which suffers from limited detection methods, inability to comprehensively inspect both sides of the mobile phone glass cover, and the presence of blind spots. To this end, this invention provides a dual-surface defect detection device for mobile phone glass covers, capable of inspecting both sides of the mobile phone glass cover and also detecting blind spots caused by fixtures obstructing the inspection of the glass cover.

[0004] A dual-surface defect detection device for a mobile phone glass cover according to an embodiment of the present invention includes: a fixed base with a slide rail extending along a first linear direction; a sliding mechanism slidably connected to the slide rail; an image acquisition device fixedly disposed and used to acquire an image of the surface of the mobile phone glass cover; a clamping mechanism for clamping or releasing the mobile phone glass cover, the clamping mechanism being fixedly connected to the sliding mechanism; a flipping mechanism for flipping the clamping mechanism so that the front or back of the mobile phone glass cover faces the image acquisition device; and a limiting mechanism fixedly disposed; wherein, when the sliding mechanism slides along the slide rail and the mobile phone glass cover abuts against the limiting mechanism, the clamping mechanism releases the mobile phone glass cover so that the mobile phone glass cover can move relative to the clamping mechanism.

[0005] The dual-surface defect detection device for mobile phone glass covers according to embodiments of the present invention has at least the following beneficial effects: During operation, the sliding mechanism drives the clamping mechanism and the flipping mechanism to slide together along the slide rail. During the sliding process, the flipping mechanism can drive the clamping mechanism to flip, so that the front or back of the mobile phone glass cover faces the image acquisition device. The image acquisition device can acquire images of the front and back of the mobile phone glass cover, realizing dual-sided detection. Furthermore, when the mobile phone glass cover abuts against the limiting mechanism, the clamping mechanism will release the mobile phone glass cover. As the sliding mechanism continues to move, the mobile phone glass cover can be displaced relative to the clamping mechanism, so that the position of the mobile phone glass cover previously blocked by the clamping mechanism can be exposed. The image acquisition device can acquire images of this part of the area, thereby eliminating the detection blind spot and enabling more comprehensive defect detection of the mobile phone glass cover. The detection comprehensiveness and accuracy of the defect detection device are improved.

[0006] According to some embodiments of the present invention, the flipping mechanism includes a connecting seat, a rotating seat, and a steering control column. The connecting seat is fixedly connected to the sliding mechanism, the rotating seat is rotatably connected to the connecting seat, and the steering control column is fixedly connected to the rotating seat. The rotation axis of the steering control column is parallel to the rotation axis of the rotating seat and there is a gap between them. The clamping mechanism is fixedly connected to the rotating seat. The fixed seat is provided with a limiting groove. The steering control column is slidably connected to the limiting groove. The limiting groove includes a first horizontal groove, a flipping groove, and a second horizontal groove arranged sequentially along the first straight line direction. The first horizontal groove and the second horizontal groove extend along the first straight line direction. The distance from the flipping groove to the first horizontal groove in the second straight line direction first increases and then decreases from the distance from the first horizontal groove to the second horizontal groove. The second straight line direction is perpendicular to the first straight line direction. When the steering control column passes through the flipping groove, the rotating seat flips 180 degrees.

[0007] According to some embodiments of the present invention, the flipping groove is a V-shaped groove.

[0008] According to some embodiments of the present invention, the rotating seat is provided with an insertion hole, the clamping mechanism includes at least two clamping components, a portion of the structure of each clamping component is located within the insertion hole, each clamping component includes a clamping plate, a clamping seat, and a first elastic component, the clamping plates of the two clamping components are arranged sequentially in a vertical direction, the clamping plates are rotatably connected to the rotating seat, the first elastic component is connected between the clamping plates and the clamping seat, the limiting mechanism includes a mounting base, a stop bar, and a connector, the mounting base is fixedly disposed, the stop bar and the connector are connected to the mounting base, and the connector includes... The upper and lower cantilever arms have a distance that gradually decreases from the end of the limiting mechanism near the clamping mechanism to the end away from the clamping mechanism. When the clamping mechanism gradually approaches the limiting mechanism, the upper and lower cantilever arms are inserted into the insertion hole, and the two clamping pieces are located between the upper and lower cantilever arms. The upper and lower cantilever arms gradually clamp the two clamping pieces so that the two clamping pieces release the mobile phone glass cover, and the mobile phone glass cover abuts against the stop bar so that the mobile phone glass cover moves relative to the clamping mechanism.

[0009] According to some embodiments of the present invention, guide posts are provided on the opposite sides of the two clamping plates, and guide grooves are provided on the opposite sides of the upper and lower cantilever arms. When the guide grooves cooperate with the guide posts, the clamping mechanism releases the mobile phone glass cover.

[0010] According to some embodiments of the present invention, both clamping pieces are provided with sliding grooves, a portion of the structure of the guide post is located within the sliding groove, a second elastic component is provided between the guide post and the inner wall of the sliding groove, both the upper cantilever and the lower cantilever are provided with notches, the notches communicate with the guide groove, the inner wall of the notch is provided with a guide surface, when the clamping mechanism gradually approaches the limiting mechanism, the guide post passes through the guide groove and engages with the notch, and the clamping mechanism clamps the mobile phone glass cover, when the clamping mechanism gradually moves away from the limiting mechanism, the guide surface is used to guide the guide post away from the notch.

[0011] According to some embodiments of the present invention, the clamping piece is provided with clamping wheels, and the clamping mechanism clamps the mobile phone glass cover plate by means of the clamping wheels.

[0012] According to some embodiments of the present invention, the limiting mechanism includes a locking screw, the mounting base is provided with a threaded hole and an adjustment hole extending in a horizontal direction, the connector passes through the adjustment hole, and the locking screw is threadedly connected to the threaded hole to abut against the connector.

[0013] According to some embodiments of the present invention, the number of image acquisition devices is at least two, one of which is arranged at the position of the first horizontal slot and the other of which is arranged at the position of the second horizontal slot.

[0014] According to some embodiments of the present invention, the sliding mechanism is provided with an abutting wheel and a limit switch. When the abutting wheel abuts against the image acquisition device, the abutting wheel triggers the limit switch, and the image acquisition device is in an open state. When the abutting wheel disengages from the image acquisition device, the image acquisition device is in a closed state.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of a dual-surface defect detection device for a mobile phone glass cover according to some embodiments of the present invention (the clamping mechanism is located in the first horizontal groove).

[0018] Figure 2 This is a schematic diagram of the structure of a dual-surface defect detection device for mobile phone glass cover according to some embodiments of the present invention (the clamping mechanism is located in the flip groove and flipped 180 degrees).

[0019] Figure 3 This is a schematic diagram of the structure of a dual-surface defect detection device for a mobile phone glass cover according to some embodiments of the present invention (the clamping mechanism is located in the second horizontal groove).

[0020] Figure 4 This is a rear view of a dual-surface defect detection device for mobile phone glass covers according to some embodiments of the present invention;

[0021] Figure 5 This is a schematic diagram of the clamping mechanism, flipping mechanism and limiting mechanism of the dual-surface defect detection device for mobile phone glass cover according to some embodiments of the present invention.

[0022] Figure 6 This is a schematic diagram of the connector of the limiting mechanism of the dual-surface defect detection device for mobile phone glass cover according to some embodiments of the present invention.

[0023] Figure 7 This is a schematic diagram of the clamping mechanism, flipping mechanism and limiting mechanism of the dual-surface defect detection device for mobile phone glass cover according to some embodiments of the present invention.

[0024] Figure 8 for Figure 7Enlarged view of point A in the middle;

[0025] Figure 9 This is a top view of the guide post of the clamping mechanism of the dual-surface defect detection device for mobile phone glass covers according to some embodiments of the present invention.

[0026] Figure label:

[0027] Base 10, fixed seat 20, sliding mechanism 30, flipping mechanism 40, mobile phone glass cover 50, limiting mechanism 60, image acquisition device 70;

[0028] First horizontal groove 21, tilting groove 22, second horizontal groove 23, slide rail 24;

[0029] Abutment wheel 31;

[0030] Connecting seat 41, rotating seat 42, steering control column 43, upper clamping seat 44, lower clamping seat 45;

[0031] Tail seat 61, stop bar 62, mounting base 63, connector 64, upper cantilever 65, lower cantilever 66, locking screw 67;

[0032] Insertion hole 421, upper clamping piece 422, upper elastic element 423, upper hinge seat 424, upper guide post 425, upper slide groove 426, clamping wheel 427, lower clamping piece 428, lower elastic element 429, slide groove elastic element 430;

[0033] Lower guide groove 631, lower notch 632, second guide surface 633, second lifting surface 634, upper guide groove 635, upper notch 636, first guide surface 637, first lifting surface 638. Detailed Implementation

[0034] Reference Figure 1 As shown, the dual-surface defect detection device for mobile phone glass cover of this embodiment includes a base 10, a fixed base 20, a sliding mechanism 30, a clamping mechanism, a flipping mechanism 40, a limiting mechanism 60, and an image acquisition device 70.

[0035] Reference Figure 1As shown, the bottom of the fixed base 20 is fixedly connected to the base 10, and the top of the fixed base 20 is provided with a slide rail 24 extending along a first straight line direction, which is parallel to the horizontal plane. The sliding mechanism 30 is slidably connected to the slide rail 24. The image acquisition device 70 is fixedly connected to the base 10 and is located above the clamping mechanism. The image acquisition device 70 can be a camera module. The image acquisition device 70 is used to acquire images of the surface of the mobile phone glass cover 50, thereby detecting defects in the mobile phone glass cover 50. The clamping mechanism is used to clamp or release the mobile phone glass cover 50. In some embodiments, the clamping mechanism can be set as a gripper, and a driving component such as a cylinder or motor can be used to control the gripper to perform the clamping or releasing action.

[0036] The working principle of the dual-surface defect detection device is briefly described below. During operation, the sliding mechanism 30 drives the clamping mechanism and the flipping mechanism 40 to slide together along the slide rail 24. During the sliding process, the sliding mechanism 30 drives the mobile phone glass cover 50 on the clamping mechanism to pass through the image acquisition device 70. The flipping mechanism 40 can drive the clamping mechanism to flip 180 degrees, so that the front or back of the mobile phone glass cover 50 faces the image acquisition device 70. The image acquisition device 70 can acquire images of the front and back of the mobile phone glass cover 50, realizing dual-sided detection. Furthermore, when the mobile phone glass cover 50 abuts against the limiting mechanism 60, the clamping mechanism will release. If the clamping mechanism uses a drive component to clamp the mobile phone glass cover 50, a travel contact switch or other sensor can be used to detect whether the mobile phone glass cover 50 is in contact with the limiting mechanism 60. Then, as the sliding mechanism 30 continues to move, the mobile phone glass cover 50 can move relative to the clamping mechanism, so that the position of the mobile phone glass cover 50 previously covered by the clamping mechanism can be exposed. The image acquisition device 70 can acquire the image of this area, thereby eliminating the detection blind spot and enabling more comprehensive defect detection of the mobile phone glass cover 50. The detection comprehensiveness and accuracy of the defect detection device are improved.

[0037] It should be noted that the sliding mechanism 30 can be a slider, which can be driven by manually moving the slider, or it can be driven by electric cylinders, electric cylinders, telescopic rods and other drive components, which can drive the slider to move by linear extension and retraction. Alternatively, a power device can be set on the slider, which can drive the slider to move linearly on the slide rail 24 by its own power device.

[0038] In some embodiments, the flipping mechanism 40 may use a driving component (e.g., a motor) to drive the clamping mechanism to flip 180 degrees, so that the front or back of the mobile phone glass cover 50 faces the image acquisition device 70, thereby achieving double-sided detection.

[0039] In some other embodiments, the flipping mechanism 40 may not have a drive component, and the flipping of the mobile phone glass cover 50 may be achieved through some purely mechanical linkage mechanism. See below for details: Figure 5 As shown, the flipping mechanism 40 includes a connecting seat 41, a rotating seat 42, and a steering control column 43. The connecting seat 41 can be understood as a fixed piece, occupying a small space. The connecting seat 41 is fixedly connected to the lower part of the sliding mechanism 30, and is located on one side of the fixed seat 20, so it does not obstruct the movement of the sliding mechanism 30. The rotating seat 42 is rotatably engaged inside the connecting seat 41. The steering control column 43 is fixedly connected to the rotating seat 42, so that the steering control column 43 and the rotating seat 42 rotate together. The steering control column 43 is located on the front side of the rotating seat 42. The rotation axis of the steering control column 43 is parallel to the rotation axis of the rotating seat 42, and there is a certain distance between them. The rotating seat 42 can be rotated by guiding the movement of the steering control column 43. The clamping mechanism is fixedly connected to the rotating seat 42, so that the clamping mechanism and the rotating seat 42 rotate together. (Refer to...) Figure 4 As shown, the fixed base 20 has a limiting groove extending through it in the horizontal direction. The limiting groove is a strip-shaped groove. The steering control column 43 passes through the limiting groove and is slidably connected to it. The steering control column 43 has a cylindrical structure and can also rotate within the limiting groove. The limiting groove includes a first horizontal groove 21, a flip groove 22, and a second horizontal groove 23 arranged sequentially and interconnected along the first straight line direction. The first horizontal groove 21 and the second horizontal groove 23 extend along the first straight line direction. The distance from the flip groove 22 to the first horizontal groove 21 in the second straight line direction increases first and then decreases from the first horizontal groove 21 to the second horizontal groove 23. The second straight line direction is perpendicular to the first straight line direction and is perpendicular to the horizontal plane. The second straight line direction can be the up and down direction.

[0040] When the sliding mechanism 30 moves along the slide rail 24, it will drive the steering control column 43 to slide along the limiting groove. The steering control column 43 will sequentially pass through the first horizontal groove 21, the tilting groove 22, and the second horizontal groove 23, or sequentially pass through the second horizontal groove 23, the tilting groove 22, and the first horizontal groove 21. The following explanation uses the example of the steering control column 43 sequentially passing through the first horizontal groove 21, the tilting groove 22, and the second horizontal groove 23 as an example. Figure 1 As shown, when the steering control column 43 slides along the first horizontal groove 21, the rotation axis of the rotating seat 42 and the rotation axis of the steering control column 43 are located in the same horizontal plane. At this time, the mobile phone glass cover 50 is horizontally set and the front is facing upwards. Figure 2 As shown, when the steering control column 43 slides along the tilting groove 22, the tilting groove 22 guides the steering control column 43 to deviate from the extension direction of the first horizontal groove 21, causing the steering control column 43 to drive the rotating seat 42 to rotate. Figure 2In the middle, the steering control column 43 reaches the lowest position of the flip groove 22. At this time, the rotating seat 42 has been flipped 90 degrees, and the mobile phone glass cover 50 is in a vertical state. Figure 3 As shown, when the steering control column 43 passes through the flip groove 22 and reaches the second horizontal groove 23, the rotating seat 42 will eventually flip 180 degrees. At this time, the mobile phone glass cover 50 is set horizontally and the reverse side is facing up.

[0041] In this embodiment, without the need for a drive component, the sliding mechanism 30 provides power to drive the steering control column 43 to rotate in conjunction with the rotating seat 42, thereby achieving an automatic flipping function and reducing manufacturing costs.

[0042] In some embodiments, the flip groove 22 can be arc-shaped or semi-circular, such as... Figure 4 As shown, the flip groove 22 can also be a V-shaped groove, which has a better guiding effect.

[0043] like Figure 1 and Figure 2 As shown, there are at least two image acquisition devices 70, one of which is arranged in the first horizontal groove 21 and the other is arranged in the second horizontal groove 23. When the clamping mechanism is located in the first horizontal groove 21, the image acquisition device 70 detects the front side of the mobile phone glass cover 50. When the clamping mechanism is located in the second horizontal groove 23, the image acquisition device 70 detects the back side of the mobile phone glass cover 50, which can improve the detection efficiency.

[0044] In some other embodiments, the driving component for clamping or releasing may not be arranged on the clamping mechanism. Instead, the automatic clamping or releasing of the mobile phone glass cover 50 may be achieved through a linkage mechanism with a purely mechanical structure.

[0045] like Figure 7 and Figure 8As shown, the rotating base 42 is provided with an insertion hole 421. The clamping mechanism also includes an upper clamping base 44, a lower clamping base 45, an upper clamping plate 422, a lower clamping plate 428, an upper elastic element 423, and a lower elastic element 429. The upper clamping base 44 and the lower clamping base 45 are arranged one above the other and are both fixedly connected to one side of the rotating base 42. The upper clamping plate 422 and the lower clamping plate 428 are symmetrical to each other. The upper clamping plate 422 and the lower clamping plate 428 are inserted into the insertion hole 421. The upper clamping plate 422 is located above the lower clamping plate 428. Each of the plates 428 is rotatably connected to the rotating seat 42 via its respective hinge seat. The upper elastic element 423 is connected between the upper end of the upper clamping plate 422 and the lower end of the upper clamping seat 44. The upper clamping seat 44 supports the upper elastic element 423. The lower elastic element 429 is connected between the lower end of the lower clamping plate 428 and the upper end of the lower clamping seat 45. The lower clamping seat 45 supports the lower elastic element 429. Under the elastic force of the upper elastic element 423 and the lower elastic element 429, the upper clamping plate 422 and the lower clamping plate 428 clamp the mobile phone glass cover plate 50. When the upper clamping piece 422 and the lower clamping piece 428 are pressed within the insertion hole 421, the ends of the upper clamping piece 422 and the lower clamping piece 428 located within the insertion hole 421 gradually move closer together, while the ends of the upper clamping piece 422 and the lower clamping piece 428 located away from the insertion hole 421 gradually move away from each other. This stretches the upper elastic member 423 and the lower elastic member 429, thereby causing the upper clamping piece 422 and the lower clamping piece 428 to release the mobile phone glass cover 50. In some embodiments, multiple sets of clamping pieces and clamping seats can be arranged. For example, there are a total of four clamping pieces and four clamping seats, with each of the four clamping pieces corresponding to one of the four clamping seats, thus effectively clamping the mobile phone glass cover 50.

[0046] like Figure 5 and Figure 6 As shown, the limiting mechanism 60 includes a mounting base 63 and a connector 64. The mounting base 63 is fixedly connected to the base 10. The limiting mechanism 60 also includes a vertically arranged stop bar 62. The stop bar 62 and the connector 64 are connected to the mounting base 63. The connector 64 is used to extend into the insertion hole 421 to press the upper clamping piece 422 and the lower clamping piece 428. Specifically, the connector 64 includes an upper cantilever 65 and a lower cantilever 66. The upper cantilever 65 and the lower cantilever 66 are symmetrical to each other. The distance between the upper cantilever 65 and the lower cantilever 66 is... The distance between the limiting mechanism 60 and the clamping mechanism gradually decreases from the end of the limiting mechanism 60 that is close to the clamping mechanism to the end that is away from the clamping mechanism. The upper cantilever 65 has a first lifting surface 638 at the end close to the clamping mechanism, and the lower cantilever 66 has a second lifting surface 634 at the end close to the clamping mechanism. The second lifting surface 634 and the first lifting surface 638 can be understood as slopes. The distance between the second lifting surface 634 and the first lifting surface 638 in the vertical direction gradually decreases from the end of the limiting mechanism 60 that is close to the clamping mechanism to the end that is away from the clamping mechanism.

[0047] As the clamping mechanism gradually approaches the limiting mechanism 60, the upper cantilever 65 and the lower cantilever 66 are inserted into the insertion hole 421, and the upper clamping piece 422 and the lower clamping piece 428 are located between the upper cantilever 65 and the lower cantilever 66. Guided by the second lifting surface 634 and the first lifting surface 638, the upper cantilever 65 and the lower cantilever 66 gradually clamp the upper clamping piece 422 and the lower clamping piece 428. The ends of the upper clamping piece 422 and the lower clamping piece 428 inside the insertion hole 421 gradually move closer, and the ends of the upper clamping piece 422 and the lower clamping piece 428 outside the insertion hole 421 gradually move away, so that the upper clamping piece 422 and the lower clamping piece 428 release the mobile phone glass cover 50, and the mobile phone glass cover 50... The upper clamping plate 422 and the lower clamping plate 428 abut against the stop bar 62, causing the mobile phone glass cover 50 to move relative to the clamping mechanism. The area of ​​the mobile phone glass cover 50 that was covered by the upper clamping plate 422 and the lower clamping plate 428 will be exposed. When the sliding mechanism 30 drives the clamping mechanism to reset, that is, the clamping mechanism gradually moves away from the limiting mechanism 60, the upper cantilever 65 and the lower cantilever 66 will disengage from the insertion hole 421. Under the elastic force of the upper elastic member 423 and the lower elastic member 429, the upper clamping plate 422 and the lower clamping plate 428 will automatically reset and clamp the mobile phone glass cover 50. When the sliding mechanism 30 resets, it will pass through the image acquisition device 70, which can re-detect this part of the detection blind area, realize comprehensive detection, and improve detection accuracy.

[0048] It should also be noted that this embodiment achieves automatic release when the clamping mechanism is in place and automatic clamping when the clamping mechanism is reset without arranging a driving component, which can reduce manufacturing costs. The entire process only requires the sliding mechanism 30 to provide power.

[0049] To ensure stable movement, such as Figure 6 and Figure 8 As shown, in some embodiments, the top of the upper clamping piece 422 is provided with an upper guide post 425, which is a cylindrical structure and is located inside the insertion hole 421. The bottom of the lower clamping piece 428 is provided with a lower guide post, which is also a cylindrical structure and is located inside the insertion hole 421. The bottom of the upper cantilever 65 is provided with an upper guide groove 635 for cooperating with the upper guide post 425, and the top of the lower cantilever 66 is provided with a lower guide groove 631 for cooperating with the lower guide post. When the upper cantilever 65 and the lower cantilever 66 are inserted into the insertion hole 421, the lower guide groove 631 and the upper guide groove 635 are respectively used to guide the upper guide post 425 and the lower guide post to move along the corresponding cantilever, which can avoid deviation and improve movement stability. The upper cantilever 65 and the lower cantilever 66 release the mobile phone glass cover 50 by squeezing the upper guide post 425 and the lower guide post.

[0050] like Figure 8 and Figure 9As shown, in some embodiments, the upper clamping piece 422 is provided with an upper sliding groove 426, the extension direction of which is perpendicular to the length direction of the connector 64. A portion of the structure of the upper guide post 425 is located within the upper sliding groove 426, and the upper end of the upper guide post 425 protrudes outside the upper sliding groove 426. A sliding groove elastic member 430 is provided between the upper guide post 425 and the inner wall of the upper sliding groove 426. The upper guide post 425 can compress the sliding groove elastic member 430 and slide within the upper sliding groove 426. The elastic force of the sliding groove elastic member 430 keeps the upper guide post 425 in its initial position. Similarly, the lower clamping piece 428 is provided with a lower sliding groove, the extension direction of which is perpendicular to the length direction of the connector 64. A portion of the structure of the lower guide post is located within the lower sliding groove, and the lower end of the lower guide post protrudes outside the lower sliding groove. A sliding groove elastic member 430 is also provided between the lower guide post and the inner wall of the lower sliding groove.

[0051] like Figure 6 As shown, the lower cantilever 66 has a lower notch 632 communicating with the lower guide groove 631. The lower notch 632 is located at the end of the lower guide groove 631 away from the clamping mechanism. The inner wall of the lower notch 632 has a second guide surface 633, which guides the upper guide post 425 away from the lower notch 632. Similarly, the upper cantilever 65 has an upper notch 636 communicating with the upper guide groove 635. The upper notch 636 is located at the end of the upper guide groove 635 away from the clamping mechanism. The inner wall of the lower notch 632 has a first guide surface 637, which guides the lower guide post away from the upper notch 636. The second guide surface 633 and the first guide surface 637 can be inclined surfaces.

[0052] As the clamping mechanism gradually approaches the limiting mechanism 60, the upper guide post 425 enters the upper guide groove 635, and the lower guide post enters the lower guide groove 631, serving a guiding function. At this time, due to the upper cantilever 65 and the lower cantilever 66 pressing the upper clamping piece 422 and the lower clamping piece 428, the upper clamping piece 422 and the lower clamping piece 428 will release the mobile phone glass cover 50, and the mobile phone glass cover 50 will abut against the stop bar 62. The mobile phone glass cover 50 can be displaced relative to the upper clamping piece 422 and the lower clamping piece 428, thus revealing a detection blind zone and preventing damage to the mobile phone glass cover 50. This causes scratches. When the upper guide post 425 passes through the upper guide groove 635 and the lower guide post passes through the lower guide groove 631, the upper guide post 425 will be engaged with the upper notch 636 after losing the pressure of the upper guide groove 635, and the lower guide post will be engaged with the lower notch 632 after losing the pressure of the lower guide groove 631. At this time, the upper clamping piece 422 and the lower clamping piece 428 will quickly resume clamping the mobile phone glass cover 50. This action is particularly critical, as it can prevent the clamping mechanism from loosening the mobile phone glass cover 50 during the reset process, which would cause the mobile phone glass cover 50 to easily fall off the clamping mechanism. When the sliding mechanism 30 drives the clamping mechanism to reset and gradually moves away from the limiting mechanism 60, the first guide surface 637 guides the upper guide post 425 away from the upper notch 636, and the second guide surface 633 guides the lower guide post away from the lower notch 632. At this time, the upper guide post 425 and the lower guide post will compress their respective slide groove elastic elements 430. The upper guide post 425 will move along the upper slide groove 426, and the lower guide post will move along the lower slide groove. The moving direction of the upper guide post 425 and the lower guide post is perpendicular to the length direction of the connector 64, so that the upper guide post 425 will disengage from the upper notch 636, and the lower guide post will disengage from the lower notch 632. Thus, the upper guide post 425 and the lower guide post move to the outer wall position of the connector 64. At this time, the connector 64 can disengage from the locking position of the upper and lower guide posts, so that the clamping mechanism can be reset.

[0053] like Figure 8 As shown, in some embodiments, clamping wheels 427 are provided on the sides of the upper clamping piece 422 and the lower clamping piece 428 that are close to each other. The upper clamping piece 422 and the lower clamping piece 428 clamp the mobile phone glass cover plate 50 through the clamping wheels 427. The clamping wheels 427 and the mobile phone glass cover plate 50 are in line contact, with a small contact area, resulting in less damage to the mobile phone glass cover plate 50. When the clamping structure releases the mobile phone glass cover plate 50, the frictional force of the clamping wheels 427 on the mobile phone glass cover plate 50 is small, making it convenient for the mobile phone glass cover plate 50 to move relative to the clamping wheels 427 when it abuts against the stop bar 62. It should be noted that the clamping wheels 427 are fixed and cannot rotate to prevent the mobile phone glass cover plate 50 from falling off during the clamping process due to the rotation of the clamping wheels 427.

[0054] like Figure 5As shown, in some embodiments, the limiting mechanism 60 further includes a locking screw 67. The mounting base 63 is provided with a threaded hole and an adjustment hole extending in the horizontal direction. The plug-in 64 is horizontally inserted into the adjustment hole. The locking screw 67 is threadedly connected to the threaded hole to abut against the plug-in 64. When the locking screw 67 is loosened, the extension position of the plug-in 64 in the horizontal direction can be adjusted, thereby adjusting the position of the plug-in 64 extending into the insertion hole 421, so that the plug-in 64 can better cooperate with the upper clamping piece 422 and the lower clamping piece 428 in the insertion hole 421 to realize the automatic clamping or loosening action.

[0055] Understandably, if the image acquisition device 70 is always on, it is easy for a large number of video files to occupy storage space, thereby reducing the lifespan of the image acquisition device 70.

[0056] like Figure 5 As shown, in some embodiments, the sliding mechanism 30 is provided with abutting wheels 31 and limit switches at both ends along the extension direction of the slide rail 24. When the abutting wheel 31 abuts against the image acquisition device 70, it indicates that the mobile phone glass cover 50 has entered the image acquisition range. The abutting wheel 31 triggers the limit switch, and the limit switch sends a limit signal to the controller. After receiving the limit signal, the controller controls the image acquisition device 70 to switch to the open state. When the abutting wheel 31 disengages from the image acquisition device 70, it indicates that the mobile phone glass cover 50 is outside the image acquisition range. The abutting wheel 31 will not trigger the limit switch, and the image acquisition device 70 is in the closed state. That is to say, the image acquisition device 70 will only start after the abutting wheel 31 contacts the limit switch to acquire images of the mobile phone glass cover 50 that will enter the image acquisition range next. This can avoid the image acquisition device 70 from being in the open state all the time, thereby improving the service life of the image acquisition device 70.

[0057] The working principle of the dual-surface defect detection device for mobile phone glass covers will be explained in detail below: In use, the mobile phone glass cover 50 is first inserted between the upper clamping piece 422 and the lower clamping piece 428. Under the elastic force of the upper elastic member 423 and the lower elastic member 429, the abutment wheel 31 between the upper clamping piece 422 and the lower clamping piece 428 will clamp the mobile phone glass cover 50. Then, the sliding mechanism 30 is activated, and the sliding mechanism 30 moves along the slide rail 24. Simultaneously, the sliding mechanism 30 drives the steering control column 43 of the clamping mechanism to slide along the limiting groove. Figure 1 As shown, when the steering control column 43 slides within the first horizontal groove 21, the phone glass cover 50 is in a horizontal state with its front facing upwards. The image acquisition device 70 acquires an image of the front of the phone glass cover 50, and then... Figure 2As shown, when the steering control column 43 passes through the flip groove 22, the flip groove 22 guides the steering control column 43 to deviate from the first horizontal groove 21. The steering control column 43 will drive the rotating seat 42 to rotate, thereby realizing the flipping of the mobile phone glass cover 50. Figure 3 As shown, when the steering control column 43 moves to the position of the second horizontal groove 23, the mobile phone glass cover 50 is flipped 180 degrees, and the mobile phone glass cover 50 is in a horizontal state with the reverse side facing up. The image acquisition device 70 acquires an image of the reverse side of the mobile phone glass cover 50. Then, the clamping mechanism gradually approaches the limiting mechanism 60, the upper cantilever 65 and the lower cantilever 66 are inserted into the insertion hole 421, the upper guide column 425 enters the upper guide groove 635, and the lower guide column enters the lower guide groove 631. Under the guidance of the second lifting surface 634 and the first lifting surface 638, the upper guide groove 635 and the lower guide groove 631 respectively squeeze... The upper guide post 425 and the lower guide post gradually move closer together, and the upper elastic element 423 and the lower elastic element 429 are stretched. At this time, the upper clamping piece 422 and the lower clamping piece 428 gradually release the mobile phone glass cover 50. Then, the mobile phone glass cover 50 abuts against the stop bar 62. The sliding mechanism 30 continues to drive the clamping mechanism to move, causing the mobile phone glass cover 50 to shift relative to the upper clamping piece 422 and the lower clamping piece 428. This exposes the area on the surface of the mobile phone glass cover 50 that was previously covered by the upper clamping piece 422 and the lower clamping piece 428, thereby eliminating the detection blind zone. The upper guide post 425 engages with the upper notch 636, and the lower guide post engages with the lower notch 632. The upper guide groove 635 and the lower guide groove 631 no longer press against the upper guide post 425 and the lower guide post. Under the elastic force of the upper elastic element 423 and the lower elastic element 429, the upper clamping piece 422 and the lower clamping piece 428 quickly resume clamping the mobile phone glass cover 50. Then, the sliding mechanism 30 drives the clamping mechanism to reset, and the clamping mechanism gradually moves away from the limiting mechanism 60. At this time, the first guide surface 637 presses against the upper guide post 425 and guides it away from the upper notch 636. The upper guide post 425 will compress the sliding groove elastic element 423. 30. The upper guide post 425 moves along the upper slide groove 426. Similarly, the second guide surface 633 presses the lower guide post and guides it away from the lower notch 632. The lower guide post will compress the slide groove elastic element 430. The lower guide post moves along the lower slide groove. After the upper guide post 425 leaves the lower upper notch 636 and the lower guide post leaves the notch 632, the clamping mechanism is no longer engaged with the limiting mechanism 60. The clamping mechanism can smoothly disengage from the limiting mechanism 60. During the reset process, the clamping mechanism will also pass through the image acquisition device 70. The image acquisition device 70 can detect the blind spots on the front and back of the mobile phone glass cover 50.

[0058] It should be noted that the elastic element described in the above embodiments can be a spring, a sheet, or other elastic structure.

[0059] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, inside, outside, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0060] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0061] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-surface defect detection device for mobile phone glass covers, characterized in that, include: The fixed base is provided with a slide rail extending along a first straight line direction; A sliding mechanism is slidably connected to the slide rail; An image acquisition device, fixedly installed and used to acquire an image of the surface of a mobile phone glass cover; A clamping mechanism is used to clamp or release the mobile phone glass cover, and the clamping mechanism is fixedly connected to the sliding mechanism; A flipping mechanism is provided for flipping the clamping mechanism. The flipping mechanism includes a connecting seat, a rotating seat, and a steering control column. The connecting seat is fixedly connected to the sliding mechanism, the rotating seat is rotatably connected to the connecting seat, and the steering control column is fixedly connected to the rotating seat. The rotation axis of the steering control column is parallel to and spaced apart from the rotation axis of the rotating seat. The clamping mechanism is fixedly connected to the rotating seat. The fixed seat has a limiting groove, and the steering control column is slidably connected to the limiting groove. The limiting groove includes a first horizontal groove, a flipping groove, and a second horizontal groove arranged sequentially along a first straight line. The first horizontal groove and the second horizontal groove extend along the first straight line, and the flipping groove extends along the second straight line. The distance from the first horizontal groove to the second horizontal groove first increases and then decreases. The second straight line direction is perpendicular to the first straight line direction. When the steering control column passes the flip groove, the rotating seat flips 180 degrees so that the front or back of the mobile phone glass cover faces the image acquisition device. The rotating seat is provided with a socket. The clamping mechanism includes at least two clamping components. Part of the structure of the clamping component is located in the socket. The clamping component includes a clamping piece, a clamping seat, and a first elastic component. The clamping pieces of the two clamping components are arranged sequentially in the vertical direction. The clamping pieces are rotatably connected to the rotating seat. The first elastic component is connected between the clamping piece and the clamping seat. A limiting mechanism is fixedly installed. The limiting mechanism includes a mounting base, a stop bar, and a connector. The mounting base is fixedly installed, and the stop bar and the connector are connected to the mounting base. The connector includes an upper cantilever and a lower cantilever. The distance between the upper and lower cantilever gradually decreases from the end of the limiting mechanism closer to the clamping mechanism to the end away from the clamping mechanism. When the clamping mechanism gradually approaches the limiting mechanism, the upper and lower cantilever inserts into the insertion hole, and the two clamping pieces are located between the upper and lower cantilever. The upper and lower cantilever gradually clamp the two clamping pieces, so that the two clamping pieces release the mobile phone glass cover. The mobile phone glass cover abuts against the stop bar, so that the mobile phone glass cover moves relative to the clamping mechanism. When the sliding mechanism slides along the slide rail and the mobile phone glass cover abuts against the limiting mechanism, the clamping mechanism releases the mobile phone glass cover so that the mobile phone glass cover can move relative to the clamping mechanism.

2. The dual-surface defect detection device for mobile phone glass covers according to claim 1, characterized in that, The flipping groove is a V-shaped groove.

3. The dual-surface defect detection device for mobile phone glass covers according to claim 1, characterized in that, The two clamping plates are provided with guide posts on their opposite sides, and the upper and lower cantilever arms are provided with guide grooves on their opposite sides. When the guide grooves engage with the guide posts, the clamping mechanism releases the mobile phone glass cover.

4. The dual-surface defect detection device for mobile phone glass covers according to claim 3, characterized in that, Both clamping plates are provided with sliding grooves. Part of the structure of the guide post is located in the sliding groove. A second elastic component is provided between the guide post and the inner wall of the sliding groove. Both the upper cantilever and the lower cantilever are provided with notches. The notches are connected to the guide groove. The inner wall of the notches is provided with a guide surface. When the clamping mechanism gradually approaches the limiting mechanism, the guide post passes through the guide groove and engages with the notch. The clamping mechanism clamps the mobile phone glass cover. When the clamping mechanism gradually moves away from the limiting mechanism, the guide surface guides the guide post away from the notch.

5. The dual-surface defect detection device for mobile phone glass covers according to claim 1, characterized in that, The clamping piece is equipped with clamping wheels, and the clamping mechanism clamps the mobile phone glass cover through the clamping wheels.

6. The dual-surface defect detection device for mobile phone glass covers according to claim 1, characterized in that, The limiting mechanism includes a locking screw, the mounting base has a threaded hole and an adjustment hole extending in the horizontal direction, the connector passes through the adjustment hole, and the locking screw is threadedly connected to the threaded hole to abut against the connector.

7. The dual-surface defect detection device for mobile phone glass covers according to claim 1, characterized in that, The number of image acquisition devices is at least two, with one image acquisition device arranged at the position of the first horizontal groove and the other image acquisition device arranged at the position of the second horizontal groove.

8. The dual-surface defect detection device for mobile phone glass covers according to claim 1, characterized in that, The sliding mechanism is equipped with an abutting wheel and a limit switch. When the abutting wheel abuts against the image acquisition device, the abutting wheel triggers the limit switch, and the image acquisition device is in the open state. When the abutting wheel disengages from the image acquisition device, the image acquisition device is in the closed state.

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