Appearance defect detection device for camera glass cover plate

Abstract

The invention discloses a camera glass cover plate appearance defect detection device, and relates to the technical field of glass cover plate detection.The camera glass cover plate appearance defect detection device comprises a base, a machine table arranged on the base, a transmission assembly and a linkage assembly, and two clamping blocks used for clamping a glass cover plate body are reversely, horizontally and slidably connected to the base; two side plates are symmetrically and fixedly connected to the base, two first sliding blocks are reversely and slidably connected between the two side plates, the bottoms of the two first sliding blocks are connected with cleaning plates through elastic units, a connecting block is vertically and slidably connected to one side of the machine table, and a detection head is rotatably connected to the bottom of the connecting block; the two first sliding blocks sequentially have a first stroke and a second stroke in the reverse sliding process, the two cleaning plates and the two clamping blocks are clamped and matched in a one-to-one correspondence mode, and the transmission assembly is driven by the second strokes of the two first sliding blocks so that the connecting block can move upwards. And the linkage assembly is driven by the vertical upward movement of the connecting block to enable the detection head to swing in a reciprocating manner.

Description

Technical Field

[0001] The present invention relates to the technical field of glass cover plate detection, and specifically provides a device for detecting appearance defects of a camera glass cover plate. Background Art

[0002] Glass cover plates are widely used in various electronic devices, especially in electronic devices such as tablets, mobile phones, digital TVs, and home appliances. The glass cover plates not only cover the display area of the product but also cover the camera area to protect the camera. However, since it is close to the camera, if there are fine scratches or dust particle residues on the glass cover plate, it will affect the shooting effect. Therefore, a vision detection device is usually installed on the detection top plate, and the glass to be detected is placed below, and a comprehensive detection of the surface of the screen glass is realized through the vision detection device and manual visual inspection.

[0003] For example, the Chinese patent with the publication number CN211402189U and the name "Device for Detecting Appearance Defects of Mobile Phone Camera Glass Cover Plate" includes a frame, a fixture, a first linear motor, a camera, a light source, and a projector. An industrial computer and a controller are provided below the frame. The industrial computer is electrically connected to the controller, the first linear motor, the camera, the light source, and the projector respectively. A workbench is provided on the upper end surface of the frame. The first linear motor is arranged in parallel on the workbench. The fixture is fixedly connected to the slider of the first linear motor and reciprocates along the first linear motor. The light source is arranged below the camera, and the camera and the light source are arranged above the first linear motor and slide left and right. A plurality of accommodating parts for accommodating the camera glass cover plate are recessed on the upper end surface of the fixture. The technical solution of the present invention has high detection accuracy, high automation degree, convenient operation, can greatly reduce the number of traditional visual inspection personnel, and has strong practicability.

[0004] Although the device for detecting appearance defects of the mobile phone camera glass cover plate in the above patent is practical and convenient, it also has deficiencies. Since the lengths of each glass cover plate are different, the required detection area is different. If the distance between the detection head and the surface of the glass cover plate is too close, the area of the detection image will be incomplete, resulting in missed detection. If the distance is too far, the detection image will be unclear. At the same time, the surface of the glass cover plate is easily attached with dust, which is likely to affect the detection effect presented by the detection image. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for detecting appearance defects of a camera glass cover plate to solve the above deficiencies in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: The appearance defect detection device for the camera glass cover plate includes a base, a machine table arranged on the base, a transmission component, and a linkage component. Two clamping blocks for clamping the glass cover plate body are horizontally and reversely slidably connected to the base. Two side plates are symmetrically and fixedly connected to the base. Two first sliders are reversely slidably connected between the two side plates. The bottom of each of the two first sliders is connected to a cleaning plate through an elastic unit. A connecting block is vertically slidably connected to one side of the machine table. The bottom of the connecting block is rotatably connected to a detection head. During the reverse sliding process of the two first sliders, each has a first stroke and a second stroke in sequence. The two cleaning plates are in clamping cooperation with the two clamping blocks in a one-to-one correspondence. The transmission component is driven by the second stroke of the two first sliders to move the connecting block upward, and the linkage component is driven by the vertical upward movement of the connecting block to make the detection head swing reciprocally.

[0007] Further, the transmission component includes two brackets, two second sliders, two first connecting columns, two connecting rods, and two second connecting columns. Two first chutes are symmetrically and vertically opened on one side of the machine table. The two second sliders are vertically slidably matched with the two first chutes in a one-to-one correspondence. The two brackets are vertically slidably connected to the two first chutes in a one-to-one correspondence. Both brackets are fixedly connected to one side of the connecting block. The two second connecting columns are fixedly connected to the two first sliders in a one-to-one correspondence. One end of each of the two connecting rods is rotatably sleeved with the two first connecting columns in a one-to-one correspondence. The two first connecting columns are fixedly connected to the two second sliders in a one-to-one correspondence. The other end of each of the two connecting rods is rotatably sleeved with the two second connecting columns in a one-to-one correspondence. The top of the two second sliders is in abutting cooperation with the bottom of the two brackets in a one-to-one correspondence.

[0008] Further, the linkage component includes a connecting plate, a rotating rod, a synchronous belt, a first bevel gear, a second bevel gear meshing with the first bevel gear, a rack meshing with the second bevel gear, and a rotating plate. The connecting plate is rotatably connected inside the connecting block. The bottom end of the connecting plate is detachably connected to the detection head. One side of the connecting plate is fixedly connected to the rotating plate. A second rotating shaft and a third rotating shaft are vertically rotatably connected inside the connecting block. The rotating rod and the first bevel gear are respectively fixedly connected to the bottom ends of the second rotating shaft and the third rotating shaft. Two helical grooves connected end to end are formed on the rotating rod. A protrusion is provided on one side of the rotating plate. The protrusion is slidably matched with the two helical grooves in sequence. The second rotating shaft and the third rotating shaft are connected by a synchronous belt. The second bevel gear is rotatably connected inside the connecting block. A guiding groove is vertically opened on one side of the machine table. The rack is vertically arranged in the guiding groove.

[0009] Further, two second chutes are horizontally and symmetrically opened on one side of the machine table. The two second chutes communicate with the two first chutes in a one-to-one correspondence. The two second sliders are slidably matched with the two second chutes in a one-to-one correspondence.

[0010] Further, second guide rods are vertically arranged in the two first sliding grooves, third springs are arranged between the tops of the two brackets and the groove walls of the first sliding grooves, and the two second guide rods are sleeved with the two third springs in a one-to-one correspondence.

[0011] Further, a screw rod is rotatably connected between the two side plates. The screw rod has a first threaded section and a second threaded section with opposite helix directions. Threaded holes are respectively formed in the two first sliders. One of the first sliders is in threaded connection with the first threaded section, and the other first slider is in threaded connection with the second threaded section. A first guide rod is horizontally arranged between the two side plates, and the two first sliders are both slidably sleeved on the first guide rod.

[0012] Further, the two elastic units both include second telescopic rods and second springs sleeved on the second telescopic rods. The tops of the two second telescopic rods are fixedly connected with the bottoms of the two first sliders in a one-to-one correspondence, and the bottoms of the two second telescopic rods are fixedly connected with the tops of the two cleaning plates in a one-to-one correspondence.

[0013] Further, a positioning groove is arranged in each of the two clamping blocks. The two cleaning plates are in clamping fit with the two positioning grooves in a one-to-one correspondence. A fixing block is arranged in each of the two grooves. The tops of the two fixing blocks are triangular with the tips facing upward. The two fixing blocks are in sliding abutting fit with the two cleaning plates.

[0014] Further, a first telescopic rod is arranged on each of the two sides of the two clamping blocks away from each other. The ends of the two first telescopic rods away from each other are fixedly connected with the two side plates in a one-to-one correspondence. First springs are sleeved on the two first telescopic rods.

[0015] Further, a motor is arranged on the base, and the output end of the motor is coaxially and fixedly connected with one end of the screw rod.

[0016] Compared with the prior art, the beneficial effects provided by the present invention are as follows: The appearance defect detection device for the camera glass cover plate clamps and fixes the glass cover plate body through two clamping blocks. The two first sliders drive the two cleaning plates to clean the surface of the glass cover plate body through the two elastic units, improving the detection effect. When the length of the glass cover plate body is too long, the driving component drives the connecting block to drive the detection head to move upward to expand the detection range of the detection head. At the same time, the linkage component drives the detection head to swing reciprocally to further expand the detection range of the detection head, and scans and detects the surface of the glass cover plate body to avoid missed detection and ensure clear detection images. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present invention;

[0019] Figure 2 Upper view of the overall structure provided by the embodiment of the present invention;

[0020] Figure 3 For Figure 2 Cross-sectional view at A-A in

[0021] Figure 4 For Figure 3 Enlarged view at B in

[0022] Figure 5 For Figure 3 Cross-sectional view at D-D in

[0023] Figure 6 For Figure 2 Cross-sectional view at C-C in

[0024] Figure 7 For Figure 6 Cross-sectional view at E-E in

[0025] Figure 8 Schematic diagram of the linkage assembly provided by the embodiment of the present invention.

[0026] Explanation of reference numerals: 1, base; 2, motor; 3, side plate; 4, clamping block; 5, first telescopic rod; 6, first spring; 7, glass cover plate body; 8, cleaning plate; 9, second telescopic rod; 10, second spring; 11, first slider; 12, screw rod; 13, first guide rod; 14, positioning groove; 15, rotating plate; 16, fixed block; 17, detection head; 18, connecting block; 19, bracket; 20, second guide rod; 21, third spring; 22, first chute; 23, second chute; 24, second slider; 25, first connecting column; 26, connecting rod; 27, second connecting column; 28, machine table; 29, groove; 30, connecting plate; 31, first rotating shaft; 32, rotating rod; 33, spiral groove; 34, second rotating shaft; 35, synchronous belt; 36, third rotating shaft; 37, first bevel gear; 38, second bevel gear; 39, rack; 40, guide groove. Detailed implementation manners

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Please refer to Figure 1-8 , a technical solution provided by an embodiment of the present invention: the appearance defect detection device for the camera glass cover plate includes a base 1, a machine table 28 arranged on the base 1, a transmission component and a linkage component. Two clamping blocks 4 for clamping the glass cover plate body 7 are horizontally slidably connected reversely on the base 1. Two side plates 3 are symmetrically and fixedly connected to the base 1. Two first sliders 11 are slidably connected reversely between the two side plates 3. The bottom of each of the two first sliders 11 is connected to a cleaning plate 8 through an elastic unit. A connecting block 18 is vertically slidably connected to one side of the machine table 28. The bottom of the connecting block 18 is rotatably connected to a detection head 17. During the reverse sliding process of the two first sliders 11, each has a first stroke and a second stroke in sequence. The two cleaning plates 8 are in clamping cooperation with the two clamping blocks 4 in a one-to-one correspondence. The transmission component is driven by the second stroke of the two first sliders 11 to move the connecting block 18 upward, and the linkage component is driven by the vertical upward movement of the connecting block 18 to make the detection head 17 swing reciprocally.

[0029] As a preferred technical solution, the transmission component includes two brackets 19, two second sliders 24, two first connecting columns 25, two connecting rods 26 and two second connecting columns 27. Two first chutes 22 are symmetrically and vertically opened on one side of the machine table 28. The two second sliders 24 are vertically slidably matched with the two first chutes 22 in a one-to-one correspondence. The two brackets 19 are vertically slidably connected to the two first chutes 22 in a one-to-one correspondence. The two brackets 19 are both fixedly connected to one side of the connecting block 18. The two second connecting columns 27 are fixedly connected to the two first sliders 11 in a one-to-one correspondence. One end of each of the two connecting rods 26 is rotatably sleeved with the two first connecting columns 25 in a one-to-one correspondence. The two first connecting columns 25 are fixedly connected to the two second sliders 24 in a one-to-one correspondence. The other end of each of the two connecting rods 26 is rotatably sleeved with the two second connecting columns 27 in a one-to-one correspondence. The tops of the two second sliders 24 are in abutting cooperation with the bottoms of the two brackets 19 in a one-to-one correspondence. Specifically, during the first stroke of the two second sliders 24, the two second sliders 24 move in a direction away from each other to avoid obstructing the scanning and detection of the detection head 17. When the length of the glass cover plate body 7 is too long, the two second sliders 24 continue the second stroke. The two first connecting columns 25 move away from each other in the horizontal position and drive the two connecting rods 26 to rotate. The two first connecting columns 25 move vertically upward along with the two connecting rods 26. At the same time, the two second sliders 24 push the two brackets 19 upward, realizing that the connecting block 18 drives the detection head 17 to move upward to expand the detection range of the detection head 17, improve the detection effect, and make the detection image clearer.

[0030] As a preferred technical solution, the linkage assembly includes a connecting plate 30, a rotating rod 32, a synchronous belt 35, a first bevel gear 37, a second bevel gear 38 meshing with the first bevel gear 37, a rack 39 meshing with the second bevel gear 38, and a rotating plate 15. The connecting plate 30 is rotatably connected in the connecting block 18. The bottom end of the connecting plate 30 is detachably connected to the detection head 17. One side of the connecting plate 30 is fixedly connected to the rotating plate 15. A second rotating shaft 34 and a third rotating shaft 36 are vertically and rotatably connected in the connecting block 18. The rotating rod 32 and the first bevel gear 37 are respectively fixedly connected to the bottom ends of the second rotating shaft 34 and the third rotating shaft 36. Two helical grooves 33 connected end to end are formed on the rotating rod 32. A protrusion is provided on one side of the rotating plate 15. The protrusion is slidably engaged with the two helical grooves 33 in sequence. The second rotating shaft 34 and the third rotating shaft 36 are connected by a synchronous belt 35. The second bevel gear 38 is rotatably connected in the connecting block 18. A guiding groove 40 is vertically formed on one side of the machine table 28. The rack 39 is vertically arranged in the guiding groove 40. Specifically, a first rotating shaft 31 is inserted into the connecting plate 30. When the connecting block 18 drives the detection head 17 to move upward, a plurality of inclined teeth are equidistantly arranged on the rack 39. Through the meshing of the second bevel gear 38 and the rack 39, the first bevel gear 37 is driven to rotate. And through the transmission of the synchronous belt 35, the rotating rod 32 rotates. Through the sliding engagement of the protrusion and the two helical grooves 33, one end of the rotating plate 15 close to the protrusion swings reciprocally. The detection head 17 is driven by the connecting plate 30 to swing reciprocally, further expanding the scanning detection area of the detection head 17 and improving the detection effect on the surface of the glass cover body 7.

[0031] As a preferred technical solution, two second sliding grooves 23 are horizontally and symmetrically formed on one side of the machine table 28. The two second sliding grooves 23 communicate with the two first sliding grooves 22 in a one-to-one correspondence. The two second sliding blocks 24 are slidably engaged with the two second sliding grooves 23 in a one-to-one correspondence. Specifically, in the first stroke of the two first sliding blocks 11 sliding in the direction away from each other, the two second sliding blocks 24 are driven to slide in the corresponding second sliding grooves 23 through the corresponding connecting rods 26. At this time, the connecting block 18 does not move upward, and the two first sliding blocks 11 do not block the scanning detection of the detection head 17. This is the lowest detection distance of the detection head 17. The glass cover body 7 within this length range can be clearly and completely scanned and detected by the detection head 17. Preferably, cleaning sponges are provided on the tops of the two first sliding blocks 11, and the detection head 17 can be cleaned in the first stroke to avoid affecting the detection result during the return journey.

[0032] As a preferred technical solution, second guide rods 20 are vertically arranged in both of the two first sliding grooves 22. Third springs 21 are arranged between the tops of the two brackets 19 and the groove walls of the first sliding grooves 22. The two second guide rods 20 and the two third springs 21 are sleeved correspondingly. Specifically, when the two second sliders 24 are located in the corresponding second sliding grooves 23, the brackets 19 are kept at a certain height by the elastic force of the third springs 21. At the same time, the positions of the detection heads 17 and the connecting blocks 18 in the vertical direction do not change.

[0033] As a preferred technical solution, a screw rod 12 is rotatably connected between the two side plates 3. The screw rod 12 has two first threaded sections with opposite helix directions and a second threaded section. Threaded holes are respectively formed in the two first sliders 11. One of the first sliders 11 is threadedly connected to the first threaded section, and the other first slider 11 is threadedly connected to the second threaded section. A first guide rod 13 is horizontally arranged between the two side plates 3. The two first sliders 11 are both slidably sleeved on the first guide rod 13. Specifically, a motor 2 is arranged on the base 1. The output end of the motor 2 is coaxially and fixedly connected to one end of the screw rod 12. When the motor 2 is started, the screw rod 12 is driven to rotate. Due to the guiding and limiting of the first guide rod 13, the two first sliders 11 can only move in the horizontal direction. The two first sliders 11 move towards each other or away from each other, so as to realize the cleaning of the glass cover body 7 by the cleaning plate 8.

[0034] As a preferred technical solution, both of the two elastic units include second telescopic rods 9 and second springs 10 sleeved on the second telescopic rods 9. The tops of the two second telescopic rods 9 are fixedly connected to the bottoms of the two first sliders 11 correspondingly. The bottoms of the two second telescopic rods 9 are fixedly connected to the tops of the two cleaning plates 8 correspondingly. Specifically, through the cooperation between the two second telescopic rods 9 and the corresponding second springs 10, the cleaning plate 8 can clean the glass cover body 7 with different thicknesses.

[0035] As a preferred technical solution, a positioning groove 14 is arranged in each of the two clamping blocks 4. The two cleaning plates 8 are in clamping fit with the two positioning grooves 14 correspondingly. A fixing block 16 is arranged in each of the two grooves 29. The tops of the two fixing blocks 16 are triangular with the tips facing upward. The two fixing blocks 16 are in sliding abutting fit with the two cleaning plates 8. Specifically, the tops of the two fixing blocks 16 are triangular with the tips facing upward to prevent the glass cover body 7 from being too thin, the top horizontal height of the glass cover body 7 being lower than the bottom wall of the positioning groove 14, the two cleaning plates 8 not being able to move into the corresponding positioning grooves 14, and the two cleaning plates 8 blocking a part of the glass cover body 7, resulting in an incomplete detection image. It also prevents the glass cover body 7 from being too thick, the top horizontal height of the glass cover body 7 being higher than the bottom wall of the positioning groove 14, the two sides of the glass cover body 7 blocking the two cleaning plates 8, and the two cleaning plates 8 not being able to reset. And when the two cleaning plates 8 are in clamping connection with the corresponding positioning grooves 14, the detection head 17 can obtain a complete and clear detection image.

[0036] As a preferred technical solution, first telescopic rods 5 are provided on the sides of the two clamping blocks 4 away from each other. The ends of the two first telescopic rods 5 away from each other are fixedly connected to the two side plates 3 in one-to-one correspondence. First springs 6 are sleeved on the two first telescopic rods 5. Specifically, through the cooperation between the two first telescopic rods 5 and the corresponding first springs 6, the two clamping blocks 4 can adapt to glass cover plate bodies 7 of different specifications. After the detection head 17 finishes detection, the two cleaning plates 8 drive the two clamping blocks 4 to continue moving in the direction away from each other by abutting against the corresponding positioning grooves 14, releasing the clamping of the glass cover plate body 7, so that the glass cover plate body 7 can be turned over to detect the other side, or the next glass cover plate body 7 to be detected can be replaced. The motor 2 rotates in reverse to make the two cleaning plates 8 approach each other. At the same time, the two clamping blocks 4 clamp the next glass cover plate body 7 to be detected. After the two clamping blocks 4 clamp and fix the next glass cover plate body 7 to be detected, the two cleaning plates 8 continue to approach each other and reset to the initial position. At the same time, the cleaning sponges on the tops of the two first sliders 11 perform secondary cleaning on the detection head 17.

[0037] Working principle: The appearance defect detection device for the camera glass cover plate first clamps and fixes the glass cover plate body 7 by the two clamping blocks 4, and then starts the motor 2 to drive the screw rod 12 to rotate. The two first sliders 11 move in the direction away from each other. In the first stroke of the two first sliders 11 sliding in the direction away from each other, the two second sliders 24 are driven to slide in the corresponding second sliding grooves 23 through the corresponding connecting rods 26. At this time, the connecting block 18 does not move upward. The two first sliders 11 move away from each other and do not block the detection head 17 from scanning and detecting, avoiding hindering the detection head 17 from scanning and detecting. When the length of the glass cover plate body 7 is too long, the two second sliders 24 continue the second stroke. The two first connecting columns 25 move away from each other in the horizontal position, and drive the two connecting rods 26 to rotate. The two first connecting columns 25 move vertically upward along with the two connecting rods 26. At the same time, the two second sliders 24 push the two brackets 19 upward, realizing that the connecting block 18 drives the detection head 17 to move upward to expand the detection range of the detection head 17, improve the detection effect, make the detection image clearer, and at the same time the cleaning plate 8 can clean the surface of the glass cover plate body 7 to improve the detection effect. When the connecting block 18 drives the detection head 17 to move upward, through the meshing of the second bevel gear 38 and the rack 39, the first bevel gear 37 is driven to rotate, and through the transmission of the synchronous belt 35, the rotating rod 32 rotates. Through the sliding fit of the protrusion and the two spiral grooves 33, the end of the rotating plate 15 close to the protrusion swings reciprocally, and the detection head 17 is driven to swing reciprocally through the connecting plate 30, further expanding the scanning and detecting area of the detection head 17, improving the detection effect on the surface of the glass cover plate body 7, scanning and detecting the surface of the glass cover plate body 7, avoiding missed detection, and ensuring that the detection image is clear and complete.

[0038] Only some exemplary embodiments of the present invention have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A camera glass cover appearance defect detection device, comprising a base (1) and a machine table (28) arranged on the base (1), wherein the base (1) is connected to two clamping blocks (4) for clamping a glass cover body (7) in reverse horizontal sliding manner, the base (1) is symmetrically fixedly connected to two side plates (3), two first sliders (11) are connected to the two side plates (3) in reverse sliding manner, the bottoms of the two first sliders (11) are connected to a cleaning plate (8) through an elastic unit, one side of the machine table (28) is connected to a connecting block (18) in vertical sliding manner, the bottom of the connecting block (18) is rotatably connected to a detection head (17), the two first sliders (11) have a first stroke and a second stroke in sequence during the reverse sliding process, the two cleaning plates (8) are engaged with the two clamping blocks (4) in a one-to-one corresponding manner, and the characteristics are as follows: Also includes: A transmission assembly, which is driven by the second stroke of the two first sliding blocks (11) to move the connecting block (18) vertically upward; The linkage assembly is driven by the connecting block (18) to move vertically upward so as to make the detection head (17) swing back and forth.

2. The camera glass cover appearance defect detection device according to claim 1, characterized in that: The transmission assembly comprises two brackets (19), two second sliders (24), two first connecting columns (25), two connecting rods (26) and two second connecting columns (27); two first slide grooves (22) are symmetrically and vertically opened on one side of the machine platform (28); the two second sliders (24) are vertically slidably matched with the two first slide grooves (22) in a one-to-one correspondence; the two brackets (19) are vertically slidably connected with the two first slide grooves (22) in a one-to-one correspondence; the two brackets (19) are fixedly connected with one side of the connecting block (18). The two second connecting columns (27) are fixedly connected to the two first sliding blocks (11) in a one-to-one correspondence, one end of the two connecting rods (26) is rotatably sleeved to the two first connecting columns (25) in a one-to-one correspondence, the two first connecting columns (25) are fixedly connected to the two second sliding blocks (24) in a one-to-one correspondence, the other end of the two connecting rods (26) is rotatably sleeved to the two second connecting columns (27) in a one-to-one correspondence, and the top of the two second sliding blocks (24) is abutted and matched with the bottom of the two brackets (19) in a one-to-one correspondence.

3. The camera glass cover appearance defect detection device according to claim 1, characterized in that: The linkage assembly comprises a connecting plate (30), a rotating rod (32), a synchronous belt (35), a first bevel gear (37), a second bevel gear (38) meshing with the first bevel gear (37), a rack (39) meshing with the second bevel gear (38), and a rotating plate (15); the connecting plate (30) is rotatably connected in the connecting block (18); the bottom end of the connecting plate (30) is detachably connected to the detection head (17); one side of the connecting plate (30) is fixedly connected to the rotating plate (15); a second rotating shaft (34) and a third rotating shaft (36) are vertically rotatably connected in the connecting block (18); the rotating rod (3 2) and the first bevel gear (37) are respectively fixedly connected to the bottom ends of the second rotating shaft (34) and the third rotating shaft (36); the rotating rod (32) is provided with two spiral grooves (33) connected end to end; one side of the rotating plate (15) is provided with a protrusion, and the protrusion is slidably matched with the two spiral grooves (33) in sequence; the second rotating shaft (34) and the third rotating shaft (36) are connected by a synchronous belt (35); the second bevel gear (38) is rotatably connected in the connecting block (18); a guide groove (40) is vertically provided on one side of the machine table (28); and the rack (39) is vertically arranged in the guide groove (40).

4. The camera glass cover appearance defect detection device according to claim 2, characterized in that: Two second slide grooves (23) are horizontally symmetrically provided on one side of the machine platform (28); the two second slide grooves (23) are connected to the two first slide grooves (22) in a one-to-one correspondence; and the two second sliding blocks (24) are slidably matched to the two second slide grooves (23) in a one-to-one correspondence.

5. The camera glass cover appearance defect detection device according to claim 2, characterized in that: A second guide rod (20) is vertically arranged in each of the two first slide grooves (22), a third spring (21) is arranged between the top of each of the two brackets (19) and the groove wall of the first slide groove (22), and the two second guide rods (20) are sleeved with the two third springs (21) in a one-to-one correspondence.

6. The camera glass cover appearance defect detection device according to claim 1, characterized in that: A screw rod (12) is rotatably connected between the two side plates (3), and the screw rod (12) has two sections of a first thread section and a second thread section with opposite rotation directions. The two first sliders (11) are respectively provided with threaded holes, one of the first sliders (11) is threadedly connected to the first thread section, and the other first slider (11) is threadedly connected to the second thread section. A first guide rod (13) is horizontally arranged between the two side plates (3), and the two first sliders (11) are both slidably sleeved on the first guide rod (13).

7. The camera glass cover appearance defect detection device according to claim 1, characterized in that: The two elastic units each comprise a second telescopic rod (9) and a second spring (10) sleeved on the second telescopic rod (9); the top ends of the two second telescopic rods (9) are fixedly connected to the bottom ends of the two first sliding blocks (11) in a one-to-one correspondence; and the bottom ends of the two second telescopic rods (9) are fixedly connected to the top ends of the two cleaning plates (8) in a one-to-one correspondence.

8. The camera glass cover appearance defect detection device according to claim 1, characterized in that: A positioning groove (14) is provided in each of the two clamping blocks (4), and the two cleaning plates (8) are snap-fitted with the two positioning grooves (14) in a one-to-one correspondence. A fixing block (16) is provided in each of the two grooves (29), and the tops of the two fixing blocks (16) are in the form of a triangle with the tips pointing upwards. The two fixing blocks (16) are slidably butted against the two cleaning plates (8).

9. The camera glass cover appearance defect detection device according to claim 1, characterized in that: A first telescopic rod (5) is provided on the side away from the two clamping blocks (4), and the ends away from the two first telescopic rods (5) are fixedly connected to the two side plates (3) in a one-to-one correspondence, and a first spring (6) is sleeved on the two first telescopic rods (5).

10. The camera glass cover appearance defect detection device according to claim 6, characterized in that: The base (1) is provided with a motor (2), and the output end of the motor (2) is coaxially fixedly connected to one end of a screw rod (12).

Images