Optical detection device for mobile phone glass cover plate

Abstract

The invention belongs to the technical field of glass cover plate detection, and particularly relates to a mobile phone glass cover plate optical detection device which comprises a detection platform, and the upper end of the detection platform is slidably connected with a moving plate in the horizontal direction; the clamping mechanism is arranged above the moving plate and is used for clamping and fixing the glass cover plate to be detected; and the detection mechanism is used for comprehensively detecting the glass cover plate, the detection mechanism comprises two L-shaped rods fixedly connected to the upper end of the detection platform, a guide rail is fixedly connected between the two L-shaped rods, and a detection block is slidably connected in the guide rail. By arranging the detection mechanism, the detection block is driven to move towards the two sides in the guide rail through staggered movement of the two triangular plates in the detection process, so that the field of view detected by the light source generator and the optical receiver below the detection block is larger, and the glass cover plate with a larger size can be comprehensively covered and detected at one time.

Description

Technical Field

[0001] The invention belongs to the technical field of glass cover plate detection, and in particular relates to an optical detection device for a mobile phone glass cover plate. Background Art

[0002] Mobile phone glass cover is the outer protective glass of the smartphone screen, also often referred to as "screen protection glass". It is mainly located on the outermost layer of the mobile phone display screen and is responsible for protecting the internal display screen from external physical damage. During the production process of mobile phone glass cover, it is necessary to conduct optical inspection to identify whether there are defects, bubbles or other factors that affect the transparency of the surface of the mobile phone glass cover, improve the production quality of mobile phone glass cover, and ensure that each product can meet high standards and meet the needs of consumers.

[0003] However, the existing optical detection device, such as the optical detection device for glass cover disclosed in the patent document with Chinese announcement number CN212808110U, requires a light source generator and an optical receiver when detecting the glass cover of a mobile phone, wherein the light source generator is usually an infrared laser light source and the optical receiver is usually a photodiode, so there are the following technical problems:

[0004] During the inspection process, the light source generator and the optical receiver are usually fixed in one place and cannot be moved, resulting in the field of view of the optical inspection being often fixed and inconvenient. For a large glass cover plate, it may not be possible to fully cover the inspection at one time, and multiple scans or splicing are required, which increases the complexity of the operation and the error.

[0005] During the inspection process, dust and other impurities in the air can easily fall on the surface of the mobile phone's glass cover, causing local light scattering or obstruction. They will be mistakenly identified as defects, increasing the false alarm rate, or covering up actual defects, resulting in missed detection, which will have a significant impact on the optical inspection results and seriously interfere with the accuracy of the inspection. Summary of the invention

[0006] The purpose of the present invention is to address the problems raised in the above-mentioned background technology and to provide a mobile phone glass cover optical detection device that can expand the field of view of the light source generator and the optical receiver under the detection block, while accelerating the air flow speed at the detection position, so that dust in the air at the detection position is not easy to fall on the surface of the mobile phone glass cover.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An optical detection device for a mobile phone glass cover, comprising:

[0009] A detection platform, the upper end of which is slidably connected to a movable plate in a horizontal direction;

[0010] A clamping mechanism, disposed above the moving plate and used to clamp and fix the glass cover plate to be inspected;

[0011] The detection mechanism is used to perform a comprehensive detection on the glass cover plate, the detection mechanism includes two L-shaped rods fixedly connected to the upper end of the detection platform, a guide rail is fixedly connected between the two L-shaped rods, a detection block is slidably connected in the guide rail, a light source generator and an optical receiver are symmetrically arranged at the lower end of the detection block, a guide rod is fixedly connected to the upper end of the detection block, a guide wheel is fixedly connected to the part of the guide rod extending above the guide rail, and two triangular plates are slidably connected to the upper side of the guide rail in a vertical direction.

[0012] Preferably, one of the triangular plates is embedded in the other triangular plate, and the guide wheel is in rolling contact with any one of the triangular plates.

[0013] Preferably, the upper end of the detection platform is fixedly connected to a Z-shaped mounting plate, and a dust suction mechanism is provided on the Z-shaped mounting plate to prevent dust from falling onto the glass cover during the detection process. The dust suction mechanism includes an air cylinder slidably connected to the side wall of the Z-shaped mounting plate in a vertical direction, and the inner wall of the air cylinder is air-tightly slidably connected to a piston plate, and the tops of the two triangular plates are fixedly connected to connecting rods, and the two connecting rods are respectively fixedly connected to the piston plate and the air cylinder, and the upper end of the Z-shaped mounting plate is fixedly connected to a baffle, a first spring is provided between the air cylinder and the baffle, and a second spring is provided between the piston plate and the inner top wall of the air cylinder, and an exhaust pipe and an exhaust pipe are fixedly connected on a side wall of the air cylinder away from the Z-shaped mounting plate, and a one-way valve is provided inside the exhaust pipe and the exhaust pipe.

[0014] Preferably, the lower end of the air extraction pipe is fixedly connected to a dust suction pipe, and a side wall of the dust suction pipe close to the detection block is fixedly connected to a plurality of dust suction nozzles distributed in a linear array.

[0015] Preferably, a driving mechanism is provided on the Z-shaped mounting plate, which is used to drive the detection mechanism and the dust collection mechanism to work synchronously, and the driving mechanism includes a first transmission rod rotatably connected to the Z-shaped mounting plate, a first gear is fixedly connected to the first transmission rod, a first rack is fixedly connected between the triangular plate and the connecting rod, and the two first racks are respectively meshed with the two sides of the first gear, a driving rod is rotatably connected to the side wall of the Z-shaped mounting plate, a first motor for driving the driving rod is fixedly connected to a side wall of the Z-shaped mounting plate away from the driving rod, an arc-shaped tooth groove is fixedly connected to the driving rod, and a second gear meshing with the arc-shaped tooth groove is fixedly connected to the first transmission rod.

[0016] Preferably, the clamping mechanism includes two support plates fixedly connected to the upper end of the movable plate, a bidirectional screw cylinder is rotatably connected between the two support plates, a second motor for driving the bidirectional screw cylinder is fixedly connected to the side wall of one of the support plates, threads with opposite spiral directions are provided on the rods on both sides of the bidirectional screw cylinder, and slides are threadedly matched at the threads on both sides of the bidirectional screw cylinder, and the slides are slidably connected to the upper wall of the movable plate in a horizontal direction, a support platform is fixedly connected to the center position of the movable plate, a hydraulic telescopic rod is fixedly connected to the side of the slide close to the support platform, the telescopic end of the hydraulic telescopic rod is fixedly connected to the clamping plate, and a third spring is provided between the slide and the clamping plate.

[0017] Preferably, a reinforcement mechanism controlled by the clamping mechanism is further provided at the upper end of the movable plate, which is used to reinforce the glass cover plate before complete clamping. The reinforcement mechanism includes an adsorption groove opened at the upper end of the support platform, and the inner wall of the adsorption groove is air-tightly slidably connected with a lifting plate. A hydraulic cavity is provided at a position below the adsorption groove in the support platform, and a lifting block is air-tightly slidably connected in the hydraulic cavity. A fixing rod is fixedly connected between the lifting block and the lifting plate, and an infusion hose is fixedly connected between the inside of the hydraulic telescopic rod and the inside of the hydraulic cavity. The inside of the hydraulic telescopic rod, the space above the lifting block in the hydraulic cavity, and the infusion hose are filled with hydraulic oil.

[0018] Preferably, an automatic feeding mechanism is provided between the driving mechanism and the movable plate, for automatically moving the glass cover plate forward a preset feeding distance after the detection is completed, the automatic feeding mechanism comprises a second transmission rod which penetrates and is rotatably connected to the Z-shaped mounting plate, the second transmission rod is fixedly connected to a third gear which is meshed with the arc-shaped tooth groove, a rotating rod is rotatably connected to the side wall of the Z-shaped mounting plate through a mounting block, the rotating rod and the second transmission rod are fixedly connected at one end which is close to each other with bevel gears which are meshed with each other, the bottom end of the rotating rod is fixedly connected to a feeding gear, and the upper end of the movable plate is fixedly connected to a feeding rack which is meshed with the feeding gear.

[0019] Compared with the existing technology, the advantages of the mobile phone glass cover optical detection device are:

[0020] 1. The present invention sets a detection mechanism. During the detection process, the two triangles are alternately moved to contact the guide wheels, and the guide wheels are pushed to slide alternately to both sides, thereby driving the detection block to move to both sides in the guide rail, so that the field of view of the light source generator and the optical receiver under the detection block is larger, and a large glass cover plate can be fully covered and detected at one time, reducing the complexity of operation and errors.

[0021] 2. The present invention sets a dust suction mechanism, so that during the detection process, the air cylinder and the piston plate move synchronously with the two triangular plates, so that the piston plate performs reciprocating vertical displacement relative to the air cylinder, and the air at the detection position is pumped into the air cylinder through the exhaust pipe, and the air in the air cylinder is discharged through the exhaust pipe, thereby accelerating the air flow speed at the detection position, making it difficult for dust in the air at the detection position to fall on the surface of the mobile phone glass cover plate, avoiding local light scattering or shielding, and improving the accuracy of mobile phone glass cover plate detection.

[0022] 3. The present invention sets a clamping mechanism. Before detection, the glass cover of the mobile phone is placed on a support table, and then the second motor drives the bidirectional wire cylinder to rotate, so that the two slides are close to each other, and the two clamping plates are further driven to approach each other until the third spring is compressed to the point where it cannot be compressed. At this time, the two clamping plates are tightly against the two side walls of the glass cover of the mobile phone, preventing the glass cover of the mobile phone from shaking during the detection process, thereby improving the accuracy of optical detection.

[0023] 4. The present invention arranges a reinforcement mechanism, and the glass cover plate of the mobile phone is placed horizontally on the support platform. Before the two clamping plates approach each other and completely clamp the glass cover plate, the hydraulic telescopic rod contracts, thereby transporting the hydraulic oil inside the hydraulic telescopic rod to the hydraulic cavity through the infusion hose, so that the lifting block can drive the lifting plate to move downward, the space between the lifting plate and the glass cover plate in the adsorption groove is increased, and the air pressure is reduced, so that the glass cover plate is firmly adsorbed on the support platform, and the fixing effect of the glass cover plate is further improved.

[0024] 5. The present invention sets a driving mechanism and an automatic feeding mechanism. After each inspection is completed, the arc-shaped tooth groove meshes with the third gear, and the second transmission rod and the bevel gear drive the rotating rod to rotate, so that the feeding gear rotates a certain angle, so that the feeding rack can drive the movable plate to move forward a certain distance. After each inspection is completed, the glass cover plate is automatically moved forward a certain distance to achieve the feeding of the glass cover plate, thereby improving the degree of automation in the inspection process, not only facilitating comprehensive optical inspection of the glass cover plate, but also greatly improving the inspection efficiency and reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 is a partial cross-sectional view of the movable plate in the present invention;

[0027] Figure 3 It is a partial structural schematic diagram of the detection mechanism in the present invention;

[0028] Figure 4 It is a partial structural schematic diagram of the dust collection mechanism in the present invention;

[0029] Figure 5 It is a partial structural schematic diagram of the automatic feeding mechanism in the present invention.

[0030] In the figure: 1. detection platform; 11. moving plate; 12. Z-shaped mounting plate; 2. clamping mechanism; 21. support plate; 22. bidirectional wire cylinder; 23. second motor; 24. slide plate; 25. support platform; 26. hydraulic telescopic rod; 27. clamping plate; 28. third spring; 3. detection mechanism; 31. L-shaped rod; 32. guide rail; 33. detection block; 34. light source generator; 35. optical receiver; 36. guide rod; 37. guide wheel; 38. triangle plate; 4. dust suction mechanism; 41. air cylinder; 42. piston plate; 43. connecting rod; 44. baffle; 45. first spring ;46. Second spring;47. Exhaust duct;48. Exhaust duct;49. Dust suction duct;5. Driving mechanism;51. First transmission rod;52. First gear;53. First rack;54. Driving rod;55. First motor;56. Arc tooth groove;57. Second gear;6. Reinforcement mechanism;61. Adsorption groove;62. Lifting plate;63. Hydraulic chamber;64. Lifting block;65. Fixing rod;66. Infusion hose;7. Automatic feeding mechanism;71. Second transmission rod;72. Third gear;73. Rotating rod;74. Bevel gear;75. ​​Feeding gear;76. Feeding rack. DETAILED DESCRIPTION

[0031] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0032] Example: Refer to Figures 1 to 5 , a mobile phone glass cover optical detection device, comprising:

[0033] A detection platform 1, the upper end of which is slidably connected with a movable plate 11 in a horizontal direction;

[0034] The clamping mechanism 2 is arranged above the movable plate 11 and is used to clamp and fix the glass cover plate to be inspected;

[0035] The detection mechanism 3 is used to perform a comprehensive detection on the glass cover plate. The detection mechanism 3 includes two L-shaped rods 31 fixedly connected to the upper end of the detection platform 1. A guide rail 32 is fixedly connected between the two L-shaped rods 31. A detection block 33 is slidably connected in the guide rail 32. A light source generator 34 and an optical receiver 35 are symmetrically arranged at the lower end of the detection block 33. A guide rod 36 is fixedly connected to the upper end of the detection block 33. A guide wheel 37 is fixedly connected to the portion of the guide rod 36 extending above the guide rail 32. Two triangular plates 38 are slidably connected to the upper side of the guide rail 32 in the vertical direction.

[0036] Specifically, one of the triangular plates 38 is embedded in the other triangular plate 38 , and the guide wheel 37 rolls when it contacts any one of the triangular plates 38 .

[0037] Specifically, during the detection process, the light source generator 34 can irradiate the light source onto the glass cover plate of the mobile phone, and allow the reflected light to irradiate the optical receiver 35. The glass cover plate of the mobile phone is detected through the light signal received and converted by the optical receiver 35. Among them, the light source generator is an infrared laser light source, and the optical receiver is a photodiode. Through the symmetrical arrangement of the light source generator and the optical receiver, the light emitted by the infrared laser light source can be received by the photodiode after being refracted by the glass cover plate of the mobile phone. The photodiode converts the light signal into a voltage signal, thereby detecting surface defects, cracks, bubbles or unevenness of the glass cover plate of the mobile phone.

[0038] Specifically, a strip-shaped limiting groove is formed at the upper end of the guide rail 32 , and the guide rod 36 extends to the upper side of the guide rail 32 through the strip-shaped limiting groove, and the guide rod 36 is slidably connected to the inner wall of the strip-shaped limiting groove.

[0039] In view of the fact that the light source generator and the optical receiver in the prior art are usually fixed in one place and cannot be moved, resulting in that the field of view of their optical detection is often inconvenient to fix. For glass cover plates with larger sizes, it may not be possible to fully cover the detection at one time, and multiple scans or splicing are required, which increases the complexity of operation and errors. In the present invention, a detection mechanism 3 is set up. During the detection process, the two triangular plates 38 are staggered to make the two triangular plates 38 alternately contact with the guide wheels 37 and push the guide wheels 37 to slide alternately to both sides, thereby driving the detection block 33 to move to both sides in the guide rail 32, so that the field of view of the light source generator 34 and the optical receiver 35 under the detection block 33 is larger, and the larger glass cover plates can be fully covered and detected at one time, reducing the complexity of operation and errors.

[0040] A Z-shaped mounting plate 12 is fixedly connected to the upper end of the detection platform 1, and a dust suction mechanism 4 is provided on the Z-shaped mounting plate 12, which is used to prevent dust from falling onto the glass cover during the detection process. The dust suction mechanism 4 includes an air cylinder 41 slidably connected to the side wall of the Z-shaped mounting plate 12 in a vertical direction, and a piston plate 42 is airtightly slidably connected to the inner wall of the air cylinder 41. A connecting rod 43 is fixedly connected to the top of the two triangular plates 38, and the two connecting rods 43 are respectively fixedly connected to the piston plate 42 and the air cylinder 41. A baffle plate 44 is fixedly connected to the upper end of the Z-shaped mounting plate 12, a first spring 45 is provided between the air cylinder 41 and the baffle plate 44, a second spring 46 is provided between the piston plate 42 and the inner top wall of the air cylinder 41, and an exhaust pipe 47 and an exhaust pipe 48 are fixedly connected on a side wall of the air cylinder 41 away from the Z-shaped mounting plate 12, and a one-way valve is provided inside the exhaust pipe 47 and the exhaust pipe 48.

[0041] Specifically, the one-way valve is set so that when the piston plate 42 is displaced upward relative to the air cylinder 41, only the air at the detection position can be pumped into the air cylinder 41 through the exhaust pipe 47, and when the piston plate 42 is displaced downward relative to the air cylinder 41, only the air in the air cylinder 41 can be pumped out to the outside through the exhaust pipe 48, thereby accelerating the air flow speed at the detection position and slowing down the falling of dust in the air.

[0042] Specifically, the lower end of the air extraction pipe 47 is fixedly connected to a dust suction pipe 49 , and a side wall of the dust suction pipe 49 close to the detection block 33 is fixedly connected to a plurality of dust suction nozzles distributed in a linear array.

[0043] In view of the problem that dust and other impurities in the prior art easily fall on the surface of the glass cover of the mobile phone, causing local light scattering or shielding, they will be mistakenly identified as defects, increasing the false alarm rate, or covering up actual defects, resulting in missed detection, thereby significantly affecting the optical detection results and seriously interfering with the detection accuracy, the present invention sets a dust suction mechanism 4, during the detection process, the air cylinder 41 and the piston plate 42 follow the two triangular plates 38 to move synchronously, so that the piston plate 42 makes a reciprocating vertical displacement relative to the air cylinder 41, when the piston plate 42 moves upward relative to the air cylinder 41, the air at the detection position is pumped into the air cylinder 41 through the exhaust pipe 47, and when the piston plate 42 is between the first spring 45 and the second triangular plates 38, the air cylinder 41 and the piston plate 42 move synchronously with the two triangular plates 38, so that the piston plate 42 makes a reciprocating vertical displacement relative to the air cylinder 41, and when the piston plate 42 moves upward relative to the air cylinder 41, the air at the detection position is pumped into the air cylinder 41 through the exhaust pipe 47, and when the piston plate 42 is between the first spring 45 and the second triangular plates 38, the air cylinder 41 and the piston plate 42 move synchronously with the two triangular plates 38, and the air cylinder 41 moves ... piston plate 42 moves vertically relative to the gas cylinder 41. When the second spring 46 moves downward relative to the air storage cylinder 41 under the elastic force, the air in the air storage cylinder 41 is discharged through the exhaust pipe 48, so that the air at the detection position can be sucked during each detection process, and the air flow rate at the detection position is accelerated, so that the dust in the air at the detection position is not easy to fall on the surface of the mobile phone glass cover plate, avoiding local light scattering or blocking, and improving the accuracy of the mobile phone glass cover plate detection. At the same time, due to the staggered movement of the two triangular plates 38, the relative displacement between the air storage cylinder 41 and the piston plate 42 is large, which ensures the air suction efficiency, thereby ensuring the acceleration of the air flow rate at the detection position, and further reducing the possibility of dust in the air falling on the glass cover plate.

[0044] A driving mechanism 5 is provided on the Z-shaped mounting plate 12, which is used to drive the detection mechanism 3 and the dust collection mechanism 4 to work synchronously. The driving mechanism 5 includes a first transmission rod 51 rotatably connected to the Z-shaped mounting plate 12, and a first gear 52 is fixedly connected to the first transmission rod 51. A first rack 53 is fixedly connected between the triangular plate 38 and the connecting rod 43, and the two first racks 53 are respectively meshed with the two sides of the first gear 52. A driving rod 54 is rotatably connected to the side wall of the Z-shaped mounting plate 12, and a first motor 55 for driving the driving rod 54 is fixedly connected to a side wall of the Z-shaped mounting plate 12 away from the driving rod 54, an arc-shaped tooth groove 56 is fixedly connected to the driving rod 54, and a second gear 57 meshing with the arc-shaped tooth groove 56 is fixedly connected to the first transmission rod 51.

[0045] The clamping mechanism 2 includes two support plates 21 fixedly connected to the upper end of the movable plate 11, and a bidirectional screw cylinder 22 is rotatably connected between the two support plates 21. A second motor 23 for driving the bidirectional screw cylinder 22 is fixedly connected to the side wall of one of the support plates 21. Threads with opposite spiral directions are arranged on the rods on both sides of the bidirectional screw cylinder 22. Slide plates 24 are threadedly matched at the threads on both sides of the bidirectional screw cylinder 22. The slide plates 24 are slidably connected to the upper wall of the movable plate 11 in a horizontal direction. A support platform 25 is fixedly connected to the center position of the movable plate 11. A hydraulic telescopic rod 26 is fixedly connected to the side of the slide plate 24 close to the support platform 25. A clamping plate 27 is fixedly connected to the end of the hydraulic telescopic rod 26 close to the support platform 25. A third spring 28 is provided between the slide plate 24 and the clamping plate 27.

[0046] Specifically, since the slide plate 24 is connected to the upper wall of the movable plate 11 by sliding in the horizontal direction, the slide plate 24 will not be driven to rotate when the bidirectional screw cylinder 22 rotates, thereby avoiding motion interference.

[0047] In order to prevent the mobile phone glass cover from shaking during the detection process, the present invention sets a clamping mechanism 2. Before the detection, the mobile phone glass cover is placed on the support table 25, and then the second motor 23 drives the bidirectional wire cylinder 22 to rotate, so that the two slides 24 are close to each other, and further drive the two clamping plates 27 to approach each other until the third spring 28 is compressed to the point where it cannot be compressed. At this time, the two clamping plates 27 are tightly in contact with the two side walls of the mobile phone glass cover, preventing the mobile phone glass cover from shaking during the detection process, preventing the mobile phone glass cover from shaking during the detection, resulting in a difference between the voltage signal fed back by the photodiode and the surface of the mobile phone glass cover, thereby improving the accuracy of optical detection.

[0048] The upper end of the movable plate 11 is also provided with a reinforcement mechanism 6 controlled by the clamping mechanism 2, which is used to reinforce the glass cover before being fully clamped. The reinforcement mechanism 6 includes an adsorption groove 61 opened at the upper end of the support platform 25, and the inner wall of the adsorption groove 61 is air-tightly slidably connected with a lifting plate 62. A hydraulic chamber 63 is provided at a position below the adsorption groove 61 in the support platform 25, and a lifting block 64 is air-tightly slidably connected in the hydraulic chamber 63. A fixing rod 65 is fixedly connected between the lifting block 64 and the lifting plate 62. An infusion hose 66 is fixedly connected between the inside of the hydraulic telescopic rod 26 and the inside of the hydraulic chamber 63. The inside of the hydraulic telescopic rod 26, the space above the lifting block 64 in the hydraulic chamber 63, and the infusion hose 66 are filled with hydraulic oil.

[0049] In order to further improve the stability of the mobile phone glass cover during the detection process, the present invention sets a reinforcement mechanism 6. Before the two clamping plates 27 approach each other and completely clamp the glass cover, during the compression of the third spring 28, the two clamping plates 27 will first squeeze the hydraulic telescopic rod 26 to cause the hydraulic telescopic rod 26 to contract, thereby transporting the hydraulic oil inside the hydraulic telescopic rod 26 to the hydraulic chamber 63 through the infusion hose 66, so that the lifting block 64 in the hydraulic chamber 63 can be displaced downward, further driving the lifting plate 62 to move downward, thereby increasing the space between the lifting plate 62 and the glass cover in the adsorption groove 61, and reducing the air pressure. At this time, due to the air pressure difference between the adsorption groove 61 and the external atmospheric pressure, the glass cover can be firmly adsorbed on the support platform 25, further improving the fixing effect of the glass cover. At the same time, since the mobile phone glass cover is usually smoothly set, it is ensured that the mobile phone glass cover can be fixed on the support platform by negative pressure adsorption.

[0050] An automatic feeding mechanism 7 is provided between the driving mechanism 5 and the movable plate 11, which is used for automatically moving the glass cover forward by a preset feeding distance after the detection is completed. The automatic feeding mechanism 7 includes a second transmission rod 71 which is rotatably connected to the Z-shaped mounting plate 12, and a third gear 72 which meshes with the arc-shaped tooth groove 56 is fixedly connected to the second transmission rod 71. A rotating rod 73 is rotatably connected to the side wall of the Z-shaped mounting plate 12 through a mounting block. The rotating rod 73 and the second transmission rod 71 are fixedly connected at one end which is close to each other with a bevel gear 74 which meshes with each other. The bottom end of the rotating rod 73 is fixedly connected with a feeding gear 75, and the upper end of the movable plate 11 is fixedly connected with a feeding rack 76 which meshes with the feeding gear 75.

[0051] In order to improve the degree of automation of mobile phone glass cover detection, the present invention is provided with a driving mechanism 5 and an automatic feeding mechanism 7. During the detection process, when the first motor 55 drives the driving rod 54 to rotate, the arcuate tooth groove 56 is engaged with the second gear 57 and the third gear 72 in turn. When the arcuate tooth groove 56 is engaged with the second gear 57, the first transmission rod 51 is driven to rotate, and the two triangular plates 38 are further made to staggered through the first gear 52 and the first rack 53. When the arcuate tooth groove 56 is no longer engaged with the second gear 57, the two triangular plates 38 are reset by reverse staggered motion under the elastic force of the first spring 45 and the second spring 46. Specifically, when the two triangular plates 38 are in the initial state, the triangular plate 38 on the right is at the lowest end, thereby driving the detection block 38 through the guide wheel 37. 3 is located at the rightmost side of the guide rail 32, so that the detection block 33 can move from one side to the other side along the guide rail 32, and move back to the original position from the other side to complete a reciprocating detection of the glass cover plate. After the detection work is completed, the arc tooth groove 56 is meshed with the third gear 72, and the rotating rod 73 is driven to rotate through the second transmission rod 71 and the bevel gear 74, so that the feeding gear 75 rotates a certain angle, so that the feeding rack 76 can drive the moving plate 11 to move forward a certain distance, so that after each detection is completed, the moving plate 11 and the glass cover plate thereon are automatically moved forward a certain distance to realize the feeding of the glass cover plate, thereby improving the degree of automation in the detection process, not only facilitating the comprehensive optical detection of the glass cover plate, but also greatly improving the detection efficiency and reducing the workload of the staff.

[0052] The present invention can be explained by the following operation mode:

[0053] Before the test, the mobile phone glass cover is placed on the support platform 25, and then the second motor 23 drives the bidirectional wire cylinder 22 to rotate, so that the two slide plates 24 are close to each other, and further drive the two clamping plates 27 to be close to each other, until the third spring 28 is compressed to the point where it cannot be compressed. At this time, the two clamping plates 27 are tightly against the two side walls of the mobile phone glass cover. During the compression of the third spring 28, the two clamping plates 27 first contract the hydraulic telescopic rod 26, and deliver the hydraulic oil to the hydraulic chamber 63, so that the lifting block 64 can drive the lifting plate 62 to move downward, thereby increasing the space between the lifting plate 62 and the glass cover in the adsorption groove 61, reducing the air pressure, and firmly adsorbing the glass cover on the support platform 25 under the action of the air pressure difference;

[0054] During the detection process, when the first motor 55 drives the driving rod 54 to rotate, the arc-shaped tooth groove 56 meshes with the second gear 57 and the third gear 72 in turn. When the arc-shaped tooth groove 56 meshes with the second gear 57, it will drive the first transmission rod 51 to rotate, and further through the first gear 52 and the first rack 53, the two triangular plates 38 are staggered to move, so that the left triangular plate 38 is displaced downward, and the right triangular plate 38 is displaced upward. Through the resistance of the left triangular plate 38 to the guide wheel 37, the detection block 33 is displaced to the left along the guide rail 32. When the arc-shaped tooth groove 56 is no longer engaged with the second gear 57, the two triangular plates 38 will be reset by the reverse staggered movement under the elastic force of the first spring 45 and the second spring 46, and the right triangular plate is displaced downward. Through the resistance of the right triangular plate 38 to the guide wheel 37, the detection block 33 is displaced to the right along the guide rail 32, so that the field of view of the light source generator 34 and the optical receiver 35 below the detection block 33 is larger.

[0055] During the detection process, the air cylinder 41 and the piston plate 42 move synchronously with the two triangular plates 38, so that the piston plate 42 performs reciprocating vertical displacement relative to the air cylinder 41, and the air at the detection position is pumped into the air cylinder 41 through the air extraction pipe 47, and the air in the air cylinder 41 is discharged through the exhaust pipe 48, thereby accelerating the air flow speed at the detection position, so that the dust in the air at the detection position is not easy to fall on the surface of the mobile phone glass cover plate;

[0056] After the detection work is completed, the arc-shaped tooth groove 56 meshes with the third gear 72, and drives the rotating rod 73 to rotate through the second transmission rod 71 and the bevel gear 74, so that the feed gear 75 rotates a certain angle, so that the feed rack 76 can drive the movable plate 11 to move forward a certain distance, so that after each detection is completed, the movable plate 11 and the glass cover plate thereon are automatically moved forward a certain distance to realize the feeding of the glass cover plate.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical inspection device for a mobile phone glass cover, characterized in that: include: A detection platform (1), wherein the upper end of the detection platform (1) is slidably connected to a movable plate (11) in a horizontal direction; A clamping mechanism (2) is arranged above the movable plate (11) and is used to clamp and fix the glass cover plate to be inspected; A detection mechanism (3) is used to perform a comprehensive detection on a glass cover plate, the detection mechanism (3) comprising two L-shaped rods (31) fixedly connected to the upper end of a detection platform (1), a guide rail (32) fixedly connected between the two L-shaped rods (31), a detection block (33) slidably connected inside the guide rail (32), a light source generator (34) and an optical receiver (35) symmetrically arranged at the lower end of the detection block (33), a guide rod (36) fixedly connected to the upper end of the detection block (33), a guide wheel (37) fixedly connected to the portion of the guide rod (36) extending above the guide rail (32), and two triangular plates (38) slidably connected in a vertical direction above the guide rail (32).

2. The optical inspection device for mobile phone glass cover according to claim 1, characterized in that: One of the triangular plates (38) is embedded in the other triangular plate (38), and the guide wheel (37) is in rolling contact with any one of the triangular plates (38).

3. The optical inspection device for mobile phone glass cover according to claim 2, characterized in that: The upper end of the detection platform (1) is fixedly connected to a Z-shaped mounting plate (12), and a dust suction mechanism (4) is provided on the Z-shaped mounting plate (12) for preventing dust from falling onto the glass cover during the detection process. The dust suction mechanism (4) comprises an air storage cylinder (41) slidably connected to the side wall of the Z-shaped mounting plate (12) in a vertical direction, and the inner wall of the air storage cylinder (41) is airtightly slidably connected to a piston plate (42). The upper sides of the two triangular plates (38) are fixedly connected to connecting rods (43), and the two connecting rods (43) are respectively connected to the piston plate The Z-shaped mounting plate (12) is fixedly connected to an air storage cylinder (41); a baffle plate (44) is fixedly connected to the upper end of the Z-shaped mounting plate (12); a first spring (45) is provided between the air storage cylinder (41) and the baffle plate (44); a second spring (46) is provided between the piston plate (42) and the inner top wall of the air storage cylinder (41); an air extraction pipeline (47) and an air exhaust pipeline (48) are fixedly connected on a side wall of the air storage cylinder (41) away from the Z-shaped mounting plate (12); and one-way valves are provided inside the air extraction pipeline (47) and the air exhaust pipeline (48).

4. The optical inspection device for mobile phone glass cover according to claim 3, characterized in that: The lower end of the air extraction pipe (47) is fixedly connected to a dust suction pipe (49), and a side wall of the dust suction pipe (49) close to the detection block (33) is fixedly connected to a plurality of dust suction nozzles distributed in a linear array.

5. The optical inspection device for mobile phone glass cover according to claim 3, characterized in that: The Z-shaped mounting plate (12) is provided with a driving mechanism (5) for driving the detection mechanism (3) and the dust collection mechanism (4) to work synchronously, the driving mechanism (5) comprising a first transmission rod (51) rotatably connected to the Z-shaped mounting plate (12), the first transmission rod (51) being fixedly connected to a first gear (52), a first rack (53) being fixedly connected between the triangular plate (38) and the connecting rod (43), the two first racks (53) respectively meshing with two sides of the first gear (52), a driving rod (54) being rotatably connected to a side wall of the Z-shaped mounting plate (12), a first motor (55) for driving the driving rod (54) being fixedly connected to a side wall of the Z-shaped mounting plate (12) away from the driving rod (54), the driving rod (54) being fixedly connected to an arc-shaped tooth groove (56), and the first transmission rod (51) being fixedly connected to a second gear (57) meshing with the arc-shaped tooth groove (56).

6. The optical inspection device for mobile phone glass cover according to claim 1, characterized in that: The clamping mechanism (2) comprises two support plates (21) fixedly connected to the upper end of the movable plate (11), a bidirectional screw cylinder (22) being rotatably connected between the two support plates (21), a second motor (23) for driving the bidirectional screw cylinder (22) being fixedly connected to the side wall of one of the support plates (21), threads with opposite spiral directions being provided on the rod bodies on both sides of the bidirectional screw cylinder (22), slide plates (24) being threadedly matched at the threads on both sides of the bidirectional screw cylinder (22), the slide plates (24) being slidably connected to the upper wall of the movable plate (11) in a horizontal direction, a support platform (25) being fixedly connected at the center position of the movable plate (11), a hydraulic telescopic rod (26) being fixedly connected to the side of the slide plate (24) close to the support platform (25), a clamping plate (27) being fixedly connected to the telescopic end of the hydraulic telescopic rod (26), and a third spring (28) being provided between the slide plate (24) and the clamping plate (27).

7. The optical inspection device for mobile phone glass cover according to claim 6, characterized in that: The upper end of the movable plate (11) is also provided with a reinforcement mechanism (6) controlled by the clamping mechanism (2) for reinforcing the glass cover plate before full clamping. The reinforcement mechanism (6) comprises an adsorption groove (61) disposed at the upper end of the support platform (25). The inner wall of the adsorption groove (61) is airtightly slidably connected to a lifting plate (62). A hydraulic chamber (63) is provided in the support platform (25) at a position below the adsorption groove (61). A lifting block (64) is airtightly slidably connected in the hydraulic chamber (63). A fixed rod (65) is fixedly connected between the lifting block (64) and the lifting plate (62). An infusion hose (66) is fixedly connected between the interior of the hydraulic telescopic rod (26) and the interior of the hydraulic chamber (63). Hydraulic oil is filled in the interior of the hydraulic telescopic rod (26), the space above the lifting block (64) in the hydraulic chamber (63), and the space between the infusion hose (66).

8. The optical inspection device for mobile phone glass cover according to claim 5, characterized in that: An automatic feeding mechanism (7) is provided between the driving mechanism (5) and the movable plate (11), and is used for automatically moving the glass cover plate forward by a preset feeding distance after the detection is completed. The automatic feeding mechanism (7) comprises a second transmission rod (71) which is rotatably connected to the Z-shaped mounting plate (12), the second transmission rod (71) being fixedly connected to a third gear (72) which meshes with the arc-shaped tooth groove (56), a rotating rod (73) being rotatably connected to the side wall of the Z-shaped mounting plate (12) via a mounting block, the rotating rod (73) and the second transmission rod (71) being fixedly connected at one end thereof which are close to each other to a bevel gear (74) which meshes with each other, a feeding gear (75) being fixedly connected to the bottom end of the rotating rod (73), and a feeding rack (76) which meshes with the feeding gear (75) being fixedly connected to the upper end of the movable plate (11).

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