CN111122609A

CN111122609A - Defect detection equipment

Info

Publication number: CN111122609A
Application number: CN202010048272.4A
Authority: CN
Inventors: 曹一馨; 方海峰; 刘志强; 金焱立; 项旭帅
Original assignee: Ningbo Sunny Instruments Co Ltd
Current assignee: Ningbo Sunny Instruments Co Ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-05-08

Abstract

The present invention relates to a defect detecting apparatus comprising: the feeding module (1) is used for automatically feeding the lenses; the detection module (2) is used for detecting defects of the lens; the marking module (3) is used for identifying and distinguishing the lens after the defect detection; the receiving module (4) is used for receiving the lenses identified and distinguished by the marking module (3); and the carrying module (5) is matched with the feeding module (1), the detection module (2), the marking module (3) and the material receiving module (4) respectively and is used for carrying the lens. The defect detection equipment disclosed by the invention is high in detection efficiency and good in stability.

Description

Defect detection equipment

Technical Field

The invention belongs to the technical field of optics, and particularly relates to defect detection equipment.

Background

With the development of lens technology, the number of single-lens lenses in lenses such as mobile phone lenses and vehicle-mounted lenses is continuously increased, and on the premise that the capacity demand at the rear end is increased, the capacity demand of the lenses is improved in multiples, so that high requirements are provided for the detection process of lens products.

At present, the detection of the lens generally comprises manual detection and machine equipment detection, and the manual detection cannot meet the requirements on the detection effect and the detection efficiency. In the existing machine equipment, all the components are usually matched and cooperated with each other, so that if one component fails, the detection efficiency and the detection effect of the whole machine equipment are often affected.

Disclosure of Invention

The invention aims to provide a high-efficiency defect detection device.

In order to achieve the above object, the present invention provides a defect detecting apparatus, which comprises a feeding module for automatically feeding a lens;

the detection module is used for detecting defects of the lens;

the marking module is used for identifying and distinguishing the lens after the defect detection;

the receiving module is used for receiving the lenses distinguished by the marks of the marking module;

and the carrying module is matched with the feeding module, the detection module, the marking module and the receiving module respectively and is used for carrying the lens.

According to one aspect of the invention, the feeding module comprises a supporting plate provided with a through hole, a bin which is positioned on the supporting plate and is provided with a material tray, a lifting assembly positioned below the supporting plate and an extraction assembly positioned between the supporting plate and the lifting assembly;

the extraction assembly comprises a horizontal driving device and a supporting plate fixed on the horizontal driving device, a middle through hole is formed in the supporting plate, and the size of the middle through hole is smaller than that of the material tray.

According to one aspect of the invention, the lifting assembly comprises a vertical driving device and a Z-direction lifting platform fixedly connected with the vertical driving device, and the size of the Z-direction lifting platform is smaller than that of the middle through hole.

According to one aspect of the invention, the lower end of the bin is open, and a lower bearing plate is connected with the bin in a sliding and detachable mode;

still be equipped with horizontal support assembly in the backup pad, horizontal support assembly include horizontal drive spare and with horizontal drive spare fixed connection's charging tray support claw, the charging tray support claw can stretch into support in the feed bin the charging tray.

According to one aspect of the invention, the thickness of the tray supporting claw is larger than the gap between the adjacent trays.

According to one aspect of the invention, the front end of the tray supporting claw is provided with a conical chamfer.

According to one aspect of the invention, the surface of the tray supporting claw is coated with an anti-friction coating.

According to one aspect of the invention, limit stops are arranged on the supporting plate on two sides opposite to the middle through hole.

According to one aspect of the invention, a bin positioning seat is further arranged on the supporting plate.

According to one aspect of the present disclosure, the detection module includes a moving platform, a light source assembly positioned above the moving platform, and an imaging system positioned above the light source assembly;

the movable platform is adjustable at X, Y, and the light source assembly and the imaging system are adjustable in the Z direction.

According to one aspect of the invention, the marking module comprises:

the dotting pen seat is internally provided with a fixed height step and is used for installing a dotting pen;

the driving device provides the power for the dotting pen to work;

the driving device is connected with the dotting pen seat through the buffer piece.

According to one aspect of the invention, the receiving module comprises a second supporting plate provided with a second through hole, a receiving tower arranged on the second supporting plate and used for receiving a tray, a second lifting assembly positioned below the second supporting plate and a second extraction assembly positioned between the second supporting plate and the second lifting assembly;

the material receiving tower comprises a material tower upright post arranged on the second supporting plate and material bearing turning plates arranged on two opposite sides of the second through hole, and the distance between the two material bearing turning plates is smaller than the size of the material tray.

According to one aspect of the invention, the handling module comprises a cross beam, at least one gripper module arranged on the cross beam and movable along the X direction of the cross beam.

According to one aspect of the invention, three gripper modules are provided, and are respectively used for conveying the lenses at the feeding module to the detection module for detection, conveying the lenses detected by the detection module to the mark at the marking module and conveying the lenses distinguished by the mark at the marking module to the receiving module.

According to one aspect of the invention, the feeding module, the detection module, the marking module, the receiving module and the carrying module are all arranged to be double stations;

according to one scheme of the invention, the feeding module, the detection module, the marking module, the receiving module and the carrying module are all arranged to be double stations. The efficiency that lens defect detected can effectively be promoted to so set up.

According to one scheme of the invention, the lens defect detection equipment further comprises an equipment platform, and the two loading modules, the two detection modules, the two marking modules, the two receiving modules and the two carrying modules are symmetrically arranged on the equipment platform. The arrangement can further improve the detection efficiency of the lens defect detection equipment, and can realize simultaneous detection of four lenses in a narrow space.

According to one scheme of the invention, the detection equipment adopts a modularized arrangement, and the equipment is arranged into a feeding module, a detection module, a marking module, a material taking module and a carrying module which are mutually independent. The modules are independent from each other and run in parallel, serial waiting does not exist between the modules, the modules are independent from each other for the whole machine, and the working precision and the working efficiency of the other working module are not influenced due to the fact that a certain part breaks down. According to one scheme of the invention, the horizontal driving piece drives the tray holding claw to extend into the bin and is positioned between the tray at the lowest side and the lower supporting plate, so that the tray is separated from the lower supporting plate. Because the existence of charging tray support claw for when taking out the lower carrier plate, prevented that the lower carrier plate from taking place the pollution problem that the friction caused to the lens.

According to one aspect of the invention, the thickness of the tray supporting claw is set to be larger than the gap between the adjacent trays. So set up for when the unloading, can effectively strut two adjacent charging trays, avoid because the charging tray adhesion causes adverse effect to equipment stability.

According to one scheme of the invention, the lens to be detected is polished by adopting a mode of combining the combined light source and the lower light source, so that the detection of various defects of the lens can be adapted. The light source Z-direction driving piece can ensure the optimal polishing effect during the lens defect detection, and the Z-direction sliding table can be beneficial to an imaging system piece to obtain a higher-quality image.

According to one scheme of the invention, the buffer piece is internally provided with a spherical hinge and a spring structure, the spherical hinge is used for compensating the installation error between the driving device and the dotting pen seat, and the spring is used for playing a buffer role when the dotting pen contacts the lens product, so that the lens product is prevented from being damaged by overlarge driving force of the driving device.

Drawings

Fig. 1 is a schematic view showing an internal structure of a defect detecting apparatus according to the present invention;

FIG. 2 schematically shows a top view of a defect detection apparatus according to the present invention;

FIG. 3 schematically shows a block diagram of a loading module according to the invention;

FIG. 4 schematically shows a block diagram of an extraction assembly according to the present invention;

figure 5 shows schematically a block diagram of a silo according to the invention;

FIG. 6 schematically illustrates a block diagram of a lift assembly according to the present invention;

figure 7 schematically shows a side view of a support plate and a silo according to the invention;

FIG. 8 is a schematic representation of a structural view of a tray claw according to the present invention;

FIG. 9 is a schematic side view of the tray claw of FIG. 8;

FIG. 10 schematically shows a block diagram of a detection module according to the present invention;

FIG. 11 schematically illustrates a block diagram of a mobile platform in accordance with one embodiment of the present invention;

FIG. 12 schematically illustrates a light source assembly and imaging system view according to one embodiment of the present disclosure;

FIG. 13 schematically shows a block diagram of a marking module according to the present invention;

FIG. 14 schematically shows a partial enlarged view of FIG. 13;

fig. 15 schematically illustrates a construction of a take-off module according to the present invention;

FIG. 16 schematically shows a block diagram of a receiving tower according to the present invention;

FIG. 17 is a schematic representation of a construction of a carrier module according to the present invention;

fig. 18 schematically shows a construction of a gripper module according to the present invention.

The reference numerals in the drawings represent the following meanings:

1. and a feeding module. 2. And a detection module. 3. And a marking module. 4. And a material taking module. 5. And (5) carrying the module. 6. An equipment platform. 11. And a support plate. 12. A storage bin. 13. A lift assembly. 14. And (4) an extraction component. 141. And a horizontal driving device. 142. And (7) a supporting plate. 143. A middle through hole. 131. A vertical driving device. 132. And lifting the platform in the Z direction. 121. A lower deck. 111. A horizontal support assembly. 111a, horizontal drive. 111b and a tray supporting claw. 111 b', conical chamfer. 112. A bin positioning seat. 144. And a limit stop. 112. A bin positioning seat. 21. And (4) moving the platform. 22. A light source assembly. 23. An imaging system. 211. And a tray bearing platform. 212. And an X-direction driving piece. 213. A Y-direction driving member. 221. A combined light source. 222. A lower light source. 223. The light source is a Z-direction driving piece. 231. An imaging system component. 232. And a Z-direction sliding table. 31. A dotting pen seat. 32. A drive device. 33. A buffer. 41. A second support plate. 42. A material receiving tower. 43. A second lift assembly. 44. A second extraction assembly. 421. A material tower upright post. 422. A material-bearing turning plate. 51. A cross member. 52. And the hand grip module. 521. And a Z-axis driving device. 522. And clamping the power source. 523. And (4) a hand grip.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.

The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.

Referring to fig. 1 and 2, the defect detecting apparatus of the present invention includes a feeding module 1, a detecting module 2, a marking module 3, a material taking module 4, and a carrying module 5. The defect detection equipment can be used for detecting the defects of the lens, and can also be used for detecting the defects of a lens barrel, a space ring, a lens module and the like.

As shown in fig. 1 and 2, according to an embodiment of the present invention, a loading module 1, a detection module 2, a marking module 3, and a taking module 4 are sequentially arranged, and a carrying module 5 is disposed at one side of the loading module 1, the detection module 2, the marking module 3, and the taking module 4. Wherein material loading module 1 is used for lens automatic feeding, and detection module 2 is used for carrying out the defect detection to the lens of material loading module 1 material loading, and marking module 3 is used for carrying out the sign to the lens after the defect detection and distinguishes, receives material module 4 and is used for collecting the lens after marking module 3 signs and distinguishes. The carrying module 5 is used for carrying the lenses matched with the feeding module 1, the detection module 2 and the marking module 3.

As shown in fig. 1 and 2, according to an embodiment of the present invention, the feeding module 1, the detecting module 2, the marking module 3, the receiving module 4, and the carrying module 5 are all configured to have two stations, so that the efficiency of detecting defects of lenses can be effectively improved.

As shown in fig. 1 and 2, according to an embodiment of the present invention, the defect detecting apparatus further includes an apparatus platform 6, and two of the feeding module 1, the detecting module 2, the marking module 3, the receiving module 4 and the carrying module 5 are symmetrically disposed on the apparatus platform 6. The arrangement can further improve the detection efficiency of the lens defect detection equipment, and can realize the simultaneous detection of 4 lenses in a narrow space. The feeding module 1 and the receiving module 3 can process four trays for loading lenses at one time, the detection module can detect four lenses at one time, the marking module marks two lenses at one time, and the carrying module can carry 12 trays at one time.

The defect detection equipment adopts the modularized arrangement, and the equipment is arranged into a feeding module 1, a detection module 2, a marking module 3, a material taking module 4 and a carrying module 5 which are mutually independent. The modules are independent from each other and run in parallel, serial waiting does not exist between the modules, the modules are independent from each other for the whole machine, and the working precision and the working efficiency of the other working module are not influenced due to the fact that a certain part breaks down.

Referring to fig. 3-7, the loading module 1 of the present invention includes a support plate 11, a bin 12, a lift assembly 13, and an extraction assembly 14. According to one embodiment of the invention, the magazine 12 is hollow and rectangular overall and is intended to be loaded with a tray containing lenses. The lower end of the bin 12 is open and the lower end is provided with a lower bearing plate 121 which is detachably connected with the bin and slides. In operation, the trays loaded with the lenses are sequentially placed on the bin 12 through the lower end opening of the bin 12, then the lower bearing plate 12 is connected with the bin 12 from the lower end opening of the bin 12 to bear the trays in the bin, and then the bin loaded with the trays and the lower bearing plate 121 can be placed on the supporting plate 11.

According to one mode of the invention, four bin positioning seats 112 are arranged on the supporting plate 11, and the bins 12 are fixedly placed among the four bin positioning seats 112. The arrangement of the bin positioning seat 112 is beneficial to ensuring the position precision and stability of the bin 12 and ensuring the stable extraction of the material tray.

In the invention, the supporting plate 11 is provided with a through hole, and the size of the through hole is larger than that of a material tray in the storage bin. The lifting assembly 13 of the present invention comprises a vertical driving device 131 and a Z-direction lifting platform 132 fixedly connected to the vertical driving device 131, wherein the vertical driving device 131 can drive the Z-direction lifting platform 132 to move up and down in the vertical direction, so as to pass through the through hole of the supporting plate 11 to lift or lower the height of the tray in the storage bin 12.

The extraction assembly 14 of the present invention includes a horizontal driving device 141 and a supporting plate 142 fixedly connected to the horizontal driving device, the horizontal driving device 142 is located at one side of the storage bin 12 and the lifting assembly 13, and can drive the supporting plate 142 to move between the supporting plate 11 and the lifting assembly 13, and the supporting plate 142 is used for receiving the lens to be detected. In the invention, the supporting plate 142 is provided with a middle through hole 143, and the size of the middle through hole 143 is smaller than that of the tray and larger than that of the Z-direction lifting platform.

The supporting plate 11 of the invention is also provided with a horizontal supporting component 111 which comprises a horizontal driving component 111a fixedly arranged on the supporting plate 11 and a tray supporting claw 111b fixedly connected with the horizontal driving component 111a, and the horizontal driving component 111a and the tray supporting claw 111b are driven to extend into the storage bin 12.

The working process of the feeding module 1 of the invention is as follows:

after the magazine 12 loaded with the lenses is placed on the supporting plate 11, the horizontal driving member 111a drives the tray holding claw 111b to extend into the magazine and to be located between the tray at the lowest side and the lower supporting plate 121, so that the tray is separated from the lower supporting plate 121, and then the lower supporting plate 121 is pulled out from the lower end opening of the magazine 12. And because the existence of tray holding claw 11b for when taking out lower carrier plate 121, prevented that lower carrier plate 121 from taking place the pollution problem that the friction caused to the lens. Then the extracting assembly 14 is operated, and the horizontal driving means 141 drives the supporting plate 142 to move below the through hole of the supporting plate 11 so that the central through hole 143 of the supporting plate 142 is positioned below the through hole of the supporting plate 11. Then the lifting assembly 13 works, the vertical driving device 131 drives the Z-direction lifting platform 132 to ascend, contact the tray in the bin 12 and lift the tray upwards, so that the tray is separated from the tray holding claw 111b, and the horizontal driving piece 111a drives the tray holding claw 111b to return and exit out of the bin 12. Then the vertical driving device 131 of the lifting assembly 13 drives the Z-direction lifting platform 132 to descend, so that the trays descend until the height of the tray supporting claws 111b is located in the middle of the two lowest trays in the storage bin along the vertical direction, and the Z-direction lifting platform 132 stops descending. Then the horizontal driving part 111a drives the tray holding claw 111b to extend into the bin again, and at the moment, the tray holding claw 111b is positioned between the two trays at the lowest side to separate the two trays at the lowest side. Then, the vertical driving device 131 drives the Z-direction lifting platform 132 to descend, so that the lowest tray descends until the tray contacts the supporting plate 142, and the tray 143 is left on the supporting plate 142 because the size of the tray is larger than that of the middle through hole 143. Finally, the horizontal driving device 141 drives the supporting plate 142 to be drawn out between the supporting plate 11 and the lifting assembly 13, thereby completing the automatic lens feeding. Then, the lens on the supporting plate 142 is transported to the inspection module 2 by the transporting module 5 for defect inspection.

In the present invention, the thickness of the tray claw 111b is set to be larger than the gap between the adjacent trays. So set up for when the unloading, can effectively strut two adjacent charging trays, avoid because the charging tray adhesion causes adverse effect to equipment stability.

Referring to fig. 8 and 9, in order to reduce the impact of the insertion of the tray holding claw 111b, the front end of the tray holding claw 111b is provided with a conical chamfer 111 b' according to an embodiment of the present invention. In the present embodiment, the conical chamfer 111 b' is provided as a conical curved chamfer of rho 0.25. According to one embodiment of the invention, the surface of the tray claw 111b is also coated with an anti-friction coating, which in this embodiment is a teflon (PTFE) coating of about 60 μm thickness, thereby reducing the coefficient of friction between the surface of the tray claw 111b and the tray from about 0.26 to about 0.05. Thereby the risk that the tray is abraded by the supporting claw and dust is reduced to the minimum.

As shown in fig. 3 and 4, according to an embodiment of the present invention, the supporting plate 11 is further provided with limit stoppers 144, and the limit stoppers 144 are disposed at opposite sides of the central through hole 143. Of course, according to the concept of the present invention, the limit stoppers 144 may be provided all around the middle through-hole 143. The limit stopper 144 is arranged to ensure that the tray is safely and stably retained on the supporting plate 142.

Referring to fig. 3-7, the loading module 1 of the present invention is provided with a double-station module, which can be seen from the figure, in two bins 12, two pallets 142 and two Z-direction lifting platforms 132, according to one embodiment of the present invention. In this embodiment, two supporting plates 142 are installed on the same horizontal driving device 141, and two Z-direction lifting platforms 132 are installed on the same vertical driving device 131, so that the working efficiency is improved, and the miniaturization design of the detection device is facilitated.

As shown in fig. 10, according to one embodiment of the present invention, the detection module 2 of the present invention includes a moving platform 21, a light source assembly 22, and an imaging system 23. In the present embodiment, the light source assembly 22 is located above the moving platform 21, and the imaging system 23 is located above the light source assembly 22. The movable platform 21 is adjustable at X, Y, and the light source assembly 22 and the imaging system 23 are adjustable in the Z-direction.

As shown in fig. 11, according to an embodiment of the present invention, the moving platform 21 includes a tray supporting platform 211, an X-directional driving member 212 and a Y-directional driving member connected to the tray supporting platform 211. In this embodiment, the X-direction driving element 212 and the Y-direction driving element 213 are disposed on one side of the tray supporting platform 211 in an offset manner, which is beneficial to the reasonable layout of each component and avoids interference of each component. According to an embodiment of the present invention, the X-directional driving element 212 and the Y-directional driving element 213 may be servo motors and lead screw guides.

As shown in fig. 12, according to one embodiment of the present invention, the light source assembly 22 of the present invention includes a combined light source 221, a lower light source 222 located at a lower side of the combined light source 221, and a light source Z-directional driving member 223 for driving the combined light source 221 and the lower light source 222 in a Z direction. The imaging system 23 of the present invention includes a Z-direction slide table 232 and an imaging system component 231 fixed on the Z-direction slide table 232, and the imaging system component 231 can move up and down along the Z-direction.

The detection module of the invention adopts a mode of combining the combined light source 221 and the lower light source 222 to polish the lens to be detected, and can adapt to the detection of various defects of the lens. The light source Z-direction driving component 223 can ensure the best polishing effect during the lens defect detection, and the Z-direction sliding platform 232 can be beneficial to the imaging system component 231 to obtain a higher-quality image.

Referring to fig. 13 and 14, according to one embodiment of the present invention, the marking module 3 of the present invention includes a stylus holder 31, a driving device 32, and a buffer 33. In the present embodiment, a fixed height step is provided in the stylus holder 31 for mounting a stylus. The height-fixed step can ensure that the nibs and the like of the dotting pen which are replaced at each time are fixed at the same height, and debugging is not needed after replacement. In this embodiment, the driving device 32 is an air cylinder, the driving device 32 is used for providing the dotting pen working power, and the driving device 32 is connected with the dotting pen holder 31 through a buffer 33 and drives the dotting pen holder 31 to move up and down to complete the dotting marking work.

According to an embodiment of the present invention, the buffer 33 is provided with a ball hinge and a spring structure, the ball hinge is used for compensating for an installation error between the driving device 32 and the dotting pen holder 31, and the spring is used for playing a buffering role when the dotting pen contacts the lens product, so as to prevent the lens product from being damaged due to an excessive driving force of the driving device 32.

As shown in fig. 15 and 16, according to one embodiment of the present invention, the reclaiming module 4 of the present invention includes a second support plate 41 provided with a second through hole, a material receiving tower 42 provided on the second support plate 41 for receiving the material tray, a second lifting assembly 43 located below the second support plate 41, and a second extraction assembly 44 located between the second support plate 41 and the second lifting assembly 43. In this embodiment, the second supporting plate 41 is the same as the supporting plate 11 in the feeding module 1, the second lifting assembly 43 is the same as the lifting assembly 13, and the second extracting assembly 44 is the same as the extracting assembly 14, which will not be described again.

In this embodiment, the material receiving tower 42 includes a material tower column 421 disposed on the second support plate 41 and material receiving turning plates 422 disposed on opposite sides of the second through hole. In this embodiment, the second support plate 41 is provided with four material tower columns 421, and when the material tray is collected, the material tray is lifted to the four material tray columns 421 through the second through holes in the second support plate 41.

Specifically, in the present invention, the distance between the two material-holding flaps 422 is smaller than the size of the tray. So set up for the second lifting module 43 lifts the lens product to the material receiving tower 41 department, and the charging tray will hold the material and turn over the board 422 and open, is located and holds the material and turn over the board 422 top, then, holds the material and turn over the board 422 and return to the normal position because of the dead weight effect, accomplishes a material receiving operation.

As shown in fig. 17, the handling module 5 of the present invention includes a cross member 51, and at least one gripper module 52 provided on the cross member 51 to be movable in the X direction of the cross member 51. The gripper module 53 is used to carry lens products.

In this embodiment, three gripper modules 52 are provided, and respectively send the lenses at the feeding module 1 to the detection module 2 for detection, send the lenses detected by the detection module 2 to the mark at the marking module 3, and send the lenses distinguished by the mark at the marking module 3 to the material receiving module 4. So set up and make material loading module 1, detection module 2, mark module 3 and receive material module 4 synchronous working, mutual noninterference is favorable to promoting work efficiency.

As shown in fig. 17, according to an embodiment of the present invention, the gripper module 52 of the present invention includes a Z-axis driving device 521, a gripping power source 522, and a gripper 523. In this embodiment, two grippers are oppositely disposed, the gripping power source 522 is provided with a cylinder for controlling gripping and releasing of the two grippers, and the Z-axis driving unit 521 is used to adjust the Z-direction position of the grippers. Likewise, in an embodiment, gripper module 52 is also configured as a dual station, capable of gripping two products at a time.

The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A defect detection apparatus, comprising:

the feeding module (1) is used for automatically feeding the lenses;

the detection module (2) is used for detecting defects of the lens;

the marking module (3) is used for identifying and distinguishing the lens after the defect detection;

the receiving module (4) is used for receiving the lenses identified and distinguished by the marking module (3);

and the carrying module (5) is matched with the feeding module (1), the detection module (2), the marking module (3) and the material receiving module (4) respectively and is used for carrying the lens.

2. The defect detecting equipment according to claim 1, characterized in that the loading module (1) comprises a supporting plate (11) provided with a through hole, a bin (12) provided with a tray and positioned on the supporting plate (11), a lifting assembly (13) positioned below the supporting plate (11), and an extraction assembly (14) positioned between the supporting plate (11) and the lifting assembly (13);

the extraction assembly (14) comprises a horizontal driving device (141) and a supporting plate (142) fixed on the horizontal driving device (141), a middle through hole (143) is formed in the supporting plate (142), and the size of the middle through hole (143) is smaller than that of the tray.

3. The defect detection apparatus of claim 2, wherein the lifting assembly (13) comprises a vertical driving device (131) and a Z-direction lifting platform (132) fixedly connected with the vertical driving device (131), and the size of the Z-direction lifting platform (132) is smaller than that of the middle through hole (143).

4. The defect detecting apparatus according to claim 3, wherein the bin (12) is open at a lower end, and a lower carrier plate (121) is slidably and detachably connected;

still be equipped with horizontal supporting component (111) on backup pad (11), horizontal supporting component (111) include horizontal drive piece (111a) and with horizontal drive piece (111a) fixed connection's charging tray support claw (111b), charging tray support claw (111b) can stretch into support in feed bin (12) the charging tray.

5. The defect detecting apparatus according to claim 4, wherein the thickness of the tray holding claw (111b) is larger than the gap between the adjacent trays.

6. The defect detecting equipment of claim 5, wherein the front end of the tray supporting claw (111b) is provided with a conical chamfer.

7. The defect detecting apparatus according to claim 6, wherein the tray claw (111b) is coated with an anti-friction coating on the surface.

8. The defect detecting apparatus according to claim 2 or 7, wherein limit stoppers (144) are provided on the supporting plate (142) at both sides opposite to the central through hole (143).

9. The defect detecting apparatus according to claim 2 or 7, wherein a bin positioning seat (112) is further provided on the supporting plate (11).

10. The apparatus according to claim 1, wherein the detection module (2) comprises a moving platform (21), a light source assembly (22) located above the moving platform (21), and an imaging system (23) located above the light source assembly (22);

the moving platform (21) is adjustable at X, Y, and the light source assembly (22) and the imaging system (23) are adjustable in the Z direction.

11. The defect detection apparatus according to claim 1, wherein the marking module (3) comprises:

the dotting pen seat (31) is internally provided with a fixed height step and is used for installing a dotting pen;

a drive device (32) providing the dotting pen with power;

a buffer (33), wherein the driving device (32) is connected with the dotting pen seat (31) through the buffer (33).

12. The defect detection equipment of claim 1, wherein the material collecting module (4) comprises a second support plate (41) provided with a second through hole, a material collecting tower (42) arranged on the second support plate (41) and used for collecting material trays, a second lifting assembly (43) positioned below the second support plate (41), and a second extracting assembly (44) positioned between the second support plate (41) and the second lifting assembly (43);

the material receiving tower (42) comprises a material tower upright post (421) arranged on the second supporting plate (41) and material bearing turning plates (422) arranged on two opposite sides of the second through hole, and the distance between the two material bearing turning plates (422) is smaller than the size of the material tray.

13. The apparatus according to claim 1, wherein the handling module (5) comprises a cross-member (51), at least one gripper module (52) arranged on the cross-member (51) and movable in the X-direction of the cross-member (51).

14. The defect detecting equipment according to claim 11, wherein the number of the gripper modules (52) is three, and the gripper modules are respectively used for sending the lenses at the material loading module (1) to the detecting module (2) for detection, sending the lenses detected by the detecting module (2) to the marking module (3) for identification, and sending the lenses distinguished by the marking module (3) to the material receiving module (4).

15. The apparatus according to claim 1, characterized in that the loading module (1), the detection module (2), the marking module (3), the receiving module (4) and the handling module (5) are arranged in a double station.