CN217237789U

CN217237789U - AOI detection equipment and transmission device thereof

Info

Publication number: CN217237789U
Application number: CN202221011050.6U
Authority: CN
Inventors: 李谭军; 夏延源; 田力; 张虎
Original assignee: Lens Technology Changsha Co Ltd; Lens Intelligent Robot Changsha Co Ltd
Current assignee: Lens Technology Changsha Co Ltd; Lens Intelligent Robot Changsha Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-19
Anticipated expiration: 2032-04-28

Abstract

The application discloses AOI check out test set and transmission device thereof includes: a support; the conveying shafts are rotatably connected to the support, the conveying shafts are arranged horizontally and in parallel, the top ends of the circumferential surfaces of the conveying shafts are positioned in the same conveying plane, and a gap is formed between any two adjacent conveying shafts; and the driving mechanism is connected with the conveying shafts and is used for driving the conveying shafts to rotate towards the same direction. Because the products are directly conveyed by the side-by-side conveying shafts, the distance between two adjacent conveying shafts can be set to be small, so that the products with small size can be conveyed; simultaneously, the clearance has guaranteed between two adjacent conveying shafts that AOI detects light can carry out AOI to the product through shining on the product, carries out the bottom sprag through conveying shaft to the product in addition, can improve the stationarity that the product was carried.

Description

AOI detection equipment and transmission device thereof

Technical Field

The application relates to the technical field of optical detection equipment, in particular to a transmission device of AOI detection equipment, and further relates to AOI detection equipment comprising the transmission device.

Background

AOI (Automated Optical Inspection, chinese) is a device used to inspect the appearance quality of products.

The conventional AOI equipment mainly conveys products through an object carrying platform, has extremely high requirement on the moving precision of the object carrying platform, and increases the risk of falling and colliding of the products once the precision does not meet the requirement; and the stage may interfere or block the light source, resulting in poor AOI imaging.

In addition, the AOI transmitted by the rail type generally uses a belt for transmission, and the belt needs to contact with a product in a whole surface, so that a part of the product is shielded, the AOI cannot be effectively used for completely shooting the product, and the detection quality is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transmission device of AOI check out test set can avoid the sheltering from to detecting light to improve the detection quality of product, can also compromise the stationarity that the product was carried in addition, another purpose provides an AOI check out test set including above-mentioned transmission device.

In order to achieve the above purpose, the present application provides the following technical solutions:

a transmission device of an AOI inspection apparatus, comprising: a support; the conveying shafts are rotatably connected to the support, the conveying shafts are arranged horizontally and in parallel, the tops of the circumferential surfaces of the conveying shafts are used for being in contact with the lower surface of a product, and a gap is formed between any two adjacent conveying shafts; and the driving mechanism is connected with the conveying shafts and is used for driving the conveying shafts to rotate towards the same direction.

In some embodiments, the driving mechanism includes a synchronous belt, a driving pulley and a plurality of synchronous wheels, one end of each transmission shaft is provided with a synchronous wheel, and the synchronous belt is sleeved on the synchronous wheel and the driving pulley.

In some embodiments, the driving mechanism further includes a plurality of idle wheels, the idle wheels are disposed between two adjacent synchronous wheels or between the driving pulley and the synchronous wheel adjacent to the driving pulley, and the idle wheels are wound with the synchronous belt.

In some embodiments, the driving mechanism further comprises a tension wheel around which a timing belt is wound.

In some embodiments, the total number of idler and idler pulleys is the same as the number of synchronizing pulleys and corresponds to one.

In some embodiments, the driving mechanism further comprises a driven pulley, and the synchronous belt is wound around all the synchronous wheels and the idle wheels and then wound back to the driving pulley through the driven pulley.

In some embodiments, the axes of the idler wheels are in the same horizontal plane and are not coplanar with the horizontal plane in which the synchronizing wheels are located.

In some embodiments, the circumferential side of each transport shaft is provided with a fully black matte layer.

In some embodiments, the support comprises two parallel vertical plates, and two ends of the transmission shaft are respectively connected to the two vertical plates in a rotating manner.

An AOI inspection apparatus comprising a transmission device as claimed in any preceding claim.

Compared with the prior art, the technical scheme has the following advantages:

the application provides an AOI check out test set and transmission device thereof includes: a support; the conveying shafts are rotatably connected to the support, are positioned on the same horizontal plane and are parallel to each other, the tops of the circumferential surfaces of the conveying shafts are used for contacting with the lower surface of a product, and a gap is formed between any two adjacent conveying shafts; and the driving mechanism is connected with the conveying shafts and is used for driving the conveying shafts to rotate towards the same direction. Because the products are directly conveyed by the side-by-side conveying shafts, the distance between two adjacent conveying shafts can be set to be small, so that the products with small size can be conveyed; simultaneously, the clearance has guaranteed between two adjacent conveying shafts that AOI detects light can carry out AOI to the product through shining on the product, carries out the bottom sprag through conveying shaft to the product in addition, can improve the stationarity that the product was carried.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a transmission device according to an embodiment of the present application;

fig. 2 is a schematic front view of a transmission device according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating an operating principle of a transmission device according to an embodiment of the present application.

The reference numbers are as follows:

the camera comprises a support 1, a vertical plate 1-1, an avoidance groove 1-1, a connecting piece 1-2, a waist-shaped hole 1-2-1, a transmission shaft 2, a driving belt wheel 3, a rotating shaft 4, a bearing seat 4-1, a synchronizing wheel 5, an idler wheel 6, a tension wheel 6-1, a strip-shaped groove 6-2, a driven belt wheel 7, a synchronous belt 8, a product 9, an upper light source 10, an upper camera 11, a lower light source 12 and a lower camera 13.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a transmission device according to an embodiment of the present application; fig. 2 is a schematic front view of a transmission device according to an embodiment of the present application; fig. 3 is a schematic diagram illustrating an operating principle of a transmission device according to an embodiment of the present application.

The transmission device of AOI check out test set that this application embodiment provided includes: the device comprises a support 1, a plurality of conveying shafts 2 and a driving mechanism, wherein the number of the conveying shafts 2 is multiple, each conveying shaft 2 is rotatably connected to the support 1, each conveying shaft 2 is horizontally arranged and parallel to each other, the top ends of the circumferential surfaces of the conveying shafts 2 are positioned in the same conveying plane, the lower surface of a product 9 is conveyed in the conveying plane, a gap is formed between any two adjacent conveying shafts 2, and the gap is used for AOI detection light rays to pass through; the driving mechanism is connected with the conveying shafts 2 and is used for driving each conveying shaft 2 to rotate towards the same direction so as to convey the products 9 through friction force.

Since the products 9 are directly conveyed by the side-by-side conveying shafts 2, the distance between two adjacent conveying shafts 2 can be set small, so that products 9 of a small size can be conveyed; meanwhile, the gap between every two adjacent conveying shafts 2 ensures that AOI detection light can irradiate on the product 9 to carry out AOI detection on the product 9, so that the detection quality is improved; in addition, the conveying shaft 2 supports the bottom of the product 9, so that the conveying stability of the product 9 can be improved. By controlling the gap between the transport shafts 2, the transport requirements for different sized products 9 can be met, for example when the products 9 are smaller, the spacing between adjacent transport shafts 2 can be reduced.

It should be noted that, because a plurality of transmission shafts 2 are arranged at intervals, a light source can be respectively arranged above and below the plane where the transmission shafts 2 are located, for example, as shown in fig. 2, an upper light source 10 and an upper camera 11 are arranged above the whole machine, and a lower light source 12 and a lower camera 13 are arranged below the whole machine, so that the upper and lower surfaces of the product 9 can be detected, the solid line between the upper light source 10 and the lower camera 13 is penetrating light, the solid line between the lower light source 12 and the upper camera 11 is penetrating light, and the dotted line is reflecting light. The upper surface and the lower surface of the product 9 are simultaneously detected, so that the detection efficiency of the product 9 can be effectively improved.

In some embodiments, the driving mechanism includes a synchronous belt 8, a driving pulley 3 and a plurality of synchronous wheels 5, one end of each conveying shaft 2 is provided with the synchronous wheel 5, the synchronous belt 8 is sleeved on the driving pulley 3 and the synchronous wheels 5, the driving pulley 3 can drive each synchronous wheel 5 to rotate through the synchronous belt 8, and then each conveying shaft 2 is driven to rotate, and the synchronous constant-speed rotation of each conveying shaft 2 can be ensured through the synchronous belt 8, so as to ensure the stability of conveying of the product 9. Wherein the driving pulley 3 can be driven by a motor or other power means.

In some embodiments, the driving mechanism further includes a plurality of idle pulleys 6, the idle pulleys 6 are disposed between two adjacent synchronizing wheels 5 or between the driving pulley 3 and the synchronizing wheel 5 adjacent to the driving pulley 3, and a timing belt 8 is wound around the idle pulleys 6, as shown in fig. 3, where the direction of the arrow shown on the timing belt 8 is the direction in which the idle pulleys 6 and the synchronizing wheels 5 are wound. The idler 6 is used for changing the steering direction of the synchronous wheel 5 and improving the wrap angle of the synchronous belt 8 and the synchronous wheel 5, and the rotating stability of the synchronous wheel 5 can be improved through a larger wrap angle. In order to reduce the pitch of the respective conveying shafts 2 to the maximum, the axes of the respective idle wheels 6 are located in the same horizontal plane and are not coplanar with the horizontal plane on which the respective synchronizing wheels 5 are located, and when the pitch of the respective synchronizing wheels 5 is reduced, interference of the idle wheels 6 can be avoided, and as shown in fig. 3, the respective idle wheels 6 are located below the synchronizing wheels 5, and in addition, the respective idle wheels 6 may be provided above the synchronizing wheels 5.

In conventional embodiments, some configurations are such that conveying the product via a conveyor belt will block light, affecting AOI detection; some structures are conveyed through the rollers, and are not suitable for detecting glass, especially 2.5D or 3D glass on a display screen of a mobile phone or a tablet personal computer, the side surface of the glass is an arc surface, and the conveying device can convey small-size glass products without damaging the glass, convey stably and ensure that light passes through, so that the accuracy of AOI detection is improved.

In order to avoid the deviation of the synchronous belt 8, the driving mechanism further comprises a tension pulley 6-1, the synchronous belt 8 is wound on the tension pulley 6-1, and the tension pulley 6-1 can tension the synchronous belt 8 so as to enable the synchronous belt 8 to be in close contact with the synchronous wheel 5. In order to reduce the use of parts, one of the idler pulleys 6 may be selected as the idler pulley 6-1, the idler pulley 6 is slidably connected to the frame 1 up and down, for example, as shown in fig. 2, the idler pulley 6 on the side is slidably connected to the bracket 1 up and down through the strip-shaped groove 6-2, when the timing belt 5 is loosened, the idler pulley 6 can be moved down, and then the idler pulley 6 is locked in the strip-shaped groove 6-2, so as to prevent the idler pulley 6 from freely sliding in the strip-shaped groove 6-2. The total number of the idle wheels 6 and the tensioning wheels 6-1 is the same as that of the synchronous wheels 5, and the idle wheels 6 correspond to the synchronous wheels 5 one by one, namely, a plurality of idle wheels 6 can be selected to be used as tensioning wheels 6-1, and the tensioning effect of the synchronous belt 8 can be improved through the plurality of tensioning wheels 6-1.

In some embodiments, the driving mechanism further includes a driven pulley 7, the synchronous belt 8 is wound around all the synchronous wheels 5 and the idle wheels 6 and then wound back to the driving pulley 3 through the driven pulley 7, the direction of the synchronous belt 8 can be changed through the driven pulley 7, as shown in fig. 1 and fig. 2, two driven pulleys 7 are respectively arranged on two sides of the bracket 1, the driven pulleys 7 are located below the idle wheels 6 in the height position, and through the arrangement, the synchronous belt 8 is not interfered by the idle wheels 6 when wound back to the driving pulley 3.

In some embodiments, the circumferential side of each of the transmission shafts 2 is provided with a full black matte layer, for example, a black coated shaft, wherein the black coated shaft can be molded by combining polyurethane resin with carbon, the light absorption rate is not less than 90%, no flare is generated, and the influence of reflection and refraction of detection light is avoided.

In some embodiments, the support 1 comprises two parallel vertical plates 1-1, and the two ends of the transmission shaft 2 are respectively rotatably connected to the two vertical plates 1-1, for example, the transmission shaft 2 can be connected to the vertical plates 1-1 through bearings. In order to improve the stability of the bracket 1, the inner sides of the two ends of the two vertical plates 1-1 are fixed by the connecting pieces 1-2, as shown in fig. 1, the connecting pieces 1-2 are preferably in a groove-shaped structure, the two ends of the connecting pieces 1-2 are respectively connected with the two vertical plates 1-1, and the connecting pieces 1-2 can be provided with waist-shaped holes 1-2-1 so as to adjust the position of the transmission device. The side of the bracket 1 is provided with a rotating shaft 4, the rotating shaft 4 is rotatably connected through a bearing, the rotating shaft 4 can be supported through an independent bearing seat 4-1 and also can be supported by a vertical plate 1-1, as shown in figure 1, the same end of two vertical plates 1-1 is provided with an avoiding groove 1-1-1, the opening of the avoiding groove 1-1-1 faces outwards, the rotating shaft 4 can be assembled with the bearing seat 4-1 into a component, when the rotating shaft 4 is assembled with the vertical plate 1-1, the rotating shaft 4 can be just opposite to the opening of the avoiding groove 1-1-1, then the rotating shaft 4 is pushed into the avoiding groove 1-1-1 along the radial direction, the inner groove surface of the avoiding groove 1-1-1 is positioned on the arc surface of the rotating shaft 4 which is mutually matched, the driving belt wheel 3 is connected at one end of the rotating shaft 4, and the depth degree pushed in through the rotating shaft 4, the purpose of tensioning the synchronous belt 8 can be achieved, and in addition, the rotating shaft 4 is supported through the independent bearing seat 4-1, so that the complexity of the vertical plate 1-1 can be reduced, and the manufacturing cost of the support 1 can be reduced. The driving belt wheel 3, the transmission wheel 5, the idler wheel 6 and the driven belt wheel 7 are all positioned on the outer side of one vertical plate 1-1. Because the characteristic problem of the sag of the synchronous belt 8 is that it is usually difficult to control the forward and reverse rotation of the synchronous belt 8 by controlling the forward and reverse rotation of one driving pulley 3, in order to meet the forward and reverse rotation function of the conveying shaft 2, two rotating shafts 4 can be respectively arranged on two sides of the bracket 1, one driving pulley 3 is respectively arranged at one end of each of the two rotating shafts 4, when the synchronous belt 8 is connected with one driving pulley 3, the conveying shaft 2 can be controlled to rotate towards one direction, when the synchronous belt 8 selects the other driving pulley 3, the conveying shaft 2 can be controlled to rotate towards the other direction, so that the conveying device can convey products 9 towards two different directions, as shown in fig. 3, when the driving pulley 3 drives the synchronous belt 8 to rotate clockwise, the products 9 can be controlled to move towards the right; when the driving belt wheel 3 drives the synchronous belt 8 to rotate anticlockwise, the product 9 can be controlled to move leftwards.

The embodiment of the present application further provides an AOI detection apparatus, including the transmission device provided in any of the above embodiments, and for its beneficial effects, reference is made to the transmission device described above, which is not described herein again.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The AOI detection device and the transmission device thereof provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims

1. A transmission device of AOI detection equipment is characterized by comprising:

a support (1);

the conveying shafts (2) are rotatably connected to the support (1), the conveying shafts (2) are arranged horizontally and in parallel, the top ends of the circumferential surfaces of the conveying shafts are located in the same conveying plane, and a gap is formed between any two adjacent conveying shafts (2); and

and the driving mechanism is connected with the conveying shafts (2) and is used for driving the conveying shafts (2) to rotate towards the same direction.

2. The conveying device according to claim 1, wherein the driving mechanism comprises a synchronous belt (8), a driving pulley (3) and a plurality of synchronous wheels (5), the synchronous wheels (5) are arranged at one end of each conveying shaft (2), and the synchronous belt (8) is sleeved on the synchronous wheels (5) and the driving pulley (3).

3. A transmission device according to claim 2, wherein the driving mechanism further comprises a plurality of idle wheels (6), the idle wheels (6) are arranged between two adjacent synchronous wheels (5) or between the driving pulley (3) and the synchronous wheel (5) adjacent to the driving pulley (3), and the idle wheels (6) are wound with the synchronous belt (8).

4. A transfer device according to claim 3, characterized in that the drive mechanism further comprises a tension pulley (6-1) around which the timing belt (8) is wound.

5. Conveying device according to claim 4, characterized in that the total number of idle wheels (6) and tensioning wheels (6-1) is the same as the number of synchronizing wheels (5) and corresponds one to one.

6. A transmission device according to claim 3, characterized in that the drive mechanism further comprises a passive pulley (7), and the timing belt (8) is wound around all the timing wheels (5) and the idle pulley (6) and then wound back to the drive pulley (3) through the passive pulley (7).

7. A transfer device according to claim 3, wherein the axes of the idle wheels (6) are located in a same horizontal plane and are not coplanar with the horizontal plane in which the synchronous wheels (5) are located.

8. Transmission device according to claim 1, characterized in that the circumferential side of each transport shaft (2) is provided with a completely black matte layer.

9. The transfer device according to any one of claims 1 to 8, wherein the support (1) comprises two parallel vertical plates (1-1), and the two ends of the transfer shaft (2) are rotatably connected to the two vertical plates (1-1), respectively.

10. An AOI inspection apparatus comprising a transmission device according to any one of claims 1 to 9.