CN211785180U

CN211785180U - Automatic optical detection equipment for backlight source

Info

Publication number: CN211785180U
Application number: CN201922309252.3U
Authority: CN
Inventors: 黄永雄; 黄德欢
Original assignee: HUIZHOU WAI CHI ELECTRONICS Ltd
Current assignee: HUIZHOU WAI CHI ELECTRONICS Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-27
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a backlight automatic optical detection equipment, including carousel (1), colourity detection mechanism (2) and picture detection mechanism (3) all set up in carousel (1) outside, evenly be provided with a plurality of fixing bases (11) on carousel (1), fixing base (11) can fix not equidimension fixed tool (12), two at least adjacent sides in fixing base (11) are provided with and light subassembly (13), and light subassembly (13) slide the outside that sets up at fixing base (11), light subassembly (13) can light the backlight. The utility model is used for the automatic optical detection of backlight provides detection efficiency and accuracy.

Description

Automatic optical detection equipment for backlight source

Technical Field

The utility model relates to a backlight automated production equipment technical field, concretely relates to backlight automated optical inspection equipment.

Background

The backlight is an essential component of various passive display devices, and only the backlight provides the backlight to drive passive light emitting components such as liquid crystal panels and the like to realize display functions. In order to ensure the image display effect of the display device, parameters such as chromaticity and image of the backlight source must meet requirements, and thus the parameters such as chromaticity and image need to be detected during the production of the backlight source. In the prior art, the backlight product detection is carried out by manually processing auxiliary fixtures and instruments, and the product is lightened by using a lightening fixture and a universal test box to carry out detection on parameters such as chromaticity, pictures and the like. The detection mode has low efficiency and needs more manpower, the long-time lighting detection irradiation has certain influence on the eyes of the staff, the possibility of missing detection exists, and the product quality also has hidden danger.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to not enough in the background art, provide a backlight automatic optical detection equipment that can solve.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides an automatic optical detection equipment of backlight, includes carousel, colourity detection mechanism and picture detection mechanism all set up in the carousel outside, evenly be provided with a plurality of fixing bases on the carousel, the fixing base can fix the fixed tool of equidimension not, two at least adjacent sides of fixing base are provided with the subassembly of lighting, and the subassembly of lighting slides and sets up the outside at the fixing base, the backlight can be lighted to the subassembly of lighting.

Each lighting assembly comprises a sliding rail, a sliding block, a lifting driving piece and a pressure head, the sliding rail is arranged on the fixed seat, the sliding block is arranged on the sliding rail in a sliding mode, the lifting driving piece is arranged on the sliding block, the pressure head is arranged at the movable end of the lifting driving piece, and the pressure head is electrically connected with the power supply.

Further, the lighting assembly further comprises a locking piece, wherein the locking piece is arranged on the sliding block and can lock the sliding block and the sliding rail.

Furthermore, the turntable is also provided with a swing driving mechanism, and the swing driving mechanism can drive the fixed seat to swing on the turntable.

Further, still include unloading mechanism, unloading mechanism sets up in the carousel outside.

Further, unloading mechanism includes unloading support frame, unipolar manipulator, lift cylinder, grabs material cylinder and material clamp, unipolar manipulator sets up on the unloading support frame, the lift cylinder sets up and serves in the activity of unipolar manipulator, it serves in the activity of lift cylinder to grab the material cylinder setting, the material clamp sets up and serves in the activity of grabbing the material cylinder.

Further, the chromaticity detection mechanism comprises a chromaticity detection support and a chromaticity detection camera, and the chromaticity detection camera is arranged on the chromaticity detection support.

Further, the chromaticity detection mechanism further comprises a transverse adjustment assembly and a vertical adjustment assembly, the transverse adjustment assembly can adjust the transverse position of the chromaticity detection camera on the chromaticity detection support, and the vertical adjustment assembly can adjust the vertical position of the chromaticity detection camera on the chromaticity detection support.

Further, the picture detection mechanism comprises a picture detection support and a picture detection camera, and the picture detection camera is arranged on the picture detection support in an adjustable mode.

Furthermore, the image detection cameras are arranged in a plurality of numbers, and each image detection camera is respectively arranged at the position right above the fixed jig, in the front lateral direction, in the rear lateral direction, in the left lateral direction and in the right lateral direction.

The utility model discloses the beneficial effect who realizes mainly has following several:

1. the automatic optical detection equipment for the backlight source comprises a turntable, a chromaticity detection mechanism and a picture detection mechanism, wherein the backlight source is moved by the rotation of the turntable, the backlight source is moved to the chromaticity detection mechanism for chromaticity detection, and the backlight source is moved to the picture detection mechanism for picture detection, so that the automatic optical detection of the backlight source is realized.

2. Different fixed jigs are installed by setting up the fixing base on the carousel, can adapt to the backlight of equidimension not and carry out optical detection. At least two adjacent sides of fixing base are provided with the subassembly of lighting, and the subassembly of lighting slides and sets up in the outside of fixing base, thereby can compromise through the subassembly of lighting that two adjacent sides set up to the backlight of power cord connection pad in different sides (long limit or minor face), compromise through the position that the subassembly was lighted in the slip change to the backlight of power cord connection pad in the different positions of backlight side, can guarantee various sizes from this, the power cord connection pad is in different sides, the backlight unit of the different positions of side carries out optical inspection, make the commonality of backlight automated optical inspection stronger.

Drawings

Fig. 1 is a schematic structural diagram of an entire automatic optical backlight detection device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a turntable of an automatic optical backlight inspection apparatus according to an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram illustrating connection of a fixing seat, a fixing jig and a swing driving mechanism of an automatic optical inspection apparatus for a backlight according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a blanking mechanism of an automatic optical backlight inspection apparatus according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a chromaticity detection mechanism of an automatic optical backlight detection apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a picture detection mechanism of an automatic optical backlight detection apparatus according to an embodiment of the present invention.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

To facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples.

Example one

Referring to fig. 1 to 7, an automatic optical inspection apparatus for backlight is used for inspecting the chromaticity and the image of the backlight. The automatic optical detection equipment of the backlight source comprises a turntable 1, a chromaticity detection mechanism 2 and a picture detection mechanism 3, wherein the turntable 1 is of a rotatable disc structure and can be driven to rotate by a motor and the like; the chromaticity detection mechanism 2 and the picture detection mechanism 3 are both arranged outside the turntable 1, the backlight source can be moved by rotating the turntable 1, the backlight source is moved to the chromaticity detection mechanism 2 for chromaticity detection, and the backlight source is moved to the picture detection mechanism 3 for picture detection. A plurality of fixing seats 11 are uniformly arranged on the turntable 1, a structure with four fixing seats 11 is shown in the embodiment, and actually, other numbers of fixing seats 11 can be arranged; the fixing seat 11 can fix fixing jigs 12 with different sizes, specifically, the fixing jigs 12 with different sizes can be selected according to backlight sources with different sizes, the fixing jig 12 with a large size can be adopted for the backlight source with a large size, and if the backlight source with a small size needs to be detected, the fixing jig 12 with a small size can be replaced; specifically, a plurality of screw holes can be arranged on the fixed seat 11, and the fixed jigs 12 with different sizes can be fixed in different screw holes in a threaded manner; different fixed jigs are installed by setting up the fixing base on the carousel, can adapt to the backlight of equidimension not and carry out optical detection.

Referring to fig. 1 and 2, the fixing base 11 is provided with a lighting assembly 13, and the lighting assembly 13 lights the backlight source, so as to perform optical detection on the backlight source. At least two adjacent sides of fixing base 11 are provided with lighting component 13, and lighting component 13 slides and sets up in the outside of fixing base 11, thereby give consideration to the backlight of power cord connection pad at different sides (long limit or minor face) can give consideration to lighting component 13 that two adjacent sides set up, give consideration to the backlight of power cord connection pad at the different positions in backlight side can give consideration to through the position that slides and change lighting component 13, can guarantee various size and dimension from this, the backlight unit that power cord connection pad is in different sides, the different positions of side carries out optical detection, make backlight automated optical inspection equipment's commonality stronger. In this embodiment, the lighting assembly 13 is disposed on two adjacent sides of the fixing base 11.

Referring to fig. 3, each of the lighting elements 13 may have the following structure: the lifting device comprises a sliding rail 131, a sliding block 132, a lifting driving piece 133 and a pressure head 134, wherein the sliding rail 131 is arranged on the fixed seat 11, the sliding rail 131 can be arranged outside the fixed seat 11, and the sliding block 132 is provided with a sliding groove and is arranged on the sliding rail 131 in a sliding manner through the sliding groove; the lifting driving member 133 is arranged on the sliding block 132, and the lifting driving member 133 can adopt a telescopic cylinder; the pressing head 134 is disposed at the movable end of the lifting driving member 133, and the pressing head 134 has a pointed abutting head for abutting against a PCB contact board on the backlight FPC and the fixing jig 12. During operation, the sliding block 132 can be moved to a desired position (a position corresponding to a power line connection pad of the backlight source) on the sliding rail 131, and then the driving head 134 is driven by the lifting driving member 133 to descend so as to press-contact the PCB contact board placed on the fixed jig 12, so as to electrically communicate the backlight source with the power source, thereby lighting the backlight source.

Referring to fig. 3, as a further preferred embodiment, the lighting assembly 13 is further provided with a locking member 135, and the locking member 135 is disposed on the sliding block 132 and can lock the sliding block 132 with the sliding rail 131. The locking member 135 may be an eccentric wheel rotatably disposed on the sliding block 132, the eccentric wheel is disposed on one side of the sliding rail 131, and a rotating handle is disposed on the eccentric wheel; when the lighting assembly 13 needs to be fixed on the slide rail 131, the eccentric wheel can be rotated by rotating the handle, so that the side with the larger diameter of the eccentric wheel is tightly abutted to the slide rail 131, the slide block 132 can be tightly clamped on the slide rail 131, and the pressure head 134 is fixed; when it is necessary to move the lighting assembly 13 again, the eccentric wheel can be rotated by rotating the handle, so that the side with smaller diameter of the eccentric wheel is close to the slide rail 131, so that the eccentric wheel is not in direct contact with the slide rail 131, and the slide block 132 can slide on the slide rail 131.

Referring to fig. 4, in order to detect optical performances of the backlight source at different angles, the turntable 1 is further provided with a swing driving mechanism 14, and the swing driving mechanism 14 can drive the fixing base 11 to swing on the turntable 1, so that when optical performances of the backlight source at different angles need to be detected, the fixing base 11 can be driven to rotate by an angle through the swing driving mechanism 14, the backlight source thereon also rotates by an angle, and further, chromaticity and a picture of the backlight source at the angle are detected. Specifically, a support 15 can be arranged on the turntable, the fixing seat 11 is rotatably arranged on the support 15, a servo motor is used as a driving part of the swing driving mechanism 14, and the fixing seat 11 is driven by the servo motor to swing on the support 15 by a certain angle.

Referring to fig. 1, 2 and 5, the backlight automatic optical detection device in this embodiment includes four stations, which are a feeding station a, a chromaticity detection station b, a picture detection station c and a discharging station d, respectively, the chromaticity detection mechanism 2 is located at the chromaticity detection station b, the picture detection mechanism 3 is located at the picture detection station c, and the feeding station a and the discharging station d can be manually fed and discharged. Unloading mechanism 4 includes unloading support frame 41, unipolar manipulator 42, lift cylinder 43, grabs material cylinder 44 and material clamp 45, unipolar manipulator 42 sets up on unloading support frame 41, lift cylinder 43 sets up on unipolar manipulator 42's activity end, it sets up on lift cylinder 43's activity end to grab material cylinder 44, material clamp 45 sets up and is holding on grabbing material cylinder 44's activity end. Therefore, the material clamp 45 can be driven to open and close by the material grabbing cylinder 44 to grab the backlight source; the material clamp 45 is moved in a vertical two-dimensional plane through the single-shaft mechanical arm 42 and the lifting cylinder 43, and the backlight source is taken out of the fixed jig 12 and moved to a subsequent station or directly fed.

Referring to fig. 1 and 6, the chromaticity detection mechanism 2 may have a structure including a chromaticity detection support 21 and a chromaticity detection camera 24, and the chromaticity detection camera 24 is disposed on the chromaticity detection support 21. The chromaticity detection mechanism 2 further comprises a horizontal adjustment assembly 22 and a vertical adjustment assembly 23, the horizontal adjustment assembly 22 can adjust the horizontal position of the chromaticity detection camera 24 on the chromaticity detection support 21, and the vertical adjustment assembly 23 can adjust the vertical position of the chromaticity detection camera 24 on the chromaticity detection support 21, so that the position of the chromaticity detection camera 24 can be adjusted as required. The chromaticity detection camera 24 may employ an industrial camera.

Referring to fig. 6, the vertical adjustment assembly 23 may have the following structure: the chromaticity detection camera 24 is fixed on the mounting support 232, the mounting support 232 is arranged on a guide rail 231 on the mounting plate 236 in a sliding manner, a lead screw nut (not shown) is driven to move through rotation of a lead screw 233, and the lead screw nut is fixed on the mounting support 232, so that the chromaticity detection camera 24 can vertically move on the mounting plate 236 through rotation of the lead screw; the screw 233 is connected with a hand wheel 234, and the screw can be manually rotated by rotating the hand wheel; the hand wheel 234 is further provided with a locking piece 235, so that the hand wheel 234 can be locked after the position of the chromaticity detection camera 24 is adjusted, and the position change of the chromaticity detection camera 24 is avoided. The structure of the lateral adjustment assembly 22 can be arranged with reference to the vertical adjustment assembly 23, and will not be described in detail herein.

Referring to fig. 1 and 7, the image detection mechanism 3 includes an image detection support 31 and an image detection camera 32, and the position of the image detection camera 32 on the image detection support 31 is adjustable, so that the position of the image detection camera 32 can be adjusted as required. The position of the frame detection camera 32 can be adjusted by referring to the vertical adjustment assembly 23, and the detailed description thereof is omitted. The scene detection camera 32 may also employ an industrial camera. The image detection cameras 32 are preferably provided in plural numbers, so that the images of the backlight can be detected from plural different angles at a time, and the detection efficiency is higher. Generally, five image detection cameras 32 are provided, and each image detection camera 32 is respectively provided at a position right above, in a front side direction, in a rear side direction, in a left side direction and in a right side direction of the fixed jig 12, and images are taken and detected from right above, in the front side direction, in the rear side direction, in the left side direction and in the right side direction of the backlight.

When the automatic optical detection equipment for the backlight source works, the backlight source is manually fed into the fixed jig 12 at the feeding station a, and the lighting component 13 lights the backlight source; then the rotating disc 1 rotates, the backlight source is rotated to a chromaticity detection station b, a picture of the lightening of the backlight source is shot through a chromaticity detection camera 24, and the picture is compared with the standard chromaticity, so that whether the luminous chromaticity of the backlight source is normal or not is judged; then, the turntable 1 continues to rotate, the backlight source is rotated to the picture detection station c, pictures when the backlight source is lightened are shot from various angles through the picture detection cameras 32, and the pictures are compared with the pictures with standard angles to judge whether the pictures when the backlight source is lightened are normal; and finally, rotating the turntable 1 to rotate the backlight source to a blanking station d, and blanking the backlight source through a blanking mechanism 4.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a backlight automated optical inspection equipment which characterized in that: including carousel (1), colourity detection mechanism (2) and picture detection mechanism (3) all set up in carousel (1) outside, evenly be provided with a plurality of fixing base (11) on carousel (1), fixing base (11) can fix not equidimension fixed tool (12), two at least adjacent sides in fixing base (11) are provided with and light subassembly (13), and it slides the outside that sets up at fixing base (11) to light subassembly (13), it can light the backlight to light subassembly (13).

2. The backlight automated optical inspection apparatus of claim 1, wherein: each it all includes slide rail (131), slider (132), lift driving piece (133) and pressure head (134) to light subassembly (13), slide rail (131) set up on fixing base (11), slider (132) slide and set up on slide rail (131), lift driving piece (133) set up on slider (132), pressure head (134) set up on the activity end of lift driving piece (133), pressure head (134) and power electric connection.

3. The backlight automated optical inspection apparatus of claim 2, wherein: the lighting assembly (13) further comprises a locking piece (135), wherein the locking piece (135) is arranged on the sliding block (132) and can lock the sliding block (132) and the sliding rail (131).

4. The backlight automatic optical detection device according to any one of claims 1 to 3, characterized in that: the turntable (1) is further provided with a swing driving mechanism (14), and the swing driving mechanism (14) can drive the fixing seat (11) to swing on the turntable (1).

5. The backlight automated optical inspection apparatus of claim 4, wherein: the automatic feeding device is characterized by further comprising a discharging mechanism (4), wherein the discharging mechanism (4) is arranged on the outer side of the turntable (1).

6. The backlight automated optical inspection apparatus of claim 5, wherein: unloading mechanism (4) include unloading support frame (41), unipolar manipulator (42), lift cylinder (43), grab material cylinder (44) and material clamp (45), unipolar manipulator (42) set up on unloading support frame (41), lift cylinder (43) set up and serve at the activity of unipolar manipulator (42), it sets up and serves at the activity of lift cylinder (43) to grab material cylinder (44), material clamp (45) set up and serve at the activity of grabbing material cylinder (44).

7. The backlight automated optical inspection apparatus of claim 4, wherein: the chromaticity detection mechanism (2) comprises a chromaticity detection support (21) and a chromaticity detection camera (24), and the chromaticity detection camera (24) is arranged on the chromaticity detection support (21).

8. The backlight automated optical inspection apparatus of claim 7, wherein: the chromaticity detection mechanism (2) further comprises a transverse adjustment assembly (22) and a vertical adjustment assembly (23), the transverse adjustment assembly (22) can adjust the transverse position of the chromaticity detection camera (24) on the chromaticity detection bracket (21), and the vertical adjustment assembly (23) can adjust the vertical position of the chromaticity detection camera (24) on the chromaticity detection bracket (21).

9. The backlight automated optical inspection apparatus of claim 4, wherein: the picture detection mechanism (3) comprises a picture detection support (31) and a picture detection camera (32), and the picture detection camera (32) is arranged on the picture detection support (31) in an adjustable mode.

10. The backlight automated optical inspection apparatus of claim 9, wherein: the image detection cameras (32) are arranged in a plurality, and each image detection camera (32) is respectively arranged at the position right above the fixed jig (12), in the front lateral direction, in the rear lateral direction, in the left lateral direction and in the right lateral direction.