CN215005050U - Vacuum adsorption type backlight module defect detection device - Google Patents
Vacuum adsorption type backlight module defect detection device Download PDFInfo
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- CN215005050U CN215005050U CN202120462827.XU CN202120462827U CN215005050U CN 215005050 U CN215005050 U CN 215005050U CN 202120462827 U CN202120462827 U CN 202120462827U CN 215005050 U CN215005050 U CN 215005050U
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Abstract
The utility model relates to a vacuum adsorption formula backlight unit defect detecting device, include: a machine base plate; a support is installed, and a servo driving mechanism is arranged on a machine table bottom plate; the camera is positioned right above the detection jig, one side of the detection jig is provided with a lighting module, and the detection jig is provided with a negative pressure adsorption hole; vacuum adsorption mechanism, vacuum adsorption mechanism includes: the jig comprises a lifting plate, a jig pressing plate and a lifting cylinder, wherein the lifting plate is provided with an opening in the middle of the jig pressing plate, the jig pressing plate is provided with a vacuum communication hole, and the vacuum communication hole is connected with a vacuum generator. During detection, air in the product to be detected is pumped out through the vacuum generator to form negative pressure, the films of the product to be detected can be pressed and attached more tightly through the atmospheric pressure, gaps among the films of the product to be detected are eliminated, photographing collection is carried out through the camera, misjudgment of the camera is reduced, and the detection effect is improved.
Description
Technical Field
The utility model relates to a backlight unit processing technology field, in particular to vacuum adsorption formula backlight unit defect detecting device.
Background
The backlight module is one of the key components of the liquid crystal display panel, and because the liquid crystal does not have the light emitting characteristic, a light emitting source must be added on the bottom surface of the panel to achieve the full color display effect. The quality of the backlight module determines important parameters such as brightness, emergent light uniformity, color level and the like of the liquid crystal display screen, and determines the light emitting effect of the liquid crystal display screen to a great extent, so that the detection of defects such as foreign matters, white dots, scratches, poor lamination, uneven brightness and the like of inner and outer layers is particularly important in the production process of the backlight module.
At present, most factories mainly depend on manual work to inspect the backlight module, the detection method not only consumes a large amount of labor cost and has low efficiency, but also can generate visual fatigue due to manual long-time inspection to cause a missing detection phenomenon, and different manual inspection results have difference.
With the development of automation technology, a CCD visual detection system is adopted to replace manual detection to become a mainstream trend, a CCD camera is used for high-resolution/high-speed detection and snapshot in the CCD visual detection system, after the CCD camera is used for high-speed snapshot, high-pixel product pictures obtained by the snapshot are transmitted to a visual processing system at a high speed, each product picture is subjected to high-speed operation processing according to a product bad feature library and a visual tool algorithm, then a product identification result is output, and finally, a blanking system marks good products/bad products according to the identification result given by the visual processing system and respectively places the good products/bad products at different positions of a production line.
However, when there is a gap between the light source, the light guide plate, the reflective sheet and the optical film in the existing CCD vision inspection system, the CCD camera is prone to be misjudged, and good products/defective products cannot be accurately distinguished, which affects the inspection effect of the apparatus.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a vacuum adsorption formula backlight unit defect detecting device has the advantage that improves the detection effect.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a vacuum adsorption formula backlight unit defect detecting device, includes:
a machine base plate;
the test device comprises a mounting bracket which is assembled on a machine table bottom plate in a sliding mode, a test space is formed between the mounting bracket and the machine table bottom plate, and a servo driving mechanism which is used for driving the mounting bracket to move back and forth is arranged on the machine table bottom plate;
the detection jig is borne on the machine base plate and used for positioning a product to be detected, the camera is positioned right above the detection jig, one side of the detection jig is provided with a lighting module, and the detection jig is provided with a negative pressure adsorption hole;
bear in the vacuum adsorption mechanism of installing support, vacuum adsorption mechanism includes: the jig comprises a mounting support, a lifting plate, a jig pressing plate and a lifting cylinder, wherein the lifting plate is assembled on the mounting support in a sliding mode along the vertical direction, the jig pressing plate is fixed on the lifting plate and matched with the detection jig, the lifting cylinder is used for driving the lifting plate to move up and down in a reciprocating mode, the lifting plate is provided with an opening in the middle of the jig pressing plate, a vacuum communication hole which is used for being communicated with the negative pressure adsorption hole is formed in the jig pressing plate, and the vacuum communication hole is connected with a vacuum generator.
Realize above-mentioned technical scheme, during the detection, will wait to detect the product inlay card location in detection tool, the module of lighting a lamp will wait to detect the product and illuminate, slide to the top of detection tool by servo drive mechanism drive installing support, lift cylinder drive lifter plate pushes down afterwards, make tool clamp plate and detection tool dock, negative pressure adsorption hole and vacuum intercommunicating pore are linked together, it takes out the formation negative pressure to start vacuum generator will wait to detect the air in the product afterwards, can will wait to detect more inseparabler of pressing between each diaphragm of product through atmospheric pressure this moment, the space between each diaphragm in the product of waiting to detect has been eliminated, shoot by the camera again and gather, the erroneous judgement that the camera takes place has been reduced, detection effect has been improved.
As a preferred scheme of the utility model, be equipped with the sliding rail on the board bottom plate, sliding connection has the slider on the sliding rail, the installing support includes: the sliding block fixing device comprises a fixing block fixed on the sliding block, a supporting column fixed on the fixing block, and an installation frame plate fixed at the top of the supporting column, wherein the middle of the installation frame plate is provided with an opening.
As an optimized scheme of the utility model, be equipped with the guide pin bushing on the installation deckle board, be equipped with on the lifter plate with guide pin bushing matched with guide pillar.
As an optimized scheme of the utility model, the top of guide pillar is equipped with the installation piece, be fixed with the buffer on the installation piece.
The technical scheme is realized so as to adjust the lifting stroke of the lifting plate.
As a preferred scheme of the utility model, be connected with vacuum joint on the vacuum intercommunicating pore.
To sum up, the utility model discloses following beneficial effect has:
the embodiment of the utility model provides a through providing a vacuum adsorption formula backlight unit defect detecting device, include: a machine base plate; the test device comprises a mounting bracket which is assembled on a machine table bottom plate in a sliding mode, a test space is formed between the mounting bracket and the machine table bottom plate, and a servo driving mechanism which is used for driving the mounting bracket to move back and forth is arranged on the machine table bottom plate; the detection jig is borne on the machine base plate and used for positioning a product to be detected, the camera is positioned right above the detection jig, one side of the detection jig is provided with a lighting module, and the detection jig is provided with a negative pressure adsorption hole; bear in the vacuum adsorption mechanism of installing support, vacuum adsorption mechanism includes: the jig comprises a mounting support, a lifting plate, a jig pressing plate and a lifting cylinder, wherein the lifting plate is assembled on the mounting support in a sliding mode along the vertical direction, the jig pressing plate is fixed on the lifting plate and matched with the detection jig, the lifting cylinder is used for driving the lifting plate to move up and down in a reciprocating mode, the lifting plate is provided with an opening in the middle of the jig pressing plate, a vacuum communication hole which is used for being communicated with the negative pressure adsorption hole is formed in the jig pressing plate, and the vacuum communication hole is connected with a vacuum generator. When detecting, will wait to detect the product inlay card location in detection tool, the module of lighting a lamp will wait to detect the product and illuminate, slide to detection tool's top by servo drive mechanism drive installing support, lift cylinder drive lifter plate pushes down afterwards, make tool clamp plate and detection tool dock, negative pressure adsorption hole and vacuum intercommunicating pore are linked together, start vacuum generator afterwards and take out the air that will wait to detect in the product and form the negative pressure, can will wait to detect more inseparabler that presses between each diaphragm of product through atmospheric pressure this moment, the space between each diaphragm in the product of waiting to detect has been eliminated, shoot the collection by the camera again, the erroneous judgement that the camera takes place has been reduced, detection effect has been improved.
Drawings
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a state diagram of the negative pressure adsorption process of the embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. a machine base plate; 11. a servo drive mechanism; 12. moving the slide rail; 13. a slider; 2. mounting a bracket; 21. a fixed block; 22. a support pillar; 23. installing a frame plate; 24. a guide sleeve; 3. detecting a jig; 31. a lighting module; 32. a negative pressure adsorption hole; 4. a vacuum adsorption mechanism; 41. a lifting plate; 42. a jig pressing plate; 43. a lifting cylinder; 44. a vacuum communication hole; 45. a guide post; 46. mounting blocks; 47. a buffer; 48. a vacuum joint; 5. and (5) detecting the product to be detected.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
A vacuum absorption type backlight module defect detecting device, as shown in fig. 1 and fig. 2, comprising: a machine base plate 1; the test device comprises a mounting bracket 2 which is assembled on a machine base plate 1 in a sliding manner, a test space is formed between the mounting bracket 2 and the machine base plate 1, and a servo driving mechanism 11 which is used for driving the mounting bracket 2 to move back and forth is arranged on the machine base plate 1; the detection jig 3 is borne on the machine base plate 1 and used for positioning a product 5 to be detected, the camera is positioned right above the detection jig 3, a lighting module 31 is arranged on one side of the detection jig 3, and a negative pressure adsorption hole 32 is formed in the detection jig 3; and a vacuum adsorption mechanism 4 carried on the mounting bracket 2.
Specifically, be equipped with movable slide rail 12 on board bottom plate 1, sliding connection has slider 13 on movable slide rail 12, and installing support 2 includes: be fixed in slider 13's fixed block 21, be fixed in fixed block 21's support column 22 and be fixed in the installation deckle board 23 at support column 22 top, the middle part opening of installation deckle board 23, detection tool 3 is last to be seted up with wait to detect product 5 matched with location notch, the opening in installation deckle board 23 middle part is corresponding with the location notch, servo drive mechanism 11 can select for use structures such as belt structure, screw mechanism.
The vacuum adsorption mechanism 4 includes: the vacuum suction device comprises a lifting plate 41 which is assembled on the mounting support 2 in a sliding mode along the vertical direction, a jig pressing plate 42 which is fixed on the lifting plate 41 and matched with the detection jig 3, and a lifting cylinder 43 which is used for driving the lifting plate 41 to reciprocate, wherein the middle parts of the lifting plate 41 and the jig pressing plate 42 are opened, a vacuum communication hole 44 which is communicated with the negative pressure adsorption hole 32 is formed in the jig pressing plate 42, the vacuum communication hole 44 is connected with a vacuum generator, and a vacuum connector 48 is connected to the vacuum communication hole so as to be connected with the vacuum generator.
The mounting frame plate 23 is provided with a guide sleeve 24, the lifting plate 41 is provided with a guide post 45 matched with the guide sleeve 24, meanwhile, the top of the guide post 45 is provided with a mounting block 46, and a buffer 47 is fixed on the mounting block 46 so as to adjust the lifting stroke of the lifting plate 41.
During detection, to wait to detect product 5 inlay card location in detection tool 3, it will wait to detect product 5 and illuminate to light up the module 31, slide to the top of detection tool 3 by servo drive mechanism 11 drive installing support 2, lift cylinder 43 drive lifter plate 41 pushes down afterwards, make tool clamp plate 42 and detection tool 3 butt joint, negative pressure adsorption hole 32 is linked together with the vacuum intercommunicating pore, start vacuum generator afterwards and take out the air in waiting to detect product 5 and form the negative pressure, can wait to detect more inseparabler that presses between each diaphragm of product 5 through atmospheric pressure this moment, the clearance between each diaphragm in waiting to detect product 5 has been eliminated, shoot by the camera again and gather, the erroneous judgement that the camera takes place has been reduced, detection effect has been improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a vacuum adsorption formula backlight unit defect detecting device which characterized in that includes:
a machine base plate;
the test device comprises a mounting bracket which is assembled on a machine table bottom plate in a sliding mode, a test space is formed between the mounting bracket and the machine table bottom plate, and a servo driving mechanism which is used for driving the mounting bracket to move back and forth is arranged on the machine table bottom plate;
the detection jig is borne on the machine base plate and used for positioning a product to be detected, the camera is positioned right above the detection jig, one side of the detection jig is provided with a lighting module, and the detection jig is provided with a negative pressure adsorption hole;
bear in the vacuum adsorption mechanism of installing support, vacuum adsorption mechanism includes: the jig comprises a mounting support, a lifting plate, a jig pressing plate and a lifting cylinder, wherein the lifting plate is assembled on the mounting support in a sliding mode along the vertical direction, the jig pressing plate is fixed on the lifting plate and matched with the detection jig, the lifting cylinder is used for driving the lifting plate to move up and down in a reciprocating mode, the lifting plate is provided with an opening in the middle of the jig pressing plate, a vacuum communication hole which is used for being communicated with the negative pressure adsorption hole is formed in the jig pressing plate, and the vacuum communication hole is connected with a vacuum generator.
2. The vacuum absorption type backlight module defect detecting device of claim 1, wherein a movable sliding rail is disposed on the machine base plate, a sliding block is connected to the movable sliding rail in a sliding manner, and the mounting bracket comprises: the sliding block fixing device comprises a fixing block fixed on the sliding block, a supporting column fixed on the fixing block, and an installation frame plate fixed at the top of the supporting column, wherein the middle of the installation frame plate is provided with an opening.
3. The vacuum absorption type backlight module defect detecting device as claimed in claim 2, wherein a guide sleeve is disposed on the mounting frame plate, and a guide post is disposed on the lifting plate and engaged with the guide sleeve.
4. The vacuum absorption type backlight module defect detecting device as claimed in claim 3, wherein a mounting block is disposed on a top of the guiding post, and a buffer is fixed on the mounting block.
5. The vacuum absorption type backlight module defect detecting device as claimed in claim 4, wherein a vacuum connector is connected to the vacuum communication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120462827.XU CN215005050U (en) | 2021-03-03 | 2021-03-03 | Vacuum adsorption type backlight module defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120462827.XU CN215005050U (en) | 2021-03-03 | 2021-03-03 | Vacuum adsorption type backlight module defect detection device |
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| CN215005050U true CN215005050U (en) | 2021-12-03 |
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| CN202120462827.XU Active CN215005050U (en) | 2021-03-03 | 2021-03-03 | Vacuum adsorption type backlight module defect detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115890198A (en) * | 2023-01-05 | 2023-04-04 | 苏州图锐智能科技有限公司 | Vehicle-mounted LED backboard assembling and detecting machine |
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2021
- 2021-03-03 CN CN202120462827.XU patent/CN215005050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115890198A (en) * | 2023-01-05 | 2023-04-04 | 苏州图锐智能科技有限公司 | Vehicle-mounted LED backboard assembling and detecting machine |
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