CN110480340B

CN110480340B - Automatic assembling device and assembling method for backlight module

Info

Publication number: CN110480340B
Application number: CN201910808974.5A
Authority: CN
Inventors: 艾琪; 陈军; 艾祖东; 李广超
Original assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Current assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2021-07-09
Anticipated expiration: 2039-08-29
Also published as: CN110480340A

Abstract

The invention discloses an automatic assembling device and an assembling method of a backlight module, and relates to the technical field of liquid crystal display equipment. This backlight unit's automatic assembly device includes: the film clamping device comprises a claw hook and a claw hook driving assembly, wherein the claw hook driving assembly can drive the claw hook to hook a hanging lug on a horizontal film, and turn the claw hook by a preset angle to enable the tail end of the claw hook to be in a horizontal state and enable the film to be hooked on the tail end of the claw hook in a vertical state; a pushing assembly capable of pushing the diaphragm on the claw hook onto the catch of the back plate. Through the mode of automatically grabbing the diaphragm horizontally and automatically assembling the diaphragm vertically, automatic grabbing of the diaphragm and automatic assembly of the diaphragm and the back plate are realized, the assembly efficiency is greatly improved, and the problem of fouling of the diaphragm caused by assembly of the diaphragm by adsorbing the diaphragm by using a sucking disc all the time is solved.

Description

Automatic assembling device and assembling method for backlight module

Technical Field

The invention relates to the technical field of liquid crystal display equipment, in particular to an automatic assembling device and an assembling method of a backlight module.

Background

The backlight module of the liquid crystal display device is usually assembled by manually lifting the diaphragm, aligning the diaphragm with a buckle on the back plate, and clamping the diaphragm into the ear clip. However, for a large-size backlight module, manual correction and alignment are required continuously, efficiency is low, meanwhile, the sucking disc is used for sucking the diaphragm in the whole assembling process for a long time, and the probability of dirtying and damaging the diaphragm is increased.

In order to solve the technical problem, in the prior art, a robot is adopted to control a sucker to automatically suck the surface of a diaphragm so as to pick up the diaphragm. However, since the diaphragm is made of soft plastic with a thickness of 0.2-0.4 mm, the diaphragm will be warped in a shape of collapsing in the middle when two sets of suckers are adopted. As shown in fig. 1, the two sets of suction cups 2 respectively suck the surface of the membrane 6 from different areas of the membrane 6, and the area where the membrane 6 is not sucked will bend down under the action of gravity. For this reason, the number of suction cups 2 needs to be increased, and even if a plurality of sets of suction cups 2 (see fig. 2) are used, this defect cannot be completely avoided, and continuous warpage in a wavy shape occurs. Therefore, no matter how many groups of suction cups 2 are adopted, the problem of local concave deformation of the membrane 6 is certain to occur, and once the hanging lug deforms, the accurate positioning of the hanging lug and the buckle is difficult to ensure. Therefore, the position of the hanger of the diaphragm 6 needs to be corrected, but since the robot cannot perform complicated correction, the position of the hanger needs to be corrected manually, and the assembly efficiency is greatly reduced by manual correction.

Disclosure of Invention

An object of the present invention is to provide an automatic assembling apparatus for a backlight module, which can solve the problem in the prior art that manual correction is required due to deformation of a film when the film is grabbed by using a suction cup, and improve assembling efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a backlight unit's automatic assembly device, backlight unit includes diaphragm and rather than the backplate of joint, wherein, backlight unit's automatic assembly device includes:

the film clamping device comprises a claw hook and a claw hook driving assembly, wherein the claw hook driving assembly can drive the claw hook to hook a lug on the film in a horizontal state, turn the claw hook by a preset angle to enable the tail end of the claw hook to be in a horizontal state, and hook the film in a vertical state to the tail end of the claw hook;

a pushing assembly capable of pushing the diaphragm on the claw hook onto a catch of the back plate.

Optionally, the claw hook comprises a hook end and a supporting arm in smooth transition connection with the hook end, and the hook end and the supporting arm are arranged at an included angle.

Optionally, the hooking end has a gradually decreasing cross-sectional width in a direction approaching the end of the hooking end.

Optionally, the claw hook drive assembly comprises:

the first driving unit can drive the claw hook to move to the position right below the hanging lug along the horizontal direction; the first driving unit can also drive the claw hook to ascend so as to insert the claw hook into the hanging lug; the first driving unit can also drive the claw hook hooked with the diaphragm to move to a preset position, so that the diaphragm is changed from a horizontal state to a vertical state under the action of gravity;

the overturning unit can drive the claw hook positioned at the preset position to overturn for a preset angle so as to enable the tail end of the claw hook to be in a horizontal state.

Optionally, the flipping unit comprises:

the first mounting rack is rotatably connected with the claw hook;

the one end of first extensible member with first mounting bracket rotates to be connected, the other end of first extensible member with the claw hook rotates to be connected.

Optionally, the claw hook drive assembly further comprises:

the second driving unit is used for driving the claw hook to move from the preset position to an assembling position, so that the tail end of the claw hook is abutted to the buckle of the back plate.

Optionally, the claw hook is in the assembled position, and an upper surface of a distal end of the claw hook is flush with an upper surface of the catch.

Optionally, the pushing assembly comprises:

the push plate is sleeved on the claw hook in a sliding manner;

the linear driving unit is used for driving the membrane to move along the extending direction of the claw hook so that the membrane is separated from the claw hook.

Optionally, the automatic assembling device of the backlight module further comprises:

a stacking platform on which a plurality of the membranes stacked in a height direction are placed;

the sucking disc assembly is used for sucking the diaphragm arranged at the uppermost part of the stacking platform;

and the adsorption driving assembly can drive the sucker assembly adsorbed with the diaphragm to act so that the hanging lugs of the diaphragm extend out of the stacking platform.

Another objective of the present invention is to provide an automatic assembling method for a backlight module, which solves the problems in the prior art that when a sucking disc is used to suck a diaphragm, a hanging lug of the diaphragm is difficult to align with a buckle when deformed, and needs to be manually corrected and assembled, and reduces the problem of fouling of the diaphragm when the sucking disc is used to suck the diaphragm for assembly.

the automatic assembling method of the backlight module adopts the automatic assembling device of the backlight module to assemble the backlight module, and comprises the following steps:

the claw hook is driven by the claw hook driving component to hook a hanging lug on the diaphragm in a horizontal state, the claw hook is turned over by a preset angle to enable the tail end of the claw hook to be in a horizontal state, and the diaphragm is hooked on the tail end of the claw hook in a vertical state;

pushing the diaphragm on the claw hook onto the catch of the back plate by the pushing assembly.

Optionally, the step of driving the film, on which the claw hook is hooked in a horizontal state, to be hung on the hanger by the claw hook driving assembly, turning the claw hook by a preset angle to make the tail end of the claw hook in a horizontal state, and making the film be hooked on the tail end of the claw hook in a vertical state includes:

the first driving unit of the claw hook driving assembly drives the claw hook to hook the hanging lug on the diaphragm in a horizontal state;

the first driving unit drives the claw hook to move to a preset position, so that the diaphragm is changed from a horizontal state to a vertical state under the action of gravity;

through the upset unit drive the claw hook upset is predetermine the angle to make the end of claw hook is the horizontality, makes the diaphragm is vertical state hook in the end of claw hook.

Optionally, before the step of driving the film hooking unit to hook the film in a horizontal state by the film hooking driving unit, turning the film hooking unit by a predetermined angle to make the end of the film hooking unit in a horizontal state, and hooking the film in a vertical state to the end of the film hooking unit, the method further comprises:

the diaphragm is arranged at the top of the stacking platform in an adsorption mode through the sucker component, and the sucker component which is adsorbed with the diaphragm is driven to move through the adsorption driving component, so that the hanging lugs of the diaphragm extend out of the stacking platform.

Optionally, before the step of pushing the membrane on the claw hook onto the catch of the back plate by the pushing assembly, the method further comprises:

and the claw hook hooked with the diaphragm is driven by the second driving unit to move from the preset position to the assembling position, so that the tail end of the claw hook is abutted against the buckle of the back plate, and the upper surface of the tail end of the claw hook is aligned with the upper surface of the buckle.

The invention has the beneficial effects that:

according to the invention, the diaphragm which is horizontally placed is hooked by the claw hook, the diaphragm is hooked on the claw hook in a vertical state, then the claw hook is turned over by a preset angle to enable the tail end of the claw hook to be in a horizontal state, the diaphragm naturally slides to the tail end of the claw hook, and then the diaphragm on the claw hook is pushed onto the fastener of the back plate by the pushing assembly. The assembly mode of horizontally and automatically grabbing the membrane and vertically and automatically assembling the membrane is realized, the problem that the assembly efficiency is low due to the fact that concave deformation is easy to occur when the sucking disc grabs the membrane and needs manual correction when the sucking disc grabs the membrane and is assembled is solved, and the assembly efficiency is greatly improved; the fouling problem of the membrane is reduced, thereby avoiding unnecessary economic loss.

Drawings

FIG. 1 is a diagram illustrating a state of a diaphragm warped in a middle-collapsed shape by sucking with two sets of sucking discs in the prior art;

FIG. 2 is a state of continuous wave-shaped warping of a diaphragm sucked by a plurality of groups of suckers in the prior art;

FIG. 3 is a schematic view of a driving claw hook provided by an embodiment of the present invention hooking a hanging lug on a diaphragm in a horizontal state;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a partial enlarged view at B in FIG. 3;

FIG. 6 is a schematic diagram of an embodiment of the present invention driving a grapple in a predetermined position to flip a predetermined angle to bring the end of the grapple into a horizontal position and driving the grapple from the predetermined position to an assembly position;

FIG. 7 is an enlarged view of a portion of FIG. 6 at D;

FIG. 8 is a schematic view of a diaphragm on a claw hook being pushed onto a backplate buckle as provided by an embodiment of the present invention;

FIG. 9 is a schematic diagram of a driving claw hook hooked with a diaphragm according to an embodiment of the present invention, wherein the diaphragm is changed from a horizontal state to a vertical state under the action of gravity;

FIG. 10 is an enlarged view of a portion of FIG. 9 at C;

FIG. 11 is an enlarged view of a portion of FIG. 8 at E;

FIG. 12 is a schematic view of a diaphragm on a drive dog provided in accordance with an embodiment of the present invention moving in a horizontal direction to push the diaphragm onto a catch of a backplate;

FIG. 13 is an enlarged view of a portion of FIG. 12 at F;

FIG. 14 is a schematic view of a membrane positioned uppermost in a stacking platform according to embodiments of the present invention;

fig. 15 is a flow chart of an assembly method provided by an embodiment of the invention.

1. A stacking platform; 2. a suction cup; 3. a second mounting bracket; 4. a claw hook; 41. a hooking end; 411. a first upper surface; 5. a turning unit; 51. a first mounting bracket; 52. a first telescoping member; 6. a membrane; 61. hanging a lug; 7. buckling; 71. a second upper surface; 8. pushing the plate; 9. a linear drive unit; 10. a first positioning device; 11. a second positioning device; 12. a first rotating shaft; 13. a second rotation shaft; 14. a slide block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The embodiment provides an automatic assembly device of a backlight module, wherein the backlight module comprises a diaphragm and a back plate clamped with the diaphragm, a plurality of hanging lugs are arranged on the diaphragm, and the hanging lugs are positioned on the same side of the diaphragm. The back plate is provided with buckles corresponding to the hanging lugs one by one, and after the hanging lugs are hung on the buckles, the diaphragm and the back plate are assembled.

As shown in fig. 1 and 2, in the prior art, the diaphragm 6 is usually made of soft plastic with a thickness of 0.2-0.4 mm, and no matter how many sets of suction cups 2 are adopted, local concave deformation is certainly generated, when the hangers deform, the buckles are difficult to align, and once the deformation causes position deflection, the position correction needs to be performed on the hangers, and the robot cannot complete complicated correction work.

As shown in fig. 3, the automatic assembling apparatus for a backlight module provided in this embodiment can solve the above problem, and the apparatus includes a claw hook 4, a claw hook driving assembly and a pushing assembly. The claw hook driving component can drive the claw hook 4 to hook the hanging lug 61 on the diaphragm 6 in the horizontal state, and turn the claw hook 4 for a preset angle to enable the tail end of the claw hook 4 to be in the horizontal state and enable the diaphragm 6 to be in the vertical state and to be hooked on the tail end of the claw hook 4. The pushing assembly can push the membrane 6 on the claw hook 4 onto the catch 7 of the backplate, thereby completing the assembly of the membrane 6 and backplate.

By means of the mode of horizontally and automatically grabbing the diaphragm and vertically and automatically assembling the diaphragm, the problem that when the diaphragm is grabbed by the sucker, the diaphragm is prone to concave deformation and needs manual correction, so that assembly efficiency is reduced is solved, and assembly efficiency is greatly improved.

Alternatively, as shown in fig. 4 and 5, the claw hook 4 comprises a hooking end 41 and a supporting arm connected with the hooking end 41 in a smooth transition manner, and the hooking end 41 is arranged at an angle to the supporting arm. Preferably, the hooking end 41 is perpendicular to the support arm, the hooking end 41 and the support arm are connected in a smooth transition manner, so that the membrane 6 can naturally slide to the support arm from the hooking end 41 under the action of gravity, and the membrane 6 can naturally slide to the hooking end 41 from the support arm when the claw hook 4 is turned over.

Alternatively, as shown in fig. 4, the hooking end 41 has a gradually decreasing cross-sectional width in a direction approaching the distal end of the hooking end 41 of the claw hook 4, facilitating accurate and rapid insertion of the distal end of the hooking end 41 into the hanging lug 61. As shown in fig. 3, a plurality of sets of claws 4 can be disposed on the claw driving assembly, the number of claws 4 is the same as the number of lugs 61 on the membrane 6 and the number of back plate buckles 7, and the distance between two adjacent claws 4 is adjusted in advance according to the distance between two adjacent lugs 61 on the membrane 6.

As shown in fig. 3 and 5, the claw hook driving assembly includes a first driving unit, a reversing unit 5, and a second driving unit. The first driving unit comprises a horizontal driving unit and a vertical driving unit, and the horizontal driving unit can drive the claw hook 4 to move to the position right below the membrane hanging lug 61 along the horizontal direction; the vertical driving unit can drive the claw hook 4 to ascend so as to insert the hooking end 41 of the claw hook 4 into the hanging lug 61 of the membrane 6, and then the horizontal driving unit and/or the vertical driving unit drives the claw hook 4 hooked with the membrane 6 to move to a preset position, in the process, the membrane 6 loses the support below and is changed from a horizontal state to a vertical state under the action of gravity; the overturning unit 5 can drive the claw hook 4 at a preset position to overturn for a preset angle, so that the tail end of the claw hook 4 is in a horizontal state, and meanwhile, the membrane 6 can naturally slide to the tail end of the claw hook 4 and still be hung at the tail end of the claw hook 4 in a vertical state; the second driving unit is used for driving the claw hook 4 to move from the preset position to the assembling position, so that the tail end of the claw hook 4 is abutted to the buckle 7 of the back plate.

The second driving means may be the first driving means, or may have the same structure as the first driving means. In this embodiment, the horizontal driving unit and the vertical driving unit may adopt an air cylinder, a hydraulic cylinder or a linear motor, and may also adopt a motor screw structure, and the like, which is not limited specifically herein.

As shown in fig. 5, the turning unit 5 includes a first mounting bracket 51 and a first expansion member 52. The first mounting frame 51 is rotatably connected with the claw hook 4 through the first rotating shaft 12; one end of the first telescopic member 52 is rotatably connected with the first mounting bracket 51, the other end of the first telescopic member 52 is connected with the claw hook 4 through a rotating shaft, and the rotating shaft is located at the end of the claw hook 4. As shown in fig. 5 and 6, when the extension length of the movable end of the first expansion piece 52 is shortened, the grapple 4 rotates counterclockwise (in the direction indicated by the arrow in fig. 6) about the first rotation shaft 12, and when the grapple 4 rotates counterclockwise by 90 ° about the first rotation shaft 12, the hooking end 41 of the grapple 4 changes from the vertical state to the horizontal state.

First telescoping member 52 may be a hydraulic cylinder, linear motor, or pneumatic cylinder, among others. In this embodiment, the first telescopic member 52 is a hydraulic cylinder.

The present embodiment refers to the upper surface of the end of the claw hook 4 as the first upper surface 411 and the upper surface of the buckle 7 as the second upper surface 71, and as shown in fig. 7, the second driving unit drives the claw hook 4 to move from the preset position to the assembling position, abuts the end of the hooking end 41 against the buckle 7, and makes the first upper surface 411 flush with the second upper surface 71, so as to push the film 6 on the claw hook 4 onto the buckle 7 by the pushing assembly.

In order to ensure the accuracy of the position of the hooking end 41 of the claw hook 4 and the hanging lug 61 of the film 6, the automatic assembling device of the backlight module further comprises a first positioning device 10 and a second positioning device 11. When the first driving unit drives the hook 4 to move in the horizontal direction to move the hooking end 41 of the hook 4 to a position directly below the lug 61 of the film 6 as shown in fig. 3, the first positioning device 10 positions the hook 4, and after the positioning is completed, the first driving unit drives the hook 4 to move upward to accurately insert the hooking end 41 of the hook 4 into the lug 61 of the film 6. As shown in fig. 8, when the claw hook 4 is driven by the second driving unit to move from the preset position to the fitting position, positioning is performed by the second positioning means 11, and it is determined whether the first upper surface 411 is flush with the second upper surface 71.

In this embodiment, the first positioning device 10 and the second positioning device 11 both use cameras, and positioning is achieved by taking pictures and processing images. The number of the cameras is mainly determined according to the specific model and the length of the membrane 6 along the distribution direction of the plurality of hanging lugs 61, and in the embodiment, two cameras are provided. The positioning of the image processing of the picture, particularly by taking a picture with a camera, is the prior art and is not described herein in detail.

As shown in fig. 9, since each back plate is usually matched with a plurality of film sheets 6, after the first driving unit drives the claw hook 4 to grip the first film sheet 6, and the film sheet 6 changes from the horizontal state to the vertical state under the action of gravity, the first driving unit can drive the claw hook 4 to continuously grip the next film sheet 6 until the required number of film sheets 6 are gripped. The backlight module in this embodiment is a side-light type backlight module, and includes 2-4 films 6.

As shown in fig. 10, 11 and 13, the pushing assembly includes a pushing plate 8 and two linear driving units 9 which act synchronously, and the pushing plate 8 is slidably sleeved on the claw hook 4. Specifically, the slide block 14 is slidably sleeved on the claw hook 4, the push plate 8 is connected to the slide block 14, and the diaphragm 6 naturally sliding onto the claw hook 4 under the action of gravity is limited by the push plate 8. One end of each linear driving unit 9 is rotatably connected to the claw hook 4 through a second rotating shaft 13, and the other end is rotatably connected to the slider 14. When the movable ends of the two linear driving units 9 extend, the sliding block 14 will be driven to slide along the extending direction of the claw hook 4, so that the sliding block 14 drives the push plate 8 to drive the membrane 6 to move along the extending direction of the claw hook 4, and the membrane 6 is separated from the claw hook 4.

Alternatively, as shown in fig. 11 and 12, the linear driving units 9 are preferably hydraulic cylinders, two linear driving units 9 are distributed on both sides of the claw hook 4 in the width direction, and a piston rod and a fixed end of each hydraulic cylinder are respectively rotatably connected to the slider 14 and one end of the second rotating shaft 13. When the second positioning means 11 confirm that the first upper surface 411 is flush with the second upper surface 71, the piston rods of the two hydraulic cylinders continue to extend, the driving slide 14 moves in the direction of extension of the claw hook 4, and the pushing plate 8 pushes the membrane 6 onto the catch 7. The linear driving unit 9 may be provided with only one, that is, one hydraulic cylinder, air cylinder, or the like.

Preferably, a sensor, which may be a displacement sensor or a pressure sensor, is disposed on the back plate. When the push plate 8 pushes the membrane 6 to move for a preset displacement or the pressure on the membrane 6 reaches a preset pressure, the push plate 8 is considered to have pushed the membrane 6 onto the buckle 7, and the linear driving unit 9 can be reset at this time. The second driving unit drives the claw 4 from the fitting position back to the preset position; the overturning unit 5 drives the claw hook 4 to rotate by 90 degrees clockwise (opposite to the direction shown by the arrow in fig. 6) around the first rotating shaft 12, so that the supporting arm of the claw hook 4 returns to the horizontal position, and the hooking end 41 is in a vertical state; the first driving unit drives the hooking end 41 of the claw hook 4 again to move to the position right below the film hooking lug 61 to continue to grab the film 6 for the next assembly.

As shown in fig. 14, the automatic assembling device of the backlight module further includes a stacking platform 1, a suction cup assembly and an adsorption driving assembly, wherein the stacking platform 1 includes a bottom plate and two side plates disposed on the same side of the bottom plate, the bottom plate preferably is a rectangular plate, and the two side plates are respectively connected to two adjacent sides of the bottom plate. A plurality of membranes 6 are placed on the bottom plate in a horizontal state and stacked in the height direction. In order to position the membrane 6, when the membrane 6 is placed, two adjacent sides of the membrane 6 abut against the two side plates, respectively.

Above-mentioned sucking disc subassembly includes sucking disc 2, second mounting bracket 3 and vacuum pump (not shown in the figure), and sucking disc 2 is installed on second mounting bracket 3, adsorbs drive assembly to connect in second mounting bracket 3, controls sucking disc 2 through the vacuum pump and adsorbs or loosen diaphragm 6.

The second mounting frame 3 is driven to move by the adsorption driving assembly, so that the sucking disc 2 moves to a position right above the diaphragm 6 close to one side of the diaphragm hanging lug 61 and abuts against the diaphragm 6; the vacuum pump controls the sucking disc 2 to adsorb the uppermost diaphragm 6; the adsorption driving assembly drives the second mounting frame 3 to drive the sucking disc 2 adsorbed with the membrane 6 to move, so that the hanging lug 61 of the membrane 6 extends out of the stacking platform 1, and the claw hook 4 is conveniently inserted into the hanging lug 61; after that, the vacuum pump controls the suction cup 2 to release the diaphragm 6, waiting for the claw hook 4 to hook the diaphragm 6.

When the adsorption driving assembly drives the second mounting frame 3 to drive the sucker 2 to move so that the sucker 2 adsorbs the diaphragm 6 again, the last diaphragm 6 adsorbed by the sucker 2 is required to be completely separated from the stacking platform 1.

In order to simplify the movement of the suction cup assembly, when the membrane 6 is placed on the stacking platform 1, it is required that the side of the membrane 6 provided with the hanging lug 61 is placed on the same side of the stacking platform 1, and the hanging lug 61 and one of the side plates are located on the opposite sides of the bottom plate.

In order to ensure the stability of the membrane 6 when the suction cups 2 suck the membrane 6, a plurality of suction cups 2 are usually used, and the plurality of suction cups 2 extend along the distribution direction of the hanging lugs 61. The number of the suckers 2 can be set according to the requirement, such as two, three, four or more, and in the embodiment, the suckers 2 are provided with four.

Above-mentioned first positioner 10 locates on second mounting bracket 3, drives second mounting bracket 3 through adsorbing the drive assembly and drives when sucking disc 2 moves to diaphragm 6 directly over, fixes a position sucking disc 2 through first positioner 10, ensures the accuracy of relative position between sucking disc 2 and the diaphragm 6.

The adsorption driving assembly, the first driving unit, the second driving unit, the overturning unit 5 and the linear driving unit 9 are arranged on the robot, the adsorption driving assembly, the first driving unit, the second driving unit, the overturning unit 5 and the linear driving unit 9 are controlled to move through a controller on the robot, the motion track of the second driving unit is not limited, and the requirement of the whole motion process is only required to be met.

As shown in fig. 15, this embodiment further provides a method for automatically assembling a backlight module by using the automatic assembling device for a backlight module, which specifically includes the following steps:

s1, adsorbing the diaphragm 6 on the top of the stacking platform 1 through the sucker assembly, and driving the sucker assembly adsorbing the diaphragm 6 to move through the adsorption driving assembly, so that the hanging lug 61 of the diaphragm 6 extends out of the stacking platform 1.

And S2, driving the claw hook 4 to hook the hanging lug 61 on the diaphragm 6 in a horizontal state through the claw hook driving component, turning the claw hook 4 by a preset angle to enable the tail end of the claw hook 4 to be in a horizontal state, and enabling the diaphragm 6 to be in a vertical state to be hooked on the tail end of the claw hook 4.

Specifically, the step S2 includes:

s21, the claw hook 4 is driven to hook the hanging lug 61 on the diaphragm 6 in a horizontal state through a first driving unit of the claw hook 4 driving assembly;

s22, driving the claw hook 4 to move to a preset position through the first driving unit, so that the diaphragm 6 is changed from a horizontal state to a vertical state under the action of gravity;

and S23, driving the claw hook 4 to turn over by a preset angle through the turning unit 5, so that the tail end of the claw hook 4 is in a horizontal state, and the membrane 6 is hung at the tail end of the claw hook 4 in a vertical state.

Preparation is made for the subsequent pushing assembly to push the film 6 on the claw 4 to move in the horizontal direction by the above-described step S23.

Since each backplate is usually matched with a plurality of membranes 6, for this purpose, after a plurality of membranes 6 are hooked on the claws 4, the plurality of membranes 6 are pushed onto the clips 7 of the backplate at one time in step S3. Specifically, the claw hook 4 finishes grabbing the first film 6 and moves to the preset position, the film 6 naturally slides down under the action of gravity, after the horizontal state is changed into the vertical state, the sucker assembly moves to the position above the stacking platform 1 again, and then the steps S21 and S22 are repeated until the required number of films 6 are hooked on the claw hook 4.

And S3, pushing the membrane 6 on the claw hook 4 to the buckle 7 of the back plate through the pushing assembly.

Before step S3, the method further includes: the claw hook 4 with the diaphragm 6 hooked thereon is driven by the second driving unit to move from the preset position to the fitting position, the tip of the claw hook 4 is brought into abutment with the catch 7 of the backplate, and the first upper surface 411 is brought into alignment with the second upper surface 71, so that the pushing assembly pushes the diaphragm 6 on the claw hook 4 onto the catch 7.

In this embodiment, snatch the diaphragm of horizontality through adopting the claw hook, with the diaphragm of vertical state and the mode of buckle assembly, not only improved assembly efficiency, still alleviateed among the prior art because of absorbing the diaphragm assembly with the sucking disc, the stained problem that causes the diaphragm.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The utility model provides a backlight unit's automatic assembly device, backlight unit includes diaphragm (6) and rather than the backplate of joint, its characterized in that, backlight unit's automatic assembly device includes:

the film clamping device comprises a claw hook (4) and a claw hook driving assembly, wherein the claw hook driving assembly can drive the claw hook (4) to hook a hanging lug (61) on the film (6) in a horizontal state, turn the claw hook (4) by a preset angle to enable the tail end of the claw hook (4) to be in a horizontal state, and enable the film (6) to be hooked on the tail end of the claw hook (4) in a vertical state;

a pushing assembly capable of pushing the membrane (6) on the claw hook (4) onto a catch (7) of the backplate; the pushing assembly comprises a pushing plate (8) and a linear driving unit (9), and the pushing plate (8) is slidably sleeved on the claw hook (4); one end of the linear driving unit (9) is rotationally connected with the claw hook (4), the other end of the linear driving unit is rotationally connected with the push plate (8), and the linear driving unit (9) is used for driving the membrane (6) to move along the extending direction of the claw hook (4) so that the membrane (6) is separated from the claw hook (4).

2. The automatic assembling device of a backlight module according to claim 1, wherein the claw hook (4) comprises a hooking end (41) and a supporting arm smoothly transitionally connected with the hooking end (41), and the hooking end (41) is arranged at an angle with respect to the supporting arm.

3. The automatic assembling device of a backlight unit according to claim 2, wherein the hooking end (41) has a sectional width gradually decreasing in a direction approaching the end of the hooking end (41).

4. The automated assembling apparatus for a backlight module according to claim 1, wherein said claw driving unit comprises:

a first driving unit capable of driving the claw hook (4) to move in a horizontal direction to a position right below the hanging lug (61); the first driving unit can also drive the claw hook (4) to ascend so as to insert the claw hook (4) into the hanging lug (61); the first driving unit can also drive the claw hook (4) hooked with the diaphragm (6) to move to a preset position, so that the diaphragm (6) is changed from a horizontal state to a vertical state under the action of gravity;

the overturning unit (5) can drive the claw hook (4) at the preset position to overturn by a preset angle so that the tail end of the claw hook (4) is in a horizontal state.

5. The automatic assembling device of a backlight module according to claim 4, wherein the flip unit (5) comprises:

a first mounting bracket (51), wherein the first mounting bracket (51) is rotatably connected with the claw hook (4);

the first telescopic piece (52), one end of the first telescopic piece (52) with first mounting bracket (51) rotate and be connected, the other end of first telescopic piece (52) with claw hook (4) rotate and be connected.

6. The automated assembling apparatus for a backlight module according to claim 4, wherein said claw driving unit further comprises:

the second driving unit is used for driving the claw hook (4) to move from the preset position to the assembling position, and the tail end of the claw hook (4) is abutted to the buckle (7) of the back plate.

7. The automatic assembling device for a backlight unit according to claim 6, wherein when said claw hook (4) is in said assembling position, an upper surface of a distal end of said claw hook (4) is flush with an upper surface of said catch (7).

8. The apparatus for automatically assembling a backlight module according to claim 1, further comprising:

a stacking platform (1) on which a plurality of membranes (6) stacked in the height direction are placed;

the sucking disc component is used for sucking the membrane (6) arranged at the uppermost part of the stacking platform;

the adsorption driving assembly can drive the sucker assembly adsorbed with the diaphragm (6) to act so that the hanging lugs (61) of the diaphragm (6) extend out of the stacking platform (1).

9. An automatic assembling method of a backlight module, characterized in that the automatic assembling device of the backlight module according to any one of claims 1 to 8 is used to assemble the backlight module, the backlight module comprises a film (6) and a back plate clamped with the film, the automatic assembling device of the backlight module comprises a stacking platform (1), a sucker component, an adsorption driving component, a claw hook (4), a claw hook driving component and a pushing component, the film (6) is placed on the stacking platform, the sucker component is used for adsorbing the film (6), and the adsorption driving component can drive the sucker component adsorbed with the film (6) to move, so that the hanging lugs (61) of the film (6) extend out of the stacking platform (1); the claw hook driving assembly comprises a first driving unit, a turning unit (5) and a second driving unit, wherein the first driving unit and the second driving unit are used for driving the claw hook (4) to move, and the turning unit (5) is used for driving the claw hook (4) to turn; the pushing assembly can push the membrane (6) on the claw hook (4) to a buckle (7) of the back plate; the automatic assembling method of the backlight module comprises the following steps:

the claw hook (4) is driven by the claw hook driving component to hook the hanging lug (61) on the diaphragm (6) in a horizontal state, the claw hook (4) is turned by a preset angle, so that the tail end of the claw hook (4) is in a horizontal state, and the diaphragm (6) is hung at the tail end of the claw hook (4) in a vertical state;

pushing the membrane (6) on the claw hook (4) onto the catch (7) of the back plate by the pushing assembly.

10. The method of automatically assembling a backlight module according to claim 9, wherein the step of driving the hook (4) to hook the hanging lug (61) of the film (6) in a horizontal state by the hook driving assembly, turning the hook (4) by a predetermined angle to make the end of the hook (4) in a horizontal state, and making the film (6) hook the end of the hook (4) in a vertical state comprises:

the claw hook (4) is driven by the first driving unit of the claw hook driving assembly to hook the hanging lug (61) on the diaphragm (6) in a horizontal state;

the claw hook (4) is driven by the first driving unit to move to a preset position, so that the diaphragm (6) is changed from a horizontal state to a vertical state under the action of gravity;

through upset unit (5) drive claw hook (4) upset preset angle to make the end of claw hook (4) is the horizontality, makes diaphragm (6) be vertical state hook in the end of claw hook (4).

11. The method of automatically assembling a backlight module according to claim 9, wherein before the step of driving the hook (4) to hook the tab (61) of the film (6) in a horizontal state by the hook driving assembly, turning the hook (4) by a predetermined angle to make the end of the hook (4) in a horizontal state, and making the film (6) hook the end of the hook (4) in a vertical state, the method further comprises:

through sucking disc subassembly adsorbs and arranges in stack platform (1) the top diaphragm (6), and through adsorb the drive assembly drive and adsorb the diaphragm (6) the sucking disc subassembly action makes diaphragm (6) hangers (61) stretch out stack platform (1).

12. The method of automatically assembling a backlight module according to claim 9, further comprising, before the step of pushing the film (6) on the claw hook (4) to the catch (7) of the back plate by the pushing member:

the claw hook (4) hooked with the diaphragm (6) is driven by the second driving unit to move from a preset position to an assembly position, the tail end of the claw hook (4) is abutted with the buckle (7) of the back plate, and the upper surface of the tail end of the claw hook (4) is aligned with the upper surface of the buckle (7).