Automatic assembling equipment for backlight module

Abstract

The invention relates to the field, in particular to automatic assembling equipment for a backlight module. Comprising a working line and a three-axis moving mechanism arranged beside the working line, and further comprises a plurality of bearing mechanisms which are arranged along a working line conveying belt at equal intervals in an array mode and comprise carriers, the carriers are fixedly connected with the upper end of the working line conveying belt, and each assembling mechanism comprises a main support, a main rolling shaft and two limiting clamping mechanisms; the main support is fixedly connected with the output end of the three-axis moving mechanism, the main rolling shaft is rotationally arranged at the lower end of the main support through a shaft seat, the two limiting clamping mechanisms are arranged on the two sides of the main support, each limiting clamping mechanism comprises an auxiliary support, an abutting roller, two receding pressing plates and two laser plane interferometers, the auxiliary supports are in sliding connection with the main support, and the abutting rollers are arranged on the auxiliary supports. The abutting roller is arranged on the side, close to the main rolling shaft, of the lower end of the auxiliary support, the two receding pressing plates are arranged below the auxiliary support in a sliding mode, and the two laser plane interferometers are fixedly connected with the lower ends of the two receding pressing plates respectively.

Description

Technical Field

[0001] The invention relates to a field, and in particular to an automatic assembly device for a backlight module. Background Art

[0002] During the assembly process of the backlight module, because the backlight module is flexible, the protective frame can only be assembled manually to the edge of one side of the backlight module where the PCB board is provided, which results in low assembly efficiency and high labor costs. The traditional installation mechanism often applies pressure in a single way, and it is difficult to accurately control the size and distribution of pressure according to the unevenness of the flexible surface of the backlight module and the distribution of point light sources. This may result in excessive pressure in some areas when installing the protective frame, causing deformation of the backlight module, damage to the point light source, or excessive extrusion of the film material, while insufficient pressure in other areas makes the frame unstable.

[0003] At the same time, when the existing carrier drives the backlight module to move, because the carrier needs to be transferred between different workstations, and ordinary jigs are usually designed according to fixed shapes and sizes, it is difficult to fully adapt to the shape changes of the flexible backlight module. During the movement, it may not be possible to provide sufficient and uniform clamping force to the backlight module, causing the backlight module to shake or loosen in the jig, increasing the possibility of collision and damage. The tiny positioning errors caused by each movement will gradually accumulate, further increasing the risk of position deviation when the protective frame is finally installed.

[0004] Therefore, it is necessary for us to carry out targeted design of the backlight module for the existing assembly equipment to prevent damage to the backlight module during the installation of the protective frame. Summary of the invention

[0005] Based on this, it is necessary to provide a backlight module automatic assembly device to address the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] An automatic backlight module assembly device includes a working line and a three-axis moving mechanism arranged beside the working line, and further includes:

[0008] A plurality of carrying mechanisms are arranged in an array at equal intervals along the working line conveyor belt, including a carrier, and the carrier is fixedly connected to the upper end of the working line conveyor belt;

[0009] A plurality of assembly mechanisms are arranged in an array at equal intervals along the four sides of the lower end of the output end of the three-axis moving mechanism. Each assembly mechanism includes a main bracket, a main roller and two limit clamping mechanisms. The main bracket is fixedly connected to the output end of the three-axis moving mechanism. The main roller is rotatably arranged at the lower end of the main bracket through an axle seat. The two limit clamping mechanisms are arranged on both sides of the main bracket. The limit clamping mechanism includes a sub-bracket, a clamping roller, two retreat pressure plates and two laser plane interferometers. The sub-bracket is slidably connected to the main bracket. The clamping roller is arranged on one side of the lower end of the sub-bracket close to the main roller. The two retreat pressure plates are slidably arranged below the sub-bracket. The two laser plane interferometers are respectively fixedly connected to the lower ends of the two retreat pressure plates.

[0010] Furthermore, the supporting mechanism also includes a plurality of airbags, a plurality of suction cups and four lower baffles. The plurality of airbags are respectively arranged in an array at equal intervals along the four sides of the upper end of the carrier. The plurality of suction cups are respectively arranged on the sides of the plurality of airbags. The plurality of suction cups and the plurality of airbags are independently controlled by a controller and support the module body. The four lower baffles are divided into groups of two by their shapes. Each group of lower baffles is respectively fixedly connected to the two opposite sides of the upper end of the carrier. The plurality of corrugated covers are respectively mounted on the outside of the plurality of suction cups and are fixedly connected to the upper end of the carrier.

[0011] Furthermore, the bearing mechanism also includes a plurality of main racks, and the assembly mechanism also includes a main gear and two sub-gears. The plurality of main racks are respectively arranged in an array at equal intervals along the upper ends of the four lower baffles. The main gears are respectively rotatably connected to the side of the sub-bracket away from the main bracket through the gear seat. The main gear is meshed with the main rack after the sub-bracket moves downward. The two sub-gears are respectively coaxially fixed to the two ends of the main gear and are transmission-connected to the input end of the limit clamping mechanism.

[0012] Furthermore, the position limiting clamping mechanism also includes two first gears, two first bevel teeth and two second bevel teeth. The two first gears are respectively rotatably connected to the two sides of the auxiliary bracket. The two first gears are respectively input ends of the two position limiting clamping mechanisms. The two first bevel teeth are respectively coaxially fixed to the two first gears, and the two second bevel teeth are respectively meshed with the two first bevel teeth. The two second bevel teeth on the same side of the two auxiliary brackets are coaxially fixed.

[0013] Furthermore, the limiting clamping mechanism also includes two first pulleys, two second pulleys, two second gears, two reversing gears, two retreat gears and two retreat racks. The two first pulleys are respectively fixedly connected to the two first bevel teeth coaxially, the two second pulleys are respectively arranged below the two first pulleys and are rotatably connected to the auxiliary bracket, the two second gears are respectively fixedly connected to the two second pulleys coaxially, the two reversing gears are respectively meshed with the two second gears, the two retreat gears are respectively fixedly connected to the two reversing gears coaxially, and the two retreat racks are respectively fixedly connected to the two retreat pressure plates and meshed with the two retreat gears.

[0014] Furthermore, the limiting clamping mechanism also includes a limiting bracket, a clamping bracket, two clamping springs and two limiting blocks. The two limiting brackets are respectively fixedly connected to the lower end of the auxiliary bracket, one end of the two clamping springs are respectively fixedly connected to the two limiting brackets, and the other end is respectively fixedly connected to the clamping brackets, the two limiting blocks are respectively fixedly connected to the two ends of the clamping brackets, the clamping bracket is rotatably connected to the clamping roller, and the two limiting blocks are respectively slidably connected to the two ends of the auxiliary bracket.

[0015] Furthermore, the position-limiting clamping mechanism also includes an arc-shaped guide plate, which is arranged above the abutting roller and fixedly connected to the shaft seat of the main roller. When the abutting roller moves upward, the arc-shaped guide plate abuts against the abutting roller.

[0016] Furthermore, the limiting clamping mechanism also includes a lower pressure plate, two active racks, two intermediate rotating frames, two driven racks and two driven gears. The lower pressure plate is fixedly connected to the auxiliary bracket close to the main rack, the two intermediate rotating frames are respectively fixedly connected to the same side of the two auxiliary brackets, the two active racks are respectively fixedly connected to the upper ends of the two intermediate rotating frames, the two driven gears are respectively rotatably arranged on both sides of the two main brackets through gear seats and meshed with the two active racks, and the two driven racks are respectively fixedly connected to the shaft seats of the two main rollers and meshed with the two driven gears.

[0017] Furthermore, the assembly mechanism also includes a tensioning roller and a tensioning sleeve, the upper end of the tensioning roller is fixedly connected to the main bracket, the lower end is slidably connected to the tensioning sleeve via a tension spring, and the lower end of the tensioning sleeve is fixedly connected to the shaft seat of the main roller.

[0018] Furthermore, the limiting clamping mechanism also includes a rubber roller, which is rotatably connected to one side of the two retreating pressure plates that is close to each other, and the rubber roller abuts against the frame when the two retreating pressure plates move upward.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First: This device uses several air bags and several suction cups to carry the module body. Compared with traditional carriers, the suction cups and air bags can greatly improve the stability of the backlight module on the carrier. The suction force of the suction cup fixes the module in the vertical direction to prevent it from falling, while the propulsion force of the air bag balances the module in the horizontal direction to prevent it from moving left and right or forward and backward. This dual fixing method enables the backlight module to resist interference forces in various directions during the assembly process, such as vibration of the installation mechanism, slight touch of the operator, etc., to ensure that the assembly work can proceed smoothly;

[0021] Second: This device detects the flatness of the upper end of the module body by setting up a laser plane interferometer, so that the frame and the module body will not be affected by unevenness during assembly, and the final installation effect will not be affected by unevenness. Compared with traditional manual installation, this device can achieve automatic assembly, greatly improving work efficiency;

[0022] Third: This device clamps and releases the frame by setting a clamping roller. Compared with the traditional electrical clamping mechanism, the clamping roller clamps the frame non-rigidly under the action of the spring, ensuring that the frame can be moved without causing damage to the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0024] Figure 2 is a three-dimensional structural schematic diagram of the embodiment from another angle;

[0025] Figure 3 is a schematic diagram of the three-dimensional structure of the assembly mechanism and the supporting mechanism in the embodiment;

[0026] Figure 4 is a schematic diagram of the three-dimensional structure decomposition of the assembly mechanism and the supporting mechanism in the embodiment;

[0027] Figure 5 yes Figure 4 A magnified view of the structure at center;

[0028] Figure 6 is a three-dimensional structural schematic diagram of an assembly mechanism in an embodiment;

[0029] Figure 7 is a front view of the assembly mechanism in the embodiment;

[0030] Figure 8 is a three-dimensional structural schematic diagram of the assembly mechanism in another angle in the embodiment;

[0031] Fig. 9 yes Figure 8 Enlarged view of the structure at point B in the middle.

[0032] The numbers in the figure are:

[0033] 1. Working line; 2. Module body; 3. Frame; 4. Carrying mechanism; 5. Carrier; 6. Airbag; 7. Suction cup; 8. Bellows; 9. Lower baffle; 10. Main rack; 11. Assembly mechanism; 12. Main bracket; 13. Main roller; 14. Main gear; 15. Sub gear; 16. Limit clamping mechanism; 17. First gear; 18. First bevel gear; 19. Second bevel gear; 20. Sub bracket; 21. Limit bracket; 23. Limit block; 24. Tightening spring; 25. Clamping bracket; 26. Arc guide plate; 27. Clamping roller; 28. First pulley; 29. ​​Second pulley; 30. Second gear; 31. Reversing gear; 32. Backing gear; 33. Backing rack; 34. Backing pressure plate; 35. Rubber roller; 36. Laser plane interferometer; 37. Active rack; 38. Transfer rack; 39. Driven gear; 40. Driven rack; 41. Tensioning roller; 42. Tensioning sleeve; 43. Lower pressure plate; 44. Three-axis moving mechanism. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] refer to Figures 1 to 9 , an automatic backlight module assembly device, comprising a working line 1 and a three-axis moving mechanism 44 arranged beside the working line 1, and further comprising:

[0036] A plurality of carrying mechanisms 4 are arranged in an array at equal intervals along the conveyor belt of the working line 1, and include a carrier 5, and the carrier 5 is fixedly connected to the upper end of the conveyor belt of the working line 1;

[0037] A plurality of assembly mechanisms 11 are arranged in an array along four sides of the lower end of the output end of the three-axis moving mechanism 44 at equal intervals (e.g. Figure 4 As shown), each assembly mechanism 11 includes a main bracket 12, a main roller 13 and two limit clamping mechanisms 16. The main bracket 12 is fixedly connected to the output end of the three-axis moving mechanism 44. The main roller 13 is rotatably arranged at the lower end of the main bracket 12 through an axle seat. The two limit clamping mechanisms 16 are arranged on both sides of the main bracket 12. The limit clamping mechanism 16 includes a sub-bracket 20, a clamping roller 27, two retreating pressure plates 34 and two laser plane interferometers 36. The sub-bracket 20 is slidably connected to the main bracket 12, and the clamping roller 27 is arranged on one side of the lower end of the sub-bracket 20 close to the main roller 13 (as shown in FIG. Fig. 9 As shown in FIG. 2 , two retreat pressure plates 34 are slidably disposed below the auxiliary bracket 20 , and two laser plane interferometers 36 are fixedly connected to the lower ends of the two retreat pressure plates 34 , respectively.

[0038] During the automatic assembly of the backlight module, refer to Figure 4It can be seen that the frame 3 needs to be buckled on the upper end of the module body 2. At this time, as the device is started, the working line 1 will drive several carriers 5 to move along the conveyor belt on the working line 1. When the carrier 5 moves to the side of the three-axis moving mechanism 44, the three-axis moving mechanism 44 starts and drives several main brackets 12 close to the carrier 5. During this process, the laser plane interferometer 36 will detect the flatness of the upper edge of the module body 2 to ensure that the module body 2 will not be affected by unevenness or offset and affect the installation with the frame 3.

[0039] During the installation process, as the main bracket 12 moves downward, the two retreat pressure plates 34 will move away from each other (the specific process is explained later). When the retreat pressure plates 34 move to the extreme position, the main roller 13 will push the frame 3 to press on the upper end of the module body 2, thereby realizing automatic assembly of the frame 3 and the module body 2.

[0040] In order to supplement the specific structure of the supporting mechanism 4, the following features are also specifically provided:

[0041] The carrying mechanism 4 further includes a plurality of air bags 6, a plurality of suction cups 7 and four lower baffles 9. The plurality of air bags 6 are arranged in an array along the four sides of the upper end of the carrier 5 at equal intervals (refer to Figure 4 and Figure 5 ), a plurality of suction cups 7 are respectively arranged beside a plurality of air bags 6, a plurality of suction cups 7 and a plurality of air bags 6 are independently controlled by a controller and support the module body 2, four lower baffles 9 are divided into two groups by shape, each group of lower baffles 9 is respectively fixedly connected to the two opposite sides of the upper end of the carrier 5, and a plurality of corrugated covers 8 are respectively sleeved on the outside of a plurality of suction cups 7 and fixedly connected to the upper end of the carrier 5. When the module body 2 is placed on the top of the carrier 5, a plurality of suction cups 7 are activated to attract the module body 2 in the direction close to the carrier 5, and a plurality of air bags 6 will push the module body 2 in the direction away from the carrier 5. In this process, the suction cups 7 can be adsorbed on the flat part of the module body 2, and the air bags 6 can be filled in the curved surface or irregular shape part of the module body 2, that is, when the suction cups 7 and the air bags 6 cooperate, the air bags 6 can provide corresponding supporting force according to the flexible deformation of the module, and the suction cups 7 can ensure adsorption while adapting to the flexibility change by balancing the force with the air bags 6.

[0042] The bearing mechanism 4 also includes a plurality of main racks 10, and the assembly mechanism 11 also includes a main gear 14 and two auxiliary gears 15 (refer to Figure 6), a plurality of main racks 10 are arranged in an array at equal intervals along the upper ends of the four lower baffles 9, and the main gears 14 are rotatably connected to the side of the auxiliary bracket 20 away from the main bracket 12 through the gear seats. The main gear 14 meshes with the main rack 10 after the auxiliary bracket 20 moves downward, and the two auxiliary gears 15 are respectively coaxially fixed to the two ends of the main gear 14 and are transmission-connected to the input end of the limit clamping mechanism 16. When the three-axis moving mechanism 44 drives the main bracket 12 to move downward until the main rack 10 meshes with the main gear 14, the main gear 14 will drive the auxiliary gear 15 to rotate.

[0043] In order to supplement the specific structure of the position limiting clamping mechanism 16, the following features are also specifically provided:

[0044] The position limiting clamping mechanism 16 further includes two first gears 17, two first bevel teeth 18 and two second bevel teeth 19. The two first gears 17 are rotatably connected to the two sides of the auxiliary bracket 20 respectively (refer to Figure 7 ), the two first gears 17 are the input ends of the two limit clamping mechanisms 16, the two first bevel teeth 18 are respectively coaxially fixedly connected to the two first gears 17, the two second bevel teeth 19 are respectively meshed with the two first bevel teeth 18, and the two second bevel teeth 19 on the same side of the two auxiliary brackets 20 are coaxially fixedly connected. When the auxiliary gear 15 rotates, it can be known that the auxiliary gear 15 will drive the two first gears 17 to rotate, and the two first gears 17 will drive the two second bevel teeth 19 to rotate through the two first bevel teeth 18, and in this process, refer to Figure 7 It can be seen that the two first bevel teeth 18 located on the same side of the main bracket 12 have opposite rotation directions.

[0045] In order to enable the retreating pressure plate 34 to move away from the main bracket 12 when the main gear 14 and the main rack 10 are in contact, the following features are also specifically provided:

[0046] The limiting clamping mechanism 16 also includes two first pulleys 28, two second pulleys 29, two second gears 30, two reversing gears 31, two retreating gears 32 and two retreating racks 33. The two first pulleys 28 are respectively coaxially fixed to the two first bevel teeth 18 (refer to Figure 8), the two second pulleys 29 are respectively arranged below the two first pulleys 28 and are rotatably connected to the auxiliary bracket 20, the two second gears 30 are respectively coaxially fixedly connected to the two second pulleys 29, the two reversing gears 31 are respectively meshed with the two second gears 30, the two retreating gears 32 are respectively coaxially fixedly connected to the two reversing gears 31, and the two retreating racks 33 are respectively connected to the two retreating pressure plates 34 and meshed with the two retreating gears 32. When the two first bevel teeth 18 rotate, the two first bevel teeth 18 will drive the two second pulleys 29 to rotate through the two first pulleys 28, and after the two second pulleys 29 rotate, they will drive the two reversing gears 31 to rotate through the two second gears 30, and the two reversing gears 31 will drive the two retreating racks 33 to move through the two retreating gears 32, and after the two retreating racks 33 move, they will drive the two retreating pressure plates 34 to move.

[0047] In order to facilitate the two pressing rollers 27 to press against the side ends of the frame 3, the following features are also specifically provided:

[0048] The limiting clamping mechanism 16 also includes a limiting bracket 21, a clamping bracket 25, two clamping springs 24 and two limiting blocks 23. The two limiting brackets 21 are respectively fixedly connected to the lower ends of the auxiliary brackets 20 (refer to Fig. 9 ), one end of the two abutting springs 24 is respectively fixedly connected to the two limit brackets 21, and the other end is respectively fixedly connected to the abutting bracket 25, the two limit blocks 23 are respectively fixedly connected to the two ends of the abutting bracket 25, the abutting bracket 25 is rotatably connected to the abutting roller 27, and the two limit blocks 23 are respectively slidably connected to the two ends of the auxiliary bracket 20. When the frame 3 is driven to move, the two abutting brackets 25 will push the abutting roller 27 to clamp the outer edge of the frame 3 under the action of the two abutting springs 24, ensuring that the frame 3 can be clamped by the two oppositely arranged abutting rollers 27 and can be displaced along with the three-axis moving mechanism 44.

[0049] In order to facilitate the movement of the pressing roller 27 away from the main roller 13, the following features are also provided:

[0050] The position limiting clamping mechanism 16 further includes an arc-shaped guide plate 26, which is disposed above the abutting roller 27 and is fixedly connected to the shaft seat of the main roller 13 (refer to Figure 7 ), the arc guide plate 26 is pressed against the pressing roller 27 when the pressing roller 27 moves upward. When the frame 3 is released, the pressing roller 27 will move upward, and the arc guide plate 26 will limit the pressing roller 27 to ensure that the pressing roller 27 will not remain clamped with the frame 3.

[0051] In order to facilitate the upward movement of the abutting roller 27, the following features are also specifically provided:

[0052] The position limiting clamping mechanism 16 further includes a lower pressing plate 43, two active racks 37, two intermediate transfer racks 38, two driven racks 40 and two driven gears 39. The lower pressing plate 43 is fixedly connected to the auxiliary bracket 20 close to the main rack 10 (refer to Figure 7 ), the two intermediate transfer frames 38 are respectively fixedly connected to the same side of the two auxiliary frames 20, the two active racks 37 are respectively fixedly connected to the upper ends of the two intermediate transfer frames 38, the two driven gears 39 are respectively rotatably arranged on both sides of the two main frames 12 through the gear seats and meshed with the two active racks 37, and the two driven racks 40 are respectively fixedly connected to the shaft seats of the two main rollers 13 and meshed with the two driven gears 39. When the three-axis moving mechanism 44 drives the main bracket 12 to move downward until the lower pressure plate 43 and the upper end of the main rack 10 abut against each other, the main rack 10 will abut against the lower pressure plate 43, and then when the main bracket 12 continues to move downward, the lower pressure plate 43 moves upward relative to the main bracket 12. At this time, the two sub-brackets 20 will move upward synchronously under the action of the intermediate transfer frame 38, and the two active racks 37 will move upward with the movement of the intermediate transfer frame 38, and the intermediate transfer frame 38 will drive the two driven gears 39 meshing with it to rotate during the movement. After the two driven gears 39 rotate, they will drive the main roller 13 to move downward through the two driven racks 40 until the frame 3 abutted by the main roller 13 is separated from the two clamping rollers 27.

[0053] In order to facilitate the reset movement of the main roller 13, the following features are also specifically provided:

[0054] The assembly mechanism 11 further includes a tensioning roller 41 and a tensioning sleeve 42. The upper end of the tensioning roller 41 is fixedly connected to the main bracket 12 (refer to Figure 8 ), the lower end of which is slidably connected to the tension sleeve 42 through a tension spring, and the lower end of the tension sleeve 42 is fixedly connected to the shaft seat of the main roller 13. When the main roller 13 moves downward, the tension roller 41 will move relative to the tension sleeve 42 through the tension spring, thereby ensuring that when the frame 3 and the module body 2 are separated by the subsequent three-axis moving mechanism 44, the main roller 13 will return to the initial position.

[0055] In order to prevent the retreating pressure plate 34 from having a rigid contact with the frame 3 when the auxiliary bracket 20 moves upward, the following features are also specifically provided:

[0056] The position limiting clamping mechanism 16 further includes a rubber roller 35, which is rotatably connected to the side of the two retreating pressure plates 34 that are close to each other (refer to Figure 8 ), the rubber roller 35 abuts against the frame 3 when the two retreating pressure plates 34 move upward. After the two retreating pressure plates 34 move to the limit position, since the auxiliary bracket 20 drives the retreating pressure plates 34 to move upward at this time, the rubber roller 35 abuts against the edge of the frame 3 during the movement, thereby preventing the retreating pressure plates 34 from scratching the frame 3 when moving upward and affecting the quality of the frame 3.

[0057] The working principle of this device is that when the module body 2 is placed on top of the carrier 5, a number of suction cups 7 are activated to attract the module body 2 in the direction close to the carrier 5, and a number of airbags 6 push the module body 2 in the direction away from the carrier 5. During this process, the suction cups 7 can be adsorbed on the flat part of the module body 2, and the airbags 6 can be filled in the curved surface or irregular shape of the module body 2, that is, when the suction cups 7 and the airbags 6 cooperate, the airbags 6 can provide corresponding supporting force according to the flexible deformation of the module body 2, and the suction cups 7 can adapt to the flexibility change by balancing the force with the airbags 6 while ensuring adsorption.

[0058] After the working line 1 is started, it will drive several carriers 5 to move along the conveyor belt on the working line 1. When the carrier 5 moves to the side of the three-axis moving mechanism 44, the three-axis moving mechanism 44 is started and drives several main brackets 12 close to the carrier 5. During this process, the laser plane interferometer 36 will detect the flatness of the upper edge of the module body 2 to ensure that the module body 2 will not affect the installation with the frame 3 due to unevenness or offset.

[0059] It should be noted that the laser plane interferometer 36 is an existing electronic component, which is based on the interference principle of light waves. When two laser beams meet and overlap, light and dark interference fringes will be formed. If the upper surface of the module body 2 is flat, the interference fringes will show a uniform distribution; if there is a flatness problem on the surface, such as protrusions or depressions, the interference fringes will be distorted, deformed, etc. The laser plane interferometer 36 can accurately measure the flatness of the upper end of the module body 2 by analyzing and processing the interference fringes.

[0060] During the installation process, as the main support 12 moves downward, when the main rack 10 and the main gear 14 are meshed, the two retreating pressure plates 34 will move away from each other. When the retreating pressure plates 34 move to the limit position, the main rack 10 will abut against the lower pressure plate 43. Then, when the main support 12 continues to move downward, the lower pressure plate 43 moves upward relative to the main support 12. At this time, the two auxiliary supports 20 will move upward under the action of the intermediate transfer frame 38, and the two active racks 37 will move upward with the movement of the intermediate transfer frame 38 and drive the two driven gears 39 meshed with them to rotate during the movement. After the two driven gears 39 rotate, they will drive the main roller 13 to move downward through the two driven racks 40. At this time, the frame 3 abutted by the main roller 13 will separate from the two pressing rollers 27, thereby realizing the automatic assembly of the module body 2 and the frame 3.

[0061] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An automatic backlight module assembly device, comprising a working line (1) and a three-axis moving mechanism (44) arranged beside the working line (1), characterized in that: Also includes: A plurality of carrying mechanisms (4) are arranged in an array at equal intervals along the conveyor belt of the working line (1), and include a carrier (5), wherein the carrier (5) is fixedly connected to the upper end of the conveyor belt of the working line (1); A plurality of assembly mechanisms (11) are arranged in an array at equal intervals along four sides of the lower end of the output end of the three-axis moving mechanism (44), each assembly mechanism (11) comprises a main support (12), a main roller (13) and two limit clamping mechanisms (16), the main support (12) is fixedly connected to the output end of the three-axis moving mechanism (44), the main roller (13) is rotatably arranged at the lower end of the main support (12) through an axle seat, and the two limit clamping mechanisms (16) are arranged on both sides of the main support (12). The clamping mechanism (16) comprises a sub-bracket (20), a clamping roller (27), two retreating pressure plates (34) and two laser plane interferometers (36); the sub-bracket (20) is slidably connected to the main bracket (12); the clamping roller (27) is arranged on a side of the lower end of the sub-bracket (20) close to the main roller (13); the two retreating pressure plates (34) are slidably arranged below the sub-bracket (20); and the two laser plane interferometers (36) are respectively fixedly connected to the lower ends of the two retreating pressure plates (34).

2. The backlight module automatic assembly equipment according to claim 1, characterized in that: The bearing mechanism (4) further comprises a plurality of air bags (6), a plurality of suction cups (7) and four lower baffles (9). The plurality of air bags (6) are arranged in an array at equal intervals along four sides of the upper end of the carrier (5). The plurality of suction cups (7) are arranged beside the plurality of air bags (6). The plurality of suction cups (7) and the plurality of air bags (6) are independently controlled by a controller and support the module body (2). The four lower baffles (9) are divided into groups of two by shape. Each group of lower baffles (9) is respectively fixedly connected to two opposite sides of the upper end of the carrier (5). The plurality of corrugated covers (8) are respectively sleeved on the outside of the plurality of suction cups (7) and are fixedly connected to the upper end of the carrier (5).

3. The backlight module automatic assembly equipment according to claim 1, characterized in that: The bearing mechanism (4) further comprises a plurality of main racks (10), and the assembly mechanism (11) further comprises a main gear (14) and two sub-gears (15). The plurality of main racks (10) are arranged in an array at equal intervals along the upper ends of the four lower baffles (9). The main gears (14) are rotationally connected to a side of the sub-bracket (20) away from the main bracket (12) through a gear seat. The main gear (14) meshes with the main rack (10) after the sub-bracket (20) moves downward. The two sub-gears (15) are coaxially fixed to the two ends of the main gear (14) and are transmission-connected to the input end of the limit clamping mechanism (16).

4. The backlight module automatic assembly equipment according to claim 1, characterized in that: The position-limiting clamping mechanism (16) further comprises two first gears (17), two first bevel teeth (18) and two second bevel teeth (19); the two first gears (17) are respectively rotatably connected to two sides of the auxiliary bracket (20); the two first gears (17) are respectively input ends of two position-limiting clamping mechanisms (16); the two first bevel teeth (18) are respectively coaxially fixedly connected to the two first gears (17); the two second bevel teeth (19) are respectively meshed with the two first bevel teeth (18); and the two second bevel teeth (19) on the same side of the two auxiliary brackets (20) are coaxially fixedly connected.

5. The backlight module automatic assembly equipment according to claim 4, characterized in that: The position-limiting clamping mechanism (16) further comprises two first pulleys (28), two second pulleys (29), two second gears (30), two reversing gears (31), two decoupling gears (32) and two decoupling racks (33); the two first pulleys (28) are respectively fixedly connected to the two first bevel teeth (18) coaxially; the two second pulleys (29) are respectively arranged below the two first pulleys (28) and are rotatably connected to the auxiliary bracket (20); the two second gears (30) are respectively fixedly connected to the two second pulleys (29) coaxially; the two reversing gears (31) are respectively meshed with the two second gears (30); the two decoupling gears (32) are respectively fixedly connected to the two reversing gears (31) coaxially; and the two decoupling racks (33) are respectively fixedly connected to the two decoupling pressure plates (34) and meshed with the two decoupling gears (32).

6. The backlight module automatic assembly equipment according to claim 1, characterized in that: The limiting clamping mechanism (16) further comprises a limiting bracket (21), a clamping bracket (25), two clamping springs (24) and two limiting blocks (23); the two limiting brackets (21) are respectively fixedly connected to the lower end of the auxiliary bracket (20); one end of the two clamping springs (24) are respectively fixedly connected to the two limiting brackets (21) and the other end are respectively fixedly connected to the clamping brackets (25); the two limiting blocks (23) are respectively fixedly connected to the two ends of the clamping brackets (25); the clamping bracket (25) is rotatably connected to the clamping roller (27); and the two limiting blocks (23) are respectively slidably connected to the two ends of the auxiliary bracket (20).

7. The backlight module automatic assembly equipment according to claim 1, characterized in that: The position limiting clamping mechanism (16) further comprises an arc-shaped guide plate (26), which is arranged above the abutting roller (27) and is fixedly connected to the shaft seat of the main roller (13). When the abutting roller (27) moves upward, the arc-shaped guide plate (26) abuts against the abutting roller (27).

8. The backlight module automatic assembly equipment according to claim 3, characterized in that: The position limiting clamping mechanism (16) further comprises a lower pressing plate (43), two active racks (37), two intermediate rotating frames (38), two driven racks (40) and two driven gears (39); the lower pressing plate (43) is fixedly connected to a sub-bracket (20) close to the main rack (10); the two intermediate rotating frames (38) are respectively fixedly connected to the same side of the two sub-brackets (20); the two active racks (37) are respectively fixedly connected to the upper ends of the two intermediate rotating frames (38); the two driven gears (39) are respectively rotatably arranged on both sides of the two main brackets (12) through gear seats and mesh with the two active racks (37); the two driven racks (40) are respectively fixedly connected to the shaft seats of the two main rollers (13) and mesh with the two driven gears (39).

9. The backlight module automatic assembly equipment according to claim 1, characterized in that: The assembly mechanism (11) further comprises a tensioning roller (41) and a tensioning sleeve (42); the upper end of the tensioning roller (41) is fixedly connected to the main bracket (12), the lower end of the tensioning roller (41) is slidably connected to the tensioning sleeve (42) via a tension spring, and the lower end of the tensioning sleeve (42) is fixedly connected to the shaft seat of the main roller (13).

10. The backlight module automatic assembly equipment according to claim 1, characterized in that: The limiting clamping mechanism (16) further comprises a rubber roller (35), which is rotatably connected to the side of the two retreating pressure plates (34) close to each other, and the rubber roller (35) abuts against the frame (3) when the two retreating pressure plates (34) move upward.

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