An automatic assembling device for a backlight module

Abstract

The present invention relates to a field, and specifically to an automatic assembly device for a backlight module. The device comprises a working line and a three-axis moving mechanism arranged beside the working line, and further comprises: a plurality of bearing mechanisms arranged in an array at equal intervals along a conveyor belt of the working line, comprising a carrier, the carrier being fixedly connected to the upper end of the conveyor belt of the working line, a plurality of assembly mechanisms respectively comprising a main bracket, a main roller and two limit clamping mechanisms, the main bracket being fixedly connected to the output end of the three-axis moving mechanism, the main roller being rotatably arranged at the lower end of the main bracket through an axle seat, the two limit clamping mechanisms being arranged on both sides of the main bracket, the limit clamping mechanism comprising a sub-bracket, a clamping roller, two retreating pressure plates and two laser plane interferometers, the sub-bracket being slidably connected to the main bracket, the clamping roller being arranged on the side of the lower end of the sub-bracket close to the main roller, the two retreating pressure plates being slidably arranged below the sub-bracket, and the two laser plane interferometers being respectively fixedly connected to the lower ends of the two retreating pressure plates.

Description

Technical Field

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

[0002] During backlight unit assembly, due to the backlight unit's flexibility, the protective frame can only be manually assembled onto the edge of the backlight unit where the PCB is located. This results in low assembly efficiency and high labor costs. Traditional installation mechanisms often apply pressure in a limited manner, making it difficult to precisely control the magnitude and distribution of pressure based on the uneven surface of the backlight unit and the distribution of point light sources. This can result in excessive pressure in some areas of the protective frame during installation, causing deformation of the backlight unit, damage to point light sources, or excessive squeezing of the film material, while insufficient pressure in other areas can lead to a loose installation of the frame.

[0003] Furthermore, existing carriers, which need to be transferred between different workstations, struggle to adapt to the changing shapes of flexible backlight modules because conventional jigs are typically designed with fixed shapes and sizes. During movement, sufficient and uniform clamping force may not be provided to the backlight module, causing it to wobble or become loose within the jig, increasing the likelihood of collision and damage. These minute positioning errors from each movement accumulate, further increasing the risk of misalignment during final installation of the protective frame.

[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 assembly device for a backlight module 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 carriers, which are fixedly connected to the upper end of the working line conveyor belt;

[0009] Several 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 the shaft 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 the 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, and the two laser plane interferometers are respectively fixed to the lower ends of the two retreat pressure plates.

[0010] Furthermore, the supporting mechanism also includes a number of airbags, a number of suction cups and four lower baffles. The airbags are arranged in an array at equal intervals along the four sides of the upper end of the carrier, and the suction cups are arranged on the sides of the airbags. The suction cups and the 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 fixedly connected to the two opposite sides of the upper end of the carrier, and the corrugated covers are respectively mounted on the outside of the suction cups and fixedly connected to the upper end of the carrier.

[0011] Furthermore, the supporting mechanism also includes a number of main racks, and the assembly mechanism also includes a main gear and two sub-gears. The number 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 engages 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 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 the input ends of the two 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 is 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 bracket, 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 pressing roller and fixedly connected to the shaft seat of the main roller. When the pressing roller moves upward, the arc-shaped guide plate presses against the pressing roller.

[0016] Furthermore, the limiting clamping mechanism also includes a lower pressure plate, two active racks, two intermediate transfer 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 transfer 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 transfer frames, the two driven gears are respectively rotatably arranged on both sides of the two main brackets through the 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, and the lower end is slidingly connected to the tensioning sleeve through a tension spring. 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 the 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 airbags and suction cups to carry the module. Compared to traditional carriers, the suction cups and airbags work together to greatly improve the stability of the backlight module on the carrier. The suction cups' adsorption force fixes the module vertically to prevent it from falling, while the propulsion of the airbags balances the module horizontally to prevent it from moving left and right or forward and backward. This dual fixation method allows the backlight module to resist interference forces from various directions during assembly, such as vibration of the installation mechanism and slight touch by the operator, ensuring smooth assembly.

[0021] Secondly, this device uses a laser plane interferometer to detect the flatness of the upper end of the module body, so that the frame and module body will not be affected by unevenness during assembly. Compared with traditional manual installation, this device can achieve automated 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 It is a schematic diagram of the three-dimensional structure of the embodiment;

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

[0025] Figure 3 3D schematic diagram of the assembly mechanism and the supporting mechanism in the embodiment;

[0026] Figure 4 3D schematic diagram of the exploded structure 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 A;

[0028] Figure 6 3D is a schematic diagram of the assembling mechanism in the embodiment;

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

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

[0031] Figure 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. Clamping 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 achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[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, including carriers 5, which are fixedly connected to the upper end of the conveyor belt of the working line 1;

[0037] Several assembly mechanisms 11 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 44 (such as 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 the shaft 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 retreat 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 the side of the lower end of the sub-bracket 20 close to the main roller 13 (as shown). Figure 9 As shown in FIG, two retreat pressure plates 34 are slidably arranged 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 .

[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 will be 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 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 FIG. Figure 4 and Figure 5 ), a plurality of suction cups 7 are respectively arranged on the sides of a 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, and each group of lower baffles 9 is respectively fixed 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 the plurality of suction cups 7 and fixed to the upper end of the carrier 5. When the module body 2 is placed on top of the carrier 5, the plurality of suction cups 7 are activated to attract the module body 2 in the direction of approaching the carrier 5, while the plurality of air bags 6 push the module body 2 in the direction of moving away from the carrier 5. During this process, the suction cups 7 can be adsorbed on the flat part of the module body 2, while 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 support force according to the flexible deformation of the module, and the suction cups 7 can adapt to the flexibility change by balancing the force with the air bags 6 while ensuring adsorption.

[0042] The supporting 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. A main gear 14 is rotationally connected to the side of the auxiliary bracket 20 away from the main bracket 12 via a gear holder. After the auxiliary bracket 20 moves downward, the main gear 14 meshes with the main rack 10. Two auxiliary gears 15 are coaxially fixedly connected to the ends of the main gear 14 and are transmission-connected to the input end of the limit clamping mechanism 16. When the three-axis movement mechanism 44 drives the main bracket 12 downward until the main rack 10 meshes with the main gear 14, the main gear 14 drives 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 provided:

[0044] The 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 (refer to FIG. Figure 7 ), the two first gears 17 are respectively the input ends of the two limit clamping mechanisms 16, the two first bevel teeth 18 are respectively coaxially fixed 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 fixed. When the auxiliary gear 15 rotates, it can be seen 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. In this process, reference Figure 7 It can be seen that the two first bevel teeth 18 located on the same side of the main bracket 12 rotate in opposite directions.

[0045] In order to enable the retreat 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 provided:

[0046] The limiting clamping mechanism 16 further includes two first pulleys 28, two second pulleys 29, two second gears 30, two reversing gears 31, two deflection gears 32 and two deflection racks 33. The two first pulleys 28 are respectively coaxially connected 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 decoupling gears 32 are respectively coaxially fixedly connected to the two reversing gears 31, 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. 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. After the two second pulleys 29 rotate, they will drive the two reversing gears 31 to rotate through the two second gears 30. The two reversing gears 31 will drive the two decoupling racks 33 to move through the two decoupling gears 32. After the two decoupling racks 33 move, they will drive the two decoupling pressure plates 34 to move.

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

[0048] The limiting clamping mechanism 16 further 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 fixed to the lower ends of the auxiliary bracket 20 (refer to Figure 9 ), one end of the two holding springs 24 is respectively fixedly connected to the two limiting brackets 21, and the other end is respectively fixedly connected to the holding bracket 25. The two limiting blocks 23 are respectively fixedly connected to the two ends of the holding bracket 25. The holding bracket 25 is rotatably connected to the holding roller 27, and the two limiting 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 holding brackets 25 will push the holding roller 27 under the action of the two holding springs 24 to clamp the outer edge of the frame 3, ensuring that the frame 3 can be clamped by the two oppositely arranged holding rollers 27 and can be moved 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 limiting clamping mechanism 16 further includes an arc-shaped guide plate 26, which is disposed above the pressing roller 27 and is fixedly connected to the shaft seat of the main roller 13 (refer to FIG. 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. At this time, the arc guide plate 26 will limit the pressing roller 27 to ensure that the pressing roller 27 does not remain clamped with the frame 3.

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

[0052] The position limiting clamping mechanism 16 further includes a lower pressing plate 43, two active racks 37, two intermediate 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 are in contact with each other, the main rack 10 will be in contact with the lower pressure plate 43. 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 pressing rollers 27.

[0053] In order to facilitate the reset movement of the main roller 13, the following features are also 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 via a tension spring. 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 and the tension sleeve 42 are relatively displaced via the tension spring, thereby ensuring that when the three-axis movement mechanism 44 subsequently drives the frame 3 and the module body 2 to separate, the main roller 13 returns to its initial position.

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

[0056] The limiting clamping mechanism 16 further includes a rubber roller 35, which is rotatably connected to the side of the two retreating pressure plates 34 (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 their limit positions, the sub-bracket 20 drives the retreating pressure plates 34 upward, so 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, several suction cups 7 are activated to attract the module body 2 in the direction closer to the carrier 5, and several 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 part 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 changes 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 be affected by unevenness or offset and affect the installation with the frame 3.

[0059] It should be noted that the laser plane interferometer 36 is an existing electronic component, which is based on the principle of interference 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 be evenly distributed; if there are flatness problems on the surface, such as bumps or depressions, the interference fringes will be distorted or deformed. 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 engage, 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 come into contact with 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 sub-supports 20 will move upward under the action of the intermediate rotating frame 38, and the two active racks 37 will move upward with the movement of the intermediate rotating frame 38 and drive the two driven gears 39 engaged therewith to rotate during the movement. After the two driven gears 39 rotate, they will drive the main roller 13 downward through the two driven racks 40. At this time, the frame 3, which is pressed against 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 merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A backlight module automatic 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 carriers (5), wherein the carriers (5) are 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 the four sides of the lower end of the output end of the three-axis moving mechanism (44). 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 clamping mechanism (16) includes a sub-bracket (20), a pressing roller (27), two retreating pressure plates (34) and two laser plane interferometers (36), wherein the sub-bracket (20) is slidably connected to the main bracket (12), the pressing 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 fixed to the lower ends of the two retreating pressure plates (34); The supporting mechanism (4) further comprises a plurality of air bags (6), a plurality of suction cups (7) and four lower baffles (9), wherein the plurality of air bags (6) are respectively arranged in an array at equal intervals along the four sides of the upper end of the carrier (5), and the plurality of suction cups (7) are respectively 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 their shapes, and each group of lower baffles (9) is respectively fixedly connected to the two opposite sides of the upper end of the carrier (5), and the plurality of corrugated covers (8) are respectively sleeved on the outside of the plurality of suction cups (7) and fixedly connected to the upper end of the carrier (5).

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

3. The backlight module automatic assembly equipment according to claim 1, characterized in that: 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 respectively rotatably connected to the two sides of the auxiliary bracket (20). The two first gears (17) are respectively input ends of the 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). The two second bevel teeth (19) on the same side of the two auxiliary brackets (20) are coaxially fixedly connected.

4. The backlight module automatic assembly equipment according to claim 3, characterized in that: The limiting clamping mechanism (16) further includes 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), wherein 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).

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

6. The backlight module automatic assembly equipment according to claim 1, characterized in that: The position limiting clamping mechanism (16) further includes an arc-shaped guide plate (26), which is arranged above the abutting roller (27) and 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).

7. The backlight module automatic assembly equipment according to claim 2, characterized in that: The limiting clamping mechanism (16) further includes a lower pressure plate (43), two active racks (37), two intermediate transfer frames (38), two driven racks (40) and two driven gears (39), wherein the lower pressure plate (43) is fixedly connected to the auxiliary bracket (20) close to the main rack (10), the two intermediate transfer frames (38) are respectively fixedly connected to the same side of the two auxiliary brackets (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 brackets (12) through the tooth 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).

8. The backlight module automatic assembly equipment according to claim 1, characterized in that: The assembly mechanism (11) further includes a tensioning roller (41) and a tensioning sleeve (42), wherein the upper end of the tensioning roller (41) is fixedly connected to the main bracket (12), and the lower end 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).

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

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