A mechanical arm for backlight module film pasting

Abstract

The present application provides a mechanical arm for backlight module film pasting, which relates to the field of mechanical arms, including a platform, a workbench is arranged above the platform, a conveying platform is arranged beside the platform, and a backlight module locking frame is arranged on the workbench, a conveying rail is arranged above the conveying platform, a film frame is movably connected to the conveying rail, a center frame is arranged between the workbench and the conveying platform, a slide is provided on the center frame, a lifting platform is movably connected inside the slide, and a rotary table is arranged below the lifting platform. The present application can perform a flatness detection on the backlight module and the outer side of the film after film pasting, and effectively detect the uneven film pasting caused by mechanical vibration or environmental factors. At the same time, the clamping and loosening of the film by the self-test component are driven by the protective clamping module, which can avoid the damage of the film due to excessive clamping force during the clamping process of the film, and ensure the overall quality of the backlight module after film pasting.

Description

Technical Field

[0001] The present invention relates to the field of mechanical arms, and in particular to a mechanical arm for laminating a backlight module. Background Art

[0002] The backlight module is one of the key components of the LCD panel. Its function is to provide sufficient brightness and evenly distributed light source so that it can display images normally. In order to improve the use effect of the backlight module, it needs to be protected by a film, so as to achieve the purpose of providing light source, uniform light source, improving brightness, saving energy and protecting the liquid crystal layer.

[0003] In order to meet the needs of batch laminating operations for backlight module processing, backlight laminating machines are mostly used for processing, and the laminating operations are assisted by robotic arms. The current robotic arms only have simple clamping and carrying functions, and are unable to provide timely feedback on the flatness of the backlight module after laminating, resulting in repeated erroneous laminating operations caused by the failure of a single laminating operation.

[0004] Therefore, we make improvements to this and propose a robotic arm for backlight module film pasting. Summary of the invention

[0005] The purpose of the present invention is to address the problem that the existing robot arm only has a simple clamping and carrying function and cannot provide timely feedback on the flatness of the backlight module after film pasting, thereby causing repeated erroneous film pasting operations due to unqualified single film pasting operations.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a mechanical arm for laminating a backlight module to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] It comprises a platform, a workbench is arranged above the platform, a conveying platform is arranged beside the platform, a backlight module locking frame is arranged on the workbench, a conveying rail is arranged above the conveying platform, a film frame is movably connected to the conveying rail, a middle frame is arranged between the workbench and the conveying platform, a slide groove is opened on the middle frame, a lifting platform is movably connected inside the slide groove, and a rotating platform is arranged below the lifting platform, two crossed mechanical arm rods are arranged inside the rotating platform, the two mechanical arm rods are movably connected, self-checking clamping components are arranged at both ends of the two mechanical arm rods, and a protective driving clamping module is arranged inside the rotating platform;

[0009] The self-test clamping assembly comprises a clamping plate and a self-test seat, and one side of the clamping plate is fixedly connected to two contact pieces, and a pressure sensor is arranged on the self-test seat;

[0010] The protective driving and clamping module includes two built-in platforms and a limit ring, the limit ring is fixedly connected to the two built-in platforms, annular holes are opened on the two mechanical arm rods, the limit ring is movably connected in the annular holes of the two mechanical arm rods, and the outside of the limit ring is movably connected to two reset springs, and corrugated airbag tubes are arranged at both ends of the two built-in platforms.

[0011] As a preferred technical solution of the present application, the self-inspection clamping assembly also includes a self-inspection rod, a short shaft is fixedly connected to the bottom of the self-inspection seat, one end of the self-inspection rod is located outside the short shaft and is movably connected, the other end of the self-inspection rod is movably connected to a detection wheel, an installation groove is provided at the bottom of the self-inspection seat, the pressure sensor is located inside the installation groove and is fixedly connected, a self-inspection spring is fixedly connected between the self-inspection rod and the pressure sensor, and a slide groove is provided on the clamping plate, a slide seat is provided on the self-inspection seat, the self-inspection seat is movably connected in the slide groove of the clamping plate, a threaded hole is provided on the slide seat of the self-inspection seat, one end of the clamping plate is fixedly connected to a reversing motor, the output end of the reversing motor is connected to a lead screw through a coupling, the other end of the lead screw passes through the threaded hole of the slide seat on the self-inspection seat and is movably connected to the inner wall of the slide groove of the clamping plate, and the self-inspection seat and the lead screw are rotationally connected through the inner wall thread.

[0012] As a preferred technical solution of the present application, a suspension frame is fixedly connected to the clamping plate, a short shaft is fixedly connected to the upper side of the suspension frame, circular holes are opened at both ends of the mechanical arm rod, the short shaft of the suspension frame is movably connected inside the circular holes of the mechanical arm rod, a pulling gear is fixedly connected to the upper end of the short shaft, and an upper plate is fixedly connected to the upper side of both ends of the mechanical arm rod, an adjusting motor is fixedly connected to the upper side of the upper plate, the output end of the adjusting motor is connected to a rotating shaft through a coupling, the other end of the rotating shaft passes through the upper plate and is fixedly connected to a driving gear, and the driving gear and the pulling gear are meshed through teeth.

[0013] As a preferred technical solution of the present application, the protective driving and clamping module also includes two connecting platforms, which are symmetrically distributed inside the rotating platform. The two connecting platforms are fixedly connected to the sides away from each other with air cylinders, which are located between the connecting platform and the built-in platform, and the middle part of the corrugated airbag tube is set as an annular perforation, and the limiting ring is located inside the annular perforation. The two ends of the corrugated airbag tube are respectively fixedly connected to the outer walls of the built-in platform and the adjacent mechanical arm rod, and the end of the corrugated airbag tube close to the built-in platform is fixedly connected to an air joint seat, and an air supply pipe is fixedly connected between the air joint seat and the air cylinder.

[0014] As a preferred technical solution of the present application, two circular holes are opened at the bottom of the rotating table, and short tubes are fixedly connected to the lower sides of the two air cylinders. The other ends of the short tubes pass through the circular holes of the rotating table and are fixedly connected to micro air pumps. The micro air pump is fixedly connected to the lower side of the rotating table, and two reset springs are symmetrically distributed. The two reset springs are located between the two mechanical arm rods, and the two ends of the two reset springs are fixedly connected to the outer walls of the two mechanical arm rods.

[0015] As a preferred technical solution of the present application, a feeding motor is fixedly connected to the upper side of the lifting platform, and the feeding motor is located directly above the rotary table. A circular hole is provided on the lifting platform, and the output end of the feeding motor is connected to a short shaft through a coupling. The other end of the short shaft passes through the lifting platform and is fixedly connected between the circular hole and the rotary table, and a weighted seat is fixedly connected to the side of the lifting platform away from the feeding motor.

[0016] As a preferred technical solution of the present application, a base plate is provided under the lifting platform, the base plate and the lifting platform are fixedly connected, the lower end of the center frame is fixedly connected to the shift frame, and the upper side of the shift frame is fixedly connected to a lifting hydraulic cylinder, and the telescopic end of the lifting hydraulic cylinder is fixedly connected upward to the lower side of the base plate.

[0017] As a preferred technical solution of the present application, four symmetrical supports are fixedly connected to the upper side of the platform, the workbench is located above the four supports, the upper ends of the four supports are fixedly connected to the lower side of the workbench, and an attached plate is fixedly connected to the side of the platform close to the conveyor platform.

[0018] As a preferred technical solution of the present application, a sliding groove is provided on the upper side of the attached plate, a sliding seat is arranged under the shift frame, the shift frame and the attached plate are movably connected, and a partition is fixedly connected to the upper side of the attached plate, the partition is located between the two support frames, a circular hole is provided on the partition, an electric push rod is fixedly connected to the upper side of the platform, and the telescopic end of the electric push rod passes through the circular hole of the partition and is fixedly connected to the shift frame.

[0019] As a preferred technical solution of the present application, a side rack is fixedly connected to the middle rack on one side close to the rotating table, the side rack is L-shaped, and an electric heating plate is fixedly connected to the upper side of the side rack, and the heating surface of the electric heating plate is located on the upper side.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the scheme of this application:

[0022] 1. In order to solve the problem in the prior art that the flatness of the backlight module cannot be detected in time after the film is applied, the present application sets a self-checking clamping component to directly detect whether the diaphragm and the backlight module are aligned through the force signal of the pressure sensor, effectively detect the uneven film application caused by mechanical vibration or environmental factors, avoid the failure of a single film application operation to be inspected in time, resulting in repeated wrong film application and waste of the film. At the same time, in the initial stage of self-checking, when the self-checking seat moves toward one end of the clamping plate, it can make a micro-adjustment to the film after application, further improving the alignment of the diaphragm and the backlight module;

[0023] 2. In order to solve the problem in the prior art that the clamping force of the diaphragm is difficult to accurately control, which easily causes the clamping to be damaged, the present application sets a protective driving and clamping module to achieve the angle adjustment of the two mechanical arm rods by using an airbag and a spring. Since the spring has elastic force, the airbag is deformed by the expansion and compression of the air. In the process of driving the two mechanical arm rods, it can achieve the rotation and clamping of the mechanical arm rods while having a good buffering effect, avoiding the problem of directly adjusting the two mechanical arm rods, which is difficult to accurately control the force, and causing the diaphragm to be damaged due to excessive force;

[0024] 3. Through the setting of the clamping plate, the suspension frame and the adjustment motor, the angle between the clamping plate and the mechanical arm can be adjusted according to the actual working conditions to ensure that the clamping plate and the side wall of the diaphragm are in a parallel state, so that the contact effect between the two contact pieces on the same side and the diaphragm is the same, thereby improving the stability of the self-checking clamping assembly for clamping and fixing the diaphragm. At the same time, this setting can enable the device to adapt to the clamping and fixing of diaphragms of different specifications, improve the adaptability of the device, and solve the problem that the application scope of the device in the prior art is limited and cannot cope with the film-sticking operation of diaphragms of different specifications;

[0025] 4. By setting up the side rack and the electric heating plate, it is realized that when the film is transferred from the conveyor table to the workbench, the clamped and transported film will pass over the side rack, and the electric heating plate will simply preheat the lower side of the film, thereby improving the film lamination effect of the film and the backlight module, solving the problem of the inability to preheat the film before lamination and the poor film lamination effect in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the overall structure of a mechanical arm for laminating a backlight module provided in this application;

[0027] Figure 2 A schematic diagram of a top view of a mechanical arm for laminating a backlight module provided in the present application;

[0028] Figure 3 A schematic diagram of the structure of a platform and a workbench of a mechanical arm for laminating a backlight module provided in the present application;

[0029] Figure 4 A schematic diagram of the structure of a conveying platform of a mechanical arm for laminating a backlight module provided in this application;

[0030] Figure 5 A schematic diagram of the structure of a platform and a center frame of a mechanical arm for laminating a backlight module provided in the present application;

[0031] Figure 6 A schematic diagram of the structure of a suspension platform and a mechanical arm rod of a mechanical arm for laminating a backlight module provided in the present application;

[0032] Figure 7A schematic diagram of the structure of a protective driving and clamping module of a mechanical arm for laminating a backlight module provided in this application;

[0033] Figure 8 A schematic diagram of the structure of a self-checking clamping assembly of a mechanical arm for laminating a backlight module provided in the present application;

[0034] Fig. 9 A schematic diagram of the structure of a self-inspection seat of a mechanical arm for laminating a backlight module provided in this application;

[0035] Fig.10 A schematic diagram of the center frame structure of a robotic arm for backlight module film lamination provided in this application.

[0036] Indicated in the figure:

[0037] 1. Platform; 2. Workbench; 3. Conveyor platform; 4. Backlight module locking frame; 5. Conveyor rail; 6. Diaphragm frame; 7. Middle frame; 8. Lifting platform; 9. Rotating platform; 10. Mechanical arm; 11. Self-checking clamping assembly; 1101. Clamping plate; 1102. Contact piece; 1103. Self-checking seat; 1104. Pressure sensor; 1105. Self-checking rod; 1106. Detection wheel; 1107. Self-checking spring; 1108. Reversing motor; 1109. Screw rod; 1110. Suspension frame; 1111. Driving gear; 1112. Upper plate; 111 3. Adjusting motor; 1114. Driving gear; 12. Protective drive clamp module; 1201. Built-in table; 1202. Limiting ring; 1203. Return spring; 1204. Corrugated airbag tube; 1205. Connecting table; 1206. Air cylinder; 1207. Micro air pump; 1208. Air joint seat; 1209. Air pipe; 13. Feeding motor; 14. Bottom plate; 15. Weighted seat; 16. Shifting rack; 17. Lifting hydraulic cylinder; 18. Support frame; 19. Attached plate; 20. Partition; 21. Electric push rod; 22. Side rack; 23. Electric heating plate. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] As described in the background art, the robot arm cannot provide timely feedback on the flatness of the backlight module after film pasting, thereby causing repeated erroneous film pasting operations due to the failure of a single film pasting operation.

[0040] In order to solve this technical problem, the present invention provides a mechanical arm for backlight module film pasting, which is applied to the backlight module film pasting operation.

[0041] Specifically, please refer to Figure 1-Figure 10 The backlight module film pasting mechanical arm specifically comprises:

[0042] A platform 1, a workbench 2 is arranged above the platform 1, a conveying platform 3 is arranged beside the platform 1, and a backlight module locking frame 4 is arranged on the workbench 2, a conveying rail 5 is arranged above the conveying platform 3, a film frame 6 is slidably connected to the conveying rail 5, a middle frame 7 is arranged between the workbench 2 and the conveying platform 3, a slide groove is opened on the middle frame 7, a lifting platform 8 is slidably connected inside the slide groove, and a rotating platform 9 is arranged below the lifting platform 8, two crossed mechanical arm rods 10 are arranged inside the rotating platform 9, the two mechanical arm rods 10 are rotatably connected through bearings, both ends of the two mechanical arm rods 10 are provided with self-checking clamping components 11, and a protective driving clamping module 12 is arranged inside the rotating platform 9;

[0043] The self-checking clamping assembly 11 includes a clamping plate 1101 and a self-checking seat 1103, and one side of the clamping plate 1101 is connected with two contact pieces 1102 by bolts, and a pressure sensor 1104 is arranged on the self-checking seat 1103;

[0044] The protective drive clamping module 12 includes two built-in platforms 1201 and a limiting ring 1202. The limiting ring 1202 is connected to the two built-in platforms 1201 by bolts. An annular hole is opened on the two mechanical arm rods 10. The limiting ring 1202 is slidably connected in the annular holes of the two mechanical arm rods 10, and two return springs 1203 are sleeved on the outside of the limiting ring 1202. Corrugated airbag tubes 1204 are arranged at both ends of the two built-in platforms 1201.

[0045] The present invention provides a mechanical arm for backlight module film pasting, which adopts a self-checking clamping component 11 to clamp, paste the film and perform self-checking operations on the film. The clamping operation is to press and fix the film from both sides to avoid direct contact with the surface of the film to cause surface contamination, thereby improving the surface cleanliness after film pasting. The self-checking operation can perform flatness detection on the backlight module and the outer side of the film after film pasting, and effectively detect the uneven film pasting caused by mechanical vibration or environmental factors. At the same time, the clamping and release of the film by the self-checking component are driven by the protective driving clamping module 12, which can avoid damage to the film due to excessive clamping force during the clamping process of the film, thereby ensuring the overall quality of the backlight module after film pasting.

[0046] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0047] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0049] Example 1, please refer to Figure 6 , Figure 8 and Fig. 9 A mechanical arm for laminating a backlight module, wherein the self-checking clamping assembly 11 also includes a self-checking rod 1105, a short shaft is connected to the bottom of the self-checking seat 1103 by bolts, one end of the self-checking rod 1105 is located outside the short shaft and is rotatably connected by a bearing, and the other end of the self-checking rod 1105 is rotatably connected to a detection wheel 1106 by a bearing, a mounting groove is provided below the self-checking seat 1103, a pressure sensor 1104 is located inside the mounting groove and is connected by bolts, a self-checking spring 1107 is connected between the self-checking rod 1105 and the pressure sensor 1104 by bolts, and the clamping plate 1101 A slide groove is provided on the self-inspection seat 1103, and a slide seat is arranged on the self-inspection seat 1103. The self-inspection seat 1103 is slidably connected in the slide groove of the clamping plate 1101. A threaded hole is provided on the slide seat of the self-inspection seat 1103. One end of the clamping plate 1101 is connected to a reversing motor 1108 by a bolt, and the output end of the reversing motor 1108 is connected to a screw rod 1109 by a coupling. The other end of the screw rod 1109 passes through the threaded hole of the slide seat on the self-inspection seat 1103 and is rotatably connected to the inner wall of the slide groove of the clamping plate 1101 through a bearing. The self-inspection seat 1103 and the screw rod 1109 are rotatably connected through the inner wall thread.

[0050] Self-inspection process: (the reversing motor 1108 at the front end of the two mechanical arm rods 10 on the same side is a synchronous motor) the reversing motor 1108 rotates to drive the screw rod 1109 to rotate, and the self-inspection seat 1103 moves on the clamping plate 1101. In this process, the self-inspection wheel first approaches the backlight module after the film is applied, and finally the self-inspection wheel contacts the backlight module after the film is applied. The self-inspection rod 1105 is deflected toward the self-inspection seat 1103 by force, and the self-inspection spring 1107 is compressed by force. The pressure sensor 1104 transmits a force signal, and the self-inspection seat 1103 moves to the other end of the clamping plate 1101 and then resets. The output signal of the pressure sensor 1104 is always transmitted to the terminal. The change value of the pressure signal can be used to directly determine whether the diaphragm and the backlight module are neatly fitted (the self-inspection seat 1103 is reset from the other end of the clamping plate 1101 to the initial position. If the pressure signal remains constant, it means that the fit is neat).

[0051] The self-inspection clamping assembly performs a self-inspection after the film is applied, and directly detects whether the diaphragm and the backlight module are aligned through the force signal of the pressure sensor 1104, which can effectively detect uneven film application caused by mechanical vibration or environmental factors, and avoid repeated incorrect film application due to failure of a single film application operation and failure to inspect it in time, resulting in waste of the film. At the same time, in the initial stage of self-inspection, when the self-inspection seat 1103 moves toward one end of the clamping plate 1101, it can make slight adjustments to the laminated diaphragm to further improve the alignment of the diaphragm and the backlight module.

[0052] Please refer to Figure 8 and Fig. 9 A mechanical arm for backlight module film pasting, a clamping plate 1101 of which is connected to a suspension frame 1110 by bolts, the upper side of the suspension frame 1110 is connected to a short shaft by bolts, both ends of the mechanical arm rod 10 are opened with round holes, the short shaft of the suspension frame 1110 is located inside the round hole of the mechanical arm rod 10 and is rotatably connected by bearings, the upper end of the short shaft is connected to a pulling gear 1111 by bolts, and the upper sides of both ends of the mechanical arm rod 10 are connected to an upper plate 1112 by bolts, the upper side of the upper plate 1112 is connected to an adjusting motor 1113 by bolts, the output end of the adjusting motor 1113 is connected to a rotating shaft through a coupling, the other end of the rotating shaft passes through the upper plate 1112 and is connected to a driving gear 1114 by bolts, and the driving gear 1114 is meshed with the pulling gear 1111 by teeth and grooves.

[0053] Before the backlight modules of the same batch are pasted with film, the device is adaptively adjusted: the two mechanical arms 10 are driven to make the self-checking clamping assembly 11 clamp the diaphragm from both sides, the adjusting motor 1113 is started according to the specifications of the diaphragm, the adjusting motor 1113 drives the active gear 1114 to engage the driving gear, and the suspension frame 1110 drives the clamping plate 1101 to rotate until the clamping plate 1101 is parallel to the outer side of the diaphragm, and the two contact pieces 1102 on the same side have the same contact effect with the diaphragm.

[0054] The angle between the clamping plate 1101 and the robotic arm 10 can be adjusted according to the actual working conditions to ensure that the clamping plate 1101 is in parallel with the side wall of the diaphragm, so that the two contact plates 1102 on the same side have the same contact effect with the diaphragm, thereby improving the stability of the self-checking clamping assembly 11 in clamping and fixing the diaphragm. At the same time, this setting can enable the device to adapt to the clamping and fixing of diaphragms of different specifications, thereby improving the adaptability of the device.

[0055] Embodiment 2 further optimizes the backlight module film pasting robot arm provided in embodiment 1. Specifically, Figure 7As shown, the protective drive clamping module 12 also includes two connecting platforms 1205, and the two connecting platforms 1205 are symmetrically distributed inside the rotating platform 9. The two connecting platforms 1205 are connected to the air cylinder 1206 on the sides away from each other by bolts. The air cylinder 1206 is located between the connecting platform 1205 and the built-in platform 1201, and the middle part of the corrugated airbag tube 1204 is set as an annular perforation, and the limiting ring 1202 is located inside the annular perforation. The two ends of the corrugated airbag tube 1204 are respectively connected to the outer wall of the built-in platform 1201 and the adjacent mechanical arm rod 10 by bolts, and the end of the corrugated airbag tube 1204 close to the built-in platform 1201 is connected to the air joint seat 1208 by bolts, and the air supply pipe 1209 is connected between the air joint seat 1208 and the air cylinder 1206 by bolts.

[0056] Furthermore, two circular holes are opened under the rotary table 9, and the lower sides of the two air cylinders 1206 are connected with short tubes by bolts. The other ends of the short tubes pass through the circular holes of the rotary table 9 and are connected with micro air pumps 1207 by bolts. The micro air pump 1207 is connected to the lower side of the rotary table 9 by bolts, and the two reset springs 1203 are symmetrically distributed. The two reset springs 1203 are located between the two mechanical arm rods 10, and the two ends of the two reset springs 1203 are respectively connected to the outer walls of the two mechanical arm rods 10 by bolts.

[0057] Driving process of the protective drive clamping module 12: Under the elastic force of the reset spring 1203, the two mechanical arm rods 10 remain away from each other. When clamping is required, the micro air pump 1207 works to fill the external air into the air cylinder 1206. The gas in the air cylinder 1206 is pressurized and pressed into the corrugated airbag tube 1204 from the air supply pipe 1209. The corrugated airbag tube 1204 expands after inflation. Since one end of the corrugated airbag tube 1204 is limited by the built-in platform 1201, the corrugated airbag tube 1204 can only expand and stretch to the other end to push the mechanical arm rod 10. The mechanical arm rod 10 deflects to the side away from the built-in platform 1201, the angle between the two mechanical arm rods 10 decreases, and the reset spring 1203 is compressed and elastically deformed.

[0058] The protective drive and clamping module 12 uses an airbag and a spring to adjust the angle of the two mechanical arm rods 10. Since the spring has elastic force, the airbag is expanded and squeezed and deformed by the air. During the driving process of the two mechanical arm rods 10, it can achieve the rotation and clamping of the mechanical arm rods 10 while having a good buffering effect, avoiding the difficulty in accurately controlling the force when directly adjusting the two mechanical arm rods 10, causing the diaphragm to be damaged due to excessive force.

[0059] Embodiment 3 further optimizes a backlight module film pasting robot arm provided in Embodiment 1 or 2. Specifically, Figure 5 and Fig.10As shown, a feeding motor 13 is connected to the upper side of the lifting platform 8 by bolts, and the feeding motor 13 is located directly above the rotary table 9. A circular hole is provided on the lifting platform 8, and the output end of the feeding motor 13 is connected to a short shaft through a coupling, and the other end of the short shaft passes through the lifting platform 8 and is connected to the circular hole and the rotary table 9 by bolts, and a weighted seat 15 is connected to the side of the lifting platform 8 away from the feeding motor 13 by bolts.

[0060] When the rotary table 9 needs to rotate, the feeding motor 13 is started to drive the rotary table 9 to rotate; the weighted seat 15 is located on the side of the lifting platform 8 away from the feeding motor 13, which can balance the force state of the lifting platform 8 and avoid uneven force causing poor stability during operation.

[0061] Further, such as Fig.10 As shown, a base plate 14 is provided below the lifting platform 8, the base plate 14 and the lifting platform 8 are connected by bolts, the lower end of the center frame 7 is connected to the shift frame 16 by bolts, and the upper side of the shift frame 16 is connected to a lifting hydraulic cylinder 17 by bolts, and the telescopic end of the lifting hydraulic cylinder 17 is connected to the lower side of the base plate 14 by bolts upward.

[0062] When the mechanical arm 10 is raised or lowered, the lifting hydraulic cylinder 17 extends or contracts to drive the lifting platform 8 to move vertically on the middle frame 7.

[0063] Further, such as Figure 3 and Figure 5 As shown, four symmetrical supports 18 are connected to the upper side of the platform 1 by bolts, the workbench 2 is located above the four supports 18, the upper ends of the four supports 18 are connected to the lower side of the workbench 2 by bolts, and an attachment plate 19 is connected to the side of the platform 1 close to the conveyor platform 3 by bolts.

[0064] Further, such as Figure 3 and Figure 5 As shown, a slide groove is provided on the upper side of the attached plate 19, a slide seat is provided under the shift frame 16, the shift frame 16 and the attached plate 19 are slidably connected, and a partition 20 is connected to the upper side of the attached plate 19 by bolts, the partition 20 is located between the two support frames 18, a circular hole is provided on the partition 20, and an electric push rod 21 is connected to the upper side of the platform 1 by bolts, and the telescopic end of the electric push rod 21 passes through the circular hole of the partition 20 and is connected to the shift frame 16 by bolts.

[0065] Device adaptive adjustment process: When the size of the diaphragm changes, the angle between the two mechanical arms 10 will change, resulting in the diaphragm clamped by the two self-checking clamping assemblies 11 on the same side being unable to be directly above the backlight module of the workbench 2. At this time, the electric push rod 21 can be started to drive the shift frame 16 to move closer to or away from the workbench 2 to ensure that the clamped diaphragm is aligned with the backlight module on the workbench 2 (the position of the conveyor table 3 can be adjusted, and the adjustment direction is to move closer to or away from the workbench 2).

[0066] The positions of the center frame 7 and the conveying platform 3 can be adjusted according to actual conditions to meet the film laminating requirements of films of different specifications.

[0067] Embodiment 4: A backlight module film pasting robot arm provided in the above embodiments is further optimized, such as Figure 5 and Fig.10 As shown, a side frame 22 is connected to the central frame 7 on one side close to the rotary table 9 by bolts, the side frame 22 is L-shaped, and an electric heating plate 23 is connected to the upper side of the side frame 22 by bolts, and the heating surface of the electric heating plate 23 is located on the upper side.

[0068] When the film is transferred from the conveying table 3 to the working table 2, the film being clamped and transported will pass over the side rack 22, and the electric heating plate 23 will simply preheat the lower side of the film, thereby improving the film lamination effect of the film and the backlight module.

[0069] The use process of the mechanical arm for backlight module film lamination provided by the present invention is as follows:

[0070] The backlight module is positioned and fixed by the backlight module locking frame 4 of the workbench 2, and the film to be attached is transported by the film frame 6 of the conveying table 3. When attaching the film, the two mechanical arms 10 descend, and the two self-checking clamping components at the front end clamp the film (accompanied by the movement of the two mechanical arms 10, the two clamping plates 1101 on the same side move closer to each other, and the film is clamped between the two clamping plates 1101), and then the two mechanical arms 10 lift up to take the film out of the film frame 6 and transport it to the top of the workbench 2 (the feeding motor 13 starts to drive the rotary table 9 to rotate);

[0071] Then, the film pasting operation of the backlight module is performed. After the film is pasted, the self-inspection clamping assembly releases the film and performs a film neatness detection on the backlight module after the film is pasted (the reversing motor 1108 rotates to drive the screw 1109 to rotate, and the self-inspection seat 1103 moves on the clamping plate 1101. In this process, the self-inspection wheel first approaches the backlight module after the film is pasted, and finally the self-inspection wheel contacts the backlight module after the film is pasted. The self-inspection rod 1105 is deflected toward the self-inspection seat 1103 by force, and the self-inspection spring 1107 is compressed by force. The pressure sensor 1104 transmits a force signal, and the self-inspection seat 1103 moves to the clamping plate 110 1 The other end is reset again, and the output signal of the pressure sensor 1104 is always transmitted to the terminal. The change value of the pressure signal can be used to directly determine whether the film and the backlight module are neatly attached: the self-inspection seat 1103 is reset from the other end of the clamping plate 1101 to the initial position. If the pressure signal remains constant, it means that the attachment is neat). Then the backlight module with the film attached is transported away from the workbench 2, and the robot arm continues to move down and restore the clamping angle (the two self-inspection clamping components 11 above the workbench 2 are empty, and the two self-inspection clamping components 11 above the conveying table 3 clamp another film);

[0072] During the process, the clamping and releasing operations of the diaphragm by the self-test clamping assembly are driven by the protective clamping module 12 (under the elastic force of the reset spring 1203, the two mechanical arm rods 10 remain away from each other. When clamping is required, the micro air pump 1207 works to fill external air into the air cylinder 1206. The gas in the air cylinder 1206 is pressurized and pressed into the corrugated airbag tube 1204 from the air supply pipe 1209. The corrugated airbag tube 1204 expands after inflation. Since one end of the corrugated airbag tube 1204 is limited by the built-in platform 1201, the corrugated airbag tube 1204 can only expand and stretch to the other end to push the mechanical arm rod 10. The mechanical arm rod 10 deflects to the side away from the built-in platform 1201, the angle between the two mechanical arm rods 10 decreases, and the reset spring 1203 is compressed and elastically deformed).

[0073] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A mechanical arm for backlight module film lamination, characterized in that: The invention comprises a platform (1), a workbench (2) is arranged above the platform (1), a conveying platform (3) is arranged beside the platform (1), a backlight module locking frame (4) is arranged on the workbench (2), a conveying rail (5) is arranged above the conveying platform (3), a film frame (6) is movably connected to the conveying rail (5), a middle frame (7) is arranged between the workbench (2) and the conveying platform (3), a slide groove is provided on the middle frame (7), a lifting platform (8) is movably connected inside the slide groove, and a rotating platform (9) is arranged below the lifting platform (8), two crossed mechanical arms (10) are arranged inside the rotating platform (9), the two mechanical arms (10) are movably connected to each other, both ends of the two mechanical arms (10) are provided with self-checking clamping components (11), and a protective driving clamping module (12) is arranged inside the rotating platform (9); The self-checking clamping assembly (11) comprises a clamping plate (1101) and a self-checking seat (1103), wherein two contact pieces (1102) are fixedly connected to one side of the clamping plate (1101), and a pressure sensor (1104) is arranged on the self-checking seat (1103); the self-checking clamping assembly (11) further comprises a self-checking rod (1105), a short shaft is fixedly connected to the bottom of the self-checking seat (1103), one end of the self-checking rod (1105) is movably connected to the outside of the short shaft, and the other end of the self-checking rod (1105) is movably connected to a detection wheel (1106). A mounting groove is provided below the inspection seat (1103), the pressure sensor (1104) is fixedly connected inside the mounting groove, a self-inspection spring (1107) is fixedly connected between the self-inspection rod (1105) and the pressure sensor (1104), a sliding groove is provided on the clamping plate (1101), a sliding seat is provided on the self-inspection seat (1103), the self-inspection seat (1103) is movably connected in the sliding groove of the clamping plate (1101), a threaded hole is provided on the sliding seat of the self-inspection seat (1103), and a reversing motor (1108) is fixedly connected to one end of the clamping plate (1101) The output end of the reversing motor (1108) is connected to a screw rod (1109) via a coupling, the other end of the screw rod (1109) passes through a threaded hole of a slide seat on the self-test seat (1103) and is movably connected to the inner wall of a slide groove of the clamping plate (1101), and the self-test seat (1103) and the screw rod (1109) are rotatably connected via the inner wall thread; a suspension frame (1110) is fixedly connected to the clamping plate (1101), and a short shaft is fixedly connected to the upper side of the suspension frame (1110), and round holes are opened at both ends of the mechanical arm rod (10), and the suspension frame (1110) The short shaft is movably connected inside the circular hole of the mechanical arm rod (10), the upper end of the short shaft is fixedly connected to a driving gear (1111), and the upper sides of both ends of the mechanical arm rod (10) are fixedly connected to an upper plate (1112), the upper side of the upper plate (1112) is fixedly connected to an adjusting motor (1113), the output end of the adjusting motor (1113) is connected to a rotating shaft via a coupling, the other end of the rotating shaft passes through the upper plate (1112) and is fixedly connected to a driving gear (1114), and the driving gear (1114) and the driving gear (1111) are meshed with each other via tooth grooves; The protective driving clamp module (12) comprises two built-in platforms (1201) and a limiting ring (1202), the limiting ring (1202) and the two built-in platforms (1201) are fixedly connected, the two mechanical arm rods (10) are provided with annular holes, the limiting ring (1202) is movably connected in the annular holes of the two mechanical arm rods (10), and the outside of the limiting ring (1202) is movably connected with two return springs (1203), and both ends of the two built-in platforms (1201) are fixedly connected to each other. The protective driving and clamping module (12) further comprises two connecting platforms (1205), the two connecting platforms (1205) are symmetrically distributed inside the rotating platform (9), and the two connecting platforms (1205) are fixedly connected to a gas cylinder (1206) on one side away from each other, and the gas cylinder (1206) is located between the connecting platform (1205) and the built-in platform (1201), and the middle part of the corrugated gas tube (1204) is set as an annular perforation. The limiting ring (1202) is located inside the annular perforation, and the two ends of the corrugated airbag tube (1204) are respectively fixedly connected to the outer wall of the built-in platform (1201) and the adjacent mechanical arm rod (10), and the end of the corrugated airbag tube (1204) close to the built-in platform (1201) is fixedly connected to the air joint seat (1208), and the air joint seat (1208) and the air cylinder (1206) are fixedly connected to the air delivery pipe (1209); two circular holes are provided below the rotating platform (9), and the two circular holes are connected to the inner wall of the rotating platform (9). The lower side of each air cylinder (1206) is fixedly connected to a short tube, the other end of the short tube passes through the circular hole of the rotary table (9) and is fixedly connected to a micro air pump (1207), the micro air pump (1207) is fixedly connected to the lower side of the rotary table (9), and the two return springs (1203) are symmetrically distributed, the two return springs (1203) are located between the two mechanical arm rods (10), and the two ends of the two return springs (1203) are fixedly connected to the outer walls of the two mechanical arm rods (10).

2. The backlight module film pasting robot according to claim 1, characterized in that: A feeding motor (13) is fixedly connected to the upper side of the lifting platform (8), and the feeding motor (13) is located directly above the rotary table (9). A circular hole is opened on the lifting platform (8), and the output end of the feeding motor (13) is connected to a short shaft via a coupling, and the other end of the short shaft passes through the lifting platform (8) and is fixedly connected between the circular hole and the rotary table (9), and a weighted seat (15) is fixedly connected to the side of the lifting platform (8) away from the feeding motor (13).

3. The backlight module film pasting robot according to claim 2, characterized in that: A bottom plate (14) is provided below the lifting platform (8), the bottom plate (14) and the lifting platform (8) are fixedly connected, the lower end of the middle frame (7) is fixedly connected to the shift frame (16), and the upper side of the shift frame (16) is fixedly connected to a lifting hydraulic cylinder (17), and the telescopic end of the lifting hydraulic cylinder (17) is fixedly connected upward to the lower side of the bottom plate (14).

4. The backlight module film pasting robot according to claim 3, characterized in that: Four symmetrical support frames (18) are fixedly connected to the upper side of the platform (1), the workbench (2) is located above the four support frames (18), the upper ends of the four support frames (18) are fixedly connected to the lower side of the workbench (2), and an attached plate (19) is fixedly connected to one side of the platform (1) close to the conveying platform (3).

5. The backlight module film pasting robot according to claim 4, characterized in that: A slide groove is provided on the upper side of the attached plate (19), a slide seat is provided below the shift frame (16), the shift frame (16) and the attached plate (19) are movably connected, and a partition (20) is fixedly connected to the upper side of the attached plate (19), the partition (20) is located between the two support frames (18), a circular hole is provided on the partition (20), an electric push rod (21) is fixedly connected to the upper side of the platform (1), and the telescopic end of the electric push rod (21) passes through the circular hole of the partition (20) and is fixedly connected to the shift frame (16).

6. The backlight module film pasting robot according to claim 1, characterized in that: A side frame (22) is fixedly connected to a side of the middle frame (7) close to the rotary table (9); the side frame (22) is L-shaped, and an electric heating plate (23) is fixedly connected to the upper side of the side frame (22); the heating surface of the electric heating plate (23) is located on the upper side.

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