Liquid crystal panel frame assembly equipment

Abstract

The present invention relates to the field of display panel manufacturing, and specifically to a liquid crystal panel frame assembly device, comprising: a loading mechanism, including a panel loading assembly and a frame loading assembly; a pre-positioning mechanism, including a carrier and a first positioning assembly; an assembly mechanism, including a second positioning assembly and a second mechanical arm; and a unloading mechanism. When assembling a U-shaped frame, first tilt the frame to place the snap-fitting part at the lower end of the panel, and then rotate and reset. During this process, the snap-fitting part is always at the lower end of the panel, avoiding the problem that the snap-fitting part contacts the side of the liquid crystal panel during direct assembly, resulting in the frame being unable to be installed; at the same time, when the opening size of the card slot of the U-shaped frame is too small or the frame as a whole is slightly twisted and deformed, the frame assembly reverse rotation and reset process is also the frame correction process, ensuring that the frame can be stably snapped with the liquid crystal panel.

Description

Technical Field

[0001] The present invention relates to the technical field of display panel manufacturing, and in particular to a liquid crystal panel frame assembly device. Background Art

[0002] During the manufacturing process of the display panel, after the panel is assembled, a frame needs to be assembled on the edge. The frame strengthens and protects the display panel, and can also be used to install parts such as the housing and bracket. According to the production requirements of different specifications or types of display panels, one or more frames can be assembled. In the prior art, the frame of the display panel is formed by bending a thin metal plate multiple times, and the cross-section after bending is L-shaped or U-shaped, such as Fig.11 As shown, the U-shaped frame includes an upper frame plate, a side plate and a plurality of snap-fit ​​parts. In actual production, the bending dimensions are prone to be unstable. In traditional manual production, assembly can be performed through manual adjustment on site, but in automated production, it is easy to be unable to assemble, or forced assembly may cause damage to the panel or the snap-fit ​​parts to be squeezed and folded, resulting in poor assembly; in addition, for frame products with a larger length, a certain degree of distortion and deformation may occur after bending, which may also lead to the inability to assemble with the panel. Therefore, how to ensure the stable installation of the frame in automated production is a problem that technicians in this field need to consider. Summary of the invention

[0003] The purpose of the present invention is to provide a liquid crystal panel frame assembly device to solve the problem of poor assembly with the panel caused by factors such as unstable frame size in the prior art.

[0004] The technical solution of the present invention is: a liquid crystal panel frame assembly device, comprising:

[0005] The feeding mechanism includes a panel feeding assembly and a frame feeding assembly. The panel is fed by the panel feeding assembly and transported to the assembly station by the transport assembly. The frame feeding assembly includes a silo assembly and a first mechanical arm. The silo assembly is provided with a feeding station. The first picking device on the first mechanical arm picks up the frame at the feeding station and transfers it to the pre-positioning station.

[0006] The pre-positioning mechanism includes a platform and a first positioning component, wherein the pre-positioning station is arranged on the platform, and a boss is arranged on the side of the platform close to the first positioning component. When the frame is transferred to the platform, the first positioning component pushes the frame to move toward the side close to the platform, so that the card slot on the frame is embedded in the boss;

[0007] The assembly mechanism includes a second positioning assembly and a second mechanical arm. When the panel is transferred to the assembly station, it is positioned by the second positioning assembly. The second mechanical arm picks up the frame at the pre-positioning station through the second picking device and transfers it to the assembly station to complete assembly with the panel. During assembly, the second mechanical arm drives the frame to tilt no more than 45 degrees, and the engaging portion at the lower end of the frame contacts the lower end surface of the panel and is close to the edge. The frame then rotates in the opposite direction and moves toward the panel to achieve assembly with the panel.

[0008] The unloading mechanism, the transport component transports the assembled panel to the unloading station, and the unloading is completed after being detected by the detection device.

[0009] Preferably, the panel loading assembly comprises two symmetrically arranged first conveyor belts, and a third positioning assembly arranged above the first conveyor belts, and the panel is loaded through the first conveyor belts;

[0010] The third positioning assembly includes a first material blocking device and a first positioning device. The first material blocking device is arranged at the downward end of the first conveyor belt in the conveying direction, and includes a first material blocking plate and a first driving device that drives the first material blocking plate to move downward. When the panel is transmitted on the first conveyor belt, the first driving device drives the first material blocking plate to move downward to the front of the panel and contacts the panel to realize the positioning of the panel in the forward direction.

[0011] The first positioning device includes two groups of first push rods symmetrically arranged on both sides of the first conveyor belt, and a second driving device that can simultaneously drive the two groups of first push rods to move in opposite directions or toward each other. When the first material baffle plate stops the panel, the second driving device drives the two groups of first push rods to move toward each other, and the panels are abutted on both sides to achieve positioning of the panels on both sides of the forward direction.

[0012] Preferably, the silo assembly comprises an upper silo, a lower silo and a first transfer device with a driving stroke between the upper silo and the lower silo;

[0013] The loading bin includes a symmetrically arranged second conveyor belt and a third driving device connected to the first supporting frame and capable of driving the first supporting frame to move in a vertical direction, the first supporting frame is arranged between two of the second conveyor belts, and a pallet with a plurality of frames is conveyed by the second conveyor belt to the top of the first supporting frame; the third driving device drives the first supporting frame to move upward and supports the pallet to move upward to the loading station;

[0014] The unloading bin includes a symmetrically arranged third conveyor belt and a fourth driving device connected to a second supporting frame and capable of driving the second supporting frame to move in a vertical direction. The second supporting frame is arranged between two of the third conveyor belts. After all the frames on the pallet are taken out at the loading station, the first transferring device picks up the pallet and transfers it to the second supporting frame. The second supporting frame moves downward under the drive of the fourth driving device until the pallet is placed on the third conveyor belt and is transported out through the third conveyor belt.

[0015] Preferably, the first picking device includes a first rotating drive device connected to the first mechanical arm, and a first suction cup assembly connected to the first rotating drive device, and the first suction cup assembly can absorb the frame.

[0016] Preferably, a plurality of first suction nozzles are provided below the platform, and the frame is fixed by suction through the first suction nozzles when it is placed on the platform.

[0017] Preferably, the upper edge of the boss away from the carrier is provided with a chamfer. When the first robotic arm drives the frame and places it on the carrier, the frame is first tilted and the upper frame plate surface of the frame is made to contact the chamfered surface. Then the frame is moved toward the side close to the carrier so that the locking portion of the frame is placed directly below the boss. Then the frame is rotated in the opposite direction so that the upper frame plate is horizontally attached to the surface of the carrier. Driven by the first positioning assembly, the locking groove of the frame is locked with the boss.

[0018] Preferably, the first positioning assembly includes a second positioning device arranged on the side of the platform close to the boss, and a third positioning device arranged at the end of the platform;

[0019] The second positioning device includes a fifth driving device and a first push block connected to the fifth driving device, wherein the fifth driving device can drive the first push block to abut against the side plate of the frame, so that the side plate abuts against the side edge of the boss;

[0020] The third positioning device includes a sixth driving device and two second pushing blocks connected to the sixth driving device, the two second pushing blocks are respectively arranged on both sides of the platform, and the sixth driving device can drive each second pushing block to move towards each other at the same time to abut against both sides of the frame on the platform.

[0021] Preferably, the second picking device comprises a seventh driving device connected to the second mechanical arm and an eighth driving device connected to the seventh driving device, a positioning plate connected to the eighth driving device, and a second suction cup assembly connected to the positioning plate;

[0022] The positioning plate includes a suction plate and a push plate, the suction plate and the push plate are connected in an L shape, the second suction cup assembly is arranged on the suction plate, when the frame is sucked, the upper frame plate of the frame contacts the suction plate, and the side plate of the frame contacts the push plate.

[0023] Preferably, the second positioning assembly comprises first brackets disposed on both sides of the transport assembly and capable of carrying panels, and fourth positioning devices respectively connected to the first brackets on both sides;

[0024] The fourth positioning device includes a second push rod and a ninth driving device connected to the second push rod and capable of driving the second push rod to move toward the panel, and two third push rods arranged in the panel transport direction and a tenth driving device capable of simultaneously driving the two third push rods to move toward each other;

[0025] When the panel is transported to the first bracket, the ninth driving devices on both sides simultaneously drive the second push rods to move toward each other and press against the two sides of the panel; at the same time, the tenth driving device drives the third push rods to move toward each other and press against the two ends of the panel transmission direction.

[0026] Preferably, the assembly mechanism further comprises a plurality of bit assemblies. After the panel and the frame are assembled, the plurality of bit assemblies are used to fix the frame to the panel via screws.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] (1) When assembling the U-shaped frame, first tilt the frame to place the snap-fitting portion at the lower end of the panel, and then rotate it to reset. During this process, the snap-fitting portion is always at the lower end of the panel, thus avoiding the problem of the snap-fitting portion contacting the side of the liquid crystal panel during direct assembly, which makes the frame unable to be installed;

[0029] At the same time, when the opening size of the U-shaped frame slot is too small or the frame as a whole is slightly distorted, the frame assembly reverse rotation reset process is also the frame correction process, ensuring that the frame can be stably connected to the LCD panel;

[0030] (2) The pre-positioning component not only pre-positions the frame, but also makes preliminary corrections to the frame size. Specifically, when the frame is pre-positioned, the frame slot is inserted into the boss. If the slot opening is too small or the frame as a whole is distorted, the boss can open the slot to increase its opening size. At the same time, the frame fits with the boss and the carrier, which plays a role in correcting the torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0032] Figure 1 It is a structural schematic diagram of the liquid crystal panel frame assembly device of the present invention;

[0033] Figure 2 It is a schematic diagram of the top view of the structure of the liquid crystal panel frame assembly device of the present invention;

[0034] Figure 3It is a structural schematic diagram of the panel loading assembly of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the frame feeding assembly of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the silo assembly of the present invention;

[0037] Figure 6 is a schematic structural diagram of the first mechanical arm of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the pre-positioning mechanism of the present invention;

[0039] Figure 8 It is a structural schematic diagram of the assembly mechanism of the present invention;

[0040] Fig. 9 is a schematic structural diagram of the fifth positioning assembly of the present invention;

[0041] Fig.10 is a schematic structural diagram of the second mechanical arm of the present invention;

[0042] Fig.11 It is a structural schematic diagram of the frame of the present invention;

[0043] Fig.12 It is a schematic diagram of the process of the frame assembly of the present invention.

[0044] Wherein: a panel loading assembly 1, a first conveyor belt 11, a third positioning assembly 12, a first material blocking device 121, a first material blocking plate 1211, a first driving device 1212, a first positioning device 122, a first push rod 1221, and a second driving device 1222;

[0045] Frame loading assembly 2, loading station 2a, silo assembly 21, upper silo 211, second conveyor belt 2111, first support bracket 2112, third drive device 2113, guide plate 2114, guide block 2115, fifth positioning device 2116, lower silo 212, third conveyor belt 2121, second support bracket 2122, fourth drive device 2123, first transfer device 213, first mechanical arm 22, first picking device 221, first rotation drive device 222, first suction cup assembly 223;

[0046] Carrier 3, pre-positioning station 3a, boss 31, chamfer 32, first suction nozzle 33, visual positioning device 34;

[0047] A first positioning assembly 4, a second positioning device 41, a fifth driving device 411, a first pushing block 412, a third positioning device 42, a sixth driving device 421, and a second pushing block 422;

[0048] The second positioning assembly 5, the assembly station 5a, the first bracket 51, the fourth positioning device 52, the second push rod 521, the ninth driving device 522, the third push rod 523, and the tenth driving device 524;

[0049] A second robot arm 6, a second picking device 61, a seventh driving device 611, an eighth driving device 612, a positioning plate 613, a suction plate 6131, a push plate 6132, and a second suction cup assembly 614;

[0050] Bit assembly 7, fastening station 7a;

[0051] Unloading station 8a, fourth conveyor belt 81, visual inspection device 82;

[0052] Frame 9, upper frame plate 91, side plate 92, and engaging portion 93;

[0053] Panel 10. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below in conjunction with specific embodiments:

[0055] like Figure 1 - Figure 2 As shown, the present invention is applied to the assembly of panels and frames in the manufacturing process of liquid crystal display screens. The panel is transferred to the panel loading assembly after the previous process or manual loading, and is initially positioned at the panel loading assembly; then it is transported to the assembly station by the transport assembly, and is positioned and fixed by the second positioning assembly at the assembly station; a tray carrying multiple frames is loaded to the loading station by the frame loading assembly, and then picked up by the first robot arm and transferred to the pre-positioning station, and pre-positioned at the pre-positioning station; the second robot arm picks up the frame at the pre-positioning station and transfers it to the assembly station, assembles it with the panel, and fixes it with screws installed by the screwdriver assembly; then it is transported to the unloading station by the transport assembly to complete unloading. Specifically: a liquid crystal panel frame assembly device, comprising:

[0056] The loading mechanism includes a panel loading assembly 1 and a frame loading assembly 2. The panel is loaded by the panel loading assembly 1 and transported to the assembly station by a transport assembly (not shown).

[0057] like Figure 3As shown, the panel loading assembly 1 includes two symmetrically arranged first conveyor belts 11, and a third positioning assembly 12 arranged above the first conveyor belts 11. The third positioning assembly 12 includes a first material blocking device 121 and a first positioning device 122. The first material blocking device 121 is arranged at the downward end of the conveying direction of the first conveyor belt 11, and includes a first material blocking plate 1211 and a first driving device 1212 that drives the first material blocking plate 1211 to move downward. The first positioning device 122 includes two groups of first push rods 1221 symmetrically arranged on both sides of the first conveyor belt 11, and a second driving device 1222 that can simultaneously drive the two groups of first push rods 1221 to move in opposite directions.

[0058] In this embodiment, when the panel 10 is loaded, the panel 10 is placed on the first conveyor belt 11 by the previous process or manually, and the two sides of the panel 10 are respectively overlapped on the two first conveyor belts 11, and are transported forward by the first conveyor belt 11. When the panel 10 is transported on the first conveyor belt 11, the first driving device 1212 drives the first material blocking plate 1211 to move downward to the front of the panel 10. When the panel 10 is transported to the first material blocking plate 1211, it is blocked and stopped from being transported, so that the panel 10 is positioned in the forward direction; the second driving device 1222 drives the two groups of first push rods 1221 to move toward each other, and the two sides of the first conveyor belt 11 in the transport direction simultaneously contact the panel 10, so that the panel 10 is positioned in the forward direction. After that, the first conveyor belt 11 stops rotating, and the transport component under the panel 10 transports the panel 10 to the assembly station for assembly.

[0059] like Figure 4 - Figure 6 As shown, the frame loading assembly 2 includes a bin assembly 21 and a first mechanical arm 22. The bin assembly 21 is provided with a loading station 2a. The first picking device 221 on the first mechanical arm 22 picks up the frame 9 at the loading station 2a and transfers it to the pre-positioning station 3a. The first picking device 221 includes a first rotating drive device 222 connected to the first mechanical arm 22, and a first suction cup assembly 223 connected to the first rotating drive device 222. The first suction cup assembly 223 can suck the frame 9.

[0060] The silo assembly 21 includes an upper silo 211, a lower silo 212, and a first transfer device 213 with a driving stroke between the upper silo 211 and the lower silo 212. The upper silo 211 includes a symmetrically arranged second conveyor belt 2111 and a third drive device 2113 connected to a first support bracket 2112 and capable of driving the first support bracket 2112 to move in a vertical direction, and the first support bracket 2112 is arranged between the two second conveyor belts 2111. The lower silo 212 includes a symmetrically arranged third conveyor belt 2121 and a fourth drive device 2123 connected to a second support bracket 2122 and capable of driving the second support bracket 2122 to move in a vertical direction, and the second support bracket 2122 is arranged between the two third conveyor belts 2121.

[0061] In this embodiment, a pallet with multiple frames 9 is transferred to the second conveyor belt 2111 manually or by other conveying devices, and the two sides of the pallet are respectively overlapped on the two second conveyor belts 2111; under the transmission of the second conveyor belt 2111, it is transmitted to the top of the first support frame 2112; the third drive device 2113 drives the first support frame 2112 to move upward and supports the pallet upward to the loading station 2a; the first robot arm 22 takes out the frames 9 on the pallet one by one, and after all of them are taken out, the first transfer device 213 picks up the pallet and transfers it to the second support frame 2122; the second support frame 2122 moves downward to the third conveyor belt 2121 driven by the fourth drive device 2123, so that the two sides of the pallet are respectively overlapped on the two third conveyor belts 2121, and is transmitted out through the third conveyor belt 2121. It should be noted that guide plates 2114 are provided on both sides of the second conveyor belt 2111. When the pallet is conveyed on the second conveyor belt 2111, it is guided by the guide plates 2114. A guide block 2115 is provided on the first support bracket 2112. When supporting the pallet, the pallet slides onto the first support bracket 2112 along the inclined surface of the guide block 2115. Through the guidance of the guide plates 2114 and the guide blocks 2115, the position of the pallet on the first support bracket 2112 is basically standardized. A fifth positioning device 2116 is provided on both sides of the loading station 2a. The fifth positioning device 2116 includes an eleventh drive device and a fourth push block connected to the eleventh drive device. When the pallet is transported to the loading station 2a, the eleventh drive devices on both sides simultaneously drive the fourth push blocks to move toward each other, and the pallet is abutted on both sides to achieve positioning of the pallet.

[0062] like Figure 7As shown, the pre-positioning mechanism includes a carrier 3 and a first positioning assembly 4, the pre-positioning station 3a is arranged on the carrier 3, a boss 31 is arranged on the side of the carrier 3 close to the first positioning assembly 4, and a chamfer 32 is arranged on the upper edge of the boss 31 away from the carrier; a plurality of first suction nozzles 33 are arranged below the carrier 3, and the frame 9 is fixed by suction through the first suction nozzles 33 when placed on the carrier 3. The first positioning assembly 4 includes a second positioning device 41 arranged on the side of the carrier 3 close to the boss 31, and a third positioning device 42 arranged at the end of the carrier.

[0063] In this embodiment, when the frame 9 is transferred to the pre-positioning station 3a, the first suction cup assembly 223 sucks the frame 9 at the loading station 2a, and the first rotary drive device 222 drives the frame 9 to rotate a certain angle, so that the side plate 92 of the frame 9 is lower than the upper frame plate 91. When the frame 9 approaches the carrier 3, the upper frame plate 91 first contacts the chamfer 32 on the boss 31, and the engaging portion 93 of the frame 9 is below the boss 31; then the first rotary drive device 222 drives the frame 9 to rotate in the opposite direction until the upper frame plate 91 is attached to the carrier 3, and at the same time, the first mechanical arm 22 drives the frame 9 to move toward the carrier 3, and at this time, the card slot of the frame 9 is just connected to the boss 31. Afterwards, the fifth drive device 411 drives the first push block 412 to contact the side plate 92 of the frame 9 until the side plate 92 contacts the side of the boss 31; at the same time, the sixth drive device 421 drives the second push block 422, so that the second push blocks 422 at both ends contact the frame 9, completing the positioning of the frame 9 in the length direction.

[0064] It should be noted that, at the pre-positioning mechanism, when the card slot of the frame 9 is engaged with the boss 31, the frame 9 is also initially corrected. That is, when the opening size of the card slot is relatively small, the engagement of the card slot with the boss 31 supports the opening of the card slot, increases the opening size, and facilitates assembly with the panel 10. A visual positioning device 34 is provided directly above the pre-positioning station 3a, and the position information of the frame 9 can be collected by the visual positioning device 34, so that the first robot arm 22 and the second robot arm 6 can accurately place or pick up the work.

[0065] like Figure 8 - Fig.10 As shown, the assembly mechanism includes a second positioning component 5 and a second mechanical arm 6.

[0066] The second mechanical arm 6 is connected to a second pickup device 61, which includes a seventh driving device 611 connected to the second mechanical arm 6 and an eighth driving device 612 connected to the seventh driving device 611, a positioning plate 613 connected to the eighth driving device 612, and a second suction cup assembly 614 connected to the positioning plate 613. The positioning plate 613 includes a suction plate 6131 and a push plate 6132, which are connected in an L shape, and the second suction cup assembly 614 is arranged on the suction plate 6131. ​​When the frame 9 is sucked, the upper frame plate 91 of the frame 9 contacts the suction plate 6131, and the side plate 92 of the frame 9 contacts the push plate 6132.

[0067] The second positioning assembly 5 includes first brackets 51 disposed on both sides of the transport assembly and capable of carrying the panel 10, and fourth positioning devices 52 respectively connected to the first brackets 51 on both sides. The fourth positioning device 52 includes a second push rod 521 and a ninth driving device 522 connected to the second push rod 521 and capable of driving the second push rod 521 to move toward the panel 10, as well as two third push rods 523 disposed in the transport direction of the panel 10 and a tenth driving device 524 capable of simultaneously driving the two third push rods 523 to move toward each other.

[0068] In this embodiment, when the transport assembly transports the panel 10 to the assembly station 5a, the panel 10 is placed on the two first brackets 51, and the ninth driving devices 522 on both sides respectively drive the second push rods 521 on both sides to move toward each other, and the two sides of the transport direction contact the panel 10. At the same time, the front and rear tenth driving devices 524 respectively drive the third push rod 523, and the front and rear ends of the transport direction contact the panel 10, thereby achieving the positioning of the panel 10. It should be noted that the ninth driving devices 522 on both sides are independent of each other. After the panel 10 is positioned, the ninth driving device 522 on the side of the frame 9 to be assembled drives the second push rod 521 to reset to make way for the assembly of the frame 9.

[0069] The second robot arm 6 drives the second picking device 61 to the pre-positioning station 3a to pick up the frame 9. When picking up, the suction plate 6131 contacts the upper frame plate 91 of the frame 9, and the push plate 6132 contacts the side plate 92 of the frame 9. The upper frame plate 91 is sucked tightly by the second suction cup assembly 614, and first moves horizontally in the direction close to the boss 31 of the carrier, so that the card slot of the frame 9 is separated from the boss 31; and then it is transported to the assembly station 5a.

[0070] like Fig.12As shown, during assembly, the second mechanical arm 6 drives the frame 9 to tilt at a certain angle, generally not exceeding 45°, so that the side plate 92 of the frame 9 is lower than the upper frame plate 91; at this time, the side edge of the panel 10 is at the opening of the slot, and the locking portion 93 at the lower end of the frame 9 is in contact with the lower end surface of the panel 10 and close to the edge; then the frame 9 is driven to rotate in the opposite direction with the locking portion 93 and the panel 10 as the rotation axis, so that the upper frame plate 91 of the frame 9 tends to move horizontally; then the frame 9 is driven to move toward the panel 10, so that the slot is completely locked on the panel 10, and assembly with the panel 10 is achieved.

[0071] It should be noted that, in actual production, due to the space limitation at the assembly station 5a, when the frame 9 is transported to the assembly station 5a, the seventh driving device 611 and the eighth driving device 612 can cooperate to place the card slot of the frame 9 on the side of the panel 10. After reverse rotation, the positioning plate 613 can be driven by the eighth driving device 612 to completely engage the card slot on the panel 10.

[0072] In addition, the assembly mechanism also includes a plurality of screwdriver bit assemblies 7. After the panel 10 is assembled with the frame 9, the plurality of screwdriver bit assemblies 7 fix the frame 9 to the panel 10 through screws. In this embodiment, the frame 9 assembly requires screwing in more positions. Therefore, the screws at the assembly station 5a are pre-tightened screws. After that, the transport assembly transports the panel 10 to the next fastening station 7a to perform the screwing operation again. Among them, the fastening station 7a is provided with a corresponding positioning mechanism and a screwdriver bit assembly 7, which is basically the same as the second positioning assembly 5 and the screwdriver bit assembly 7 at the assembly station 5a, and will not be repeated here.

[0073] A visual inspection device 82 is provided directly above the unloading station 8a, and the visual inspection device 82 inspects the assembled panel 10. After the inspection is completed, the panel 10 is transferred to the fourth conveyor belt 81 at the unloading station 8a by the handling assembly. Through the transmission of the fourth conveyor belt 81, the panel 10 enters the next process or is collected by the operator.

[0074] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A liquid crystal panel frame assembly device, characterized in that: include: The feeding mechanism includes a panel feeding assembly and a frame feeding assembly. The panel is fed by the panel feeding assembly and transported to the assembly station by the transport assembly. The frame feeding assembly includes a silo assembly and a first mechanical arm. The silo assembly is provided with a feeding station. The first picking device on the first mechanical arm picks up the frame at the feeding station and transfers it to the pre-positioning station. The pre-positioning mechanism includes a platform and a first positioning component, wherein the pre-positioning station is arranged on the platform, and a boss is arranged on the side of the platform close to the first positioning component. When the frame is transferred to the platform, the first positioning component pushes the frame to move toward the side close to the platform, so that the card slot on the frame is embedded in the boss; The assembly mechanism includes a second positioning assembly and a second mechanical arm. When the panel is transferred to the assembly station, it is positioned by the second positioning assembly. The second mechanical arm picks up the frame at the pre-positioning station through the second picking device and transfers it to the assembly station to complete assembly with the panel. During assembly, the second mechanical arm drives the frame to tilt no more than 45 degrees, and the engaging portion at the lower end of the frame contacts the lower end surface of the panel and is close to the edge. The frame then rotates in the opposite direction and moves toward the panel to achieve assembly with the panel. The unloading mechanism, the transport assembly transports the assembled panel to the unloading station, and the unloading is completed after being inspected by the detection device; The panel loading assembly comprises two symmetrically arranged first conveyor belts, and a third positioning assembly arranged above the first conveyor belts, and the panel is loaded through the first conveyor belts; The third positioning assembly includes a first material blocking device and a first positioning device. The first material blocking device is arranged at the downward end of the first conveyor belt in the conveying direction, and includes a first material blocking plate and a first driving device that drives the first material blocking plate to move downward. When the panel is transmitted on the first conveyor belt, the first driving device drives the first material blocking plate to move downward to the front of the panel and contacts the panel to realize the positioning of the panel in the forward direction. The first positioning device includes two groups of first push rods symmetrically arranged on both sides of the first conveyor belt, and a second driving device that can simultaneously drive the two groups of first push rods to move in opposite directions or toward each other. When the first material baffle plate stops the panel, the second driving device drives the two groups of first push rods to move toward each other, and the panels are abutted on both sides to achieve positioning of the panels on both sides of the forward direction.

2. The liquid crystal panel frame assembly device according to claim 1, characterized in that: The silo assembly includes an upper silo, a lower silo, and a first transfer device with a driving stroke between the upper silo and the lower silo; The loading bin includes a symmetrically arranged second conveyor belt and a third driving device connected to a first support bracket and capable of driving the first support bracket to move in a vertical direction, wherein the first support bracket is arranged between two of the second conveyor belts; a pallet with a plurality of frames is conveyed by the second conveyor belt to the top of the first support bracket; The third driving device drives the first supporting frame to move upward and supports the tray to move upward to the loading station; The unloading bin includes a symmetrically arranged third conveyor belt and a fourth driving device connected to a second supporting frame and capable of driving the second supporting frame to move in a vertical direction. The second supporting frame is arranged between two of the third conveyor belts. After all the frames on the pallet are taken out at the loading station, the first transferring device picks up the pallet and transfers it to the second supporting frame. The second supporting frame moves downward under the drive of the fourth driving device until the pallet is placed on the third conveyor belt and is transported out through the third conveyor belt.

3. The liquid crystal panel frame assembly device according to claim 2, characterized in that: The first picking device includes a first rotating driving device connected to the first mechanical arm, and a first suction cup assembly connected to the first rotating driving device, and the first suction cup assembly can absorb the frame.

4. The liquid crystal panel frame assembly device according to claim 1, characterized in that: A plurality of first suction nozzles are arranged below the carrier, and the frame is fixed by suction through the first suction nozzles when it is placed on the carrier.

5. The liquid crystal panel frame assembly device according to claim 1, characterized in that: The upper edge of the boss away from the carrier is provided with a chamfer. When the first mechanical arm drives the frame and places it on the carrier, the frame is first tilted and the upper frame plate surface of the frame is made to contact the chamfered surface, and then it moves toward the side close to the carrier so that the locking portion of the frame is placed directly below the boss. Then, it rotates in the opposite direction so that the upper frame plate horizontally fits the surface of the carrier, and under the drive of the first positioning component, the locking groove of the frame is locked with the boss.

6. The liquid crystal panel frame assembly device according to claim 5, characterized in that: The first positioning assembly includes a second positioning device arranged on the side of the carrier close to the boss, and a third positioning device arranged at the end of the carrier; The second positioning device includes a fifth driving device and a first push block connected to the fifth driving device, wherein the fifth driving device can drive the first push block to abut against the side plate of the frame, so that the side plate abuts against the side edge of the boss; The third positioning device includes a sixth driving device and two second pushing blocks connected to the sixth driving device, the two second pushing blocks are respectively arranged on both sides of the platform, and the sixth driving device can drive each second pushing block to move towards each other at the same time to abut against both sides of the frame on the platform.

7. The liquid crystal panel frame assembly device according to claim 1, characterized in that: The second picking device includes a seventh driving device connected to the second mechanical arm and an eighth driving device connected to the seventh driving device, a positioning plate connected to the eighth driving device, and a second suction cup assembly connected to the positioning plate; The positioning plate includes a suction plate and a push plate, the suction plate and the push plate are connected in an L shape, the second suction cup assembly is arranged on the suction plate, when the frame is sucked, the upper frame plate of the frame contacts the suction plate, and the side plate of the frame contacts the push plate.

8. The liquid crystal panel frame assembly device according to claim 7, characterized in that: The second positioning assembly includes first brackets disposed on both sides of the transport assembly and capable of carrying panels, and fourth positioning devices respectively connected to the first brackets on both sides; The fourth positioning device includes a second push rod and a ninth driving device connected to the second push rod and capable of driving the second push rod to move toward the panel, and two third push rods arranged in the panel transport direction and a tenth driving device capable of simultaneously driving the two third push rods to move toward each other; When the panel is transported to the first bracket, the ninth driving devices on both sides simultaneously drive the second push rods to move toward each other and press against the two sides of the panel; at the same time, the tenth driving device drives the third push rods to move toward each other and press against the two ends of the panel transmission direction.

9. The liquid crystal panel frame assembly device according to claim 8, characterized in that: The assembly mechanism also includes a plurality of bit assemblies. After the panel and the frame are assembled, the plurality of bit assemblies are used to fix the frame to the panel through screws.

Images