LED frame product testing system conveyor

Abstract

The present invention discloses a conveying device for an LED frame product testing system, the conveying device comprises a power mechanism and a conveying mechanism, the power mechanism is used to provide operating power to the conveying mechanism, the conveying mechanism comprises two front and rear parallel linear guide rails, a slider is provided on the linear guide rails, a conveying mechanism moving seat is provided between the two sliders, a longitudinally arranged conveying mechanism cylinder is provided on the conveying mechanism moving seat, a conveying fixture is provided at the output end of the conveying mechanism cylinder, the conveying fixture comprises a conveying fixture body, a placement groove is provided on the top surface of the conveying fixture body, and a clamping assembly is provided on the conveying fixture body to prevent the product from shaking during the conveying process. The conveying device for an LED frame product testing system of the present invention can avoid positional deviation of the product during the conveying process, reduce the optical detection misjudgment rate, and improve the accuracy of the test results.

Description

Technical Field

[0001] The invention belongs to the technical field of AOI optical inspection equipment, and in particular relates to a conveying device for an LED frame product testing system. Background Art

[0002] LED frames need to be tested for parameters during the production process. The existing LED frame product testing process mainly includes loading, testing, and unloading, which has a low degree of automation, high labor costs, low work efficiency, and inaccurate test results.

[0003] The traditional LED frame test method is to place the product directly on the mobile optical inspection fixture. When the fixture moves past the camera, the shaking it produces is likely to cause the relative position of the product to shift, resulting in misjudgment of the optical inspection, making the inspection content inconsistent with the actual situation and the test results inaccurate.

[0004] Therefore, it is particularly important to seek a conveying device for a LED frame product testing system that can avoid positional deviation of products during transportation, reduce the optical inspection misjudgment rate, and improve the accuracy of test results. Summary of the invention

[0005] The object of the present invention is to provide a conveying device for an LED frame product testing system, which can avoid positional deviation of products during conveying, reduce the optical detection misjudgment rate, and improve the accuracy of test results.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a conveying device of an LED frame product testing system, the conveying device comprising a power mechanism and a conveying mechanism, the power mechanism being used to provide operating power to the conveying mechanism, the conveying mechanism comprising two front and rear parallel linear guide rails, a slider being provided on the linear guide rail, a conveying mechanism moving seat being provided between the two sliders, a longitudinally arranged conveying mechanism cylinder being provided on the conveying mechanism moving seat, a conveying jig being provided at the output end of the conveying mechanism cylinder, the conveying jig comprising a conveying jig body, a placement groove being provided on the top surface of the conveying jig body, and a clamping assembly being provided on the conveying jig body to prevent the product from shaking during the conveying process.

[0007] The clamping assembly includes two left and right parallel fixed bars, the left and right fixed bars are respectively connected to the left and right sides of the placement groove, two front and rear parallel clamping assembly rotating shafts are arranged between the left and right fixed bars, the front and rear clamping assembly rotating shafts are respectively arranged on the front and rear sides of the placement groove, a plurality of hook claws are arranged at intervals on the clamping assembly rotating shaft, a clamping assembly cylinder is respectively arranged on the left and right fixed bars, the two clamping assembly cylinders are arranged in a centrally symmetrical manner, a push block is arranged at the output end of the clamping assembly cylinder, one end of the clamping assembly rotating shaft is connected to the push block through a first rotating block, and the other end of the clamping assembly rotating shaft is connected to the fixed bar through a clamping assembly reset spring.

[0008] The power mechanism comprises two left and right power mechanism synchronous wheels, one end of which is provided with a power source, a power mechanism synchronous belt is provided between the left and right power mechanism synchronous wheels, a fixed block is provided on the power mechanism synchronous belt, and the fixed block is connected to the conveying mechanism moving seat.

[0009] The conveying mechanism moving seat is provided with two front and rear support blocks, a support plate is provided between the tops of the front and rear support blocks, and a longitudinally arranged conveying mechanism cylinder is provided on the support plate.

[0010] A sensing element is arranged on one side of the conveying mechanism moving seat, and conveying mechanism sensors are arranged on the left and right sides of a linear guide rail.

[0011] Compared with the prior art, the present invention provides a conveying device for an LED frame product testing system, which has the following beneficial effects:

[0012] The present invention discloses a conveying device for an LED frame product testing system. By adding a clamping component, a shaking of a material frame product during the movement of a conveying fixture is avoided, the relative position of the product and the conveying fixture is ensured to remain unchanged, the optical inspection misjudgment rate is reduced, and the stability of the optical inspection equipment is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a structural schematic diagram of an LED frame product testing system proposed by the present invention;

[0015] Figure 2 for Figure 1 A magnified view of part A;

[0016] Figure 3This is a schematic structural diagram of another viewing angle of an LED frame product testing system proposed by the present invention;

[0017] Figure 4 for Figure 3 A magnified view of part B;

[0018] Figure 5 for Figure 1 Structural diagram of the grabbing mechanism;

[0019] Figure 6 for Figure 5 Exploded view of the lifting assembly, suction assembly and gripper assembly;

[0020] Figure 7 for Figure 5 Exploded view of the lifting assembly;

[0021] Figure 8 for Figure 5 Exploded view of the adsorption component in the figure;

[0022] Fig. 9 for Figure 5 Exploded view of the middle jaw assembly;

[0023] Fig.10 for Fig. 9 Exploded view of section C;

[0024] Fig.11 for Fig. 9 Schematic diagram of the state of the middle jaw assembly when the cylinder is retracted;

[0025] Fig.12 for Fig. 9 Schematic diagram of the state of the middle jaw assembly when the cylinder is extended;

[0026] Fig.13 for Figure 1 A schematic diagram of the structure of two conveying devices;

[0027] Fig.14 for Fig.13 An exploded view of a single conveying device after removing the conveying fixture;

[0028] Fig.15 for Fig.13 Schematic diagram of the structure of the conveying fixture;

[0029] Fig.16 for Fig.15 Exploded diagram of

[0030] Fig.17 for Figure 4 Structural diagram of the middle material receiving mechanism;

[0031] Fig.18 for Fig.17 The structural diagram of the intermediate receiving component;

[0032] Fig.19 for Fig.17 Schematic diagram of the structure of the feeding component.

[0033] In the figure:

[0034] Rack 1, opening 101

[0035] Feeding device 2, material frame lifting mechanism 201, feeding device paper storage mechanism 202, feeding device longitudinal movement mechanism 203

[0036] First optical inspection device 3

[0037] Second optical inspection device 4

[0038] The third optical detection device 5

[0039] Feeding device 6, moving mechanism 601, feeding device paper storage mechanism 602, inkjet mechanism 603, receiving mechanism 604, receiving assembly 604.1, fixing plate 604.1.1, support column 604.1.2, receiving assembly connecting plate 604.1.3, support shaft 604.1.4, mounting plate 604.1.5, receiving assembly motor 604.1.6, receiving assembly screw rod 604.1.7, receiving assembly lifting plate 604.1.8, lifting shaft 604.1.9, support bar 604.1.10 , feeding assembly 604.2, support seat 604.2.1, first synchronous wheel of feeding assembly 604.2.2, second synchronous wheel of feeding assembly 604.2.3, first synchronous belt of feeding assembly 604.2.4, second synchronous belt of feeding assembly 604.2.5, baffle 604.2.6, motor of feeding assembly 604.2.7, limit assembly 604.3, limit rod 604.3.1, upper limit sensor 604.3.2, lower limit sensor 604.3.3, support column of limit assembly 604.3.4

[0040] Conveying device 7, power mechanism 701, power mechanism synchronous wheel 701.1, power mechanism synchronous belt 701.2, fixed block 701.3, conveying mechanism 702, linear guide rail 702.1, slider 702.2, conveying mechanism moving seat 702.3, support block 702.4, support plate 702.5, conveying mechanism cylinder 702.6, conveying mechanism connecting plate 702.7, induction element 702.8, conveying mechanism sensor 702.9, conveying fixture 703 , conveying fixture body 703.1, placement groove 703.2, clamping assembly 703.3, fixing bar 703.3.1, clamping assembly cylinder 703.3.2, clamping assembly cylinder seat 703.3.3, push block 703.3.4, clamping assembly rotating shaft 703.3.5, hook claw 703.3.6, first rotating block 703.3.7, clamping assembly reset spring 703.3.8, second rotating block 703.3.9, fixed shaft 703.3.10

[0041] Grasping mechanism 8, lifting assembly 8.1, lifting assembly moving seat 8.1.1, lifting assembly cylinder 8.1.2, lifting assembly lifting plate 8.1.3, linear bearing 8.1.4, lifting shaft 8.1.5, buffer spring 8.2.6, adsorption assembly 8.2, bottom plate 8.2.1, adsorption assembly cylinder seat 8.2.2, adsorption assembly cylinder 8.2.3, suction rod fixing seat 8.2.4, vacuum suction rod 8.2.5, vent hole 8.2.6, first blowing block 8.2.7, second blowing block 8.2.8, first sensor fixing seat 8.2. 9. First sensor 8.2.10, jaw assembly 8.3, bidirectional screw 8.3.1, screw fixing seat 8.3.2, nut seat 8.3.3, jaw assembly cylinder 8.3.4, jaw mounting seat 8.3.5, jaw assembly rotating shaft 8.3.6, jaw 8.3.7, jaw assembly reset spring 8.3.8, bevel teeth 8.3.9, adjustment rod 8.3.10, adjustment slot 8.3.11, adjustment block 8.3.12, rotating handle 8.3.13, second sensor fixing seat 8.3.14, second sensor 8.3.15. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 19The present invention provides a technical solution: a LED frame product testing system, comprising a frame 1, on which a loading device 2, a first optical inspection device 3, a second optical inspection device 4, a third optical inspection device 5 and a unloading device 6 are arranged from left to right, and a conveying device 7 is arranged between the loading device 2, the first optical inspection device 3, the second optical inspection device 4 and the third optical inspection device 5. The loading device 2 delivers the material frame product to the conveying device 7 for conveying. During the conveying process, the material frame product passes through the first optical inspection device 3, the second optical inspection device 4 and the third optical inspection device 5 in sequence for multiple parameter detection. The unloading device 6 classifies the material frame products after optical inspection into good products and bad products for classification, stacking and collection;

[0044] The feeding device 2 comprises a feeding device longitudinal movement mechanism 203 mounted on the top surface of the frame 1, two longitudinally movable grasping mechanisms 8 are arranged on the feeding device longitudinal movement mechanism 203, two symmetrically arranged material frame lifting mechanisms 201 are arranged below the feeding device longitudinal movement mechanism 203, a feeding device paper separation storage mechanism 202 is arranged on the outer side of the material frame lifting mechanism 201, a plurality of material frame products are stacked and placed in the material frame lifting mechanism 201, and a paper separation is arranged between each two adjacent material frame products, and the grasping mechanism 8 is used to grasp the material frame products stacked in the corresponding material frame lifting mechanism 201 below it and send them to the conveying device 7, and to absorb the paper separation between two adjacent material frame products in the material frame lifting mechanism 201 and send it to the feeding device paper separation storage mechanism 202;

[0045] The grabbing mechanism 8 comprises a lifting component 8.1, an adsorption component 8.2 and a clamping claw component 8.3. The lifting component 8.1 can move back and forth along the length direction of the longitudinal movement mechanism 203 of the feeding device. The lifting component 8.1 is used to drive the adsorption component 8.2 and the clamping claw component 8.3 to perform lifting and lowering movements. The adsorption component 8.2 is used to adsorb the spacer paper, and the clamping claw component 8.3 is used to grab the material frame.

[0046] The lifting assembly 8.1 comprises a lifting assembly moving seat 8.1.1, a lifting assembly cylinder 8.1.2 with an output end facing downward is arranged on the front side of the lifting assembly moving seat 8.1.1, a lifting assembly lifting plate 8.1.3 is arranged on the output end of the lifting assembly cylinder 8.1.2, linear bearings 8.1.4 are arranged downward on the left and right sides of the lifting assembly lifting plate 8.1.3, a lifting shaft 8.1.5 is arranged in the linear bearing 8.1.4, and a buffer spring 8.2.6 is sleeved on the lifting shaft 8.1.5;

[0047] The adsorption assembly 8.2 comprises a bottom plate 8.2.1, the top surface of the bottom plate 8.2.1 is provided with two left and right adsorption assembly cylinder seats 8.2.2 which are symmetrical with respect to the center, the upper part of the adsorption assembly cylinder seat 8.2.2 is provided with an adsorption assembly cylinder 8.2.3 with an output end facing downward, the output end of the adsorption assembly cylinder 8.2.3 is provided with a suction rod fixing seat 8.2.4, a vertically arranged vacuum suction rod 8.2.5 is provided on the suction rod fixing seat 8.2.4, and the left and right vacuum suction rods 8.2.5 are arranged symmetrically with respect to the center, the bottom surface of the bottom plate 8.2.1 is provided with two left and right first blowing blocks 8.2.7, and the middle part of the bottom surface of the bottom plate 8.2.1 is provided with two front and rear second blowing blocks 8.2.8;

[0048] A first sensor fixing seat 8.2.9 is arranged on the front side of the bottom plate 8.2.1, and a first sensor 8.2.10 is arranged on the first sensor fixing seat 8.2.9, and the first sensor 8.2.10 is used to detect whether the clamping claw assembly 8.3 clamps the product;

[0049] The bottom end of the lifting shaft 8.1.5 is connected to the bottom plate 8.2.1, and the lifting shaft 8.1.5 is located outside the adsorption component cylinder seat 8.2.2;

[0050] The clamping jaw assembly 8.3 includes a longitudinally arranged bidirectional screw rod 8.3.1, the middle section of which is arranged at the middle of the bottom plate 8.2.1 via a screw rod fixing seat 8.3.2. The front section and the rear section are both sleeved with nut seats 8.3.3, and the opposite inner sides of the two nut seats 8.3.3 are both provided with two left-right symmetrically arranged clamping jaw mounting seats 8.3.5, and the top of the clamping jaw mounting seat 8.3.5 is provided with a clamping jaw assembly cylinder 8.3.4 with the output end downward, and the clamping jaw assembly rotating shaft 8.3.6 arranged horizontally is provided in the clamping jaw mounting seat 8.3.5, and the clamping jaw assembly rotating shaft 8.3.6 is provided with a clamping jaw 8.3.7 with a C-shaped structure, and the opening of the clamping jaw 8.3.7 is inward, and an upright clamping jaw assembly reset spring 8.3.8 is provided between the opening top surface of the clamping jaw 8.3.7 and the inner bottom surface of the clamping jaw mounting seat 8.3.5;

[0051] The rotating shaft 8.3.6 of the clamping jaw assembly is provided with two left and right clamping jaws 8.3.7, and the bottom of the clamping jaws 8.3.7 is provided with bevel teeth 8.3.9, and the tooth shapes of the bevel teeth 8.3.9 of the two clamping jaws 8.3.7 are arranged in a staggered manner;

[0052] Two parallel adjustment rods 8.3.10 are arranged between the two nut seats 8.3.3, and the front and rear sections of the adjustment rod 8.3.10 are both provided with longitudinally arranged adjustment slots 8.3.11, and the adjustment slots 8.3.11 are provided with adjustment blocks 8.3.12, and the inner ends of the adjustment blocks 8.3.12 are connected to the ends of the nut seats 8.3.3;

[0053] The middle section of the adjusting rod 8.3.10 is connected to the lower part of the adsorption assembly cylinder seat 8.2.2;

[0054] The end of the bidirectional screw rod 8.3.1 is provided with a rotating handle 8.3.13. Manually rotating the rotating handle 8.3.13 can make the two nut seats 8.3.3 on the bidirectional screw rod 8.3.1 move relative to or oppositely, that is, adjust the distance between the front and rear clamping jaws 8.3.7 on the same longitudinal straight line, so as to realize the grasping of products of different sizes;

[0055] A second sensor fixing seat 8.3.14 is arranged on one of the nut seats 8.3.3, and a second sensor 8.3.15 is arranged on the second sensor fixing seat 8.3.14.

[0056] The working principle of the feeding device 2:

[0057] The grabbing mechanism located on the front side can move forward and backward in the front section of the longitudinal movement mechanism of the feeding device. When the grabbing mechanism located on the front side moves to just above the material frame lifting mechanism located on the front side, the lifting assembly cylinder extends, and drives the adsorption assembly and the clamping claw assembly to move downward to the lower limit position at the same time through the lifting plate of the lifting assembly. When the second sensor detects that there is a material frame product below, the four clamping claw assembly cylinders shrink at the same time, canceling the downward pressure on the clamping claws, and the clamping claws close inward under the action of the clamping claw assembly reset spring. Multiple clamping claws cooperate to generate clamping force on the material frame product. At the same time, multiple blowing blocks clamp the surface of the material frame product. The air is blown on the surface, and the air flow passes through the openings on the surface of the material frame product to generate a force on the separator paper close to the bottom of the material frame product, so that the separator paper is separated from the material frame product, which can prevent the separator paper and the material frame product from being picked up together. When the first sensor detects that the product has been grabbed, the longitudinal movement mechanism of the loading device controls the grabbing mechanism to move to the top of the conveying device, and the four clamping claw assembly cylinders extend at the same time, exerting downward pressure on the top of the clamping claws, so that the clamping claws open outward, and multiple clamping claws cancel the clamping force on the material frame product, so that the material frame product falls into the conveying device, and then the lifting assembly cylinder retracts to drive the adsorption assembly and the clamping claw assembly to move upward to the initial position The longitudinal movement mechanism of the feeding device controls the grasping mechanism to move again to just above the material frame lifting mechanism on the front side, the lifting assembly cylinder extends to drive the adsorption assembly and the clamping claw assembly to move downward to the lower limit position at the same time, and when the second sensor detects that there is a paper separator below, the adsorption assembly cylinder extends to drive the vacuum suction rod to move downward, and after the paper separator is adsorbed by the vacuum suction rod, the longitudinal movement mechanism of the feeding device controls the grasping mechanism to move to just above the paper separator storage mechanism of the feeding device on the front side, and the vacuum suction rod cancels the adsorption force on the paper separator, so that the paper separator falls into the paper separator storage mechanism of the feeding device, and then the lifting assembly cylinder retracts with The dynamic adsorption component and the clamping claw component move upward to the initial position, and the longitudinal movement mechanism of the feeding device controls the grasping mechanism to move again to the top of the material frame lifting mechanism located on the front side, and repeats the above steps to grasp and absorb multiple material frame products and separator papers in the material frame lifting mechanism located on the front side through the grasping mechanism located on the front side and send them to the conveying device and the separator paper storage mechanism of the feeding device respectively. In this process, the material frame lifting mechanism can control the remaining material frame products to move upward after grasping a material frame product each time, so that the material frame products on the top layer are always at a fixed height position for grasping by the grasping mechanism;

[0058] The grabbing mechanism located at the rear side moves forward and backward at the rear section of the longitudinal movement mechanism of the feeding device, and the working principle of the grabbing mechanism located at the rear side is the same as that of the grabbing mechanism located at the front side.

[0059] The conveying device 7 is provided with two front and rear conveying devices 7, which are arranged symmetrically, and the feeding ends of the two front and rear conveying devices 7 are located between the front and rear material frame lifting mechanisms 201;

[0060] The conveying device 7 includes a power mechanism 701 and a conveying mechanism 702, wherein the power mechanism 701 is used to provide operating power to the conveying mechanism 702;

[0061] The power mechanism 701 comprises two left and right power mechanism synchronous wheels 701.1, one end of which is provided with a power source, a power mechanism synchronous belt 701.2 is provided between the left and right power mechanism synchronous wheels 701.1, and a fixing block 701.3 is provided on the power mechanism synchronous belt 701.2;

[0062] The conveying mechanism 702 comprises two front and rear parallel linear guide rails 702.1, a slider 702.2 is arranged on the linear guide rails 702.1, a conveying mechanism moving seat 702.3 is arranged between the two sliders 702.2, the conveying mechanism moving seat 702.3 is arranged with two front and rear support blocks 702.4, a support plate 702.5 is arranged between the tops of the front and rear support blocks 702.4, a longitudinally arranged conveying mechanism cylinder 702.6 is arranged on the support plate 702.5, a conveying mechanism connecting plate 702.7 is arranged at the output end of the conveying mechanism cylinder 702.6, and a conveying fixture 703 is arranged on the conveying mechanism connecting plate 702.7;

[0063] A sensing element 702.8 is provided on one side of the conveying mechanism moving seat 702.3, and conveying mechanism sensors 702.9 are provided on the left and right sides of a straight line guide rail 702.1;

[0064] The two linear guide rails 702.1 are respectively located at the front and rear sides of the power mechanism synchronous belt 701.2;

[0065] The bottom of the conveying mechanism moving seat 702.3 is connected to the top of the fixed block 701.3;

[0066] The conveying fixture 703 includes a conveying fixture body 703.1 and a clamping assembly 703.3, wherein the clamping assembly 703.3 includes two left and right parallel fixed bars 703.3.1, two front and rear parallel clamping assembly rotating shafts 703.3.5 are arranged between the left and right fixed bars 703.3.1, and a plurality of hook claws 703.3.6 are arranged at intervals on the clamping assembly rotating shaft 703.3.5, and the outer side surfaces of the left and right fixed bars 703.3.1 are respectively provided with a longitudinally arranged clamping assembly cylinder 703.3.2, and the two clamping assembly cylinders 703.3.2 are respectively arranged at the front section and the rear section of the two fixed bars 703.3.1 through the clamping assembly cylinder seat 703.3.3, and the two clamping assembly cylinders 703.3.2 are centrally arranged. The two clamping components are symmetrically arranged at the center, and a push block 703.3.4 is provided at the output end of the clamping component cylinder 703.3.2, one end of the clamping component rotating shaft 703.3.5 is connected to the push block 703.3.4 through a first rotating block 703.3.7, and a clamping component reset spring 703.3.8 is provided at the other end of the clamping component rotating shaft 703.3.5, and the clamping component reset spring 703.3.8 is longitudinally arranged on the outside of the fixed bar 703.3.1, one end of the clamping component reset spring 703.3.8 is connected to the end of the clamping component rotating shaft 703.3.5 through a second rotating block 703.3.9, and the other end of the clamping component reset spring 703.3.8 is connected to the fixed bar 703.3.1 through a fixed shaft 703.3.10;

[0067] The top surface of the conveying fixture body 703.1 is provided with a placement groove 703.2, the left and right fixing bars 703.3.1 are respectively fixed to the left and right sides of the placement groove 703.2, and the front and rear clamping assembly rotating shafts 703.3.5 are respectively provided to the front and rear sides of the placement groove 703.2;

[0068] The working principle of the conveying device 7 is as follows:

[0069] The two conveying devices work alternately in succession. After the grabbing mechanism places the material frame product on the conveying jig, the two clamping assembly cylinders extend out at the same time, driving the clamping assembly rotating shaft to rotate, so that multiple claws rotate inward to clamp the material frame product in the placement slot. Then the conveying mechanism cylinder pushes out the conveying jig, the power source starts, and drives the power mechanism synchronous belt to run, so that the conveying jig moves toward the optical inspection station. When the conveying jig moves to the specified position, the clamping assembly cylinder contracts, and at the same time, with the help of the elastic force of the clamping assembly reset spring, the multiple claws rotate outward to return to the initial position, that is, the clamping force on the material frame product is cancelled, thereby avoiding the position displacement of the material frame product due to shaking during the conveying process.

[0070] The unloading device 6 comprises a moving mechanism 601 mounted on the top surface of the frame 1, and a gripping mechanism 8 which can move horizontally and vertically is arranged on the moving mechanism 601. An inkjet mechanism 603, a plurality of material receiving mechanisms 604 arranged in a front-to-back spacing, and a paper storage mechanism 602 of the unloading device are sequentially arranged below the moving mechanism 601 from front to back. The gripping mechanism 8 is used to grab and deliver the good material frame and the bad material frame after optical inspection to the material receiving mechanism 604 and the inkjet mechanism 603 respectively. The inkjet mechanism 603 is used to carry out inkjet marking on the bad material frame, and then grab it to another material receiving mechanism 604 through the gripping mechanism 8. Multiple layers of paper are stacked in the paper storage mechanism 602 of the unloading device, and the paper is sucked and laid on the upper surface of each material frame in the material receiving mechanism 604 through the gripping mechanism 8.

[0071] The three material receiving mechanisms 604 are arranged in sequence from front to back, wherein two of the material receiving mechanisms 604 are used to collect good material frames, and the remaining material receiving mechanism 604 is used to collect bad material frames;

[0072] The receiving mechanism 604 includes a receiving assembly 604.1 disposed below the top plate of the frame 1 and a feeding assembly 604.2 disposed above the top plate of the frame 1. The receiving assembly 604.1 is used to collect and stack the material frame products after being separated from the gripping mechanism 8, and the feeding assembly 604.2 is used to transport the stacked multiple material frame products to the designated discharging position.

[0073] The top plate of the frame 1 is provided with an opening 101, and the material receiving assembly 604.1 is arranged directly below the opening 101;

[0074] The material receiving assembly 604.1 includes a fixed plate 604.1.1 connected to the bottom surface of the top plate of the frame 1, a plurality of upright support columns 604.1.2 are arranged on the bottom surface of the fixed plate 604.1.1, the top ends of the plurality of support columns 604.1.2 are connected to the bottom surface of the fixed plate 604.1.1, a material receiving assembly connecting plate 604.1.3 is arranged between the bottom ends of the plurality of support columns 604.1.2, a plurality of downwardly extending support shafts 604.1.4 are arranged on the bottom surface of the material receiving assembly connecting plate 604.1.3, a mounting plate 604.1.5 is arranged between the bottom ends of the plurality of support shafts 604.1.4, a material receiving assembly motor 604.1.6 with the output end facing upward is arranged on the bottom surface of the mounting plate 604.1.5, the middle part of the material receiving assembly connecting plate 604.1.3 is connected to the fixed plate 604.1.1 An upright material receiving assembly screw rod 604.1.7 is arranged between the material receiving assembly and the fixed plate 604.1.1, and the bottom end of the material receiving assembly screw rod 604.1.7 is connected to the output end of the material receiving assembly motor 604.1.6 through a coupling, and a material receiving assembly lifting plate 604.1.8 is arranged on the material receiving assembly screw rod 604.1.7, and a plurality of lifting shaft groups arranged front and back are arranged upward on the top surface of the material receiving assembly lifting plate 604.1.8, and the lifting shaft group includes two parallel lifting shafts 604.1.9 on the left and right, and the top end of the lifting shaft passes through the fixed plate 604.1.1, and a support bar 604.1.10 is connected between the top ends of the left and right lifting shafts 604.1.9, and a plurality of support bars 604.1.10 are arranged front and back at intervals;

[0075] The feeding assembly 604.2 comprises two left and right support seats 604.2.1 arranged on the top surface of the top plate of the frame 1, a first synchronous wheel 604.2.2 of the feeding assembly and a second synchronous wheel 604.2.3 of the feeding assembly are arranged on the support seat 604.2.1, the first synchronous wheel 604.2.2 of the feeding assembly and the second synchronous wheel 604.2.3 of the feeding assembly are arranged front and back, a first synchronous belt 604.2.4 of the feeding assembly is arranged between the left and right first synchronous wheels 604.2.2 of the feeding assembly, a second synchronous belt 604.2.5 of the feeding assembly is arranged between the left and right second synchronous wheels 604.2.3 of the feeding assembly, a gap is left between the first synchronous belt 604.2.4 of the feeding assembly and the second synchronous belt 604.2.5 of the feeding assembly, and the gap is larger than the width dimension of the support bar 604.1.10;

[0076] The first synchronous wheel 604.2.2 of the feeding assembly and the second synchronous wheel 604.2.3 of the feeding assembly are driven by the feeding assembly motor 604.2.7;

[0077] The ends of the first synchronous belt 604.2.4 and the second synchronous belt 604.2.5 of the feeding assembly are provided with vertical baffles 604.2.6, and the bottom of the baffles 604.2.6 is connected to the top surface of the top plate of the frame 1;

[0078] The material receiving mechanism 604 further comprises a limit assembly 604.3 arranged on the top surface of the top plate of the frame 1, the limit assembly 604.3 comprises a plurality of limit rods 604.3.1 arranged around the opening 101, and the plurality of limit rods 604.3.1 are arranged in a matrix;

[0079] The limit assembly 604.3 also includes an upper limit sensor 604.3.2 and a lower limit sensor 604.3.3. The upper limit sensor 604.3.2 is arranged on one side of the opening 101 through a limit assembly support column 604.3.4. The upper limit sensor 604.3.2 is arranged at the top of the limit assembly support column 604.3.4. The upper limit sensor 604.3.2 is used to detect the number of products on the support bar and the upper limit height position of the support bar. The lower limit sensor 604.3.3 is arranged on the material receiving assembly connecting plate 604.1.3. The lower limit sensor 604.3.3 is used to detect the lower limit height position of the material receiving assembly lifting plate 604.1.8.

[0080] The working principle of the feeding device 4 is as follows:

[0081] The motor of the receiving assembly rotates forward, and the lead screw of the receiving assembly rotates, driving the lifting plate of the receiving assembly to move upward so that the support bar moves to the height position to be received. The grabbing mechanism grabs the material frame product A and sends it to the support bar. The upper limit sensor senses the material frame product A. The motor of the receiving assembly drives the lifting plate of the receiving assembly to move downward to the lower limit height. The motor of the receiving assembly drives the lifting plate of the receiving assembly to move upward again so that the material frame product A Move to the height position to be collected, and use the grabbing mechanism to pick up a piece of separation paper from the separation paper storage mechanism of the unloading device and lay it on the upper surface of the material frame product A. In the process of sucking the separation paper, the left and right first blowing blocks in the grabbing mechanism blow air on the upper surface of the separation paper. Due to the action of the airflow, the separation paper is separated from the second layer of separation paper below, which can prevent the second layer of separation paper below from being sucked together. Then, the material frame product B is grabbed and sent to the support bar through the grabbing mechanism. The upper limit sensor senses the material frame product B, and the material collection component motor drives the material collection component lifting plate to descend and then rise again. The number of products is sensed by the upper limit sensor. After each material frame product is placed, the material collection component motor will perform a lifting action sensing. After a certain number of material frame products are collected, the material collection component motor descends, so that the stacked material frame products are placed on the synchronous belt, and then the feeding component motor is activated to convey the stacked material frame products to the end of the synchronous belt, i.e., the material collection area, and the product is sensed by the sensor to prompt manual material collection.

[0082] When the product in the material frame is good, the grabbing mechanism grabs it and sends it to the good product receiving mechanism for collection;

[0083] When the material frame product is a defective product, the grabbing mechanism grabs it and sends it to the inkjet mechanism, which detects and classifies the defective product. If the unqualified points on the defective product are within the controllable range, it is inkjet marked and sent to the good product receiving mechanism through the grabbing mechanism for collection. If the unqualified points on the defective product are beyond the controllable range, it is inkjet marked and sent to the defective product receiving mechanism through the grabbing mechanism for collection.

[0084] A testing method for an LED frame product testing system, the testing method comprising the following steps:

[0085] Step 1: Place two full material frame bins in two material frame lifting mechanisms respectively to be loaded, wherein a separator paper is laid between adjacent material frame products;

[0086] Step 2: The grabbing mechanism grabs the material frame product in the corresponding material frame lifting mechanism below and sends it to the conveying device for transportation, and sucks the separator paper and sends it to the separator paper storage mechanism of the feeding device. The two grabbing mechanisms work alternately in succession;

[0087] Step 3: The two conveying devices work alternately to convey the material frame products. During the conveying process, the material frame products are sequentially inspected multiple times by the first optical inspection device, the second optical inspection device, and the third optical inspection device;

[0088] The first optical inspection device is used to perform frontal dimension inspection on the material frame product;

[0089] The second optical inspection device is used to inspect the reverse side dimensions of the material frame product;

[0090] The third optical inspection device is used to inspect the front convexity, concaveness and cracks of the material frame product;

[0091] Step 4: The material collecting device classifies, stacks and collects the material frame products after optical inspection.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveying device for a LED frame product testing system, characterized in that: The conveying device (7) comprises a power mechanism (701) and a conveying mechanism (702), wherein the power mechanism (701) is used to provide operating power to the conveying mechanism (702), and the conveying mechanism (702) comprises two front and rear parallel linear guide rails (702.1), wherein a slider (702.2) is provided on the linear guide rail (702.1), and a conveying mechanism moving seat (702.3) is provided between the two sliders (702.2), and a longitudinally arranged conveying mechanism cylinder (702.6) is provided on the conveying mechanism moving seat (702.3), and a conveying fixture (703) is provided at the output end of the conveying mechanism cylinder (702.6), and the conveying fixture (703) comprises a conveying fixture body (703.1), and a placement groove (703.2) is provided on the top surface of the conveying fixture body (703.1), and a clamping assembly (703.3) is provided on the conveying fixture body (703.1) to prevent the product from shaking during the conveying process; The clamping assembly (703.3) comprises two left and right parallel fixed bars (703.3.1), the left and right fixed bars (703.3.1) are respectively connected to the left and right sides of the placement slot (703.2), two front and rear parallel clamping assembly rotating shafts (703.3.5) are arranged between the left and right fixed bars (703.3.1), the front and rear clamping assembly rotating shafts (703.3.5) are respectively arranged on the front and rear sides of the placement slot (703.2), a plurality of hook claws (703.3.6) are arranged on the clamping assembly rotating shaft (703.3.5) at intervals, and the left and right fixed bars (703.3.1) are respectively connected to the left and right sides of the placement slot (703.2). A clamping assembly cylinder (703.3.2) is respectively provided on each of the fixed bars (703.3.1), the two clamping assembly cylinders (703.3.2) are arranged in a central symmetrical manner, a push block (703.3.4) is provided at the output end of the clamping assembly cylinder (703.3.2), one end of the clamping assembly rotating shaft (703.3.5) is connected to the push block (703.3.4) via a first rotating block (703.3.7), and the other end of the clamping assembly rotating shaft (703.3.5) is connected to the fixed bar (703.3.1) via a clamping assembly reset spring (703.3.8); The power mechanism (701) comprises two left and right power mechanism synchronous wheels (701.1), one end of which is provided with a power source, a power mechanism synchronous belt (701.2) is provided between the left and right power mechanism synchronous wheels (701.1), a fixed block (701.3) is provided on the power mechanism synchronous belt (701.2), and the fixed block (701.3) is connected to a conveying mechanism moving seat (702.3).

2. The LED frame product testing system conveying device according to claim 1, characterized in that: Two front and rear support blocks (702.4) are arranged on the conveying mechanism moving seat (702.3), a support plate (702.5) is arranged between the tops of the two front and rear support blocks (702.4), and a longitudinally arranged conveying mechanism cylinder (702.6) is arranged on the support plate (702.5).

3. The LED frame product testing system conveying device according to claim 1, characterized in that: A sensing element (702.8) is provided on one side of the conveying mechanism moving seat (702.3), and conveying mechanism sensors (702.9) are provided on the left and right sides of a linear guide rail (702.1).

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