Optical inspection equipment

Abstract

The present invention relates to an optical inspection device, comprising a workbench and a loading mechanism, an optical inspection mechanism and an unloading mechanism arranged on the workbench from left to right; the optical inspection mechanism comprises a transmission component, a first detection component and a second detection component arranged in sequence from left to right; the transmission component comprises two moving boats arranged symmetrically front and back, and a boat moving module is connected to the moving boat; the first detection component comprises two line scan cameras arranged symmetrically front and back, and the line scan cameras correspond to the moving boats one by one, and the line scan cameras are fixedly connected to the workbench. The optical inspection device implements an appearance optical inspection of a product through a line scan camera, and implements a size optical inspection of a product through a first size camera and a second size camera, wherein the second camera performs an optical inspection on the size of the inclined base island, and implements a silver-plated optical inspection of the product through a silver-plated detection camera, so that an optical inspection of a GAM lead frame can be implemented.

Description

Technical Field

[0001] The invention relates to optical inspection equipment, belonging to the technical field of optical inspection. Background Art

[0002] As the chip carrier of integrated circuits, the lead frame is a key structural component that uses bonding materials (gold wire, aluminum wire, copper wire) to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. It serves as a bridge to connect to external wires. Lead frames are required in most semiconductor integrated blocks and are an important basic material in the electronic information industry.

[0003] During the production process, the lead frame needs to be inspected for quality by an optical inspection machine. The principle of the optical inspection machine is to convert the product into an image signal through the machine camera, transmit it to a dedicated image processing system, and convert it into a digital signal based on pixel distribution, brightness, color and other information; the image system performs various operations on these signals to extract the characteristics of the target, and then controls the equipment action on site according to the judgment results, so as to identify good and defective products;

[0004] In the prior art, for example, the patent number CN201110207361.X discloses a three-stage optical inspection device for IC strips and its working method, which realizes automatic photo inspection through a camera, replacing manual inspection and improving inspection efficiency. However, when the product is a lead frame, especially a GAM lead frame with a beveled base island, it is difficult to perform optical inspection on the beveled base island of the lead frame according to the inspection requirements.

[0005] Therefore, there is a need for a light inspection device to implement light inspection of a GAM lead frame having a sloped base island. Summary of the invention

[0006] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, an optical inspection device is provided for optical inspection of a GAM lead frame having an inclined base island.

[0007] The technical solution adopted by the present invention to solve the above problem is: an optical inspection device, including a workbench and a loading mechanism, an optical inspection mechanism and a unloading mechanism arranged on the workbench from left to right;

[0008] The optical inspection mechanism comprises a transmission component, a first detection component and a second detection component which are arranged in sequence from left to right;

[0009] The transmission assembly includes two moving boats symmetrically arranged front and back, and the moving boats are connected to a boat moving module;

[0010] The first detection component includes two line scan cameras arranged symmetrically front and back, the line scan cameras correspond to the moving boats one by one, and the line scan cameras are fixedly connected to the workbench;

[0011] The second detection assembly includes two second detection units arranged symmetrically with respect to the center, the second detection units correspond to the moving boats one by one, the second detection units include size detection components and silver-plated detection cameras arranged on the left and right, and the silver-plated detection cameras are fixedly connected to the workbench;

[0012] The size detection component includes a first size camera and a second size camera arranged in front and behind.

[0013] Preferably, the length of the second detection unit in the front-to-back direction is twice greater than the length of the second detection component in the front-to-back direction.

[0014] Preferably, the feeding mechanism comprises a feeding assembly and a feeding grabbing assembly arranged on the left and right;

[0015] The feeding assembly comprises two feeding bin groups which are symmetrically arranged front and back, and the feeding bin group comprises a plurality of feeding bin bodies which are sequentially distributed front and back;

[0016] The loading and grabbing assembly includes a four-axis loading robot fixedly mounted on a workbench, the four-axis loading robot is connected to a loading bracket, the bottom of the loading bracket is fixedly connected to a loading base plate, a horizontally arranged rotating shaft is rotatably connected to the loading base plate, a loading suction cup is detachably and fixedly connected to the rotating shaft, a first cylinder is arranged on the loading base plate, a cylinder body of the first cylinder is hinged to the loading base plate, a piston end of the first cylinder is hinged to the rotating shaft, the first cylinder drives the rotating shaft to rotate, and two limit screws are threadedly connected to the loading base plate, and the two limit screws are respectively located above and below the loading suction cup.

[0017] Preferably, the material unloading mechanism comprises a material unloading grabbing assembly and a material unloading assembly arranged from left to right, and there are two material unloading assemblies, which are arranged front and back.

[0018] Preferably, the material unloading and grabbing assembly comprises a four-axis material unloading robot fixedly arranged on a workbench, the four-axis material unloading robot is connected to a material unloading bracket, a first lead screw is arranged below the material unloading bracket, a first knob is installed at one end of the first lead screw, two first nuts are threadedly connected to the first lead screw, the two first nuts are symmetrically distributed along the axis of the first lead screw, and the thread rotation directions of the two first nuts are opposite, two first guide rods symmetrically arranged about the first lead screw are also fixedly arranged below the material unloading bracket, the first guide rod is parallel to the lead screw, the first nut is slidably connected to the first guide rod, and two clamping units are arranged below the first lead screw, and the clamping units correspond to the first nuts one by one;

[0019] The clamping unit includes a clamping cylinder, a cylinder body of the clamping cylinder is fixedly connected to the first nut, a piston end of the clamping cylinder is fixedly connected to a clamping plate, two clamping claws symmetrical about the axis of the first screw are fixedly provided at the bottom of the clamping plate, two second guide rods are provided below the first screw, the second guide rods correspond to the first guide rods one by one, the second guide rods are parallel to the first guide rod, and the clamping plate is slidably connected to the second guide rod.

[0020] Preferably, two limit rods distributed on the left and right are fixedly provided below the unloading bracket, and each clamping claw is located between the two limit rods.

[0021] Preferably, the unloading assembly includes a waste unloading unit, a good product unloading unit and a paper separation conveying unit which are arranged in sequence from left to right.

[0022] Preferably, the waste unloading unit comprises a waste collecting slide rail fixedly arranged on the workbench, the waste collecting slide rail is parallel to the front-rear direction, a waste bin is slidably connected to the waste collecting slide rail, and a handle is fixedly arranged on the waste bin.

[0023] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0024] The buffer component includes two material receiving buffer plates distributed up and down, the material receiving buffer plates are connected to a second cylinder, the second cylinder drives the material receiving buffer plates to move left and right, a side of the material receiving buffer plates close to the baffle is fixedly provided with a plurality of buffer rods evenly distributed front and back, the buffer rods movably pass through the baffle;

[0025] A third lead screw and a limiting slide rail are provided below the fixed plate, the third lead screw is parallel to the front-rear direction, the limiting slide rail is parallel to the third lead screw, the limiting slide rail is fixedly connected to the fixed plate, the third lead screw is rotatably connected to the fixed plate, a third knob is installed on the third lead screw, two limiting columns are threadedly connected to the third lead screw, the threads of the two limiting columns are in opposite directions, the two limiting columns are symmetrically arranged at intervals along the axis of the third lead screw, two limiting sliders are slidably connected to the limiting slide rail, the limiting sliders correspond to the limiting columns one-to-one, and the limiting sliders are fixedly connected to the limiting columns.

[0026] Preferably, the paper separation conveying unit comprises a paper separation bin, a paper separation gripper and two paper separation moving modules arranged front and back, the paper separation bin is tiltedly arranged on the right side of the paper separation gripper, the paper separation gripper is connected to the moving part of the paper separation moving module, and two baffles arranged front and back are fixedly provided on one side of the paper separation bin;

[0027] The paper separation gripper includes a rotating shaft, which is parallel to the front-to-back direction. Both ends of the rotating shaft are rotatably connected to the moving parts of two paper separation moving modules respectively. A third cylinder is obliquely arranged at one end of the rotating shaft, and the cylinder body of the third cylinder is hinged to the moving part of one of the paper separation moving modules. The other end of the third cylinder is hinged to the rotating shaft, and a gap is provided between the axis of the third cylinder and the axis of the rotating shaft. A fourth cylinder is arranged at the middle end of the rotating shaft, and the cylinder body of the fourth cylinder is fixedly arranged on the rotating shaft. A paper separation suction cup is fixedly arranged at the piston end of the fourth cylinder.

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] The present invention provides a light inspection device, which implements a shape light inspection on a product through a line scan camera, implements a size light inspection on a product through a first size camera and a second size camera, wherein the second camera performs a light inspection on the size of a sloped base island, and implements a silver-plated light inspection on a product through a silver-plated inspection camera;

[0030] In summary, optical inspection of the GAM lead frame can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an optical inspection device of the present invention;

[0032] Figure 2 It is a first structural schematic diagram of the feeding and grabbing assembly;

[0033] Figure 3 It is a second structural schematic diagram of the feeding and grabbing assembly;

[0034] Figure 4 This is an exploded view of the loading and grabbing assembly;

[0035] Figure 5 is a schematic structural diagram of a second detection component;

[0036] Figure 6 It is a structural schematic diagram of the material feeding and grabbing assembly;

[0037] Figure 7 This is an exploded view of the blanking grabbing component;

[0038] Figure 8 It is a structural schematic diagram of the waste unloading unit;

[0039] Fig. 9 This is a schematic diagram of the structure of the good product unloading unit;

[0040] Fig.10 This is the exploded diagram of the good product blanking unit;

[0041] Fig.11 It is a schematic diagram of the structure of the buffer component;

[0042] Fig.12 for Fig.11 Exploded diagram of

[0043] Fig.13 It is a structural schematic diagram of a paper separation conveying unit;

[0044] Fig.14 The exploded view of the paper separation conveying unit;

[0045] Fig.15 for Fig.14 A magnified view of part A;

[0046] Fig.16 It is a schematic diagram of the product structure;

[0047] Fig.17 This is the front view of the product;

[0048] Fig.18 A top view of the product;

[0049] Fig.19 This is the left side view of the product.

[0050] Among them: workbench 100, feeding mechanism 200, feeding component 201, feeding bin group 201.1, feeding bin body 201.11, feeding grabbing component 202, four-axis feeding robot 202.1, feeding bracket 202.2, feeding bottom plate 202.3, rotating shaft 202.4, feeding suction cup 202.5, first cylinder 202.6, limit screw 202.7, optical inspection mechanism 300, transmission component 301, moving boat 301.1, boat moving module 301.2, first detection component 302, line scan camera 302.1, second detection component 303, second Detection unit 303.1, size detection component 303.11, first size camera 303.111, second size camera 303.112, silver-plated detection camera 303.12, unloading mechanism 400, unloading grabbing assembly 401, four-axis unloading robot 401.1, unloading bracket 401.2, first lead screw 401.3, first knob 401.4, first nut 401.5, first guide rod 401.6, clamping unit 401.7, clamping cylinder 401.71, clamping plate 401.72, clamping claw 401.73, second guide rod 401.74, limit rod 401.8, unloading assembly 402, waste unloading unit 402.1, waste material receiving slide rail 402.11, waste bin 402.12, handle 402.13, good material unloading unit 402.2, fixed plate 402.21, transmission track 402.22, lifting plate 402.23, lifting module 402.24, material drop opening 402.25, baffle 402.26, good material receiving slide rail 402.27, material receiving slider 402.28, second lead screw 402.29, second knob 402.210, buffer component 402.211, material receiving buffer plate 402. 2111, second cylinder, 402.2112, buffer rod 402.2113, third screw 402.212, limiting slide rail 402.213, third knob 402.214, limiting column 402.215, limiting slider 402.216, paper separation conveying unit 402.3, paper separation bin 402.31, paper separation gripper 402.32, rotating shaft, 402.321, third cylinder 402.322, fourth cylinder 402.323, paper separation suction cup 402.324, paper separation moving module 402.33, baffle 402.34, product 500. DETAILED DESCRIPTION

[0051] like Figure 1-4 As shown, an optical inspection device in this embodiment includes a workbench 100 and a loading mechanism 200, an optical inspection mechanism 300 and an unloading mechanism 400 arranged on the workbench 100 from left to right;

[0052] During the operation of the optical inspection device, the product 500 is transferred to the optical inspection mechanism 300 through the loading mechanism 200 . After the product 500 is optically inspected by the optical inspection mechanism 300 , it is unloaded through the unloading mechanism 400 .

[0053] The feeding mechanism 200 includes a feeding assembly 201 and a feeding grabbing assembly 202 arranged on the left and right;

[0054] The feeding assembly 201 comprises two feeding bin groups 201.1 arranged symmetrically front and back, and the feeding bin group 201.1 comprises a plurality of feeding bin bodies 201.11 sequentially distributed front and back;

[0055] The loading and grabbing assembly 202 comprises a four-axis loading robot 202.1 fixedly arranged on the workbench 100, the four-axis loading robot 202.1 is connected with a loading bracket 202.2, the bottom of the loading bracket 202.2 is fixedly connected with a loading base plate 202.3, the loading base plate 202.3 is rotatably connected with a horizontally arranged rotating shaft 202.4, the rotating shaft 202.4 is detachably and fixedly connected with a loading suction cup 202.5, the loading bracket 202.2 is fixedly connected with a loading base plate 202.3, and the loading base plate 202.3 is rotatably connected with a horizontally arranged rotating shaft 202.4, and the loading suction cup 202.5 is detachably and fixedly connected with the loading base plate 202.3. A first cylinder 202.6 is provided on the material bottom plate 202.3, the cylinder body of the first cylinder 202.6 is hinged to the material loading bottom plate 202.3, the piston end of the first cylinder 202.6 is hinged to the rotating shaft 202.4, the first cylinder 202.6 drives the rotating shaft 202.4 to rotate, and two limit screws 202.7 are threadedly connected to the material loading bottom plate 202.3, and the two limit screws 202.7 are respectively located above and below the material loading suction cup 202.5;

[0056] During loading, the product 500 is placed in the loading bin 201.11, and then the loading bracket 202.2 is driven to move by the four-axis loading robot 202.1, so that the loading suction cup 202.5 can be moved to the product 500, and the product 500 is adsorbed by the loading suction cup 202.5. After that, as the loading suction cup 202.5 moves, the product 500 is moved to the optical inspection mechanism 300 and stops adsorbing the product 500;

[0057] When the product 500 is a GAM lead frame with a sloped base island, after the loading suction cup 202.5 absorbs the product 500, the first cylinder 202.6 drives the rotating shaft 202.4 to rotate, so that the rotating shaft 202.4 drives the loading suction cup 202.5 to rotate to a horizontal state, that is, the product 500 rotates to a horizontal state. When the product 500 is placed on the detection mechanism, the first cylinder 202.6 drives the rotating shaft 202.4 to rotate in the opposite direction to achieve reset, that is, the loading suction cup 202.5 rotates in the opposite direction to achieve reset. During the rotation and reset of the loading suction cup 202.5, it respectively abuts against two limit screws 202.7. The two limit screws 202.7 can limit the rotation angle of the loading suction cup 202.5, so as to improve the rotation accuracy of the loading suction cup 202.5. By rotating the limit screw 202.7, the rotation angle of the loading suction cup 202.5 can be adjusted.

[0058] like Figure 5 As shown, the optical inspection mechanism 300 includes a transmission component 301, a first detection component 302 and a second detection component 303 which are arranged in sequence from left to right;

[0059] The transmission assembly 301 includes two moving boats 301.1 symmetrically arranged front and back, and the moving boats 301.1 are connected to a boat moving module 301.2, and the boat moving module 301.2 drives the moving boats 301.1 to move left and right;

[0060] The product 500 at the loading mechanism 200 is transported to the moving boat 301.1, and then the moving boat 301.1 is driven to move right by the boat moving module 301.2, and the product 500 is optically inspected by the first detection component 302 and the second detection component 303. After the optical inspection, the product 500 is transported to the unloading mechanism 400, and the moving boat 301.1 is driven by the boat moving module 301.2 to move in the reverse direction to achieve reset.

[0061] The first detection component 302 includes two line scan cameras 302.1 symmetrically arranged front and back, the line scan cameras 302.1 correspond to the moving boats 301.1 one by one, and the line scan cameras 302.1 are fixedly connected to the workbench 100;

[0062] When the product 500 moves to the line scan camera 302.1, the line scan camera 302.1 takes a picture of the product 500 and optically inspects its appearance, thereby achieving an optical inspection of the appearance.

[0063] The second detection assembly 303 includes two second detection units 303.1 arranged symmetrically with respect to the center, the second detection units 303.1 correspond to the mobile boat 301.1 one by one, the second detection unit 303.1 includes a size detection component 303.11 and a silver-plated detection camera 303.12 arranged on the left and right, the silver-plated detection camera 303.12 is fixedly connected to the workbench 100, and the length of the second detection unit 303.1 in the front-to-back direction is twice greater than the length of the second detection assembly 303 in the front-to-back direction;

[0064] The size detection component 303.11 includes a first size camera 303.111 and a second size camera 303.112 arranged front and back;

[0065] When the product 500 is optically inspected once and transported to the second inspection component 303, the first size camera 303.111 and the second size camera 303.112 are used to take a photo of the product 500 and optically inspect its size, wherein the second size camera 303.112 is used to optically inspect the size of the inclined base island of the product 500. In addition, the silver-plating inspection camera 303.12 is used to take a photo of the product 500 and optically inspect its silver-plating effect, thereby achieving the size and silver-plating optical inspection of the product 500;

[0066] Here, because the length of the second detection unit 303.1 in the front-to-back direction is twice greater than the length of the second detection assembly 303 in the front-to-back direction, there is an intersection between the two second detection units 303.1 in the front-to-back direction, so that the volume of the optical detection device can be reduced.

[0067] The material unloading mechanism 400 includes a material unloading grabbing assembly 401 and a material unloading assembly 402 arranged from left to right. There are two material unloading assemblies 402, and the two material unloading assemblies 402 are arranged front and back.

[0068] like Figure 6-7As shown, the material unloading and grabbing assembly 401 includes a four-axis unloading robot 401.1 fixedly arranged on the workbench 100, the four-axis unloading robot 401.1 is connected to a material unloading bracket 401.2, a first lead screw 401.3 is arranged below the unloading bracket 401.2, a first knob 401.4 is installed at one end of the first lead screw 401.3, two first nuts 401.5 are threadedly connected to the first lead screw 401.3, and the two first nuts 401.5 are arranged along the axis of the first lead screw 401.3. Symmetrically distributed, the threads of the two first nuts 401.5 are in opposite directions, two first guide rods 401.6 symmetrically arranged about the first screw 401.3 are fixedly arranged below the blanking bracket 401.2, the first guide rods 401.6 are parallel to the first screw 401.3, the first nut 401.5 is slidably connected to the first guide rod 401.6, and two clamping units 401.7 are arranged below the first screw 401.3, and the clamping units 401.7 correspond to the first nuts 401.5 one by one;

[0069] The clamping unit 401.7 comprises a clamping cylinder 401.71, the cylinder body of the clamping cylinder 401.71 is fixedly connected to the first nut 401.5, the piston end of the clamping cylinder 401.71 is fixedly connected to a clamping plate 401.72, the clamping cylinder 401.71 drives the clamping plate 401.72 to move parallel to the axis of the first screw 401.3, and the bottom of the clamping plate 401.72 is fixedly provided with two clamping claws 401.72 symmetrical about the axis of the first screw 401.3. 3. Two second guide rods 401.74 are arranged below the first lead screw 401.3. The second guide rods 401.74 correspond to the first guide rod 401.6 one by one. The second guide rods 401.74 are parallel to the first guide rod 401.6. The clamping plate 401.72 is slidably connected to the second guide rod 401.74. Two limit rods 401.8 distributed on the left and right are fixedly arranged below the unloading bracket 401.2. Each clamping jaw 401.73 is located between the two limit rods 401.8.

[0070] After the optical inspection of the product 500 is completed, the four-axis unloading robot 401.1 moves the clamping jaws 401.73 to the product 500, and at this time, the four clamping jaws 401.73 are distributed in a matrix on the front and back sides of the product 500. Then, the clamping cylinder 401.71 is started to move the two clamping plates 401.72 closer to each other, so that the clamping jaws 401.73 can clamp the product 500. According to calculation, the product 500 is still located between the two limit rods 401.8 at this time. Then, the four-axis unloading robot 401.1 drives the clamping jaws 401.73 to move the product 500 to the unloading assembly 402, and the clamping cylinder 401.71 drives the clamping plate 401.72 to move in the opposite direction, so that the clamping jaws 401.73 release the product 500.

[0071] Here, the role of the limit rod 401.8 is to prevent the clamping jaw 401.73 from falling during the movement of the product 500, thereby improving the stability of the movement of the product 500, and by rotating the first knob 401.4 to rotate the first screw 401.3, the two first nuts 401.5 can drive the two clamping plates 401.72 on the first guide rod 401.6 to move closer or farther, and the distance between the clamping jaws 401.73 can be adjusted according to the size of the product 500. Through the cooperation between the first nut 401.5 and the first guide rod 401.6, the movement of the first nut 401.5 is guided, and through the cooperation between the clamping plate 401.72 and the second guide rod 401.74, the movement of the clamping plate 401.72 is guided.

[0072] The unloading assembly 402 includes a waste unloading unit 402.1, a good product unloading unit 402.2 and a paper separation conveying unit 402.3 which are arranged in sequence from left to right;

[0073] like Figure 8 As shown, the waste unloading unit 402.1 includes a waste collecting slide rail 402.11 fixedly arranged on the workbench 100, the waste collecting slide rail 402.11 is parallel to the front-rear direction, a waste bin 402.12 is slidably connected to the waste collecting slide rail 402.11, and a handle 402.13 is fixedly arranged on the waste bin 402.12;

[0074] When the product 500 is detected as unqualified, the product 500 clamped by the clamp 401.73 is placed in the scrap bin 402.12. When the product 500 in the scrap bin 402.12 needs to be removed, the staff pulls the handle 402.13 to move the scrap bin 402.12 on the scrap collecting slide rail 402.11, thereby adjusting the position of the scrap bin 402.12 to facilitate the removal of the product 500 in the scrap bin 402.12.

[0075] like Figure 9-12As shown, the good product unloading unit 402.2 includes a fixed plate 402.21 fixedly arranged horizontally above the workbench 100, a plurality of transmission tracks 402.22 arranged in sequence front to back are arranged below the fixed plate 402.21, a lifting plate 402.23 is arranged between two adjacent transmission tracks 402.22, and each lifting plate 402.23 is driven to rise and fall by a lifting module 402.24, a material drop opening 402.25 is arranged on the fixed plate 402.21, and two baffles 402.26 arranged symmetrically on the left and right are penetrated in the material drop opening 402.25, and the lifting plate 402.23 is located between the two baffles 402.26, and two good product receiving slide rails 402.27 are fixedly arranged on the top of the fixed plate 402.21 in the front and back directions, and the good product receiving slide rails 402.27 are parallel to the left and right directions, Two receiving slide blocks 402.28 corresponding to the two good product receiving slide rails 402.27 are fixedly provided at the bottom of the baffle 402.26, and the receiving slide blocks 402.28 are installed on the good product receiving slide rails 402.27. A second lead screw 402.29 is threadedly connected to the baffle 402.26, and the second lead screw 402.29 is rotatably connected to the fixed plate 402.21. A second knob 402.210 is installed at one end of the second lead screw 402.29. Two buffer components 402.211 are arranged above the fixed plate 402.21, and the buffer components 402.211 correspond to the baffle 402.26 one by one. The two baffles 402.26 are located between the two buffer components 402.211, and the lifting plate 402.23 is located below the buffer component 402.211;

[0076] The buffer component 402.211 includes two material receiving buffer plates 402.2111 distributed up and down, and the material receiving buffer plates 402.2111 are connected to a second cylinder 402.2112, and the second cylinder 402.2112 drives the material receiving buffer plates 402.2111 to move left and right, and a plurality of buffer rods 402.2113 evenly distributed front and back are fixedly arranged on one side of the material receiving buffer plates 402.2111 close to the baffle plate 402.26, and the buffer rods 402.2113 move through the baffle plate 402.26;

[0077] A third lead screw 402.212 and a limiting slide rail 402.213 are provided below the fixed plate 402.21. The third lead screw 402.212 is parallel to the front-rear direction. The limiting slide rail 402.213 is parallel to the third lead screw 402.212. The limiting slide rail 402.213 is fixedly connected to the fixed plate 402.21. The third lead screw 402.212 is rotatably connected to the fixed plate 402.21. A third knob 402.214 is installed on the third lead screw 402.212. The third lead screw 402.212 is threadedly connected with two limit posts 402.215, the threads of the two limit posts 402.215 are in opposite directions, and the two limit posts 402.215 are symmetrically spaced along the axis of the third lead screw 402.212. The limit slide rail 402.213 is slidably connected with two limit sliders 402.216, and the limit sliders 402.216 correspond to the limit posts 402.215 one by one, and the limit sliders 402.216 are fixedly connected to the limit posts 402.215;

[0078] When the product 500 passes the optical inspection, the product 500 held by the clamp 401.73 moves between the two baffles 402.26 and is located above the baffle 402.26. Then, the clamp 401.73 is released, and the product 500 falls onto the buffer rod 402.2113 on the upper receiving buffer plate 402.2111 to achieve one-time material drop. Then, the second cylinder 402.2112 on the upper receiving buffer plate 402.2111 drives the receiving buffer plate 402.2111 to move. 1 moves, and drives the buffer rod 402.2113 on the upper material receiving buffer plate 402.2111 to separate from the product 500. At this time, the product 500 falls onto the buffer rod 402.2113 on the lower material receiving buffer plate 402.2111 to achieve secondary material dropping. The upper material receiving buffer plate 402.2111 is reset by the first cylinder 202.6, which drives the buffer rod 402.2113 on the upper material receiving buffer plate 402.2111 to reset. When the lower buffer rod When the number of products 500 on 402.2113 reaches the set number, the second cylinder 402.2112 drives the lower material receiving buffer plate 402.2111, and drives the lower buffer rod 402.2113 to move synchronously and separate from the product 500. At this time, the product 500 falls onto the lifting plate 402.23 by gravity, realizing three times of dropping. Then, the second cylinder 402.2112 drives the lower material receiving buffer plate 402.2111 to reset, so that the lifting plate 402.23 is lifted. Products 500 are intermittently added to the plate 402.23. When the number of products 500 on the lifting plate 402.23 reaches a set number, the lifting plate 402.23 is lowered by the lifting module 402.24. As the lifting plate 402.23 is lowered, the products 500 on the lifting plate 402.23 are placed on the transmission track 402.22. At this time, the transmission track 402.22 moves through the driving device connected thereto, thereby driving the products 500 to move, so that the staff can take them out easily.

[0079] When the distance between the two baffles 402.26 needs to be adjusted according to the size of the product 500, the second knob 402.210 is rotated to rotate the second lead screw 402.29. The rotation of the second lead screw 402.29 drives the baffle 402.26 to move forward and backward. In addition, the product 500 placed between the two baffles 402.26 is also located between the two limit posts 402.215. The two limit posts 402.215 prevent the two baffles 402.26 from being moved. The displacement in the front-to-back direction, and when the distance between the two limit columns 402.215 needs to be adjusted according to the size of the product 500, the third knob 402.214 is rotated to rotate the third lead screw 402.212, which can drive the limit slider 402.216 to move on the limit rail 402.213, and at the same time drive the limit column 402.215 to move, and the cooperation between the limit slider 402.216 and the limit rail 402.213 can play the role of guiding the movement of the limit column 402.215.

[0080] like Figure 13-15 As shown, the paper separation conveying unit 402.3 includes a paper separation bin 402.31, a paper separation gripper 402.32 and two paper separation moving modules 402.33 arranged front and back, the paper separation bin 402.31 is tiltedly arranged on the right side of the paper separation gripper 402.32, the paper separation gripper 402.32 is connected to the moving part of the paper separation moving module 402.33, the paper separation moving module 402.33 drives the paper separation gripper 402.32 to move left and right, and two baffles 402.34 arranged front and back are fixedly provided on one side of the paper separation bin 402.31;

[0081] The paper separator gripper 402.32 includes a rotating shaft 402.321, and the rotating shaft 402.321 is parallel to the front-to-back direction. The two ends of the rotating shaft are rotatably connected to the moving parts of the two paper separator moving modules 402.33 respectively. One end of the rotating shaft 402.321 is obliquely provided with a third cylinder 402.322, and the cylinder body of the third cylinder 402.322 is hinged to the moving part of one of the paper separator moving modules 402.33. The other end of the third cylinder 402.322 is hinged to the rotating shaft 402.321, and a gap is provided between the axis of the third cylinder 402.322 and the axis of the rotating shaft 402.321. A fourth cylinder 402.323 is provided at the middle end of the rotating shaft 402.321, and the cylinder body of the fourth cylinder 402.323 is fixedly provided on the rotating shaft 402.321, and a paper separation suction cup 402.324 is fixedly provided at the piston end of the fourth cylinder 402.323;

[0082] The paper separator 600 is placed in the paper separator bin 402.31, and the baffle 402.34 blocks the paper separator 600 to prevent the paper separator 600 from falling. When the paper separator 600 is sucked, the fourth cylinder 402.323 drives the paper separator suction cup 402.324 to move toward and abut against the paper separator 600. Then, the paper separator suction cup 402.324 absorbs a piece of paper separator 600. At this time, the fourth cylinder 402.323 drives the paper separator suction cup 402.324 to move toward and abut against the paper separator 600. 4 moves in the reverse direction, the paper separator suction cup 402.324 can drive a piece of paper separator 600 to move out of the paper separator bin 402.31, and the paper separator 600 is deformed when moving on the baffle 402.34, and when the paper separator 600 is separated from the baffle 402.34, it returns to its original state, and the next piece of paper separator 600 in the paper separator bin 402.31 can be prevented from falling by the baffle 402.26, so that the paper separator suction cup 402.324 can absorb a single piece of paper. The function of the paper separator 600 is then started, and the piston of the third cylinder 402.322 drives the rotating shaft 402.321 to rotate, which can drive the paper separator suction cup 402.324 to rotate, so that the paper separator suction cup 402.324 drives the adsorbed paper separator 600 to rotate, and the adsorbed paper separator 600 is located below the paper separator suction cup 402.324, and then the paper separator suction cup is moved by the paper separator moving module 402.33. After 402.324 drives the adsorbed separator 600 to move between the two baffles 402.26, the separator suction cup 402.324 releases the separator 600, causing the separator 600 to fall onto the top product 500 between the two baffles 402.26. When the product 500 is input between the two baffles 402.26 again, the separator 600 is added again. In this way, two adjacent products 500 can be separated by the separator 600.

[0083] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. An optical inspection device, characterized in that: It comprises a workbench (100) and a loading mechanism (200), an optical inspection mechanism (300) and a unloading mechanism (400) which are arranged on the workbench (100) from left to right; The optical inspection mechanism (300) comprises a transmission component (301), a first detection component (302) and a second detection component (303) which are arranged in sequence from left to right; The transmission component (301) comprises two moving boats (301.1) arranged symmetrically front and back, and the moving boats (301.1) are connected to a boat moving module (301.2); The first detection component (302) comprises two line scan cameras (302.1) arranged symmetrically front and back, the line scan cameras (302.1) corresponding one to one with the moving boat (301.1), and the line scan cameras (302.1) are fixedly connected to the workbench (100); The second detection assembly (303) comprises two second detection units (303.1) arranged symmetrically with respect to the center, the second detection units (303.1) corresponding one to one with the movable boat (301.1), the second detection units (303.1) comprising a size detection component (303.11) and a silver-plated detection camera (303.12) arranged on the left and right, and the silver-plated detection camera (303.12) is fixedly connected to the workbench (100); The size detection component (303.11) comprises a first size camera (303.111) and a second size camera (303.112) arranged front and back; The length of the second detection unit (303.1) in the front-to-back direction is twice greater than the length of the second detection component (303) in the front-to-back direction; The feeding mechanism (200) comprises a feeding assembly (201) and a feeding grabbing assembly (202) arranged on the left and right; The loading assembly (201) comprises two loading bin groups (201.1) arranged symmetrically front and back, and the loading bin group (201.1) comprises a plurality of loading bin bodies (201.11) distributed sequentially front and back; The loading and grabbing assembly (202) comprises a four-axis loading robot (202.1) fixedly arranged on a workbench (100); the four-axis loading robot (202.1) is connected to a loading bracket (202.2); the bottom of the loading bracket (202.2) is fixedly connected to a loading base plate (202.3); the loading base plate (202.3) is rotatably connected to a horizontally arranged rotating shaft (202.4); the rotating shaft (202.4) is detachably and fixedly connected to a loading suction cup (202.5); A first cylinder (202.6) is arranged on the bottom plate (202.3); a cylinder body of the first cylinder (202.6) is hinged to the loading bottom plate (202.3); a piston end of the first cylinder (202.6) is hinged to the rotating shaft (202.4); the first cylinder (202.6) drives the rotating shaft (202.4) to rotate; two limit screws (202.7) are threadedly connected to the loading bottom plate (202.3); the two limit screws (202.7) are respectively located above and below the loading suction cup (202.5).

2. The optical inspection device according to claim 1, characterized in that: The material discharge mechanism (400) comprises a material discharge grabbing assembly (401) and a material discharge assembly (402) arranged from left to right. There are two material discharge assemblies (402), and the two material discharge assemblies (402) are arranged front to back.

3. The optical inspection device according to claim 2, characterized in that: The material unloading and grabbing assembly (401) comprises a four-axis material unloading robot (401.1) fixedly arranged on a workbench (100); a material unloading bracket (401.2) is connected to the four-axis material unloading robot (401.1); a first lead screw (401.3) is arranged below the material unloading bracket (401.2); a first knob (401.4) is installed at one end of the first lead screw (401.3); two first nuts (401.5) are threadedly connected to the first lead screw (401.3); the two first nuts (401.5) are aligned along the axis of the first lead screw (401.3) The two first nuts (401.5) are arranged in opposite directions of thread rotation; two first guide rods (401.6) symmetrically arranged about the first lead screw (401.3) are fixedly arranged below the blanking bracket (401.2); the first guide rods (401.6) are parallel to the first lead screw (401.3); the first nut (401.5) is slidably connected to the first guide rods (401.6); two clamping units (401.7) are arranged below the first lead screw (401.3); the clamping units (401.7) correspond one to one with the first nuts (401.5); The clamping unit (401.7) comprises a clamping cylinder (401.71), the cylinder body of the clamping cylinder (401.71) is fixedly connected to the first nut (401.5), the piston end of the clamping cylinder (401.71) is fixedly connected to a clamping plate (401.72), the bottom of the clamping plate (401.72) is fixedly provided with two clamping claws (401.73) symmetrical about the axis of the first lead screw (401.3), two second guide rods (401.74) are provided below the first lead screw (401.3), the second guide rods (401.74) correspond one-to-one to the first guide rod (401.6), the second guide rods (401.74) are parallel to the first guide rod (401.6), and the clamping plate (401.72) is slidably connected to the second guide rod (401.74).

4. The optical inspection device according to claim 3, characterized in that: Two limit rods (401.8) distributed left and right are fixedly arranged below the unloading bracket (401.2), and each clamping claw (401.73) is located between the two limit rods (401.8).

5. The optical inspection device according to claim 2, characterized in that: The unloading component (402) comprises a waste unloading unit (402.1), a good product unloading unit (402.2) and a paper separation conveying unit (402.3) which are arranged in sequence from left to right.

6. The optical inspection device according to claim 5, characterized in that: The waste unloading unit (402.1) comprises a waste collecting slide rail (402.11) fixedly arranged on the workbench (100), the waste collecting slide rail (402.11) being parallel to the front-rear direction, a waste bin (402.12) being slidably connected to the waste collecting slide rail (402.11), and a handle (402.13) being fixedly arranged on the waste bin (402.12).

7. The optical inspection device according to claim 5, characterized in that: The good product unloading unit (402.2) comprises a fixed plate (402.21) fixedly arranged horizontally above the workbench (100), a plurality of transmission tracks (402.22) arranged in sequence front to back are arranged below the fixed plate (402.21), a lifting plate (402.23) is arranged between two adjacent transmission tracks (402.22), and each lifting plate (402.23) is driven to rise and fall by a lifting module (402.24). (402.21) is provided with a material drop opening (402.25), and two baffles (402.26) arranged symmetrically on the left and right are provided in the material drop opening (402.25), and the lifting plate (402.23) is located between the two baffles (402.26), and two good product receiving slide rails (402.27) are fixedly provided on the top of the fixed plate (402.21), and the good product receiving slide rails (402.27) are parallel to the left and right directions, and the baffles (402.23) are located between the two baffles (402.26). Two receiving slide blocks (402.28) corresponding to the two good product receiving slide rails (402.27) are fixedly arranged at the bottom of the plate (402.26), and the receiving slide blocks (402.28) are installed on the good product receiving slide rails (402.27). A second lead screw (402.29) is threadedly connected to the baffle plate (402.26), and the second lead screw (402.29) is rotatably connected to the fixed plate (402.21). The second lead screw ( A second knob (402.210) is installed at one end of the fixing plate (402.29), two buffer components (402.211) are arranged above the fixing plate (402.21), the buffer components (402.211) correspond to the baffles (402.26) one by one, the two baffles (402.26) are located between the two buffer components (402.211), and the lifting plate (402.23) is located below the buffer components (402.211); The buffer component (402.211) comprises two material receiving buffer plates (402.2111) distributed up and down, the material receiving buffer plate (402.2111) is connected to a second cylinder (402.2112), the second cylinder (402.2112) drives the material receiving buffer plate (402.2111) to move left and right, a plurality of buffer rods (402.2113) evenly distributed front and back are fixedly arranged on one side of the material receiving buffer plate (402.2111) close to the baffle plate (402.26), and the buffer rods (402.2113) moveably pass through the baffle plate (402.26); A third lead screw (402.212) and a limiting slide rail (402.213) are provided below the fixed plate (402.21); the third lead screw (402.212) is parallel to the front-rear direction; the limiting slide rail (402.213) is parallel to the third lead screw (402.212); the limiting slide rail (402.213) is fixedly connected to the fixed plate (402.21); the third lead screw (402.212) is rotatably connected to the fixed plate (402.21); and a third knob (402.214) is installed on the third lead screw (402.212). The third lead screw (402.212) is threadedly connected with two limit columns (402.215), the thread rotation directions of the two limit columns (402.215) are opposite, the two limit columns (402.215) are symmetrically spaced along the axis of the third lead screw (402.212), and the limit slide rail (402.213) is slidably connected with two limit sliders (402.216), the limit sliders (402.216) correspond to the limit columns (402.215) one by one, and the limit sliders (402.216) are fixedly connected to the limit columns (402.215).

8. The optical inspection device according to claim 5, characterized in that: The paper separation conveying unit (402.3) comprises a paper separation bin (402.31), a paper separation gripper (402.32) and two paper separation moving modules (402.33) arranged front and back, the paper separation bin (402.31) is tiltedly arranged on the right side of the paper separation gripper (402.32), the paper separation gripper (402.32) is connected to the moving part of the paper separation moving module (402.33), and one side of the paper separation bin (402.31) is fixedly provided with two blocking plates (402.34) arranged front and back; The paper separator gripper (402.32) includes a rotating shaft (402.321), the rotating shaft (402.321) is parallel to the front-back direction, the two ends of the rotating shaft (402.321) are respectively rotatably connected to the moving part of the paper separator moving module (402.33), one end of the rotating shaft (402.321) is obliquely provided with a third cylinder (402.322), the cylinder body of the third cylinder (402.322) is hinged to the moving part of one of the paper separator moving modules (402.33), and the third cylinder (402.322) is hinged to the moving part of one of the paper separator moving modules (402.33). The other end of the cylinder (402.322) is hinged to the rotating shaft (402.321), a gap is provided between the axis of the third cylinder (402.322) and the axis of the rotating shaft (402.321), a fourth cylinder (402.323) is provided at the middle end of the rotating shaft (402.321), a cylinder body of the fourth cylinder (402.323) is fixedly provided on the rotating shaft (402.321), and a paper spacer suction cup (402.324) is fixedly provided at the piston end of the fourth cylinder (402.323).

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