Vision-based material body face detection system

Abstract

The application discloses a kind of material main surface detection systems based on vision, it includes: carrier flow channel;Detection station group, including first detection station, second detection station and sorting station;First detection module, including first camera component and first transfer device and first grabbing component, first transfer device is used to drive first grabbing component and make the bottom surface of material exposed to the field of view of first camera component from carrier remove;Second detection module, including second transfer device and second camera component, second transfer device is used to drive second camera component and move to the top of carrier;Sorting module is set according to sorting station, is configured as according to detection result removes abnormal material from carrier. Above-mentioned material main surface detection system, without overall turning over carrier, can smoothly complete double-sided detection in flow channel transmission process, greatly simplifies detection process, significantly improves the detection output of unit time.

Description

Technical Field

[0001] This invention relates to the field of automatic surface inspection technology for electronic components, and in particular to a vision-based material body surface inspection system. Background Technology

[0002] After the manufacturing of chips (ICs) or electronic components is completed, in order to ensure product yield and reliability, in addition to electrical performance testing, rigorous visual inspection is also required. Visual inspection is mainly used to identify physical defects on the chip surface, such as cracks, chips, scratches, dirt, and pin deformation, and to remove defective products (NG products) that do not meet the requirements, while collecting or packaging good products that meet the requirements into the material tape.

[0003] In existing automated production lines, materials to be inspected (such as chips) are typically carried in an array of grooves on a tray for circulation. While this method facilitates batch transport, it also presents challenges for comprehensive visual inspection. Specifically:

[0004] First, when a chip is placed in a tray, its top surface is exposed and easily inspected by a camera above. However, the bottom surface of the chip is attached to the bottom of the tray's recesses, placing it in a blind spot. Traditional methods for inspecting the bottom surface may require manually flipping the chip or using a complex flipping mechanism to flip the entire tray, which is not only inefficient but also increases the risk of damage to the chip during the flipping process.

[0005] Secondly, existing testing equipment often has limited functionality, such as only being able to perform top surface inspection, or requiring the material to be transferred to a specific glass tray before bottom surface inspection can be performed. This means that completing both top and bottom surface inspection may require multiple devices connected in series, or complex multiple transfers within the same device, resulting in a large production line footprint, high equipment costs, and low material flow efficiency.

[0006] Therefore, a new testing mechanism for inspecting the surface of materials needs to be designed. Summary of the Invention

[0007] The purpose of this invention is to provide a vision-based material body surface detection system that can simultaneously and efficiently detect the top and bottom surfaces of materials carried in a carrier, and automatically sort them according to the detection results.

[0008] To achieve the above objectives, the present invention provides a vision-based material body surface detection system, comprising:

[0009] The carrier flow channel is used to carry and transport carriers containing materials to be tested between different workstations;

[0010] The inspection station group is set along the path of the carrier flow channel, including a first inspection station, a second inspection station, and a sorting station;

[0011] The first detection module, corresponding to the first detection station, includes a first camera component, a first transfer device, and a first gripping component slidably connected to the first transfer device. The first transfer device is used to drive the first gripping component to remove the material from the carrier and expose the bottom surface of the material to the field of view of the first camera component.

[0012] The second detection module, corresponding to the second detection station, includes a second transfer device and a second camera assembly slidably connected to the second transfer device. The second transfer device is used to drive the second camera assembly to move above the carrier so that the second camera assembly can acquire an image of the top surface of the material in the carrier.

[0013] The sorting module, corresponding to the sorting station, is configured to remove abnormal materials from the carrier based on the detection results.

[0014] Preferably, the sorting module includes a third transfer device, a third gripping component slidably connected to the third transfer device, and a buffer platform disposed next to the sorting station;

[0015] The third transfer device is configured to drive the third gripping component to move between the carrier and the buffer platform to transfer the abnormal material from the carrier in the sorting station to the buffer carrier on the buffer platform.

[0016] Preferably, the cache platform is further provided with a replenishment carrier containing good products, and the third transfer device is further configured to drive the third gripping component to grip the good product material from the replenishment carrier and transfer the good product material to the empty space left after the abnormal material is removed from the carrier in the sorting station.

[0017] Preferably, the inspection station group also includes a waiting station located after the sorting station, and the inspection system also includes a carrier transport device corresponding to the waiting station.

[0018] The vehicle transport device includes a fourth transfer device and a fourth gripping component connected to the fourth transfer device;

[0019] The buffer platform includes a fifth transfer device and a first tray slidably connected to the fifth transfer device. The first tray is used to place the buffer carrier and the replenishment carrier. The fifth transfer device is configured to drive the first tray to move between the sorting station and the waiting station.

[0020] The fourth transfer device is configured to drive the fourth gripping component to move the carrier in the waiting station, where all the materials are good products, to the first pallet as the replenishment carrier.

[0021] Preferably, a third camera component is also provided above the waiting station. The third camera component is configured to capture images of the carrier at the waiting station in order to detect whether there is any abnormality in the material in the carrier.

[0022] Preferably, the carrier flow channel includes a frame extending along the material conveying direction, and a transfer trolley is provided within the frame. The transfer trolley is configured to move within the frame to drive the carrier to flow between workstations.

[0023] Preferably, it also includes a loading station located at the beginning of the carrier flow channel, with first support blocks pivotally connected to both sides of the frame at the loading station, and a first lifting platform provided inside the frame, the first lifting platform having space for the transfer trolley to shuttle.

[0024] The first support block has a closed state in which it extends into the frame to support the carrier, and an open state in which it disengages from the internal space of the frame to release the carrier.

[0025] The first lifting platform is configured to lift the carrier on the first support block through lifting and lowering movements, and in conjunction with the opening and closing movements of the first support block, separate the lowest layer carrier and place it on the transfer trolley.

[0026] Preferably, the loading station is further provided with a power mechanism for driving the first support block to rotate, the power mechanism including a first telescopic drive component, a push plate, a connecting block and a connecting shaft;

[0027] The output end of the first telescopic drive component is connected to the push plate, the push plate is pivotally connected to one end of the connecting block, and the other end of the connecting block is fixedly connected to the connecting shaft;

[0028] The connecting block has a narrow, elongated slot. The connecting block is fixed to the frame by a pin that passes through the slot. When the connecting block is pushed by the push plate, it can swing relative to the pin, thereby causing the connecting block to rotate around the axis of the connecting shaft.

[0029] Preferably, it also includes a feeding station located at the end of the carrier flow channel, wherein the frame at the feeding station is pivotally connected to the two sides of the frame with second support blocks, the second support blocks having a closed state extending into the frame to support the carrier, and an open state disengaging from the internal space of the frame to release the carrier.

[0030] The frame is provided with a second lifting platform, and the second lifting platform has space for the transfer trolley to shuttle.

[0031] The second lifting platform is configured to lift the vehicle on the transfer trolley upwards by a lifting motion, so as to place the vehicle on the second support block.

[0032] Preferably, the frame is provided with a mounting groove, the second support block is located in the mounting groove, the second support block includes a connecting part and a supporting part, the connecting part is pivotally connected to the mounting groove via a pivot shaft provided on the side wall of the mounting groove, so that the supporting part can rotate up and down, and an elastic element is also provided between the supporting part and the side wall of the mounting groove, the elastic element is used to provide the second support block with an elastic restoring force that is always in a closed state.

[0033] Preferably, the transfer trolley includes a transferor and a vehicle body mounted on the transferor. The vehicle body is provided with a second pallet for carrying the vehicle and claws at both ends of the second pallet. The vehicle body is also provided with a telescopic drive for driving the claws to open and close, so as to fix or release the vehicle.

[0034] Preferably, it also includes a tape-and-reel device that docks with the sorting station, the tape-and-reel device being used to load materials with good inspection results into the carrier tape;

[0035] The tape feeding device includes a support panel, on which a carrier tape flow channel for conveying carrier tape is provided. One end of the carrier tape flow channel is a feeding station, and the other end of the carrier tape flow channel is a receiving station.

[0036] The feeding station of the carrier flow channel is connected to the sorting station of the carrier flow channel. Corresponding to the sorting station and the receiving station, a sixth transfer device and a sixth gripping assembly slidably connected to the sixth transfer device are also provided. The sixth transfer device is configured to drive the sixth gripping assembly to transfer the material that has been detected as good in the carrier at the sorting station to the carrier at the feeding station.

[0037] The tape feeding device also includes a feeding mechanism disposed below the support panel, a film feeding mechanism disposed above the support panel, a hot pressing mechanism disposed on the carrier tape flow channel between the feeding station and the take-up station, and a winding mechanism disposed at the take-up station.

[0038] The feeding mechanism is used to provide carrier tape to the carrier tape flow channel;

[0039] The film supply mechanism is used to cover the carrier tape with a cover film;

[0040] The hot-pressing mechanism is used to heat-fuse the cover film and the carrier tape together;

[0041] The winding mechanism is used to wind the hot-pressed strip into a roll.

[0042] Preferably, the tape feeding device is mounted on a fixed carrier via a bracket; two carrier tape channels are arranged in parallel on the support panel, and each carrier tape channel is further equipped with a set of feeding mechanism, film feeding mechanism, hot pressing mechanism and winding mechanism;

[0043] The bracket is slidably connected to the fixed carrier, and the fixed carrier is also provided with a driver connected to the bracket. The driver is used to drive the bracket to move along a preset trajectory so that the two carrier channels can alternately dock with the sorting station.

[0044] Compared to existing technologies, the material body surface inspection system provided by the above technical solution, by setting up a first inspection station and a second inspection station on the same carrier flow channel, inspects the bottom and top surfaces of the material respectively. The first inspection module can grab and remove the material from the carrier, exposing its bottom surface to the field of view. This design breaks the limitation of the bottom surface being invisible in traditional carrier inspection, eliminating the need to flip the entire carrier or transfer the material to a specific glass tray, and smoothly completing double-sided inspection during the flow channel transport, greatly simplifying the inspection process. In addition, this system adopts an assembly line-style station layout. The second inspection module can quickly scan the top surface of the material in the carrier, while the first inspection module specifically grabs the material to inspect the bottom surface. The stations work in sequence and collaboratively, and all inspection steps are completed as the material flows in the flow channel, significantly improving the inspection output per unit time. Attached Figure Description

[0045] Figure 1 This is a three-dimensional structural diagram of the material body surface detection system in one of the embodiments of the present invention from one perspective.

[0046] Figure 2 for Figure 1 Top view.

[0047] Figure 3 This is a three-dimensional structural diagram of the material body surface detection system in an embodiment of the present invention from another perspective.

[0048] Figure 4 This is a three-dimensional structural diagram of the carrier flow channel in an embodiment of the present invention.

[0049] Figure 5 This is a three-dimensional structural diagram of the first detection module in an embodiment of the present invention.

[0050] Figure 6This is a three-dimensional structural diagram of the second detection module in an embodiment of the present invention.

[0051] Figure 7 This is a three-dimensional structural diagram of the sorting and grasping mechanism in an embodiment of the present invention.

[0052] Figure 8 This is a three-dimensional structural diagram of the vehicle transport device in an embodiment of the present invention.

[0053] Figure 9 This is a three-dimensional structural diagram of the caching platform in an embodiment of the present invention.

[0054] Figure 10 This is a diagram of the tape feeding and gripping mechanism in an embodiment of the present invention.

[0055] Figure 11 This is a three-dimensional structural diagram of the transfer trolley in an embodiment of the present invention.

[0056] Figure 12 This is a three-dimensional structural diagram of the loading station of the carrier flow channel in an embodiment of the present invention, viewed from one perspective.

[0057] Figure 13 For the first support block along Figure 12 Cross-sectional view along the AA direction.

[0058] Figure 14 This is a three-dimensional structural diagram of the loading station of the carrier flow channel in an embodiment of the present invention, viewed from another perspective.

[0059] Figure 15 This is an installation structure diagram of the lifting platform in an embodiment of the present invention.

[0060] Figure 16 This is a three-dimensional structural diagram of the material unloading station in the carrier flow channel of an embodiment of the present invention.

[0061] Figure 17 For the second support block along Figure 16 Cross-sectional view along the BB direction.

[0062] Figure 18 This is a three-dimensional structural diagram of the tape-tapping device in an embodiment of the present invention.

[0063] Figure 19 for Figure 18 Distribution structure diagram of the flow channel in the mid-load belt.

[0064] Figure 20 for Figure 18 Diagram of the load-bearing structure of the braided belt device. Detailed Implementation

[0065] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0066] This embodiment provides a vision-based material body surface inspection system, which is mainly used to inspect the appearance defects of electronic components such as chips (hereinafter collectively referred to as materials).

[0067] like Figures 1 to 4 As shown, the detection system mainly includes a carrier flow channel 10, a detection station group, a first detection module 50, a second detection module 60, and a sorting module.

[0068] The carrier flow channel 10 is used to carry and transport carriers containing materials to be tested between different workstations. The carrier flow channel 10 constitutes the main material flow line of the system, and the materials are usually arranged in a matrix within the carriers.

[0069] The inspection station group is arranged sequentially along the path of the carrier flow channel 10, mainly including a first inspection station 41, a second inspection station 42, and a sorting station 43. In this embodiment, the material flow direction is set to flow from the first inspection station 41 to the sorting station 43, but the physical order of the first inspection station 41 and the second inspection station 42 can be adjusted according to the actual layout. It is generally recommended to perform bottom surface inspection (first inspection station 41) first and then top surface inspection (second inspection station 42).

[0070] First detection module 50, such as Figure 5 The first detection module 50 is set up corresponding to the first detection station 41 and is specifically used to detect the bottom surface of the material. The first detection module 50 includes a first camera component 51 (such as an industrial camera and light source combination), a first transfer device 52, and a first gripping component 53 slidably connected to the first transfer device 52.

[0071] The first camera assembly 51 is typically located on the outside of the carrier flow channel 10. The first transfer device 52 (such as a linear module or a multi-axis robotic arm) is horizontally mounted to drive the first gripping assembly 53 to reciprocate between the carrier and the first camera assembly 51.

[0072] When the carrier stops at the first inspection station 41, the first transfer device 52 drives the first gripping component 53 to descend and grip the material from the groove of the carrier; then, the first transfer device 52 moves the gripping component 53 with the material to the lens of the first camera component 51, so that the bottom surface of the material is exposed to the field of view of the first camera component 51 for shooting; after the shooting is completed, the material is put back into the original position of the carrier.

[0073] This solves the problem of the bottom surface of the material in the vehicle being in a blind spot, and the bottom surface can be inspected without flipping the entire vehicle.

[0074] The second detection module 60, such as Figure 6A second inspection module 60 is set up corresponding to the second inspection station 42 and is specifically used to inspect the top surface of the material. The second inspection module 60 includes a second transfer device 61 and a second camera assembly 62 slidably connected to the second transfer device 61.

[0075] Unlike the "material transfer" of the first detection module 50, the second detection module 60 adopts the "camera transfer" method. The second transfer device 61 is mounted above the flow channel and drives the second camera assembly 62 to move in the horizontal plane (X-axis or XY-axis) and vertical direction (Z-axis).

[0076] When the carrier stops at the second inspection station 42, the second transfer device 61 drives the second camera assembly 62 to move above the carrier to scan and photograph the materials in the carrier one by one or in a region to obtain an image of the top surface of the materials.

[0077] Because the top surface is directly exposed, moving the camera for "flying shots" or stepping shots is more efficient, and unnecessary material grabbing actions are avoided, reducing the risk of material damage.

[0078] The sorting module is set up corresponding to sorting station 43. This sorting module is connected to the control system and is configured to remove abnormal materials (NG products) from the carrier based on the comprehensive detection results of the first detection station 41 and the second detection station 42 (such as defects on the top or bottom surface).

[0079] Another embodiment, such as Figure 3 and Figure 7 The sorting module includes a third transfer device 71, a third gripping component 72 slidably connected to the third transfer device 71, and a buffer platform set next to the sorting station 43.

[0080] In this embodiment, the buffer platform is located on one side of the carrier flow channel 10, and the buffer platform is provided with an area for placing buffer carriers (such as waste trays).

[0081] When the carrier arrives at sorting station 43, the system controls the third transfer device 71 to drive the third gripping component 72 to move, based on the previously recorded detection results (coordinates of good / defective products) of each material in the carrier. The third gripping component 72 moves above the carrier, accurately picks up or grabs the materials marked as abnormal, and then moves above the buffer platform to place the abnormal materials into the buffer carrier.

[0082] This embodiment achieves online automated separation of defective products, ensuring that the carriers on the flow channel are free of defective products after processing.

[0083] Furthermore, in addition to placing a buffer carrier for receiving waste materials, a replenishment carrier containing good products is also provided on the buffer platform (the replenishment carrier can be a tray that has been pre-confirmed to contain only good products).

[0084] In this embodiment, the third transfer device 71 is configured to perform bidirectional operation. After the abnormal material is removed from the carrier at the sorting station 43, an empty space will appear in the carrier. At this time, the third transfer device 71 drives the third gripping component 72 to move to the replenishment carrier on the buffer platform, grips a good material, and then returns to the sorting station 43 to fill the empty space with the good material.

[0085] This embodiment ensures that the carrier leaving the sorting station 43 is not only free of defective products but also full of them through a closed-loop operation of "removing NG products and refilling with good products", which facilitates subsequent packaging or shipment statistics.

[0086] Another embodiment, such as Figure 3 , Figure 4 and Figure 8 The inspection station group also includes a waiting station 44 after the sorting station 43. The system is also equipped with a carrier transport device, including a fourth transfer device 76 and a fourth gripping component 77 mounted on the buffer platform and the waiting station 44.

[0087] At the same time, such as Figure 9 The caching platform itself has dynamic adjustment capabilities, including a fifth transfer device 73 and a first tray 74 slidably connected to the fifth transfer device 73.

[0088] In response, when the system starts up or the replenishment carrier runs out of material, the fourth transfer device 76 drives the fourth gripping component 77 to move the carrier that has detected all good products or the carrier that has detected defective products from the waiting station 44 to the first pallet 74 on the buffer platform for use as a replenishment carrier.

[0089] The fifth transfer device 73 drives the first pallet 74 to move between the sorting station 43 and the waiting station 44, so that the third gripping component 72 can easily pick up materials from the replenishment carrier, or facilitate the fourth gripping component 77 to change carriers.

[0090] This embodiment enables automatic updates of the material replenishment source, eliminating the need for frequent manual intervention in replenishing materials on the cache platform.

[0091] Furthermore, a third camera component 78 is installed directly above the waiting station 44 (e.g., Figure 3 ).

[0092] When the carrier moves to the waiting station 44 after sorting and replenishment, or when a new carrier enters the waiting station 44 to be transported to the buffer platform, the third camera component 78 takes a picture of the entire carrier to detect whether there are any abnormalities in the material in the carrier, such as product overflow, missing, overlapping, tilting, etc., to prevent improper material placement caused by robot operation errors.

[0093] Another embodiment, such as Figure 4 and Figure 11 The carrier flow channel 10 includes a frame 11 (such as two oppositely arranged side plates) extending along the material conveying direction, and a transfer trolley 12 is provided inside the frame 11.

[0094] The transfer trolley 12 is configured to move along the flow path within the frame 11. It is responsible for receiving carriers and transporting them stepwise or point-to-point between the first inspection station 41, the second inspection station 42, the sorting station 43, and the waiting station 44. In this embodiment, one transfer trolley 12 can be used, or multiple transfer trolleys 12 can be used in a relay configuration.

[0095] Compared to conveyor belts, the transfer trolley 12 has higher positioning accuracy, ensuring that the carrier accurately stops at each inspection station, meeting the high precision requirements of visual inspection.

[0096] Furthermore, such as Figure 4 as well as Figures 12 to 15 At least two (usually four, distributed at the four corners) first support blocks 81 are pivotally connected to both sides of the frame 11 at the loading station 45. The frame 11 is equipped with a first lifting platform 82, which has space for the transfer trolley 12 to shuttle.

[0097] The first support block 81 has two states: closed and open.

[0098] In the closed state, the first support block 81 extends into the inside of the frame 11 to form a support surface for supporting the stacked test vehicles.

[0099] In the open state, the first support block 81 flips outward to disengage from the internal space of the frame 11, releasing the vertical passage of the vehicle.

[0100] Based on this, in the detection process, one vehicle can be separated from the stacked vehicle pile and moved forward one by one. The process of separating the vehicles is as follows:

[0101] 1. A stack of vehicles is manually placed on the first support block 81, which is in a closed state.

[0102] 2. The first lifting platform 82 rises, supports the entire stack of vehicles, and lifts them upward, causing the vehicles to detach from the first support block 81.

[0103] 3. The first support block 81 is switched to the open state.

[0104] 4. The first lifting platform 82 descends until the bottommost vehicle is below the first support block 81, and the second to last vehicle corresponds to the height of the first support block 81.

[0105] 5. The first support block 81 switches back to the closed state and is inserted under the second-to-last layer of the vehicle.

[0106] 6. The first lifting platform 82 continues to descend, the bottommost vehicle is separated and placed on the transfer trolley 12 below, and the remaining vehicles are intercepted by the first support block 81.

[0107] This enables automated stack loading and single-disc output, significantly improving material loading efficiency.

[0108] Furthermore, the loading station 45 is also equipped with a power mechanism for driving the first support block 81 to rotate. The power mechanism includes a first telescopic drive component 83 (such as a cylinder), a push plate 84, a connecting block 85, and a connecting shaft 86.

[0109] The connecting shaft 86 is fixedly connected to the first support block 81 and rotatably mounted on the frame 11. One end of the connecting block 85 is fixed to the connecting shaft 86, and the other end has a narrow through slot 87. The push plate 84 is connected to the first telescopic drive member 83 and pivotally connected to the connecting block 85.

[0110] The connecting block 85 is positioned on the frame 11 by a pin 88 passing through the through slot 87. When the first telescopic drive member 83 pushes the push plate 84 in a linear motion, a thrust is applied to the connecting block 85. By means of the narrow through slot 87, the upper end of the connecting block 85 swings relative to the pin 88. This swing is converted into rotation about the axis of the connecting shaft 86, thereby causing the connecting shaft 86 to rotate, which in turn causes the first support block 81 to flip (open / close).

[0111] This mechanism utilizes a pin-and-groove connection to convert linear drive into reliable tilting motion, resulting in a compact structure and rapid operation.

[0112] In addition, such as Figures 15 to 17 The frame 11 at the unloading station 46 is pivotally connected to the two sides of the second support block 91, and the frame 11 is equipped with a second lifting platform 92.

[0113] The second support block 91 also has a closed state for supporting the carrier and an open state for releasing the carrier. The second lifting platform 92 is configured to lift the carrier from below when the transfer trolley 12 transports the processed carrier to the unloading station 46, thereby stacking the carrier on the second support block 91.

[0114] The stacking process is as follows:

[0115] 1. The transfer trolley 12 transports the carrier to the unloading station 46.

[0116] 2. The second lifting platform 92 rises to lift the vehicle.

[0117] 3. When the vehicle touches the second support block 91 during its upward movement, the second support block 91 is passively flipped open (to make way).

[0118] 4. After the vehicle passes the second support block 91, the second support block 91 returns to the closed state.

[0119] 5. The second lifting platform 92 descends, and the vehicle lands on the second support block 91.

[0120] 6. Repeat the above process, and the subsequent vehicles will lift up the previous vehicle, thereby forming a vehicle stack on the second support block 91.

[0121] Specifically, the frame 11 is provided with a mounting groove 93, and the second support block 91 is located in the mounting groove 93. The second support block 91 includes a connecting part 911 and a supporting part 912, and the connecting part 911 is connected by a pivot shaft 94.

[0122] An elastic element 913 (such as a compression spring) is provided between the support 912 and the side wall of the mounting groove 93. The elastic element 913 provides a constant biasing force, so that the second support block 91 is in the closed state by default.

[0123] As the carrier rises from bottom to top, the edge of the carrier exerts an upward thrust on the second support block 91, overcoming the spring force to open it; after the carrier passes, the spring force causes it to quickly spring back and close, thus supporting the falling carrier. This design eliminates the need for an additional power source to drive the unloading support block, simplifying the control logic.

[0124] Furthermore, such as Figure 11 The transfer trolley 12 includes a transfer device 120 (such as a linear motor module or a belt module) and a vehicle body 124 mounted on the transfer device 120.

[0125] The vehicle body 124 is provided with a second pallet 121 for placing the vehicle. The front and rear ends of the second pallet 121 are respectively provided with claws 122 and equipped with a second telescopic drive component 123 (such as a small cylinder).

[0126] When the vehicle is placed on the vehicle body 124, the drive component drives the pawl 122 to close, hooking or abutting the edge of the vehicle to prevent the vehicle from shifting during high-speed movement.

[0127] When loading or unloading materials, the chuck 122 opens, releasing the restraint on the carrier.

[0128] Another embodiment, such as Figures 18 to 20 The detection system of the present invention also includes a tape-making device 200, which is used to directly package good quality materials into tape rolls.

[0129] The tape feeding device 200 includes a support panel 201, on which a carrier tape flow channel 202 for conveying carrier tape is provided. One end of the carrier tape flow channel 202 is a feeding station 203, and the other end of the carrier tape flow channel 202 is a receiving station 204.

[0130] The feeding station 203 of the carrier flow channel 202 is connected to the sorting station 43 of the carrier flow channel 10. Corresponding to the sorting station 43 and the receiving station 204, a sixth transfer device 30 and a sixth gripping assembly 31 slidably connected to the sixth transfer device 30 are also provided (e.g., Figure 2 and Figure 10 The sixth transfer device 30 is configured to drive the sixth gripping assembly 31 to transfer the material that has been detected as good in the carrier located at the sorting station 43 to the carrier belt at the feeding station 203.

[0131] The tape feeding device 200 also includes a feeding mechanism 205 disposed below the support panel 201, a film feeding mechanism 206 disposed above the support panel 201, a hot pressing mechanism 207 disposed on the carrier tape flow channel 202 between the feeding station 203 and the take-up station 204, and a winding mechanism 208 disposed at the take-up station 204.

[0132] The feeding mechanism 205 is used to provide carrier tape to the carrier tape flow channel 202.

[0133] Film supply mechanism 206 is used to cover the carrier belt with a cover film.

[0134] The hot pressing mechanism 207 is used to heat-fuse the cover film and the carrier tape together.

[0135] The winding mechanism 208 is used to wind the hot-pressed strip into a roll.

[0136] The working principle and operation process of the tape feeding device 200 are as follows:

[0137] 1. Material Picking and Discharging: When there are good products in the carrier at sorting station 43, the sixth transfer device 30 drives the sixth gripping component 31 to pick up a group (e.g., one, two, or three, depending on the number of grippers) of good product material from the carrier. Subsequently, the sixth gripping component 31 moves to the feeding station 203 above the carrier belt flow channel 202 and accurately places the material into the empty groove of the carrier belt.

[0138] 2. Coating and Hot Pressing: The carrier belt flow channel 202 drives the carrier belt to move forward step by step. When the carrier belt portion carrying material moves to the hot pressing mechanism 207, the film supply mechanism 206 releases a cover film to cover the carrier belt. Then, as the carrier belt enters the hot pressing mechanism 207, the hot pressing mechanism 207 actuates to heat-melt and bond the cover film to the edge of the carrier belt, thereby sealing the material inside the carrier belt.

[0139] 3. Winding: As the carrier tape flow channel 202 continues to drive, the sealed carrier tape continues to be conveyed forward and is finally wound onto the take-up reel by the winding mechanism 208 to form a finished roll.

[0140] This embodiment realizes the integrated operation of detection, sorting and tape packaging, and directly outputs material rolls that can be used by the chip mounter, which greatly improves the added value of the product and production efficiency.

[0141] Furthermore, the tape feeding device 200 is mounted on the fixed carrier 210 via a bracket 209, and two independent carrier tape channels 202 are arranged in parallel on the support panel 201. Each channel is equipped with an independent feeding mechanism 205, a film feeding mechanism 206, a hot pressing mechanism 207, and a winding mechanism 208.

[0142] The bracket 209 is slidably connected to the fixed carrier 210. The fixed carrier 210 is also provided with a driver 211 connected to the bracket 209. The driver 211 is used to drive the bracket 209 to move along a preset trajectory so that the two carrier channels 202 can alternately dock with the sorting station 43.

[0143] The working mode based on this dual-channel design is as follows:

[0144] 1. In the initial state, the carrier tape channel 202A is connected to the sorting station 43 to carry out tape taping operation.

[0145] 2. When the winding mechanism 208 of the carrier tape channel 202A is fully loaded or the consumables are exhausted, the driver 211 drives the bracket 209 to move laterally.

[0146] 3. The carrier tape flow channel 202B is aligned with the sorting station 43, seamlessly replacing the tape feeding operation.

[0147] 4. During the operation of the carrier tape flow channel 202B, the operator can change the material or unload the full roll of the carrier tape flow channel 202A, realizing material change without stopping the machine and improving the overall utilization rate of the system.

[0148] In summary, this invention discloses a material body surface detection system to automatically detect the top and bottom surfaces of materials, as well as the tape winding process, as detailed below:

[0149] Loading: Stacked carriers are manually placed into the loading station 45 of the carrier flow channel 10. The first lifting platform 82, in conjunction with the separation action of the first support block 81, places individual carriers on the transfer trolley 12.

[0150] Bottom surface inspection: The transfer trolley 12 transports the carrier to the first inspection station 41. The first transfer device 52 drives the first gripping component 53 to pick up the materials one by one or in groups, exposing the bottom surface for the first camera component 51 to take pictures, and detect pin deformation, bottom surface scratches, etc., and then put them back.

[0151] Top surface inspection: The carrier moves to the second inspection station 42. The second transfer device 61 drives the second camera assembly 62 to scan above the carrier, detecting defects such as screen printing and chipping on the top surface of the material.

[0152] Sorting and Replenishment (Mode 1): The carrier moves to sorting station 43. Based on the previous inspection results, the system controls the third transfer device 71 to remove NG products to the waste area of ​​the buffer platform, and grabs good products from the replenishment carrier to fill the empty space. Then, the fully loaded carrier is unloaded through unloading station 46.

[0153] Tape and reel (mode 2): If set to tape and reel mode, the sixth transfer device 30 will remove the good product from the carrier and place it into the tape and reel device 200 for sealing and winding.

[0154] Unloading: After sorting and replenishing, the fully qualified product carrier moves to the unloading station 46, where the second lifting platform 92 and the second support block 91 complete the automatic stacking, waiting for manual removal.

[0155] Through the combination of the above embodiments, the present invention realizes a highly integrated, fully automated material detection system with double-sided detection, self-repair (replenishment) and automatic tape-making functions.

[0156] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A vision-based material body surface detection system, characterized in that, include: The carrier flow channel is used to carry and transport carriers containing materials to be tested between different workstations; The inspection station group is set along the path of the carrier flow channel, including a first inspection station, a second inspection station, and a sorting station; The first detection module, corresponding to the first detection station, includes a first camera component, a first transfer device, and a first gripping component slidably connected to the first transfer device. The first transfer device is used to drive the first gripping component to remove the material from the carrier and expose the bottom surface of the material to the field of view of the first camera component. The second detection module, corresponding to the second detection station, includes a second transfer device and a second camera assembly slidably connected to the second transfer device. The second transfer device is used to drive the second camera assembly to move above the carrier so that the second camera assembly can acquire an image of the top surface of the material in the carrier. The sorting module, corresponding to the sorting station, is configured to remove abnormal materials from the carrier based on the detection results; the sorting module includes a third transfer device, a third gripping component slidably connected to the third transfer device, and a buffer platform disposed next to the sorting station; The third transfer device is configured to drive the third gripping component to move between the carrier and the buffer platform to transfer the abnormal material from the carrier in the sorting station to the buffer carrier on the buffer platform; The cache platform is also equipped with a replenishment carrier containing good products. The third transfer device is also configured to drive the third gripping component to grip the good product material from the replenishment carrier and transfer the good product material to the empty space left after the abnormal material is removed from the carrier in the sorting station. The inspection station group also includes a waiting station located after the sorting station, and the inspection system also includes a carrier transport device set up corresponding to the waiting station; The vehicle transport device includes a fourth transfer device and a fourth gripping component connected to the fourth transfer device; The buffer platform includes a fifth transfer device and a first tray slidably connected to the fifth transfer device. The first tray is used to place the buffer carrier and the replenishment carrier. The fifth transfer device is configured to drive the first tray to move between the sorting station and the waiting station. The fourth transfer device is configured to drive the fourth gripping component to move the carrier in the waiting station, where all the materials are good products, to the first pallet as the replenishment carrier. A third camera assembly is also installed above the waiting station. The third camera assembly is configured to capture images of the carrier at the waiting station in order to detect whether there is any abnormality in the material in the carrier.

2. The material body surface detection system according to claim 1, characterized in that, The carrier flow channel includes a frame extending along the material conveying direction, and a transfer trolley is provided inside the frame. The transfer trolley is configured to move within the frame to drive the carrier to flow between various workstations.

3. The material body surface detection system according to claim 2, characterized in that, It also includes a loading station located at the beginning of the carrier flow channel. The frame at the loading station is pivotally connected to the two sides of the frame with first support blocks. A first lifting platform is provided inside the frame, and the first lifting platform has space for the transfer trolley to shuttle. The first support block has a closed state in which it extends into the frame to support the carrier, and an open state in which it disengages from the internal space of the frame to release the carrier. The first lifting platform is configured to lift the carrier on the first support block through lifting and lowering movements, and, in conjunction with the opening and closing movements of the first support block, separate the lowest-level carrier and place it on the transfer trolley.

4. The material body surface detection system according to claim 3, characterized in that, The loading station is also equipped with a power mechanism that drives the first support block to rotate. The power mechanism includes a first telescopic drive component, a push plate, a connecting block, and a connecting shaft. The output end of the first telescopic drive component is connected to the push plate, the push plate is pivotally connected to one end of the connecting block, and the other end of the connecting block is fixedly connected to the connecting shaft; The connecting block has a narrow, elongated slot. The connecting block is fixed to the frame by a pin that passes through the slot. When the connecting block is pushed by the push plate, it can swing relative to the pin, thereby causing the connecting block to rotate around the axis of the connecting shaft.

5. The material body surface detection system according to claim 2, characterized in that, It also includes a material unloading station located at the end of the carrier flow channel. The frame at the material unloading station is pivotally connected to two sides of the frame with second support blocks. The second support blocks have a closed state that extends into the frame to support the carrier, and an open state that disengages from the internal space of the frame to release the carrier. The frame is provided with a second lifting platform, and the second lifting platform has space for the transfer trolley to shuttle. The second lifting platform is configured to lift the vehicle on the transfer trolley upwards by a lifting motion, so as to place the vehicle on the second support block.

6. The material body surface detection system according to claim 5, characterized in that, The frame is provided with a mounting slot, and the second support block is located in the mounting slot. The second support block includes a connecting part and a supporting part. The connecting part is pivotally connected to the mounting slot through a pivot shaft provided on the side wall of the mounting slot, so that the supporting part can rotate up and down. An elastic element is also provided between the supporting part and the side wall of the mounting slot. The elastic element is used to provide the second support block with an elastic restoring force that is always in a closed state.

7. The material body surface detection system according to claim 2, characterized in that, The transfer trolley includes a transferor and a vehicle body mounted on the transferor. The vehicle body is provided with a second pallet for carrying the vehicle and claws at both ends of the second pallet. The vehicle body is also provided with a telescopic drive for driving the claws to open and close, so as to fix or release the vehicle.

8. The material body surface detection system according to claim 1, characterized in that, It also includes a tape-and-reel device that docks with the sorting station, the tape-and-reel device being used to load materials that have passed the inspection into the carrier tape; The tape feeding device includes a support panel, on which a carrier tape flow channel for conveying carrier tape is provided. One end of the carrier tape flow channel is a feeding station, and the other end of the carrier tape flow channel is a receiving station. The feeding station of the carrier flow channel is connected to the sorting station of the carrier flow channel. Corresponding to the sorting station and the receiving station, a sixth transfer device and a sixth gripping assembly slidably connected to the sixth transfer device are also provided. The sixth transfer device is configured to drive the sixth gripping assembly to transfer the material that has been detected as good in the carrier at the sorting station to the carrier at the feeding station. The tape feeding device also includes a feeding mechanism disposed below the support panel, a film feeding mechanism disposed above the support panel, a hot pressing mechanism disposed on the carrier tape flow channel between the feeding station and the take-up station, and a winding mechanism disposed at the take-up station. The feeding mechanism is used to provide carrier tape to the carrier tape flow channel; The film supply mechanism is used to cover the carrier belt with a cover film; The hot-pressing mechanism is used to heat-fuse the cover film and the carrier tape together; The winding mechanism is used to wind the hot-pressed strip into a roll.

9. The material body surface detection system according to claim 8, characterized in that, The tape feeding device is mounted on a fixed frame via a bracket; two carrier tape channels are arranged in parallel on the support panel, and each carrier tape channel is also equipped with a set of feeding mechanism, film feeding mechanism, hot pressing mechanism and winding mechanism; The bracket is slidably connected to the fixed carrier, and the fixed carrier is also provided with a driver connected to the bracket. The driver is used to drive the bracket to move along a preset trajectory so that the two carrier channels can alternately dock with the sorting station.

Images