Chip tray stack detection apparatus

Abstract

The application discloses a kind of chip tray stacking detection devices, and the application relates to chip detection technical field.The chip tray stacking detection device, including body, detection mechanism, light shielding mechanism, detection mechanism includes hydraulic cylinder and controller, the telescopic end of hydraulic cylinder is fixedly installed with linear driver, the output end of linear driver is fixedly installed with laser detector, the bottom of linear driver is fixedly connected with rectangular pressure frame, the bottom of laser detector is installed with camera, the side of rectangular pressure frame surface is equipped with round hole, light shielding mechanism includes telescopic damper and light shielding shell, the bottom of the surface of light shielding shell is equipped with feed gap, the side of light shielding shell away from feed gap is equipped with discharge gap, the inner side of light shielding shell is fixedly connected with rectangular elastic cover, the side of the top of light shielding shell is fixedly connected with guide rod, reaches the purpose of anti-reflection, can adjust height, and shading, and weaken inner wall secondary reflection, reduce external interference, accurate detection.

Description

Technical Field

[0001] This invention relates to the field of chip testing technology, and in particular to a chip tray stacking testing device. Background Technology

[0002] With the development of informatization and digitalization in various industries, the application of chips is increasing. In the back-end processes of semiconductor factories, chip trays containing multiple chips are stacked together. These stacked chip trays are then tightly bound together in a packaging machine using plastic strapping to form a chip tray stack, which is then shipped to the user. However, before being shipped to the user, the chips in the trays need to be inspected, thus requiring the use of inspection equipment.

[0003] For example, a chip tray stacking detection device, as disclosed in Chinese Patent Publication No. CN218884894U, includes a placement frame and a detection component. The placement frame has two corresponding moving components installed on its left and right sides, and an adjustment component installed inside. The detection component includes an infrared rangefinder, connecting strips, and a pressing plate. A mounting hole is provided in the center of the upper side of the placement frame, and the infrared rangefinder is installed inside the mounting hole. Two corresponding strip-shaped openings are provided on the left and right sides of the placement frame, and connecting strips are slidably connected inside the strip-shaped openings. A pressing plate is fixed between the two connecting strips, and the pressing plate corresponds to the infrared rangefinder. The infrared rangefinder is bidirectionally electrically connected to an external PLC controller. The thickness of the stacked chip trays is detected by setting a detection component. The chip trays to be detected are stacked inside the placement frame. After placement, the adjustment component is activated to make the two rubber plates gradually approach each other to tidy up the stacked chip trays. After tidying up, the moving component is activated to move the pressing plate downward to contact the stacked chip trays. After contact, the infrared rangefinder is activated to measure the distance between the pressing plate and the pressing plate. The thickness of the stacked chip trays is obtained after measurement. The obtained thickness is automatically compared with the normal thickness of the stacked chip trays stored in the external PLC controller. If the thickness is too high, it means that the chip has popped out of the groove of the tray. Otherwise, it means that the chip is placed stably.

[0004] In existing technology citations, chips can be detected using an infrared rangefinder. However, this design is susceptible to light reflection, which can cause strong interference with laser detection and affect the accuracy of the detection. Summary of the Invention

[0005] To solve the above technical problems, the present invention is implemented through the following technical solution: A chip tray stacking detection device, comprising: The machine body, and a bracket fixedly installed at the middle of the top of the machine body, wherein a conveyor is installed on the top of the machine body; The testing mechanism includes a hydraulic cylinder and a controller. The hydraulic cylinder is fixedly mounted on the top of a support, and the controller is fixedly mounted on the side of the top of the support. A linear actuator is fixedly mounted on the telescopic end of the hydraulic cylinder, and a laser detector is fixedly mounted on the output end of the linear actuator. A rectangular pressure frame is fixedly connected to the bottom of the linear actuator, and a camera is mounted on the bottom of the laser detector. A circular hole is provided on the side of the surface of the rectangular pressure frame. By extending the telescopic end of the hydraulic cylinder, a downward pushing force can be applied to the linear actuator, which will drive the laser detector to move downward. The camera will also move downward with the laser detector, allowing the height of the laser detector and the camera to be adjusted so that the laser emitter and the camera at the bottom of the laser detector are at a suitable distance from the chip tray to be tested. The hydraulic cylinder is then paused, stopping its extension and allowing the laser detector and the camera to stop moving downward, which facilitates subsequent testing of the chip tray. After the stacked chip trays have been inspected, the retraction of the hydraulic cylinder's telescopic end applies an upward pulling force to the linear actuator, causing the linear actuator to move the laser detector upward, and the camera moves upward along with the laser detector. The light-shielding mechanism includes a telescopic damper and a light-shielding shell. The telescopic damper is fixedly installed on the top of the inner side of the machine body, and the light-shielding shell is fixedly installed on the top of the telescopic damper. A feeding notch is provided at the bottom of the surface of the light-shielding shell, and a discharging notch is provided on the side of the light-shielding shell away from the feeding notch. A rectangular elastic cover is fixedly connected to the inner side of the light-shielding shell, and a guide rod is fixedly connected to the top side of the light-shielding shell. A connecting sleeve is fixedly connected to the outer side of the light-shielding shell near the guide rod. The connecting sleeve is slidably installed with the guide rod. By using the round hole on the side of the rectangular pressure frame to fit the top of the guide rod, the rectangular pressure frame can be guided through the sliding fit between the guide rod and the round hole. With the connection of the linear driver, the linear driver and the laser detector move downwards smoothly without shaking, further facilitating the detection of the chip by the laser detector and the camera. Simultaneously, as it continues to move downwards, the bottom of the rectangular pressure frame fits into the top of the light-shielding shell, thus sealing the top of the light-shielding shell with the rectangular pressure frame and preventing direct external light from interfering with the detection of the laser detector and camera. A feeding mechanism is installed on the side of the top of the machine body.

[0006] Furthermore, the feeding mechanism is used to store chip trays, stack chip trays in an orderly manner, and receive chip trays one by one after stacking them, and then release them. The feeding mechanism includes a storage rack, which is fixedly installed on the side of the top of the machine body. A strip-shaped limiting groove is formed on the inner side of the storage rack. A servo motor is fixedly connected to the inner side of the storage rack. The output end of the servo motor is fixedly connected to a support shaft via a coupling. A first sector plate is fixedly connected to the bottom of the surface of the support shaft, and a second sector plate is fixedly connected to the top of the surface of the support shaft. A receiving and discharging assembly is installed on the side of the storage rack. When the rotating second sector plate contacts the material stored in the storage rack... After the bottom chip tray detaches, it falls onto the first sector plate. As the support shaft drives the first and second sector plates to rotate continuously, the second sector plate supports the remaining chip trays in the storage rack, while the bottom chip tray detaches from the first sector plate and falls onto the tray to receive the chip trays. This process is repeated continuously to stack the chip trays. The number of stacked chip trays is precisely controlled by adjusting the rotation speed and number of revolutions at the output of the servo motor to avoid any misalignment.

[0007] Furthermore, the strip-shaped limiting grooves are vertically opened, and there are four strip-shaped limiting grooves, which are evenly distributed on the side of the inner side of the storage rack.

[0008] Furthermore, the material receiving and discharging assembly includes an electric telescopic rod and a wedge-shaped actuating component. The electric telescopic rod is fixedly installed on the side of the storage rack surface, and the wedge-shaped actuating component is fixedly installed on the inner side of the machine body near the storage rack. A base block is fixedly installed at the telescopic end of the electric telescopic rod, and a support plate is slidably installed at the bottom of the base block. A right-angled limiting component is fixedly connected to the side of the support plate surface, and a strip-shaped tie rod is fixedly connected to the side of the support plate surface. A reset spring is fixedly connected between the top of the strip-shaped tie rod and the surface of the base block.

[0009] Furthermore, there are two wedge-shaped actuating members, and the two wedge-shaped actuating members are symmetrically installed along the central axis of the storage rack. The tip of the top of the wedge-shaped actuating member is located between the strip-shaped tie rod and the base block, and the bottom of the strip-shaped tie rod is in contact with the inclined surface on the outside of the wedge-shaped actuating member.

[0010] Furthermore, the hydraulic cylinders are installed vertically, there are two hydraulic cylinders, and the two hydraulic cylinders are installed symmetrically along the central axis of the bracket. The linear actuators are installed horizontally, there are two linear actuators, and the two linear actuators are installed symmetrically along the central axis of the bracket.

[0011] Furthermore, the laser detector is electrically connected to the controller, the camera is electrically connected to the controller, and there are four circular holes, which are evenly distributed on the sides of the rectangular pressure frame surface.

[0012] The laser detector is driven to move linearly using the output of a linear driver, and the camera moves linearly along with it, increasing the detection range of the laser detector and the area within the chip tray that can be captured. Simultaneously, the laser detector transmits the detection results to the controller as electrical signals. The controller receives and processes these signals and displays the results on the screen. Meanwhile, the camera captures images of the chips and transmits the captured information to the controller as electrical signals. The controller receives and processes these signals and displays the images on the screen, thus enabling comprehensive detection of the stacked chip trays. Furthermore, the telescopic damper is installed vertically, and there are four telescopic dampers, which are evenly distributed on both sides of the surface of the light-shielding shell.

[0013] Furthermore, the feed notch and the discharge notch are opened at the same height, and the feed notch and the discharge notch are symmetrically installed along the central axis of the light-shielding shell.

[0014] As the rectangular pressure frame moves downward, the connecting sleeve is pressed down by the rectangular pressure frame. Under the guidance of the guide rod, the rectangular elastic cover is compressed and undergoes elastic deformation. The rectangular elastic cover contracts together, and the corrugations on the inner side of the rectangular elastic cover become denser. Compared with the planar shielding of the existing technology, it can reduce planar reflection. At the same time, the light-shielding shell is also moved downward by the rectangular pressure frame. The feed gap and discharge gap are stuck on the conveyor belt of the conveyor, achieving light shielding, thereby reducing the illumination of external light and making the detection more accurate.

[0015] Once the bottom chip tray lands on the pallet, the extension of the electric telescopic rod moves the base block downwards, causing the pallet to move downwards along with the base block. This creates space for the next chip tray to be placed, and the electric telescopic rod is paused to allow for the chip tray to be received again. This cycle of receiving, moving downwards, and pausing is repeated to stack the chip trays.

[0016] Furthermore, the surface of the rectangular elastic cover is a wavy curved surface, the guide rod is installed vertically, there are four guide rods, and the four guide rods are evenly distributed on the top of the light-shielding shell. The guide rod passes through the center of the connecting sleeve and is installed directly below the circular hole.

[0017] The electric telescopic rod extends continuously, applying a downward pushing force to the base block. The pallet then moves the stacked chip tray downwards. Simultaneously, the inclined surface of the wedge-shaped pusher applies an outward pushing force to the strip tie rod. The pallet and the strip tie rod move outwards together, and the reset spring is stretched and elastically deformed. The pallet slides outwards and is pulled out from the bottom of the chip tray, allowing the stacked chip trays to fall onto the conveyor belt on the surface of the conveyor. The operation of the conveyor belt transports the stacked chip trays closer to the light-shielding shell, thus achieving automatic feeding.

[0018] The beneficial effects of the technical solution provided by this invention include: 1. By extending the telescopic end of the hydraulic cylinder, a downward pushing force can be applied to the linear actuator. The linear actuator will drive the laser detector to move downward, and the camera will move downward along with the laser detector. This allows the height of the laser detector and the camera to be adjusted so that the laser emitter and the camera at the bottom of the laser detector are in a suitable position relative to the chip tray to be inspected, which helps in the subsequent inspection of the chip tray.

[0019] 2. The output of the linear driver drives the laser detector to move linearly, and the camera moves linearly along with the laser detector, which increases the detection range of the laser detector and the area of ​​the chip tray that can be captured by the camera. At the same time, the laser detector transmits the detection results of the chips to the controller in the form of electrical signals. The controller receives and processes the electrical signals and displays the detection results of the laser detector on the display screen in a timely manner. The camera also captures images of the chips and transmits the captured information to the controller in the form of electrical signals. The controller receives and processes the electrical signals and displays the image information captured by the camera on the display screen, thereby performing overall detection of the stacked chip trays.

[0020] Third, the rectangular pressure frame is guided by the sliding fit between the guide rod and the round hole. With the connection of the linear driver, the linear driver and the laser detector move downwards smoothly without shaking. This further facilitates the detection of the chip by the laser detector and the camera. As the rectangular pressure frame continues to move downwards, the bottom of the rectangular pressure frame fits against the top of the light-shielding shell, thus sealing the top of the light-shielding shell and preventing direct external light from interfering with the detection of the laser detector and the camera.

[0021] Fourth, as the rectangular pressure frame moves downward, the connecting sleeve is pressed down by the rectangular pressure frame. Under the guidance of the guide rod, the rectangular elastic cover is compressed and deformed elastically. The rectangular elastic cover contracts together, and the corrugations on the inner side of the rectangular elastic cover become denser, reducing secondary reflection on the inner wall. Compared with the planar blocking of the existing technology, it can reduce planar reflection. At the same time, the light-shielding shell is also moved downward by the rectangular pressure frame. The feed gap and discharge gap are stuck on the conveyor belt of the conveyor, achieving light blocking, thereby reducing the illumination of external light and making the detection more accurate.

[0022] 5. When the rotating second sector plate detaches from the bottom chip tray stored in the storage rack, the bottom chip tray will fall down onto the first sector plate. As the support shaft drives the first and second sector plates to rotate continuously, the second sector plate supports the remaining chip trays in the storage rack, while the bottom chip tray detaches from the first sector plate and falls down onto the tray to receive the chip trays. This process is repeated in a loop to stack the chip trays. The number of stacked chip trays is precisely controlled by controlling the rotation speed and number of revolutions at the output of the servo motor to avoid any misalignment.

[0023] 6. After the bottom chip tray falls onto the pallet, activate the electric telescopic rod. By extending the telescopic end of the electric telescopic rod, the base block can be moved downwards, so that the pallet will move downwards along with the base block, thus reserving space for the next chip tray to be dropped. Then, pause the operation of the electric telescopic rod to receive the chip tray again. Repeat the cycle of receiving, moving downwards, and pausing to stack the chip trays.

[0024] 7. The electric telescopic rod extends continuously, applying a downward pushing force to the base block. The pallet drives the stacked chip trays downward. At the same time, the inclined surface of the wedge-shaped pusher applies an outward pushing force to the strip tie rod. The pallet and the strip tie rod move outward together. The reset spring is stretched and elastically deformed, and the pallet slides outward. The pallet is pulled out from the bottom of the chip tray, allowing the stacked chip trays to fall onto the conveyor belt on the surface of the conveyor. Through the operation of the conveyor belt, the stacked chip trays are transported to a position close to the light-shielding shell, thus realizing automatic feeding. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a chip tray stacking detection device provided in an embodiment of the present invention; Figure 2 This is a bottom view schematic diagram of a chip tray stacking detection device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection structure between the detection mechanism and the support provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the support cross-section provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the connection structure between the light-shielding mechanism and the machine body provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the overall structure of the light-shielding mechanism provided in an embodiment of the present invention; Figure 7 This is a schematic cross-sectional view of the light-shielding shell and rectangular elastic cover provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the connection structure between the feeding mechanism and the machine body provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the overall structure of the feeding mechanism provided in an embodiment of the present invention.

[0026] In the diagram: 1. Machine body; 2. Support frame; 3. Conveyor; 4. Detection mechanism; 5. Light-shielding mechanism; 6. Feeding mechanism; 41. Hydraulic cylinder; 42. Controller; 43. Linear driver; 44. Laser detector; 45. Rectangular pressure frame; 46. Camera; 47. Circular hole; 51. Telescopic damper; 52. Light-shielding shell; 53. Feeding notch; 54. Discharge notch; 55. Rectangular elastic cover; 56. Guide rod; 57. Connecting sleeve; 61. Storage rack; 62. Strip-shaped limiting groove; 63. Servo motor; 64. Support shaft; 65. First sector plate; 66. Second sector plate; 67. Material receiving and discharging assembly; 671. Electric telescopic rod; 672. Wedge-shaped jacking component; 673. Base block; 674. Support plate; 675. Right-angled limiting component; 676. Strip-shaped tie rod; 677. Reset spring. Detailed Implementation

[0027] Example 1, see Figures 1-4 A technical solution is provided: A chip tray stacking detection device, comprising: The machine body 1, and the bracket 2 fixedly installed at the middle of the top of the machine body 1, and the conveyor 3 is installed on the top of the machine body 1; The detection mechanism 4 includes a hydraulic cylinder 41 and a controller 42. The hydraulic cylinder 41 is fixedly installed on the top of the bracket 2, and the controller 42 is fixedly installed on the side of the top of the bracket 2. A linear actuator 43 is fixedly installed on the telescopic end of the hydraulic cylinder 41, and a laser detector 44 is fixedly installed on the output end of the linear actuator 43. A rectangular pressure frame 45 is fixedly connected to the bottom of the linear actuator 43, and a camera 46 is installed on the bottom of the laser detector 44. A round hole 47 is opened on the side of the surface of the rectangular pressure frame 45. When the hydraulic cylinder 41 is activated, it applies a downward pushing force to the linear actuator 43 by extending the telescopic end of the hydraulic cylinder 41. The linear actuator 43 drives the laser detector 44 to move downward, and the camera 46... The camera 46 moves downward along with the laser detector 44, allowing for height adjustments of the laser detector 44 and camera 46. This ensures that the laser emitter at the bottom of the laser detector 44 and camera 46 are positioned appropriately relative to the chip tray to be inspected. The operation of the hydraulic cylinder 41 is then paused, halting its extension and allowing the laser detector 44 and camera 46 to stop moving downward. This facilitates subsequent inspection of the chip trays. Once the stacked chip trays have been inspected, the retraction of the hydraulic cylinder 41 applies an upward pulling force to the linear actuator 43, causing it to move the laser detector 44 upward. The camera 46 also moves upward along with the laser detector 44. Two hydraulic cylinders 41 are installed vertically and symmetrically along the central axis of the bracket 2. Two linear actuators 43 are installed horizontally and symmetrically along the central axis of the bracket 2. The operator starts the linear actuators 43 to drive the laser detector 44 to move linearly, and the camera 46 moves linearly with the laser detector 44, which increases the detection range of the laser detector 44 and the range of chips in the tray. At the same time, the laser detector 44 transmits the chip detection results to the controller 42 in the form of electrical signals. The controller 42 receives and processes the electrical signals and displays the chip detection results on the display screen in a timely manner. The camera 46 captures images of the chips and transmits the captured information to the controller 42 in the form of electrical signals. The controller 42 receives and processes the electrical signals and displays the image information captured by the camera 46 on the display screen, thereby performing overall detection of the stacked chip trays.

[0028] The laser detector 44 is electrically connected to the controller 42, the camera 46 is electrically connected to the controller 42, and there are four round holes 47, which are evenly distributed on the side of the rectangular pressure frame 45.

[0029] Example 2, based on Example 1, see [link / reference] Figures 1 to 7 A technical solution is provided: The light-shielding mechanism 5 includes a telescopic damper 51 and a light-shielding housing 52. The telescopic damper 51 is fixedly installed on the top of the inner side of the machine body 1, and the light-shielding housing 52 is fixedly installed on the top of the telescopic damper 51. A feed notch 53 is provided at the bottom of the surface of the light-shielding housing 52, and a discharge notch 54 is provided on the side of the light-shielding housing 52 away from the feed notch 53. A rectangular elastic cover 55 is fixedly connected to the inner side of the light-shielding housing 52, and a guide rod 56 is fixedly connected to the top side of the light-shielding housing 52. A connecting sleeve 57 is fixedly connected to the outer side of the light-shielding housing 52 near the guide rod 56. The connecting sleeve 57 is slidably installed between the guide rod 56 and the light-shielding housing 52. When the linear actuator 43 moves downward, the rectangular pressure frame 45 will move accordingly. The linear actuator 43 moves downward together, and the round hole 47 on the side of the rectangular pressure frame 45 is fitted onto the top of the guide rod 56. The guide rod 56 and the round hole 47 can slide together to guide the rectangular pressure frame 45. With the connection of the linear actuator 43, the linear actuator 43 and the laser detector 44 move downward smoothly without shaking. This further promotes the detection of the chip by the laser detector 44 and the camera 46. At the same time, as the rectangular pressure frame 45 continues to move downward, the bottom of the rectangular pressure frame 45 fits against the top of the light-shielding shell 52, so that the top of the light-shielding shell 52 is covered by the rectangular pressure frame 45, preventing external light from interfering with the detection of the laser detector 44 and the camera 46. The telescopic dampers 51 are installed vertically. There are four telescopic dampers 51, and the four telescopic dampers 51 are evenly distributed on both sides of the surface of the light-shielding shell 52.

[0030] The feed notch 53 and the discharge notch 54 are opened at the same height and are symmetrically installed along the central axis of the light-shielding shell 52. As the rectangular pressure frame 45 moves downward, the connecting sleeve 57 will be pressed downward by the rectangular pressure frame 45. Under the guidance of the guide rod 56, the rectangular elastic cover 55 is compressed and elastically deformed. The rectangular elastic cover 55 shrinks together, and the corrugations on the inner side of the rectangular elastic cover 55 become denser. Compared with the planar shielding of the prior art, it can reduce planar reflection. At the same time, the light-shielding shell 52 will also be moved downward by the rectangular pressure frame 45. The feed notch 53 and the discharge notch 54 are stuck on the conveyor belt of the conveyor 3 to achieve light shading and reduce the exposure of external light.

[0031] The surface of the rectangular elastic cover 55 is a wavy curved surface. The guide rods 56 are installed vertically. There are four guide rods 56, and the four guide rods 56 are evenly distributed on the top of the light-shielding shell 52. The guide rods 56 pass through the center of the connecting sleeve 57 and are installed directly below the round hole 47.

[0032] Example 3, based on Examples 1 and 2, see below. Figures 1 to 9 A technical solution is provided: The feeding mechanism 6 is used to store chip trays and stack chip trays in an orderly manner. At the same time, it receives chip trays one by one after stacking them and then releases them. The feeding mechanism 6 includes a storage rack 61, which is fixedly installed on the side of the top of the machine body 1. A strip-shaped limiting groove 62 is provided on the side of the inner side of the storage rack 61. A servo motor 63 is fixedly connected to the side of the inner side of the storage rack 61. The output end of the servo motor 63 is fixedly connected to a support shaft 64 through a coupling. A first sector plate 65 is fixedly connected to the bottom of the surface of the support shaft 64, and a second sector plate 66 is fixedly connected to the top of the surface of the support shaft 64. A receiving and discharging assembly 67 is installed on the side of the surface of the storage rack 61.

[0033] The strip-shaped limiting grooves 62 are vertically opened, and there are four strip-shaped limiting grooves 62, which are evenly distributed on the side of the inner side of the storage rack 61.

[0034] Once the number of chip trays stacked on the pallet 674 is complete, the servo motor 63 is paused, causing the support shaft 64, the first sector plate 65, and the second sector plate 66 to stop operating, pausing the feeding process. The electric telescopic rod 671 is then activated again, continuously extending its telescopic end to apply a downward pushing force to the base block 673. The pallet 674 then moves the stacked chip trays downwards. Simultaneously, the inclined surface of the wedge-shaped pusher 672 applies an outward pushing force to the strip rod 676, causing the pallet 674 and the strip rod 676 to move outwards together. The reset spring 677 is stretched and elastically deformed, and the pallet 674 slides outwards, pulling it out from the bottom of the chip trays. This allows the stacked chip trays to fall onto the conveyor belt on the surface of the conveyor 3. The conveyor belt then transports the stacked chip trays closer to the light-shielding shell 52, thus achieving automatic feeding.

[0035] The receiving and discharging assembly 67 includes an electric telescopic rod 671 and a wedge-shaped actuating member 672. The electric telescopic rod 671 is fixedly installed on the side of the surface of the storage rack 61, and the wedge-shaped actuating member 672 is fixedly installed on the inner side of the machine body 1 and close to the storage rack 61. A base block 673 is fixedly installed at the telescopic end of the electric telescopic rod 671. A tray 674 is slidably installed at the bottom of the base block 673. A right-angle limiting member 675 is fixedly connected to the side of the surface of the tray 674. A strip-shaped pull rod 676 is fixedly connected to the side of the surface of the tray 674. A reset spring 677 is fixedly connected between the top of the strip-shaped pull rod 676 and the surface of the base block 673. In the initial state, the chip trays to be tested are placed in an orderly manner inside the storage rack 61, and the second sector plate 66 supports the chip trays. Under the limiting action of the strip-shaped limiting groove 62, the chip trays are stored in the storage rack 61. After completion, the staff starts the servo motor 63. The rotation of the output end of the servo motor 63 drives the support shaft 64 to rotate, causing the first sector plate 65 and the second sector plate 66 to rotate together. When the rotating second sector plate 66 detaches from the bottom chip tray stored in the storage rack 61, the bottom chip tray will fall down onto the first sector plate 65. As the support shaft 64 drives the first sector plate 65 and the second sector plate 66 to continue rotating, the second sector plate 66 supports the remaining chip trays in the storage rack 61, while the bottom chip tray detaches from the first sector plate 65 and falls down onto the tray 674 to receive the chip trays. This process is repeated in a loop to stack the chip trays. By controlling the rotation speed and number of revolutions of the output end of the servo motor 63, the number of stacked chip trays is precisely controlled to avoid any misalignment.

[0036] There are two wedge-shaped actuators 672, and the two wedge-shaped actuators 672 are symmetrically installed along the central axis of the storage rack 61. The tip of the top of the wedge-shaped actuator 672 is between the strip rod 676 and the base block 673. The bottom of the strip rod 676 is in contact with the inclined surface of the outer side of the wedge-shaped actuator 672. When the bottom chip tray falls onto the pallet 674, the electric telescopic rod 671 is activated. By extending the telescopic end of the electric telescopic rod 671, the base block 673 can be moved downward, so that the pallet 674 will move downward along with the base block 673, thus reserving space for the next chip tray to be dropped. The operation of the electric telescopic rod 671 is paused so that the chip tray can be received again. This cycle of receiving, moving downward, and pausing is repeated to stack the chip trays.

[0037] In use, the operator first places the chip trays to be tested into the storage rack 61 in an orderly manner. The second sector plate 66 supports the chip trays, and under the limiting action of the strip-shaped limiting groove 62, the chip trays are stored in the storage rack 61. After the storage rack 61 is filled with chip trays, the operator starts the servo motor 63. The rotation of the output end of the servo motor 63 drives the support shaft 64 to rotate, causing the first sector plate 65 and the second sector plate 66 to rotate together. When the rotating second sector plate 66 is in contact with the storage rack... After the bottom chip tray stored in the storage rack 61 detaches, it falls down onto the first sector plate 65. As the support shaft 64 drives the first sector plate 65 and the second sector plate 66 to rotate continuously, the second sector plate 66 supports the remaining chip trays in the storage rack 61, while the bottom chip tray detaches from the first sector plate 65 and falls down onto the tray 674 to receive the chip trays. This process is repeated in a loop to stack the chip trays. The number of stacked chip trays is precisely controlled by controlling the rotation speed and number of revolutions at the output of the servo motor 63. Meanwhile, once the bottom chip tray falls onto the pallet 674, the electric telescopic rod 671 is activated. By extending the telescopic end of the electric telescopic rod 671, the base block 673 can be moved downwards, causing the pallet 674 to move downwards along with the base block 673. This makes room for the next chip tray to be dropped, and the operation of the electric telescopic rod 671 is paused to allow the chip tray to be received again. This cycle of receiving, moving downwards, and pausing is repeated to stack the chip trays.

[0038] Once the number of chip trays stacked on the pallet 674 is complete, the servo motor 63 stops working, causing the support shaft 64, the first sector plate 65, and the second sector plate 66 to stop operating, pausing the material feeding, and the electric telescopic rod 671 is activated again. The telescopic end of the electric telescopic rod 671 continues to extend, applying a downward pushing force to the base block 673. The pallet 674 drives the stacked chip trays to move downward. At the same time, the inclined surface of the wedge-shaped top actuator 672 applies an outward pushing force to the strip tie rod 676. The pallet 674 and the strip tie rod 676 move outward together. The reset spring 677 is stretched and elastically deformed, and the pallet 674 slides outward. The pallet 674 is pulled out from the bottom of the chip tray, allowing the stacked chip trays to fall onto the conveyor belt on the surface of the conveyor 3. Through the operation of the conveyor belt, the stacked chip trays are transported to a position close to the light-shielding shell 52. As the conveyor belt on the surface of conveyor 3 operates, it continuously transports the stacked chip trays. The stacked chip trays enter the interior of the light-shielding shell 52 through the feeding gap 53, and the operation of the conveyor belt on the surface of conveyor 3 is paused. At the same time, the operator activates the hydraulic cylinder 41 to work. By extending the telescopic end of the hydraulic cylinder 41, a downward pushing force can be applied to the linear driver 43. The linear driver 43 will drive the laser detector 44 to move downward, and the camera 46 will move downward along with the laser detector 44. The height of the laser detector 44 and the camera 46 can be adjusted so that the laser emitter at the bottom of the laser detector 44 and the camera 46 are in a suitable position relative to the chip tray to be inspected. The operation of the hydraulic cylinder 41 is paused, so that the telescopic end of the hydraulic cylinder 41 stops extending, and the downward movement of the laser detector 44 and the camera 46 is stopped. When the linear actuator 43 moves downward, the rectangular pressure frame 45 moves downward together with the linear actuator 43. The round hole 47 on the side of the rectangular pressure frame 45 is fitted onto the top of the guide rod 56. The guide rod 56 and the round hole 47 can slide together to guide the rectangular pressure frame 45. With the connection of the linear actuator 43, the linear actuator 43 and the laser detector 44 move downward smoothly together. As the rectangular pressure frame 45 moves downward, the connecting sleeve 57 is pressed downward by the rectangular pressure frame 45. Under the guidance of the guide rod 56, the rectangular elastic cover 55 is compressed and elastically deformed. The rectangular elastic cover 55 contracts together, and the corrugations on the inner side of the rectangular elastic cover 55 become denser. Compared with the planar shielding of the prior art, it can reduce planar reflection. At the same time, the light-shielding shell 52 is also moved downward by the rectangular pressure frame 45. The feed notch 53 and the discharge notch 54 are stuck on the conveyor belt of the conveyor 3 and stacked together. The chip tray is completely inside the light-shielding shell 52, achieving light shielding and reducing the exposure of external light. Furthermore, the operator activates the linear actuator 43, using its output to drive the laser detector 44 to move linearly. The camera 46 moves linearly along with the laser detector 44, increasing its detection range and the area within the tray that can be captured by the camera. Simultaneously, the laser detector 44 transmits the chip detection results to the controller 42 in the form of electrical signals. The controller 42 receives and processes these electrical signals and displays the results on the screen. The camera 46 also captures images of the chips and transmits the captured information to the controller 42 in the form of electrical signals. The controller 42 receives and processes these electrical signals and displays the images captured by the camera 46 on the screen, thus performing an overall inspection of the stacked chip trays. After the stacked chip trays are inspected, the retraction of the extension end of the hydraulic cylinder 41 can apply an upward pulling force to the linear driver 43, causing the linear driver 43 to drive the laser detector 44 to move upward, and the camera 46 will move upward along with the laser detector 44. After the rectangular pressure frame 45 moves upward, the pressure of the rectangular pressure frame 45 on the light-shielding shell 52 disappears, and under the elastic extension and contraction of the telescopic damper 51, the light-shielding shell 52 moves upward, and the feed notch 53 and the discharge notch 54 are separated from the conveyor belt. Then the chip tray that has been tested can be removed again by the operation of the conveyor belt, which is convenient for subsequent retesting.

[0039] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A chip tray stacking detection device, characterized in that, include: The machine body (1) and the bracket (2) fixedly installed at the middle of the top of the machine body (1), and the top of the machine body (1) is equipped with a conveyor (3); The detection mechanism (4) includes a hydraulic cylinder (41) and a controller (42). The hydraulic cylinder (41) is fixedly installed on the top of the bracket (2), and the controller (42) is fixedly installed on the side of the top of the bracket (2). A linear actuator (43) is fixedly installed on the telescopic end of the hydraulic cylinder (41), and a laser detector (44) is fixedly installed on the output end of the linear actuator (43). A rectangular pressure frame (45) is fixedly connected to the bottom of the linear actuator (43), and a camera (46) is installed on the bottom of the laser detector (44). A round hole (47) is opened on the side of the surface of the rectangular pressure frame (45). The light-shielding mechanism (5) includes a telescopic damper (51) and a light-shielding shell (52). The telescopic damper (51) is fixedly installed on the top of the inner side of the machine body (1). The light-shielding shell (52) is fixedly installed on the top of the telescopic damper (51). A feeding notch (53) is provided at the bottom of the surface of the light-shielding shell (52). A discharge notch (54) is provided on the side of the light-shielding shell (52) away from the feeding notch (53). A rectangular elastic cover (55) is fixedly connected to the inner side of the light-shielding shell (52). A guide rod (56) is fixedly connected to the top side of the light-shielding shell (52). A connecting sleeve (57) is fixedly connected to the outer side of the light-shielding shell (52) and near the guide rod (56). The connecting sleeve (57) and the guide rod (56) are slidably installed together. A feeding mechanism (6) is installed on the side of the top of the machine body (1).

2. The chip tray stacking detection device according to claim 1, characterized in that: The feeding mechanism (6) is used to store chip trays and stack chip trays in an orderly manner. At the same time, it receives chip trays one by one after stacking them and then releases them. The feeding mechanism (6) includes a storage rack (61), which is fixedly installed on the side of the top of the machine body (1). A strip-shaped limiting groove (62) is provided on the side of the inner side of the storage rack (61). A servo motor (63) is fixedly connected to the side of the inner side of the storage rack (61). The output end of the servo motor (63) is fixedly connected to a support shaft (64) through a coupling. A first sector plate (65) is fixedly connected to the bottom of the surface of the support shaft (64). A second sector plate (66) is fixedly connected to the top of the surface of the support shaft (64). A receiving and discharging assembly (67) is installed on the side of the surface of the storage rack (61).

3. The chip tray stacking detection device according to claim 2, characterized in that: The strip-shaped limiting groove (62) is vertically opened, and there are four strip-shaped limiting grooves (62), and the four strip-shaped limiting grooves (62) are evenly distributed on the side of the inner side of the storage rack (61).

4. The chip tray stacking detection device according to claim 2, characterized in that: The receiving and discharging assembly (67) includes an electric telescopic rod (671) and a wedge-shaped actuating member (672). The electric telescopic rod (671) is fixedly installed on the side of the surface of the storage rack (61). The wedge-shaped actuating member (672) is fixedly installed on the inner side of the machine body (1) and close to the storage rack (61). A base block (673) is fixedly installed at the telescopic end of the electric telescopic rod (671). A tray (674) is slidably installed at the bottom of the base block (673). A right-angled limiting member (675) is fixedly connected to the side of the surface of the tray (674). A strip rod (676) is fixedly connected to the side of the surface of the tray (674). A reset spring (677) is fixedly connected between the top of the strip rod (676) and the surface of the base block (673).

5. The chip tray stacking detection device according to claim 4, characterized in that: There are two wedge-shaped actuating members (672), and the two wedge-shaped actuating members (672) are symmetrically installed along the central axis of the storage rack (61). The tip of the top of the wedge-shaped actuating member (672) is located between the strip rod (676) and the base block (673), and the bottom of the strip rod (676) is in contact with the inclined surface on the outside of the wedge-shaped actuating member (672).

6. The chip tray stacking detection device according to claim 1, characterized in that: The hydraulic cylinder (41) is installed vertically. There are two hydraulic cylinders (41), and the two hydraulic cylinders (41) are installed symmetrically along the central axis of the bracket (2). The linear actuator (43) is installed horizontally. There are two linear actuators (43), and the two linear actuators (43) are installed symmetrically along the central axis of the bracket (2).

7. The chip tray stacking detection device according to claim 1, characterized in that: The laser detector (44) is electrically connected to the controller (42), the camera (46) is electrically connected to the controller (42), there are four circular holes (47), and the four circular holes (47) are evenly distributed on the side of the rectangular pressure frame (45).

8. The chip tray stacking detection device according to claim 1, characterized in that: The telescopic damper (51) is installed vertically, and there are four telescopic dampers (51), which are evenly distributed on both sides of the surface of the light-shielding shell (52).

9. A chip tray stacking detection device according to claim 1, characterized in that: The feed notch (53) and discharge notch (54) are opened at the same height, and the feed notch (53) and discharge notch (54) are symmetrically installed along the central axis of the light-shielding shell (52).

10. A chip tray stacking detection device according to claim 1, characterized in that: The surface of the rectangular elastic cover (55) is a wavy curved surface. The guide rod (56) is installed vertically. There are four guide rods (56), and the four guide rods (56) are evenly distributed on the top of the light-shielding shell (52). The guide rod (56) passes through the center of the connecting sleeve (57). The guide rod (56) is installed directly below the round hole (47).

Images