Detection device for electroplated HDI circuit board

Abstract

The invention provides a detection device for an electroplated HDI circuit board, and belongs to the technical field of visual inspection.The detection device comprises a detection box and a conveyor belt, a detection assembly is installed in the detection box, an alarm lamp is installed at the top of the detection box, and the bottom of the detection box and an installation frame on the side edge of the conveyor belt are fixedly installed; the lower end of the conveying belt is installed on the ground through a fixing frame, the upper end of the conveying belt is fixedly connected with a plurality of supporting assemblies, the upper ends of the supporting assemblies are connected with a circuit board in a clamped mode, and an overturning assembly is installed in the middle of the conveying belt. According to the circuit board turnover device, the effects of 180-degree turnover of the circuit board and positioning in the turnover process are achieved, subsequent processing of the circuit board is facilitated, meanwhile, the turnover state and the vertical state of the circuit board are achieved, and the upper face, the lower face and the vertical face of the circuit board are conveniently photographed through an industrial camera to visually detect the thickness and the surface roughness of the circuit board.

Description

Technical Field

[0001] The present invention relates to the field of visual inspection technology, and in particular to an inspection device for HDI circuit boards after electroplating. Background Art

[0002] High-density interconnection (HDI) manufacturing printed circuit boards are structural components formed by insulating materials supplemented by conductor wiring. When printed circuit boards are made into final products, integrated circuits, transistors (triodes, diodes), passive components (such as resistors, capacitors, connectors, etc.) and various other electronic parts will be installed on them. With the help of wires, electronic signal connections and proper functions can be formed. Therefore, printed circuit boards are a platform that provides component connections and is used to support the base of connecting parts.

[0003] At present, industrial cameras are usually used for circuit board inspection, which has the characteristics of fast transmission speed, good color reproduction, clear imaging, etc. It can not only conveniently shoot microscopic images, but also measure the length, angle, area and other parameters of the photographed object, and print graphic reports. In order to make the circuit board smaller and larger in capacity, electrical components are usually installed on the circuit board, which makes it more troublesome to inspect both sides of the circuit board. A special flipping machine is required to flip the circuit board. After electroplating, since lamination and light and shadow processes are required, the position of the circuit board needs to be limited during flipping to prevent the circuit board from tilting and affecting subsequent processes. In addition, the flipping machine on the market usually drives the fixture to flip through a cylinder, which will affect the plating layer of the circuit board after electroplating during the flipping process. Summary of the invention

[0004] In view of this, the present invention provides a detection device for HDI circuit boards after electroplating to solve the problem that the position of the circuit board needs to be limited during flipping to prevent the circuit board from tilting and affecting subsequent processes. In addition, the flipping machines currently on the market usually use cylinders to drive the fixture to flip, which will affect the plating layer of the circuit board after the flipping process.

[0005] The technical solution proposed in the present invention is: a detection device for HDI circuit boards after electroplating, comprising a detection box and a conveyor belt, wherein a detection component is installed inside the detection box, an alarm light is installed on the top of the detection box, the bottom of the detection box is fixedly installed with a mounting frame on the side of the conveyor belt, the lower end of the conveyor belt is installed on the ground through a fixing frame, the upper end of the conveyor belt is fixedly connected with a plurality of support components, the upper ends of the plurality of support components are clamped with circuit boards, and a flip component is installed in the middle of the conveyor belt.

[0006] Furthermore, the detection component includes a cylinder, which is installed on the top of the detection box. The output end of the cylinder passes through a fixed plate and the lower end is fixedly connected to an industrial camera. A plurality of guide rods are slidably sleeved around the industrial camera. Four of the guide rods are fixedly connected to the fixed plate. Two fill lights are installed on the top of the detection box, and the industrial camera is located between the two fill lights.

[0007] Furthermore, the flipping assembly includes a main motor, the output end of the main motor is fixedly connected to a crankshaft, the crankshaft is rotatably sleeved with two groups of pushing assemblies, the two groups of pushing assemblies are respectively rotatably sleeved with a first flip frame and a second flip frame, a fixed rod is rotatably sleeved between the two groups of first flip frames and the second flip frames, and both sides of the fixed rod are fixedly connected to the mounting frame of the conveyor belt through a mounting plate.

[0008] Furthermore, the crankshaft is respectively provided with two groups of first cranks and second cranks matching with the propulsion assembly, the first cranks and the second cranks are centrally symmetrically distributed, the two groups of first cranks and the second cranks are symmetrically distributed, and the first cranks are rotatably sleeved with the mounting frame of the conveyor belt away from the main motor through bearings.

[0009] Furthermore, the pushing assembly includes a first push rod and a second push rod, the first push rod is rotatably connected to the first crank via a collar, the side of the first push rod away from the first crank is rotatably connected to the first flip frame, the second push rod is rotatably connected to the second crank via a collar, and the end of the pushing assembly away from the second crank is rotatably connected to the second flip frame.

[0010] Further, the first flip frame includes a first rotating disk, a first positioning plate and a first rotating plate are fixedly connected to the side of the first rotating disk, the first rotating plate is rotatably sleeved with the second crank, a first positioning rod is installed on the side of the first positioning plate away from the first rotating disk, and the first positioning rod is matched with the mounting hole of the circuit board.

[0011] Furthermore, the second flip frame includes a second rotating disk, a second positioning plate and a second rotating plate are fixedly connected to the side of the second rotating disk, a second positioning rod is installed on the side of the second positioning plate close to the second rotating disk, and the second positioning rod is matched with the mounting hole of the circuit board.

[0012] Further, the support assembly includes a main support assembly and an auxiliary support block, and the main support assembly and the auxiliary support block are fixedly mounted on the conveyor belt; The main support assembly includes a main support block, which is fixedly installed with the circuit board. A screw is rotatably sleeved on the middle part of the main support block through a bearing. The screw passes through the main support block and is fixedly connected with a gear. A slider is threadedly sleeved on the side of the screw away from the gear. A third positioning rod is fixedly connected on the side of the slider away from the gear. The third positioning rod is matched with the mounting hole of the circuit board.

[0013] Furthermore, a first rack and a second rack are fixedly connected to the side of the detection box, the first rack and the second rack are centrally symmetrical, and both the first rack and the second rack are meshed with gears.

[0014] The detection device for HDI circuit board after electroplating provided by the present invention has the following beneficial effects: 1. When the present invention is in use, the first turning frame and the second turning frame, the crankshaft is provided with two sets of symmetrically distributed first cranks and second cranks. At this time, the main motor drives the crankshaft to rotate, the first crank moves to the highest point, and the second crank rotates to the lowest point. When the first crank rotates to the highest point, it pushes the first push rod to move to the right, and then pushes the first turning frame to rotate counterclockwise, and the farthest distance pushed is the horizontal position on the right side of the rotation radius of the first crank. When the second crank moves to the lowest end, it pulls the second push rod to move to the left, and then pulls the second turning frame to rotate clockwise, and the farthest distance pulled is the horizontal position on the left side of the rotation radius of the second crank. The rotation directions of the first turning frame and the second turning frame are just opposite. When the racks are in contact, the rotation angle of the two is the maximum, and the first flip rack and the second flip rack rotate at the same time. After the first crank pushes or pulls the first push rod and the second push rod to the farthest distance, the first crank and the second crank are reset, driving the first flip rack and the second flip rack to continue to turn oppositely to complete the reset. The second flip rack is used to lift the circuit board after rotating. After the first flip rack rotates to contact the circuit board, the circuit board is pulled toward the first flip rack, and then guided to the first flip rack due to gravity until the first flip rack and the second flip rack are reset, realizing the flipping and vertical states of the circuit board, which is convenient for taking pictures of the upper and lower surfaces and the vertical surface of the circuit board by an industrial camera to visually detect the thickness and surface roughness of the circuit board.

[0015] 2. When the present invention is in use, the first positioning rod, the second positioning rod and the third positioning rod are used to lift the circuit board during the rotation of the two second positioning plates, and the second positioning rod will be inserted into the mounting hole of the circuit board first. The circuit board generally has four mounting holes. The circuit board first limits the two mounting holes through the third positioning rod on the main support assembly, and then passes through the second positioning plate to insert into the two mounting holes on the right side. After the second flip frame is flipped, the two mounting holes on the left side are at the top and are limited by the first positioning rod. After the first positioning rod is reset, the positions of the two rows of mounting holes change relatively. At this time, the leftmost mounting hole of the circuit board can be inserted into the third positioning rod of the main support assembly, and the main support assembly and the auxiliary support block can wait at the position after the first flip frame is flipped through the mounting plate, thereby achieving the purpose of positioning the circuit board during flipping and facilitating subsequent processing of the circuit board.

[0016] 3. When the present invention is in use, through the detection component, the industrial camera is first driven by the cylinder to move downward along the guide rod. When the circuit board is erected, the cylinder drives the industrial camera to move upward, which is convenient for the industrial camera to accurately focus on the circuit board. In view of the image acquisition and accurate detection results existing in the existing automated equipment for visual inspection of PCB boards, in this solution, in order to address the problem of difficulty in identifying some colors, a lower fill light is customized to perform fill light processing on the circuit board, so that the detection features of the circuit board are more obvious and clear during inspection, and the circuit board can be detected more accurately. The industrial camera can perform visual inspection on both sides of the circuit board and the erected state, and can effectively detect the coating thickness and roughness of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 The schematic diagram of the structure of the detection device after HDI circuit board electroplating of the present invention is shown; Figure 2 The schematic diagram of the structure of the detection device after HDI circuit board electroplating of the present invention is shown; Figure 3 A schematic diagram showing the structure of the detection assembly of the present invention is shown; Figure 4 A schematic diagram of the structure of the flip assembly of the present invention is shown; Figure 5 A partial structural schematic diagram of the flip assembly of the present invention is shown; Figure 6A schematic structural diagram of the main support assembly of the present invention is shown; Figure 7 The schematic diagram of the structure of the first overturning frame and the second overturning frame of the present invention is shown; Figure 8 A schematic structural diagram of the first rack and the second rack of the present invention is shown.

[0020] Reference numerals list 1. Detection box; 2. Circuit board; 3. Conveyor belt; 4. Fixing frame; 5. Detection assembly; 501. Cylinder; 502. Fixing plate; 503. Guide rod; 504. Industrial camera; 505. Fill light; 6. Warning light; 7. Turnover assembly; 701. Main motor; 702. Pushing assembly; 7021. First push rod; 7022. Second push rod; 703. First turning frame; 7031. First rotating disk; 7032. First positioning plate; 7033. First positioning rod; 7034. First rotating plate; 704 , second turning frame; 7041, second rotating disk; 7042, second positioning plate; 7043, second positioning rod; 7044, second rotating plate; 705, fixing rod; 706, mounting plate; 707, crankshaft; 7071, first crank; 7072, second crank; 8, support assembly; 801, main support assembly; 8011, main support block; 8012, screw rod; 8013, gear; 8014, slider; 8015, third positioning rod; 802, auxiliary support block; 9, first rack; 10, second rack. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,as well as Figure 6 , Embodiment 1: The present invention proposes a detection device for HDI circuit boards after electroplating, comprising a detection box 1 and a conveyor belt 3, wherein a detection component 5 is installed inside the detection box 1, an alarm light 6 is installed on the top of the detection box 1, the bottom of the detection box 1 is fixedly installed with a mounting frame on the side of the conveyor belt 3, the lower end of the conveyor belt 3 is installed on the ground through a fixing frame 4, a plurality of support components 8 are fixedly connected to the upper end of the conveyor belt 3, a circuit board 2 is clamped at the upper ends of the plurality of support components 8, and a flip component 7 is installed in the middle of the conveyor belt 3.

[0023] First, the circuit board 2 is transported by the conveyor belt 3 and the support component 8. After the circuit board 2 passes through the interior of the inspection box 1, the inspection component 5 starts to take pictures and inspect the circuit board 2. First, the product conveyor belt 3 transports the circuit board 2 to the specified position, and the support component 8 limits the circuit board 2. The motion control system controls the conveyor belt 3 and the inspection component 5 to take pictures of the circuit board 2 one by one. While taking pictures, the inspection component 5 illuminates the product to make it easier to judge the product. The visual inspection system detects the status of the product and makes a judgment on it. After the inspection is completed, the support mechanism moves down and leaves the product. The OK circuit board 2 is transmitted to the next process for production via the conveyor belt 3; the defective product alarm displays a defective picture, and after the personnel re-judge and mark it, it is transported to the next process for production by the conveyor belt 3, realizing manual zero-contact inspection of OK products. Compared with traditional manual inspection methods, the research and development of safe and high-precision visual inspection technology for circuit boards 2 not only improves production efficiency, but also ensures standardized operations and improves production quality.

[0024] Preferably, the detection component 5 includes a cylinder 501, which is installed on the top of the detection box 1. The output end of the cylinder 501 passes through the fixed plate 502 and the lower end is fixedly connected to an industrial camera 504. The industrial camera 504 is slidably sleeved with multiple guide rods 503 around it. The four guide rods 503 are fixedly connected to the fixed plate 502. Two fill lights 505 are installed on the top of the detection box 1, and the industrial camera 504 is located between the two fill lights 505.

[0025] After the installation is completed, it is necessary to adjust according to the model of the circuit board 2. First, the cylinder 501 drives the industrial camera 504 to move downward along the guide rod 503. When the circuit board 2 is erected, the cylinder 501 drives the industrial camera 504 to move upward, so that the industrial camera 504 can accurately focus on the circuit board 2. In view of the image acquisition and accurate detection results in the existing automated equipment for visual inspection of PCB boards, in this solution, in order to solve the problem of difficulty in identifying some colors, a lower fill light 505 is customized to perform fill light processing on the circuit board 2, so that the detection features of the circuit board 2 are more obvious and clear during the inspection, so that the circuit board 2 can be detected more accurately. The industrial camera 504 can perform visual inspection on both sides of the circuit board 2 and the erected state, and can effectively detect the coating thickness and roughness of the circuit board 2.

[0026] Preferably, the support assembly 8 includes a main support assembly 801 and an auxiliary support block 802, and both the main support assembly 801 and the auxiliary support block 802 are fixedly mounted to the conveyor belt 3; The main support assembly 801 includes a main support block 8011, which is fixedly installed with the circuit board 2. A screw rod 8012 is rotatably sleeved on the middle part of the main support block 8011 through a bearing. The screw rod 8012 passes through the main support block 8011 and is fixedly connected with a gear 8013. A slider 8014 is threadedly sleeved on the side of the screw rod 8012 away from the gear 8013. A third positioning rod 8015 is fixedly connected on the side of the slider 8014 away from the gear 8013. The third positioning rod 8015 is matched with the mounting hole of the circuit board 2.

[0027] The support assembly 8 is used for positioning and supporting the circuit board 2 during the conveying process. The circuit board 2 is placed on the main support block 8011 of the main support assembly 801 by a robot or manually. The circuit board 2 is usually provided with a mounting hole to facilitate the installation of the circuit board 2 on the shell. The third positioning rod 8015 is inserted into the mounting hole of the circuit board 2 to facilitate the limiting of the circuit board 2. There are two main support assemblies 801, which are symmetrically distributed, and can effectively limit the circuit board 2 to prevent the circuit board 2 from shifting, and also facilitate the subsequent positioning of the circuit board 2. Since the third positioning rod 8015 is inserted into the mounting hole of the circuit board 2, the third positioning rod 8015 is in the maximum extended state at this time, which is convenient for the subsequent flipping assembly 7 to flip and use.

[0028] On the basis of the first embodiment, the second embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown: The detection device for HDI circuit boards after electroplating comprises a detection box 1 and a conveyor belt 3. A detection component 5 is installed inside the detection box 1. An alarm light 6 is installed on the top of the detection box 1. The bottom of the detection box 1 is fixedly installed with a mounting frame on the side of the conveyor belt 3. The lower end of the conveyor belt 3 is installed on the ground through a fixing frame 4. A plurality of supporting components 8 are fixedly connected to the upper end of the conveyor belt 3. The upper ends of the plurality of supporting components 8 are clamped with circuit boards 2. A flip component 7 is installed in the middle of the conveyor belt 3.

[0029] First, the circuit board 2 is transported by the conveyor belt 3 and the support component 8. After the circuit board 2 passes through the interior of the inspection box 1, the inspection component 5 starts to take pictures and inspect the circuit board 2. First, the product conveyor belt 3 transports the circuit board 2 to the specified position, and the support component 8 limits the circuit board 2. The motion control system controls the conveyor belt 3 and the inspection component 5 to take pictures of the circuit board 2 one by one. While taking pictures, the inspection component 5 illuminates the product to make the product easier to judge. The visual inspection system detects the status of the product and makes a judgment on it. After the inspection is completed, the support mechanism moves down and leaves the product. OK products are transported to the next process for production via the conveyor belt 3; the defective product alarm displays a bad picture, and after the personnel re-judge and mark it, it is transported to the next process for production by the conveyor belt 3, realizing manual zero-contact inspection of OK products. Compared with traditional manual inspection methods, the research and development of safe and high-precision visual inspection technology for circuit boards 2 not only improves production efficiency, but also ensures standardized operations and improves production quality.

[0030] Preferably, the flipping assembly 7 includes a main motor 701, the output end of the main motor 701 is fixedly connected to a crankshaft 707, the crankshaft 707 is rotatably sleeved with two groups of pushing assemblies 702, the two groups of pushing assemblies 702 are respectively rotatably sleeved with a first flip frame 703 and a second flip frame 704, a fixed rod 705 is rotatably sleeved between the two groups of first flip frames 703 and the second flip frames 704, and both sides of the fixed rod 705 are fixedly connected to the mounting frame of the conveyor belt 3 through a mounting plate 706.

[0031] After the circuit board 2 enters the interior of the inspection box 1 through the conveyor belt 3, the conveyor belt 3 stops transporting through precise control. At this time, the main motor 701 is started through the controller. The main motor 701 starts to drive the crankshaft 707 to rotate. The rotation of the crankshaft 707 drives the pushing component 702 to push the first flip frame 703 and the second flip frame 704 to rotate relative to each other. The first flip frame 703 and the second flip frame 704 are both rotatably connected with the fixed rod 705, and the fixed rod 705 is installed and fixed on the inspection box 1 through the mounting plate 706.

[0032] Preferably, the crankshaft 707 is respectively provided with two groups of first cranks 7071 and second cranks 7072 matching the pushing assembly 702, the first cranks 7071 and the second cranks 7072 are centrally symmetrically distributed, the two groups of first cranks 7071 and second cranks 7072 are symmetrically distributed, and the first cranks 7071 are away from the main motor 701 and are rotatably sleeved with the mounting frame of the conveyor belt 3 through bearings.

[0033] The crankshaft 707 is provided with two sets of symmetrically distributed first cranks 7071 and second cranks 7072. The first crank 7071 is rotatably sleeved with the first flip frame 703 through the first push rod 7021, and the second crank 7072 is rotatably sleeved with the second flip frame 704 through the second push rod 7022. Both ends of the second push rod 7022 and the first push rod 7021 are fixedly installed with collars to facilitate the connection of the first push rod 7021 and the second push rod 7022 and the first crank 7071 and the second crank 7072. Since the first crank 7071 and the second crank 7072 are centrally symmetrically distributed on one side, when the main motor 701 rotates to drive the first crank 7071 and the second crank 7072 to rotate with the crankshaft 707 as the axis, as shown in FIG. Figure 5 As shown, at this time, the main motor 701 drives the crankshaft 707 to rotate, the first crank 7071 moves to the highest point, and the second crank 7072 rotates to the lowest point. When the first crank 7071 rotates to the highest point, it pushes the first push rod 7021 to move to the right, and then pushes the first flip frame 703 to rotate counterclockwise, and the farthest distance pushed is the horizontal position on the right side of the rotation radius of the first crank 7071. When the second crank 7072 moves to the lowest end, it pulls the second push rod 7022 to move to the left, and then pulls the second flip frame 704 to rotate clockwise, and the farthest distance pulled is the horizontal position on the left side of the rotation radius of the second crank 7072. The rotation directions of the first flip frame 703 and the second flip frame 704 are just opposite. When the first flip frame 703 and the second flip frame 704 are in contact, they have the maximum rotation angle of the two. The first flip frame 703 and the second flip frame 704 rotate at the same time. Or after pulling the first push rod 7021 and the second push rod 7022 to the farthest distance, during the resetting process of the first crank 7071 and the second crank 7072, the first flip frame 703 and the second flip frame 704 are driven to continue to turn in the opposite direction to complete the resetting. The second flip frame 704 is used to lift the circuit board 2 after rotating. After the first flip frame 703 rotates to contact the circuit board 2, the circuit board 2 is pulled toward the first flip frame 703, and then guided to the first flip frame 703 due to gravity until the first flip frame 703 and the second flip frame 704 complete the resetting, thereby realizing the flipping and vertical states of the circuit board 2, which is convenient for the industrial camera 504 to take pictures of the upper and lower surfaces and the vertical surface of the circuit board 2 to visually detect the thickness and surface roughness of the circuit board 2. The second positioning plate 7042 and the first positioning plate 7032 mainly play a supporting role with the circuit board 2, and the coating of the circuit board 2 will not be damaged due to clamping.

[0034] Preferably, the pushing assembly 702 includes a first push rod 7021 and a second push rod 7022, the first push rod 7021 is rotatably connected to the first crank 7071 via a collar, the side of the first push rod 7021 away from the first crank 7071 is rotatably connected to the first flip frame 703, the second push rod 7022 is rotatably connected to the second crank 7072 via a collar, and the end of the pushing assembly 702 away from the second crank 7072 is rotatably connected to the second flip frame 704.

[0035] The first crank 7071 is rotatably connected to the first flip frame 703 through the first push rod 7021, and the second crank 7072 is rotatably connected to the second flip frame 704 through the second push rod 7022. Both ends of the second push rod 7022 and the first push rod 7021 are fixedly installed with rings to facilitate the connection between the first push rod 7021 and the second push rod 7022 and the first crank 7071 and the second crank 7072.

[0036] Preferably, the first flip frame 703 includes a first rotating disk 7031, and the side of the first rotating disk 7031 is fixedly connected with a first positioning plate 7032 and a first rotating plate 7034, the first rotating plate 7034 is rotatably sleeved with the second crank 7072, and a first positioning rod 7033 is installed on the side of the first positioning plate 7032 away from the first rotating disk 7031, and the first positioning rod 7033 is matched with the mounting hole of the circuit board 2.

[0037] Preferably, the second flip frame 704 includes a second rotating disk 7041, and the side of the second rotating disk 7041 is fixedly connected with a second positioning plate 7042 and a second rotating plate 7044, and the second positioning plate 7042 is installed with a second positioning rod 7043 on the side close to the second rotating disk 7041, and the second positioning rod 7043 is matched with the mounting hole of the circuit board 2.

[0038] When the circuit board 2 is lifted up during the rotation of the two second positioning plates 7042, the second positioning rod 7043 will first be inserted into the mounting hole of the circuit board 2. The circuit board 2 generally has four mounting holes. The circuit board 2 first limits the two mounting holes through the third positioning rod 8015 on the main support assembly 801, and then passes through the second positioning plate 7042 to insert into the two mounting holes on the right. After the second flip frame 704 is flipped, the two mounting holes on the left are at the top and are limited by the first positioning rod 7033. After the first positioning rod 7033 is reset, the positions of the two rows of mounting holes change relatively. At this time, the leftmost mounting hole of the circuit board 2 can be inserted into the third positioning rod 8015 of the main support assembly 801, and the main support assembly 801 and the auxiliary support block 802 can wait at the position after the first flip frame 703 is flipped through the mounting plate 706, thereby achieving the purpose of positioning the circuit board 2 during flipping, facilitating the subsequent processing of the circuit board 2, and the transmission speed of the conveyor belt 3 can be faster than the rotation speed of the first flip frame 703 and the second flip frame 704.

[0039] Preferably, a first rack 9 and a second rack 10 are fixedly connected to the side of the detection box 1 , the first rack 9 and the second rack 10 are centrally symmetrical, and both the first rack 9 and the second rack 10 are meshed with the gear 8013 .

[0040] Preferably, after the circuit board 2 on the main support assembly 801 is turned over by the second turning frame 704, the slider 8014 of the main support assembly 801 will interfere with the fixing rod 705 and cannot pass through the mounting plate 706. At this time, the gear 8013 will first contact the first rack 9, and the gear 8013 will rotate after contacting the first rack 9, driving the screw rod 8012 to rotate, and then driving the slider 8014 to rotate backward, shrinking the slider 8014 and the third positioning rod 8015, and the width of the main support assembly 801 shrinks to be smaller than the third positioning rod 8015. The gap between a flip frame 703 and the detection box 1 can be sufficient, and the width of the auxiliary support block 802 can be smaller than the gap between the first flip frame 703 and the detection box 1, as long as it does not affect the support of the circuit board 2. At this time, the main support component 801 can pass through the mounting plate 706, and then reverse through the second rack 10 after passing through the first flip frame 703, driving the slider 8014 and the third positioning rod 8015 to extend, which is convenient for the subsequent support and positioning of the circuit board 2. Through the mechanical transmission method, both accuracy is guaranteed and the operation is relatively simple and practical.

[0041] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the usual designs.

[0042] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0043] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A detection device for HDI circuit boards after electroplating, comprising a detection box (1) and a conveyor belt (3), characterized in that: A detection component (5) is installed inside the detection box (1), an alarm light (6) is installed on the top of the detection box (1), the bottom of the detection box (1) is fixedly installed with a mounting frame on the side of the conveyor belt (3), the lower end of the conveyor belt (3) is installed on the ground through a fixing frame (4), the upper end of the conveyor belt (3) is fixedly connected with a plurality of support components (8), the upper ends of the plurality of support components (8) are clamped with circuit boards (2), and a flip component (7) is installed in the middle of the conveyor belt (3).

2. The detection device for HDI circuit board after electroplating according to claim 1, characterized in that: The detection component (5) comprises a cylinder (501), wherein the cylinder (501) is mounted on the top of the detection box (1), the output end of the cylinder (501) passes through a fixed plate (502) and the lower end is fixedly connected to an industrial camera (504), a plurality of guide rods (503) are slidably sleeved around the four sides of the industrial camera (504), and the four guide rods (503) are fixedly connected to the fixed plate (502), and two fill lights (505) are installed on the top of the detection box (1), and the industrial camera (504) is located between the two fill lights (505).

3. The detection device for HDI circuit board after electroplating according to claim 1, characterized in that: The turning assembly (7) comprises a main motor (701), the output end of the main motor (701) is fixedly connected to a crankshaft (707), the crankshaft (707) is rotatably sleeved with two groups of pushing assemblies (702), the two groups of pushing assemblies (702) are respectively rotatably sleeved with a first turning frame (703) and a second turning frame (704), a fixing rod (705) is rotatably sleeved between the two groups of the first turning frames (703) and the second turning frames (704), and both sides of the fixing rod (705) are fixedly connected to the mounting frame of the conveyor belt (3) via mounting plates (706).

4. The detection device for HDI circuit board after electroplating according to claim 3, characterized in that: The crankshaft (707) is provided with two groups of first cranks (7071) and second cranks (7072) respectively matched with the propulsion assembly (702); the first cranks (7071) and the second cranks (7072) are centrally symmetrically distributed; the two groups of first cranks (7071) and second cranks (7072) are symmetrically distributed; some of the first cranks (7071) away from the main motor (701) are rotatably sleeved with the mounting frame of the conveyor belt (3) via bearings.

5. The detection device for HDI circuit board after electroplating according to claim 4, characterized in that: The pushing assembly (702) comprises a first push rod (7021) and a second push rod (7022); the first push rod (7021) is rotatably sleeved with a first crank (7071) via a sleeve; a side of the first push rod (7021) away from the first crank (7071) is rotatably sleeved with a first flip frame (703); the second push rod (7022) is rotatably sleeved with a second crank (7072) via a sleeve; and an end of the pushing assembly (702) away from the second crank (7072) is rotatably sleeved with a second flip frame (704).

6. The detection device for HDI circuit board after electroplating according to claim 5, characterized in that: The first flip frame (703) comprises a first rotating disk (7031), a first positioning plate (7032) and a first rotating plate (7034) being fixedly connected to a side of the first rotating disk (7031), the first rotating plate (7034) being rotatably sleeved with a second crank (7072), a first positioning rod (7033) being mounted on a side of the first positioning plate (7032) away from the first rotating disk (7031), the first positioning rod (7033) being matched with a mounting hole of the circuit board (2).

7. The detection device for HDI circuit board after electroplating according to claim 5, characterized in that: The second flip frame (704) comprises a second rotating disk (7041), a second positioning plate (7042) and a second rotating plate (7044) are fixedly connected to the side of the second rotating disk (7041), a second positioning rod (7043) is installed on the side of the second positioning plate (7042) close to the second rotating disk (7041), and the second positioning rod (7043) is matched with the mounting hole of the circuit board (2).

8. The detection device for HDI circuit board after electroplating according to claim 1, characterized in that: The support assembly (8) comprises a main support assembly (801) and an auxiliary support block (802), and the main support assembly (801) and the auxiliary support block (802) are both fixedly mounted on the conveyor belt (3); The main support assembly (801) comprises a main support block (8011), the main support block (8011) being fixedly mounted on the circuit board (2), a screw rod (8012) being rotatably sleeved on the middle portion of the main support block (8011) via a bearing, the screw rod (8012) passing through the main support block (8011) and being fixedly connected to a gear (8013), a slider (8014) being threadedly sleeved on a side of the screw rod (8012) away from the gear (8013), a third positioning rod (8015) being fixedly connected on a side of the slider (8014) away from the gear (8013), the third positioning rod (8015) being matched with a mounting hole of the circuit board (2).

9. The detection device for HDI circuit board after electroplating according to claim 8, characterized in that: A first rack (9) and a second rack (10) are fixedly connected to the side of the detection box (1); the first rack (9) and the second rack (10) are centrally symmetrical; and both the first rack (9) and the second rack (10) are meshed with the gear (8013).

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