Circuit board surface defect detection device

Abstract

The utility model relates to the technical field of circuit board detection, and discloses a circuit board surface defect detection device, which solves the problem that the defect detection on the two surfaces of a circuit board is inconvenient at present, and comprises a frame, an adjusting mechanism and a locking mechanism are arranged on the frame, and a second electric slide rail is fixedly arranged at the top of the frame. An L-shaped frame is fixedly installed on the top of the second sliding seat, a first electric sliding rail is fixedly installed on the inner side of the L-shaped frame, a first sliding seat is slidably connected to the outer side of the first electric sliding rail, an air cylinder is fixedly installed at the bottom of the first sliding seat, and a visual detector is arranged at the bottom end of the air cylinder; the adjusting mechanism comprises an inner shaft rotationally connected to the inner side of the frame, one end of the inner shaft is fixedly connected with a first L-shaped plate, and the first L-shaped plate is fixedly connected with a first U-shaped round rod; according to the utility model, the circuit board does not need to be disassembled and fixed again, so that defect detection can be quickly carried out on two surfaces of the circuit board.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board testing technology, specifically a circuit board surface defect detection device. Background Technology

[0002] A circuit board (PCB) is a plate-shaped substrate used to support and connect electronic components. It has printed wires, electronic components, connection points, etc., to realize circuit connections and signal transmission. PCBs can be designed and manufactured according to circuit requirements. During the PCB manufacturing process, surface defect detection is required to ensure the final product's performance. According to the patent document with authorization announcement number CN209432723U, entitled "A Circuit Board Defect Detection Device," the provided fixing device can fix the PCB to be inspected, preventing significant movement of the inspection table due to external forces during inspection, thus ensuring more stable inspection and improving efficiency. However, the following drawbacks still exist:

[0003] The circuit board is fixed between the first fixing plate and the testing table. After the defects on the top surface of the circuit board are detected, the circuit board needs to be disassembled, flipped and refixed for defects on the other side. This makes the operation cumbersome and inconvenient to quickly detect defects on both sides of the circuit board. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a circuit board surface defect detection device, which effectively solves the problem that it is currently inconvenient to quickly detect defects on both sides of the circuit board.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circuit board surface defect detection device, comprising a frame, wherein the frame is provided with an adjustment mechanism and a locking mechanism, an electric slide rail two is fixedly installed on the top of the frame, a slide block two is slidably connected on the electric slide rail two, an L-shaped frame is fixedly installed on the top of the slide block two, an electric slide rail one is fixedly installed on the inner side of the L-shaped frame, a slide block one is slidably connected on the outer side of the electric slide rail one, a cylinder is fixedly installed on the bottom of the slide block one, and a visual inspection instrument is provided at the bottom end of the cylinder;

[0006] The adjustment mechanism includes an inner shaft rotatably connected to the inside of the frame. One end of the inner shaft is fixedly connected to an L-shaped plate, and a U-shaped rod is fixedly connected to the L-shaped plate. An L-shaped plate is movably sleeved on the outside of the U-shaped rod. Rubber pads are fixedly connected to the inside of both the L-shaped plate and the L-shaped plate. A sleeve block is fixedly sleeved on the middle of the outer side of the U-shaped rod. A drive shaft is rotatably connected to the side of the sleeve block away from the L-shaped plate. The U-shaped rod is fixedly connected to the outside of the frame. A sleeve plate is fixedly sleeved on the middle of the outer side of the U-shaped rod. The end of the drive shaft away from the sleeve block extends to the outside of the frame and is rotatably connected to the sleeve plate.

[0007] Preferably, a movable frame is movably sleeved on the outer side of the second U-shaped rod, a toothed plate is fixedly connected on the movable frame, a gear is fixedly installed on the outer side of the drive shaft, the gear meshes with the toothed plate, a positioning ring one and a positioning ring two are symmetrically fixedly sleeved on the outer side of the second U-shaped rod, the movable frame is located between the positioning ring one and the positioning ring two, and the movable frame abuts against the positioning ring two.

[0008] Preferably, two L-shaped round rods are symmetrically fixedly connected to the inner side of the movable frame, and a lifting plate located above the sleeve plate is movably sleeved between the two L-shaped round rods. A handle is fixedly connected to the outer side of the lifting plate, and an insert block is fixedly installed at the bottom of the lifting plate. Two springs are symmetrically fixedly connected between the top of the lifting plate and the movable frame, and the two springs are respectively sleeved on the outer side of the two L-shaped round rods.

[0009] Preferably, the top of the sleeve plate is symmetrically provided with slot one and slot two, and the insert block is inserted into slot one.

[0010] Preferably, the locking mechanism includes a side plate fixed to the outside of the L-shaped plate two, a limit block fixedly connected to the side of the side plate away from the L-shaped plate two, and the side plate passing through the sleeve block and movably connected to the sleeve block.

[0011] Preferably, the top of the side plate is provided with a plurality of screw holes evenly distributed, and the top of the sleeve block is provided with bolts that are adapted to each screw hole, and the bolt threads are threaded into the corresponding screw holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model facilitates the rotation of the drive shaft through the cooperation between the movable frame, the second U-shaped round rod, the gear, and the toothed plate. This allows the circuit board clamped between the first and second L-shaped plates to be flipped. Furthermore, the cooperation between the L-shaped round rod, the lifting plate, and the spring facilitates the insertion of the insert block into the first or second slot. This enables the circuit board to be fixed after flipping without disassembling and re-fixing it, thus facilitating rapid defect detection on both sides of the circuit board.

[0014] 2. This new type of device facilitates the movement of the L-shaped plate two and the U-shaped rod one, as well as the cooperation between the side plate and the sleeve block, so that the L-shaped plate two can move and abut against the circuit board placed on the L-shaped plate one. The cooperation between the screw holes and bolts can fix the side plate and the sleeve block, thereby fixing the position of the L-shaped plate two to prevent it from moving, thus facilitating the clamping and fixing of the circuit board. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the circuit board surface defect detection device of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the movable frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sleeve structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the locking mechanism of this utility model.

[0022] In the diagram: 1. Frame; 2. Adjustment mechanism; 201. Inner shaft; 202. L-shaped plate one; 203. L-shaped plate two; 204. Sleeve block; 205. Movable frame; 206. Drive shaft; 207. U-shaped round rod one; 208. Rubber pad; 209. Lifting plate; 2010. Gear; 2011. L-shaped round rod; 2012. Spring; 2013. Positioning ring one; 2014. Sleeve plate; 2015. Handle 2016, Insert block; 2017, Positioning ring II; 2018, U-shaped round rod II; 2019, Toothed plate; 2020, Slot I; 2021, Slot II; 3, Locking mechanism; 301, Side plate; 302, Limiting block; 303, Screw hole; 304, Bolt; 4, Vision inspection instrument; 5, Cylinder; 6, Slide I; 7, Electric slide rail I; 8, L-shaped frame; 9, Slide II; 10, Electric slide rail II. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figure 1 This utility model relates to a circuit board surface defect detection device, including a frame 1, an adjustment mechanism 2 and a locking mechanism 3 on the frame 1, an electric slide rail 2 10 fixedly installed on the top of the frame 1, a slide block 2 9 slidably connected to the electric slide rail 2 10, an L-shaped frame 8 fixedly installed on the top of the slide block 2 9, an electric slide rail 1 7 fixedly installed on the inner side of the L-shaped frame 8, a slide block 6 slidably connected to the outer side of the electric slide rail 1 7, a cylinder 5 fixedly installed on the bottom of the slide block 1 6, and a vision inspection instrument 4 at the bottom of the cylinder 5. The vision inspection instrument 4 uses a high-resolution camera and image processing technology to detect defects on the surface of the circuit board. Through the cooperation between the slide block 2 9 and the electric slide rail 2 10, as well as between the electric slide rail 1 7 and the slide block 6, the position of the vision inspection instrument 4 can be easily adjusted, thereby facilitating defect detection at different locations on the surface of the circuit board.

[0025] Specifically, by Figure 2-4The adjustment mechanism 2 includes an inner shaft 201 rotatably connected to the inner side of the frame 1. One end of the inner shaft 201 is fixedly connected to an L-shaped plate 202. A U-shaped rod 207 is fixedly connected to the L-shaped plate 202. An L-shaped plate 203 is movably sleeved on the outer side of the U-shaped rod 207. Rubber pads 208 are fixedly connected to the inner sides of both the L-shaped plate 202 and the L-shaped plate 203. When the L-shaped plate 202 and the L-shaped plate 203 clamp and fix the circuit board, the two rubber pads 208 respectively adhere to the two sides of the circuit board. A sleeve block 204 is fixedly sleeved on the outer middle of the U-shaped round rod 207. A drive shaft 206 is rotatably connected to the side of the sleeve block 204 away from the L-shaped plate 203. A U-shaped round rod 2018 is fixedly connected to the outer side of the frame 1. A sleeve plate 2014 is fixedly sleeved on the outer middle of the U-shaped round rod 2018. The end of the drive shaft 206 away from the sleeve block 204 extends to the outer side of the frame 1 and is rotatably connected to the sleeve plate 2014. A movable frame 205 is movably sleeved on the outer side of the U-shaped round rod 2018. A fixed... A gear 2010 is fixedly installed on the outer side of the drive shaft 206, connected to a toothed plate 2019. The gear 2010 meshes with the toothed plate 2019. A positioning ring 2013 and a positioning ring 2017 are symmetrically fixedly sleeved on the outer side of the U-shaped round rod 2018. The movable frame 205 is located between the positioning ring 2013 and the positioning ring 2017, and the movable frame 205 abuts against the positioning ring 2017. Two L-shaped round rods 2011 are symmetrically fixedly connected to the inner side of the movable frame 205. A lifting plate 209 is movably connected above the sleeve plate 2014. A handle 2015 is fixedly connected to the outside of the lifting plate 209. An insert block 2016 is fixedly installed at the bottom of the lifting plate 209. Two springs 2012 are symmetrically fixedly connected between the top of the lifting plate 209 and the movable frame 205. The two springs 2012 are respectively sleeved on the outside of two L-shaped round rods 2011. The top of the sleeve plate 2014 is symmetrically provided with slot one 2020 and slot two 2021. The insert block 2016 is inserted into slot one 2020.

[0026] In the initial state, the insert 2016 is inserted into slot one 2020, and the movable frame 205 abuts against the positioning ring two 2017. The circuit board, which is clamped between L-shaped plate one 202 and L-shaped plate two 203, is horizontally located inside frame 1, allowing for defect detection on the top surface of the circuit board. When the defect detection on the top surface of the circuit board is completed, first, hold the handle 2015 and slide the lifting plate 209 upward along the two L-shaped round rods 2011. At this time, both springs 2012 are compressed, causing the insert 2016 to rise and move out of slot one 2020. Then, the movable frame 205 slides along U-shaped round rod two 2018, causing the toothed plate 2 to move upward. 019 moves horizontally. Due to the meshing connection between the toothed plate 2019 and the gear 2010, the drive shaft 206 rotates, and the circuit board flips accordingly. When the movable frame 205 abuts against the positioning ring 2013, the circuit board flips 180° and is horizontally positioned inside the frame 1 again. Then, the handle 2015 is released, and the lifting plate 209 slides down along the two L-shaped rods 2011 under the action of the elastic force of the two springs 2012, driving the insert block 2016 to descend and insert into the slot 2021, thus fixing the circuit board after flipping. Defect detection can be performed on the other side of the circuit board. Finally, defect detection can be quickly performed on both sides of the circuit board.

[0027] Specifically, by Figure 5 The locking mechanism 3 includes a side plate 301 fixed to the outside of the L-shaped plate 203. A limit block 302 is fixedly connected to the side of the side plate 301 away from the L-shaped plate 203. The side plate 301 passes through the sleeve block 204 and is movably connected to the sleeve block 204. The top of the side plate 301 is evenly provided with a plurality of screw holes 303. The top of the sleeve block 204 is provided with bolts 304 that are adapted to each screw hole 303, and the bolts 304 are threaded into the corresponding screw holes 303.

[0028] In use, first place one side of the circuit board on L-shaped plate 202, then slide L-shaped plate 203 along U-shaped rod 207 to move side plate 301 until L-shaped plate 203 and L-shaped plate 202 clamp the circuit board. Then fix side plate 301 and sleeve block 204 with bolts 304 to limit L-shaped plate 203 and prevent it from moving. Finally, fix the circuit board.

Claims

1. A line board surface defect detection apparatus comprising a frame (1), characterized in that: The frame (1) is provided with an adjusting mechanism (2) and a locking mechanism (3), the top of the frame (1) is fixedly provided with an electric slide rail two (10), the electric slide rail two (10) is slidably connected with a slide seat two (9), the top of the slide seat two (9) is fixedly provided with an L-shaped frame (8), the inner side of the L-shaped frame (8) is fixedly provided with an electric slide rail one (7), the outer side of the electric slide rail one (7) is slidably connected with a slide seat one (6), the bottom of the slide seat one (6) is fixedly provided with an air cylinder (5), and the bottom end of the air cylinder (5) is provided with a visual detector (4). The adjusting mechanism (2) comprises an inner shaft (201) rotatably connected to the inner side of the frame (1), one end of the inner shaft (201) is fixedly connected with an L-shaped plate one (202), the L-shaped plate one (202) is fixedly connected with a U-shaped round rod one (207), the outer side of the U-shaped round rod one (207) is movably sleeved with an L-shaped plate two (203), the inner sides of the L-shaped plate two (203) and the L-shaped plate one (202) are fixedly connected with rubber pads (208), the outer side of the U-shaped round rod one (207) is fixedly sleeved with a sleeve block (204), the sleeve block (204) is rotatably connected with a drive shaft (206) away from the side of the L-shaped plate two (203), the outer side of the frame (1) is fixedly connected with a U-shaped round rod two (2018), the outer side of the U-shaped round rod two (2018) is fixedly sleeved with a sleeve plate (2014), and the end of the drive shaft (206) away from the sleeve block (204) extends to the outer side of the frame (1) and is rotatably connected with the sleeve plate (2014).

2. The apparatus according to claim 1, wherein: The outer side of the U-shaped round rod two (2018) is movably sleeved with a movable frame (205), the movable frame (205) is fixedly connected with a toothed plate (2019), the outer side of the drive shaft (206) is fixedly provided with a gear (2010), the gear (2010) is rotatably connected with the toothed plate (2019), the outer side of the U-shaped round rod two (2018) is fixedly sleeved with a positioning ring one (2013) and a positioning ring two (2017), the movable frame (205) is located between the positioning ring one (2013) and the positioning ring two (2017), and the movable frame (205) abuts against the positioning ring two (2017).

3. The apparatus according to claim 2, wherein: The inner side of the movable frame (205) is fixedly connected with two L-shaped round rods (2011), the movable frame (205) is movably sleeved with a lifting plate (209) located above the sleeve plate (2014) between the two L-shaped round rods (2011), the outer side of the lifting plate (209) is fixedly connected with a handle (2015), the bottom of the lifting plate (209) is fixedly provided with an insertion block (2016), and the top of the lifting plate (209) is fixedly connected with two springs (2012) between the movable frame (205), and the two springs (2012) are sleeved on the outer sides of the two L-shaped round rods (2011).

4. The apparatus for detecting surface defects of a circuit board according to claim 1, wherein: The top of the sleeve plate (2014) is symmetrically provided with an insertion slot one (2020) and an insertion slot two (2021), and the insertion block (2016) is inserted into the insertion slot one (2020).

5. The apparatus for detecting surface defects of a circuit board according to claim 1, wherein: The locking mechanism (3) comprises a side plate (301) fixed to the outer side of the L-shaped plate two (203), and a limiting block (302) is fixedly connected to the side away from the L-shaped plate two (203) of the side plate (301); the side plate (301) penetrates through the sleeve block (204) and is movably connected with the sleeve block (204).

6. The apparatus according to claim 5, wherein: A plurality of screw holes (303) are uniformly arranged on the top of the side plate (301), and the top of the sleeve block (204) is provided with a bolt (304) matched with each screw hole (303), and the bolt (304) is threadedly sleeved in the corresponding screw hole (303).

Images