Automobile electronic PCB detection equipment capable of preventing buried ceramic block or copper block from deviating

Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) detection equipment, and discloses automotive electronic PCB detection equipment for preventing a buried ceramic block or a copper block from deviating, which comprises a detection rack and visual detection equipment used for detecting an automotive electronic PCB, a built-in conveying belt is arranged in an inner cavity of the detection rack, a support frame is fixedly arranged on the back surface of the detection rack, and the support frame is fixedly connected with the embedded ceramic block or the copper block. The visual detection equipment is fixedly installed at the end of the supporting frame, and a circuit board classification mechanism is arranged at the top of the detection rack. Through the overall design of the circuit board positioning mechanism, the telescopic air cylinder is controlled to stretch, the limiting strip rods can be driven to move downwards, the limiting strip rods can limit the circuit board moving on the built-in conveying belt, then the clamping air cylinder is controlled to stretch, the two clamping strip rods can be driven to move in the opposite directions, and the circuit board positioning mechanism can be used for positioning the circuit board. The circuit board clamping device realizes a function of clamping the circuit board, and meanwhile, adjusts the position of the circuit board to enable the circuit board to tend to a standard detection position, so that the accuracy of subsequent visual detection work is improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB testing equipment technology, specifically to automotive electronic PCB testing equipment for preventing the misalignment of embedded ceramic blocks or copper blocks. Background Technology

[0002] Automotive electronic PCBs are circuit boards specifically designed for automotive electronic systems. They are used to carry and connect various electronic components, realize signal transmission, power distribution and function control. They are characterized by high reliability, multi-layer complex wiring design, and must meet automotive-grade standards. They are widely used in automotive electronic modules such as engine management, in-vehicle entertainment, and ADAS.

[0003] The core purpose of embedding ceramic or copper blocks in PCBs is to optimize performance. Ceramic blocks, with their high thermal conductivity and low dielectric loss, significantly improve the heat dissipation efficiency and signal integrity of high-frequency devices. Copper blocks, on the other hand, reduce resistance by increasing the conductive cross-sectional area, making them suitable for high-current scenarios. They also balance the coefficient of thermal expansion to reduce board deformation. Together, they solve reliability issues in high-power, high-frequency, and harsh environments, and are typically used in fields such as 5G communication and automotive electronics.

[0004] PCB inspection equipment is a specialized instrument or system used to detect manufacturing defects, performance indicators, and reliability of printed circuit boards. It mainly refers to vision inspection equipment, which automatically checks the installation position of components, soldering quality, and appearance defects based on optical imaging technology, thereby improving inspection efficiency and reducing human error.

[0005] In the circuit board manufacturing process, to address the issue of embedded material misalignment caused by PP (prepreg) flow during lamination or by manual placement, four circular bumps (2 mil high, 3 mil diameter) are now designed at the center of the four sides of the core board's routing groove. These bumps physically limit the embedded material's movement, preventing it from shifting. Visual inspection equipment can identify circuit boards without these circular bumps at the core board's routing groove, thus improving the overall anti-misalignment effect of the embedded material on the circuit board.

[0006] Traditional PCB inspection equipment lacks the function of intercepting and positioning circuit boards. When the circuit board is transported to the inspection range of the vision inspection equipment via a conveyor belt, it is very easy for it to tilt due to equipment vibration and other reasons. If the tilt is large, it will cause too much deviation from the inspection range, which will affect the accuracy of vision inspection. Therefore, those skilled in the art provide automotive electronic PCB inspection equipment that prevents the embedded ceramic block or copper block from shifting to solve the problems mentioned in the background art. Utility Model Content

[0007] The purpose of this invention is to provide an automotive electronic PCB testing device that prevents the embedded ceramic block or copper block from shifting, thereby solving the problems mentioned in the above-mentioned technologies.

[0008] This utility model provides the following technical solution: an automotive electronic PCB inspection device for preventing the misalignment of embedded ceramic blocks or copper blocks, including an inspection frame and a vision inspection device for inspecting automotive electronic PCBs. The inspection frame has an internal conveyor belt, a support frame is fixedly installed on one side of the outer wall of the inspection frame, the vision inspection device is fixedly installed at the end of the support frame, a circuit board sorting mechanism is provided on the top of the inspection frame, and a circuit board positioning mechanism is provided on the circuit board sorting mechanism, with the circuit board positioning mechanism located above the inspection frame.

[0009] As a preferred embodiment of the above technical solution, the circuit board positioning mechanism includes a frame, a crossbar fixedly installed between the front and back sides of the inner wall of the frame, a sliding block slidably connected to the outer wall of the crossbar, clamping cylinders fixedly installed on both sides of the outer wall of the frame, the telescopic ends of the clamping cylinders extending into the inner cavity of the frame, and the telescopic ends of the clamping cylinders being fixedly connected to the outer wall of the sliding block, a connecting arm fixedly installed on the side wall of the sliding block, a clamping bar fixedly installed at the end of the connecting arm away from the sliding block, and support legs fixedly installed on both the front and back sides of the frame.

[0010] As a preferred embodiment of the above technical solution, reinforcing rods are fixedly installed on both sides of the connecting arm, and the bottom of the reinforcing rods is fixedly connected to the top of the clamping bar.

[0011] As a preferred embodiment of the above technical solution, a side support plate is fixedly installed on the left side of the frame, a telescopic cylinder is fixedly installed on the top of the side support plate, the telescopic end of the telescopic cylinder extends to the bottom of the side support plate and is fixedly connected to a connecting column, and a limit bar is fixedly installed at the bottom of the connecting column.

[0012] As a preferred embodiment of the above technical solution, the circuit board sorting mechanism includes a left fixed seat and a right fixed seat, with two left fixed seats and two right fixed seats. The two left fixed seats are fixedly installed on the top of the inspection frame, and the two right fixed seats are fixedly installed on the top of the inspection frame and located to the right of the left fixed seats.

[0013] As a preferred embodiment of the above technical solution, a lead screw is rotatably connected between adjacent sides of the two sets of left and right fixed seats, a servo motor is fixedly installed on the right side of each of the two right fixed seats, the output shaft of the servo motor is fixedly connected to the end of the lead screw, a sliding seat is slidably connected to the outer wall of the lead screw, and a support leg is fixedly installed on the top of the sliding seat.

[0014] As a preferred embodiment of the above technical solution, the circuit board sorting mechanism further includes a support member, which is fixedly installed on the top of the testing frame, and a temporary storage frame is fixedly installed on the end of the support member away from the testing frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through the overall design of the circuit board positioning mechanism, controls the telescopic cylinder to extend, which can drive the limiting bar to move down. The limiting bar can limit the circuit board moving on the built-in conveyor belt. Then, the clamping cylinder is controlled to extend, which can drive the two clamping bars to move in opposite directions, realizing the function of clamping the circuit board. At the same time, the position of the circuit board is adjusted to make it tend to the standard detection position, thereby improving the accuracy of subsequent visual inspection work.

[0017] 2. Through the overall design of the circuit board sorting mechanism, this utility model identifies circuit boards with defects. While the circuit board is held by the circuit board positioning mechanism, the servo motor is controlled to work, driving the lead screw to rotate and causing the circuit board positioning mechanism to slide to the upper right. Then, the circuit board positioning mechanism is controlled to release the circuit board, which will slide into the inner cavity of the temporary storage frame under the action of gravity, realizing the function of automatic rejection, reducing the consumption of manpower, and increasing the automation level of this structure. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of an automotive electronics PCB testing device designed to prevent misalignment of embedded ceramic or copper blocks.

[0019] Figure 2 A schematic diagram of the circuit board positioning mechanism in automotive electronic PCB testing equipment to prevent the ceramic or copper blocks from shifting.

[0020] Figure 3 A schematic diagram of the side support plate in automotive electronic PCB testing equipment to prevent the embedded ceramic or copper blocks from shifting.

[0021] Figure 4 A schematic diagram of the circuit board sorting mechanism in automotive electronic PCB testing equipment to prevent the ceramic or copper blocks from shifting.

[0022] Legend:

[0023] 1. Inspection frame; 11. Built-in conveyor belt; 12. Support frame; 13. Vision inspection equipment; 2. Circuit board positioning mechanism; 21. Support leg; 22. Frame; 23. Crossbar; 24. Clamping cylinder; 25. Sliding block; 26. Connecting arm; 27. Clamping bar; 28. Reinforcing bar; 29. ​​Side support plate; 291. Telescopic cylinder; 292. Connecting column; 293. Limiting bar; 3. Circuit board sorting mechanism; 31. Left fixed seat; 32. Right fixed seat; 33. Lead screw; 34. Servo motor; 35. Sliding seat; 36. Support component; 37. Temporary storage frame. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figures 1-4 As shown, this utility model provides a technical solution: an automotive electronic PCB inspection device for preventing the misalignment of embedded ceramic blocks or copper blocks, including an inspection frame 1 and a vision inspection device 13 for inspecting automotive electronic PCBs. An internal conveyor belt 11 is provided in the inner cavity of the inspection frame 1. A support frame 12 is fixedly installed on one side of the outer wall of the inspection frame 1. The vision inspection device 13 is fixedly installed at the end of the support frame 12. A circuit board sorting mechanism 3 is provided on the top of the inspection frame 1. A circuit board positioning mechanism 2 is provided on the circuit board sorting mechanism 3. The circuit board positioning mechanism 2 is located above the inspection frame 1.

[0026] As one implementation method in this embodiment, please refer to Figure 2 As shown, the circuit board positioning mechanism 2 includes a frame 22. A crossbar 23 is fixedly installed between the front and back sides of the inner wall of the frame 22. A sliding block 25 is slidably connected to the outer wall of the crossbar 23. Clamping cylinders 24 are fixedly installed on both sides of the outer wall of the frame 22. The telescopic ends of the clamping cylinders 24 extend into the inner cavity of the frame 22 and are fixedly connected to the outer wall of the sliding block 25. A connecting arm 26 is fixedly installed on the side wall of the sliding block 25. A clamping bar 27 is fixedly installed at the end of the connecting arm 26 away from the sliding block 25. Support legs 21 are fixedly installed on both the front and back sides of the frame 22. After the circuit board is limited in its movement at the top of the built-in conveyor belt 11, the two clamping cylinders 24 are controlled to extend simultaneously, causing the sliding block 25 to slide on the outer wall of the crossbar 23. Through the transmission of the connecting arm 26, the two clamping bars 27 can be driven to move in opposite directions to achieve the function of clamping the circuit board. At the same time, the position of the circuit board is adjusted to make it tend to the standard detection position, thereby improving the accuracy of subsequent visual inspection work.

[0027] As one implementation method in this embodiment, please refer to Figure 2 As shown, reinforcing rods 28 are fixedly installed on both sides of the connecting arm 26. The bottom of the reinforcing rod 28 is fixedly connected to the top of the clamping bar 27. Through the design of the reinforcing rod 28, the connection between the connecting arm 26 and the clamping bar 27 can be reinforced.

[0028] As one implementation method in this embodiment, please refer to Figure 1 and Figure 2As shown, a side support plate 29 is fixedly installed on the left side of the frame 22. A telescopic cylinder 291 is fixedly installed on the top of the side support plate 29. The telescopic end of the telescopic cylinder 291 extends to the bottom of the side support plate 29 and is fixedly connected to a connecting column 292. A limit bar 293 is fixedly installed at the bottom of the connecting column 292. By controlling the telescopic cylinder 291 to extend, the limit bar 293 can be moved down. The limit bar 293 can limit the movement of the circuit board on the built-in conveyor belt 11. After the circuit board has finished clamping, the telescopic cylinder 291 can be reset.

[0029] As one implementation method in this embodiment, please refer to Figure 4 As shown, the circuit board sorting mechanism 3 includes a left fixed seat 31 and a right fixed seat 32. The number of left fixed seats 31 and right fixed seats 32 is set to two. The two left fixed seats 31 are fixedly installed on the top of the inspection frame 1, and the two right fixed seats 32 are fixedly installed on the top of the inspection frame 1 and located to the right of the left fixed seat 31. The design of the left fixed seat 31 and right fixed seat 32 facilitates the tilting support of the lead screw 33.

[0030] As one implementation method in this embodiment, please refer to Figure 4 As shown, each of the two sets of left fixed seats 31 and right fixed seats 32 is rotatably connected to a lead screw 33 on one side. A servo motor 34 is fixedly installed on the right side of each of the two right fixed seats 32. The output shaft of the servo motor 34 is fixedly connected to the end of the lead screw 33. A sliding seat 35 is slidably connected to the outer wall of the lead screw 33. The support leg 21 is fixedly installed on the top of the sliding seat 35. After identifying that the circuit board has defects, while the circuit board is clamped by the circuit board positioning mechanism 2, the two servo motors 34 are controlled to work simultaneously, driving the lead screw 33 to rotate, causing the circuit board positioning mechanism 2 to slide to the upper right as a whole, thus moving the circuit board.

[0031] As one implementation method in this embodiment, please refer to Figure 4 As shown, the circuit board sorting mechanism 3 also includes a support member 36, which is fixedly installed on the top of the inspection frame 1. A temporary storage frame 37 is fixedly installed at the end of the support member 36 away from the inspection frame 1. After the clamped circuit board moves to the upper right, the circuit board positioning mechanism 2 is then controlled to release the circuit board. The circuit board will slide into the inner cavity of the temporary storage frame 37 under the action of gravity, realizing the function of automatic rejection. The temporary storage frame 37 is tilted to the lower right as a whole, and the circuit board can slide to the right side of the inner cavity of the temporary storage frame 37, making it easy for workers to take it out.

[0032] Working Principle: In use, this structure is installed on the circuit board production line, allowing the circuit boards to move over the top of the built-in conveyor belt 11. The telescopic cylinder 291 is pre-controlled to extend, causing the limiting bar 293 to move downwards. The limiting bar 293 limits the movement of the circuit board on the built-in conveyor belt 11. Then, the clamping cylinder 24 is controlled to extend, causing the two clamping bars 27 to move in opposite directions, clamping the circuit board. The telescopic cylinder 291 is then reset. Following this, the circuit board is visually inspected using the vision inspection equipment 13, which detects the core board's routing grooves. Whether a circular protrusion is provided at the location determines whether the circuit board is defective. If the circuit board is of acceptable quality, the clamping cylinder 24 is reset and the circuit board is released directly by the built-in conveyor belt 11. If the circuit board is defective, the two servo motors 34 are controlled to work simultaneously, driving the lead screw 33 to rotate, causing the circuit board positioning mechanism 2 to slide to the upper right, while moving the circuit board. Then the clamping cylinder 24 is reset, and the circuit board will slide into the inner cavity of the temporary storage frame 37 under the action of gravity, realizing the function of automatic rejection. Then the servo motor 34 is controlled to work again to reset the circuit board positioning mechanism 2.

[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An automotive electronic PCB inspection device for preventing misalignment of embedded ceramic blocks or copper blocks, comprising an inspection frame (1) and a vision inspection device (13) for inspecting automotive electronic PCBs, characterized in that: The inner cavity of the inspection frame (1) is provided with a built-in conveyor belt (11), and a support frame (12) is fixedly installed on one side of the outer wall of the inspection frame (1). The visual inspection device (13) is fixedly installed at the end of the support frame (12). A circuit board sorting mechanism (3) is provided on the top of the inspection frame (1), and a circuit board positioning mechanism (2) is provided on the circuit board sorting mechanism (3). The circuit board positioning mechanism (2) is located above the inspection frame (1).

2. The automotive electronic PCB testing equipment for preventing misalignment of embedded ceramic blocks or copper blocks according to claim 1, characterized in that: The circuit board positioning mechanism (2) includes a frame (22), a crossbar (23) is fixedly installed between the front and back of the inner wall of the frame (22), a sliding block (25) is slidably connected to the outer wall of the crossbar (23), a clamping cylinder (24) is fixedly installed on both sides of the outer wall of the frame (22), the telescopic end of the clamping cylinder (24) extends into the inner cavity of the frame (22), the telescopic end of the clamping cylinder (24) is fixedly connected to the outer wall of the sliding block (25), a connecting arm (26) is fixedly installed on the side wall of the sliding block (25), a clamping bar (27) is fixedly installed at the end of the connecting arm (26) away from the sliding block (25), and a support leg (21) is fixedly installed on both the front and back of the frame (22).

3. The automotive electronic PCB testing equipment for preventing misalignment of embedded ceramic blocks or copper blocks according to claim 2, characterized in that: Both sides of the connecting arm (26) are fixedly installed with reinforcing rods (28), and the bottom of the reinforcing rods (28) is fixedly connected to the top of the clamping bar (27).

4. The automotive electronic PCB testing equipment for preventing misalignment of embedded ceramic blocks or copper blocks according to claim 2, characterized in that: A side support plate (29) is fixedly installed on the left side of the frame (22). A telescopic cylinder (291) is fixedly installed on the top of the side support plate (29). The telescopic end of the telescopic cylinder (291) extends to the bottom of the side support plate (29) and is fixedly connected to a connecting column (292). A limit bar (293) is fixedly installed at the bottom of the connecting column (292).

5. The automotive electronic PCB testing equipment for preventing misalignment of embedded ceramic blocks or copper blocks according to claim 1, characterized in that: The circuit board sorting mechanism (3) includes a left fixed seat (31) and a right fixed seat (32). The number of the left fixed seat (31) and the right fixed seat (32) is set to two. The two left fixed seats (31) are fixedly installed on the top of the inspection frame (1), and the two right fixed seats (32) are fixedly installed on the top of the inspection frame (1) and located to the right of the left fixed seat (31).

6. The automotive electronic PCB testing equipment for preventing misalignment of embedded ceramic blocks or copper blocks according to claim 5, characterized in that: Both sets of left fixed seats (31) and right fixed seats (32) are rotatably connected to each other on one side. Both right fixed seats (32) are fixedly installed with servo motors (34) on the right side. The output shaft of the servo motor (34) is fixedly connected to the end of the lead screw (33). A sliding seat (35) is slidably connected to the outer wall of the lead screw (33). The support leg (21) is fixedly installed on the top of the sliding seat (35).

7. The automotive electronic PCB testing equipment for preventing misalignment of embedded ceramic blocks or copper blocks according to claim 6, characterized in that: The circuit board sorting mechanism (3) also includes a support member (36), which is fixedly installed on the top of the testing frame (1). A temporary storage frame (37) is fixedly installed on the end of the support member (36) away from the testing frame (1).

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