Core board defect automatic detection device and method

Abstract

The invention relates to a core board defect automatic detection device and method, and relates to the technical field of core board detection. Comprising a supporting plate, lifting frames are symmetrically arranged on the supporting plate through telescopic rods, movable structures are arranged on the lifting frames, and two probes are arranged on the lifting frames. The core board detection device can solve the following problems in the core board detection process in the prior art: firstly, by arranging and adjusting probes on a fixed rod and a sliding rod, the core board detection device can move freely in a range limited by a lifting frame, adapts to different core boards and is wider in application range, adaptability and flexibility are improved, and the core board detection device can cope with complex and changeable circuit board design; and secondly, by arranging a marking structure, when it is detected that the core board has defects, the bonding piece is pressed and bonded to the defective position through the marking structure, technicians are helped to quickly find the specific position of the defects, the repairing efficiency is reduced, and especially in large-scale production, the production cost is remarkably reduced, and the production period is remarkably shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of core board detection, and in particular to a core board defect automatic detection device and method. Background Art

[0002] The core board is a highly integrated circuit board module, mainly used in embedded system development. It integrates core components such as microprocessor, memory, storage, power management circuit, etc., and is usually connected to the baseboard through board-to-board connectors, stamp hole welding, gold fingers, etc.

[0003] As a key component of embedded systems, the core board undertakes important tasks such as driving, computing and control. Through comprehensive testing, the performance of the core board under various workloads can be ensured, including processor performance, memory and storage performance, I / O interface performance, etc. For example, the parameters such as the processor's main frequency, number of cores, cache capacity, as well as the read and write speed and capacity of the memory and storage can be tested to ensure the stability and reliability of the core board in actual applications.

[0004] For example, a Chinese patent with publication number CN109581007B discloses a dual-probe system and a printed circuit board detection device. In the dual-probe system and printed circuit board detection device provided by the patent, a movable probe assembly can be moved along a guide rail assembly driven by a linear drive assembly, thereby adjusting the relative position between the fixed probe assembly and the movable probe assembly, thereby realizing synchronous probing of the dual probes during the printed circuit board detection process, and realizing the detection of multiple printed circuit boards by only moving a single printed circuit board detection device, thereby greatly improving the detection efficiency.

[0005] However, the above device still has some shortcomings in actual use:

[0006] 1. The above device lacks a structure to mark the position after detection, which affects subsequent maintenance. The lack of a marking structure will make it impossible to accurately record and locate the defect position found during the detection process. This will make subsequent defect analysis and repair work difficult, because technicians cannot quickly find the specific location of the defect, and repair personnel need to spend more time locating the defect, which will reduce the efficiency of repair. Especially in large-scale production, this inefficient repair process will significantly increase production costs and production cycles.

[0007] 2. The above device can realize the detection of multiple printed circuit boards by moving only a single printed circuit board detection device. However, the probe cannot automatically set to adapt to any position according to the conditions of different circuit boards, and can only adjust the distance between the two probes in a single direction. The probe can only adjust the distance in a single direction, lacks adaptability and flexibility, cannot cope with complex and changeable circuit board designs, and has a relatively limited scope of application.

[0008] Therefore, under the above-stated point of view, it is of great significance to improve and perfect the circuit board surface defect detection equipment, which can not only mark the defect location, but also adjust the two probes to any position to adapt to different core boards and have a wider range of applications. Summary of the invention

[0009] In order to solve the above problems, the present invention provides a core board defect automatic detection device and method.

[0010] On the one hand, a core board defect automatic detection device includes a support plate, a lifting frame is symmetrically arranged on the support plate through a telescopic rod, a movable structure is arranged on the lifting frame, and two probes are arranged on the lifting frame.

[0011] The lifting frame is provided with a mounting rod consistent with the height direction of the lifting frame through a movable structure, the movable structure includes an adjusting rod, the adjusting rod is rotatably arranged on the mounting rod, a fixing rod is installed at the bottom of the mounting rod, a sliding rod is slidably arranged on the adjusting rod, and the two probes are installed on the fixing rod and the sliding rod.

[0012] The fixed rod and the sliding rod are both provided with a marking structure, the marking structure comprises a supporting rod, and the fixed rod and the sliding rod are both provided with a supporting rod.

[0013] Preferably, a winding roller is provided on the end of the support rod away from the probe, and a pressing plate is provided on the end of the support rod close to the probe along the height direction thereof via a spring for sliding.

[0014] Preferably, a conveying plate and a chopping plate are sequentially arranged on the support rod from the winding roller to the pressing plate, and both the conveying plate and the chopping plate are provided with a conveying channel. A sticky sheet is wound on the winding roller, and the sticky sheet passes through the conveying channel and extends to the bottom of the pressing plate.

[0015] Preferably, two conveying rollers are arranged in the conveying channel on the conveying plate, and one of the conveying rollers is connected to the winding roller through a belt.

[0016] Preferably, a cutter is slidably arranged above the sticky sheet in the conveying channel on the chopping plate, and the cutter is connected to the pressing plate via a synchronization rod.

[0017] Preferably, a mounting roller is arranged on the conveying shaft of the conveying roller, a pull rope is wound around the mounting roller, and the pull rope is connected to the cutter, and an abutment shaft is arranged on the chopping plate, and the side wall of the abutment shaft contacts the pull rope.

[0018] Preferably, the support plate is also provided with a clamping unit for supporting and clamping the core plate, and the clamping unit includes a feeding mechanism and a clamping mechanism.

[0019] The feeding mechanism comprises an L-shaped feeding rod, a feeding groove is provided at one end of the feeding rod away from the support plate, a clamping plate 1 is symmetrically arranged on the feeding rod through a first spring, and one end of the feeding rod close to the support plate is slidably arranged on the support plate.

[0020] Preferably, the clamping mechanism comprises a U-shaped plate, and the U-shaped plate is arranged on a telescopic rod on one side of the support plate, and a clamping plate 2 is symmetrically mounted on the U-shaped plate through a second spring.

[0021] The clamping mechanism also includes a fixing member for fixing and clamping the core board.

[0022] Preferably, the fixing member includes a third screw, and the third screw is rotatably arranged on the support plate along the length direction of the support plate. A movable seat threadedly sleeved on the third screw is slidably arranged on the support plate, and a fixed shaft is installed on the movable seat. Three spring rods are equidistantly arranged along the axis of the fixed shaft at one end away from the movable seat, and an I-shaped block is installed at the telescopic end of the spring rod.

[0023] A fixing ring is symmetrically and slidably arranged on the I-shaped block via a third spring.

[0024] On the other hand, a core board defect automatic detection method is provided, and the automatic detection method is as follows:

[0025] S1, test conveying: the core board is pushed to be fixed between the two clamping plates by moving the feeding rod;

[0026] S2. Test clamping: After the core board is placed, the spring rods are synchronously contracted to drive the I-shaped blocks on the spring rods to gradually clamp the three sides of the core board using the fixing rings;

[0027] S3, probe adjustment: drive the two probes to move above the support plate through the movable structure to detect the core plate fixed above the support plate;

[0028] S4, probe test: drive the lifting frame to move downward, and when the core board is in place, the probe on the lifting frame is aligned with the test part.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The present invention adjusts the fixed rod and the probe on the slide rod to move arbitrarily within the range limited by the lifting frame, adapts to different core boards, has a wider range of applications, improves adaptability and flexibility, and copes with complex and changeable circuit board designs.

[0031] Second, the present invention is provided with a marking structure. When a defect is detected in the core board, the chip is pressed and pasted at the defective position through the marking structure, helping technicians quickly locate the specific position of the defect, reducing the repair efficiency. Especially in large-scale production, the production cost and production cycle are significantly reduced.

[0032] Third, the present invention is provided with a C-shaped rod, a fifth screw rod, and a lifting block. When the core board is placed in place, the entire lifting frame moves downward so that the probe aligns with the part to be tested. Before the core board is placed in place, it prevents the probe from blocking the movement of the core board, resulting in scratches on the probe and damage to the core board. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the drawings and embodiments.

[0034] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0035] Figure 2 is a schematic diagram of the structure on the lifting frame of the present invention.

[0036] Figure 3 is a schematic diagram of the structure of the marking structure of the present invention.

[0037] Figure 4 is a partial schematic diagram of the marking structure of the present invention.

[0038] Figure 5 is a schematic diagram of the structure of the clamping unit of the present invention.

[0039] Figure 6 is a schematic diagram of the structure of the feeding rod of the present invention.

[0040] Figure 7 is a schematic diagram of the structure of the C-shaped plate of the present invention.

[0041] Figure 8 is a partial schematic diagram of the present invention.

[0042] Fig. 9 is the present invention Figure 8 The schematic diagram of the structure at position A in

[0043] Fig.10 is a schematic diagram of the structure of the I-shaped block of the present invention.

[0044] In the figure, 1 is a support plate; 10 is a lifting frame; 11 is a movable structure; 12 is a probe; 13 is a mounting rod; 110 is an adjusting rod; 111 is a fixing rod; 112 is a sliding rod; 113 is a movable rod; 114 is a first screw; 115 is a second screw; 2 is a marking structure; 20 is a support rod; 21 is a winding roller; 22 is a pressing plate; 23 is a conveying plate; 24 is a cutting plate; 25 is an adhesive sheet; 30 is a conveying roller; 31 is a cutter; 32 is a mounting roller; 33 is a pulling rope; 4 is a clamping unit; 40 is a feeding mechanism; 400 is a feeding rod; 401 is a first clamping plate; 41 is a clamping mechanism; 410 is a C-shaped plate; 411 is a second clamping plate; 5 is a fixing member; 50 is a third screw; 51 is a moving seat; 52 is a fixed shaft; 53 is a spring rod; 54 is an I-shaped block; 55 is a fixing ring; 6 is a stretching member; 60 is a fourth screw; 61 is a stretching block; 62 is a stretching rod; 7 is a driving member; 70 is a driving shaft; 71 is a driving rack; 72 is a driving gear; 73 is a first bevel gear; 74 is a second bevel gear; 75 is a driving ring; 76 is a plugging block; 80 is a C-shaped rod; 81 is a fifth screw; 82 is a lifting block; 83 is a synchronizing shaft. Detailed implementation manners

[0045] The following will Figure 1-Figure 10 describe the embodiments of the present invention in detail with reference to the accompanying drawings.

[0046] The embodiments of the present application disclose a core board defect automatic detection device and method. It should be noted that the present invention is mainly applied in the process of core board detection. In terms of technical effects, it can avoid the problem that the lack of a structure for marking the position after detection leads to the inability to accurately record and locate the defect positions found during the detection process, resulting in the inability of technicians to quickly find the specific positions of the defects and reducing the repair efficiency. Further, the present invention can also solve the problem that only the distance between two probes in a single direction can be adjusted, and the probes can only adjust the distance in a single direction, lacking adaptability and flexibility and being unable to cope with complex and changeable circuit board designs.

[0047] Embodiment 1:

[0048] Referring to Figure 1 、 Figure 2 and Figure 3 shown in the figures, a core board defect automatic detection device includes a support plate 1. On the support plate 1, lifting frames 10 are symmetrically arranged through telescopic rods. A movable structure 11 is arranged on the lifting frames 10, and two probes 12 are arranged on the lifting frames 10. The two probes 12 are driven by the movable structure 11 to move above the support plate 1 to detect the core board fixed above the support plate 1.

[0049] A mounting rod 13 which is consistent with the height direction of the lifting frame 10 is provided on the lifting frame 10 through a movable structure 11. The movable structure 11 includes an adjusting rod 110. The adjusting rod 110 is rotatably provided on the mounting rod 13. A fixed rod 111 is installed at the bottom of the mounting rod 13. A sliding rod 112 is slidably provided on the adjusting rod 110. The two probes 12 are installed on the fixed rod 111 and the sliding rod 112.

[0050] The probe 12 installed on the fixed rod 111 and the mounting rod 13 will carry the probe 12 to move along the length direction of the lifting frame 10, and the adjusting rod 110 can also slide on the mounting rod 13 along its length direction, which makes the probe 12 on the fixed rod 111 able to move arbitrarily within the range specified by the lifting frame 10, and the probe 12 on the sliding rod 112 will adjust its rotation angle within the range specified by the lifting frame 10 through the adjusting rod 110, and the sliding rod 112 can adjust the moving distance of the probe 12 on the adjusting rod 110, which makes the probe 12 on the sliding rod 112 able to move arbitrarily within the range specified by the lifting frame 10.

[0051] The fixing rod 111 and the sliding rod 112 are both provided with a marking structure 2, and the marking structure 2 includes an extension rod. In the process of using the probe 12 to detect the core board, if there is a detection problem or defect error, the marking structure 2 is used to mark the problematic area, which is convenient for subsequent staff to perform maintenance.

[0052] The marking structure 2 includes a support rod 20, and both the fixed rod 111 and the sliding rod 112 are provided with the support rod 20. A winding roller 21 is provided at one end of the support rod 20 away from the probe 12, and a pressing plate 22 is provided at one end of the support rod 20 close to the probe 12 along its height direction through a spring sliding. A conveying plate 23 and a chopping plate 24 are sequentially provided on the support rod 20 from the winding roller 21 to the pressing plate 22, and both the conveying plate 23 and the chopping plate 24 are provided with a conveying channel, and an adhesive sheet 25 is wound on the winding roller 21, and the adhesive sheet 25 passes through the conveying channel and extends to the bottom of the pressing plate 22.

[0053] When a defect in the core board is detected, the rotation of the winding roller 21 will send out the adhesive sheet 25 wound on the winding roller 21, which will enter under the pressing plate 22 through the conveying plate 23 and the cutting plate 24 in turn. When one end of the adhesive sheet 25 moves under the pressing plate 22, the adhesive sheet 25 is cut off by the cutting plate 24, and the adhesive sheet 25 is pressed and pasted to the defective position by the moving pressing plate 22.

[0054] It should be noted that a soft elastic structure is provided below the pressing plate 22 to adapt to the uneven shape of the core board and prevent the pressing plate 22 from damaging components on the core board during the downward movement.

[0055] Reference Figure 3and Figure 4 As shown, it is a schematic diagram of the structure of pasting the adhesive sheet 25 on the core board; specifically, two conveying rollers 30 are arranged in the conveying channel on the conveying plate 23, and one of the conveying rollers 30 is connected to the winding roller 21 through a belt. When the winding roller 21 rotates to convey the adhesive sheet 25, the conveying roller 30 rotates synchronously to assist in conveying.

[0056] A cutter 31 is slidably arranged above the sticky sheet 25 in the conveying channel on the chopping plate 24, and the cutter 31 is connected to the pressing plate 22 by a synchronization rod; during the conveying process, the cutter 31 moves downward synchronously, and after moving a certain distance, when one end of the sticky sheet 25 is located below the pressing plate 22, the cutter 31 contacts the sticky sheet 25 to cut off the sticky sheet 25, and during the cutting process, the pressing plate 22 synchronously follows the cutter 31 to descend, pressing one end of the sticky sheet 25 to stick to the core plate.

[0057] A mounting roller 32 is provided on the conveying shaft of the conveying roller 30, a pull rope 33 is wound around the mounting roller 32, and the pull rope 33 is connected to the cutter 31. A resist shaft is provided on the chopping plate 24, and the side wall of the resist shaft contacts the pull rope 33. The pull rope 33 is used to gradually lower and reel in the process of the conveying roller 30 rotating, and the cutter 31 is pulled down in the process.

[0058] A triangular block (not shown in the figure) is arranged on the conveying shaft of the conveying roller 30 via a spring, and a clamping groove matching with the triangular block is arranged inside the mounting roller 32 .

[0059] When the conveying shaft of the conveying roller 30 rotates, the cooperation between the triangular block and the clamping groove can drive the installation roller 32 to rotate. When the installation roller 32 drives the cutter 31 to drop to the bottom through the pull rope 33, the pull rope 33 is reversely limited by the cutter 31, and the installation roller 32 cannot rotate. At this time, the triangular block releases the cooperation with the clamping groove, and the cutter 31 follows the pressing plate 22 to return to the initial state under the action of the spring, and the installation roller 32 is driven to rotate in the opposite direction by the pull rope 33 and returns to the initial state to prepare for the next operation of the cutter 31.

[0060] Reference Figure 1 and Figure 2 As shown, it is a schematic diagram of the structure that drives the probe 12 to move; specifically, the movable structure 11 also includes a movable rod 113, and sliding grooves are relatively opened on both sides of the lifting frame 10 in the width direction, and a first screw 114 is rotatably arranged inside one of the sliding grooves, and both ends of the movable rod 113 are slidably arranged inside the sliding groove, and one end of the movable rod 113 is threadedly connected to the first screw 114.

[0061] The movable structure 11 further includes a second screw rod 115. A second slide groove is provided on one side of the movable rod 113 close to the support plate 1. The second screw rod 115 is rotatably installed inside the second slide groove, and one end of the installation rod 13 is slidably installed inside the second slide groove.

[0062] The first screw rod 114 drives the mounting rod 13 on the movable rod 113 to move along the length direction of the lifting frame 10, and the second screw rod 115 drives the mounting rod 13 to move along the length direction of the movable rod 113, that is, the width direction of the lifting frame 10, so that the probe 12 on the mounting rod 13 can move arbitrarily within the range defined by the lifting frame 10.

[0063] Refer to Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown in

[0064] The feeding mechanism 40 includes an L-shaped feeding rod 400. A feeding groove is formed at one end of the feeding rod 400 away from the support plate 1. Clamping plates 401 are symmetrically arranged on the feeding rod 400 through first springs. One end of the feeding rod 400 close to the support plate 1 is slidably arranged on the support plate 1.

[0065] The clamping mechanism 41 includes a U-shaped plate 410. The U-shaped plate 410 is arranged on the telescopic rod on one side of the support plate 1. Clamping plates 411 are symmetrically installed on the U-shaped plate 410 through second springs; the core board to be tested is placed in the feeding groove on the feeding rod 400. The core board is pushed close to the U-shaped plate 410 by the movement of the feeding rod 400, and one end of the core board is placed between the two clamping plates 411 along the length direction of the U-shaped plate 410 for fixation.

[0066] The clamping mechanism 41 further includes a fixing member 5 for fixedly clamping the core board.

[0067] Refer to Figure 5 , Figure 8 and Fig. 9 As shown in

[0068] After the core board is placed, the third screw rod 50 is driven to rotate, causing the moving seat 51 to move towards the direction of the C-shaped plate 410. When the I-shaped block 54 away from the C-shaped plate 410 is about to contact the core board, the spring rod 53 contracts synchronously, driving the I-shaped block 54 on the spring rod 53 to gradually clamp the three sides of the core board using the fixing ring 55.

[0069] Refer to Figure 8 、 Fig. 9 and Fig.10 As shown, it is the structural schematic diagram for driving the telescopic movement of the spring rod 53; specifically, a stretching member 6 for driving the telescopic movement of the spring rod 53 is provided on the moving seat 51. The stretching member 6 includes a fourth screw rod 60 rotatably arranged on the moving seat 51 and sleeved outside the fixed shaft 52. A stretching block 61 is threadedly installed on the fourth screw rod 60. Equally spaced stretching rods 62 corresponding to the spring rod 53 are hingedly arranged on the stretching block 61. The end of the stretching rod 62 away from the stretching block 61 is hingedly connected to the telescopic end of the spring rod 53. When the fourth screw rod 60 rotates, it will drive the stretching block 61 to move up and down. When the stretching block 61 moves downward, it will pull the telescopic end of the spring rod 53 through the stretching rod 62 to contract, thereby adjusting the distance between the I-shaped blocks 54 on the spring rod 53.

[0070] Refer to Figure 5 、 Figure 8 and Fig. 9 As shown, it is the structural schematic diagram for driving the rotation of the fourth screw rod 60; specifically, a driving member 7 for causing the fourth screw rod 60 to rotate is provided on the support plate 1. The driving member 7 includes a driving shaft 70. The driving shaft 70 is rotatably arranged on one side of the stretching block 61 along the width direction of the moving seat 51. A driving rack 71 is arranged on the support plate 1 along its length direction. A driving gear 72 meshing with the driving rack 71 is installed on the driving shaft 70. A first bevel gear 73 sleeved outside the fourth screw rod 60 is rotatably installed on the moving seat 51. A second bevel gear 74 meshing with the first bevel gear 73 is connected to the driving shaft 70.

[0071] When the moving seat 51 slides on the support plate 1, the driving gear 72 of the driving shaft 70 on the moving seat 51 will mesh with the driving rack 71, driving the driving shaft 70 to rotate in the reverse direction. Subsequently, the second bevel gear 74 on the driving shaft 70 drives the first bevel gear 73 meshing with it to transmit power, according to core boards of different sizes.

[0072] A driving ring 75 is installed on the fourth screw rod 60. A plugging block 76 is arranged on the driving ring 75 through an electric push rod. A plugging groove corresponding to the plugging block 76 is formed on the first bevel gear 73. After the moving seat 51 moves a certain distance, the plugging block 76 of the driving ring 75 around the electric push rod will enter the plugging groove through the electric push rod. At this time, when the first bevel gear 73 rotates, it can drive the driving ring 75 to rotate. The driving ring 75 can drive the fourth screw rod 60 to rotate on the moving seat 51, and then control the up and down movement of the stretching block 61.

[0073] By controlling the moving distance of the moving seat 51, the telescopic length of the spring rod 53 can be adjusted, so as to fix the core plates of different sizes.

[0074] Embodiment 2:

[0075] On the basis of Embodiment 1, in order to further improve the flexibility of the probe 12, a C-shaped rod 80 is also proposed, which is beneficial to prevent the probe 12 from blocking the movement of the core plate before the core plate is placed in place, resulting in scratching of the core plate by the probe 12.

[0076] Referring to Figure 1 and Figure 8 As shown, which is a schematic structural diagram of driving the probe 12 to lift and lower. Specifically, a C-shaped rod 80 is also arranged on one side of the moving seat 51 away from the driving shaft 70. A fifth screw rod 81 is rotatably arranged at one end of the C-shaped rod 80 away from the moving seat 51. A lifting block 82 is threadedly installed on the fifth screw rod 81. The lifting block 82 is slidably connected to the lifting frame 10. When the fifth screw rod 81 rotates, it can drive the lifting block 82 to move along the height direction of the C-shaped plate 410, and then drive the lifting frame 10 to move up and down through the lifting block 82. When the core plate is placed in place, the whole lifting frame 10 moves downward so that the probe 12 is aligned with the part to be tested.

[0077] A synchronous shaft 83 is rotatably arranged on the C-shaped rod 80. Both ends of the synchronous shaft 83 are传动连接 with the third screw rod 50 and the fifth screw rod 81 through belts.

[0078] When the third screw rod 50 rotates, the fifth screw rod 81 will rotate and drive the lifting frame 10 to move downward through the synchronous shaft 83. When the third screw rod 50 stops rotating, when the core plate is placed in place, the fifth screw rod 81 stops moving, and the probe 12 on the lifting frame 10 is aligned with the test part.

[0079] During operation: In the first step, the core plate to be tested is placed in the feeding groove on the feeding rod 400. The core plate is pushed close to the C-shaped plate 410 through the movement of the feeding rod 400. One end of the core plate along the length direction of the C-shaped plate 410 is placed between the two clamping plates II 411 for fixation.

[0080] Step 2: After the core board is placed, drive the third screw rod 50 to rotate so that the moving seat 51 moves towards the direction of the C-shaped plate 410. When it is about to contact the core board away from the I-shaped block 54 of the C-shaped plate 410, the spring rod 53 contracts synchronously, driving the I-shaped block 54 on the spring rod 53 to gradually clamp the three sides of the core board by using the fixing ring 55.

[0081] Step 3: The probe 12 installed on the fixed rod 111, and the installation rod 13 will drive the probe 12 to move along the length direction of the lifting frame 10. Moreover, the adjusting rod 110 can also slide along its length direction on the installation rod 13. The probe 12 on the sliding rod 112 will adjust its rotation angle within the range defined by the lifting frame 10 through the adjusting rod 110, and the distance that the probe 12 moves on the adjusting rod 110 can be adjusted through the sliding rod 112. This enables the probe 12 on the sliding rod 112 to move arbitrarily within the range defined by the lifting frame 10. The two probes 12 are driven to move above the support plate 1 through the movable structure 11 to detect the core board fixed above the support plate 1.

[0082] Step 4: During the process of the moving seat 51 moving towards the direction of the C-shaped plate 410, the fifth screw rod 81 will rotate and drive the lifting frame 10 to move downward. When the core board is placed in place, the fifth screw rod 81 stops moving, and the probe 12 on the lifting frame 10 is aligned with the test part.

[0083] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0084] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A core board defect automatic detection device, comprising a support plate (1), characterized in that: On the support plate (1), lifting frames (10) are symmetrically arranged through telescopic rods. An active structure (11) is arranged on the lifting frames (10), and two probes (12) are arranged on the lifting frames (10). On the lifting frame (10), a mounting rod (13) consistent with the height direction of the lifting frame (10) is arranged through the active structure (11). The active structure (11) includes an adjusting rod (110). The adjusting rod (110) is rotatably arranged on the mounting rod (13). A fixing rod (111) is installed at the bottom of the mounting rod (13). A sliding rod (112) is slidably arranged on the adjusting rod (110). The two probes (12) are installed on the fixing rod (111) and the sliding rod (112). Marking structures (2) are arranged on both the fixing rod (111) and the sliding rod (112). The marking structure (2) includes a support rod (20). Both the fixing rod (111) and the sliding rod (112) are provided with support rods (20).

2. The core board defect automatic detection device according to claim 1, characterized in that: At one end of the support rod (20) far from the probe (12), a winding roller (21) is arranged. At one end of the support rod (20) close to the probe (12), a pressing plate (22) is slidably arranged along its height direction through a spring.

3. The core board defect automatic detection device according to claim 2 is characterized in that: On the support rod (20), a conveying plate (23) and a cutting plate (24) are sequentially arranged from the winding roller (21) to the pressing plate (22) direction. Both the conveying plate (23) and the cutting plate (24) are provided with conveying channels. A sticky sheet (25) is wound on the winding roller (21), and the sticky sheet (25) passes through the conveying channel and extends to the lower part of the pressing plate (22).

4. The core board defect automatic detection device according to claim 3 is characterized in that: Two conveying rollers (30) are arranged in the conveying channel on the conveying plate (23). One of the conveying rollers (30) is传动连接 with the winding roller (21) through a belt.

5. The core board defect automatic detection device according to claim 4 is characterized in that: A cutting knife (31) is slidably arranged above the sticky sheet (25) in the conveying channel on the cutting plate (24). The cutting knife (31) is connected with the pressing plate (22) through a synchronous rod.

6. The core board defect automatic detection device according to claim 5, characterized in that: An installation roller (32) is arranged on the conveying shaft of the conveying roller (30). A pull rope (33) is wound on the installation roller (32), and the pull rope (33) is connected with the cutting knife (31). An abutting shaft is arranged on the cutting plate (24), and the side wall of the abutting shaft abuts against the pull rope (33).

7. The core board defect automatic detection device according to claim 1, characterized in that: A clamping unit (4) for supporting and clamping the core board is further arranged on the support plate (1). The clamping unit (4) includes a feeding mechanism (40) and a clamping mechanism (41). The feeding mechanism (40) includes an L-shaped feeding rod (400). A feeding groove is arranged at one end of the feeding rod (400) far from the support plate (1). Clamping plates one (401) are symmetrically arranged on the feeding rod (400) through the first spring. One end of the feeding rod (400) close to the support plate (1) is slidably arranged on the support plate (1).

8. The core board defect automatic detection device according to claim 7 is characterized in that: The clamping mechanism (41) includes a U-shaped plate (410). The U-shaped plate (410) is arranged on the telescopic rod on one side of the support plate (1). Clamping plates two (411) are symmetrically installed on the U-shaped plate (410) through the second spring. The clamping mechanism (41) also includes a fixing member (5) for fixing and clamping the core board.

9. The core board defect automatic detection device according to claim 8, characterized in that: The fixing member (5) comprises a third screw rod (50), the third screw rod (50) is rotatably arranged on the supporting plate (1) along the length direction of the supporting plate (1), a movable seat (51) which is threadedly sleeved on the third screw rod (50) is slidably arranged on the supporting plate (1), a fixed shaft (52) is installed on the movable seat (51), and three spring rods (53) are equidistantly arranged along the axis of the fixed shaft (52) at one end away from the movable seat (51), and an I-shaped block (54) is installed at the telescopic end of the spring rod (53); A fixing ring (55) is symmetrically and slidably arranged on the I-shaped block (54) via a third spring.

10. A method for automatically detecting core board defects, comprising an automatic core board defect detection device according to any one of claims 1 to 9, characterized in that: The automatic detection method of core board defects is as follows: S1, test conveying: pushing the core board to be fixed between the two clamping plates (411) by moving the feeding rod (400); S2, test clamping: after the core board is placed, the spring rod (53) is synchronously contracted to drive the I-shaped block (54) on the spring rod (53) to gradually clamp the three sides of the core board using the fixing ring (55); S3, adjusting the probes (12): driving the two probes (12) to move above the support plate (1) through the movable structure (11) to detect the core plate fixed above the support plate (1); S4, probe (12) test: drive the lifting frame (10) to move downward, and when the core board is placed in place, the probe (12) on the lifting frame (10) is aligned with the test part.

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